diff --git a/NEWS b/NEWS
index 7df22e3e5..39fa6fcdb 100644
--- a/NEWS
+++ b/NEWS
@@ -114,6 +114,9 @@ New in spot 2.7.5.dev (not yet released)
     a better replacement for cleanup_parity() and colorize_parity().
     See https://spot.lrde.epita.fr/ipynb/parity.html for examples.
 
+  - The postprocessor and translator classes are now using
+    reduce_parity() for further simplifications.
+
 New in spot 2.7.5 (2019-06-05)
 
   Build:
diff --git a/spot/twaalgos/postproc.cc b/spot/twaalgos/postproc.cc
index 76749fdba..7ea8cb307 100644
--- a/spot/twaalgos/postproc.cc
+++ b/spot/twaalgos/postproc.cc
@@ -198,8 +198,7 @@ namespace spot
       tmp = sbacc(tmp);
     if (want_parity)
       {
-        if (COLORED_)
-          colorize_parity_here(tmp);
+        reduce_parity_here(tmp, COLORED_);
         parity_kind kind = parity_kind_any;
         parity_style style = parity_style_any;
         if ((type_ & ParityMin) == ParityMin)
@@ -241,16 +240,18 @@ namespace spot
       {
         if (PREF_ == Any && level_ == Low)
           return in;
-        if (!(want_parity && in->acc().is_parity()))
+        bool isparity = in->acc().is_parity();
+        if (isparity && in->is_existential()
+            && (type_ == Generic || want_parity))
+          return reduce_parity(in);
+        if (!(want_parity && isparity))
           {
             if (level_ == High)
               return simplify_acceptance(in);
             else
               return cleanup_acceptance(in);
           }
-        if (level_ == High)
-          return cleanup_parity(in);
-        return in;
+        return cleanup_parity(in);
       };
     a = simplify_acc(a);
 
diff --git a/spot/twaalgos/translate.cc b/spot/twaalgos/translate.cc
index 41f6dd34d..325c87c36 100644
--- a/spot/twaalgos/translate.cc
+++ b/spot/twaalgos/translate.cc
@@ -28,6 +28,7 @@
 #include <spot/twaalgos/isdet.hh>
 #include <spot/twaalgos/product.hh>
 #include <spot/twaalgos/sccinfo.hh>
+#include <spot/twaalgos/hoa.hh>
 
 namespace spot
 {
@@ -230,7 +231,9 @@ namespace spot
           om = *opt_;
         om.set("ltl-split", 0);
         translator translate_without_split(simpl_, &om);
-        translate_without_split.set_pref(pref_);
+        // Never force colored automata at intermediate steps.
+        // This is best added at the very end.
+        translate_without_split.set_pref(pref_ & ~Colored);
         translate_without_split.set_level(level_);
         translate_without_split.set_type(type_);
         auto transrun = [&](formula f)
@@ -302,6 +305,11 @@ namespace spot
               aut = product_susp(aut, susp_aut);
             else
               aut = product_or_susp(aut, susp_aut);
+            //if (aut && susp_aut)
+            //  {
+            //    print_hoa(std::cerr << "AUT\n", aut) << '\n';
+            //    print_hoa(std::cerr << "SUSPAUT\n", susp_aut) << '\n';
+            //  }
           }
         if (leading_x > 0)
           {
diff --git a/tests/core/genltl.test b/tests/core/genltl.test
index b73a40236..c0078a3be 100755
--- a/tests/core/genltl.test
+++ b/tests/core/genltl.test
@@ -1,6 +1,6 @@
 #!/bin/sh
 # -*- coding: utf-8 -*-
-# Copyright (C) 2016-2018 Laboratoire de Recherche et Développement
+# Copyright (C) 2016-2019 Laboratoire de Recherche et Développement
 # de l'Epita (LRDE).
 #
 # This file is part of Spot, a model checking library.
@@ -185,28 +185,28 @@ cat >exp<<EOF
 "ms-example=4,3",11,11
 "ms-example=4,4",12,12
 "ms-phi-r=0",1,2
-"ms-phi-r=1",1,16
-"ms-phi-r=2",1,29
-"ms-phi-s=0",1,5
-"ms-phi-s=1",1,8
-"ms-phi-s=2",1,494
+"ms-phi-r=1",1,12
+"ms-phi-r=2",1,28
+"ms-phi-s=0",1,3
+"ms-phi-s=1",1,7
+"ms-phi-s=2",1,375
 "ms-phi-h=0",1,1
 "ms-phi-h=1",2,3
 "ms-phi-h=2",4,7
 "ms-phi-h=3",8,15
 "ms-phi-h=4",16,31
 "gf-equiv=0",1,1
-"gf-equiv=1",1,4
-"gf-equiv=2",1,8
-"gf-equiv=3",1,21
-"gf-equiv=4",1,81
-"gf-equiv=5",1,431
+"gf-equiv=1",1,3
+"gf-equiv=2",1,7
+"gf-equiv=3",1,20
+"gf-equiv=4",1,80
+"gf-equiv=5",1,430
 "gf-implies=0",1,1
-"gf-implies=1",1,5
-"gf-implies=2",1,12
-"gf-implies=3",1,41
-"gf-implies=4",1,186
-"gf-implies=5",1,1047
+"gf-implies=1",1,4
+"gf-implies=2",1,11
+"gf-implies=3",1,33
+"gf-implies=4",1,131
+"gf-implies=5",1,653
 "gf-equiv-xn=1",2,2
 "gf-equiv-xn=2",4,4
 "gf-equiv-xn=3",8,8
diff --git a/tests/core/parity2.test b/tests/core/parity2.test
index 631937de7..471793355 100755
--- a/tests/core/parity2.test
+++ b/tests/core/parity2.test
@@ -317,14 +317,14 @@ State: 1
 [1&2] 4 {2}
 State: 2
 [!0] 1 {2}
-[0&1&2] 2 {1}
 [0&!1&2] 2 {2}
+[0&1&2] 2 {1}
 State: 3
 [0] 3 {2}
 [0&1&2] 4 {2}
 State: 4
-[0&1&2] 4 {1}
 [0&!1&2] 4 {2}
+[0&1&2] 4 {1}
 --END--
 HOA: v1
 name: "FGa"
@@ -804,7 +804,7 @@ properties: trans-labels explicit-labels trans-acc deterministic
 State: 0
 [0&!1 | 0&!2] 0
 [!0] 1
-[0&1&2] 2 {1}
+[0&1&2] 2
 State: 1
 [!1 | !2] 3
 [1&2] 4
@@ -815,7 +815,7 @@ State: 2
 [0&1&2] 2 {1}
 State: 3
 [0&!1 | 0&!2] 3
-[0&1&2] 4 {1}
+[0&1&2] 4
 State: 4
 [0&!2] 3 {0}
 [0&!1&2] 4
@@ -865,7 +865,7 @@ properties: trans-labels explicit-labels trans-acc deterministic
 State: 0
 [0&!1 | 0&!2] 0
 [!0] 1
-[0&1&2] 2 {1}
+[0&1&2] 2
 State: 1
 [!1 | !2] 3
 [1&2] 4
@@ -876,7 +876,7 @@ State: 2
 [0&1&2] 2 {1}
 State: 3
 [0&!1 | 0&!2] 3
-[0&1&2] 4 {1}
+[0&1&2] 4
 State: 4
 [0&!2] 3 {0}
 [0&!1&2] 4
@@ -926,7 +926,7 @@ properties: trans-labels explicit-labels trans-acc deterministic
 State: 0
 [0&!1 | 0&!2] 0
 [!0] 1
-[0&1&2] 2 {0}
+[0&1&2] 2
 State: 1
 [!1 | !2] 3
 [1&2] 4
@@ -937,7 +937,7 @@ State: 2
 [0&1&2] 2 {0}
 State: 3
 [0&!1 | 0&!2] 3
-[0&1&2] 4 {0}
+[0&1&2] 4
 State: 4
 [0&!2] 3 {1}
 [0&!1&2] 4
@@ -988,22 +988,22 @@ properties: deterministic
 State: 0
 [0&!1 | 0&!2] 0 {2}
 [!0] 1 {2}
-[0&1&2] 2 {1}
+[0&1&2] 2 {2}
 State: 1
 [!1 | !2] 3 {2}
 [1&2] 4 {2}
 State: 2
 [0&!2] 0 {0}
 [!0] 1 {2}
-[0&1&2] 2 {1}
 [0&!1&2] 2 {2}
+[0&1&2] 2 {1}
 State: 3
 [0&!1 | 0&!2] 3 {2}
-[0&1&2] 4 {1}
+[0&1&2] 4 {2}
 State: 4
 [0&!2] 3 {0}
-[0&1&2] 4 {1}
 [0&!1&2] 4 {2}
+[0&1&2] 4 {1}
 --END--
 HOA: v1
 name: "FGa"
@@ -1050,22 +1050,22 @@ properties: deterministic
 State: 0
 [0&!1 | 0&!2] 0 {2}
 [!0] 1 {2}
-[0&1&2] 2 {1}
+[0&1&2] 2 {2}
 State: 1
 [!1 | !2] 3 {2}
 [1&2] 4 {2}
 State: 2
 [0&!2] 0 {0}
 [!0] 1 {2}
-[0&1&2] 2 {1}
 [0&!1&2] 2 {2}
+[0&1&2] 2 {1}
 State: 3
 [0&!1 | 0&!2] 3 {2}
-[0&1&2] 4 {1}
+[0&1&2] 4 {2}
 State: 4
 [0&!2] 3 {0}
-[0&1&2] 4 {1}
 [0&!1&2] 4 {2}
+[0&1&2] 4 {1}
 --END--
 HOA: v1
 name: "FGa"
@@ -1112,7 +1112,7 @@ properties: deterministic
 State: 0
 [0&!1 | 0&!2] 0 {1}
 [!0] 1 {1}
-[0&1&2] 2 {2}
+[0&1&2] 2 {1}
 State: 1
 [!1 | !2] 3 {1}
 [1&2] 4 {1}
@@ -1123,7 +1123,7 @@ State: 2
 [0&1&2] 2 {2}
 State: 3
 [0&!1 | 0&!2] 3 {1}
-[0&1&2] 4 {2}
+[0&1&2] 4 {1}
 State: 4
 [0&!2] 3 {3}
 [0&!1&2] 4 {1}
@@ -1135,20 +1135,17 @@ diff expected3 res3
 cat >expected4<<EOF
 HOA: v1
 name: "FGa"
-States: 2
+States: 1
 Start: 0
 AP: 1 "a"
-acc-name: Rabin 1
-Acceptance: 2 Fin(0) & Inf(1)
+acc-name: co-Buchi
+Acceptance: 1 Fin(0)
 properties: trans-labels explicit-labels trans-acc complete
 properties: deterministic stutter-invariant
 --BODY--
 State: 0
-[!0] 0
-[0] 1 {1}
-State: 1
+[0] 0
 [!0] 0 {0}
-[0] 1 {1}
 --END--
 HOA: v1
 name: "G(Fa & Fb)"
@@ -1199,20 +1196,17 @@ State: 4
 --END--
 HOA: v1
 name: "FGa"
-States: 2
+States: 1
 Start: 0
 AP: 1 "a"
-acc-name: Rabin 1
-Acceptance: 2 Fin(0) & Inf(1)
+acc-name: co-Buchi
+Acceptance: 1 Fin(0)
 properties: trans-labels explicit-labels trans-acc complete
 properties: deterministic stutter-invariant
 --BODY--
 State: 0
-[!0] 0
-[0] 1 {1}
-State: 1
+[0] 0
 [!0] 0 {0}
-[0] 1 {1}
 --END--
 HOA: v1
 name: "G(Fa & Fb)"
@@ -1263,20 +1257,17 @@ State: 4
 --END--
 HOA: v1
 name: "FGa"
-States: 2
+States: 1
 Start: 0
 AP: 1 "a"
 acc-name: parity max even 2
 Acceptance: 2 Fin(1) & Inf(0)
-properties: trans-labels explicit-labels trans-acc complete
+properties: trans-labels explicit-labels trans-acc colored complete
 properties: deterministic stutter-invariant
 --BODY--
 State: 0
-[!0] 0
-[0] 1 {0}
-State: 1
+[0] 0 {0}
 [!0] 0 {1}
-[0] 1 {0}
 --END--
 HOA: v1
 name: "G(Fa & Fb)"
@@ -1327,20 +1318,17 @@ State: 4
 --END--
 HOA: v1
 name: "FGa"
-States: 2
+States: 1
 Start: 0
 AP: 1 "a"
-acc-name: parity min odd 3
-Acceptance: 3 Fin(0) & (Inf(1) | Fin(2))
+acc-name: parity max even 2
+Acceptance: 2 Fin(1) & Inf(0)
 properties: trans-labels explicit-labels trans-acc colored complete
 properties: deterministic stutter-invariant
 --BODY--
 State: 0
-[!0] 0 {2}
-[0] 1 {1}
-State: 1
-[!0] 0 {0}
-[0] 1 {1}
+[0] 0 {0}
+[!0] 0 {1}
 --END--
 HOA: v1
 name: "G(Fa & Fb)"
@@ -1392,20 +1380,17 @@ State: 4
 --END--
 HOA: v1
 name: "FGa"
-States: 2
+States: 1
 Start: 0
 AP: 1 "a"
-acc-name: parity min odd 3
-Acceptance: 3 Fin(0) & (Inf(1) | Fin(2))
+acc-name: Rabin 1
+Acceptance: 2 Fin(0) & Inf(1)
 properties: trans-labels explicit-labels trans-acc colored complete
 properties: deterministic stutter-invariant
 --BODY--
 State: 0
-[!0] 0 {2}
-[0] 1 {1}
-State: 1
+[0] 0 {1}
 [!0] 0 {0}
-[0] 1 {1}
 --END--
 HOA: v1
 name: "G(Fa & Fb)"
@@ -1457,20 +1442,17 @@ State: 4
 --END--
 HOA: v1
 name: "FGa"
-States: 2
+States: 1
 Start: 0
 AP: 1 "a"
-acc-name: parity max even 4
-Acceptance: 4 Fin(3) & (Inf(2) | (Fin(1) & Inf(0)))
+acc-name: parity max even 2
+Acceptance: 2 Fin(1) & Inf(0)
 properties: trans-labels explicit-labels trans-acc colored complete
 properties: deterministic stutter-invariant
 --BODY--
 State: 0
+[0] 0 {0}
 [!0] 0 {1}
-[0] 1 {2}
-State: 1
-[!0] 0 {3}
-[0] 1 {2}
 --END--
 HOA: v1
 name: "G(Fa & Fb)"
@@ -1535,7 +1517,7 @@ cat >expected <<EOF
 "input.states","output.states"
 2,3
 3,15
-4,129
-5,2057
+4,120
+5,1801
 EOF
 diff sizes.csv expected
diff --git a/tests/core/sccsimpl.test b/tests/core/sccsimpl.test
index ae9f456a1..5694c0d1c 100755
--- a/tests/core/sccsimpl.test
+++ b/tests/core/sccsimpl.test
@@ -292,16 +292,16 @@ HOA: v1
 States: 2
 Start: 1
 AP: 1 "p0"
-acc-name: Rabin 1
-Acceptance: 2 Fin(0) & Inf(1)
-properties: trans-labels explicit-labels trans-acc complete
+acc-name: Buchi
+Acceptance: 1 Inf(0)
+properties: trans-labels explicit-labels state-acc complete
 properties: deterministic
 --BODY--
-State: 0
-[t] 0 {1}
+State: 0 {0}
+[t] 0
 State: 1
 [0] 0
-[!0] 1 {0}
+[!0] 1
 --END--
 EOF
 cat output
diff --git a/tests/python/twagraph-internals.ipynb b/tests/python/twagraph-internals.ipynb
index 0e255a9b8..594e5c3eb 100644
--- a/tests/python/twagraph-internals.ipynb
+++ b/tests/python/twagraph-internals.ipynb
@@ -56,16 +56,16 @@
        "<!-- Generated by graphviz version 2.40.1 (20161225.0304)\n",
        " -->\n",
        "<!-- Pages: 1 -->\n",
-       "<svg width=\"198pt\" height=\"220pt\"\n",
-       " viewBox=\"0.00 0.00 197.50 219.60\" xmlns=\"http://www.w3.org/2000/svg\" xmlns:xlink=\"http://www.w3.org/1999/xlink\">\n",
-       "<g id=\"graph0\" class=\"graph\" transform=\"scale(1 1) rotate(0) translate(4 215.597)\">\n",
-       "<polygon fill=\"#ffffff\" stroke=\"transparent\" points=\"-4,4 -4,-215.597 193.5,-215.597 193.5,4 -4,4\"/>\n",
-       "<text text-anchor=\"start\" x=\"42.75\" y=\"-197.397\" font-family=\"Lato\" font-size=\"14.00\" fill=\"#000000\">Fin(</text>\n",
-       "<text text-anchor=\"start\" x=\"67.75\" y=\"-197.397\" font-family=\"Lato\" font-size=\"14.00\" fill=\"#1f78b4\">⓿</text>\n",
-       "<text text-anchor=\"start\" x=\"83.75\" y=\"-197.397\" font-family=\"Lato\" font-size=\"14.00\" fill=\"#000000\">) &amp; Inf(</text>\n",
-       "<text text-anchor=\"start\" x=\"126.75\" y=\"-197.397\" font-family=\"Lato\" font-size=\"14.00\" fill=\"#ff4da0\">❶</text>\n",
-       "<text text-anchor=\"start\" x=\"142.75\" y=\"-197.397\" font-family=\"Lato\" font-size=\"14.00\" fill=\"#000000\">)</text>\n",
-       "<text text-anchor=\"start\" x=\"65.75\" y=\"-183.397\" font-family=\"Lato\" font-size=\"14.00\" fill=\"#000000\">[Rabin 1]</text>\n",
+       "<svg width=\"198pt\" height=\"222pt\"\n",
+       " viewBox=\"0.00 0.00 197.50 221.60\" xmlns=\"http://www.w3.org/2000/svg\" xmlns:xlink=\"http://www.w3.org/1999/xlink\">\n",
+       "<g id=\"graph0\" class=\"graph\" transform=\"scale(1 1) rotate(0) translate(4 217.597)\">\n",
+       "<polygon fill=\"#ffffff\" stroke=\"transparent\" points=\"-4,4 -4,-217.597 193.5,-217.597 193.5,4 -4,4\"/>\n",
+       "<text text-anchor=\"start\" x=\"42.75\" y=\"-199.397\" font-family=\"Lato\" font-size=\"14.00\" fill=\"#000000\">Fin(</text>\n",
+       "<text text-anchor=\"start\" x=\"67.75\" y=\"-199.397\" font-family=\"Lato\" font-size=\"14.00\" fill=\"#1f78b4\">⓿</text>\n",
+       "<text text-anchor=\"start\" x=\"83.75\" y=\"-199.397\" font-family=\"Lato\" font-size=\"14.00\" fill=\"#000000\">) &amp; Inf(</text>\n",
+       "<text text-anchor=\"start\" x=\"126.75\" y=\"-199.397\" font-family=\"Lato\" font-size=\"14.00\" fill=\"#ff4da0\">❶</text>\n",
+       "<text text-anchor=\"start\" x=\"142.75\" y=\"-199.397\" font-family=\"Lato\" font-size=\"14.00\" fill=\"#000000\">)</text>\n",
+       "<text text-anchor=\"start\" x=\"65.75\" y=\"-185.397\" font-family=\"Lato\" font-size=\"14.00\" fill=\"#000000\">[Rabin 1]</text>\n",
        "<!-- I -->\n",
        "<!-- 0 -->\n",
        "<g id=\"node2\" class=\"node\">\n",
@@ -84,17 +84,16 @@
        "<title>0&#45;&gt;0</title>\n",
        "<path fill=\"none\" stroke=\"#000000\" d=\"M52.7643,-81.3787C52.2144,-90.9119 53.293,-99.597 56,-99.597 57.988,-99.597 59.0977,-94.913 59.3292,-88.6491\"/>\n",
        "<polygon fill=\"#000000\" stroke=\"#000000\" points=\"59.2357,-81.3787 62.4756,-88.3376 59.2808,-84.8784 59.3258,-88.3781 59.3258,-88.3781 59.3258,-88.3781 59.2808,-84.8784 56.1761,-88.4187 59.2357,-81.3787 59.2357,-81.3787\"/>\n",
-       "<text text-anchor=\"start\" x=\"39\" y=\"-118.397\" font-family=\"Lato\" font-size=\"14.00\" fill=\"#000000\">a &amp; b</text>\n",
-       "<text text-anchor=\"start\" x=\"48\" y=\"-103.397\" font-family=\"Lato\" font-size=\"14.00\" fill=\"#ff4da0\">❶</text>\n",
+       "<text text-anchor=\"start\" x=\"37.5\" y=\"-118.397\" font-family=\"Lato\" font-size=\"14.00\" fill=\"#000000\">a &amp; !b</text>\n",
+       "<text text-anchor=\"start\" x=\"48\" y=\"-103.397\" font-family=\"Lato\" font-size=\"14.00\" fill=\"#1f78b4\">⓿</text>\n",
        "</g>\n",
        "<!-- 0&#45;&gt;0 -->\n",
        "<g id=\"edge3\" class=\"edge\">\n",
        "<title>0&#45;&gt;0</title>\n",
        "<path fill=\"none\" stroke=\"#000000\" d=\"M50.9906,-81.1741C47.5451,-102.315 49.2148,-129.597 56,-129.597 62.043,-129.597 64.0285,-107.9565 61.9564,-88.2876\"/>\n",
        "<polygon fill=\"#000000\" stroke=\"#000000\" points=\"61.0094,-81.1741 65.0556,-87.6972 61.4713,-84.6435 61.9332,-88.1129 61.9332,-88.1129 61.9332,-88.1129 61.4713,-84.6435 58.8107,-88.5286 61.0094,-81.1741 61.0094,-81.1741\"/>\n",
-       "<text text-anchor=\"start\" x=\"37.5\" y=\"-147.397\" font-family=\"Lato\" font-size=\"14.00\" fill=\"#000000\">a &amp; !b</text>\n",
-       "<text text-anchor=\"start\" x=\"40\" y=\"-133.397\" font-family=\"Lato\" font-size=\"14.00\" fill=\"#1f78b4\">⓿</text>\n",
-       "<text text-anchor=\"start\" x=\"56\" y=\"-133.397\" font-family=\"Lato\" font-size=\"14.00\" fill=\"#ff4da0\">❶</text>\n",
+       "<text text-anchor=\"start\" x=\"39\" y=\"-148.397\" font-family=\"Lato\" font-size=\"14.00\" fill=\"#000000\">a &amp; b</text>\n",
+       "<text text-anchor=\"start\" x=\"48\" y=\"-133.397\" font-family=\"Lato\" font-size=\"14.00\" fill=\"#ff4da0\">❶</text>\n",
        "</g>\n",
        "<!-- 1 -->\n",
        "<g id=\"node3\" class=\"node\">\n",
@@ -137,23 +136,22 @@
        "<title>1&#45;&gt;1</title>\n",
        "<path fill=\"none\" stroke=\"#000000\" d=\"M164.0012,-81.0069C163.0681,-90.6849 164.7344,-99.597 169,-99.597 172.1326,-99.597 173.8633,-94.7906 174.1921,-88.4042\"/>\n",
        "<polygon fill=\"#000000\" stroke=\"#000000\" points=\"173.9988,-81.0069 177.3307,-87.9221 174.0903,-84.5057 174.1818,-88.0045 174.1818,-88.0045 174.1818,-88.0045 174.0903,-84.5057 171.0329,-88.0868 173.9988,-81.0069 173.9988,-81.0069\"/>\n",
-       "<text text-anchor=\"start\" x=\"150.5\" y=\"-118.397\" font-family=\"Lato\" font-size=\"14.00\" fill=\"#000000\">!a &amp; b</text>\n",
-       "<text text-anchor=\"start\" x=\"161\" y=\"-103.397\" font-family=\"Lato\" font-size=\"14.00\" fill=\"#ff4da0\">❶</text>\n",
+       "<text text-anchor=\"start\" x=\"148.5\" y=\"-118.397\" font-family=\"Lato\" font-size=\"14.00\" fill=\"#000000\">!a &amp; !b</text>\n",
+       "<text text-anchor=\"start\" x=\"161\" y=\"-103.397\" font-family=\"Lato\" font-size=\"14.00\" fill=\"#1f78b4\">⓿</text>\n",
        "</g>\n",
        "<!-- 1&#45;&gt;1 -->\n",
        "<g id=\"edge9\" class=\"edge\">\n",
        "<title>1&#45;&gt;1</title>\n",
        "<path fill=\"none\" stroke=\"#000000\" d=\"M161.4634,-80.1928C155.769,-101.4602 158.2813,-129.597 169,-129.597 178.5883,-129.597 181.6098,-107.0823 178.0645,-87.1101\"/>\n",
        "<polygon fill=\"#000000\" stroke=\"#000000\" points=\"176.5366,-80.1928 181.1223,-86.3487 177.2915,-83.6105 178.0464,-87.0281 178.0464,-87.0281 178.0464,-87.0281 177.2915,-83.6105 174.9706,-87.7075 176.5366,-80.1928 176.5366,-80.1928\"/>\n",
-       "<text text-anchor=\"start\" x=\"148.5\" y=\"-147.397\" font-family=\"Lato\" font-size=\"14.00\" fill=\"#000000\">!a &amp; !b</text>\n",
-       "<text text-anchor=\"start\" x=\"153\" y=\"-133.397\" font-family=\"Lato\" font-size=\"14.00\" fill=\"#1f78b4\">⓿</text>\n",
-       "<text text-anchor=\"start\" x=\"169\" y=\"-133.397\" font-family=\"Lato\" font-size=\"14.00\" fill=\"#ff4da0\">❶</text>\n",
+       "<text text-anchor=\"start\" x=\"150.5\" y=\"-148.397\" font-family=\"Lato\" font-size=\"14.00\" fill=\"#000000\">!a &amp; b</text>\n",
+       "<text text-anchor=\"start\" x=\"161\" y=\"-133.397\" font-family=\"Lato\" font-size=\"14.00\" fill=\"#ff4da0\">❶</text>\n",
        "</g>\n",
        "</g>\n",
        "</svg>\n"
       ],
       "text/plain": [
-       "<spot.twa_graph; proxy of <Swig Object of type 'std::shared_ptr< spot::twa_graph > *' at 0x7f616c1788a0> >"
+       "<spot.twa_graph; proxy of <Swig Object of type 'std::shared_ptr< spot::twa_graph > *' at 0x7f2950267b40> >"
       ]
      },
      "execution_count": 3,
@@ -219,12 +217,12 @@
        "<polygon fill=\"#00ffff\" points=\"161.5,-343 161.5,-364 222.5,-364 222.5,-343 161.5,-343\" stroke=\"transparent\"/>\n",
        "<polyline fill=\"none\" points=\"161.5,-343 222.5,-343 \" stroke=\"#000000\"/>\n",
        "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"176.5\" y=\"-349.8\">edges</text>\n",
-       "<polygon fill=\"#00ffff\" points=\"222.5,-343 222.5,-364 260.5,-364 260.5,-343 222.5,-343\" stroke=\"transparent\"/>\n",
-       "<polyline fill=\"none\" points=\"222.5,-343 260.5,-343 \" stroke=\"#000000\"/>\n",
-       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"238\" y=\"-349.8\">1</text>\n",
-       "<polygon fill=\"#00ffff\" points=\"260.5,-343 260.5,-364 303.5,-364 303.5,-343 260.5,-343\" stroke=\"transparent\"/>\n",
-       "<polyline fill=\"none\" points=\"260.5,-343 303.5,-343 \" stroke=\"#000000\"/>\n",
-       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"278.5\" y=\"-349.8\">2</text>\n",
+       "<polygon fill=\"#00ffff\" points=\"222.5,-343 222.5,-364 265.5,-364 265.5,-343 222.5,-343\" stroke=\"transparent\"/>\n",
+       "<polyline fill=\"none\" points=\"222.5,-343 265.5,-343 \" stroke=\"#000000\"/>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"240.5\" y=\"-349.8\">1</text>\n",
+       "<polygon fill=\"#00ffff\" points=\"265.5,-343 265.5,-364 303.5,-364 303.5,-343 265.5,-343\" stroke=\"transparent\"/>\n",
+       "<polyline fill=\"none\" points=\"265.5,-343 303.5,-343 \" stroke=\"#000000\"/>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"281\" y=\"-349.8\">2</text>\n",
        "<polygon fill=\"#00ffff\" points=\"303.5,-343 303.5,-364 346.5,-364 346.5,-343 303.5,-343\" stroke=\"transparent\"/>\n",
        "<polyline fill=\"none\" points=\"303.5,-343 346.5,-343 \" stroke=\"#000000\"/>\n",
        "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"321.5\" y=\"-349.8\">3</text>\n",
@@ -237,18 +235,18 @@
        "<polygon fill=\"#00ffff\" points=\"431.5,-343 431.5,-364 474.5,-364 474.5,-343 431.5,-343\" stroke=\"transparent\"/>\n",
        "<polyline fill=\"none\" points=\"431.5,-343 474.5,-343 \" stroke=\"#000000\"/>\n",
        "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"449.5\" y=\"-349.8\">6</text>\n",
-       "<polygon fill=\"#00ffff\" points=\"474.5,-343 474.5,-364 517.5,-364 517.5,-343 474.5,-343\" stroke=\"transparent\"/>\n",
-       "<polyline fill=\"none\" points=\"474.5,-343 517.5,-343 \" stroke=\"#000000\"/>\n",
-       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"492.5\" y=\"-349.8\">7</text>\n",
-       "<polygon fill=\"#00ffff\" points=\"517.5,-343 517.5,-364 564.5,-364 564.5,-343 517.5,-343\" stroke=\"transparent\"/>\n",
-       "<polyline fill=\"none\" points=\"517.5,-343 564.5,-343 \" stroke=\"#000000\"/>\n",
-       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"537.5\" y=\"-349.8\">8</text>\n",
+       "<polygon fill=\"#00ffff\" points=\"474.5,-343 474.5,-364 521.5,-364 521.5,-343 474.5,-343\" stroke=\"transparent\"/>\n",
+       "<polyline fill=\"none\" points=\"474.5,-343 521.5,-343 \" stroke=\"#000000\"/>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"494.5\" y=\"-349.8\">7</text>\n",
+       "<polygon fill=\"#00ffff\" points=\"521.5,-343 521.5,-364 564.5,-364 564.5,-343 521.5,-343\" stroke=\"transparent\"/>\n",
+       "<polyline fill=\"none\" points=\"521.5,-343 564.5,-343 \" stroke=\"#000000\"/>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"539.5\" y=\"-349.8\">8</text>\n",
        "<polygon fill=\"none\" points=\"161.5,-322 161.5,-343 222.5,-343 222.5,-322 161.5,-322\" stroke=\"#000000\"/>\n",
        "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"178.5\" y=\"-328.8\">cond</text>\n",
-       "<polygon fill=\"none\" points=\"222.5,-322 222.5,-343 260.5,-343 260.5,-322 222.5,-322\" stroke=\"#000000\"/>\n",
-       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"225.5\" y=\"-328.8\">a &amp; b</text>\n",
-       "<polygon fill=\"none\" points=\"260.5,-322 260.5,-343 303.5,-343 303.5,-322 260.5,-322\" stroke=\"#000000\"/>\n",
-       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"263.5\" y=\"-328.8\">a &amp; !b</text>\n",
+       "<polygon fill=\"none\" points=\"222.5,-322 222.5,-343 265.5,-343 265.5,-322 222.5,-322\" stroke=\"#000000\"/>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"225.5\" y=\"-328.8\">a &amp; !b</text>\n",
+       "<polygon fill=\"none\" points=\"265.5,-322 265.5,-343 303.5,-343 303.5,-322 265.5,-322\" stroke=\"#000000\"/>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"268.5\" y=\"-328.8\">a &amp; b</text>\n",
        "<polygon fill=\"none\" points=\"303.5,-322 303.5,-343 346.5,-343 346.5,-322 303.5,-322\" stroke=\"#000000\"/>\n",
        "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"306.5\" y=\"-328.8\">!a &amp; b</text>\n",
        "<polygon fill=\"none\" points=\"346.5,-322 346.5,-343 393.5,-343 393.5,-322 346.5,-322\" stroke=\"#000000\"/>\n",
@@ -257,16 +255,16 @@
        "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"396.5\" y=\"-328.8\">a &amp; b</text>\n",
        "<polygon fill=\"none\" points=\"431.5,-322 431.5,-343 474.5,-343 474.5,-322 431.5,-322\" stroke=\"#000000\"/>\n",
        "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"434.5\" y=\"-328.8\">a &amp; !b</text>\n",
-       "<polygon fill=\"none\" points=\"474.5,-322 474.5,-343 517.5,-343 517.5,-322 474.5,-322\" stroke=\"#000000\"/>\n",
-       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"477.5\" y=\"-328.8\">!a &amp; b</text>\n",
-       "<polygon fill=\"none\" points=\"517.5,-322 517.5,-343 564.5,-343 564.5,-322 517.5,-322\" stroke=\"#000000\"/>\n",
-       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"520.5\" y=\"-328.8\">!a &amp; !b</text>\n",
+       "<polygon fill=\"none\" points=\"474.5,-322 474.5,-343 521.5,-343 521.5,-322 474.5,-322\" stroke=\"#000000\"/>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"477.5\" y=\"-328.8\">!a &amp; !b</text>\n",
+       "<polygon fill=\"none\" points=\"521.5,-322 521.5,-343 564.5,-343 564.5,-322 521.5,-322\" stroke=\"#000000\"/>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"524.5\" y=\"-328.8\">!a &amp; b</text>\n",
        "<polygon fill=\"none\" points=\"161.5,-301 161.5,-322 222.5,-322 222.5,-301 161.5,-301\" stroke=\"#000000\"/>\n",
        "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"182.5\" y=\"-307.8\">acc</text>\n",
-       "<polygon fill=\"none\" points=\"222.5,-301 222.5,-322 260.5,-322 260.5,-301 222.5,-301\" stroke=\"#000000\"/>\n",
-       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"231\" y=\"-307.8\">{1}</text>\n",
-       "<polygon fill=\"none\" points=\"260.5,-301 260.5,-322 303.5,-322 303.5,-301 260.5,-301\" stroke=\"#000000\"/>\n",
-       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"266.5\" y=\"-307.8\">{0,1}</text>\n",
+       "<polygon fill=\"none\" points=\"222.5,-301 222.5,-322 265.5,-322 265.5,-301 222.5,-301\" stroke=\"#000000\"/>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"233.5\" y=\"-307.8\">{0}</text>\n",
+       "<polygon fill=\"none\" points=\"265.5,-301 265.5,-322 303.5,-322 303.5,-301 265.5,-301\" stroke=\"#000000\"/>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"274\" y=\"-307.8\">{1}</text>\n",
        "<polygon fill=\"none\" points=\"303.5,-301 303.5,-322 346.5,-322 346.5,-301 303.5,-301\" stroke=\"#000000\"/>\n",
        "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"318\" y=\"-307.8\">{}</text>\n",
        "<polygon fill=\"none\" points=\"346.5,-301 346.5,-322 393.5,-322 393.5,-301 346.5,-301\" stroke=\"#000000\"/>\n",
@@ -275,18 +273,18 @@
        "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"405.5\" y=\"-307.8\">{}</text>\n",
        "<polygon fill=\"none\" points=\"431.5,-301 431.5,-322 474.5,-322 474.5,-301 431.5,-301\" stroke=\"#000000\"/>\n",
        "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"442.5\" y=\"-307.8\">{0}</text>\n",
-       "<polygon fill=\"none\" points=\"474.5,-301 474.5,-322 517.5,-322 517.5,-301 474.5,-301\" stroke=\"#000000\"/>\n",
-       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"485.5\" y=\"-307.8\">{1}</text>\n",
-       "<polygon fill=\"none\" points=\"517.5,-301 517.5,-322 564.5,-322 564.5,-301 517.5,-301\" stroke=\"#000000\"/>\n",
-       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"525.5\" y=\"-307.8\">{0,1}</text>\n",
+       "<polygon fill=\"none\" points=\"474.5,-301 474.5,-322 521.5,-322 521.5,-301 474.5,-301\" stroke=\"#000000\"/>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"487.5\" y=\"-307.8\">{0}</text>\n",
+       "<polygon fill=\"none\" points=\"521.5,-301 521.5,-322 564.5,-322 564.5,-301 521.5,-301\" stroke=\"#000000\"/>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"532.5\" y=\"-307.8\">{1}</text>\n",
        "<polygon fill=\"none\" points=\"161.5,-280 161.5,-301 222.5,-301 222.5,-280 161.5,-280\" stroke=\"#000000\"/>\n",
        "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"184\" y=\"-286.8\">dst</text>\n",
-       "<polygon fill=\"#ffff00\" points=\"222.5,-280 222.5,-301 260.5,-301 260.5,-280 222.5,-280\" stroke=\"transparent\"/>\n",
-       "<polygon fill=\"none\" points=\"222.5,-280 222.5,-301 260.5,-301 260.5,-280 222.5,-280\" stroke=\"#000000\"/>\n",
-       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"238\" y=\"-286.8\">0</text>\n",
-       "<polygon fill=\"#ffff00\" points=\"260.5,-280 260.5,-301 303.5,-301 303.5,-280 260.5,-280\" stroke=\"transparent\"/>\n",
-       "<polygon fill=\"none\" points=\"260.5,-280 260.5,-301 303.5,-301 303.5,-280 260.5,-280\" stroke=\"#000000\"/>\n",
-       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"278.5\" y=\"-286.8\">0</text>\n",
+       "<polygon fill=\"#ffff00\" points=\"222.5,-280 222.5,-301 265.5,-301 265.5,-280 222.5,-280\" stroke=\"transparent\"/>\n",
+       "<polygon fill=\"none\" points=\"222.5,-280 222.5,-301 265.5,-301 265.5,-280 222.5,-280\" stroke=\"#000000\"/>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"240.5\" y=\"-286.8\">0</text>\n",
+       "<polygon fill=\"#ffff00\" points=\"265.5,-280 265.5,-301 303.5,-301 303.5,-280 265.5,-280\" stroke=\"transparent\"/>\n",
+       "<polygon fill=\"none\" points=\"265.5,-280 265.5,-301 303.5,-301 303.5,-280 265.5,-280\" stroke=\"#000000\"/>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"281\" y=\"-286.8\">0</text>\n",
        "<polygon fill=\"#ffff00\" points=\"303.5,-280 303.5,-301 346.5,-301 346.5,-280 303.5,-280\" stroke=\"transparent\"/>\n",
        "<polygon fill=\"none\" points=\"303.5,-280 303.5,-301 346.5,-301 346.5,-280 303.5,-280\" stroke=\"#000000\"/>\n",
        "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"321.5\" y=\"-286.8\">1</text>\n",
@@ -299,20 +297,20 @@
        "<polygon fill=\"#ffff00\" points=\"431.5,-280 431.5,-301 474.5,-301 474.5,-280 431.5,-280\" stroke=\"transparent\"/>\n",
        "<polygon fill=\"none\" points=\"431.5,-280 431.5,-301 474.5,-301 474.5,-280 431.5,-280\" stroke=\"#000000\"/>\n",
        "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"449.5\" y=\"-286.8\">0</text>\n",
-       "<polygon fill=\"#ffff00\" points=\"474.5,-280 474.5,-301 517.5,-301 517.5,-280 474.5,-280\" stroke=\"transparent\"/>\n",
-       "<polygon fill=\"none\" points=\"474.5,-280 474.5,-301 517.5,-301 517.5,-280 474.5,-280\" stroke=\"#000000\"/>\n",
-       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"492.5\" y=\"-286.8\">1</text>\n",
-       "<polygon fill=\"#ffff00\" points=\"517.5,-280 517.5,-301 564.5,-301 564.5,-280 517.5,-280\" stroke=\"transparent\"/>\n",
-       "<polygon fill=\"none\" points=\"517.5,-280 517.5,-301 564.5,-301 564.5,-280 517.5,-280\" stroke=\"#000000\"/>\n",
-       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"537.5\" y=\"-286.8\">1</text>\n",
+       "<polygon fill=\"#ffff00\" points=\"474.5,-280 474.5,-301 521.5,-301 521.5,-280 474.5,-280\" stroke=\"transparent\"/>\n",
+       "<polygon fill=\"none\" points=\"474.5,-280 474.5,-301 521.5,-301 521.5,-280 474.5,-280\" stroke=\"#000000\"/>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"494.5\" y=\"-286.8\">1</text>\n",
+       "<polygon fill=\"#ffff00\" points=\"521.5,-280 521.5,-301 564.5,-301 564.5,-280 521.5,-280\" stroke=\"transparent\"/>\n",
+       "<polygon fill=\"none\" points=\"521.5,-280 521.5,-301 564.5,-301 564.5,-280 521.5,-280\" stroke=\"#000000\"/>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"539.5\" y=\"-286.8\">1</text>\n",
        "<polygon fill=\"none\" points=\"161.5,-259 161.5,-280 222.5,-280 222.5,-259 161.5,-259\" stroke=\"#000000\"/>\n",
        "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"164.5\" y=\"-265.8\">next_succ</text>\n",
-       "<polygon fill=\"#00ffff\" points=\"222.5,-259 222.5,-280 260.5,-280 260.5,-259 222.5,-259\" stroke=\"transparent\"/>\n",
-       "<polygon fill=\"none\" points=\"222.5,-259 222.5,-280 260.5,-280 260.5,-259 222.5,-259\" stroke=\"#000000\"/>\n",
-       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"238\" y=\"-265.8\">2</text>\n",
-       "<polygon fill=\"#00ffff\" points=\"260.5,-259 260.5,-280 303.5,-280 303.5,-259 260.5,-259\" stroke=\"transparent\"/>\n",
-       "<polygon fill=\"none\" points=\"260.5,-259 260.5,-280 303.5,-280 303.5,-259 260.5,-259\" stroke=\"#000000\"/>\n",
-       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"278.5\" y=\"-265.8\">3</text>\n",
+       "<polygon fill=\"#00ffff\" points=\"222.5,-259 222.5,-280 265.5,-280 265.5,-259 222.5,-259\" stroke=\"transparent\"/>\n",
+       "<polygon fill=\"none\" points=\"222.5,-259 222.5,-280 265.5,-280 265.5,-259 222.5,-259\" stroke=\"#000000\"/>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"240.5\" y=\"-265.8\">2</text>\n",
+       "<polygon fill=\"#00ffff\" points=\"265.5,-259 265.5,-280 303.5,-280 303.5,-259 265.5,-259\" stroke=\"transparent\"/>\n",
+       "<polygon fill=\"none\" points=\"265.5,-259 265.5,-280 303.5,-280 303.5,-259 265.5,-259\" stroke=\"#000000\"/>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"281\" y=\"-265.8\">3</text>\n",
        "<polygon fill=\"#00ffff\" points=\"303.5,-259 303.5,-280 346.5,-280 346.5,-259 303.5,-259\" stroke=\"transparent\"/>\n",
        "<polygon fill=\"none\" points=\"303.5,-259 303.5,-280 346.5,-280 346.5,-259 303.5,-259\" stroke=\"#000000\"/>\n",
        "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"321.5\" y=\"-265.8\">4</text>\n",
@@ -324,19 +322,19 @@
        "<polygon fill=\"#00ffff\" points=\"431.5,-259 431.5,-280 474.5,-280 474.5,-259 431.5,-259\" stroke=\"transparent\"/>\n",
        "<polygon fill=\"none\" points=\"431.5,-259 431.5,-280 474.5,-280 474.5,-259 431.5,-259\" stroke=\"#000000\"/>\n",
        "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"449.5\" y=\"-265.8\">7</text>\n",
-       "<polygon fill=\"#00ffff\" points=\"474.5,-259 474.5,-280 517.5,-280 517.5,-259 474.5,-259\" stroke=\"transparent\"/>\n",
-       "<polygon fill=\"none\" points=\"474.5,-259 474.5,-280 517.5,-280 517.5,-259 474.5,-259\" stroke=\"#000000\"/>\n",
-       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"492.5\" y=\"-265.8\">8</text>\n",
-       "<polygon fill=\"none\" points=\"517.5,-259 517.5,-280 564.5,-280 564.5,-259 517.5,-259\" stroke=\"#000000\"/>\n",
-       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"537.5\" y=\"-265.8\">0</text>\n",
+       "<polygon fill=\"#00ffff\" points=\"474.5,-259 474.5,-280 521.5,-280 521.5,-259 474.5,-259\" stroke=\"transparent\"/>\n",
+       "<polygon fill=\"none\" points=\"474.5,-259 474.5,-280 521.5,-280 521.5,-259 474.5,-259\" stroke=\"#000000\"/>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"494.5\" y=\"-265.8\">8</text>\n",
+       "<polygon fill=\"none\" points=\"521.5,-259 521.5,-280 564.5,-280 564.5,-259 521.5,-259\" stroke=\"#000000\"/>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"539.5\" y=\"-265.8\">0</text>\n",
        "<polygon fill=\"none\" points=\"161.5,-238 161.5,-259 222.5,-259 222.5,-238 161.5,-238\" stroke=\"#000000\"/>\n",
        "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"184\" y=\"-244.8\">src</text>\n",
-       "<polygon fill=\"#ffff00\" points=\"222.5,-238 222.5,-259 260.5,-259 260.5,-238 222.5,-238\" stroke=\"transparent\"/>\n",
-       "<polygon fill=\"none\" points=\"222.5,-238 222.5,-259 260.5,-259 260.5,-238 222.5,-238\" stroke=\"#000000\"/>\n",
-       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"238\" y=\"-244.8\">0</text>\n",
-       "<polygon fill=\"#ffff00\" points=\"260.5,-238 260.5,-259 303.5,-259 303.5,-238 260.5,-238\" stroke=\"transparent\"/>\n",
-       "<polygon fill=\"none\" points=\"260.5,-238 260.5,-259 303.5,-259 303.5,-238 260.5,-238\" stroke=\"#000000\"/>\n",
-       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"278.5\" y=\"-244.8\">0</text>\n",
+       "<polygon fill=\"#ffff00\" points=\"222.5,-238 222.5,-259 265.5,-259 265.5,-238 222.5,-238\" stroke=\"transparent\"/>\n",
+       "<polygon fill=\"none\" points=\"222.5,-238 222.5,-259 265.5,-259 265.5,-238 222.5,-238\" stroke=\"#000000\"/>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"240.5\" y=\"-244.8\">0</text>\n",
+       "<polygon fill=\"#ffff00\" points=\"265.5,-238 265.5,-259 303.5,-259 303.5,-238 265.5,-238\" stroke=\"transparent\"/>\n",
+       "<polygon fill=\"none\" points=\"265.5,-238 265.5,-259 303.5,-259 303.5,-238 265.5,-238\" stroke=\"#000000\"/>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"281\" y=\"-244.8\">0</text>\n",
        "<polygon fill=\"#ffff00\" points=\"303.5,-238 303.5,-259 346.5,-259 346.5,-238 303.5,-238\" stroke=\"transparent\"/>\n",
        "<polygon fill=\"none\" points=\"303.5,-238 303.5,-259 346.5,-259 346.5,-238 303.5,-238\" stroke=\"#000000\"/>\n",
        "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"321.5\" y=\"-244.8\">0</text>\n",
@@ -349,12 +347,12 @@
        "<polygon fill=\"#ffff00\" points=\"431.5,-238 431.5,-259 474.5,-259 474.5,-238 431.5,-238\" stroke=\"transparent\"/>\n",
        "<polygon fill=\"none\" points=\"431.5,-238 431.5,-259 474.5,-259 474.5,-238 431.5,-238\" stroke=\"#000000\"/>\n",
        "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"449.5\" y=\"-244.8\">1</text>\n",
-       "<polygon fill=\"#ffff00\" points=\"474.5,-238 474.5,-259 517.5,-259 517.5,-238 474.5,-238\" stroke=\"transparent\"/>\n",
-       "<polygon fill=\"none\" points=\"474.5,-238 474.5,-259 517.5,-259 517.5,-238 474.5,-238\" stroke=\"#000000\"/>\n",
-       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"492.5\" y=\"-244.8\">1</text>\n",
-       "<polygon fill=\"#ffff00\" points=\"517.5,-238 517.5,-259 564.5,-259 564.5,-238 517.5,-238\" stroke=\"transparent\"/>\n",
-       "<polygon fill=\"none\" points=\"517.5,-238 517.5,-259 564.5,-259 564.5,-238 517.5,-238\" stroke=\"#000000\"/>\n",
-       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"537.5\" y=\"-244.8\">1</text>\n",
+       "<polygon fill=\"#ffff00\" points=\"474.5,-238 474.5,-259 521.5,-259 521.5,-238 474.5,-238\" stroke=\"transparent\"/>\n",
+       "<polygon fill=\"none\" points=\"474.5,-238 474.5,-259 521.5,-259 521.5,-238 474.5,-238\" stroke=\"#000000\"/>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"494.5\" y=\"-244.8\">1</text>\n",
+       "<polygon fill=\"#ffff00\" points=\"521.5,-238 521.5,-259 564.5,-259 564.5,-238 521.5,-238\" stroke=\"transparent\"/>\n",
+       "<polygon fill=\"none\" points=\"521.5,-238 521.5,-259 564.5,-259 564.5,-238 521.5,-238\" stroke=\"#000000\"/>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"539.5\" y=\"-244.8\">1</text>\n",
        "</g>\n",
        "<!-- meta -->\n",
        "<g class=\"node\" id=\"node3\">\n",
@@ -456,16 +454,16 @@
        "<!-- Generated by graphviz version 2.40.1 (20161225.0304)\n",
        " -->\n",
        "<!-- Pages: 1 -->\n",
-       "<svg width=\"279pt\" height=\"220pt\"\n",
-       " viewBox=\"0.00 0.00 278.50 219.60\" xmlns=\"http://www.w3.org/2000/svg\" xmlns:xlink=\"http://www.w3.org/1999/xlink\">\n",
-       "<g id=\"graph0\" class=\"graph\" transform=\"scale(1 1) rotate(0) translate(4 215.597)\">\n",
-       "<polygon fill=\"#ffffff\" stroke=\"transparent\" points=\"-4,4 -4,-215.597 274.5,-215.597 274.5,4 -4,4\"/>\n",
-       "<text text-anchor=\"start\" x=\"83.25\" y=\"-197.397\" font-family=\"Lato\" font-size=\"14.00\" fill=\"#000000\">Fin(</text>\n",
-       "<text text-anchor=\"start\" x=\"108.25\" y=\"-197.397\" font-family=\"Lato\" font-size=\"14.00\" fill=\"#1f78b4\">⓿</text>\n",
-       "<text text-anchor=\"start\" x=\"124.25\" y=\"-197.397\" font-family=\"Lato\" font-size=\"14.00\" fill=\"#000000\">) &amp; Inf(</text>\n",
-       "<text text-anchor=\"start\" x=\"167.25\" y=\"-197.397\" font-family=\"Lato\" font-size=\"14.00\" fill=\"#ff4da0\">❶</text>\n",
-       "<text text-anchor=\"start\" x=\"183.25\" y=\"-197.397\" font-family=\"Lato\" font-size=\"14.00\" fill=\"#000000\">)</text>\n",
-       "<text text-anchor=\"start\" x=\"106.25\" y=\"-183.397\" font-family=\"Lato\" font-size=\"14.00\" fill=\"#000000\">[Rabin 1]</text>\n",
+       "<svg width=\"279pt\" height=\"222pt\"\n",
+       " viewBox=\"0.00 0.00 278.50 221.60\" xmlns=\"http://www.w3.org/2000/svg\" xmlns:xlink=\"http://www.w3.org/1999/xlink\">\n",
+       "<g id=\"graph0\" class=\"graph\" transform=\"scale(1 1) rotate(0) translate(4 217.597)\">\n",
+       "<polygon fill=\"#ffffff\" stroke=\"transparent\" points=\"-4,4 -4,-217.597 274.5,-217.597 274.5,4 -4,4\"/>\n",
+       "<text text-anchor=\"start\" x=\"83.25\" y=\"-199.397\" font-family=\"Lato\" font-size=\"14.00\" fill=\"#000000\">Fin(</text>\n",
+       "<text text-anchor=\"start\" x=\"108.25\" y=\"-199.397\" font-family=\"Lato\" font-size=\"14.00\" fill=\"#1f78b4\">⓿</text>\n",
+       "<text text-anchor=\"start\" x=\"124.25\" y=\"-199.397\" font-family=\"Lato\" font-size=\"14.00\" fill=\"#000000\">) &amp; Inf(</text>\n",
+       "<text text-anchor=\"start\" x=\"167.25\" y=\"-199.397\" font-family=\"Lato\" font-size=\"14.00\" fill=\"#ff4da0\">❶</text>\n",
+       "<text text-anchor=\"start\" x=\"183.25\" y=\"-199.397\" font-family=\"Lato\" font-size=\"14.00\" fill=\"#000000\">)</text>\n",
+       "<text text-anchor=\"start\" x=\"106.25\" y=\"-185.397\" font-family=\"Lato\" font-size=\"14.00\" fill=\"#000000\">[Rabin 1]</text>\n",
        "<!-- I -->\n",
        "<!-- 2 -->\n",
        "<g id=\"node2\" class=\"node\">\n",
@@ -497,17 +495,16 @@
        "<title>0&#45;&gt;0</title>\n",
        "<path fill=\"none\" stroke=\"#000000\" d=\"M133.4047,-81.3787C132.7938,-90.9119 133.9922,-99.597 137,-99.597 139.2089,-99.597 140.4419,-94.913 140.6991,-88.6491\"/>\n",
        "<polygon fill=\"#000000\" stroke=\"#000000\" points=\"140.5953,-81.3787 143.845,-88.3329 140.6453,-84.8783 140.6954,-88.378 140.6954,-88.378 140.6954,-88.378 140.6453,-84.8783 137.5457,-88.423 140.5953,-81.3787 140.5953,-81.3787\"/>\n",
-       "<text text-anchor=\"start\" x=\"120\" y=\"-118.397\" font-family=\"Lato\" font-size=\"14.00\" fill=\"#000000\">a &amp; b</text>\n",
-       "<text text-anchor=\"start\" x=\"129\" y=\"-103.397\" font-family=\"Lato\" font-size=\"14.00\" fill=\"#ff4da0\">❶</text>\n",
+       "<text text-anchor=\"start\" x=\"118.5\" y=\"-118.397\" font-family=\"Lato\" font-size=\"14.00\" fill=\"#000000\">a &amp; !b</text>\n",
+       "<text text-anchor=\"start\" x=\"129\" y=\"-103.397\" font-family=\"Lato\" font-size=\"14.00\" fill=\"#1f78b4\">⓿</text>\n",
        "</g>\n",
        "<!-- 0&#45;&gt;0 -->\n",
        "<g id=\"edge3\" class=\"edge\">\n",
        "<title>0&#45;&gt;0</title>\n",
        "<path fill=\"none\" stroke=\"#000000\" d=\"M131.494,-80.846C127.5865,-102.0315 129.4219,-129.597 137,-129.597 143.7493,-129.597 145.9433,-107.7317 143.582,-87.982\"/>\n",
        "<polygon fill=\"#000000\" stroke=\"#000000\" points=\"142.506,-80.846 146.6646,-87.298 143.0279,-84.3069 143.5498,-87.7677 143.5498,-87.7677 143.5498,-87.7677 143.0279,-84.3069 140.435,-88.2375 142.506,-80.846 142.506,-80.846\"/>\n",
-       "<text text-anchor=\"start\" x=\"118.5\" y=\"-147.397\" font-family=\"Lato\" font-size=\"14.00\" fill=\"#000000\">a &amp; !b</text>\n",
-       "<text text-anchor=\"start\" x=\"121\" y=\"-133.397\" font-family=\"Lato\" font-size=\"14.00\" fill=\"#1f78b4\">⓿</text>\n",
-       "<text text-anchor=\"start\" x=\"137\" y=\"-133.397\" font-family=\"Lato\" font-size=\"14.00\" fill=\"#ff4da0\">❶</text>\n",
+       "<text text-anchor=\"start\" x=\"120\" y=\"-148.397\" font-family=\"Lato\" font-size=\"14.00\" fill=\"#000000\">a &amp; b</text>\n",
+       "<text text-anchor=\"start\" x=\"129\" y=\"-133.397\" font-family=\"Lato\" font-size=\"14.00\" fill=\"#ff4da0\">❶</text>\n",
        "</g>\n",
        "<!-- 1 -->\n",
        "<g id=\"node4\" class=\"node\">\n",
@@ -550,23 +547,22 @@
        "<title>1&#45;&gt;1</title>\n",
        "<path fill=\"none\" stroke=\"#000000\" d=\"M245.0012,-81.0069C244.0681,-90.6849 245.7344,-99.597 250,-99.597 253.1326,-99.597 254.8633,-94.7906 255.1921,-88.4042\"/>\n",
        "<polygon fill=\"#000000\" stroke=\"#000000\" points=\"254.9988,-81.0069 258.3307,-87.9221 255.0903,-84.5057 255.1818,-88.0045 255.1818,-88.0045 255.1818,-88.0045 255.0903,-84.5057 252.0329,-88.0868 254.9988,-81.0069 254.9988,-81.0069\"/>\n",
-       "<text text-anchor=\"start\" x=\"231.5\" y=\"-118.397\" font-family=\"Lato\" font-size=\"14.00\" fill=\"#000000\">!a &amp; b</text>\n",
-       "<text text-anchor=\"start\" x=\"242\" y=\"-103.397\" font-family=\"Lato\" font-size=\"14.00\" fill=\"#ff4da0\">❶</text>\n",
+       "<text text-anchor=\"start\" x=\"229.5\" y=\"-118.397\" font-family=\"Lato\" font-size=\"14.00\" fill=\"#000000\">!a &amp; !b</text>\n",
+       "<text text-anchor=\"start\" x=\"242\" y=\"-103.397\" font-family=\"Lato\" font-size=\"14.00\" fill=\"#1f78b4\">⓿</text>\n",
        "</g>\n",
        "<!-- 1&#45;&gt;1 -->\n",
        "<g id=\"edge9\" class=\"edge\">\n",
        "<title>1&#45;&gt;1</title>\n",
        "<path fill=\"none\" stroke=\"#000000\" d=\"M242.4634,-80.1928C236.769,-101.4602 239.2813,-129.597 250,-129.597 259.5883,-129.597 262.6098,-107.0823 259.0645,-87.1101\"/>\n",
        "<polygon fill=\"#000000\" stroke=\"#000000\" points=\"257.5366,-80.1928 262.1223,-86.3487 258.2915,-83.6105 259.0464,-87.0281 259.0464,-87.0281 259.0464,-87.0281 258.2915,-83.6105 255.9706,-87.7075 257.5366,-80.1928 257.5366,-80.1928\"/>\n",
-       "<text text-anchor=\"start\" x=\"229.5\" y=\"-147.397\" font-family=\"Lato\" font-size=\"14.00\" fill=\"#000000\">!a &amp; !b</text>\n",
-       "<text text-anchor=\"start\" x=\"234\" y=\"-133.397\" font-family=\"Lato\" font-size=\"14.00\" fill=\"#1f78b4\">⓿</text>\n",
-       "<text text-anchor=\"start\" x=\"250\" y=\"-133.397\" font-family=\"Lato\" font-size=\"14.00\" fill=\"#ff4da0\">❶</text>\n",
+       "<text text-anchor=\"start\" x=\"231.5\" y=\"-148.397\" font-family=\"Lato\" font-size=\"14.00\" fill=\"#000000\">!a &amp; b</text>\n",
+       "<text text-anchor=\"start\" x=\"242\" y=\"-133.397\" font-family=\"Lato\" font-size=\"14.00\" fill=\"#ff4da0\">❶</text>\n",
        "</g>\n",
        "</g>\n",
        "</svg>\n"
       ],
       "text/plain": [
-       "<spot.twa_graph; proxy of <Swig Object of type 'std::shared_ptr< spot::twa_graph > *' at 0x7f616c1788a0> >"
+       "<spot.twa_graph; proxy of <Swig Object of type 'std::shared_ptr< spot::twa_graph > *' at 0x7f2950267b40> >"
       ]
      },
      "metadata": {},
@@ -623,12 +619,12 @@
        "<polygon fill=\"#00ffff\" points=\"137,-109 137,-130 198,-130 198,-109 137,-109\" stroke=\"transparent\"/>\n",
        "<polyline fill=\"none\" points=\"137,-109 198,-109 \" stroke=\"#000000\"/>\n",
        "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"152\" y=\"-115.8\">edges</text>\n",
-       "<polygon fill=\"#00ffff\" points=\"198,-109 198,-130 236,-130 236,-109 198,-109\" stroke=\"transparent\"/>\n",
-       "<polyline fill=\"none\" points=\"198,-109 236,-109 \" stroke=\"#000000\"/>\n",
-       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"213.5\" y=\"-115.8\">1</text>\n",
-       "<polygon fill=\"#00ffff\" points=\"236,-109 236,-130 279,-130 279,-109 236,-109\" stroke=\"transparent\"/>\n",
-       "<polyline fill=\"none\" points=\"236,-109 279,-109 \" stroke=\"#000000\"/>\n",
-       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"254\" y=\"-115.8\">2</text>\n",
+       "<polygon fill=\"#00ffff\" points=\"198,-109 198,-130 241,-130 241,-109 198,-109\" stroke=\"transparent\"/>\n",
+       "<polyline fill=\"none\" points=\"198,-109 241,-109 \" stroke=\"#000000\"/>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"216\" y=\"-115.8\">1</text>\n",
+       "<polygon fill=\"#00ffff\" points=\"241,-109 241,-130 279,-130 279,-109 241,-109\" stroke=\"transparent\"/>\n",
+       "<polyline fill=\"none\" points=\"241,-109 279,-109 \" stroke=\"#000000\"/>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"256.5\" y=\"-115.8\">2</text>\n",
        "<polygon fill=\"#00ffff\" points=\"279,-109 279,-130 322,-130 322,-109 279,-109\" stroke=\"transparent\"/>\n",
        "<polyline fill=\"none\" points=\"279,-109 322,-109 \" stroke=\"#000000\"/>\n",
        "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"297\" y=\"-115.8\">3</text>\n",
@@ -641,21 +637,21 @@
        "<polygon fill=\"#00ffff\" points=\"407,-109 407,-130 450,-130 450,-109 407,-109\" stroke=\"transparent\"/>\n",
        "<polyline fill=\"none\" points=\"407,-109 450,-109 \" stroke=\"#000000\"/>\n",
        "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"425\" y=\"-115.8\">6</text>\n",
-       "<polygon fill=\"#00ffff\" points=\"450,-109 450,-130 493,-130 493,-109 450,-109\" stroke=\"transparent\"/>\n",
-       "<polyline fill=\"none\" points=\"450,-109 493,-109 \" stroke=\"#000000\"/>\n",
-       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"468\" y=\"-115.8\">7</text>\n",
-       "<polygon fill=\"#00ffff\" points=\"493,-109 493,-130 540,-130 540,-109 493,-109\" stroke=\"transparent\"/>\n",
-       "<polyline fill=\"none\" points=\"493,-109 540,-109 \" stroke=\"#000000\"/>\n",
-       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"513\" y=\"-115.8\">8</text>\n",
+       "<polygon fill=\"#00ffff\" points=\"450,-109 450,-130 497,-130 497,-109 450,-109\" stroke=\"transparent\"/>\n",
+       "<polyline fill=\"none\" points=\"450,-109 497,-109 \" stroke=\"#000000\"/>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"470\" y=\"-115.8\">7</text>\n",
+       "<polygon fill=\"#00ffff\" points=\"497,-109 497,-130 540,-130 540,-109 497,-109\" stroke=\"transparent\"/>\n",
+       "<polyline fill=\"none\" points=\"497,-109 540,-109 \" stroke=\"#000000\"/>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"515\" y=\"-115.8\">8</text>\n",
        "<polygon fill=\"#00ffff\" points=\"540,-109 540,-130 560,-130 560,-109 540,-109\" stroke=\"transparent\"/>\n",
        "<polyline fill=\"none\" points=\"540,-109 560,-109 \" stroke=\"#000000\"/>\n",
        "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"546.5\" y=\"-115.8\">9</text>\n",
        "<polygon fill=\"none\" points=\"137,-88 137,-109 198,-109 198,-88 137,-88\" stroke=\"#000000\"/>\n",
        "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"154\" y=\"-94.8\">cond</text>\n",
-       "<polygon fill=\"none\" points=\"198,-88 198,-109 236,-109 236,-88 198,-88\" stroke=\"#000000\"/>\n",
-       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"201\" y=\"-94.8\">a &amp; b</text>\n",
-       "<polygon fill=\"none\" points=\"236,-88 236,-109 279,-109 279,-88 236,-88\" stroke=\"#000000\"/>\n",
-       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"239\" y=\"-94.8\">a &amp; !b</text>\n",
+       "<polygon fill=\"none\" points=\"198,-88 198,-109 241,-109 241,-88 198,-88\" stroke=\"#000000\"/>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"201\" y=\"-94.8\">a &amp; !b</text>\n",
+       "<polygon fill=\"none\" points=\"241,-88 241,-109 279,-109 279,-88 241,-88\" stroke=\"#000000\"/>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"244\" y=\"-94.8\">a &amp; b</text>\n",
        "<polygon fill=\"none\" points=\"279,-88 279,-109 322,-109 322,-88 279,-88\" stroke=\"#000000\"/>\n",
        "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"282\" y=\"-94.8\">!a &amp; b</text>\n",
        "<polygon fill=\"none\" points=\"322,-88 322,-109 369,-109 369,-88 322,-88\" stroke=\"#000000\"/>\n",
@@ -664,18 +660,18 @@
        "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"372\" y=\"-94.8\">a &amp; b</text>\n",
        "<polygon fill=\"none\" points=\"407,-88 407,-109 450,-109 450,-88 407,-88\" stroke=\"#000000\"/>\n",
        "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"410\" y=\"-94.8\">a &amp; !b</text>\n",
-       "<polygon fill=\"none\" points=\"450,-88 450,-109 493,-109 493,-88 450,-88\" stroke=\"#000000\"/>\n",
-       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"453\" y=\"-94.8\">!a &amp; b</text>\n",
-       "<polygon fill=\"none\" points=\"493,-88 493,-109 540,-109 540,-88 493,-88\" stroke=\"#000000\"/>\n",
-       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"496\" y=\"-94.8\">!a &amp; !b</text>\n",
+       "<polygon fill=\"none\" points=\"450,-88 450,-109 497,-109 497,-88 450,-88\" stroke=\"#000000\"/>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"453\" y=\"-94.8\">!a &amp; !b</text>\n",
+       "<polygon fill=\"none\" points=\"497,-88 497,-109 540,-109 540,-88 497,-88\" stroke=\"#000000\"/>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"500\" y=\"-94.8\">!a &amp; b</text>\n",
        "<polygon fill=\"none\" points=\"540,-88 540,-109 560,-109 560,-88 540,-88\" stroke=\"#000000\"/>\n",
        "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"546.5\" y=\"-94.8\">1</text>\n",
        "<polygon fill=\"none\" points=\"137,-67 137,-88 198,-88 198,-67 137,-67\" stroke=\"#000000\"/>\n",
        "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"158\" y=\"-73.8\">acc</text>\n",
-       "<polygon fill=\"none\" points=\"198,-67 198,-88 236,-88 236,-67 198,-67\" stroke=\"#000000\"/>\n",
-       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"206.5\" y=\"-73.8\">{1}</text>\n",
-       "<polygon fill=\"none\" points=\"236,-67 236,-88 279,-88 279,-67 236,-67\" stroke=\"#000000\"/>\n",
-       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"242\" y=\"-73.8\">{0,1}</text>\n",
+       "<polygon fill=\"none\" points=\"198,-67 198,-88 241,-88 241,-67 198,-67\" stroke=\"#000000\"/>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"209\" y=\"-73.8\">{0}</text>\n",
+       "<polygon fill=\"none\" points=\"241,-67 241,-88 279,-88 279,-67 241,-67\" stroke=\"#000000\"/>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"249.5\" y=\"-73.8\">{1}</text>\n",
        "<polygon fill=\"none\" points=\"279,-67 279,-88 322,-88 322,-67 279,-67\" stroke=\"#000000\"/>\n",
        "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"293.5\" y=\"-73.8\">{}</text>\n",
        "<polygon fill=\"none\" points=\"322,-67 322,-88 369,-88 369,-67 322,-67\" stroke=\"#000000\"/>\n",
@@ -684,20 +680,20 @@
        "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"381\" y=\"-73.8\">{}</text>\n",
        "<polygon fill=\"none\" points=\"407,-67 407,-88 450,-88 450,-67 407,-67\" stroke=\"#000000\"/>\n",
        "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"418\" y=\"-73.8\">{0}</text>\n",
-       "<polygon fill=\"none\" points=\"450,-67 450,-88 493,-88 493,-67 450,-67\" stroke=\"#000000\"/>\n",
-       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"461\" y=\"-73.8\">{1}</text>\n",
-       "<polygon fill=\"none\" points=\"493,-67 493,-88 540,-88 540,-67 493,-67\" stroke=\"#000000\"/>\n",
-       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"501\" y=\"-73.8\">{0,1}</text>\n",
+       "<polygon fill=\"none\" points=\"450,-67 450,-88 497,-88 497,-67 450,-67\" stroke=\"#000000\"/>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"463\" y=\"-73.8\">{0}</text>\n",
+       "<polygon fill=\"none\" points=\"497,-67 497,-88 540,-88 540,-67 497,-67\" stroke=\"#000000\"/>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"508\" y=\"-73.8\">{1}</text>\n",
        "<polygon fill=\"none\" points=\"540,-67 540,-88 560,-88 560,-67 540,-67\" stroke=\"#000000\"/>\n",
        "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"543\" y=\"-73.8\">{}</text>\n",
        "<polygon fill=\"none\" points=\"137,-46 137,-67 198,-67 198,-46 137,-46\" stroke=\"#000000\"/>\n",
        "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"159.5\" y=\"-52.8\">dst</text>\n",
-       "<polygon fill=\"#ffff00\" points=\"198,-46 198,-67 236,-67 236,-46 198,-46\" stroke=\"transparent\"/>\n",
-       "<polygon fill=\"none\" points=\"198,-46 198,-67 236,-67 236,-46 198,-46\" stroke=\"#000000\"/>\n",
-       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"213.5\" y=\"-52.8\">0</text>\n",
-       "<polygon fill=\"#ffff00\" points=\"236,-46 236,-67 279,-67 279,-46 236,-46\" stroke=\"transparent\"/>\n",
-       "<polygon fill=\"none\" points=\"236,-46 236,-67 279,-67 279,-46 236,-46\" stroke=\"#000000\"/>\n",
-       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"254\" y=\"-52.8\">0</text>\n",
+       "<polygon fill=\"#ffff00\" points=\"198,-46 198,-67 241,-67 241,-46 198,-46\" stroke=\"transparent\"/>\n",
+       "<polygon fill=\"none\" points=\"198,-46 198,-67 241,-67 241,-46 198,-46\" stroke=\"#000000\"/>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"216\" y=\"-52.8\">0</text>\n",
+       "<polygon fill=\"#ffff00\" points=\"241,-46 241,-67 279,-67 279,-46 241,-46\" stroke=\"transparent\"/>\n",
+       "<polygon fill=\"none\" points=\"241,-46 241,-67 279,-67 279,-46 241,-46\" stroke=\"#000000\"/>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"256.5\" y=\"-52.8\">0</text>\n",
        "<polygon fill=\"#ffff00\" points=\"279,-46 279,-67 322,-67 322,-46 279,-46\" stroke=\"transparent\"/>\n",
        "<polygon fill=\"none\" points=\"279,-46 279,-67 322,-67 322,-46 279,-46\" stroke=\"#000000\"/>\n",
        "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"297\" y=\"-52.8\">1</text>\n",
@@ -710,23 +706,23 @@
        "<polygon fill=\"#ffff00\" points=\"407,-46 407,-67 450,-67 450,-46 407,-46\" stroke=\"transparent\"/>\n",
        "<polygon fill=\"none\" points=\"407,-46 407,-67 450,-67 450,-46 407,-46\" stroke=\"#000000\"/>\n",
        "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"425\" y=\"-52.8\">0</text>\n",
-       "<polygon fill=\"#ffff00\" points=\"450,-46 450,-67 493,-67 493,-46 450,-46\" stroke=\"transparent\"/>\n",
-       "<polygon fill=\"none\" points=\"450,-46 450,-67 493,-67 493,-46 450,-46\" stroke=\"#000000\"/>\n",
-       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"468\" y=\"-52.8\">1</text>\n",
-       "<polygon fill=\"#ffff00\" points=\"493,-46 493,-67 540,-67 540,-46 493,-46\" stroke=\"transparent\"/>\n",
-       "<polygon fill=\"none\" points=\"493,-46 493,-67 540,-67 540,-46 493,-46\" stroke=\"#000000\"/>\n",
-       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"513\" y=\"-52.8\">1</text>\n",
+       "<polygon fill=\"#ffff00\" points=\"450,-46 450,-67 497,-67 497,-46 450,-46\" stroke=\"transparent\"/>\n",
+       "<polygon fill=\"none\" points=\"450,-46 450,-67 497,-67 497,-46 450,-46\" stroke=\"#000000\"/>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"470\" y=\"-52.8\">1</text>\n",
+       "<polygon fill=\"#ffff00\" points=\"497,-46 497,-67 540,-67 540,-46 497,-46\" stroke=\"transparent\"/>\n",
+       "<polygon fill=\"none\" points=\"497,-46 497,-67 540,-67 540,-46 497,-46\" stroke=\"#000000\"/>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"515\" y=\"-52.8\">1</text>\n",
        "<polygon fill=\"#ffff00\" points=\"540,-46 540,-67 560,-67 560,-46 540,-46\" stroke=\"transparent\"/>\n",
        "<polygon fill=\"none\" points=\"540,-46 540,-67 560,-67 560,-46 540,-46\" stroke=\"#000000\"/>\n",
        "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"546.5\" y=\"-52.8\">0</text>\n",
        "<polygon fill=\"none\" points=\"137,-25 137,-46 198,-46 198,-25 137,-25\" stroke=\"#000000\"/>\n",
        "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"140\" y=\"-31.8\">next_succ</text>\n",
-       "<polygon fill=\"#00ffff\" points=\"198,-25 198,-46 236,-46 236,-25 198,-25\" stroke=\"transparent\"/>\n",
-       "<polygon fill=\"none\" points=\"198,-25 198,-46 236,-46 236,-25 198,-25\" stroke=\"#000000\"/>\n",
-       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"213.5\" y=\"-31.8\">2</text>\n",
-       "<polygon fill=\"#00ffff\" points=\"236,-25 236,-46 279,-46 279,-25 236,-25\" stroke=\"transparent\"/>\n",
-       "<polygon fill=\"none\" points=\"236,-25 236,-46 279,-46 279,-25 236,-25\" stroke=\"#000000\"/>\n",
-       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"254\" y=\"-31.8\">3</text>\n",
+       "<polygon fill=\"#00ffff\" points=\"198,-25 198,-46 241,-46 241,-25 198,-25\" stroke=\"transparent\"/>\n",
+       "<polygon fill=\"none\" points=\"198,-25 198,-46 241,-46 241,-25 198,-25\" stroke=\"#000000\"/>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"216\" y=\"-31.8\">2</text>\n",
+       "<polygon fill=\"#00ffff\" points=\"241,-25 241,-46 279,-46 279,-25 241,-25\" stroke=\"transparent\"/>\n",
+       "<polygon fill=\"none\" points=\"241,-25 241,-46 279,-46 279,-25 241,-25\" stroke=\"#000000\"/>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"256.5\" y=\"-31.8\">3</text>\n",
        "<polygon fill=\"#00ffff\" points=\"279,-25 279,-46 322,-46 322,-25 279,-25\" stroke=\"transparent\"/>\n",
        "<polygon fill=\"none\" points=\"279,-25 279,-46 322,-46 322,-25 279,-25\" stroke=\"#000000\"/>\n",
        "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"297\" y=\"-31.8\">4</text>\n",
@@ -738,21 +734,21 @@
        "<polygon fill=\"#00ffff\" points=\"407,-25 407,-46 450,-46 450,-25 407,-25\" stroke=\"transparent\"/>\n",
        "<polygon fill=\"none\" points=\"407,-25 407,-46 450,-46 450,-25 407,-25\" stroke=\"#000000\"/>\n",
        "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"425\" y=\"-31.8\">7</text>\n",
-       "<polygon fill=\"#00ffff\" points=\"450,-25 450,-46 493,-46 493,-25 450,-25\" stroke=\"transparent\"/>\n",
-       "<polygon fill=\"none\" points=\"450,-25 450,-46 493,-46 493,-25 450,-25\" stroke=\"#000000\"/>\n",
-       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"468\" y=\"-31.8\">8</text>\n",
-       "<polygon fill=\"none\" points=\"493,-25 493,-46 540,-46 540,-25 493,-25\" stroke=\"#000000\"/>\n",
-       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"513\" y=\"-31.8\">0</text>\n",
+       "<polygon fill=\"#00ffff\" points=\"450,-25 450,-46 497,-46 497,-25 450,-25\" stroke=\"transparent\"/>\n",
+       "<polygon fill=\"none\" points=\"450,-25 450,-46 497,-46 497,-25 450,-25\" stroke=\"#000000\"/>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"470\" y=\"-31.8\">8</text>\n",
+       "<polygon fill=\"none\" points=\"497,-25 497,-46 540,-46 540,-25 497,-25\" stroke=\"#000000\"/>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"515\" y=\"-31.8\">0</text>\n",
        "<polygon fill=\"none\" points=\"540,-25 540,-46 560,-46 560,-25 540,-25\" stroke=\"#000000\"/>\n",
        "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"546.5\" y=\"-31.8\">0</text>\n",
        "<polygon fill=\"none\" points=\"137,-4 137,-25 198,-25 198,-4 137,-4\" stroke=\"#000000\"/>\n",
        "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"159.5\" y=\"-10.8\">src</text>\n",
-       "<polygon fill=\"#ffff00\" points=\"198,-4 198,-25 236,-25 236,-4 198,-4\" stroke=\"transparent\"/>\n",
-       "<polygon fill=\"none\" points=\"198,-4 198,-25 236,-25 236,-4 198,-4\" stroke=\"#000000\"/>\n",
-       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"213.5\" y=\"-10.8\">0</text>\n",
-       "<polygon fill=\"#ffff00\" points=\"236,-4 236,-25 279,-25 279,-4 236,-4\" stroke=\"transparent\"/>\n",
-       "<polygon fill=\"none\" points=\"236,-4 236,-25 279,-25 279,-4 236,-4\" stroke=\"#000000\"/>\n",
-       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"254\" y=\"-10.8\">0</text>\n",
+       "<polygon fill=\"#ffff00\" points=\"198,-4 198,-25 241,-25 241,-4 198,-4\" stroke=\"transparent\"/>\n",
+       "<polygon fill=\"none\" points=\"198,-4 198,-25 241,-25 241,-4 198,-4\" stroke=\"#000000\"/>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"216\" y=\"-10.8\">0</text>\n",
+       "<polygon fill=\"#ffff00\" points=\"241,-4 241,-25 279,-25 279,-4 241,-4\" stroke=\"transparent\"/>\n",
+       "<polygon fill=\"none\" points=\"241,-4 241,-25 279,-25 279,-4 241,-4\" stroke=\"#000000\"/>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"256.5\" y=\"-10.8\">0</text>\n",
        "<polygon fill=\"#ffff00\" points=\"279,-4 279,-25 322,-25 322,-4 279,-4\" stroke=\"transparent\"/>\n",
        "<polygon fill=\"none\" points=\"279,-4 279,-25 322,-25 322,-4 279,-4\" stroke=\"#000000\"/>\n",
        "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"297\" y=\"-10.8\">0</text>\n",
@@ -765,12 +761,12 @@
        "<polygon fill=\"#ffff00\" points=\"407,-4 407,-25 450,-25 450,-4 407,-4\" stroke=\"transparent\"/>\n",
        "<polygon fill=\"none\" points=\"407,-4 407,-25 450,-25 450,-4 407,-4\" stroke=\"#000000\"/>\n",
        "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"425\" y=\"-10.8\">1</text>\n",
-       "<polygon fill=\"#ffff00\" points=\"450,-4 450,-25 493,-25 493,-4 450,-4\" stroke=\"transparent\"/>\n",
-       "<polygon fill=\"none\" points=\"450,-4 450,-25 493,-25 493,-4 450,-4\" stroke=\"#000000\"/>\n",
-       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"468\" y=\"-10.8\">1</text>\n",
-       "<polygon fill=\"#ffff00\" points=\"493,-4 493,-25 540,-25 540,-4 493,-4\" stroke=\"transparent\"/>\n",
-       "<polygon fill=\"none\" points=\"493,-4 493,-25 540,-25 540,-4 493,-4\" stroke=\"#000000\"/>\n",
-       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"513\" y=\"-10.8\">1</text>\n",
+       "<polygon fill=\"#ffff00\" points=\"450,-4 450,-25 497,-25 497,-4 450,-4\" stroke=\"transparent\"/>\n",
+       "<polygon fill=\"none\" points=\"450,-4 450,-25 497,-25 497,-4 450,-4\" stroke=\"#000000\"/>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"470\" y=\"-10.8\">1</text>\n",
+       "<polygon fill=\"#ffff00\" points=\"497,-4 497,-25 540,-25 540,-4 497,-4\" stroke=\"transparent\"/>\n",
+       "<polygon fill=\"none\" points=\"497,-4 497,-25 540,-25 540,-4 497,-4\" stroke=\"#000000\"/>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"515\" y=\"-10.8\">1</text>\n",
        "<polygon fill=\"#ffff00\" points=\"540,-4 540,-25 560,-25 560,-4 540,-4\" stroke=\"transparent\"/>\n",
        "<polygon fill=\"none\" points=\"540,-4 540,-25 560,-25 560,-4 540,-4\" stroke=\"#000000\"/>\n",
        "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"546.5\" y=\"-10.8\">2</text>\n",
@@ -844,16 +840,16 @@
        "<!-- Generated by graphviz version 2.40.1 (20161225.0304)\n",
        " -->\n",
        "<!-- Pages: 1 -->\n",
-       "<svg width=\"279pt\" height=\"247pt\"\n",
-       " viewBox=\"0.00 0.00 278.50 247.40\" xmlns=\"http://www.w3.org/2000/svg\" xmlns:xlink=\"http://www.w3.org/1999/xlink\">\n",
-       "<g id=\"graph0\" class=\"graph\" transform=\"scale(1 1) rotate(0) translate(4 243.4001)\">\n",
-       "<polygon fill=\"#ffffff\" stroke=\"transparent\" points=\"-4,4 -4,-243.4001 274.5,-243.4001 274.5,4 -4,4\"/>\n",
-       "<text text-anchor=\"start\" x=\"83.25\" y=\"-225.2001\" font-family=\"Lato\" font-size=\"14.00\" fill=\"#000000\">Fin(</text>\n",
-       "<text text-anchor=\"start\" x=\"108.25\" y=\"-225.2001\" font-family=\"Lato\" font-size=\"14.00\" fill=\"#1f78b4\">⓿</text>\n",
-       "<text text-anchor=\"start\" x=\"124.25\" y=\"-225.2001\" font-family=\"Lato\" font-size=\"14.00\" fill=\"#000000\">) &amp; Inf(</text>\n",
-       "<text text-anchor=\"start\" x=\"167.25\" y=\"-225.2001\" font-family=\"Lato\" font-size=\"14.00\" fill=\"#ff4da0\">❶</text>\n",
-       "<text text-anchor=\"start\" x=\"183.25\" y=\"-225.2001\" font-family=\"Lato\" font-size=\"14.00\" fill=\"#000000\">)</text>\n",
-       "<text text-anchor=\"start\" x=\"106.25\" y=\"-211.2001\" font-family=\"Lato\" font-size=\"14.00\" fill=\"#000000\">[Rabin 1]</text>\n",
+       "<svg width=\"279pt\" height=\"249pt\"\n",
+       " viewBox=\"0.00 0.00 278.50 249.40\" xmlns=\"http://www.w3.org/2000/svg\" xmlns:xlink=\"http://www.w3.org/1999/xlink\">\n",
+       "<g id=\"graph0\" class=\"graph\" transform=\"scale(1 1) rotate(0) translate(4 245.4001)\">\n",
+       "<polygon fill=\"#ffffff\" stroke=\"transparent\" points=\"-4,4 -4,-245.4001 274.5,-245.4001 274.5,4 -4,4\"/>\n",
+       "<text text-anchor=\"start\" x=\"83.25\" y=\"-227.2001\" font-family=\"Lato\" font-size=\"14.00\" fill=\"#000000\">Fin(</text>\n",
+       "<text text-anchor=\"start\" x=\"108.25\" y=\"-227.2001\" font-family=\"Lato\" font-size=\"14.00\" fill=\"#1f78b4\">⓿</text>\n",
+       "<text text-anchor=\"start\" x=\"124.25\" y=\"-227.2001\" font-family=\"Lato\" font-size=\"14.00\" fill=\"#000000\">) &amp; Inf(</text>\n",
+       "<text text-anchor=\"start\" x=\"167.25\" y=\"-227.2001\" font-family=\"Lato\" font-size=\"14.00\" fill=\"#ff4da0\">❶</text>\n",
+       "<text text-anchor=\"start\" x=\"183.25\" y=\"-227.2001\" font-family=\"Lato\" font-size=\"14.00\" fill=\"#000000\">)</text>\n",
+       "<text text-anchor=\"start\" x=\"106.25\" y=\"-213.2001\" font-family=\"Lato\" font-size=\"14.00\" fill=\"#000000\">[Rabin 1]</text>\n",
        "<!-- I -->\n",
        "<!-- 2 -->\n",
        "<g id=\"node2\" class=\"node\">\n",
@@ -885,25 +881,24 @@
        "<title>0&#45;&gt;0</title>\n",
        "<path fill=\"none\" stroke=\"#000000\" d=\"M134.5879,-61.5528C134.2168,-70.9392 135.0208,-79.4001 137,-79.4001 138.4535,-79.4001 139.2731,-74.8371 139.4591,-68.6955\"/>\n",
        "<polygon fill=\"#000000\" stroke=\"#000000\" points=\"139.4121,-61.5528 142.6082,-68.5319 139.4352,-65.0527 139.4582,-68.5527 139.4582,-68.5527 139.4582,-68.5527 139.4352,-65.0527 136.3083,-68.5734 139.4121,-61.5528 139.4121,-61.5528\"/>\n",
-       "<text text-anchor=\"start\" x=\"120\" y=\"-98.2001\" font-family=\"Lato\" font-size=\"14.00\" fill=\"#000000\">a &amp; b</text>\n",
-       "<text text-anchor=\"start\" x=\"129\" y=\"-83.2001\" font-family=\"Lato\" font-size=\"14.00\" fill=\"#ff4da0\">❶</text>\n",
+       "<text text-anchor=\"start\" x=\"118.5\" y=\"-98.2001\" font-family=\"Lato\" font-size=\"14.00\" fill=\"#000000\">a &amp; !b</text>\n",
+       "<text text-anchor=\"start\" x=\"129\" y=\"-83.2001\" font-family=\"Lato\" font-size=\"14.00\" fill=\"#1f78b4\">⓿</text>\n",
        "</g>\n",
        "<!-- 0&#45;&gt;0 -->\n",
        "<g id=\"edge3\" class=\"edge\">\n",
        "<title>0&#45;&gt;0</title>\n",
        "<path fill=\"none\" stroke=\"#000000\" d=\"M133.25,-61.3064C130.75,-82.4001 132,-109.4001 137,-109.4001 141.4531,-109.4001 142.9317,-87.9834 141.4357,-68.3967\"/>\n",
        "<polygon fill=\"#000000\" stroke=\"#000000\" points=\"140.75,-61.3064 144.5593,-67.9706 141.087,-64.7901 141.4239,-68.2739 141.4239,-68.2739 141.4239,-68.2739 141.087,-64.7901 138.2886,-68.5771 140.75,-61.3064 140.75,-61.3064\"/>\n",
-       "<text text-anchor=\"start\" x=\"118.5\" y=\"-127.2001\" font-family=\"Lato\" font-size=\"14.00\" fill=\"#000000\">a &amp; !b</text>\n",
-       "<text text-anchor=\"start\" x=\"121\" y=\"-113.2001\" font-family=\"Lato\" font-size=\"14.00\" fill=\"#1f78b4\">⓿</text>\n",
-       "<text text-anchor=\"start\" x=\"137\" y=\"-113.2001\" font-family=\"Lato\" font-size=\"14.00\" fill=\"#ff4da0\">❶</text>\n",
+       "<text text-anchor=\"start\" x=\"120\" y=\"-128.2001\" font-family=\"Lato\" font-size=\"14.00\" fill=\"#000000\">a &amp; b</text>\n",
+       "<text text-anchor=\"start\" x=\"129\" y=\"-113.2001\" font-family=\"Lato\" font-size=\"14.00\" fill=\"#ff4da0\">❶</text>\n",
        "</g>\n",
        "<!-- 0&#45;&gt;0 -->\n",
        "<g id=\"edge4\" class=\"edge\">\n",
        "<title>0&#45;&gt;0</title>\n",
-       "<path fill=\"none\" stroke=\"#000000\" d=\"M132.4297,-60.987C127.3516,-91.1892 128.875,-137.4001 137,-137.4001 144.522,-137.4001 146.3859,-97.7941 142.5919,-67.9508\"/>\n",
-       "<polygon fill=\"#000000\" stroke=\"#000000\" points=\"141.5703,-60.987 145.7031,-67.4557 142.0784,-64.45 142.5864,-67.9129 142.5864,-67.9129 142.5864,-67.9129 142.0784,-64.45 139.4698,-68.3701 141.5703,-60.987 141.5703,-60.987\"/>\n",
-       "<text text-anchor=\"start\" x=\"118.5\" y=\"-156.2001\" font-family=\"Lato\" font-size=\"14.00\" fill=\"#000000\">!a &amp; b</text>\n",
-       "<text text-anchor=\"start\" x=\"129\" y=\"-141.2001\" font-family=\"Lato\" font-size=\"14.00\" fill=\"#ff4da0\">❶</text>\n",
+       "<path fill=\"none\" stroke=\"#000000\" d=\"M132.4297,-61.1716C127.3516,-91.8689 128.875,-139.4001 137,-139.4001 144.522,-139.4001 146.3859,-98.6625 142.5919,-68.2584\"/>\n",
+       "<polygon fill=\"#000000\" stroke=\"#000000\" points=\"141.5703,-61.1716 145.6869,-67.6505 142.0697,-64.6358 142.5691,-68.1 142.5691,-68.1 142.5691,-68.1 142.0697,-64.6358 139.4514,-68.5495 141.5703,-61.1716 141.5703,-61.1716\"/>\n",
+       "<text text-anchor=\"start\" x=\"118.5\" y=\"-158.2001\" font-family=\"Lato\" font-size=\"14.00\" fill=\"#000000\">!a &amp; b</text>\n",
+       "<text text-anchor=\"start\" x=\"129\" y=\"-143.2001\" font-family=\"Lato\" font-size=\"14.00\" fill=\"#ff4da0\">❶</text>\n",
        "</g>\n",
        "<!-- 1 -->\n",
        "<g id=\"node4\" class=\"node\">\n",
@@ -939,23 +934,22 @@
        "<title>1&#45;&gt;1</title>\n",
        "<path fill=\"none\" stroke=\"#000000\" d=\"M245.0012,-60.81C244.0681,-70.488 245.7344,-79.4001 250,-79.4001 253.1326,-79.4001 254.8633,-74.5937 255.1921,-68.2074\"/>\n",
        "<polygon fill=\"#000000\" stroke=\"#000000\" points=\"254.9988,-60.81 258.3307,-67.7253 255.0903,-64.3088 255.1818,-67.8076 255.1818,-67.8076 255.1818,-67.8076 255.0903,-64.3088 252.0329,-67.89 254.9988,-60.81 254.9988,-60.81\"/>\n",
-       "<text text-anchor=\"start\" x=\"231.5\" y=\"-98.2001\" font-family=\"Lato\" font-size=\"14.00\" fill=\"#000000\">!a &amp; b</text>\n",
-       "<text text-anchor=\"start\" x=\"242\" y=\"-83.2001\" font-family=\"Lato\" font-size=\"14.00\" fill=\"#ff4da0\">❶</text>\n",
+       "<text text-anchor=\"start\" x=\"229.5\" y=\"-98.2001\" font-family=\"Lato\" font-size=\"14.00\" fill=\"#000000\">!a &amp; !b</text>\n",
+       "<text text-anchor=\"start\" x=\"242\" y=\"-83.2001\" font-family=\"Lato\" font-size=\"14.00\" fill=\"#1f78b4\">⓿</text>\n",
        "</g>\n",
        "<!-- 1&#45;&gt;1 -->\n",
        "<g id=\"edge9\" class=\"edge\">\n",
        "<title>1&#45;&gt;1</title>\n",
        "<path fill=\"none\" stroke=\"#000000\" d=\"M242.4634,-59.996C236.769,-81.2634 239.2813,-109.4001 250,-109.4001 259.5883,-109.4001 262.6098,-86.8855 259.0645,-66.9133\"/>\n",
        "<polygon fill=\"#000000\" stroke=\"#000000\" points=\"257.5366,-59.996 262.1223,-66.1518 258.2915,-63.4136 259.0464,-66.8312 259.0464,-66.8312 259.0464,-66.8312 258.2915,-63.4136 255.9706,-67.5107 257.5366,-59.996 257.5366,-59.996\"/>\n",
-       "<text text-anchor=\"start\" x=\"229.5\" y=\"-127.2001\" font-family=\"Lato\" font-size=\"14.00\" fill=\"#000000\">!a &amp; !b</text>\n",
-       "<text text-anchor=\"start\" x=\"234\" y=\"-113.2001\" font-family=\"Lato\" font-size=\"14.00\" fill=\"#1f78b4\">⓿</text>\n",
-       "<text text-anchor=\"start\" x=\"250\" y=\"-113.2001\" font-family=\"Lato\" font-size=\"14.00\" fill=\"#ff4da0\">❶</text>\n",
+       "<text text-anchor=\"start\" x=\"231.5\" y=\"-128.2001\" font-family=\"Lato\" font-size=\"14.00\" fill=\"#000000\">!a &amp; b</text>\n",
+       "<text text-anchor=\"start\" x=\"242\" y=\"-113.2001\" font-family=\"Lato\" font-size=\"14.00\" fill=\"#ff4da0\">❶</text>\n",
        "</g>\n",
        "</g>\n",
        "</svg>\n"
       ],
       "text/plain": [
-       "<spot.twa_graph; proxy of <Swig Object of type 'std::shared_ptr< spot::twa_graph > *' at 0x7f616c1788a0> >"
+       "<spot.twa_graph; proxy of <Swig Object of type 'std::shared_ptr< spot::twa_graph > *' at 0x7f2950267b40> >"
       ]
      },
      "metadata": {},
@@ -1012,12 +1006,12 @@
        "<polygon fill=\"#00ffff\" points=\"137,-109 137,-130 198,-130 198,-109 137,-109\" stroke=\"transparent\"/>\n",
        "<polyline fill=\"none\" points=\"137,-109 198,-109 \" stroke=\"#000000\"/>\n",
        "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"152\" y=\"-115.8\">edges</text>\n",
-       "<polygon fill=\"#00ffff\" points=\"198,-109 198,-130 236,-130 236,-109 198,-109\" stroke=\"transparent\"/>\n",
-       "<polyline fill=\"none\" points=\"198,-109 236,-109 \" stroke=\"#000000\"/>\n",
-       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"213.5\" y=\"-115.8\">1</text>\n",
-       "<polygon fill=\"#00ffff\" points=\"236,-109 236,-130 279,-130 279,-109 236,-109\" stroke=\"transparent\"/>\n",
-       "<polyline fill=\"none\" points=\"236,-109 279,-109 \" stroke=\"#000000\"/>\n",
-       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"254\" y=\"-115.8\">2</text>\n",
+       "<polygon fill=\"#00ffff\" points=\"198,-109 198,-130 241,-130 241,-109 198,-109\" stroke=\"transparent\"/>\n",
+       "<polyline fill=\"none\" points=\"198,-109 241,-109 \" stroke=\"#000000\"/>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"216\" y=\"-115.8\">1</text>\n",
+       "<polygon fill=\"#00ffff\" points=\"241,-109 241,-130 279,-130 279,-109 241,-109\" stroke=\"transparent\"/>\n",
+       "<polyline fill=\"none\" points=\"241,-109 279,-109 \" stroke=\"#000000\"/>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"256.5\" y=\"-115.8\">2</text>\n",
        "<polygon fill=\"#00ffff\" points=\"279,-109 279,-130 322,-130 322,-109 279,-109\" stroke=\"transparent\"/>\n",
        "<polyline fill=\"none\" points=\"279,-109 322,-109 \" stroke=\"#000000\"/>\n",
        "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"297\" y=\"-115.8\">3</text>\n",
@@ -1030,21 +1024,21 @@
        "<polygon fill=\"#00ffff\" points=\"407,-109 407,-130 450,-130 450,-109 407,-109\" stroke=\"transparent\"/>\n",
        "<polyline fill=\"none\" points=\"407,-109 450,-109 \" stroke=\"#000000\"/>\n",
        "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"425\" y=\"-115.8\">6</text>\n",
-       "<polygon fill=\"#00ffff\" points=\"450,-109 450,-130 493,-130 493,-109 450,-109\" stroke=\"transparent\"/>\n",
-       "<polyline fill=\"none\" points=\"450,-109 493,-109 \" stroke=\"#000000\"/>\n",
-       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"468\" y=\"-115.8\">7</text>\n",
-       "<polygon fill=\"#00ffff\" points=\"493,-109 493,-130 540,-130 540,-109 493,-109\" stroke=\"transparent\"/>\n",
-       "<polyline fill=\"none\" points=\"493,-109 540,-109 \" stroke=\"#000000\"/>\n",
-       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"513\" y=\"-115.8\">8</text>\n",
+       "<polygon fill=\"#00ffff\" points=\"450,-109 450,-130 497,-130 497,-109 450,-109\" stroke=\"transparent\"/>\n",
+       "<polyline fill=\"none\" points=\"450,-109 497,-109 \" stroke=\"#000000\"/>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"470\" y=\"-115.8\">7</text>\n",
+       "<polygon fill=\"#00ffff\" points=\"497,-109 497,-130 540,-130 540,-109 497,-109\" stroke=\"transparent\"/>\n",
+       "<polyline fill=\"none\" points=\"497,-109 540,-109 \" stroke=\"#000000\"/>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"515\" y=\"-115.8\">8</text>\n",
        "<polygon fill=\"#00ffff\" points=\"540,-109 540,-130 560,-130 560,-109 540,-109\" stroke=\"transparent\"/>\n",
        "<polyline fill=\"none\" points=\"540,-109 560,-109 \" stroke=\"#000000\"/>\n",
        "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"546.5\" y=\"-115.8\">9</text>\n",
        "<polygon fill=\"none\" points=\"137,-88 137,-109 198,-109 198,-88 137,-88\" stroke=\"#000000\"/>\n",
        "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"154\" y=\"-94.8\">cond</text>\n",
-       "<polygon fill=\"none\" points=\"198,-88 198,-109 236,-109 236,-88 198,-88\" stroke=\"#000000\"/>\n",
-       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"201\" y=\"-94.8\">a &amp; b</text>\n",
-       "<polygon fill=\"none\" points=\"236,-88 236,-109 279,-109 279,-88 236,-88\" stroke=\"#000000\"/>\n",
-       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"239\" y=\"-94.8\">a &amp; !b</text>\n",
+       "<polygon fill=\"none\" points=\"198,-88 198,-109 241,-109 241,-88 198,-88\" stroke=\"#000000\"/>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"201\" y=\"-94.8\">a &amp; !b</text>\n",
+       "<polygon fill=\"none\" points=\"241,-88 241,-109 279,-109 279,-88 241,-88\" stroke=\"#000000\"/>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"244\" y=\"-94.8\">a &amp; b</text>\n",
        "<polygon fill=\"none\" points=\"279,-88 279,-109 322,-109 322,-88 279,-88\" stroke=\"#000000\"/>\n",
        "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"282\" y=\"-94.8\">!a &amp; b</text>\n",
        "<polygon fill=\"none\" points=\"322,-88 322,-109 369,-109 369,-88 322,-88\" stroke=\"#000000\"/>\n",
@@ -1053,18 +1047,18 @@
        "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"372\" y=\"-94.8\">a &amp; b</text>\n",
        "<polygon fill=\"none\" points=\"407,-88 407,-109 450,-109 450,-88 407,-88\" stroke=\"#000000\"/>\n",
        "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"410\" y=\"-94.8\">a &amp; !b</text>\n",
-       "<polygon fill=\"none\" points=\"450,-88 450,-109 493,-109 493,-88 450,-88\" stroke=\"#000000\"/>\n",
-       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"453\" y=\"-94.8\">!a &amp; b</text>\n",
-       "<polygon fill=\"none\" points=\"493,-88 493,-109 540,-109 540,-88 493,-88\" stroke=\"#000000\"/>\n",
-       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"496\" y=\"-94.8\">!a &amp; !b</text>\n",
+       "<polygon fill=\"none\" points=\"450,-88 450,-109 497,-109 497,-88 450,-88\" stroke=\"#000000\"/>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"453\" y=\"-94.8\">!a &amp; !b</text>\n",
+       "<polygon fill=\"none\" points=\"497,-88 497,-109 540,-109 540,-88 497,-88\" stroke=\"#000000\"/>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"500\" y=\"-94.8\">!a &amp; b</text>\n",
        "<polygon fill=\"none\" points=\"540,-88 540,-109 560,-109 560,-88 540,-88\" stroke=\"#000000\"/>\n",
        "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"546.5\" y=\"-94.8\">1</text>\n",
        "<polygon fill=\"none\" points=\"137,-67 137,-88 198,-88 198,-67 137,-67\" stroke=\"#000000\"/>\n",
        "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"158\" y=\"-73.8\">acc</text>\n",
-       "<polygon fill=\"none\" points=\"198,-67 198,-88 236,-88 236,-67 198,-67\" stroke=\"#000000\"/>\n",
-       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"206.5\" y=\"-73.8\">{1}</text>\n",
-       "<polygon fill=\"none\" points=\"236,-67 236,-88 279,-88 279,-67 236,-67\" stroke=\"#000000\"/>\n",
-       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"242\" y=\"-73.8\">{0,1}</text>\n",
+       "<polygon fill=\"none\" points=\"198,-67 198,-88 241,-88 241,-67 198,-67\" stroke=\"#000000\"/>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"209\" y=\"-73.8\">{0}</text>\n",
+       "<polygon fill=\"none\" points=\"241,-67 241,-88 279,-88 279,-67 241,-67\" stroke=\"#000000\"/>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"249.5\" y=\"-73.8\">{1}</text>\n",
        "<polygon fill=\"none\" points=\"279,-67 279,-88 322,-88 322,-67 279,-67\" stroke=\"#000000\"/>\n",
        "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"290\" y=\"-73.8\">{1}</text>\n",
        "<polygon fill=\"none\" points=\"322,-67 322,-88 369,-88 369,-67 322,-67\" stroke=\"#000000\"/>\n",
@@ -1073,20 +1067,20 @@
        "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"381\" y=\"-73.8\">{}</text>\n",
        "<polygon fill=\"none\" points=\"407,-67 407,-88 450,-88 450,-67 407,-67\" stroke=\"#000000\"/>\n",
        "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"418\" y=\"-73.8\">{0}</text>\n",
-       "<polygon fill=\"none\" points=\"450,-67 450,-88 493,-88 493,-67 450,-67\" stroke=\"#000000\"/>\n",
-       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"461\" y=\"-73.8\">{1}</text>\n",
-       "<polygon fill=\"none\" points=\"493,-67 493,-88 540,-88 540,-67 493,-67\" stroke=\"#000000\"/>\n",
-       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"501\" y=\"-73.8\">{0,1}</text>\n",
+       "<polygon fill=\"none\" points=\"450,-67 450,-88 497,-88 497,-67 450,-67\" stroke=\"#000000\"/>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"463\" y=\"-73.8\">{0}</text>\n",
+       "<polygon fill=\"none\" points=\"497,-67 497,-88 540,-88 540,-67 497,-67\" stroke=\"#000000\"/>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"508\" y=\"-73.8\">{1}</text>\n",
        "<polygon fill=\"none\" points=\"540,-67 540,-88 560,-88 560,-67 540,-67\" stroke=\"#000000\"/>\n",
        "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"543\" y=\"-73.8\">{}</text>\n",
        "<polygon fill=\"none\" points=\"137,-46 137,-67 198,-67 198,-46 137,-46\" stroke=\"#000000\"/>\n",
        "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"159.5\" y=\"-52.8\">dst</text>\n",
-       "<polygon fill=\"#ffff00\" points=\"198,-46 198,-67 236,-67 236,-46 198,-46\" stroke=\"transparent\"/>\n",
-       "<polygon fill=\"none\" points=\"198,-46 198,-67 236,-67 236,-46 198,-46\" stroke=\"#000000\"/>\n",
-       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"213.5\" y=\"-52.8\">0</text>\n",
-       "<polygon fill=\"#ffff00\" points=\"236,-46 236,-67 279,-67 279,-46 236,-46\" stroke=\"transparent\"/>\n",
-       "<polygon fill=\"none\" points=\"236,-46 236,-67 279,-67 279,-46 236,-46\" stroke=\"#000000\"/>\n",
-       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"254\" y=\"-52.8\">0</text>\n",
+       "<polygon fill=\"#ffff00\" points=\"198,-46 198,-67 241,-67 241,-46 198,-46\" stroke=\"transparent\"/>\n",
+       "<polygon fill=\"none\" points=\"198,-46 198,-67 241,-67 241,-46 198,-46\" stroke=\"#000000\"/>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"216\" y=\"-52.8\">0</text>\n",
+       "<polygon fill=\"#ffff00\" points=\"241,-46 241,-67 279,-67 279,-46 241,-46\" stroke=\"transparent\"/>\n",
+       "<polygon fill=\"none\" points=\"241,-46 241,-67 279,-67 279,-46 241,-46\" stroke=\"#000000\"/>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"256.5\" y=\"-52.8\">0</text>\n",
        "<polygon fill=\"#ffff00\" points=\"279,-46 279,-67 322,-67 322,-46 279,-46\" stroke=\"transparent\"/>\n",
        "<polygon fill=\"none\" points=\"279,-46 279,-67 322,-67 322,-46 279,-46\" stroke=\"#000000\"/>\n",
        "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"297\" y=\"-52.8\">0</text>\n",
@@ -1099,23 +1093,23 @@
        "<polygon fill=\"#ffff00\" points=\"407,-46 407,-67 450,-67 450,-46 407,-46\" stroke=\"transparent\"/>\n",
        "<polygon fill=\"none\" points=\"407,-46 407,-67 450,-67 450,-46 407,-46\" stroke=\"#000000\"/>\n",
        "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"425\" y=\"-52.8\">0</text>\n",
-       "<polygon fill=\"#ffff00\" points=\"450,-46 450,-67 493,-67 493,-46 450,-46\" stroke=\"transparent\"/>\n",
-       "<polygon fill=\"none\" points=\"450,-46 450,-67 493,-67 493,-46 450,-46\" stroke=\"#000000\"/>\n",
-       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"468\" y=\"-52.8\">1</text>\n",
-       "<polygon fill=\"#ffff00\" points=\"493,-46 493,-67 540,-67 540,-46 493,-46\" stroke=\"transparent\"/>\n",
-       "<polygon fill=\"none\" points=\"493,-46 493,-67 540,-67 540,-46 493,-46\" stroke=\"#000000\"/>\n",
-       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"513\" y=\"-52.8\">1</text>\n",
+       "<polygon fill=\"#ffff00\" points=\"450,-46 450,-67 497,-67 497,-46 450,-46\" stroke=\"transparent\"/>\n",
+       "<polygon fill=\"none\" points=\"450,-46 450,-67 497,-67 497,-46 450,-46\" stroke=\"#000000\"/>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"470\" y=\"-52.8\">1</text>\n",
+       "<polygon fill=\"#ffff00\" points=\"497,-46 497,-67 540,-67 540,-46 497,-46\" stroke=\"transparent\"/>\n",
+       "<polygon fill=\"none\" points=\"497,-46 497,-67 540,-67 540,-46 497,-46\" stroke=\"#000000\"/>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"515\" y=\"-52.8\">1</text>\n",
        "<polygon fill=\"#ffff00\" points=\"540,-46 540,-67 560,-67 560,-46 540,-46\" stroke=\"transparent\"/>\n",
        "<polygon fill=\"none\" points=\"540,-46 540,-67 560,-67 560,-46 540,-46\" stroke=\"#000000\"/>\n",
        "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"546.5\" y=\"-52.8\">0</text>\n",
        "<polygon fill=\"none\" points=\"137,-25 137,-46 198,-46 198,-25 137,-25\" stroke=\"#000000\"/>\n",
        "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"140\" y=\"-31.8\">next_succ</text>\n",
-       "<polygon fill=\"#00ffff\" points=\"198,-25 198,-46 236,-46 236,-25 198,-25\" stroke=\"transparent\"/>\n",
-       "<polygon fill=\"none\" points=\"198,-25 198,-46 236,-46 236,-25 198,-25\" stroke=\"#000000\"/>\n",
-       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"213.5\" y=\"-31.8\">2</text>\n",
-       "<polygon fill=\"#00ffff\" points=\"236,-25 236,-46 279,-46 279,-25 236,-25\" stroke=\"transparent\"/>\n",
-       "<polygon fill=\"none\" points=\"236,-25 236,-46 279,-46 279,-25 236,-25\" stroke=\"#000000\"/>\n",
-       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"254\" y=\"-31.8\">3</text>\n",
+       "<polygon fill=\"#00ffff\" points=\"198,-25 198,-46 241,-46 241,-25 198,-25\" stroke=\"transparent\"/>\n",
+       "<polygon fill=\"none\" points=\"198,-25 198,-46 241,-46 241,-25 198,-25\" stroke=\"#000000\"/>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"216\" y=\"-31.8\">2</text>\n",
+       "<polygon fill=\"#00ffff\" points=\"241,-25 241,-46 279,-46 279,-25 241,-25\" stroke=\"transparent\"/>\n",
+       "<polygon fill=\"none\" points=\"241,-25 241,-46 279,-46 279,-25 241,-25\" stroke=\"#000000\"/>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"256.5\" y=\"-31.8\">3</text>\n",
        "<polygon fill=\"#00ffff\" points=\"279,-25 279,-46 322,-46 322,-25 279,-25\" stroke=\"transparent\"/>\n",
        "<polygon fill=\"none\" points=\"279,-25 279,-46 322,-46 322,-25 279,-25\" stroke=\"#000000\"/>\n",
        "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"297\" y=\"-31.8\">4</text>\n",
@@ -1127,21 +1121,21 @@
        "<polygon fill=\"#00ffff\" points=\"407,-25 407,-46 450,-46 450,-25 407,-25\" stroke=\"transparent\"/>\n",
        "<polygon fill=\"none\" points=\"407,-25 407,-46 450,-46 450,-25 407,-25\" stroke=\"#000000\"/>\n",
        "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"425\" y=\"-31.8\">7</text>\n",
-       "<polygon fill=\"#00ffff\" points=\"450,-25 450,-46 493,-46 493,-25 450,-25\" stroke=\"transparent\"/>\n",
-       "<polygon fill=\"none\" points=\"450,-25 450,-46 493,-46 493,-25 450,-25\" stroke=\"#000000\"/>\n",
-       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"468\" y=\"-31.8\">8</text>\n",
-       "<polygon fill=\"none\" points=\"493,-25 493,-46 540,-46 540,-25 493,-25\" stroke=\"#000000\"/>\n",
-       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"513\" y=\"-31.8\">0</text>\n",
+       "<polygon fill=\"#00ffff\" points=\"450,-25 450,-46 497,-46 497,-25 450,-25\" stroke=\"transparent\"/>\n",
+       "<polygon fill=\"none\" points=\"450,-25 450,-46 497,-46 497,-25 450,-25\" stroke=\"#000000\"/>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"470\" y=\"-31.8\">8</text>\n",
+       "<polygon fill=\"none\" points=\"497,-25 497,-46 540,-46 540,-25 497,-25\" stroke=\"#000000\"/>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"515\" y=\"-31.8\">0</text>\n",
        "<polygon fill=\"none\" points=\"540,-25 540,-46 560,-46 560,-25 540,-25\" stroke=\"#000000\"/>\n",
        "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"546.5\" y=\"-31.8\">0</text>\n",
        "<polygon fill=\"none\" points=\"137,-4 137,-25 198,-25 198,-4 137,-4\" stroke=\"#000000\"/>\n",
        "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"159.5\" y=\"-10.8\">src</text>\n",
-       "<polygon fill=\"#ffff00\" points=\"198,-4 198,-25 236,-25 236,-4 198,-4\" stroke=\"transparent\"/>\n",
-       "<polygon fill=\"none\" points=\"198,-4 198,-25 236,-25 236,-4 198,-4\" stroke=\"#000000\"/>\n",
-       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"213.5\" y=\"-10.8\">0</text>\n",
-       "<polygon fill=\"#ffff00\" points=\"236,-4 236,-25 279,-25 279,-4 236,-4\" stroke=\"transparent\"/>\n",
-       "<polygon fill=\"none\" points=\"236,-4 236,-25 279,-25 279,-4 236,-4\" stroke=\"#000000\"/>\n",
-       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"254\" y=\"-10.8\">0</text>\n",
+       "<polygon fill=\"#ffff00\" points=\"198,-4 198,-25 241,-25 241,-4 198,-4\" stroke=\"transparent\"/>\n",
+       "<polygon fill=\"none\" points=\"198,-4 198,-25 241,-25 241,-4 198,-4\" stroke=\"#000000\"/>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"216\" y=\"-10.8\">0</text>\n",
+       "<polygon fill=\"#ffff00\" points=\"241,-4 241,-25 279,-25 279,-4 241,-4\" stroke=\"transparent\"/>\n",
+       "<polygon fill=\"none\" points=\"241,-4 241,-25 279,-25 279,-4 241,-4\" stroke=\"#000000\"/>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"256.5\" y=\"-10.8\">0</text>\n",
        "<polygon fill=\"#ffff00\" points=\"279,-4 279,-25 322,-25 322,-4 279,-4\" stroke=\"transparent\"/>\n",
        "<polygon fill=\"none\" points=\"279,-4 279,-25 322,-25 322,-4 279,-4\" stroke=\"#000000\"/>\n",
        "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"297\" y=\"-10.8\">0</text>\n",
@@ -1154,12 +1148,12 @@
        "<polygon fill=\"#ffff00\" points=\"407,-4 407,-25 450,-25 450,-4 407,-4\" stroke=\"transparent\"/>\n",
        "<polygon fill=\"none\" points=\"407,-4 407,-25 450,-25 450,-4 407,-4\" stroke=\"#000000\"/>\n",
        "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"425\" y=\"-10.8\">1</text>\n",
-       "<polygon fill=\"#ffff00\" points=\"450,-4 450,-25 493,-25 493,-4 450,-4\" stroke=\"transparent\"/>\n",
-       "<polygon fill=\"none\" points=\"450,-4 450,-25 493,-25 493,-4 450,-4\" stroke=\"#000000\"/>\n",
-       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"468\" y=\"-10.8\">1</text>\n",
-       "<polygon fill=\"#ffff00\" points=\"493,-4 493,-25 540,-25 540,-4 493,-4\" stroke=\"transparent\"/>\n",
-       "<polygon fill=\"none\" points=\"493,-4 493,-25 540,-25 540,-4 493,-4\" stroke=\"#000000\"/>\n",
-       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"513\" y=\"-10.8\">1</text>\n",
+       "<polygon fill=\"#ffff00\" points=\"450,-4 450,-25 497,-25 497,-4 450,-4\" stroke=\"transparent\"/>\n",
+       "<polygon fill=\"none\" points=\"450,-4 450,-25 497,-25 497,-4 450,-4\" stroke=\"#000000\"/>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"470\" y=\"-10.8\">1</text>\n",
+       "<polygon fill=\"#ffff00\" points=\"497,-4 497,-25 540,-25 540,-4 497,-4\" stroke=\"transparent\"/>\n",
+       "<polygon fill=\"none\" points=\"497,-4 497,-25 540,-25 540,-4 497,-4\" stroke=\"#000000\"/>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"515\" y=\"-10.8\">1</text>\n",
        "<polygon fill=\"#ffff00\" points=\"540,-4 540,-25 560,-25 560,-4 540,-4\" stroke=\"transparent\"/>\n",
        "<polygon fill=\"none\" points=\"540,-4 540,-25 560,-25 560,-4 540,-4\" stroke=\"#000000\"/>\n",
        "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"546.5\" y=\"-10.8\">2</text>\n",
@@ -1206,16 +1200,16 @@
        "<!-- Generated by graphviz version 2.40.1 (20161225.0304)\n",
        " -->\n",
        "<!-- Pages: 1 -->\n",
-       "<svg width=\"279pt\" height=\"199pt\"\n",
-       " viewBox=\"0.00 0.00 278.50 199.40\" xmlns=\"http://www.w3.org/2000/svg\" xmlns:xlink=\"http://www.w3.org/1999/xlink\">\n",
-       "<g id=\"graph0\" class=\"graph\" transform=\"scale(1 1) rotate(0) translate(4 195.4001)\">\n",
-       "<polygon fill=\"#ffffff\" stroke=\"transparent\" points=\"-4,4 -4,-195.4001 274.5,-195.4001 274.5,4 -4,4\"/>\n",
-       "<text text-anchor=\"start\" x=\"83.25\" y=\"-177.2001\" font-family=\"Lato\" font-size=\"14.00\" fill=\"#000000\">Fin(</text>\n",
-       "<text text-anchor=\"start\" x=\"108.25\" y=\"-177.2001\" font-family=\"Lato\" font-size=\"14.00\" fill=\"#1f78b4\">⓿</text>\n",
-       "<text text-anchor=\"start\" x=\"124.25\" y=\"-177.2001\" font-family=\"Lato\" font-size=\"14.00\" fill=\"#000000\">) &amp; Inf(</text>\n",
-       "<text text-anchor=\"start\" x=\"167.25\" y=\"-177.2001\" font-family=\"Lato\" font-size=\"14.00\" fill=\"#ff4da0\">❶</text>\n",
-       "<text text-anchor=\"start\" x=\"183.25\" y=\"-177.2001\" font-family=\"Lato\" font-size=\"14.00\" fill=\"#000000\">)</text>\n",
-       "<text text-anchor=\"start\" x=\"106.25\" y=\"-163.2001\" font-family=\"Lato\" font-size=\"14.00\" fill=\"#000000\">[Rabin 1]</text>\n",
+       "<svg width=\"279pt\" height=\"201pt\"\n",
+       " viewBox=\"0.00 0.00 278.50 201.40\" xmlns=\"http://www.w3.org/2000/svg\" xmlns:xlink=\"http://www.w3.org/1999/xlink\">\n",
+       "<g id=\"graph0\" class=\"graph\" transform=\"scale(1 1) rotate(0) translate(4 197.4001)\">\n",
+       "<polygon fill=\"#ffffff\" stroke=\"transparent\" points=\"-4,4 -4,-197.4001 274.5,-197.4001 274.5,4 -4,4\"/>\n",
+       "<text text-anchor=\"start\" x=\"83.25\" y=\"-179.2001\" font-family=\"Lato\" font-size=\"14.00\" fill=\"#000000\">Fin(</text>\n",
+       "<text text-anchor=\"start\" x=\"108.25\" y=\"-179.2001\" font-family=\"Lato\" font-size=\"14.00\" fill=\"#1f78b4\">⓿</text>\n",
+       "<text text-anchor=\"start\" x=\"124.25\" y=\"-179.2001\" font-family=\"Lato\" font-size=\"14.00\" fill=\"#000000\">) &amp; Inf(</text>\n",
+       "<text text-anchor=\"start\" x=\"167.25\" y=\"-179.2001\" font-family=\"Lato\" font-size=\"14.00\" fill=\"#ff4da0\">❶</text>\n",
+       "<text text-anchor=\"start\" x=\"183.25\" y=\"-179.2001\" font-family=\"Lato\" font-size=\"14.00\" fill=\"#000000\">)</text>\n",
+       "<text text-anchor=\"start\" x=\"106.25\" y=\"-165.2001\" font-family=\"Lato\" font-size=\"14.00\" fill=\"#000000\">[Rabin 1]</text>\n",
        "<!-- I -->\n",
        "<!-- 2 -->\n",
        "<g id=\"node2\" class=\"node\">\n",
@@ -1247,17 +1241,16 @@
        "<title>0&#45;&gt;0</title>\n",
        "<path fill=\"none\" stroke=\"#000000\" d=\"M133.4047,-61.1818C132.7938,-70.7151 133.9922,-79.4001 137,-79.4001 139.2089,-79.4001 140.4419,-74.7162 140.6991,-68.4522\"/>\n",
        "<polygon fill=\"#000000\" stroke=\"#000000\" points=\"140.5953,-61.1818 143.845,-68.1361 140.6453,-64.6815 140.6954,-68.1811 140.6954,-68.1811 140.6954,-68.1811 140.6453,-64.6815 137.5457,-68.2262 140.5953,-61.1818 140.5953,-61.1818\"/>\n",
-       "<text text-anchor=\"start\" x=\"132.5\" y=\"-98.2001\" font-family=\"Lato\" font-size=\"14.00\" fill=\"#000000\">b</text>\n",
-       "<text text-anchor=\"start\" x=\"129\" y=\"-83.2001\" font-family=\"Lato\" font-size=\"14.00\" fill=\"#ff4da0\">❶</text>\n",
+       "<text text-anchor=\"start\" x=\"118.5\" y=\"-98.2001\" font-family=\"Lato\" font-size=\"14.00\" fill=\"#000000\">a &amp; !b</text>\n",
+       "<text text-anchor=\"start\" x=\"129\" y=\"-83.2001\" font-family=\"Lato\" font-size=\"14.00\" fill=\"#1f78b4\">⓿</text>\n",
        "</g>\n",
        "<!-- 0&#45;&gt;0 -->\n",
        "<g id=\"edge3\" class=\"edge\">\n",
        "<title>0&#45;&gt;0</title>\n",
        "<path fill=\"none\" stroke=\"#000000\" d=\"M131.494,-60.6491C127.5865,-81.8347 129.4219,-109.4001 137,-109.4001 143.7493,-109.4001 145.9433,-87.5349 143.582,-67.7852\"/>\n",
        "<polygon fill=\"#000000\" stroke=\"#000000\" points=\"142.506,-60.6491 146.6646,-67.1012 143.0279,-64.11 143.5498,-67.5709 143.5498,-67.5709 143.5498,-67.5709 143.0279,-64.11 140.435,-68.0406 142.506,-60.6491 142.506,-60.6491\"/>\n",
-       "<text text-anchor=\"start\" x=\"118.5\" y=\"-127.2001\" font-family=\"Lato\" font-size=\"14.00\" fill=\"#000000\">a &amp; !b</text>\n",
-       "<text text-anchor=\"start\" x=\"121\" y=\"-113.2001\" font-family=\"Lato\" font-size=\"14.00\" fill=\"#1f78b4\">⓿</text>\n",
-       "<text text-anchor=\"start\" x=\"137\" y=\"-113.2001\" font-family=\"Lato\" font-size=\"14.00\" fill=\"#ff4da0\">❶</text>\n",
+       "<text text-anchor=\"start\" x=\"132.5\" y=\"-128.2001\" font-family=\"Lato\" font-size=\"14.00\" fill=\"#000000\">b</text>\n",
+       "<text text-anchor=\"start\" x=\"129\" y=\"-113.2001\" font-family=\"Lato\" font-size=\"14.00\" fill=\"#ff4da0\">❶</text>\n",
        "</g>\n",
        "<!-- 1 -->\n",
        "<g id=\"node4\" class=\"node\">\n",
@@ -1293,23 +1286,22 @@
        "<title>1&#45;&gt;1</title>\n",
        "<path fill=\"none\" stroke=\"#000000\" d=\"M245.0012,-60.81C244.0681,-70.488 245.7344,-79.4001 250,-79.4001 253.1326,-79.4001 254.8633,-74.5937 255.1921,-68.2074\"/>\n",
        "<polygon fill=\"#000000\" stroke=\"#000000\" points=\"254.9988,-60.81 258.3307,-67.7253 255.0903,-64.3088 255.1818,-67.8076 255.1818,-67.8076 255.1818,-67.8076 255.0903,-64.3088 252.0329,-67.89 254.9988,-60.81 254.9988,-60.81\"/>\n",
-       "<text text-anchor=\"start\" x=\"231.5\" y=\"-98.2001\" font-family=\"Lato\" font-size=\"14.00\" fill=\"#000000\">!a &amp; b</text>\n",
-       "<text text-anchor=\"start\" x=\"242\" y=\"-83.2001\" font-family=\"Lato\" font-size=\"14.00\" fill=\"#ff4da0\">❶</text>\n",
+       "<text text-anchor=\"start\" x=\"229.5\" y=\"-98.2001\" font-family=\"Lato\" font-size=\"14.00\" fill=\"#000000\">!a &amp; !b</text>\n",
+       "<text text-anchor=\"start\" x=\"242\" y=\"-83.2001\" font-family=\"Lato\" font-size=\"14.00\" fill=\"#1f78b4\">⓿</text>\n",
        "</g>\n",
        "<!-- 1&#45;&gt;1 -->\n",
        "<g id=\"edge8\" class=\"edge\">\n",
        "<title>1&#45;&gt;1</title>\n",
        "<path fill=\"none\" stroke=\"#000000\" d=\"M242.4634,-59.996C236.769,-81.2634 239.2813,-109.4001 250,-109.4001 259.5883,-109.4001 262.6098,-86.8855 259.0645,-66.9133\"/>\n",
        "<polygon fill=\"#000000\" stroke=\"#000000\" points=\"257.5366,-59.996 262.1223,-66.1518 258.2915,-63.4136 259.0464,-66.8312 259.0464,-66.8312 259.0464,-66.8312 258.2915,-63.4136 255.9706,-67.5107 257.5366,-59.996 257.5366,-59.996\"/>\n",
-       "<text text-anchor=\"start\" x=\"229.5\" y=\"-127.2001\" font-family=\"Lato\" font-size=\"14.00\" fill=\"#000000\">!a &amp; !b</text>\n",
-       "<text text-anchor=\"start\" x=\"234\" y=\"-113.2001\" font-family=\"Lato\" font-size=\"14.00\" fill=\"#1f78b4\">⓿</text>\n",
-       "<text text-anchor=\"start\" x=\"250\" y=\"-113.2001\" font-family=\"Lato\" font-size=\"14.00\" fill=\"#ff4da0\">❶</text>\n",
+       "<text text-anchor=\"start\" x=\"231.5\" y=\"-128.2001\" font-family=\"Lato\" font-size=\"14.00\" fill=\"#000000\">!a &amp; b</text>\n",
+       "<text text-anchor=\"start\" x=\"242\" y=\"-113.2001\" font-family=\"Lato\" font-size=\"14.00\" fill=\"#ff4da0\">❶</text>\n",
        "</g>\n",
        "</g>\n",
        "</svg>\n"
       ],
       "text/plain": [
-       "<spot.twa_graph; proxy of <Swig Object of type 'std::shared_ptr< spot::twa_graph > *' at 0x7f616c1788a0> >"
+       "<spot.twa_graph; proxy of <Swig Object of type 'std::shared_ptr< spot::twa_graph > *' at 0x7f2950267b40> >"
       ]
      },
      "metadata": {},
@@ -1366,12 +1358,12 @@
        "<polygon fill=\"#00ffff\" points=\"137,-109 137,-130 198,-130 198,-109 137,-109\" stroke=\"transparent\"/>\n",
        "<polyline fill=\"none\" points=\"137,-109 198,-109 \" stroke=\"#000000\"/>\n",
        "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"152\" y=\"-115.8\">edges</text>\n",
-       "<polygon fill=\"#00ffff\" points=\"198,-109 198,-130 225,-130 225,-109 198,-109\" stroke=\"transparent\"/>\n",
-       "<polyline fill=\"none\" points=\"198,-109 225,-109 \" stroke=\"#000000\"/>\n",
-       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"208\" y=\"-115.8\">1</text>\n",
-       "<polygon fill=\"#00ffff\" points=\"225,-109 225,-130 268,-130 268,-109 225,-109\" stroke=\"transparent\"/>\n",
-       "<polyline fill=\"none\" points=\"225,-109 268,-109 \" stroke=\"#000000\"/>\n",
-       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"243\" y=\"-115.8\">2</text>\n",
+       "<polygon fill=\"#00ffff\" points=\"198,-109 198,-130 241,-130 241,-109 198,-109\" stroke=\"transparent\"/>\n",
+       "<polyline fill=\"none\" points=\"198,-109 241,-109 \" stroke=\"#000000\"/>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"216\" y=\"-115.8\">1</text>\n",
+       "<polygon fill=\"#00ffff\" points=\"241,-109 241,-130 268,-130 268,-109 241,-109\" stroke=\"transparent\"/>\n",
+       "<polyline fill=\"none\" points=\"241,-109 268,-109 \" stroke=\"#000000\"/>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"251\" y=\"-115.8\">2</text>\n",
        "<polygon fill=\"#00ffff\" points=\"268,-109 268,-130 315,-130 315,-109 268,-109\" stroke=\"transparent\"/>\n",
        "<polyline fill=\"none\" points=\"268,-109 315,-109 \" stroke=\"#000000\"/>\n",
        "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"288\" y=\"-115.8\">3</text>\n",
@@ -1381,59 +1373,59 @@
        "<polygon fill=\"#00ffff\" points=\"353,-109 353,-130 396,-130 396,-109 353,-109\" stroke=\"transparent\"/>\n",
        "<polyline fill=\"none\" points=\"353,-109 396,-109 \" stroke=\"#000000\"/>\n",
        "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"371\" y=\"-115.8\">5</text>\n",
-       "<polygon fill=\"#00ffff\" points=\"396,-109 396,-130 439,-130 439,-109 396,-109\" stroke=\"transparent\"/>\n",
-       "<polyline fill=\"none\" points=\"396,-109 439,-109 \" stroke=\"#000000\"/>\n",
-       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"414\" y=\"-115.8\">6</text>\n",
-       "<polygon fill=\"#00ffff\" points=\"439,-109 439,-130 486,-130 486,-109 439,-109\" stroke=\"transparent\"/>\n",
-       "<polyline fill=\"none\" points=\"439,-109 486,-109 \" stroke=\"#000000\"/>\n",
-       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"459\" y=\"-115.8\">7</text>\n",
+       "<polygon fill=\"#00ffff\" points=\"396,-109 396,-130 443,-130 443,-109 396,-109\" stroke=\"transparent\"/>\n",
+       "<polyline fill=\"none\" points=\"396,-109 443,-109 \" stroke=\"#000000\"/>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"416\" y=\"-115.8\">6</text>\n",
+       "<polygon fill=\"#00ffff\" points=\"443,-109 443,-130 486,-130 486,-109 443,-109\" stroke=\"transparent\"/>\n",
+       "<polyline fill=\"none\" points=\"443,-109 486,-109 \" stroke=\"#000000\"/>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"461\" y=\"-115.8\">7</text>\n",
        "<polygon fill=\"#00ffff\" points=\"486,-109 486,-130 506,-130 506,-109 486,-109\" stroke=\"transparent\"/>\n",
        "<polyline fill=\"none\" points=\"486,-109 506,-109 \" stroke=\"#000000\"/>\n",
        "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"492.5\" y=\"-115.8\">8</text>\n",
        "<polygon fill=\"none\" points=\"137,-88 137,-109 198,-109 198,-88 137,-88\" stroke=\"#000000\"/>\n",
        "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"154\" y=\"-94.8\">cond</text>\n",
-       "<polygon fill=\"none\" points=\"198,-88 198,-109 225,-109 225,-88 198,-88\" stroke=\"#000000\"/>\n",
-       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"208\" y=\"-94.8\">b</text>\n",
-       "<polygon fill=\"none\" points=\"225,-88 225,-109 268,-109 268,-88 225,-88\" stroke=\"#000000\"/>\n",
-       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"228\" y=\"-94.8\">a &amp; !b</text>\n",
+       "<polygon fill=\"none\" points=\"198,-88 198,-109 241,-109 241,-88 198,-88\" stroke=\"#000000\"/>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"201\" y=\"-94.8\">a &amp; !b</text>\n",
+       "<polygon fill=\"none\" points=\"241,-88 241,-109 268,-109 268,-88 241,-88\" stroke=\"#000000\"/>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"251\" y=\"-94.8\">b</text>\n",
        "<polygon fill=\"none\" points=\"268,-88 268,-109 315,-109 315,-88 268,-88\" stroke=\"#000000\"/>\n",
        "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"271\" y=\"-94.8\">!a &amp; !b</text>\n",
        "<polygon fill=\"none\" points=\"315,-88 315,-109 353,-109 353,-88 315,-88\" stroke=\"#000000\"/>\n",
        "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"318\" y=\"-94.8\">a &amp; b</text>\n",
        "<polygon fill=\"none\" points=\"353,-88 353,-109 396,-109 396,-88 353,-88\" stroke=\"#000000\"/>\n",
        "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"356\" y=\"-94.8\">a &amp; !b</text>\n",
-       "<polygon fill=\"none\" points=\"396,-88 396,-109 439,-109 439,-88 396,-88\" stroke=\"#000000\"/>\n",
-       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"399\" y=\"-94.8\">!a &amp; b</text>\n",
-       "<polygon fill=\"none\" points=\"439,-88 439,-109 486,-109 486,-88 439,-88\" stroke=\"#000000\"/>\n",
-       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"442\" y=\"-94.8\">!a &amp; !b</text>\n",
+       "<polygon fill=\"none\" points=\"396,-88 396,-109 443,-109 443,-88 396,-88\" stroke=\"#000000\"/>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"399\" y=\"-94.8\">!a &amp; !b</text>\n",
+       "<polygon fill=\"none\" points=\"443,-88 443,-109 486,-109 486,-88 443,-88\" stroke=\"#000000\"/>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"446\" y=\"-94.8\">!a &amp; b</text>\n",
        "<polygon fill=\"none\" points=\"486,-88 486,-109 506,-109 506,-88 486,-88\" stroke=\"#000000\"/>\n",
        "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"492.5\" y=\"-94.8\">1</text>\n",
        "<polygon fill=\"none\" points=\"137,-67 137,-88 198,-88 198,-67 137,-67\" stroke=\"#000000\"/>\n",
        "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"158\" y=\"-73.8\">acc</text>\n",
-       "<polygon fill=\"none\" points=\"198,-67 198,-88 225,-88 225,-67 198,-67\" stroke=\"#000000\"/>\n",
-       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"201\" y=\"-73.8\">{1}</text>\n",
-       "<polygon fill=\"none\" points=\"225,-67 225,-88 268,-88 268,-67 225,-67\" stroke=\"#000000\"/>\n",
-       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"231\" y=\"-73.8\">{0,1}</text>\n",
+       "<polygon fill=\"none\" points=\"198,-67 198,-88 241,-88 241,-67 198,-67\" stroke=\"#000000\"/>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"209\" y=\"-73.8\">{0}</text>\n",
+       "<polygon fill=\"none\" points=\"241,-67 241,-88 268,-88 268,-67 241,-67\" stroke=\"#000000\"/>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"244\" y=\"-73.8\">{1}</text>\n",
        "<polygon fill=\"none\" points=\"268,-67 268,-88 315,-88 315,-67 268,-67\" stroke=\"#000000\"/>\n",
        "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"281\" y=\"-73.8\">{0}</text>\n",
        "<polygon fill=\"none\" points=\"315,-67 315,-88 353,-88 353,-67 315,-67\" stroke=\"#000000\"/>\n",
        "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"327\" y=\"-73.8\">{}</text>\n",
        "<polygon fill=\"none\" points=\"353,-67 353,-88 396,-88 396,-67 353,-67\" stroke=\"#000000\"/>\n",
        "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"364\" y=\"-73.8\">{0}</text>\n",
-       "<polygon fill=\"none\" points=\"396,-67 396,-88 439,-88 439,-67 396,-67\" stroke=\"#000000\"/>\n",
-       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"407\" y=\"-73.8\">{1}</text>\n",
-       "<polygon fill=\"none\" points=\"439,-67 439,-88 486,-88 486,-67 439,-67\" stroke=\"#000000\"/>\n",
-       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"447\" y=\"-73.8\">{0,1}</text>\n",
+       "<polygon fill=\"none\" points=\"396,-67 396,-88 443,-88 443,-67 396,-67\" stroke=\"#000000\"/>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"409\" y=\"-73.8\">{0}</text>\n",
+       "<polygon fill=\"none\" points=\"443,-67 443,-88 486,-88 486,-67 443,-67\" stroke=\"#000000\"/>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"454\" y=\"-73.8\">{1}</text>\n",
        "<polygon fill=\"none\" points=\"486,-67 486,-88 506,-88 506,-67 486,-67\" stroke=\"#000000\"/>\n",
        "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"489\" y=\"-73.8\">{}</text>\n",
        "<polygon fill=\"none\" points=\"137,-46 137,-67 198,-67 198,-46 137,-46\" stroke=\"#000000\"/>\n",
        "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"159.5\" y=\"-52.8\">dst</text>\n",
-       "<polygon fill=\"#ffff00\" points=\"198,-46 198,-67 225,-67 225,-46 198,-46\" stroke=\"transparent\"/>\n",
-       "<polygon fill=\"none\" points=\"198,-46 198,-67 225,-67 225,-46 198,-46\" stroke=\"#000000\"/>\n",
-       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"208\" y=\"-52.8\">0</text>\n",
-       "<polygon fill=\"#ffff00\" points=\"225,-46 225,-67 268,-67 268,-46 225,-46\" stroke=\"transparent\"/>\n",
-       "<polygon fill=\"none\" points=\"225,-46 225,-67 268,-67 268,-46 225,-46\" stroke=\"#000000\"/>\n",
-       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"243\" y=\"-52.8\">0</text>\n",
+       "<polygon fill=\"#ffff00\" points=\"198,-46 198,-67 241,-67 241,-46 198,-46\" stroke=\"transparent\"/>\n",
+       "<polygon fill=\"none\" points=\"198,-46 198,-67 241,-67 241,-46 198,-46\" stroke=\"#000000\"/>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"216\" y=\"-52.8\">0</text>\n",
+       "<polygon fill=\"#ffff00\" points=\"241,-46 241,-67 268,-67 268,-46 241,-46\" stroke=\"transparent\"/>\n",
+       "<polygon fill=\"none\" points=\"241,-46 241,-67 268,-67 268,-46 241,-46\" stroke=\"#000000\"/>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"251\" y=\"-52.8\">0</text>\n",
        "<polygon fill=\"#ffff00\" points=\"268,-46 268,-67 315,-67 315,-46 268,-46\" stroke=\"transparent\"/>\n",
        "<polygon fill=\"none\" points=\"268,-46 268,-67 315,-67 315,-46 268,-46\" stroke=\"#000000\"/>\n",
        "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"288\" y=\"-52.8\">1</text>\n",
@@ -1443,23 +1435,23 @@
        "<polygon fill=\"#ffff00\" points=\"353,-46 353,-67 396,-67 396,-46 353,-46\" stroke=\"transparent\"/>\n",
        "<polygon fill=\"none\" points=\"353,-46 353,-67 396,-67 396,-46 353,-46\" stroke=\"#000000\"/>\n",
        "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"371\" y=\"-52.8\">0</text>\n",
-       "<polygon fill=\"#ffff00\" points=\"396,-46 396,-67 439,-67 439,-46 396,-46\" stroke=\"transparent\"/>\n",
-       "<polygon fill=\"none\" points=\"396,-46 396,-67 439,-67 439,-46 396,-46\" stroke=\"#000000\"/>\n",
-       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"414\" y=\"-52.8\">1</text>\n",
-       "<polygon fill=\"#ffff00\" points=\"439,-46 439,-67 486,-67 486,-46 439,-46\" stroke=\"transparent\"/>\n",
-       "<polygon fill=\"none\" points=\"439,-46 439,-67 486,-67 486,-46 439,-46\" stroke=\"#000000\"/>\n",
-       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"459\" y=\"-52.8\">1</text>\n",
+       "<polygon fill=\"#ffff00\" points=\"396,-46 396,-67 443,-67 443,-46 396,-46\" stroke=\"transparent\"/>\n",
+       "<polygon fill=\"none\" points=\"396,-46 396,-67 443,-67 443,-46 396,-46\" stroke=\"#000000\"/>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"416\" y=\"-52.8\">1</text>\n",
+       "<polygon fill=\"#ffff00\" points=\"443,-46 443,-67 486,-67 486,-46 443,-46\" stroke=\"transparent\"/>\n",
+       "<polygon fill=\"none\" points=\"443,-46 443,-67 486,-67 486,-46 443,-46\" stroke=\"#000000\"/>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"461\" y=\"-52.8\">1</text>\n",
        "<polygon fill=\"#ffff00\" points=\"486,-46 486,-67 506,-67 506,-46 486,-46\" stroke=\"transparent\"/>\n",
        "<polygon fill=\"none\" points=\"486,-46 486,-67 506,-67 506,-46 486,-46\" stroke=\"#000000\"/>\n",
        "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"492.5\" y=\"-52.8\">0</text>\n",
        "<polygon fill=\"none\" points=\"137,-25 137,-46 198,-46 198,-25 137,-25\" stroke=\"#000000\"/>\n",
        "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"140\" y=\"-31.8\">next_succ</text>\n",
-       "<polygon fill=\"#00ffff\" points=\"198,-25 198,-46 225,-46 225,-25 198,-25\" stroke=\"transparent\"/>\n",
-       "<polygon fill=\"none\" points=\"198,-25 198,-46 225,-46 225,-25 198,-25\" stroke=\"#000000\"/>\n",
-       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"208\" y=\"-31.8\">2</text>\n",
-       "<polygon fill=\"#00ffff\" points=\"225,-25 225,-46 268,-46 268,-25 225,-25\" stroke=\"transparent\"/>\n",
-       "<polygon fill=\"none\" points=\"225,-25 225,-46 268,-46 268,-25 225,-25\" stroke=\"#000000\"/>\n",
-       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"243\" y=\"-31.8\">3</text>\n",
+       "<polygon fill=\"#00ffff\" points=\"198,-25 198,-46 241,-46 241,-25 198,-25\" stroke=\"transparent\"/>\n",
+       "<polygon fill=\"none\" points=\"198,-25 198,-46 241,-46 241,-25 198,-25\" stroke=\"#000000\"/>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"216\" y=\"-31.8\">2</text>\n",
+       "<polygon fill=\"#00ffff\" points=\"241,-25 241,-46 268,-46 268,-25 241,-25\" stroke=\"transparent\"/>\n",
+       "<polygon fill=\"none\" points=\"241,-25 241,-46 268,-46 268,-25 241,-25\" stroke=\"#000000\"/>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"251\" y=\"-31.8\">3</text>\n",
        "<polygon fill=\"none\" points=\"268,-25 268,-46 315,-46 315,-25 268,-25\" stroke=\"#000000\"/>\n",
        "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"288\" y=\"-31.8\">0</text>\n",
        "<polygon fill=\"#00ffff\" points=\"315,-25 315,-46 353,-46 353,-25 315,-25\" stroke=\"transparent\"/>\n",
@@ -1468,21 +1460,21 @@
        "<polygon fill=\"#00ffff\" points=\"353,-25 353,-46 396,-46 396,-25 353,-25\" stroke=\"transparent\"/>\n",
        "<polygon fill=\"none\" points=\"353,-25 353,-46 396,-46 396,-25 353,-25\" stroke=\"#000000\"/>\n",
        "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"371\" y=\"-31.8\">6</text>\n",
-       "<polygon fill=\"#00ffff\" points=\"396,-25 396,-46 439,-46 439,-25 396,-25\" stroke=\"transparent\"/>\n",
-       "<polygon fill=\"none\" points=\"396,-25 396,-46 439,-46 439,-25 396,-25\" stroke=\"#000000\"/>\n",
-       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"414\" y=\"-31.8\">7</text>\n",
-       "<polygon fill=\"none\" points=\"439,-25 439,-46 486,-46 486,-25 439,-25\" stroke=\"#000000\"/>\n",
-       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"459\" y=\"-31.8\">0</text>\n",
+       "<polygon fill=\"#00ffff\" points=\"396,-25 396,-46 443,-46 443,-25 396,-25\" stroke=\"transparent\"/>\n",
+       "<polygon fill=\"none\" points=\"396,-25 396,-46 443,-46 443,-25 396,-25\" stroke=\"#000000\"/>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"416\" y=\"-31.8\">7</text>\n",
+       "<polygon fill=\"none\" points=\"443,-25 443,-46 486,-46 486,-25 443,-25\" stroke=\"#000000\"/>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"461\" y=\"-31.8\">0</text>\n",
        "<polygon fill=\"none\" points=\"486,-25 486,-46 506,-46 506,-25 486,-25\" stroke=\"#000000\"/>\n",
        "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"492.5\" y=\"-31.8\">0</text>\n",
        "<polygon fill=\"none\" points=\"137,-4 137,-25 198,-25 198,-4 137,-4\" stroke=\"#000000\"/>\n",
        "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"159.5\" y=\"-10.8\">src</text>\n",
-       "<polygon fill=\"#ffff00\" points=\"198,-4 198,-25 225,-25 225,-4 198,-4\" stroke=\"transparent\"/>\n",
-       "<polygon fill=\"none\" points=\"198,-4 198,-25 225,-25 225,-4 198,-4\" stroke=\"#000000\"/>\n",
-       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"208\" y=\"-10.8\">0</text>\n",
-       "<polygon fill=\"#ffff00\" points=\"225,-4 225,-25 268,-25 268,-4 225,-4\" stroke=\"transparent\"/>\n",
-       "<polygon fill=\"none\" points=\"225,-4 225,-25 268,-25 268,-4 225,-4\" stroke=\"#000000\"/>\n",
-       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"243\" y=\"-10.8\">0</text>\n",
+       "<polygon fill=\"#ffff00\" points=\"198,-4 198,-25 241,-25 241,-4 198,-4\" stroke=\"transparent\"/>\n",
+       "<polygon fill=\"none\" points=\"198,-4 198,-25 241,-25 241,-4 198,-4\" stroke=\"#000000\"/>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"216\" y=\"-10.8\">0</text>\n",
+       "<polygon fill=\"#ffff00\" points=\"241,-4 241,-25 268,-25 268,-4 241,-4\" stroke=\"transparent\"/>\n",
+       "<polygon fill=\"none\" points=\"241,-4 241,-25 268,-25 268,-4 241,-4\" stroke=\"#000000\"/>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"251\" y=\"-10.8\">0</text>\n",
        "<polygon fill=\"#ffff00\" points=\"268,-4 268,-25 315,-25 315,-4 268,-4\" stroke=\"transparent\"/>\n",
        "<polygon fill=\"none\" points=\"268,-4 268,-25 315,-25 315,-4 268,-4\" stroke=\"#000000\"/>\n",
        "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"288\" y=\"-10.8\">0</text>\n",
@@ -1492,12 +1484,12 @@
        "<polygon fill=\"#ffff00\" points=\"353,-4 353,-25 396,-25 396,-4 353,-4\" stroke=\"transparent\"/>\n",
        "<polygon fill=\"none\" points=\"353,-4 353,-25 396,-25 396,-4 353,-4\" stroke=\"#000000\"/>\n",
        "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"371\" y=\"-10.8\">1</text>\n",
-       "<polygon fill=\"#ffff00\" points=\"396,-4 396,-25 439,-25 439,-4 396,-4\" stroke=\"transparent\"/>\n",
-       "<polygon fill=\"none\" points=\"396,-4 396,-25 439,-25 439,-4 396,-4\" stroke=\"#000000\"/>\n",
-       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"414\" y=\"-10.8\">1</text>\n",
-       "<polygon fill=\"#ffff00\" points=\"439,-4 439,-25 486,-25 486,-4 439,-4\" stroke=\"transparent\"/>\n",
-       "<polygon fill=\"none\" points=\"439,-4 439,-25 486,-25 486,-4 439,-4\" stroke=\"#000000\"/>\n",
-       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"459\" y=\"-10.8\">1</text>\n",
+       "<polygon fill=\"#ffff00\" points=\"396,-4 396,-25 443,-25 443,-4 396,-4\" stroke=\"transparent\"/>\n",
+       "<polygon fill=\"none\" points=\"396,-4 396,-25 443,-25 443,-4 396,-4\" stroke=\"#000000\"/>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"416\" y=\"-10.8\">1</text>\n",
+       "<polygon fill=\"#ffff00\" points=\"443,-4 443,-25 486,-25 486,-4 443,-4\" stroke=\"transparent\"/>\n",
+       "<polygon fill=\"none\" points=\"443,-4 443,-25 486,-25 486,-4 443,-4\" stroke=\"#000000\"/>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"461\" y=\"-10.8\">1</text>\n",
        "<polygon fill=\"#ffff00\" points=\"486,-4 486,-25 506,-25 506,-4 486,-4\" stroke=\"transparent\"/>\n",
        "<polygon fill=\"none\" points=\"486,-4 486,-25 506,-25 506,-4 486,-4\" stroke=\"#000000\"/>\n",
        "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"492.5\" y=\"-10.8\">2</text>\n",
@@ -1550,16 +1542,16 @@
        "<!-- Generated by graphviz version 2.40.1 (20161225.0304)\n",
        " -->\n",
        "<!-- Pages: 1 -->\n",
-       "<svg width=\"279pt\" height=\"245pt\"\n",
-       " viewBox=\"0.00 0.00 278.50 245.40\" xmlns=\"http://www.w3.org/2000/svg\" xmlns:xlink=\"http://www.w3.org/1999/xlink\">\n",
-       "<g id=\"graph0\" class=\"graph\" transform=\"scale(1 1) rotate(0) translate(4 241.4001)\">\n",
-       "<polygon fill=\"#ffffff\" stroke=\"transparent\" points=\"-4,4 -4,-241.4001 274.5,-241.4001 274.5,4 -4,4\"/>\n",
-       "<text text-anchor=\"start\" x=\"83.25\" y=\"-223.2001\" font-family=\"Lato\" font-size=\"14.00\" fill=\"#000000\">Fin(</text>\n",
-       "<text text-anchor=\"start\" x=\"108.25\" y=\"-223.2001\" font-family=\"Lato\" font-size=\"14.00\" fill=\"#1f78b4\">⓿</text>\n",
-       "<text text-anchor=\"start\" x=\"124.25\" y=\"-223.2001\" font-family=\"Lato\" font-size=\"14.00\" fill=\"#000000\">) &amp; Inf(</text>\n",
-       "<text text-anchor=\"start\" x=\"167.25\" y=\"-223.2001\" font-family=\"Lato\" font-size=\"14.00\" fill=\"#ff4da0\">❶</text>\n",
-       "<text text-anchor=\"start\" x=\"183.25\" y=\"-223.2001\" font-family=\"Lato\" font-size=\"14.00\" fill=\"#000000\">)</text>\n",
-       "<text text-anchor=\"start\" x=\"106.25\" y=\"-209.2001\" font-family=\"Lato\" font-size=\"14.00\" fill=\"#000000\">[Rabin 1]</text>\n",
+       "<svg width=\"279pt\" height=\"247pt\"\n",
+       " viewBox=\"0.00 0.00 278.50 247.40\" xmlns=\"http://www.w3.org/2000/svg\" xmlns:xlink=\"http://www.w3.org/1999/xlink\">\n",
+       "<g id=\"graph0\" class=\"graph\" transform=\"scale(1 1) rotate(0) translate(4 243.4001)\">\n",
+       "<polygon fill=\"#ffffff\" stroke=\"transparent\" points=\"-4,4 -4,-243.4001 274.5,-243.4001 274.5,4 -4,4\"/>\n",
+       "<text text-anchor=\"start\" x=\"83.25\" y=\"-225.2001\" font-family=\"Lato\" font-size=\"14.00\" fill=\"#000000\">Fin(</text>\n",
+       "<text text-anchor=\"start\" x=\"108.25\" y=\"-225.2001\" font-family=\"Lato\" font-size=\"14.00\" fill=\"#1f78b4\">⓿</text>\n",
+       "<text text-anchor=\"start\" x=\"124.25\" y=\"-225.2001\" font-family=\"Lato\" font-size=\"14.00\" fill=\"#000000\">) &amp; Inf(</text>\n",
+       "<text text-anchor=\"start\" x=\"167.25\" y=\"-225.2001\" font-family=\"Lato\" font-size=\"14.00\" fill=\"#ff4da0\">❶</text>\n",
+       "<text text-anchor=\"start\" x=\"183.25\" y=\"-225.2001\" font-family=\"Lato\" font-size=\"14.00\" fill=\"#000000\">)</text>\n",
+       "<text text-anchor=\"start\" x=\"106.25\" y=\"-211.2001\" font-family=\"Lato\" font-size=\"14.00\" fill=\"#000000\">[Rabin 1]</text>\n",
        "<!-- I -->\n",
        "<!-- 2 -->\n",
        "<g id=\"node2\" class=\"node\">\n",
@@ -1591,17 +1583,16 @@
        "<title>0&#45;&gt;0</title>\n",
        "<path fill=\"none\" stroke=\"#000000\" d=\"M133.4047,-61.1818C132.7938,-70.7151 133.9922,-79.4001 137,-79.4001 139.2089,-79.4001 140.4419,-74.7162 140.6991,-68.4522\"/>\n",
        "<polygon fill=\"#000000\" stroke=\"#000000\" points=\"140.5953,-61.1818 143.845,-68.1361 140.6453,-64.6815 140.6954,-68.1811 140.6954,-68.1811 140.6954,-68.1811 140.6453,-64.6815 137.5457,-68.2262 140.5953,-61.1818 140.5953,-61.1818\"/>\n",
-       "<text text-anchor=\"start\" x=\"132.5\" y=\"-98.2001\" font-family=\"Lato\" font-size=\"14.00\" fill=\"#000000\">b</text>\n",
-       "<text text-anchor=\"start\" x=\"129\" y=\"-83.2001\" font-family=\"Lato\" font-size=\"14.00\" fill=\"#ff4da0\">❶</text>\n",
+       "<text text-anchor=\"start\" x=\"118.5\" y=\"-98.2001\" font-family=\"Lato\" font-size=\"14.00\" fill=\"#000000\">a &amp; !b</text>\n",
+       "<text text-anchor=\"start\" x=\"129\" y=\"-83.2001\" font-family=\"Lato\" font-size=\"14.00\" fill=\"#1f78b4\">⓿</text>\n",
        "</g>\n",
        "<!-- 0&#45;&gt;0 -->\n",
        "<g id=\"edge3\" class=\"edge\">\n",
        "<title>0&#45;&gt;0</title>\n",
        "<path fill=\"none\" stroke=\"#000000\" d=\"M131.494,-60.6491C127.5865,-81.8347 129.4219,-109.4001 137,-109.4001 143.7493,-109.4001 145.9433,-87.5349 143.582,-67.7852\"/>\n",
        "<polygon fill=\"#000000\" stroke=\"#000000\" points=\"142.506,-60.6491 146.6646,-67.1012 143.0279,-64.11 143.5498,-67.5709 143.5498,-67.5709 143.5498,-67.5709 143.0279,-64.11 140.435,-68.0406 142.506,-60.6491 142.506,-60.6491\"/>\n",
-       "<text text-anchor=\"start\" x=\"118.5\" y=\"-127.2001\" font-family=\"Lato\" font-size=\"14.00\" fill=\"#000000\">a &amp; !b</text>\n",
-       "<text text-anchor=\"start\" x=\"121\" y=\"-113.2001\" font-family=\"Lato\" font-size=\"14.00\" fill=\"#1f78b4\">⓿</text>\n",
-       "<text text-anchor=\"start\" x=\"137\" y=\"-113.2001\" font-family=\"Lato\" font-size=\"14.00\" fill=\"#ff4da0\">❶</text>\n",
+       "<text text-anchor=\"start\" x=\"132.5\" y=\"-128.2001\" font-family=\"Lato\" font-size=\"14.00\" fill=\"#000000\">b</text>\n",
+       "<text text-anchor=\"start\" x=\"129\" y=\"-113.2001\" font-family=\"Lato\" font-size=\"14.00\" fill=\"#ff4da0\">❶</text>\n",
        "</g>\n",
        "<!-- 1 -->\n",
        "<g id=\"node4\" class=\"node\">\n",
@@ -1637,32 +1628,31 @@
        "<title>1&#45;&gt;1</title>\n",
        "<path fill=\"none\" stroke=\"#000000\" d=\"M246.6444,-61.1818C246.0742,-70.7151 247.1927,-79.4001 250,-79.4001 252.0616,-79.4001 253.2124,-74.7162 253.4525,-68.4522\"/>\n",
        "<polygon fill=\"#000000\" stroke=\"#000000\" points=\"253.3556,-61.1818 256.5987,-68.1392 253.4023,-64.6815 253.449,-68.1812 253.449,-68.1812 253.449,-68.1812 253.4023,-64.6815 250.2993,-68.2233 253.3556,-61.1818 253.3556,-61.1818\"/>\n",
-       "<text text-anchor=\"start\" x=\"231.5\" y=\"-98.2001\" font-family=\"Lato\" font-size=\"14.00\" fill=\"#000000\">!a &amp; b</text>\n",
-       "<text text-anchor=\"start\" x=\"242\" y=\"-83.2001\" font-family=\"Lato\" font-size=\"14.00\" fill=\"#ff4da0\">❶</text>\n",
+       "<text text-anchor=\"start\" x=\"229.5\" y=\"-98.2001\" font-family=\"Lato\" font-size=\"14.00\" fill=\"#000000\">!a &amp; !b</text>\n",
+       "<text text-anchor=\"start\" x=\"242\" y=\"-83.2001\" font-family=\"Lato\" font-size=\"14.00\" fill=\"#1f78b4\">⓿</text>\n",
        "</g>\n",
        "<!-- 1&#45;&gt;1 -->\n",
        "<g id=\"edge8\" class=\"edge\">\n",
        "<title>1&#45;&gt;1</title>\n",
        "<path fill=\"none\" stroke=\"#000000\" d=\"M244.8051,-60.9773C241.2319,-82.1181 242.9635,-109.4001 250,-109.4001 256.2668,-109.4001 258.3258,-87.7597 256.177,-68.0908\"/>\n",
        "<polygon fill=\"#000000\" stroke=\"#000000\" points=\"255.1949,-60.9773 259.2727,-67.4807 255.6736,-64.4444 256.1523,-67.9115 256.1523,-67.9115 256.1523,-67.9115 255.6736,-64.4444 253.0319,-68.3423 255.1949,-60.9773 255.1949,-60.9773\"/>\n",
-       "<text text-anchor=\"start\" x=\"229.5\" y=\"-127.2001\" font-family=\"Lato\" font-size=\"14.00\" fill=\"#000000\">!a &amp; !b</text>\n",
-       "<text text-anchor=\"start\" x=\"234\" y=\"-113.2001\" font-family=\"Lato\" font-size=\"14.00\" fill=\"#1f78b4\">⓿</text>\n",
-       "<text text-anchor=\"start\" x=\"250\" y=\"-113.2001\" font-family=\"Lato\" font-size=\"14.00\" fill=\"#ff4da0\">❶</text>\n",
+       "<text text-anchor=\"start\" x=\"231.5\" y=\"-128.2001\" font-family=\"Lato\" font-size=\"14.00\" fill=\"#000000\">!a &amp; b</text>\n",
+       "<text text-anchor=\"start\" x=\"242\" y=\"-113.2001\" font-family=\"Lato\" font-size=\"14.00\" fill=\"#ff4da0\">❶</text>\n",
        "</g>\n",
        "<!-- 1&#45;&gt;1 -->\n",
        "<g id=\"edge9\" class=\"edge\">\n",
        "<title>1&#45;&gt;1</title>\n",
-       "<path fill=\"none\" stroke=\"#000000\" d=\"M243.7047,-60.5525C236.4719,-90.7438 238.5703,-137.4001 250,-137.4001 260.5814,-137.4001 263.1652,-97.4123 257.7515,-67.5211\"/>\n",
-       "<polygon fill=\"#000000\" stroke=\"#000000\" points=\"256.2953,-60.5525 260.8106,-66.7601 257.0112,-63.9785 257.7272,-67.4045 257.7272,-67.4045 257.7272,-67.4045 257.0112,-63.9785 254.6438,-68.0489 256.2953,-60.5525 256.2953,-60.5525\"/>\n",
-       "<text text-anchor=\"start\" x=\"245.5\" y=\"-155.2001\" font-family=\"Lato\" font-size=\"14.00\" fill=\"#000000\">1</text>\n",
-       "<text text-anchor=\"start\" x=\"234\" y=\"-141.2001\" font-family=\"Lato\" font-size=\"14.00\" fill=\"#1f78b4\">⓿</text>\n",
-       "<text text-anchor=\"start\" x=\"250\" y=\"-141.2001\" font-family=\"Lato\" font-size=\"14.00\" fill=\"#ff4da0\">❶</text>\n",
+       "<path fill=\"none\" stroke=\"#000000\" d=\"M243.7047,-60.73C236.4719,-91.4107 238.5703,-139.4001 250,-139.4001 260.5814,-139.4001 263.1652,-98.2698 257.7515,-67.8206\"/>\n",
+       "<polygon fill=\"#000000\" stroke=\"#000000\" points=\"256.2953,-60.73 260.7892,-66.9532 256.9994,-64.1585 257.7036,-67.5869 257.7036,-67.5869 257.7036,-67.5869 256.9994,-64.1585 254.618,-68.2206 256.2953,-60.73 256.2953,-60.73\"/>\n",
+       "<text text-anchor=\"start\" x=\"245.5\" y=\"-157.2001\" font-family=\"Lato\" font-size=\"14.00\" fill=\"#000000\">1</text>\n",
+       "<text text-anchor=\"start\" x=\"234\" y=\"-143.2001\" font-family=\"Lato\" font-size=\"14.00\" fill=\"#1f78b4\">⓿</text>\n",
+       "<text text-anchor=\"start\" x=\"250\" y=\"-143.2001\" font-family=\"Lato\" font-size=\"14.00\" fill=\"#ff4da0\">❶</text>\n",
        "</g>\n",
        "</g>\n",
        "</svg>\n"
       ],
       "text/plain": [
-       "<spot.twa_graph; proxy of <Swig Object of type 'std::shared_ptr< spot::twa_graph > *' at 0x7f616c1788a0> >"
+       "<spot.twa_graph; proxy of <Swig Object of type 'std::shared_ptr< spot::twa_graph > *' at 0x7f2950267b40> >"
       ]
      },
      "metadata": {},
@@ -1719,12 +1709,12 @@
        "<polygon fill=\"#00ffff\" points=\"167.5,-343 167.5,-364 228.5,-364 228.5,-343 167.5,-343\" stroke=\"transparent\"/>\n",
        "<polyline fill=\"none\" points=\"167.5,-343 228.5,-343 \" stroke=\"#000000\"/>\n",
        "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"182.5\" y=\"-349.8\">edges</text>\n",
-       "<polygon fill=\"#00ffff\" points=\"228.5,-343 228.5,-364 255.5,-364 255.5,-343 228.5,-343\" stroke=\"transparent\"/>\n",
-       "<polyline fill=\"none\" points=\"228.5,-343 255.5,-343 \" stroke=\"#000000\"/>\n",
-       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"238.5\" y=\"-349.8\">1</text>\n",
-       "<polygon fill=\"#00ffff\" points=\"255.5,-343 255.5,-364 298.5,-364 298.5,-343 255.5,-343\" stroke=\"transparent\"/>\n",
-       "<polyline fill=\"none\" points=\"255.5,-343 298.5,-343 \" stroke=\"#000000\"/>\n",
-       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"273.5\" y=\"-349.8\">2</text>\n",
+       "<polygon fill=\"#00ffff\" points=\"228.5,-343 228.5,-364 271.5,-364 271.5,-343 228.5,-343\" stroke=\"transparent\"/>\n",
+       "<polyline fill=\"none\" points=\"228.5,-343 271.5,-343 \" stroke=\"#000000\"/>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"246.5\" y=\"-349.8\">1</text>\n",
+       "<polygon fill=\"#00ffff\" points=\"271.5,-343 271.5,-364 298.5,-364 298.5,-343 271.5,-343\" stroke=\"transparent\"/>\n",
+       "<polyline fill=\"none\" points=\"271.5,-343 298.5,-343 \" stroke=\"#000000\"/>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"281.5\" y=\"-349.8\">2</text>\n",
        "<polygon fill=\"#00ffff\" points=\"298.5,-343 298.5,-364 345.5,-364 345.5,-343 298.5,-343\" stroke=\"transparent\"/>\n",
        "<polyline fill=\"none\" points=\"298.5,-343 345.5,-343 \" stroke=\"#000000\"/>\n",
        "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"318.5\" y=\"-349.8\">3</text>\n",
@@ -1734,12 +1724,12 @@
        "<polygon fill=\"#00ffff\" points=\"383.5,-343 383.5,-364 426.5,-364 426.5,-343 383.5,-343\" stroke=\"transparent\"/>\n",
        "<polyline fill=\"none\" points=\"383.5,-343 426.5,-343 \" stroke=\"#000000\"/>\n",
        "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"401.5\" y=\"-349.8\">5</text>\n",
-       "<polygon fill=\"#00ffff\" points=\"426.5,-343 426.5,-364 469.5,-364 469.5,-343 426.5,-343\" stroke=\"transparent\"/>\n",
-       "<polyline fill=\"none\" points=\"426.5,-343 469.5,-343 \" stroke=\"#000000\"/>\n",
-       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"444.5\" y=\"-349.8\">6</text>\n",
-       "<polygon fill=\"#00ffff\" points=\"469.5,-343 469.5,-364 516.5,-364 516.5,-343 469.5,-343\" stroke=\"transparent\"/>\n",
-       "<polyline fill=\"none\" points=\"469.5,-343 516.5,-343 \" stroke=\"#000000\"/>\n",
-       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"489.5\" y=\"-349.8\">7</text>\n",
+       "<polygon fill=\"#00ffff\" points=\"426.5,-343 426.5,-364 473.5,-364 473.5,-343 426.5,-343\" stroke=\"transparent\"/>\n",
+       "<polyline fill=\"none\" points=\"426.5,-343 473.5,-343 \" stroke=\"#000000\"/>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"446.5\" y=\"-349.8\">6</text>\n",
+       "<polygon fill=\"#00ffff\" points=\"473.5,-343 473.5,-364 516.5,-364 516.5,-343 473.5,-343\" stroke=\"transparent\"/>\n",
+       "<polyline fill=\"none\" points=\"473.5,-343 516.5,-343 \" stroke=\"#000000\"/>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"491.5\" y=\"-349.8\">7</text>\n",
        "<polygon fill=\"#00ffff\" points=\"516.5,-343 516.5,-364 536.5,-364 536.5,-343 516.5,-343\" stroke=\"transparent\"/>\n",
        "<polyline fill=\"none\" points=\"516.5,-343 536.5,-343 \" stroke=\"#000000\"/>\n",
        "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"523\" y=\"-349.8\">8</text>\n",
@@ -1748,52 +1738,52 @@
        "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"551.5\" y=\"-349.8\">9</text>\n",
        "<polygon fill=\"none\" points=\"167.5,-322 167.5,-343 228.5,-343 228.5,-322 167.5,-322\" stroke=\"#000000\"/>\n",
        "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"184.5\" y=\"-328.8\">cond</text>\n",
-       "<polygon fill=\"none\" points=\"228.5,-322 228.5,-343 255.5,-343 255.5,-322 228.5,-322\" stroke=\"#000000\"/>\n",
-       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"238.5\" y=\"-328.8\">b</text>\n",
-       "<polygon fill=\"none\" points=\"255.5,-322 255.5,-343 298.5,-343 298.5,-322 255.5,-322\" stroke=\"#000000\"/>\n",
-       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"258.5\" y=\"-328.8\">a &amp; !b</text>\n",
+       "<polygon fill=\"none\" points=\"228.5,-322 228.5,-343 271.5,-343 271.5,-322 228.5,-322\" stroke=\"#000000\"/>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"231.5\" y=\"-328.8\">a &amp; !b</text>\n",
+       "<polygon fill=\"none\" points=\"271.5,-322 271.5,-343 298.5,-343 298.5,-322 271.5,-322\" stroke=\"#000000\"/>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"281.5\" y=\"-328.8\">b</text>\n",
        "<polygon fill=\"none\" points=\"298.5,-322 298.5,-343 345.5,-343 345.5,-322 298.5,-322\" stroke=\"#000000\"/>\n",
        "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"301.5\" y=\"-328.8\">!a &amp; !b</text>\n",
        "<polygon fill=\"none\" points=\"345.5,-322 345.5,-343 383.5,-343 383.5,-322 345.5,-322\" stroke=\"#000000\"/>\n",
        "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"348.5\" y=\"-328.8\">a &amp; b</text>\n",
        "<polygon fill=\"none\" points=\"383.5,-322 383.5,-343 426.5,-343 426.5,-322 383.5,-322\" stroke=\"#000000\"/>\n",
        "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"386.5\" y=\"-328.8\">a &amp; !b</text>\n",
-       "<polygon fill=\"none\" points=\"426.5,-322 426.5,-343 469.5,-343 469.5,-322 426.5,-322\" stroke=\"#000000\"/>\n",
-       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"429.5\" y=\"-328.8\">!a &amp; b</text>\n",
-       "<polygon fill=\"none\" points=\"469.5,-322 469.5,-343 516.5,-343 516.5,-322 469.5,-322\" stroke=\"#000000\"/>\n",
-       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"472.5\" y=\"-328.8\">!a &amp; !b</text>\n",
+       "<polygon fill=\"none\" points=\"426.5,-322 426.5,-343 473.5,-343 473.5,-322 426.5,-322\" stroke=\"#000000\"/>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"429.5\" y=\"-328.8\">!a &amp; !b</text>\n",
+       "<polygon fill=\"none\" points=\"473.5,-322 473.5,-343 516.5,-343 516.5,-322 473.5,-322\" stroke=\"#000000\"/>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"476.5\" y=\"-328.8\">!a &amp; b</text>\n",
        "<polygon fill=\"none\" points=\"516.5,-322 516.5,-343 536.5,-343 536.5,-322 516.5,-322\" stroke=\"#000000\"/>\n",
        "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"523\" y=\"-328.8\">1</text>\n",
        "<polygon fill=\"none\" points=\"536.5,-322 536.5,-343 573.5,-343 573.5,-322 536.5,-322\" stroke=\"#000000\"/>\n",
        "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"551.5\" y=\"-328.8\">1</text>\n",
        "<polygon fill=\"none\" points=\"167.5,-301 167.5,-322 228.5,-322 228.5,-301 167.5,-301\" stroke=\"#000000\"/>\n",
        "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"188.5\" y=\"-307.8\">acc</text>\n",
-       "<polygon fill=\"none\" points=\"228.5,-301 228.5,-322 255.5,-322 255.5,-301 228.5,-301\" stroke=\"#000000\"/>\n",
-       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"231.5\" y=\"-307.8\">{1}</text>\n",
-       "<polygon fill=\"none\" points=\"255.5,-301 255.5,-322 298.5,-322 298.5,-301 255.5,-301\" stroke=\"#000000\"/>\n",
-       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"261.5\" y=\"-307.8\">{0,1}</text>\n",
+       "<polygon fill=\"none\" points=\"228.5,-301 228.5,-322 271.5,-322 271.5,-301 228.5,-301\" stroke=\"#000000\"/>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"239.5\" y=\"-307.8\">{0}</text>\n",
+       "<polygon fill=\"none\" points=\"271.5,-301 271.5,-322 298.5,-322 298.5,-301 271.5,-301\" stroke=\"#000000\"/>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"274.5\" y=\"-307.8\">{1}</text>\n",
        "<polygon fill=\"none\" points=\"298.5,-301 298.5,-322 345.5,-322 345.5,-301 298.5,-301\" stroke=\"#000000\"/>\n",
        "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"311.5\" y=\"-307.8\">{0}</text>\n",
        "<polygon fill=\"none\" points=\"345.5,-301 345.5,-322 383.5,-322 383.5,-301 345.5,-301\" stroke=\"#000000\"/>\n",
        "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"357.5\" y=\"-307.8\">{}</text>\n",
        "<polygon fill=\"none\" points=\"383.5,-301 383.5,-322 426.5,-322 426.5,-301 383.5,-301\" stroke=\"#000000\"/>\n",
        "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"394.5\" y=\"-307.8\">{0}</text>\n",
-       "<polygon fill=\"none\" points=\"426.5,-301 426.5,-322 469.5,-322 469.5,-301 426.5,-301\" stroke=\"#000000\"/>\n",
-       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"437.5\" y=\"-307.8\">{1}</text>\n",
-       "<polygon fill=\"none\" points=\"469.5,-301 469.5,-322 516.5,-322 516.5,-301 469.5,-301\" stroke=\"#000000\"/>\n",
-       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"477.5\" y=\"-307.8\">{0,1}</text>\n",
+       "<polygon fill=\"none\" points=\"426.5,-301 426.5,-322 473.5,-322 473.5,-301 426.5,-301\" stroke=\"#000000\"/>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"439.5\" y=\"-307.8\">{0}</text>\n",
+       "<polygon fill=\"none\" points=\"473.5,-301 473.5,-322 516.5,-322 516.5,-301 473.5,-301\" stroke=\"#000000\"/>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"484.5\" y=\"-307.8\">{1}</text>\n",
        "<polygon fill=\"none\" points=\"516.5,-301 516.5,-322 536.5,-322 536.5,-301 516.5,-301\" stroke=\"#000000\"/>\n",
        "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"519.5\" y=\"-307.8\">{}</text>\n",
        "<polygon fill=\"none\" points=\"536.5,-301 536.5,-322 573.5,-322 573.5,-301 536.5,-301\" stroke=\"#000000\"/>\n",
        "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"539.5\" y=\"-307.8\">{0,1}</text>\n",
        "<polygon fill=\"none\" points=\"167.5,-280 167.5,-301 228.5,-301 228.5,-280 167.5,-280\" stroke=\"#000000\"/>\n",
        "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"190\" y=\"-286.8\">dst</text>\n",
-       "<polygon fill=\"#ffff00\" points=\"228.5,-280 228.5,-301 255.5,-301 255.5,-280 228.5,-280\" stroke=\"transparent\"/>\n",
-       "<polygon fill=\"none\" points=\"228.5,-280 228.5,-301 255.5,-301 255.5,-280 228.5,-280\" stroke=\"#000000\"/>\n",
-       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"238.5\" y=\"-286.8\">0</text>\n",
-       "<polygon fill=\"#ffff00\" points=\"255.5,-280 255.5,-301 298.5,-301 298.5,-280 255.5,-280\" stroke=\"transparent\"/>\n",
-       "<polygon fill=\"none\" points=\"255.5,-280 255.5,-301 298.5,-301 298.5,-280 255.5,-280\" stroke=\"#000000\"/>\n",
-       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"273.5\" y=\"-286.8\">0</text>\n",
+       "<polygon fill=\"#ffff00\" points=\"228.5,-280 228.5,-301 271.5,-301 271.5,-280 228.5,-280\" stroke=\"transparent\"/>\n",
+       "<polygon fill=\"none\" points=\"228.5,-280 228.5,-301 271.5,-301 271.5,-280 228.5,-280\" stroke=\"#000000\"/>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"246.5\" y=\"-286.8\">0</text>\n",
+       "<polygon fill=\"#ffff00\" points=\"271.5,-280 271.5,-301 298.5,-301 298.5,-280 271.5,-280\" stroke=\"transparent\"/>\n",
+       "<polygon fill=\"none\" points=\"271.5,-280 271.5,-301 298.5,-301 298.5,-280 271.5,-280\" stroke=\"#000000\"/>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"281.5\" y=\"-286.8\">0</text>\n",
        "<polygon fill=\"#ffff00\" points=\"298.5,-280 298.5,-301 345.5,-301 345.5,-280 298.5,-280\" stroke=\"transparent\"/>\n",
        "<polygon fill=\"none\" points=\"298.5,-280 298.5,-301 345.5,-301 345.5,-280 298.5,-280\" stroke=\"#000000\"/>\n",
        "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"318.5\" y=\"-286.8\">1</text>\n",
@@ -1803,12 +1793,12 @@
        "<polygon fill=\"#ffff00\" points=\"383.5,-280 383.5,-301 426.5,-301 426.5,-280 383.5,-280\" stroke=\"transparent\"/>\n",
        "<polygon fill=\"none\" points=\"383.5,-280 383.5,-301 426.5,-301 426.5,-280 383.5,-280\" stroke=\"#000000\"/>\n",
        "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"401.5\" y=\"-286.8\">0</text>\n",
-       "<polygon fill=\"#ffff00\" points=\"426.5,-280 426.5,-301 469.5,-301 469.5,-280 426.5,-280\" stroke=\"transparent\"/>\n",
-       "<polygon fill=\"none\" points=\"426.5,-280 426.5,-301 469.5,-301 469.5,-280 426.5,-280\" stroke=\"#000000\"/>\n",
-       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"444.5\" y=\"-286.8\">1</text>\n",
-       "<polygon fill=\"#ffff00\" points=\"469.5,-280 469.5,-301 516.5,-301 516.5,-280 469.5,-280\" stroke=\"transparent\"/>\n",
-       "<polygon fill=\"none\" points=\"469.5,-280 469.5,-301 516.5,-301 516.5,-280 469.5,-280\" stroke=\"#000000\"/>\n",
-       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"489.5\" y=\"-286.8\">1</text>\n",
+       "<polygon fill=\"#ffff00\" points=\"426.5,-280 426.5,-301 473.5,-301 473.5,-280 426.5,-280\" stroke=\"transparent\"/>\n",
+       "<polygon fill=\"none\" points=\"426.5,-280 426.5,-301 473.5,-301 473.5,-280 426.5,-280\" stroke=\"#000000\"/>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"446.5\" y=\"-286.8\">1</text>\n",
+       "<polygon fill=\"#ffff00\" points=\"473.5,-280 473.5,-301 516.5,-301 516.5,-280 473.5,-280\" stroke=\"transparent\"/>\n",
+       "<polygon fill=\"none\" points=\"473.5,-280 473.5,-301 516.5,-301 516.5,-280 473.5,-280\" stroke=\"#000000\"/>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"491.5\" y=\"-286.8\">1</text>\n",
        "<polygon fill=\"#ffff00\" points=\"516.5,-280 516.5,-301 536.5,-301 536.5,-280 516.5,-280\" stroke=\"transparent\"/>\n",
        "<polygon fill=\"none\" points=\"516.5,-280 516.5,-301 536.5,-301 536.5,-280 516.5,-280\" stroke=\"#000000\"/>\n",
        "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"523\" y=\"-286.8\">0</text>\n",
@@ -1817,12 +1807,12 @@
        "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"551.5\" y=\"-286.8\">1</text>\n",
        "<polygon fill=\"none\" points=\"167.5,-259 167.5,-280 228.5,-280 228.5,-259 167.5,-259\" stroke=\"#000000\"/>\n",
        "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"170.5\" y=\"-265.8\">next_succ</text>\n",
-       "<polygon fill=\"#00ffff\" points=\"228.5,-259 228.5,-280 255.5,-280 255.5,-259 228.5,-259\" stroke=\"transparent\"/>\n",
-       "<polygon fill=\"none\" points=\"228.5,-259 228.5,-280 255.5,-280 255.5,-259 228.5,-259\" stroke=\"#000000\"/>\n",
-       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"238.5\" y=\"-265.8\">2</text>\n",
-       "<polygon fill=\"#00ffff\" points=\"255.5,-259 255.5,-280 298.5,-280 298.5,-259 255.5,-259\" stroke=\"transparent\"/>\n",
-       "<polygon fill=\"none\" points=\"255.5,-259 255.5,-280 298.5,-280 298.5,-259 255.5,-259\" stroke=\"#000000\"/>\n",
-       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"273.5\" y=\"-265.8\">3</text>\n",
+       "<polygon fill=\"#00ffff\" points=\"228.5,-259 228.5,-280 271.5,-280 271.5,-259 228.5,-259\" stroke=\"transparent\"/>\n",
+       "<polygon fill=\"none\" points=\"228.5,-259 228.5,-280 271.5,-280 271.5,-259 228.5,-259\" stroke=\"#000000\"/>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"246.5\" y=\"-265.8\">2</text>\n",
+       "<polygon fill=\"#00ffff\" points=\"271.5,-259 271.5,-280 298.5,-280 298.5,-259 271.5,-259\" stroke=\"transparent\"/>\n",
+       "<polygon fill=\"none\" points=\"271.5,-259 271.5,-280 298.5,-280 298.5,-259 271.5,-259\" stroke=\"#000000\"/>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"281.5\" y=\"-265.8\">3</text>\n",
        "<polygon fill=\"none\" points=\"298.5,-259 298.5,-280 345.5,-280 345.5,-259 298.5,-259\" stroke=\"#000000\"/>\n",
        "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"318.5\" y=\"-265.8\">0</text>\n",
        "<polygon fill=\"#00ffff\" points=\"345.5,-259 345.5,-280 383.5,-280 383.5,-259 345.5,-259\" stroke=\"transparent\"/>\n",
@@ -1831,24 +1821,24 @@
        "<polygon fill=\"#00ffff\" points=\"383.5,-259 383.5,-280 426.5,-280 426.5,-259 383.5,-259\" stroke=\"transparent\"/>\n",
        "<polygon fill=\"none\" points=\"383.5,-259 383.5,-280 426.5,-280 426.5,-259 383.5,-259\" stroke=\"#000000\"/>\n",
        "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"401.5\" y=\"-265.8\">6</text>\n",
-       "<polygon fill=\"#00ffff\" points=\"426.5,-259 426.5,-280 469.5,-280 469.5,-259 426.5,-259\" stroke=\"transparent\"/>\n",
-       "<polygon fill=\"none\" points=\"426.5,-259 426.5,-280 469.5,-280 469.5,-259 426.5,-259\" stroke=\"#000000\"/>\n",
-       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"444.5\" y=\"-265.8\">7</text>\n",
-       "<polygon fill=\"#00ffff\" points=\"469.5,-259 469.5,-280 516.5,-280 516.5,-259 469.5,-259\" stroke=\"transparent\"/>\n",
-       "<polygon fill=\"none\" points=\"469.5,-259 469.5,-280 516.5,-280 516.5,-259 469.5,-259\" stroke=\"#000000\"/>\n",
-       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"489.5\" y=\"-265.8\">9</text>\n",
+       "<polygon fill=\"#00ffff\" points=\"426.5,-259 426.5,-280 473.5,-280 473.5,-259 426.5,-259\" stroke=\"transparent\"/>\n",
+       "<polygon fill=\"none\" points=\"426.5,-259 426.5,-280 473.5,-280 473.5,-259 426.5,-259\" stroke=\"#000000\"/>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"446.5\" y=\"-265.8\">7</text>\n",
+       "<polygon fill=\"#00ffff\" points=\"473.5,-259 473.5,-280 516.5,-280 516.5,-259 473.5,-259\" stroke=\"transparent\"/>\n",
+       "<polygon fill=\"none\" points=\"473.5,-259 473.5,-280 516.5,-280 516.5,-259 473.5,-259\" stroke=\"#000000\"/>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"491.5\" y=\"-265.8\">9</text>\n",
        "<polygon fill=\"none\" points=\"516.5,-259 516.5,-280 536.5,-280 536.5,-259 516.5,-259\" stroke=\"#000000\"/>\n",
        "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"523\" y=\"-265.8\">0</text>\n",
        "<polygon fill=\"none\" points=\"536.5,-259 536.5,-280 573.5,-280 573.5,-259 536.5,-259\" stroke=\"#000000\"/>\n",
        "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"551.5\" y=\"-265.8\">0</text>\n",
        "<polygon fill=\"none\" points=\"167.5,-238 167.5,-259 228.5,-259 228.5,-238 167.5,-238\" stroke=\"#000000\"/>\n",
        "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"190\" y=\"-244.8\">src</text>\n",
-       "<polygon fill=\"#ffff00\" points=\"228.5,-238 228.5,-259 255.5,-259 255.5,-238 228.5,-238\" stroke=\"transparent\"/>\n",
-       "<polygon fill=\"none\" points=\"228.5,-238 228.5,-259 255.5,-259 255.5,-238 228.5,-238\" stroke=\"#000000\"/>\n",
-       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"238.5\" y=\"-244.8\">0</text>\n",
-       "<polygon fill=\"#ffff00\" points=\"255.5,-238 255.5,-259 298.5,-259 298.5,-238 255.5,-238\" stroke=\"transparent\"/>\n",
-       "<polygon fill=\"none\" points=\"255.5,-238 255.5,-259 298.5,-259 298.5,-238 255.5,-238\" stroke=\"#000000\"/>\n",
-       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"273.5\" y=\"-244.8\">0</text>\n",
+       "<polygon fill=\"#ffff00\" points=\"228.5,-238 228.5,-259 271.5,-259 271.5,-238 228.5,-238\" stroke=\"transparent\"/>\n",
+       "<polygon fill=\"none\" points=\"228.5,-238 228.5,-259 271.5,-259 271.5,-238 228.5,-238\" stroke=\"#000000\"/>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"246.5\" y=\"-244.8\">0</text>\n",
+       "<polygon fill=\"#ffff00\" points=\"271.5,-238 271.5,-259 298.5,-259 298.5,-238 271.5,-238\" stroke=\"transparent\"/>\n",
+       "<polygon fill=\"none\" points=\"271.5,-238 271.5,-259 298.5,-259 298.5,-238 271.5,-238\" stroke=\"#000000\"/>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"281.5\" y=\"-244.8\">0</text>\n",
        "<polygon fill=\"#ffff00\" points=\"298.5,-238 298.5,-259 345.5,-259 345.5,-238 298.5,-238\" stroke=\"transparent\"/>\n",
        "<polygon fill=\"none\" points=\"298.5,-238 298.5,-259 345.5,-259 345.5,-238 298.5,-238\" stroke=\"#000000\"/>\n",
        "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"318.5\" y=\"-244.8\">0</text>\n",
@@ -1858,12 +1848,12 @@
        "<polygon fill=\"#ffff00\" points=\"383.5,-238 383.5,-259 426.5,-259 426.5,-238 383.5,-238\" stroke=\"transparent\"/>\n",
        "<polygon fill=\"none\" points=\"383.5,-238 383.5,-259 426.5,-259 426.5,-238 383.5,-238\" stroke=\"#000000\"/>\n",
        "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"401.5\" y=\"-244.8\">1</text>\n",
-       "<polygon fill=\"#ffff00\" points=\"426.5,-238 426.5,-259 469.5,-259 469.5,-238 426.5,-238\" stroke=\"transparent\"/>\n",
-       "<polygon fill=\"none\" points=\"426.5,-238 426.5,-259 469.5,-259 469.5,-238 426.5,-238\" stroke=\"#000000\"/>\n",
-       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"444.5\" y=\"-244.8\">1</text>\n",
-       "<polygon fill=\"#ffff00\" points=\"469.5,-238 469.5,-259 516.5,-259 516.5,-238 469.5,-238\" stroke=\"transparent\"/>\n",
-       "<polygon fill=\"none\" points=\"469.5,-238 469.5,-259 516.5,-259 516.5,-238 469.5,-238\" stroke=\"#000000\"/>\n",
-       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"489.5\" y=\"-244.8\">1</text>\n",
+       "<polygon fill=\"#ffff00\" points=\"426.5,-238 426.5,-259 473.5,-259 473.5,-238 426.5,-238\" stroke=\"transparent\"/>\n",
+       "<polygon fill=\"none\" points=\"426.5,-238 426.5,-259 473.5,-259 473.5,-238 426.5,-238\" stroke=\"#000000\"/>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"446.5\" y=\"-244.8\">1</text>\n",
+       "<polygon fill=\"#ffff00\" points=\"473.5,-238 473.5,-259 516.5,-259 516.5,-238 473.5,-238\" stroke=\"transparent\"/>\n",
+       "<polygon fill=\"none\" points=\"473.5,-238 473.5,-259 516.5,-259 516.5,-238 473.5,-238\" stroke=\"#000000\"/>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"491.5\" y=\"-244.8\">1</text>\n",
        "<polygon fill=\"#ffff00\" points=\"516.5,-238 516.5,-259 536.5,-259 536.5,-238 516.5,-238\" stroke=\"transparent\"/>\n",
        "<polygon fill=\"none\" points=\"516.5,-238 516.5,-259 536.5,-259 536.5,-238 516.5,-238\" stroke=\"#000000\"/>\n",
        "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"523\" y=\"-244.8\">2</text>\n",
@@ -2008,8 +1998,8 @@
      "name": "stdout",
      "output_type": "stream",
      "text": [
-      "pos=1, acc={1}, toerase=True\n",
-      "pos=2, acc={0,1}, toerase=True\n",
+      "pos=1, acc={0}, toerase=False\n",
+      "pos=2, acc={1}, toerase=True\n",
       "pos=3, acc={0}, toerase=False\n"
      ]
     }
@@ -2057,7 +2047,7 @@
        "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"23\" y=\"-62.8\">succ</text>\n",
        "<polygon fill=\"#00ffff\" points=\"63,-56 63,-77 76,-77 76,-56 63,-56\" stroke=\"transparent\"/>\n",
        "<polygon fill=\"none\" points=\"63,-56 63,-77 76,-77 76,-56 63,-56\" stroke=\"#000000\"/>\n",
-       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"66\" y=\"-62.8\">3</text>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"66\" y=\"-62.8\">1</text>\n",
        "<polygon fill=\"#00ffff\" points=\"76,-56 76,-77 89,-77 89,-56 76,-56\" stroke=\"transparent\"/>\n",
        "<polygon fill=\"none\" points=\"76,-56 76,-77 89,-77 89,-56 76,-56\" stroke=\"#000000\"/>\n",
        "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"79\" y=\"-62.8\">4</text>\n",
@@ -2082,12 +2072,12 @@
        "<polygon fill=\"#00ffff\" points=\"136,-109 136,-130 197,-130 197,-109 136,-109\" stroke=\"transparent\"/>\n",
        "<polyline fill=\"none\" points=\"136,-109 197,-109 \" stroke=\"#000000\"/>\n",
        "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"151\" y=\"-115.8\">edges</text>\n",
-       "<polygon fill=\"#c0c0c0\" points=\"197,-109 197,-130 224,-130 224,-109 197,-109\" stroke=\"transparent\"/>\n",
-       "<polyline fill=\"none\" points=\"197,-109 224,-109 \" stroke=\"#000000\"/>\n",
-       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"207\" y=\"-115.8\">1</text>\n",
-       "<polygon fill=\"#c0c0c0\" points=\"224,-109 224,-130 267,-130 267,-109 224,-109\" stroke=\"transparent\"/>\n",
-       "<polyline fill=\"none\" points=\"224,-109 267,-109 \" stroke=\"#000000\"/>\n",
-       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"242\" y=\"-115.8\">2</text>\n",
+       "<polygon fill=\"#00ffff\" points=\"197,-109 197,-130 240,-130 240,-109 197,-109\" stroke=\"transparent\"/>\n",
+       "<polyline fill=\"none\" points=\"197,-109 240,-109 \" stroke=\"#000000\"/>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"215\" y=\"-115.8\">1</text>\n",
+       "<polygon fill=\"#c0c0c0\" points=\"240,-109 240,-130 267,-130 267,-109 240,-109\" stroke=\"transparent\"/>\n",
+       "<polyline fill=\"none\" points=\"240,-109 267,-109 \" stroke=\"#000000\"/>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"250\" y=\"-115.8\">2</text>\n",
        "<polygon fill=\"#00ffff\" points=\"267,-109 267,-130 314,-130 314,-109 267,-109\" stroke=\"transparent\"/>\n",
        "<polyline fill=\"none\" points=\"267,-109 314,-109 \" stroke=\"#000000\"/>\n",
        "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"287\" y=\"-115.8\">3</text>\n",
@@ -2097,12 +2087,12 @@
        "<polygon fill=\"#00ffff\" points=\"352,-109 352,-130 395,-130 395,-109 352,-109\" stroke=\"transparent\"/>\n",
        "<polyline fill=\"none\" points=\"352,-109 395,-109 \" stroke=\"#000000\"/>\n",
        "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"370\" y=\"-115.8\">5</text>\n",
-       "<polygon fill=\"#00ffff\" points=\"395,-109 395,-130 438,-130 438,-109 395,-109\" stroke=\"transparent\"/>\n",
-       "<polyline fill=\"none\" points=\"395,-109 438,-109 \" stroke=\"#000000\"/>\n",
-       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"413\" y=\"-115.8\">6</text>\n",
-       "<polygon fill=\"#00ffff\" points=\"438,-109 438,-130 485,-130 485,-109 438,-109\" stroke=\"transparent\"/>\n",
-       "<polyline fill=\"none\" points=\"438,-109 485,-109 \" stroke=\"#000000\"/>\n",
-       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"458\" y=\"-115.8\">7</text>\n",
+       "<polygon fill=\"#00ffff\" points=\"395,-109 395,-130 442,-130 442,-109 395,-109\" stroke=\"transparent\"/>\n",
+       "<polyline fill=\"none\" points=\"395,-109 442,-109 \" stroke=\"#000000\"/>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"415\" y=\"-115.8\">6</text>\n",
+       "<polygon fill=\"#00ffff\" points=\"442,-109 442,-130 485,-130 485,-109 442,-109\" stroke=\"transparent\"/>\n",
+       "<polyline fill=\"none\" points=\"442,-109 485,-109 \" stroke=\"#000000\"/>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"460\" y=\"-115.8\">7</text>\n",
        "<polygon fill=\"#00ffff\" points=\"485,-109 485,-130 505,-130 505,-109 485,-109\" stroke=\"transparent\"/>\n",
        "<polyline fill=\"none\" points=\"485,-109 505,-109 \" stroke=\"#000000\"/>\n",
        "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"491.5\" y=\"-115.8\">8</text>\n",
@@ -2111,52 +2101,52 @@
        "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"520\" y=\"-115.8\">9</text>\n",
        "<polygon fill=\"none\" points=\"136,-88 136,-109 197,-109 197,-88 136,-88\" stroke=\"#000000\"/>\n",
        "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"153\" y=\"-94.8\">cond</text>\n",
-       "<polygon fill=\"none\" points=\"197,-88 197,-109 224,-109 224,-88 197,-88\" stroke=\"#000000\"/>\n",
-       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"207\" y=\"-94.8\">b</text>\n",
-       "<polygon fill=\"none\" points=\"224,-88 224,-109 267,-109 267,-88 224,-88\" stroke=\"#000000\"/>\n",
-       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"227\" y=\"-94.8\">a &amp; !b</text>\n",
+       "<polygon fill=\"none\" points=\"197,-88 197,-109 240,-109 240,-88 197,-88\" stroke=\"#000000\"/>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"200\" y=\"-94.8\">a &amp; !b</text>\n",
+       "<polygon fill=\"none\" points=\"240,-88 240,-109 267,-109 267,-88 240,-88\" stroke=\"#000000\"/>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"250\" y=\"-94.8\">b</text>\n",
        "<polygon fill=\"none\" points=\"267,-88 267,-109 314,-109 314,-88 267,-88\" stroke=\"#000000\"/>\n",
        "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"270\" y=\"-94.8\">!a &amp; !b</text>\n",
        "<polygon fill=\"none\" points=\"314,-88 314,-109 352,-109 352,-88 314,-88\" stroke=\"#000000\"/>\n",
        "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"317\" y=\"-94.8\">a &amp; b</text>\n",
        "<polygon fill=\"none\" points=\"352,-88 352,-109 395,-109 395,-88 352,-88\" stroke=\"#000000\"/>\n",
        "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"355\" y=\"-94.8\">a &amp; !b</text>\n",
-       "<polygon fill=\"none\" points=\"395,-88 395,-109 438,-109 438,-88 395,-88\" stroke=\"#000000\"/>\n",
-       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"398\" y=\"-94.8\">!a &amp; b</text>\n",
-       "<polygon fill=\"none\" points=\"438,-88 438,-109 485,-109 485,-88 438,-88\" stroke=\"#000000\"/>\n",
-       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"441\" y=\"-94.8\">!a &amp; !b</text>\n",
+       "<polygon fill=\"none\" points=\"395,-88 395,-109 442,-109 442,-88 395,-88\" stroke=\"#000000\"/>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"398\" y=\"-94.8\">!a &amp; !b</text>\n",
+       "<polygon fill=\"none\" points=\"442,-88 442,-109 485,-109 485,-88 442,-88\" stroke=\"#000000\"/>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"445\" y=\"-94.8\">!a &amp; b</text>\n",
        "<polygon fill=\"none\" points=\"485,-88 485,-109 505,-109 505,-88 485,-88\" stroke=\"#000000\"/>\n",
        "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"491.5\" y=\"-94.8\">1</text>\n",
        "<polygon fill=\"none\" points=\"505,-88 505,-109 542,-109 542,-88 505,-88\" stroke=\"#000000\"/>\n",
        "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"520\" y=\"-94.8\">1</text>\n",
        "<polygon fill=\"none\" points=\"136,-67 136,-88 197,-88 197,-67 136,-67\" stroke=\"#000000\"/>\n",
        "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"157\" y=\"-73.8\">acc</text>\n",
-       "<polygon fill=\"none\" points=\"197,-67 197,-88 224,-88 224,-67 197,-67\" stroke=\"#000000\"/>\n",
-       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"200\" y=\"-73.8\">{1}</text>\n",
-       "<polygon fill=\"none\" points=\"224,-67 224,-88 267,-88 267,-67 224,-67\" stroke=\"#000000\"/>\n",
-       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"230\" y=\"-73.8\">{0,1}</text>\n",
+       "<polygon fill=\"none\" points=\"197,-67 197,-88 240,-88 240,-67 197,-67\" stroke=\"#000000\"/>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"208\" y=\"-73.8\">{0}</text>\n",
+       "<polygon fill=\"none\" points=\"240,-67 240,-88 267,-88 267,-67 240,-67\" stroke=\"#000000\"/>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"243\" y=\"-73.8\">{1}</text>\n",
        "<polygon fill=\"none\" points=\"267,-67 267,-88 314,-88 314,-67 267,-67\" stroke=\"#000000\"/>\n",
        "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"280\" y=\"-73.8\">{0}</text>\n",
        "<polygon fill=\"none\" points=\"314,-67 314,-88 352,-88 352,-67 314,-67\" stroke=\"#000000\"/>\n",
        "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"326\" y=\"-73.8\">{}</text>\n",
        "<polygon fill=\"none\" points=\"352,-67 352,-88 395,-88 395,-67 352,-67\" stroke=\"#000000\"/>\n",
        "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"363\" y=\"-73.8\">{0}</text>\n",
-       "<polygon fill=\"none\" points=\"395,-67 395,-88 438,-88 438,-67 395,-67\" stroke=\"#000000\"/>\n",
-       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"406\" y=\"-73.8\">{1}</text>\n",
-       "<polygon fill=\"none\" points=\"438,-67 438,-88 485,-88 485,-67 438,-67\" stroke=\"#000000\"/>\n",
-       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"446\" y=\"-73.8\">{0,1}</text>\n",
+       "<polygon fill=\"none\" points=\"395,-67 395,-88 442,-88 442,-67 395,-67\" stroke=\"#000000\"/>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"408\" y=\"-73.8\">{0}</text>\n",
+       "<polygon fill=\"none\" points=\"442,-67 442,-88 485,-88 485,-67 442,-67\" stroke=\"#000000\"/>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"453\" y=\"-73.8\">{1}</text>\n",
        "<polygon fill=\"none\" points=\"485,-67 485,-88 505,-88 505,-67 485,-67\" stroke=\"#000000\"/>\n",
        "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"488\" y=\"-73.8\">{}</text>\n",
        "<polygon fill=\"none\" points=\"505,-67 505,-88 542,-88 542,-67 505,-67\" stroke=\"#000000\"/>\n",
        "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"508\" y=\"-73.8\">{0,1}</text>\n",
        "<polygon fill=\"none\" points=\"136,-46 136,-67 197,-67 197,-46 136,-46\" stroke=\"#000000\"/>\n",
        "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"158.5\" y=\"-52.8\">dst</text>\n",
-       "<polygon fill=\"#ffff00\" points=\"197,-46 197,-67 224,-67 224,-46 197,-46\" stroke=\"transparent\"/>\n",
-       "<polygon fill=\"none\" points=\"197,-46 197,-67 224,-67 224,-46 197,-46\" stroke=\"#000000\"/>\n",
-       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"207\" y=\"-52.8\">0</text>\n",
-       "<polygon fill=\"#ffff00\" points=\"224,-46 224,-67 267,-67 267,-46 224,-46\" stroke=\"transparent\"/>\n",
-       "<polygon fill=\"none\" points=\"224,-46 224,-67 267,-67 267,-46 224,-46\" stroke=\"#000000\"/>\n",
-       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"242\" y=\"-52.8\">0</text>\n",
+       "<polygon fill=\"#ffff00\" points=\"197,-46 197,-67 240,-67 240,-46 197,-46\" stroke=\"transparent\"/>\n",
+       "<polygon fill=\"none\" points=\"197,-46 197,-67 240,-67 240,-46 197,-46\" stroke=\"#000000\"/>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"215\" y=\"-52.8\">0</text>\n",
+       "<polygon fill=\"#ffff00\" points=\"240,-46 240,-67 267,-67 267,-46 240,-46\" stroke=\"transparent\"/>\n",
+       "<polygon fill=\"none\" points=\"240,-46 240,-67 267,-67 267,-46 240,-46\" stroke=\"#000000\"/>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"250\" y=\"-52.8\">0</text>\n",
        "<polygon fill=\"#ffff00\" points=\"267,-46 267,-67 314,-67 314,-46 267,-46\" stroke=\"transparent\"/>\n",
        "<polygon fill=\"none\" points=\"267,-46 267,-67 314,-67 314,-46 267,-46\" stroke=\"#000000\"/>\n",
        "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"287\" y=\"-52.8\">1</text>\n",
@@ -2166,12 +2156,12 @@
        "<polygon fill=\"#ffff00\" points=\"352,-46 352,-67 395,-67 395,-46 352,-46\" stroke=\"transparent\"/>\n",
        "<polygon fill=\"none\" points=\"352,-46 352,-67 395,-67 395,-46 352,-46\" stroke=\"#000000\"/>\n",
        "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"370\" y=\"-52.8\">0</text>\n",
-       "<polygon fill=\"#ffff00\" points=\"395,-46 395,-67 438,-67 438,-46 395,-46\" stroke=\"transparent\"/>\n",
-       "<polygon fill=\"none\" points=\"395,-46 395,-67 438,-67 438,-46 395,-46\" stroke=\"#000000\"/>\n",
-       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"413\" y=\"-52.8\">1</text>\n",
-       "<polygon fill=\"#ffff00\" points=\"438,-46 438,-67 485,-67 485,-46 438,-46\" stroke=\"transparent\"/>\n",
-       "<polygon fill=\"none\" points=\"438,-46 438,-67 485,-67 485,-46 438,-46\" stroke=\"#000000\"/>\n",
-       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"458\" y=\"-52.8\">1</text>\n",
+       "<polygon fill=\"#ffff00\" points=\"395,-46 395,-67 442,-67 442,-46 395,-46\" stroke=\"transparent\"/>\n",
+       "<polygon fill=\"none\" points=\"395,-46 395,-67 442,-67 442,-46 395,-46\" stroke=\"#000000\"/>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"415\" y=\"-52.8\">1</text>\n",
+       "<polygon fill=\"#ffff00\" points=\"442,-46 442,-67 485,-67 485,-46 442,-46\" stroke=\"transparent\"/>\n",
+       "<polygon fill=\"none\" points=\"442,-46 442,-67 485,-67 485,-46 442,-46\" stroke=\"#000000\"/>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"460\" y=\"-52.8\">1</text>\n",
        "<polygon fill=\"#ffff00\" points=\"485,-46 485,-67 505,-67 505,-46 485,-46\" stroke=\"transparent\"/>\n",
        "<polygon fill=\"none\" points=\"485,-46 485,-67 505,-67 505,-46 485,-46\" stroke=\"#000000\"/>\n",
        "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"491.5\" y=\"-52.8\">0</text>\n",
@@ -2180,12 +2170,12 @@
        "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"520\" y=\"-52.8\">1</text>\n",
        "<polygon fill=\"none\" points=\"136,-25 136,-46 197,-46 197,-25 136,-25\" stroke=\"#000000\"/>\n",
        "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"139\" y=\"-31.8\">next_succ</text>\n",
-       "<polygon fill=\"#c0c0c0\" points=\"197,-25 197,-46 224,-46 224,-25 197,-25\" stroke=\"transparent\"/>\n",
-       "<polygon fill=\"none\" points=\"197,-25 197,-46 224,-46 224,-25 197,-25\" stroke=\"#000000\"/>\n",
-       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"207\" y=\"-31.8\">1</text>\n",
-       "<polygon fill=\"#c0c0c0\" points=\"224,-25 224,-46 267,-46 267,-25 224,-25\" stroke=\"transparent\"/>\n",
-       "<polygon fill=\"none\" points=\"224,-25 224,-46 267,-46 267,-25 224,-25\" stroke=\"#000000\"/>\n",
-       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"242\" y=\"-31.8\">2</text>\n",
+       "<polygon fill=\"#00ffff\" points=\"197,-25 197,-46 240,-46 240,-25 197,-25\" stroke=\"transparent\"/>\n",
+       "<polygon fill=\"none\" points=\"197,-25 197,-46 240,-46 240,-25 197,-25\" stroke=\"#000000\"/>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"215\" y=\"-31.8\">3</text>\n",
+       "<polygon fill=\"#c0c0c0\" points=\"240,-25 240,-46 267,-46 267,-25 240,-25\" stroke=\"transparent\"/>\n",
+       "<polygon fill=\"none\" points=\"240,-25 240,-46 267,-46 267,-25 240,-25\" stroke=\"#000000\"/>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"250\" y=\"-31.8\">2</text>\n",
        "<polygon fill=\"none\" points=\"267,-25 267,-46 314,-46 314,-25 267,-25\" stroke=\"#000000\"/>\n",
        "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"287\" y=\"-31.8\">0</text>\n",
        "<polygon fill=\"#00ffff\" points=\"314,-25 314,-46 352,-46 352,-25 314,-25\" stroke=\"transparent\"/>\n",
@@ -2194,24 +2184,24 @@
        "<polygon fill=\"#00ffff\" points=\"352,-25 352,-46 395,-46 395,-25 352,-25\" stroke=\"transparent\"/>\n",
        "<polygon fill=\"none\" points=\"352,-25 352,-46 395,-46 395,-25 352,-25\" stroke=\"#000000\"/>\n",
        "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"370\" y=\"-31.8\">6</text>\n",
-       "<polygon fill=\"#00ffff\" points=\"395,-25 395,-46 438,-46 438,-25 395,-25\" stroke=\"transparent\"/>\n",
-       "<polygon fill=\"none\" points=\"395,-25 395,-46 438,-46 438,-25 395,-25\" stroke=\"#000000\"/>\n",
-       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"413\" y=\"-31.8\">7</text>\n",
-       "<polygon fill=\"#00ffff\" points=\"438,-25 438,-46 485,-46 485,-25 438,-25\" stroke=\"transparent\"/>\n",
-       "<polygon fill=\"none\" points=\"438,-25 438,-46 485,-46 485,-25 438,-25\" stroke=\"#000000\"/>\n",
-       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"458\" y=\"-31.8\">9</text>\n",
+       "<polygon fill=\"#00ffff\" points=\"395,-25 395,-46 442,-46 442,-25 395,-25\" stroke=\"transparent\"/>\n",
+       "<polygon fill=\"none\" points=\"395,-25 395,-46 442,-46 442,-25 395,-25\" stroke=\"#000000\"/>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"415\" y=\"-31.8\">7</text>\n",
+       "<polygon fill=\"#00ffff\" points=\"442,-25 442,-46 485,-46 485,-25 442,-25\" stroke=\"transparent\"/>\n",
+       "<polygon fill=\"none\" points=\"442,-25 442,-46 485,-46 485,-25 442,-25\" stroke=\"#000000\"/>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"460\" y=\"-31.8\">9</text>\n",
        "<polygon fill=\"none\" points=\"485,-25 485,-46 505,-46 505,-25 485,-25\" stroke=\"#000000\"/>\n",
        "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"491.5\" y=\"-31.8\">0</text>\n",
        "<polygon fill=\"none\" points=\"505,-25 505,-46 542,-46 542,-25 505,-25\" stroke=\"#000000\"/>\n",
        "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"520\" y=\"-31.8\">0</text>\n",
        "<polygon fill=\"none\" points=\"136,-4 136,-25 197,-25 197,-4 136,-4\" stroke=\"#000000\"/>\n",
        "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"158.5\" y=\"-10.8\">src</text>\n",
-       "<polygon fill=\"#ffff00\" points=\"197,-4 197,-25 224,-25 224,-4 197,-4\" stroke=\"transparent\"/>\n",
-       "<polygon fill=\"none\" points=\"197,-4 197,-25 224,-25 224,-4 197,-4\" stroke=\"#000000\"/>\n",
-       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"207\" y=\"-10.8\">0</text>\n",
-       "<polygon fill=\"#ffff00\" points=\"224,-4 224,-25 267,-25 267,-4 224,-4\" stroke=\"transparent\"/>\n",
-       "<polygon fill=\"none\" points=\"224,-4 224,-25 267,-25 267,-4 224,-4\" stroke=\"#000000\"/>\n",
-       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"242\" y=\"-10.8\">0</text>\n",
+       "<polygon fill=\"#ffff00\" points=\"197,-4 197,-25 240,-25 240,-4 197,-4\" stroke=\"transparent\"/>\n",
+       "<polygon fill=\"none\" points=\"197,-4 197,-25 240,-25 240,-4 197,-4\" stroke=\"#000000\"/>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"215\" y=\"-10.8\">0</text>\n",
+       "<polygon fill=\"#ffff00\" points=\"240,-4 240,-25 267,-25 267,-4 240,-4\" stroke=\"transparent\"/>\n",
+       "<polygon fill=\"none\" points=\"240,-4 240,-25 267,-25 267,-4 240,-4\" stroke=\"#000000\"/>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"250\" y=\"-10.8\">0</text>\n",
        "<polygon fill=\"#ffff00\" points=\"267,-4 267,-25 314,-25 314,-4 267,-4\" stroke=\"transparent\"/>\n",
        "<polygon fill=\"none\" points=\"267,-4 267,-25 314,-25 314,-4 267,-4\" stroke=\"#000000\"/>\n",
        "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"287\" y=\"-10.8\">0</text>\n",
@@ -2221,12 +2211,12 @@
        "<polygon fill=\"#ffff00\" points=\"352,-4 352,-25 395,-25 395,-4 352,-4\" stroke=\"transparent\"/>\n",
        "<polygon fill=\"none\" points=\"352,-4 352,-25 395,-25 395,-4 352,-4\" stroke=\"#000000\"/>\n",
        "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"370\" y=\"-10.8\">1</text>\n",
-       "<polygon fill=\"#ffff00\" points=\"395,-4 395,-25 438,-25 438,-4 395,-4\" stroke=\"transparent\"/>\n",
-       "<polygon fill=\"none\" points=\"395,-4 395,-25 438,-25 438,-4 395,-4\" stroke=\"#000000\"/>\n",
-       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"413\" y=\"-10.8\">1</text>\n",
-       "<polygon fill=\"#ffff00\" points=\"438,-4 438,-25 485,-25 485,-4 438,-4\" stroke=\"transparent\"/>\n",
-       "<polygon fill=\"none\" points=\"438,-4 438,-25 485,-25 485,-4 438,-4\" stroke=\"#000000\"/>\n",
-       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"458\" y=\"-10.8\">1</text>\n",
+       "<polygon fill=\"#ffff00\" points=\"395,-4 395,-25 442,-25 442,-4 395,-4\" stroke=\"transparent\"/>\n",
+       "<polygon fill=\"none\" points=\"395,-4 395,-25 442,-25 442,-4 395,-4\" stroke=\"#000000\"/>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"415\" y=\"-10.8\">1</text>\n",
+       "<polygon fill=\"#ffff00\" points=\"442,-4 442,-25 485,-25 485,-4 442,-4\" stroke=\"transparent\"/>\n",
+       "<polygon fill=\"none\" points=\"442,-4 442,-25 485,-25 485,-4 442,-4\" stroke=\"#000000\"/>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"460\" y=\"-10.8\">1</text>\n",
        "<polygon fill=\"#ffff00\" points=\"485,-4 485,-25 505,-25 505,-4 485,-4\" stroke=\"transparent\"/>\n",
        "<polygon fill=\"none\" points=\"485,-4 485,-25 505,-25 505,-4 485,-4\" stroke=\"#000000\"/>\n",
        "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"491.5\" y=\"-10.8\">2</text>\n",
@@ -2295,6 +2285,7 @@
      "name": "stdout",
      "output_type": "stream",
      "text": [
+      "edges[1].src=0, edges[1].dst=0\n",
       "edges[3].src=0, edges[3].dst=1\n",
       "edges[4].src=1, edges[4].dst=0\n",
       "edges[5].src=1, edges[5].dst=0\n",
@@ -2325,7 +2316,7 @@
     {
      "data": {
       "text/plain": [
-       "7"
+       "8"
       ]
      },
      "execution_count": 16,
@@ -2352,10 +2343,10 @@
     {
      "data": {
       "image/svg+xml": [
-       "<svg height=\"142pt\" viewBox=\"0.00 0.00 441.50 142.00\" width=\"442pt\" xmlns=\"http://www.w3.org/2000/svg\" xmlns:xlink=\"http://www.w3.org/1999/xlink\">\n",
+       "<svg height=\"142pt\" viewBox=\"0.00 0.00 531.50 142.00\" width=\"532pt\" xmlns=\"http://www.w3.org/2000/svg\" xmlns:xlink=\"http://www.w3.org/1999/xlink\">\n",
        "<g class=\"graph\" id=\"graph0\" transform=\"scale(1 1) rotate(0) translate(4 138)\">\n",
        "<title>g</title>\n",
-       "<polygon fill=\"#ffffff\" points=\"-4,4 -4,-138 437.5,-138 437.5,4 -4,4\" stroke=\"transparent\"/>\n",
+       "<polygon fill=\"#ffffff\" points=\"-4,4 -4,-138 527.5,-138 527.5,4 -4,4\" stroke=\"transparent\"/>\n",
        "<!-- states -->\n",
        "<g class=\"node\" id=\"node1\">\n",
        "<title>states</title>\n",
@@ -2378,21 +2369,21 @@
        "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"66\" y=\"-62.8\">1</text>\n",
        "<polygon fill=\"#00ffff\" points=\"76,-56 76,-77 89,-77 89,-56 76,-56\" stroke=\"transparent\"/>\n",
        "<polygon fill=\"none\" points=\"76,-56 76,-77 89,-77 89,-56 76,-56\" stroke=\"#000000\"/>\n",
-       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"79\" y=\"-62.8\">2</text>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"79\" y=\"-62.8\">3</text>\n",
        "<polygon fill=\"#00ffff\" points=\"89,-56 89,-77 102,-77 102,-56 89,-56\" stroke=\"transparent\"/>\n",
        "<polygon fill=\"none\" points=\"89,-56 89,-77 102,-77 102,-56 89,-56\" stroke=\"#000000\"/>\n",
-       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"92\" y=\"-62.8\">6</text>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"92\" y=\"-62.8\">8</text>\n",
        "<polygon fill=\"none\" points=\"8,-35 8,-56 63,-56 63,-35 8,-35\" stroke=\"#000000\"/>\n",
        "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"11\" y=\"-41.8\">succ_tail</text>\n",
        "<polygon fill=\"#00ffff\" points=\"63,-35 63,-56 76,-56 76,-35 63,-35\" stroke=\"transparent\"/>\n",
        "<polygon fill=\"none\" points=\"63,-35 63,-56 76,-56 76,-35 63,-35\" stroke=\"#000000\"/>\n",
-       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"66\" y=\"-41.8\">1</text>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"66\" y=\"-41.8\">2</text>\n",
        "<polygon fill=\"#00ffff\" points=\"76,-35 76,-56 89,-56 89,-35 76,-35\" stroke=\"transparent\"/>\n",
        "<polygon fill=\"none\" points=\"76,-35 76,-56 89,-56 89,-35 76,-35\" stroke=\"#000000\"/>\n",
-       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"79\" y=\"-41.8\">5</text>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"79\" y=\"-41.8\">7</text>\n",
        "<polygon fill=\"#00ffff\" points=\"89,-35 89,-56 102,-56 102,-35 89,-35\" stroke=\"transparent\"/>\n",
        "<polygon fill=\"none\" points=\"89,-35 89,-56 102,-56 102,-35 89,-35\" stroke=\"#000000\"/>\n",
-       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"92\" y=\"-41.8\">6</text>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"92\" y=\"-41.8\">8</text>\n",
        "</g>\n",
        "<!-- edges -->\n",
        "<g class=\"node\" id=\"node2\">\n",
@@ -2400,109 +2391,141 @@
        "<polygon fill=\"#00ffff\" points=\"137,-109 137,-130 198,-130 198,-109 137,-109\" stroke=\"transparent\"/>\n",
        "<polyline fill=\"none\" points=\"137,-109 198,-109 \" stroke=\"#000000\"/>\n",
        "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"152\" y=\"-115.8\">edges</text>\n",
-       "<polygon fill=\"#00ffff\" points=\"198,-109 198,-130 245,-130 245,-109 198,-109\" stroke=\"transparent\"/>\n",
-       "<polyline fill=\"none\" points=\"198,-109 245,-109 \" stroke=\"#000000\"/>\n",
-       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"218\" y=\"-115.8\">1</text>\n",
-       "<polygon fill=\"#00ffff\" points=\"245,-109 245,-130 283,-130 283,-109 245,-109\" stroke=\"transparent\"/>\n",
-       "<polyline fill=\"none\" points=\"245,-109 283,-109 \" stroke=\"#000000\"/>\n",
-       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"260.5\" y=\"-115.8\">2</text>\n",
-       "<polygon fill=\"#00ffff\" points=\"283,-109 283,-130 326,-130 326,-109 283,-109\" stroke=\"transparent\"/>\n",
-       "<polyline fill=\"none\" points=\"283,-109 326,-109 \" stroke=\"#000000\"/>\n",
-       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"301\" y=\"-115.8\">3</text>\n",
+       "<polygon fill=\"#00ffff\" points=\"198,-109 198,-130 241,-130 241,-109 198,-109\" stroke=\"transparent\"/>\n",
+       "<polyline fill=\"none\" points=\"198,-109 241,-109 \" stroke=\"#000000\"/>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"216\" y=\"-115.8\">1</text>\n",
+       "<polygon fill=\"#00ffff\" points=\"241,-109 241,-130 288,-130 288,-109 241,-109\" stroke=\"transparent\"/>\n",
+       "<polyline fill=\"none\" points=\"241,-109 288,-109 \" stroke=\"#000000\"/>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"261\" y=\"-115.8\">2</text>\n",
+       "<polygon fill=\"#00ffff\" points=\"288,-109 288,-130 326,-130 326,-109 288,-109\" stroke=\"transparent\"/>\n",
+       "<polyline fill=\"none\" points=\"288,-109 326,-109 \" stroke=\"#000000\"/>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"303.5\" y=\"-115.8\">3</text>\n",
        "<polygon fill=\"#00ffff\" points=\"326,-109 326,-130 369,-130 369,-109 326,-109\" stroke=\"transparent\"/>\n",
        "<polyline fill=\"none\" points=\"326,-109 369,-109 \" stroke=\"#000000\"/>\n",
        "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"344\" y=\"-115.8\">4</text>\n",
-       "<polygon fill=\"#00ffff\" points=\"369,-109 369,-130 406,-130 406,-109 369,-109\" stroke=\"transparent\"/>\n",
-       "<polyline fill=\"none\" points=\"369,-109 406,-109 \" stroke=\"#000000\"/>\n",
-       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"384\" y=\"-115.8\">5</text>\n",
-       "<polygon fill=\"#00ffff\" points=\"406,-109 406,-130 426,-130 426,-109 406,-109\" stroke=\"transparent\"/>\n",
-       "<polyline fill=\"none\" points=\"406,-109 426,-109 \" stroke=\"#000000\"/>\n",
-       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"412.5\" y=\"-115.8\">6</text>\n",
+       "<polygon fill=\"#00ffff\" points=\"369,-109 369,-130 416,-130 416,-109 369,-109\" stroke=\"transparent\"/>\n",
+       "<polyline fill=\"none\" points=\"369,-109 416,-109 \" stroke=\"#000000\"/>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"389\" y=\"-115.8\">5</text>\n",
+       "<polygon fill=\"#00ffff\" points=\"416,-109 416,-130 459,-130 459,-109 416,-109\" stroke=\"transparent\"/>\n",
+       "<polyline fill=\"none\" points=\"416,-109 459,-109 \" stroke=\"#000000\"/>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"434\" y=\"-115.8\">6</text>\n",
+       "<polygon fill=\"#00ffff\" points=\"459,-109 459,-130 496,-130 496,-109 459,-109\" stroke=\"transparent\"/>\n",
+       "<polyline fill=\"none\" points=\"459,-109 496,-109 \" stroke=\"#000000\"/>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"474\" y=\"-115.8\">7</text>\n",
+       "<polygon fill=\"#00ffff\" points=\"496,-109 496,-130 516,-130 516,-109 496,-109\" stroke=\"transparent\"/>\n",
+       "<polyline fill=\"none\" points=\"496,-109 516,-109 \" stroke=\"#000000\"/>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"502.5\" y=\"-115.8\">8</text>\n",
        "<polygon fill=\"none\" points=\"137,-88 137,-109 198,-109 198,-88 137,-88\" stroke=\"#000000\"/>\n",
        "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"154\" y=\"-94.8\">cond</text>\n",
-       "<polygon fill=\"none\" points=\"198,-88 198,-109 245,-109 245,-88 198,-88\" stroke=\"#000000\"/>\n",
-       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"201\" y=\"-94.8\">!a &amp; !b</text>\n",
-       "<polygon fill=\"none\" points=\"245,-88 245,-109 283,-109 283,-88 245,-88\" stroke=\"#000000\"/>\n",
-       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"248\" y=\"-94.8\">a &amp; b</text>\n",
-       "<polygon fill=\"none\" points=\"283,-88 283,-109 326,-109 326,-88 283,-88\" stroke=\"#000000\"/>\n",
-       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"286\" y=\"-94.8\">a &amp; !b</text>\n",
+       "<polygon fill=\"none\" points=\"198,-88 198,-109 241,-109 241,-88 198,-88\" stroke=\"#000000\"/>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"201\" y=\"-94.8\">a &amp; !b</text>\n",
+       "<polygon fill=\"none\" points=\"241,-88 241,-109 288,-109 288,-88 241,-88\" stroke=\"#000000\"/>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"244\" y=\"-94.8\">!a &amp; !b</text>\n",
+       "<polygon fill=\"none\" points=\"288,-88 288,-109 326,-109 326,-88 288,-88\" stroke=\"#000000\"/>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"291\" y=\"-94.8\">a &amp; b</text>\n",
        "<polygon fill=\"none\" points=\"326,-88 326,-109 369,-109 369,-88 326,-88\" stroke=\"#000000\"/>\n",
-       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"329\" y=\"-94.8\">!a &amp; b</text>\n",
-       "<polygon fill=\"none\" points=\"369,-88 369,-109 406,-109 406,-88 369,-88\" stroke=\"#000000\"/>\n",
-       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"384\" y=\"-94.8\">1</text>\n",
-       "<polygon fill=\"none\" points=\"406,-88 406,-109 426,-109 426,-88 406,-88\" stroke=\"#000000\"/>\n",
-       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"412.5\" y=\"-94.8\">1</text>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"329\" y=\"-94.8\">a &amp; !b</text>\n",
+       "<polygon fill=\"none\" points=\"369,-88 369,-109 416,-109 416,-88 369,-88\" stroke=\"#000000\"/>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"372\" y=\"-94.8\">!a &amp; !b</text>\n",
+       "<polygon fill=\"none\" points=\"416,-88 416,-109 459,-109 459,-88 416,-88\" stroke=\"#000000\"/>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"419\" y=\"-94.8\">!a &amp; b</text>\n",
+       "<polygon fill=\"none\" points=\"459,-88 459,-109 496,-109 496,-88 459,-88\" stroke=\"#000000\"/>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"474\" y=\"-94.8\">1</text>\n",
+       "<polygon fill=\"none\" points=\"496,-88 496,-109 516,-109 516,-88 496,-88\" stroke=\"#000000\"/>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"502.5\" y=\"-94.8\">1</text>\n",
        "<polygon fill=\"none\" points=\"137,-67 137,-88 198,-88 198,-67 137,-67\" stroke=\"#000000\"/>\n",
        "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"158\" y=\"-73.8\">acc</text>\n",
-       "<polygon fill=\"none\" points=\"198,-67 198,-88 245,-88 245,-67 198,-67\" stroke=\"#000000\"/>\n",
-       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"211\" y=\"-73.8\">{0}</text>\n",
-       "<polygon fill=\"none\" points=\"245,-67 245,-88 283,-88 283,-67 245,-67\" stroke=\"#000000\"/>\n",
-       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"257\" y=\"-73.8\">{}</text>\n",
-       "<polygon fill=\"none\" points=\"283,-67 283,-88 326,-88 326,-67 283,-67\" stroke=\"#000000\"/>\n",
-       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"294\" y=\"-73.8\">{0}</text>\n",
+       "<polygon fill=\"none\" points=\"198,-67 198,-88 241,-88 241,-67 198,-67\" stroke=\"#000000\"/>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"209\" y=\"-73.8\">{0}</text>\n",
+       "<polygon fill=\"none\" points=\"241,-67 241,-88 288,-88 288,-67 241,-67\" stroke=\"#000000\"/>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"254\" y=\"-73.8\">{0}</text>\n",
+       "<polygon fill=\"none\" points=\"288,-67 288,-88 326,-88 326,-67 288,-67\" stroke=\"#000000\"/>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"300\" y=\"-73.8\">{}</text>\n",
        "<polygon fill=\"none\" points=\"326,-67 326,-88 369,-88 369,-67 326,-67\" stroke=\"#000000\"/>\n",
-       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"337\" y=\"-73.8\">{1}</text>\n",
-       "<polygon fill=\"none\" points=\"369,-67 369,-88 406,-88 406,-67 369,-67\" stroke=\"#000000\"/>\n",
-       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"372\" y=\"-73.8\">{0,1}</text>\n",
-       "<polygon fill=\"none\" points=\"406,-67 406,-88 426,-88 426,-67 406,-67\" stroke=\"#000000\"/>\n",
-       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"409\" y=\"-73.8\">{}</text>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"337\" y=\"-73.8\">{0}</text>\n",
+       "<polygon fill=\"none\" points=\"369,-67 369,-88 416,-88 416,-67 369,-67\" stroke=\"#000000\"/>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"382\" y=\"-73.8\">{0}</text>\n",
+       "<polygon fill=\"none\" points=\"416,-67 416,-88 459,-88 459,-67 416,-67\" stroke=\"#000000\"/>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"427\" y=\"-73.8\">{1}</text>\n",
+       "<polygon fill=\"none\" points=\"459,-67 459,-88 496,-88 496,-67 459,-67\" stroke=\"#000000\"/>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"462\" y=\"-73.8\">{0,1}</text>\n",
+       "<polygon fill=\"none\" points=\"496,-67 496,-88 516,-88 516,-67 496,-67\" stroke=\"#000000\"/>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"499\" y=\"-73.8\">{}</text>\n",
        "<polygon fill=\"none\" points=\"137,-46 137,-67 198,-67 198,-46 137,-46\" stroke=\"#000000\"/>\n",
        "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"159.5\" y=\"-52.8\">dst</text>\n",
-       "<polygon fill=\"#ffff00\" points=\"198,-46 198,-67 245,-67 245,-46 198,-46\" stroke=\"transparent\"/>\n",
-       "<polygon fill=\"none\" points=\"198,-46 198,-67 245,-67 245,-46 198,-46\" stroke=\"#000000\"/>\n",
-       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"218\" y=\"-52.8\">1</text>\n",
-       "<polygon fill=\"#ffff00\" points=\"245,-46 245,-67 283,-67 283,-46 245,-46\" stroke=\"transparent\"/>\n",
-       "<polygon fill=\"none\" points=\"245,-46 245,-67 283,-67 283,-46 245,-46\" stroke=\"#000000\"/>\n",
-       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"260.5\" y=\"-52.8\">0</text>\n",
-       "<polygon fill=\"#ffff00\" points=\"283,-46 283,-67 326,-67 326,-46 283,-46\" stroke=\"transparent\"/>\n",
-       "<polygon fill=\"none\" points=\"283,-46 283,-67 326,-67 326,-46 283,-46\" stroke=\"#000000\"/>\n",
-       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"301\" y=\"-52.8\">0</text>\n",
+       "<polygon fill=\"#ffff00\" points=\"198,-46 198,-67 241,-67 241,-46 198,-46\" stroke=\"transparent\"/>\n",
+       "<polygon fill=\"none\" points=\"198,-46 198,-67 241,-67 241,-46 198,-46\" stroke=\"#000000\"/>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"216\" y=\"-52.8\">0</text>\n",
+       "<polygon fill=\"#ffff00\" points=\"241,-46 241,-67 288,-67 288,-46 241,-46\" stroke=\"transparent\"/>\n",
+       "<polygon fill=\"none\" points=\"241,-46 241,-67 288,-67 288,-46 241,-46\" stroke=\"#000000\"/>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"261\" y=\"-52.8\">1</text>\n",
+       "<polygon fill=\"#ffff00\" points=\"288,-46 288,-67 326,-67 326,-46 288,-46\" stroke=\"transparent\"/>\n",
+       "<polygon fill=\"none\" points=\"288,-46 288,-67 326,-67 326,-46 288,-46\" stroke=\"#000000\"/>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"303.5\" y=\"-52.8\">0</text>\n",
        "<polygon fill=\"#ffff00\" points=\"326,-46 326,-67 369,-67 369,-46 326,-46\" stroke=\"transparent\"/>\n",
        "<polygon fill=\"none\" points=\"326,-46 326,-67 369,-67 369,-46 326,-46\" stroke=\"#000000\"/>\n",
-       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"344\" y=\"-52.8\">1</text>\n",
-       "<polygon fill=\"#ffff00\" points=\"369,-46 369,-67 406,-67 406,-46 369,-46\" stroke=\"transparent\"/>\n",
-       "<polygon fill=\"none\" points=\"369,-46 369,-67 406,-67 406,-46 369,-46\" stroke=\"#000000\"/>\n",
-       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"384\" y=\"-52.8\">1</text>\n",
-       "<polygon fill=\"#ffff00\" points=\"406,-46 406,-67 426,-67 426,-46 406,-46\" stroke=\"transparent\"/>\n",
-       "<polygon fill=\"none\" points=\"406,-46 406,-67 426,-67 426,-46 406,-46\" stroke=\"#000000\"/>\n",
-       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"412.5\" y=\"-52.8\">0</text>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"344\" y=\"-52.8\">0</text>\n",
+       "<polygon fill=\"#ffff00\" points=\"369,-46 369,-67 416,-67 416,-46 369,-46\" stroke=\"transparent\"/>\n",
+       "<polygon fill=\"none\" points=\"369,-46 369,-67 416,-67 416,-46 369,-46\" stroke=\"#000000\"/>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"389\" y=\"-52.8\">1</text>\n",
+       "<polygon fill=\"#ffff00\" points=\"416,-46 416,-67 459,-67 459,-46 416,-46\" stroke=\"transparent\"/>\n",
+       "<polygon fill=\"none\" points=\"416,-46 416,-67 459,-67 459,-46 416,-46\" stroke=\"#000000\"/>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"434\" y=\"-52.8\">1</text>\n",
+       "<polygon fill=\"#ffff00\" points=\"459,-46 459,-67 496,-67 496,-46 459,-46\" stroke=\"transparent\"/>\n",
+       "<polygon fill=\"none\" points=\"459,-46 459,-67 496,-67 496,-46 459,-46\" stroke=\"#000000\"/>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"474\" y=\"-52.8\">1</text>\n",
+       "<polygon fill=\"#ffff00\" points=\"496,-46 496,-67 516,-67 516,-46 496,-46\" stroke=\"transparent\"/>\n",
+       "<polygon fill=\"none\" points=\"496,-46 496,-67 516,-67 516,-46 496,-46\" stroke=\"#000000\"/>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"502.5\" y=\"-52.8\">0</text>\n",
        "<polygon fill=\"none\" points=\"137,-25 137,-46 198,-46 198,-25 137,-25\" stroke=\"#000000\"/>\n",
        "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"140\" y=\"-31.8\">next_succ</text>\n",
-       "<polygon fill=\"none\" points=\"198,-25 198,-46 245,-46 245,-25 198,-25\" stroke=\"#000000\"/>\n",
-       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"218\" y=\"-31.8\">0</text>\n",
-       "<polygon fill=\"#00ffff\" points=\"245,-25 245,-46 283,-46 283,-25 245,-25\" stroke=\"transparent\"/>\n",
-       "<polygon fill=\"none\" points=\"245,-25 245,-46 283,-46 283,-25 245,-25\" stroke=\"#000000\"/>\n",
-       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"260.5\" y=\"-31.8\">3</text>\n",
-       "<polygon fill=\"#00ffff\" points=\"283,-25 283,-46 326,-46 326,-25 283,-25\" stroke=\"transparent\"/>\n",
-       "<polygon fill=\"none\" points=\"283,-25 283,-46 326,-46 326,-25 283,-25\" stroke=\"#000000\"/>\n",
-       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"301\" y=\"-31.8\">4</text>\n",
+       "<polygon fill=\"#00ffff\" points=\"198,-25 198,-46 241,-46 241,-25 198,-25\" stroke=\"transparent\"/>\n",
+       "<polygon fill=\"none\" points=\"198,-25 198,-46 241,-46 241,-25 198,-25\" stroke=\"#000000\"/>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"216\" y=\"-31.8\">2</text>\n",
+       "<polygon fill=\"none\" points=\"241,-25 241,-46 288,-46 288,-25 241,-25\" stroke=\"#000000\"/>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"261\" y=\"-31.8\">0</text>\n",
+       "<polygon fill=\"#00ffff\" points=\"288,-25 288,-46 326,-46 326,-25 288,-25\" stroke=\"transparent\"/>\n",
+       "<polygon fill=\"none\" points=\"288,-25 288,-46 326,-46 326,-25 288,-25\" stroke=\"#000000\"/>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"303.5\" y=\"-31.8\">4</text>\n",
        "<polygon fill=\"#00ffff\" points=\"326,-25 326,-46 369,-46 369,-25 326,-25\" stroke=\"transparent\"/>\n",
        "<polygon fill=\"none\" points=\"326,-25 326,-46 369,-46 369,-25 326,-25\" stroke=\"#000000\"/>\n",
        "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"344\" y=\"-31.8\">5</text>\n",
-       "<polygon fill=\"none\" points=\"369,-25 369,-46 406,-46 406,-25 369,-25\" stroke=\"#000000\"/>\n",
-       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"384\" y=\"-31.8\">0</text>\n",
-       "<polygon fill=\"none\" points=\"406,-25 406,-46 426,-46 426,-25 406,-25\" stroke=\"#000000\"/>\n",
-       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"412.5\" y=\"-31.8\">0</text>\n",
+       "<polygon fill=\"#00ffff\" points=\"369,-25 369,-46 416,-46 416,-25 369,-25\" stroke=\"transparent\"/>\n",
+       "<polygon fill=\"none\" points=\"369,-25 369,-46 416,-46 416,-25 369,-25\" stroke=\"#000000\"/>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"389\" y=\"-31.8\">6</text>\n",
+       "<polygon fill=\"#00ffff\" points=\"416,-25 416,-46 459,-46 459,-25 416,-25\" stroke=\"transparent\"/>\n",
+       "<polygon fill=\"none\" points=\"416,-25 416,-46 459,-46 459,-25 416,-25\" stroke=\"#000000\"/>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"434\" y=\"-31.8\">7</text>\n",
+       "<polygon fill=\"none\" points=\"459,-25 459,-46 496,-46 496,-25 459,-25\" stroke=\"#000000\"/>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"474\" y=\"-31.8\">0</text>\n",
+       "<polygon fill=\"none\" points=\"496,-25 496,-46 516,-46 516,-25 496,-25\" stroke=\"#000000\"/>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"502.5\" y=\"-31.8\">0</text>\n",
        "<polygon fill=\"none\" points=\"137,-4 137,-25 198,-25 198,-4 137,-4\" stroke=\"#000000\"/>\n",
        "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"159.5\" y=\"-10.8\">src</text>\n",
-       "<polygon fill=\"#ffff00\" points=\"198,-4 198,-25 245,-25 245,-4 198,-4\" stroke=\"transparent\"/>\n",
-       "<polygon fill=\"none\" points=\"198,-4 198,-25 245,-25 245,-4 198,-4\" stroke=\"#000000\"/>\n",
-       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"218\" y=\"-10.8\">0</text>\n",
-       "<polygon fill=\"#ffff00\" points=\"245,-4 245,-25 283,-25 283,-4 245,-4\" stroke=\"transparent\"/>\n",
-       "<polygon fill=\"none\" points=\"245,-4 245,-25 283,-25 283,-4 245,-4\" stroke=\"#000000\"/>\n",
-       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"260.5\" y=\"-10.8\">1</text>\n",
-       "<polygon fill=\"#ffff00\" points=\"283,-4 283,-25 326,-25 326,-4 283,-4\" stroke=\"transparent\"/>\n",
-       "<polygon fill=\"none\" points=\"283,-4 283,-25 326,-25 326,-4 283,-4\" stroke=\"#000000\"/>\n",
-       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"301\" y=\"-10.8\">1</text>\n",
+       "<polygon fill=\"#ffff00\" points=\"198,-4 198,-25 241,-25 241,-4 198,-4\" stroke=\"transparent\"/>\n",
+       "<polygon fill=\"none\" points=\"198,-4 198,-25 241,-25 241,-4 198,-4\" stroke=\"#000000\"/>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"216\" y=\"-10.8\">0</text>\n",
+       "<polygon fill=\"#ffff00\" points=\"241,-4 241,-25 288,-25 288,-4 241,-4\" stroke=\"transparent\"/>\n",
+       "<polygon fill=\"none\" points=\"241,-4 241,-25 288,-25 288,-4 241,-4\" stroke=\"#000000\"/>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"261\" y=\"-10.8\">0</text>\n",
+       "<polygon fill=\"#ffff00\" points=\"288,-4 288,-25 326,-25 326,-4 288,-4\" stroke=\"transparent\"/>\n",
+       "<polygon fill=\"none\" points=\"288,-4 288,-25 326,-25 326,-4 288,-4\" stroke=\"#000000\"/>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"303.5\" y=\"-10.8\">1</text>\n",
        "<polygon fill=\"#ffff00\" points=\"326,-4 326,-25 369,-25 369,-4 326,-4\" stroke=\"transparent\"/>\n",
        "<polygon fill=\"none\" points=\"326,-4 326,-25 369,-25 369,-4 326,-4\" stroke=\"#000000\"/>\n",
        "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"344\" y=\"-10.8\">1</text>\n",
-       "<polygon fill=\"#ffff00\" points=\"369,-4 369,-25 406,-25 406,-4 369,-4\" stroke=\"transparent\"/>\n",
-       "<polygon fill=\"none\" points=\"369,-4 369,-25 406,-25 406,-4 369,-4\" stroke=\"#000000\"/>\n",
-       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"384\" y=\"-10.8\">1</text>\n",
-       "<polygon fill=\"#ffff00\" points=\"406,-4 406,-25 426,-25 426,-4 406,-4\" stroke=\"transparent\"/>\n",
-       "<polygon fill=\"none\" points=\"406,-4 406,-25 426,-25 426,-4 406,-4\" stroke=\"#000000\"/>\n",
-       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"412.5\" y=\"-10.8\">2</text>\n",
+       "<polygon fill=\"#ffff00\" points=\"369,-4 369,-25 416,-25 416,-4 369,-4\" stroke=\"transparent\"/>\n",
+       "<polygon fill=\"none\" points=\"369,-4 369,-25 416,-25 416,-4 369,-4\" stroke=\"#000000\"/>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"389\" y=\"-10.8\">1</text>\n",
+       "<polygon fill=\"#ffff00\" points=\"416,-4 416,-25 459,-25 459,-4 416,-4\" stroke=\"transparent\"/>\n",
+       "<polygon fill=\"none\" points=\"416,-4 416,-25 459,-25 459,-4 416,-4\" stroke=\"#000000\"/>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"434\" y=\"-10.8\">1</text>\n",
+       "<polygon fill=\"#ffff00\" points=\"459,-4 459,-25 496,-25 496,-4 459,-4\" stroke=\"transparent\"/>\n",
+       "<polygon fill=\"none\" points=\"459,-4 459,-25 496,-25 496,-4 459,-4\" stroke=\"#000000\"/>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"474\" y=\"-10.8\">1</text>\n",
+       "<polygon fill=\"#ffff00\" points=\"496,-4 496,-25 516,-25 516,-4 496,-4\" stroke=\"transparent\"/>\n",
+       "<polygon fill=\"none\" points=\"496,-4 496,-25 516,-25 516,-4 496,-4\" stroke=\"#000000\"/>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"502.5\" y=\"-10.8\">2</text>\n",
        "</g>\n",
        "</g>\n",
        "</svg>"
@@ -2536,10 +2559,10 @@
     {
      "data": {
       "image/svg+xml": [
-       "<svg height=\"142pt\" viewBox=\"0.00 0.00 424.50 142.00\" width=\"425pt\" xmlns=\"http://www.w3.org/2000/svg\" xmlns:xlink=\"http://www.w3.org/1999/xlink\">\n",
+       "<svg height=\"142pt\" viewBox=\"0.00 0.00 513.50 142.00\" width=\"514pt\" xmlns=\"http://www.w3.org/2000/svg\" xmlns:xlink=\"http://www.w3.org/1999/xlink\">\n",
        "<g class=\"graph\" id=\"graph0\" transform=\"scale(1 1) rotate(0) translate(4 138)\">\n",
        "<title>g</title>\n",
-       "<polygon fill=\"#ffffff\" points=\"-4,4 -4,-138 420.5,-138 420.5,4 -4,4\" stroke=\"transparent\"/>\n",
+       "<polygon fill=\"#ffffff\" points=\"-4,4 -4,-138 509.5,-138 509.5,4 -4,4\" stroke=\"transparent\"/>\n",
        "<!-- states -->\n",
        "<g class=\"node\" id=\"node1\">\n",
        "<title>states</title>\n",
@@ -2562,131 +2585,163 @@
        "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"66\" y=\"-62.8\">1</text>\n",
        "<polygon fill=\"#00ffff\" points=\"76,-56 76,-77 89,-77 89,-56 76,-56\" stroke=\"transparent\"/>\n",
        "<polygon fill=\"none\" points=\"76,-56 76,-77 89,-77 89,-56 76,-56\" stroke=\"#000000\"/>\n",
-       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"79\" y=\"-62.8\">2</text>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"79\" y=\"-62.8\">3</text>\n",
        "<polygon fill=\"#00ffff\" points=\"89,-56 89,-77 102,-77 102,-56 89,-56\" stroke=\"transparent\"/>\n",
        "<polygon fill=\"none\" points=\"89,-56 89,-77 102,-77 102,-56 89,-56\" stroke=\"#000000\"/>\n",
-       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"92\" y=\"-62.8\">6</text>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"92\" y=\"-62.8\">8</text>\n",
        "<polygon fill=\"none\" points=\"8,-35 8,-56 63,-56 63,-35 8,-35\" stroke=\"#000000\"/>\n",
        "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"11\" y=\"-41.8\">succ_tail</text>\n",
        "<polygon fill=\"#00ffff\" points=\"63,-35 63,-56 76,-56 76,-35 63,-35\" stroke=\"transparent\"/>\n",
        "<polygon fill=\"none\" points=\"63,-35 63,-56 76,-56 76,-35 63,-35\" stroke=\"#000000\"/>\n",
-       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"66\" y=\"-41.8\">1</text>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"66\" y=\"-41.8\">2</text>\n",
        "<polygon fill=\"#00ffff\" points=\"76,-35 76,-56 89,-56 89,-35 76,-35\" stroke=\"transparent\"/>\n",
        "<polygon fill=\"none\" points=\"76,-35 76,-56 89,-56 89,-35 76,-35\" stroke=\"#000000\"/>\n",
-       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"79\" y=\"-41.8\">5</text>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"79\" y=\"-41.8\">7</text>\n",
        "<polygon fill=\"#00ffff\" points=\"89,-35 89,-56 102,-56 102,-35 89,-35\" stroke=\"transparent\"/>\n",
        "<polygon fill=\"none\" points=\"89,-35 89,-56 102,-56 102,-35 89,-35\" stroke=\"#000000\"/>\n",
-       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"92\" y=\"-41.8\">6</text>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"92\" y=\"-41.8\">8</text>\n",
        "</g>\n",
        "<!-- edges -->\n",
        "<g class=\"node\" id=\"node2\">\n",
        "<title>edges</title>\n",
-       "<polygon fill=\"#00ffff\" points=\"136,-109 136,-130 197,-130 197,-109 136,-109\" stroke=\"transparent\"/>\n",
-       "<polyline fill=\"none\" points=\"136,-109 197,-109 \" stroke=\"#000000\"/>\n",
-       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"151\" y=\"-115.8\">edges</text>\n",
-       "<polygon fill=\"#00ffff\" points=\"197,-109 197,-130 244,-130 244,-109 197,-109\" stroke=\"transparent\"/>\n",
-       "<polyline fill=\"none\" points=\"197,-109 244,-109 \" stroke=\"#000000\"/>\n",
-       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"217\" y=\"-115.8\">1</text>\n",
-       "<polygon fill=\"#00ffff\" points=\"244,-109 244,-130 282,-130 282,-109 244,-109\" stroke=\"transparent\"/>\n",
-       "<polyline fill=\"none\" points=\"244,-109 282,-109 \" stroke=\"#000000\"/>\n",
-       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"259.5\" y=\"-115.8\">2</text>\n",
-       "<polygon fill=\"#00ffff\" points=\"282,-109 282,-130 309,-130 309,-109 282,-109\" stroke=\"transparent\"/>\n",
-       "<polyline fill=\"none\" points=\"282,-109 309,-109 \" stroke=\"#000000\"/>\n",
-       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"292\" y=\"-115.8\">3</text>\n",
-       "<polygon fill=\"#00ffff\" points=\"309,-109 309,-130 352,-130 352,-109 309,-109\" stroke=\"transparent\"/>\n",
-       "<polyline fill=\"none\" points=\"309,-109 352,-109 \" stroke=\"#000000\"/>\n",
-       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"327\" y=\"-115.8\">4</text>\n",
-       "<polygon fill=\"#00ffff\" points=\"352,-109 352,-130 389,-130 389,-109 352,-109\" stroke=\"transparent\"/>\n",
-       "<polyline fill=\"none\" points=\"352,-109 389,-109 \" stroke=\"#000000\"/>\n",
-       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"367\" y=\"-115.8\">5</text>\n",
-       "<polygon fill=\"#00ffff\" points=\"389,-109 389,-130 409,-130 409,-109 389,-109\" stroke=\"transparent\"/>\n",
-       "<polyline fill=\"none\" points=\"389,-109 409,-109 \" stroke=\"#000000\"/>\n",
-       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"395.5\" y=\"-115.8\">6</text>\n",
-       "<polygon fill=\"none\" points=\"136,-88 136,-109 197,-109 197,-88 136,-88\" stroke=\"#000000\"/>\n",
-       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"153\" y=\"-94.8\">cond</text>\n",
-       "<polygon fill=\"none\" points=\"197,-88 197,-109 244,-109 244,-88 197,-88\" stroke=\"#000000\"/>\n",
-       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"200\" y=\"-94.8\">!a &amp; !b</text>\n",
-       "<polygon fill=\"none\" points=\"244,-88 244,-109 282,-109 282,-88 244,-88\" stroke=\"#000000\"/>\n",
-       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"247\" y=\"-94.8\">a &amp; b</text>\n",
-       "<polygon fill=\"none\" points=\"282,-88 282,-109 309,-109 309,-88 282,-88\" stroke=\"#000000\"/>\n",
-       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"292\" y=\"-94.8\">0</text>\n",
-       "<polygon fill=\"none\" points=\"309,-88 309,-109 352,-109 352,-88 309,-88\" stroke=\"#000000\"/>\n",
-       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"312\" y=\"-94.8\">!a &amp; b</text>\n",
-       "<polygon fill=\"none\" points=\"352,-88 352,-109 389,-109 389,-88 352,-88\" stroke=\"#000000\"/>\n",
-       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"367\" y=\"-94.8\">1</text>\n",
-       "<polygon fill=\"none\" points=\"389,-88 389,-109 409,-109 409,-88 389,-88\" stroke=\"#000000\"/>\n",
-       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"395.5\" y=\"-94.8\">1</text>\n",
-       "<polygon fill=\"none\" points=\"136,-67 136,-88 197,-88 197,-67 136,-67\" stroke=\"#000000\"/>\n",
-       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"157\" y=\"-73.8\">acc</text>\n",
-       "<polygon fill=\"none\" points=\"197,-67 197,-88 244,-88 244,-67 197,-67\" stroke=\"#000000\"/>\n",
-       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"210\" y=\"-73.8\">{0}</text>\n",
-       "<polygon fill=\"none\" points=\"244,-67 244,-88 282,-88 282,-67 244,-67\" stroke=\"#000000\"/>\n",
-       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"256\" y=\"-73.8\">{}</text>\n",
-       "<polygon fill=\"none\" points=\"282,-67 282,-88 309,-88 309,-67 282,-67\" stroke=\"#000000\"/>\n",
-       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"285\" y=\"-73.8\">{0}</text>\n",
-       "<polygon fill=\"none\" points=\"309,-67 309,-88 352,-88 352,-67 309,-67\" stroke=\"#000000\"/>\n",
-       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"320\" y=\"-73.8\">{1}</text>\n",
-       "<polygon fill=\"none\" points=\"352,-67 352,-88 389,-88 389,-67 352,-67\" stroke=\"#000000\"/>\n",
-       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"355\" y=\"-73.8\">{0,1}</text>\n",
-       "<polygon fill=\"none\" points=\"389,-67 389,-88 409,-88 409,-67 389,-67\" stroke=\"#000000\"/>\n",
-       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"392\" y=\"-73.8\">{}</text>\n",
-       "<polygon fill=\"none\" points=\"136,-46 136,-67 197,-67 197,-46 136,-46\" stroke=\"#000000\"/>\n",
-       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"158.5\" y=\"-52.8\">dst</text>\n",
-       "<polygon fill=\"#ffff00\" points=\"197,-46 197,-67 244,-67 244,-46 197,-46\" stroke=\"transparent\"/>\n",
-       "<polygon fill=\"none\" points=\"197,-46 197,-67 244,-67 244,-46 197,-46\" stroke=\"#000000\"/>\n",
-       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"217\" y=\"-52.8\">1</text>\n",
-       "<polygon fill=\"#ffff00\" points=\"244,-46 244,-67 282,-67 282,-46 244,-46\" stroke=\"transparent\"/>\n",
-       "<polygon fill=\"none\" points=\"244,-46 244,-67 282,-67 282,-46 244,-46\" stroke=\"#000000\"/>\n",
-       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"259.5\" y=\"-52.8\">0</text>\n",
-       "<polygon fill=\"#ffff00\" points=\"282,-46 282,-67 309,-67 309,-46 282,-46\" stroke=\"transparent\"/>\n",
-       "<polygon fill=\"none\" points=\"282,-46 282,-67 309,-67 309,-46 282,-46\" stroke=\"#000000\"/>\n",
-       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"292\" y=\"-52.8\">0</text>\n",
-       "<polygon fill=\"#ffff00\" points=\"309,-46 309,-67 352,-67 352,-46 309,-46\" stroke=\"transparent\"/>\n",
-       "<polygon fill=\"none\" points=\"309,-46 309,-67 352,-67 352,-46 309,-46\" stroke=\"#000000\"/>\n",
-       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"327\" y=\"-52.8\">1</text>\n",
-       "<polygon fill=\"#ffff00\" points=\"352,-46 352,-67 389,-67 389,-46 352,-46\" stroke=\"transparent\"/>\n",
-       "<polygon fill=\"none\" points=\"352,-46 352,-67 389,-67 389,-46 352,-46\" stroke=\"#000000\"/>\n",
-       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"367\" y=\"-52.8\">1</text>\n",
-       "<polygon fill=\"#ffff00\" points=\"389,-46 389,-67 409,-67 409,-46 389,-46\" stroke=\"transparent\"/>\n",
-       "<polygon fill=\"none\" points=\"389,-46 389,-67 409,-67 409,-46 389,-46\" stroke=\"#000000\"/>\n",
-       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"395.5\" y=\"-52.8\">0</text>\n",
-       "<polygon fill=\"none\" points=\"136,-25 136,-46 197,-46 197,-25 136,-25\" stroke=\"#000000\"/>\n",
-       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"139\" y=\"-31.8\">next_succ</text>\n",
-       "<polygon fill=\"none\" points=\"197,-25 197,-46 244,-46 244,-25 197,-25\" stroke=\"#000000\"/>\n",
-       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"217\" y=\"-31.8\">0</text>\n",
-       "<polygon fill=\"#00ffff\" points=\"244,-25 244,-46 282,-46 282,-25 244,-25\" stroke=\"transparent\"/>\n",
-       "<polygon fill=\"none\" points=\"244,-25 244,-46 282,-46 282,-25 244,-25\" stroke=\"#000000\"/>\n",
-       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"259.5\" y=\"-31.8\">3</text>\n",
-       "<polygon fill=\"#00ffff\" points=\"282,-25 282,-46 309,-46 309,-25 282,-25\" stroke=\"transparent\"/>\n",
-       "<polygon fill=\"none\" points=\"282,-25 282,-46 309,-46 309,-25 282,-25\" stroke=\"#000000\"/>\n",
-       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"292\" y=\"-31.8\">4</text>\n",
-       "<polygon fill=\"#00ffff\" points=\"309,-25 309,-46 352,-46 352,-25 309,-25\" stroke=\"transparent\"/>\n",
-       "<polygon fill=\"none\" points=\"309,-25 309,-46 352,-46 352,-25 309,-25\" stroke=\"#000000\"/>\n",
-       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"327\" y=\"-31.8\">5</text>\n",
-       "<polygon fill=\"none\" points=\"352,-25 352,-46 389,-46 389,-25 352,-25\" stroke=\"#000000\"/>\n",
-       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"367\" y=\"-31.8\">0</text>\n",
-       "<polygon fill=\"none\" points=\"389,-25 389,-46 409,-46 409,-25 389,-25\" stroke=\"#000000\"/>\n",
-       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"395.5\" y=\"-31.8\">0</text>\n",
-       "<polygon fill=\"none\" points=\"136,-4 136,-25 197,-25 197,-4 136,-4\" stroke=\"#000000\"/>\n",
-       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"158.5\" y=\"-10.8\">src</text>\n",
-       "<polygon fill=\"#ffff00\" points=\"197,-4 197,-25 244,-25 244,-4 197,-4\" stroke=\"transparent\"/>\n",
-       "<polygon fill=\"none\" points=\"197,-4 197,-25 244,-25 244,-4 197,-4\" stroke=\"#000000\"/>\n",
-       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"217\" y=\"-10.8\">0</text>\n",
-       "<polygon fill=\"#ffff00\" points=\"244,-4 244,-25 282,-25 282,-4 244,-4\" stroke=\"transparent\"/>\n",
-       "<polygon fill=\"none\" points=\"244,-4 244,-25 282,-25 282,-4 244,-4\" stroke=\"#000000\"/>\n",
-       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"259.5\" y=\"-10.8\">1</text>\n",
-       "<polygon fill=\"#ffff00\" points=\"282,-4 282,-25 309,-25 309,-4 282,-4\" stroke=\"transparent\"/>\n",
-       "<polygon fill=\"none\" points=\"282,-4 282,-25 309,-25 309,-4 282,-4\" stroke=\"#000000\"/>\n",
-       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"292\" y=\"-10.8\">1</text>\n",
-       "<polygon fill=\"#ffff00\" points=\"309,-4 309,-25 352,-25 352,-4 309,-4\" stroke=\"transparent\"/>\n",
-       "<polygon fill=\"none\" points=\"309,-4 309,-25 352,-25 352,-4 309,-4\" stroke=\"#000000\"/>\n",
-       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"327\" y=\"-10.8\">1</text>\n",
-       "<polygon fill=\"#ffff00\" points=\"352,-4 352,-25 389,-25 389,-4 352,-4\" stroke=\"transparent\"/>\n",
-       "<polygon fill=\"none\" points=\"352,-4 352,-25 389,-25 389,-4 352,-4\" stroke=\"#000000\"/>\n",
-       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"367\" y=\"-10.8\">1</text>\n",
-       "<polygon fill=\"#ffff00\" points=\"389,-4 389,-25 409,-25 409,-4 389,-4\" stroke=\"transparent\"/>\n",
-       "<polygon fill=\"none\" points=\"389,-4 389,-25 409,-25 409,-4 389,-4\" stroke=\"#000000\"/>\n",
-       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"395.5\" y=\"-10.8\">2</text>\n",
+       "<polygon fill=\"#00ffff\" points=\"137,-109 137,-130 198,-130 198,-109 137,-109\" stroke=\"transparent\"/>\n",
+       "<polyline fill=\"none\" points=\"137,-109 198,-109 \" stroke=\"#000000\"/>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"152\" y=\"-115.8\">edges</text>\n",
+       "<polygon fill=\"#00ffff\" points=\"198,-109 198,-130 241,-130 241,-109 198,-109\" stroke=\"transparent\"/>\n",
+       "<polyline fill=\"none\" points=\"198,-109 241,-109 \" stroke=\"#000000\"/>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"216\" y=\"-115.8\">1</text>\n",
+       "<polygon fill=\"#00ffff\" points=\"241,-109 241,-130 288,-130 288,-109 241,-109\" stroke=\"transparent\"/>\n",
+       "<polyline fill=\"none\" points=\"241,-109 288,-109 \" stroke=\"#000000\"/>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"261\" y=\"-115.8\">2</text>\n",
+       "<polygon fill=\"#00ffff\" points=\"288,-109 288,-130 308,-130 308,-109 288,-109\" stroke=\"transparent\"/>\n",
+       "<polyline fill=\"none\" points=\"288,-109 308,-109 \" stroke=\"#000000\"/>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"294.5\" y=\"-115.8\">3</text>\n",
+       "<polygon fill=\"#00ffff\" points=\"308,-109 308,-130 351,-130 351,-109 308,-109\" stroke=\"transparent\"/>\n",
+       "<polyline fill=\"none\" points=\"308,-109 351,-109 \" stroke=\"#000000\"/>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"326\" y=\"-115.8\">4</text>\n",
+       "<polygon fill=\"#00ffff\" points=\"351,-109 351,-130 398,-130 398,-109 351,-109\" stroke=\"transparent\"/>\n",
+       "<polyline fill=\"none\" points=\"351,-109 398,-109 \" stroke=\"#000000\"/>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"371\" y=\"-115.8\">5</text>\n",
+       "<polygon fill=\"#00ffff\" points=\"398,-109 398,-130 441,-130 441,-109 398,-109\" stroke=\"transparent\"/>\n",
+       "<polyline fill=\"none\" points=\"398,-109 441,-109 \" stroke=\"#000000\"/>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"416\" y=\"-115.8\">6</text>\n",
+       "<polygon fill=\"#00ffff\" points=\"441,-109 441,-130 478,-130 478,-109 441,-109\" stroke=\"transparent\"/>\n",
+       "<polyline fill=\"none\" points=\"441,-109 478,-109 \" stroke=\"#000000\"/>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"456\" y=\"-115.8\">7</text>\n",
+       "<polygon fill=\"#00ffff\" points=\"478,-109 478,-130 498,-130 498,-109 478,-109\" stroke=\"transparent\"/>\n",
+       "<polyline fill=\"none\" points=\"478,-109 498,-109 \" stroke=\"#000000\"/>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"484.5\" y=\"-115.8\">8</text>\n",
+       "<polygon fill=\"none\" points=\"137,-88 137,-109 198,-109 198,-88 137,-88\" stroke=\"#000000\"/>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"154\" y=\"-94.8\">cond</text>\n",
+       "<polygon fill=\"none\" points=\"198,-88 198,-109 241,-109 241,-88 198,-88\" stroke=\"#000000\"/>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"201\" y=\"-94.8\">a &amp; !b</text>\n",
+       "<polygon fill=\"none\" points=\"241,-88 241,-109 288,-109 288,-88 241,-88\" stroke=\"#000000\"/>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"244\" y=\"-94.8\">!a &amp; !b</text>\n",
+       "<polygon fill=\"none\" points=\"288,-88 288,-109 308,-109 308,-88 288,-88\" stroke=\"#000000\"/>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"294.5\" y=\"-94.8\">0</text>\n",
+       "<polygon fill=\"none\" points=\"308,-88 308,-109 351,-109 351,-88 308,-88\" stroke=\"#000000\"/>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"311\" y=\"-94.8\">a &amp; !b</text>\n",
+       "<polygon fill=\"none\" points=\"351,-88 351,-109 398,-109 398,-88 351,-88\" stroke=\"#000000\"/>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"354\" y=\"-94.8\">!a &amp; !b</text>\n",
+       "<polygon fill=\"none\" points=\"398,-88 398,-109 441,-109 441,-88 398,-88\" stroke=\"#000000\"/>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"401\" y=\"-94.8\">!a &amp; b</text>\n",
+       "<polygon fill=\"none\" points=\"441,-88 441,-109 478,-109 478,-88 441,-88\" stroke=\"#000000\"/>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"456\" y=\"-94.8\">1</text>\n",
+       "<polygon fill=\"none\" points=\"478,-88 478,-109 498,-109 498,-88 478,-88\" stroke=\"#000000\"/>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"484.5\" y=\"-94.8\">1</text>\n",
+       "<polygon fill=\"none\" points=\"137,-67 137,-88 198,-88 198,-67 137,-67\" stroke=\"#000000\"/>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"158\" y=\"-73.8\">acc</text>\n",
+       "<polygon fill=\"none\" points=\"198,-67 198,-88 241,-88 241,-67 198,-67\" stroke=\"#000000\"/>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"209\" y=\"-73.8\">{0}</text>\n",
+       "<polygon fill=\"none\" points=\"241,-67 241,-88 288,-88 288,-67 241,-67\" stroke=\"#000000\"/>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"254\" y=\"-73.8\">{0}</text>\n",
+       "<polygon fill=\"none\" points=\"288,-67 288,-88 308,-88 308,-67 288,-67\" stroke=\"#000000\"/>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"291\" y=\"-73.8\">{}</text>\n",
+       "<polygon fill=\"none\" points=\"308,-67 308,-88 351,-88 351,-67 308,-67\" stroke=\"#000000\"/>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"319\" y=\"-73.8\">{0}</text>\n",
+       "<polygon fill=\"none\" points=\"351,-67 351,-88 398,-88 398,-67 351,-67\" stroke=\"#000000\"/>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"364\" y=\"-73.8\">{0}</text>\n",
+       "<polygon fill=\"none\" points=\"398,-67 398,-88 441,-88 441,-67 398,-67\" stroke=\"#000000\"/>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"409\" y=\"-73.8\">{1}</text>\n",
+       "<polygon fill=\"none\" points=\"441,-67 441,-88 478,-88 478,-67 441,-67\" stroke=\"#000000\"/>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"444\" y=\"-73.8\">{0,1}</text>\n",
+       "<polygon fill=\"none\" points=\"478,-67 478,-88 498,-88 498,-67 478,-67\" stroke=\"#000000\"/>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"481\" y=\"-73.8\">{}</text>\n",
+       "<polygon fill=\"none\" points=\"137,-46 137,-67 198,-67 198,-46 137,-46\" stroke=\"#000000\"/>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"159.5\" y=\"-52.8\">dst</text>\n",
+       "<polygon fill=\"#ffff00\" points=\"198,-46 198,-67 241,-67 241,-46 198,-46\" stroke=\"transparent\"/>\n",
+       "<polygon fill=\"none\" points=\"198,-46 198,-67 241,-67 241,-46 198,-46\" stroke=\"#000000\"/>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"216\" y=\"-52.8\">0</text>\n",
+       "<polygon fill=\"#ffff00\" points=\"241,-46 241,-67 288,-67 288,-46 241,-46\" stroke=\"transparent\"/>\n",
+       "<polygon fill=\"none\" points=\"241,-46 241,-67 288,-67 288,-46 241,-46\" stroke=\"#000000\"/>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"261\" y=\"-52.8\">1</text>\n",
+       "<polygon fill=\"#ffff00\" points=\"288,-46 288,-67 308,-67 308,-46 288,-46\" stroke=\"transparent\"/>\n",
+       "<polygon fill=\"none\" points=\"288,-46 288,-67 308,-67 308,-46 288,-46\" stroke=\"#000000\"/>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"294.5\" y=\"-52.8\">0</text>\n",
+       "<polygon fill=\"#ffff00\" points=\"308,-46 308,-67 351,-67 351,-46 308,-46\" stroke=\"transparent\"/>\n",
+       "<polygon fill=\"none\" points=\"308,-46 308,-67 351,-67 351,-46 308,-46\" stroke=\"#000000\"/>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"326\" y=\"-52.8\">0</text>\n",
+       "<polygon fill=\"#ffff00\" points=\"351,-46 351,-67 398,-67 398,-46 351,-46\" stroke=\"transparent\"/>\n",
+       "<polygon fill=\"none\" points=\"351,-46 351,-67 398,-67 398,-46 351,-46\" stroke=\"#000000\"/>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"371\" y=\"-52.8\">1</text>\n",
+       "<polygon fill=\"#ffff00\" points=\"398,-46 398,-67 441,-67 441,-46 398,-46\" stroke=\"transparent\"/>\n",
+       "<polygon fill=\"none\" points=\"398,-46 398,-67 441,-67 441,-46 398,-46\" stroke=\"#000000\"/>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"416\" y=\"-52.8\">1</text>\n",
+       "<polygon fill=\"#ffff00\" points=\"441,-46 441,-67 478,-67 478,-46 441,-46\" stroke=\"transparent\"/>\n",
+       "<polygon fill=\"none\" points=\"441,-46 441,-67 478,-67 478,-46 441,-46\" stroke=\"#000000\"/>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"456\" y=\"-52.8\">1</text>\n",
+       "<polygon fill=\"#ffff00\" points=\"478,-46 478,-67 498,-67 498,-46 478,-46\" stroke=\"transparent\"/>\n",
+       "<polygon fill=\"none\" points=\"478,-46 478,-67 498,-67 498,-46 478,-46\" stroke=\"#000000\"/>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"484.5\" y=\"-52.8\">0</text>\n",
+       "<polygon fill=\"none\" points=\"137,-25 137,-46 198,-46 198,-25 137,-25\" stroke=\"#000000\"/>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"140\" y=\"-31.8\">next_succ</text>\n",
+       "<polygon fill=\"#00ffff\" points=\"198,-25 198,-46 241,-46 241,-25 198,-25\" stroke=\"transparent\"/>\n",
+       "<polygon fill=\"none\" points=\"198,-25 198,-46 241,-46 241,-25 198,-25\" stroke=\"#000000\"/>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"216\" y=\"-31.8\">2</text>\n",
+       "<polygon fill=\"none\" points=\"241,-25 241,-46 288,-46 288,-25 241,-25\" stroke=\"#000000\"/>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"261\" y=\"-31.8\">0</text>\n",
+       "<polygon fill=\"#00ffff\" points=\"288,-25 288,-46 308,-46 308,-25 288,-25\" stroke=\"transparent\"/>\n",
+       "<polygon fill=\"none\" points=\"288,-25 288,-46 308,-46 308,-25 288,-25\" stroke=\"#000000\"/>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"294.5\" y=\"-31.8\">4</text>\n",
+       "<polygon fill=\"#00ffff\" points=\"308,-25 308,-46 351,-46 351,-25 308,-25\" stroke=\"transparent\"/>\n",
+       "<polygon fill=\"none\" points=\"308,-25 308,-46 351,-46 351,-25 308,-25\" stroke=\"#000000\"/>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"326\" y=\"-31.8\">5</text>\n",
+       "<polygon fill=\"#00ffff\" points=\"351,-25 351,-46 398,-46 398,-25 351,-25\" stroke=\"transparent\"/>\n",
+       "<polygon fill=\"none\" points=\"351,-25 351,-46 398,-46 398,-25 351,-25\" stroke=\"#000000\"/>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"371\" y=\"-31.8\">6</text>\n",
+       "<polygon fill=\"#00ffff\" points=\"398,-25 398,-46 441,-46 441,-25 398,-25\" stroke=\"transparent\"/>\n",
+       "<polygon fill=\"none\" points=\"398,-25 398,-46 441,-46 441,-25 398,-25\" stroke=\"#000000\"/>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"416\" y=\"-31.8\">7</text>\n",
+       "<polygon fill=\"none\" points=\"441,-25 441,-46 478,-46 478,-25 441,-25\" stroke=\"#000000\"/>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"456\" y=\"-31.8\">0</text>\n",
+       "<polygon fill=\"none\" points=\"478,-25 478,-46 498,-46 498,-25 478,-25\" stroke=\"#000000\"/>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"484.5\" y=\"-31.8\">0</text>\n",
+       "<polygon fill=\"none\" points=\"137,-4 137,-25 198,-25 198,-4 137,-4\" stroke=\"#000000\"/>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"159.5\" y=\"-10.8\">src</text>\n",
+       "<polygon fill=\"#ffff00\" points=\"198,-4 198,-25 241,-25 241,-4 198,-4\" stroke=\"transparent\"/>\n",
+       "<polygon fill=\"none\" points=\"198,-4 198,-25 241,-25 241,-4 198,-4\" stroke=\"#000000\"/>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"216\" y=\"-10.8\">0</text>\n",
+       "<polygon fill=\"#ffff00\" points=\"241,-4 241,-25 288,-25 288,-4 241,-4\" stroke=\"transparent\"/>\n",
+       "<polygon fill=\"none\" points=\"241,-4 241,-25 288,-25 288,-4 241,-4\" stroke=\"#000000\"/>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"261\" y=\"-10.8\">0</text>\n",
+       "<polygon fill=\"#ffff00\" points=\"288,-4 288,-25 308,-25 308,-4 288,-4\" stroke=\"transparent\"/>\n",
+       "<polygon fill=\"none\" points=\"288,-4 288,-25 308,-25 308,-4 288,-4\" stroke=\"#000000\"/>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"294.5\" y=\"-10.8\">1</text>\n",
+       "<polygon fill=\"#ffff00\" points=\"308,-4 308,-25 351,-25 351,-4 308,-4\" stroke=\"transparent\"/>\n",
+       "<polygon fill=\"none\" points=\"308,-4 308,-25 351,-25 351,-4 308,-4\" stroke=\"#000000\"/>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"326\" y=\"-10.8\">1</text>\n",
+       "<polygon fill=\"#ffff00\" points=\"351,-4 351,-25 398,-25 398,-4 351,-4\" stroke=\"transparent\"/>\n",
+       "<polygon fill=\"none\" points=\"351,-4 351,-25 398,-25 398,-4 351,-4\" stroke=\"#000000\"/>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"371\" y=\"-10.8\">1</text>\n",
+       "<polygon fill=\"#ffff00\" points=\"398,-4 398,-25 441,-25 441,-4 398,-4\" stroke=\"transparent\"/>\n",
+       "<polygon fill=\"none\" points=\"398,-4 398,-25 441,-25 441,-4 398,-4\" stroke=\"#000000\"/>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"416\" y=\"-10.8\">1</text>\n",
+       "<polygon fill=\"#ffff00\" points=\"441,-4 441,-25 478,-25 478,-4 441,-4\" stroke=\"transparent\"/>\n",
+       "<polygon fill=\"none\" points=\"441,-4 441,-25 478,-25 478,-4 441,-4\" stroke=\"#000000\"/>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"456\" y=\"-10.8\">1</text>\n",
+       "<polygon fill=\"#ffff00\" points=\"478,-4 478,-25 498,-25 498,-4 478,-4\" stroke=\"transparent\"/>\n",
+       "<polygon fill=\"none\" points=\"478,-4 478,-25 498,-25 498,-4 478,-4\" stroke=\"#000000\"/>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"484.5\" y=\"-10.8\">2</text>\n",
        "</g>\n",
        "</g>\n",
        "</svg>"
@@ -2714,12 +2769,14 @@
      "name": "stdout",
      "output_type": "stream",
      "text": [
-      "edges[1].src=0, edges[1].dst=1\n",
-      "edges[2].src=1, edges[2].dst=0\n",
+      "edges[1].src=0, edges[1].dst=0\n",
+      "edges[2].src=0, edges[2].dst=1\n",
       "edges[3].src=1, edges[3].dst=0\n",
-      "edges[4].src=1, edges[4].dst=1\n",
+      "edges[4].src=1, edges[4].dst=0\n",
       "edges[5].src=1, edges[5].dst=1\n",
-      "edges[6].src=2, edges[6].dst=0\n"
+      "edges[6].src=1, edges[6].dst=1\n",
+      "edges[7].src=1, edges[7].dst=1\n",
+      "edges[8].src=2, edges[8].dst=0\n"
      ]
     }
    ],
@@ -2756,10 +2813,10 @@
     {
      "data": {
       "image/svg+xml": [
-       "<svg height=\"142pt\" viewBox=\"0.00 0.00 398.00 142.00\" width=\"398pt\" xmlns=\"http://www.w3.org/2000/svg\" xmlns:xlink=\"http://www.w3.org/1999/xlink\">\n",
+       "<svg height=\"142pt\" viewBox=\"0.00 0.00 493.50 142.00\" width=\"494pt\" xmlns=\"http://www.w3.org/2000/svg\" xmlns:xlink=\"http://www.w3.org/1999/xlink\">\n",
        "<g class=\"graph\" id=\"graph0\" transform=\"scale(1 1) rotate(0) translate(4 138)\">\n",
        "<title>g</title>\n",
-       "<polygon fill=\"#ffffff\" points=\"-4,4 -4,-138 394,-138 394,4 -4,4\" stroke=\"transparent\"/>\n",
+       "<polygon fill=\"#ffffff\" points=\"-4,4 -4,-138 489.5,-138 489.5,4 -4,4\" stroke=\"transparent\"/>\n",
        "<!-- states -->\n",
        "<g class=\"node\" id=\"node1\">\n",
        "<title>states</title>\n",
@@ -2782,115 +2839,147 @@
        "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"66\" y=\"-62.8\">1</text>\n",
        "<polygon fill=\"#00ffff\" points=\"76,-56 76,-77 89,-77 89,-56 76,-56\" stroke=\"transparent\"/>\n",
        "<polygon fill=\"none\" points=\"76,-56 76,-77 89,-77 89,-56 76,-56\" stroke=\"#000000\"/>\n",
-       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"79\" y=\"-62.8\">2</text>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"79\" y=\"-62.8\">3</text>\n",
        "<polygon fill=\"#00ffff\" points=\"89,-56 89,-77 102,-77 102,-56 89,-56\" stroke=\"transparent\"/>\n",
        "<polygon fill=\"none\" points=\"89,-56 89,-77 102,-77 102,-56 89,-56\" stroke=\"#000000\"/>\n",
-       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"92\" y=\"-62.8\">5</text>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"92\" y=\"-62.8\">7</text>\n",
        "<polygon fill=\"none\" points=\"8,-35 8,-56 63,-56 63,-35 8,-35\" stroke=\"#000000\"/>\n",
        "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"11\" y=\"-41.8\">succ_tail</text>\n",
        "<polygon fill=\"#00ffff\" points=\"63,-35 63,-56 76,-56 76,-35 63,-35\" stroke=\"transparent\"/>\n",
        "<polygon fill=\"none\" points=\"63,-35 63,-56 76,-56 76,-35 63,-35\" stroke=\"#000000\"/>\n",
-       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"66\" y=\"-41.8\">1</text>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"66\" y=\"-41.8\">2</text>\n",
        "<polygon fill=\"#00ffff\" points=\"76,-35 76,-56 89,-56 89,-35 76,-35\" stroke=\"transparent\"/>\n",
        "<polygon fill=\"none\" points=\"76,-35 76,-56 89,-56 89,-35 76,-35\" stroke=\"#000000\"/>\n",
-       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"79\" y=\"-41.8\">4</text>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"79\" y=\"-41.8\">6</text>\n",
        "<polygon fill=\"#00ffff\" points=\"89,-35 89,-56 102,-56 102,-35 89,-35\" stroke=\"transparent\"/>\n",
        "<polygon fill=\"none\" points=\"89,-35 89,-56 102,-56 102,-35 89,-35\" stroke=\"#000000\"/>\n",
-       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"92\" y=\"-41.8\">5</text>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"92\" y=\"-41.8\">7</text>\n",
        "</g>\n",
        "<!-- edges -->\n",
        "<g class=\"node\" id=\"node2\">\n",
        "<title>edges</title>\n",
-       "<polygon fill=\"#00ffff\" points=\"136,-109 136,-130 197,-130 197,-109 136,-109\" stroke=\"transparent\"/>\n",
-       "<polyline fill=\"none\" points=\"136,-109 197,-109 \" stroke=\"#000000\"/>\n",
-       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"151\" y=\"-115.8\">edges</text>\n",
-       "<polygon fill=\"#00ffff\" points=\"197,-109 197,-130 244,-130 244,-109 197,-109\" stroke=\"transparent\"/>\n",
-       "<polyline fill=\"none\" points=\"197,-109 244,-109 \" stroke=\"#000000\"/>\n",
-       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"217\" y=\"-115.8\">1</text>\n",
-       "<polygon fill=\"#00ffff\" points=\"244,-109 244,-130 282,-130 282,-109 244,-109\" stroke=\"transparent\"/>\n",
-       "<polyline fill=\"none\" points=\"244,-109 282,-109 \" stroke=\"#000000\"/>\n",
-       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"259.5\" y=\"-115.8\">2</text>\n",
-       "<polygon fill=\"#00ffff\" points=\"282,-109 282,-130 325,-130 325,-109 282,-109\" stroke=\"transparent\"/>\n",
-       "<polyline fill=\"none\" points=\"282,-109 325,-109 \" stroke=\"#000000\"/>\n",
-       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"300\" y=\"-115.8\">3</text>\n",
-       "<polygon fill=\"#00ffff\" points=\"325,-109 325,-130 362,-130 362,-109 325,-109\" stroke=\"transparent\"/>\n",
-       "<polyline fill=\"none\" points=\"325,-109 362,-109 \" stroke=\"#000000\"/>\n",
-       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"340\" y=\"-115.8\">4</text>\n",
-       "<polygon fill=\"#00ffff\" points=\"362,-109 362,-130 382,-130 382,-109 362,-109\" stroke=\"transparent\"/>\n",
-       "<polyline fill=\"none\" points=\"362,-109 382,-109 \" stroke=\"#000000\"/>\n",
-       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"368.5\" y=\"-115.8\">5</text>\n",
-       "<polygon fill=\"none\" points=\"136,-88 136,-109 197,-109 197,-88 136,-88\" stroke=\"#000000\"/>\n",
-       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"153\" y=\"-94.8\">cond</text>\n",
-       "<polygon fill=\"none\" points=\"197,-88 197,-109 244,-109 244,-88 197,-88\" stroke=\"#000000\"/>\n",
-       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"200\" y=\"-94.8\">!a &amp; !b</text>\n",
-       "<polygon fill=\"none\" points=\"244,-88 244,-109 282,-109 282,-88 244,-88\" stroke=\"#000000\"/>\n",
-       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"247\" y=\"-94.8\">a &amp; b</text>\n",
-       "<polygon fill=\"none\" points=\"282,-88 282,-109 325,-109 325,-88 282,-88\" stroke=\"#000000\"/>\n",
-       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"285\" y=\"-94.8\">!a &amp; b</text>\n",
-       "<polygon fill=\"none\" points=\"325,-88 325,-109 362,-109 362,-88 325,-88\" stroke=\"#000000\"/>\n",
-       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"340\" y=\"-94.8\">1</text>\n",
-       "<polygon fill=\"none\" points=\"362,-88 362,-109 382,-109 382,-88 362,-88\" stroke=\"#000000\"/>\n",
-       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"368.5\" y=\"-94.8\">1</text>\n",
-       "<polygon fill=\"none\" points=\"136,-67 136,-88 197,-88 197,-67 136,-67\" stroke=\"#000000\"/>\n",
-       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"157\" y=\"-73.8\">acc</text>\n",
-       "<polygon fill=\"none\" points=\"197,-67 197,-88 244,-88 244,-67 197,-67\" stroke=\"#000000\"/>\n",
-       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"210\" y=\"-73.8\">{0}</text>\n",
-       "<polygon fill=\"none\" points=\"244,-67 244,-88 282,-88 282,-67 244,-67\" stroke=\"#000000\"/>\n",
-       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"256\" y=\"-73.8\">{}</text>\n",
-       "<polygon fill=\"none\" points=\"282,-67 282,-88 325,-88 325,-67 282,-67\" stroke=\"#000000\"/>\n",
-       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"293\" y=\"-73.8\">{1}</text>\n",
-       "<polygon fill=\"none\" points=\"325,-67 325,-88 362,-88 362,-67 325,-67\" stroke=\"#000000\"/>\n",
-       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"328\" y=\"-73.8\">{0,1}</text>\n",
-       "<polygon fill=\"none\" points=\"362,-67 362,-88 382,-88 382,-67 362,-67\" stroke=\"#000000\"/>\n",
-       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"365\" y=\"-73.8\">{}</text>\n",
-       "<polygon fill=\"none\" points=\"136,-46 136,-67 197,-67 197,-46 136,-46\" stroke=\"#000000\"/>\n",
-       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"158.5\" y=\"-52.8\">dst</text>\n",
-       "<polygon fill=\"#ffff00\" points=\"197,-46 197,-67 244,-67 244,-46 197,-46\" stroke=\"transparent\"/>\n",
-       "<polygon fill=\"none\" points=\"197,-46 197,-67 244,-67 244,-46 197,-46\" stroke=\"#000000\"/>\n",
-       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"217\" y=\"-52.8\">1</text>\n",
-       "<polygon fill=\"#ffff00\" points=\"244,-46 244,-67 282,-67 282,-46 244,-46\" stroke=\"transparent\"/>\n",
-       "<polygon fill=\"none\" points=\"244,-46 244,-67 282,-67 282,-46 244,-46\" stroke=\"#000000\"/>\n",
-       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"259.5\" y=\"-52.8\">0</text>\n",
-       "<polygon fill=\"#ffff00\" points=\"282,-46 282,-67 325,-67 325,-46 282,-46\" stroke=\"transparent\"/>\n",
-       "<polygon fill=\"none\" points=\"282,-46 282,-67 325,-67 325,-46 282,-46\" stroke=\"#000000\"/>\n",
-       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"300\" y=\"-52.8\">1</text>\n",
-       "<polygon fill=\"#ffff00\" points=\"325,-46 325,-67 362,-67 362,-46 325,-46\" stroke=\"transparent\"/>\n",
-       "<polygon fill=\"none\" points=\"325,-46 325,-67 362,-67 362,-46 325,-46\" stroke=\"#000000\"/>\n",
-       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"340\" y=\"-52.8\">1</text>\n",
-       "<polygon fill=\"#ffff00\" points=\"362,-46 362,-67 382,-67 382,-46 362,-46\" stroke=\"transparent\"/>\n",
-       "<polygon fill=\"none\" points=\"362,-46 362,-67 382,-67 382,-46 362,-46\" stroke=\"#000000\"/>\n",
-       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"368.5\" y=\"-52.8\">0</text>\n",
-       "<polygon fill=\"none\" points=\"136,-25 136,-46 197,-46 197,-25 136,-25\" stroke=\"#000000\"/>\n",
-       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"139\" y=\"-31.8\">next_succ</text>\n",
-       "<polygon fill=\"none\" points=\"197,-25 197,-46 244,-46 244,-25 197,-25\" stroke=\"#000000\"/>\n",
-       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"217\" y=\"-31.8\">0</text>\n",
-       "<polygon fill=\"#00ffff\" points=\"244,-25 244,-46 282,-46 282,-25 244,-25\" stroke=\"transparent\"/>\n",
-       "<polygon fill=\"none\" points=\"244,-25 244,-46 282,-46 282,-25 244,-25\" stroke=\"#000000\"/>\n",
-       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"259.5\" y=\"-31.8\">3</text>\n",
-       "<polygon fill=\"#00ffff\" points=\"282,-25 282,-46 325,-46 325,-25 282,-25\" stroke=\"transparent\"/>\n",
-       "<polygon fill=\"none\" points=\"282,-25 282,-46 325,-46 325,-25 282,-25\" stroke=\"#000000\"/>\n",
-       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"300\" y=\"-31.8\">4</text>\n",
-       "<polygon fill=\"none\" points=\"325,-25 325,-46 362,-46 362,-25 325,-25\" stroke=\"#000000\"/>\n",
-       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"340\" y=\"-31.8\">0</text>\n",
-       "<polygon fill=\"none\" points=\"362,-25 362,-46 382,-46 382,-25 362,-25\" stroke=\"#000000\"/>\n",
-       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"368.5\" y=\"-31.8\">0</text>\n",
-       "<polygon fill=\"none\" points=\"136,-4 136,-25 197,-25 197,-4 136,-4\" stroke=\"#000000\"/>\n",
-       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"158.5\" y=\"-10.8\">src</text>\n",
-       "<polygon fill=\"#ffff00\" points=\"197,-4 197,-25 244,-25 244,-4 197,-4\" stroke=\"transparent\"/>\n",
-       "<polygon fill=\"none\" points=\"197,-4 197,-25 244,-25 244,-4 197,-4\" stroke=\"#000000\"/>\n",
-       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"217\" y=\"-10.8\">0</text>\n",
-       "<polygon fill=\"#ffff00\" points=\"244,-4 244,-25 282,-25 282,-4 244,-4\" stroke=\"transparent\"/>\n",
-       "<polygon fill=\"none\" points=\"244,-4 244,-25 282,-25 282,-4 244,-4\" stroke=\"#000000\"/>\n",
-       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"259.5\" y=\"-10.8\">1</text>\n",
-       "<polygon fill=\"#ffff00\" points=\"282,-4 282,-25 325,-25 325,-4 282,-4\" stroke=\"transparent\"/>\n",
-       "<polygon fill=\"none\" points=\"282,-4 282,-25 325,-25 325,-4 282,-4\" stroke=\"#000000\"/>\n",
-       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"300\" y=\"-10.8\">1</text>\n",
-       "<polygon fill=\"#ffff00\" points=\"325,-4 325,-25 362,-25 362,-4 325,-4\" stroke=\"transparent\"/>\n",
-       "<polygon fill=\"none\" points=\"325,-4 325,-25 362,-25 362,-4 325,-4\" stroke=\"#000000\"/>\n",
-       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"340\" y=\"-10.8\">1</text>\n",
-       "<polygon fill=\"#ffff00\" points=\"362,-4 362,-25 382,-25 382,-4 362,-4\" stroke=\"transparent\"/>\n",
-       "<polygon fill=\"none\" points=\"362,-4 362,-25 382,-25 382,-4 362,-4\" stroke=\"#000000\"/>\n",
-       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"368.5\" y=\"-10.8\">2</text>\n",
+       "<polygon fill=\"#00ffff\" points=\"137,-109 137,-130 198,-130 198,-109 137,-109\" stroke=\"transparent\"/>\n",
+       "<polyline fill=\"none\" points=\"137,-109 198,-109 \" stroke=\"#000000\"/>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"152\" y=\"-115.8\">edges</text>\n",
+       "<polygon fill=\"#00ffff\" points=\"198,-109 198,-130 241,-130 241,-109 198,-109\" stroke=\"transparent\"/>\n",
+       "<polyline fill=\"none\" points=\"198,-109 241,-109 \" stroke=\"#000000\"/>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"216\" y=\"-115.8\">1</text>\n",
+       "<polygon fill=\"#00ffff\" points=\"241,-109 241,-130 288,-130 288,-109 241,-109\" stroke=\"transparent\"/>\n",
+       "<polyline fill=\"none\" points=\"241,-109 288,-109 \" stroke=\"#000000\"/>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"261\" y=\"-115.8\">2</text>\n",
+       "<polygon fill=\"#00ffff\" points=\"288,-109 288,-130 331,-130 331,-109 288,-109\" stroke=\"transparent\"/>\n",
+       "<polyline fill=\"none\" points=\"288,-109 331,-109 \" stroke=\"#000000\"/>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"306\" y=\"-115.8\">3</text>\n",
+       "<polygon fill=\"#00ffff\" points=\"331,-109 331,-130 378,-130 378,-109 331,-109\" stroke=\"transparent\"/>\n",
+       "<polyline fill=\"none\" points=\"331,-109 378,-109 \" stroke=\"#000000\"/>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"351\" y=\"-115.8\">4</text>\n",
+       "<polygon fill=\"#00ffff\" points=\"378,-109 378,-130 421,-130 421,-109 378,-109\" stroke=\"transparent\"/>\n",
+       "<polyline fill=\"none\" points=\"378,-109 421,-109 \" stroke=\"#000000\"/>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"396\" y=\"-115.8\">5</text>\n",
+       "<polygon fill=\"#00ffff\" points=\"421,-109 421,-130 458,-130 458,-109 421,-109\" stroke=\"transparent\"/>\n",
+       "<polyline fill=\"none\" points=\"421,-109 458,-109 \" stroke=\"#000000\"/>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"436\" y=\"-115.8\">6</text>\n",
+       "<polygon fill=\"#00ffff\" points=\"458,-109 458,-130 478,-130 478,-109 458,-109\" stroke=\"transparent\"/>\n",
+       "<polyline fill=\"none\" points=\"458,-109 478,-109 \" stroke=\"#000000\"/>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"464.5\" y=\"-115.8\">7</text>\n",
+       "<polygon fill=\"none\" points=\"137,-88 137,-109 198,-109 198,-88 137,-88\" stroke=\"#000000\"/>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"154\" y=\"-94.8\">cond</text>\n",
+       "<polygon fill=\"none\" points=\"198,-88 198,-109 241,-109 241,-88 198,-88\" stroke=\"#000000\"/>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"201\" y=\"-94.8\">a &amp; !b</text>\n",
+       "<polygon fill=\"none\" points=\"241,-88 241,-109 288,-109 288,-88 241,-88\" stroke=\"#000000\"/>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"244\" y=\"-94.8\">!a &amp; !b</text>\n",
+       "<polygon fill=\"none\" points=\"288,-88 288,-109 331,-109 331,-88 288,-88\" stroke=\"#000000\"/>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"291\" y=\"-94.8\">a &amp; !b</text>\n",
+       "<polygon fill=\"none\" points=\"331,-88 331,-109 378,-109 378,-88 331,-88\" stroke=\"#000000\"/>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"334\" y=\"-94.8\">!a &amp; !b</text>\n",
+       "<polygon fill=\"none\" points=\"378,-88 378,-109 421,-109 421,-88 378,-88\" stroke=\"#000000\"/>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"381\" y=\"-94.8\">!a &amp; b</text>\n",
+       "<polygon fill=\"none\" points=\"421,-88 421,-109 458,-109 458,-88 421,-88\" stroke=\"#000000\"/>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"436\" y=\"-94.8\">1</text>\n",
+       "<polygon fill=\"none\" points=\"458,-88 458,-109 478,-109 478,-88 458,-88\" stroke=\"#000000\"/>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"464.5\" y=\"-94.8\">1</text>\n",
+       "<polygon fill=\"none\" points=\"137,-67 137,-88 198,-88 198,-67 137,-67\" stroke=\"#000000\"/>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"158\" y=\"-73.8\">acc</text>\n",
+       "<polygon fill=\"none\" points=\"198,-67 198,-88 241,-88 241,-67 198,-67\" stroke=\"#000000\"/>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"209\" y=\"-73.8\">{0}</text>\n",
+       "<polygon fill=\"none\" points=\"241,-67 241,-88 288,-88 288,-67 241,-67\" stroke=\"#000000\"/>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"254\" y=\"-73.8\">{0}</text>\n",
+       "<polygon fill=\"none\" points=\"288,-67 288,-88 331,-88 331,-67 288,-67\" stroke=\"#000000\"/>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"299\" y=\"-73.8\">{0}</text>\n",
+       "<polygon fill=\"none\" points=\"331,-67 331,-88 378,-88 378,-67 331,-67\" stroke=\"#000000\"/>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"344\" y=\"-73.8\">{0}</text>\n",
+       "<polygon fill=\"none\" points=\"378,-67 378,-88 421,-88 421,-67 378,-67\" stroke=\"#000000\"/>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"389\" y=\"-73.8\">{1}</text>\n",
+       "<polygon fill=\"none\" points=\"421,-67 421,-88 458,-88 458,-67 421,-67\" stroke=\"#000000\"/>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"424\" y=\"-73.8\">{0,1}</text>\n",
+       "<polygon fill=\"none\" points=\"458,-67 458,-88 478,-88 478,-67 458,-67\" stroke=\"#000000\"/>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"461\" y=\"-73.8\">{}</text>\n",
+       "<polygon fill=\"none\" points=\"137,-46 137,-67 198,-67 198,-46 137,-46\" stroke=\"#000000\"/>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"159.5\" y=\"-52.8\">dst</text>\n",
+       "<polygon fill=\"#ffff00\" points=\"198,-46 198,-67 241,-67 241,-46 198,-46\" stroke=\"transparent\"/>\n",
+       "<polygon fill=\"none\" points=\"198,-46 198,-67 241,-67 241,-46 198,-46\" stroke=\"#000000\"/>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"216\" y=\"-52.8\">0</text>\n",
+       "<polygon fill=\"#ffff00\" points=\"241,-46 241,-67 288,-67 288,-46 241,-46\" stroke=\"transparent\"/>\n",
+       "<polygon fill=\"none\" points=\"241,-46 241,-67 288,-67 288,-46 241,-46\" stroke=\"#000000\"/>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"261\" y=\"-52.8\">1</text>\n",
+       "<polygon fill=\"#ffff00\" points=\"288,-46 288,-67 331,-67 331,-46 288,-46\" stroke=\"transparent\"/>\n",
+       "<polygon fill=\"none\" points=\"288,-46 288,-67 331,-67 331,-46 288,-46\" stroke=\"#000000\"/>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"306\" y=\"-52.8\">0</text>\n",
+       "<polygon fill=\"#ffff00\" points=\"331,-46 331,-67 378,-67 378,-46 331,-46\" stroke=\"transparent\"/>\n",
+       "<polygon fill=\"none\" points=\"331,-46 331,-67 378,-67 378,-46 331,-46\" stroke=\"#000000\"/>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"351\" y=\"-52.8\">1</text>\n",
+       "<polygon fill=\"#ffff00\" points=\"378,-46 378,-67 421,-67 421,-46 378,-46\" stroke=\"transparent\"/>\n",
+       "<polygon fill=\"none\" points=\"378,-46 378,-67 421,-67 421,-46 378,-46\" stroke=\"#000000\"/>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"396\" y=\"-52.8\">1</text>\n",
+       "<polygon fill=\"#ffff00\" points=\"421,-46 421,-67 458,-67 458,-46 421,-46\" stroke=\"transparent\"/>\n",
+       "<polygon fill=\"none\" points=\"421,-46 421,-67 458,-67 458,-46 421,-46\" stroke=\"#000000\"/>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"436\" y=\"-52.8\">1</text>\n",
+       "<polygon fill=\"#ffff00\" points=\"458,-46 458,-67 478,-67 478,-46 458,-46\" stroke=\"transparent\"/>\n",
+       "<polygon fill=\"none\" points=\"458,-46 458,-67 478,-67 478,-46 458,-46\" stroke=\"#000000\"/>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"464.5\" y=\"-52.8\">0</text>\n",
+       "<polygon fill=\"none\" points=\"137,-25 137,-46 198,-46 198,-25 137,-25\" stroke=\"#000000\"/>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"140\" y=\"-31.8\">next_succ</text>\n",
+       "<polygon fill=\"#00ffff\" points=\"198,-25 198,-46 241,-46 241,-25 198,-25\" stroke=\"transparent\"/>\n",
+       "<polygon fill=\"none\" points=\"198,-25 198,-46 241,-46 241,-25 198,-25\" stroke=\"#000000\"/>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"216\" y=\"-31.8\">2</text>\n",
+       "<polygon fill=\"none\" points=\"241,-25 241,-46 288,-46 288,-25 241,-25\" stroke=\"#000000\"/>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"261\" y=\"-31.8\">0</text>\n",
+       "<polygon fill=\"#00ffff\" points=\"288,-25 288,-46 331,-46 331,-25 288,-25\" stroke=\"transparent\"/>\n",
+       "<polygon fill=\"none\" points=\"288,-25 288,-46 331,-46 331,-25 288,-25\" stroke=\"#000000\"/>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"306\" y=\"-31.8\">4</text>\n",
+       "<polygon fill=\"#00ffff\" points=\"331,-25 331,-46 378,-46 378,-25 331,-25\" stroke=\"transparent\"/>\n",
+       "<polygon fill=\"none\" points=\"331,-25 331,-46 378,-46 378,-25 331,-25\" stroke=\"#000000\"/>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"351\" y=\"-31.8\">5</text>\n",
+       "<polygon fill=\"#00ffff\" points=\"378,-25 378,-46 421,-46 421,-25 378,-25\" stroke=\"transparent\"/>\n",
+       "<polygon fill=\"none\" points=\"378,-25 378,-46 421,-46 421,-25 378,-25\" stroke=\"#000000\"/>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"396\" y=\"-31.8\">6</text>\n",
+       "<polygon fill=\"none\" points=\"421,-25 421,-46 458,-46 458,-25 421,-25\" stroke=\"#000000\"/>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"436\" y=\"-31.8\">0</text>\n",
+       "<polygon fill=\"none\" points=\"458,-25 458,-46 478,-46 478,-25 458,-25\" stroke=\"#000000\"/>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"464.5\" y=\"-31.8\">0</text>\n",
+       "<polygon fill=\"none\" points=\"137,-4 137,-25 198,-25 198,-4 137,-4\" stroke=\"#000000\"/>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"159.5\" y=\"-10.8\">src</text>\n",
+       "<polygon fill=\"#ffff00\" points=\"198,-4 198,-25 241,-25 241,-4 198,-4\" stroke=\"transparent\"/>\n",
+       "<polygon fill=\"none\" points=\"198,-4 198,-25 241,-25 241,-4 198,-4\" stroke=\"#000000\"/>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"216\" y=\"-10.8\">0</text>\n",
+       "<polygon fill=\"#ffff00\" points=\"241,-4 241,-25 288,-25 288,-4 241,-4\" stroke=\"transparent\"/>\n",
+       "<polygon fill=\"none\" points=\"241,-4 241,-25 288,-25 288,-4 241,-4\" stroke=\"#000000\"/>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"261\" y=\"-10.8\">0</text>\n",
+       "<polygon fill=\"#ffff00\" points=\"288,-4 288,-25 331,-25 331,-4 288,-4\" stroke=\"transparent\"/>\n",
+       "<polygon fill=\"none\" points=\"288,-4 288,-25 331,-25 331,-4 288,-4\" stroke=\"#000000\"/>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"306\" y=\"-10.8\">1</text>\n",
+       "<polygon fill=\"#ffff00\" points=\"331,-4 331,-25 378,-25 378,-4 331,-4\" stroke=\"transparent\"/>\n",
+       "<polygon fill=\"none\" points=\"331,-4 331,-25 378,-25 378,-4 331,-4\" stroke=\"#000000\"/>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"351\" y=\"-10.8\">1</text>\n",
+       "<polygon fill=\"#ffff00\" points=\"378,-4 378,-25 421,-25 421,-4 378,-4\" stroke=\"transparent\"/>\n",
+       "<polygon fill=\"none\" points=\"378,-4 378,-25 421,-25 421,-4 378,-4\" stroke=\"#000000\"/>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"396\" y=\"-10.8\">1</text>\n",
+       "<polygon fill=\"#ffff00\" points=\"421,-4 421,-25 458,-25 458,-4 421,-4\" stroke=\"transparent\"/>\n",
+       "<polygon fill=\"none\" points=\"421,-4 421,-25 458,-25 458,-4 421,-4\" stroke=\"#000000\"/>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"436\" y=\"-10.8\">1</text>\n",
+       "<polygon fill=\"#ffff00\" points=\"458,-4 458,-25 478,-25 478,-4 458,-4\" stroke=\"transparent\"/>\n",
+       "<polygon fill=\"none\" points=\"458,-4 458,-25 478,-25 478,-4 458,-4\" stroke=\"#000000\"/>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"464.5\" y=\"-10.8\">2</text>\n",
        "</g>\n",
        "</g>\n",
        "</svg>"
@@ -2934,16 +3023,16 @@
        "<!-- Generated by graphviz version 2.40.1 (20161225.0304)\n",
        " -->\n",
        "<!-- Pages: 1 -->\n",
-       "<svg width=\"426pt\" height=\"274pt\"\n",
-       " viewBox=\"0.00 0.00 425.70 273.58\" xmlns=\"http://www.w3.org/2000/svg\" xmlns:xlink=\"http://www.w3.org/1999/xlink\">\n",
-       "<g id=\"graph0\" class=\"graph\" transform=\"scale(1 1) rotate(0) translate(4 269.5843)\">\n",
-       "<polygon fill=\"#ffffff\" stroke=\"transparent\" points=\"-4,4 -4,-269.5843 421.7,-269.5843 421.7,4 -4,4\"/>\n",
-       "<text text-anchor=\"start\" x=\"156.85\" y=\"-251.3843\" font-family=\"Lato\" font-size=\"14.00\" fill=\"#000000\">Fin(</text>\n",
-       "<text text-anchor=\"start\" x=\"181.85\" y=\"-251.3843\" font-family=\"Lato\" font-size=\"14.00\" fill=\"#1f78b4\">⓿</text>\n",
-       "<text text-anchor=\"start\" x=\"197.85\" y=\"-251.3843\" font-family=\"Lato\" font-size=\"14.00\" fill=\"#000000\">) &amp; Inf(</text>\n",
-       "<text text-anchor=\"start\" x=\"240.85\" y=\"-251.3843\" font-family=\"Lato\" font-size=\"14.00\" fill=\"#ff4da0\">❶</text>\n",
-       "<text text-anchor=\"start\" x=\"256.85\" y=\"-251.3843\" font-family=\"Lato\" font-size=\"14.00\" fill=\"#000000\">)</text>\n",
-       "<text text-anchor=\"start\" x=\"179.85\" y=\"-237.3843\" font-family=\"Lato\" font-size=\"14.00\" fill=\"#000000\">[Rabin 1]</text>\n",
+       "<svg width=\"428pt\" height=\"322pt\"\n",
+       " viewBox=\"0.00 0.00 427.70 321.58\" xmlns=\"http://www.w3.org/2000/svg\" xmlns:xlink=\"http://www.w3.org/1999/xlink\">\n",
+       "<g id=\"graph0\" class=\"graph\" transform=\"scale(1 1) rotate(0) translate(4 317.5843)\">\n",
+       "<polygon fill=\"#ffffff\" stroke=\"transparent\" points=\"-4,4 -4,-317.5843 423.7,-317.5843 423.7,4 -4,4\"/>\n",
+       "<text text-anchor=\"start\" x=\"157.85\" y=\"-299.3843\" font-family=\"Lato\" font-size=\"14.00\" fill=\"#000000\">Fin(</text>\n",
+       "<text text-anchor=\"start\" x=\"182.85\" y=\"-299.3843\" font-family=\"Lato\" font-size=\"14.00\" fill=\"#1f78b4\">⓿</text>\n",
+       "<text text-anchor=\"start\" x=\"198.85\" y=\"-299.3843\" font-family=\"Lato\" font-size=\"14.00\" fill=\"#000000\">) &amp; Inf(</text>\n",
+       "<text text-anchor=\"start\" x=\"241.85\" y=\"-299.3843\" font-family=\"Lato\" font-size=\"14.00\" fill=\"#ff4da0\">❶</text>\n",
+       "<text text-anchor=\"start\" x=\"257.85\" y=\"-299.3843\" font-family=\"Lato\" font-size=\"14.00\" fill=\"#000000\">)</text>\n",
+       "<text text-anchor=\"start\" x=\"180.85\" y=\"-285.3843\" font-family=\"Lato\" font-size=\"14.00\" fill=\"#000000\">[Rabin 1]</text>\n",
        "<!-- I -->\n",
        "<!-- 2 -->\n",
        "<g id=\"node2\" class=\"node\">\n",
@@ -2964,12 +3053,20 @@
        "<text text-anchor=\"middle\" x=\"137\" y=\"-67.8843\" font-family=\"Lato\" font-size=\"14.00\" fill=\"#000000\">0</text>\n",
        "</g>\n",
        "<!-- 2&#45;&gt;0 -->\n",
-       "<g id=\"edge9\" class=\"edge\">\n",
+       "<g id=\"edge11\" class=\"edge\">\n",
        "<title>2&#45;&gt;0</title>\n",
        "<path fill=\"none\" stroke=\"#000000\" d=\"M74.3802,-71.5843C85.4352,-71.5843 99.6622,-71.5843 111.7609,-71.5843\"/>\n",
        "<polygon fill=\"#000000\" stroke=\"#000000\" points=\"118.9716,-71.5843 111.9716,-74.7343 115.4716,-71.5843 111.9716,-71.5843 111.9716,-71.5843 111.9716,-71.5843 115.4716,-71.5843 111.9716,-68.4343 118.9716,-71.5843 118.9716,-71.5843\"/>\n",
        "<text text-anchor=\"middle\" x=\"96.5\" y=\"-75.3843\" font-family=\"Lato\" font-size=\"14.00\" fill=\"#000000\">1</text>\n",
        "</g>\n",
+       "<!-- 0&#45;&gt;0 -->\n",
+       "<g id=\"edge2\" class=\"edge\">\n",
+       "<title>0&#45;&gt;0</title>\n",
+       "<path fill=\"none\" stroke=\"#000000\" d=\"M129.9688,-88.2483C128.4063,-98.2093 130.75,-107.5843 137,-107.5843 141.6875,-107.5843 144.1777,-102.3108 144.4707,-95.4718\"/>\n",
+       "<polygon fill=\"#000000\" stroke=\"#000000\" points=\"144.0313,-88.2483 147.6006,-95.0441 144.2438,-91.7419 144.4564,-95.2354 144.4564,-95.2354 144.4564,-95.2354 144.2438,-91.7419 141.3122,-95.4267 144.0313,-88.2483 144.0313,-88.2483\"/>\n",
+       "<text text-anchor=\"start\" x=\"118.5\" y=\"-126.3843\" font-family=\"Lato\" font-size=\"14.00\" fill=\"#000000\">a &amp; !b</text>\n",
+       "<text text-anchor=\"start\" x=\"129\" y=\"-111.3843\" font-family=\"Lato\" font-size=\"14.00\" fill=\"#1f78b4\">⓿</text>\n",
+       "</g>\n",
        "<!-- 1 -->\n",
        "<g id=\"node4\" class=\"node\">\n",
        "<title>1</title>\n",
@@ -2977,12 +3074,12 @@
        "<text text-anchor=\"middle\" x=\"399.2\" y=\"-113.8843\" font-family=\"Lato\" font-size=\"14.00\" fill=\"#000000\">1</text>\n",
        "</g>\n",
        "<!-- 0&#45;&gt;1 -->\n",
-       "<g id=\"edge2\" class=\"edge\">\n",
+       "<g id=\"edge3\" class=\"edge\">\n",
        "<title>0&#45;&gt;1</title>\n",
-       "<path fill=\"none\" stroke=\"#000000\" d=\"M141.428,-89.3755C149.5854,-117.3786 169.8296,-168.5843 208.8,-168.5843 208.8,-168.5843 208.8,-168.5843 342.4,-168.5843 361.0699,-168.5843 376.3923,-153.1403 386.3977,-139.2498\"/>\n",
-       "<polygon fill=\"#000000\" stroke=\"#000000\" points=\"390.3545,-133.4414 389.0168,-141.0001 388.384,-136.334 386.4135,-139.2266 386.4135,-139.2266 386.4135,-139.2266 388.384,-136.334 383.8101,-137.4532 390.3545,-133.4414 390.3545,-133.4414\"/>\n",
-       "<text text-anchor=\"start\" x=\"247.6\" y=\"-187.3843\" font-family=\"Lato\" font-size=\"14.00\" fill=\"#000000\">!a &amp; !b</text>\n",
-       "<text text-anchor=\"start\" x=\"260.1\" y=\"-172.3843\" font-family=\"Lato\" font-size=\"14.00\" fill=\"#1f78b4\">⓿</text>\n",
+       "<path fill=\"none\" stroke=\"#000000\" d=\"M140.0038,-89.579C146.4299,-121.2388 164.6848,-183.5843 208.8,-183.5843 208.8,-183.5843 208.8,-183.5843 342.4,-183.5843 365.4233,-183.5843 381.1555,-160.2257 390.1234,-141.301\"/>\n",
+       "<polygon fill=\"#000000\" stroke=\"#000000\" points=\"393.1223,-134.5809 393.1462,-142.257 391.696,-137.7771 390.2696,-140.9733 390.2696,-140.9733 390.2696,-140.9733 391.696,-137.7771 387.3931,-139.6896 393.1223,-134.5809 393.1223,-134.5809\"/>\n",
+       "<text text-anchor=\"start\" x=\"247.6\" y=\"-202.3843\" font-family=\"Lato\" font-size=\"14.00\" fill=\"#000000\">!a &amp; !b</text>\n",
+       "<text text-anchor=\"start\" x=\"260.1\" y=\"-187.3843\" font-family=\"Lato\" font-size=\"14.00\" fill=\"#1f78b4\">⓿</text>\n",
        "</g>\n",
        "<!-- &#45;1 -->\n",
        "<g id=\"node5\" class=\"node\">\n",
@@ -2990,7 +3087,7 @@
        "<ellipse fill=\"#ffffaa\" stroke=\"#000000\" cx=\"208.8\" cy=\"-25.5843\" rx=\"1.8\" ry=\"1.8\"/>\n",
        "</g>\n",
        "<!-- 0&#45;&gt;&#45;1 -->\n",
-       "<g id=\"edge3\" class=\"edge\">\n",
+       "<g id=\"edge4\" class=\"edge\">\n",
        "<title>0&#45;&gt;&#45;1</title>\n",
        "<path fill=\"none\" stroke=\"#000000\" d=\"M140.7617,-53.8563C145.3096,-37.3406 154.744,-13.6508 173,-2.5843 179.0811,1.102 182.5363,.3802 189,-2.5843 195.6929,-5.6539 200.979,-12.2262 204.3997,-17.5622\"/>\n",
        "<polygon fill=\"none\" stroke=\"#000000\" points=\"202.4363,-19.0663 208.0234,-23.9435 206.6973,-16.6467 202.4363,-19.0663\"/>\n",
@@ -2998,31 +3095,40 @@
        "<text text-anchor=\"start\" x=\"173\" y=\"-6.3843\" font-family=\"Lato\" font-size=\"14.00\" fill=\"#ff4da0\">❶</text>\n",
        "</g>\n",
        "<!-- 1&#45;&gt;0 -->\n",
-       "<g id=\"edge6\" class=\"edge\">\n",
+       "<g id=\"edge7\" class=\"edge\">\n",
        "<title>1&#45;&gt;0</title>\n",
        "<path fill=\"none\" stroke=\"#000000\" d=\"M381.038,-117.5843C369.8887,-117.5843 355.3181,-117.5843 342.4,-117.5843 208.8,-117.5843 208.8,-117.5843 208.8,-117.5843 187.6278,-117.5843 167.7031,-103.2279 154.2398,-90.5556\"/>\n",
        "<polygon fill=\"#000000\" stroke=\"#000000\" points=\"149.232,-85.6357 156.433,-88.2945 151.7287,-88.0886 154.2254,-90.5415 154.2254,-90.5415 154.2254,-90.5415 151.7287,-88.0886 152.0178,-92.7885 149.232,-85.6357 149.232,-85.6357\"/>\n",
-       "<text text-anchor=\"start\" x=\"251.1\" y=\"-121.3843\" font-family=\"Lato\" font-size=\"14.00\" fill=\"#000000\">a &amp; b</text>\n",
-       "</g>\n",
-       "<!-- 1&#45;&gt;1 -->\n",
-       "<g id=\"edge7\" class=\"edge\">\n",
-       "<title>1&#45;&gt;1</title>\n",
-       "<path fill=\"none\" stroke=\"#000000\" d=\"M395.9643,-135.366C395.4144,-144.8992 396.493,-153.5843 399.2,-153.5843 401.188,-153.5843 402.2977,-148.9003 402.5292,-142.6364\"/>\n",
-       "<polygon fill=\"#000000\" stroke=\"#000000\" points=\"402.4357,-135.366 405.6756,-142.3249 402.4808,-138.8657 402.5258,-142.3654 402.5258,-142.3654 402.5258,-142.3654 402.4808,-138.8657 399.3761,-142.4059 402.4357,-135.366 402.4357,-135.366\"/>\n",
-       "<text text-anchor=\"start\" x=\"380.7\" y=\"-172.3843\" font-family=\"Lato\" font-size=\"14.00\" fill=\"#000000\">!a &amp; b</text>\n",
-       "<text text-anchor=\"start\" x=\"391.2\" y=\"-157.3843\" font-family=\"Lato\" font-size=\"14.00\" fill=\"#ff4da0\">❶</text>\n",
+       "<text text-anchor=\"start\" x=\"249.6\" y=\"-136.3843\" font-family=\"Lato\" font-size=\"14.00\" fill=\"#000000\">a &amp; !b</text>\n",
+       "<text text-anchor=\"start\" x=\"260.1\" y=\"-121.3843\" font-family=\"Lato\" font-size=\"14.00\" fill=\"#1f78b4\">⓿</text>\n",
        "</g>\n",
        "<!-- 1&#45;&gt;1 -->\n",
        "<g id=\"edge8\" class=\"edge\">\n",
        "<title>1&#45;&gt;1</title>\n",
-       "<path fill=\"none\" stroke=\"#000000\" d=\"M394.1906,-135.1614C390.7451,-156.3023 392.4148,-183.5843 399.2,-183.5843 405.243,-183.5843 407.2285,-161.9438 405.1564,-142.2749\"/>\n",
-       "<polygon fill=\"#000000\" stroke=\"#000000\" points=\"404.2094,-135.1614 408.2556,-141.6845 404.6713,-138.6308 405.1332,-142.1002 405.1332,-142.1002 405.1332,-142.1002 404.6713,-138.6308 402.0107,-142.5159 404.2094,-135.1614 404.2094,-135.1614\"/>\n",
-       "<text text-anchor=\"start\" x=\"394.7\" y=\"-201.3843\" font-family=\"Lato\" font-size=\"14.00\" fill=\"#000000\">1</text>\n",
-       "<text text-anchor=\"start\" x=\"383.2\" y=\"-187.3843\" font-family=\"Lato\" font-size=\"14.00\" fill=\"#1f78b4\">⓿</text>\n",
-       "<text text-anchor=\"start\" x=\"399.2\" y=\"-187.3843\" font-family=\"Lato\" font-size=\"14.00\" fill=\"#ff4da0\">❶</text>\n",
+       "<path fill=\"none\" stroke=\"#000000\" d=\"M397.0291,-135.737C396.6951,-145.1233 397.4188,-153.5843 399.2,-153.5843 400.5081,-153.5843 401.2458,-149.0212 401.4132,-142.8796\"/>\n",
+       "<polygon fill=\"#000000\" stroke=\"#000000\" points=\"401.3709,-135.737 404.5624,-142.7181 401.3917,-139.2369 401.4124,-142.7368 401.4124,-142.7368 401.4124,-142.7368 401.3917,-139.2369 398.2625,-142.7555 401.3709,-135.737 401.3709,-135.737\"/>\n",
+       "<text text-anchor=\"start\" x=\"378.7\" y=\"-172.3843\" font-family=\"Lato\" font-size=\"14.00\" fill=\"#000000\">!a &amp; !b</text>\n",
+       "<text text-anchor=\"start\" x=\"391.2\" y=\"-157.3843\" font-family=\"Lato\" font-size=\"14.00\" fill=\"#1f78b4\">⓿</text>\n",
+       "</g>\n",
+       "<!-- 1&#45;&gt;1 -->\n",
+       "<g id=\"edge9\" class=\"edge\">\n",
+       "<title>1&#45;&gt;1</title>\n",
+       "<path fill=\"none\" stroke=\"#000000\" d=\"M395.825,-135.4905C393.575,-156.5843 394.7,-183.5843 399.2,-183.5843 403.2078,-183.5843 404.5385,-162.1675 403.1922,-142.5808\"/>\n",
+       "<polygon fill=\"#000000\" stroke=\"#000000\" points=\"402.575,-135.4905 406.3202,-142.1909 402.8785,-138.9773 403.1821,-142.4641 403.1821,-142.4641 403.1821,-142.4641 402.8785,-138.9773 400.044,-142.7373 402.575,-135.4905 402.575,-135.4905\"/>\n",
+       "<text text-anchor=\"start\" x=\"380.7\" y=\"-202.3843\" font-family=\"Lato\" font-size=\"14.00\" fill=\"#000000\">!a &amp; b</text>\n",
+       "<text text-anchor=\"start\" x=\"391.2\" y=\"-187.3843\" font-family=\"Lato\" font-size=\"14.00\" fill=\"#ff4da0\">❶</text>\n",
+       "</g>\n",
+       "<!-- 1&#45;&gt;1 -->\n",
+       "<g id=\"edge10\" class=\"edge\">\n",
+       "<title>1&#45;&gt;1</title>\n",
+       "<path fill=\"none\" stroke=\"#000000\" d=\"M395.0867,-135.3557C390.5164,-166.053 391.8875,-213.5843 399.2,-213.5843 405.9698,-213.5843 407.6473,-172.8466 404.2327,-142.4425\"/>\n",
+       "<polygon fill=\"#000000\" stroke=\"#000000\" points=\"403.3133,-135.3557 407.3378,-141.8922 403.7636,-138.8266 404.214,-142.2976 404.214,-142.2976 404.214,-142.2976 403.7636,-138.8266 401.0902,-142.7029 403.3133,-135.3557 403.3133,-135.3557\"/>\n",
+       "<text text-anchor=\"start\" x=\"394.7\" y=\"-231.3843\" font-family=\"Lato\" font-size=\"14.00\" fill=\"#000000\">1</text>\n",
+       "<text text-anchor=\"start\" x=\"383.2\" y=\"-217.3843\" font-family=\"Lato\" font-size=\"14.00\" fill=\"#1f78b4\">⓿</text>\n",
+       "<text text-anchor=\"start\" x=\"399.2\" y=\"-217.3843\" font-family=\"Lato\" font-size=\"14.00\" fill=\"#ff4da0\">❶</text>\n",
        "</g>\n",
        "<!-- &#45;1&#45;&gt;0 -->\n",
-       "<g id=\"edge4\" class=\"edge\">\n",
+       "<g id=\"edge5\" class=\"edge\">\n",
        "<title>&#45;1&#45;&gt;0</title>\n",
        "<path fill=\"none\" stroke=\"#000000\" d=\"M207.2336,-26.5878C200.8704,-30.6645 176.4262,-46.3251 158.1525,-58.0325\"/>\n",
        "<polygon fill=\"#000000\" stroke=\"#000000\" points=\"152.2269,-61.8288 156.4218,-55.4003 155.174,-59.9407 158.1211,-58.0526 158.1211,-58.0526 158.1211,-58.0526 155.174,-59.9407 159.8204,-60.705 152.2269,-61.8288 152.2269,-61.8288\"/>\n",
@@ -3034,7 +3140,7 @@
        "<text text-anchor=\"middle\" x=\"268.1\" y=\"-21.8843\" font-family=\"Lato\" font-size=\"14.00\" fill=\"#000000\">3</text>\n",
        "</g>\n",
        "<!-- &#45;1&#45;&gt;3 -->\n",
-       "<g id=\"edge5\" class=\"edge\">\n",
+       "<g id=\"edge6\" class=\"edge\">\n",
        "<title>&#45;1&#45;&gt;3</title>\n",
        "<path fill=\"none\" stroke=\"#000000\" d=\"M210.773,-25.5843C215.8129,-25.5843 229.669,-25.5843 242.4957,-25.5843\"/>\n",
        "<polygon fill=\"#000000\" stroke=\"#000000\" points=\"249.8545,-25.5843 242.8546,-28.7343 246.3545,-25.5843 242.8545,-25.5843 242.8545,-25.5843 242.8545,-25.5843 246.3545,-25.5843 242.8545,-22.4343 249.8545,-25.5843 249.8545,-25.5843\"/>\n",
@@ -3045,7 +3151,7 @@
        "<ellipse fill=\"#ffffaa\" stroke=\"#000000\" cx=\"342.4\" cy=\"-71.5843\" rx=\"1.8\" ry=\"1.8\"/>\n",
        "</g>\n",
        "<!-- 3&#45;&gt;&#45;4 -->\n",
-       "<g id=\"edge10\" class=\"edge\">\n",
+       "<g id=\"edge12\" class=\"edge\">\n",
        "<title>3&#45;&gt;&#45;4</title>\n",
        "<path fill=\"none\" stroke=\"#000000\" d=\"M285.7565,-21.7519C297.2032,-20.2803 311.9168,-20.3954 322.6,-27.5843 334.3277,-35.4759 339.1975,-52.0823 341.1547,-62.4852\"/>\n",
        "<polygon fill=\"none\" stroke=\"#000000\" points=\"338.7364,-62.8794 342.2003,-69.4371 343.5819,-62.1506 338.7364,-62.8794\"/>\n",
@@ -3053,13 +3159,13 @@
        "<text text-anchor=\"start\" x=\"306.6\" y=\"-31.3843\" font-family=\"Lato\" font-size=\"14.00\" fill=\"#1f78b4\">⓿</text>\n",
        "</g>\n",
        "<!-- &#45;4&#45;&gt;0 -->\n",
-       "<g id=\"edge11\" class=\"edge\">\n",
+       "<g id=\"edge13\" class=\"edge\">\n",
        "<title>&#45;4&#45;&gt;0</title>\n",
        "<path fill=\"none\" stroke=\"#000000\" d=\"M340.4472,-71.5843C324.3671,-71.5843 213.1336,-71.5843 162.275,-71.5843\"/>\n",
        "<polygon fill=\"#000000\" stroke=\"#000000\" points=\"155.2279,-71.5843 162.2279,-68.4343 158.7279,-71.5843 162.2279,-71.5843 162.2279,-71.5843 162.2279,-71.5843 158.7279,-71.5843 162.2278,-74.7343 155.2279,-71.5843 155.2279,-71.5843\"/>\n",
        "</g>\n",
        "<!-- &#45;4&#45;&gt;1 -->\n",
-       "<g id=\"edge12\" class=\"edge\">\n",
+       "<g id=\"edge14\" class=\"edge\">\n",
        "<title>&#45;4&#45;&gt;1</title>\n",
        "<path fill=\"none\" stroke=\"#000000\" d=\"M343.8041,-72.7213C348.707,-76.692 365.5194,-90.3077 379.3491,-101.5078\"/>\n",
        "<polygon fill=\"#000000\" stroke=\"#000000\" points=\"385.05,-106.1248 377.6277,-104.1672 382.3301,-103.922 379.6102,-101.7193 379.6102,-101.7193 379.6102,-101.7193 382.3301,-103.922 381.5927,-99.2713 385.05,-106.1248 385.05,-106.1248\"/>\n",
@@ -3068,7 +3174,7 @@
        "</svg>\n"
       ],
       "text/plain": [
-       "<spot.twa_graph; proxy of <Swig Object of type 'std::shared_ptr< spot::twa_graph > *' at 0x7f616c1788a0> >"
+       "<spot.twa_graph; proxy of <Swig Object of type 'std::shared_ptr< spot::twa_graph > *' at 0x7f2950267b40> >"
       ]
      },
      "execution_count": 22,
@@ -3092,10 +3198,10 @@
     {
      "data": {
       "image/svg+xml": [
-       "<svg height=\"376pt\" viewBox=\"0.00 0.00 666.00 376.00\" width=\"666pt\" xmlns=\"http://www.w3.org/2000/svg\" xmlns:xlink=\"http://www.w3.org/1999/xlink\">\n",
+       "<svg height=\"376pt\" viewBox=\"0.00 0.00 762.00 376.00\" width=\"762pt\" xmlns=\"http://www.w3.org/2000/svg\" xmlns:xlink=\"http://www.w3.org/1999/xlink\">\n",
        "<g class=\"graph\" id=\"graph0\" transform=\"scale(1 1) rotate(0) translate(4 372)\">\n",
        "<title>g</title>\n",
-       "<polygon fill=\"#ffffff\" points=\"-4,4 -4,-372 662,-372 662,4 -4,4\" stroke=\"transparent\"/>\n",
+       "<polygon fill=\"#ffffff\" points=\"-4,4 -4,-372 758,-372 758,4 -4,4\" stroke=\"transparent\"/>\n",
        "<!-- states -->\n",
        "<g class=\"node\" id=\"node1\">\n",
        "<title>states</title>\n",
@@ -3121,187 +3227,219 @@
        "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"91.5\" y=\"-296.8\">1</text>\n",
        "<polygon fill=\"#00ffff\" points=\"101.5,-290 101.5,-311 114.5,-311 114.5,-290 101.5,-290\" stroke=\"transparent\"/>\n",
        "<polygon fill=\"none\" points=\"101.5,-290 101.5,-311 114.5,-311 114.5,-290 101.5,-290\" stroke=\"#000000\"/>\n",
-       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"104.5\" y=\"-296.8\">2</text>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"104.5\" y=\"-296.8\">3</text>\n",
        "<polygon fill=\"#00ffff\" points=\"114.5,-290 114.5,-311 127.5,-311 127.5,-290 114.5,-290\" stroke=\"transparent\"/>\n",
        "<polygon fill=\"none\" points=\"114.5,-290 114.5,-311 127.5,-311 127.5,-290 114.5,-290\" stroke=\"#000000\"/>\n",
-       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"117.5\" y=\"-296.8\">5</text>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"117.5\" y=\"-296.8\">7</text>\n",
        "<polygon fill=\"#00ffff\" points=\"127.5,-290 127.5,-311 140.5,-311 140.5,-290 127.5,-290\" stroke=\"transparent\"/>\n",
        "<polygon fill=\"none\" points=\"127.5,-290 127.5,-311 140.5,-311 140.5,-290 127.5,-290\" stroke=\"#000000\"/>\n",
-       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"130.5\" y=\"-296.8\">7</text>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"130.5\" y=\"-296.8\">9</text>\n",
        "<polygon fill=\"none\" points=\"33.5,-269 33.5,-290 88.5,-290 88.5,-269 33.5,-269\" stroke=\"#000000\"/>\n",
        "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"36.5\" y=\"-275.8\">succ_tail</text>\n",
        "<polygon fill=\"#00ffff\" points=\"88.5,-269 88.5,-290 101.5,-290 101.5,-269 88.5,-269\" stroke=\"transparent\"/>\n",
        "<polygon fill=\"none\" points=\"88.5,-269 88.5,-290 101.5,-290 101.5,-269 88.5,-269\" stroke=\"#000000\"/>\n",
-       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"91.5\" y=\"-275.8\">6</text>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"91.5\" y=\"-275.8\">8</text>\n",
        "<polygon fill=\"#00ffff\" points=\"101.5,-269 101.5,-290 114.5,-290 114.5,-269 101.5,-269\" stroke=\"transparent\"/>\n",
        "<polygon fill=\"none\" points=\"101.5,-269 101.5,-290 114.5,-290 114.5,-269 101.5,-269\" stroke=\"#000000\"/>\n",
-       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"104.5\" y=\"-275.8\">4</text>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"104.5\" y=\"-275.8\">6</text>\n",
        "<polygon fill=\"#00ffff\" points=\"114.5,-269 114.5,-290 127.5,-290 127.5,-269 114.5,-269\" stroke=\"transparent\"/>\n",
        "<polygon fill=\"none\" points=\"114.5,-269 114.5,-290 127.5,-290 127.5,-269 114.5,-269\" stroke=\"#000000\"/>\n",
-       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"117.5\" y=\"-275.8\">5</text>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"117.5\" y=\"-275.8\">7</text>\n",
        "<polygon fill=\"#00ffff\" points=\"127.5,-269 127.5,-290 140.5,-290 140.5,-269 127.5,-269\" stroke=\"transparent\"/>\n",
        "<polygon fill=\"none\" points=\"127.5,-269 127.5,-290 140.5,-290 140.5,-269 127.5,-269\" stroke=\"#000000\"/>\n",
-       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"130.5\" y=\"-275.8\">7</text>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"130.5\" y=\"-275.8\">9</text>\n",
        "</g>\n",
        "<!-- edges -->\n",
        "<g class=\"node\" id=\"node2\">\n",
        "<title>edges</title>\n",
-       "<polygon fill=\"#00ffff\" points=\"173.5,-343 173.5,-364 234.5,-364 234.5,-343 173.5,-343\" stroke=\"transparent\"/>\n",
-       "<polyline fill=\"none\" points=\"173.5,-343 234.5,-343 \" stroke=\"#000000\"/>\n",
-       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"188.5\" y=\"-349.8\">edges</text>\n",
-       "<polygon fill=\"#00ffff\" points=\"234.5,-343 234.5,-364 281.5,-364 281.5,-343 234.5,-343\" stroke=\"transparent\"/>\n",
-       "<polyline fill=\"none\" points=\"234.5,-343 281.5,-343 \" stroke=\"#000000\"/>\n",
-       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"254.5\" y=\"-349.8\">1</text>\n",
-       "<polygon fill=\"#00ffff\" points=\"281.5,-343 281.5,-364 319.5,-364 319.5,-343 281.5,-343\" stroke=\"transparent\"/>\n",
-       "<polyline fill=\"none\" points=\"281.5,-343 319.5,-343 \" stroke=\"#000000\"/>\n",
-       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"297\" y=\"-349.8\">2</text>\n",
-       "<polygon fill=\"#00ffff\" points=\"319.5,-343 319.5,-364 362.5,-364 362.5,-343 319.5,-343\" stroke=\"transparent\"/>\n",
-       "<polyline fill=\"none\" points=\"319.5,-343 362.5,-343 \" stroke=\"#000000\"/>\n",
-       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"337.5\" y=\"-349.8\">3</text>\n",
-       "<polygon fill=\"#00ffff\" points=\"362.5,-343 362.5,-364 399.5,-364 399.5,-343 362.5,-343\" stroke=\"transparent\"/>\n",
-       "<polyline fill=\"none\" points=\"362.5,-343 399.5,-343 \" stroke=\"#000000\"/>\n",
-       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"377.5\" y=\"-349.8\">4</text>\n",
-       "<polygon fill=\"#00ffff\" points=\"399.5,-343 399.5,-364 419.5,-364 419.5,-343 399.5,-343\" stroke=\"transparent\"/>\n",
-       "<polyline fill=\"none\" points=\"399.5,-343 419.5,-343 \" stroke=\"#000000\"/>\n",
-       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"406\" y=\"-349.8\">5</text>\n",
-       "<polygon fill=\"#00ffff\" points=\"419.5,-343 419.5,-364 446.5,-364 446.5,-343 419.5,-343\" stroke=\"transparent\"/>\n",
-       "<polyline fill=\"none\" points=\"419.5,-343 446.5,-343 \" stroke=\"#000000\"/>\n",
-       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"429.5\" y=\"-349.8\">6</text>\n",
-       "<polygon fill=\"#00ffff\" points=\"446.5,-343 446.5,-364 473.5,-364 473.5,-343 446.5,-343\" stroke=\"transparent\"/>\n",
-       "<polyline fill=\"none\" points=\"446.5,-343 473.5,-343 \" stroke=\"#000000\"/>\n",
-       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"456.5\" y=\"-349.8\">7</text>\n",
-       "<polygon fill=\"none\" points=\"173.5,-322 173.5,-343 234.5,-343 234.5,-322 173.5,-322\" stroke=\"#000000\"/>\n",
-       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"190.5\" y=\"-328.8\">cond</text>\n",
-       "<polygon fill=\"none\" points=\"234.5,-322 234.5,-343 281.5,-343 281.5,-322 234.5,-322\" stroke=\"#000000\"/>\n",
-       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"237.5\" y=\"-328.8\">!a &amp; !b</text>\n",
-       "<polygon fill=\"none\" points=\"281.5,-322 281.5,-343 319.5,-343 319.5,-322 281.5,-322\" stroke=\"#000000\"/>\n",
-       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"284.5\" y=\"-328.8\">a &amp; b</text>\n",
-       "<polygon fill=\"none\" points=\"319.5,-322 319.5,-343 362.5,-343 362.5,-322 319.5,-322\" stroke=\"#000000\"/>\n",
-       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"322.5\" y=\"-328.8\">!a &amp; b</text>\n",
-       "<polygon fill=\"none\" points=\"362.5,-322 362.5,-343 399.5,-343 399.5,-322 362.5,-322\" stroke=\"#000000\"/>\n",
-       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"377.5\" y=\"-328.8\">1</text>\n",
-       "<polygon fill=\"none\" points=\"399.5,-322 399.5,-343 419.5,-343 419.5,-322 399.5,-322\" stroke=\"#000000\"/>\n",
-       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"406\" y=\"-328.8\">1</text>\n",
-       "<polygon fill=\"none\" points=\"419.5,-322 419.5,-343 446.5,-343 446.5,-322 419.5,-322\" stroke=\"#000000\"/>\n",
-       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"429.5\" y=\"-328.8\">a</text>\n",
-       "<polygon fill=\"none\" points=\"446.5,-322 446.5,-343 473.5,-343 473.5,-322 446.5,-322\" stroke=\"#000000\"/>\n",
-       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"454.5\" y=\"-328.8\">!a</text>\n",
-       "<polygon fill=\"none\" points=\"173.5,-301 173.5,-322 234.5,-322 234.5,-301 173.5,-301\" stroke=\"#000000\"/>\n",
-       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"194.5\" y=\"-307.8\">acc</text>\n",
-       "<polygon fill=\"none\" points=\"234.5,-301 234.5,-322 281.5,-322 281.5,-301 234.5,-301\" stroke=\"#000000\"/>\n",
-       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"247.5\" y=\"-307.8\">{0}</text>\n",
-       "<polygon fill=\"none\" points=\"281.5,-301 281.5,-322 319.5,-322 319.5,-301 281.5,-301\" stroke=\"#000000\"/>\n",
-       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"293.5\" y=\"-307.8\">{}</text>\n",
-       "<polygon fill=\"none\" points=\"319.5,-301 319.5,-322 362.5,-322 362.5,-301 319.5,-301\" stroke=\"#000000\"/>\n",
-       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"330.5\" y=\"-307.8\">{1}</text>\n",
-       "<polygon fill=\"none\" points=\"362.5,-301 362.5,-322 399.5,-322 399.5,-301 362.5,-301\" stroke=\"#000000\"/>\n",
-       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"365.5\" y=\"-307.8\">{0,1}</text>\n",
-       "<polygon fill=\"none\" points=\"399.5,-301 399.5,-322 419.5,-322 419.5,-301 399.5,-301\" stroke=\"#000000\"/>\n",
-       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"402.5\" y=\"-307.8\">{}</text>\n",
-       "<polygon fill=\"none\" points=\"419.5,-301 419.5,-322 446.5,-322 446.5,-301 419.5,-301\" stroke=\"#000000\"/>\n",
-       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"422.5\" y=\"-307.8\">{1}</text>\n",
-       "<polygon fill=\"none\" points=\"446.5,-301 446.5,-322 473.5,-322 473.5,-301 446.5,-301\" stroke=\"#000000\"/>\n",
-       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"449.5\" y=\"-307.8\">{0}</text>\n",
-       "<polygon fill=\"none\" points=\"173.5,-280 173.5,-301 234.5,-301 234.5,-280 173.5,-280\" stroke=\"#000000\"/>\n",
-       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"196\" y=\"-286.8\">dst</text>\n",
-       "<polygon fill=\"#ffff00\" points=\"234.5,-280 234.5,-301 281.5,-301 281.5,-280 234.5,-280\" stroke=\"transparent\"/>\n",
-       "<polygon fill=\"none\" points=\"234.5,-280 234.5,-301 281.5,-301 281.5,-280 234.5,-280\" stroke=\"#000000\"/>\n",
-       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"254.5\" y=\"-286.8\">1</text>\n",
-       "<polygon fill=\"#ffff00\" points=\"281.5,-280 281.5,-301 319.5,-301 319.5,-280 281.5,-280\" stroke=\"transparent\"/>\n",
-       "<polygon fill=\"none\" points=\"281.5,-280 281.5,-301 319.5,-301 319.5,-280 281.5,-280\" stroke=\"#000000\"/>\n",
-       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"297\" y=\"-286.8\">0</text>\n",
-       "<polygon fill=\"#ffff00\" points=\"319.5,-280 319.5,-301 362.5,-301 362.5,-280 319.5,-280\" stroke=\"transparent\"/>\n",
-       "<polygon fill=\"none\" points=\"319.5,-280 319.5,-301 362.5,-301 362.5,-280 319.5,-280\" stroke=\"#000000\"/>\n",
-       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"337.5\" y=\"-286.8\">1</text>\n",
-       "<polygon fill=\"#ffff00\" points=\"362.5,-280 362.5,-301 399.5,-301 399.5,-280 362.5,-280\" stroke=\"transparent\"/>\n",
-       "<polygon fill=\"none\" points=\"362.5,-280 362.5,-301 399.5,-301 399.5,-280 362.5,-280\" stroke=\"#000000\"/>\n",
-       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"377.5\" y=\"-286.8\">1</text>\n",
-       "<polygon fill=\"#ffff00\" points=\"399.5,-280 399.5,-301 419.5,-301 419.5,-280 399.5,-280\" stroke=\"transparent\"/>\n",
-       "<polygon fill=\"none\" points=\"399.5,-280 399.5,-301 419.5,-301 419.5,-280 399.5,-280\" stroke=\"#000000\"/>\n",
-       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"406\" y=\"-286.8\">0</text>\n",
-       "<polygon fill=\"#ffc0cb\" points=\"419.5,-280 419.5,-301 446.5,-301 446.5,-280 419.5,-280\" stroke=\"transparent\"/>\n",
-       "<polygon fill=\"none\" points=\"419.5,-280 419.5,-301 446.5,-301 446.5,-280 419.5,-280\" stroke=\"#000000\"/>\n",
-       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"425.5\" y=\"-286.8\">~0</text>\n",
-       "<polygon fill=\"#ffc0cb\" points=\"446.5,-280 446.5,-301 473.5,-301 473.5,-280 446.5,-280\" stroke=\"transparent\"/>\n",
-       "<polygon fill=\"none\" points=\"446.5,-280 446.5,-301 473.5,-301 473.5,-280 446.5,-280\" stroke=\"#000000\"/>\n",
-       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"452.5\" y=\"-286.8\">~3</text>\n",
-       "<polygon fill=\"none\" points=\"173.5,-259 173.5,-280 234.5,-280 234.5,-259 173.5,-259\" stroke=\"#000000\"/>\n",
-       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"176.5\" y=\"-265.8\">next_succ</text>\n",
-       "<polygon fill=\"#00ffff\" points=\"234.5,-259 234.5,-280 281.5,-280 281.5,-259 234.5,-259\" stroke=\"transparent\"/>\n",
-       "<polygon fill=\"none\" points=\"234.5,-259 234.5,-280 281.5,-280 281.5,-259 234.5,-259\" stroke=\"#000000\"/>\n",
-       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"254.5\" y=\"-265.8\">6</text>\n",
-       "<polygon fill=\"#00ffff\" points=\"281.5,-259 281.5,-280 319.5,-280 319.5,-259 281.5,-259\" stroke=\"transparent\"/>\n",
-       "<polygon fill=\"none\" points=\"281.5,-259 281.5,-280 319.5,-280 319.5,-259 281.5,-259\" stroke=\"#000000\"/>\n",
-       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"297\" y=\"-265.8\">3</text>\n",
-       "<polygon fill=\"#00ffff\" points=\"319.5,-259 319.5,-280 362.5,-280 362.5,-259 319.5,-259\" stroke=\"transparent\"/>\n",
-       "<polygon fill=\"none\" points=\"319.5,-259 319.5,-280 362.5,-280 362.5,-259 319.5,-259\" stroke=\"#000000\"/>\n",
-       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"337.5\" y=\"-265.8\">4</text>\n",
-       "<polygon fill=\"none\" points=\"362.5,-259 362.5,-280 399.5,-280 399.5,-259 362.5,-259\" stroke=\"#000000\"/>\n",
-       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"377.5\" y=\"-265.8\">0</text>\n",
-       "<polygon fill=\"none\" points=\"399.5,-259 399.5,-280 419.5,-280 419.5,-259 399.5,-259\" stroke=\"#000000\"/>\n",
-       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"406\" y=\"-265.8\">0</text>\n",
-       "<polygon fill=\"none\" points=\"419.5,-259 419.5,-280 446.5,-280 446.5,-259 419.5,-259\" stroke=\"#000000\"/>\n",
-       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"429.5\" y=\"-265.8\">0</text>\n",
-       "<polygon fill=\"none\" points=\"446.5,-259 446.5,-280 473.5,-280 473.5,-259 446.5,-259\" stroke=\"#000000\"/>\n",
-       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"456.5\" y=\"-265.8\">0</text>\n",
-       "<polygon fill=\"none\" points=\"173.5,-238 173.5,-259 234.5,-259 234.5,-238 173.5,-238\" stroke=\"#000000\"/>\n",
-       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"196\" y=\"-244.8\">src</text>\n",
-       "<polygon fill=\"#ffff00\" points=\"234.5,-238 234.5,-259 281.5,-259 281.5,-238 234.5,-238\" stroke=\"transparent\"/>\n",
-       "<polygon fill=\"none\" points=\"234.5,-238 234.5,-259 281.5,-259 281.5,-238 234.5,-238\" stroke=\"#000000\"/>\n",
-       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"254.5\" y=\"-244.8\">0</text>\n",
-       "<polygon fill=\"#ffff00\" points=\"281.5,-238 281.5,-259 319.5,-259 319.5,-238 281.5,-238\" stroke=\"transparent\"/>\n",
-       "<polygon fill=\"none\" points=\"281.5,-238 281.5,-259 319.5,-259 319.5,-238 281.5,-238\" stroke=\"#000000\"/>\n",
-       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"297\" y=\"-244.8\">1</text>\n",
-       "<polygon fill=\"#ffff00\" points=\"319.5,-238 319.5,-259 362.5,-259 362.5,-238 319.5,-238\" stroke=\"transparent\"/>\n",
-       "<polygon fill=\"none\" points=\"319.5,-238 319.5,-259 362.5,-259 362.5,-238 319.5,-238\" stroke=\"#000000\"/>\n",
-       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"337.5\" y=\"-244.8\">1</text>\n",
-       "<polygon fill=\"#ffff00\" points=\"362.5,-238 362.5,-259 399.5,-259 399.5,-238 362.5,-238\" stroke=\"transparent\"/>\n",
-       "<polygon fill=\"none\" points=\"362.5,-238 362.5,-259 399.5,-259 399.5,-238 362.5,-238\" stroke=\"#000000\"/>\n",
-       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"377.5\" y=\"-244.8\">1</text>\n",
-       "<polygon fill=\"#ffff00\" points=\"399.5,-238 399.5,-259 419.5,-259 419.5,-238 399.5,-238\" stroke=\"transparent\"/>\n",
-       "<polygon fill=\"none\" points=\"399.5,-238 399.5,-259 419.5,-259 419.5,-238 399.5,-238\" stroke=\"#000000\"/>\n",
-       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"406\" y=\"-244.8\">2</text>\n",
-       "<polygon fill=\"#ffff00\" points=\"419.5,-238 419.5,-259 446.5,-259 446.5,-238 419.5,-238\" stroke=\"transparent\"/>\n",
-       "<polygon fill=\"none\" points=\"419.5,-238 419.5,-259 446.5,-259 446.5,-238 419.5,-238\" stroke=\"#000000\"/>\n",
-       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"429.5\" y=\"-244.8\">0</text>\n",
-       "<polygon fill=\"#ffff00\" points=\"446.5,-238 446.5,-259 473.5,-259 473.5,-238 446.5,-238\" stroke=\"transparent\"/>\n",
-       "<polygon fill=\"none\" points=\"446.5,-238 446.5,-259 473.5,-259 473.5,-238 446.5,-238\" stroke=\"#000000\"/>\n",
-       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"456.5\" y=\"-244.8\">3</text>\n",
+       "<polygon fill=\"#00ffff\" points=\"174.5,-343 174.5,-364 235.5,-364 235.5,-343 174.5,-343\" stroke=\"transparent\"/>\n",
+       "<polyline fill=\"none\" points=\"174.5,-343 235.5,-343 \" stroke=\"#000000\"/>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"189.5\" y=\"-349.8\">edges</text>\n",
+       "<polygon fill=\"#00ffff\" points=\"235.5,-343 235.5,-364 278.5,-364 278.5,-343 235.5,-343\" stroke=\"transparent\"/>\n",
+       "<polyline fill=\"none\" points=\"235.5,-343 278.5,-343 \" stroke=\"#000000\"/>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"253.5\" y=\"-349.8\">1</text>\n",
+       "<polygon fill=\"#00ffff\" points=\"278.5,-343 278.5,-364 325.5,-364 325.5,-343 278.5,-343\" stroke=\"transparent\"/>\n",
+       "<polyline fill=\"none\" points=\"278.5,-343 325.5,-343 \" stroke=\"#000000\"/>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"298.5\" y=\"-349.8\">2</text>\n",
+       "<polygon fill=\"#00ffff\" points=\"325.5,-343 325.5,-364 368.5,-364 368.5,-343 325.5,-343\" stroke=\"transparent\"/>\n",
+       "<polyline fill=\"none\" points=\"325.5,-343 368.5,-343 \" stroke=\"#000000\"/>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"343.5\" y=\"-349.8\">3</text>\n",
+       "<polygon fill=\"#00ffff\" points=\"368.5,-343 368.5,-364 415.5,-364 415.5,-343 368.5,-343\" stroke=\"transparent\"/>\n",
+       "<polyline fill=\"none\" points=\"368.5,-343 415.5,-343 \" stroke=\"#000000\"/>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"388.5\" y=\"-349.8\">4</text>\n",
+       "<polygon fill=\"#00ffff\" points=\"415.5,-343 415.5,-364 458.5,-364 458.5,-343 415.5,-343\" stroke=\"transparent\"/>\n",
+       "<polyline fill=\"none\" points=\"415.5,-343 458.5,-343 \" stroke=\"#000000\"/>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"433.5\" y=\"-349.8\">5</text>\n",
+       "<polygon fill=\"#00ffff\" points=\"458.5,-343 458.5,-364 495.5,-364 495.5,-343 458.5,-343\" stroke=\"transparent\"/>\n",
+       "<polyline fill=\"none\" points=\"458.5,-343 495.5,-343 \" stroke=\"#000000\"/>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"473.5\" y=\"-349.8\">6</text>\n",
+       "<polygon fill=\"#00ffff\" points=\"495.5,-343 495.5,-364 515.5,-364 515.5,-343 495.5,-343\" stroke=\"transparent\"/>\n",
+       "<polyline fill=\"none\" points=\"495.5,-343 515.5,-343 \" stroke=\"#000000\"/>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"502\" y=\"-349.8\">7</text>\n",
+       "<polygon fill=\"#00ffff\" points=\"515.5,-343 515.5,-364 542.5,-364 542.5,-343 515.5,-343\" stroke=\"transparent\"/>\n",
+       "<polyline fill=\"none\" points=\"515.5,-343 542.5,-343 \" stroke=\"#000000\"/>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"525.5\" y=\"-349.8\">8</text>\n",
+       "<polygon fill=\"#00ffff\" points=\"542.5,-343 542.5,-364 569.5,-364 569.5,-343 542.5,-343\" stroke=\"transparent\"/>\n",
+       "<polyline fill=\"none\" points=\"542.5,-343 569.5,-343 \" stroke=\"#000000\"/>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"552.5\" y=\"-349.8\">9</text>\n",
+       "<polygon fill=\"none\" points=\"174.5,-322 174.5,-343 235.5,-343 235.5,-322 174.5,-322\" stroke=\"#000000\"/>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"191.5\" y=\"-328.8\">cond</text>\n",
+       "<polygon fill=\"none\" points=\"235.5,-322 235.5,-343 278.5,-343 278.5,-322 235.5,-322\" stroke=\"#000000\"/>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"238.5\" y=\"-328.8\">a &amp; !b</text>\n",
+       "<polygon fill=\"none\" points=\"278.5,-322 278.5,-343 325.5,-343 325.5,-322 278.5,-322\" stroke=\"#000000\"/>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"281.5\" y=\"-328.8\">!a &amp; !b</text>\n",
+       "<polygon fill=\"none\" points=\"325.5,-322 325.5,-343 368.5,-343 368.5,-322 325.5,-322\" stroke=\"#000000\"/>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"328.5\" y=\"-328.8\">a &amp; !b</text>\n",
+       "<polygon fill=\"none\" points=\"368.5,-322 368.5,-343 415.5,-343 415.5,-322 368.5,-322\" stroke=\"#000000\"/>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"371.5\" y=\"-328.8\">!a &amp; !b</text>\n",
+       "<polygon fill=\"none\" points=\"415.5,-322 415.5,-343 458.5,-343 458.5,-322 415.5,-322\" stroke=\"#000000\"/>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"418.5\" y=\"-328.8\">!a &amp; b</text>\n",
+       "<polygon fill=\"none\" points=\"458.5,-322 458.5,-343 495.5,-343 495.5,-322 458.5,-322\" stroke=\"#000000\"/>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"473.5\" y=\"-328.8\">1</text>\n",
+       "<polygon fill=\"none\" points=\"495.5,-322 495.5,-343 515.5,-343 515.5,-322 495.5,-322\" stroke=\"#000000\"/>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"502\" y=\"-328.8\">1</text>\n",
+       "<polygon fill=\"none\" points=\"515.5,-322 515.5,-343 542.5,-343 542.5,-322 515.5,-322\" stroke=\"#000000\"/>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"525.5\" y=\"-328.8\">a</text>\n",
+       "<polygon fill=\"none\" points=\"542.5,-322 542.5,-343 569.5,-343 569.5,-322 542.5,-322\" stroke=\"#000000\"/>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"550.5\" y=\"-328.8\">!a</text>\n",
+       "<polygon fill=\"none\" points=\"174.5,-301 174.5,-322 235.5,-322 235.5,-301 174.5,-301\" stroke=\"#000000\"/>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"195.5\" y=\"-307.8\">acc</text>\n",
+       "<polygon fill=\"none\" points=\"235.5,-301 235.5,-322 278.5,-322 278.5,-301 235.5,-301\" stroke=\"#000000\"/>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"246.5\" y=\"-307.8\">{0}</text>\n",
+       "<polygon fill=\"none\" points=\"278.5,-301 278.5,-322 325.5,-322 325.5,-301 278.5,-301\" stroke=\"#000000\"/>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"291.5\" y=\"-307.8\">{0}</text>\n",
+       "<polygon fill=\"none\" points=\"325.5,-301 325.5,-322 368.5,-322 368.5,-301 325.5,-301\" stroke=\"#000000\"/>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"336.5\" y=\"-307.8\">{0}</text>\n",
+       "<polygon fill=\"none\" points=\"368.5,-301 368.5,-322 415.5,-322 415.5,-301 368.5,-301\" stroke=\"#000000\"/>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"381.5\" y=\"-307.8\">{0}</text>\n",
+       "<polygon fill=\"none\" points=\"415.5,-301 415.5,-322 458.5,-322 458.5,-301 415.5,-301\" stroke=\"#000000\"/>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"426.5\" y=\"-307.8\">{1}</text>\n",
+       "<polygon fill=\"none\" points=\"458.5,-301 458.5,-322 495.5,-322 495.5,-301 458.5,-301\" stroke=\"#000000\"/>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"461.5\" y=\"-307.8\">{0,1}</text>\n",
+       "<polygon fill=\"none\" points=\"495.5,-301 495.5,-322 515.5,-322 515.5,-301 495.5,-301\" stroke=\"#000000\"/>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"498.5\" y=\"-307.8\">{}</text>\n",
+       "<polygon fill=\"none\" points=\"515.5,-301 515.5,-322 542.5,-322 542.5,-301 515.5,-301\" stroke=\"#000000\"/>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"518.5\" y=\"-307.8\">{1}</text>\n",
+       "<polygon fill=\"none\" points=\"542.5,-301 542.5,-322 569.5,-322 569.5,-301 542.5,-301\" stroke=\"#000000\"/>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"545.5\" y=\"-307.8\">{0}</text>\n",
+       "<polygon fill=\"none\" points=\"174.5,-280 174.5,-301 235.5,-301 235.5,-280 174.5,-280\" stroke=\"#000000\"/>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"197\" y=\"-286.8\">dst</text>\n",
+       "<polygon fill=\"#ffff00\" points=\"235.5,-280 235.5,-301 278.5,-301 278.5,-280 235.5,-280\" stroke=\"transparent\"/>\n",
+       "<polygon fill=\"none\" points=\"235.5,-280 235.5,-301 278.5,-301 278.5,-280 235.5,-280\" stroke=\"#000000\"/>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"253.5\" y=\"-286.8\">0</text>\n",
+       "<polygon fill=\"#ffff00\" points=\"278.5,-280 278.5,-301 325.5,-301 325.5,-280 278.5,-280\" stroke=\"transparent\"/>\n",
+       "<polygon fill=\"none\" points=\"278.5,-280 278.5,-301 325.5,-301 325.5,-280 278.5,-280\" stroke=\"#000000\"/>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"298.5\" y=\"-286.8\">1</text>\n",
+       "<polygon fill=\"#ffff00\" points=\"325.5,-280 325.5,-301 368.5,-301 368.5,-280 325.5,-280\" stroke=\"transparent\"/>\n",
+       "<polygon fill=\"none\" points=\"325.5,-280 325.5,-301 368.5,-301 368.5,-280 325.5,-280\" stroke=\"#000000\"/>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"343.5\" y=\"-286.8\">0</text>\n",
+       "<polygon fill=\"#ffff00\" points=\"368.5,-280 368.5,-301 415.5,-301 415.5,-280 368.5,-280\" stroke=\"transparent\"/>\n",
+       "<polygon fill=\"none\" points=\"368.5,-280 368.5,-301 415.5,-301 415.5,-280 368.5,-280\" stroke=\"#000000\"/>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"388.5\" y=\"-286.8\">1</text>\n",
+       "<polygon fill=\"#ffff00\" points=\"415.5,-280 415.5,-301 458.5,-301 458.5,-280 415.5,-280\" stroke=\"transparent\"/>\n",
+       "<polygon fill=\"none\" points=\"415.5,-280 415.5,-301 458.5,-301 458.5,-280 415.5,-280\" stroke=\"#000000\"/>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"433.5\" y=\"-286.8\">1</text>\n",
+       "<polygon fill=\"#ffff00\" points=\"458.5,-280 458.5,-301 495.5,-301 495.5,-280 458.5,-280\" stroke=\"transparent\"/>\n",
+       "<polygon fill=\"none\" points=\"458.5,-280 458.5,-301 495.5,-301 495.5,-280 458.5,-280\" stroke=\"#000000\"/>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"473.5\" y=\"-286.8\">1</text>\n",
+       "<polygon fill=\"#ffff00\" points=\"495.5,-280 495.5,-301 515.5,-301 515.5,-280 495.5,-280\" stroke=\"transparent\"/>\n",
+       "<polygon fill=\"none\" points=\"495.5,-280 495.5,-301 515.5,-301 515.5,-280 495.5,-280\" stroke=\"#000000\"/>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"502\" y=\"-286.8\">0</text>\n",
+       "<polygon fill=\"#ffc0cb\" points=\"515.5,-280 515.5,-301 542.5,-301 542.5,-280 515.5,-280\" stroke=\"transparent\"/>\n",
+       "<polygon fill=\"none\" points=\"515.5,-280 515.5,-301 542.5,-301 542.5,-280 515.5,-280\" stroke=\"#000000\"/>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"521.5\" y=\"-286.8\">~0</text>\n",
+       "<polygon fill=\"#ffc0cb\" points=\"542.5,-280 542.5,-301 569.5,-301 569.5,-280 542.5,-280\" stroke=\"transparent\"/>\n",
+       "<polygon fill=\"none\" points=\"542.5,-280 542.5,-301 569.5,-301 569.5,-280 542.5,-280\" stroke=\"#000000\"/>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"548.5\" y=\"-286.8\">~3</text>\n",
+       "<polygon fill=\"none\" points=\"174.5,-259 174.5,-280 235.5,-280 235.5,-259 174.5,-259\" stroke=\"#000000\"/>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"177.5\" y=\"-265.8\">next_succ</text>\n",
+       "<polygon fill=\"#00ffff\" points=\"235.5,-259 235.5,-280 278.5,-280 278.5,-259 235.5,-259\" stroke=\"transparent\"/>\n",
+       "<polygon fill=\"none\" points=\"235.5,-259 235.5,-280 278.5,-280 278.5,-259 235.5,-259\" stroke=\"#000000\"/>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"253.5\" y=\"-265.8\">2</text>\n",
+       "<polygon fill=\"#00ffff\" points=\"278.5,-259 278.5,-280 325.5,-280 325.5,-259 278.5,-259\" stroke=\"transparent\"/>\n",
+       "<polygon fill=\"none\" points=\"278.5,-259 278.5,-280 325.5,-280 325.5,-259 278.5,-259\" stroke=\"#000000\"/>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"298.5\" y=\"-265.8\">8</text>\n",
+       "<polygon fill=\"#00ffff\" points=\"325.5,-259 325.5,-280 368.5,-280 368.5,-259 325.5,-259\" stroke=\"transparent\"/>\n",
+       "<polygon fill=\"none\" points=\"325.5,-259 325.5,-280 368.5,-280 368.5,-259 325.5,-259\" stroke=\"#000000\"/>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"343.5\" y=\"-265.8\">4</text>\n",
+       "<polygon fill=\"#00ffff\" points=\"368.5,-259 368.5,-280 415.5,-280 415.5,-259 368.5,-259\" stroke=\"transparent\"/>\n",
+       "<polygon fill=\"none\" points=\"368.5,-259 368.5,-280 415.5,-280 415.5,-259 368.5,-259\" stroke=\"#000000\"/>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"388.5\" y=\"-265.8\">5</text>\n",
+       "<polygon fill=\"#00ffff\" points=\"415.5,-259 415.5,-280 458.5,-280 458.5,-259 415.5,-259\" stroke=\"transparent\"/>\n",
+       "<polygon fill=\"none\" points=\"415.5,-259 415.5,-280 458.5,-280 458.5,-259 415.5,-259\" stroke=\"#000000\"/>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"433.5\" y=\"-265.8\">6</text>\n",
+       "<polygon fill=\"none\" points=\"458.5,-259 458.5,-280 495.5,-280 495.5,-259 458.5,-259\" stroke=\"#000000\"/>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"473.5\" y=\"-265.8\">0</text>\n",
+       "<polygon fill=\"none\" points=\"495.5,-259 495.5,-280 515.5,-280 515.5,-259 495.5,-259\" stroke=\"#000000\"/>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"502\" y=\"-265.8\">0</text>\n",
+       "<polygon fill=\"none\" points=\"515.5,-259 515.5,-280 542.5,-280 542.5,-259 515.5,-259\" stroke=\"#000000\"/>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"525.5\" y=\"-265.8\">0</text>\n",
+       "<polygon fill=\"none\" points=\"542.5,-259 542.5,-280 569.5,-280 569.5,-259 542.5,-259\" stroke=\"#000000\"/>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"552.5\" y=\"-265.8\">0</text>\n",
+       "<polygon fill=\"none\" points=\"174.5,-238 174.5,-259 235.5,-259 235.5,-238 174.5,-238\" stroke=\"#000000\"/>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"197\" y=\"-244.8\">src</text>\n",
+       "<polygon fill=\"#ffff00\" points=\"235.5,-238 235.5,-259 278.5,-259 278.5,-238 235.5,-238\" stroke=\"transparent\"/>\n",
+       "<polygon fill=\"none\" points=\"235.5,-238 235.5,-259 278.5,-259 278.5,-238 235.5,-238\" stroke=\"#000000\"/>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"253.5\" y=\"-244.8\">0</text>\n",
+       "<polygon fill=\"#ffff00\" points=\"278.5,-238 278.5,-259 325.5,-259 325.5,-238 278.5,-238\" stroke=\"transparent\"/>\n",
+       "<polygon fill=\"none\" points=\"278.5,-238 278.5,-259 325.5,-259 325.5,-238 278.5,-238\" stroke=\"#000000\"/>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"298.5\" y=\"-244.8\">0</text>\n",
+       "<polygon fill=\"#ffff00\" points=\"325.5,-238 325.5,-259 368.5,-259 368.5,-238 325.5,-238\" stroke=\"transparent\"/>\n",
+       "<polygon fill=\"none\" points=\"325.5,-238 325.5,-259 368.5,-259 368.5,-238 325.5,-238\" stroke=\"#000000\"/>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"343.5\" y=\"-244.8\">1</text>\n",
+       "<polygon fill=\"#ffff00\" points=\"368.5,-238 368.5,-259 415.5,-259 415.5,-238 368.5,-238\" stroke=\"transparent\"/>\n",
+       "<polygon fill=\"none\" points=\"368.5,-238 368.5,-259 415.5,-259 415.5,-238 368.5,-238\" stroke=\"#000000\"/>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"388.5\" y=\"-244.8\">1</text>\n",
+       "<polygon fill=\"#ffff00\" points=\"415.5,-238 415.5,-259 458.5,-259 458.5,-238 415.5,-238\" stroke=\"transparent\"/>\n",
+       "<polygon fill=\"none\" points=\"415.5,-238 415.5,-259 458.5,-259 458.5,-238 415.5,-238\" stroke=\"#000000\"/>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"433.5\" y=\"-244.8\">1</text>\n",
+       "<polygon fill=\"#ffff00\" points=\"458.5,-238 458.5,-259 495.5,-259 495.5,-238 458.5,-238\" stroke=\"transparent\"/>\n",
+       "<polygon fill=\"none\" points=\"458.5,-238 458.5,-259 495.5,-259 495.5,-238 458.5,-238\" stroke=\"#000000\"/>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"473.5\" y=\"-244.8\">1</text>\n",
+       "<polygon fill=\"#ffff00\" points=\"495.5,-238 495.5,-259 515.5,-259 515.5,-238 495.5,-238\" stroke=\"transparent\"/>\n",
+       "<polygon fill=\"none\" points=\"495.5,-238 495.5,-259 515.5,-259 515.5,-238 495.5,-238\" stroke=\"#000000\"/>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"502\" y=\"-244.8\">2</text>\n",
+       "<polygon fill=\"#ffff00\" points=\"515.5,-238 515.5,-259 542.5,-259 542.5,-238 515.5,-238\" stroke=\"transparent\"/>\n",
+       "<polygon fill=\"none\" points=\"515.5,-238 515.5,-259 542.5,-259 542.5,-238 515.5,-238\" stroke=\"#000000\"/>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"525.5\" y=\"-244.8\">0</text>\n",
+       "<polygon fill=\"#ffff00\" points=\"542.5,-238 542.5,-259 569.5,-259 569.5,-238 542.5,-238\" stroke=\"transparent\"/>\n",
+       "<polygon fill=\"none\" points=\"542.5,-238 542.5,-259 569.5,-259 569.5,-238 542.5,-238\" stroke=\"#000000\"/>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"552.5\" y=\"-244.8\">3</text>\n",
        "</g>\n",
        "<!-- dests -->\n",
        "<g class=\"node\" id=\"node3\">\n",
        "<title>dests</title>\n",
-       "<polygon fill=\"#ffc0cb\" points=\"507.5,-301 507.5,-322 556.5,-322 556.5,-301 507.5,-301\" stroke=\"transparent\"/>\n",
-       "<polyline fill=\"none\" points=\"507.5,-301 556.5,-301 \" stroke=\"#000000\"/>\n",
-       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"518\" y=\"-307.8\">dests</text>\n",
-       "<polygon fill=\"#ffc0cb\" points=\"556.5,-301 556.5,-322 577.5,-322 577.5,-301 556.5,-301\" stroke=\"transparent\"/>\n",
-       "<polyline fill=\"none\" points=\"556.5,-301 577.5,-301 \" stroke=\"#000000\"/>\n",
-       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"559.5\" y=\"-307.8\">~0</text>\n",
-       "<polyline fill=\"none\" points=\"577.5,-301 590.5,-301 \" stroke=\"#000000\"/>\n",
-       "<polyline fill=\"none\" points=\"590.5,-301 603.5,-301 \" stroke=\"#000000\"/>\n",
-       "<polygon fill=\"#ffc0cb\" points=\"603.5,-301 603.5,-322 624.5,-322 624.5,-301 603.5,-301\" stroke=\"transparent\"/>\n",
-       "<polyline fill=\"none\" points=\"603.5,-301 624.5,-301 \" stroke=\"#000000\"/>\n",
-       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"606.5\" y=\"-307.8\">~3</text>\n",
-       "<polyline fill=\"none\" points=\"624.5,-301 637.5,-301 \" stroke=\"#000000\"/>\n",
-       "<polyline fill=\"none\" points=\"637.5,-301 650.5,-301 \" stroke=\"#000000\"/>\n",
-       "<polygon fill=\"none\" points=\"507.5,-280 507.5,-301 556.5,-301 556.5,-280 507.5,-280\" stroke=\"#000000\"/>\n",
-       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"510.5\" y=\"-286.8\">#cnt/dst</text>\n",
-       "<polygon fill=\"none\" points=\"556.5,-280 556.5,-301 577.5,-301 577.5,-280 556.5,-280\" stroke=\"#000000\"/>\n",
-       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"560\" y=\"-286.8\">#2</text>\n",
-       "<polygon fill=\"#ffff00\" points=\"577.5,-280 577.5,-301 590.5,-301 590.5,-280 577.5,-280\" stroke=\"transparent\"/>\n",
-       "<polygon fill=\"none\" points=\"577.5,-280 577.5,-301 590.5,-301 590.5,-280 577.5,-280\" stroke=\"#000000\"/>\n",
-       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"580.5\" y=\"-286.8\">0</text>\n",
-       "<polygon fill=\"#ffff00\" points=\"590.5,-280 590.5,-301 603.5,-301 603.5,-280 590.5,-280\" stroke=\"transparent\"/>\n",
-       "<polygon fill=\"none\" points=\"590.5,-280 590.5,-301 603.5,-301 603.5,-280 590.5,-280\" stroke=\"#000000\"/>\n",
-       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"593.5\" y=\"-286.8\">3</text>\n",
-       "<polygon fill=\"none\" points=\"603.5,-280 603.5,-301 624.5,-301 624.5,-280 603.5,-280\" stroke=\"#000000\"/>\n",
-       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"607\" y=\"-286.8\">#2</text>\n",
-       "<polygon fill=\"#ffff00\" points=\"624.5,-280 624.5,-301 637.5,-301 637.5,-280 624.5,-280\" stroke=\"transparent\"/>\n",
-       "<polygon fill=\"none\" points=\"624.5,-280 624.5,-301 637.5,-301 637.5,-280 624.5,-280\" stroke=\"#000000\"/>\n",
-       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"627.5\" y=\"-286.8\">0</text>\n",
-       "<polygon fill=\"#ffff00\" points=\"637.5,-280 637.5,-301 650.5,-301 650.5,-280 637.5,-280\" stroke=\"transparent\"/>\n",
-       "<polygon fill=\"none\" points=\"637.5,-280 637.5,-301 650.5,-301 650.5,-280 637.5,-280\" stroke=\"#000000\"/>\n",
-       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"640.5\" y=\"-286.8\">1</text>\n",
+       "<polygon fill=\"#ffc0cb\" points=\"603.5,-301 603.5,-322 652.5,-322 652.5,-301 603.5,-301\" stroke=\"transparent\"/>\n",
+       "<polyline fill=\"none\" points=\"603.5,-301 652.5,-301 \" stroke=\"#000000\"/>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"614\" y=\"-307.8\">dests</text>\n",
+       "<polygon fill=\"#ffc0cb\" points=\"652.5,-301 652.5,-322 673.5,-322 673.5,-301 652.5,-301\" stroke=\"transparent\"/>\n",
+       "<polyline fill=\"none\" points=\"652.5,-301 673.5,-301 \" stroke=\"#000000\"/>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"655.5\" y=\"-307.8\">~0</text>\n",
+       "<polyline fill=\"none\" points=\"673.5,-301 686.5,-301 \" stroke=\"#000000\"/>\n",
+       "<polyline fill=\"none\" points=\"686.5,-301 699.5,-301 \" stroke=\"#000000\"/>\n",
+       "<polygon fill=\"#ffc0cb\" points=\"699.5,-301 699.5,-322 720.5,-322 720.5,-301 699.5,-301\" stroke=\"transparent\"/>\n",
+       "<polyline fill=\"none\" points=\"699.5,-301 720.5,-301 \" stroke=\"#000000\"/>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"702.5\" y=\"-307.8\">~3</text>\n",
+       "<polyline fill=\"none\" points=\"720.5,-301 733.5,-301 \" stroke=\"#000000\"/>\n",
+       "<polyline fill=\"none\" points=\"733.5,-301 746.5,-301 \" stroke=\"#000000\"/>\n",
+       "<polygon fill=\"none\" points=\"603.5,-280 603.5,-301 652.5,-301 652.5,-280 603.5,-280\" stroke=\"#000000\"/>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"606.5\" y=\"-286.8\">#cnt/dst</text>\n",
+       "<polygon fill=\"none\" points=\"652.5,-280 652.5,-301 673.5,-301 673.5,-280 652.5,-280\" stroke=\"#000000\"/>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"656\" y=\"-286.8\">#2</text>\n",
+       "<polygon fill=\"#ffff00\" points=\"673.5,-280 673.5,-301 686.5,-301 686.5,-280 673.5,-280\" stroke=\"transparent\"/>\n",
+       "<polygon fill=\"none\" points=\"673.5,-280 673.5,-301 686.5,-301 686.5,-280 673.5,-280\" stroke=\"#000000\"/>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"676.5\" y=\"-286.8\">0</text>\n",
+       "<polygon fill=\"#ffff00\" points=\"686.5,-280 686.5,-301 699.5,-301 699.5,-280 686.5,-280\" stroke=\"transparent\"/>\n",
+       "<polygon fill=\"none\" points=\"686.5,-280 686.5,-301 699.5,-301 699.5,-280 686.5,-280\" stroke=\"#000000\"/>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"689.5\" y=\"-286.8\">3</text>\n",
+       "<polygon fill=\"none\" points=\"699.5,-280 699.5,-301 720.5,-301 720.5,-280 699.5,-280\" stroke=\"#000000\"/>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"703\" y=\"-286.8\">#2</text>\n",
+       "<polygon fill=\"#ffff00\" points=\"720.5,-280 720.5,-301 733.5,-301 733.5,-280 720.5,-280\" stroke=\"transparent\"/>\n",
+       "<polygon fill=\"none\" points=\"720.5,-280 720.5,-301 733.5,-301 733.5,-280 720.5,-280\" stroke=\"#000000\"/>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"723.5\" y=\"-286.8\">0</text>\n",
+       "<polygon fill=\"#ffff00\" points=\"733.5,-280 733.5,-301 746.5,-301 746.5,-280 733.5,-280\" stroke=\"transparent\"/>\n",
+       "<polygon fill=\"none\" points=\"733.5,-280 733.5,-301 746.5,-301 746.5,-280 733.5,-280\" stroke=\"#000000\"/>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"736.5\" y=\"-286.8\">1</text>\n",
        "</g>\n",
        "<!-- meta -->\n",
        "<g class=\"node\" id=\"node4\">\n",
@@ -3320,26 +3458,26 @@
        "<!-- props -->\n",
        "<g class=\"node\" id=\"node5\">\n",
        "<title>props</title>\n",
-       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"233.5\" y=\"-180.8\">prop_state_acc:</text>\n",
-       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"377.5\" y=\"-180.8\">maybe</text>\n",
-       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"233.5\" y=\"-161.8\">prop_inherently_weak:</text>\n",
-       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"377.5\" y=\"-161.8\">maybe</text>\n",
-       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"233.5\" y=\"-142.8\">prop_terminal:</text>\n",
-       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"377.5\" y=\"-142.8\">maybe</text>\n",
-       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"233.5\" y=\"-123.8\">prop_weak:</text>\n",
-       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"377.5\" y=\"-123.8\">maybe</text>\n",
-       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"233.5\" y=\"-104.8\">prop_very_weak:</text>\n",
-       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"377.5\" y=\"-104.8\">maybe</text>\n",
-       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"233.5\" y=\"-85.8\">prop_complete:</text>\n",
-       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"377.5\" y=\"-85.8\">maybe</text>\n",
-       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"233.5\" y=\"-66.8\">prop_universal:</text>\n",
-       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"377.5\" y=\"-66.8\">maybe</text>\n",
-       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"233.5\" y=\"-47.8\">prop_unambiguous:</text>\n",
-       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"377.5\" y=\"-47.8\">maybe</text>\n",
-       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"233.5\" y=\"-28.8\">prop_semi_deterministic:</text>\n",
-       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"377.5\" y=\"-28.8\">maybe</text>\n",
-       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"233.5\" y=\"-9.8\">prop_stutter_invariant:</text>\n",
-       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"377.5\" y=\"-9.8\">maybe</text>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"281.5\" y=\"-180.8\">prop_state_acc:</text>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"425.5\" y=\"-180.8\">maybe</text>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"281.5\" y=\"-161.8\">prop_inherently_weak:</text>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"425.5\" y=\"-161.8\">maybe</text>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"281.5\" y=\"-142.8\">prop_terminal:</text>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"425.5\" y=\"-142.8\">maybe</text>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"281.5\" y=\"-123.8\">prop_weak:</text>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"425.5\" y=\"-123.8\">maybe</text>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"281.5\" y=\"-104.8\">prop_very_weak:</text>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"425.5\" y=\"-104.8\">maybe</text>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"281.5\" y=\"-85.8\">prop_complete:</text>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"425.5\" y=\"-85.8\">maybe</text>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"281.5\" y=\"-66.8\">prop_universal:</text>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"425.5\" y=\"-66.8\">maybe</text>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"281.5\" y=\"-47.8\">prop_unambiguous:</text>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"425.5\" y=\"-47.8\">maybe</text>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"281.5\" y=\"-28.8\">prop_semi_deterministic:</text>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"425.5\" y=\"-28.8\">maybe</text>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"281.5\" y=\"-9.8\">prop_stutter_invariant:</text>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"425.5\" y=\"-9.8\">maybe</text>\n",
        "</g>\n",
        "<!-- props&#45;&gt;edges -->\n",
        "</g>\n",
@@ -3376,10 +3514,12 @@
      "name": "stdout",
      "output_type": "stream",
      "text": [
+      "0\n",
       "1\n",
       "0\n",
       "1\n",
       "1\n",
+      "1\n",
       "0\n",
       "4294967295\n",
       "4294967292\n"
@@ -3407,10 +3547,12 @@
      "name": "stdout",
      "output_type": "stream",
      "text": [
+      "[0]\n",
       "[1]\n",
       "[0]\n",
       "[1]\n",
       "[1]\n",
+      "[1]\n",
       "[0]\n",
       "[0, 3]\n",
       "[0, 1]\n"
@@ -3438,10 +3580,12 @@
      "name": "stdout",
      "output_type": "stream",
      "text": [
+      "[0]\n",
       "[1]\n",
       "[0]\n",
       "[1]\n",
       "[1]\n",
+      "[1]\n",
       "[0]\n",
       "[0, 3]\n",
       "[0, 1]\n"
@@ -3483,164 +3627,181 @@
        "<!-- Generated by graphviz version 2.40.1 (20161225.0304)\n",
        " -->\n",
        "<!-- Pages: 1 -->\n",
-       "<svg width=\"466pt\" height=\"269pt\"\n",
-       " viewBox=\"0.00 0.00 466.30 269.00\" xmlns=\"http://www.w3.org/2000/svg\" xmlns:xlink=\"http://www.w3.org/1999/xlink\">\n",
-       "<g id=\"graph0\" class=\"graph\" transform=\"scale(1 1) rotate(0) translate(4 265)\">\n",
-       "<polygon fill=\"#ffffff\" stroke=\"transparent\" points=\"-4,4 -4,-265 462.3,-265 462.3,4 -4,4\"/>\n",
-       "<text text-anchor=\"start\" x=\"177.15\" y=\"-246.8\" font-family=\"Lato\" font-size=\"14.00\" fill=\"#000000\">Fin(</text>\n",
-       "<text text-anchor=\"start\" x=\"202.15\" y=\"-246.8\" font-family=\"Lato\" font-size=\"14.00\" fill=\"#1f78b4\">⓿</text>\n",
-       "<text text-anchor=\"start\" x=\"218.15\" y=\"-246.8\" font-family=\"Lato\" font-size=\"14.00\" fill=\"#000000\">) &amp; Inf(</text>\n",
-       "<text text-anchor=\"start\" x=\"261.15\" y=\"-246.8\" font-family=\"Lato\" font-size=\"14.00\" fill=\"#ff4da0\">❶</text>\n",
-       "<text text-anchor=\"start\" x=\"277.15\" y=\"-246.8\" font-family=\"Lato\" font-size=\"14.00\" fill=\"#000000\">)</text>\n",
-       "<text text-anchor=\"start\" x=\"200.15\" y=\"-232.8\" font-family=\"Lato\" font-size=\"14.00\" fill=\"#000000\">[Rabin 1]</text>\n",
+       "<svg width=\"468pt\" height=\"278pt\"\n",
+       " viewBox=\"0.00 0.00 468.30 278.00\" xmlns=\"http://www.w3.org/2000/svg\" xmlns:xlink=\"http://www.w3.org/1999/xlink\">\n",
+       "<g id=\"graph0\" class=\"graph\" transform=\"scale(1 1) rotate(0) translate(4 274)\">\n",
+       "<polygon fill=\"#ffffff\" stroke=\"transparent\" points=\"-4,4 -4,-274 464.3,-274 464.3,4 -4,4\"/>\n",
+       "<text text-anchor=\"start\" x=\"178.15\" y=\"-255.8\" font-family=\"Lato\" font-size=\"14.00\" fill=\"#000000\">Fin(</text>\n",
+       "<text text-anchor=\"start\" x=\"203.15\" y=\"-255.8\" font-family=\"Lato\" font-size=\"14.00\" fill=\"#1f78b4\">⓿</text>\n",
+       "<text text-anchor=\"start\" x=\"219.15\" y=\"-255.8\" font-family=\"Lato\" font-size=\"14.00\" fill=\"#000000\">) &amp; Inf(</text>\n",
+       "<text text-anchor=\"start\" x=\"262.15\" y=\"-255.8\" font-family=\"Lato\" font-size=\"14.00\" fill=\"#ff4da0\">❶</text>\n",
+       "<text text-anchor=\"start\" x=\"278.15\" y=\"-255.8\" font-family=\"Lato\" font-size=\"14.00\" fill=\"#000000\">)</text>\n",
+       "<text text-anchor=\"start\" x=\"201.15\" y=\"-241.8\" font-family=\"Lato\" font-size=\"14.00\" fill=\"#000000\">[Rabin 1]</text>\n",
        "<!-- I -->\n",
        "<!-- &#45;7 -->\n",
        "<g id=\"node2\" class=\"node\">\n",
        "<title>&#45;7</title>\n",
-       "<ellipse fill=\"#ffffaa\" stroke=\"#000000\" cx=\"39.8\" cy=\"-48\" rx=\"1.8\" ry=\"1.8\"/>\n",
+       "<ellipse fill=\"#ffffaa\" stroke=\"#000000\" cx=\"39.8\" cy=\"-52\" rx=\"1.8\" ry=\"1.8\"/>\n",
        "</g>\n",
        "<!-- I&#45;&gt;&#45;7 -->\n",
        "<g id=\"edge1\" class=\"edge\">\n",
        "<title>I&#45;&gt;&#45;7</title>\n",
-       "<path fill=\"none\" stroke=\"#000000\" d=\"M1.1821,-48C4.6508,-48 20.5694,-48 30.8552,-48\"/>\n",
-       "<polygon fill=\"none\" stroke=\"#000000\" points=\"30.9898,-50.4501 37.9898,-48 30.9898,-45.5501 30.9898,-50.4501\"/>\n",
+       "<path fill=\"none\" stroke=\"#000000\" d=\"M1.1821,-52C4.6508,-52 20.5694,-52 30.8552,-52\"/>\n",
+       "<polygon fill=\"none\" stroke=\"#000000\" points=\"30.9898,-54.4501 37.9898,-52 30.9898,-49.5501 30.9898,-54.4501\"/>\n",
        "</g>\n",
        "<!-- 0 -->\n",
        "<g id=\"node3\" class=\"node\">\n",
        "<title>0</title>\n",
-       "<ellipse fill=\"#ffffaa\" stroke=\"#000000\" cx=\"177.6\" cy=\"-94\" rx=\"18\" ry=\"18\"/>\n",
-       "<text text-anchor=\"middle\" x=\"177.6\" y=\"-90.3\" font-family=\"Lato\" font-size=\"14.00\" fill=\"#000000\">0</text>\n",
+       "<ellipse fill=\"#ffffaa\" stroke=\"#000000\" cx=\"177.6\" cy=\"-98\" rx=\"18\" ry=\"18\"/>\n",
+       "<text text-anchor=\"middle\" x=\"177.6\" y=\"-94.3\" font-family=\"Lato\" font-size=\"14.00\" fill=\"#000000\">0</text>\n",
        "</g>\n",
        "<!-- &#45;7&#45;&gt;0 -->\n",
        "<g id=\"edge2\" class=\"edge\">\n",
        "<title>&#45;7&#45;&gt;0</title>\n",
-       "<path fill=\"none\" stroke=\"#000000\" d=\"M41.6817,-48.3648C50.2252,-50.0444 86.176,-57.3649 114.6,-67 128.166,-71.5986 142.9035,-77.8422 154.7114,-83.1672\"/>\n",
-       "<polygon fill=\"#000000\" stroke=\"#000000\" points=\"161.2942,-86.1769 153.6182,-86.1309 158.1111,-84.7215 154.928,-83.2662 154.928,-83.2662 154.928,-83.2662 158.1111,-84.7215 156.2378,-80.4014 161.2942,-86.1769 161.2942,-86.1769\"/>\n",
+       "<path fill=\"none\" stroke=\"#000000\" d=\"M41.6817,-52.3648C50.2252,-54.0444 86.176,-61.3649 114.6,-71 128.166,-75.5986 142.9035,-81.8422 154.7114,-87.1672\"/>\n",
+       "<polygon fill=\"#000000\" stroke=\"#000000\" points=\"161.2942,-90.1769 153.6182,-90.1309 158.1111,-88.7215 154.928,-87.2662 154.928,-87.2662 154.928,-87.2662 158.1111,-88.7215 156.2378,-84.4014 161.2942,-90.1769 161.2942,-90.1769\"/>\n",
        "</g>\n",
        "<!-- 1 -->\n",
        "<g id=\"node4\" class=\"node\">\n",
        "<title>1</title>\n",
-       "<ellipse fill=\"#ffffaa\" stroke=\"#000000\" cx=\"439.8\" cy=\"-66\" rx=\"18\" ry=\"18\"/>\n",
-       "<text text-anchor=\"middle\" x=\"439.8\" y=\"-62.3\" font-family=\"Lato\" font-size=\"14.00\" fill=\"#000000\">1</text>\n",
+       "<ellipse fill=\"#ffffaa\" stroke=\"#000000\" cx=\"439.8\" cy=\"-69\" rx=\"18\" ry=\"18\"/>\n",
+       "<text text-anchor=\"middle\" x=\"439.8\" y=\"-65.3\" font-family=\"Lato\" font-size=\"14.00\" fill=\"#000000\">1</text>\n",
        "</g>\n",
        "<!-- &#45;7&#45;&gt;1 -->\n",
        "<g id=\"edge3\" class=\"edge\">\n",
        "<title>&#45;7&#45;&gt;1</title>\n",
-       "<path fill=\"none\" stroke=\"#000000\" d=\"M40.6334,-46.403C45.1063,-38.0742 67.1636,0 96.6,0 96.6,0 96.6,0 383,0 406.0233,0 421.7555,-23.3586 430.7234,-42.2832\"/>\n",
-       "<polygon fill=\"#000000\" stroke=\"#000000\" points=\"433.7223,-49.0034 427.9931,-43.8947 432.296,-45.8072 430.8696,-42.611 430.8696,-42.611 430.8696,-42.611 432.296,-45.8072 433.7462,-41.3273 433.7223,-49.0034 433.7223,-49.0034\"/>\n",
+       "<path fill=\"none\" stroke=\"#000000\" d=\"M40.5959,-50.2699C44.8775,-41.2471 66.1176,0 96.6,0 96.6,0 96.6,0 383,0 406.9769,0 422.7037,-25.1421 431.404,-45.0729\"/>\n",
+       "<polygon fill=\"#000000\" stroke=\"#000000\" points=\"434.0869,-51.5884 428.5088,-46.3151 432.7542,-48.352 431.4215,-45.1157 431.4215,-45.1157 431.4215,-45.1157 432.7542,-48.352 434.3343,-43.9162 434.0869,-51.5884 434.0869,-51.5884\"/>\n",
        "</g>\n",
        "<!-- 2 -->\n",
        "<g id=\"node5\" class=\"node\">\n",
        "<title>2</title>\n",
-       "<ellipse fill=\"#ffffaa\" stroke=\"#000000\" cx=\"96.6\" cy=\"-94\" rx=\"18\" ry=\"18\"/>\n",
-       "<text text-anchor=\"middle\" x=\"96.6\" y=\"-90.3\" font-family=\"Lato\" font-size=\"14.00\" fill=\"#000000\">2</text>\n",
+       "<ellipse fill=\"#ffffaa\" stroke=\"#000000\" cx=\"96.6\" cy=\"-98\" rx=\"18\" ry=\"18\"/>\n",
+       "<text text-anchor=\"middle\" x=\"96.6\" y=\"-94.3\" font-family=\"Lato\" font-size=\"14.00\" fill=\"#000000\">2</text>\n",
        "</g>\n",
        "<!-- &#45;7&#45;&gt;2 -->\n",
        "<g id=\"edge4\" class=\"edge\">\n",
        "<title>&#45;7&#45;&gt;2</title>\n",
-       "<path fill=\"none\" stroke=\"#000000\" d=\"M41.2041,-49.1371C46.107,-53.1078 62.9194,-66.7235 76.7491,-77.9235\"/>\n",
-       "<polygon fill=\"#000000\" stroke=\"#000000\" points=\"82.45,-82.5405 75.0277,-80.5829 79.7301,-80.3378 77.0102,-78.135 77.0102,-78.135 77.0102,-78.135 79.7301,-80.3378 78.9927,-75.6871 82.45,-82.5405 82.45,-82.5405\"/>\n",
+       "<path fill=\"none\" stroke=\"#000000\" d=\"M41.2041,-53.1371C46.107,-57.1078 62.9194,-70.7235 76.7491,-81.9235\"/>\n",
+       "<polygon fill=\"#000000\" stroke=\"#000000\" points=\"82.45,-86.5405 75.0277,-84.5829 79.7301,-84.3378 77.0102,-82.135 77.0102,-82.135 77.0102,-82.135 79.7301,-84.3378 78.9927,-79.6871 82.45,-86.5405 82.45,-86.5405\"/>\n",
+       "</g>\n",
+       "<!-- 0&#45;&gt;0 -->\n",
+       "<g id=\"edge5\" class=\"edge\">\n",
+       "<title>0&#45;&gt;0</title>\n",
+       "<path fill=\"none\" stroke=\"#000000\" d=\"M170.5688,-114.6641C169.0063,-124.625 171.35,-134 177.6,-134 182.2875,-134 184.7777,-128.7266 185.0707,-121.8876\"/>\n",
+       "<polygon fill=\"#000000\" stroke=\"#000000\" points=\"184.6313,-114.6641 188.2006,-121.4598 184.8438,-118.1576 185.0564,-121.6511 185.0564,-121.6511 185.0564,-121.6511 184.8438,-118.1576 181.9122,-121.8425 184.6313,-114.6641 184.6313,-114.6641\"/>\n",
+       "<text text-anchor=\"start\" x=\"159.1\" y=\"-152.8\" font-family=\"Lato\" font-size=\"14.00\" fill=\"#000000\">a &amp; !b</text>\n",
+       "<text text-anchor=\"start\" x=\"169.6\" y=\"-137.8\" font-family=\"Lato\" font-size=\"14.00\" fill=\"#1f78b4\">⓿</text>\n",
        "</g>\n",
        "<!-- 0&#45;&gt;1 -->\n",
-       "<g id=\"edge5\" class=\"edge\">\n",
+       "<g id=\"edge6\" class=\"edge\">\n",
        "<title>0&#45;&gt;1</title>\n",
-       "<path fill=\"none\" stroke=\"#000000\" d=\"M181.5454,-111.5929C189.1907,-140.53 208.9538,-195 249.4,-195 249.4,-195 249.4,-195 383,-195 405.5398,-195 425.0529,-128.1998 434.2236,-90.7389\"/>\n",
-       "<polygon fill=\"#000000\" stroke=\"#000000\" points=\"435.9176,-83.6664 437.3503,-91.2076 435.1023,-87.0701 434.287,-90.4739 434.287,-90.4739 434.287,-90.4739 435.1023,-87.0701 431.2236,-89.7401 435.9176,-83.6664 435.9176,-83.6664\"/>\n",
-       "<text text-anchor=\"start\" x=\"288.2\" y=\"-213.8\" font-family=\"Lato\" font-size=\"14.00\" fill=\"#000000\">!a &amp; !b</text>\n",
-       "<text text-anchor=\"start\" x=\"300.7\" y=\"-198.8\" font-family=\"Lato\" font-size=\"14.00\" fill=\"#1f78b4\">⓿</text>\n",
+       "<path fill=\"none\" stroke=\"#000000\" d=\"M181.1474,-115.9815C188.2755,-146.2237 207.3907,-204 249.4,-204 249.4,-204 249.4,-204 383,-204 406.6982,-204 425.9991,-132.4288 434.7425,-93.5111\"/>\n",
+       "<polygon fill=\"#000000\" stroke=\"#000000\" points=\"436.2509,-86.6489 437.8245,-94.162 435.4994,-90.0673 434.748,-93.4857 434.748,-93.4857 434.748,-93.4857 435.4994,-90.0673 431.6714,-92.8094 436.2509,-86.6489 436.2509,-86.6489\"/>\n",
+       "<text text-anchor=\"start\" x=\"288.2\" y=\"-222.8\" font-family=\"Lato\" font-size=\"14.00\" fill=\"#000000\">!a &amp; !b</text>\n",
+       "<text text-anchor=\"start\" x=\"300.7\" y=\"-207.8\" font-family=\"Lato\" font-size=\"14.00\" fill=\"#1f78b4\">⓿</text>\n",
        "</g>\n",
        "<!-- &#45;1 -->\n",
        "<g id=\"node6\" class=\"node\">\n",
        "<title>&#45;1</title>\n",
-       "<ellipse fill=\"#ffffaa\" stroke=\"#000000\" cx=\"249.4\" cy=\"-100\" rx=\"1.8\" ry=\"1.8\"/>\n",
+       "<ellipse fill=\"#ffffaa\" stroke=\"#000000\" cx=\"249.4\" cy=\"-112\" rx=\"1.8\" ry=\"1.8\"/>\n",
        "</g>\n",
        "<!-- 0&#45;&gt;&#45;1 -->\n",
-       "<g id=\"edge6\" class=\"edge\">\n",
+       "<g id=\"edge7\" class=\"edge\">\n",
        "<title>0&#45;&gt;&#45;1</title>\n",
-       "<path fill=\"none\" stroke=\"#000000\" d=\"M195.7182,-95.5141C209.9987,-96.7074 229.3013,-98.3204 240.4454,-99.2517\"/>\n",
-       "<polygon fill=\"none\" stroke=\"#000000\" points=\"240.4185,-101.7079 247.5983,-99.8494 240.8266,-96.8249 240.4185,-101.7079\"/>\n",
-       "<text text-anchor=\"start\" x=\"218.1\" y=\"-116.8\" font-family=\"Lato\" font-size=\"14.00\" fill=\"#000000\">a</text>\n",
-       "<text text-anchor=\"start\" x=\"213.6\" y=\"-101.8\" font-family=\"Lato\" font-size=\"14.00\" fill=\"#ff4da0\">❶</text>\n",
+       "<path fill=\"none\" stroke=\"#000000\" d=\"M195.3483,-101.4607C209.7661,-104.2719 229.4845,-108.1168 240.6853,-110.3008\"/>\n",
+       "<polygon fill=\"none\" stroke=\"#000000\" points=\"240.2384,-112.7097 247.578,-111.6447 241.1763,-107.9003 240.2384,-112.7097\"/>\n",
+       "<text text-anchor=\"start\" x=\"218.1\" y=\"-125.8\" font-family=\"Lato\" font-size=\"14.00\" fill=\"#000000\">a</text>\n",
+       "<text text-anchor=\"start\" x=\"213.6\" y=\"-110.8\" font-family=\"Lato\" font-size=\"14.00\" fill=\"#ff4da0\">❶</text>\n",
        "</g>\n",
        "<!-- 1&#45;&gt;0 -->\n",
-       "<g id=\"edge9\" class=\"edge\">\n",
-       "<title>1&#45;&gt;0</title>\n",
-       "<path fill=\"none\" stroke=\"#000000\" d=\"M423.9172,-57.1695C412.8056,-51.8118 397.4273,-46 383,-46 249.4,-46 249.4,-46 249.4,-46 227.6911,-46 207.5721,-61.3527 194.1882,-74.6927\"/>\n",
-       "<polygon fill=\"#000000\" stroke=\"#000000\" points=\"189.2264,-79.858 191.804,-72.6276 191.651,-77.3339 194.0757,-74.8098 194.0757,-74.8098 194.0757,-74.8098 191.651,-77.3339 196.3474,-76.992 189.2264,-79.858 189.2264,-79.858\"/>\n",
-       "<text text-anchor=\"start\" x=\"291.7\" y=\"-49.8\" font-family=\"Lato\" font-size=\"14.00\" fill=\"#000000\">a &amp; b</text>\n",
-       "</g>\n",
-       "<!-- 1&#45;&gt;1 -->\n",
        "<g id=\"edge10\" class=\"edge\">\n",
-       "<title>1&#45;&gt;1</title>\n",
-       "<path fill=\"none\" stroke=\"#000000\" d=\"M436.5643,-83.7817C436.0144,-93.3149 437.093,-102 439.8,-102 441.788,-102 442.8977,-97.3161 443.1292,-91.0521\"/>\n",
-       "<polygon fill=\"#000000\" stroke=\"#000000\" points=\"443.0357,-83.7817 446.2756,-90.7406 443.0808,-87.2814 443.1258,-90.7812 443.1258,-90.7812 443.1258,-90.7812 443.0808,-87.2814 439.9761,-90.8217 443.0357,-83.7817 443.0357,-83.7817\"/>\n",
-       "<text text-anchor=\"start\" x=\"421.3\" y=\"-120.8\" font-family=\"Lato\" font-size=\"14.00\" fill=\"#000000\">!a &amp; b</text>\n",
-       "<text text-anchor=\"start\" x=\"431.8\" y=\"-105.8\" font-family=\"Lato\" font-size=\"14.00\" fill=\"#ff4da0\">❶</text>\n",
+       "<title>1&#45;&gt;0</title>\n",
+       "<path fill=\"none\" stroke=\"#000000\" d=\"M424.5565,-59.1124C413.4854,-52.8787 397.8944,-46 383,-46 249.4,-46 249.4,-46 249.4,-46 226.8449,-46 206.5844,-63.0403 193.3827,-77.6115\"/>\n",
+       "<polygon fill=\"#000000\" stroke=\"#000000\" points=\"188.5096,-83.238 190.7113,-75.8844 190.801,-80.5923 193.0924,-77.9466 193.0924,-77.9466 193.0924,-77.9466 190.801,-80.5923 195.4735,-80.0089 188.5096,-83.238 188.5096,-83.238\"/>\n",
+       "<text text-anchor=\"start\" x=\"290.2\" y=\"-64.8\" font-family=\"Lato\" font-size=\"14.00\" fill=\"#000000\">a &amp; !b</text>\n",
+       "<text text-anchor=\"start\" x=\"300.7\" y=\"-49.8\" font-family=\"Lato\" font-size=\"14.00\" fill=\"#1f78b4\">⓿</text>\n",
        "</g>\n",
        "<!-- 1&#45;&gt;1 -->\n",
        "<g id=\"edge11\" class=\"edge\">\n",
        "<title>1&#45;&gt;1</title>\n",
-       "<path fill=\"none\" stroke=\"#000000\" d=\"M434.7906,-83.5771C431.3451,-104.718 433.0148,-132 439.8,-132 445.843,-132 447.8285,-110.3596 445.7564,-90.6907\"/>\n",
-       "<polygon fill=\"#000000\" stroke=\"#000000\" points=\"444.8094,-83.5771 448.8556,-90.1002 445.2713,-87.0465 445.7332,-90.5159 445.7332,-90.5159 445.7332,-90.5159 445.2713,-87.0465 442.6107,-90.9316 444.8094,-83.5771 444.8094,-83.5771\"/>\n",
-       "<text text-anchor=\"start\" x=\"435.3\" y=\"-149.8\" font-family=\"Lato\" font-size=\"14.00\" fill=\"#000000\">1</text>\n",
-       "<text text-anchor=\"start\" x=\"423.8\" y=\"-135.8\" font-family=\"Lato\" font-size=\"14.00\" fill=\"#1f78b4\">⓿</text>\n",
-       "<text text-anchor=\"start\" x=\"439.8\" y=\"-135.8\" font-family=\"Lato\" font-size=\"14.00\" fill=\"#ff4da0\">❶</text>\n",
+       "<path fill=\"none\" stroke=\"#000000\" d=\"M437.6291,-87.1527C437.2951,-96.5391 438.0188,-105 439.8,-105 441.1081,-105 441.8458,-100.437 442.0132,-94.2953\"/>\n",
+       "<polygon fill=\"#000000\" stroke=\"#000000\" points=\"441.9709,-87.1527 445.1624,-94.1339 441.9917,-90.6526 442.0124,-94.1526 442.0124,-94.1526 442.0124,-94.1526 441.9917,-90.6526 438.8625,-94.1713 441.9709,-87.1527 441.9709,-87.1527\"/>\n",
+       "<text text-anchor=\"start\" x=\"419.3\" y=\"-123.8\" font-family=\"Lato\" font-size=\"14.00\" fill=\"#000000\">!a &amp; !b</text>\n",
+       "<text text-anchor=\"start\" x=\"431.8\" y=\"-108.8\" font-family=\"Lato\" font-size=\"14.00\" fill=\"#1f78b4\">⓿</text>\n",
+       "</g>\n",
+       "<!-- 1&#45;&gt;1 -->\n",
+       "<g id=\"edge12\" class=\"edge\">\n",
+       "<title>1&#45;&gt;1</title>\n",
+       "<path fill=\"none\" stroke=\"#000000\" d=\"M436.425,-86.9063C434.175,-108 435.3,-135 439.8,-135 443.8078,-135 445.1385,-113.5833 443.7922,-93.9965\"/>\n",
+       "<polygon fill=\"#000000\" stroke=\"#000000\" points=\"443.175,-86.9063 446.9202,-93.6067 443.4785,-90.3931 443.7821,-93.8799 443.7821,-93.8799 443.7821,-93.8799 443.4785,-90.3931 440.644,-94.1531 443.175,-86.9063 443.175,-86.9063\"/>\n",
+       "<text text-anchor=\"start\" x=\"421.3\" y=\"-153.8\" font-family=\"Lato\" font-size=\"14.00\" fill=\"#000000\">!a &amp; b</text>\n",
+       "<text text-anchor=\"start\" x=\"431.8\" y=\"-138.8\" font-family=\"Lato\" font-size=\"14.00\" fill=\"#ff4da0\">❶</text>\n",
+       "</g>\n",
+       "<!-- 1&#45;&gt;1 -->\n",
+       "<g id=\"edge13\" class=\"edge\">\n",
+       "<title>1&#45;&gt;1</title>\n",
+       "<path fill=\"none\" stroke=\"#000000\" d=\"M435.6867,-86.7715C431.1164,-117.4688 432.4875,-165 439.8,-165 446.5698,-165 448.2473,-124.2623 444.8327,-93.8583\"/>\n",
+       "<polygon fill=\"#000000\" stroke=\"#000000\" points=\"443.9133,-86.7715 447.9378,-93.308 444.3636,-90.2424 444.814,-93.7133 444.814,-93.7133 444.814,-93.7133 444.3636,-90.2424 441.6902,-94.1186 443.9133,-86.7715 443.9133,-86.7715\"/>\n",
+       "<text text-anchor=\"start\" x=\"435.3\" y=\"-182.8\" font-family=\"Lato\" font-size=\"14.00\" fill=\"#000000\">1</text>\n",
+       "<text text-anchor=\"start\" x=\"423.8\" y=\"-168.8\" font-family=\"Lato\" font-size=\"14.00\" fill=\"#1f78b4\">⓿</text>\n",
+       "<text text-anchor=\"start\" x=\"439.8\" y=\"-168.8\" font-family=\"Lato\" font-size=\"14.00\" fill=\"#ff4da0\">❶</text>\n",
        "</g>\n",
        "<!-- 2&#45;&gt;0 -->\n",
-       "<g id=\"edge12\" class=\"edge\">\n",
+       "<g id=\"edge14\" class=\"edge\">\n",
        "<title>2&#45;&gt;0</title>\n",
-       "<path fill=\"none\" stroke=\"#000000\" d=\"M114.9802,-94C126.0352,-94 140.2622,-94 152.3609,-94\"/>\n",
-       "<polygon fill=\"#000000\" stroke=\"#000000\" points=\"159.5716,-94 152.5716,-97.1501 156.0716,-94 152.5716,-94.0001 152.5716,-94.0001 152.5716,-94.0001 156.0716,-94 152.5716,-90.8501 159.5716,-94 159.5716,-94\"/>\n",
-       "<text text-anchor=\"middle\" x=\"137.1\" y=\"-97.8\" font-family=\"Lato\" font-size=\"14.00\" fill=\"#000000\">1</text>\n",
+       "<path fill=\"none\" stroke=\"#000000\" d=\"M114.9802,-98C126.0352,-98 140.2622,-98 152.3609,-98\"/>\n",
+       "<polygon fill=\"#000000\" stroke=\"#000000\" points=\"159.5716,-98 152.5716,-101.1501 156.0716,-98 152.5716,-98.0001 152.5716,-98.0001 152.5716,-98.0001 156.0716,-98 152.5716,-94.8501 159.5716,-98 159.5716,-98\"/>\n",
+       "<text text-anchor=\"middle\" x=\"137.1\" y=\"-101.8\" font-family=\"Lato\" font-size=\"14.00\" fill=\"#000000\">1</text>\n",
        "</g>\n",
        "<!-- &#45;1&#45;&gt;0 -->\n",
-       "<g id=\"edge7\" class=\"edge\">\n",
+       "<g id=\"edge8\" class=\"edge\">\n",
        "<title>&#45;1&#45;&gt;0</title>\n",
-       "<path fill=\"none\" stroke=\"#000000\" d=\"M247.5999,-99.1282C244.1873,-97.5294 236.4995,-94.1837 229.6,-93 220.9272,-91.5121 211.322,-91.3019 202.7509,-91.6123\"/>\n",
-       "<polygon fill=\"#000000\" stroke=\"#000000\" points=\"195.5345,-92 202.3554,-88.4789 199.0295,-91.8122 202.5244,-91.6243 202.5244,-91.6243 202.5244,-91.6243 199.0295,-91.8122 202.6935,-94.7698 195.5345,-92 195.5345,-92\"/>\n",
+       "<path fill=\"none\" stroke=\"#000000\" d=\"M247.6658,-110.6757C244.3631,-108.2393 236.8511,-103.1037 229.6,-101 221.1365,-98.5446 211.5812,-97.5239 202.9917,-97.2014\"/>\n",
+       "<polygon fill=\"#000000\" stroke=\"#000000\" points=\"195.7438,-97.0792 202.796,-94.0477 199.2433,-97.1382 202.7428,-97.1973 202.7428,-97.1973 202.7428,-97.1973 199.2433,-97.1382 202.6897,-100.3468 195.7438,-97.0792 195.7438,-97.0792\"/>\n",
        "</g>\n",
        "<!-- 3 -->\n",
        "<g id=\"node7\" class=\"node\">\n",
        "<title>3</title>\n",
-       "<ellipse fill=\"#ffffaa\" stroke=\"#000000\" cx=\"308.7\" cy=\"-100\" rx=\"18\" ry=\"18\"/>\n",
-       "<text text-anchor=\"middle\" x=\"308.7\" y=\"-96.3\" font-family=\"Lato\" font-size=\"14.00\" fill=\"#000000\">3</text>\n",
+       "<ellipse fill=\"#ffffaa\" stroke=\"#000000\" cx=\"308.7\" cy=\"-112\" rx=\"18\" ry=\"18\"/>\n",
+       "<text text-anchor=\"middle\" x=\"308.7\" y=\"-108.3\" font-family=\"Lato\" font-size=\"14.00\" fill=\"#000000\">3</text>\n",
        "</g>\n",
        "<!-- &#45;1&#45;&gt;3 -->\n",
-       "<g id=\"edge8\" class=\"edge\">\n",
+       "<g id=\"edge9\" class=\"edge\">\n",
        "<title>&#45;1&#45;&gt;3</title>\n",
-       "<path fill=\"none\" stroke=\"#000000\" d=\"M251.373,-100C256.4129,-100 270.269,-100 283.0957,-100\"/>\n",
-       "<polygon fill=\"#000000\" stroke=\"#000000\" points=\"290.4545,-100 283.4546,-103.1501 286.9545,-100 283.4545,-100.0001 283.4545,-100.0001 283.4545,-100.0001 286.9545,-100 283.4545,-96.8501 290.4545,-100 290.4545,-100\"/>\n",
+       "<path fill=\"none\" stroke=\"#000000\" d=\"M251.373,-112C256.4129,-112 270.269,-112 283.0957,-112\"/>\n",
+       "<polygon fill=\"#000000\" stroke=\"#000000\" points=\"290.4545,-112 283.4546,-115.1501 286.9545,-112 283.4545,-112.0001 283.4545,-112.0001 283.4545,-112.0001 286.9545,-112 283.4545,-108.8501 290.4545,-112 290.4545,-112\"/>\n",
        "</g>\n",
        "<!-- &#45;4 -->\n",
        "<g id=\"node8\" class=\"node\">\n",
        "<title>&#45;4</title>\n",
-       "<ellipse fill=\"#ffffaa\" stroke=\"#000000\" cx=\"383\" cy=\"-100\" rx=\"1.8\" ry=\"1.8\"/>\n",
+       "<ellipse fill=\"#ffffaa\" stroke=\"#000000\" cx=\"383\" cy=\"-112\" rx=\"1.8\" ry=\"1.8\"/>\n",
        "</g>\n",
        "<!-- 3&#45;&gt;&#45;4 -->\n",
-       "<g id=\"edge13\" class=\"edge\">\n",
+       "<g id=\"edge15\" class=\"edge\">\n",
        "<title>3&#45;&gt;&#45;4</title>\n",
-       "<path fill=\"none\" stroke=\"#000000\" d=\"M327.0663,-100C341.9861,-100 362.3911,-100 373.9818,-100\"/>\n",
-       "<polygon fill=\"none\" stroke=\"#000000\" points=\"374.1146,-102.4501 381.1145,-100 374.1145,-97.5501 374.1146,-102.4501\"/>\n",
-       "<text text-anchor=\"start\" x=\"349.7\" y=\"-118.8\" font-family=\"Lato\" font-size=\"14.00\" fill=\"#000000\">!a</text>\n",
-       "<text text-anchor=\"start\" x=\"347.2\" y=\"-103.8\" font-family=\"Lato\" font-size=\"14.00\" fill=\"#1f78b4\">⓿</text>\n",
+       "<path fill=\"none\" stroke=\"#000000\" d=\"M327.0663,-112C341.9861,-112 362.3911,-112 373.9818,-112\"/>\n",
+       "<polygon fill=\"none\" stroke=\"#000000\" points=\"374.1146,-114.4501 381.1145,-112 374.1145,-109.5501 374.1146,-114.4501\"/>\n",
+       "<text text-anchor=\"start\" x=\"349.7\" y=\"-130.8\" font-family=\"Lato\" font-size=\"14.00\" fill=\"#000000\">!a</text>\n",
+       "<text text-anchor=\"start\" x=\"347.2\" y=\"-115.8\" font-family=\"Lato\" font-size=\"14.00\" fill=\"#1f78b4\">⓿</text>\n",
        "</g>\n",
        "<!-- &#45;4&#45;&gt;0 -->\n",
-       "<g id=\"edge14\" class=\"edge\">\n",
+       "<g id=\"edge16\" class=\"edge\">\n",
        "<title>&#45;4&#45;&gt;0</title>\n",
-       "<path fill=\"none\" stroke=\"#000000\" d=\"M382.559,-102.0283C381.0943,-108.2022 375.7546,-126.7829 363.2,-134 305.5517,-167.1396 274.4855,-158.7305 213.6,-132 205.2789,-128.3468 197.9655,-121.7493 192.1423,-115.0652\"/>\n",
-       "<polygon fill=\"#000000\" stroke=\"#000000\" points=\"187.6118,-109.4929 194.4719,-112.9371 189.8198,-112.2086 192.0277,-114.9243 192.0277,-114.9243 192.0277,-114.9243 189.8198,-112.2086 189.5836,-116.9115 187.6118,-109.4929 187.6118,-109.4929\"/>\n",
+       "<path fill=\"none\" stroke=\"#000000\" d=\"M382.5185,-113.9135C380.9376,-119.7373 375.2987,-137.2587 363.2,-144 305.1071,-176.3692 273.5362,-169.8131 213.6,-141 204.2301,-136.4956 196.4134,-128.2676 190.4844,-120.206\"/>\n",
+       "<polygon fill=\"#000000\" stroke=\"#000000\" points=\"186.3239,-114.1381 192.8804,-118.1301 188.3032,-117.0247 190.2824,-119.9114 190.2824,-119.9114 190.2824,-119.9114 188.3032,-117.0247 187.6844,-121.6927 186.3239,-114.1381 186.3239,-114.1381\"/>\n",
        "</g>\n",
        "<!-- &#45;4&#45;&gt;1 -->\n",
-       "<g id=\"edge15\" class=\"edge\">\n",
+       "<g id=\"edge17\" class=\"edge\">\n",
        "<title>&#45;4&#45;&gt;1</title>\n",
-       "<path fill=\"none\" stroke=\"#000000\" d=\"M384.8898,-98.8688C390.0842,-95.7595 405.0556,-86.7977 418.0556,-79.016\"/>\n",
-       "<polygon fill=\"#000000\" stroke=\"#000000\" points=\"424.2275,-75.3216 419.8392,-81.6196 421.2244,-77.1192 418.2213,-78.9169 418.2213,-78.9169 418.2213,-78.9169 421.2244,-77.1192 416.6034,-76.2141 424.2275,-75.3216 424.2275,-75.3216\"/>\n",
+       "<path fill=\"none\" stroke=\"#000000\" d=\"M384.8898,-110.5693C390.2649,-106.5001 406.1095,-94.5051 419.4051,-84.4398\"/>\n",
+       "<polygon fill=\"#000000\" stroke=\"#000000\" points=\"425.2878,-79.9864 421.608,-86.723 422.4972,-82.0989 419.7067,-84.2115 419.7067,-84.2115 419.7067,-84.2115 422.4972,-82.0989 417.8054,-81.7 425.2878,-79.9864 425.2878,-79.9864\"/>\n",
        "</g>\n",
        "</g>\n",
        "</svg>\n"
       ],
       "text/plain": [
-       "<spot.twa_graph; proxy of <Swig Object of type 'std::shared_ptr< spot::twa_graph > *' at 0x7f616c1788a0> >"
+       "<spot.twa_graph; proxy of <Swig Object of type 'std::shared_ptr< spot::twa_graph > *' at 0x7f2950267b40> >"
       ]
      },
      "execution_count": 28,
@@ -3677,10 +3838,10 @@
     {
      "data": {
       "image/svg+xml": [
-       "<svg height=\"376pt\" viewBox=\"0.00 0.00 727.00 376.00\" width=\"727pt\" xmlns=\"http://www.w3.org/2000/svg\" xmlns:xlink=\"http://www.w3.org/1999/xlink\">\n",
+       "<svg height=\"376pt\" viewBox=\"0.00 0.00 822.00 376.00\" width=\"822pt\" xmlns=\"http://www.w3.org/2000/svg\" xmlns:xlink=\"http://www.w3.org/1999/xlink\">\n",
        "<g class=\"graph\" id=\"graph0\" transform=\"scale(1 1) rotate(0) translate(4 372)\">\n",
        "<title>g</title>\n",
-       "<polygon fill=\"#ffffff\" points=\"-4,4 -4,-372 723,-372 723,4 -4,4\" stroke=\"transparent\"/>\n",
+       "<polygon fill=\"#ffffff\" points=\"-4,4 -4,-372 818,-372 818,4 -4,4\" stroke=\"transparent\"/>\n",
        "<!-- states -->\n",
        "<g class=\"node\" id=\"node1\">\n",
        "<title>states</title>\n",
@@ -3706,204 +3867,236 @@
        "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"91.5\" y=\"-296.8\">1</text>\n",
        "<polygon fill=\"#00ffff\" points=\"101.5,-290 101.5,-311 114.5,-311 114.5,-290 101.5,-290\" stroke=\"transparent\"/>\n",
        "<polygon fill=\"none\" points=\"101.5,-290 101.5,-311 114.5,-311 114.5,-290 101.5,-290\" stroke=\"#000000\"/>\n",
-       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"104.5\" y=\"-296.8\">2</text>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"104.5\" y=\"-296.8\">3</text>\n",
        "<polygon fill=\"#00ffff\" points=\"114.5,-290 114.5,-311 127.5,-311 127.5,-290 114.5,-290\" stroke=\"transparent\"/>\n",
        "<polygon fill=\"none\" points=\"114.5,-290 114.5,-311 127.5,-311 127.5,-290 114.5,-290\" stroke=\"#000000\"/>\n",
-       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"117.5\" y=\"-296.8\">5</text>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"117.5\" y=\"-296.8\">7</text>\n",
        "<polygon fill=\"#00ffff\" points=\"127.5,-290 127.5,-311 140.5,-311 140.5,-290 127.5,-290\" stroke=\"transparent\"/>\n",
        "<polygon fill=\"none\" points=\"127.5,-290 127.5,-311 140.5,-311 140.5,-290 127.5,-290\" stroke=\"#000000\"/>\n",
-       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"130.5\" y=\"-296.8\">7</text>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"130.5\" y=\"-296.8\">9</text>\n",
        "<polygon fill=\"none\" points=\"33.5,-269 33.5,-290 88.5,-290 88.5,-269 33.5,-269\" stroke=\"#000000\"/>\n",
        "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"36.5\" y=\"-275.8\">succ_tail</text>\n",
        "<polygon fill=\"#00ffff\" points=\"88.5,-269 88.5,-290 101.5,-290 101.5,-269 88.5,-269\" stroke=\"transparent\"/>\n",
        "<polygon fill=\"none\" points=\"88.5,-269 88.5,-290 101.5,-290 101.5,-269 88.5,-269\" stroke=\"#000000\"/>\n",
-       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"91.5\" y=\"-275.8\">6</text>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"91.5\" y=\"-275.8\">8</text>\n",
        "<polygon fill=\"#00ffff\" points=\"101.5,-269 101.5,-290 114.5,-290 114.5,-269 101.5,-269\" stroke=\"transparent\"/>\n",
        "<polygon fill=\"none\" points=\"101.5,-269 101.5,-290 114.5,-290 114.5,-269 101.5,-269\" stroke=\"#000000\"/>\n",
-       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"104.5\" y=\"-275.8\">4</text>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"104.5\" y=\"-275.8\">6</text>\n",
        "<polygon fill=\"#00ffff\" points=\"114.5,-269 114.5,-290 127.5,-290 127.5,-269 114.5,-269\" stroke=\"transparent\"/>\n",
        "<polygon fill=\"none\" points=\"114.5,-269 114.5,-290 127.5,-290 127.5,-269 114.5,-269\" stroke=\"#000000\"/>\n",
-       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"117.5\" y=\"-275.8\">5</text>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"117.5\" y=\"-275.8\">7</text>\n",
        "<polygon fill=\"#00ffff\" points=\"127.5,-269 127.5,-290 140.5,-290 140.5,-269 127.5,-269\" stroke=\"transparent\"/>\n",
        "<polygon fill=\"none\" points=\"127.5,-269 127.5,-290 140.5,-290 140.5,-269 127.5,-269\" stroke=\"#000000\"/>\n",
-       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"130.5\" y=\"-275.8\">7</text>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"130.5\" y=\"-275.8\">9</text>\n",
        "</g>\n",
        "<!-- edges -->\n",
        "<g class=\"node\" id=\"node2\">\n",
        "<title>edges</title>\n",
-       "<polygon fill=\"#00ffff\" points=\"173.5,-343 173.5,-364 234.5,-364 234.5,-343 173.5,-343\" stroke=\"transparent\"/>\n",
-       "<polyline fill=\"none\" points=\"173.5,-343 234.5,-343 \" stroke=\"#000000\"/>\n",
-       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"188.5\" y=\"-349.8\">edges</text>\n",
-       "<polygon fill=\"#00ffff\" points=\"234.5,-343 234.5,-364 281.5,-364 281.5,-343 234.5,-343\" stroke=\"transparent\"/>\n",
-       "<polyline fill=\"none\" points=\"234.5,-343 281.5,-343 \" stroke=\"#000000\"/>\n",
-       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"254.5\" y=\"-349.8\">1</text>\n",
-       "<polygon fill=\"#00ffff\" points=\"281.5,-343 281.5,-364 319.5,-364 319.5,-343 281.5,-343\" stroke=\"transparent\"/>\n",
-       "<polyline fill=\"none\" points=\"281.5,-343 319.5,-343 \" stroke=\"#000000\"/>\n",
-       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"297\" y=\"-349.8\">2</text>\n",
-       "<polygon fill=\"#00ffff\" points=\"319.5,-343 319.5,-364 362.5,-364 362.5,-343 319.5,-343\" stroke=\"transparent\"/>\n",
-       "<polyline fill=\"none\" points=\"319.5,-343 362.5,-343 \" stroke=\"#000000\"/>\n",
-       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"337.5\" y=\"-349.8\">3</text>\n",
-       "<polygon fill=\"#00ffff\" points=\"362.5,-343 362.5,-364 399.5,-364 399.5,-343 362.5,-343\" stroke=\"transparent\"/>\n",
-       "<polyline fill=\"none\" points=\"362.5,-343 399.5,-343 \" stroke=\"#000000\"/>\n",
-       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"377.5\" y=\"-349.8\">4</text>\n",
-       "<polygon fill=\"#00ffff\" points=\"399.5,-343 399.5,-364 419.5,-364 419.5,-343 399.5,-343\" stroke=\"transparent\"/>\n",
-       "<polyline fill=\"none\" points=\"399.5,-343 419.5,-343 \" stroke=\"#000000\"/>\n",
-       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"406\" y=\"-349.8\">5</text>\n",
-       "<polygon fill=\"#00ffff\" points=\"419.5,-343 419.5,-364 446.5,-364 446.5,-343 419.5,-343\" stroke=\"transparent\"/>\n",
-       "<polyline fill=\"none\" points=\"419.5,-343 446.5,-343 \" stroke=\"#000000\"/>\n",
-       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"429.5\" y=\"-349.8\">6</text>\n",
-       "<polygon fill=\"#00ffff\" points=\"446.5,-343 446.5,-364 473.5,-364 473.5,-343 446.5,-343\" stroke=\"transparent\"/>\n",
-       "<polyline fill=\"none\" points=\"446.5,-343 473.5,-343 \" stroke=\"#000000\"/>\n",
-       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"456.5\" y=\"-349.8\">7</text>\n",
-       "<polygon fill=\"none\" points=\"173.5,-322 173.5,-343 234.5,-343 234.5,-322 173.5,-322\" stroke=\"#000000\"/>\n",
-       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"190.5\" y=\"-328.8\">cond</text>\n",
-       "<polygon fill=\"none\" points=\"234.5,-322 234.5,-343 281.5,-343 281.5,-322 234.5,-322\" stroke=\"#000000\"/>\n",
-       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"237.5\" y=\"-328.8\">!a &amp; !b</text>\n",
-       "<polygon fill=\"none\" points=\"281.5,-322 281.5,-343 319.5,-343 319.5,-322 281.5,-322\" stroke=\"#000000\"/>\n",
-       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"284.5\" y=\"-328.8\">a &amp; b</text>\n",
-       "<polygon fill=\"none\" points=\"319.5,-322 319.5,-343 362.5,-343 362.5,-322 319.5,-322\" stroke=\"#000000\"/>\n",
-       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"322.5\" y=\"-328.8\">!a &amp; b</text>\n",
-       "<polygon fill=\"none\" points=\"362.5,-322 362.5,-343 399.5,-343 399.5,-322 362.5,-322\" stroke=\"#000000\"/>\n",
-       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"377.5\" y=\"-328.8\">1</text>\n",
-       "<polygon fill=\"none\" points=\"399.5,-322 399.5,-343 419.5,-343 419.5,-322 399.5,-322\" stroke=\"#000000\"/>\n",
-       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"406\" y=\"-328.8\">1</text>\n",
-       "<polygon fill=\"none\" points=\"419.5,-322 419.5,-343 446.5,-343 446.5,-322 419.5,-322\" stroke=\"#000000\"/>\n",
-       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"429.5\" y=\"-328.8\">a</text>\n",
-       "<polygon fill=\"none\" points=\"446.5,-322 446.5,-343 473.5,-343 473.5,-322 446.5,-322\" stroke=\"#000000\"/>\n",
-       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"454.5\" y=\"-328.8\">!a</text>\n",
-       "<polygon fill=\"none\" points=\"173.5,-301 173.5,-322 234.5,-322 234.5,-301 173.5,-301\" stroke=\"#000000\"/>\n",
-       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"194.5\" y=\"-307.8\">acc</text>\n",
-       "<polygon fill=\"none\" points=\"234.5,-301 234.5,-322 281.5,-322 281.5,-301 234.5,-301\" stroke=\"#000000\"/>\n",
-       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"247.5\" y=\"-307.8\">{0}</text>\n",
-       "<polygon fill=\"none\" points=\"281.5,-301 281.5,-322 319.5,-322 319.5,-301 281.5,-301\" stroke=\"#000000\"/>\n",
-       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"293.5\" y=\"-307.8\">{}</text>\n",
-       "<polygon fill=\"none\" points=\"319.5,-301 319.5,-322 362.5,-322 362.5,-301 319.5,-301\" stroke=\"#000000\"/>\n",
-       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"330.5\" y=\"-307.8\">{1}</text>\n",
-       "<polygon fill=\"none\" points=\"362.5,-301 362.5,-322 399.5,-322 399.5,-301 362.5,-301\" stroke=\"#000000\"/>\n",
-       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"365.5\" y=\"-307.8\">{0,1}</text>\n",
-       "<polygon fill=\"none\" points=\"399.5,-301 399.5,-322 419.5,-322 419.5,-301 399.5,-301\" stroke=\"#000000\"/>\n",
-       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"402.5\" y=\"-307.8\">{}</text>\n",
-       "<polygon fill=\"none\" points=\"419.5,-301 419.5,-322 446.5,-322 446.5,-301 419.5,-301\" stroke=\"#000000\"/>\n",
-       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"422.5\" y=\"-307.8\">{1}</text>\n",
-       "<polygon fill=\"none\" points=\"446.5,-301 446.5,-322 473.5,-322 473.5,-301 446.5,-301\" stroke=\"#000000\"/>\n",
-       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"449.5\" y=\"-307.8\">{0}</text>\n",
-       "<polygon fill=\"none\" points=\"173.5,-280 173.5,-301 234.5,-301 234.5,-280 173.5,-280\" stroke=\"#000000\"/>\n",
-       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"196\" y=\"-286.8\">dst</text>\n",
-       "<polygon fill=\"#ffff00\" points=\"234.5,-280 234.5,-301 281.5,-301 281.5,-280 234.5,-280\" stroke=\"transparent\"/>\n",
-       "<polygon fill=\"none\" points=\"234.5,-280 234.5,-301 281.5,-301 281.5,-280 234.5,-280\" stroke=\"#000000\"/>\n",
-       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"254.5\" y=\"-286.8\">1</text>\n",
-       "<polygon fill=\"#ffff00\" points=\"281.5,-280 281.5,-301 319.5,-301 319.5,-280 281.5,-280\" stroke=\"transparent\"/>\n",
-       "<polygon fill=\"none\" points=\"281.5,-280 281.5,-301 319.5,-301 319.5,-280 281.5,-280\" stroke=\"#000000\"/>\n",
-       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"297\" y=\"-286.8\">0</text>\n",
-       "<polygon fill=\"#ffff00\" points=\"319.5,-280 319.5,-301 362.5,-301 362.5,-280 319.5,-280\" stroke=\"transparent\"/>\n",
-       "<polygon fill=\"none\" points=\"319.5,-280 319.5,-301 362.5,-301 362.5,-280 319.5,-280\" stroke=\"#000000\"/>\n",
-       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"337.5\" y=\"-286.8\">1</text>\n",
-       "<polygon fill=\"#ffff00\" points=\"362.5,-280 362.5,-301 399.5,-301 399.5,-280 362.5,-280\" stroke=\"transparent\"/>\n",
-       "<polygon fill=\"none\" points=\"362.5,-280 362.5,-301 399.5,-301 399.5,-280 362.5,-280\" stroke=\"#000000\"/>\n",
-       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"377.5\" y=\"-286.8\">1</text>\n",
-       "<polygon fill=\"#ffff00\" points=\"399.5,-280 399.5,-301 419.5,-301 419.5,-280 399.5,-280\" stroke=\"transparent\"/>\n",
-       "<polygon fill=\"none\" points=\"399.5,-280 399.5,-301 419.5,-301 419.5,-280 399.5,-280\" stroke=\"#000000\"/>\n",
-       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"406\" y=\"-286.8\">0</text>\n",
-       "<polygon fill=\"#ffc0cb\" points=\"419.5,-280 419.5,-301 446.5,-301 446.5,-280 419.5,-280\" stroke=\"transparent\"/>\n",
-       "<polygon fill=\"none\" points=\"419.5,-280 419.5,-301 446.5,-301 446.5,-280 419.5,-280\" stroke=\"#000000\"/>\n",
-       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"425.5\" y=\"-286.8\">~0</text>\n",
-       "<polygon fill=\"#ffc0cb\" points=\"446.5,-280 446.5,-301 473.5,-301 473.5,-280 446.5,-280\" stroke=\"transparent\"/>\n",
-       "<polygon fill=\"none\" points=\"446.5,-280 446.5,-301 473.5,-301 473.5,-280 446.5,-280\" stroke=\"#000000\"/>\n",
-       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"452.5\" y=\"-286.8\">~3</text>\n",
-       "<polygon fill=\"none\" points=\"173.5,-259 173.5,-280 234.5,-280 234.5,-259 173.5,-259\" stroke=\"#000000\"/>\n",
-       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"176.5\" y=\"-265.8\">next_succ</text>\n",
-       "<polygon fill=\"#00ffff\" points=\"234.5,-259 234.5,-280 281.5,-280 281.5,-259 234.5,-259\" stroke=\"transparent\"/>\n",
-       "<polygon fill=\"none\" points=\"234.5,-259 234.5,-280 281.5,-280 281.5,-259 234.5,-259\" stroke=\"#000000\"/>\n",
-       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"254.5\" y=\"-265.8\">6</text>\n",
-       "<polygon fill=\"#00ffff\" points=\"281.5,-259 281.5,-280 319.5,-280 319.5,-259 281.5,-259\" stroke=\"transparent\"/>\n",
-       "<polygon fill=\"none\" points=\"281.5,-259 281.5,-280 319.5,-280 319.5,-259 281.5,-259\" stroke=\"#000000\"/>\n",
-       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"297\" y=\"-265.8\">3</text>\n",
-       "<polygon fill=\"#00ffff\" points=\"319.5,-259 319.5,-280 362.5,-280 362.5,-259 319.5,-259\" stroke=\"transparent\"/>\n",
-       "<polygon fill=\"none\" points=\"319.5,-259 319.5,-280 362.5,-280 362.5,-259 319.5,-259\" stroke=\"#000000\"/>\n",
-       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"337.5\" y=\"-265.8\">4</text>\n",
-       "<polygon fill=\"none\" points=\"362.5,-259 362.5,-280 399.5,-280 399.5,-259 362.5,-259\" stroke=\"#000000\"/>\n",
-       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"377.5\" y=\"-265.8\">0</text>\n",
-       "<polygon fill=\"none\" points=\"399.5,-259 399.5,-280 419.5,-280 419.5,-259 399.5,-259\" stroke=\"#000000\"/>\n",
-       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"406\" y=\"-265.8\">0</text>\n",
-       "<polygon fill=\"none\" points=\"419.5,-259 419.5,-280 446.5,-280 446.5,-259 419.5,-259\" stroke=\"#000000\"/>\n",
-       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"429.5\" y=\"-265.8\">0</text>\n",
-       "<polygon fill=\"none\" points=\"446.5,-259 446.5,-280 473.5,-280 473.5,-259 446.5,-259\" stroke=\"#000000\"/>\n",
-       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"456.5\" y=\"-265.8\">0</text>\n",
-       "<polygon fill=\"none\" points=\"173.5,-238 173.5,-259 234.5,-259 234.5,-238 173.5,-238\" stroke=\"#000000\"/>\n",
-       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"196\" y=\"-244.8\">src</text>\n",
-       "<polygon fill=\"#ffff00\" points=\"234.5,-238 234.5,-259 281.5,-259 281.5,-238 234.5,-238\" stroke=\"transparent\"/>\n",
-       "<polygon fill=\"none\" points=\"234.5,-238 234.5,-259 281.5,-259 281.5,-238 234.5,-238\" stroke=\"#000000\"/>\n",
-       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"254.5\" y=\"-244.8\">0</text>\n",
-       "<polygon fill=\"#ffff00\" points=\"281.5,-238 281.5,-259 319.5,-259 319.5,-238 281.5,-238\" stroke=\"transparent\"/>\n",
-       "<polygon fill=\"none\" points=\"281.5,-238 281.5,-259 319.5,-259 319.5,-238 281.5,-238\" stroke=\"#000000\"/>\n",
-       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"297\" y=\"-244.8\">1</text>\n",
-       "<polygon fill=\"#ffff00\" points=\"319.5,-238 319.5,-259 362.5,-259 362.5,-238 319.5,-238\" stroke=\"transparent\"/>\n",
-       "<polygon fill=\"none\" points=\"319.5,-238 319.5,-259 362.5,-259 362.5,-238 319.5,-238\" stroke=\"#000000\"/>\n",
-       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"337.5\" y=\"-244.8\">1</text>\n",
-       "<polygon fill=\"#ffff00\" points=\"362.5,-238 362.5,-259 399.5,-259 399.5,-238 362.5,-238\" stroke=\"transparent\"/>\n",
-       "<polygon fill=\"none\" points=\"362.5,-238 362.5,-259 399.5,-259 399.5,-238 362.5,-238\" stroke=\"#000000\"/>\n",
-       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"377.5\" y=\"-244.8\">1</text>\n",
-       "<polygon fill=\"#ffff00\" points=\"399.5,-238 399.5,-259 419.5,-259 419.5,-238 399.5,-238\" stroke=\"transparent\"/>\n",
-       "<polygon fill=\"none\" points=\"399.5,-238 399.5,-259 419.5,-259 419.5,-238 399.5,-238\" stroke=\"#000000\"/>\n",
-       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"406\" y=\"-244.8\">2</text>\n",
-       "<polygon fill=\"#ffff00\" points=\"419.5,-238 419.5,-259 446.5,-259 446.5,-238 419.5,-238\" stroke=\"transparent\"/>\n",
-       "<polygon fill=\"none\" points=\"419.5,-238 419.5,-259 446.5,-259 446.5,-238 419.5,-238\" stroke=\"#000000\"/>\n",
-       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"429.5\" y=\"-244.8\">0</text>\n",
-       "<polygon fill=\"#ffff00\" points=\"446.5,-238 446.5,-259 473.5,-259 473.5,-238 446.5,-238\" stroke=\"transparent\"/>\n",
-       "<polygon fill=\"none\" points=\"446.5,-238 446.5,-259 473.5,-259 473.5,-238 446.5,-238\" stroke=\"#000000\"/>\n",
-       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"456.5\" y=\"-244.8\">3</text>\n",
+       "<polygon fill=\"#00ffff\" points=\"174.5,-343 174.5,-364 235.5,-364 235.5,-343 174.5,-343\" stroke=\"transparent\"/>\n",
+       "<polyline fill=\"none\" points=\"174.5,-343 235.5,-343 \" stroke=\"#000000\"/>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"189.5\" y=\"-349.8\">edges</text>\n",
+       "<polygon fill=\"#00ffff\" points=\"235.5,-343 235.5,-364 278.5,-364 278.5,-343 235.5,-343\" stroke=\"transparent\"/>\n",
+       "<polyline fill=\"none\" points=\"235.5,-343 278.5,-343 \" stroke=\"#000000\"/>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"253.5\" y=\"-349.8\">1</text>\n",
+       "<polygon fill=\"#00ffff\" points=\"278.5,-343 278.5,-364 325.5,-364 325.5,-343 278.5,-343\" stroke=\"transparent\"/>\n",
+       "<polyline fill=\"none\" points=\"278.5,-343 325.5,-343 \" stroke=\"#000000\"/>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"298.5\" y=\"-349.8\">2</text>\n",
+       "<polygon fill=\"#00ffff\" points=\"325.5,-343 325.5,-364 368.5,-364 368.5,-343 325.5,-343\" stroke=\"transparent\"/>\n",
+       "<polyline fill=\"none\" points=\"325.5,-343 368.5,-343 \" stroke=\"#000000\"/>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"343.5\" y=\"-349.8\">3</text>\n",
+       "<polygon fill=\"#00ffff\" points=\"368.5,-343 368.5,-364 415.5,-364 415.5,-343 368.5,-343\" stroke=\"transparent\"/>\n",
+       "<polyline fill=\"none\" points=\"368.5,-343 415.5,-343 \" stroke=\"#000000\"/>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"388.5\" y=\"-349.8\">4</text>\n",
+       "<polygon fill=\"#00ffff\" points=\"415.5,-343 415.5,-364 458.5,-364 458.5,-343 415.5,-343\" stroke=\"transparent\"/>\n",
+       "<polyline fill=\"none\" points=\"415.5,-343 458.5,-343 \" stroke=\"#000000\"/>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"433.5\" y=\"-349.8\">5</text>\n",
+       "<polygon fill=\"#00ffff\" points=\"458.5,-343 458.5,-364 495.5,-364 495.5,-343 458.5,-343\" stroke=\"transparent\"/>\n",
+       "<polyline fill=\"none\" points=\"458.5,-343 495.5,-343 \" stroke=\"#000000\"/>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"473.5\" y=\"-349.8\">6</text>\n",
+       "<polygon fill=\"#00ffff\" points=\"495.5,-343 495.5,-364 515.5,-364 515.5,-343 495.5,-343\" stroke=\"transparent\"/>\n",
+       "<polyline fill=\"none\" points=\"495.5,-343 515.5,-343 \" stroke=\"#000000\"/>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"502\" y=\"-349.8\">7</text>\n",
+       "<polygon fill=\"#00ffff\" points=\"515.5,-343 515.5,-364 542.5,-364 542.5,-343 515.5,-343\" stroke=\"transparent\"/>\n",
+       "<polyline fill=\"none\" points=\"515.5,-343 542.5,-343 \" stroke=\"#000000\"/>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"525.5\" y=\"-349.8\">8</text>\n",
+       "<polygon fill=\"#00ffff\" points=\"542.5,-343 542.5,-364 569.5,-364 569.5,-343 542.5,-343\" stroke=\"transparent\"/>\n",
+       "<polyline fill=\"none\" points=\"542.5,-343 569.5,-343 \" stroke=\"#000000\"/>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"552.5\" y=\"-349.8\">9</text>\n",
+       "<polygon fill=\"none\" points=\"174.5,-322 174.5,-343 235.5,-343 235.5,-322 174.5,-322\" stroke=\"#000000\"/>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"191.5\" y=\"-328.8\">cond</text>\n",
+       "<polygon fill=\"none\" points=\"235.5,-322 235.5,-343 278.5,-343 278.5,-322 235.5,-322\" stroke=\"#000000\"/>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"238.5\" y=\"-328.8\">a &amp; !b</text>\n",
+       "<polygon fill=\"none\" points=\"278.5,-322 278.5,-343 325.5,-343 325.5,-322 278.5,-322\" stroke=\"#000000\"/>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"281.5\" y=\"-328.8\">!a &amp; !b</text>\n",
+       "<polygon fill=\"none\" points=\"325.5,-322 325.5,-343 368.5,-343 368.5,-322 325.5,-322\" stroke=\"#000000\"/>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"328.5\" y=\"-328.8\">a &amp; !b</text>\n",
+       "<polygon fill=\"none\" points=\"368.5,-322 368.5,-343 415.5,-343 415.5,-322 368.5,-322\" stroke=\"#000000\"/>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"371.5\" y=\"-328.8\">!a &amp; !b</text>\n",
+       "<polygon fill=\"none\" points=\"415.5,-322 415.5,-343 458.5,-343 458.5,-322 415.5,-322\" stroke=\"#000000\"/>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"418.5\" y=\"-328.8\">!a &amp; b</text>\n",
+       "<polygon fill=\"none\" points=\"458.5,-322 458.5,-343 495.5,-343 495.5,-322 458.5,-322\" stroke=\"#000000\"/>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"473.5\" y=\"-328.8\">1</text>\n",
+       "<polygon fill=\"none\" points=\"495.5,-322 495.5,-343 515.5,-343 515.5,-322 495.5,-322\" stroke=\"#000000\"/>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"502\" y=\"-328.8\">1</text>\n",
+       "<polygon fill=\"none\" points=\"515.5,-322 515.5,-343 542.5,-343 542.5,-322 515.5,-322\" stroke=\"#000000\"/>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"525.5\" y=\"-328.8\">a</text>\n",
+       "<polygon fill=\"none\" points=\"542.5,-322 542.5,-343 569.5,-343 569.5,-322 542.5,-322\" stroke=\"#000000\"/>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"550.5\" y=\"-328.8\">!a</text>\n",
+       "<polygon fill=\"none\" points=\"174.5,-301 174.5,-322 235.5,-322 235.5,-301 174.5,-301\" stroke=\"#000000\"/>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"195.5\" y=\"-307.8\">acc</text>\n",
+       "<polygon fill=\"none\" points=\"235.5,-301 235.5,-322 278.5,-322 278.5,-301 235.5,-301\" stroke=\"#000000\"/>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"246.5\" y=\"-307.8\">{0}</text>\n",
+       "<polygon fill=\"none\" points=\"278.5,-301 278.5,-322 325.5,-322 325.5,-301 278.5,-301\" stroke=\"#000000\"/>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"291.5\" y=\"-307.8\">{0}</text>\n",
+       "<polygon fill=\"none\" points=\"325.5,-301 325.5,-322 368.5,-322 368.5,-301 325.5,-301\" stroke=\"#000000\"/>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"336.5\" y=\"-307.8\">{0}</text>\n",
+       "<polygon fill=\"none\" points=\"368.5,-301 368.5,-322 415.5,-322 415.5,-301 368.5,-301\" stroke=\"#000000\"/>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"381.5\" y=\"-307.8\">{0}</text>\n",
+       "<polygon fill=\"none\" points=\"415.5,-301 415.5,-322 458.5,-322 458.5,-301 415.5,-301\" stroke=\"#000000\"/>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"426.5\" y=\"-307.8\">{1}</text>\n",
+       "<polygon fill=\"none\" points=\"458.5,-301 458.5,-322 495.5,-322 495.5,-301 458.5,-301\" stroke=\"#000000\"/>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"461.5\" y=\"-307.8\">{0,1}</text>\n",
+       "<polygon fill=\"none\" points=\"495.5,-301 495.5,-322 515.5,-322 515.5,-301 495.5,-301\" stroke=\"#000000\"/>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"498.5\" y=\"-307.8\">{}</text>\n",
+       "<polygon fill=\"none\" points=\"515.5,-301 515.5,-322 542.5,-322 542.5,-301 515.5,-301\" stroke=\"#000000\"/>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"518.5\" y=\"-307.8\">{1}</text>\n",
+       "<polygon fill=\"none\" points=\"542.5,-301 542.5,-322 569.5,-322 569.5,-301 542.5,-301\" stroke=\"#000000\"/>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"545.5\" y=\"-307.8\">{0}</text>\n",
+       "<polygon fill=\"none\" points=\"174.5,-280 174.5,-301 235.5,-301 235.5,-280 174.5,-280\" stroke=\"#000000\"/>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"197\" y=\"-286.8\">dst</text>\n",
+       "<polygon fill=\"#ffff00\" points=\"235.5,-280 235.5,-301 278.5,-301 278.5,-280 235.5,-280\" stroke=\"transparent\"/>\n",
+       "<polygon fill=\"none\" points=\"235.5,-280 235.5,-301 278.5,-301 278.5,-280 235.5,-280\" stroke=\"#000000\"/>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"253.5\" y=\"-286.8\">0</text>\n",
+       "<polygon fill=\"#ffff00\" points=\"278.5,-280 278.5,-301 325.5,-301 325.5,-280 278.5,-280\" stroke=\"transparent\"/>\n",
+       "<polygon fill=\"none\" points=\"278.5,-280 278.5,-301 325.5,-301 325.5,-280 278.5,-280\" stroke=\"#000000\"/>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"298.5\" y=\"-286.8\">1</text>\n",
+       "<polygon fill=\"#ffff00\" points=\"325.5,-280 325.5,-301 368.5,-301 368.5,-280 325.5,-280\" stroke=\"transparent\"/>\n",
+       "<polygon fill=\"none\" points=\"325.5,-280 325.5,-301 368.5,-301 368.5,-280 325.5,-280\" stroke=\"#000000\"/>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"343.5\" y=\"-286.8\">0</text>\n",
+       "<polygon fill=\"#ffff00\" points=\"368.5,-280 368.5,-301 415.5,-301 415.5,-280 368.5,-280\" stroke=\"transparent\"/>\n",
+       "<polygon fill=\"none\" points=\"368.5,-280 368.5,-301 415.5,-301 415.5,-280 368.5,-280\" stroke=\"#000000\"/>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"388.5\" y=\"-286.8\">1</text>\n",
+       "<polygon fill=\"#ffff00\" points=\"415.5,-280 415.5,-301 458.5,-301 458.5,-280 415.5,-280\" stroke=\"transparent\"/>\n",
+       "<polygon fill=\"none\" points=\"415.5,-280 415.5,-301 458.5,-301 458.5,-280 415.5,-280\" stroke=\"#000000\"/>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"433.5\" y=\"-286.8\">1</text>\n",
+       "<polygon fill=\"#ffff00\" points=\"458.5,-280 458.5,-301 495.5,-301 495.5,-280 458.5,-280\" stroke=\"transparent\"/>\n",
+       "<polygon fill=\"none\" points=\"458.5,-280 458.5,-301 495.5,-301 495.5,-280 458.5,-280\" stroke=\"#000000\"/>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"473.5\" y=\"-286.8\">1</text>\n",
+       "<polygon fill=\"#ffff00\" points=\"495.5,-280 495.5,-301 515.5,-301 515.5,-280 495.5,-280\" stroke=\"transparent\"/>\n",
+       "<polygon fill=\"none\" points=\"495.5,-280 495.5,-301 515.5,-301 515.5,-280 495.5,-280\" stroke=\"#000000\"/>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"502\" y=\"-286.8\">0</text>\n",
+       "<polygon fill=\"#ffc0cb\" points=\"515.5,-280 515.5,-301 542.5,-301 542.5,-280 515.5,-280\" stroke=\"transparent\"/>\n",
+       "<polygon fill=\"none\" points=\"515.5,-280 515.5,-301 542.5,-301 542.5,-280 515.5,-280\" stroke=\"#000000\"/>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"521.5\" y=\"-286.8\">~0</text>\n",
+       "<polygon fill=\"#ffc0cb\" points=\"542.5,-280 542.5,-301 569.5,-301 569.5,-280 542.5,-280\" stroke=\"transparent\"/>\n",
+       "<polygon fill=\"none\" points=\"542.5,-280 542.5,-301 569.5,-301 569.5,-280 542.5,-280\" stroke=\"#000000\"/>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"548.5\" y=\"-286.8\">~3</text>\n",
+       "<polygon fill=\"none\" points=\"174.5,-259 174.5,-280 235.5,-280 235.5,-259 174.5,-259\" stroke=\"#000000\"/>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"177.5\" y=\"-265.8\">next_succ</text>\n",
+       "<polygon fill=\"#00ffff\" points=\"235.5,-259 235.5,-280 278.5,-280 278.5,-259 235.5,-259\" stroke=\"transparent\"/>\n",
+       "<polygon fill=\"none\" points=\"235.5,-259 235.5,-280 278.5,-280 278.5,-259 235.5,-259\" stroke=\"#000000\"/>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"253.5\" y=\"-265.8\">2</text>\n",
+       "<polygon fill=\"#00ffff\" points=\"278.5,-259 278.5,-280 325.5,-280 325.5,-259 278.5,-259\" stroke=\"transparent\"/>\n",
+       "<polygon fill=\"none\" points=\"278.5,-259 278.5,-280 325.5,-280 325.5,-259 278.5,-259\" stroke=\"#000000\"/>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"298.5\" y=\"-265.8\">8</text>\n",
+       "<polygon fill=\"#00ffff\" points=\"325.5,-259 325.5,-280 368.5,-280 368.5,-259 325.5,-259\" stroke=\"transparent\"/>\n",
+       "<polygon fill=\"none\" points=\"325.5,-259 325.5,-280 368.5,-280 368.5,-259 325.5,-259\" stroke=\"#000000\"/>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"343.5\" y=\"-265.8\">4</text>\n",
+       "<polygon fill=\"#00ffff\" points=\"368.5,-259 368.5,-280 415.5,-280 415.5,-259 368.5,-259\" stroke=\"transparent\"/>\n",
+       "<polygon fill=\"none\" points=\"368.5,-259 368.5,-280 415.5,-280 415.5,-259 368.5,-259\" stroke=\"#000000\"/>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"388.5\" y=\"-265.8\">5</text>\n",
+       "<polygon fill=\"#00ffff\" points=\"415.5,-259 415.5,-280 458.5,-280 458.5,-259 415.5,-259\" stroke=\"transparent\"/>\n",
+       "<polygon fill=\"none\" points=\"415.5,-259 415.5,-280 458.5,-280 458.5,-259 415.5,-259\" stroke=\"#000000\"/>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"433.5\" y=\"-265.8\">6</text>\n",
+       "<polygon fill=\"none\" points=\"458.5,-259 458.5,-280 495.5,-280 495.5,-259 458.5,-259\" stroke=\"#000000\"/>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"473.5\" y=\"-265.8\">0</text>\n",
+       "<polygon fill=\"none\" points=\"495.5,-259 495.5,-280 515.5,-280 515.5,-259 495.5,-259\" stroke=\"#000000\"/>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"502\" y=\"-265.8\">0</text>\n",
+       "<polygon fill=\"none\" points=\"515.5,-259 515.5,-280 542.5,-280 542.5,-259 515.5,-259\" stroke=\"#000000\"/>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"525.5\" y=\"-265.8\">0</text>\n",
+       "<polygon fill=\"none\" points=\"542.5,-259 542.5,-280 569.5,-280 569.5,-259 542.5,-259\" stroke=\"#000000\"/>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"552.5\" y=\"-265.8\">0</text>\n",
+       "<polygon fill=\"none\" points=\"174.5,-238 174.5,-259 235.5,-259 235.5,-238 174.5,-238\" stroke=\"#000000\"/>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"197\" y=\"-244.8\">src</text>\n",
+       "<polygon fill=\"#ffff00\" points=\"235.5,-238 235.5,-259 278.5,-259 278.5,-238 235.5,-238\" stroke=\"transparent\"/>\n",
+       "<polygon fill=\"none\" points=\"235.5,-238 235.5,-259 278.5,-259 278.5,-238 235.5,-238\" stroke=\"#000000\"/>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"253.5\" y=\"-244.8\">0</text>\n",
+       "<polygon fill=\"#ffff00\" points=\"278.5,-238 278.5,-259 325.5,-259 325.5,-238 278.5,-238\" stroke=\"transparent\"/>\n",
+       "<polygon fill=\"none\" points=\"278.5,-238 278.5,-259 325.5,-259 325.5,-238 278.5,-238\" stroke=\"#000000\"/>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"298.5\" y=\"-244.8\">0</text>\n",
+       "<polygon fill=\"#ffff00\" points=\"325.5,-238 325.5,-259 368.5,-259 368.5,-238 325.5,-238\" stroke=\"transparent\"/>\n",
+       "<polygon fill=\"none\" points=\"325.5,-238 325.5,-259 368.5,-259 368.5,-238 325.5,-238\" stroke=\"#000000\"/>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"343.5\" y=\"-244.8\">1</text>\n",
+       "<polygon fill=\"#ffff00\" points=\"368.5,-238 368.5,-259 415.5,-259 415.5,-238 368.5,-238\" stroke=\"transparent\"/>\n",
+       "<polygon fill=\"none\" points=\"368.5,-238 368.5,-259 415.5,-259 415.5,-238 368.5,-238\" stroke=\"#000000\"/>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"388.5\" y=\"-244.8\">1</text>\n",
+       "<polygon fill=\"#ffff00\" points=\"415.5,-238 415.5,-259 458.5,-259 458.5,-238 415.5,-238\" stroke=\"transparent\"/>\n",
+       "<polygon fill=\"none\" points=\"415.5,-238 415.5,-259 458.5,-259 458.5,-238 415.5,-238\" stroke=\"#000000\"/>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"433.5\" y=\"-244.8\">1</text>\n",
+       "<polygon fill=\"#ffff00\" points=\"458.5,-238 458.5,-259 495.5,-259 495.5,-238 458.5,-238\" stroke=\"transparent\"/>\n",
+       "<polygon fill=\"none\" points=\"458.5,-238 458.5,-259 495.5,-259 495.5,-238 458.5,-238\" stroke=\"#000000\"/>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"473.5\" y=\"-244.8\">1</text>\n",
+       "<polygon fill=\"#ffff00\" points=\"495.5,-238 495.5,-259 515.5,-259 515.5,-238 495.5,-238\" stroke=\"transparent\"/>\n",
+       "<polygon fill=\"none\" points=\"495.5,-238 495.5,-259 515.5,-259 515.5,-238 495.5,-238\" stroke=\"#000000\"/>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"502\" y=\"-244.8\">2</text>\n",
+       "<polygon fill=\"#ffff00\" points=\"515.5,-238 515.5,-259 542.5,-259 542.5,-238 515.5,-238\" stroke=\"transparent\"/>\n",
+       "<polygon fill=\"none\" points=\"515.5,-238 515.5,-259 542.5,-259 542.5,-238 515.5,-238\" stroke=\"#000000\"/>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"525.5\" y=\"-244.8\">0</text>\n",
+       "<polygon fill=\"#ffff00\" points=\"542.5,-238 542.5,-259 569.5,-259 569.5,-238 542.5,-238\" stroke=\"transparent\"/>\n",
+       "<polygon fill=\"none\" points=\"542.5,-238 542.5,-259 569.5,-259 569.5,-238 542.5,-238\" stroke=\"#000000\"/>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"552.5\" y=\"-244.8\">3</text>\n",
        "</g>\n",
        "<!-- dests -->\n",
        "<g class=\"node\" id=\"node3\">\n",
        "<title>dests</title>\n",
-       "<polygon fill=\"#ffc0cb\" points=\"508.5,-301 508.5,-322 557.5,-322 557.5,-301 508.5,-301\" stroke=\"transparent\"/>\n",
-       "<polyline fill=\"none\" points=\"508.5,-301 557.5,-301 \" stroke=\"#000000\"/>\n",
-       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"519\" y=\"-307.8\">dests</text>\n",
-       "<polygon fill=\"#ffc0cb\" points=\"557.5,-301 557.5,-322 578.5,-322 578.5,-301 557.5,-301\" stroke=\"transparent\"/>\n",
-       "<polyline fill=\"none\" points=\"557.5,-301 578.5,-301 \" stroke=\"#000000\"/>\n",
-       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"560.5\" y=\"-307.8\">~0</text>\n",
-       "<polyline fill=\"none\" points=\"578.5,-301 591.5,-301 \" stroke=\"#000000\"/>\n",
-       "<polyline fill=\"none\" points=\"591.5,-301 604.5,-301 \" stroke=\"#000000\"/>\n",
-       "<polygon fill=\"#ffc0cb\" points=\"604.5,-301 604.5,-322 625.5,-322 625.5,-301 604.5,-301\" stroke=\"transparent\"/>\n",
-       "<polyline fill=\"none\" points=\"604.5,-301 625.5,-301 \" stroke=\"#000000\"/>\n",
-       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"607.5\" y=\"-307.8\">~3</text>\n",
-       "<polyline fill=\"none\" points=\"625.5,-301 638.5,-301 \" stroke=\"#000000\"/>\n",
-       "<polyline fill=\"none\" points=\"638.5,-301 651.5,-301 \" stroke=\"#000000\"/>\n",
-       "<polygon fill=\"#ffc0cb\" points=\"651.5,-301 651.5,-322 672.5,-322 672.5,-301 651.5,-301\" stroke=\"transparent\"/>\n",
-       "<polyline fill=\"none\" points=\"651.5,-301 672.5,-301 \" stroke=\"#000000\"/>\n",
-       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"654.5\" y=\"-307.8\">~6</text>\n",
-       "<polyline fill=\"none\" points=\"672.5,-301 685.5,-301 \" stroke=\"#000000\"/>\n",
-       "<polyline fill=\"none\" points=\"685.5,-301 698.5,-301 \" stroke=\"#000000\"/>\n",
-       "<polyline fill=\"none\" points=\"698.5,-301 711.5,-301 \" stroke=\"#000000\"/>\n",
-       "<polygon fill=\"none\" points=\"508.5,-280 508.5,-301 557.5,-301 557.5,-280 508.5,-280\" stroke=\"#000000\"/>\n",
-       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"511.5\" y=\"-286.8\">#cnt/dst</text>\n",
-       "<polygon fill=\"none\" points=\"557.5,-280 557.5,-301 578.5,-301 578.5,-280 557.5,-280\" stroke=\"#000000\"/>\n",
-       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"561\" y=\"-286.8\">#2</text>\n",
-       "<polygon fill=\"#ffff00\" points=\"578.5,-280 578.5,-301 591.5,-301 591.5,-280 578.5,-280\" stroke=\"transparent\"/>\n",
-       "<polygon fill=\"none\" points=\"578.5,-280 578.5,-301 591.5,-301 591.5,-280 578.5,-280\" stroke=\"#000000\"/>\n",
-       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"581.5\" y=\"-286.8\">0</text>\n",
-       "<polygon fill=\"#ffff00\" points=\"591.5,-280 591.5,-301 604.5,-301 604.5,-280 591.5,-280\" stroke=\"transparent\"/>\n",
-       "<polygon fill=\"none\" points=\"591.5,-280 591.5,-301 604.5,-301 604.5,-280 591.5,-280\" stroke=\"#000000\"/>\n",
-       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"594.5\" y=\"-286.8\">3</text>\n",
-       "<polygon fill=\"none\" points=\"604.5,-280 604.5,-301 625.5,-301 625.5,-280 604.5,-280\" stroke=\"#000000\"/>\n",
-       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"608\" y=\"-286.8\">#2</text>\n",
-       "<polygon fill=\"#ffff00\" points=\"625.5,-280 625.5,-301 638.5,-301 638.5,-280 625.5,-280\" stroke=\"transparent\"/>\n",
-       "<polygon fill=\"none\" points=\"625.5,-280 625.5,-301 638.5,-301 638.5,-280 625.5,-280\" stroke=\"#000000\"/>\n",
-       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"628.5\" y=\"-286.8\">0</text>\n",
-       "<polygon fill=\"#ffff00\" points=\"638.5,-280 638.5,-301 651.5,-301 651.5,-280 638.5,-280\" stroke=\"transparent\"/>\n",
-       "<polygon fill=\"none\" points=\"638.5,-280 638.5,-301 651.5,-301 651.5,-280 638.5,-280\" stroke=\"#000000\"/>\n",
-       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"641.5\" y=\"-286.8\">1</text>\n",
-       "<polygon fill=\"none\" points=\"651.5,-280 651.5,-301 672.5,-301 672.5,-280 651.5,-280\" stroke=\"#000000\"/>\n",
-       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"655\" y=\"-286.8\">#3</text>\n",
-       "<polygon fill=\"#ffff00\" points=\"672.5,-280 672.5,-301 685.5,-301 685.5,-280 672.5,-280\" stroke=\"transparent\"/>\n",
-       "<polygon fill=\"none\" points=\"672.5,-280 672.5,-301 685.5,-301 685.5,-280 672.5,-280\" stroke=\"#000000\"/>\n",
-       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"675.5\" y=\"-286.8\">0</text>\n",
-       "<polygon fill=\"#ffff00\" points=\"685.5,-280 685.5,-301 698.5,-301 698.5,-280 685.5,-280\" stroke=\"transparent\"/>\n",
-       "<polygon fill=\"none\" points=\"685.5,-280 685.5,-301 698.5,-301 698.5,-280 685.5,-280\" stroke=\"#000000\"/>\n",
-       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"688.5\" y=\"-286.8\">1</text>\n",
-       "<polygon fill=\"#ffff00\" points=\"698.5,-280 698.5,-301 711.5,-301 711.5,-280 698.5,-280\" stroke=\"transparent\"/>\n",
-       "<polygon fill=\"none\" points=\"698.5,-280 698.5,-301 711.5,-301 711.5,-280 698.5,-280\" stroke=\"#000000\"/>\n",
-       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"701.5\" y=\"-286.8\">2</text>\n",
+       "<polygon fill=\"#ffc0cb\" points=\"603.5,-301 603.5,-322 652.5,-322 652.5,-301 603.5,-301\" stroke=\"transparent\"/>\n",
+       "<polyline fill=\"none\" points=\"603.5,-301 652.5,-301 \" stroke=\"#000000\"/>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"614\" y=\"-307.8\">dests</text>\n",
+       "<polygon fill=\"#ffc0cb\" points=\"652.5,-301 652.5,-322 673.5,-322 673.5,-301 652.5,-301\" stroke=\"transparent\"/>\n",
+       "<polyline fill=\"none\" points=\"652.5,-301 673.5,-301 \" stroke=\"#000000\"/>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"655.5\" y=\"-307.8\">~0</text>\n",
+       "<polyline fill=\"none\" points=\"673.5,-301 686.5,-301 \" stroke=\"#000000\"/>\n",
+       "<polyline fill=\"none\" points=\"686.5,-301 699.5,-301 \" stroke=\"#000000\"/>\n",
+       "<polygon fill=\"#ffc0cb\" points=\"699.5,-301 699.5,-322 720.5,-322 720.5,-301 699.5,-301\" stroke=\"transparent\"/>\n",
+       "<polyline fill=\"none\" points=\"699.5,-301 720.5,-301 \" stroke=\"#000000\"/>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"702.5\" y=\"-307.8\">~3</text>\n",
+       "<polyline fill=\"none\" points=\"720.5,-301 733.5,-301 \" stroke=\"#000000\"/>\n",
+       "<polyline fill=\"none\" points=\"733.5,-301 746.5,-301 \" stroke=\"#000000\"/>\n",
+       "<polygon fill=\"#ffc0cb\" points=\"746.5,-301 746.5,-322 767.5,-322 767.5,-301 746.5,-301\" stroke=\"transparent\"/>\n",
+       "<polyline fill=\"none\" points=\"746.5,-301 767.5,-301 \" stroke=\"#000000\"/>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"749.5\" y=\"-307.8\">~6</text>\n",
+       "<polyline fill=\"none\" points=\"767.5,-301 780.5,-301 \" stroke=\"#000000\"/>\n",
+       "<polyline fill=\"none\" points=\"780.5,-301 793.5,-301 \" stroke=\"#000000\"/>\n",
+       "<polyline fill=\"none\" points=\"793.5,-301 806.5,-301 \" stroke=\"#000000\"/>\n",
+       "<polygon fill=\"none\" points=\"603.5,-280 603.5,-301 652.5,-301 652.5,-280 603.5,-280\" stroke=\"#000000\"/>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"606.5\" y=\"-286.8\">#cnt/dst</text>\n",
+       "<polygon fill=\"none\" points=\"652.5,-280 652.5,-301 673.5,-301 673.5,-280 652.5,-280\" stroke=\"#000000\"/>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"656\" y=\"-286.8\">#2</text>\n",
+       "<polygon fill=\"#ffff00\" points=\"673.5,-280 673.5,-301 686.5,-301 686.5,-280 673.5,-280\" stroke=\"transparent\"/>\n",
+       "<polygon fill=\"none\" points=\"673.5,-280 673.5,-301 686.5,-301 686.5,-280 673.5,-280\" stroke=\"#000000\"/>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"676.5\" y=\"-286.8\">0</text>\n",
+       "<polygon fill=\"#ffff00\" points=\"686.5,-280 686.5,-301 699.5,-301 699.5,-280 686.5,-280\" stroke=\"transparent\"/>\n",
+       "<polygon fill=\"none\" points=\"686.5,-280 686.5,-301 699.5,-301 699.5,-280 686.5,-280\" stroke=\"#000000\"/>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"689.5\" y=\"-286.8\">3</text>\n",
+       "<polygon fill=\"none\" points=\"699.5,-280 699.5,-301 720.5,-301 720.5,-280 699.5,-280\" stroke=\"#000000\"/>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"703\" y=\"-286.8\">#2</text>\n",
+       "<polygon fill=\"#ffff00\" points=\"720.5,-280 720.5,-301 733.5,-301 733.5,-280 720.5,-280\" stroke=\"transparent\"/>\n",
+       "<polygon fill=\"none\" points=\"720.5,-280 720.5,-301 733.5,-301 733.5,-280 720.5,-280\" stroke=\"#000000\"/>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"723.5\" y=\"-286.8\">0</text>\n",
+       "<polygon fill=\"#ffff00\" points=\"733.5,-280 733.5,-301 746.5,-301 746.5,-280 733.5,-280\" stroke=\"transparent\"/>\n",
+       "<polygon fill=\"none\" points=\"733.5,-280 733.5,-301 746.5,-301 746.5,-280 733.5,-280\" stroke=\"#000000\"/>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"736.5\" y=\"-286.8\">1</text>\n",
+       "<polygon fill=\"none\" points=\"746.5,-280 746.5,-301 767.5,-301 767.5,-280 746.5,-280\" stroke=\"#000000\"/>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"750\" y=\"-286.8\">#3</text>\n",
+       "<polygon fill=\"#ffff00\" points=\"767.5,-280 767.5,-301 780.5,-301 780.5,-280 767.5,-280\" stroke=\"transparent\"/>\n",
+       "<polygon fill=\"none\" points=\"767.5,-280 767.5,-301 780.5,-301 780.5,-280 767.5,-280\" stroke=\"#000000\"/>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"770.5\" y=\"-286.8\">0</text>\n",
+       "<polygon fill=\"#ffff00\" points=\"780.5,-280 780.5,-301 793.5,-301 793.5,-280 780.5,-280\" stroke=\"transparent\"/>\n",
+       "<polygon fill=\"none\" points=\"780.5,-280 780.5,-301 793.5,-301 793.5,-280 780.5,-280\" stroke=\"#000000\"/>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"783.5\" y=\"-286.8\">1</text>\n",
+       "<polygon fill=\"#ffff00\" points=\"793.5,-280 793.5,-301 806.5,-301 806.5,-280 793.5,-280\" stroke=\"transparent\"/>\n",
+       "<polygon fill=\"none\" points=\"793.5,-280 793.5,-301 806.5,-301 806.5,-280 793.5,-280\" stroke=\"#000000\"/>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"796.5\" y=\"-286.8\">2</text>\n",
        "</g>\n",
        "<!-- meta -->\n",
        "<g class=\"node\" id=\"node4\">\n",
@@ -3922,26 +4115,26 @@
        "<!-- props -->\n",
        "<g class=\"node\" id=\"node5\">\n",
        "<title>props</title>\n",
-       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"233.5\" y=\"-180.8\">prop_state_acc:</text>\n",
-       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"377.5\" y=\"-180.8\">maybe</text>\n",
-       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"233.5\" y=\"-161.8\">prop_inherently_weak:</text>\n",
-       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"377.5\" y=\"-161.8\">maybe</text>\n",
-       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"233.5\" y=\"-142.8\">prop_terminal:</text>\n",
-       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"377.5\" y=\"-142.8\">maybe</text>\n",
-       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"233.5\" y=\"-123.8\">prop_weak:</text>\n",
-       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"377.5\" y=\"-123.8\">maybe</text>\n",
-       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"233.5\" y=\"-104.8\">prop_very_weak:</text>\n",
-       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"377.5\" y=\"-104.8\">maybe</text>\n",
-       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"233.5\" y=\"-85.8\">prop_complete:</text>\n",
-       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"377.5\" y=\"-85.8\">maybe</text>\n",
-       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"233.5\" y=\"-66.8\">prop_universal:</text>\n",
-       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"377.5\" y=\"-66.8\">maybe</text>\n",
-       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"233.5\" y=\"-47.8\">prop_unambiguous:</text>\n",
-       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"377.5\" y=\"-47.8\">maybe</text>\n",
-       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"233.5\" y=\"-28.8\">prop_semi_deterministic:</text>\n",
-       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"377.5\" y=\"-28.8\">maybe</text>\n",
-       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"233.5\" y=\"-9.8\">prop_stutter_invariant:</text>\n",
-       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"377.5\" y=\"-9.8\">maybe</text>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"281.5\" y=\"-180.8\">prop_state_acc:</text>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"425.5\" y=\"-180.8\">maybe</text>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"281.5\" y=\"-161.8\">prop_inherently_weak:</text>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"425.5\" y=\"-161.8\">maybe</text>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"281.5\" y=\"-142.8\">prop_terminal:</text>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"425.5\" y=\"-142.8\">maybe</text>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"281.5\" y=\"-123.8\">prop_weak:</text>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"425.5\" y=\"-123.8\">maybe</text>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"281.5\" y=\"-104.8\">prop_very_weak:</text>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"425.5\" y=\"-104.8\">maybe</text>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"281.5\" y=\"-85.8\">prop_complete:</text>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"425.5\" y=\"-85.8\">maybe</text>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"281.5\" y=\"-66.8\">prop_universal:</text>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"425.5\" y=\"-66.8\">maybe</text>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"281.5\" y=\"-47.8\">prop_unambiguous:</text>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"425.5\" y=\"-47.8\">maybe</text>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"281.5\" y=\"-28.8\">prop_semi_deterministic:</text>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"425.5\" y=\"-28.8\">maybe</text>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"281.5\" y=\"-9.8\">prop_stutter_invariant:</text>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"425.5\" y=\"-9.8\">maybe</text>\n",
        "</g>\n",
        "<!-- props&#45;&gt;edges -->\n",
        "</g>\n",
@@ -3981,189 +4174,206 @@
        "<!-- Generated by graphviz version 2.40.1 (20161225.0304)\n",
        " -->\n",
        "<!-- Pages: 1 -->\n",
-       "<svg width=\"466pt\" height=\"354pt\"\n",
-       " viewBox=\"0.00 0.00 466.30 354.00\" xmlns=\"http://www.w3.org/2000/svg\" xmlns:xlink=\"http://www.w3.org/1999/xlink\">\n",
-       "<g id=\"graph0\" class=\"graph\" transform=\"scale(1 1) rotate(0) translate(4 350)\">\n",
-       "<polygon fill=\"#ffffff\" stroke=\"transparent\" points=\"-4,4 -4,-350 462.3,-350 462.3,4 -4,4\"/>\n",
-       "<text text-anchor=\"start\" x=\"177.15\" y=\"-331.8\" font-family=\"Lato\" font-size=\"14.00\" fill=\"#000000\">Fin(</text>\n",
-       "<text text-anchor=\"start\" x=\"202.15\" y=\"-331.8\" font-family=\"Lato\" font-size=\"14.00\" fill=\"#1f78b4\">⓿</text>\n",
-       "<text text-anchor=\"start\" x=\"218.15\" y=\"-331.8\" font-family=\"Lato\" font-size=\"14.00\" fill=\"#000000\">) &amp; Inf(</text>\n",
-       "<text text-anchor=\"start\" x=\"261.15\" y=\"-331.8\" font-family=\"Lato\" font-size=\"14.00\" fill=\"#ff4da0\">❶</text>\n",
-       "<text text-anchor=\"start\" x=\"277.15\" y=\"-331.8\" font-family=\"Lato\" font-size=\"14.00\" fill=\"#000000\">)</text>\n",
-       "<text text-anchor=\"start\" x=\"200.15\" y=\"-317.8\" font-family=\"Lato\" font-size=\"14.00\" fill=\"#000000\">[Rabin 1]</text>\n",
+       "<svg width=\"466pt\" height=\"360pt\"\n",
+       " viewBox=\"0.00 0.00 465.71 360.00\" xmlns=\"http://www.w3.org/2000/svg\" xmlns:xlink=\"http://www.w3.org/1999/xlink\">\n",
+       "<g id=\"graph0\" class=\"graph\" transform=\"scale(.9945 .9945) rotate(0) translate(4 358)\">\n",
+       "<polygon fill=\"#ffffff\" stroke=\"transparent\" points=\"-4,4 -4,-358 464.3,-358 464.3,4 -4,4\"/>\n",
+       "<text text-anchor=\"start\" x=\"178.15\" y=\"-339.8\" font-family=\"Lato\" font-size=\"14.00\" fill=\"#000000\">Fin(</text>\n",
+       "<text text-anchor=\"start\" x=\"203.15\" y=\"-339.8\" font-family=\"Lato\" font-size=\"14.00\" fill=\"#1f78b4\">⓿</text>\n",
+       "<text text-anchor=\"start\" x=\"219.15\" y=\"-339.8\" font-family=\"Lato\" font-size=\"14.00\" fill=\"#000000\">) &amp; Inf(</text>\n",
+       "<text text-anchor=\"start\" x=\"262.15\" y=\"-339.8\" font-family=\"Lato\" font-size=\"14.00\" fill=\"#ff4da0\">❶</text>\n",
+       "<text text-anchor=\"start\" x=\"278.15\" y=\"-339.8\" font-family=\"Lato\" font-size=\"14.00\" fill=\"#000000\">)</text>\n",
+       "<text text-anchor=\"start\" x=\"201.15\" y=\"-325.8\" font-family=\"Lato\" font-size=\"14.00\" fill=\"#000000\">[Rabin 1]</text>\n",
        "<!-- I -->\n",
        "<!-- &#45;7 -->\n",
        "<g id=\"node2\" class=\"node\">\n",
        "<title>&#45;7</title>\n",
-       "<ellipse fill=\"#ffffaa\" stroke=\"#000000\" cx=\"39.8\" cy=\"-76\" rx=\"1.8\" ry=\"1.8\"/>\n",
+       "<ellipse fill=\"#ffffaa\" stroke=\"#000000\" cx=\"39.8\" cy=\"-91\" rx=\"1.8\" ry=\"1.8\"/>\n",
        "</g>\n",
        "<!-- I&#45;&gt;&#45;7 -->\n",
        "<g id=\"edge1\" class=\"edge\">\n",
        "<title>I&#45;&gt;&#45;7</title>\n",
-       "<path fill=\"none\" stroke=\"#000000\" d=\"M1.1821,-76C4.6508,-76 20.5694,-76 30.8552,-76\"/>\n",
-       "<polygon fill=\"none\" stroke=\"#000000\" points=\"30.9898,-78.4501 37.9898,-76 30.9898,-73.5501 30.9898,-78.4501\"/>\n",
+       "<path fill=\"none\" stroke=\"#000000\" d=\"M1.1821,-91C4.6508,-91 20.5694,-91 30.8552,-91\"/>\n",
+       "<polygon fill=\"none\" stroke=\"#000000\" points=\"30.9898,-93.4501 37.9898,-91 30.9898,-88.5501 30.9898,-93.4501\"/>\n",
        "</g>\n",
        "<!-- 0 -->\n",
        "<g id=\"node3\" class=\"node\">\n",
        "<title>0</title>\n",
-       "<ellipse fill=\"#ffffaa\" stroke=\"#000000\" cx=\"177.6\" cy=\"-122\" rx=\"18\" ry=\"18\"/>\n",
-       "<text text-anchor=\"middle\" x=\"177.6\" y=\"-118.3\" font-family=\"Lato\" font-size=\"14.00\" fill=\"#000000\">0</text>\n",
+       "<ellipse fill=\"#ffffaa\" stroke=\"#000000\" cx=\"177.6\" cy=\"-137\" rx=\"18\" ry=\"18\"/>\n",
+       "<text text-anchor=\"middle\" x=\"177.6\" y=\"-133.3\" font-family=\"Lato\" font-size=\"14.00\" fill=\"#000000\">0</text>\n",
        "</g>\n",
        "<!-- &#45;7&#45;&gt;0 -->\n",
        "<g id=\"edge2\" class=\"edge\">\n",
        "<title>&#45;7&#45;&gt;0</title>\n",
-       "<path fill=\"none\" stroke=\"#000000\" d=\"M41.6817,-76.3648C50.2252,-78.0444 86.176,-85.3649 114.6,-95 128.166,-99.5986 142.9035,-105.8422 154.7114,-111.1672\"/>\n",
-       "<polygon fill=\"#000000\" stroke=\"#000000\" points=\"161.2942,-114.1769 153.6182,-114.1309 158.1111,-112.7215 154.928,-111.2662 154.928,-111.2662 154.928,-111.2662 158.1111,-112.7215 156.2378,-108.4014 161.2942,-114.1769 161.2942,-114.1769\"/>\n",
+       "<path fill=\"none\" stroke=\"#000000\" d=\"M41.6817,-91.3648C50.2252,-93.0444 86.176,-100.3649 114.6,-110 128.166,-114.5986 142.9035,-120.8422 154.7114,-126.1672\"/>\n",
+       "<polygon fill=\"#000000\" stroke=\"#000000\" points=\"161.2942,-129.1769 153.6182,-129.1309 158.1111,-127.7215 154.928,-126.2662 154.928,-126.2662 154.928,-126.2662 158.1111,-127.7215 156.2378,-123.4014 161.2942,-129.1769 161.2942,-129.1769\"/>\n",
        "</g>\n",
        "<!-- 1 -->\n",
        "<g id=\"node4\" class=\"node\">\n",
        "<title>1</title>\n",
-       "<ellipse fill=\"#ffffaa\" stroke=\"#000000\" cx=\"439.8\" cy=\"-60\" rx=\"18\" ry=\"18\"/>\n",
-       "<text text-anchor=\"middle\" x=\"439.8\" y=\"-56.3\" font-family=\"Lato\" font-size=\"14.00\" fill=\"#000000\">1</text>\n",
+       "<ellipse fill=\"#ffffaa\" stroke=\"#000000\" cx=\"439.8\" cy=\"-62\" rx=\"18\" ry=\"18\"/>\n",
+       "<text text-anchor=\"middle\" x=\"439.8\" y=\"-58.3\" font-family=\"Lato\" font-size=\"14.00\" fill=\"#000000\">1</text>\n",
        "</g>\n",
        "<!-- &#45;7&#45;&gt;1 -->\n",
        "<g id=\"edge3\" class=\"edge\">\n",
        "<title>&#45;7&#45;&gt;1</title>\n",
-       "<path fill=\"none\" stroke=\"#000000\" d=\"M40.1964,-74.1213C42.7854,-62.418 58.3844,0 96.6,0 96.6,0 96.6,0 383,0 404.1472,0 419.7753,-19.8995 429.2276,-36.7783\"/>\n",
-       "<polygon fill=\"#000000\" stroke=\"#000000\" points=\"432.6638,-43.2867 426.6099,-38.5671 431.0296,-40.1915 429.3955,-37.0964 429.3955,-37.0964 429.3955,-37.0964 431.0296,-40.1915 432.1811,-35.6257 432.6638,-43.2867 432.6638,-43.2867\"/>\n",
+       "<path fill=\"none\" stroke=\"#000000\" d=\"M40.0208,-89.0993C41.6528,-76.0314 53.0208,0 96.6,0 96.6,0 96.6,0 383,0 404.8423,0 420.5555,-21.1797 429.8427,-38.7812\"/>\n",
+       "<polygon fill=\"#000000\" stroke=\"#000000\" points=\"432.973,-45.0582 427.0301,-40.1997 431.411,-41.9261 429.849,-38.794 429.849,-38.794 429.849,-38.794 431.411,-41.9261 432.6679,-37.3882 432.973,-45.0582 432.973,-45.0582\"/>\n",
        "</g>\n",
        "<!-- 2 -->\n",
        "<g id=\"node5\" class=\"node\">\n",
        "<title>2</title>\n",
-       "<ellipse fill=\"#ffffaa\" stroke=\"#000000\" cx=\"96.6\" cy=\"-122\" rx=\"18\" ry=\"18\"/>\n",
-       "<text text-anchor=\"middle\" x=\"96.6\" y=\"-118.3\" font-family=\"Lato\" font-size=\"14.00\" fill=\"#000000\">2</text>\n",
+       "<ellipse fill=\"#ffffaa\" stroke=\"#000000\" cx=\"96.6\" cy=\"-137\" rx=\"18\" ry=\"18\"/>\n",
+       "<text text-anchor=\"middle\" x=\"96.6\" y=\"-133.3\" font-family=\"Lato\" font-size=\"14.00\" fill=\"#000000\">2</text>\n",
        "</g>\n",
        "<!-- &#45;7&#45;&gt;2 -->\n",
        "<g id=\"edge4\" class=\"edge\">\n",
        "<title>&#45;7&#45;&gt;2</title>\n",
-       "<path fill=\"none\" stroke=\"#000000\" d=\"M41.2041,-77.1371C46.107,-81.1078 62.9194,-94.7235 76.7491,-105.9235\"/>\n",
-       "<polygon fill=\"#000000\" stroke=\"#000000\" points=\"82.45,-110.5405 75.0277,-108.5829 79.7301,-108.3378 77.0102,-106.135 77.0102,-106.135 77.0102,-106.135 79.7301,-108.3378 78.9927,-103.6871 82.45,-110.5405 82.45,-110.5405\"/>\n",
+       "<path fill=\"none\" stroke=\"#000000\" d=\"M41.2041,-92.1371C46.107,-96.1078 62.9194,-109.7235 76.7491,-120.9235\"/>\n",
+       "<polygon fill=\"#000000\" stroke=\"#000000\" points=\"82.45,-125.5405 75.0277,-123.5829 79.7301,-123.3378 77.0102,-121.135 77.0102,-121.135 77.0102,-121.135 79.7301,-123.3378 78.9927,-118.6871 82.45,-125.5405 82.45,-125.5405\"/>\n",
+       "</g>\n",
+       "<!-- 0&#45;&gt;0 -->\n",
+       "<g id=\"edge5\" class=\"edge\">\n",
+       "<title>0&#45;&gt;0</title>\n",
+       "<path fill=\"none\" stroke=\"#000000\" d=\"M170.5688,-153.6641C169.0063,-163.625 171.35,-173 177.6,-173 182.2875,-173 184.7777,-167.7266 185.0707,-160.8876\"/>\n",
+       "<polygon fill=\"#000000\" stroke=\"#000000\" points=\"184.6313,-153.6641 188.2006,-160.4598 184.8438,-157.1576 185.0564,-160.6511 185.0564,-160.6511 185.0564,-160.6511 184.8438,-157.1576 181.9122,-160.8425 184.6313,-153.6641 184.6313,-153.6641\"/>\n",
+       "<text text-anchor=\"start\" x=\"159.1\" y=\"-191.8\" font-family=\"Lato\" font-size=\"14.00\" fill=\"#000000\">a &amp; !b</text>\n",
+       "<text text-anchor=\"start\" x=\"169.6\" y=\"-176.8\" font-family=\"Lato\" font-size=\"14.00\" fill=\"#1f78b4\">⓿</text>\n",
        "</g>\n",
        "<!-- 0&#45;&gt;1 -->\n",
-       "<g id=\"edge5\" class=\"edge\">\n",
+       "<g id=\"edge6\" class=\"edge\">\n",
        "<title>0&#45;&gt;1</title>\n",
-       "<path fill=\"none\" stroke=\"#000000\" d=\"M181.6997,-139.8175C191.7235,-181.1385 218.8933,-280 249.4,-280 249.4,-280 249.4,-280 383,-280 422.8283,-280 435.1648,-143.1137 438.5991,-85.2938\"/>\n",
-       "<polygon fill=\"#000000\" stroke=\"#000000\" points=\"439.0095,-78.0035 441.761,-85.1696 438.8128,-81.498 438.616,-84.9925 438.616,-84.9925 438.616,-84.9925 438.8128,-81.498 435.471,-84.8154 439.0095,-78.0035 439.0095,-78.0035\"/>\n",
-       "<text text-anchor=\"start\" x=\"288.2\" y=\"-298.8\" font-family=\"Lato\" font-size=\"14.00\" fill=\"#000000\">!a &amp; !b</text>\n",
-       "<text text-anchor=\"start\" x=\"300.7\" y=\"-283.8\" font-family=\"Lato\" font-size=\"14.00\" fill=\"#1f78b4\">⓿</text>\n",
+       "<path fill=\"none\" stroke=\"#000000\" d=\"M182.0004,-154.6171C192.4647,-194.4493 220.1543,-288 249.4,-288 249.4,-288 249.4,-288 383,-288 424.0278,-288 435.6984,-146.136 438.7766,-87.2016\"/>\n",
+       "<polygon fill=\"#000000\" stroke=\"#000000\" points=\"439.126,-80.1125 441.9275,-87.2591 438.9537,-83.6083 438.7813,-87.104 438.7813,-87.104 438.7813,-87.104 438.9537,-83.6083 435.6351,-86.9489 439.126,-80.1125 439.126,-80.1125\"/>\n",
+       "<text text-anchor=\"start\" x=\"288.2\" y=\"-306.8\" font-family=\"Lato\" font-size=\"14.00\" fill=\"#000000\">!a &amp; !b</text>\n",
+       "<text text-anchor=\"start\" x=\"300.7\" y=\"-291.8\" font-family=\"Lato\" font-size=\"14.00\" fill=\"#1f78b4\">⓿</text>\n",
        "</g>\n",
        "<!-- &#45;1 -->\n",
        "<g id=\"node6\" class=\"node\">\n",
        "<title>&#45;1</title>\n",
-       "<ellipse fill=\"#ffffaa\" stroke=\"#000000\" cx=\"249.4\" cy=\"-164\" rx=\"1.8\" ry=\"1.8\"/>\n",
+       "<ellipse fill=\"#ffffaa\" stroke=\"#000000\" cx=\"249.4\" cy=\"-172\" rx=\"1.8\" ry=\"1.8\"/>\n",
        "</g>\n",
        "<!-- 0&#45;&gt;&#45;1 -->\n",
-       "<g id=\"edge6\" class=\"edge\">\n",
+       "<g id=\"edge7\" class=\"edge\">\n",
        "<title>0&#45;&gt;&#45;1</title>\n",
-       "<path fill=\"none\" stroke=\"#000000\" d=\"M195.3191,-117.949C206.0543,-116.5027 219.5659,-116.5676 229.6,-123 240.6051,-130.0549 245.6545,-145.1047 247.8503,-154.8759\"/>\n",
-       "<polygon fill=\"none\" stroke=\"#000000\" points=\"245.4814,-155.5414 249.1537,-161.9848 250.301,-154.6577 245.4814,-155.5414\"/>\n",
-       "<text text-anchor=\"start\" x=\"218.1\" y=\"-141.8\" font-family=\"Lato\" font-size=\"14.00\" fill=\"#000000\">a</text>\n",
-       "<text text-anchor=\"start\" x=\"213.6\" y=\"-126.8\" font-family=\"Lato\" font-size=\"14.00\" fill=\"#ff4da0\">❶</text>\n",
+       "<path fill=\"none\" stroke=\"#000000\" d=\"M195.6361,-133.1658C206.2288,-131.8874 219.4801,-132.0523 229.6,-138 238.866,-143.4458 244.2215,-155.0413 246.9731,-163.1698\"/>\n",
+       "<polygon fill=\"none\" stroke=\"#000000\" points=\"244.6467,-163.9441 248.9528,-169.9823 249.352,-162.5767 244.6467,-163.9441\"/>\n",
+       "<text text-anchor=\"start\" x=\"218.1\" y=\"-156.8\" font-family=\"Lato\" font-size=\"14.00\" fill=\"#000000\">a</text>\n",
+       "<text text-anchor=\"start\" x=\"213.6\" y=\"-141.8\" font-family=\"Lato\" font-size=\"14.00\" fill=\"#ff4da0\">❶</text>\n",
        "</g>\n",
        "<!-- 1&#45;&gt;0 -->\n",
-       "<g id=\"edge9\" class=\"edge\">\n",
-       "<title>1&#45;&gt;0</title>\n",
-       "<path fill=\"none\" stroke=\"#000000\" d=\"M422.9166,-53.5736C411.7567,-49.8933 396.7109,-46 383,-46 249.4,-46 249.4,-46 249.4,-46 219.9932,-46 199.051,-76.4373 187.637,-98.7878\"/>\n",
-       "<polygon fill=\"#000000\" stroke=\"#000000\" points=\"184.5364,-105.1331 184.7794,-97.4608 186.073,-101.9885 187.6096,-98.8438 187.6096,-98.8438 187.6096,-98.8438 186.073,-101.9885 190.4398,-100.2268 184.5364,-105.1331 184.5364,-105.1331\"/>\n",
-       "<text text-anchor=\"start\" x=\"291.7\" y=\"-49.8\" font-family=\"Lato\" font-size=\"14.00\" fill=\"#000000\">a &amp; b</text>\n",
-       "</g>\n",
-       "<!-- 1&#45;&gt;1 -->\n",
        "<g id=\"edge10\" class=\"edge\">\n",
-       "<title>1&#45;&gt;1</title>\n",
-       "<path fill=\"none\" stroke=\"#000000\" d=\"M436.5643,-77.7817C436.0144,-87.3149 437.093,-96 439.8,-96 441.788,-96 442.8977,-91.3161 443.1292,-85.0521\"/>\n",
-       "<polygon fill=\"#000000\" stroke=\"#000000\" points=\"443.0357,-77.7817 446.2756,-84.7406 443.0808,-81.2814 443.1258,-84.7812 443.1258,-84.7812 443.1258,-84.7812 443.0808,-81.2814 439.9761,-84.8217 443.0357,-77.7817 443.0357,-77.7817\"/>\n",
-       "<text text-anchor=\"start\" x=\"421.3\" y=\"-114.8\" font-family=\"Lato\" font-size=\"14.00\" fill=\"#000000\">!a &amp; b</text>\n",
-       "<text text-anchor=\"start\" x=\"431.8\" y=\"-99.8\" font-family=\"Lato\" font-size=\"14.00\" fill=\"#ff4da0\">❶</text>\n",
+       "<title>1&#45;&gt;0</title>\n",
+       "<path fill=\"none\" stroke=\"#000000\" d=\"M423.2434,-54.749C412.0927,-50.5156 396.933,-46 383,-46 249.4,-46 249.4,-46 249.4,-46 215.4091,-46 195.0158,-85.6144 185.0739,-112.5688\"/>\n",
+       "<polygon fill=\"#000000\" stroke=\"#000000\" points=\"182.6568,-119.4543 182.0033,-111.806 183.8161,-116.1519 184.9754,-112.8494 184.9754,-112.8494 184.9754,-112.8494 183.8161,-116.1519 187.9476,-113.8928 182.6568,-119.4543 182.6568,-119.4543\"/>\n",
+       "<text text-anchor=\"start\" x=\"290.2\" y=\"-64.8\" font-family=\"Lato\" font-size=\"14.00\" fill=\"#000000\">a &amp; !b</text>\n",
+       "<text text-anchor=\"start\" x=\"300.7\" y=\"-49.8\" font-family=\"Lato\" font-size=\"14.00\" fill=\"#1f78b4\">⓿</text>\n",
        "</g>\n",
        "<!-- 1&#45;&gt;1 -->\n",
        "<g id=\"edge11\" class=\"edge\">\n",
        "<title>1&#45;&gt;1</title>\n",
-       "<path fill=\"none\" stroke=\"#000000\" d=\"M434.7906,-77.5771C431.3451,-98.718 433.0148,-126 439.8,-126 445.843,-126 447.8285,-104.3596 445.7564,-84.6907\"/>\n",
-       "<polygon fill=\"#000000\" stroke=\"#000000\" points=\"444.8094,-77.5771 448.8556,-84.1002 445.2713,-81.0465 445.7332,-84.5159 445.7332,-84.5159 445.7332,-84.5159 445.2713,-81.0465 442.6107,-84.9316 444.8094,-77.5771 444.8094,-77.5771\"/>\n",
-       "<text text-anchor=\"start\" x=\"435.3\" y=\"-143.8\" font-family=\"Lato\" font-size=\"14.00\" fill=\"#000000\">1</text>\n",
-       "<text text-anchor=\"start\" x=\"423.8\" y=\"-129.8\" font-family=\"Lato\" font-size=\"14.00\" fill=\"#1f78b4\">⓿</text>\n",
-       "<text text-anchor=\"start\" x=\"439.8\" y=\"-129.8\" font-family=\"Lato\" font-size=\"14.00\" fill=\"#ff4da0\">❶</text>\n",
+       "<path fill=\"none\" stroke=\"#000000\" d=\"M437.6291,-80.1527C437.2951,-89.5391 438.0188,-98 439.8,-98 441.1081,-98 441.8458,-93.437 442.0132,-87.2953\"/>\n",
+       "<polygon fill=\"#000000\" stroke=\"#000000\" points=\"441.9709,-80.1527 445.1624,-87.1339 441.9917,-83.6526 442.0124,-87.1526 442.0124,-87.1526 442.0124,-87.1526 441.9917,-83.6526 438.8625,-87.1713 441.9709,-80.1527 441.9709,-80.1527\"/>\n",
+       "<text text-anchor=\"start\" x=\"419.3\" y=\"-116.8\" font-family=\"Lato\" font-size=\"14.00\" fill=\"#000000\">!a &amp; !b</text>\n",
+       "<text text-anchor=\"start\" x=\"431.8\" y=\"-101.8\" font-family=\"Lato\" font-size=\"14.00\" fill=\"#1f78b4\">⓿</text>\n",
+       "</g>\n",
+       "<!-- 1&#45;&gt;1 -->\n",
+       "<g id=\"edge12\" class=\"edge\">\n",
+       "<title>1&#45;&gt;1</title>\n",
+       "<path fill=\"none\" stroke=\"#000000\" d=\"M436.425,-79.9063C434.175,-101 435.3,-128 439.8,-128 443.8078,-128 445.1385,-106.5833 443.7922,-86.9965\"/>\n",
+       "<polygon fill=\"#000000\" stroke=\"#000000\" points=\"443.175,-79.9063 446.9202,-86.6067 443.4785,-83.3931 443.7821,-86.8799 443.7821,-86.8799 443.7821,-86.8799 443.4785,-83.3931 440.644,-87.1531 443.175,-79.9063 443.175,-79.9063\"/>\n",
+       "<text text-anchor=\"start\" x=\"421.3\" y=\"-146.8\" font-family=\"Lato\" font-size=\"14.00\" fill=\"#000000\">!a &amp; b</text>\n",
+       "<text text-anchor=\"start\" x=\"431.8\" y=\"-131.8\" font-family=\"Lato\" font-size=\"14.00\" fill=\"#ff4da0\">❶</text>\n",
+       "</g>\n",
+       "<!-- 1&#45;&gt;1 -->\n",
+       "<g id=\"edge13\" class=\"edge\">\n",
+       "<title>1&#45;&gt;1</title>\n",
+       "<path fill=\"none\" stroke=\"#000000\" d=\"M435.6867,-79.7715C431.1164,-110.4688 432.4875,-158 439.8,-158 446.5698,-158 448.2473,-117.2623 444.8327,-86.8583\"/>\n",
+       "<polygon fill=\"#000000\" stroke=\"#000000\" points=\"443.9133,-79.7715 447.9378,-86.308 444.3636,-83.2424 444.814,-86.7133 444.814,-86.7133 444.814,-86.7133 444.3636,-83.2424 441.6902,-87.1186 443.9133,-79.7715 443.9133,-79.7715\"/>\n",
+       "<text text-anchor=\"start\" x=\"435.3\" y=\"-175.8\" font-family=\"Lato\" font-size=\"14.00\" fill=\"#000000\">1</text>\n",
+       "<text text-anchor=\"start\" x=\"423.8\" y=\"-161.8\" font-family=\"Lato\" font-size=\"14.00\" fill=\"#1f78b4\">⓿</text>\n",
+       "<text text-anchor=\"start\" x=\"439.8\" y=\"-161.8\" font-family=\"Lato\" font-size=\"14.00\" fill=\"#ff4da0\">❶</text>\n",
        "</g>\n",
        "<!-- 2&#45;&gt;0 -->\n",
-       "<g id=\"edge12\" class=\"edge\">\n",
+       "<g id=\"edge14\" class=\"edge\">\n",
        "<title>2&#45;&gt;0</title>\n",
-       "<path fill=\"none\" stroke=\"#000000\" d=\"M114.9802,-122C126.0352,-122 140.2622,-122 152.3609,-122\"/>\n",
-       "<polygon fill=\"#000000\" stroke=\"#000000\" points=\"159.5716,-122 152.5716,-125.1501 156.0716,-122 152.5716,-122.0001 152.5716,-122.0001 152.5716,-122.0001 156.0716,-122 152.5716,-118.8501 159.5716,-122 159.5716,-122\"/>\n",
-       "<text text-anchor=\"middle\" x=\"137.1\" y=\"-125.8\" font-family=\"Lato\" font-size=\"14.00\" fill=\"#000000\">1</text>\n",
+       "<path fill=\"none\" stroke=\"#000000\" d=\"M114.9802,-137C126.0352,-137 140.2622,-137 152.3609,-137\"/>\n",
+       "<polygon fill=\"#000000\" stroke=\"#000000\" points=\"159.5716,-137 152.5716,-140.1501 156.0716,-137 152.5716,-137.0001 152.5716,-137.0001 152.5716,-137.0001 156.0716,-137 152.5716,-133.8501 159.5716,-137 159.5716,-137\"/>\n",
+       "<text text-anchor=\"middle\" x=\"137.1\" y=\"-140.8\" font-family=\"Lato\" font-size=\"14.00\" fill=\"#000000\">1</text>\n",
        "</g>\n",
        "<!-- &#45;1&#45;&gt;0 -->\n",
-       "<g id=\"edge7\" class=\"edge\">\n",
+       "<g id=\"edge8\" class=\"edge\">\n",
        "<title>&#45;1&#45;&gt;0</title>\n",
-       "<path fill=\"none\" stroke=\"#000000\" d=\"M247.3449,-163.6743C241.6733,-162.7132 225.4393,-159.5373 213.6,-153 207.3431,-149.5452 201.1972,-144.8772 195.804,-140.2132\"/>\n",
-       "<polygon fill=\"#000000\" stroke=\"#000000\" points=\"190.2777,-135.2115 197.5814,-137.5733 192.8727,-137.5602 195.4677,-139.9088 195.4677,-139.9088 195.4677,-139.9088 192.8727,-137.5602 193.3539,-142.2443 190.2777,-135.2115 190.2777,-135.2115\"/>\n",
+       "<path fill=\"none\" stroke=\"#000000\" d=\"M247.3538,-172.1791C241.7053,-172.5899 225.5245,-173.1982 213.6,-168 206.7953,-165.0337 200.3257,-160.3215 194.7967,-155.4578\"/>\n",
+       "<polygon fill=\"#000000\" stroke=\"#000000\" points=\"189.6035,-150.6025 196.8681,-153.0821 192.1601,-152.9928 194.7168,-155.3831 194.7168,-155.3831 194.7168,-155.3831 192.1601,-152.9928 192.5655,-157.6841 189.6035,-150.6025 189.6035,-150.6025\"/>\n",
        "</g>\n",
        "<!-- 3 -->\n",
        "<g id=\"node7\" class=\"node\">\n",
        "<title>3</title>\n",
-       "<ellipse fill=\"#ffffaa\" stroke=\"#000000\" cx=\"308.7\" cy=\"-164\" rx=\"18\" ry=\"18\"/>\n",
-       "<text text-anchor=\"middle\" x=\"308.7\" y=\"-160.3\" font-family=\"Lato\" font-size=\"14.00\" fill=\"#000000\">3</text>\n",
+       "<ellipse fill=\"#ffffaa\" stroke=\"#000000\" cx=\"308.7\" cy=\"-172\" rx=\"18\" ry=\"18\"/>\n",
+       "<text text-anchor=\"middle\" x=\"308.7\" y=\"-168.3\" font-family=\"Lato\" font-size=\"14.00\" fill=\"#000000\">3</text>\n",
        "</g>\n",
        "<!-- &#45;1&#45;&gt;3 -->\n",
-       "<g id=\"edge8\" class=\"edge\">\n",
+       "<g id=\"edge9\" class=\"edge\">\n",
        "<title>&#45;1&#45;&gt;3</title>\n",
-       "<path fill=\"none\" stroke=\"#000000\" d=\"M251.373,-164C256.4129,-164 270.269,-164 283.0957,-164\"/>\n",
-       "<polygon fill=\"#000000\" stroke=\"#000000\" points=\"290.4545,-164 283.4546,-167.1501 286.9545,-164 283.4545,-164.0001 283.4545,-164.0001 283.4545,-164.0001 286.9545,-164 283.4545,-160.8501 290.4545,-164 290.4545,-164\"/>\n",
+       "<path fill=\"none\" stroke=\"#000000\" d=\"M251.373,-172C256.4129,-172 270.269,-172 283.0957,-172\"/>\n",
+       "<polygon fill=\"#000000\" stroke=\"#000000\" points=\"290.4545,-172 283.4546,-175.1501 286.9545,-172 283.4545,-172.0001 283.4545,-172.0001 283.4545,-172.0001 286.9545,-172 283.4545,-168.8501 290.4545,-172 290.4545,-172\"/>\n",
        "</g>\n",
        "<!-- &#45;4 -->\n",
        "<g id=\"node8\" class=\"node\">\n",
        "<title>&#45;4</title>\n",
-       "<ellipse fill=\"#ffffaa\" stroke=\"#000000\" cx=\"383\" cy=\"-78\" rx=\"1.8\" ry=\"1.8\"/>\n",
+       "<ellipse fill=\"#ffffaa\" stroke=\"#000000\" cx=\"383\" cy=\"-86\" rx=\"1.8\" ry=\"1.8\"/>\n",
        "</g>\n",
        "<!-- 3&#45;&gt;&#45;4 -->\n",
-       "<g id=\"edge13\" class=\"edge\">\n",
+       "<g id=\"edge15\" class=\"edge\">\n",
        "<title>3&#45;&gt;&#45;4</title>\n",
-       "<path fill=\"none\" stroke=\"#000000\" d=\"M320.6376,-150.1826C336.7128,-131.576 364.7131,-99.1666 376.967,-84.983\"/>\n",
-       "<polygon fill=\"none\" stroke=\"#000000\" points=\"378.874,-86.5233 381.5964,-79.6246 375.1661,-83.3198 378.874,-86.5233\"/>\n",
-       "<text text-anchor=\"start\" x=\"349.7\" y=\"-136.8\" font-family=\"Lato\" font-size=\"14.00\" fill=\"#000000\">!a</text>\n",
-       "<text text-anchor=\"start\" x=\"347.2\" y=\"-121.8\" font-family=\"Lato\" font-size=\"14.00\" fill=\"#1f78b4\">⓿</text>\n",
+       "<path fill=\"none\" stroke=\"#000000\" d=\"M320.6376,-158.1826C336.7128,-139.576 364.7131,-107.1666 376.967,-92.983\"/>\n",
+       "<polygon fill=\"none\" stroke=\"#000000\" points=\"378.874,-94.5233 381.5964,-87.6246 375.1661,-91.3198 378.874,-94.5233\"/>\n",
+       "<text text-anchor=\"start\" x=\"349.7\" y=\"-145.8\" font-family=\"Lato\" font-size=\"14.00\" fill=\"#000000\">!a</text>\n",
+       "<text text-anchor=\"start\" x=\"347.2\" y=\"-130.8\" font-family=\"Lato\" font-size=\"14.00\" fill=\"#1f78b4\">⓿</text>\n",
        "</g>\n",
        "<!-- &#45;11 -->\n",
        "<g id=\"node9\" class=\"node\">\n",
        "<title>&#45;11</title>\n",
-       "<ellipse fill=\"#ffffaa\" stroke=\"#000000\" cx=\"383\" cy=\"-209\" rx=\"1.8\" ry=\"1.8\"/>\n",
+       "<ellipse fill=\"#ffffaa\" stroke=\"#000000\" cx=\"383\" cy=\"-217\" rx=\"1.8\" ry=\"1.8\"/>\n",
        "</g>\n",
        "<!-- 3&#45;&gt;&#45;11 -->\n",
-       "<g id=\"edge16\" class=\"edge\">\n",
+       "<g id=\"edge18\" class=\"edge\">\n",
        "<title>3&#45;&gt;&#45;11</title>\n",
-       "<path fill=\"none\" stroke=\"#000000\" d=\"M326.3169,-159.7816C337.7469,-158.0737 352.4568,-157.913 363.2,-165 374.9995,-172.7838 379.8465,-189.4246 381.7798,-199.8634\"/>\n",
-       "<polygon fill=\"none\" stroke=\"#000000\" points=\"379.3637,-200.2742 382.8071,-206.8428 384.2115,-199.5606 379.3637,-200.2742\"/>\n",
-       "<text text-anchor=\"start\" x=\"350.7\" y=\"-183.8\" font-family=\"Lato\" font-size=\"14.00\" fill=\"#000000\">1</text>\n",
-       "<text text-anchor=\"start\" x=\"347.2\" y=\"-168.8\" font-family=\"Lato\" font-size=\"14.00\" fill=\"#1f78b4\">⓿</text>\n",
+       "<path fill=\"none\" stroke=\"#000000\" d=\"M326.3169,-167.7816C337.7469,-166.0737 352.4568,-165.913 363.2,-173 374.9995,-180.7838 379.8465,-197.4246 381.7798,-207.8634\"/>\n",
+       "<polygon fill=\"none\" stroke=\"#000000\" points=\"379.3637,-208.2742 382.8071,-214.8428 384.2115,-207.5606 379.3637,-208.2742\"/>\n",
+       "<text text-anchor=\"start\" x=\"350.7\" y=\"-191.8\" font-family=\"Lato\" font-size=\"14.00\" fill=\"#000000\">1</text>\n",
+       "<text text-anchor=\"start\" x=\"347.2\" y=\"-176.8\" font-family=\"Lato\" font-size=\"14.00\" fill=\"#1f78b4\">⓿</text>\n",
        "</g>\n",
        "<!-- &#45;4&#45;&gt;0 -->\n",
-       "<g id=\"edge14\" class=\"edge\">\n",
+       "<g id=\"edge16\" class=\"edge\">\n",
        "<title>&#45;4&#45;&gt;0</title>\n",
-       "<path fill=\"none\" stroke=\"#000000\" d=\"M380.9851,-78.4208C366.9519,-81.3532 282.3502,-99.0562 213.6,-114 209.94,-114.7955 206.0729,-115.6453 202.2844,-116.4828\"/>\n",
-       "<polygon fill=\"#000000\" stroke=\"#000000\" points=\"195.171,-118.0611 201.3224,-113.4696 198.5879,-117.303 202.0048,-116.5448 202.0048,-116.5448 202.0048,-116.5448 198.5879,-117.303 202.6871,-119.62 195.171,-118.0611 195.171,-118.0611\"/>\n",
+       "<path fill=\"none\" stroke=\"#000000\" d=\"M381.0289,-86.4894C364.7993,-90.5192 252.5631,-118.387 202.0919,-130.9188\"/>\n",
+       "<polygon fill=\"#000000\" stroke=\"#000000\" points=\"195.1123,-132.6518 201.1469,-127.9077 198.5091,-131.8083 201.906,-130.9648 201.906,-130.9648 201.906,-130.9648 198.5091,-131.8083 202.6651,-134.022 195.1123,-132.6518 195.1123,-132.6518\"/>\n",
        "</g>\n",
        "<!-- &#45;4&#45;&gt;1 -->\n",
-       "<g id=\"edge15\" class=\"edge\">\n",
+       "<g id=\"edge17\" class=\"edge\">\n",
        "<title>&#45;4&#45;&gt;1</title>\n",
-       "<path fill=\"none\" stroke=\"#000000\" d=\"M384.8898,-77.4011C389.7948,-75.8467 403.418,-71.5295 415.8668,-67.5845\"/>\n",
-       "<polygon fill=\"#000000\" stroke=\"#000000\" points=\"422.5992,-65.451 416.8778,-70.5685 419.2627,-66.5083 415.9262,-67.5657 415.9262,-67.5657 415.9262,-67.5657 419.2627,-66.5083 414.9746,-64.5629 422.5992,-65.451 422.5992,-65.451\"/>\n",
+       "<path fill=\"none\" stroke=\"#000000\" d=\"M384.8898,-85.2015C389.8598,-83.1015 403.7805,-77.2195 416.3608,-71.9039\"/>\n",
+       "<polygon fill=\"#000000\" stroke=\"#000000\" points=\"423.1467,-69.0366 417.9247,-74.6628 419.9227,-70.3989 416.6987,-71.7612 416.6987,-71.7612 416.6987,-71.7612 419.9227,-70.3989 415.4726,-68.8596 423.1467,-69.0366 423.1467,-69.0366\"/>\n",
        "</g>\n",
        "<!-- &#45;11&#45;&gt;0 -->\n",
-       "<g id=\"edge17\" class=\"edge\">\n",
+       "<g id=\"edge19\" class=\"edge\">\n",
        "<title>&#45;11&#45;&gt;0</title>\n",
-       "<path fill=\"none\" stroke=\"#000000\" d=\"M381.0486,-209.4844C375.6422,-210.7576 360.0229,-213.9681 347.2,-212 285.6776,-202.5574 264.4044,-205.9594 213.6,-170 204.2049,-163.3501 196.2131,-153.4979 190.1636,-144.4468\"/>\n",
-       "<polygon fill=\"#000000\" stroke=\"#000000\" points=\"186.2924,-138.3579 192.7064,-142.5751 188.1703,-141.3115 190.0481,-144.2651 190.0481,-144.2651 190.0481,-144.2651 188.1703,-141.3115 187.3899,-145.9552 186.2924,-138.3579 186.2924,-138.3579\"/>\n",
+       "<path fill=\"none\" stroke=\"#000000\" d=\"M381.052,-217.4611C375.6542,-218.6747 360.0549,-221.7472 347.2,-220 286.1485,-211.7022 264.8493,-217.2002 213.6,-183 204.279,-176.7798 196.2974,-167.359 190.2355,-158.6595\"/>\n",
+       "<polygon fill=\"#000000\" stroke=\"#000000\" points=\"186.3526,-152.8001 192.8452,-156.8951 188.286,-155.7177 190.2195,-158.6352 190.2195,-158.6352 190.2195,-158.6352 188.286,-155.7177 187.5937,-160.3753 186.3526,-152.8001 186.3526,-152.8001\"/>\n",
        "</g>\n",
        "<!-- &#45;11&#45;&gt;3 -->\n",
-       "<g id=\"edge18\" class=\"edge\">\n",
+       "<g id=\"edge20\" class=\"edge\">\n",
        "<title>&#45;11&#45;&gt;3</title>\n",
-       "<path fill=\"none\" stroke=\"#000000\" d=\"M380.9628,-208.4422C375.3371,-206.8527 359.2093,-201.9615 347.2,-195 340.5181,-191.1267 333.776,-186.1453 327.8418,-181.3137\"/>\n",
-       "<polygon fill=\"#000000\" stroke=\"#000000\" points=\"322.2091,-176.5786 329.5944,-178.6718 324.8883,-178.8309 327.5674,-181.0831 327.5674,-181.0831 327.5674,-181.0831 324.8883,-178.8309 325.5404,-183.4943 322.2091,-176.5786 322.2091,-176.5786\"/>\n",
+       "<path fill=\"none\" stroke=\"#000000\" d=\"M380.9628,-216.4422C375.3371,-214.8527 359.2093,-209.9615 347.2,-203 340.5181,-199.1267 333.776,-194.1453 327.8418,-189.3137\"/>\n",
+       "<polygon fill=\"#000000\" stroke=\"#000000\" points=\"322.2091,-184.5786 329.5944,-186.6718 324.8883,-186.8309 327.5674,-189.0831 327.5674,-189.0831 327.5674,-189.0831 324.8883,-186.8309 325.5404,-191.4943 322.2091,-184.5786 322.2091,-184.5786\"/>\n",
        "</g>\n",
        "</g>\n",
        "</svg>\n"
       ],
       "text/plain": [
-       "<spot.twa_graph; proxy of <Swig Object of type 'std::shared_ptr< spot::twa_graph > *' at 0x7f616c1788a0> >"
+       "<spot.twa_graph; proxy of <Swig Object of type 'std::shared_ptr< spot::twa_graph > *' at 0x7f2950267b40> >"
       ]
      },
      "metadata": {},
@@ -4172,262 +4382,294 @@
     {
      "data": {
       "image/svg+xml": [
-       "<svg height=\"262pt\" viewBox=\"0.00 0.00 810.00 262.00\" width=\"810pt\" xmlns=\"http://www.w3.org/2000/svg\" xmlns:xlink=\"http://www.w3.org/1999/xlink\">\n",
+       "<svg height=\"262pt\" viewBox=\"0.00 0.00 908.00 262.00\" width=\"908pt\" xmlns=\"http://www.w3.org/2000/svg\" xmlns:xlink=\"http://www.w3.org/1999/xlink\">\n",
        "<g class=\"graph\" id=\"graph0\" transform=\"scale(1 1) rotate(0) translate(4 258)\">\n",
        "<title>g</title>\n",
-       "<polygon fill=\"#ffffff\" points=\"-4,4 -4,-258 806,-258 806,4 -4,4\" stroke=\"transparent\"/>\n",
+       "<polygon fill=\"#ffffff\" points=\"-4,4 -4,-258 904,-258 904,4 -4,4\" stroke=\"transparent\"/>\n",
        "<!-- states -->\n",
        "<g class=\"node\" id=\"node1\">\n",
        "<title>states</title>\n",
-       "<polygon fill=\"#ffff00\" points=\"33.5,-197 33.5,-218 88.5,-218 88.5,-197 33.5,-197\" stroke=\"transparent\"/>\n",
-       "<polyline fill=\"none\" points=\"33.5,-197 88.5,-197 \" stroke=\"#000000\"/>\n",
-       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"45.5\" y=\"-203.8\">states</text>\n",
-       "<polygon fill=\"#ffff00\" points=\"88.5,-197 88.5,-218 101.5,-218 101.5,-197 88.5,-197\" stroke=\"transparent\"/>\n",
-       "<polyline fill=\"none\" points=\"88.5,-197 101.5,-197 \" stroke=\"#000000\"/>\n",
-       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"91.5\" y=\"-203.8\">0</text>\n",
-       "<polygon fill=\"#ffff00\" points=\"101.5,-197 101.5,-218 114.5,-218 114.5,-197 101.5,-197\" stroke=\"transparent\"/>\n",
-       "<polyline fill=\"none\" points=\"101.5,-197 114.5,-197 \" stroke=\"#000000\"/>\n",
-       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"104.5\" y=\"-203.8\">1</text>\n",
-       "<polygon fill=\"#ffff00\" points=\"114.5,-197 114.5,-218 127.5,-218 127.5,-197 114.5,-197\" stroke=\"transparent\"/>\n",
-       "<polyline fill=\"none\" points=\"114.5,-197 127.5,-197 \" stroke=\"#000000\"/>\n",
-       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"117.5\" y=\"-203.8\">2</text>\n",
-       "<polygon fill=\"#ffff00\" points=\"127.5,-197 127.5,-218 140.5,-218 140.5,-197 127.5,-197\" stroke=\"transparent\"/>\n",
-       "<polyline fill=\"none\" points=\"127.5,-197 140.5,-197 \" stroke=\"#000000\"/>\n",
-       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"130.5\" y=\"-203.8\">3</text>\n",
-       "<polygon fill=\"none\" points=\"33.5,-176 33.5,-197 88.5,-197 88.5,-176 33.5,-176\" stroke=\"#000000\"/>\n",
-       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"48.5\" y=\"-182.8\">succ</text>\n",
-       "<polygon fill=\"#00ffff\" points=\"88.5,-176 88.5,-197 101.5,-197 101.5,-176 88.5,-176\" stroke=\"transparent\"/>\n",
-       "<polygon fill=\"none\" points=\"88.5,-176 88.5,-197 101.5,-197 101.5,-176 88.5,-176\" stroke=\"#000000\"/>\n",
-       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"91.5\" y=\"-182.8\">1</text>\n",
-       "<polygon fill=\"#00ffff\" points=\"101.5,-176 101.5,-197 114.5,-197 114.5,-176 101.5,-176\" stroke=\"transparent\"/>\n",
-       "<polygon fill=\"none\" points=\"101.5,-176 101.5,-197 114.5,-197 114.5,-176 101.5,-176\" stroke=\"#000000\"/>\n",
-       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"104.5\" y=\"-182.8\">2</text>\n",
-       "<polygon fill=\"#00ffff\" points=\"114.5,-176 114.5,-197 127.5,-197 127.5,-176 114.5,-176\" stroke=\"transparent\"/>\n",
-       "<polygon fill=\"none\" points=\"114.5,-176 114.5,-197 127.5,-197 127.5,-176 114.5,-176\" stroke=\"#000000\"/>\n",
-       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"117.5\" y=\"-182.8\">5</text>\n",
-       "<polygon fill=\"#00ffff\" points=\"127.5,-176 127.5,-197 140.5,-197 140.5,-176 127.5,-176\" stroke=\"transparent\"/>\n",
-       "<polygon fill=\"none\" points=\"127.5,-176 127.5,-197 140.5,-197 140.5,-176 127.5,-176\" stroke=\"#000000\"/>\n",
-       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"130.5\" y=\"-182.8\">7</text>\n",
-       "<polygon fill=\"none\" points=\"33.5,-155 33.5,-176 88.5,-176 88.5,-155 33.5,-155\" stroke=\"#000000\"/>\n",
-       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"36.5\" y=\"-161.8\">succ_tail</text>\n",
-       "<polygon fill=\"#00ffff\" points=\"88.5,-155 88.5,-176 101.5,-176 101.5,-155 88.5,-155\" stroke=\"transparent\"/>\n",
-       "<polygon fill=\"none\" points=\"88.5,-155 88.5,-176 101.5,-176 101.5,-155 88.5,-155\" stroke=\"#000000\"/>\n",
-       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"91.5\" y=\"-161.8\">6</text>\n",
-       "<polygon fill=\"#00ffff\" points=\"101.5,-155 101.5,-176 114.5,-176 114.5,-155 101.5,-155\" stroke=\"transparent\"/>\n",
-       "<polygon fill=\"none\" points=\"101.5,-155 101.5,-176 114.5,-176 114.5,-155 101.5,-155\" stroke=\"#000000\"/>\n",
-       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"104.5\" y=\"-161.8\">4</text>\n",
-       "<polygon fill=\"#00ffff\" points=\"114.5,-155 114.5,-176 127.5,-176 127.5,-155 114.5,-155\" stroke=\"transparent\"/>\n",
-       "<polygon fill=\"none\" points=\"114.5,-155 114.5,-176 127.5,-176 127.5,-155 114.5,-155\" stroke=\"#000000\"/>\n",
-       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"117.5\" y=\"-161.8\">5</text>\n",
-       "<polygon fill=\"#00ffff\" points=\"127.5,-155 127.5,-176 140.5,-176 140.5,-155 127.5,-155\" stroke=\"transparent\"/>\n",
-       "<polygon fill=\"none\" points=\"127.5,-155 127.5,-176 140.5,-176 140.5,-155 127.5,-155\" stroke=\"#000000\"/>\n",
-       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"130.5\" y=\"-161.8\">8</text>\n",
+       "<polygon fill=\"#ffff00\" points=\"29.5,-197 29.5,-218 84.5,-218 84.5,-197 29.5,-197\" stroke=\"transparent\"/>\n",
+       "<polyline fill=\"none\" points=\"29.5,-197 84.5,-197 \" stroke=\"#000000\"/>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"41.5\" y=\"-203.8\">states</text>\n",
+       "<polygon fill=\"#ffff00\" points=\"84.5,-197 84.5,-218 97.5,-218 97.5,-197 84.5,-197\" stroke=\"transparent\"/>\n",
+       "<polyline fill=\"none\" points=\"84.5,-197 97.5,-197 \" stroke=\"#000000\"/>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"87.5\" y=\"-203.8\">0</text>\n",
+       "<polygon fill=\"#ffff00\" points=\"97.5,-197 97.5,-218 110.5,-218 110.5,-197 97.5,-197\" stroke=\"transparent\"/>\n",
+       "<polyline fill=\"none\" points=\"97.5,-197 110.5,-197 \" stroke=\"#000000\"/>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"100.5\" y=\"-203.8\">1</text>\n",
+       "<polygon fill=\"#ffff00\" points=\"110.5,-197 110.5,-218 123.5,-218 123.5,-197 110.5,-197\" stroke=\"transparent\"/>\n",
+       "<polyline fill=\"none\" points=\"110.5,-197 123.5,-197 \" stroke=\"#000000\"/>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"113.5\" y=\"-203.8\">2</text>\n",
+       "<polygon fill=\"#ffff00\" points=\"123.5,-197 123.5,-218 143.5,-218 143.5,-197 123.5,-197\" stroke=\"transparent\"/>\n",
+       "<polyline fill=\"none\" points=\"123.5,-197 143.5,-197 \" stroke=\"#000000\"/>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"130\" y=\"-203.8\">3</text>\n",
+       "<polygon fill=\"none\" points=\"29.5,-176 29.5,-197 84.5,-197 84.5,-176 29.5,-176\" stroke=\"#000000\"/>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"44.5\" y=\"-182.8\">succ</text>\n",
+       "<polygon fill=\"#00ffff\" points=\"84.5,-176 84.5,-197 97.5,-197 97.5,-176 84.5,-176\" stroke=\"transparent\"/>\n",
+       "<polygon fill=\"none\" points=\"84.5,-176 84.5,-197 97.5,-197 97.5,-176 84.5,-176\" stroke=\"#000000\"/>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"87.5\" y=\"-182.8\">1</text>\n",
+       "<polygon fill=\"#00ffff\" points=\"97.5,-176 97.5,-197 110.5,-197 110.5,-176 97.5,-176\" stroke=\"transparent\"/>\n",
+       "<polygon fill=\"none\" points=\"97.5,-176 97.5,-197 110.5,-197 110.5,-176 97.5,-176\" stroke=\"#000000\"/>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"100.5\" y=\"-182.8\">3</text>\n",
+       "<polygon fill=\"#00ffff\" points=\"110.5,-176 110.5,-197 123.5,-197 123.5,-176 110.5,-176\" stroke=\"transparent\"/>\n",
+       "<polygon fill=\"none\" points=\"110.5,-176 110.5,-197 123.5,-197 123.5,-176 110.5,-176\" stroke=\"#000000\"/>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"113.5\" y=\"-182.8\">7</text>\n",
+       "<polygon fill=\"#00ffff\" points=\"123.5,-176 123.5,-197 143.5,-197 143.5,-176 123.5,-176\" stroke=\"transparent\"/>\n",
+       "<polygon fill=\"none\" points=\"123.5,-176 123.5,-197 143.5,-197 143.5,-176 123.5,-176\" stroke=\"#000000\"/>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"130\" y=\"-182.8\">9</text>\n",
+       "<polygon fill=\"none\" points=\"29.5,-155 29.5,-176 84.5,-176 84.5,-155 29.5,-155\" stroke=\"#000000\"/>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"32.5\" y=\"-161.8\">succ_tail</text>\n",
+       "<polygon fill=\"#00ffff\" points=\"84.5,-155 84.5,-176 97.5,-176 97.5,-155 84.5,-155\" stroke=\"transparent\"/>\n",
+       "<polygon fill=\"none\" points=\"84.5,-155 84.5,-176 97.5,-176 97.5,-155 84.5,-155\" stroke=\"#000000\"/>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"87.5\" y=\"-161.8\">8</text>\n",
+       "<polygon fill=\"#00ffff\" points=\"97.5,-155 97.5,-176 110.5,-176 110.5,-155 97.5,-155\" stroke=\"transparent\"/>\n",
+       "<polygon fill=\"none\" points=\"97.5,-155 97.5,-176 110.5,-176 110.5,-155 97.5,-155\" stroke=\"#000000\"/>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"100.5\" y=\"-161.8\">6</text>\n",
+       "<polygon fill=\"#00ffff\" points=\"110.5,-155 110.5,-176 123.5,-176 123.5,-155 110.5,-155\" stroke=\"transparent\"/>\n",
+       "<polygon fill=\"none\" points=\"110.5,-155 110.5,-176 123.5,-176 123.5,-155 110.5,-155\" stroke=\"#000000\"/>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"113.5\" y=\"-161.8\">7</text>\n",
+       "<polygon fill=\"#00ffff\" points=\"123.5,-155 123.5,-176 143.5,-176 143.5,-155 123.5,-155\" stroke=\"transparent\"/>\n",
+       "<polygon fill=\"none\" points=\"123.5,-155 123.5,-176 143.5,-176 143.5,-155 123.5,-155\" stroke=\"#000000\"/>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"126.5\" y=\"-161.8\">10</text>\n",
        "</g>\n",
        "<!-- edges -->\n",
        "<g class=\"node\" id=\"node2\">\n",
        "<title>edges</title>\n",
-       "<polygon fill=\"#00ffff\" points=\"174.5,-229 174.5,-250 235.5,-250 235.5,-229 174.5,-229\" stroke=\"transparent\"/>\n",
-       "<polyline fill=\"none\" points=\"174.5,-229 235.5,-229 \" stroke=\"#000000\"/>\n",
-       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"189.5\" y=\"-235.8\">edges</text>\n",
-       "<polygon fill=\"#00ffff\" points=\"235.5,-229 235.5,-250 282.5,-250 282.5,-229 235.5,-229\" stroke=\"transparent\"/>\n",
-       "<polyline fill=\"none\" points=\"235.5,-229 282.5,-229 \" stroke=\"#000000\"/>\n",
-       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"255.5\" y=\"-235.8\">1</text>\n",
-       "<polygon fill=\"#00ffff\" points=\"282.5,-229 282.5,-250 320.5,-250 320.5,-229 282.5,-229\" stroke=\"transparent\"/>\n",
-       "<polyline fill=\"none\" points=\"282.5,-229 320.5,-229 \" stroke=\"#000000\"/>\n",
-       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"298\" y=\"-235.8\">2</text>\n",
-       "<polygon fill=\"#00ffff\" points=\"320.5,-229 320.5,-250 363.5,-250 363.5,-229 320.5,-229\" stroke=\"transparent\"/>\n",
-       "<polyline fill=\"none\" points=\"320.5,-229 363.5,-229 \" stroke=\"#000000\"/>\n",
-       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"338.5\" y=\"-235.8\">3</text>\n",
-       "<polygon fill=\"#00ffff\" points=\"363.5,-229 363.5,-250 400.5,-250 400.5,-229 363.5,-229\" stroke=\"transparent\"/>\n",
-       "<polyline fill=\"none\" points=\"363.5,-229 400.5,-229 \" stroke=\"#000000\"/>\n",
-       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"378.5\" y=\"-235.8\">4</text>\n",
-       "<polygon fill=\"#00ffff\" points=\"400.5,-229 400.5,-250 420.5,-250 420.5,-229 400.5,-229\" stroke=\"transparent\"/>\n",
-       "<polyline fill=\"none\" points=\"400.5,-229 420.5,-229 \" stroke=\"#000000\"/>\n",
-       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"407\" y=\"-235.8\">5</text>\n",
-       "<polygon fill=\"#00ffff\" points=\"420.5,-229 420.5,-250 447.5,-250 447.5,-229 420.5,-229\" stroke=\"transparent\"/>\n",
-       "<polyline fill=\"none\" points=\"420.5,-229 447.5,-229 \" stroke=\"#000000\"/>\n",
-       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"430.5\" y=\"-235.8\">6</text>\n",
-       "<polygon fill=\"#00ffff\" points=\"447.5,-229 447.5,-250 474.5,-250 474.5,-229 447.5,-229\" stroke=\"transparent\"/>\n",
-       "<polyline fill=\"none\" points=\"447.5,-229 474.5,-229 \" stroke=\"#000000\"/>\n",
-       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"457.5\" y=\"-235.8\">7</text>\n",
-       "<polygon fill=\"#00ffff\" points=\"474.5,-229 474.5,-250 502.5,-250 502.5,-229 474.5,-229\" stroke=\"transparent\"/>\n",
-       "<polyline fill=\"none\" points=\"474.5,-229 502.5,-229 \" stroke=\"#000000\"/>\n",
-       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"485\" y=\"-235.8\">8</text>\n",
-       "<polygon fill=\"none\" points=\"174.5,-208 174.5,-229 235.5,-229 235.5,-208 174.5,-208\" stroke=\"#000000\"/>\n",
-       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"191.5\" y=\"-214.8\">cond</text>\n",
-       "<polygon fill=\"none\" points=\"235.5,-208 235.5,-229 282.5,-229 282.5,-208 235.5,-208\" stroke=\"#000000\"/>\n",
-       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"238.5\" y=\"-214.8\">!a &amp; !b</text>\n",
-       "<polygon fill=\"none\" points=\"282.5,-208 282.5,-229 320.5,-229 320.5,-208 282.5,-208\" stroke=\"#000000\"/>\n",
-       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"285.5\" y=\"-214.8\">a &amp; b</text>\n",
-       "<polygon fill=\"none\" points=\"320.5,-208 320.5,-229 363.5,-229 363.5,-208 320.5,-208\" stroke=\"#000000\"/>\n",
-       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"323.5\" y=\"-214.8\">!a &amp; b</text>\n",
-       "<polygon fill=\"none\" points=\"363.5,-208 363.5,-229 400.5,-229 400.5,-208 363.5,-208\" stroke=\"#000000\"/>\n",
-       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"378.5\" y=\"-214.8\">1</text>\n",
-       "<polygon fill=\"none\" points=\"400.5,-208 400.5,-229 420.5,-229 420.5,-208 400.5,-208\" stroke=\"#000000\"/>\n",
-       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"407\" y=\"-214.8\">1</text>\n",
-       "<polygon fill=\"none\" points=\"420.5,-208 420.5,-229 447.5,-229 447.5,-208 420.5,-208\" stroke=\"#000000\"/>\n",
-       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"430.5\" y=\"-214.8\">a</text>\n",
-       "<polygon fill=\"none\" points=\"447.5,-208 447.5,-229 474.5,-229 474.5,-208 447.5,-208\" stroke=\"#000000\"/>\n",
-       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"455.5\" y=\"-214.8\">!a</text>\n",
-       "<polygon fill=\"none\" points=\"474.5,-208 474.5,-229 502.5,-229 502.5,-208 474.5,-208\" stroke=\"#000000\"/>\n",
-       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"485\" y=\"-214.8\">1</text>\n",
-       "<polygon fill=\"none\" points=\"174.5,-187 174.5,-208 235.5,-208 235.5,-187 174.5,-187\" stroke=\"#000000\"/>\n",
-       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"195.5\" y=\"-193.8\">acc</text>\n",
-       "<polygon fill=\"none\" points=\"235.5,-187 235.5,-208 282.5,-208 282.5,-187 235.5,-187\" stroke=\"#000000\"/>\n",
-       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"248.5\" y=\"-193.8\">{0}</text>\n",
-       "<polygon fill=\"none\" points=\"282.5,-187 282.5,-208 320.5,-208 320.5,-187 282.5,-187\" stroke=\"#000000\"/>\n",
-       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"294.5\" y=\"-193.8\">{}</text>\n",
-       "<polygon fill=\"none\" points=\"320.5,-187 320.5,-208 363.5,-208 363.5,-187 320.5,-187\" stroke=\"#000000\"/>\n",
-       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"331.5\" y=\"-193.8\">{1}</text>\n",
-       "<polygon fill=\"none\" points=\"363.5,-187 363.5,-208 400.5,-208 400.5,-187 363.5,-187\" stroke=\"#000000\"/>\n",
-       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"366.5\" y=\"-193.8\">{0,1}</text>\n",
-       "<polygon fill=\"none\" points=\"400.5,-187 400.5,-208 420.5,-208 420.5,-187 400.5,-187\" stroke=\"#000000\"/>\n",
-       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"403.5\" y=\"-193.8\">{}</text>\n",
-       "<polygon fill=\"none\" points=\"420.5,-187 420.5,-208 447.5,-208 447.5,-187 420.5,-187\" stroke=\"#000000\"/>\n",
-       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"423.5\" y=\"-193.8\">{1}</text>\n",
-       "<polygon fill=\"none\" points=\"447.5,-187 447.5,-208 474.5,-208 474.5,-187 447.5,-187\" stroke=\"#000000\"/>\n",
-       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"450.5\" y=\"-193.8\">{0}</text>\n",
-       "<polygon fill=\"none\" points=\"474.5,-187 474.5,-208 502.5,-208 502.5,-187 474.5,-187\" stroke=\"#000000\"/>\n",
-       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"478\" y=\"-193.8\">{0}</text>\n",
-       "<polygon fill=\"none\" points=\"174.5,-166 174.5,-187 235.5,-187 235.5,-166 174.5,-166\" stroke=\"#000000\"/>\n",
-       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"197\" y=\"-172.8\">dst</text>\n",
-       "<polygon fill=\"#ffff00\" points=\"235.5,-166 235.5,-187 282.5,-187 282.5,-166 235.5,-166\" stroke=\"transparent\"/>\n",
-       "<polygon fill=\"none\" points=\"235.5,-166 235.5,-187 282.5,-187 282.5,-166 235.5,-166\" stroke=\"#000000\"/>\n",
-       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"255.5\" y=\"-172.8\">1</text>\n",
-       "<polygon fill=\"#ffff00\" points=\"282.5,-166 282.5,-187 320.5,-187 320.5,-166 282.5,-166\" stroke=\"transparent\"/>\n",
-       "<polygon fill=\"none\" points=\"282.5,-166 282.5,-187 320.5,-187 320.5,-166 282.5,-166\" stroke=\"#000000\"/>\n",
-       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"298\" y=\"-172.8\">0</text>\n",
-       "<polygon fill=\"#ffff00\" points=\"320.5,-166 320.5,-187 363.5,-187 363.5,-166 320.5,-166\" stroke=\"transparent\"/>\n",
-       "<polygon fill=\"none\" points=\"320.5,-166 320.5,-187 363.5,-187 363.5,-166 320.5,-166\" stroke=\"#000000\"/>\n",
-       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"338.5\" y=\"-172.8\">1</text>\n",
-       "<polygon fill=\"#ffff00\" points=\"363.5,-166 363.5,-187 400.5,-187 400.5,-166 363.5,-166\" stroke=\"transparent\"/>\n",
-       "<polygon fill=\"none\" points=\"363.5,-166 363.5,-187 400.5,-187 400.5,-166 363.5,-166\" stroke=\"#000000\"/>\n",
-       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"378.5\" y=\"-172.8\">1</text>\n",
-       "<polygon fill=\"#ffff00\" points=\"400.5,-166 400.5,-187 420.5,-187 420.5,-166 400.5,-166\" stroke=\"transparent\"/>\n",
-       "<polygon fill=\"none\" points=\"400.5,-166 400.5,-187 420.5,-187 420.5,-166 400.5,-166\" stroke=\"#000000\"/>\n",
-       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"407\" y=\"-172.8\">0</text>\n",
-       "<polygon fill=\"#ffc0cb\" points=\"420.5,-166 420.5,-187 447.5,-187 447.5,-166 420.5,-166\" stroke=\"transparent\"/>\n",
-       "<polygon fill=\"none\" points=\"420.5,-166 420.5,-187 447.5,-187 447.5,-166 420.5,-166\" stroke=\"#000000\"/>\n",
-       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"426.5\" y=\"-172.8\">~0</text>\n",
-       "<polygon fill=\"#ffc0cb\" points=\"447.5,-166 447.5,-187 474.5,-187 474.5,-166 447.5,-166\" stroke=\"transparent\"/>\n",
-       "<polygon fill=\"none\" points=\"447.5,-166 447.5,-187 474.5,-187 474.5,-166 447.5,-166\" stroke=\"#000000\"/>\n",
-       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"453.5\" y=\"-172.8\">~3</text>\n",
-       "<polygon fill=\"#ffc0cb\" points=\"474.5,-166 474.5,-187 502.5,-187 502.5,-166 474.5,-166\" stroke=\"transparent\"/>\n",
-       "<polygon fill=\"none\" points=\"474.5,-166 474.5,-187 502.5,-187 502.5,-166 474.5,-166\" stroke=\"#000000\"/>\n",
-       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"477.5\" y=\"-172.8\">~10</text>\n",
-       "<polygon fill=\"none\" points=\"174.5,-145 174.5,-166 235.5,-166 235.5,-145 174.5,-145\" stroke=\"#000000\"/>\n",
-       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"177.5\" y=\"-151.8\">next_succ</text>\n",
-       "<polygon fill=\"#00ffff\" points=\"235.5,-145 235.5,-166 282.5,-166 282.5,-145 235.5,-145\" stroke=\"transparent\"/>\n",
-       "<polygon fill=\"none\" points=\"235.5,-145 235.5,-166 282.5,-166 282.5,-145 235.5,-145\" stroke=\"#000000\"/>\n",
-       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"255.5\" y=\"-151.8\">6</text>\n",
-       "<polygon fill=\"#00ffff\" points=\"282.5,-145 282.5,-166 320.5,-166 320.5,-145 282.5,-145\" stroke=\"transparent\"/>\n",
-       "<polygon fill=\"none\" points=\"282.5,-145 282.5,-166 320.5,-166 320.5,-145 282.5,-145\" stroke=\"#000000\"/>\n",
-       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"298\" y=\"-151.8\">3</text>\n",
-       "<polygon fill=\"#00ffff\" points=\"320.5,-145 320.5,-166 363.5,-166 363.5,-145 320.5,-145\" stroke=\"transparent\"/>\n",
-       "<polygon fill=\"none\" points=\"320.5,-145 320.5,-166 363.5,-166 363.5,-145 320.5,-145\" stroke=\"#000000\"/>\n",
-       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"338.5\" y=\"-151.8\">4</text>\n",
-       "<polygon fill=\"none\" points=\"363.5,-145 363.5,-166 400.5,-166 400.5,-145 363.5,-145\" stroke=\"#000000\"/>\n",
-       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"378.5\" y=\"-151.8\">0</text>\n",
-       "<polygon fill=\"none\" points=\"400.5,-145 400.5,-166 420.5,-166 420.5,-145 400.5,-145\" stroke=\"#000000\"/>\n",
-       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"407\" y=\"-151.8\">0</text>\n",
-       "<polygon fill=\"none\" points=\"420.5,-145 420.5,-166 447.5,-166 447.5,-145 420.5,-145\" stroke=\"#000000\"/>\n",
-       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"430.5\" y=\"-151.8\">0</text>\n",
-       "<polygon fill=\"#00ffff\" points=\"447.5,-145 447.5,-166 474.5,-166 474.5,-145 447.5,-145\" stroke=\"transparent\"/>\n",
-       "<polygon fill=\"none\" points=\"447.5,-145 447.5,-166 474.5,-166 474.5,-145 447.5,-145\" stroke=\"#000000\"/>\n",
-       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"457.5\" y=\"-151.8\">8</text>\n",
-       "<polygon fill=\"none\" points=\"474.5,-145 474.5,-166 502.5,-166 502.5,-145 474.5,-145\" stroke=\"#000000\"/>\n",
-       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"485\" y=\"-151.8\">0</text>\n",
-       "<polygon fill=\"none\" points=\"174.5,-124 174.5,-145 235.5,-145 235.5,-124 174.5,-124\" stroke=\"#000000\"/>\n",
-       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"197\" y=\"-130.8\">src</text>\n",
-       "<polygon fill=\"#ffff00\" points=\"235.5,-124 235.5,-145 282.5,-145 282.5,-124 235.5,-124\" stroke=\"transparent\"/>\n",
-       "<polygon fill=\"none\" points=\"235.5,-124 235.5,-145 282.5,-145 282.5,-124 235.5,-124\" stroke=\"#000000\"/>\n",
-       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"255.5\" y=\"-130.8\">0</text>\n",
-       "<polygon fill=\"#ffff00\" points=\"282.5,-124 282.5,-145 320.5,-145 320.5,-124 282.5,-124\" stroke=\"transparent\"/>\n",
-       "<polygon fill=\"none\" points=\"282.5,-124 282.5,-145 320.5,-145 320.5,-124 282.5,-124\" stroke=\"#000000\"/>\n",
-       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"298\" y=\"-130.8\">1</text>\n",
-       "<polygon fill=\"#ffff00\" points=\"320.5,-124 320.5,-145 363.5,-145 363.5,-124 320.5,-124\" stroke=\"transparent\"/>\n",
-       "<polygon fill=\"none\" points=\"320.5,-124 320.5,-145 363.5,-145 363.5,-124 320.5,-124\" stroke=\"#000000\"/>\n",
-       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"338.5\" y=\"-130.8\">1</text>\n",
-       "<polygon fill=\"#ffff00\" points=\"363.5,-124 363.5,-145 400.5,-145 400.5,-124 363.5,-124\" stroke=\"transparent\"/>\n",
-       "<polygon fill=\"none\" points=\"363.5,-124 363.5,-145 400.5,-145 400.5,-124 363.5,-124\" stroke=\"#000000\"/>\n",
-       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"378.5\" y=\"-130.8\">1</text>\n",
-       "<polygon fill=\"#ffff00\" points=\"400.5,-124 400.5,-145 420.5,-145 420.5,-124 400.5,-124\" stroke=\"transparent\"/>\n",
-       "<polygon fill=\"none\" points=\"400.5,-124 400.5,-145 420.5,-145 420.5,-124 400.5,-124\" stroke=\"#000000\"/>\n",
-       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"407\" y=\"-130.8\">2</text>\n",
-       "<polygon fill=\"#ffff00\" points=\"420.5,-124 420.5,-145 447.5,-145 447.5,-124 420.5,-124\" stroke=\"transparent\"/>\n",
-       "<polygon fill=\"none\" points=\"420.5,-124 420.5,-145 447.5,-145 447.5,-124 420.5,-124\" stroke=\"#000000\"/>\n",
-       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"430.5\" y=\"-130.8\">0</text>\n",
-       "<polygon fill=\"#ffff00\" points=\"447.5,-124 447.5,-145 474.5,-145 474.5,-124 447.5,-124\" stroke=\"transparent\"/>\n",
-       "<polygon fill=\"none\" points=\"447.5,-124 447.5,-145 474.5,-145 474.5,-124 447.5,-124\" stroke=\"#000000\"/>\n",
-       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"457.5\" y=\"-130.8\">3</text>\n",
-       "<polygon fill=\"#ffff00\" points=\"474.5,-124 474.5,-145 502.5,-145 502.5,-124 474.5,-124\" stroke=\"transparent\"/>\n",
-       "<polygon fill=\"none\" points=\"474.5,-124 474.5,-145 502.5,-145 502.5,-124 474.5,-124\" stroke=\"#000000\"/>\n",
-       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"485\" y=\"-130.8\">3</text>\n",
+       "<polygon fill=\"#00ffff\" points=\"178.5,-229 178.5,-250 239.5,-250 239.5,-229 178.5,-229\" stroke=\"transparent\"/>\n",
+       "<polyline fill=\"none\" points=\"178.5,-229 239.5,-229 \" stroke=\"#000000\"/>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"193.5\" y=\"-235.8\">edges</text>\n",
+       "<polygon fill=\"#00ffff\" points=\"239.5,-229 239.5,-250 282.5,-250 282.5,-229 239.5,-229\" stroke=\"transparent\"/>\n",
+       "<polyline fill=\"none\" points=\"239.5,-229 282.5,-229 \" stroke=\"#000000\"/>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"257.5\" y=\"-235.8\">1</text>\n",
+       "<polygon fill=\"#00ffff\" points=\"282.5,-229 282.5,-250 329.5,-250 329.5,-229 282.5,-229\" stroke=\"transparent\"/>\n",
+       "<polyline fill=\"none\" points=\"282.5,-229 329.5,-229 \" stroke=\"#000000\"/>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"302.5\" y=\"-235.8\">2</text>\n",
+       "<polygon fill=\"#00ffff\" points=\"329.5,-229 329.5,-250 372.5,-250 372.5,-229 329.5,-229\" stroke=\"transparent\"/>\n",
+       "<polyline fill=\"none\" points=\"329.5,-229 372.5,-229 \" stroke=\"#000000\"/>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"347.5\" y=\"-235.8\">3</text>\n",
+       "<polygon fill=\"#00ffff\" points=\"372.5,-229 372.5,-250 419.5,-250 419.5,-229 372.5,-229\" stroke=\"transparent\"/>\n",
+       "<polyline fill=\"none\" points=\"372.5,-229 419.5,-229 \" stroke=\"#000000\"/>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"392.5\" y=\"-235.8\">4</text>\n",
+       "<polygon fill=\"#00ffff\" points=\"419.5,-229 419.5,-250 462.5,-250 462.5,-229 419.5,-229\" stroke=\"transparent\"/>\n",
+       "<polyline fill=\"none\" points=\"419.5,-229 462.5,-229 \" stroke=\"#000000\"/>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"437.5\" y=\"-235.8\">5</text>\n",
+       "<polygon fill=\"#00ffff\" points=\"462.5,-229 462.5,-250 499.5,-250 499.5,-229 462.5,-229\" stroke=\"transparent\"/>\n",
+       "<polyline fill=\"none\" points=\"462.5,-229 499.5,-229 \" stroke=\"#000000\"/>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"477.5\" y=\"-235.8\">6</text>\n",
+       "<polygon fill=\"#00ffff\" points=\"499.5,-229 499.5,-250 519.5,-250 519.5,-229 499.5,-229\" stroke=\"transparent\"/>\n",
+       "<polyline fill=\"none\" points=\"499.5,-229 519.5,-229 \" stroke=\"#000000\"/>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"506\" y=\"-235.8\">7</text>\n",
+       "<polygon fill=\"#00ffff\" points=\"519.5,-229 519.5,-250 546.5,-250 546.5,-229 519.5,-229\" stroke=\"transparent\"/>\n",
+       "<polyline fill=\"none\" points=\"519.5,-229 546.5,-229 \" stroke=\"#000000\"/>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"529.5\" y=\"-235.8\">8</text>\n",
+       "<polygon fill=\"#00ffff\" points=\"546.5,-229 546.5,-250 573.5,-250 573.5,-229 546.5,-229\" stroke=\"transparent\"/>\n",
+       "<polyline fill=\"none\" points=\"546.5,-229 573.5,-229 \" stroke=\"#000000\"/>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"556.5\" y=\"-235.8\">9</text>\n",
+       "<polygon fill=\"#00ffff\" points=\"573.5,-229 573.5,-250 601.5,-250 601.5,-229 573.5,-229\" stroke=\"transparent\"/>\n",
+       "<polyline fill=\"none\" points=\"573.5,-229 601.5,-229 \" stroke=\"#000000\"/>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"580.5\" y=\"-235.8\">10</text>\n",
+       "<polygon fill=\"none\" points=\"178.5,-208 178.5,-229 239.5,-229 239.5,-208 178.5,-208\" stroke=\"#000000\"/>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"195.5\" y=\"-214.8\">cond</text>\n",
+       "<polygon fill=\"none\" points=\"239.5,-208 239.5,-229 282.5,-229 282.5,-208 239.5,-208\" stroke=\"#000000\"/>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"242.5\" y=\"-214.8\">a &amp; !b</text>\n",
+       "<polygon fill=\"none\" points=\"282.5,-208 282.5,-229 329.5,-229 329.5,-208 282.5,-208\" stroke=\"#000000\"/>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"285.5\" y=\"-214.8\">!a &amp; !b</text>\n",
+       "<polygon fill=\"none\" points=\"329.5,-208 329.5,-229 372.5,-229 372.5,-208 329.5,-208\" stroke=\"#000000\"/>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"332.5\" y=\"-214.8\">a &amp; !b</text>\n",
+       "<polygon fill=\"none\" points=\"372.5,-208 372.5,-229 419.5,-229 419.5,-208 372.5,-208\" stroke=\"#000000\"/>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"375.5\" y=\"-214.8\">!a &amp; !b</text>\n",
+       "<polygon fill=\"none\" points=\"419.5,-208 419.5,-229 462.5,-229 462.5,-208 419.5,-208\" stroke=\"#000000\"/>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"422.5\" y=\"-214.8\">!a &amp; b</text>\n",
+       "<polygon fill=\"none\" points=\"462.5,-208 462.5,-229 499.5,-229 499.5,-208 462.5,-208\" stroke=\"#000000\"/>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"477.5\" y=\"-214.8\">1</text>\n",
+       "<polygon fill=\"none\" points=\"499.5,-208 499.5,-229 519.5,-229 519.5,-208 499.5,-208\" stroke=\"#000000\"/>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"506\" y=\"-214.8\">1</text>\n",
+       "<polygon fill=\"none\" points=\"519.5,-208 519.5,-229 546.5,-229 546.5,-208 519.5,-208\" stroke=\"#000000\"/>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"529.5\" y=\"-214.8\">a</text>\n",
+       "<polygon fill=\"none\" points=\"546.5,-208 546.5,-229 573.5,-229 573.5,-208 546.5,-208\" stroke=\"#000000\"/>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"554.5\" y=\"-214.8\">!a</text>\n",
+       "<polygon fill=\"none\" points=\"573.5,-208 573.5,-229 601.5,-229 601.5,-208 573.5,-208\" stroke=\"#000000\"/>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"584\" y=\"-214.8\">1</text>\n",
+       "<polygon fill=\"none\" points=\"178.5,-187 178.5,-208 239.5,-208 239.5,-187 178.5,-187\" stroke=\"#000000\"/>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"199.5\" y=\"-193.8\">acc</text>\n",
+       "<polygon fill=\"none\" points=\"239.5,-187 239.5,-208 282.5,-208 282.5,-187 239.5,-187\" stroke=\"#000000\"/>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"250.5\" y=\"-193.8\">{0}</text>\n",
+       "<polygon fill=\"none\" points=\"282.5,-187 282.5,-208 329.5,-208 329.5,-187 282.5,-187\" stroke=\"#000000\"/>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"295.5\" y=\"-193.8\">{0}</text>\n",
+       "<polygon fill=\"none\" points=\"329.5,-187 329.5,-208 372.5,-208 372.5,-187 329.5,-187\" stroke=\"#000000\"/>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"340.5\" y=\"-193.8\">{0}</text>\n",
+       "<polygon fill=\"none\" points=\"372.5,-187 372.5,-208 419.5,-208 419.5,-187 372.5,-187\" stroke=\"#000000\"/>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"385.5\" y=\"-193.8\">{0}</text>\n",
+       "<polygon fill=\"none\" points=\"419.5,-187 419.5,-208 462.5,-208 462.5,-187 419.5,-187\" stroke=\"#000000\"/>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"430.5\" y=\"-193.8\">{1}</text>\n",
+       "<polygon fill=\"none\" points=\"462.5,-187 462.5,-208 499.5,-208 499.5,-187 462.5,-187\" stroke=\"#000000\"/>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"465.5\" y=\"-193.8\">{0,1}</text>\n",
+       "<polygon fill=\"none\" points=\"499.5,-187 499.5,-208 519.5,-208 519.5,-187 499.5,-187\" stroke=\"#000000\"/>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"502.5\" y=\"-193.8\">{}</text>\n",
+       "<polygon fill=\"none\" points=\"519.5,-187 519.5,-208 546.5,-208 546.5,-187 519.5,-187\" stroke=\"#000000\"/>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"522.5\" y=\"-193.8\">{1}</text>\n",
+       "<polygon fill=\"none\" points=\"546.5,-187 546.5,-208 573.5,-208 573.5,-187 546.5,-187\" stroke=\"#000000\"/>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"549.5\" y=\"-193.8\">{0}</text>\n",
+       "<polygon fill=\"none\" points=\"573.5,-187 573.5,-208 601.5,-208 601.5,-187 573.5,-187\" stroke=\"#000000\"/>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"577\" y=\"-193.8\">{0}</text>\n",
+       "<polygon fill=\"none\" points=\"178.5,-166 178.5,-187 239.5,-187 239.5,-166 178.5,-166\" stroke=\"#000000\"/>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"201\" y=\"-172.8\">dst</text>\n",
+       "<polygon fill=\"#ffff00\" points=\"239.5,-166 239.5,-187 282.5,-187 282.5,-166 239.5,-166\" stroke=\"transparent\"/>\n",
+       "<polygon fill=\"none\" points=\"239.5,-166 239.5,-187 282.5,-187 282.5,-166 239.5,-166\" stroke=\"#000000\"/>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"257.5\" y=\"-172.8\">0</text>\n",
+       "<polygon fill=\"#ffff00\" points=\"282.5,-166 282.5,-187 329.5,-187 329.5,-166 282.5,-166\" stroke=\"transparent\"/>\n",
+       "<polygon fill=\"none\" points=\"282.5,-166 282.5,-187 329.5,-187 329.5,-166 282.5,-166\" stroke=\"#000000\"/>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"302.5\" y=\"-172.8\">1</text>\n",
+       "<polygon fill=\"#ffff00\" points=\"329.5,-166 329.5,-187 372.5,-187 372.5,-166 329.5,-166\" stroke=\"transparent\"/>\n",
+       "<polygon fill=\"none\" points=\"329.5,-166 329.5,-187 372.5,-187 372.5,-166 329.5,-166\" stroke=\"#000000\"/>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"347.5\" y=\"-172.8\">0</text>\n",
+       "<polygon fill=\"#ffff00\" points=\"372.5,-166 372.5,-187 419.5,-187 419.5,-166 372.5,-166\" stroke=\"transparent\"/>\n",
+       "<polygon fill=\"none\" points=\"372.5,-166 372.5,-187 419.5,-187 419.5,-166 372.5,-166\" stroke=\"#000000\"/>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"392.5\" y=\"-172.8\">1</text>\n",
+       "<polygon fill=\"#ffff00\" points=\"419.5,-166 419.5,-187 462.5,-187 462.5,-166 419.5,-166\" stroke=\"transparent\"/>\n",
+       "<polygon fill=\"none\" points=\"419.5,-166 419.5,-187 462.5,-187 462.5,-166 419.5,-166\" stroke=\"#000000\"/>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"437.5\" y=\"-172.8\">1</text>\n",
+       "<polygon fill=\"#ffff00\" points=\"462.5,-166 462.5,-187 499.5,-187 499.5,-166 462.5,-166\" stroke=\"transparent\"/>\n",
+       "<polygon fill=\"none\" points=\"462.5,-166 462.5,-187 499.5,-187 499.5,-166 462.5,-166\" stroke=\"#000000\"/>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"477.5\" y=\"-172.8\">1</text>\n",
+       "<polygon fill=\"#ffff00\" points=\"499.5,-166 499.5,-187 519.5,-187 519.5,-166 499.5,-166\" stroke=\"transparent\"/>\n",
+       "<polygon fill=\"none\" points=\"499.5,-166 499.5,-187 519.5,-187 519.5,-166 499.5,-166\" stroke=\"#000000\"/>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"506\" y=\"-172.8\">0</text>\n",
+       "<polygon fill=\"#ffc0cb\" points=\"519.5,-166 519.5,-187 546.5,-187 546.5,-166 519.5,-166\" stroke=\"transparent\"/>\n",
+       "<polygon fill=\"none\" points=\"519.5,-166 519.5,-187 546.5,-187 546.5,-166 519.5,-166\" stroke=\"#000000\"/>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"525.5\" y=\"-172.8\">~0</text>\n",
+       "<polygon fill=\"#ffc0cb\" points=\"546.5,-166 546.5,-187 573.5,-187 573.5,-166 546.5,-166\" stroke=\"transparent\"/>\n",
+       "<polygon fill=\"none\" points=\"546.5,-166 546.5,-187 573.5,-187 573.5,-166 546.5,-166\" stroke=\"#000000\"/>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"552.5\" y=\"-172.8\">~3</text>\n",
+       "<polygon fill=\"#ffc0cb\" points=\"573.5,-166 573.5,-187 601.5,-187 601.5,-166 573.5,-166\" stroke=\"transparent\"/>\n",
+       "<polygon fill=\"none\" points=\"573.5,-166 573.5,-187 601.5,-187 601.5,-166 573.5,-166\" stroke=\"#000000\"/>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"576.5\" y=\"-172.8\">~10</text>\n",
+       "<polygon fill=\"none\" points=\"178.5,-145 178.5,-166 239.5,-166 239.5,-145 178.5,-145\" stroke=\"#000000\"/>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"181.5\" y=\"-151.8\">next_succ</text>\n",
+       "<polygon fill=\"#00ffff\" points=\"239.5,-145 239.5,-166 282.5,-166 282.5,-145 239.5,-145\" stroke=\"transparent\"/>\n",
+       "<polygon fill=\"none\" points=\"239.5,-145 239.5,-166 282.5,-166 282.5,-145 239.5,-145\" stroke=\"#000000\"/>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"257.5\" y=\"-151.8\">2</text>\n",
+       "<polygon fill=\"#00ffff\" points=\"282.5,-145 282.5,-166 329.5,-166 329.5,-145 282.5,-145\" stroke=\"transparent\"/>\n",
+       "<polygon fill=\"none\" points=\"282.5,-145 282.5,-166 329.5,-166 329.5,-145 282.5,-145\" stroke=\"#000000\"/>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"302.5\" y=\"-151.8\">8</text>\n",
+       "<polygon fill=\"#00ffff\" points=\"329.5,-145 329.5,-166 372.5,-166 372.5,-145 329.5,-145\" stroke=\"transparent\"/>\n",
+       "<polygon fill=\"none\" points=\"329.5,-145 329.5,-166 372.5,-166 372.5,-145 329.5,-145\" stroke=\"#000000\"/>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"347.5\" y=\"-151.8\">4</text>\n",
+       "<polygon fill=\"#00ffff\" points=\"372.5,-145 372.5,-166 419.5,-166 419.5,-145 372.5,-145\" stroke=\"transparent\"/>\n",
+       "<polygon fill=\"none\" points=\"372.5,-145 372.5,-166 419.5,-166 419.5,-145 372.5,-145\" stroke=\"#000000\"/>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"392.5\" y=\"-151.8\">5</text>\n",
+       "<polygon fill=\"#00ffff\" points=\"419.5,-145 419.5,-166 462.5,-166 462.5,-145 419.5,-145\" stroke=\"transparent\"/>\n",
+       "<polygon fill=\"none\" points=\"419.5,-145 419.5,-166 462.5,-166 462.5,-145 419.5,-145\" stroke=\"#000000\"/>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"437.5\" y=\"-151.8\">6</text>\n",
+       "<polygon fill=\"none\" points=\"462.5,-145 462.5,-166 499.5,-166 499.5,-145 462.5,-145\" stroke=\"#000000\"/>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"477.5\" y=\"-151.8\">0</text>\n",
+       "<polygon fill=\"none\" points=\"499.5,-145 499.5,-166 519.5,-166 519.5,-145 499.5,-145\" stroke=\"#000000\"/>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"506\" y=\"-151.8\">0</text>\n",
+       "<polygon fill=\"none\" points=\"519.5,-145 519.5,-166 546.5,-166 546.5,-145 519.5,-145\" stroke=\"#000000\"/>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"529.5\" y=\"-151.8\">0</text>\n",
+       "<polygon fill=\"#00ffff\" points=\"546.5,-145 546.5,-166 573.5,-166 573.5,-145 546.5,-145\" stroke=\"transparent\"/>\n",
+       "<polygon fill=\"none\" points=\"546.5,-145 546.5,-166 573.5,-166 573.5,-145 546.5,-145\" stroke=\"#000000\"/>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"553\" y=\"-151.8\">10</text>\n",
+       "<polygon fill=\"none\" points=\"573.5,-145 573.5,-166 601.5,-166 601.5,-145 573.5,-145\" stroke=\"#000000\"/>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"584\" y=\"-151.8\">0</text>\n",
+       "<polygon fill=\"none\" points=\"178.5,-124 178.5,-145 239.5,-145 239.5,-124 178.5,-124\" stroke=\"#000000\"/>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"201\" y=\"-130.8\">src</text>\n",
+       "<polygon fill=\"#ffff00\" points=\"239.5,-124 239.5,-145 282.5,-145 282.5,-124 239.5,-124\" stroke=\"transparent\"/>\n",
+       "<polygon fill=\"none\" points=\"239.5,-124 239.5,-145 282.5,-145 282.5,-124 239.5,-124\" stroke=\"#000000\"/>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"257.5\" y=\"-130.8\">0</text>\n",
+       "<polygon fill=\"#ffff00\" points=\"282.5,-124 282.5,-145 329.5,-145 329.5,-124 282.5,-124\" stroke=\"transparent\"/>\n",
+       "<polygon fill=\"none\" points=\"282.5,-124 282.5,-145 329.5,-145 329.5,-124 282.5,-124\" stroke=\"#000000\"/>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"302.5\" y=\"-130.8\">0</text>\n",
+       "<polygon fill=\"#ffff00\" points=\"329.5,-124 329.5,-145 372.5,-145 372.5,-124 329.5,-124\" stroke=\"transparent\"/>\n",
+       "<polygon fill=\"none\" points=\"329.5,-124 329.5,-145 372.5,-145 372.5,-124 329.5,-124\" stroke=\"#000000\"/>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"347.5\" y=\"-130.8\">1</text>\n",
+       "<polygon fill=\"#ffff00\" points=\"372.5,-124 372.5,-145 419.5,-145 419.5,-124 372.5,-124\" stroke=\"transparent\"/>\n",
+       "<polygon fill=\"none\" points=\"372.5,-124 372.5,-145 419.5,-145 419.5,-124 372.5,-124\" stroke=\"#000000\"/>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"392.5\" y=\"-130.8\">1</text>\n",
+       "<polygon fill=\"#ffff00\" points=\"419.5,-124 419.5,-145 462.5,-145 462.5,-124 419.5,-124\" stroke=\"transparent\"/>\n",
+       "<polygon fill=\"none\" points=\"419.5,-124 419.5,-145 462.5,-145 462.5,-124 419.5,-124\" stroke=\"#000000\"/>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"437.5\" y=\"-130.8\">1</text>\n",
+       "<polygon fill=\"#ffff00\" points=\"462.5,-124 462.5,-145 499.5,-145 499.5,-124 462.5,-124\" stroke=\"transparent\"/>\n",
+       "<polygon fill=\"none\" points=\"462.5,-124 462.5,-145 499.5,-145 499.5,-124 462.5,-124\" stroke=\"#000000\"/>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"477.5\" y=\"-130.8\">1</text>\n",
+       "<polygon fill=\"#ffff00\" points=\"499.5,-124 499.5,-145 519.5,-145 519.5,-124 499.5,-124\" stroke=\"transparent\"/>\n",
+       "<polygon fill=\"none\" points=\"499.5,-124 499.5,-145 519.5,-145 519.5,-124 499.5,-124\" stroke=\"#000000\"/>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"506\" y=\"-130.8\">2</text>\n",
+       "<polygon fill=\"#ffff00\" points=\"519.5,-124 519.5,-145 546.5,-145 546.5,-124 519.5,-124\" stroke=\"transparent\"/>\n",
+       "<polygon fill=\"none\" points=\"519.5,-124 519.5,-145 546.5,-145 546.5,-124 519.5,-124\" stroke=\"#000000\"/>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"529.5\" y=\"-130.8\">0</text>\n",
+       "<polygon fill=\"#ffff00\" points=\"546.5,-124 546.5,-145 573.5,-145 573.5,-124 546.5,-124\" stroke=\"transparent\"/>\n",
+       "<polygon fill=\"none\" points=\"546.5,-124 546.5,-145 573.5,-145 573.5,-124 546.5,-124\" stroke=\"#000000\"/>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"556.5\" y=\"-130.8\">3</text>\n",
+       "<polygon fill=\"#ffff00\" points=\"573.5,-124 573.5,-145 601.5,-145 601.5,-124 573.5,-124\" stroke=\"transparent\"/>\n",
+       "<polygon fill=\"none\" points=\"573.5,-124 573.5,-145 601.5,-145 601.5,-124 573.5,-124\" stroke=\"#000000\"/>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"584\" y=\"-130.8\">3</text>\n",
        "</g>\n",
        "<!-- dests -->\n",
        "<g class=\"node\" id=\"node3\">\n",
        "<title>dests</title>\n",
-       "<polygon fill=\"#ffc0cb\" points=\"537.5,-187 537.5,-208 586.5,-208 586.5,-187 537.5,-187\" stroke=\"transparent\"/>\n",
-       "<polyline fill=\"none\" points=\"537.5,-187 586.5,-187 \" stroke=\"#000000\"/>\n",
-       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"548\" y=\"-193.8\">dests</text>\n",
-       "<polygon fill=\"#ffc0cb\" points=\"586.5,-187 586.5,-208 607.5,-208 607.5,-187 586.5,-187\" stroke=\"transparent\"/>\n",
-       "<polyline fill=\"none\" points=\"586.5,-187 607.5,-187 \" stroke=\"#000000\"/>\n",
-       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"589.5\" y=\"-193.8\">~0</text>\n",
-       "<polyline fill=\"none\" points=\"607.5,-187 620.5,-187 \" stroke=\"#000000\"/>\n",
-       "<polyline fill=\"none\" points=\"620.5,-187 633.5,-187 \" stroke=\"#000000\"/>\n",
-       "<polygon fill=\"#ffc0cb\" points=\"633.5,-187 633.5,-208 654.5,-208 654.5,-187 633.5,-187\" stroke=\"transparent\"/>\n",
-       "<polyline fill=\"none\" points=\"633.5,-187 654.5,-187 \" stroke=\"#000000\"/>\n",
-       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"636.5\" y=\"-193.8\">~3</text>\n",
-       "<polyline fill=\"none\" points=\"654.5,-187 667.5,-187 \" stroke=\"#000000\"/>\n",
-       "<polyline fill=\"none\" points=\"667.5,-187 680.5,-187 \" stroke=\"#000000\"/>\n",
-       "<polygon fill=\"#ffc0cb\" points=\"680.5,-187 680.5,-208 701.5,-208 701.5,-187 680.5,-187\" stroke=\"transparent\"/>\n",
-       "<polyline fill=\"none\" points=\"680.5,-187 701.5,-187 \" stroke=\"#000000\"/>\n",
-       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"683.5\" y=\"-193.8\">~6</text>\n",
-       "<polyline fill=\"none\" points=\"701.5,-187 714.5,-187 \" stroke=\"#000000\"/>\n",
-       "<polyline fill=\"none\" points=\"714.5,-187 727.5,-187 \" stroke=\"#000000\"/>\n",
-       "<polyline fill=\"none\" points=\"727.5,-187 740.5,-187 \" stroke=\"#000000\"/>\n",
-       "<polygon fill=\"#ffc0cb\" points=\"740.5,-187 740.5,-208 768.5,-208 768.5,-187 740.5,-187\" stroke=\"transparent\"/>\n",
-       "<polyline fill=\"none\" points=\"740.5,-187 768.5,-187 \" stroke=\"#000000\"/>\n",
-       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"743.5\" y=\"-193.8\">~10</text>\n",
-       "<polyline fill=\"none\" points=\"768.5,-187 781.5,-187 \" stroke=\"#000000\"/>\n",
-       "<polyline fill=\"none\" points=\"781.5,-187 794.5,-187 \" stroke=\"#000000\"/>\n",
-       "<polygon fill=\"none\" points=\"537.5,-166 537.5,-187 586.5,-187 586.5,-166 537.5,-166\" stroke=\"#000000\"/>\n",
-       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"540.5\" y=\"-172.8\">#cnt/dst</text>\n",
-       "<polygon fill=\"none\" points=\"586.5,-166 586.5,-187 607.5,-187 607.5,-166 586.5,-166\" stroke=\"#000000\"/>\n",
-       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"590\" y=\"-172.8\">#2</text>\n",
-       "<polygon fill=\"#ffff00\" points=\"607.5,-166 607.5,-187 620.5,-187 620.5,-166 607.5,-166\" stroke=\"transparent\"/>\n",
-       "<polygon fill=\"none\" points=\"607.5,-166 607.5,-187 620.5,-187 620.5,-166 607.5,-166\" stroke=\"#000000\"/>\n",
-       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"610.5\" y=\"-172.8\">0</text>\n",
-       "<polygon fill=\"#ffff00\" points=\"620.5,-166 620.5,-187 633.5,-187 633.5,-166 620.5,-166\" stroke=\"transparent\"/>\n",
-       "<polygon fill=\"none\" points=\"620.5,-166 620.5,-187 633.5,-187 633.5,-166 620.5,-166\" stroke=\"#000000\"/>\n",
-       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"623.5\" y=\"-172.8\">3</text>\n",
-       "<polygon fill=\"none\" points=\"633.5,-166 633.5,-187 654.5,-187 654.5,-166 633.5,-166\" stroke=\"#000000\"/>\n",
-       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"637\" y=\"-172.8\">#2</text>\n",
-       "<polygon fill=\"#ffff00\" points=\"654.5,-166 654.5,-187 667.5,-187 667.5,-166 654.5,-166\" stroke=\"transparent\"/>\n",
-       "<polygon fill=\"none\" points=\"654.5,-166 654.5,-187 667.5,-187 667.5,-166 654.5,-166\" stroke=\"#000000\"/>\n",
-       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"657.5\" y=\"-172.8\">0</text>\n",
-       "<polygon fill=\"#ffff00\" points=\"667.5,-166 667.5,-187 680.5,-187 680.5,-166 667.5,-166\" stroke=\"transparent\"/>\n",
-       "<polygon fill=\"none\" points=\"667.5,-166 667.5,-187 680.5,-187 680.5,-166 667.5,-166\" stroke=\"#000000\"/>\n",
-       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"670.5\" y=\"-172.8\">1</text>\n",
-       "<polygon fill=\"none\" points=\"680.5,-166 680.5,-187 701.5,-187 701.5,-166 680.5,-166\" stroke=\"#000000\"/>\n",
-       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"684\" y=\"-172.8\">#3</text>\n",
-       "<polygon fill=\"#ffff00\" points=\"701.5,-166 701.5,-187 714.5,-187 714.5,-166 701.5,-166\" stroke=\"transparent\"/>\n",
-       "<polygon fill=\"none\" points=\"701.5,-166 701.5,-187 714.5,-187 714.5,-166 701.5,-166\" stroke=\"#000000\"/>\n",
-       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"704.5\" y=\"-172.8\">0</text>\n",
-       "<polygon fill=\"#ffff00\" points=\"714.5,-166 714.5,-187 727.5,-187 727.5,-166 714.5,-166\" stroke=\"transparent\"/>\n",
-       "<polygon fill=\"none\" points=\"714.5,-166 714.5,-187 727.5,-187 727.5,-166 714.5,-166\" stroke=\"#000000\"/>\n",
-       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"717.5\" y=\"-172.8\">1</text>\n",
-       "<polygon fill=\"#ffff00\" points=\"727.5,-166 727.5,-187 740.5,-187 740.5,-166 727.5,-166\" stroke=\"transparent\"/>\n",
-       "<polygon fill=\"none\" points=\"727.5,-166 727.5,-187 740.5,-187 740.5,-166 727.5,-166\" stroke=\"#000000\"/>\n",
-       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"730.5\" y=\"-172.8\">2</text>\n",
-       "<polygon fill=\"none\" points=\"740.5,-166 740.5,-187 768.5,-187 768.5,-166 740.5,-166\" stroke=\"#000000\"/>\n",
-       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"747.5\" y=\"-172.8\">#2</text>\n",
-       "<polygon fill=\"#ffff00\" points=\"768.5,-166 768.5,-187 781.5,-187 781.5,-166 768.5,-166\" stroke=\"transparent\"/>\n",
-       "<polygon fill=\"none\" points=\"768.5,-166 768.5,-187 781.5,-187 781.5,-166 768.5,-166\" stroke=\"#000000\"/>\n",
-       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"771.5\" y=\"-172.8\">0</text>\n",
-       "<polygon fill=\"#ffff00\" points=\"781.5,-166 781.5,-187 794.5,-187 794.5,-166 781.5,-166\" stroke=\"transparent\"/>\n",
-       "<polygon fill=\"none\" points=\"781.5,-166 781.5,-187 794.5,-187 794.5,-166 781.5,-166\" stroke=\"#000000\"/>\n",
-       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"784.5\" y=\"-172.8\">3</text>\n",
+       "<polygon fill=\"#ffc0cb\" points=\"635.5,-187 635.5,-208 684.5,-208 684.5,-187 635.5,-187\" stroke=\"transparent\"/>\n",
+       "<polyline fill=\"none\" points=\"635.5,-187 684.5,-187 \" stroke=\"#000000\"/>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"646\" y=\"-193.8\">dests</text>\n",
+       "<polygon fill=\"#ffc0cb\" points=\"684.5,-187 684.5,-208 705.5,-208 705.5,-187 684.5,-187\" stroke=\"transparent\"/>\n",
+       "<polyline fill=\"none\" points=\"684.5,-187 705.5,-187 \" stroke=\"#000000\"/>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"687.5\" y=\"-193.8\">~0</text>\n",
+       "<polyline fill=\"none\" points=\"705.5,-187 718.5,-187 \" stroke=\"#000000\"/>\n",
+       "<polyline fill=\"none\" points=\"718.5,-187 731.5,-187 \" stroke=\"#000000\"/>\n",
+       "<polygon fill=\"#ffc0cb\" points=\"731.5,-187 731.5,-208 752.5,-208 752.5,-187 731.5,-187\" stroke=\"transparent\"/>\n",
+       "<polyline fill=\"none\" points=\"731.5,-187 752.5,-187 \" stroke=\"#000000\"/>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"734.5\" y=\"-193.8\">~3</text>\n",
+       "<polyline fill=\"none\" points=\"752.5,-187 765.5,-187 \" stroke=\"#000000\"/>\n",
+       "<polyline fill=\"none\" points=\"765.5,-187 778.5,-187 \" stroke=\"#000000\"/>\n",
+       "<polygon fill=\"#ffc0cb\" points=\"778.5,-187 778.5,-208 799.5,-208 799.5,-187 778.5,-187\" stroke=\"transparent\"/>\n",
+       "<polyline fill=\"none\" points=\"778.5,-187 799.5,-187 \" stroke=\"#000000\"/>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"781.5\" y=\"-193.8\">~6</text>\n",
+       "<polyline fill=\"none\" points=\"799.5,-187 812.5,-187 \" stroke=\"#000000\"/>\n",
+       "<polyline fill=\"none\" points=\"812.5,-187 825.5,-187 \" stroke=\"#000000\"/>\n",
+       "<polyline fill=\"none\" points=\"825.5,-187 838.5,-187 \" stroke=\"#000000\"/>\n",
+       "<polygon fill=\"#ffc0cb\" points=\"838.5,-187 838.5,-208 866.5,-208 866.5,-187 838.5,-187\" stroke=\"transparent\"/>\n",
+       "<polyline fill=\"none\" points=\"838.5,-187 866.5,-187 \" stroke=\"#000000\"/>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"841.5\" y=\"-193.8\">~10</text>\n",
+       "<polyline fill=\"none\" points=\"866.5,-187 879.5,-187 \" stroke=\"#000000\"/>\n",
+       "<polyline fill=\"none\" points=\"879.5,-187 892.5,-187 \" stroke=\"#000000\"/>\n",
+       "<polygon fill=\"none\" points=\"635.5,-166 635.5,-187 684.5,-187 684.5,-166 635.5,-166\" stroke=\"#000000\"/>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"638.5\" y=\"-172.8\">#cnt/dst</text>\n",
+       "<polygon fill=\"none\" points=\"684.5,-166 684.5,-187 705.5,-187 705.5,-166 684.5,-166\" stroke=\"#000000\"/>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"688\" y=\"-172.8\">#2</text>\n",
+       "<polygon fill=\"#ffff00\" points=\"705.5,-166 705.5,-187 718.5,-187 718.5,-166 705.5,-166\" stroke=\"transparent\"/>\n",
+       "<polygon fill=\"none\" points=\"705.5,-166 705.5,-187 718.5,-187 718.5,-166 705.5,-166\" stroke=\"#000000\"/>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"708.5\" y=\"-172.8\">0</text>\n",
+       "<polygon fill=\"#ffff00\" points=\"718.5,-166 718.5,-187 731.5,-187 731.5,-166 718.5,-166\" stroke=\"transparent\"/>\n",
+       "<polygon fill=\"none\" points=\"718.5,-166 718.5,-187 731.5,-187 731.5,-166 718.5,-166\" stroke=\"#000000\"/>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"721.5\" y=\"-172.8\">3</text>\n",
+       "<polygon fill=\"none\" points=\"731.5,-166 731.5,-187 752.5,-187 752.5,-166 731.5,-166\" stroke=\"#000000\"/>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"735\" y=\"-172.8\">#2</text>\n",
+       "<polygon fill=\"#ffff00\" points=\"752.5,-166 752.5,-187 765.5,-187 765.5,-166 752.5,-166\" stroke=\"transparent\"/>\n",
+       "<polygon fill=\"none\" points=\"752.5,-166 752.5,-187 765.5,-187 765.5,-166 752.5,-166\" stroke=\"#000000\"/>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"755.5\" y=\"-172.8\">0</text>\n",
+       "<polygon fill=\"#ffff00\" points=\"765.5,-166 765.5,-187 778.5,-187 778.5,-166 765.5,-166\" stroke=\"transparent\"/>\n",
+       "<polygon fill=\"none\" points=\"765.5,-166 765.5,-187 778.5,-187 778.5,-166 765.5,-166\" stroke=\"#000000\"/>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"768.5\" y=\"-172.8\">1</text>\n",
+       "<polygon fill=\"none\" points=\"778.5,-166 778.5,-187 799.5,-187 799.5,-166 778.5,-166\" stroke=\"#000000\"/>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"782\" y=\"-172.8\">#3</text>\n",
+       "<polygon fill=\"#ffff00\" points=\"799.5,-166 799.5,-187 812.5,-187 812.5,-166 799.5,-166\" stroke=\"transparent\"/>\n",
+       "<polygon fill=\"none\" points=\"799.5,-166 799.5,-187 812.5,-187 812.5,-166 799.5,-166\" stroke=\"#000000\"/>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"802.5\" y=\"-172.8\">0</text>\n",
+       "<polygon fill=\"#ffff00\" points=\"812.5,-166 812.5,-187 825.5,-187 825.5,-166 812.5,-166\" stroke=\"transparent\"/>\n",
+       "<polygon fill=\"none\" points=\"812.5,-166 812.5,-187 825.5,-187 825.5,-166 812.5,-166\" stroke=\"#000000\"/>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"815.5\" y=\"-172.8\">1</text>\n",
+       "<polygon fill=\"#ffff00\" points=\"825.5,-166 825.5,-187 838.5,-187 838.5,-166 825.5,-166\" stroke=\"transparent\"/>\n",
+       "<polygon fill=\"none\" points=\"825.5,-166 825.5,-187 838.5,-187 838.5,-166 825.5,-166\" stroke=\"#000000\"/>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"828.5\" y=\"-172.8\">2</text>\n",
+       "<polygon fill=\"none\" points=\"838.5,-166 838.5,-187 866.5,-187 866.5,-166 838.5,-166\" stroke=\"#000000\"/>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"845.5\" y=\"-172.8\">#2</text>\n",
+       "<polygon fill=\"#ffff00\" points=\"866.5,-166 866.5,-187 879.5,-187 879.5,-166 866.5,-166\" stroke=\"transparent\"/>\n",
+       "<polygon fill=\"none\" points=\"866.5,-166 866.5,-187 879.5,-187 879.5,-166 866.5,-166\" stroke=\"#000000\"/>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"869.5\" y=\"-172.8\">0</text>\n",
+       "<polygon fill=\"#ffff00\" points=\"879.5,-166 879.5,-187 892.5,-187 892.5,-166 879.5,-166\" stroke=\"transparent\"/>\n",
+       "<polygon fill=\"none\" points=\"879.5,-166 879.5,-187 892.5,-187 892.5,-166 879.5,-166\" stroke=\"#000000\"/>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"882.5\" y=\"-172.8\">3</text>\n",
        "</g>\n",
        "<!-- meta -->\n",
        "<g class=\"node\" id=\"node4\">\n",
@@ -4462,172 +4704,189 @@
        "<!-- Generated by graphviz version 2.40.1 (20161225.0304)\n",
        " -->\n",
        "<!-- Pages: 1 -->\n",
-       "<svg width=\"481pt\" height=\"269pt\"\n",
-       " viewBox=\"0.00 0.00 481.30 269.00\" xmlns=\"http://www.w3.org/2000/svg\" xmlns:xlink=\"http://www.w3.org/1999/xlink\">\n",
-       "<g id=\"graph0\" class=\"graph\" transform=\"scale(1 1) rotate(0) translate(4 265)\">\n",
-       "<polygon fill=\"#ffffff\" stroke=\"transparent\" points=\"-4,4 -4,-265 477.3,-265 477.3,4 -4,4\"/>\n",
-       "<text text-anchor=\"start\" x=\"184.65\" y=\"-246.8\" font-family=\"Lato\" font-size=\"14.00\" fill=\"#000000\">Fin(</text>\n",
-       "<text text-anchor=\"start\" x=\"209.65\" y=\"-246.8\" font-family=\"Lato\" font-size=\"14.00\" fill=\"#1f78b4\">⓿</text>\n",
-       "<text text-anchor=\"start\" x=\"225.65\" y=\"-246.8\" font-family=\"Lato\" font-size=\"14.00\" fill=\"#000000\">) &amp; Inf(</text>\n",
-       "<text text-anchor=\"start\" x=\"268.65\" y=\"-246.8\" font-family=\"Lato\" font-size=\"14.00\" fill=\"#ff4da0\">❶</text>\n",
-       "<text text-anchor=\"start\" x=\"284.65\" y=\"-246.8\" font-family=\"Lato\" font-size=\"14.00\" fill=\"#000000\">)</text>\n",
-       "<text text-anchor=\"start\" x=\"207.65\" y=\"-232.8\" font-family=\"Lato\" font-size=\"14.00\" fill=\"#000000\">[Rabin 1]</text>\n",
+       "<svg width=\"483pt\" height=\"278pt\"\n",
+       " viewBox=\"0.00 0.00 483.30 278.00\" xmlns=\"http://www.w3.org/2000/svg\" xmlns:xlink=\"http://www.w3.org/1999/xlink\">\n",
+       "<g id=\"graph0\" class=\"graph\" transform=\"scale(1 1) rotate(0) translate(4 274)\">\n",
+       "<polygon fill=\"#ffffff\" stroke=\"transparent\" points=\"-4,4 -4,-274 479.3,-274 479.3,4 -4,4\"/>\n",
+       "<text text-anchor=\"start\" x=\"185.65\" y=\"-255.8\" font-family=\"Lato\" font-size=\"14.00\" fill=\"#000000\">Fin(</text>\n",
+       "<text text-anchor=\"start\" x=\"210.65\" y=\"-255.8\" font-family=\"Lato\" font-size=\"14.00\" fill=\"#1f78b4\">⓿</text>\n",
+       "<text text-anchor=\"start\" x=\"226.65\" y=\"-255.8\" font-family=\"Lato\" font-size=\"14.00\" fill=\"#000000\">) &amp; Inf(</text>\n",
+       "<text text-anchor=\"start\" x=\"269.65\" y=\"-255.8\" font-family=\"Lato\" font-size=\"14.00\" fill=\"#ff4da0\">❶</text>\n",
+       "<text text-anchor=\"start\" x=\"285.65\" y=\"-255.8\" font-family=\"Lato\" font-size=\"14.00\" fill=\"#000000\">)</text>\n",
+       "<text text-anchor=\"start\" x=\"208.65\" y=\"-241.8\" font-family=\"Lato\" font-size=\"14.00\" fill=\"#000000\">[Rabin 1]</text>\n",
        "<!-- I -->\n",
        "<!-- &#45;7 -->\n",
        "<g id=\"node2\" class=\"node\">\n",
        "<title>&#45;7</title>\n",
-       "<ellipse fill=\"#ffffaa\" stroke=\"#000000\" cx=\"39.8\" cy=\"-48\" rx=\"1.8\" ry=\"1.8\"/>\n",
+       "<ellipse fill=\"#ffffaa\" stroke=\"#000000\" cx=\"39.8\" cy=\"-52\" rx=\"1.8\" ry=\"1.8\"/>\n",
        "</g>\n",
        "<!-- I&#45;&gt;&#45;7 -->\n",
        "<g id=\"edge1\" class=\"edge\">\n",
        "<title>I&#45;&gt;&#45;7</title>\n",
-       "<path fill=\"none\" stroke=\"#000000\" d=\"M1.1821,-48C4.6508,-48 20.5694,-48 30.8552,-48\"/>\n",
-       "<polygon fill=\"none\" stroke=\"#000000\" points=\"30.9898,-50.4501 37.9898,-48 30.9898,-45.5501 30.9898,-50.4501\"/>\n",
+       "<path fill=\"none\" stroke=\"#000000\" d=\"M1.1821,-52C4.6508,-52 20.5694,-52 30.8552,-52\"/>\n",
+       "<polygon fill=\"none\" stroke=\"#000000\" points=\"30.9898,-54.4501 37.9898,-52 30.9898,-49.5501 30.9898,-54.4501\"/>\n",
        "</g>\n",
        "<!-- 0 -->\n",
        "<g id=\"node3\" class=\"node\">\n",
        "<title>0</title>\n",
-       "<ellipse fill=\"#ffffaa\" stroke=\"#000000\" cx=\"177.6\" cy=\"-94\" rx=\"18\" ry=\"18\"/>\n",
-       "<text text-anchor=\"middle\" x=\"177.6\" y=\"-90.3\" font-family=\"Lato\" font-size=\"14.00\" fill=\"#000000\">0</text>\n",
+       "<ellipse fill=\"#ffffaa\" stroke=\"#000000\" cx=\"177.6\" cy=\"-98\" rx=\"18\" ry=\"18\"/>\n",
+       "<text text-anchor=\"middle\" x=\"177.6\" y=\"-94.3\" font-family=\"Lato\" font-size=\"14.00\" fill=\"#000000\">0</text>\n",
        "</g>\n",
        "<!-- &#45;7&#45;&gt;0 -->\n",
        "<g id=\"edge2\" class=\"edge\">\n",
        "<title>&#45;7&#45;&gt;0</title>\n",
-       "<path fill=\"none\" stroke=\"#000000\" d=\"M41.6817,-48.3648C50.2252,-50.0444 86.176,-57.3649 114.6,-67 128.166,-71.5986 142.9035,-77.8422 154.7114,-83.1672\"/>\n",
-       "<polygon fill=\"#000000\" stroke=\"#000000\" points=\"161.2942,-86.1769 153.6182,-86.1309 158.1111,-84.7215 154.928,-83.2662 154.928,-83.2662 154.928,-83.2662 158.1111,-84.7215 156.2378,-80.4014 161.2942,-86.1769 161.2942,-86.1769\"/>\n",
+       "<path fill=\"none\" stroke=\"#000000\" d=\"M41.6817,-52.3648C50.2252,-54.0444 86.176,-61.3649 114.6,-71 128.166,-75.5986 142.9035,-81.8422 154.7114,-87.1672\"/>\n",
+       "<polygon fill=\"#000000\" stroke=\"#000000\" points=\"161.2942,-90.1769 153.6182,-90.1309 158.1111,-88.7215 154.928,-87.2662 154.928,-87.2662 154.928,-87.2662 158.1111,-88.7215 156.2378,-84.4014 161.2942,-90.1769 161.2942,-90.1769\"/>\n",
        "</g>\n",
        "<!-- 1 -->\n",
        "<g id=\"node4\" class=\"node\">\n",
        "<title>1</title>\n",
-       "<ellipse fill=\"#ffffaa\" stroke=\"#000000\" cx=\"454.8\" cy=\"-66\" rx=\"18\" ry=\"18\"/>\n",
-       "<text text-anchor=\"middle\" x=\"454.8\" y=\"-62.3\" font-family=\"Lato\" font-size=\"14.00\" fill=\"#000000\">1</text>\n",
+       "<ellipse fill=\"#ffffaa\" stroke=\"#000000\" cx=\"454.8\" cy=\"-69\" rx=\"18\" ry=\"18\"/>\n",
+       "<text text-anchor=\"middle\" x=\"454.8\" y=\"-65.3\" font-family=\"Lato\" font-size=\"14.00\" fill=\"#000000\">1</text>\n",
        "</g>\n",
        "<!-- &#45;7&#45;&gt;1 -->\n",
        "<g id=\"edge3\" class=\"edge\">\n",
        "<title>&#45;7&#45;&gt;1</title>\n",
-       "<path fill=\"none\" stroke=\"#000000\" d=\"M40.6334,-46.403C45.1063,-38.0742 67.1636,0 96.6,0 96.6,0 96.6,0 398,0 421.0233,0 436.7555,-23.3586 445.7234,-42.2832\"/>\n",
-       "<polygon fill=\"#000000\" stroke=\"#000000\" points=\"448.7223,-49.0034 442.9931,-43.8947 447.296,-45.8072 445.8696,-42.611 445.8696,-42.611 445.8696,-42.611 447.296,-45.8072 448.7462,-41.3273 448.7223,-49.0034 448.7223,-49.0034\"/>\n",
+       "<path fill=\"none\" stroke=\"#000000\" d=\"M40.5959,-50.2699C44.8775,-41.2471 66.1176,0 96.6,0 96.6,0 96.6,0 398,0 421.9769,0 437.7037,-25.1421 446.404,-45.0729\"/>\n",
+       "<polygon fill=\"#000000\" stroke=\"#000000\" points=\"449.0869,-51.5884 443.5088,-46.3151 447.7542,-48.352 446.4215,-45.1157 446.4215,-45.1157 446.4215,-45.1157 447.7542,-48.352 449.3343,-43.9162 449.0869,-51.5884 449.0869,-51.5884\"/>\n",
        "</g>\n",
        "<!-- 2 -->\n",
        "<g id=\"node5\" class=\"node\">\n",
        "<title>2</title>\n",
-       "<ellipse fill=\"#ffffaa\" stroke=\"#000000\" cx=\"96.6\" cy=\"-94\" rx=\"18\" ry=\"18\"/>\n",
-       "<text text-anchor=\"middle\" x=\"96.6\" y=\"-90.3\" font-family=\"Lato\" font-size=\"14.00\" fill=\"#000000\">2</text>\n",
+       "<ellipse fill=\"#ffffaa\" stroke=\"#000000\" cx=\"96.6\" cy=\"-98\" rx=\"18\" ry=\"18\"/>\n",
+       "<text text-anchor=\"middle\" x=\"96.6\" y=\"-94.3\" font-family=\"Lato\" font-size=\"14.00\" fill=\"#000000\">2</text>\n",
        "</g>\n",
        "<!-- &#45;7&#45;&gt;2 -->\n",
        "<g id=\"edge4\" class=\"edge\">\n",
        "<title>&#45;7&#45;&gt;2</title>\n",
-       "<path fill=\"none\" stroke=\"#000000\" d=\"M41.2041,-49.1371C46.107,-53.1078 62.9194,-66.7235 76.7491,-77.9235\"/>\n",
-       "<polygon fill=\"#000000\" stroke=\"#000000\" points=\"82.45,-82.5405 75.0277,-80.5829 79.7301,-80.3378 77.0102,-78.135 77.0102,-78.135 77.0102,-78.135 79.7301,-80.3378 78.9927,-75.6871 82.45,-82.5405 82.45,-82.5405\"/>\n",
+       "<path fill=\"none\" stroke=\"#000000\" d=\"M41.2041,-53.1371C46.107,-57.1078 62.9194,-70.7235 76.7491,-81.9235\"/>\n",
+       "<polygon fill=\"#000000\" stroke=\"#000000\" points=\"82.45,-86.5405 75.0277,-84.5829 79.7301,-84.3378 77.0102,-82.135 77.0102,-82.135 77.0102,-82.135 79.7301,-84.3378 78.9927,-79.6871 82.45,-86.5405 82.45,-86.5405\"/>\n",
+       "</g>\n",
+       "<!-- 0&#45;&gt;0 -->\n",
+       "<g id=\"edge5\" class=\"edge\">\n",
+       "<title>0&#45;&gt;0</title>\n",
+       "<path fill=\"none\" stroke=\"#000000\" d=\"M170.5688,-114.6641C169.0063,-124.625 171.35,-134 177.6,-134 182.2875,-134 184.7777,-128.7266 185.0707,-121.8876\"/>\n",
+       "<polygon fill=\"#000000\" stroke=\"#000000\" points=\"184.6313,-114.6641 188.2006,-121.4598 184.8438,-118.1576 185.0564,-121.6511 185.0564,-121.6511 185.0564,-121.6511 184.8438,-118.1576 181.9122,-121.8425 184.6313,-114.6641 184.6313,-114.6641\"/>\n",
+       "<text text-anchor=\"start\" x=\"159.1\" y=\"-152.8\" font-family=\"Lato\" font-size=\"14.00\" fill=\"#000000\">a &amp; !b</text>\n",
+       "<text text-anchor=\"start\" x=\"169.6\" y=\"-137.8\" font-family=\"Lato\" font-size=\"14.00\" fill=\"#1f78b4\">⓿</text>\n",
        "</g>\n",
        "<!-- 0&#45;&gt;1 -->\n",
-       "<g id=\"edge5\" class=\"edge\">\n",
+       "<g id=\"edge6\" class=\"edge\">\n",
        "<title>0&#45;&gt;1</title>\n",
-       "<path fill=\"none\" stroke=\"#000000\" d=\"M181.5454,-111.5929C189.1907,-140.53 208.9538,-195 249.4,-195 249.4,-195 249.4,-195 398,-195 420.5398,-195 440.0529,-128.1998 449.2236,-90.7389\"/>\n",
-       "<polygon fill=\"#000000\" stroke=\"#000000\" points=\"450.9176,-83.6664 452.3503,-91.2076 450.1023,-87.0701 449.287,-90.4739 449.287,-90.4739 449.287,-90.4739 450.1023,-87.0701 446.2236,-89.7401 450.9176,-83.6664 450.9176,-83.6664\"/>\n",
-       "<text text-anchor=\"start\" x=\"303.2\" y=\"-213.8\" font-family=\"Lato\" font-size=\"14.00\" fill=\"#000000\">!a &amp; !b</text>\n",
-       "<text text-anchor=\"start\" x=\"315.7\" y=\"-198.8\" font-family=\"Lato\" font-size=\"14.00\" fill=\"#1f78b4\">⓿</text>\n",
+       "<path fill=\"none\" stroke=\"#000000\" d=\"M181.1474,-115.9815C188.2755,-146.2237 207.3907,-204 249.4,-204 249.4,-204 249.4,-204 398,-204 421.6982,-204 440.9991,-132.4288 449.7425,-93.5111\"/>\n",
+       "<polygon fill=\"#000000\" stroke=\"#000000\" points=\"451.2509,-86.6489 452.8245,-94.162 450.4994,-90.0673 449.748,-93.4857 449.748,-93.4857 449.748,-93.4857 450.4994,-90.0673 446.6714,-92.8094 451.2509,-86.6489 451.2509,-86.6489\"/>\n",
+       "<text text-anchor=\"start\" x=\"303.2\" y=\"-222.8\" font-family=\"Lato\" font-size=\"14.00\" fill=\"#000000\">!a &amp; !b</text>\n",
+       "<text text-anchor=\"start\" x=\"315.7\" y=\"-207.8\" font-family=\"Lato\" font-size=\"14.00\" fill=\"#1f78b4\">⓿</text>\n",
        "</g>\n",
        "<!-- &#45;1 -->\n",
        "<g id=\"node6\" class=\"node\">\n",
        "<title>&#45;1</title>\n",
-       "<ellipse fill=\"#ffffaa\" stroke=\"#000000\" cx=\"249.4\" cy=\"-90\" rx=\"1.8\" ry=\"1.8\"/>\n",
+       "<ellipse fill=\"#ffffaa\" stroke=\"#000000\" cx=\"249.4\" cy=\"-96\" rx=\"1.8\" ry=\"1.8\"/>\n",
        "</g>\n",
        "<!-- 0&#45;&gt;&#45;1 -->\n",
-       "<g id=\"edge6\" class=\"edge\">\n",
+       "<g id=\"edge7\" class=\"edge\">\n",
        "<title>0&#45;&gt;&#45;1</title>\n",
-       "<path fill=\"none\" stroke=\"#000000\" d=\"M195.7182,-92.9906C209.9987,-92.1951 229.3013,-91.1197 240.4454,-90.4989\"/>\n",
-       "<polygon fill=\"none\" stroke=\"#000000\" points=\"240.7454,-92.936 247.5983,-90.1004 240.4728,-88.0436 240.7454,-92.936\"/>\n",
-       "<text text-anchor=\"start\" x=\"218.1\" y=\"-109.8\" font-family=\"Lato\" font-size=\"14.00\" fill=\"#000000\">a</text>\n",
-       "<text text-anchor=\"start\" x=\"213.6\" y=\"-94.8\" font-family=\"Lato\" font-size=\"14.00\" fill=\"#ff4da0\">❶</text>\n",
+       "<path fill=\"none\" stroke=\"#000000\" d=\"M195.7182,-97.4953C209.9987,-97.0975 229.3013,-96.5599 240.4454,-96.2494\"/>\n",
+       "<polygon fill=\"none\" stroke=\"#000000\" points=\"240.6692,-98.6942 247.5983,-96.0502 240.5327,-93.7961 240.6692,-98.6942\"/>\n",
+       "<text text-anchor=\"start\" x=\"218.1\" y=\"-114.8\" font-family=\"Lato\" font-size=\"14.00\" fill=\"#000000\">a</text>\n",
+       "<text text-anchor=\"start\" x=\"213.6\" y=\"-99.8\" font-family=\"Lato\" font-size=\"14.00\" fill=\"#ff4da0\">❶</text>\n",
        "</g>\n",
        "<!-- 1&#45;&gt;0 -->\n",
-       "<g id=\"edge9\" class=\"edge\">\n",
-       "<title>1&#45;&gt;0</title>\n",
-       "<path fill=\"none\" stroke=\"#000000\" d=\"M438.9172,-57.1695C427.8056,-51.8118 412.4273,-46 398,-46 249.4,-46 249.4,-46 249.4,-46 227.6911,-46 207.5721,-61.3527 194.1882,-74.6927\"/>\n",
-       "<polygon fill=\"#000000\" stroke=\"#000000\" points=\"189.2264,-79.858 191.804,-72.6276 191.651,-77.3339 194.0757,-74.8098 194.0757,-74.8098 194.0757,-74.8098 191.651,-77.3339 196.3474,-76.992 189.2264,-79.858 189.2264,-79.858\"/>\n",
-       "<text text-anchor=\"start\" x=\"306.7\" y=\"-49.8\" font-family=\"Lato\" font-size=\"14.00\" fill=\"#000000\">a &amp; b</text>\n",
-       "</g>\n",
-       "<!-- 1&#45;&gt;1 -->\n",
        "<g id=\"edge10\" class=\"edge\">\n",
-       "<title>1&#45;&gt;1</title>\n",
-       "<path fill=\"none\" stroke=\"#000000\" d=\"M451.5643,-83.7817C451.0144,-93.3149 452.093,-102 454.8,-102 456.788,-102 457.8977,-97.3161 458.1292,-91.0521\"/>\n",
-       "<polygon fill=\"#000000\" stroke=\"#000000\" points=\"458.0357,-83.7817 461.2756,-90.7406 458.0808,-87.2814 458.1258,-90.7812 458.1258,-90.7812 458.1258,-90.7812 458.0808,-87.2814 454.9761,-90.8217 458.0357,-83.7817 458.0357,-83.7817\"/>\n",
-       "<text text-anchor=\"start\" x=\"436.3\" y=\"-120.8\" font-family=\"Lato\" font-size=\"14.00\" fill=\"#000000\">!a &amp; b</text>\n",
-       "<text text-anchor=\"start\" x=\"446.8\" y=\"-105.8\" font-family=\"Lato\" font-size=\"14.00\" fill=\"#ff4da0\">❶</text>\n",
+       "<title>1&#45;&gt;0</title>\n",
+       "<path fill=\"none\" stroke=\"#000000\" d=\"M439.5565,-59.1124C428.4854,-52.8787 412.8944,-46 398,-46 249.4,-46 249.4,-46 249.4,-46 226.8449,-46 206.5844,-63.0403 193.3827,-77.6115\"/>\n",
+       "<polygon fill=\"#000000\" stroke=\"#000000\" points=\"188.5096,-83.238 190.7113,-75.8844 190.801,-80.5923 193.0924,-77.9466 193.0924,-77.9466 193.0924,-77.9466 190.801,-80.5923 195.4735,-80.0089 188.5096,-83.238 188.5096,-83.238\"/>\n",
+       "<text text-anchor=\"start\" x=\"305.2\" y=\"-64.8\" font-family=\"Lato\" font-size=\"14.00\" fill=\"#000000\">a &amp; !b</text>\n",
+       "<text text-anchor=\"start\" x=\"315.7\" y=\"-49.8\" font-family=\"Lato\" font-size=\"14.00\" fill=\"#1f78b4\">⓿</text>\n",
        "</g>\n",
        "<!-- 1&#45;&gt;1 -->\n",
        "<g id=\"edge11\" class=\"edge\">\n",
        "<title>1&#45;&gt;1</title>\n",
-       "<path fill=\"none\" stroke=\"#000000\" d=\"M449.7906,-83.5771C446.3451,-104.718 448.0148,-132 454.8,-132 460.843,-132 462.8285,-110.3596 460.7564,-90.6907\"/>\n",
-       "<polygon fill=\"#000000\" stroke=\"#000000\" points=\"459.8094,-83.5771 463.8556,-90.1002 460.2713,-87.0465 460.7332,-90.5159 460.7332,-90.5159 460.7332,-90.5159 460.2713,-87.0465 457.6107,-90.9316 459.8094,-83.5771 459.8094,-83.5771\"/>\n",
-       "<text text-anchor=\"start\" x=\"450.3\" y=\"-149.8\" font-family=\"Lato\" font-size=\"14.00\" fill=\"#000000\">1</text>\n",
-       "<text text-anchor=\"start\" x=\"438.8\" y=\"-135.8\" font-family=\"Lato\" font-size=\"14.00\" fill=\"#1f78b4\">⓿</text>\n",
-       "<text text-anchor=\"start\" x=\"454.8\" y=\"-135.8\" font-family=\"Lato\" font-size=\"14.00\" fill=\"#ff4da0\">❶</text>\n",
+       "<path fill=\"none\" stroke=\"#000000\" d=\"M452.6291,-87.1527C452.2951,-96.5391 453.0188,-105 454.8,-105 456.1081,-105 456.8458,-100.437 457.0132,-94.2953\"/>\n",
+       "<polygon fill=\"#000000\" stroke=\"#000000\" points=\"456.9709,-87.1527 460.1624,-94.1339 456.9917,-90.6526 457.0124,-94.1526 457.0124,-94.1526 457.0124,-94.1526 456.9917,-90.6526 453.8625,-94.1713 456.9709,-87.1527 456.9709,-87.1527\"/>\n",
+       "<text text-anchor=\"start\" x=\"434.3\" y=\"-123.8\" font-family=\"Lato\" font-size=\"14.00\" fill=\"#000000\">!a &amp; !b</text>\n",
+       "<text text-anchor=\"start\" x=\"446.8\" y=\"-108.8\" font-family=\"Lato\" font-size=\"14.00\" fill=\"#1f78b4\">⓿</text>\n",
+       "</g>\n",
+       "<!-- 1&#45;&gt;1 -->\n",
+       "<g id=\"edge12\" class=\"edge\">\n",
+       "<title>1&#45;&gt;1</title>\n",
+       "<path fill=\"none\" stroke=\"#000000\" d=\"M451.425,-86.9063C449.175,-108 450.3,-135 454.8,-135 458.8078,-135 460.1385,-113.5833 458.7922,-93.9965\"/>\n",
+       "<polygon fill=\"#000000\" stroke=\"#000000\" points=\"458.175,-86.9063 461.9202,-93.6067 458.4785,-90.3931 458.7821,-93.8799 458.7821,-93.8799 458.7821,-93.8799 458.4785,-90.3931 455.644,-94.1531 458.175,-86.9063 458.175,-86.9063\"/>\n",
+       "<text text-anchor=\"start\" x=\"436.3\" y=\"-153.8\" font-family=\"Lato\" font-size=\"14.00\" fill=\"#000000\">!a &amp; b</text>\n",
+       "<text text-anchor=\"start\" x=\"446.8\" y=\"-138.8\" font-family=\"Lato\" font-size=\"14.00\" fill=\"#ff4da0\">❶</text>\n",
+       "</g>\n",
+       "<!-- 1&#45;&gt;1 -->\n",
+       "<g id=\"edge13\" class=\"edge\">\n",
+       "<title>1&#45;&gt;1</title>\n",
+       "<path fill=\"none\" stroke=\"#000000\" d=\"M450.6867,-86.7715C446.1164,-117.4688 447.4875,-165 454.8,-165 461.5698,-165 463.2473,-124.2623 459.8327,-93.8583\"/>\n",
+       "<polygon fill=\"#000000\" stroke=\"#000000\" points=\"458.9133,-86.7715 462.9378,-93.308 459.3636,-90.2424 459.814,-93.7133 459.814,-93.7133 459.814,-93.7133 459.3636,-90.2424 456.6902,-94.1186 458.9133,-86.7715 458.9133,-86.7715\"/>\n",
+       "<text text-anchor=\"start\" x=\"450.3\" y=\"-182.8\" font-family=\"Lato\" font-size=\"14.00\" fill=\"#000000\">1</text>\n",
+       "<text text-anchor=\"start\" x=\"438.8\" y=\"-168.8\" font-family=\"Lato\" font-size=\"14.00\" fill=\"#1f78b4\">⓿</text>\n",
+       "<text text-anchor=\"start\" x=\"454.8\" y=\"-168.8\" font-family=\"Lato\" font-size=\"14.00\" fill=\"#ff4da0\">❶</text>\n",
        "</g>\n",
        "<!-- 2&#45;&gt;0 -->\n",
-       "<g id=\"edge12\" class=\"edge\">\n",
+       "<g id=\"edge14\" class=\"edge\">\n",
        "<title>2&#45;&gt;0</title>\n",
-       "<path fill=\"none\" stroke=\"#000000\" d=\"M114.9802,-94C126.0352,-94 140.2622,-94 152.3609,-94\"/>\n",
-       "<polygon fill=\"#000000\" stroke=\"#000000\" points=\"159.5716,-94 152.5716,-97.1501 156.0716,-94 152.5716,-94.0001 152.5716,-94.0001 152.5716,-94.0001 156.0716,-94 152.5716,-90.8501 159.5716,-94 159.5716,-94\"/>\n",
-       "<text text-anchor=\"middle\" x=\"137.1\" y=\"-97.8\" font-family=\"Lato\" font-size=\"14.00\" fill=\"#000000\">1</text>\n",
+       "<path fill=\"none\" stroke=\"#000000\" d=\"M114.9802,-98C126.0352,-98 140.2622,-98 152.3609,-98\"/>\n",
+       "<polygon fill=\"#000000\" stroke=\"#000000\" points=\"159.5716,-98 152.5716,-101.1501 156.0716,-98 152.5716,-98.0001 152.5716,-98.0001 152.5716,-98.0001 156.0716,-98 152.5716,-94.8501 159.5716,-98 159.5716,-98\"/>\n",
+       "<text text-anchor=\"middle\" x=\"137.1\" y=\"-101.8\" font-family=\"Lato\" font-size=\"14.00\" fill=\"#000000\">1</text>\n",
        "</g>\n",
        "<!-- &#45;1&#45;&gt;0 -->\n",
-       "<g id=\"edge7\" class=\"edge\">\n",
+       "<g id=\"edge8\" class=\"edge\">\n",
        "<title>&#45;1&#45;&gt;0</title>\n",
-       "<path fill=\"none\" stroke=\"#000000\" d=\"M247.5543,-89.6253C244.0657,-88.9382 236.2565,-87.5014 229.6,-87 222.509,-86.4658 220.6784,-86.3182 213.6,-87 209.9697,-87.3497 206.1616,-87.8933 202.437,-88.5267\"/>\n",
-       "<polygon fill=\"#000000\" stroke=\"#000000\" points=\"195.4462,-89.8276 201.7517,-85.45 198.8871,-89.1872 202.328,-88.5469 202.328,-88.5469 202.328,-88.5469 198.8871,-89.1872 202.9044,-91.6437 195.4462,-89.8276 195.4462,-89.8276\"/>\n",
+       "<path fill=\"none\" stroke=\"#000000\" d=\"M247.5625,-95.5006C244.0875,-94.585 236.2999,-92.67 229.6,-92 220.6987,-91.1099 210.9543,-91.7914 202.3314,-92.9676\"/>\n",
+       "<polygon fill=\"#000000\" stroke=\"#000000\" points=\"195.395,-94.0483 201.8266,-89.8581 198.8532,-93.5094 202.3115,-92.9706 202.3115,-92.9706 202.3115,-92.9706 198.8532,-93.5094 202.7965,-96.0831 195.395,-94.0483 195.395,-94.0483\"/>\n",
        "</g>\n",
        "<!-- 3 -->\n",
        "<g id=\"node7\" class=\"node\">\n",
        "<title>3</title>\n",
-       "<ellipse fill=\"#ffffaa\" stroke=\"#000000\" cx=\"323.7\" cy=\"-100\" rx=\"18\" ry=\"18\"/>\n",
-       "<text text-anchor=\"middle\" x=\"323.7\" y=\"-96.3\" font-family=\"Lato\" font-size=\"14.00\" fill=\"#000000\">3</text>\n",
+       "<ellipse fill=\"#ffffaa\" stroke=\"#000000\" cx=\"323.7\" cy=\"-112\" rx=\"18\" ry=\"18\"/>\n",
+       "<text text-anchor=\"middle\" x=\"323.7\" y=\"-108.3\" font-family=\"Lato\" font-size=\"14.00\" fill=\"#000000\">3</text>\n",
        "</g>\n",
        "<!-- &#45;1&#45;&gt;3 -->\n",
-       "<g id=\"edge8\" class=\"edge\">\n",
+       "<g id=\"edge9\" class=\"edge\">\n",
        "<title>&#45;1&#45;&gt;3</title>\n",
-       "<path fill=\"none\" stroke=\"#000000\" d=\"M251.2272,-89.3762C254.6849,-88.2324 262.4448,-85.8397 269.2,-85 276.2568,-84.1228 278.2112,-83.6866 285.2,-85 290.3377,-85.9655 295.6702,-87.5968 300.6703,-89.4367\"/>\n",
-       "<polygon fill=\"#000000\" stroke=\"#000000\" points=\"307.2329,-92.0319 299.565,-92.387 303.9782,-90.7448 300.7234,-89.4577 300.7234,-89.4577 300.7234,-89.4577 303.9782,-90.7448 301.8818,-86.5284 307.2329,-92.0319 307.2329,-92.0319\"/>\n",
+       "<path fill=\"none\" stroke=\"#000000\" d=\"M251.3713,-95.4123C256.8287,-93.8751 272.5662,-90.0523 285.2,-93 290.8142,-94.3099 296.5502,-96.5626 301.822,-99.0688\"/>\n",
+       "<polygon fill=\"#000000\" stroke=\"#000000\" points=\"308.2073,-102.3271 300.5404,-101.9512 305.0897,-100.7363 301.9722,-99.1454 301.9722,-99.1454 301.9722,-99.1454 305.0897,-100.7363 303.404,-96.3396 308.2073,-102.3271 308.2073,-102.3271\"/>\n",
        "</g>\n",
        "<!-- 3&#45;&gt;&#45;1 -->\n",
-       "<g id=\"edge16\" class=\"edge\">\n",
+       "<g id=\"edge18\" class=\"edge\">\n",
        "<title>3&#45;&gt;&#45;1</title>\n",
-       "<path fill=\"none\" stroke=\"#000000\" d=\"M305.5361,-97.5553C290.5803,-95.5424 270.0102,-92.7739 258.3747,-91.2079\"/>\n",
-       "<polygon fill=\"none\" stroke=\"#000000\" points=\"258.5009,-88.7529 251.2366,-90.2472 257.8473,-93.6091 258.5009,-88.7529\"/>\n",
-       "<text text-anchor=\"start\" x=\"272.7\" y=\"-112.8\" font-family=\"Lato\" font-size=\"14.00\" fill=\"#000000\">1</text>\n",
-       "<text text-anchor=\"start\" x=\"269.2\" y=\"-97.8\" font-family=\"Lato\" font-size=\"14.00\" fill=\"#1f78b4\">⓿</text>\n",
+       "<path fill=\"none\" stroke=\"#000000\" d=\"M305.8797,-108.1625C290.7728,-104.9093 269.7549,-100.3833 258.0854,-97.8703\"/>\n",
+       "<polygon fill=\"none\" stroke=\"#000000\" points=\"258.5956,-95.4741 251.2366,-96.3955 257.564,-100.2643 258.5956,-95.4741\"/>\n",
+       "<text text-anchor=\"start\" x=\"272.7\" y=\"-121.8\" font-family=\"Lato\" font-size=\"14.00\" fill=\"#000000\">1</text>\n",
+       "<text text-anchor=\"start\" x=\"269.2\" y=\"-106.8\" font-family=\"Lato\" font-size=\"14.00\" fill=\"#1f78b4\">⓿</text>\n",
        "</g>\n",
        "<!-- &#45;4 -->\n",
        "<g id=\"node8\" class=\"node\">\n",
        "<title>&#45;4</title>\n",
-       "<ellipse fill=\"#ffffaa\" stroke=\"#000000\" cx=\"398\" cy=\"-100\" rx=\"1.8\" ry=\"1.8\"/>\n",
+       "<ellipse fill=\"#ffffaa\" stroke=\"#000000\" cx=\"398\" cy=\"-112\" rx=\"1.8\" ry=\"1.8\"/>\n",
        "</g>\n",
        "<!-- 3&#45;&gt;&#45;4 -->\n",
-       "<g id=\"edge13\" class=\"edge\">\n",
+       "<g id=\"edge15\" class=\"edge\">\n",
        "<title>3&#45;&gt;&#45;4</title>\n",
-       "<path fill=\"none\" stroke=\"#000000\" d=\"M342.0663,-100C356.9861,-100 377.3911,-100 388.9818,-100\"/>\n",
-       "<polygon fill=\"none\" stroke=\"#000000\" points=\"389.1146,-102.4501 396.1145,-100 389.1145,-97.5501 389.1146,-102.4501\"/>\n",
-       "<text text-anchor=\"start\" x=\"364.7\" y=\"-118.8\" font-family=\"Lato\" font-size=\"14.00\" fill=\"#000000\">!a</text>\n",
-       "<text text-anchor=\"start\" x=\"362.2\" y=\"-103.8\" font-family=\"Lato\" font-size=\"14.00\" fill=\"#1f78b4\">⓿</text>\n",
+       "<path fill=\"none\" stroke=\"#000000\" d=\"M342.0663,-112C356.9861,-112 377.3911,-112 388.9818,-112\"/>\n",
+       "<polygon fill=\"none\" stroke=\"#000000\" points=\"389.1146,-114.4501 396.1145,-112 389.1145,-109.5501 389.1146,-114.4501\"/>\n",
+       "<text text-anchor=\"start\" x=\"364.7\" y=\"-130.8\" font-family=\"Lato\" font-size=\"14.00\" fill=\"#000000\">!a</text>\n",
+       "<text text-anchor=\"start\" x=\"362.2\" y=\"-115.8\" font-family=\"Lato\" font-size=\"14.00\" fill=\"#1f78b4\">⓿</text>\n",
        "</g>\n",
        "<!-- &#45;4&#45;&gt;0 -->\n",
-       "<g id=\"edge14\" class=\"edge\">\n",
+       "<g id=\"edge16\" class=\"edge\">\n",
        "<title>&#45;4&#45;&gt;0</title>\n",
-       "<path fill=\"none\" stroke=\"#000000\" d=\"M397.559,-102.0283C396.0943,-108.2022 390.7546,-126.7829 378.2,-134 372.035,-137.544 369.3079,-134.215 362.2,-134 296.0648,-131.9991 274.9046,-149.892 213.6,-125 206.7222,-122.2074 200.2309,-117.5468 194.7044,-112.6769\"/>\n",
-       "<polygon fill=\"#000000\" stroke=\"#000000\" points=\"189.5209,-107.7986 196.7774,-110.3021 192.0697,-110.1973 194.6185,-112.596 194.6185,-112.596 194.6185,-112.596 192.0697,-110.1973 192.4597,-114.89 189.5209,-107.7986 189.5209,-107.7986\"/>\n",
+       "<path fill=\"none\" stroke=\"#000000\" d=\"M397.5185,-113.9135C395.9376,-119.7373 390.2987,-137.2587 378.2,-144 371.9881,-147.4613 369.3061,-144.2671 362.2,-144 346.4469,-143.408 229.9624,-137.4239 213.6,-130 206.7464,-126.8904 200.2623,-122.0122 194.735,-116.9932\"/>\n",
+       "<polygon fill=\"#000000\" stroke=\"#000000\" points=\"189.5483,-111.9876 196.7727,-114.5821 192.0668,-114.4182 194.5852,-116.8487 194.5852,-116.8487 194.5852,-116.8487 192.0668,-114.4182 192.3977,-119.1153 189.5483,-111.9876 189.5483,-111.9876\"/>\n",
        "</g>\n",
        "<!-- &#45;4&#45;&gt;1 -->\n",
-       "<g id=\"edge15\" class=\"edge\">\n",
+       "<g id=\"edge17\" class=\"edge\">\n",
        "<title>&#45;4&#45;&gt;1</title>\n",
-       "<path fill=\"none\" stroke=\"#000000\" d=\"M399.8898,-98.8688C405.0842,-95.7595 420.0556,-86.7977 433.0556,-79.016\"/>\n",
-       "<polygon fill=\"#000000\" stroke=\"#000000\" points=\"439.2275,-75.3216 434.8392,-81.6196 436.2244,-77.1192 433.2213,-78.9169 433.2213,-78.9169 433.2213,-78.9169 436.2244,-77.1192 431.6034,-76.2141 439.2275,-75.3216 439.2275,-75.3216\"/>\n",
+       "<path fill=\"none\" stroke=\"#000000\" d=\"M399.8898,-110.5693C405.2649,-106.5001 421.1095,-94.5051 434.4051,-84.4398\"/>\n",
+       "<polygon fill=\"#000000\" stroke=\"#000000\" points=\"440.2878,-79.9864 436.608,-86.723 437.4972,-82.0989 434.7067,-84.2115 434.7067,-84.2115 434.7067,-84.2115 437.4972,-82.0989 432.8054,-81.7 440.2878,-79.9864 440.2878,-79.9864\"/>\n",
        "</g>\n",
        "</g>\n",
        "</svg>\n"
       ],
       "text/plain": [
-       "<spot.twa_graph; proxy of <Swig Object of type 'std::shared_ptr< spot::twa_graph > *' at 0x7f616c1788a0> >"
+       "<spot.twa_graph; proxy of <Swig Object of type 'std::shared_ptr< spot::twa_graph > *' at 0x7f2950267b40> >"
       ]
      },
      "metadata": {},
@@ -4636,249 +4895,281 @@
     {
      "data": {
       "image/svg+xml": [
-       "<svg height=\"262pt\" viewBox=\"0.00 0.00 754.00 262.00\" width=\"754pt\" xmlns=\"http://www.w3.org/2000/svg\" xmlns:xlink=\"http://www.w3.org/1999/xlink\">\n",
+       "<svg height=\"262pt\" viewBox=\"0.00 0.00 853.00 262.00\" width=\"853pt\" xmlns=\"http://www.w3.org/2000/svg\" xmlns:xlink=\"http://www.w3.org/1999/xlink\">\n",
        "<g class=\"graph\" id=\"graph0\" transform=\"scale(1 1) rotate(0) translate(4 258)\">\n",
        "<title>g</title>\n",
-       "<polygon fill=\"#ffffff\" points=\"-4,4 -4,-258 750,-258 750,4 -4,4\" stroke=\"transparent\"/>\n",
+       "<polygon fill=\"#ffffff\" points=\"-4,4 -4,-258 849,-258 849,4 -4,4\" stroke=\"transparent\"/>\n",
        "<!-- states -->\n",
        "<g class=\"node\" id=\"node1\">\n",
        "<title>states</title>\n",
-       "<polygon fill=\"#ffff00\" points=\"33.5,-197 33.5,-218 88.5,-218 88.5,-197 33.5,-197\" stroke=\"transparent\"/>\n",
-       "<polyline fill=\"none\" points=\"33.5,-197 88.5,-197 \" stroke=\"#000000\"/>\n",
-       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"45.5\" y=\"-203.8\">states</text>\n",
-       "<polygon fill=\"#ffff00\" points=\"88.5,-197 88.5,-218 101.5,-218 101.5,-197 88.5,-197\" stroke=\"transparent\"/>\n",
-       "<polyline fill=\"none\" points=\"88.5,-197 101.5,-197 \" stroke=\"#000000\"/>\n",
-       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"91.5\" y=\"-203.8\">0</text>\n",
-       "<polygon fill=\"#ffff00\" points=\"101.5,-197 101.5,-218 114.5,-218 114.5,-197 101.5,-197\" stroke=\"transparent\"/>\n",
-       "<polyline fill=\"none\" points=\"101.5,-197 114.5,-197 \" stroke=\"#000000\"/>\n",
-       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"104.5\" y=\"-203.8\">1</text>\n",
-       "<polygon fill=\"#ffff00\" points=\"114.5,-197 114.5,-218 127.5,-218 127.5,-197 114.5,-197\" stroke=\"transparent\"/>\n",
-       "<polyline fill=\"none\" points=\"114.5,-197 127.5,-197 \" stroke=\"#000000\"/>\n",
-       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"117.5\" y=\"-203.8\">2</text>\n",
-       "<polygon fill=\"#ffff00\" points=\"127.5,-197 127.5,-218 140.5,-218 140.5,-197 127.5,-197\" stroke=\"transparent\"/>\n",
-       "<polyline fill=\"none\" points=\"127.5,-197 140.5,-197 \" stroke=\"#000000\"/>\n",
-       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"130.5\" y=\"-203.8\">3</text>\n",
-       "<polygon fill=\"none\" points=\"33.5,-176 33.5,-197 88.5,-197 88.5,-176 33.5,-176\" stroke=\"#000000\"/>\n",
-       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"48.5\" y=\"-182.8\">succ</text>\n",
-       "<polygon fill=\"#00ffff\" points=\"88.5,-176 88.5,-197 101.5,-197 101.5,-176 88.5,-176\" stroke=\"transparent\"/>\n",
-       "<polygon fill=\"none\" points=\"88.5,-176 88.5,-197 101.5,-197 101.5,-176 88.5,-176\" stroke=\"#000000\"/>\n",
-       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"91.5\" y=\"-182.8\">1</text>\n",
-       "<polygon fill=\"#00ffff\" points=\"101.5,-176 101.5,-197 114.5,-197 114.5,-176 101.5,-176\" stroke=\"transparent\"/>\n",
-       "<polygon fill=\"none\" points=\"101.5,-176 101.5,-197 114.5,-197 114.5,-176 101.5,-176\" stroke=\"#000000\"/>\n",
-       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"104.5\" y=\"-182.8\">3</text>\n",
-       "<polygon fill=\"#00ffff\" points=\"114.5,-176 114.5,-197 127.5,-197 127.5,-176 114.5,-176\" stroke=\"transparent\"/>\n",
-       "<polygon fill=\"none\" points=\"114.5,-176 114.5,-197 127.5,-197 127.5,-176 114.5,-176\" stroke=\"#000000\"/>\n",
-       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"117.5\" y=\"-182.8\">6</text>\n",
-       "<polygon fill=\"#00ffff\" points=\"127.5,-176 127.5,-197 140.5,-197 140.5,-176 127.5,-176\" stroke=\"transparent\"/>\n",
-       "<polygon fill=\"none\" points=\"127.5,-176 127.5,-197 140.5,-197 140.5,-176 127.5,-176\" stroke=\"#000000\"/>\n",
-       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"130.5\" y=\"-182.8\">7</text>\n",
-       "<polygon fill=\"none\" points=\"33.5,-155 33.5,-176 88.5,-176 88.5,-155 33.5,-155\" stroke=\"#000000\"/>\n",
-       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"36.5\" y=\"-161.8\">succ_tail</text>\n",
-       "<polygon fill=\"#00ffff\" points=\"88.5,-155 88.5,-176 101.5,-176 101.5,-155 88.5,-155\" stroke=\"transparent\"/>\n",
-       "<polygon fill=\"none\" points=\"88.5,-155 88.5,-176 101.5,-176 101.5,-155 88.5,-155\" stroke=\"#000000\"/>\n",
-       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"91.5\" y=\"-161.8\">2</text>\n",
-       "<polygon fill=\"#00ffff\" points=\"101.5,-155 101.5,-176 114.5,-176 114.5,-155 101.5,-155\" stroke=\"transparent\"/>\n",
-       "<polygon fill=\"none\" points=\"101.5,-155 101.5,-176 114.5,-176 114.5,-155 101.5,-155\" stroke=\"#000000\"/>\n",
-       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"104.5\" y=\"-161.8\">5</text>\n",
-       "<polygon fill=\"#00ffff\" points=\"114.5,-155 114.5,-176 127.5,-176 127.5,-155 114.5,-155\" stroke=\"transparent\"/>\n",
-       "<polygon fill=\"none\" points=\"114.5,-155 114.5,-176 127.5,-176 127.5,-155 114.5,-155\" stroke=\"#000000\"/>\n",
-       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"117.5\" y=\"-161.8\">6</text>\n",
-       "<polygon fill=\"#00ffff\" points=\"127.5,-155 127.5,-176 140.5,-176 140.5,-155 127.5,-155\" stroke=\"transparent\"/>\n",
-       "<polygon fill=\"none\" points=\"127.5,-155 127.5,-176 140.5,-176 140.5,-155 127.5,-155\" stroke=\"#000000\"/>\n",
-       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"130.5\" y=\"-161.8\">8</text>\n",
+       "<polygon fill=\"#ffff00\" points=\"29.5,-197 29.5,-218 84.5,-218 84.5,-197 29.5,-197\" stroke=\"transparent\"/>\n",
+       "<polyline fill=\"none\" points=\"29.5,-197 84.5,-197 \" stroke=\"#000000\"/>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"41.5\" y=\"-203.8\">states</text>\n",
+       "<polygon fill=\"#ffff00\" points=\"84.5,-197 84.5,-218 97.5,-218 97.5,-197 84.5,-197\" stroke=\"transparent\"/>\n",
+       "<polyline fill=\"none\" points=\"84.5,-197 97.5,-197 \" stroke=\"#000000\"/>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"87.5\" y=\"-203.8\">0</text>\n",
+       "<polygon fill=\"#ffff00\" points=\"97.5,-197 97.5,-218 110.5,-218 110.5,-197 97.5,-197\" stroke=\"transparent\"/>\n",
+       "<polyline fill=\"none\" points=\"97.5,-197 110.5,-197 \" stroke=\"#000000\"/>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"100.5\" y=\"-203.8\">1</text>\n",
+       "<polygon fill=\"#ffff00\" points=\"110.5,-197 110.5,-218 123.5,-218 123.5,-197 110.5,-197\" stroke=\"transparent\"/>\n",
+       "<polyline fill=\"none\" points=\"110.5,-197 123.5,-197 \" stroke=\"#000000\"/>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"113.5\" y=\"-203.8\">2</text>\n",
+       "<polygon fill=\"#ffff00\" points=\"123.5,-197 123.5,-218 143.5,-218 143.5,-197 123.5,-197\" stroke=\"transparent\"/>\n",
+       "<polyline fill=\"none\" points=\"123.5,-197 143.5,-197 \" stroke=\"#000000\"/>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"130\" y=\"-203.8\">3</text>\n",
+       "<polygon fill=\"none\" points=\"29.5,-176 29.5,-197 84.5,-197 84.5,-176 29.5,-176\" stroke=\"#000000\"/>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"44.5\" y=\"-182.8\">succ</text>\n",
+       "<polygon fill=\"#00ffff\" points=\"84.5,-176 84.5,-197 97.5,-197 97.5,-176 84.5,-176\" stroke=\"transparent\"/>\n",
+       "<polygon fill=\"none\" points=\"84.5,-176 84.5,-197 97.5,-197 97.5,-176 84.5,-176\" stroke=\"#000000\"/>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"87.5\" y=\"-182.8\">1</text>\n",
+       "<polygon fill=\"#00ffff\" points=\"97.5,-176 97.5,-197 110.5,-197 110.5,-176 97.5,-176\" stroke=\"transparent\"/>\n",
+       "<polygon fill=\"none\" points=\"97.5,-176 97.5,-197 110.5,-197 110.5,-176 97.5,-176\" stroke=\"#000000\"/>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"100.5\" y=\"-182.8\">4</text>\n",
+       "<polygon fill=\"#00ffff\" points=\"110.5,-176 110.5,-197 123.5,-197 123.5,-176 110.5,-176\" stroke=\"transparent\"/>\n",
+       "<polygon fill=\"none\" points=\"110.5,-176 110.5,-197 123.5,-197 123.5,-176 110.5,-176\" stroke=\"#000000\"/>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"113.5\" y=\"-182.8\">8</text>\n",
+       "<polygon fill=\"#00ffff\" points=\"123.5,-176 123.5,-197 143.5,-197 143.5,-176 123.5,-176\" stroke=\"transparent\"/>\n",
+       "<polygon fill=\"none\" points=\"123.5,-176 123.5,-197 143.5,-197 143.5,-176 123.5,-176\" stroke=\"#000000\"/>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"130\" y=\"-182.8\">9</text>\n",
+       "<polygon fill=\"none\" points=\"29.5,-155 29.5,-176 84.5,-176 84.5,-155 29.5,-155\" stroke=\"#000000\"/>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"32.5\" y=\"-161.8\">succ_tail</text>\n",
+       "<polygon fill=\"#00ffff\" points=\"84.5,-155 84.5,-176 97.5,-176 97.5,-155 84.5,-155\" stroke=\"transparent\"/>\n",
+       "<polygon fill=\"none\" points=\"84.5,-155 84.5,-176 97.5,-176 97.5,-155 84.5,-155\" stroke=\"#000000\"/>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"87.5\" y=\"-161.8\">3</text>\n",
+       "<polygon fill=\"#00ffff\" points=\"97.5,-155 97.5,-176 110.5,-176 110.5,-155 97.5,-155\" stroke=\"transparent\"/>\n",
+       "<polygon fill=\"none\" points=\"97.5,-155 97.5,-176 110.5,-176 110.5,-155 97.5,-155\" stroke=\"#000000\"/>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"100.5\" y=\"-161.8\">7</text>\n",
+       "<polygon fill=\"#00ffff\" points=\"110.5,-155 110.5,-176 123.5,-176 123.5,-155 110.5,-155\" stroke=\"transparent\"/>\n",
+       "<polygon fill=\"none\" points=\"110.5,-155 110.5,-176 123.5,-176 123.5,-155 110.5,-155\" stroke=\"#000000\"/>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"113.5\" y=\"-161.8\">8</text>\n",
+       "<polygon fill=\"#00ffff\" points=\"123.5,-155 123.5,-176 143.5,-176 143.5,-155 123.5,-155\" stroke=\"transparent\"/>\n",
+       "<polygon fill=\"none\" points=\"123.5,-155 123.5,-176 143.5,-176 143.5,-155 123.5,-155\" stroke=\"#000000\"/>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"126.5\" y=\"-161.8\">10</text>\n",
        "</g>\n",
        "<!-- edges -->\n",
        "<g class=\"node\" id=\"node2\">\n",
        "<title>edges</title>\n",
-       "<polygon fill=\"#00ffff\" points=\"174.5,-229 174.5,-250 235.5,-250 235.5,-229 174.5,-229\" stroke=\"transparent\"/>\n",
-       "<polyline fill=\"none\" points=\"174.5,-229 235.5,-229 \" stroke=\"#000000\"/>\n",
-       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"189.5\" y=\"-235.8\">edges</text>\n",
-       "<polygon fill=\"#00ffff\" points=\"235.5,-229 235.5,-250 282.5,-250 282.5,-229 235.5,-229\" stroke=\"transparent\"/>\n",
-       "<polyline fill=\"none\" points=\"235.5,-229 282.5,-229 \" stroke=\"#000000\"/>\n",
-       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"255.5\" y=\"-235.8\">1</text>\n",
-       "<polygon fill=\"#00ffff\" points=\"282.5,-229 282.5,-250 309.5,-250 309.5,-229 282.5,-229\" stroke=\"transparent\"/>\n",
-       "<polyline fill=\"none\" points=\"282.5,-229 309.5,-229 \" stroke=\"#000000\"/>\n",
-       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"292.5\" y=\"-235.8\">2</text>\n",
-       "<polygon fill=\"#00ffff\" points=\"309.5,-229 309.5,-250 347.5,-250 347.5,-229 309.5,-229\" stroke=\"transparent\"/>\n",
-       "<polyline fill=\"none\" points=\"309.5,-229 347.5,-229 \" stroke=\"#000000\"/>\n",
-       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"325\" y=\"-235.8\">3</text>\n",
-       "<polygon fill=\"#00ffff\" points=\"347.5,-229 347.5,-250 390.5,-250 390.5,-229 347.5,-229\" stroke=\"transparent\"/>\n",
-       "<polyline fill=\"none\" points=\"347.5,-229 390.5,-229 \" stroke=\"#000000\"/>\n",
-       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"365.5\" y=\"-235.8\">4</text>\n",
-       "<polygon fill=\"#00ffff\" points=\"390.5,-229 390.5,-250 427.5,-250 427.5,-229 390.5,-229\" stroke=\"transparent\"/>\n",
-       "<polyline fill=\"none\" points=\"390.5,-229 427.5,-229 \" stroke=\"#000000\"/>\n",
-       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"405.5\" y=\"-235.8\">5</text>\n",
-       "<polygon fill=\"#00ffff\" points=\"427.5,-229 427.5,-250 447.5,-250 447.5,-229 427.5,-229\" stroke=\"transparent\"/>\n",
-       "<polyline fill=\"none\" points=\"427.5,-229 447.5,-229 \" stroke=\"#000000\"/>\n",
-       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"434\" y=\"-235.8\">6</text>\n",
-       "<polygon fill=\"#00ffff\" points=\"447.5,-229 447.5,-250 474.5,-250 474.5,-229 447.5,-229\" stroke=\"transparent\"/>\n",
-       "<polyline fill=\"none\" points=\"447.5,-229 474.5,-229 \" stroke=\"#000000\"/>\n",
-       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"457.5\" y=\"-235.8\">7</text>\n",
-       "<polygon fill=\"#00ffff\" points=\"474.5,-229 474.5,-250 501.5,-250 501.5,-229 474.5,-229\" stroke=\"transparent\"/>\n",
-       "<polyline fill=\"none\" points=\"474.5,-229 501.5,-229 \" stroke=\"#000000\"/>\n",
-       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"484.5\" y=\"-235.8\">8</text>\n",
-       "<polygon fill=\"none\" points=\"174.5,-208 174.5,-229 235.5,-229 235.5,-208 174.5,-208\" stroke=\"#000000\"/>\n",
-       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"191.5\" y=\"-214.8\">cond</text>\n",
-       "<polygon fill=\"none\" points=\"235.5,-208 235.5,-229 282.5,-229 282.5,-208 235.5,-208\" stroke=\"#000000\"/>\n",
-       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"238.5\" y=\"-214.8\">!a &amp; !b</text>\n",
-       "<polygon fill=\"none\" points=\"282.5,-208 282.5,-229 309.5,-229 309.5,-208 282.5,-208\" stroke=\"#000000\"/>\n",
-       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"292.5\" y=\"-214.8\">a</text>\n",
-       "<polygon fill=\"none\" points=\"309.5,-208 309.5,-229 347.5,-229 347.5,-208 309.5,-208\" stroke=\"#000000\"/>\n",
-       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"312.5\" y=\"-214.8\">a &amp; b</text>\n",
-       "<polygon fill=\"none\" points=\"347.5,-208 347.5,-229 390.5,-229 390.5,-208 347.5,-208\" stroke=\"#000000\"/>\n",
-       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"350.5\" y=\"-214.8\">!a &amp; b</text>\n",
-       "<polygon fill=\"none\" points=\"390.5,-208 390.5,-229 427.5,-229 427.5,-208 390.5,-208\" stroke=\"#000000\"/>\n",
-       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"405.5\" y=\"-214.8\">1</text>\n",
-       "<polygon fill=\"none\" points=\"427.5,-208 427.5,-229 447.5,-229 447.5,-208 427.5,-208\" stroke=\"#000000\"/>\n",
-       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"434\" y=\"-214.8\">1</text>\n",
-       "<polygon fill=\"none\" points=\"447.5,-208 447.5,-229 474.5,-229 474.5,-208 447.5,-208\" stroke=\"#000000\"/>\n",
-       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"455.5\" y=\"-214.8\">!a</text>\n",
-       "<polygon fill=\"none\" points=\"474.5,-208 474.5,-229 501.5,-229 501.5,-208 474.5,-208\" stroke=\"#000000\"/>\n",
-       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"484.5\" y=\"-214.8\">1</text>\n",
-       "<polygon fill=\"none\" points=\"174.5,-187 174.5,-208 235.5,-208 235.5,-187 174.5,-187\" stroke=\"#000000\"/>\n",
-       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"195.5\" y=\"-193.8\">acc</text>\n",
-       "<polygon fill=\"none\" points=\"235.5,-187 235.5,-208 282.5,-208 282.5,-187 235.5,-187\" stroke=\"#000000\"/>\n",
-       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"248.5\" y=\"-193.8\">{0}</text>\n",
-       "<polygon fill=\"none\" points=\"282.5,-187 282.5,-208 309.5,-208 309.5,-187 282.5,-187\" stroke=\"#000000\"/>\n",
-       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"285.5\" y=\"-193.8\">{1}</text>\n",
-       "<polygon fill=\"none\" points=\"309.5,-187 309.5,-208 347.5,-208 347.5,-187 309.5,-187\" stroke=\"#000000\"/>\n",
-       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"321.5\" y=\"-193.8\">{}</text>\n",
-       "<polygon fill=\"none\" points=\"347.5,-187 347.5,-208 390.5,-208 390.5,-187 347.5,-187\" stroke=\"#000000\"/>\n",
-       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"358.5\" y=\"-193.8\">{1}</text>\n",
-       "<polygon fill=\"none\" points=\"390.5,-187 390.5,-208 427.5,-208 427.5,-187 390.5,-187\" stroke=\"#000000\"/>\n",
-       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"393.5\" y=\"-193.8\">{0,1}</text>\n",
-       "<polygon fill=\"none\" points=\"427.5,-187 427.5,-208 447.5,-208 447.5,-187 427.5,-187\" stroke=\"#000000\"/>\n",
-       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"430.5\" y=\"-193.8\">{}</text>\n",
-       "<polygon fill=\"none\" points=\"447.5,-187 447.5,-208 474.5,-208 474.5,-187 447.5,-187\" stroke=\"#000000\"/>\n",
-       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"450.5\" y=\"-193.8\">{0}</text>\n",
-       "<polygon fill=\"none\" points=\"474.5,-187 474.5,-208 501.5,-208 501.5,-187 474.5,-187\" stroke=\"#000000\"/>\n",
-       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"477.5\" y=\"-193.8\">{0}</text>\n",
-       "<polygon fill=\"none\" points=\"174.5,-166 174.5,-187 235.5,-187 235.5,-166 174.5,-166\" stroke=\"#000000\"/>\n",
-       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"197\" y=\"-172.8\">dst</text>\n",
-       "<polygon fill=\"#ffff00\" points=\"235.5,-166 235.5,-187 282.5,-187 282.5,-166 235.5,-166\" stroke=\"transparent\"/>\n",
-       "<polygon fill=\"none\" points=\"235.5,-166 235.5,-187 282.5,-187 282.5,-166 235.5,-166\" stroke=\"#000000\"/>\n",
-       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"255.5\" y=\"-172.8\">1</text>\n",
-       "<polygon fill=\"#ffc0cb\" points=\"282.5,-166 282.5,-187 309.5,-187 309.5,-166 282.5,-166\" stroke=\"transparent\"/>\n",
-       "<polygon fill=\"none\" points=\"282.5,-166 282.5,-187 309.5,-187 309.5,-166 282.5,-166\" stroke=\"#000000\"/>\n",
-       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"288.5\" y=\"-172.8\">~0</text>\n",
-       "<polygon fill=\"#ffff00\" points=\"309.5,-166 309.5,-187 347.5,-187 347.5,-166 309.5,-166\" stroke=\"transparent\"/>\n",
-       "<polygon fill=\"none\" points=\"309.5,-166 309.5,-187 347.5,-187 347.5,-166 309.5,-166\" stroke=\"#000000\"/>\n",
-       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"325\" y=\"-172.8\">0</text>\n",
-       "<polygon fill=\"#ffff00\" points=\"347.5,-166 347.5,-187 390.5,-187 390.5,-166 347.5,-166\" stroke=\"transparent\"/>\n",
-       "<polygon fill=\"none\" points=\"347.5,-166 347.5,-187 390.5,-187 390.5,-166 347.5,-166\" stroke=\"#000000\"/>\n",
-       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"365.5\" y=\"-172.8\">1</text>\n",
-       "<polygon fill=\"#ffff00\" points=\"390.5,-166 390.5,-187 427.5,-187 427.5,-166 390.5,-166\" stroke=\"transparent\"/>\n",
-       "<polygon fill=\"none\" points=\"390.5,-166 390.5,-187 427.5,-187 427.5,-166 390.5,-166\" stroke=\"#000000\"/>\n",
-       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"405.5\" y=\"-172.8\">1</text>\n",
-       "<polygon fill=\"#ffff00\" points=\"427.5,-166 427.5,-187 447.5,-187 447.5,-166 427.5,-166\" stroke=\"transparent\"/>\n",
-       "<polygon fill=\"none\" points=\"427.5,-166 427.5,-187 447.5,-187 447.5,-166 427.5,-166\" stroke=\"#000000\"/>\n",
-       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"434\" y=\"-172.8\">0</text>\n",
-       "<polygon fill=\"#ffc0cb\" points=\"447.5,-166 447.5,-187 474.5,-187 474.5,-166 447.5,-166\" stroke=\"transparent\"/>\n",
-       "<polygon fill=\"none\" points=\"447.5,-166 447.5,-187 474.5,-187 474.5,-166 447.5,-166\" stroke=\"#000000\"/>\n",
-       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"453.5\" y=\"-172.8\">~3</text>\n",
-       "<polygon fill=\"#ffc0cb\" points=\"474.5,-166 474.5,-187 501.5,-187 501.5,-166 474.5,-166\" stroke=\"transparent\"/>\n",
-       "<polygon fill=\"none\" points=\"474.5,-166 474.5,-187 501.5,-187 501.5,-166 474.5,-166\" stroke=\"#000000\"/>\n",
-       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"480.5\" y=\"-172.8\">~0</text>\n",
-       "<polygon fill=\"none\" points=\"174.5,-145 174.5,-166 235.5,-166 235.5,-145 174.5,-145\" stroke=\"#000000\"/>\n",
-       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"177.5\" y=\"-151.8\">next_succ</text>\n",
-       "<polygon fill=\"#00ffff\" points=\"235.5,-145 235.5,-166 282.5,-166 282.5,-145 235.5,-145\" stroke=\"transparent\"/>\n",
-       "<polygon fill=\"none\" points=\"235.5,-145 235.5,-166 282.5,-166 282.5,-145 235.5,-145\" stroke=\"#000000\"/>\n",
-       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"255.5\" y=\"-151.8\">2</text>\n",
-       "<polygon fill=\"none\" points=\"282.5,-145 282.5,-166 309.5,-166 309.5,-145 282.5,-145\" stroke=\"#000000\"/>\n",
-       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"292.5\" y=\"-151.8\">0</text>\n",
-       "<polygon fill=\"#00ffff\" points=\"309.5,-145 309.5,-166 347.5,-166 347.5,-145 309.5,-145\" stroke=\"transparent\"/>\n",
-       "<polygon fill=\"none\" points=\"309.5,-145 309.5,-166 347.5,-166 347.5,-145 309.5,-145\" stroke=\"#000000\"/>\n",
-       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"325\" y=\"-151.8\">4</text>\n",
-       "<polygon fill=\"#00ffff\" points=\"347.5,-145 347.5,-166 390.5,-166 390.5,-145 347.5,-145\" stroke=\"transparent\"/>\n",
-       "<polygon fill=\"none\" points=\"347.5,-145 347.5,-166 390.5,-166 390.5,-145 347.5,-145\" stroke=\"#000000\"/>\n",
-       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"365.5\" y=\"-151.8\">5</text>\n",
-       "<polygon fill=\"none\" points=\"390.5,-145 390.5,-166 427.5,-166 427.5,-145 390.5,-145\" stroke=\"#000000\"/>\n",
-       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"405.5\" y=\"-151.8\">0</text>\n",
-       "<polygon fill=\"none\" points=\"427.5,-145 427.5,-166 447.5,-166 447.5,-145 427.5,-145\" stroke=\"#000000\"/>\n",
-       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"434\" y=\"-151.8\">0</text>\n",
-       "<polygon fill=\"#00ffff\" points=\"447.5,-145 447.5,-166 474.5,-166 474.5,-145 447.5,-145\" stroke=\"transparent\"/>\n",
-       "<polygon fill=\"none\" points=\"447.5,-145 447.5,-166 474.5,-166 474.5,-145 447.5,-145\" stroke=\"#000000\"/>\n",
-       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"457.5\" y=\"-151.8\">8</text>\n",
-       "<polygon fill=\"none\" points=\"474.5,-145 474.5,-166 501.5,-166 501.5,-145 474.5,-145\" stroke=\"#000000\"/>\n",
-       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"484.5\" y=\"-151.8\">0</text>\n",
-       "<polygon fill=\"none\" points=\"174.5,-124 174.5,-145 235.5,-145 235.5,-124 174.5,-124\" stroke=\"#000000\"/>\n",
-       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"197\" y=\"-130.8\">src</text>\n",
-       "<polygon fill=\"#ffff00\" points=\"235.5,-124 235.5,-145 282.5,-145 282.5,-124 235.5,-124\" stroke=\"transparent\"/>\n",
-       "<polygon fill=\"none\" points=\"235.5,-124 235.5,-145 282.5,-145 282.5,-124 235.5,-124\" stroke=\"#000000\"/>\n",
-       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"255.5\" y=\"-130.8\">0</text>\n",
-       "<polygon fill=\"#ffff00\" points=\"282.5,-124 282.5,-145 309.5,-145 309.5,-124 282.5,-124\" stroke=\"transparent\"/>\n",
-       "<polygon fill=\"none\" points=\"282.5,-124 282.5,-145 309.5,-145 309.5,-124 282.5,-124\" stroke=\"#000000\"/>\n",
-       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"292.5\" y=\"-130.8\">0</text>\n",
-       "<polygon fill=\"#ffff00\" points=\"309.5,-124 309.5,-145 347.5,-145 347.5,-124 309.5,-124\" stroke=\"transparent\"/>\n",
-       "<polygon fill=\"none\" points=\"309.5,-124 309.5,-145 347.5,-145 347.5,-124 309.5,-124\" stroke=\"#000000\"/>\n",
-       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"325\" y=\"-130.8\">1</text>\n",
-       "<polygon fill=\"#ffff00\" points=\"347.5,-124 347.5,-145 390.5,-145 390.5,-124 347.5,-124\" stroke=\"transparent\"/>\n",
-       "<polygon fill=\"none\" points=\"347.5,-124 347.5,-145 390.5,-145 390.5,-124 347.5,-124\" stroke=\"#000000\"/>\n",
-       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"365.5\" y=\"-130.8\">1</text>\n",
-       "<polygon fill=\"#ffff00\" points=\"390.5,-124 390.5,-145 427.5,-145 427.5,-124 390.5,-124\" stroke=\"transparent\"/>\n",
-       "<polygon fill=\"none\" points=\"390.5,-124 390.5,-145 427.5,-145 427.5,-124 390.5,-124\" stroke=\"#000000\"/>\n",
-       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"405.5\" y=\"-130.8\">1</text>\n",
-       "<polygon fill=\"#ffff00\" points=\"427.5,-124 427.5,-145 447.5,-145 447.5,-124 427.5,-124\" stroke=\"transparent\"/>\n",
-       "<polygon fill=\"none\" points=\"427.5,-124 427.5,-145 447.5,-145 447.5,-124 427.5,-124\" stroke=\"#000000\"/>\n",
-       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"434\" y=\"-130.8\">2</text>\n",
-       "<polygon fill=\"#ffff00\" points=\"447.5,-124 447.5,-145 474.5,-145 474.5,-124 447.5,-124\" stroke=\"transparent\"/>\n",
-       "<polygon fill=\"none\" points=\"447.5,-124 447.5,-145 474.5,-145 474.5,-124 447.5,-124\" stroke=\"#000000\"/>\n",
-       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"457.5\" y=\"-130.8\">3</text>\n",
-       "<polygon fill=\"#ffff00\" points=\"474.5,-124 474.5,-145 501.5,-145 501.5,-124 474.5,-124\" stroke=\"transparent\"/>\n",
-       "<polygon fill=\"none\" points=\"474.5,-124 474.5,-145 501.5,-145 501.5,-124 474.5,-124\" stroke=\"#000000\"/>\n",
-       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"484.5\" y=\"-130.8\">3</text>\n",
+       "<polygon fill=\"#00ffff\" points=\"177.5,-229 177.5,-250 238.5,-250 238.5,-229 177.5,-229\" stroke=\"transparent\"/>\n",
+       "<polyline fill=\"none\" points=\"177.5,-229 238.5,-229 \" stroke=\"#000000\"/>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"192.5\" y=\"-235.8\">edges</text>\n",
+       "<polygon fill=\"#00ffff\" points=\"238.5,-229 238.5,-250 281.5,-250 281.5,-229 238.5,-229\" stroke=\"transparent\"/>\n",
+       "<polyline fill=\"none\" points=\"238.5,-229 281.5,-229 \" stroke=\"#000000\"/>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"256.5\" y=\"-235.8\">1</text>\n",
+       "<polygon fill=\"#00ffff\" points=\"281.5,-229 281.5,-250 328.5,-250 328.5,-229 281.5,-229\" stroke=\"transparent\"/>\n",
+       "<polyline fill=\"none\" points=\"281.5,-229 328.5,-229 \" stroke=\"#000000\"/>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"301.5\" y=\"-235.8\">2</text>\n",
+       "<polygon fill=\"#00ffff\" points=\"328.5,-229 328.5,-250 355.5,-250 355.5,-229 328.5,-229\" stroke=\"transparent\"/>\n",
+       "<polyline fill=\"none\" points=\"328.5,-229 355.5,-229 \" stroke=\"#000000\"/>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"338.5\" y=\"-235.8\">3</text>\n",
+       "<polygon fill=\"#00ffff\" points=\"355.5,-229 355.5,-250 398.5,-250 398.5,-229 355.5,-229\" stroke=\"transparent\"/>\n",
+       "<polyline fill=\"none\" points=\"355.5,-229 398.5,-229 \" stroke=\"#000000\"/>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"373.5\" y=\"-235.8\">4</text>\n",
+       "<polygon fill=\"#00ffff\" points=\"398.5,-229 398.5,-250 445.5,-250 445.5,-229 398.5,-229\" stroke=\"transparent\"/>\n",
+       "<polyline fill=\"none\" points=\"398.5,-229 445.5,-229 \" stroke=\"#000000\"/>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"418.5\" y=\"-235.8\">5</text>\n",
+       "<polygon fill=\"#00ffff\" points=\"445.5,-229 445.5,-250 488.5,-250 488.5,-229 445.5,-229\" stroke=\"transparent\"/>\n",
+       "<polyline fill=\"none\" points=\"445.5,-229 488.5,-229 \" stroke=\"#000000\"/>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"463.5\" y=\"-235.8\">6</text>\n",
+       "<polygon fill=\"#00ffff\" points=\"488.5,-229 488.5,-250 525.5,-250 525.5,-229 488.5,-229\" stroke=\"transparent\"/>\n",
+       "<polyline fill=\"none\" points=\"488.5,-229 525.5,-229 \" stroke=\"#000000\"/>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"503.5\" y=\"-235.8\">7</text>\n",
+       "<polygon fill=\"#00ffff\" points=\"525.5,-229 525.5,-250 545.5,-250 545.5,-229 525.5,-229\" stroke=\"transparent\"/>\n",
+       "<polyline fill=\"none\" points=\"525.5,-229 545.5,-229 \" stroke=\"#000000\"/>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"532\" y=\"-235.8\">8</text>\n",
+       "<polygon fill=\"#00ffff\" points=\"545.5,-229 545.5,-250 572.5,-250 572.5,-229 545.5,-229\" stroke=\"transparent\"/>\n",
+       "<polyline fill=\"none\" points=\"545.5,-229 572.5,-229 \" stroke=\"#000000\"/>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"555.5\" y=\"-235.8\">9</text>\n",
+       "<polygon fill=\"#00ffff\" points=\"572.5,-229 572.5,-250 599.5,-250 599.5,-229 572.5,-229\" stroke=\"transparent\"/>\n",
+       "<polyline fill=\"none\" points=\"572.5,-229 599.5,-229 \" stroke=\"#000000\"/>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"579\" y=\"-235.8\">10</text>\n",
+       "<polygon fill=\"none\" points=\"177.5,-208 177.5,-229 238.5,-229 238.5,-208 177.5,-208\" stroke=\"#000000\"/>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"194.5\" y=\"-214.8\">cond</text>\n",
+       "<polygon fill=\"none\" points=\"238.5,-208 238.5,-229 281.5,-229 281.5,-208 238.5,-208\" stroke=\"#000000\"/>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"241.5\" y=\"-214.8\">a &amp; !b</text>\n",
+       "<polygon fill=\"none\" points=\"281.5,-208 281.5,-229 328.5,-229 328.5,-208 281.5,-208\" stroke=\"#000000\"/>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"284.5\" y=\"-214.8\">!a &amp; !b</text>\n",
+       "<polygon fill=\"none\" points=\"328.5,-208 328.5,-229 355.5,-229 355.5,-208 328.5,-208\" stroke=\"#000000\"/>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"338.5\" y=\"-214.8\">a</text>\n",
+       "<polygon fill=\"none\" points=\"355.5,-208 355.5,-229 398.5,-229 398.5,-208 355.5,-208\" stroke=\"#000000\"/>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"358.5\" y=\"-214.8\">a &amp; !b</text>\n",
+       "<polygon fill=\"none\" points=\"398.5,-208 398.5,-229 445.5,-229 445.5,-208 398.5,-208\" stroke=\"#000000\"/>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"401.5\" y=\"-214.8\">!a &amp; !b</text>\n",
+       "<polygon fill=\"none\" points=\"445.5,-208 445.5,-229 488.5,-229 488.5,-208 445.5,-208\" stroke=\"#000000\"/>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"448.5\" y=\"-214.8\">!a &amp; b</text>\n",
+       "<polygon fill=\"none\" points=\"488.5,-208 488.5,-229 525.5,-229 525.5,-208 488.5,-208\" stroke=\"#000000\"/>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"503.5\" y=\"-214.8\">1</text>\n",
+       "<polygon fill=\"none\" points=\"525.5,-208 525.5,-229 545.5,-229 545.5,-208 525.5,-208\" stroke=\"#000000\"/>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"532\" y=\"-214.8\">1</text>\n",
+       "<polygon fill=\"none\" points=\"545.5,-208 545.5,-229 572.5,-229 572.5,-208 545.5,-208\" stroke=\"#000000\"/>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"553.5\" y=\"-214.8\">!a</text>\n",
+       "<polygon fill=\"none\" points=\"572.5,-208 572.5,-229 599.5,-229 599.5,-208 572.5,-208\" stroke=\"#000000\"/>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"582.5\" y=\"-214.8\">1</text>\n",
+       "<polygon fill=\"none\" points=\"177.5,-187 177.5,-208 238.5,-208 238.5,-187 177.5,-187\" stroke=\"#000000\"/>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"198.5\" y=\"-193.8\">acc</text>\n",
+       "<polygon fill=\"none\" points=\"238.5,-187 238.5,-208 281.5,-208 281.5,-187 238.5,-187\" stroke=\"#000000\"/>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"249.5\" y=\"-193.8\">{0}</text>\n",
+       "<polygon fill=\"none\" points=\"281.5,-187 281.5,-208 328.5,-208 328.5,-187 281.5,-187\" stroke=\"#000000\"/>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"294.5\" y=\"-193.8\">{0}</text>\n",
+       "<polygon fill=\"none\" points=\"328.5,-187 328.5,-208 355.5,-208 355.5,-187 328.5,-187\" stroke=\"#000000\"/>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"331.5\" y=\"-193.8\">{1}</text>\n",
+       "<polygon fill=\"none\" points=\"355.5,-187 355.5,-208 398.5,-208 398.5,-187 355.5,-187\" stroke=\"#000000\"/>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"366.5\" y=\"-193.8\">{0}</text>\n",
+       "<polygon fill=\"none\" points=\"398.5,-187 398.5,-208 445.5,-208 445.5,-187 398.5,-187\" stroke=\"#000000\"/>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"411.5\" y=\"-193.8\">{0}</text>\n",
+       "<polygon fill=\"none\" points=\"445.5,-187 445.5,-208 488.5,-208 488.5,-187 445.5,-187\" stroke=\"#000000\"/>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"456.5\" y=\"-193.8\">{1}</text>\n",
+       "<polygon fill=\"none\" points=\"488.5,-187 488.5,-208 525.5,-208 525.5,-187 488.5,-187\" stroke=\"#000000\"/>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"491.5\" y=\"-193.8\">{0,1}</text>\n",
+       "<polygon fill=\"none\" points=\"525.5,-187 525.5,-208 545.5,-208 545.5,-187 525.5,-187\" stroke=\"#000000\"/>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"528.5\" y=\"-193.8\">{}</text>\n",
+       "<polygon fill=\"none\" points=\"545.5,-187 545.5,-208 572.5,-208 572.5,-187 545.5,-187\" stroke=\"#000000\"/>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"548.5\" y=\"-193.8\">{0}</text>\n",
+       "<polygon fill=\"none\" points=\"572.5,-187 572.5,-208 599.5,-208 599.5,-187 572.5,-187\" stroke=\"#000000\"/>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"575.5\" y=\"-193.8\">{0}</text>\n",
+       "<polygon fill=\"none\" points=\"177.5,-166 177.5,-187 238.5,-187 238.5,-166 177.5,-166\" stroke=\"#000000\"/>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"200\" y=\"-172.8\">dst</text>\n",
+       "<polygon fill=\"#ffff00\" points=\"238.5,-166 238.5,-187 281.5,-187 281.5,-166 238.5,-166\" stroke=\"transparent\"/>\n",
+       "<polygon fill=\"none\" points=\"238.5,-166 238.5,-187 281.5,-187 281.5,-166 238.5,-166\" stroke=\"#000000\"/>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"256.5\" y=\"-172.8\">0</text>\n",
+       "<polygon fill=\"#ffff00\" points=\"281.5,-166 281.5,-187 328.5,-187 328.5,-166 281.5,-166\" stroke=\"transparent\"/>\n",
+       "<polygon fill=\"none\" points=\"281.5,-166 281.5,-187 328.5,-187 328.5,-166 281.5,-166\" stroke=\"#000000\"/>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"301.5\" y=\"-172.8\">1</text>\n",
+       "<polygon fill=\"#ffc0cb\" points=\"328.5,-166 328.5,-187 355.5,-187 355.5,-166 328.5,-166\" stroke=\"transparent\"/>\n",
+       "<polygon fill=\"none\" points=\"328.5,-166 328.5,-187 355.5,-187 355.5,-166 328.5,-166\" stroke=\"#000000\"/>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"334.5\" y=\"-172.8\">~0</text>\n",
+       "<polygon fill=\"#ffff00\" points=\"355.5,-166 355.5,-187 398.5,-187 398.5,-166 355.5,-166\" stroke=\"transparent\"/>\n",
+       "<polygon fill=\"none\" points=\"355.5,-166 355.5,-187 398.5,-187 398.5,-166 355.5,-166\" stroke=\"#000000\"/>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"373.5\" y=\"-172.8\">0</text>\n",
+       "<polygon fill=\"#ffff00\" points=\"398.5,-166 398.5,-187 445.5,-187 445.5,-166 398.5,-166\" stroke=\"transparent\"/>\n",
+       "<polygon fill=\"none\" points=\"398.5,-166 398.5,-187 445.5,-187 445.5,-166 398.5,-166\" stroke=\"#000000\"/>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"418.5\" y=\"-172.8\">1</text>\n",
+       "<polygon fill=\"#ffff00\" points=\"445.5,-166 445.5,-187 488.5,-187 488.5,-166 445.5,-166\" stroke=\"transparent\"/>\n",
+       "<polygon fill=\"none\" points=\"445.5,-166 445.5,-187 488.5,-187 488.5,-166 445.5,-166\" stroke=\"#000000\"/>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"463.5\" y=\"-172.8\">1</text>\n",
+       "<polygon fill=\"#ffff00\" points=\"488.5,-166 488.5,-187 525.5,-187 525.5,-166 488.5,-166\" stroke=\"transparent\"/>\n",
+       "<polygon fill=\"none\" points=\"488.5,-166 488.5,-187 525.5,-187 525.5,-166 488.5,-166\" stroke=\"#000000\"/>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"503.5\" y=\"-172.8\">1</text>\n",
+       "<polygon fill=\"#ffff00\" points=\"525.5,-166 525.5,-187 545.5,-187 545.5,-166 525.5,-166\" stroke=\"transparent\"/>\n",
+       "<polygon fill=\"none\" points=\"525.5,-166 525.5,-187 545.5,-187 545.5,-166 525.5,-166\" stroke=\"#000000\"/>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"532\" y=\"-172.8\">0</text>\n",
+       "<polygon fill=\"#ffc0cb\" points=\"545.5,-166 545.5,-187 572.5,-187 572.5,-166 545.5,-166\" stroke=\"transparent\"/>\n",
+       "<polygon fill=\"none\" points=\"545.5,-166 545.5,-187 572.5,-187 572.5,-166 545.5,-166\" stroke=\"#000000\"/>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"551.5\" y=\"-172.8\">~3</text>\n",
+       "<polygon fill=\"#ffc0cb\" points=\"572.5,-166 572.5,-187 599.5,-187 599.5,-166 572.5,-166\" stroke=\"transparent\"/>\n",
+       "<polygon fill=\"none\" points=\"572.5,-166 572.5,-187 599.5,-187 599.5,-166 572.5,-166\" stroke=\"#000000\"/>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"578.5\" y=\"-172.8\">~0</text>\n",
+       "<polygon fill=\"none\" points=\"177.5,-145 177.5,-166 238.5,-166 238.5,-145 177.5,-145\" stroke=\"#000000\"/>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"180.5\" y=\"-151.8\">next_succ</text>\n",
+       "<polygon fill=\"#00ffff\" points=\"238.5,-145 238.5,-166 281.5,-166 281.5,-145 238.5,-145\" stroke=\"transparent\"/>\n",
+       "<polygon fill=\"none\" points=\"238.5,-145 238.5,-166 281.5,-166 281.5,-145 238.5,-145\" stroke=\"#000000\"/>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"256.5\" y=\"-151.8\">2</text>\n",
+       "<polygon fill=\"#00ffff\" points=\"281.5,-145 281.5,-166 328.5,-166 328.5,-145 281.5,-145\" stroke=\"transparent\"/>\n",
+       "<polygon fill=\"none\" points=\"281.5,-145 281.5,-166 328.5,-166 328.5,-145 281.5,-145\" stroke=\"#000000\"/>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"301.5\" y=\"-151.8\">3</text>\n",
+       "<polygon fill=\"none\" points=\"328.5,-145 328.5,-166 355.5,-166 355.5,-145 328.5,-145\" stroke=\"#000000\"/>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"338.5\" y=\"-151.8\">0</text>\n",
+       "<polygon fill=\"#00ffff\" points=\"355.5,-145 355.5,-166 398.5,-166 398.5,-145 355.5,-145\" stroke=\"transparent\"/>\n",
+       "<polygon fill=\"none\" points=\"355.5,-145 355.5,-166 398.5,-166 398.5,-145 355.5,-145\" stroke=\"#000000\"/>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"373.5\" y=\"-151.8\">5</text>\n",
+       "<polygon fill=\"#00ffff\" points=\"398.5,-145 398.5,-166 445.5,-166 445.5,-145 398.5,-145\" stroke=\"transparent\"/>\n",
+       "<polygon fill=\"none\" points=\"398.5,-145 398.5,-166 445.5,-166 445.5,-145 398.5,-145\" stroke=\"#000000\"/>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"418.5\" y=\"-151.8\">6</text>\n",
+       "<polygon fill=\"#00ffff\" points=\"445.5,-145 445.5,-166 488.5,-166 488.5,-145 445.5,-145\" stroke=\"transparent\"/>\n",
+       "<polygon fill=\"none\" points=\"445.5,-145 445.5,-166 488.5,-166 488.5,-145 445.5,-145\" stroke=\"#000000\"/>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"463.5\" y=\"-151.8\">7</text>\n",
+       "<polygon fill=\"none\" points=\"488.5,-145 488.5,-166 525.5,-166 525.5,-145 488.5,-145\" stroke=\"#000000\"/>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"503.5\" y=\"-151.8\">0</text>\n",
+       "<polygon fill=\"none\" points=\"525.5,-145 525.5,-166 545.5,-166 545.5,-145 525.5,-145\" stroke=\"#000000\"/>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"532\" y=\"-151.8\">0</text>\n",
+       "<polygon fill=\"#00ffff\" points=\"545.5,-145 545.5,-166 572.5,-166 572.5,-145 545.5,-145\" stroke=\"transparent\"/>\n",
+       "<polygon fill=\"none\" points=\"545.5,-145 545.5,-166 572.5,-166 572.5,-145 545.5,-145\" stroke=\"#000000\"/>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"552\" y=\"-151.8\">10</text>\n",
+       "<polygon fill=\"none\" points=\"572.5,-145 572.5,-166 599.5,-166 599.5,-145 572.5,-145\" stroke=\"#000000\"/>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"582.5\" y=\"-151.8\">0</text>\n",
+       "<polygon fill=\"none\" points=\"177.5,-124 177.5,-145 238.5,-145 238.5,-124 177.5,-124\" stroke=\"#000000\"/>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"200\" y=\"-130.8\">src</text>\n",
+       "<polygon fill=\"#ffff00\" points=\"238.5,-124 238.5,-145 281.5,-145 281.5,-124 238.5,-124\" stroke=\"transparent\"/>\n",
+       "<polygon fill=\"none\" points=\"238.5,-124 238.5,-145 281.5,-145 281.5,-124 238.5,-124\" stroke=\"#000000\"/>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"256.5\" y=\"-130.8\">0</text>\n",
+       "<polygon fill=\"#ffff00\" points=\"281.5,-124 281.5,-145 328.5,-145 328.5,-124 281.5,-124\" stroke=\"transparent\"/>\n",
+       "<polygon fill=\"none\" points=\"281.5,-124 281.5,-145 328.5,-145 328.5,-124 281.5,-124\" stroke=\"#000000\"/>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"301.5\" y=\"-130.8\">0</text>\n",
+       "<polygon fill=\"#ffff00\" points=\"328.5,-124 328.5,-145 355.5,-145 355.5,-124 328.5,-124\" stroke=\"transparent\"/>\n",
+       "<polygon fill=\"none\" points=\"328.5,-124 328.5,-145 355.5,-145 355.5,-124 328.5,-124\" stroke=\"#000000\"/>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"338.5\" y=\"-130.8\">0</text>\n",
+       "<polygon fill=\"#ffff00\" points=\"355.5,-124 355.5,-145 398.5,-145 398.5,-124 355.5,-124\" stroke=\"transparent\"/>\n",
+       "<polygon fill=\"none\" points=\"355.5,-124 355.5,-145 398.5,-145 398.5,-124 355.5,-124\" stroke=\"#000000\"/>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"373.5\" y=\"-130.8\">1</text>\n",
+       "<polygon fill=\"#ffff00\" points=\"398.5,-124 398.5,-145 445.5,-145 445.5,-124 398.5,-124\" stroke=\"transparent\"/>\n",
+       "<polygon fill=\"none\" points=\"398.5,-124 398.5,-145 445.5,-145 445.5,-124 398.5,-124\" stroke=\"#000000\"/>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"418.5\" y=\"-130.8\">1</text>\n",
+       "<polygon fill=\"#ffff00\" points=\"445.5,-124 445.5,-145 488.5,-145 488.5,-124 445.5,-124\" stroke=\"transparent\"/>\n",
+       "<polygon fill=\"none\" points=\"445.5,-124 445.5,-145 488.5,-145 488.5,-124 445.5,-124\" stroke=\"#000000\"/>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"463.5\" y=\"-130.8\">1</text>\n",
+       "<polygon fill=\"#ffff00\" points=\"488.5,-124 488.5,-145 525.5,-145 525.5,-124 488.5,-124\" stroke=\"transparent\"/>\n",
+       "<polygon fill=\"none\" points=\"488.5,-124 488.5,-145 525.5,-145 525.5,-124 488.5,-124\" stroke=\"#000000\"/>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"503.5\" y=\"-130.8\">1</text>\n",
+       "<polygon fill=\"#ffff00\" points=\"525.5,-124 525.5,-145 545.5,-145 545.5,-124 525.5,-124\" stroke=\"transparent\"/>\n",
+       "<polygon fill=\"none\" points=\"525.5,-124 525.5,-145 545.5,-145 545.5,-124 525.5,-124\" stroke=\"#000000\"/>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"532\" y=\"-130.8\">2</text>\n",
+       "<polygon fill=\"#ffff00\" points=\"545.5,-124 545.5,-145 572.5,-145 572.5,-124 545.5,-124\" stroke=\"transparent\"/>\n",
+       "<polygon fill=\"none\" points=\"545.5,-124 545.5,-145 572.5,-145 572.5,-124 545.5,-124\" stroke=\"#000000\"/>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"555.5\" y=\"-130.8\">3</text>\n",
+       "<polygon fill=\"#ffff00\" points=\"572.5,-124 572.5,-145 599.5,-145 599.5,-124 572.5,-124\" stroke=\"transparent\"/>\n",
+       "<polygon fill=\"none\" points=\"572.5,-124 572.5,-145 599.5,-145 599.5,-124 572.5,-124\" stroke=\"#000000\"/>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"582.5\" y=\"-130.8\">3</text>\n",
        "</g>\n",
        "<!-- dests -->\n",
        "<g class=\"node\" id=\"node3\">\n",
        "<title>dests</title>\n",
-       "<polygon fill=\"#ffc0cb\" points=\"535.5,-187 535.5,-208 584.5,-208 584.5,-187 535.5,-187\" stroke=\"transparent\"/>\n",
-       "<polyline fill=\"none\" points=\"535.5,-187 584.5,-187 \" stroke=\"#000000\"/>\n",
-       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"546\" y=\"-193.8\">dests</text>\n",
-       "<polygon fill=\"#ffc0cb\" points=\"584.5,-187 584.5,-208 605.5,-208 605.5,-187 584.5,-187\" stroke=\"transparent\"/>\n",
-       "<polyline fill=\"none\" points=\"584.5,-187 605.5,-187 \" stroke=\"#000000\"/>\n",
-       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"587.5\" y=\"-193.8\">~0</text>\n",
-       "<polyline fill=\"none\" points=\"605.5,-187 618.5,-187 \" stroke=\"#000000\"/>\n",
-       "<polyline fill=\"none\" points=\"618.5,-187 631.5,-187 \" stroke=\"#000000\"/>\n",
-       "<polygon fill=\"#ffc0cb\" points=\"631.5,-187 631.5,-208 652.5,-208 652.5,-187 631.5,-187\" stroke=\"transparent\"/>\n",
-       "<polyline fill=\"none\" points=\"631.5,-187 652.5,-187 \" stroke=\"#000000\"/>\n",
-       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"634.5\" y=\"-193.8\">~3</text>\n",
-       "<polyline fill=\"none\" points=\"652.5,-187 665.5,-187 \" stroke=\"#000000\"/>\n",
-       "<polyline fill=\"none\" points=\"665.5,-187 678.5,-187 \" stroke=\"#000000\"/>\n",
-       "<polygon fill=\"#ffc0cb\" points=\"678.5,-187 678.5,-208 699.5,-208 699.5,-187 678.5,-187\" stroke=\"transparent\"/>\n",
-       "<polyline fill=\"none\" points=\"678.5,-187 699.5,-187 \" stroke=\"#000000\"/>\n",
-       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"681.5\" y=\"-193.8\">~6</text>\n",
-       "<polyline fill=\"none\" points=\"699.5,-187 712.5,-187 \" stroke=\"#000000\"/>\n",
-       "<polyline fill=\"none\" points=\"712.5,-187 725.5,-187 \" stroke=\"#000000\"/>\n",
-       "<polyline fill=\"none\" points=\"725.5,-187 738.5,-187 \" stroke=\"#000000\"/>\n",
-       "<polygon fill=\"none\" points=\"535.5,-166 535.5,-187 584.5,-187 584.5,-166 535.5,-166\" stroke=\"#000000\"/>\n",
-       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"538.5\" y=\"-172.8\">#cnt/dst</text>\n",
-       "<polygon fill=\"none\" points=\"584.5,-166 584.5,-187 605.5,-187 605.5,-166 584.5,-166\" stroke=\"#000000\"/>\n",
-       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"588\" y=\"-172.8\">#2</text>\n",
-       "<polygon fill=\"#ffff00\" points=\"605.5,-166 605.5,-187 618.5,-187 618.5,-166 605.5,-166\" stroke=\"transparent\"/>\n",
-       "<polygon fill=\"none\" points=\"605.5,-166 605.5,-187 618.5,-187 618.5,-166 605.5,-166\" stroke=\"#000000\"/>\n",
-       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"608.5\" y=\"-172.8\">0</text>\n",
-       "<polygon fill=\"#ffff00\" points=\"618.5,-166 618.5,-187 631.5,-187 631.5,-166 618.5,-166\" stroke=\"transparent\"/>\n",
-       "<polygon fill=\"none\" points=\"618.5,-166 618.5,-187 631.5,-187 631.5,-166 618.5,-166\" stroke=\"#000000\"/>\n",
-       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"621.5\" y=\"-172.8\">3</text>\n",
-       "<polygon fill=\"none\" points=\"631.5,-166 631.5,-187 652.5,-187 652.5,-166 631.5,-166\" stroke=\"#000000\"/>\n",
-       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"635\" y=\"-172.8\">#2</text>\n",
-       "<polygon fill=\"#ffff00\" points=\"652.5,-166 652.5,-187 665.5,-187 665.5,-166 652.5,-166\" stroke=\"transparent\"/>\n",
-       "<polygon fill=\"none\" points=\"652.5,-166 652.5,-187 665.5,-187 665.5,-166 652.5,-166\" stroke=\"#000000\"/>\n",
-       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"655.5\" y=\"-172.8\">0</text>\n",
-       "<polygon fill=\"#ffff00\" points=\"665.5,-166 665.5,-187 678.5,-187 678.5,-166 665.5,-166\" stroke=\"transparent\"/>\n",
-       "<polygon fill=\"none\" points=\"665.5,-166 665.5,-187 678.5,-187 678.5,-166 665.5,-166\" stroke=\"#000000\"/>\n",
-       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"668.5\" y=\"-172.8\">1</text>\n",
-       "<polygon fill=\"none\" points=\"678.5,-166 678.5,-187 699.5,-187 699.5,-166 678.5,-166\" stroke=\"#000000\"/>\n",
-       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"682\" y=\"-172.8\">#3</text>\n",
-       "<polygon fill=\"#ffff00\" points=\"699.5,-166 699.5,-187 712.5,-187 712.5,-166 699.5,-166\" stroke=\"transparent\"/>\n",
-       "<polygon fill=\"none\" points=\"699.5,-166 699.5,-187 712.5,-187 712.5,-166 699.5,-166\" stroke=\"#000000\"/>\n",
-       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"702.5\" y=\"-172.8\">0</text>\n",
-       "<polygon fill=\"#ffff00\" points=\"712.5,-166 712.5,-187 725.5,-187 725.5,-166 712.5,-166\" stroke=\"transparent\"/>\n",
-       "<polygon fill=\"none\" points=\"712.5,-166 712.5,-187 725.5,-187 725.5,-166 712.5,-166\" stroke=\"#000000\"/>\n",
-       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"715.5\" y=\"-172.8\">1</text>\n",
-       "<polygon fill=\"#ffff00\" points=\"725.5,-166 725.5,-187 738.5,-187 738.5,-166 725.5,-166\" stroke=\"transparent\"/>\n",
-       "<polygon fill=\"none\" points=\"725.5,-166 725.5,-187 738.5,-187 738.5,-166 725.5,-166\" stroke=\"#000000\"/>\n",
-       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"728.5\" y=\"-172.8\">2</text>\n",
+       "<polygon fill=\"#ffc0cb\" points=\"634.5,-187 634.5,-208 683.5,-208 683.5,-187 634.5,-187\" stroke=\"transparent\"/>\n",
+       "<polyline fill=\"none\" points=\"634.5,-187 683.5,-187 \" stroke=\"#000000\"/>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"645\" y=\"-193.8\">dests</text>\n",
+       "<polygon fill=\"#ffc0cb\" points=\"683.5,-187 683.5,-208 704.5,-208 704.5,-187 683.5,-187\" stroke=\"transparent\"/>\n",
+       "<polyline fill=\"none\" points=\"683.5,-187 704.5,-187 \" stroke=\"#000000\"/>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"686.5\" y=\"-193.8\">~0</text>\n",
+       "<polyline fill=\"none\" points=\"704.5,-187 717.5,-187 \" stroke=\"#000000\"/>\n",
+       "<polyline fill=\"none\" points=\"717.5,-187 730.5,-187 \" stroke=\"#000000\"/>\n",
+       "<polygon fill=\"#ffc0cb\" points=\"730.5,-187 730.5,-208 751.5,-208 751.5,-187 730.5,-187\" stroke=\"transparent\"/>\n",
+       "<polyline fill=\"none\" points=\"730.5,-187 751.5,-187 \" stroke=\"#000000\"/>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"733.5\" y=\"-193.8\">~3</text>\n",
+       "<polyline fill=\"none\" points=\"751.5,-187 764.5,-187 \" stroke=\"#000000\"/>\n",
+       "<polyline fill=\"none\" points=\"764.5,-187 777.5,-187 \" stroke=\"#000000\"/>\n",
+       "<polygon fill=\"#ffc0cb\" points=\"777.5,-187 777.5,-208 798.5,-208 798.5,-187 777.5,-187\" stroke=\"transparent\"/>\n",
+       "<polyline fill=\"none\" points=\"777.5,-187 798.5,-187 \" stroke=\"#000000\"/>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"780.5\" y=\"-193.8\">~6</text>\n",
+       "<polyline fill=\"none\" points=\"798.5,-187 811.5,-187 \" stroke=\"#000000\"/>\n",
+       "<polyline fill=\"none\" points=\"811.5,-187 824.5,-187 \" stroke=\"#000000\"/>\n",
+       "<polyline fill=\"none\" points=\"824.5,-187 837.5,-187 \" stroke=\"#000000\"/>\n",
+       "<polygon fill=\"none\" points=\"634.5,-166 634.5,-187 683.5,-187 683.5,-166 634.5,-166\" stroke=\"#000000\"/>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"637.5\" y=\"-172.8\">#cnt/dst</text>\n",
+       "<polygon fill=\"none\" points=\"683.5,-166 683.5,-187 704.5,-187 704.5,-166 683.5,-166\" stroke=\"#000000\"/>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"687\" y=\"-172.8\">#2</text>\n",
+       "<polygon fill=\"#ffff00\" points=\"704.5,-166 704.5,-187 717.5,-187 717.5,-166 704.5,-166\" stroke=\"transparent\"/>\n",
+       "<polygon fill=\"none\" points=\"704.5,-166 704.5,-187 717.5,-187 717.5,-166 704.5,-166\" stroke=\"#000000\"/>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"707.5\" y=\"-172.8\">0</text>\n",
+       "<polygon fill=\"#ffff00\" points=\"717.5,-166 717.5,-187 730.5,-187 730.5,-166 717.5,-166\" stroke=\"transparent\"/>\n",
+       "<polygon fill=\"none\" points=\"717.5,-166 717.5,-187 730.5,-187 730.5,-166 717.5,-166\" stroke=\"#000000\"/>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"720.5\" y=\"-172.8\">3</text>\n",
+       "<polygon fill=\"none\" points=\"730.5,-166 730.5,-187 751.5,-187 751.5,-166 730.5,-166\" stroke=\"#000000\"/>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"734\" y=\"-172.8\">#2</text>\n",
+       "<polygon fill=\"#ffff00\" points=\"751.5,-166 751.5,-187 764.5,-187 764.5,-166 751.5,-166\" stroke=\"transparent\"/>\n",
+       "<polygon fill=\"none\" points=\"751.5,-166 751.5,-187 764.5,-187 764.5,-166 751.5,-166\" stroke=\"#000000\"/>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"754.5\" y=\"-172.8\">0</text>\n",
+       "<polygon fill=\"#ffff00\" points=\"764.5,-166 764.5,-187 777.5,-187 777.5,-166 764.5,-166\" stroke=\"transparent\"/>\n",
+       "<polygon fill=\"none\" points=\"764.5,-166 764.5,-187 777.5,-187 777.5,-166 764.5,-166\" stroke=\"#000000\"/>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"767.5\" y=\"-172.8\">1</text>\n",
+       "<polygon fill=\"none\" points=\"777.5,-166 777.5,-187 798.5,-187 798.5,-166 777.5,-166\" stroke=\"#000000\"/>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"781\" y=\"-172.8\">#3</text>\n",
+       "<polygon fill=\"#ffff00\" points=\"798.5,-166 798.5,-187 811.5,-187 811.5,-166 798.5,-166\" stroke=\"transparent\"/>\n",
+       "<polygon fill=\"none\" points=\"798.5,-166 798.5,-187 811.5,-187 811.5,-166 798.5,-166\" stroke=\"#000000\"/>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"801.5\" y=\"-172.8\">0</text>\n",
+       "<polygon fill=\"#ffff00\" points=\"811.5,-166 811.5,-187 824.5,-187 824.5,-166 811.5,-166\" stroke=\"transparent\"/>\n",
+       "<polygon fill=\"none\" points=\"811.5,-166 811.5,-187 824.5,-187 824.5,-166 811.5,-166\" stroke=\"#000000\"/>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"814.5\" y=\"-172.8\">1</text>\n",
+       "<polygon fill=\"#ffff00\" points=\"824.5,-166 824.5,-187 837.5,-187 837.5,-166 824.5,-166\" stroke=\"transparent\"/>\n",
+       "<polygon fill=\"none\" points=\"824.5,-166 824.5,-187 837.5,-187 837.5,-166 824.5,-166\" stroke=\"#000000\"/>\n",
+       "<text fill=\"#000000\" font-family=\"Times,serif\" font-size=\"14.00\" text-anchor=\"start\" x=\"827.5\" y=\"-172.8\">2</text>\n",
        "</g>\n",
        "<!-- meta -->\n",
        "<g class=\"node\" id=\"node4\">\n",
@@ -5011,7 +5302,7 @@
        "</svg>\n"
       ],
       "text/plain": [
-       "<spot.twa_graph; proxy of <Swig Object of type 'std::shared_ptr< spot::twa_graph > *' at 0x7f616c0b3bd0> >"
+       "<spot.twa_graph; proxy of <Swig Object of type 'std::shared_ptr< spot::twa_graph > *' at 0x7f2950267270> >"
       ]
      },
      "metadata": {},
@@ -5302,7 +5593,7 @@
        "</svg>\n"
       ],
       "text/plain": [
-       "<spot.twa_graph; proxy of <Swig Object of type 'std::shared_ptr< spot::twa_graph > *' at 0x7f616c0b3bd0> >"
+       "<spot.twa_graph; proxy of <Swig Object of type 'std::shared_ptr< spot::twa_graph > *' at 0x7f2950267270> >"
       ]
      },
      "metadata": {},
@@ -5511,7 +5802,7 @@
    "name": "python",
    "nbconvert_exporter": "python",
    "pygments_lexer": "ipython3",
-   "version": "3.6.6"
+   "version": "3.6.4"
   }
  },
  "nbformat": 4,