diff --git a/tests/python/satmin.ipynb b/tests/python/satmin.ipynb
index 74ba91ed9..a34f9d170 100644
--- a/tests/python/satmin.ipynb
+++ b/tests/python/satmin.ipynb
@@ -256,7 +256,7 @@
        "</svg>\n"
       ],
       "text/plain": [
-       "<spot.impl.twa_graph; proxy of <Swig Object of type 'std::shared_ptr< spot::twa_graph > *' at 0x7feac4659ea0> >"
+       "<spot.impl.twa_graph; proxy of <Swig Object of type 'std::shared_ptr< spot::twa_graph > *' at 0x7f7b085aaea0> >"
       ]
      },
      "execution_count": 3,
@@ -444,7 +444,7 @@
        "</svg>\n"
       ],
       "text/plain": [
-       "<spot.impl.twa_graph; proxy of <Swig Object of type 'std::shared_ptr< spot::twa_graph > *' at 0x7feac4610ab0> >"
+       "<spot.impl.twa_graph; proxy of <Swig Object of type 'std::shared_ptr< spot::twa_graph > *' at 0x7f7b0861fc90> >"
       ]
      },
      "execution_count": 4,
@@ -680,7 +680,7 @@
        "</svg>\n"
       ],
       "text/plain": [
-       "<spot.impl.twa_graph; proxy of <Swig Object of type 'std::shared_ptr< spot::twa_graph > *' at 0x7feac4610a50> >"
+       "<spot.impl.twa_graph; proxy of <Swig Object of type 'std::shared_ptr< spot::twa_graph > *' at 0x7f7b085b5060> >"
       ]
      },
      "execution_count": 5,
@@ -913,7 +913,7 @@
        "</svg>\n"
       ],
       "text/plain": [
-       "<spot.impl.twa_graph; proxy of <Swig Object of type 'std::shared_ptr< spot::twa_graph > *' at 0x7feac4610c30> >"
+       "<spot.impl.twa_graph; proxy of <Swig Object of type 'std::shared_ptr< spot::twa_graph > *' at 0x7f7b08561b70> >"
       ]
      },
      "execution_count": 6,
@@ -934,56 +934,6 @@
     "large"
    ]
   },
-  {
-   "cell_type": "code",
-   "execution_count": 7,
-   "metadata": {},
-   "outputs": [
-    {
-     "name": "stdout",
-     "output_type": "stream",
-     "text": [
-      "HOA: v1\n",
-      "name: \"& | F G a F b F G c\"\n",
-      "States: 6\n",
-      "Start: 5\n",
-      "AP: 3 \"a\" \"c\" \"b\"\n",
-      "acc-name: Rabin 2\n",
-      "Acceptance: 4 (Fin(0) & Inf(1)) | (Fin(2) & Inf(3))\n",
-      "properties: trans-labels explicit-labels state-acc complete\n",
-      "properties: deterministic stutter-invariant\n",
-      "--BODY--\n",
-      "State: 0 {1 3}\n",
-      "[0&1] 0\n",
-      "[!0&1] 1\n",
-      "[!1] 4\n",
-      "State: 1 {0 3}\n",
-      "[1] 1\n",
-      "[!1] 4\n",
-      "State: 2 {1 2}\n",
-      "[1] 2\n",
-      "[!1] 4\n",
-      "State: 3 {1 2}\n",
-      "[0&1&2] 0\n",
-      "[0&1&!2] 3\n",
-      "[!0&2 | !1&2] 4\n",
-      "[!0&!2 | !1&!2] 5\n",
-      "State: 4 {0 2}\n",
-      "[1] 2\n",
-      "[!1] 4\n",
-      "State: 5 {0 2}\n",
-      "[1&2] 2\n",
-      "[0&1&!2] 3\n",
-      "[!1&2] 4\n",
-      "[!0&!2 | !1&!2] 5\n",
-      "--END--\n"
-     ]
-    }
-   ],
-   "source": [
-    "print(large.to_str())"
-   ]
-  },
   {
    "cell_type": "markdown",
    "metadata": {},
@@ -993,7 +943,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 8,
+   "execution_count": 7,
    "metadata": {},
    "outputs": [
     {
@@ -1112,10 +1062,10 @@
        "</svg>\n"
       ],
       "text/plain": [
-       "<spot.impl.twa_graph; proxy of <Swig Object of type 'std::shared_ptr< spot::twa_graph > *' at 0x7feac46105a0> >"
+       "<spot.impl.twa_graph; proxy of <Swig Object of type 'std::shared_ptr< spot::twa_graph > *' at 0x7f7b08561b40> >"
       ]
      },
-     "execution_count": 8,
+     "execution_count": 7,
      "metadata": {},
      "output_type": "execute_result"
     }
@@ -1133,7 +1083,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 9,
+   "execution_count": 8,
    "metadata": {},
    "outputs": [
     {
@@ -1284,10 +1234,10 @@
        "</svg>\n"
       ],
       "text/plain": [
-       "<spot.impl.twa_graph; proxy of <Swig Object of type 'std::shared_ptr< spot::twa_graph > *' at 0x7feac4610a20> >"
+       "<spot.impl.twa_graph; proxy of <Swig Object of type 'std::shared_ptr< spot::twa_graph > *' at 0x7f7b08561c00> >"
       ]
      },
-     "execution_count": 9,
+     "execution_count": 8,
      "metadata": {},
      "output_type": "execute_result"
     }
@@ -1305,7 +1255,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 10,
+   "execution_count": 9,
    "metadata": {},
    "outputs": [
     {
@@ -1450,10 +1400,10 @@
        "</svg>\n"
       ],
       "text/plain": [
-       "<spot.impl.twa_graph; proxy of <Swig Object of type 'std::shared_ptr< spot::twa_graph > *' at 0x7feac4610b70> >"
+       "<spot.impl.twa_graph; proxy of <Swig Object of type 'std::shared_ptr< spot::twa_graph > *' at 0x7f7b08561bd0> >"
       ]
      },
-     "execution_count": 10,
+     "execution_count": 9,
      "metadata": {},
      "output_type": "execute_result"
     }
@@ -1475,7 +1425,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 11,
+   "execution_count": 10,
    "metadata": {},
    "outputs": [
     {
@@ -1522,7 +1472,7 @@
        "      <td>NaN</td>\n",
        "      <td>1428</td>\n",
        "      <td>73430</td>\n",
-       "      <td>3</td>\n",
+       "      <td>4</td>\n",
        "      <td>0</td>\n",
        "      <td>1</td>\n",
        "      <td>0</td>\n",
@@ -1536,9 +1486,9 @@
        "      <td>40</td>\n",
        "      <td>3960</td>\n",
        "      <td>336307</td>\n",
-       "      <td>12</td>\n",
+       "      <td>13</td>\n",
        "      <td>1</td>\n",
-       "      <td>20</td>\n",
+       "      <td>19</td>\n",
        "      <td>0</td>\n",
        "    </tr>\n",
        "    <tr>\n",
@@ -1550,7 +1500,7 @@
        "      <td>32</td>\n",
        "      <td>2008</td>\n",
        "      <td>116372</td>\n",
-       "      <td>4</td>\n",
+       "      <td>5</td>\n",
        "      <td>0</td>\n",
        "      <td>4</td>\n",
        "      <td>0</td>\n",
@@ -1566,9 +1516,9 @@
        "2            5             4                4    12          32      2008   \n",
        "\n",
        "  clauses enc.user enc.sys sat.user sat.sys  \n",
-       "0   73430        3       0        1       0  \n",
-       "1  336307       12       1       20       0  \n",
-       "2  116372        4       0        4       0  "
+       "0   73430        4       0        1       0  \n",
+       "1  336307       13       1       19       0  \n",
+       "2  116372        5       0        4       0  "
       ]
      },
      "metadata": {},
@@ -1716,10 +1666,10 @@
        "</svg>\n"
       ],
       "text/plain": [
-       "<spot.impl.twa_graph; proxy of <Swig Object of type 'std::shared_ptr< spot::twa_graph > *' at 0x7feac8bff780> >"
+       "<spot.impl.twa_graph; proxy of <Swig Object of type 'std::shared_ptr< spot::twa_graph > *' at 0x7f7b0cb8d6f0> >"
       ]
      },
-     "execution_count": 11,
+     "execution_count": 10,
      "metadata": {},
      "output_type": "execute_result"
     }
@@ -1737,7 +1687,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 12,
+   "execution_count": 11,
    "metadata": {},
    "outputs": [
     {
@@ -1784,7 +1734,7 @@
        "      <td>NaN</td>\n",
        "      <td>483</td>\n",
        "      <td>24470</td>\n",
-       "      <td>1</td>\n",
+       "      <td>2</td>\n",
        "      <td>0</td>\n",
        "      <td>0</td>\n",
        "      <td>0</td>\n",
@@ -1798,9 +1748,9 @@
        "      <td>40</td>\n",
        "      <td>1335</td>\n",
        "      <td>111187</td>\n",
-       "      <td>4</td>\n",
+       "      <td>5</td>\n",
        "      <td>0</td>\n",
-       "      <td>2</td>\n",
+       "      <td>4</td>\n",
        "      <td>0</td>\n",
        "    </tr>\n",
        "    <tr>\n",
@@ -1812,7 +1762,7 @@
        "      <td>32</td>\n",
        "      <td>856</td>\n",
        "      <td>57332</td>\n",
-       "      <td>2</td>\n",
+       "      <td>3</td>\n",
        "      <td>0</td>\n",
        "      <td>1</td>\n",
        "      <td>0</td>\n",
@@ -1828,9 +1778,9 @@
        "2            2             4                4    12          32       856   \n",
        "\n",
        "  clauses enc.user enc.sys sat.user sat.sys  \n",
-       "0   24470        1       0        0       0  \n",
-       "1  111187        4       0        2       0  \n",
-       "2   57332        2       0        1       0  "
+       "0   24470        2       0        0       0  \n",
+       "1  111187        5       0        4       0  \n",
+       "2   57332        3       0        1       0  "
       ]
      },
      "metadata": {},
@@ -1978,10 +1928,10 @@
        "</svg>\n"
       ],
       "text/plain": [
-       "<spot.impl.twa_graph; proxy of <Swig Object of type 'std::shared_ptr< spot::twa_graph > *' at 0x7feac8bffb40> >"
+       "<spot.impl.twa_graph; proxy of <Swig Object of type 'std::shared_ptr< spot::twa_graph > *' at 0x7f7b0cb8dc00> >"
       ]
      },
-     "execution_count": 12,
+     "execution_count": 11,
      "metadata": {},
      "output_type": "execute_result"
     }
@@ -2001,7 +1951,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 13,
+   "execution_count": 12,
    "metadata": {},
    "outputs": [
     {
@@ -2048,8 +1998,8 @@
        "      <td>40</td>\n",
        "      <td>3050</td>\n",
        "      <td>437037</td>\n",
-       "      <td>16</td>\n",
-       "      <td>1</td>\n",
+       "      <td>20</td>\n",
+       "      <td>0</td>\n",
        "      <td>17</td>\n",
        "      <td>0</td>\n",
        "    </tr>\n",
@@ -2062,9 +2012,9 @@
        "      <td>16</td>\n",
        "      <td>488</td>\n",
        "      <td>28449</td>\n",
-       "      <td>1</td>\n",
+       "      <td>2</td>\n",
+       "      <td>0</td>\n",
        "      <td>0</td>\n",
-       "      <td>1</td>\n",
        "      <td>0</td>\n",
        "    </tr>\n",
        "    <tr>\n",
@@ -2092,8 +2042,8 @@
        "2            2             1              NaN   NaN         NaN        68   \n",
        "\n",
        "  clauses enc.user enc.sys sat.user sat.sys  \n",
-       "0  437037       16       1       17       0  \n",
-       "1   28449        1       0        1       0  \n",
+       "0  437037       20       0       17       0  \n",
+       "1   28449        2       0        0       0  \n",
        "2    1285        0       0        0       0  "
       ]
      },
@@ -2192,10 +2142,10 @@
        "</svg>\n"
       ],
       "text/plain": [
-       "<spot.impl.twa_graph; proxy of <Swig Object of type 'std::shared_ptr< spot::twa_graph > *' at 0x7feac8bffd80> >"
+       "<spot.impl.twa_graph; proxy of <Swig Object of type 'std::shared_ptr< spot::twa_graph > *' at 0x7f7b0cb8dd50> >"
       ]
      },
-     "execution_count": 13,
+     "execution_count": 12,
      "metadata": {},
      "output_type": "execute_result"
     }
@@ -2213,7 +2163,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 14,
+   "execution_count": 13,
    "metadata": {},
    "outputs": [
     {
@@ -2260,9 +2210,9 @@
        "      <td>48</td>\n",
        "      <td>3894</td>\n",
        "      <td>258719</td>\n",
-       "      <td>8</td>\n",
+       "      <td>9</td>\n",
        "      <td>0</td>\n",
-       "      <td>7</td>\n",
+       "      <td>6</td>\n",
        "      <td>0</td>\n",
        "    </tr>\n",
        "    <tr>\n",
@@ -2274,7 +2224,7 @@
        "      <td>40</td>\n",
        "      <td>2005</td>\n",
        "      <td>106302</td>\n",
-       "      <td>3</td>\n",
+       "      <td>5</td>\n",
        "      <td>0</td>\n",
        "      <td>2</td>\n",
        "      <td>0</td>\n",
@@ -2290,7 +2240,7 @@
        "      <td>24632</td>\n",
        "      <td>1</td>\n",
        "      <td>0</td>\n",
-       "      <td>0</td>\n",
+       "      <td>1</td>\n",
        "      <td>0</td>\n",
        "    </tr>\n",
        "    <tr>\n",
@@ -2302,7 +2252,7 @@
        "      <td>NaN</td>\n",
        "      <td>363</td>\n",
        "      <td>10553</td>\n",
-       "      <td>1</td>\n",
+       "      <td>0</td>\n",
        "      <td>0</td>\n",
        "      <td>0</td>\n",
        "      <td>0</td>\n",
@@ -2319,10 +2269,10 @@
        "3            4             3              NaN   NaN         NaN       363   \n",
        "\n",
        "  clauses enc.user enc.sys sat.user sat.sys  \n",
-       "0  258719        8       0        7       0  \n",
-       "1  106302        3       0        2       0  \n",
-       "2   24632        1       0        0       0  \n",
-       "3   10553        1       0        0       0  "
+       "0  258719        9       0        6       0  \n",
+       "1  106302        5       0        2       0  \n",
+       "2   24632        1       0        1       0  \n",
+       "3   10553        0       0        0       0  "
       ]
      },
      "metadata": {},
@@ -2459,10 +2409,10 @@
        "</svg>\n"
       ],
       "text/plain": [
-       "<spot.impl.twa_graph; proxy of <Swig Object of type 'std::shared_ptr< spot::twa_graph > *' at 0x7feac8bffed0> >"
+       "<spot.impl.twa_graph; proxy of <Swig Object of type 'std::shared_ptr< spot::twa_graph > *' at 0x7f7b0cb8dde0> >"
       ]
      },
-     "execution_count": 14,
+     "execution_count": 13,
      "metadata": {},
      "output_type": "execute_result"
     }
@@ -2493,7 +2443,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 15,
+   "execution_count": 14,
    "metadata": {},
    "outputs": [
     {
@@ -2540,7 +2490,7 @@
        "      <td>NaN</td>\n",
        "      <td>3899</td>\n",
        "      <td>258963</td>\n",
-       "      <td>8</td>\n",
+       "      <td>10</td>\n",
        "      <td>0</td>\n",
        "      <td>3</td>\n",
        "      <td>0</td>\n",
@@ -2570,7 +2520,7 @@
        "      <td>258963</td>\n",
        "      <td>0</td>\n",
        "      <td>0</td>\n",
-       "      <td>1</td>\n",
+       "      <td>0</td>\n",
        "      <td>0</td>\n",
        "    </tr>\n",
        "  </tbody>\n",
@@ -2584,9 +2534,9 @@
        "2            6             4                4    11          32      3899   \n",
        "\n",
        "  clauses enc.user enc.sys sat.user sat.sys  \n",
-       "0  258963        8       0        3       0  \n",
+       "0  258963       10       0        3       0  \n",
        "1  258963        0       0        1       0  \n",
-       "2  258963        0       0        1       0  "
+       "2  258963        0       0        0       0  "
       ]
      },
      "metadata": {},
@@ -2723,10 +2673,10 @@
        "</svg>\n"
       ],
       "text/plain": [
-       "<spot.impl.twa_graph; proxy of <Swig Object of type 'std::shared_ptr< spot::twa_graph > *' at 0x7feac8bffe70> >"
+       "<spot.impl.twa_graph; proxy of <Swig Object of type 'std::shared_ptr< spot::twa_graph > *' at 0x7f7b08561690> >"
       ]
      },
-     "execution_count": 15,
+     "execution_count": 14,
      "metadata": {},
      "output_type": "execute_result"
     }
@@ -2746,7 +2696,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 16,
+   "execution_count": 15,
    "metadata": {},
    "outputs": [
     {
@@ -2793,7 +2743,7 @@
        "      <td>48</td>\n",
        "      <td>3894</td>\n",
        "      <td>258719</td>\n",
-       "      <td>9</td>\n",
+       "      <td>10</td>\n",
        "      <td>0</td>\n",
        "      <td>6</td>\n",
        "      <td>0</td>\n",
@@ -2809,7 +2759,7 @@
        "      <td>258767</td>\n",
        "      <td>0</td>\n",
        "      <td>0</td>\n",
-       "      <td>1</td>\n",
+       "      <td>0</td>\n",
        "      <td>0</td>\n",
        "    </tr>\n",
        "    <tr>\n",
@@ -2821,7 +2771,7 @@
        "      <td>32</td>\n",
        "      <td>3894</td>\n",
        "      <td>258815</td>\n",
-       "      <td>0</td>\n",
+       "      <td>1</td>\n",
        "      <td>0</td>\n",
        "      <td>0</td>\n",
        "      <td>0</td>\n",
@@ -2852,9 +2802,9 @@
        "3            4             3              NaN   NaN         NaN       363   \n",
        "\n",
        "  clauses enc.user enc.sys sat.user sat.sys  \n",
-       "0  258719        9       0        6       0  \n",
-       "1  258767        0       0        1       0  \n",
-       "2  258815        0       0        0       0  \n",
+       "0  258719       10       0        6       0  \n",
+       "1  258767        0       0        0       0  \n",
+       "2  258815        1       0        0       0  \n",
        "3   10325        0       0        1       0  "
       ]
      },
@@ -2985,10 +2935,10 @@
        "</svg>\n"
       ],
       "text/plain": [
-       "<spot.impl.twa_graph; proxy of <Swig Object of type 'std::shared_ptr< spot::twa_graph > *' at 0x7feac8ba9150> >"
+       "<spot.impl.twa_graph; proxy of <Swig Object of type 'std::shared_ptr< spot::twa_graph > *' at 0x7f7b08561ab0> >"
       ]
      },
-     "execution_count": 16,
+     "execution_count": 15,
      "metadata": {},
      "output_type": "execute_result"
     }
@@ -3010,7 +2960,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 17,
+   "execution_count": 16,
    "metadata": {},
    "outputs": [
     {
@@ -3137,7 +3087,7 @@
        "</svg>\n"
       ],
       "text/plain": [
-       "<spot.impl.twa_graph; proxy of <Swig Object of type 'std::shared_ptr< spot::twa_graph > *' at 0x7feac8ba9270> >"
+       "<spot.impl.twa_graph; proxy of <Swig Object of type 'std::shared_ptr< spot::twa_graph > *' at 0x7f7b0cb610f0> >"
       ]
      },
      "metadata": {},
@@ -3188,9 +3138,9 @@
        "      <td>48</td>\n",
        "      <td>3894</td>\n",
        "      <td>258719</td>\n",
-       "      <td>9</td>\n",
+       "      <td>10</td>\n",
        "      <td>0</td>\n",
-       "      <td>6</td>\n",
+       "      <td>5</td>\n",
        "      <td>0</td>\n",
        "      <td>HOA: v1 States: 6 Start: 0 AP: 3 \"a\" \"c\" \"b\" a...</td>\n",
        "    </tr>\n",
@@ -3205,7 +3155,7 @@
        "      <td>258767</td>\n",
        "      <td>0</td>\n",
        "      <td>0</td>\n",
-       "      <td>1</td>\n",
+       "      <td>0</td>\n",
        "      <td>0</td>\n",
        "      <td>HOA: v1 States: 5 Start: 0 AP: 3 \"a\" \"c\" \"b\" a...</td>\n",
        "    </tr>\n",
@@ -3235,7 +3185,7 @@
        "      <td>10325</td>\n",
        "      <td>0</td>\n",
        "      <td>0</td>\n",
-       "      <td>0</td>\n",
+       "      <td>1</td>\n",
        "      <td>0</td>\n",
        "      <td>NaN</td>\n",
        "    </tr>\n",
@@ -3251,10 +3201,10 @@
        "3            4             3              NaN   NaN         NaN       363   \n",
        "\n",
        "  clauses enc.user enc.sys sat.user sat.sys  \\\n",
-       "0  258719        9       0        6       0   \n",
-       "1  258767        0       0        1       0   \n",
+       "0  258719       10       0        5       0   \n",
+       "1  258767        0       0        0       0   \n",
        "2  258815        0       0        0       0   \n",
-       "3   10325        0       0        0       0   \n",
+       "3   10325        0       0        1       0   \n",
        "\n",
        "                                           automaton  \n",
        "0  HOA: v1 States: 6 Start: 0 AP: 3 \"a\" \"c\" \"b\" a...  \n",
@@ -3282,7 +3232,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 18,
+   "execution_count": 17,
    "metadata": {},
    "outputs": [
     {
@@ -3492,7 +3442,7 @@
        "</svg>\n"
       ],
       "text/plain": [
-       "<spot.impl.twa_graph; proxy of <Swig Object of type 'std::shared_ptr< spot::twa_graph > *' at 0x7feac8ba91b0> >"
+       "<spot.impl.twa_graph; proxy of <Swig Object of type 'std::shared_ptr< spot::twa_graph > *' at 0x7f7b0cb61300> >"
       ]
      },
      "metadata": {},
@@ -3664,7 +3614,7 @@
        "</svg>\n"
       ],
       "text/plain": [
-       "<spot.impl.twa_graph; proxy of <Swig Object of type 'std::shared_ptr< spot::twa_graph > *' at 0x7feac8ba92a0> >"
+       "<spot.impl.twa_graph; proxy of <Swig Object of type 'std::shared_ptr< spot::twa_graph > *' at 0x7f7b0cb613f0> >"
       ]
      },
      "metadata": {},
@@ -3801,7 +3751,7 @@
        "</svg>\n"
       ],
       "text/plain": [
-       "<spot.impl.twa_graph; proxy of <Swig Object of type 'std::shared_ptr< spot::twa_graph > *' at 0x7feac8ba9090> >"
+       "<spot.impl.twa_graph; proxy of <Swig Object of type 'std::shared_ptr< spot::twa_graph > *' at 0x7f7b0cb61480> >"
       ]
      },
      "metadata": {},
@@ -3828,7 +3778,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 19,
+   "execution_count": 18,
    "metadata": {},
    "outputs": [
     {
@@ -4033,10 +3983,10 @@
        "</svg>\n"
       ],
       "text/plain": [
-       "<spot.impl.twa_graph; proxy of <Swig Object of type 'std::shared_ptr< spot::twa_graph > *' at 0x7feac4610c30> >"
+       "<spot.impl.twa_graph; proxy of <Swig Object of type 'std::shared_ptr< spot::twa_graph > *' at 0x7f7b08561b70> >"
       ]
      },
-     "execution_count": 19,
+     "execution_count": 18,
      "metadata": {},
      "output_type": "execute_result"
     }
@@ -4054,7 +4004,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 20,
+   "execution_count": 19,
    "metadata": {},
    "outputs": [
     {
@@ -4101,9 +4051,9 @@
        "      <td>NaN</td>\n",
        "      <td>975</td>\n",
        "      <td>32912</td>\n",
-       "      <td>2</td>\n",
-       "      <td>0</td>\n",
+       "      <td>1</td>\n",
        "      <td>0</td>\n",
+       "      <td>1</td>\n",
        "      <td>0</td>\n",
        "    </tr>\n",
        "    <tr>\n",
@@ -4115,8 +4065,8 @@
        "      <td>32</td>\n",
        "      <td>2705</td>\n",
        "      <td>150257</td>\n",
-       "      <td>5</td>\n",
-       "      <td>1</td>\n",
+       "      <td>6</td>\n",
+       "      <td>0</td>\n",
        "      <td>3</td>\n",
        "      <td>0</td>\n",
        "    </tr>\n",
@@ -4130,8 +4080,8 @@
        "1            6             5                4    10          32      2705   \n",
        "\n",
        "  clauses enc.user enc.sys sat.user sat.sys  \n",
-       "0   32912        2       0        0       0  \n",
-       "1  150257        5       1        3       0  "
+       "0   32912        1       0        1       0  \n",
+       "1  150257        6       0        3       0  "
       ]
      },
      "metadata": {},
@@ -4261,10 +4211,10 @@
        "</svg>\n"
       ],
       "text/plain": [
-       "<spot.impl.twa_graph; proxy of <Swig Object of type 'std::shared_ptr< spot::twa_graph > *' at 0x7feac8ba9330> >"
+       "<spot.impl.twa_graph; proxy of <Swig Object of type 'std::shared_ptr< spot::twa_graph > *' at 0x7f7b0cb61510> >"
       ]
      },
-     "execution_count": 20,
+     "execution_count": 19,
      "metadata": {},
      "output_type": "execute_result"
     }
@@ -4276,7 +4226,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 21,
+   "execution_count": 20,
    "metadata": {},
    "outputs": [
     {
@@ -4325,7 +4275,7 @@
        "      <td>77340</td>\n",
        "      <td>3</td>\n",
        "      <td>0</td>\n",
-       "      <td>2</td>\n",
+       "      <td>1</td>\n",
        "      <td>0</td>\n",
        "    </tr>\n",
        "    <tr>\n",
@@ -4353,7 +4303,7 @@
        "      <td>10496</td>\n",
        "      <td>0</td>\n",
        "      <td>0</td>\n",
-       "      <td>1</td>\n",
+       "      <td>0</td>\n",
        "      <td>0</td>\n",
        "    </tr>\n",
        "  </tbody>\n",
@@ -4367,9 +4317,9 @@
        "2            4             3              NaN   NaN         NaN       363   \n",
        "\n",
        "  clauses enc.user enc.sys sat.user sat.sys  \n",
-       "0   77340        3       0        2       0  \n",
+       "0   77340        3       0        1       0  \n",
        "1    3129        0       0        0       0  \n",
-       "2   10496        0       0        1       0  "
+       "2   10496        0       0        0       0  "
       ]
      },
      "metadata": {},
@@ -4513,10 +4463,10 @@
        "</svg>\n"
       ],
       "text/plain": [
-       "<spot.impl.twa_graph; proxy of <Swig Object of type 'std::shared_ptr< spot::twa_graph > *' at 0x7feac8ba9630> >"
+       "<spot.impl.twa_graph; proxy of <Swig Object of type 'std::shared_ptr< spot::twa_graph > *' at 0x7f7b085aaf30> >"
       ]
      },
-     "execution_count": 21,
+     "execution_count": 20,
      "metadata": {},
      "output_type": "execute_result"
     }
@@ -4537,7 +4487,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 22,
+   "execution_count": 21,
    "metadata": {},
    "outputs": [
     {
@@ -4586,7 +4536,7 @@
        "      <td>135032</td>\n",
        "      <td>5</td>\n",
        "      <td>0</td>\n",
-       "      <td>3</td>\n",
+       "      <td>2</td>\n",
        "      <td>0</td>\n",
        "    </tr>\n",
        "  </tbody>\n",
@@ -4598,7 +4548,7 @@
        "0            2             7                5    14          40      1869   \n",
        "\n",
        "  clauses enc.user enc.sys sat.user sat.sys  \n",
-       "0  135032        5       0        3       0  "
+       "0  135032        5       0        2       0  "
       ]
      },
      "metadata": {},
@@ -4763,10 +4713,10 @@
        "</svg>\n"
       ],
       "text/plain": [
-       "<spot.impl.twa_graph; proxy of <Swig Object of type 'std::shared_ptr< spot::twa_graph > *' at 0x7feac8ba9660> >"
+       "<spot.impl.twa_graph; proxy of <Swig Object of type 'std::shared_ptr< spot::twa_graph > *' at 0x7f7b0cb61660> >"
       ]
      },
-     "execution_count": 22,
+     "execution_count": 21,
      "metadata": {},
      "output_type": "execute_result"
     }