rename src/tgbaalgos/ as src/twaalgos/

Automatic mass renaming. * src/tgbaalgos/: Rename as... * src/twaalgos/: ... this. * README, configure.ac, iface/ltsmin/modelcheck.cc, src/Makefile.am, src/bin/autfilt.cc, src/bin/common_aoutput.cc, src/bin/common_aoutput.hh, src/bin/common_output.hh, src/bin/common_post.hh, src/bin/dstar2tgba.cc, src/bin/ltl2tgba.cc, src/bin/ltl2tgta.cc, src/bin/ltlcross.cc, src/bin/ltldo.cc, src/bin/ltlfilt.cc, src/bin/randaut.cc, src/dstarparse/dra2ba.cc, src/dstarparse/nra2nba.cc, src/dstarparse/nsa2tgba.cc, src/graphtest/twagraph.cc, src/kripke/kripkeprint.cc, src/ltlvisit/contain.cc, src/ltlvisit/contain.hh, src/ltlvisit/exclusive.cc, src/taalgos/emptinessta.hh, src/tgbatest/checkpsl.cc, src/tgbatest/checkta.cc, src/tgbatest/complementation.cc, src/tgbatest/emptchk.cc, src/tgbatest/ltl2tgba.cc, src/tgbatest/ltlprod.cc, src/tgbatest/randtgba.cc, src/tgbatest/taatgba.cc, src/twa/twa.cc, src/twa/twagraph.hh, src/twa/twasafracomplement.cc, wrap/python/spot_impl.i: Adjust.
2015-04-22 17:52:27 +02:00 · 2015-04-22 17:52:27 +02:00 · de529df59f
commit de529df59f
parent 703fbd0e99
159 changed files with 260 additions and 272 deletions
--- a/src/twaalgos/canonicalize.cc
+++ b/src/twaalgos/canonicalize.cc
@ -0,0 +1,109 @@
+// -*- coding: utf-8 -*-
+// Copyright (C) 2014 Laboratoire de Recherche et
+// Developpement de l Epita (LRDE).
+//
+// This file is part of Spot, a model checking library.
+//
+// Spot is free software; you can redistribute it and/or modify it
+// under the terms of the GNU General Public License as published by
+// the Free Software Foundation; either version 3 of the License, or
+// (at your option) any later version.
+//
+// Spot is distributed in the hope that it will be useful, but WITHOUT
+// ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
+// or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public
+// License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with this program.  If not, see <http://www.gnu.org/licenses/>.
+
+#include "canonicalize.hh"
+#include "twa/twagraph.hh"
+#include <set>
+#include <vector>
+
+namespace
+{
+  typedef std::pair<spot::twa_graph::graph_t::trans_data_t, unsigned>
+    trans_sig_t;
+
+  struct signature_t
+  {
+    std::vector<trans_sig_t> ingoing;
+    std::vector<trans_sig_t> outgoing;
+    unsigned classnum;
+
+    bool
+    operator<(const signature_t& o) const
+    {
+      return ingoing != o.ingoing ? ingoing < o.ingoing :
+        outgoing != o.outgoing ? outgoing < o.outgoing :
+        classnum < o.classnum;
+    }
+  };
+
+  typedef std::map<signature_t, std::vector<unsigned>> sig2states_t;
+
+  static sig2states_t
+  sig_to_states(spot::twa_graph_ptr aut, std::vector<unsigned>& state2class)
+  {
+    std::vector<signature_t> signature(aut->num_states(), signature_t());
+
+    for (auto& t : aut->transitions())
+      {
+        signature[t.dst].ingoing.emplace_back(t.data(), state2class[t.src]);
+        signature[t.src].outgoing.emplace_back(t.data(), state2class[t.dst]);
+      }
+
+    sig2states_t sig2states;
+    for (unsigned s = 0; s < aut->num_states(); ++s)
+      {
+        std::sort(signature[s].ingoing.begin(), signature[s].ingoing.end());
+        std::sort(signature[s].outgoing.begin(), signature[s].outgoing.end());
+        signature[s].classnum = state2class[s];
+        sig2states[signature[s]].push_back(s);
+      }
+
+    return sig2states;
+  }
+}
+
+namespace spot
+{
+  twa_graph_ptr
+  canonicalize(twa_graph_ptr aut)
+  {
+    std::vector<unsigned> state2class(aut->num_states(), 0);
+    state2class[aut->get_init_state_number()] = 1;
+    size_t distinct_classes = 2;
+    sig2states_t sig2states = sig_to_states(aut, state2class);
+
+    while (sig2states.size() != distinct_classes &&
+           sig2states.size() != aut->num_states())
+      {
+        distinct_classes = sig2states.size();
+
+        unsigned classnum = 0;
+        for (auto& s: sig2states)
+          {
+            for (auto& state: s.second)
+              state2class[state] = classnum;
+            ++classnum;
+          }
+
+        sig2states = sig_to_states(aut, state2class);
+      }
+
+    unsigned classnum = 0;
+    for (auto& s: sig2states)
+      for (auto& state: s.second)
+        state2class[state] = classnum++;
+
+    auto& g = aut->get_graph();
+    g.rename_states_(state2class);
+    aut->set_init_state(state2class[aut->get_init_state_number()]);
+    g.sort_transitions_();
+    g.chain_transitions_();
+    return aut;
+  }
+}