5a2bc9f915
Fixes #164. * spot/twaalgos/stutter.hh, spot/twaalgos/stutter.cc: Implement the determinization, while keeping it optional. * NEWS: Mention the change. * tests/core/ltl2dstar.test, tests/core/stutter-tgba.test: Add test cases. * tests/core/readsave.test: Adjust.
76 lines
2.3 KiB
C++
76 lines
2.3 KiB
C++
// -*- coding: utf-8 -*-
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// Copyright (C) 2014, 2015, 2016 Laboratoire de Recherche
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// et Développement de l'Epita (LRDE).
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//
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// This file is part of Spot, a model checking library.
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//
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// Spot is free software; you can redistribute it and/or modify it
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// under the terms of the GNU General Public License as published by
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// the Free Software Foundation; either version 3 of the License, or
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// (at your option) any later version.
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//
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// Spot is distributed in the hope that it will be useful, but WITHOUT
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// ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
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// or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public
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// License for more details.
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//
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// You should have received a copy of the GNU General Public License
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// along with this program. If not, see <http://www.gnu.org/licenses/>.
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#pragma once
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#include <spot/twa/twagraph.hh>
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namespace spot
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{
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SPOT_API twa_graph_ptr
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sl(const twa_graph_ptr&);
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SPOT_API twa_graph_ptr
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sl(const const_twa_graph_ptr&, bdd);
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SPOT_API twa_graph_ptr
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sl2(const twa_graph_ptr&);
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SPOT_API twa_graph_ptr
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sl2(const const_twa_graph_ptr&, bdd);
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#ifndef SWIG
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SPOT_API twa_graph_ptr
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sl2(twa_graph_ptr&&, bdd = bddfalse);
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#endif
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SPOT_API twa_graph_ptr
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closure(const const_twa_graph_ptr&);
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#ifndef SWIG
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SPOT_API twa_graph_ptr
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closure(twa_graph_ptr&&);
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#endif
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/// \ingroup ltl_misc
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/// \brief Check if a formula has the stutter invariance property.
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SPOT_API bool
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is_stutter_invariant(formula f);
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SPOT_API bool
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is_stutter_invariant(twa_graph_ptr&& aut_f,
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twa_graph_ptr&& aut_nf, bdd aps,
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int algo = 0);
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/// \brief Check whether \a aut is stutter-invariant
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///
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/// This procedure requires the negation of \a aut to
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/// be computed. This is easily done of \a aut is deterministic
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/// or if a formula represented by \a aut is known. Otherwise
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/// \a aut will be complemented by determinization, which can
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/// be expansive. The determinization can be forbidden using
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/// the \a do_not_determinize flag.
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///
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/// If no complemented automaton could be constructed, the
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/// the result will be returned as trival::maybe().
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SPOT_API trival
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check_stutter_invariance(const twa_graph_ptr& aut,
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formula f = nullptr,
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bool do_not_determinize = false);
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}
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