7880b25aae
* src/twaalgos/dtbasat.cc, src/twaalgos/dtbasat.hh, src/twaalgos/dtgbasat.cc, src/twaalgos/dtgbasat.hh: Add it. * src/tests/satmin2.test: Add couple of tests.
68 lines
2.5 KiB
C++
68 lines
2.5 KiB
C++
// -*- coding: utf-8 -*-
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// Copyright (C) 2013, 2014, 2015 Laboratoire de Recherche et
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// Développement de l'Epita.
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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 "twa/twagraph.hh"
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namespace spot
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{
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/// \brief Attempt to synthetize an equivalent deterministic TBA
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/// with a SAT solver.
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///
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/// \param a the input TGA. It should have only one acceptance
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/// set and be deterministic. I.e., it should be a deterministic TBA.
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///
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/// \param target_state_number the desired number of states wanted
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/// in the resulting automaton. The result may have less than \a
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/// target_state_number reachable states.
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///
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/// \param state_based set to true to force all outgoing transitions
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/// of a state to share the same acceptance condition, effectively
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/// turning the TBA into a BA.
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///
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/// If no equivalent deterministic TBA with \a target_state_number
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/// states is found, a null pointer
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SPOT_API twa_graph_ptr
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dtba_sat_synthetize(const const_twa_graph_ptr& a,
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int target_state_number,
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bool state_based = false);
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/// \brief Attempt to minimize a deterministic TBA with a SAT solver.
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///
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/// This calls dtba_sat_synthetize() in a loop, with a decreasing
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/// number of states, and returns the last successfully built TBA.
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///
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/// If no smaller TBA exist, this returns a null pointer.
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SPOT_API twa_graph_ptr
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dtba_sat_minimize(const const_twa_graph_ptr& a,
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bool state_based = false,
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int max_states = -1);
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/// \brief Attempt to minimize a deterministic TBA with a SAT solver.
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///
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/// This calls dtba_sat_synthetize() in a loop, but attempting to
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/// find the minimum number of states using a binary search.
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//
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/// If no smaller TBA exist, this returns a null pointer.
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SPOT_API twa_graph_ptr
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dtba_sat_minimize_dichotomy(const const_twa_graph_ptr& a,
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bool state_based = false,
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int max_states = -1);
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}
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