a4d1e18bf3
* src/tgba/tgbasafracomplement.cc (tgba_safra_complement::tgba_safra_complement) (tgba_safra_complement::succ_iter): Correct the declaration and use of multiple acceptance conditions. (state_complement::to_string): Output the L set, not U. The previous code caused different states to share the same names, causing issues with the text-based output (state with identical names get merged). * src/tgba/tgbasafracomplement.hh (tgba_safra_complement::acceptance_cond_vec_): Adjust type to store BDDs. * src/tgbatest/complementation.cc: Implement a new "-b" option to output automata in Spot's syntax. * src/tgbatest/complementation.test: Add a test-case supplied by Martin Dieguez Lodeiro. * THANKS: Add Martin.
100 lines
3.2 KiB
C++
100 lines
3.2 KiB
C++
// Copyright (C) 2009, 2010, 2011 Laboratoire de Recherche et Développement
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// 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 2 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 Spot; see the file COPYING. If not, write to the Free
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// Software Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
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// 02111-1307, USA.
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#ifndef SPOT_TGBA_TGBASAFRACOMPLEMENT_HH
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# define SPOT_TGBA_TGBASAFRACOMPLEMENT_HH
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# include <vector>
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# include "tgba/tgba.hh"
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#ifndef TRANSFORM_TO_TBA
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# define TRANSFORM_TO_TBA 0
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#endif
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#define TRANSFORM_TO_TGBA (!TRANSFORM_TO_TBA)
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namespace spot
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{
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/// \brief Build a complemented automaton.
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/// \ingroup tgba_on_the_fly_algorithms
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///
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/// It creates an automaton that recognizes the
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/// negated language of \a aut.
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///
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/// 1. First Safra construction algorithm produces a
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/// deterministic Rabin automaton.
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/// 2. Interpreting this deterministic Rabin automaton as a
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/// deterministic Streett will produce a complemented automaton.
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/// 3. Then we use a transformation from deterministic Streett
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/// automaton to nondeterministic Büchi automaton.
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///
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/// Safra construction is done in \a tgba_complement, the transformation
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/// is done on-the-fly when successors are called.
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///
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/// \sa safra_determinisation, tgba_safra_complement::succ_iter.
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class tgba_safra_complement : public tgba
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{
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public:
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tgba_safra_complement(const tgba* a);
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virtual ~tgba_safra_complement();
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// tgba interface.
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virtual state* get_init_state() const;
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virtual tgba_succ_iterator*
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succ_iter(const state* local_state,
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const state* global_state = 0,
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const tgba* global_automaton = 0) const;
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virtual bdd_dict* get_dict() const;
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virtual std::string format_state(const state* state) const;
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virtual bdd all_acceptance_conditions() const;
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virtual bdd neg_acceptance_conditions() const;
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void* get_safra() const
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{
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return safra_;
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}
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protected:
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virtual bdd compute_support_conditions(const state* state) const;
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virtual bdd compute_support_variables(const state* state) const;
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private:
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const tgba* automaton_;
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void* safra_;
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#if TRANSFORM_TO_TBA
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bdd the_acceptance_cond_;
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#endif
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#if TRANSFORM_TO_TGBA
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bdd all_acceptance_cond_;
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bdd neg_acceptance_cond_;
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// Map to i the i-th acceptance condition of the final automaton.
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std::vector<bdd> acceptance_cond_vec_;
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#endif
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};
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/// \brief Produce a dot output of the Safra automaton associated
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/// to \a a.
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///
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/// @param a The \c tgba_safra_complement with an intermediate Safra
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/// automaton to display
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///
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void display_safra(const tgba_safra_complement* a);
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}
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#endif // SPOT_TGBA_TGBASAFRACOMPLEMENT_HH
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