6e3fd873ba
* src/ltltest/syntimpl.cc, src/ltltest/syntimpl.test: ... these. * src/ltltest/Makefile.am: Adjust. * src/ltlvisit/forminf.cc: Rename as... * src/ltlvisit/syntimpl.cc: ... this. * src/ltlvisit/syntimpl.hh: New file with definitions extracted from ... * src/ltlvisit/reducform.hh: ... this one. * src/ltlvisit/Makefile.am, src/ltlvisit/reducform.cc: Adjust.
76 lines
2.3 KiB
C++
76 lines
2.3 KiB
C++
// Copyright (C) 2004 Laboratoire d'Informatique de Paris 6 (LIP6),
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// département Systèmes Répartis Coopératifs (SRC), Université Pierre
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// et Marie Curie.
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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_LTLVISIT_REDUCFORM_HH
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# define SPOT_LTLVISIT_REDUCFORM_HH
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#include "ltlast/formula.hh"
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#include "ltlast/visitor.hh"
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namespace spot
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{
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namespace ltl
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{
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/// Options for spot::ltl::reduce.
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enum reduce_options
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{
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/// No reduction.
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Reduce_None = 0,
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/// Basic reductions.
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Reduce_Basics = 1,
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/// Somenzi & Bloem syntactic implication.
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Reduce_Syntactic_Implications = 2,
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/// Etessami & Holzmann eventuality and universality reductions.
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Reduce_Eventuality_And_Universality = 4,
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/// All reductions.
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Reduce_All = -1U
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};
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/// \brief Reduce a formula \a f.
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///
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/// \param f the formula to reduce
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/// \param opt a conjonction of spot::ltl::reduce_options specifying
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// which optimizations to apply.
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/// \return the reduced formula
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formula* reduce(const formula* f, int opt = Reduce_All);
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/// Basic rewritings.
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formula* basic_reduce(const formula* f);
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/// \brief Check whether a formula is eventual.
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///
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/// FIXME: Describe what eventual formulae are. Cite paper.
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bool is_eventual(const formula* f);
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/// \brief Check whether a formula is universal.
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///
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/// FIXME: Describe what universal formulae are. Cite paper.
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bool is_universal(const formula* f);
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/// Whether a formula starts with GF.
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bool is_GF(const formula* f);
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/// Whether a formula starts with FG.
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bool is_FG(const formula* f);
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}
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}
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#endif // SPOT_LTLVISIT_REDUCFORM_HH
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