contain.hh

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00001 // Copyright (C) 2006 Laboratoire d'Informatique de Paris 6 (LIP6),
00002 // département Systèmes Répartis Coopératifs (SRC), Université Pierre
00003 // et Marie Curie.
00004 //
00005 // This file is part of Spot, a model checking library.
00006 //
00007 // Spot is free software; you can redistribute it and/or modify it
00008 // under the terms of the GNU General Public License as published by
00009 // the Free Software Foundation; either version 2 of the License, or
00010 // (at your option) any later version.
00011 //
00012 // Spot is distributed in the hope that it will be useful, but WITHOUT
00013 // ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
00014 // or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public
00015 // License for more details.
00016 //
00017 // You should have received a copy of the GNU General Public License
00018 // along with Spot; see the file COPYING.  If not, write to the Free
00019 // Software Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
00020 // 02111-1307, USA.
00021 
00022 #ifndef SPOT_LTLVISIT_CONTAIN_HH
00023 # define SPOT_LTLVISIT_CONTAIN_HH
00024 
00025 #include "ltlast/formula.hh"
00026 #include "tgbaalgos/ltl2tgba_fm.hh"
00027 #include "misc/hash.hh"
00028 #include <map>
00029 
00030 namespace spot
00031 {
00032   namespace ltl
00033   {
00034     // Check containment of language represented by LTL formulae.
00035     class language_containment_checker
00036     {
00037       struct record_
00038       {
00039         const tgba* translation;
00040         typedef std::map<const record_*, bool> incomp_map;
00041         incomp_map incompatible;
00042       };
00043       typedef Sgi::hash_map<const formula*,
00044                             record_, formula_ptr_hash> trans_map;
00045     public:
00048       language_containment_checker(bdd_dict* dict, bool exprop,
00049                                    bool symb_merge,
00050                                    bool branching_postponement,
00051                                    bool fair_loop_approx);
00052 
00053       ~language_containment_checker();
00054 
00056       bool contained(const formula* l, const formula* g);
00058       bool neg_contained(const formula* l, const formula* g);
00060       bool contained_neg(const formula* l, const formula* g);
00061 
00063       bool equal(const formula* l, const formula* g);
00064 
00065     protected:
00066       bool incompatible_(record_* l, record_* g);
00067 
00068       record_* register_formula_(const formula* f);
00069 
00070       /* Translation options */
00071       bdd_dict* dict_;
00072       bool exprop_;
00073       bool symb_merge_;
00074       bool branching_postponement_;
00075       bool fair_loop_approx_;
00076       /* Translation Maps */
00077       trans_map translated_;
00078     };
00079 
00104     formula* reduce_tau03(const formula* f, bool stronger = true);
00105   }
00106 }
00107 
00108 #endif // SPOT_LTLVISIT_CONTAIN_HH

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