ltl2tgta: new tool
* src/bin/common_post.cc, src/bin/common_post.hh: New files, extracted from ... * src/bin/ltl2tgba.cc: ... here. * src/bin/ltl2tgta.cc, src/bin/man/ltl2tgta.x: New files. * src/bin/Makefile.am, src/bin/man/Makefile.am: Adjust. * NEWS: Mention ltl2tgta.
This commit is contained in:
Alexandre Duret-Lutz
parent
b0678a21a2
commit
1f0c765547
8 changed files with 469 additions and 46 deletions
330
src/bin/ltl2tgta.cc
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330
src/bin/ltl2tgta.cc
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// -*- coding: utf-8 -*-
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// Copyright (C) 2012 Laboratoire de Recherche et Développement de
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// 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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#include "common_sys.hh"
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#include <vector>
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#include <string>
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#include <iostream>
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#include <fstream>
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#include <argp.h>
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#include "progname.h"
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#include "error.h"
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#include "common_r.hh"
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#include "common_cout.hh"
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#include "common_finput.hh"
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#include "common_post.hh"
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#include "misc/_config.h"
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#include "ltlparse/public.hh"
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#include "ltlvisit/simplify.hh"
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#include "tgbaalgos/dotty.hh"
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#include "tgbaalgos/ltl2tgba_fm.hh"
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#include "tgbaalgos/postproc.hh"
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#include "tgba/bddprint.hh"
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#include "taalgos/tgba2ta.hh"
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#include "taalgos/dotty.hh"
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#include "taalgos/minimize.hh"
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const char* argp_program_version = "\
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ltl2tgta (" SPOT_PACKAGE_STRING ")\n\
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\n\
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Copyright (C) 2012 Laboratoire de Recherche et Développement de l'Epita.\n\
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This is free software; see the source for copying conditions. There is NO\n\
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warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE,\n\
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to the extent permitted by law.";
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const char* argp_program_bug_address = "<" SPOT_PACKAGE_BUGREPORT ">";
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const char argp_program_doc[] ="\
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Translate linear-time formulas (LTL/PSL) into Testing Automata.\n\n\
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By default it outputs a transition-based generalized Testing Automaton \
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the smallest Transition-based Generalized Büchi Automata, \
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in GraphViz's format. The input formula is assumed to be \
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stuttering-insensitive.";
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#define OPT_TGTA 1
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#define OPT_TA 2
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#define OPT_GTA 3
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#define OPT_SPLV 4
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#define OPT_SPNO 5
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#define OPT_INIT 6
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static const argp_option options[] =
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{
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/**************************************************/
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{ 0, 0, 0, 0, "Automaton type:", 1 },
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{ "tgta", OPT_TGTA, 0, 0,
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"Transition-based Generalized Testing Automaton (default)", 0 },
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{ "ta", OPT_TA, 0, 0, "Testing Automaton", 0 },
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{ "gta", OPT_GTA, 0, 0, "Generalized Testing Automaton", 0 },
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/**************************************************/
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{ 0, 0, 0, 0, "Options for TA and GTA creation:", 3 },
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{ "single-pass-lv", OPT_SPLV, 0, 0,
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"add an artificial livelock state to obtain a single-pass (G)TA", 0 },
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{ "single-pass", OPT_SPNO, 0, 0,
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"create a single-pass (G)TA without artificial livelock state", 0 },
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{ "multiple-init", OPT_INIT, 0, 0,
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"do not create the fake initial state", 0 },
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/**************************************************/
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{ 0, 0, 0, 0, "Output options:", 4 },
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{ "utf8", '8', 0, 0, "enable UTF-8 characters in output", 0 },
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/**************************************************/
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{ 0, 0, 0, 0, "Miscellaneous options:", -1 },
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{ 0, 0, 0, 0, 0, 0 }
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};
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const struct argp_child children[] =
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{
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{ &finput_argp, 0, 0, 1 },
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{ &post_argp, 0, 0, 20 },
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{ 0, 0, 0, 0 }
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};
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enum ta_types { TGTA, GTA, TA };
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ta_types ta_type = TGTA;
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bool utf8 = false;
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const char* stats = "";
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bool opt_with_artificial_initial_state = true;
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bool opt_single_pass_emptiness_check = false;
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bool opt_with_artificial_livelock = false;
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static int
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parse_opt(int key, char* arg, struct argp_state*)
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{
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// This switch is alphabetically-ordered.
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switch (key)
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{
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case '8':
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spot::enable_utf8();
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break;
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case 'B':
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type = spot::postprocessor::BA;
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break;
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case 'f':
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jobs.push_back(job(arg, false));
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break;
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case 'F':
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jobs.push_back(job(arg, true));
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break;
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case OPT_TGTA:
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ta_type = TGTA;
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type = spot::postprocessor::TGBA;
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break;
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case OPT_GTA:
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ta_type = GTA;
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type = spot::postprocessor::TGBA;
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break;
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case OPT_TA:
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ta_type = TA;
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type = spot::postprocessor::BA;
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break;
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case OPT_INIT:
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opt_with_artificial_initial_state = false;
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break;
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case OPT_SPLV:
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opt_with_artificial_livelock = true;
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break;
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case OPT_SPNO:
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opt_single_pass_emptiness_check = true;
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break;
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case ARGP_KEY_ARG:
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// FIXME: use stat() to distinguish filename from string?
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jobs.push_back(job(arg, false));
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break;
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default:
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return ARGP_ERR_UNKNOWN;
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}
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return 0;
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}
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namespace
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{
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class trans_processor
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{
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public:
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spot::ltl::ltl_simplifier& simpl;
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spot::postprocessor& post;
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trans_processor(spot::ltl::ltl_simplifier& simpl,
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spot::postprocessor& post)
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: simpl(simpl), post(post)
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{
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}
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int
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process_formula(const std::string& input,
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const char* filename = 0, int linenum = 0)
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{
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spot::ltl::parse_error_list pel;
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const spot::ltl::formula* f = parse_formula(input, pel);
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if (!f || pel.size() > 0)
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{
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if (filename)
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error_at_line(0, 0, filename, linenum, "parse error:");
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spot::ltl::format_parse_errors(std::cerr, input, pel);
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if (f)
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f->destroy();
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return 1;
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}
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const spot::ltl::formula* res = simpl.simplify(f);
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f->destroy();
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f = res;
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// This helps ltl_to_tgba_fm() to order BDD variables in a more
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// natural way (improving the degeneralization).
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simpl.clear_as_bdd_cache();
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bool exprop = level == spot::postprocessor::High;
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const spot::tgba* aut = ltl_to_tgba_fm(f, simpl.get_dict(), exprop);
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aut = post.run(aut, f);
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if (utf8)
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{
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spot::tgba* a = const_cast<spot::tgba*>(aut);
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if (spot::tgba_explicit_formula* tef =
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dynamic_cast<spot::tgba_explicit_formula*>(a))
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tef->enable_utf8();
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else if (spot::sba_explicit_formula* sef =
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dynamic_cast<spot::sba_explicit_formula*>(a))
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sef->enable_utf8();
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}
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bdd ap_set = atomic_prop_collect_as_bdd(f, aut);
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if (ta_type != TGTA)
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{
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spot::ta* testing_automaton = 0;
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testing_automaton = tgba_to_ta(aut, ap_set,
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type == spot::postprocessor::BA,
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opt_with_artificial_initial_state,
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opt_single_pass_emptiness_check,
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opt_with_artificial_livelock);
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if (level != spot::postprocessor::Low)
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{
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spot::ta* testing_automaton_nm = testing_automaton;
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testing_automaton = spot::minimize_ta(testing_automaton);
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delete testing_automaton_nm;
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}
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spot::dotty_reachable(std::cout, testing_automaton);
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delete testing_automaton;
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}
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else
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{
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spot::tgta_explicit* tgta = tgba_to_tgta(aut, ap_set);
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if (level != spot::postprocessor::Low)
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{
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spot::tgta_explicit* a = spot::minimize_tgta(tgta);
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delete tgta;
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tgta = a;
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}
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spot::dotty_reachable(std::cout,
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dynamic_cast<spot::tgta_explicit*>(tgta)
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->get_ta());
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delete tgta;
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}
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delete aut;
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flush_cout();
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return 0;
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}
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int
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process_stream(std::istream& is, const char* filename)
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{
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int error = 0;
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int linenum = 0;
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std::string line;
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while (std::getline(is, line))
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error |= process_formula(line, filename, ++linenum);
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return error;
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}
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int
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process_file(const char* filename)
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{
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// Special case for stdin.
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if (filename[0] == '-' && filename[1] == 0)
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return process_stream(std::cin, filename);
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errno = 0;
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std::ifstream input(filename);
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if (!input)
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error(2, errno, "cannot open '%s'", filename);
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return process_stream(input, filename);
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}
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};
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}
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static int
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run_jobs()
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{
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spot::ltl::ltl_simplifier simpl(simplifier_options());
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spot::postprocessor postproc;
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postproc.set_pref(pref);
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postproc.set_type(type);
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postproc.set_level(level);
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trans_processor processor(simpl, postproc);
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int error = 0;
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jobs_t::const_iterator i;
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for (i = jobs.begin(); i != jobs.end(); ++i)
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{
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if (!i->file_p)
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error |= processor.process_formula(i->str);
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else
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error |= processor.process_file(i->str);
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}
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if (error)
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return 2;
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return 0;
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}
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int
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main(int argc, char** argv)
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{
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set_program_name(argv[0]);
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// Simplify the program name, because argp() uses it to report errors
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// and display help text.
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argv[0] = const_cast<char*>(program_name);
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const argp ap = { options, parse_opt, "[FORMULA...]",
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argp_program_doc, children, 0, 0 };
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if (int err = argp_parse(&ap, argc, argv, 0, 0, 0))
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exit(err);
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if (jobs.empty())
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error(2, 0, "No formula to translate? Run '%s --help' for usage.",
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program_name);
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return run_jobs();
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}
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