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simplify: fix 3 incorrect simplification rules

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* src/ltlvisit/simplify.cc: Remove two incorrect rules, and
partially disable another one.
* doc/tl/tl.tex: Reflect the change.
* src/ltltest/reduccmp.test: Likewise.
* src/ltltest/equals.cc: Add safety checks to catch such errors in the
future.
* NEWS: Mention the bug.
This commit is contained in:
Alexandre Duret-Lutz 2014-05-13 16:59:51 +02:00
parent 34fd27a381
commit 48471b5114
5 changed files with 61 additions and 123 deletions
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39
src/ltltest/equals.cc
View file

@ -1,6 +1,6 @@
// -*- coding: utf-8 -*-
// Copyright (C) 2008, 2009, 2010, 2011, 2012 Laboratoire de Recherche
// et Développement de l'Epita (LRDE).
// Copyright (C) 2008, 2009, 2010, 2011, 2012, 2014 Laboratoire de
// Recherche et Développement de l'Epita (LRDE).
// Copyright (C) 2003, 2004, 2006 Laboratoire d'Informatique de
// Paris 6 (LIP6), département Systèmes Répartis Coopératifs (SRC),
// Université Pierre et Marie Curie.
@ -68,7 +68,7 @@ main(int argc, char** argv)
if (spot::ltl::format_parse_errors(std::cerr, argv[2], p2))
return 2;
int exit_code;
int exit_code = 0;
{
#if defined LUNABBREV || defined TUNABBREV || defined NENOFORM || defined WM
@ -112,6 +112,14 @@ main(int argc, char** argv)
const spot::ltl::formula* tmp;
tmp = f1;
f1 = simp.simplify(f1);
if (!simp.are_equivalent(f1, tmp))
{
std::cerr << "Source and simplified formulae are not equivalent!\n";
std::cerr << "Simplified: " << spot::ltl::to_string(f1) << "\n";
exit_code = 1;
}
tmp->destroy();
}
spot::ltl::dump(std::cout, f1);
@ -124,6 +132,14 @@ main(int argc, char** argv)
const spot::ltl::formula* tmp;
tmp = f1;
f1 = simp.simplify(f1);
if (!simp.are_equivalent(f1, tmp))
{
std::cerr << "Source and simplified formulae are not equivalent!\n";
std::cerr << "Simplified: " << spot::ltl::to_string(f1) << "\n";
exit_code = 1;
}
tmp->destroy();
}
spot::ltl::dump(std::cout, f1);
@ -136,13 +152,21 @@ main(int argc, char** argv)
const spot::ltl::formula* tmp;
tmp = f1;
f1 = simp.simplify(f1);
if (!simp.are_equivalent(f1, tmp))
{
std::cerr << "Source and simplified formulae are not equivalent!\n";
std::cerr << "Simplified: " << spot::ltl::to_string(f1) << "\n";
exit_code = 1;
}
tmp->destroy();
}
spot::ltl::dump(std::cout, f1);
std::cout << std::endl;
#endif
exit_code = f1 != f2;
exit_code |= f1 != f2;
#if (!defined(REDUC) && !defined(REDUC_TAU) && !defined(REDUC_TAUSTR))
spot::ltl::ltl_simplifier simp;
@ -150,8 +174,11 @@ main(int argc, char** argv)
if (!simp.are_equivalent(f1, f2))
{
std::cerr << "Source and destination formulae are not equivalent!"
<< std::endl;
#if (!defined(REDUC) && !defined(REDUC_TAU) && !defined(REDUC_TAUSTR))
std::cerr << "Source and destination formulae are not equivalent!\n";
#else
std::cerr << "Simpl. and destination formulae are not equivalent!\n";
#endif
exit_code = 1;
}