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ltlcross: adjust to work with generic acceptance

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* src/bin/ltlcross.cc: Remove Fin-acceptance before
doing checks.  More --verbose output.
* src/tgba/acc.cc, src/tgba/acc.hh: Add an eval_sets() function
to find the set of acceptance sets needed to satisfy the condition
in an accepting SCC.
* src/tgbaalgos/gtec/ce.cc: Use eval_sets() when computing
a counter example.
* src/tgbaalgos/gtec/gtec.cc: Raise an exception when called
on an acceptance that contains Fin.
* src/tgbatest/ltl2dstar3.test, src/tgbatest/ltlcrossce2.test:
New files.
* src/tgbatest/Makefile.am: Add them.
* src/tgba/tgba.cc (is_empty): Call remove_fin if needed.
* src/tgbaalgos/product.cc, src/tgbaalgos/dtgbacomp.cc: Adjust
to work with generic acceptance.
This commit is contained in:
Alexandre Duret-Lutz 2015-02-25 08:57:49 +01:00
parent 9ccbc34964
commit 717c857794
11 changed files with 293 additions and 17 deletions
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19
src/tgbaalgos/gtec/gtec.cc
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@ -1,5 +1,5 @@
// -*- coding: utf-8 -*-
// Copyright (C) 2008, 2011, 2014 Laboratoire de Recherche et
// Copyright (C) 2008, 2011, 2014, 2015 Laboratoire de Recherche et
// Développement de l'Epita (LRDE).
// Copyright (C) 2003, 2004, 2005, 2006 Laboratoire d'Informatique de
// Paris 6 (LIP6), département Systèmes Répartis Coopératifs (SRC),
@ -131,6 +131,15 @@ namespace spot
emptiness_check_result_ptr
couvreur99_check::check()
{
{
auto acc = ecs_->aut->acc();
if (acc.get_acceptance().is_false())
return nullptr;
if (acc.uses_fin_acceptance())
throw std::runtime_error
("Fin acceptance is not supported by couvreur99()");
}
// We use five main data in this algorithm:
// * couvreur99_check::root, a stack of strongly connected components (SCC),
// * couvreur99_check::h, a hash of all visited nodes, with their order,
@ -384,6 +393,14 @@ namespace spot
emptiness_check_result_ptr
couvreur99_check_shy::check()
{
{
auto acc = ecs_->aut->acc();
if (acc.get_acceptance().is_false())
return nullptr;
if (acc.uses_fin_acceptance())
throw std::runtime_error
("Fin acceptance is not supported by couvreur99()");
}
// Position in the loop seeking known successors.
pos = todo.back().q.begin();