Commit d7ff0665 authored by Alexandre Duret-Lutz's avatar Alexandre Duret-Lutz
Browse files

Fix computation of support_conditions in tgba_wdba_comp_proxy.

* src/tgba/wdbacomp.cc
(tgba_wdba_comp_proxy::compute_support_conditions): Fix.
* src/tgbatest/wdba2.test: Test a formula that used to be wrongly
minimized if translated by LaCIM, because the product of a
tgbabddconcrete automaton with another automaton (done during
WDBA-minimization) use the support conditions to speed things up.
parent 03b13891
// Copyright (C) 2011 Laboratoire de Recherche et Développement de
// l'Epita.
// -*- coding: utf-8 -*-
// Copyright (C) 2011, 2012 Laboratoire de Recherche et Développement
// de l'Epita.
//
// This file is part of Spot, a model checking library.
//
......@@ -248,18 +249,12 @@ namespace spot
return !the_acceptance_cond_;
}
protected:
virtual bdd
compute_support_conditions(const state* ostate) const
protected:
virtual bdd
compute_support_conditions(const state*) const
{
const state_wdba_comp_proxy* s =
down_cast<const state_wdba_comp_proxy*>(ostate);
assert(s);
const state* rs = s->real_state();
if (rs)
return a_->support_conditions(rs);
else
return bddtrue;
// The automaton is complete, so we always support all variables.
return bddtrue;
}
virtual bdd compute_support_variables(const state* ostate) const
......
#!/bin/sh
# -*- coding: utf-8 -*-
# Copyright (C) 2012 Laboratoire de Recherche et Développement
# de l'Epita (LRDE).
#
......@@ -36,3 +37,12 @@ run 0 ../ltl2tgba -Rm -kt 'Fa | XGd' > out2
cmp out expected
cmp out2 expected
# This non-obligation formula used to be minimized by mistake when
# translated with lacim.
x=`../ltl2tgba -l -Rm 'F(Fa R (Gb & !a))' |
grep -v -- '->' |
sed -n 's/.*label="\(..*\)".*/\1/p' |
tr -d '0-9\n'`
test -n "$x"
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