Fixes #471, reported by Cambridge Yang. * spot/twa/twa.cc (intersecting_run): Disable the product optimization for weak automata. * tests/python/471.py: New file. * tests/Makefile.am: Add it. * NEWS: Mention the bug.
28 lines
1,009 B
Python
28 lines
1,009 B
Python
# -*- mode: python; coding: utf-8 -*-
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# Copyright (C) 2021 Laboratoire de Recherche et Développement de l'Epita
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# (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 3 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 this program. If not, see <http://www.gnu.org/licenses/>.
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# Test for Issue #471.
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import spot
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a = spot.translate('Fa')
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a = spot.to_generalized_rabin(a, False)
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r1 = a.intersecting_run(a)
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r2 = a.accepting_run()
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assert str(r1) == str(r2)
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assert a.prop_weak().is_true()
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