37f3154f1d
Fixes #276. * spot/twaalgos/sbacc.cc, spot/twaalgos/degen.cc: Detect accepting sinks, and merge them. * tests/python/dualize.py: Adjust. * tests/python/sbacc.py: More test cases.
96 lines
2 KiB
Python
96 lines
2 KiB
Python
# -*- mode: python; coding: utf-8 -*-
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# Copyright (C) 2017 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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import spot
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aut = spot.translate('GFa')
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assert aut.num_states() == 1
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assert not aut.prop_state_acc().is_true()
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aut = spot.sbacc(aut)
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assert aut.num_states() == 2
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assert aut.prop_state_acc().is_true()
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aut = spot.automaton("""HOA: v1
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States: 3
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Start: 0
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AP: 2 "a" "b"
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Acceptance: 2 Inf(0) | Inf(1)
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properties: trans-labels explicit-labels trans-acc
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--BODY--
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State: 0
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[0&1] 1
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[0&!1] 2
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State: 1
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[t] 1 {0}
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[0] 0
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State: 2
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[t] 2 {1}
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[0] 1
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--END--""")
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s = spot.sbacc(aut)
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h = s.to_str('hoa')
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assert h == """HOA: v1
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States: 2
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Start: 0
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AP: 2 "b" "a"
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Acceptance: 2 Inf(0) | Inf(1)
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properties: trans-labels explicit-labels state-acc deterministic
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--BODY--
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State: 0
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[1] 1
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State: 1 {1}
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[t] 1
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--END--"""
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aut = spot.automaton("""HOA: v1
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States: 3
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Start: 0
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AP: 2 "a" "b"
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Acceptance: 2 Inf(0) & Inf(1)
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properties: trans-labels explicit-labels trans-acc
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--BODY--
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State: 0
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[0&1] 1
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[0&!1] 2
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State: 1
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[t] 1 {0 1}
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[0] 0
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State: 2
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[t] 2 {1 0}
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[0] 1
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--END--""")
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d = spot.degeneralize(aut)
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h = d.to_str('hoa')
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assert h == """HOA: v1
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States: 2
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Start: 0
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AP: 2 "b" "a"
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acc-name: Buchi
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Acceptance: 1 Inf(0)
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properties: trans-labels explicit-labels state-acc deterministic
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--BODY--
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State: 0
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[1] 1
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State: 1 {0}
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[t] 1
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--END--"""
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