46d8aaaae1
* spot/twa/twagraph.cc, spot/twa/twagraph.hh: Here. Also make sure "original-states" survives defrag_states(). * NEWS: Mention it. * tests/python/origstate.py: New file. * tests/Makefile.am: Add it.
108 lines
2.2 KiB
Python
108 lines
2.2 KiB
Python
# -*- mode: python; coding: utf-8 -*-
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# Copyright (C) 2015, 2017 Laboratoire de Recherche et Développement
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# de l'Epita
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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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from sys import exit
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aut = spot.automaton("""
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HOA: v1
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States: 2
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Start: 0
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AP: 2 "a" "b"
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acc-name: Buchi
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Acceptance: 1 Inf(0)
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--BODY--
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State: 0
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[0] 0 {0}
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[!0] 0
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[1] 1
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State: 1
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[1] 1 {0}
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--END--
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""")
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aut2 = spot.degeneralize(aut)
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assert aut2.to_str() == """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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acc-name: Buchi
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Acceptance: 1 Inf(0)
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properties: trans-labels explicit-labels state-acc
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--BODY--
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State: 0 {0}
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[0] 0
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[!0] 1
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[1] 2
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State: 1
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[0] 0
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[!0] 1
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[1] 2
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State: 2 {0}
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[1] 2
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--END--"""
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aut2.copy_state_names_from(aut)
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assert aut2.to_str() == """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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acc-name: Buchi
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Acceptance: 1 Inf(0)
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properties: trans-labels explicit-labels state-acc
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--BODY--
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State: 0 "0" {0}
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[0] 0
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[!0] 1
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[1] 2
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State: 1 "0"
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[0] 0
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[!0] 1
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[1] 2
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State: 2 "1" {0}
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[1] 2
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--END--"""
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aut2.set_init_state(2)
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aut2.purge_unreachable_states()
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ref = """HOA: v1
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States: 1
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Start: 0
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AP: 2 "a" "b"
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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 colored
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properties: deterministic
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--BODY--
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State: 0 "1" {0}
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[1] 0
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--END--"""
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assert aut2.to_str() == ref
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# This makes sure that the original-states vector has also been renamed.
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aut2.copy_state_names_from(aut)
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assert aut2.to_str() == ref
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aut2 = spot.degeneralize(aut)
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aut2.release_named_properties()
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try:
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aut2.copy_state_names_from(aut)
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except RuntimeError as e:
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assert "state does not exist in source automaton" in str(e)
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else:
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exit(1)
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