64020279cb
* spot/twaalgos/parity.cc (reduce_parity): Use the size of the edge vector to initialize piprime1 and piprime2, not the number of edges. * tests/python/parity.py: Add test case, based on a report by Yann Thierry-Mieg.
171 lines
4.3 KiB
Python
171 lines
4.3 KiB
Python
#!/usr/bin/python3
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# -*- mode: python; coding: utf-8 -*-
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# Copyright (C) 2018, 2019, 2022 Laboratoire de Recherche et Développement de
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# 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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max_even_5 = spot.acc_code.parity(True, False, 5)
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assert max_even_5 == spot.acc_code.parity_max_even(5)
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assert max_even_5 == spot.acc_code.parity_max(False, 5)
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min_even_5 = spot.acc_code.parity(False, False, 5)
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assert min_even_5 == spot.acc_code.parity_min_even(5)
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assert min_even_5 == spot.acc_code.parity_min(False, 5)
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max_odd_5 = spot.acc_code.parity(True, True, 5)
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assert max_odd_5 == spot.acc_code.parity_max_odd(5)
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assert max_odd_5 == spot.acc_code.parity_max(True, 5)
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min_odd_5 = spot.acc_code.parity(False, True, 5)
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assert min_odd_5 == spot.acc_code.parity_min_odd(5)
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assert min_odd_5 == spot.acc_code.parity_min(True, 5)
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for f in ('FGa', 'GFa & GFb & FGc', 'XXX(a U b)'):
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a1 = spot.translate(f, 'parity')
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assert a1.acc().is_parity()
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a2 = spot.translate(f).postprocess('parity')
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assert a2.acc().is_parity()
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a3 = spot.translate(f, 'det').postprocess('parity', 'colored')
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assert a3.acc().is_parity()
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assert spot.is_colored(a3)
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a = spot.translate('GFa & GFb')
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try:
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spot.change_parity_here(a, spot.parity_kind_same, spot.parity_style_even)
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except RuntimeError as e:
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assert 'input should have parity acceptance' in str(e)
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else:
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exit(2)
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a = spot.automaton("""
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HOA: v1
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States: 1
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Start: 0
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AP: 1 "a"
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Acceptance: 2 Fin(0) & Inf(1)
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--BODY--
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State: 0
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[t] 0 {0}
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--END--
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""")
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spot.cleanup_parity_here(a)
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assert a.to_str() == """HOA: v1
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States: 1
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Start: 0
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AP: 1 "a"
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acc-name: none
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Acceptance: 0 f
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properties: trans-labels explicit-labels state-acc complete
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properties: deterministic
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--BODY--
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State: 0
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[t] 0
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--END--"""
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a = spot.automaton("""
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HOA: v1
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States: 1
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Start: 0
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AP: 1 "a"
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Acceptance: 2 Fin(0) | Inf(1)
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--BODY--
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State: 0
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[t] 0 {1}
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--END--
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""")
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spot.cleanup_parity_here(a)
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assert a.to_str() == """HOA: v1
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States: 1
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Start: 0
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AP: 1 "a"
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acc-name: all
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Acceptance: 0 t
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properties: trans-labels explicit-labels state-acc complete
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properties: deterministic
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--BODY--
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State: 0
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[t] 0
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--END--"""
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a = spot.automaton("""HOA: v1
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States: 3
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Start: 0
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AP: 1 "a"
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acc-name: all
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Acceptance: 0 t
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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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[0] 1
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State: 1
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[0] 2
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State: 2
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--END--""")
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try:
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spot.get_state_players(a)
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except RuntimeError as e:
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assert "not a game" in str(e)
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else:
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report_missing_exception()
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try:
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spot.set_state_player(a, 1, True)
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except RuntimeError as e:
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assert "Can only" in str(e)
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else:
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report_missing__exception()
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spot.set_state_players(a, (False, True, False))
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assert spot.get_state_player(a, 0) == False
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assert spot.get_state_player(a, 1) == True
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assert spot.get_state_player(a, 2) == False
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try:
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spot.set_state_players(a, [True, False, False, False])
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except RuntimeError as e:
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assert "many owners as states" in str(e)
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else:
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report_missing_exception()
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try:
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spot.get_state_player(a, 4)
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except RuntimeError as e:
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assert "invalid state number" in str(e)
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else:
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report_missing_exception()
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try:
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spot.set_state_player(a, 4, True)
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except RuntimeError as e:
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assert "invalid state number" in str(e)
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else:
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report_missing_exception()
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a = spot.automaton("""HOA: v1 name: "F(!p0 | X!p1)" States: 3
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Start: 1 AP: 2 "p0" "p1" acc-name: Buchi Acceptance: 1 Inf(0)
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properties: trans-labels explicit-labels trans-acc complete
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properties: deterministic terminal --BODY-- State: 0 [t] 0 {0} State:
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1 [!0] 0 [0] 2 State: 2 [!0 | !1] 0 [0&1] 2 --END--""")
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# Erase the first edge of state 1
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oi = a.out_iteraser(1)
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oi.erase()
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# postprocess used to call reduce_parity that did not
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# work correctly on automata with deleted edges.
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sm = a.postprocess("gen", "small")
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assert sm.num_states() == 3
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