spot/tests/python/decompose_scc.py
Alexandre Duret-Lutz 09e47d648a decompose: merge decompose_strength() and decompose_scc()
These two functions were doing almost identical work, the only
difference was the way to select the SCC to keep.  Now we have a more
uniform way to do that.  Closes #172.

* bin/autfilt.cc: Offer a unique --decompose-scc option, but keep
--decompose-strength as an alias for backward compatibility.
* spot/twaalgos/strength.cc, spot/twaalgos/strength.hh: Rename
decompose_strength as decompose_scc, and handle a way to list
all SCC numers in the string specifier.  This gets rid
of the nearly identical
* tests/core/scc.test, tests/core/strength.test,
tests/python/decompose.ipynb, tests/python/decompose_scc.py: Adjust
test cases.
* NEWS: Adjust.
2017-06-30 23:09:31 +02:00

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2.1 KiB
Python

# -*- mode: python; coding: utf-8 -*-
# Copyright (C) 2017 Laboratoire de Recherche et
# Développement de l'Epita
#
# This file is part of Spot, a model checking library.
#
# Spot is free software; you can redistribute it and/or modify it
# under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 3 of the License, or
# (at your option) any later version.
#
# Spot is distributed in the hope that it will be useful, but WITHOUT
# ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
# or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public
# License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program. If not, see <http://www.gnu.org/licenses/>.
import spot
aut = spot.translate('(Ga -> Gb) W c')
si = spot.scc_info(aut)
assert (spot.decompose_scc(si, 2).to_str('hoa', '1.1') == """HOA: v1.1
States: 3
Start: 0
AP: 3 "b" "a" "c"
acc-name: Buchi
Acceptance: 1 Inf(0)
properties: trans-labels explicit-labels state-acc !complete
properties: deterministic terminal
--BODY--
State: 0
[!1&!2] 0
[1&!2] 1
State: 1
[!1&!2] 0
[1&!2] 1
[1&2] 2
State: 2
[1] 2
--END--""")
try:
spot.decompose_scc(si, 4)
except RuntimeError:
pass
else:
raise AssertionError
assert (spot.decompose_scc(si, 0, True).to_str('hoa', '1.1') == """HOA: v1.1
States: 4
Start: 0
AP: 3 "b" "a" "c"
acc-name: Buchi
Acceptance: 1 Inf(0)
properties: trans-labels explicit-labels state-acc complete
properties: deterministic terminal
--BODY--
State: 0
[!1&!2] 0
[2] 1
[1&!2] 2
State: 1 {0}
[t] 1
State: 2
[!1&!2] 0
[!1&2] 1
[1&!2] 2
[1&2] 3
State: 3
[!1] 1
[1] 3
--END--""")
assert (spot.decompose_scc(si, 2, True).to_str('hoa', '1.1') == """HOA: v1.1
States: 2
Start: 0
AP: 3 "b" "a" "c"
acc-name: Buchi
Acceptance: 1 Inf(0)
properties: trans-labels explicit-labels trans-acc !complete
properties: deterministic !weak
--BODY--
State: 0
[!1&!2] 0 {0}
[1&!2] 1
State: 1
[!1&!2] 0 {0}
[1&!2] 1
--END--""")
try:
spot.decompose_scc(si, 3, True)
except RuntimeError:
pass
else:
raise AssertionError