e886609269
* spot/twaalgos/split.cc: split_2step relies less on bdd, which improves its performance * tests/python/split.py: update test
103 lines
2.5 KiB
Python
103 lines
2.5 KiB
Python
# -*- mode: python; coding: utf-8 -*-
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# Copyright (C) 2018 Laboratoire de Recherche et
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# Développement 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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def incl(a,b):
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return not b.intersects(spot.dualize(spot.tgba_determinize(a)))
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def equiv(a,b):
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return incl(a,b) and incl(b,a)
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def do_split(f, in_list):
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aut = spot.translate(f)
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inputs = spot.buddy.bddtrue
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for a in in_list:
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inputs &= spot.buddy.bdd_ithvar(aut.get_dict().varnum(spot.formula(a)))
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s = spot.split_2step(aut, inputs)
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return aut,s
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aut, s = do_split('(FG !a) <-> (GF b)', ['a'])
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assert equiv(aut, spot.unsplit_2step(s))
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aut, s = do_split('GFa && GFb', ['a'])
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assert equiv(aut, spot.unsplit_2step(s))
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assert s.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: generalized-Buchi 2
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Acceptance: 2 Inf(0)&Inf(1)
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properties: trans-labels explicit-labels trans-acc complete
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properties: deterministic
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--BODY--
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State: 0
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[0] 1
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[!0] 2
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State: 1
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[!1] 0 {0}
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[1] 0 {0 1}
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State: 2
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[!1] 0
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[1] 0 {1}
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--END--"""
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aut, s = do_split('! ((G (req -> (F ack))) && (G (go -> (F grant))))', ['go',
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'req'])
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assert equiv(aut, spot.unsplit_2step(s))
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# FIXME s.to_str() is NOT the same on Debian stable and on Debian unstable
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# we should investigate this
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#assert s.to_str() == """HOA: v1
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#States: 9
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#Start: 0
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#AP: 4 "ack" "req" "go" "grant"
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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
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#[1&!2] 3
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#[!1&!2] 4
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#[1&2] 5
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#[!1&2] 6
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#State: 1
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#[t] 7
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#State: 2
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#[t] 8
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#State: 3
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#[t] 0
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#[!0] 1
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#State: 4
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#[t] 0
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#State: 5
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#[t] 0
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#[!0] 1
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#[!3] 2
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#State: 6
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#[t] 0
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#[!3] 2
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#State: 7 {0}
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#[!0] 1
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#State: 8 {0}
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#[!3] 2
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#--END--"""
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aut, s = do_split('((G (((! g_0) || (! g_1)) && ((r_0 && (X r_1)) -> (F (g_0 \
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&& g_1))))) && (G (r_0 -> F g_0))) && (G (r_1 -> F g_1))', ['r_0', 'r_1'])
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assert equiv(aut, spot.unsplit_2step(s))
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