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Inf(i)|Inf(j) -> Inf(k) and Fin(i)&Fin(j) -> Fin(k)

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Implement those rules in simplify_acceptance_here().

* NEWS: Mention the change.
* spot/twa/acc.cc,
spot/twa/acc.hh (acc_cond::acc_code::used_once_sets): New method.
* spot/twaalgos/cleanacc.cc, spot/twaalgos/cleanacc.hh:
Implement the above rule.
* tests/core/remfin.test: Adjust expected results.
* tests/python/simplacc.py: New file.
* tests/Makefile.am: Add it.
This commit is contained in:
Alexandre Duret-Lutz 2020-01-27 22:50:17 +01:00
parent 5dc6da0b20
commit 50c0f880dc
8 changed files with 416 additions and 23 deletions
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54
tests/python/simplacc.py Normal file
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# -*- mode: python; coding: utf-8 -*-
# Copyright (C) 2020 Laboratoire de Recherche et Développement de l'Epita
# (LRDE).
#
# 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
auts = list(spot.automata("""
HOA: v1 States: 2 Start: 0 AP: 2 "a" "b" Acceptance: 2 Inf(0) | Inf(1) --BODY--
State: 0 [1] 0 [0] 1 {0} State: 1 [0] 1 [1] 0 {1} --END--
HOA: v1 States: 2 Start: 0 AP: 2 "a" "b" Acceptance: 2 (Inf(0) | Inf(1)) &
Fin(0) --BODY-- State: 0 [1] 0 [0] 1 {0} State: 1 [0] 1 [1] 0 {1} --END--
HOA: v1 States: 2 Start: 0 AP: 2 "a" "b" Acceptance: 3 (Inf(0) | Inf(1)) &
(Fin(0) | Inf(2)) --BODY-- State: 0 [1] 0 [0] 1 {0} State: 1 [0] 1 {2} [1] 0
{1} --END--
HOA: v1 States: 2 Start: 0 AP: 2 "a" "b" Acceptance: 4 (Inf(0) |
(Inf(1)&(Inf(3)|Fin(2)))) --BODY-- State: 0 [1] 0 {3} [0] 1 {0} State: 1 [0] 1
{2} [1] 0 {1} --END--
"""))
res = []
for a in auts:
b = spot.simplify_acceptance(a)
assert b.equivalent_to(a)
res.append(str(b.get_acceptance()))
a.set_acceptance(a.num_sets(), a.get_acceptance().complement())
b = spot.simplify_acceptance(a)
assert b.equivalent_to(a)
res.append(str(b.get_acceptance()))
assert res == ['Inf(0)',
'Fin(0)',
'Inf(1) & Fin(0)',
'Fin(1) | Inf(0)',
'Inf(1) & (Fin(0) | Inf(2))',
'Fin(1) | (Fin(2) & Inf(0))',
'(Fin(1) | Inf(2)) & Inf(0)',
'Fin(0) | (Fin(2) & Inf(1))']