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fix merging of initial states in state-based automata

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Fixes #522 reported by Raven Beutner.

* spot/parseaut/parseaut.yy: Make sure all edges leaving
the initial state have the same color.
* THANKS: Add Raven.
* NEWS: Mention the bug.
* tests/core/522.test: New file.
* tests/Makefile.am: Add it.
This commit is contained in:
Alexandre Duret-Lutz 2023-01-04 15:11:21 +01:00
parent c9ba998200
commit daf797b9d4
5 changed files with 79 additions and 7 deletions
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3
tests/Makefile.am
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@ -1,5 +1,5 @@
## -*- coding: utf-8 -*-
## Copyright (C) 2009-2022 Laboratoire de Recherche et Développement
## Copyright (C) 2009-2023 Laboratoire de Recherche et Développement
## de l'Epita (LRDE).
## Copyright (C) 2003-2006 Laboratoire d'Informatique de Paris 6
## (LIP6), département Systèmes Répartis Coopératifs (SRC), Université
@ -223,6 +223,7 @@ TESTS_misc = \
TESTS_twa = \
core/385.test \
core/521.test \
core/522.test \
core/acc.test \
core/acc2.test \
core/bdddict.test \

43
tests/core/522.test Executable file
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@ -0,0 +1,43 @@
#!/bin/sh
# -*- coding: utf-8 -*-
# Copyright (C) 2023 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/>.
. ./defs
set -e
# For issue #522.
cat >552.hoa <<EOF
HOA: v1
States: 8
Start: 0
Start: 1
AP: 0
acc-name: generalized-Buchi 2
Acceptance: 2 Inf(0)&Inf(1)
--BODY--
State: 0 {0} [t] 2 [t] 3 State: 1 {0} [t] 4 [t] 5 State: 2
{0} [t] 2 [t] 3 State: 3 {0} [t] 6 [t] 7 State: 4 {1} [t] 4 [t] 5
State: 5 {1} [t] 6 [t] 7 State: 6 [t] 6 [t] 7 State: 7 [t] 6 [t] 7
--END--
EOF
# This command, even without --remove-dead, used to break during print_hoa()
autfilt --remove-dead 552.hoa > out.hoa
grep 'States: 7' out.hoa