#!/bin/sh
# -*- coding: utf-8 -*-
# Copyright (C) 2011, 2015-2017 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

# The following command, reported by Tomáš Babiak, used to output many
# different automata, because state addresses were used to order the
# successors in the degeneralization.

# Make sure all these runs output the same automaton.

# With valgrind
run 0 ../ikwiad -r7 -x -R3 -N "XF(Gp2 | F(p0 U (p1 & (! p4 | p3))))" > out1
# Without valgrind
for i in 2 3 4 5; do
  ../ikwiad -r7 -x -R3 -N "XF(Gp2 | F(p0 U (p1 & (! p4 | p3))))" > out
  cmp out out1 || exit 1
done

# The next formula used to be translated into a 6-state automaton
# instead of a 4-state automaton, because of an error in the
# implementation of the degen-lcache=1 option causing the last level
# used to be reused, instead of the first one.
run 0 ltl2tgba -B -f '(b & Fa) U XXG(a M Gb)' --stats=%s,%t >out
test "4,14" = "`cat out`"

# Some optimization in the degeneralization allows this formula
# to be reduced to 3 and 5 states...
run 0 ltl2tgba -B -f 'G(Fp1 & (F!p1 W X!p1))' -f 'F(!p0 & Fp0) W Gp0' \
    --stats=%s >out
cat >exp<<EOF
3
5
EOF
diff out exp