#! /bin/sh
# Copyright (C) 2013, 2014 Laboratoire de Recherche et Developement to
# 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

run 0 ../../bin/ltlfilt -q --remove-x -f 'Xa' --equivalent-to 'Ga | (!a & Fa)'

run 1 ../../bin/ltlfilt -q --stutter-invariant -f 'Xa'

run 0 ../../bin/ltlfilt -q --stutter-invariant -f 'F(!a & Xa & Xb)'

run 1 ../../bin/ltlfilt -q --stutter-invariant -f 'F(Xa & Xb)'

run 0 ../../bin/ltlfilt --remove-x -f 'F(!a & Xa & Xb)' > out
grep -v X out
run 0 ../../bin/ltlfilt -q --stutter-invariant -F 'out'


run 1 ../../bin/ltlfilt -q --stutter-invariant -f 'F(!a & Xb)'
run 0 ../../bin/ltlfilt --remove-x -f 'F(!a & Xb)' > out
grep -v X out
# The output is stutter invariant, even if the input wasn't.
run 0 ../../bin/ltlfilt -q --stutter-invariant -F 'out'