# -*- mode: python; coding: iso-8859-1 -*-
# Copyright (C) 2004, 2010  Laboratoire d'Informatique de Paris 6 (LIP6),
# département Systèmes Répartis Coopératifs (SRC), Université Pierre
# et Marie Curie.
#
# 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 2 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 Spot; see the file COPYING.  If not, write to the Free
# Software Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
# 02111-1307, USA.

import spot
import buddy
import sys

alloc = spot.bdd_allocator()

alloc.allocate_variables(3)

a = buddy.bdd_ithvar(0)
b = buddy.bdd_ithvar(1)
c = buddy.bdd_ithvar(2)

w = -a & -b | -c & b | a & -b

isop = spot.minato_isop(w)

i = isop.next()
l = []
while i != buddy.bddfalse:
    buddy.bdd_printset(i)
    print
    l.append(i)
    i = isop.next()

sys.exit(l == [-a, -c])