#!/bin/sh
# -*- coding: utf-8 -*-
# Copyright (C) 2009, 2010, 2014, 2015 Laboratoire de Recherche et
# Développement de l'Epita (LRDE).
# Copyright (C) 2003, 2004, 2005 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 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

expect_ce()
{
  run 0 ../ikwiad -CR -e -XH "$1"
  run 0 ../ikwiad -CR -e -DT -XH "$1"
  run 0 ../ikwiad -CR -e'Cou99(shy)' -XH "$1"
  run 0 ../ikwiad -CR -e'Cou99(shy)' -DT -XH "$1"
  run 0 ../ikwiad -CR -eCVWY90 -XH "$1"
  run 0 ../ikwiad -CR -eGV04 -XH "$1"
  run 0 ../ikwiad -CR -eSE05 -XH "$1"
  run 0 ../ikwiad -CR -eTau03 -XH "$1"
}

cat >input <<'EOF'
HOA: v1
States: 3
Start: 0
AP: 2 "a" "b"
acc-name: generalized-Buchi 2
Acceptance: 2 Inf(0)&Inf(1)
properties: trans-labels explicit-labels state-acc deterministic
--BODY--
State: 0 {0 1}
[0&!1] 1
State: 1 {0}
[0] 2
State: 2
[t] 0
--END--
EOF

expect_ce input

#       ________
#      /        v
#    >a--->d--->g
#    /^   /^   /^
#   L |  L |  L |{A}
#  b->c e->f h->i
#
cat >input <<'EOF'
HOA: v1
States: 9
Start: 0
AP: 0
acc-name: Buchi
Acceptance: 1 Inf(0)
properties: trans-labels explicit-labels state-acc complete
--BODY--
State: 0
[t] 1
[t] 3
[t] 6
State: 1
[t] 2
State: 2
[t] 0
State: 3
[t] 4
[t] 6
State: 4
[t] 5
State: 5
[t] 3
State: 6
[t] 7
State: 7
[t] 8
State: 8 {0}
[t] 6
--END--
EOF

expect_ce input

#        v
#     d->a
#     ^  |
#     |  v
#     c<-b<-.
#     ^  |A |B
#    B|  v  |
#     `--e->f
#
# The arcs are ordered so that Couvreur99 succeed after exploring
# the following subgraph (which is one accepting SCC):
#
#        v
#     d->a
#     ^  |
#     |  v
#     c<-b<-.
#        |A |B
#        v  |
#        e->f
#
# However when computing a counter-example the greedy BFS algorithm
# will fail to return the minimal a->b->e->f->b run.  Indeed it first
# walks through a->b->e (which gives acceptance condition A), and
# prefer to continue with e->c (because it gives acceptance condition B),
# and finally closes the cycle with c->d->a
#
cat >input <<'EOF'
HOA: v1
States: 6
Start: 0
AP: 0
acc-name: generalized-Buchi 2
Acceptance: 2 Inf(0)&Inf(1)
properties: trans-labels explicit-labels trans-acc complete
--BODY--
State: 0
[t] 1
State: 1
[t] 2
[t] 4 {0}
State: 2
[t] 3
State: 3
[t] 0
State: 4
[t] 2 {1}
[t] 5
State: 5
[t] 1 {1}
--END--
EOF

expect_ce input


# This graph was randomly generated, and contains one accepting path.
# It triggered a bug in our implementation of GV04 (that didn't see any
# accepting path).
cat >input <<EOF
HOA: v1
States: 20
Start: 0
AP: 0
acc-name: Buchi
Acceptance: 1 Inf(0)
properties: trans-labels explicit-labels trans-acc
--BODY--
State: 0
[t] 1
State: 1
[t] 2
[t] 3
State: 2
[t] 4
[t] 5 {0}
[t] 6
State: 3
[t] 6
[t] 7
State: 4
[t] 8
State: 5
[t] 9
State: 6
[t] 2
State: 7
[t] 10
[t] 11
State: 8
[t] 12
State: 9
[t] 13
State: 10
[t] 13
[t] 14
[t] 15
State: 11
[t] 2
State: 12
[t] 3
State: 13
[t] 16
State: 14
State: 15
[t] 4
State: 16
[t] 17
State: 17
[t] 18
State: 18
[t] 10
[t] 19
State: 19
--END--
EOF

expect_ce input