ltlfilt.test 7.63 KB
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#! /bin/sh
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# -*- coding: utf-8 -*-
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# Copyright (C) 2013, 2014, 2015, 2016 Laboratoire de Recherche et
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# Développement de l'Epita (LRDE).
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#
# 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/>.


# Check several options of ltlfilt

. ./defs || exit 1

set -e

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ltlfilt=ltlfilt
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checkopt()
{
  cat >exp
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  run 0 $ltlfilt "$@" formulas > out
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  diff exp out
}

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# The empty lines in the file are meant, we want to make sure that
# they are ignored.
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cat >formulas <<EOF
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GFa | FGb /* comment to ignore */
F(GFa | /* tricky /* comment */)*/ Gb)
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F(b W GFa)
GFa | Gb
b W GFa
!{a;b*;c}!
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!{a:b[*/*ignore me*/]:c/*ignore this comment*/}
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a U Fb
G(a & Xb)
Xa
F(a & !Xa & Xb)
{a & {b|c} }
EOF

checkopt --eventual <<EOF
GFa | FGb
F(GFa | Gb)
F(b W GFa)
a U Fb
F(a & !Xa & Xb)
EOF

checkopt --universal <<EOF
GFa | FGb
F(GFa | Gb)
GFa | Gb
G(a & Xb)
EOF

checkopt --eventual --universal <<EOF
GFa | FGb
F(GFa | Gb)
EOF

checkopt --stutter-invariant <<EOF
GFa | FGb
F(GFa | Gb)
F(b W GFa)
GFa | Gb
b W GFa
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!{a:b[*]:c}
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a U Fb
F(a & !Xa & Xb)
a & (b | c)
EOF

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checkopt -c --stutter-invariant <<EOF
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EOF

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checkopt --simplify <<EOF
F(GFa | Gb)
F(GFa | Gb)
F(b W GFa)
GFa | Gb
b W GFa
!a | X(!b R !c)
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!{a:b[*]:c}
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Fb
G(a & Xb)
Xa
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F(a & X(!a & b))
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a & (b | c)
EOF

checkopt --simplify --eventual --unique <<EOF
F(GFa | Gb)
F(b W GFa)
Fb
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F(a & X(!a & b))
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EOF

checkopt --safety <<EOF
!({a;b[*];c}!)
G(a & Xb)
Xa
a & (b | c)
EOF

checkopt --obligation <<EOF
!({a;b[*];c}!)
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!{a:b[*]:c}
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a U Fb
G(a & Xb)
Xa
F(a & !Xa & Xb)
a & (b | c)
EOF

checkopt --guarantee <<EOF
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!{a:b[*]:c}
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a U Fb
Xa
F(a & !Xa & Xb)
a & (b | c)
EOF

checkopt -v --ltl <<EOF
!({a;b[*];c}!)
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!{a:b[*]:c}
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EOF

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checkopt -v --ap=3 <<EOF
GFa | FGb
F(GFa | Gb)
F(b W GFa)
GFa | Gb
b W GFa
a U Fb
G(a & Xb)
Xa
F(a & !Xa & Xb)
EOF

checkopt --ap=2..3 <<EOF
GFa | FGb
F(GFa | Gb)
F(b W GFa)
GFa | Gb
b W GFa
!({a;b[*];c}!)
!{a:b[*]:c}
a U Fb
G(a & Xb)
F(a & !Xa & Xb)
a & (b | c)
EOF

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checkopt -v --stutter-invariant <<EOF
!({a;b[*];c}!)
G(a & Xb)
Xa
EOF

checkopt --equivalent-to 'GFa | FGb' <<EOF
GFa | FGb
F(GFa | Gb)
F(b W GFa)
EOF
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# Restrict to LTL
run 0 ltlfilt --ltl formulas > formulas2
mv formulas2 formulas

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checkopt --ltl --from-ltlf=al <<EOF
al & (G(!al | F(a & al)) | F(al & G(!al | b))) & (al U G!al)
al & F(al & (G(!al | F(a & al)) | G(!al | b))) & (al U G!al)
al & F(al & ((!al | b) W G(!al | F(a & al)))) & (al U G!al)
al & (G(!al | F(a & al)) | G(!al | b)) & (al U G!al)
al & ((!al | b) W G(!al | F(a & al))) & (al U G!al)
al & (a U (al & F(al & b))) & (al U G!al)
al & G(!al | (a & X(al & b))) & (al U G!al)
al & X(a & al) & (al U G!al)
al & F(a & al & !X(a & al) & X(al & b)) & (al U G!al)
a & al & (b | c) & (al U G!al)
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EOF

checkopt --ltl --from-ltlf='!dead' <<EOF
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!dead & (G(dead | F(a & !dead)) | F(!dead & G(b | dead))) & (!dead U Gdead)
!dead & F(!dead & (G(dead | F(a & !dead)) | G(b | dead))) & (!dead U Gdead)
!dead & F(!dead & ((b | dead) W G(dead | F(a & !dead)))) & (!dead U Gdead)
!dead & (G(dead | F(a & !dead)) | G(b | dead)) & (!dead U Gdead)
!dead & ((b | dead) W G(dead | F(a & !dead))) & (!dead U Gdead)
!dead & (a U (!dead & F(b & !dead))) & (!dead U Gdead)
!dead & G(dead | (a & X(b & !dead))) & (!dead U Gdead)
!dead & X(a & !dead) & (!dead U Gdead)
!dead & F(a & !dead & !X(a & !dead) & X(b & !dead)) & (!dead U Gdead)
a & !dead & (b | c) & (!dead U Gdead)
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EOF
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cat >in <<EOF
a & Xb & c
a & b & GF(a | c) & FG(a | c)
b & GF(a | c) & FG(a | c)
G(d & e) | FG(Xf| !c) | h | i
b & !Xc & e & (f | g)
b & GF(a | c) & !GF!(a | c)
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F(a <-> b) -> (c xor d)
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EOF

cat >exp <<EOF
p0 & Xp1
p0 & p1 & GF(p0 | p2) & FG(p0 | p2)
p0 & GFp1 & FGp1
p0 | Gp1 | FG(p2 | Xp3)
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p0 | Gp1
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EOF

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run 0 $ltlfilt -u --nnf --relabel-bool=pnn in >out
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diff exp out
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cat >exp <<EOF
#define p0 (a && c)
#define p1 (b)
p0 && Xp1
#define p0 (a)
#define p1 (b)
#define p2 (c)
p0 && p1 && []<>(p0 || p2) && <>[](p0 || p2)
#define p0 (b)
#define p1 (a || c)
p0 && []<>p1 && <>[]p1
#define p0 (h || i)
#define p1 (d && e)
#define p2 (!c)
#define p3 (f)
p0 || []p1 || <>[](p2 || Xp3)
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#define p0 ((c && !d) || (!c && d))
#define p1 ((a && !b) || (!a && b))
p0 || []p1
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EOF

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run 0 $ltlfilt -s -u --nnf --relabel-bool=pnn --define in >out
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diff exp out

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cat >exp <<EOF
#define p0 (a)
#define p1 (c)
#define p2 (b)
p0 && p1 && Xp2
#define p0 (a)
#define p1 (b)
#define p2 (c)
p0 && p1 && []<>(p0 || p2) && <>[](p0 || p2)
#define p0 (b)
#define p1 (a)
#define p2 (c)
p0 && []<>(p1 || p2) && <>[](p1 || p2)
#define p0 (h)
#define p1 (i)
#define p2 (d)
#define p3 (e)
#define p4 (c)
#define p5 (f)
p0 || p1 || [](p2 && p3) || <>[](!p4 || Xp5)
#define p0 (b)
#define p1 (e)
#define p2 (f)
#define p3 (g)
#define p4 (c)
p0 && p1 && (p2 || p3) && !Xp4
#define p0 (b)
#define p1 (a)
#define p2 (c)
p0 && []<>(p1 || p2) && ![]<>!(p1 || p2)
#define p0 (a)
#define p1 (b)
#define p2 (c)
#define p3 (d)
<>(p0 <-> p1) -> !(p2 <-> p3)
EOF

run 0 $ltlfilt -s -u --relabel=pnn --define in >out
diff exp out

toolong='((p2=0) * (p3=1))' # work around the 80-col check
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cat >exp <<EOF
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#define p0 (a=1)
#define p1 (c=1)
#define p2 (b=1)
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(p0=1) * (p1=1) * (X(p2=1))
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#define p0 (a=1)
#define p1 (b=1)
#define p2 (c=1)
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(p0=1) * (p1=1) * (G(F((p0=1) + (p2=1)))) * (F(G((p0=1) + (p2=1))))
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#define p0 (b=1)
#define p1 (a=1)
#define p2 (c=1)
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(p0=1) * (G(F((p1=1) + (p2=1)))) * (F(G((p1=1) + (p2=1))))
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#define p0 (h=1)
#define p1 (i=1)
#define p2 (d=1)
#define p3 (e=1)
#define p4 (c=1)
#define p5 (f=1)
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(p0=1) + (p1=1) + (G((p2=1) * (p3=1))) + (F(G((p4=0) + (X(p5=1)))))
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#define p0 (b=1)
#define p1 (e=1)
#define p2 (f=1)
#define p3 (g=1)
#define p4 (c=1)
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(p0=1) * (p1=1) * ((p2=1) + (p3=1)) * (X(p4=0))
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#define p0 (c=1)
#define p1 (d=1)
#define p2 (a=1)
#define p3 (b=1)
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((p0=1) * (p1=0)) + ((p0=0) * (p1=1)) + (G(((p2=1) * (p3=0)) + $toolong))
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EOF
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run 0 $ltlfilt -p --wring -u --nnf --relabel=pnn --define in >out
diff exp out

run 0 $ltlfilt -0 in > out
perl -i -pe 's/\0/@\n/g' out
cat >exp <<EOF
a & c & Xb@
a & b & GF(a | c) & FG(a | c)@
b & GF(a | c) & FG(a | c)@
h | i | G(d & e) | FG(!c | Xf)@
b & e & (f | g) & !Xc@
b & GF(a | c) & !GF!(a | c)@
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F(a <-> b) -> (c xor d)@
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EOF
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diff exp out

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SPOT_STUTTER_CHECK=0 \
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$ltlfilt --stutter-invariant -f '!{a:b*:c}' 2> stderr && exit 1
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test $? = 2
grep 'non-LTL' stderr

SPOT_STUTTER_CHECK=555 \
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$ltlfilt --stutter-invariant -f '!{a:b*:c}' 2> stderr && exit 1
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test $? = 2
grep 'invalid' stderr

SPOT_STUTTER_CHECK=5 \
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$ltlfilt --stutter-invariant -f '!{a:b*:c}'
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# This one was incorrectly diagnosed as stutter invariant because of a
# bug in the bitvectors.
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$ltlfilt --stutter-invariant -f 'F(a & XXXXXX!a)' && exit 1
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$ltlfilt -c -o 'foo' -f a 2>stderr && exit 1
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grep 'ltlfilt: options --output and --count are incompatible' stderr

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out=`$ltlfilt -f 'G(a xor b) -> F(c <-> Xd)' --unabbreviate='^iF'`
exp='(1 U (c <-> Xd)) | !G!(a <-> b)'
test "$out" = "$exp"

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$ltlfilt -f 'GF"a\"\\b"' > out
test "`cat out`" = 'GF"a\"\\b"'

$ltlfilt --lbt-input -f 'G F "a\"\\b"' -l > out
test "`cat out`" = 'G F "a\"\\b"'

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$ltlfilt --size=foo=2..3  2>stderr && exit 1
grep 'invalid range.*should start with' stderr

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cat >out <<EOF
test1,"""a b"" U c"
"""a b"" U c",test2
EOF
ltlfilt out/1 > out.1
ltlfilt out/2 > out.2
diff out out.1
diff out out.2

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true