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complement: fix handling of output_aborter with postproc

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Reported by Salomon Sickert.

* spot/twaalgos/complement.cc: Make sure the output of postproc
is deterministic.
* tests/core/ltlcross.test: Add test case.
* NEWS: Mention the bug.
This commit is contained in:
Alexandre Duret-Lutz 2019-07-11 14:48:50 +02:00
parent 1f8a777e1f
commit e2fad2d7ae
3 changed files with 15 additions and 3 deletions
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8
tests/core/ltlcross.test
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@ -1,6 +1,6 @@
#!/bin/sh
# -*- coding: utf-8 -*-
# Copyright (C) 2012, 2013, 2014, 2016 Laboratoire de Recherche et
# Copyright (C) 2012-2014, 2016, 2019 Laboratoire de Recherche et
# Développement de l'Epita (LRDE).
#
# This file is part of Spot, a model checking library.
@ -59,3 +59,9 @@ ltlcross -D \
"$ltl2tgba -t -taa -r4 %f > %T" \
"$ltl2tgba -t -taa -r4 -c %f > %T" \
"$ltl2tgba -t -taa -r4 -R3 -RDS %f > %T"
# This case, reported by Salomon Sickert, used to break ltlcross in
# Spot 2.8. We use ltl2tgba twice so ltlcross build cross-products.
ltlcross --verbose ltl2tgba ltl2tgba \
-f '(G(F((a1)&(X(X(b1))))))&(G(F((a2)&(X(X(b2))))))&(G(F((a3)&(X(X(b3))))))'