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simplify: rewrite GF(a & Fb) as G(Fa & Fb)

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This addresses part of #35, and is just a generalization of the rules
from 646c5170 for #263 (hence, no new documentation).

* spot/tl/simplify.cc: Implement this.
* tests/core/reduccmp.test: Add test cases.
* tests/core/stutter-tgba.test: Adjust to expect smaller automata.
This commit is contained in:
Alexandre Duret-Lutz 2017-09-02 19:54:07 +02:00
parent e8527d5ae9
commit 6cd6802ace
3 changed files with 64 additions and 28 deletions
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6
tests/core/stutter-tgba.test
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@ -1,6 +1,6 @@
#! /bin/sh
# -*- coding: utf-8 -*-
# Copyright (C) 2014, 2015, 2016 Laboratoire de Recherche et
# Copyright (C) 2014-2017 Laboratoire de Recherche et
# Développement de l'Epita (LRDE).
#
# This file is part of Spot, a model checking library.
@ -29,13 +29,13 @@ $ltl2tgba '!FG(a | Xa | G!a)' -H | $autfilt -H --destut > pos.hoa
$ltl2tgba 'FG(a | Xa | G!a)' -H | $autfilt -H --destut > neg.hoa
$autfilt pos.hoa --product neg.hoa -H > prod.hoa
$autfilt --is-empty prod.hoa -q && exit 1
$autfilt --states=10 prod.hoa -q
$autfilt --states=7 prod.hoa -q
$ltl2tgba '!FG(a | Xa | G!a)' -H | $autfilt -H --instut > pos.hoa
$ltl2tgba 'FG(a | Xa | G!a)' -H | $autfilt -H --instut > neg.hoa
$autfilt pos.hoa --product neg.hoa -H > prod.hoa
$autfilt --is-empty prod.hoa -q && exit 1
$autfilt --states=12 prod.hoa -q
$autfilt --states=9 prod.hoa -q
# Check for issue #7.