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Add support for {SERE} and !{SERE} closure operators.

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* src/ltlast/unop.hh, src/ltlast/unop.cc: Introduce Closure and
NegClosure operators.
* src/ltlparse/ltlparse.yy: Recognize {foo} as a Closure.
* src/ltlvisit/mark.cc: Consider NegClosure as a marked operator.
* src/tgbaalgos/ltl2tgba_fm.cc (ratexp_trad_visitor): Add option to
select whether the empty_word should act like true (for {SERE}
and {!SERE}) or false (for {SERE}<>->Exp or {SERE}[]->Exp).
(ltl_trad_visitor): Translate Closure and NegClosure.
* src/tgbatest/ltl2tgba.test: Add more tests.
* src/ltlvisit/basicreduce.cc, src/ltlvisit/consterm.cc,
src/ltlvisit/nenoform.cc, src/ltlvisit/reduce.cc,
src/ltlvisit/syntimpl.cc, src/ltlvisit/tostring.cc,
src/ltlvisit/tunabbrev.cc, src/tgba/formula2bdd.cc,
src/tgbaalgos/eltl2tgba_lacim.cc, src/tgbaalgos/ltl2tgba_lacim.cc,
src/tgbaalgos/ltl2taa.cc: Straightforward update to support or
assert on these new operators.
This commit is contained in:
Alexandre Duret-Lutz 2010-03-09 09:48:08 +01:00
parent f618e6bc1a
commit 2f8c4ac8b7
17 changed files with 343 additions and 74 deletions
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10
src/tgbatest/ltl2tgba.test
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@ -70,6 +70,16 @@ check_psl 'G({(a;b)*}<>->x)&G({(c;d)*}<>->y)'
check_psl '{(#e + a):c*:(#e + b)}<>->d'
check_psl '{a;e;f:(g*);h}<>->d'
check_psl '{(a:b)* & (c*:d)}<>->e'
check_psl '{(a:b)*}'
check_psl 'G{(a:b)*}'
check_psl '{a;b}'
check_psl '{(a;b)*}'
check_psl 'G{(a;b)*}'
check_psl '{a*}[]->{b*}'
# Example from "Beyond Hardware Verification" by Glazberg, Moulin, Orni,
# Ruah, Zarpas (2007).
check_psl '{1*;req;ack;1}[]->{start;busy*;done}'
# Make sure 'a U (b U c)' has 3 states and 6 transitions,
# before and after degeneralization.