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implement is_liveness() and is_liveness_automaton()

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* spot/twaalgos/strength.cc, spot/twaalgos/strength.hh,
spot/tl/hierarchy.cc, spot/tl/hierarchy.hh: Here.
* bin/ltlfilt.cc (--liveness): New filter.
* NEWS: Mention those.
* tests/core/ltlfilt.test, tests/python/ltlsimple.py: Add test cases.
This commit is contained in:
Alexandre Duret-Lutz 2018-10-15 21:35:09 +02:00
parent d2316b1428
commit d94efe9fe1
8 changed files with 63 additions and 11 deletions
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3
tests/python/ltlsimple.py
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@ -142,3 +142,6 @@ def myparse(input):
# This used to fail, because myparse would return a pointer
# to pf.f inside the destroyed pf.
assert myparse('a U b') == spot.formula('a U b')
assert spot.is_liveness('a <-> GFb')
assert not spot.is_liveness('a & GFb')