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fix eventual/universal properties for ->/<->/xor

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* spot/tl/formula.cc: Correctly set eventual and universal properties
for ->, <->, and xor.  This wasn't really relevant before, but there
are now situation where those are not rewritten.
* tests/core/kind.test: Adjust expected output.
* tests/core/ltl2tgba2.test: New test case, reported by Florian
Renkin.
* NEWS: Mention the bug.
This commit is contained in:
Alexandre Duret-Lutz 2021-02-03 12:20:42 +01:00
parent 93d8f43285
commit c06e15e085
4 changed files with 24 additions and 10 deletions
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9
tests/core/ltl2tgba2.test
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@ -507,3 +507,12 @@ med.hoa:4,14
high.hoa:4,14
EOF
diff exp out
# This used to fail because ltl-split would not detect
# the (GFa <-> (GFb & GFc & GFd & GFe & GFf & GFg & GFh)) part
# as suspendable.
f='G((a -> X((!a U b) | G!a)) & (a -> X(G!a | (!a U c))) & (a -> X(G!a
| (!a U d))) & (a -> X(G!a | (!a U e))) & (a -> X(G!a | (!a U f))) &
(a -> X(G!a | (!a U g))) & (a -> X(G!a | (!a U h)))) & (GFa <-> (GFb &
GFc & GFd & GFe & GFf & GFg & GFh))'
test 128 = `ltl2tgba -G -D "$f" --stats=%s`