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simplify: remove an incorect SERE simplification

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* src/ltlvisit/simplify.cc, doc/tl/tl.tex: Remove the rule.
* src/ltltest/reduc0.test: Add a regression test.
* src/ltltest/reduccmp.test: Adjust test cases for its removal.
* NEWS: Mention it.
This commit is contained in:
Alexandre Duret-Lutz 2014-12-04 22:50:43 +01:00
parent 88da1ad84d
commit 1156866630
5 changed files with 26 additions and 31 deletions
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4
NEWS
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@ -181,6 +181,10 @@ New in spot 1.2.5a (not yet released)
* Bug fixes:
- Remove one incorrect simplification rule for PSL discovered
via checks on random formulaes. (The bug was very unlikely
to trigger on non-random formulas, because it requires a SERE
with an entire subexpression that is unsatisfiable.)
- When the automaton resulting from the translation of a positive
formula is deterministic, ltlcross will compute its complement
to perform additional checks against other translations of the