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fix streett_to_generalized_buchi

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Fixes #316.

* spot/twaalgos/totgba.cc: Fix confusing definition of scc_inf_wo_fin.
* tests/python/streett_totgba2.py: New test case.
* tests/Makefile.am: Add it.
* NEWS: Mention the bug.
This commit is contained in:
Alexandre Duret-Lutz 2018-01-14 15:04:02 +01:00
parent 8a74ae6c9d
commit 9464043d39
4 changed files with 87 additions and 5 deletions
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@ -243,6 +243,10 @@ New in spot 2.4.4.dev (net yet released)
set. In spot 2.4.x this function was only used by autfilt
--simplify-acceptance; in 2.5 it is now used in remove_fin().
- spot::streett_to_generalized_buchi() could generate incorrect
automata with empty language if some Fin set did not intersect all
accepting SCCs (in other words, the fix from 2.4.1 was incorrect).
- ltlcross could crash when calling remove_fin() on an automaton
with 32 acceptance sets would need an additional set.