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powerset: deal with accepting sinks more effectively

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Part of #444.

* spot/twaalgos/powerset.cc, spot/twaalgos/powerset.hh: Implement
accepting sink handling.
* spot/twaalgos/minimize.cc (minimize_wdba): Pass sinks to
tgba_powerset.
* spot/misc/bitvect.hh: Add an interesects method.
* tests/core/ltl2tgba2.test: More tests.
* NEWS: Mention this new feature.
This commit is contained in:
Alexandre Duret-Lutz 2020-12-08 17:55:50 +01:00
parent eeaed5592f
commit 48edfd80c2
6 changed files with 75 additions and 8 deletions
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NEWS
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@ -141,6 +141,10 @@ New in spot 2.9.5.dev (not yet released)
automata-based implication checks for formula
simplifications. Defaults to 64.
- tgba_powerset() now takes an extra optional argument to specify a
list of accepting sinks states if some are known. Doing so can
cut the size of the powerset automaton by 2^|sinks| in favorable
cases.
Python: