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Introduce scc_filter_states().

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The main motivation is the upcoming patch that introduces
simulation_sba() and requires this function.

* src/tgbaalgos/sccfilter.hh, src/tgbaalgos/sccfilter.cc: Implement it.
* src/tgbaalgos/postproc.cc: Use it for monitors, because we do not
care about acceptance conditions.
* NEWS: Mention it.
This commit is contained in:
Alexandre Duret-Lutz 2013-05-12 17:22:00 +02:00
parent 2cab8197e5
commit 6b5b002ff9
4 changed files with 133 additions and 7 deletions
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6
NEWS
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@ -24,6 +24,12 @@ New in spot 1.1a (not yet released):
Some illustrations of this point and the previous one can be
found in the man page for ltl2tgba(1).
- There is a new function scc_filter_states() that removes all
useless states from a TGBA. It is actually an abbridged version
of scc_filter() that does not alter the acceptance conditions of
the automaton. scc_filter_state() should be used when
post-processing TGBAs that actually represent BAs.
* Bug fixes:
- genltl --gh-r generated the wrong formulas due to a typo.