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Strip useless acceptance conditions in scc_filter().

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A useless acceptance conditions is one that is always implied by
another.

* src/misc/bddop.hh, src/misc/bddop.cc
(compute_neg_acceptance_conditions): New function.
* src/tgba/tgbaexplicit.hh, src/tgba/tgbaexplicit.cc
(set_acceptance_conditions): New function.
* src/tgbaalgos/scc.cc (build_map, build_scc_stats, dump_scc_dot):
Keep track of useful acceptance conditions.
(useful_acc_of): New function.
* src/tgbaalgos/scc.hh (scc_stats, scc_map::scc::useful_scc): New
attributes.
* src/tgbaalgos/sccfilter.cc (filter_iter): Adjust to filter
useless acceptance conditions.
(scc_filter): Compute useful acceptance conditions and pass them
to filter_iter.
This commit is contained in:
Alexandre Duret-Lutz 2009-11-20 19:21:12 +01:00
parent 5d427f6d15
commit dfb9c6622b
8 changed files with 130 additions and 11 deletions
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ChangeLog
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@ -1,3 +1,24 @@
2009-11-20 Alexandre Duret-Lutz <adl@lrde.epita.fr>
Strip useless acceptance conditions in scc_filter().
A useless acceptance conditions is one that is always implied by
another.
* src/misc/bddop.hh, src/misc/bddop.cc
(compute_neg_acceptance_conditions): New function.
* src/tgba/tgbaexplicit.hh, src/tgba/tgbaexplicit.cc
(set_acceptance_conditions): New function.
* src/tgbaalgos/scc.cc (build_map, build_scc_stats, dump_scc_dot):
Keep track of useful acceptance conditions.
(useful_acc_of): New function.
* src/tgbaalgos/scc.hh (scc_stats, scc_map::scc::useful_scc): New
attributes.
* src/tgbaalgos/sccfilter.cc (filter_iter): Adjust to filter
useless acceptance conditions.
(scc_filter): Compute useful acceptance conditions and pass them
to filter_iter.
2009-11-20 Alexandre Duret-Lutz <adl@va-et-vient.net>
* src/tgbaalgos/sccfilter.cc (scc_filter): Merge transitions