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Add an option to use WDBA only if it reduces the size of the automaton.

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* src/tgba/tgbaexplicit.hh (num_states): New method.
* src/tgbaalgos/minimize.hh, src/tgbaalgos/minimize.cc
(minimize_obligation): Add a reject_bigger option.
* src/tgbatest/ltl2tgba.cc (-RM): New option.
* src/tgbatest/spotlbtt.test: Test -RM.
* bench/ltl2tgba/algorithms: Include -RM in addition to -Rm, and
replace -RDS by -RIS.
* NEWS: Mention this.
This commit is contained in:
Alexandre Duret-Lutz 2012-08-28 10:25:02 +02:00
parent f7af4e65f6
commit 60ec3acea0
7 changed files with 77 additions and 12 deletions
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NEWS
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@ -31,6 +31,10 @@ New in spot 0.9.2a:
iterated_simulations() will alternate direct and reverse
simulations in a loop as long as it diminishes the size of the
automaton.
* minimize_obligation() has a new option to disable WDBA
minimization it cases it would produce a deterministic automaton
that is bigger than the original TGBA. So this effectively
gives the choice between less states or more determinism.
New in spot 0.9.2 (2012-07-02):