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Introduce a class to complement a WDBA on-the-fly.

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* src/tgba/wdbacomp.hh, src/tgba/wdbacomp.cc: New file.
* src/tgba/Makefile.am: Add them.
* src/tgbaalgos/minimize.cc (minimize_obligation): Use
wdba_complement().
This commit is contained in:
Alexandre Duret-Lutz 2011-01-06 11:40:57 +01:00
parent b9dd72b29b
commit 474e69565b
5 changed files with 347 additions and 7 deletions
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10
src/tgbaalgos/minimize.cc
View file

@ -39,6 +39,7 @@
#include "misc/bddlt.hh"
#include "tgba/tgbaproduct.hh"
#include "tgba/tgbatba.hh"
#include "tgba/wdbacomp.hh"
#include "tgbaalgos/powerset.hh"
#include "tgbaalgos/gtec/gtec.hh"
#include "tgbaalgos/safety.hh"
@ -636,9 +637,11 @@ namespace spot
{
delete ec;
delete p;
// Complement the minimized WDBA.
min_aut_f->complement_all_acceptance_conditions();
tgba* p = new tgba_product(aut_f, min_aut_f);
tgba* neg_min_aut_f = wdba_complement(min_aut_f);
tgba* p = new tgba_product(aut_f, neg_min_aut_f);
emptiness_check* ec = couvreur99(p);
res = ec->check();
@ -647,13 +650,12 @@ namespace spot
// Finally, we are now sure that it was safe
// to minimize the automaton.
ok = true;
// Get the original automaton back.
min_aut_f->complement_all_acceptance_conditions();
}
delete res;
delete ec;
delete p;
delete neg_min_aut_f;
}
else
{