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twa: add prop_set::improve_det

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Algorithms that remove transitions can turn a non-deterministic
automaton into a deterministic one, so we need to be able to specify
that determinism can be improved (as opposed to preserved).

* spot/twa/twa.hh (twa::prop_set::improve_det): New attribute.
(twa::prop_keep, twa::prop_copy): Honor it.
* spot/tl/exclusive.cc, spot/twaalgos/alternation.cc,
spot/twaalgos/complete.cc, spot/twaalgos/degen.cc,
spot/twaalgos/determinize.cc, spot/twaalgos/mask.cc,
spot/twaalgos/minimize.cc, spot/twaalgos/remfin.cc,
spot/twaalgos/remprop.cc, spot/twaalgos/sbacc.cc,
spot/twaalgos/sccfilter.cc, spot/twaalgos/simulation.cc,
spot/twaalgos/strength.cc, spot/twaalgos/stutter.cc,
spot/twaalgos/totgba.cc: Adjust calls to prop_keep() and
prop_copy().
This commit is contained in:
Alexandre Duret-Lutz 2016-12-30 10:38:04 +01:00
parent ada8185361
commit 684c9c47c4
17 changed files with 62 additions and 35 deletions
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7
spot/twaalgos/simulation.cc
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@ -594,15 +594,10 @@ namespace spot
res->prop_copy(original_,
{ false, // state-based acc forced below
true, // weakness preserved,
true, // determinism checked and overridden below
// and "unambiguous" property preserved
false, true, // determinism improved
true, // stutter inv.
});
// !unambiguous and !semi-deterministic are not preserved
if (original_->prop_semi_deterministic().is_false())
res->prop_semi_deterministic(trival::maybe());
if (original_->prop_unambiguous().is_false())
res->prop_unambiguous(trival::maybe());
if (!Cosimulation)
res->prop_deterministic(nb_minato == nb_satoneset);
if (Sba)