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bin: add a --check option for automata outputs

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This currently only allows extra check for stutter invariance.

* src/bin/common_aoutput.cc: Add check option,
and test stutter invariance.
* src/twaalgos/stutter.cc, src/twaalgos/stutter.hh
(check_stutter_invariance): New function.
* src/tests/stutter-tgba.test: Test it.
This commit is contained in:
Alexandre Duret-Lutz 2015-05-10 16:30:12 +02:00
parent fa37bc5f72
commit fe2fc88fc6
4 changed files with 92 additions and 0 deletions
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34
src/twaalgos/stutter.cc
View file

@ -29,6 +29,8 @@
#include "ltlvisit/remove_x.hh"
#include "twaalgos/product.hh"
#include "twaalgos/ltl2tgba_fm.hh"
#include "twaalgos/isdet.hh"
#include "twaalgos/dtgbacomp.hh"
#include "twa/twaproduct.hh"
#include "twa/bddprint.hh"
#include <deque>
@ -637,4 +639,36 @@ namespace spot
SPOT_UNREACHABLE();
}
}
bool
check_stutter_invariance(const twa_graph_ptr& aut, const ltl::formula* f)
{
bool is_stut = aut->is_stutter_invariant();
if (is_stut)
return is_stut;
twa_graph_ptr neg = nullptr;
if (f)
{
auto* nf = ltl::unop::instance(ltl::unop::Not, f->clone());
neg = translator(aut->get_dict()).run(nf);
nf->destroy();
}
else
{
// If the automaton is deterministic, we
// know how to complement it.
aut->prop_deterministic(is_deterministic(aut));
if (!aut->is_deterministic())
return false;
neg = dtgba_complement(aut);
}
is_stut = is_stutter_invariant(make_twa_graph(aut, twa::prop_set::all()),
std::move(neg), get_all_ap(aut));
if (is_stut)
aut->prop_stutter_invariant(is_stut);
return is_stut;
}
}