Commit 3fd49da1 authored by Alexandre Duret-Lutz's avatar Alexandre Duret-Lutz
Browse files

complete: new algorithm for TGBAs

* src/tgbaalgos/complete.cc, src/tgbaalgos/complete.hh: New files.
* src/tgbaalgos/Makefile.am: Add them.
parent 78e76eb0
......@@ -29,13 +29,14 @@ tgbaalgosdir = $(pkgincludedir)/tgbaalgos
tgbaalgos_HEADERS = \
bfssteps.hh \
complete.hh \
compsusp.hh \
cutscc.hh \
cycles.hh \
dbacomp.hh \
degen.hh \
dotty.hh \
dottydec.hh \
dotty.hh \
dupexp.hh \
eltl2tgba_lacim.hh \
emptiness.hh \
......@@ -56,12 +57,13 @@ tgbaalgos_HEADERS = \
randomgraph.hh \
reachiter.hh \
reducerun.hh \
reductgba_sim.hh \
replayrun.hh \
rundotdec.hh \
safety.hh \
save.hh \
scc.hh \
sccfilter.hh \
scc.hh \
se05.hh \
simulation.hh \
stats.hh \
......@@ -69,12 +71,12 @@ tgbaalgos_HEADERS = \
tau03.hh \
tau03opt.hh \
translate.hh \
reductgba_sim.hh \
word.hh
noinst_LTLIBRARIES = libtgbaalgos.la
libtgbaalgos_la_SOURCES = \
bfssteps.cc \
complete.cc \
compsusp.cc \
cutscc.cc \
cycles.cc \
......@@ -102,6 +104,7 @@ libtgbaalgos_la_SOURCES = \
randomgraph.cc \
reachiter.cc \
reducerun.cc \
reductgba_sim.cc \
replayrun.cc \
rundotdec.cc \
safety.cc \
......@@ -115,7 +118,6 @@ libtgbaalgos_la_SOURCES = \
tau03.cc \
tau03opt.cc \
translate.cc \
reductgba_sim.cc \
weight.cc \
weight.hh \
word.cc
......
// -*- coding: utf-8 -*-
// Copyright (C) 2013 Laboratoire de Recherche et Développement
// de l'Epita.
//
// This file is part of Spot, a model checking library.
//
// Spot is free software; you can redistribute it and/or modify it
// under the terms of the GNU General Public License as published by
// the Free Software Foundation; either version 3 of the License, or
// (at your option) any later version.
//
// Spot is distributed in the hope that it will be useful, but WITHOUT
// ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
// or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public
// License for more details.
//
// You should have received a copy of the GNU General Public License
// along with this program. If not, see <http://www.gnu.org/licenses/>.
#include "complete.hh"
#include "reachiter.hh"
#include "ltlast/constant.hh"
namespace spot
{
namespace
{
class tgbacomplete_iter:
public tgba_reachable_iterator_depth_first_stack
{
bdd_dict* dict_;
tgba_explicit_number* out_;
bdd addacc_;
typedef state_explicit_number::transition trans;
public:
tgbacomplete_iter(const tgba* a)
: tgba_reachable_iterator_depth_first_stack(a),
dict_(a->get_dict()),
out_(new tgba_explicit_number(dict_)),
addacc_(bddfalse)
{
dict_->register_all_variables_of(a, out_);
if (a->number_of_acceptance_conditions() == 0)
{
const ltl::formula* t = ltl::constant::true_instance();
int accvar =
dict_->register_acceptance_variable(t, out_);
addacc_ = bdd_ithvar(accvar);
out_->set_acceptance_conditions(addacc_);
}
else
{
out_->set_acceptance_conditions(a->all_acceptance_conditions());
}
}
tgba_explicit_number*
result()
{
return out_;
}
void
end()
{
out_->merge_transitions();
// create a sink state if needed.
if (out_->has_state(0))
{
trans* t = out_->create_transition(0, 0);
t->condition = bddtrue;
}
}
void process_state(const state*, int n,
tgba_succ_iterator* i)
{
// add a transition to a sink state if the state is not complete.
bdd all = bddtrue;
for (i->first(); !i->done(); i->next())
all -= i->current_condition();
if (all != bddfalse)
{
trans* t = out_->create_transition(n, 0);
t->condition = all;
}
}
void
process_link(const state*, int in,
const state*, int out,
const tgba_succ_iterator* si)
{
assert(in > 0);
assert(out > 0);
trans* t1 = out_->create_transition(in, out);
t1->condition = si->current_condition();
t1->acceptance_conditions =
si->current_acceptance_conditions() | addacc_;
}
};
} // anonymous
tgba_explicit_number* tgba_complete(const tgba* aut)
{
tgbacomplete_iter ci(aut);
ci.run();
return ci.result();
}
}
// -*- coding: utf-8 -*-
// Copyright (C) 2013 Laboratoire de Recherche et Développement
// de l'Epita.
//
// This file is part of Spot, a model checking library.
//
// Spot is free software; you can redistribute it and/or modify it
// under the terms of the GNU General Public License as published by
// the Free Software Foundation; either version 3 of the License, or
// (at your option) any later version.
//
// Spot is distributed in the hope that it will be useful, but WITHOUT
// ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
// or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public
// License for more details.
//
// You should have received a copy of the GNU General Public License
// along with this program. If not, see <http://www.gnu.org/licenses/>.
#ifndef SPOT_TGBAALGOS_COMPLETE_HH
# define SPOT_TGBAALGOS_COMPLETE_HH
#include "tgba/tgbaexplicit.hh"
namespace spot
{
/// Complete a TGBA
SPOT_API tgba_explicit_number*
tgba_complete(const tgba* aut);
}
#endif // SPOT_TGBAALGOS_COMPLETE_HH
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