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simulation: many fixes.

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* src/tgbaalgos/simulation.cc: Attempt to fix several cases.
* src/tgbatest/sim.test: Add more tests.
* src/tgbatest/sim2.test: New file.
* src/tgbatest/Makefile.am: Add it.
This commit is contained in:
Alexandre Duret-Lutz 2013-02-13 18:17:30 +01:00
parent a965af711c
commit 1337c9c3e1
4 changed files with 128 additions and 33 deletions
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104
src/tgbaalgos/simulation.cc
View file

@ -402,7 +402,7 @@ namespace spot
// Contains the relation between the names of the states in
// the automaton returned by the complementation and the one
// get in argument to the constructor of acc_compl.
old_name_ = acc_compl.old_name_;
std::swap(old_name_, acc_compl.old_name_);
a_ = acc_compl.out_;
@ -450,7 +450,7 @@ namespace spot
relation_[init] = init;
order_ = acc_compl.order_;
std::swap(order_, acc_compl.order_);
all_acceptance_conditions_ = a_->all_acceptance_conditions();
}
@ -1077,8 +1077,11 @@ namespace spot
bool could_imply(bdd left, bdd left_class,
bdd right, bdd right_class)
{
bdd f1 = bdd_restrict(left, on_cycle_);
bdd g1 = bdd_restrict(left, !on_cycle_);
bdd f1 = bdd_relprod(left, on_cycle_, on_cycle_);
bdd g1 = bdd_relprod(left, !on_cycle_, on_cycle_);
//bdd f1 = bdd_restrict(left, on_cycle_);
//bdd g1 = bdd_restrict(left, !on_cycle_);
return could_imply_aux(f1, g1, left_class,
right, right_class);
}
@ -1099,8 +1102,11 @@ namespace spot
{
bdd accu = it1->second;
bdd f1 = bdd_restrict(it1->first, on_cycle_);
bdd g1 = bdd_restrict(it1->first, !on_cycle_);
bdd f1 = bdd_relprod(it1->first, on_cycle_, on_cycle_);
bdd g1 = bdd_relprod(it1->first, !on_cycle_, on_cycle_);
// bdd f1 = bdd_restrict(it1->first_, on_cycle_);
// bdd g1 = bdd_restrict(it1->first_, !on_cycle_);
for (list_bdd_bdd::const_iterator it2 = now_to_next.begin();
it2 != now_to_next.end();
@ -1125,7 +1131,8 @@ namespace spot
inline bool is_out_scc(bdd b)
{
return bddfalse != bdd_restrict(b, !on_cycle_);
return bddfalse != bdd_relprod(b, !on_cycle_, on_cycle_);
// return bddfalse != bdd_restrict(b, !on_cycle_);
}
#define create_cstr(src, dst, constraint) \
@ -1143,6 +1150,7 @@ namespace spot
const state* src_right,
std::list<constraint>& constraint)
{
assert(src_left != src_right);
// Determine which is the current case.
bool out_scc_left = is_out_scc(left);
bool out_scc_right = is_out_scc(right);
@ -1152,9 +1160,12 @@ namespace spot
dest_class = bdd_existcomp(right, all_class_var_);
const state* dst_right = revert_relation_[dest_class];
assert(src_left != dst_left || src_right != dst_right);
left = bdd_exist(left, all_class_var_ & on_cycle_);
right = bdd_exist(right, all_class_var_ & on_cycle_);
if (!out_scc_left && out_scc_right)
{
bdd b = bdd_exist(right, notap);
@ -1163,6 +1174,8 @@ namespace spot
if (add != bddfalse
&& bdd_exist(add, all_acceptance_conditions_) == bddtrue)
{
assert(src_right != dst_right);
constraint
.push_back(create_cstr(new_original_[old_name_[src_right]],
new_original_[old_name_[dst_right]],
@ -1177,6 +1190,8 @@ namespace spot
if (add != bddfalse
&& bdd_exist(add, all_acceptance_conditions_) == bddtrue)
{
assert(src_left != dst_left);
constraint
.push_back(create_cstr(new_original_[old_name_[src_left]],
new_original_[old_name_[dst_left]],
@ -1191,6 +1206,7 @@ namespace spot
if (add != bddfalse
&& bdd_exist(add, all_acceptance_conditions_) == bddtrue)
{
assert(src_left != dst_left && src_right != dst_right);
// FIXME: cas pas compris.
constraint
.push_back(create_cstr(new_original_[old_name_[src_left]],
@ -1220,42 +1236,69 @@ namespace spot
const state* right,
map_state_bdd& state2sig)
{
bdd pcl = previous_class_[left];
bdd pcr = previous_class_[right];
bdd sigl = state2sig[left];
bdd sigr = state2sig[right];
std::list<constraint> res;
bdd ex = all_class_var_ & on_cycle_;
bdd both = pcl & pcr;
int lc = bdd_var(pcl);
#define DEST(x) bdd_compose(bdd_existcomp(x, ex), both, lc)
// Key is destination class, value is the signature part that
// led to this destination class.
map_bdd_bdd sigl_map;
minato_isop isop(sigl);
bdd cond_acc_dest;
while ((cond_acc_dest = isop.next()) != bddfalse)
sigl_map[bdd_existcomp(cond_acc_dest, all_class_var_)]
|= cond_acc_dest;
map_bdd_bdd sigl_map;
{
minato_isop isop(sigl & on_cycle_);
bdd cond_acc_dest;
while ((cond_acc_dest = isop.next()) != bddfalse)
sigl_map[DEST(cond_acc_dest)]
|= cond_acc_dest;
}
{
minato_isop isop(sigl & !on_cycle_);
bdd cond_acc_dest;
while ((cond_acc_dest = isop.next()) != bddfalse)
sigl_map[DEST(cond_acc_dest)]
|= cond_acc_dest;
}
map_bdd_bdd sigr_map;
minato_isop isop2(sigr);
bdd cond_acc_dest2;
while ((cond_acc_dest2 = isop2.next()) != bddfalse)
sigr_map[bdd_existcomp(cond_acc_dest2, all_class_var_)]
|= cond_acc_dest2;
{
minato_isop isop2(sigr & on_cycle_);
bdd cond_acc_dest2;
while ((cond_acc_dest2 = isop2.next()) != bddfalse)
sigr_map[DEST(cond_acc_dest2)]
|= cond_acc_dest2;
}
{
minato_isop isop2(sigr & !on_cycle_);
bdd cond_acc_dest2;
while ((cond_acc_dest2 = isop2.next()) != bddfalse)
sigr_map[DEST(cond_acc_dest2)]
|= cond_acc_dest2;
}
// Iterate over the transitions of both states.
for (map_bdd_bdd::const_iterator lit = sigl_map.begin();
lit != sigl_map.end(); ++lit)
for (map_bdd_bdd::iterator rit = sigr_map.begin();
rit != sigr_map.end(); ++rit)
{
// And create constraints if any of the transitions
// is out of the SCC and the left could imply the right.
if ((is_out_scc(lit->second) || is_out_scc(rit->second))
&& could_imply(lit->second, previous_class_[left],
rit->second, previous_class_[right]))
&& (bdd_exist(lit->first, on_cycle_) ==
bdd_exist(rit->first, on_cycle_)))
{
create_simple_constraint(lit->second, rit->second,
left, right, res);
}
}
return res;
}
@ -1322,7 +1365,7 @@ namespace spot
// order_ is here for the determinism. Here we make the diff
// between the two table: imply and could_imply.
// between the two tables: imply and could_imply.
for (std::list<const state*>::const_iterator my_it = order_.begin();
my_it != order_.end();
++my_it)
@ -1338,22 +1381,23 @@ namespace spot
if (care_rel == dont_care_rel)
continue;
// If they are different: We know that dont_care_rel is
// '(care_rel | x)' and because it is a conjunction of
// variable, we can simply use bdd_exist to discover 'x'.
// If they are different we necessarily have
// dont_care_rel == care_rel & diff
bdd diff = bdd_exist(dont_care_rel, care_rel);
assert(dont_care_rel == (care_rel & diff));
assert(diff != bddtrue);
bdd a = diff;
while (a != bddtrue)
do
{
bdd cur_diff = bdd_ithvar(bdd_var(a));
bdd cur_diff = bdd_ithvar(bdd_var(diff));
cc[it->second][cur_diff]
= create_new_constraint(it->first,
class2state[cur_diff],
dont_care_state2sig);
++number_constraints;
a = bdd_high(a);
diff = bdd_high(diff);
}
while (diff != bddtrue);
}
#ifndef NDEBUG
for (map_bdd_state::const_iterator i = class2state.begin();

1
src/tgbatest/Makefile.am
View file

@ -80,6 +80,7 @@ TESTS = \
readsave.test \
simdet.test \
sim.test \
sim2.test \
ltl2tgba.test \
ltl2neverclaim.test \
ltl2neverclaim-lbtt.test \

27
src/tgbatest/sim.test
View file

@ -51,12 +51,33 @@ EOF
diff out.tgba expected.tgba
run 0 ../ltl2tgba -RDCIS -kt 'Fp U Gq' > out.tgba
cat >expected.tgba <<EOF
run 0 ../ltl2tgba -RDCIS -kt 'Fp U Gq' > out
cat >expected <<EOF
sub trans.: 12
transitions: 6
states: 3
nondeterministic states: 1
EOF
diff out.tgba expected.tgba
diff out expected
run 0 ../ltl2tgba -R3 -x -RDCS -kt 'F(a & GFa)' > out
run 0 ../ltl2tgba -R3f -x -RDCS -kt 'F(a & GFa)' > out2
diff out out2
f='FG((Fp0 & (!p0 R (F!p1 U !p1))) | (G!p0 & (p0 U (Gp1 R p1))))'
run 0 ../ltl2tgba -R3f -x -RDS -kt "$f" | grep -v sub > out
run 0 ../ltl2tgba -R3f -x -RDCS -kt "$f" | grep -v sub > out2
diff out out2
run 0 ../ltl2tgba -R3f -x -RDCS -kt "$f" > out2
cat >expected <<EOF
sub trans.: 13
transitions: 8
states: 3
nondeterministic states: 1
EOF
diff out2 expected

29
src/tgbatest/sim2.test Executable file
View file

@ -0,0 +1,29 @@
#! /bin/sh
# -*- coding: utf-8 -*-
# Copyright (C) 2013 Laboratoire de Recherche et Développement
# de l'Epita (LRDE).
#
# 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/>.
. ./defs
set -e
../ltl2tgba -b -x -R3f -RDS '{(a&b)[*3]}<>=>G(a&!b)' > ref
for i in -R3 -R3f '-R3 -RDS' '-R3f -RDS' '-R3 -RDCS' '-R3f -RDCS'; do
../ltl2tgba -Pref -E -x $i '(X!b R F!a) U (!a | G!b)'
done