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Fix computation of product acceptance conditions, when the

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two operands share some acceptance conditions.
* src/tgba/tgbaproduct.hh (tgba_product::left_acc_complement_,
tgba_product::right_acc_complement_): New attribute.
* src/tgba/tgbaproduct.cc (tgba_product::tgba_product): Set them.
(tgba_product::succ_iter): Use them.
* src/tgba/explpro2.test: New file.
* src/tgba/Makefile.am (TESTS): Add it.
This commit is contained in:
Alexandre Duret-Lutz 2003-08-22 10:07:02 +00:00
parent 8a44ed08ae
commit 7db71d9afe
5 changed files with 61 additions and 8 deletions
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11
ChangeLog
View file

@ -1,3 +1,14 @@
2003-08-22 Alexandre Duret-Lutz <aduret@src.lip6.fr>
Fix computation of product acceptance conditions, when the
two operands share some acceptance conditions.
* src/tgba/tgbaproduct.hh (tgba_product::left_acc_complement_,
tgba_product::right_acc_complement_): New attribute.
* src/tgba/tgbaproduct.cc (tgba_product::tgba_product): Set them.
(tgba_product::succ_iter): Use them.
* src/tgba/explpro2.test: New file.
* src/tgba/Makefile.am (TESTS): Add it.
2003-08-20 Alexandre Duret-Lutz <aduret@src.lip6.fr>
* tgba/tgbaproduct.cc, tgba/tgbaproduct.hh:

17
src/tgba/tgbaproduct.cc
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@ -148,12 +148,17 @@ namespace spot
{
assert(dict_ == right->get_dict());
bdd lna = left_->neg_accepting_conditions();
bdd rna = right_->neg_accepting_conditions();
left_acc_complement_ = bdd_exist(lna, bdd_support(rna));
right_acc_complement_ = bdd_exist(rna, bdd_support(lna));
all_accepting_conditions_ = ((left_->all_accepting_conditions()
& right_->neg_accepting_conditions())
& left_acc_complement_)
| (right_->all_accepting_conditions()
& left_->neg_accepting_conditions()));
neg_accepting_conditions_ = (left_->neg_accepting_conditions()
& right_->neg_accepting_conditions());
& right_acc_complement_));
neg_accepting_conditions_ = lna & rna;
dict_->register_all_variables_of(&left_, this);
dict_->register_all_variables_of(&right_, this);
}
@ -192,8 +197,8 @@ namespace spot
tgba_succ_iterator* ri = right_->succ_iter(s->right(),
global_state, global_automaton);
return new tgba_succ_iterator_product(li, ri,
left_->neg_accepting_conditions(),
right_->neg_accepting_conditions());
left_acc_complement_,
right_acc_complement_);
}
bdd

2
src/tgba/tgbaproduct.hh
View file

@ -122,6 +122,8 @@ namespace spot
bdd_dict* dict_;
const tgba* left_;
const tgba* right_;
bdd left_acc_complement_;
bdd right_acc_complement_;
bdd all_accepting_conditions_;
bdd neg_accepting_conditions_;
// Disallow copy.

5
src/tgbatest/Makefile.am
View file

@ -38,10 +38,11 @@ TESTS = \
ltlprod.test \
bddprod.test \
explprod.test \
explpro2.test \
tripprod.test \
mixprod.test \
spotlbtt.test \
ltlmagic.test
ltlmagic.test \
spotlbtt.test
EXTRA_DIST = $(TESTS)

34
src/tgbatest/explpro2.test Executable file
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@ -0,0 +1,34 @@
#!/bin/sh
. ./defs
set -e
cat >input1 <<EOF
acc = p1 p2;
s1, s2, !a, p1;
s1, s3, !b, p2;
EOF
cat >input2 <<EOF
acc = p2 p3;
s1, s2, b, p2;
s1, s3, a, p3;
EOF
cat >expected <<EOF
acc = "p1" "p2" "p3";
"s1 * s1", "s2 * s2", ! a b, "p1" "p2";
"s1 * s1", "s3 * s3", a ! b, "p2" "p3";
EOF
./explprod input1 input2 > stdout
# Sort out some possible inversions in the output.
# (The order is not guaranteed by SPOT.)
sed 's/c a/a c/g;s/b a/a b/g;s/"p3" "p2"/"p2" "p3"/g;s/"p2" "p1"/"p1" "p2"/g' stdout > tmp_ &&
mv tmp_ stdout
cat stdout
diff stdout expected
rm input1 input2 stdout expected