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fix #2262

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Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
This commit is contained in:
Nikolaj Bjorner 2019-04-30 19:04:02 -07:00
parent bd46c52f95
commit 606754c09a
3 changed files with 37 additions and 51 deletions
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16
src/math/automata/symbolic_automata_def.h
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@ -379,9 +379,21 @@ typename symbolic_automata<T, M>::automaton_t* symbolic_automata<T, M>::mk_produ
pair2id.insert(init_pair, 0);
moves_t mvs;
unsigned_vector final;
if (a.is_final_state(a.init()) && b.is_final_state(b.init())) {
final.push_back(0);
unsigned_vector a_init, b_init;
a.get_epsilon_closure(a.init(), a_init);
for (unsigned ia : a_init) {
if (a.is_final_state(ia)) {
b.get_epsilon_closure(b.init(), b_init);
for (unsigned ib : b_init) {
if (b.is_final_state(ib)) {
final.push_back(0);
break;
}
}
break;
}
}
unsigned n = 1;
moves_t mvsA, mvsB;
while (!todo.empty()) {