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add some notes to regex

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Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
This commit is contained in:
Nikolaj Bjorner 2020-05-26 13:22:57 -07:00
parent 9336e823ed
commit 5e79eb62fd
6 changed files with 78 additions and 55 deletions
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21
src/smt/theory_seq.cpp
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@ -2917,14 +2917,21 @@ literal theory_seq::mk_eq_empty(expr* _e, bool phase) {
void theory_seq::add_axiom(literal l1, literal l2, literal l3, literal l4, literal l5) {
literal_vector lits;
if (l1 == true_literal || l2 == true_literal || l3 == true_literal || l4 == true_literal || l5 == true_literal) return;
if (l1 != null_literal && l1 != false_literal) { ctx.mark_as_relevant(l1); lits.push_back(l1); }
if (l2 != null_literal && l2 != false_literal) { ctx.mark_as_relevant(l2); lits.push_back(l2); }
if (l3 != null_literal && l3 != false_literal) { ctx.mark_as_relevant(l3); lits.push_back(l3); }
if (l4 != null_literal && l4 != false_literal) { ctx.mark_as_relevant(l4); lits.push_back(l4); }
if (l5 != null_literal && l5 != false_literal) { ctx.mark_as_relevant(l5); lits.push_back(l5); }
if (l1 == true_literal || l2 == true_literal || l3 == true_literal ||
l4 == true_literal || l5 == true_literal) return;
if (l1 != null_literal && l1 != false_literal) lits.push_back(l1);
if (l2 != null_literal && l2 != false_literal) lits.push_back(l2);
if (l3 != null_literal && l3 != false_literal) lits.push_back(l3);
if (l4 != null_literal && l4 != false_literal) lits.push_back(l4);
if (l5 != null_literal && l5 != false_literal) lits.push_back(l5);
add_axiom(lits);
}
void theory_seq::add_axiom(literal_vector & lits) {
TRACE("seq", ctx.display_literals_verbose(tout << "assert:", lits) << "\n";);
for (literal lit : lits)
ctx.mark_as_relevant(lit);
IF_VERBOSE(10, verbose_stream() << "ax ";
for (literal l : lits) ctx.display_literal_smt2(verbose_stream() << " ", l);
verbose_stream() << "\n");