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simplify extended contains patterns

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Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
This commit is contained in:
Nikolaj Bjorner 2020-05-28 19:11:29 -07:00
parent 6a90072a98
commit ea1f50b77e
8 changed files with 163 additions and 6 deletions
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8
src/smt/theory_str.cpp
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@ -1803,7 +1803,7 @@ namespace smt {
// axiom 2: expr = 0 <==> S in "0+"
// axiom 3: expr >= 1 ==> S in "0*[1-9][0-9]*"
expr * S = ex->get_arg(0);
// expr * S = ex->get_arg(0);
{
expr_ref axiom1(m_autil.mk_ge(ex, m_autil.mk_numeral(rational::minus_one(), true)), m);
SASSERT(axiom1);
@ -8676,9 +8676,9 @@ namespace smt {
bool regexOK = true;
if (!regex_terms.empty()) {
for (auto& str_in_re : regex_terms) {
expr * str;
expr * re;
u.str.is_in_re(str_in_re, str, re);
expr * str = nullptr;
expr * re = nullptr;
VERIFY(u.str.is_in_re(str_in_re, str, re));
lbool current_assignment = ctx.get_assignment(str_in_re);
if (current_assignment == l_undef) {
continue;