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fix value tester theory var reuse in theory_str

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fixes release regression in charAt-007
This commit is contained in:
Murphy Berzish 2016-09-22 15:40:43 -04:00
parent 4433417b6e
commit 1061cdf58a
1 changed files with 2 additions and 0 deletions
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2
src/smt/theory_str.cpp
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@ -8131,6 +8131,7 @@ expr * theory_str::gen_free_var_options(expr * freeVar, expr * len_indicator,
if (!anEqcHasValue) {
TRACE("t_str_detail", tout << "value tester " << mk_ismt2_pp(aTester, m)
<< " doesn't have an equivalence class value." << std::endl;);
refresh_theory_var(aTester);
expr * makeupAssert = gen_val_options(freeVar, len_indicator, aTester, len_valueStr, i);
@ -8147,6 +8148,7 @@ expr * theory_str::gen_free_var_options(expr * freeVar, expr * len_indicator,
expr * valTester = NULL;
if (i + 1 < testerTotal) {
valTester = fvar_valueTester_map[freeVar][len][i + 1].second;
refresh_theory_var(valTester);
} else {
valTester = mk_internal_valTest_var(freeVar, len, i + 1);
valueTester_fvar_map[valTester] = freeVar;