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fix reference count issue with pinning to expr_ref

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Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
This commit is contained in:
Nikolaj Bjorner 2017-06-01 09:56:25 -07:00
parent e9ed3af455
commit 2908ab4069
2 changed files with 7 additions and 9 deletions
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14
src/smt/theory_str.cpp
View file

@ -6927,9 +6927,9 @@ namespace smt {
ast_manager & m = get_manager();
if (lenTester_fvar_map.contains(lenTester)) {
expr * fVar = lenTester_fvar_map[lenTester];
expr * toAssert = gen_len_val_options_for_free_var(fVar, lenTester, lenTesterValue);
expr_ref toAssert(gen_len_val_options_for_free_var(fVar, lenTester, lenTesterValue), m);
TRACE("str", tout << "asserting more length tests for free variable " << mk_ismt2_pp(fVar, m) << std::endl;);
if (toAssert != NULL) {
if (toAssert) {
assert_axiom(toAssert);
}
}
@ -9173,7 +9173,7 @@ namespace smt {
}
}
expr * theory_str::gen_val_options(expr * freeVar, expr * len_indicator, expr * val_indicator,
expr* theory_str::gen_val_options(expr * freeVar, expr * len_indicator, expr * val_indicator,
zstring lenStr, int tries) {
ast_manager & m = get_manager();
context & ctx = get_context();
@ -9288,8 +9288,7 @@ namespace smt {
}
expr_ref assertL = mk_and(andList);
// (assertL => valTestAssert) <=> (!assertL OR valTestAssert)
valTestAssert = m.mk_or(m.mk_not(assertL), valTestAssert);
return valTestAssert;
return m.mk_or(m.mk_not(assertL), valTestAssert);
}
expr * theory_str::gen_free_var_options(expr * freeVar, expr * len_indicator,
@ -9354,7 +9353,7 @@ namespace smt {
<< " 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);
expr_ref makeupAssert(gen_val_options(freeVar, len_indicator, aTester, len_valueStr, i), m);
TRACE("str", tout << "var: " << mk_ismt2_pp(freeVar, m) << std::endl
<< mk_ismt2_pp(makeupAssert, m) << std::endl;);
@ -9376,8 +9375,7 @@ namespace smt {
fvar_valueTester_map[freeVar][len].push_back(std::make_pair(sLevel, valTester));
print_value_tester_list(fvar_valueTester_map[freeVar][len]);
}
expr * nextAssert = gen_val_options(freeVar, len_indicator, valTester, len_valueStr, i + 1);
return nextAssert;
return gen_val_options(freeVar, len_indicator, valTester, len_valueStr, i + 1);
}
return NULL;

2
src/smt/theory_str.h
View file

@ -553,7 +553,7 @@ protected:
expr * gen_len_test_options(expr * freeVar, expr * indicator, int tries);
expr * gen_free_var_options(expr * freeVar, expr * len_indicator,
zstring len_valueStr, expr * valTesterInCbEq, zstring valTesterValueStr);
expr * gen_val_options(expr * freeVar, expr * len_indicator, expr * val_indicator,
expr* gen_val_options(expr * freeVar, expr * len_indicator, expr * val_indicator,
zstring lenStr, int tries);
void print_value_tester_list(svector<std::pair<int, expr*> > & testerList);
bool get_next_val_encode(int_vector & base, int_vector & next);