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Avoid broken stack by fix_dl_var_tactic

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Kirill A. Korinsky 2024-08-26 12:25:07 +02:00
parent 749ea6c67c
commit 3656a26f18
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GPG key ID: 98D8D9867759226E
1 changed files with 5 additions and 3 deletions
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8
src/tactic/arith/fix_dl_var_tactic.cpp
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@ -35,7 +35,7 @@ class fix_dl_var_tactic : public tactic {
struct failed {};
ast_manager & m;
arith_util & m_util;
expr_fast_mark1 * m_visited;
expr_fast_mark1 * m_visited = nullptr;
ptr_vector<expr> m_todo;
obj_map<app, unsigned> m_occs;
obj_map<app, unsigned> m_non_nested_occs;
@ -214,8 +214,10 @@ class fix_dl_var_tactic : public tactic {
app * operator()(goal const & g) {
try {
expr_fast_mark1 visited;
m_visited = &visited;
if (m_visited != nullptr) {
dealloc(m_visited);
}
m_visited = alloc(expr_fast_mark1);
unsigned sz = g.size();
for (unsigned i = 0; i < sz; i++) {
process(g.form(i));