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fix bug in activate node!

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Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
This commit is contained in:
Nikolaj Bjorner 2025-09-08 19:14:25 -07:00
parent 96bb3caa9e
commit e916065f7c
1 changed files with 10 additions and 9 deletions
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19
src/util/search_tree.h
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@ -221,28 +221,29 @@ namespace search_tree {
auto res = activate_from_root(n); auto res = activate_from_root(n);
if (res) if (res)
return res; return res;
while (n) {
if (n->left() && n->left()->get_status() == status::closed && auto p = n->parent();
n->right() && n->right()->get_status() == status::closed) { while (p) {
n->set_status(status::closed); if (p->left() && p->left()->get_status() == status::closed &&
n = n->parent(); p->right() && p->right()->get_status() == status::closed) {
p->set_status(status::closed);
n = p;
p = n->parent();
continue; continue;
} }
auto p = n->parent();
if (!p)
return nullptr;
if (n == p->left()) { if (n == p->left()) {
res = activate_from_root(p->right()); res = activate_from_root(p->right());
if (res) if (res)
return res; return res;
} }
else { else {
SASSERT(n == p->right()); VERIFY(n == p->right());
res = activate_from_root(p->left()); res = activate_from_root(p->left());
if (res) if (res)
return res; return res;
} }
n = p; n = p;
p = n->parent();
} }
return nullptr; return nullptr;
} }