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fix backtracking of m_needs_congruence

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Jakob Rath 2023-07-18 16:00:26 +02:00
parent a96df2292e
commit 28ed3bd7ab
3 changed files with 32 additions and 6 deletions
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src/ast/euf/euf_egraph.h
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@ -245,7 +245,7 @@ namespace euf {
enode* find(expr* f, unsigned n, enode* const* args);
enode* mk(expr* f, unsigned generation, unsigned n, enode *const* args);
enode_vector const& enodes_of(func_decl* f);
void push() { if (!m_to_merge.empty()) propagate(); ++m_num_scopes; }
void push() { if (can_propagate()) propagate(); ++m_num_scopes; }
void pop(unsigned num_scopes);
/**
@ -254,6 +254,7 @@ namespace euf {
void merge(enode* n1, enode* n2, void* reason) { merge(n1, n2, justification::external(reason)); }
void new_diseq(enode* n);
bool can_propagate() const { return !m_to_merge.empty(); }
/**
\brief propagate set of merges.