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#5336

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This commit is contained in:
Nikolaj Bjorner 2021-06-16 17:47:49 -05:00
parent 29a2838bc9
commit 38fc97d18c
4 changed files with 13 additions and 12 deletions
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2
src/ast/euf/euf_egraph.cpp
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@ -689,7 +689,7 @@ namespace euf {
if (ra->interpreted() && rb->interpreted()) {
explain_eq(justifications, a, ra);
explain_eq(justifications, b, rb);
return UINT_MAX;
return sat::null_bool_var;
}
expr_ref eq(m.mk_eq(a->get_expr(), b->get_expr()), m);
m_tmp_eq->m_args[0] = a;

7
src/ast/euf/euf_enode.h
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@ -19,6 +19,7 @@ Author:
#include "util/id_var_list.h"
#include "util/lbool.h"
#include "util/approx_set.h"
#include "util/sat_literal.h"
#include "ast/ast.h"
#include "ast/euf/euf_justification.h"
@ -50,7 +51,7 @@ namespace euf {
bool m_merge_enabled = true;
bool m_is_equality = false; // Does the expression represent an equality
lbool m_value = l_undef; // Assignment by SAT solver for Boolean node
unsigned m_bool_var = UINT_MAX; // SAT solver variable associated with Boolean node
sat::bool_var m_bool_var = sat::null_bool_var; // SAT solver variable associated with Boolean node
unsigned m_class_size = 1; // Size of the equivalence class if the enode is the root.
unsigned m_table_id = UINT_MAX;
unsigned m_generation = 0; // Tracks how many quantifier instantiation rounds were needed to generate this enode.
@ -135,7 +136,7 @@ namespace euf {
void set_merge_enabled(bool m) { m_merge_enabled = m; }
void set_value(lbool v) { m_value = v; }
void set_is_equality() { m_is_equality = true; }
void set_bool_var(unsigned v) { m_bool_var = v; }
void set_bool_var(sat::bool_var v) { m_bool_var = v; }
public:
~enode() {
@ -155,7 +156,7 @@ namespace euf {
bool interpreted() const { return m_interpreted; }
bool is_equality() const { return m_is_equality; }
lbool value() const { return m_value; }
unsigned bool_var() const { return m_bool_var; }
sat::bool_var bool_var() const { return m_bool_var; }
bool is_cgr() const { return this == m_cg; }
enode* get_cg() const { return m_cg; }
bool commutative() const { return m_commutative; }