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#5422

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This commit is contained in:
Nikolaj Bjorner 2021-07-21 09:08:55 -07:00
parent 005d35f9c9
commit 644bd82ac7
3 changed files with 17 additions and 6 deletions
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10
src/ast/euf/euf_egraph.cpp
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@ -417,6 +417,16 @@ namespace euf {
std::swap(r1, r2);
std::swap(n1, n2);
}
if (m.is_false(r2->get_expr()) && r1->value() == l_true) {
std::cout << "value assign conflict\n";
set_conflict(n1, n2, j);
return;
}
if (m.is_true(r2->get_expr()) && r1->value() == l_false) {
std::cout << "value assign conflict\n";
set_conflict(n1, n2, j);
return;
}
if (j.is_congruence() && (m.is_false(r2->get_expr()) || m.is_true(r2->get_expr())))
add_literal(n1, false);
if (n1->is_equality() && n1->value() == l_false)

9
src/sat/smt/array_model.cpp
View file

@ -27,7 +27,7 @@ namespace array {
dep.insert(n, nullptr);
return true;
}
for (euf::enode* p : euf::enode_parents(n)) {
for (euf::enode* p : euf::enode_parents(n->get_root())) {
if (a.is_default(p->get_expr())) {
dep.add(n, p);
continue;
@ -51,6 +51,7 @@ namespace array {
SASSERT(a.is_array(n->get_expr()));
ptr_vector<expr> args;
sort* srt = n->get_sort();
n = n->get_root();
unsigned arity = get_array_arity(srt);
func_decl * f = mk_aux_decl_for_array_sort(m, srt);
func_interp * fi = alloc(func_interp, m, arity);
@ -70,7 +71,7 @@ namespace array {
expr* else_value = nullptr;
unsigned max_occ_num = 0;
obj_map<expr, unsigned> num_occ;
for (euf::enode* p : euf::enode_parents(n)) {
for (euf::enode* p : euf::enode_parents(n->get_root())) {
if (a.is_select(p->get_expr()) && p->get_arg(0)->get_root() == n->get_root()) {
expr* v = values.get(p->get_root_id());
if (!v)
@ -90,7 +91,7 @@ namespace array {
}
for (euf::enode* p : euf::enode_parents(n)) {
if (a.is_select(p->get_expr()) && p->get_arg(0)->get_root() == n->get_root()) {
if (a.is_select(p->get_expr()) && p->get_arg(0)->get_root() == n) {
expr* value = values.get(p->get_root_id());
if (!value || value == fi->get_else())
continue;
@ -102,7 +103,7 @@ namespace array {
}
parameter p(f);
values.set(n->get_root_id(), m.mk_app(get_id(), OP_AS_ARRAY, 1, &p));
values.set(n->get_expr_id(), m.mk_app(get_id(), OP_AS_ARRAY, 1, &p));
}