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throttle ackerman on arrays

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This commit is contained in:
Nikolaj Bjorner 2022-01-01 15:33:33 -08:00
parent a20b577b2f
commit 84f514a4f4
8 changed files with 54 additions and 6 deletions
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30
src/sat/smt/euf_ackerman.cpp
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@ -99,14 +99,38 @@ namespace euf {
m_tmp_inference->init(m_tmp_inference);
}
bool ackerman::enable_cc(app* a, app* b) {
if (!s.enable_ackerman_axioms(a))
return false;
if (!s.enable_ackerman_axioms(b))
return false;
for (expr* arg : *a)
if (!s.enable_ackerman_axioms(arg))
return false;
for (expr* arg : *b)
if (!s.enable_ackerman_axioms(arg))
return false;
return true;
}
bool ackerman::enable_eq(expr* a, expr* b, expr* c) {
return s.enable_ackerman_axioms(a) &&
s.enable_ackerman_axioms(b) &&
s.enable_ackerman_axioms(c);
}
void ackerman::cg_conflict_eh(expr * n1, expr * n2) {
if (!is_app(n1) || !is_app(n2))
return;
if (!s.enable_ackerman_axioms(n1))
return;
SASSERT(!s.m_drating);
app* a = to_app(n1);
app* b = to_app(n2);
if (a->get_decl() != b->get_decl() || a->get_num_args() != b->get_num_args())
return;
if (!enable_cc(a, b))
return;
TRACE("ack", tout << "conflict eh: " << mk_pp(a, m) << " == " << mk_pp(b, m) << "\n";);
insert(a, b);
gc();
@ -117,6 +141,8 @@ namespace euf {
return;
if (s.m_drating)
return;
if (!enable_eq(a, b, c))
return;
TRACE("ack", tout << mk_pp(a, m) << " " << mk_pp(b, m) << " " << mk_pp(c, m) << "\n";);
insert(a, b, c);
gc();
@ -128,6 +154,8 @@ namespace euf {
TRACE("ack", tout << "used cc: " << mk_pp(a, m) << " == " << mk_pp(b, m) << "\n";);
SASSERT(a->get_decl() == b->get_decl());
SASSERT(a->get_num_args() == b->get_num_args());
if (!enable_cc(a, b))
return;
insert(a, b);
gc();
}
@ -173,7 +201,7 @@ namespace euf {
app* b = to_app(_b);
TRACE("ack", tout << mk_pp(a, m) << " " << mk_pp(b, m) << "\n";);
sat::literal_vector lits;
unsigned sz = a->get_num_args();
unsigned sz = a->get_num_args();
for (unsigned i = 0; i < sz; ++i) {
expr_ref eq = s.mk_eq(a->get_arg(i), b->get_arg(i));