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remove set cardinality operators from array theory. Make final-check use priority levels

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Issue #7502 shows that running nlsat eagerly during final check can block quantifier instantiation.
To give space for quantifier instances we introduce two levels for final check such that nlsat is only applied in the second and final level.
This commit is contained in:
Nikolaj Bjorner 2025-11-26 15:35:19 -08:00
parent 7b9eb2a92f
commit e4697fe18e
59 changed files with 94 additions and 843 deletions
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7
src/sat/smt/arith_solver.cpp
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@ -1000,6 +1000,7 @@ namespace arith {
}
sat::check_result solver::check() {
unsigned level = 2;
force_push();
m_model_is_initialized = false;
IF_VERBOSE(12, verbose_stream() << "final-check " << lp().get_status() << "\n");
@ -1042,7 +1043,7 @@ namespace arith {
if (!check_delayed_eqs())
return sat::check_result::CR_CONTINUE;
switch (check_nla()) {
switch (check_nla(level)) {
case l_true:
m_use_nra_model = true;
break;
@ -1498,7 +1499,7 @@ namespace arith {
}
lbool solver::check_nla() {
lbool solver::check_nla(unsigned level) {
if (!m.inc()) {
TRACE(arith, tout << "canceled\n";);
return l_undef;
@ -1509,7 +1510,7 @@ namespace arith {
if (!m_nla->need_check())
return l_true;
lbool r = m_nla->check();
lbool r = m_nla->check(level);
switch (r) {
case l_false:
add_lemmas();