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work on nra to nla

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Signed-off-by: Lev Nachmanson <levnach@hotmail.com>
This commit is contained in:
Lev Nachmanson 2020-05-11 15:45:01 -07:00
parent 8c92cf1b32
commit 4b68d98b2a
1 changed files with 16 additions and 6 deletions
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22
src/smt/theory_lra.cpp
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@ -125,6 +125,7 @@ struct stats {
unsigned m_gomory_cuts;
unsigned m_nla_explanations;
unsigned m_nla_lemmas;
unsigned m_nra_calls;
unsigned m_assume_eqs;
unsigned m_branch;
stats() { reset(); }
@ -284,11 +285,16 @@ class theory_lra::imp {
return m_th.is_eq(v1, v2);
}
};
bool use_nra_model() const {
return m_nla && m_nla->use_nra_model();
}
struct var_value_hash {
imp & m_th;
var_value_hash(imp & th):m_th(th) {}
unsigned operator()(theory_var v) const {
if (m_th.m_nla->use_nra_model()) {
if (m_th.use_nra_model()) {
return m_th.is_int(v);
}
else {
@ -1669,7 +1675,7 @@ public:
}
bool is_eq(theory_var v1, theory_var v2) {
if (m_nla->use_nra_model()) {
if (use_nra_model()) {
return m_nla->am().eq(nl_value(v1, *m_a1), nl_value(v2, *m_a2));
}
else {
@ -2151,8 +2157,11 @@ public:
auto & lv = m_nla_lemma_vector;
m_explanation.clear();
lbool r = m_nla->check(lv, m_explanation);
if (use_nra_model())
m_stats.m_nra_calls ++;
if (m_explanation.size()) {
SASSERT(m_nla->use_nra_model());
SASSERT(use_nra_model());
SASSERT(r == l_false);
set_conflict();
return l_false;
@ -2168,7 +2177,7 @@ public:
break;
}
case l_true:
if (m_nla->use_nra_model()) {
if (use_nra_model()) {
m_a1 = alloc(scoped_anum, m_nla->am());
m_a2 = alloc(scoped_anum, m_nla->am());
}
@ -3344,7 +3353,7 @@ public:
}
nlsat::anum const& nl_value(theory_var v, scoped_anum& r) {
SASSERT(m_nla->use_nra_model());
SASSERT(use_nra_model());
auto t = get_tv(v);
if (t.is_term()) {
@ -3387,7 +3396,7 @@ public:
model_value_proc * mk_value(enode * n, model_generator & mg) {
theory_var v = n->get_th_var(get_id());
expr* o = n->get_owner();
if (m_nla->use_nra_model()) {
if (use_nra_model()) {
anum const& an = nl_value(v, *m_a1);
if (a.is_int(o) && !m_nla->am().is_int(an)) {
return alloc(expr_wrapper_proc, a.mk_numeral(rational::zero(), a.is_int(o)));
@ -3857,6 +3866,7 @@ public:
st.update("arith-grobner-conflicts", lp().settings().stats().m_grobner_conflicts);
st.update("arith-nla-explanations", m_stats.m_nla_explanations);
st.update("arith-nla-lemmas", m_stats.m_nla_lemmas);
st.update("arith-nra-calls", m_stats.m_nra_calls);
st.update("arith-gomory-cuts", m_stats.m_gomory_cuts);
st.update("arith-assume-eqs", m_stats.m_assume_eqs);
st.update("arith-branch", m_stats.m_branch);