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user propagator

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Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
This commit is contained in:
Nikolaj Bjorner 2020-08-20 10:39:20 -07:00
parent ba4a218fc0
commit eef05e00af
3 changed files with 14 additions and 11 deletions
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9
src/smt/theory_bv.cpp
View file

@ -468,7 +468,14 @@ namespace smt {
enode* n = get_enode(v);
if (ctx.watches_fixed(n)) {
expr_ref num(m_util.mk_numeral(val, m.get_sort(n->get_owner())), m);
ctx.assign_fixed(n, num, m_bits[v]);
literal_vector& lits = m_tmp_literals;
lits.reset();
for (literal b : m_bits[v]) {
if (ctx.get_assignment(b) == l_false)
b.neg();
lits.push_back(b);
}
ctx.assign_fixed(n, num, lits);
}
unsigned sz = get_bv_size(v);
value_sort_pair key(val, sz);

15
src/smt/user_propagator.cpp
View file

@ -92,29 +92,24 @@ void user_propagator::propagate() {
return;
force_push();
unsigned qhead = m_qhead;
literal_vector lits;
enode_pair_vector eqs;
justification* js;
while (qhead < m_prop.size() && !ctx.inconsistent()) {
auto const& prop = m_prop[qhead];
lits.reset();
for (unsigned id : prop.m_ids)
for (literal lit : m_id2justification[id]) {
if (ctx.get_assignment(lit) == l_false)
lit.neg();
lits.push_back(lit);
}
m_lits.reset();
for (unsigned id : prop.m_ids)
m_lits.append(m_id2justification[id]);
if (m.is_false(prop.m_conseq)) {
js = ctx.mk_justification(
ext_theory_conflict_justification(
get_id(), ctx.get_region(), lits.size(), lits.c_ptr(), eqs.size(), eqs.c_ptr(), 0, nullptr));
get_id(), ctx.get_region(), m_lits.size(), m_lits.c_ptr(), eqs.size(), eqs.c_ptr(), 0, nullptr));
ctx.set_conflict(js);
}
else {
literal lit = mk_literal(prop.m_conseq);
js = ctx.mk_justification(
ext_theory_propagation_justification(
get_id(), ctx.get_region(), lits.size(), lits.c_ptr(), eqs.size(), eqs.c_ptr(), lit));
get_id(), ctx.get_region(), m_lits.size(), m_lits.c_ptr(), eqs.size(), eqs.c_ptr(), lit));
ctx.assign(lit, js);
}
++qhead;

1
src/smt/user_propagator.h
View file

@ -46,6 +46,7 @@ namespace smt {
unsigned_vector m_prop_lim;
vector<literal_vector> m_id2justification;
unsigned m_num_scopes;
literal_vector m_lits;
void force_push();