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fix missing equality propagation in new bv solver

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This commit is contained in:
Nikolaj Bjorner 2020-11-16 16:22:56 -08:00
parent 36e40a296f
commit f6f594e21d
5 changed files with 35 additions and 13 deletions
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8
src/sat/smt/bv_internalize.cpp
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@ -290,6 +290,10 @@ namespace bv {
TRACE("bv", tout << "add-bit: v" << v << "[" << idx << "] " << l << " " << literal2expr(l) << "@" << s().scope_lvl() << "\n";);
SASSERT(m_num_scopes == 0);
s().set_external(l.var());
euf::enode* n = bool_var2enode(l.var());
if (!n->is_attached_to(get_id()))
mk_var(n);
set_bit_eh(v, l, idx);
}
@ -307,7 +311,7 @@ namespace bv {
SASSERT(m_bits[v][idx] == l);
if (s().value(l) != l_undef && s().lvl(l) == 0)
register_true_false_bit(v, idx);
else if (m_bits[v].size() > 1) {
else {
atom* b = mk_atom(l.var());
if (b->m_occs)
find_new_diseq_axioms(*b, v, idx);
@ -613,7 +617,7 @@ namespace bv {
SASSERT(hi - lo + 1 == get_bv_size(v));
SASSERT(lo <= hi && hi < get_bv_size(arg_v));
m_bits[v].reset();
for (unsigned i = lo; i <= hi; ++i)
for (unsigned i = lo; i <= hi; ++i)
add_bit(v, m_bits[arg_v][i]);
find_wpos(v);
}