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fix #4825 #4824

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This commit is contained in:
Nikolaj Bjorner 2020-11-27 13:39:33 -08:00
parent 1619311ff7
commit 6771e44d93
1 changed files with 7 additions and 2 deletions
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9
src/smt/theory_bv.cpp
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@ -277,6 +277,7 @@ namespace smt {
}
else {
theory_id th_id = ctx.get_var_theory(l.var());
TRACE("init_bits", tout << l << " " << th_id << "\n";);
if (th_id == get_id()) {
atom * a = get_bv2a(l.var());
SASSERT(a && a->is_bit());
@ -318,7 +319,7 @@ namespace smt {
for (unsigned i = 0; i < sz; i++) {
expr * bit = bits.get(i);
literal l = ctx.get_literal(bit);
TRACE("init_bits", tout << "bit " << i << " of #" << n->get_owner_id() << "\n" << mk_ll_pp(bit, m) << "\n";);
TRACE("init_bits", tout << "bit " << i << " of #" << n->get_owner_id() << "\n" << mk_bounded_pp(bit, m) << "\n";);
add_bit(v, l);
}
find_wpos(v);
@ -1476,7 +1477,11 @@ namespace smt {
lbool val1 = ctx.get_assignment(bit1);
lbool val2 = ctx.get_assignment(bit2);
TRACE("bv", tout << "merge v" << v1 << " " << bit1 << ":= " << val1 << " " << bit2 << ":= " << val2 << "\n";);
if (val1 == val2)
if (!ctx.is_relevant(bit1))
ctx.mark_as_relevant(bit1);
if (!ctx.is_relevant(bit2))
ctx.mark_as_relevant(bit2);
if (val1 == val2)
continue;
changed = true;
if (val1 != l_undef && val2 != l_undef) {