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fix more bugs with compilation of pb equalities

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Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
This commit is contained in:
Nikolaj Bjorner 2018-02-04 09:51:45 -08:00
parent 354c16454a
commit 20fe08d80c
3 changed files with 11 additions and 25 deletions
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2
src/sat/ba_solver.cpp
View file

@ -1571,7 +1571,7 @@ namespace sat {
m_constraints.push_back(c);
}
literal lit = c->lit();
if (c->learned() && !s().at_base_lvl()) {
if (c->learned() && m_solver && !s().at_base_lvl()) {
SASSERT(lit == null_literal);
// gets initialized after backjump.
m_constraint_to_reinit.push_back(c);

17
src/sat/tactic/goal2sat.cpp
View file

@ -495,8 +495,8 @@ struct goal2sat::imp {
SASSERT(k.is_unsigned());
svector<wliteral> wlits;
convert_pb_args(t, wlits);
sat::bool_var v1 = root ? sat::null_bool_var : m_solver.mk_var(true);
sat::bool_var v2 = root ? sat::null_bool_var : m_solver.mk_var(true);
sat::bool_var v1 = (root && !sign) ? sat::null_bool_var : m_solver.mk_var(true);
sat::bool_var v2 = (root && !sign) ? sat::null_bool_var : m_solver.mk_var(true);
m_ext->add_pb_ge(v1, wlits, k.get_unsigned());
k.neg();
for (wliteral& wl : wlits) {
@ -505,7 +505,7 @@ struct goal2sat::imp {
}
check_unsigned(k);
m_ext->add_pb_ge(v2, wlits, k.get_unsigned());
if (root) {
if (root && !sign) {
m_result_stack.reset();
}
else {
@ -516,7 +516,8 @@ struct goal2sat::imp {
mk_clause(~l, l2);
mk_clause(~l1, ~l2, l);
m_result_stack.shrink(m_result_stack.size() - t->get_num_args());
m_result_stack.push_back(l);
m_result_stack.push_back(sign ? ~l : l);
if (root) mk_clause(~l);
}
}
@ -564,8 +565,8 @@ struct goal2sat::imp {
SASSERT(k.is_unsigned());
sat::literal_vector lits;
convert_pb_args(t->get_num_args(), lits);
sat::bool_var v1 = root ? sat::null_bool_var : m_solver.mk_var(true);
sat::bool_var v2 = root ? sat::null_bool_var : m_solver.mk_var(true);
sat::bool_var v1 = (root && !sign) ? sat::null_bool_var : m_solver.mk_var(true);
sat::bool_var v2 = (root && !sign) ? sat::null_bool_var : m_solver.mk_var(true);
m_ext->add_at_least(v1, lits, k.get_unsigned());
for (sat::literal& l : lits) {
l.neg();
@ -573,7 +574,7 @@ struct goal2sat::imp {
m_ext->add_at_least(v2, lits, lits.size() - k.get_unsigned());
if (root) {
if (root && !sign) {
m_result_stack.reset();
}
else {
@ -585,7 +586,7 @@ struct goal2sat::imp {
mk_clause(~l1, ~l2, l);
m_result_stack.shrink(m_result_stack.size() - t->get_num_args());
m_result_stack.push_back(sign ? ~l : l);
if (root) mk_clause(~l);
}
}