void mk_safe(expr_ref_vector& conjs) {
datalog::flatten_and(conjs);
for (unsigned i = 0; i < conjs.size(); ++i) {
expr * atom = conjs[i].get();
bool negated = m.is_not(atom, atom); //remove negation
SASSERT(!m.is_true(atom));
if (!is_uninterp(atom) || to_app(atom)->get_num_args() != 0) {
app * name = mk_fresh(atom);
conjs[i] = negated?m.mk_not(name):name;
}
}
}
void init_bcd() {
m_trail.reset();
m_asm_set.reset();
m_cores.reset();
m_sigmas.reset();
m_lazy_soft.reset();
for (unsigned i = 0; i < m_soft.size(); ++i) {
m_sigmas.push_back(m_weights[i]);
m_soft_aux.push_back(mk_fresh());
if (m_enable_lazy) {
m_lazy_soft.push_back(i);
}
else {
enable_soft_constraint(i);
}
}
m_upper += rational(1);
}
