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working on cardinality tactic

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Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
This commit is contained in:
Nikolaj Bjorner 2013-11-06 12:40:56 -08:00
parent 2f04918c39
commit 05b37b2f07
1 changed files with 7 additions and 6 deletions
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13
src/smt/theory_card.cpp
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@ -55,21 +55,21 @@ namespace smt {
TRACE("card", tout << "internalize: " << mk_pp(atom, m) << "\n";); TRACE("card", tout << "internalize: " << mk_pp(atom, m) << "\n";);
SASSERT(!ctx.b_internalized(atom)); SASSERT(!ctx.b_internalized(atom));
bool_var bv = ctx.mk_bool_var(atom); bool_var abv = ctx.mk_bool_var(atom);
if (k >= atom->get_num_args()) { if (k >= atom->get_num_args()) {
literal lit(bv); literal lit(abv);
ctx.mk_th_axiom(get_id(), 1, &lit); ctx.mk_th_axiom(get_id(), 1, &lit);
return true; return true;
} }
card* c = alloc(card, bv, k); card* c = alloc(card, abv, k);
for (unsigned i = 0; i < num_args; ++i) { for (unsigned i = 0; i < num_args; ++i) {
expr* arg = atom->get_arg(i); expr* arg = atom->get_arg(i);
if (!ctx.b_internalized(arg)) { if (!ctx.b_internalized(arg)) {
ctx.internalize(arg, false); ctx.internalize(arg, false);
} }
bool_var bv;
bool has_bv = false; bool has_bv = false;
if (!m.is_not(arg) && ctx.b_internalized(arg)) { if (!m.is_not(arg) && ctx.b_internalized(arg)) {
bv = ctx.get_bool_var(arg); bv = ctx.get_bool_var(arg);
@ -108,12 +108,13 @@ namespace smt {
else { else {
// bv <=> (and (not bv1) ... (not bv_n)) // bv <=> (and (not bv1) ... (not bv_n))
literal_vector& lits = get_lits(); literal_vector& lits = get_lits();
lits.push_back(literal(bv)); lits.push_back(literal(abv));
for (unsigned i = 0; i < c->m_args.size(); ++i) { for (unsigned i = 0; i < c->m_args.size(); ++i) {
ctx.mk_th_axiom(get_id(), ~literal(bv), ~literal(c->m_args[i])); ctx.mk_th_axiom(get_id(), ~literal(abv), ~literal(c->m_args[i]));
lits.push_back(literal(c->m_args[i])); lits.push_back(literal(c->m_args[i]));
} }
ctx.mk_th_axiom(get_id(), lits.size(), lits.c_ptr()); ctx.mk_th_axiom(get_id(), lits.size(), lits.c_ptr());
dealloc(c);
} }
return true; return true;
} }