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mb-skolem for arithmetic with model repair

Browse source 
The contract is that users of mb-skolem ensure that
interface equalities are preserved (by adding a
sufficient set of disequalities, such as a chain
x1 < x2 < x3 .., to force that solutions for
x_i does not clash).

Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
This commit is contained in:
Nikolaj Bjorner 2018-06-14 17:13:10 -07:00 • committed by Arie Gurfinkel
parent a0af3383db
commit baa96909cc
5 changed files with 34 additions and 13 deletions
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8
src/model/model_core.cpp
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@ -47,8 +47,8 @@ bool model_core::eval(func_decl* f, expr_ref & r) const {
void model_core::register_decl(func_decl * d, expr * v) {
SASSERT(d->get_arity() == 0);
decl2expr::obj_map_entry * entry = m_interp.insert_if_not_there2(d, 0);
if (entry->get_data().m_value == 0) {
decl2expr::obj_map_entry * entry = m_interp.insert_if_not_there2(d, nullptr);
if (entry->get_data().m_value == nullptr) {
// new entry
m_decls.push_back(d);
m_const_decls.push_back(d);
@ -67,8 +67,8 @@ void model_core::register_decl(func_decl * d, expr * v) {
void model_core::register_decl(func_decl * d, func_interp * fi) {
SASSERT(d->get_arity() > 0);
SASSERT(&fi->m() == &m_manager);
decl2finterp::obj_map_entry * entry = m_finterp.insert_if_not_there2(d, 0);
if (entry->get_data().m_value == 0) {
decl2finterp::obj_map_entry * entry = m_finterp.insert_if_not_there2(d, nullptr);
if (entry->get_data().m_value == nullptr) {
// new entry
m_decls.push_back(d);
m_func_decls.push_back(d);