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fix #6675

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disable remove_unused_defs from pb-solver until it is integrated with model reconstruction.
This commit is contained in:
Nikolaj Bjorner 2023-04-12 19:50:01 -07:00
parent e8222433c3
commit eba0732629
3 changed files with 16 additions and 10 deletions
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15
src/ast/rewriter/pb2bv_rewriter.cpp
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@ -825,16 +825,17 @@ struct pb2bv_rewriter::imp {
if (a->get_family_id() == au.get_family_id()) {
switch (a->get_decl_kind()) {
case OP_ADD:
for (unsigned i = 0; i < sz; ++i) {
if (!is_pb(a->get_arg(i), mul)) return false;
}
for (unsigned i = 0; i < sz; ++i)
if (!is_pb(a->get_arg(i), mul))
return false;
return true;
case OP_SUB: {
if (!is_pb(a->get_arg(0), mul)) return false;
if (!is_pb(a->get_arg(0), mul))
return false;
r = -mul;
for (unsigned i = 1; i < sz; ++i) {
if (!is_pb(a->get_arg(1), r)) return false;
}
for (unsigned i = 1; i < sz; ++i)
if (!is_pb(a->get_arg(i), r))
return false;
return true;
}
case OP_UMINUS:

2
src/cmd_context/cmd_context.cpp
View file

@ -1240,7 +1240,7 @@ bool cmd_context::try_mk_pdecl_app(symbol const & s, unsigned num_args, expr * c
if (!dt.is_datatype(args[0]->get_sort()))
return false;
for (auto* a : dt.plugin().get_accessors(s)) {
for (auto* a : dt.plugin().get_accessors(s)) {
fn = a->instantiate(args[0]->get_sort());
r = m().mk_app(fn, num_args, args);
return true;

9
src/sat/smt/pb_solver.cpp
View file

@ -2039,7 +2039,7 @@ namespace pb {
for (unsigned sz = m_constraints.size(), i = 0; i < sz; ++i) simplify(*m_constraints[i]);
for (unsigned sz = m_learned.size(), i = 0; i < sz; ++i) simplify(*m_learned[i]);
init_use_lists();
remove_unused_defs();
// remove_unused_defs();
set_non_external();
elim_pure();
for (unsigned sz = m_constraints.size(), i = 0; i < sz; ++i) subsumption(*m_constraints[i]);
@ -2528,8 +2528,13 @@ namespace pb {
}
void solver::remove_unused_defs() {
if (incremental_mode()) return;
if (incremental_mode())
return;
// remove constraints where indicator literal isn't used.
NOT_IMPLEMENTED_YET();
// TODO: #6675
// need to add this inequality to the model reconstruction
// stack in order to produce correct models.
for (constraint* cp : m_constraints) {
constraint& c = *cp;
literal lit = c.lit();