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fix cover retrieval for slicing

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Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
This commit is contained in:
Nikolaj Bjorner 2012-11-13 17:00:01 +01:00
parent 854641c8db
commit 68ae5d434c
6 changed files with 67 additions and 20 deletions
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29
src/muz_qe/pdr_dl_interface.cpp
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@ -39,7 +39,8 @@ dl_interface::dl_interface(datalog::context& ctx) :
m_ctx(ctx),
m_pdr_rules(ctx),
m_old_rules(ctx),
m_context(0) {
m_context(0),
m_refs(ctx.get_manager()) {
m_context = alloc(pdr::context, ctx.get_fparams(), ctx.get_params(), ctx.get_manager());
}
@ -78,6 +79,8 @@ lbool dl_interface::query(expr * query) {
//we restore the initial state in the datalog context
m_ctx.ensure_opened();
m_pdr_rules.reset();
m_refs.reset();
m_pred2slice.reset();
m_ctx.get_rmanager().reset_relations();
ast_manager& m = m_ctx.get_manager();
datalog::rule_manager& rule_manager = m_ctx.get_rule_manager();
@ -116,10 +119,20 @@ lbool dl_interface::query(expr * query) {
m_ctx.transform_rules(transformer, mc, pc);
query_pred = slice->get_predicate(query_pred.get());
m_ctx.set_output_predicate(query_pred);
// track sliced predicates.
obj_map<func_decl, func_decl*> const& preds = slice->get_predicates();
obj_map<func_decl, func_decl*>::iterator it = preds.begin();
obj_map<func_decl, func_decl*>::iterator end = preds.end();
for (; it != end; ++it) {
m_pred2slice.insert(it->m_key, it->m_value);
m_refs.push_back(it->m_key);
m_refs.push_back(it->m_value);
}
}
if (m_ctx.get_params().get_uint(":unfold-rules",0) > 0) {
unsigned num_unfolds = m_ctx.get_params().get_uint(":unfold-rules",0);
unsigned num_unfolds = m_ctx.get_params().get_uint(":unfold-rules", 0);
datalog::rule_transformer transformer1(m_ctx), transformer2(m_ctx);
if (m_ctx.get_params().get_uint(":coalesce-rules", false)) {
transformer1.register_plugin(alloc(datalog::mk_coalesce, m_ctx));
@ -160,15 +173,23 @@ lbool dl_interface::query(expr * query) {
}
}
expr_ref dl_interface::get_cover_delta(int level, func_decl* pred) {
return m_context->get_cover_delta(level, pred);
expr_ref dl_interface::get_cover_delta(int level, func_decl* pred_orig) {
func_decl* pred = pred_orig;
m_pred2slice.find(pred_orig, pred);
SASSERT(pred);
return m_context->get_cover_delta(level, pred_orig, pred);
}
void dl_interface::add_cover(int level, func_decl* pred, expr* property) {
if (m_ctx.get_params().get_bool(":slice", true)) {
throw default_exception("Covers are incompatible with slicing. Disable slicing before using covers");
}
m_context->add_cover(level, pred, property);
}
unsigned dl_interface::get_num_levels(func_decl* pred) {
m_pred2slice.find(pred, pred);
SASSERT(pred);
return m_context->get_num_levels(pred);
}