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model evaluator: cleanup cache when model_eval param changes

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This commit is contained in:
Nuno Lopes 2019-03-02 16:42:18 +00:00
parent 210e448666
commit ccc170a06e
3 changed files with 15 additions and 14 deletions

1
src/api/api_model.cpp
View file

@ -15,7 +15,6 @@ Author:
Revision History:
--*/
#include<iostream>
#include "api/z3.h"
#include "api/api_log_macros.h"
#include "api/api_context.h"

27
src/model/model_evaluator.cpp
View file

@ -36,7 +36,7 @@ Revision History:
#include "model/model_smt2_pp.h"
#include "ast/rewriter/var_subst.h"
namespace {
struct evaluator_cfg : public default_rewriter_cfg {
ast_manager & m;
model_core & m_model;
@ -53,7 +53,6 @@ struct evaluator_cfg : public default_rewriter_cfg {
unsigned long long m_max_memory;
unsigned m_max_steps;
bool m_model_completion;
bool m_cache;
bool m_array_equalities;
bool m_array_as_stores;
obj_map<func_decl, expr*> m_def_cache;
@ -91,7 +90,6 @@ struct evaluator_cfg : public default_rewriter_cfg {
model_evaluator_params p(_p);
m_max_memory = megabytes_to_bytes(p.max_memory());
m_max_steps = p.max_steps();
m_cache = p.cache();
m_model_completion = p.completion();
m_array_equalities = p.array_equalities();
m_array_as_stores = p.array_as_stores();
@ -328,8 +326,6 @@ struct evaluator_cfg : public default_rewriter_cfg {
return num_steps > m_max_steps;
}
bool cache_results() const { return m_cache; }
br_status mk_array_eq(expr* a, expr* b, expr_ref& result) {
TRACE("model_evaluator", tout << "mk_array_eq " << m_array_equalities << "\n";);
if (a == b) {
@ -544,8 +540,7 @@ struct evaluator_cfg : public default_rewriter_cfg {
return true;
}
};
template class rewriter_tpl<evaluator_cfg>;
}
struct model_evaluator::imp : public rewriter_tpl<evaluator_cfg> {
evaluator_cfg m_cfg;
@ -557,6 +552,11 @@ struct model_evaluator::imp : public rewriter_tpl<evaluator_cfg> {
set_cancel_check(false);
}
void expand_stores(expr_ref &val) {m_cfg.expand_stores(val);}
void reset() {
rewriter_tpl<evaluator_cfg>::reset();
m_cfg.reset();
m_cfg.m_def_cache.reset();
}
};
model_evaluator::model_evaluator(model_core & md, params_ref const & p) {
@ -580,7 +580,10 @@ void model_evaluator::get_param_descrs(param_descrs & r) {
}
void model_evaluator::set_model_completion(bool f) {
m_imp->cfg().m_model_completion = f;
if (m_imp->cfg().m_model_completion != f) {
reset();
m_imp->cfg().m_model_completion = f;
}
}
bool model_evaluator::get_model_completion() const {
@ -597,8 +600,8 @@ unsigned model_evaluator::get_num_steps() const {
void model_evaluator::cleanup(params_ref const & p) {
model_core & md = m_imp->cfg().m_model;
dealloc(m_imp);
m_imp = alloc(imp, md, p);
m_imp->~imp();
new (m_imp) imp(md, p);
}
void model_evaluator::reset(params_ref const & p) {
@ -607,8 +610,8 @@ void model_evaluator::reset(params_ref const & p) {
}
void model_evaluator::reset(model_core &model, params_ref const& p) {
dealloc(m_imp);
m_imp = alloc(imp, model, p);
m_imp->~imp();
new (m_imp) imp(model, p);
}

1
src/model/model_evaluator_params.pyg
View file

@ -3,7 +3,6 @@ def_module_params('model_evaluator',
params=(max_memory_param(),
max_steps_param(),
('completion', BOOL, False, 'assigns an interptetation to symbols that do not have one in the current model, when evaluating expressions in the current model'),
('cache', BOOL, True, 'cache intermediate results in the model evaluator'),
('array_equalities', BOOL, True, 'evaluate array equalities'),
('array_as_stores', BOOL, True, 'return array as a set of stores'),
))