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add core validation option to directly validate cores using the context

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Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
This commit is contained in:
Nikolaj Bjorner 2015-08-10 10:56:07 +02:00
parent 76ca64b93b
commit db24cb8087
6 changed files with 36 additions and 1 deletions
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1
src/smt/params/smt_params.cpp
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@ -35,6 +35,7 @@ void smt_params::updt_local_params(params_ref const & _p) {
m_delay_units_threshold = p.delay_units_threshold();
m_preprocess = _p.get_bool("preprocess", true); // hidden parameter
m_timeout = p.timeout();
m_core_validate = p.core_validate();
model_params mp(_p);
m_model_compact = mp.compact();
if (_p.get_bool("arith.greatest_error_pivot", false))

2
src/smt/params/smt_params.h
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@ -195,6 +195,7 @@ struct smt_params : public preprocessor_params,
//
// -----------------------------------
bool m_display_installed_theories;
bool m_core_validate;
// -----------------------------------
//
@ -269,6 +270,7 @@ struct smt_params : public preprocessor_params,
m_model_on_final_check(false),
m_progress_sampling_freq(0),
m_display_installed_theories(false),
m_core_validate(false),
m_preprocess(true), // temporary hack for disabling all preprocessing..
m_user_theory_preprocess_axioms(false),
m_user_theory_persist_axioms(false),

3
src/smt/params/smt_params_helper.pyg
View file

@ -57,5 +57,6 @@ def_module_params(module_name='smt',
('dack.factor', DOUBLE, 0.1, 'number of instance per conflict'),
('dack.gc', UINT, 2000, 'Dynamic ackermannization garbage collection frequency (per conflict)'),
('dack.gc_inv_decay', DOUBLE, 0.8, 'Dynamic ackermannization garbage collection decay'),
('dack.threshold', UINT, 10, ' number of times the congruence rule must be used before Leibniz\'s axiom is expanded')
('dack.threshold', UINT, 10, ' number of times the congruence rule must be used before Leibniz\'s axiom is expanded'),
('core.validate', BOOL, False, 'validate unsat core produced by SMT context')
))

1
src/smt/smt_context.cpp
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@ -2928,6 +2928,7 @@ namespace smt {
for (unsigned i = 0; i < sz; i++) {
tout << mk_pp(m_unsat_core.get(i), m_manager) << "\n";
});
validate_unsat_core();
}
/**

2
src/smt/smt_context.h
View file

@ -1046,6 +1046,8 @@ namespace smt {
void mk_unsat_core();
void validate_unsat_core();
void init_search();
void end_search();

28
src/smt/smt_context_inv.cpp
View file

@ -399,5 +399,33 @@ namespace smt {
#endif
/**
\brief validate unsat core returned by
*/
void context::validate_unsat_core() {
if (!get_fparams().m_core_validate) {
return;
}
context ctx(get_manager(), get_fparams(), get_params());
ptr_vector<expr> assertions;
get_assertions(assertions);
unsigned sz = assertions.size();
for (unsigned i = 0; i < sz; ++i) {
ctx.assert_expr(assertions[i]);
}
sz = m_unsat_core.size();
for (unsigned i = 0; i < sz; ++i) {
ctx.assert_expr(m_unsat_core.get(i));
}
lbool res = ctx.check();
switch (res) {
case l_false:
break;
default:
UNREACHABLE();
throw default_exception("Core could not be validated");
}
}
};