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local changes

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This commit is contained in:
Nikolaj Bjorner 2012-10-31 10:37:05 -07:00
parent b1ce9f796c
commit 832ade3ac8
3 changed files with 44 additions and 0 deletions
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41
src/muz_qe/pdr_context.cpp
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@ -1297,6 +1297,45 @@ namespace pdr {
}
};
void context::validate() {
if (!m_params.get_bool(":validate-result", false)) {
return;
}
switch(m_last_result) {
case l_true: {
proof_ref pr = get_proof();
proof_checker checker(m);
expr_ref_vector side_conditions(m);
bool ok = check(pr, side_conditions);
if (!ok) {
IF_VERBOSE(0, verbose_stream() << "proof validation failed\n";);
}
break;
}
case l_false: {
expr_ref_vector refs(m);
model_ref model;
vector<relation_info> rs;
get_level_property(m_inductive_lvl, refs, rs);
inductive_property ex(m, const_cast<model_converter_ref&>(m_mc), rs);
ex.to_model(model);
decl2rel::iterator it = m_rels.begin(), end = m_rels.end();
var_subst vs(m, false);
for (; it != end; ++it) {
ptr_vector<datalog::rule> const& rules = it->m_value->rules();
for (unsigned i = 0; i < rules.size(); ++i) {
datalog::rule* rule = rules[i];
// vs(rule->get_head(),
// apply interpretation of predicates to rule.
// create formula and check for unsat.
}
}
break;
}
default:
break;
}
}
void context::reset_core_generalizers() {
std::for_each(m_core_generalizers.begin(), m_core_generalizers.end(), delete_proc<core_generalizer>());
@ -1371,6 +1410,7 @@ namespace pdr {
check_quantifiers();
IF_VERBOSE(1, verbose_stream() << "\n"; m_search.display(verbose_stream()););
m_last_result = l_true;
validate();
return l_true;
}
catch (inductive_exception) {
@ -1378,6 +1418,7 @@ namespace pdr {
m_last_result = l_false;
TRACE("pdr", display_certificate(tout););
IF_VERBOSE(1, display_certificate(verbose_stream()););
validate();
return l_false;
}
catch (unknown_exception) {

2
src/muz_qe/pdr_context.h
View file

@ -333,6 +333,8 @@ namespace pdr {
void reset_core_generalizers();
void validate();
public:
/**

1
src/muz_qe/pdr_dl_interface.cpp
View file

@ -206,6 +206,7 @@ void dl_interface::collect_params(param_descrs& p) {
p.insert(":flexible-trace", CPK_BOOL, "PDR: (default false) allow PDR generate long counter-examples by extending candidate trace within search area");
p.insert(":unfold-rules", CPK_UINT, "PDR: (default 0) unfold rules statically using iterative squarring");
p.insert(":use-model-generalizer", CPK_BOOL, "PDR: (default false) use model for backwards propagation (instead of symbolic simulation)");
p.insert(":validate-result", CPK_BOOL, "PDR (default false) validate result (by proof checking or model checking)");
PRIVATE_PARAMS(p.insert(":use-multicore-generalizer", CPK_BOOL, "PDR: (default false) extract multiple cores for blocking states"););
PRIVATE_PARAMS(p.insert(":use-inductive-generalizer", CPK_BOOL, "PDR: (default true) generalize lemmas using induction strengthening"););
PRIVATE_PARAMS(p.insert(":use-interpolants", CPK_BOOL, "PDR: (default false) use iZ3 interpolation for lemma generation"););