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https://github.com/Z3Prover/z3
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local changes
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3 changed files with 44 additions and 0 deletions
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@ -1297,6 +1297,45 @@ namespace pdr {
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}
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};
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void context::validate() {
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if (!m_params.get_bool(":validate-result", false)) {
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return;
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}
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switch(m_last_result) {
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case l_true: {
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proof_ref pr = get_proof();
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proof_checker checker(m);
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expr_ref_vector side_conditions(m);
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bool ok = check(pr, side_conditions);
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if (!ok) {
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IF_VERBOSE(0, verbose_stream() << "proof validation failed\n";);
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}
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break;
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}
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case l_false: {
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expr_ref_vector refs(m);
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model_ref model;
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vector<relation_info> rs;
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get_level_property(m_inductive_lvl, refs, rs);
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inductive_property ex(m, const_cast<model_converter_ref&>(m_mc), rs);
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ex.to_model(model);
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decl2rel::iterator it = m_rels.begin(), end = m_rels.end();
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var_subst vs(m, false);
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for (; it != end; ++it) {
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ptr_vector<datalog::rule> const& rules = it->m_value->rules();
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for (unsigned i = 0; i < rules.size(); ++i) {
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datalog::rule* rule = rules[i];
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// vs(rule->get_head(),
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// apply interpretation of predicates to rule.
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// create formula and check for unsat.
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}
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}
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break;
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}
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default:
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break;
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}
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}
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void context::reset_core_generalizers() {
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std::for_each(m_core_generalizers.begin(), m_core_generalizers.end(), delete_proc<core_generalizer>());
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@ -1371,6 +1410,7 @@ namespace pdr {
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check_quantifiers();
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IF_VERBOSE(1, verbose_stream() << "\n"; m_search.display(verbose_stream()););
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m_last_result = l_true;
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validate();
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return l_true;
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}
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catch (inductive_exception) {
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@ -1378,6 +1418,7 @@ namespace pdr {
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m_last_result = l_false;
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TRACE("pdr", display_certificate(tout););
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IF_VERBOSE(1, display_certificate(verbose_stream()););
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validate();
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return l_false;
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}
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catch (unknown_exception) {
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