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Issue #354. Fix unsoundness in Array theory based on missing propagation of selects over ite expressions

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Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
This commit is contained in:
Nikolaj Bjorner 2016-01-10 17:11:12 -08:00
parent 0df4931c4b
commit fce286db91
10 changed files with 112 additions and 10 deletions
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10
src/smt/smt_model_checker.cpp
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@ -346,6 +346,10 @@ namespace smt {
for (; it != end; ++it) {
quantifier * q = *it;
if(!m_qm->mbqi_enabled(q)) continue;
TRACE("model_checker",
tout << "Check: " << mk_pp(q, m_manager) << "\n";
tout << m_context->get_assignment(q) << "\n";);
if (m_context->is_relevant(q) && m_context->get_assignment(q) == l_true) {
if (m_params.m_mbqi_trace && q->get_qid() != symbol::null) {
verbose_stream() << "(smt.mbqi :checking " << q->get_qid() << ")\n";
@ -364,8 +368,12 @@ namespace smt {
m_iteration_idx++;
TRACE("model_checker", tout << "model after check:\n"; model_pp(tout, *md););
TRACE("model_checker", tout << "model checker result: " << (num_failures == 0) << "\n";);
TRACE("model_checker", tout << "model checker result: " << (num_failures == 0) << "\n";);
m_max_cexs += m_params.m_mbqi_max_cexs;
if (num_failures == 0 && !m_context->validate_model()) {
num_failures = 1;
}
if (num_failures == 0)
m_curr_model->cleanup();
if (m_params.m_mbqi_trace) {