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fixing problems

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Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
This commit is contained in:
Leonardo de Moura 2012-12-03 11:55:24 -08:00
parent 8744b26d06
commit 847c5f9691
6 changed files with 66 additions and 29 deletions
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19
src/smt/qi_queue.cpp
View file

@ -47,10 +47,21 @@ namespace smt {
void qi_queue::setup() {
TRACE("qi_cost", tout << "qi_cost: " << m_params.m_qi_cost << "\n";);
if (!m_parser.parse_string(m_params.m_qi_cost.c_str(), m_cost_function))
throw default_exception("invalid cost function %s", m_params.m_qi_cost.c_str());
if (!m_parser.parse_string(m_params.m_qi_new_gen.c_str(), m_new_gen_function))
throw default_exception("invalid new-gen function %s", m_params.m_qi_new_gen.c_str());
if (!m_parser.parse_string(m_params.m_qi_cost.c_str(), m_cost_function)) {
// it is not reasonable to abort here during the creation of smt::context just because an invalid option was provided.
// throw default_exception("invalid cost function %s", m_params.m_qi_cost.c_str());
// using warning message instead
warning_msg("invalid cost function '%s', switching to default one", m_params.m_qi_cost.c_str());
// Trying again with default function
VERIFY(m_parser.parse_string("(+ weight generation)", m_cost_function));
}
if (!m_parser.parse_string(m_params.m_qi_new_gen.c_str(), m_new_gen_function)) {
// See comment above
// throw default_exception("invalid new-gen function %s", m_params.m_qi_new_gen.c_str());
warning_msg("invalid new_gen function '%s', switching to default one", m_params.m_qi_new_gen.c_str());
VERIFY(m_parser.parse_string("cost", m_new_gen_function));
}
m_eager_cost_threshold = m_params.m_qi_eager_threshold;
}

36
src/smt/smt_solver.cpp
View file

@ -56,9 +56,13 @@ namespace smt {
virtual void init_core(ast_manager & m, symbol const & logic) {
reset();
#pragma omp critical (solver)
// We can throw exceptions when creating a smt::kernel object
// So, we should create the smt::kernel outside of the criticial section
// block. OMP does not allow exceptions to cross critical section boundaries.
smt::kernel * new_kernel = alloc(smt::kernel, m, m_params);
#pragma omp critical (solver)
{
m_context = alloc(smt::kernel, m, m_params);
m_context = new_kernel;
if (m_callback)
m_context->set_progress_callback(m_callback);
}
@ -77,59 +81,67 @@ namespace smt {
virtual void reset_core() {
if (m_context != 0) {
#pragma omp critical (solver)
#pragma omp critical (solver)
{
dealloc(m_context);
m_context = 0;
}
}
}
// An exception may be thrown when creating a smt::kernel.
// So, there is no guarantee that m_context != 0 when
// using smt_solver from the SMT 2.0 command line frontend.
void check_context() const {
if (m_context == 0)
throw default_exception("Z3 failed to create solver, check previous error messages");
}
virtual void assert_expr(expr * t) {
SASSERT(m_context);
check_context();
m_context->assert_expr(t);
}
virtual void push_core() {
SASSERT(m_context);
check_context();
m_context->push();
}
virtual void pop_core(unsigned n) {
SASSERT(m_context);
check_context();
m_context->pop(n);
}
virtual lbool check_sat_core(unsigned num_assumptions, expr * const * assumptions) {
SASSERT(m_context);
check_context();
TRACE("solver_na2as", tout << "smt_solver::check_sat_core: " << num_assumptions << "\n";);
return m_context->check(num_assumptions, assumptions);
}
virtual void get_unsat_core(ptr_vector<expr> & r) {
SASSERT(m_context);
check_context();
unsigned sz = m_context->get_unsat_core_size();
for (unsigned i = 0; i < sz; i++)
r.push_back(m_context->get_unsat_core_expr(i));
}
virtual void get_model(model_ref & m) {
SASSERT(m_context);
check_context();
m_context->get_model(m);
}
virtual proof * get_proof() {
SASSERT(m_context);
check_context();
return m_context->get_proof();
}
virtual std::string reason_unknown() const {
SASSERT(m_context);
check_context();
return m_context->last_failure_as_string();
}
virtual void get_labels(svector<symbol> & r) {
SASSERT(m_context);
check_context();
buffer<symbol> tmp;
m_context->get_relevant_labels(0, tmp);
r.append(tmp.size(), tmp.c_ptr());