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[SMTChecker] User timeout option

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This commit is contained in:
Leonardo Alt
2020-11-03 10:46:11 +00:00
parent 22b31054b6
commit d03ddeb0fa
47 changed files with 436 additions and 62 deletions
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libsmtutil/Z3CHCInterface.cpp
+15 -4
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@@ -27,14 +27,19 @@ using namespace std;
using namespace solidity;
using namespace solidity::smtutil;
Z3CHCInterface::Z3CHCInterface():
m_z3Interface(make_unique<Z3Interface>()),
Z3CHCInterface::Z3CHCInterface(optional<unsigned> _queryTimeout):
CHCSolverInterface(_queryTimeout),
m_z3Interface(make_unique<Z3Interface>(m_queryTimeout)),
m_context(m_z3Interface->context()),
m_solver(*m_context)
{
// These need to be set globally.
z3::set_param("rewriter.pull_cheap_ite", true);
z3::set_param("rlimit", Z3Interface::resourceLimit);
if (m_queryTimeout)
m_context->set("timeout", int(*m_queryTimeout));
else
z3::set_param("rlimit", Z3Interface::resourceLimit);
setSpacerOptions();
}
@@ -97,7 +102,13 @@ pair<CheckResult, CHCSolverInterface::CexGraph> Z3CHCInterface::query(Expression
}
catch (z3::exception const& _err)
{
if (_err.msg() == string("max. resource limit exceeded"))
set<string> msgs{
/// Resource limit (rlimit) exhausted.
"max. resource limit exceeded",
/// User given timeout exhausted.
"canceled"
};
if (msgs.count(_err.msg()))
result = CheckResult::UNKNOWN;
else
result = CheckResult::ERROR;