presto-verifier/src/main/java/io/prestosql/verifier/Validator.java/Validator/tearDownControl
class Validator:    private void tearDownControl()
    {
        QueryResult controlTearDownResult = executeTearDown(
                queryPair.getControl(),
                controlGateway,
                controlUsername,
                controlPassword,
                controlTimeout,
                controlPostQueryResults,
                controlTeardownRetries);
        if (controlTearDownResult.getState() != State.SUCCESS) {
            log.warn("Control table teardown failed");
        }
    }