presto-main/src/main/java/io/prestosql/type/Re2JRegexp.java/RE2JEventsListener/fallbackToNFA
class RE2JEventsListener:        @Override
        public void fallbackToNFA()
        {
            log.debug("Fallback to NFA, pattern: %s, DFA states limit: %d, DFA retries: %d", re2jPattern.pattern(), dfaStatesLimit, dfaRetries);
        }