server/mpm/event/event.c:1170: error: INTEGER_OVERFLOW_L2
  ([0, +oo] - 1):unsigned32 by call to `TO_QUEUE_REMOVE`.

server/mpm/event/event.c:1169:17: Unknown value from: __infer_skip
1167.             rv = apr_pollset_add(event_pollset, &cs->pfd);
1168.             if (rv != APR_SUCCESS && !APR_STATUS_IS_EEXIST(rv)) {
1169.                 AP_DEBUG_ASSERT(0);
                      ^
1170.                 TO_QUEUE_REMOVE(cs->sc->wc_q, cs);
1171.                 apr_thread_mutex_unlock(timeout_mutex);

server/mpm/event/event.c:1170:17: Call
1168.             if (rv != APR_SUCCESS && !APR_STATUS_IS_EEXIST(rv)) {
1169.                 AP_DEBUG_ASSERT(0);
1170.                 TO_QUEUE_REMOVE(cs->sc->wc_q, cs);
                      ^
1171.                 apr_thread_mutex_unlock(timeout_mutex);
1172.                 ap_log_error(APLOG_MARK, APLOG_ERR, rv, ap_server_conf, APLOGNO(03465)

server/mpm/event/event.c:317:1: <LHS trace>
315. }
316. 
317. static void TO_QUEUE_REMOVE(struct timeout_queue *q, event_conn_state_t *el)
     ^
318. {
319.     APR_RING_REMOVE(el, timeout_list);

server/mpm/event/event.c:317:1: Parameter `*q->total`
  315. }
  316. 
  317. static void TO_QUEUE_REMOVE(struct timeout_queue *q, event_conn_state_t *el)
       ^
  318. {
  319.     APR_RING_REMOVE(el, timeout_list);

server/mpm/event/event.c:321:5: Binary operation: ([0, +oo] - 1):unsigned32 by call to `TO_QUEUE_REMOVE` 
  319.     APR_RING_REMOVE(el, timeout_list);
  320.     APR_RING_ELEM_INIT(el, timeout_list);
  321.     --*q->total;
           ^
  322.     --q->count;
  323. }
