src/http/ngx_http_upstream.c:5445: error: Integer Overflow L2
  ([0, 9223372036854775800] + [0, 9]):signed64 by call to `ngx_http_upstream_add`.

src/http/ngx_http_upstream.c:5438:5: Unknown value from: __infer_skip
5436.     ngx_http_upstream_srv_conf_t  *uscf;
5437. 
5438.     ngx_memzero(&u, sizeof(ngx_url_t));
          ^
5439. 
5440.     value = cf->args->elts;

src/http/ngx_http_upstream.c:5445:12: Call
5443.     u.no_port = 1;
5444. 
5445.     uscf = ngx_http_upstream_add(cf, &u, NGX_HTTP_UPSTREAM_CREATE
                 ^
5446.                                          |NGX_HTTP_UPSTREAM_WEIGHT
5447.                                          |NGX_HTTP_UPSTREAM_MAX_CONNS

src/http/ngx_http_upstream.c:5698:1: Parameter `*u->url.data`
  5696. 
  5697. 
  5698. ngx_http_upstream_srv_conf_t *
        ^
  5699. ngx_http_upstream_add(ngx_conf_t *cf, ngx_url_t *u, ngx_uint_t flags)
  5700. {

src/http/ngx_http_upstream.c:5708:13: Call
  5706.     if (!(flags & NGX_HTTP_UPSTREAM_CREATE)) {
  5707. 
  5708.         if (ngx_parse_url(cf->pool, u) != NGX_OK) {
                    ^
  5709.             if (u->err) {
  5710.                 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0,

src/core/ngx_inet.c:677:1: Parameter `*u->url.data`
    675. 
    676. 
    677. ngx_int_t
         ^
    678. ngx_parse_url(ngx_pool_t *pool, ngx_url_t *u)
    679. {

src/core/ngx_inet.c:694:12: Call
    692.     }
    693. 
    694.     return ngx_parse_inet_url(pool, u);
                    ^
    695. }
    696. 

src/core/ngx_inet.c:776:1: Parameter `*u->url.data`
      774. 
      775. 
      776. static ngx_int_t
           ^
      777. ngx_parse_inet_url(ngx_pool_t *pool, ngx_url_t *u)
      778. {

src/core/ngx_inet.c:797:12: Call
      795.     last = host + u->url.len;
      796. 
      797.     port = ngx_strlchr(host, last, ':');
                      ^
      798. 
      799.     uri = ngx_strlchr(host, last, '/');

src/core/ngx_string.h:65:1: Parameter `c`
        63. #define ngx_strchr(s1, c)   strchr((const char *) s1, (int) c)
        64. 
        65. static ngx_inline u_char *
            ^
        66. ngx_strlchr(u_char *p, u_char *last, u_char c)
        67. {

src/core/ngx_inet.c:799:11: Call
      797.     port = ngx_strlchr(host, last, ':');
      798. 
      799.     uri = ngx_strlchr(host, last, '/');
                     ^
      800. 
      801.     args = ngx_strlchr(host, last, '?');

src/core/ngx_string.h:65:1: Parameter `c`
        63. #define ngx_strchr(s1, c)   strchr((const char *) s1, (int) c)
        64. 
        65. static ngx_inline u_char *
            ^
        66. ngx_strlchr(u_char *p, u_char *last, u_char c)
        67. {

src/core/ngx_inet.c:801:12: Call
      799.     uri = ngx_strlchr(host, last, '/');
      800. 
      801.     args = ngx_strlchr(host, last, '?');
                      ^
      802. 
      803.     if (args) {

src/core/ngx_string.h:65:1: Parameter `c`
        63. #define ngx_strchr(s1, c)   strchr((const char *) s1, (int) c)
        64. 
        65. static ngx_inline u_char *
            ^
        66. ngx_strlchr(u_char *p, u_char *last, u_char c)
        67. {

src/core/ngx_inet.c:830:13: Call
      828.         len = last - port;
      829. 
      830.         n = ngx_atoi(port, len);
                       ^
      831. 
      832.         if (n < 1 || n > 65535) {

src/core/ngx_string.c:910:5: <LHS trace>
908.     }
909. 
910.     cutoff = NGX_MAX_INT_T_VALUE / 10;
         ^
911.     cutlim = NGX_MAX_INT_T_VALUE % 10;
912. 

src/core/ngx_string.c:910:5: Assignment
        908.     }
        909. 
        910.     cutoff = NGX_MAX_INT_T_VALUE / 10;
                 ^
        911.     cutlim = NGX_MAX_INT_T_VALUE % 10;
        912. 

src/core/ngx_string.c:901:1: <RHS trace>
899. 
900. 
901. ngx_int_t
     ^
902. ngx_atoi(u_char *line, size_t n)
903. {

src/core/ngx_string.c:901:1: Parameter `*line`
        899. 
        900. 
        901. ngx_int_t
             ^
        902. ngx_atoi(u_char *line, size_t n)
        903. {

src/core/ngx_string.c:922:9: Binary operation: ([0, 9223372036854775800] + [0, 9]):signed64 by call to `ngx_http_upstream_add` 
        920.         }
        921. 
        922.         value = value * 10 + (*line - '0');
                     ^
        923.     }
        924. 
