src/http/ngx_http_upstream.c:5417: error: Integer Overflow L2
  ([0, 9223372036854775800] + [0, 9]):signed64 by call to `ngx_http_upstream_add`.

src/http/ngx_http_upstream.c:5410:5: Unknown value from: __infer_skip
5408.     ngx_http_upstream_srv_conf_t  *uscf;
5409. 
5410.     ngx_memzero(&u, sizeof(ngx_url_t));
          ^
5411. 
5412.     value = cf->args->elts;

src/http/ngx_http_upstream.c:5417:12: Call
5415.     u.no_port = 1;
5416. 
5417.     uscf = ngx_http_upstream_add(cf, &u, NGX_HTTP_UPSTREAM_CREATE
                 ^
5418.                                          |NGX_HTTP_UPSTREAM_WEIGHT
5419.                                          |NGX_HTTP_UPSTREAM_MAX_FAILS

src/http/ngx_http_upstream.c:5652:1: Parameter `*u->url.data`
  5650. 
  5651. 
  5652. ngx_http_upstream_srv_conf_t *
        ^
  5653. ngx_http_upstream_add(ngx_conf_t *cf, ngx_url_t *u, ngx_uint_t flags)
  5654. {

src/http/ngx_http_upstream.c:5662:13: Call
  5660.     if (!(flags & NGX_HTTP_UPSTREAM_CREATE)) {
  5661. 
  5662.         if (ngx_parse_url(cf->pool, u) != NGX_OK) {
                    ^
  5663.             if (u->err) {
  5664.                 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0,

src/core/ngx_inet.c:528:1: Parameter `*u->url.data`
    526. 
    527. 
    528. ngx_int_t
         ^
    529. ngx_parse_url(ngx_pool_t *pool, ngx_url_t *u)
    530. {

src/core/ngx_inet.c:545:12: Call
    543.     }
    544. 
    545.     return ngx_parse_inet_url(pool, u);
                    ^
    546. }
    547. 

src/core/ngx_inet.c:627:1: Parameter `*u->url.data`
      625. 
      626. 
      627. static ngx_int_t
           ^
      628. ngx_parse_inet_url(ngx_pool_t *pool, ngx_url_t *u)
      629. {

src/core/ngx_inet.c:648:12: Call
      646.     last = host + u->url.len;
      647. 
      648.     port = ngx_strlchr(host, last, ':');
                      ^
      649. 
      650.     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:650:11: Call
      648.     port = ngx_strlchr(host, last, ':');
      649. 
      650.     uri = ngx_strlchr(host, last, '/');
                     ^
      651. 
      652.     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:652:12: Call
      650.     uri = ngx_strlchr(host, last, '/');
      651. 
      652.     args = ngx_strlchr(host, last, '?');
                      ^
      653. 
      654.     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:681:13: Call
      679.         len = last - port;
      680. 
      681.         n = ngx_atoi(port, len);
                       ^
      682. 
      683.         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. 
