I wonder what status id : 4 means

[r01ex]

[Request 2023. 10. 25. 오후 4:57:51] POST http://localhost:2358/submissions?wait=true
{
"source_code": "#include <stdio.h>\n#include <time.h>\n#include <unistd.h>\nint main()\n{\n struct timespec res;\n long nano1,nano2;\n\n /* read consecutive nanosecond values */\n clock_gettime(CLOCK_REALTIME,&res);\n nano1 = res.tv_nsec;\n sleep(5);\n clock_gettime(CLOCK_REALTIME,&res);\n nano2 = res.tv_nsec;\n printf("Difference: %lu\n",nano2-nano1);\n\n return(0);\n}",
"language_id": "50",
"number_of_runs": null,
"stdin": "Judge0",
"expected_output": "",
"cpu_time_limit": null,
"cpu_extra_time": null,
"wall_time_limit": null,
"memory_limit": null,
"stack_limit": null,
"max_processes_and_or_threads": null,
"enable_per_process_and_thread_time_limit": null,
"enable_per_process_and_thread_memory_limit": null,
"max_file_size": null,
"enable_network": null
}
[Response 2023. 10. 25. 오후 4:57:57] 201 Created
{
"stdout": "Difference: 530361\n",
"time": "0.004",
"memory": 924,
"stderr": null,
"token": "87459364-1451-438d-ad1d-05c6d6fc7999",
"compile_output": null,
"message": null,
"status": {
"id": 4,
"description": "Wrong Answer"
}
}
Above is the full request and response from dummy html
The running code is following
#include <stdio.h>
#include <time.h>
#include <unistd.h>
int main()
{
struct timespec res;
long nano1,nano2;

/* read consecutive nanosecond values */
clock_gettime(CLOCK_REALTIME,&res);
nano1 = res.tv_nsec;
sleep(5);
clock_gettime(CLOCK_REALTIME,&res);
nano2 = res.tv_nsec;
printf("Difference: %lu\n",nano2-nano1);

return(0);

}
Why isn't runtime larger than 5 seconds and what does status id 4 wrong answer means