Clion can't read from a file

Hi. I just instaled Clion and want to read from a file. I have given you the relevant code and a picture of my folder. When I run the program by pressing the play button, I get the output “file can't be opened”. I do not know if the makeFile is relevent or not, therefor I give it to you as well. I have no clue how the makeFile works btw :)

int *memory;
int size;

size = 0;

FILE *fp = fopen("addresses.txt", "r");

char line[1000];

if (NULL == fp) {
    printf("file can't be opened \n");
}

while(fgets(line, sizeof(line), fp) != NULL){
    memory = realloc(memory, (size + 1) * sizeof(int));
    size ++;

    sscanf(line, "0x%x", &memory[size - 1]);
}

fclose(fp);

cmake_minimum_required(VERSION 3.26)
project(untitled C)

set(CMAKE_C_STANDARD 23)

add_executable(untitled main.c)