vuln-5 divide with only one item on stack tries to access item at array index undefined

poc/vuln-5.poc

+push 10
+/
\ No newline at end of file

src/vuln-5/dc.c

@@ -518,7 +518,7 @@ static int execute(void){
       return -1;
     }
     
-    if (stack_size() < 2){
+    if (stack_size() < 1){
       debug_printf("Add from insufficient stack\n");
       return -1;
     }