printf( "Time1 ................. %llu cycles\n", t1 );
   printf( "Time2 ................. %llu cycles\n", t2 );
   printf( "Time2 - Time1 ......... %llu cycles\n", time_passed );
   printf( "Minimum exptected time: %u cycles\n\n", expected_time );

   if( time_passed < expected_time ) {
      Failed();
      } else {
      Passed();
      }

Time1 ................. 1523867754751077 cycles
Time2 ................. 1523891533354504 cycles
Time2 - Time1 ......... 23778603427 cycles
Minimum exptected time: 1280072496 cycles

FAILED

#include <stdio.h>

main()
{
unsigned long long num1 = 23778603427;
unsigned long long num2 = 1280072496;

if (num1 < num2)
   { printf("Failed!\n"); }
      else
   { printf("Passed!\n"); }

}

#include <stdio.h>

main()
{
unsigned long long num1 = 23778603427ll;
unsigned long long num2 = 1280072496ll;

if (num1 < num2)
   { printf("Failed!\n"); }
      else
   { printf("Passed!\n"); }

}