Test run for mutex4

Busy waiting example 4:
Process 0 is NON critical
Process 1 is NON critical
Process 1 entering critical section
Process 1 leaving critical section
Process 1 is NON critical
Process 0 entering critical section
Process 0 leaving critical section
Process 0 is NON critical
Process 1 entering critical section
Process 1 leaving critical section
Process 1 is NON critical
Process 0 entering critical section
Process 0 leaving critical section
Process 0 is NON critical
Process 1 entering critical section
Process 1 leaving critical section
Process 1 is NON critical
Process 0 entering critical section
Process 0 leaving critical section
Process 0 is NON critical
Process 1 entering critical section
Process 1 leaving critical section
Process 1 is NON critical
Process 0 entering critical section
Process 0 leaving critical section
Process 0 is NON critical
Process 1 entering critical section
Process 1 leaving critical section
Process 1 is NON critical