Is this a correct example for free race?

[Kel114514]

I add some additional debug trace for InputEngine, and have an output like this with 3 players free raceing.
Is it an correct example?

It has different output for different times, but some times all InputEngines run in sequence(one starts after another ends). How could we tell if it's correct?

[Troublor]

It has different output for different times, but some times all InputEngines run in sequence(one starts after another ends). How could we tell if it's correct?

You can manually add some delays to the input engines to check the schedule between threads.
But be sure to remove these delays before you submit PA3.