That only tells you what functions got called on that run, for that run's sequence of inputs.

https://fgiesen.wordpress.com/2012/04/08/metaprogramming-for...

Taster:

> In the menu at the start, cursor-down works, but cursor-up doesn’t (he never hit cursor-up in menus during the test run). The small enemies at the start can hit you, but he didn’t get hit by any enemy shots, so in the released version of .kkrieger enemy shots deal no damage.