If the bug occurs reasonably often, say usually once every 10 minutes, you can model an exponential distribution of the intervals between the bug triggering and

If the bug occurs reasonably often, say usually once every 10 minutes, you can model an exponential distribution of the intervals between the bug triggering and then use the distribution to "prove" the bug is fixed in cases where the root cause isn't clear: https://frdmtoplay.com/statistically-squashing-bugs/ https://frdmtoplay.com/statistically-squashing-bugs/