How to understand the statistics output file

[bungdanar]

Hello, I have question regarding the statistics file.

I have used evomaster to fuzz my simple application that has 3 endpoints. After the fuzzing was done, I checked my application log and there were many requests causing internal server error (500).

When I check the generated statistics file, it shows only 3 errors5xx and 3 distinct500Faults. Does this mean that even if there are many 500 errors on 1 endpoint, they are still counted as 1 error?

Here it is my statistics file content:

Metric	Count
evaluatedTests	167
individualsWithSqlFailedWhere	0
evaluatedActions	892
elapsedSeconds	302
generatedTests	4
generatedTestTotalSize	4
coveredTargets	14
lastActionImprovement	430
distinctActions	3
endpoints	3
covered2xx	1
gqlNoErrors	0
gqlErrors	0
gqlErrorsPerLines	0
errors5xx	3
distinct500Faults	3
failedOracleExpectations	0
potentialFaults	6

[arcuri82]

Hi,
from Statistics.kt:

// errors5xx - counting only the number of endpoints with 5xx, and NOT last executed line
add(Pair("errors5xx", "" + errors5xx(solution)))
//distinct500Faults - counts the number of 500 (and NOT the other in 5xx), per endpoint, and distinct based on the last
//executed line
add(Pair("distinct500Faults", "" + solution.overall.potential500Faults(idMapper).size ))

[bungdanar]

I am sorry, it is still not clear to me.

Just to be sure, so evomaster only counts the number of endpoints that have 500 error and doesn't count the number of unique requests/payloads that cause 500 error?

Or does distinct500Faults actually describe the number of unique requests/payloads that cause 500 error?