I don’t think the report file you posted comes from a “thorough scan”. Could it be the case that you have the report files configured to be appened (i.e. you don’t have the “overwrite report file” option checked) and this piece simply comes from one of the previous scans?

Please note that “log” is not the same as “report”. Limiting the log size imposes size limit on avast! event log - which has very little to do with the report file.