**Phase 1: Completed pre-decoding.
       full event: 'Aug 4 15:11:23 niban groupadd[26459]: new group: name=osaudit, gid=12002'
       hostname: 'melancia'
       program_name: '(null)'
       log: 'Aug 4 15:11:23 niban groupadd[26459]: new group: name=osaudit, gid=12002'

**Phase 2: Completed decoding.
       No decoder matched.