Mulai: task1 -> running (PID: 2109765)
Mulai: task2 -> running (PID: 2109767)
Selesai: task1 -> done (PID: 2109765)
Mulai: task1.1 -> running (PID: )
Selesai: task1.1 -> done (PID: )
Selesai: task2 -> done (PID: 2109767)
Mulai: task2.2 -> running (PID: 2109770)
Selesai: task2.2 -> done (PID: 2109770)
Mulai: task2.3 -> running (PID: )
Selesai: task2.3 -> done (PID: )