The personnel system of a certain unit stipulates that only at the end of the day can you get the Attendance Award or Year-end Award only if you perform well in time and do not arrive late and leave early. Which of the following conditions reflects a violation of the unit's personnel system? ['Lao Wu performed positively in the unit, did not arrive late and leave early throughout the year, but did not receive the year-end award at the end of the year.', 'Xiao Li was late three times throughout the year due to traffic jams, and the unit decided not to give him an attendance award.', 'Old Zhang usually performs well, never arrives late and leaves early, and the unit gave him a year-end award at the end of the year.', 'Xiao Wang left early and was found by the leader. The attendance award was gone, but he still got the year-end award.']