AUTONOMOUS DRIVING SYSTEM

Processing for autonomous driving control of a vehicle, processing to store log data related to the autonomous driving control in one or more memory devices during an execution of the autonomous driving control, and processing to predict a mileage of the vehicle is executed. In the processing to predict the mileage, a free space of the one or more memory devices in which log data is stored is acquired. In addition, the mileage is set according to the acquired free space. The mileage is set to be shorter as the free space is smaller.