INFORMATION PROCESSOR AND PROGRAM

PROBLEM TO BE SOLVED: To synchronize the simulation time of simulators which simulate respective functions of a simulation target device without lowering processing efficiency of the respective simulators.SOLUTION: An information processor includes a plurality of simulators 502-504 and a simulator connection part 501 for holding advance unit time and managing the reference time. Each simulator executes simulation processing when receiving a restart instruction from the simulator connection part 501, and notifies the simulator connection part 501 of time information when it is turned to an instruction waiting state of waiting for an instruction from the simulator connection part 501. The simulator connection part 501 instructs the simulator to restart when the time information notified from the simulator does not reach the reference time, updates the reference time so as to advance by the advance unit time when the time information notified from all the simulators becomes the time after the reference time, and instructs all the simulators to restart, whose time information have not reached the updated reference time.