This information processing device includes: an analysis unit that parses a program assigned to a task which is periodically executed; and an output unit. The analysis unit classifies each of at least one variable used to execute the task into a first group in which a process of reading a value from a memory is performed first and a second group in which a process of writing a value in the memory is performed first. The analysis unit determines that the necessity for a soft error measure for a variable belonging to the first group is greater than the necessity for a soft error measure for a variable belonging to the second group. The output unit outputs a determination result. Thus, a variable that requires a soft error measure can be identified.