DATA PROCESSING DEVICE AND DATA PROCESSING METHOD

PROBLEM TO BE SOLVED: To improve efficiency of a dynamic program analysis with a simple configuration.SOLUTION: A data processing device comprises: a determination unit for determining execution states of commands at a plurality of branch points on the basis of matching or mismatching between trace data and collation data corresponding to a series of commands, which are executed by an arithmetic processing unit, having the plurality of branch points respectively; and a tabulation unit for, when the series of commands are executed for a plurality of times by the arithmetic processing unit, tabulating the frequency of the commands at the plurality of branch points for each combination of the execution states. Thus, information for improving the efficiency of a dynamic program analysis can be provided to an operator without storing a large quantity of trace data.