1. A computer-readable, non-transitory medium storing therein a verification support program that causes a computer to execute a procedure, the procedure comprising: detecting a point in time when data of any one transaction among a series of transactions that are to be transmitted in a prescribed sequence from a device under verification, is skipped; detecting a point in time when the data is first transmitted after the detected point in time when the data is skipped; computing time elapsing from the detected point in time when the data is skipped until the detected point in time when the data is transmitted; and outputting a computation result obtained at the computing.