A method of adjusting operating conditions includes: a substrate; first conductive layers; a first semiconductor layers facing the first conductive layers; a second semiconductor layer connected to the first semiconductor layers; and an electric charge accumulating layer disposed between the first conductive layers and the first semiconductor layers. At a predetermined timing of a program operation, the second conductive layer which is one of the first conductive layers is supplied with a program voltage or a write pass voltage. The method executes: a first operation that supplies the second conductive layer with the write pass voltage and supplies a third conductive layer which is one of the plurality of first conductive layers with the program voltage; and a second operation that supplies the second conductive layer with a verify voltage and supplies the third conductive layer with a voltage.