In a vehicle roof rack kit a plurality of releasable identical carrier assemblies adapted for securing an object there within and further comprising releasable attaching means for attaching each assembly to the mounting members of a vehicle roof rack. Accordingly, the simulated power state of the portion of the integrated circuit model to be clocked by a clock control model can be monitored based on the indicator from the clock control model, rather than on a higher level analysis of the simulated inputoutput behavior of the integrated circuit model. The extension sections continuously abut the second clamp member to prevent its rotation about the eyebolt. A clip fastener defines a press-fit channel in which the lower flange of the photovoltaic module and the module-support portion of the module rail are press fit to secure the module to the module-support portion of the module rail.