Multiple clocks are user generated or auto-derived on the source
pin(s) <pin_names> but are not logically or
physically exclusive with respect to one another. To have the static timing analysis
match the behavior in hardware, there cannot be multiple clocks generated on the
same pin(s). In such cases, the clocks should be defined as physically or logically
exclusive. The list of clocks generated on the source pin(s) is: <clock_names>.