Timing analyzer and 1200mV 0C "fast" model

Minimum pulse width errors won't show up in the simulation. If d is coming from another domain, then at some time you will violate the setup or hold of the receive register, and that register will go metastable, so be sure your design handles that(add one or two more registers to de-metastabilize it). If you want the register to not go to X in the simulation, then in the Assignment Editor apply the setting "Show X on Violation" to Off for that register.