In reply to chr_sue:
I think, the issue here is, the DUT is right in having the resetvalue of 3, but the reg_model is expecting a value of 0 (which is an issue). So as a workaround he is trying to update the mirror value.
But, I think eventually he will need to fix the reg_model, rather than the working around it.
**Solution:**Now coming to WA, I think rather than predict(), you can use set_reset(val) I think.
Regards,
Ashith