post simulation problems with ultrasim

design with TSMC 0.18um lib,
the post netlist is not hierarchy,so i use ultrasim to tradeoff the speed and accuracy
the problem is:
this mos model is binning model(scalable),there are 20 sub-models in every mos type, nch.0 , nch.1 , nch.2 .... for nch (digital nchannal transistor).

my usim_opt set up is as fellow

usim_opt sim_mode=s speed=2 @nch33
usim_opt sim_mode=s speed=2 @pch33

usim_opt sim_mode=df @nch
usim_opt sim_mode=df @pch

but the log file shows that there is no spice & df mos transistors, all of the transistors are marked by type "a" (default ?)

but when i set up like fellow:

usim_opt sim_mode=da

usim_opt sim_mode=s speed=2 @nch33
usim_opt sim_mode=s speed=2 @pch33

usim_opt sim_mode=df @nch
usim_opt sim_mode=df @pch

all of the transistors are marked as "da" , the simulator recongnise mos type only
through globle announcement？

but when i change a SMIC tech lib, which is not a binning model file, there was no errors...

need your help! THANK YOU!