Thank you for your prompt answer!
Please find attached to this post:
the input.scs file, the verilogA model of noise, and the simulations results: transient, noise, PSS, Pnoise and noise summary for phase noise.
The Phase noise and its associated noise summary show that there is only Flicker noise contribution to phase noise but there is still 0 slope phase noise and 1/f2 slope phase noise whereas there should be only 1/f slope and 1/f3 slope phase noise !
I hope you have enough informations..