[IBIS] C_comp Max < C_comp Min

Hello Ibis experts,

 I'm working in CMOS tecnology;
 very often in the C_comp extraction I obtain the Min value bigger then Max value:
 the values come from ac simulations in these conditions:

 C_comp Min value consider: Vcc Min, Process Min, Temp Max
 C_comp Max value consider: Vcc Max, Process Max, Temp Min

 The Ibis Check output is:

WARNING (line 76) -
    Model mod1: C_comp min value is not the smallest value listed
WARNING (line 76) -
    Model mod1: C_comp max value is not the largest value listed

Is that situation acceptable?
or I have to switch the Min Value with Max Value?

... suggestions are welcome !

Thank you,
Fabio

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