Design simulation (Lib generation) with Encounter Library characterizer

 Good morning,

When i lauch my script for ELC i get 57 tests passed and 2 failed. Reading the .log, i don't arrive to find the mistake.

here the display message:

 with the ELC tool:

   DESIGN        PROCESS       #ID         STATUS     IPDB
-------------+-------------+----------+--------------+-----------

MUX31   typical       D0000          PASSED    MUX31

MUX31   typical       D0001          PASSED    MUX31

[....]

MUX31   typical       D0026          FAILED    MUX31
MUX31   typical       D0027          FAILED    MUX31

[....]

MUX31   typical       D0043          PASSED    MUX31
MUX31   typical       D0044          PASSED    MUX31
MUX31   typical       D0045          PASSED    MUX31
MUX31   typical       D0046          PASSED    MUX31
MUX31   typical       D0047          PASSED    MUX31
MUX31   typical       D0048          PASSED    MUX31
MUX31  typical       R0000          PASSED    MUX31
MUX31  typical       R0001          PASSED    MUX31
MUX31  typical       R0002          PASSED    MUX31
MUX31  typical       R0003          PASSED    MUX31
MUX31  typical       R0004          PASSED    MUX31
MUX31   typical       R0005          PASSED    MUX31
MUX31   typical       R0006          PASSED   MUX31
MUX31  typical       R0007          PASSED    MUX31
MUX31   typical       R0008          PASSED    MUX31
MUX31  typical       R0009          PASSED    MUX31
============|=============|=============|==========|==============
MUX31   typical       59         57            MUX31
-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-
               Simulation Summary               
-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-
-------------+-------------+----------+--------------+-----------
-------------+-------------+----------+------------+-----------+------------
   DESIGN    |   PROCESS   |   #ID    |   STAGE    |  STATUS   |    IPDB
-------------+-------------+----------+------------+-----------+------------
MUX31   typical       D0026     VERIFICATE   FAIL        MUX31
MUX31  typical       D0027     VERIFICATE   FAIL        MUX31
-------------+-------------+----------+------------+----------

******************************************************

When i have a look on the .log corresponding to D0027 and D0026 for example i have this warning

 D0026.log

Total 25 waveforms translated to DB
D0    :    L -> L
D1    :    L -> L
D2    :    L -> L
S0    :    H -> H
S0N    :    L -> L
S1    :    R -> R
S1N    :    F -> F
Z    :    R -> L
[WARNING(dssimchk)] Z : simulated value mismatch with estimated value.
VDD    :    H -> H
GND    :    L -> L
NET080    :    H -> H
Verification aborted
Releasing lock
 

 D0027.log

Total 25 waveforms translated to DB
D0    :    L -> L
D1    :    H -> H
D2    :    L -> L
S0    :    H -> H
S0N    :    L -> L
S1    :    R -> R
S1N    :    F -> F
Z    :    F -> H
[WARNING(dssimchk)] Z : simulated value mismatch with estimated value.
VDD    :    H -> H
GND    :    L -> L
NET080    :    L -> L
Verification aborted
Releasing lock
 

 ***********************************************************

and a example of a passed one:  D0023.log

Total 25 waveforms translated to DB
D0    :    H -> H
D1    :    L -> L
D2    :    L -> L
S0    :    F -> F
S0N    :    R -> R
S1    :    L -> L
S1N    :    H -> H
Z    :    R -> R
VDD    :    H -> H
GND    :    L -> L
NET080    :    L -> L
Waveform matching done

Waveform measurment done

Releasing lock

----------------------------------------------

Thank you for your aids