no define_arc generated using write_template -truth_table

Hello,

I am trying to characterize a custom cell using LIBERATE 23.1.

I created a truth table  in a .tt file as it follow

* MODE= STD
* DELAY_TEM = delay_template1_3x3
* POWER_TEM = power_template1_3x3
* CELL = customCell
* INPUT_PINS= {WL BLGRD BLB XB}
* OUTPUT_PINS = {PPOut}
* BIDI_PINS = {Q}
* DUAL_IN = {BLGRD:BLB}
* TABLE =   WL BLGRD BLB  Q XB @ Q  POut
            0   X     X   0 X  @ 0     -
            0   X     X   1 X  @ 1     -
            1   0     1   0 X  @ 0     -
            1   0     1   1 X  @ 0     -
            1   0     1   X X  @ 0     -
            1   1     0   0 X  @ 1     -
            1   1     0   1 X  @ 1     -
            1   1     0   X X  @ 1     -
            X   X     X   0 0  @ -     0
            X   X     X   0 1  @ -     0
            X   X     X   1 0  @ -     1
            X   X     X   1 1  @ -     0

* TABLE_END

In my char.tcl file I deine the templates for delay and power and I use the commands

read_truth_table $rundir/truthTable.tt
write_template -verbose -truth_table $rundir/template_truthtable

However in the generated template file the define cell function doesnot contain any inputs/outputs


define_cell \
    -delay delay_template1_3x3 \
    -power power_template1_3x3 \
    customCell

and I have only define_leakage commands and no define_ arc

I do not understand what is wrong in my truth table to have this result.

Maybe you can help with this ?

Thank you in advance

Mathieu