Simulation of a circuit
It's seem that you use conventional spice format.
If your model "PMOS" is correct, then there are 3 error.


First line is comment line
There must be an .end at the end of file.
The TSTEP must be smaller or equal to TSTOP


Here is the correct format:

****** Comment of this circuit
CCapacitor_1 N_3 N_1  250f  
RResistor_1 Vsprog N_4  R=500  
MPMOS_1 N_3 N_1 N_2 Gnd PMOS W=2.5u L=250n AS=2.25p PS=6.8u AD=2.25p PD=6.8u  
MPMOS_2 Vtun N_1 Vtun Gnd PMOS W=2.5u L=250n AS=2.25p PS=6.8u AD=2.25p PD=6.8u  
MPMOS_3 N_4 N_1 Vdprog Gnd PMOS W=2.5u L=250n AS=2.25p PS=6.8u AD=2.25p PD=6.8u  
GVCCS_G_Element_1 Vtun N_1 Vtun N_1  0.1  
GVCCS_G_Element_2 N_1 Vsprog Vsprog N_1 0.1 

v1 Vtun Gnd dc 0.01
v2 Vsprog Gnd dc 0.03
v3 Vdprog Gnd dc 0.02
.tran 1n 10n
.print I(v1) I(v2) I(v3)
.end