* Iteration limits: itl1 is only honoured when maxiterfloor is lifted
.model nm nmos level=1 vto=0.7 kp=100u
V1 d 0 2
R1 d dd 1k
VG g 0 1.5
M1 dd g 0 0 nm w=10u l=1u
.option itl1=3            $ ask Newton to give up after 3 iterations
.option maxiterfloor=0    $ ... and actually mean it
.control
  set iter_verbose
  op
.endc
.end