I'm running transient in hspice and unable to get the circuit to converge.
==================================================
**warning** Due to a floating point overflow problem,
the damped pseudo-tran method was used.
Also, gmindc was set to 1.0000E-11
**diagnostic** time step too small in pseudo tran. delta= 8.8818E-19
no convergence in damped pseudo-transient, trying gmath ramping method
**diagnostic** no convergence in gmath method gmath= 0.00
**diagnostic** begin gshunt ramping
**diagnostic** time step too small in pseudo tran. delta= 5.8208E-19
**diagnostic** time step too small in pseudo tran. delta= 4.2333E-19
**diagnostic** time step too small in pseudo tran. delta= 3.0043E-19
**diagnostic** time step too small in pseudo tran. delta= 2.6234E-19
**diagnostic** time step too small in pseudo tran. delta= 9.8683E-19
**diagnostic** time step too small in pseudo tran. delta= 9.5827E-19
**diagnostic** time step too small in pseudo tran. delta= 9.4461E-19
**diagnostic** time step too small in pseudo tran. delta= 9.3792E-19
**diagnostic** time step too small in pseudo tran. delta= 9.3461E-19
**diagnostic** time step too small in pseudo tran. delta= 9.3296E-19
**diagnostic** time step too small in pseudo tran. delta= 9.3214E-19
**diagnostic** time step too small in pseudo tran. delta= 9.3173E-19
**diagnostic** time step too small in pseudo tran. delta= 9.3153E-19
**diagnostic** time step too small in pseudo tran. delta= 9.3142E-19
**diagnostic** time step too small in pseudo tran. delta= 9.3137E-19
**diagnostic** time step too small in pseudo tran. delta= 9.3135E-19
**diagnostic** time step too small in pseudo tran. delta= 9.3134E-19
**diagnostic** time step too small in pseudo tran. delta= 9.3133E-19
**diagnostic** although this circuit has failed to converge
to gshunt= 0.00 , it did converge to a gshunt= 1.000E-03
**error** no convergence in operating point
***
*** hspice diagnostic ***
nonconvergent voltage failures= 0
nonconvergent element current failures= 0
==================================================
Here's my TRAN section :
==================================================
.TRAN 1.00000E-10 14.00000E-08 START= 0.0000
.TEMP 25.0000
.OP
.save
.OPTION WL post probe opts ACCT
+ PROBE=0
+ DELMAX = 1.00000E-09
==================================================
I tried RELTOL=.01 ALTINT=1 and other options but none of them seem to work.
What else is worth trying?
Any help is appreciated.