Crashed CASSCF TS optimization

Dear Mrs./Ms/Sir,

While running an optimization of the TS at the CASSSCF level of theory, the calculation crushed with the following output:


Charge (ESU x 10^10)
             0.0000
Dipole Moment (Debye)
     X      -0.3522      Y      -1.0170      Z      -0.0076
   Tot       1.0762
Quadrupole Moments (Debye-Ang)
    XX     -37.3692     XY      -6.1148     YY     -35.0199
    XZ      -0.0243     YZ      -0.0123     ZZ     -30.9875
Octopole Moments (Debye-Ang^2)
   XXX     -30.6615    XXY      -7.3178    XYY      -3.8794
   YYY       8.3668    XXZ      -0.0530    XYZ      -0.0186
   YYZ       0.0125    XZZ      -2.9930    YZZ       0.4716
   ZZZ      -0.0114
Hexadecapole Moments (Debye-Ang^3)
  XXXX    -375.7932   XXXY     -42.7486   XXYY     -75.5448
  XYYY     -18.2430   YYYY     -81.2379   XXXZ      -0.1739
  XXYZ      -0.0663   XYYZ      -0.0032   YYYZ      -0.0367
  XXZZ     -54.7427   XYZZ      -5.3254   YYZZ     -18.7890
  XZZZ      -0.0531   YZZZ      -0.0156   ZZZZ     -42.9343

We have computed and dumped the frozen gradient with driver_scfmi. Skip drvman.

Q-Chem fatal error occurred in module libmdc/newfileman.C, line 376:

FileMan error: End of file reached prematurely reading (8) bytes in file FILE_ENERGY_OPTIMIZE
Path: /home/scr/arikco/qchem737499/11101.0

Please submit a crash report at Q-Chem Crash Reporter

My input was as follows:

$comment
Optimize HXeNH2 TS then perform vibrational analysis on final structure.
$end

$molecule
0 1
N 2.4050330 -0.1896840 -0.0006990
Xe -0.4030680 -0.0232200 -0.0000320
H -1.2787395 1.7248850 0.0022659
H 2.2372750 0.4202150 0.8028730
H 2.2375000 0.4281860 -0.7982480
$end

$rem
BASIS GEN
ECP GEN
ECP_FIT = TRUE
PURECART 1

cas_method 2 ! casscf
cas_n_elec 16
cas_n_orb 12
cas_n_roots 1 ! gr, default
cas_save_nat_orbs TRUE !overwrite MOs with CAS natural orbs
max_casscf_cycles 999

jobtype ts
exchange hf

MAX_SCF_CYCLES 999
GEOM_OPT_MAX_CYCLES 999
geom_print TRUE
PRINT_DIST_MATRIX 999
GEOM_OPT_PRINT 5
USE_LIBPT true
$end

$basis
N 0
S 6 1.00
6293.480 0.00196979
949.0440 0.0149613
218.7760 0.0735006
63.69160 0.2489370
18.82820 0.6024600
2.720230 0.2562020
SP 3 1.00
30.63310 0.111906 0.0383119
7.026140 0.921666 0.237403
2.112050 -0.00256919 0.817592
SP 1 1.00
0.684009 1.000000 1.000000
SP 1 1.00
0.200878 1.000000 1.000000
SP 1 1.00
0.0639000 1.0000000 1.0000000
D 1 1.00
1.8260000 1.0000000
D 1 1.00
0.4565000 1.0000000


Xe 0
S 1 1.00
0.7127000 1.0000000
S 1 1.00
0.5719000 1.0000000
S 1 1.00
0.1519000 1.0000000
P 1 1.00
1.2353000 1.0000000
P 1 1.00
0.3726000 1.0000000
P 1 1.00
0.1229000 1.0000000
D 1 1.00
4.5119000 1.0000000
D 1 1.00
2.4799000 1.0000000
D 1 1.00
1.2983000 1.0000000
D 1 1.00
0.5435000 1.0000000


H 0
S 3 1.00
33.86500 0.0254938
5.094790 0.190373
1.158790 0.852161
S 1 1.00
0.325840 1.000000
S 1 1.00
0.102741 1.000000
S 1 1.00
0.0360000 1.0000000
P 1 1.00
1.5000000 1.0000000
P 1 1.00
0.3750000 1.0000000


$end

$ecp
XE 0
XE-ECP 3 36
f potential
4
2 2.24699998 -2.98907089
2 6.12760019 -16.86190414
2 23.48080063 -80.85955811
1 72.73519897 -23.83045006
s-f potential
6
2 1.24269998 36.93946457
2 1.45309997 -117.99051666
2 1.92760003 217.58146667
2 2.56839991 -132.93127441
1 3.60890007 13.86918831
0 2.81739998 7.20968485
p-f potential
6
2 1.02950001 38.26582718
2 1.20910001 -120.96846008
2 1.59679997 217.59863281
2 2.10870004 -144.18939209
1 3.15689993 33.80591965
0 17.37170029 5.23532295
d-f potential
6
2 2.25279999 -17.56745148
2 2.73140001 46.21330261
2 3.76239991 -80.85101318
2 5.32089996 97.02409363
1 8.73659992 -0.88147599
0 18.91500092 8.33844185


$end

$geom_opt
hessian_verify = recomputed !Recompute Exact Hessian for verification
final_vibrational_analysis = true !Perform Vibrational Analysis on optimized Hessian
$end

I thank you in advance for your help.

Best Regards,

Arik

I do not understand this comment:

We have computed and dumped the frozen gradient with driver_scfmi. Skip drvman

However, the part about FILE_ENERGY_OPTIMIZE may indicate a bug, where the CASSCF code is not putting the energy in the right place for the optimizer to find it. As a potential workaround you can try setting GEOM_OPT_DRIVER = OPTIMIZE in $rem, to use an older geometry optimizer. If that doesn’t work then please contact Q-Chem support.