I am trying to do a frequency calculations on an optimized CASSCF geometry to determine the nature of the stationary point. I use the following instruction for the geometry calculation:

# freq casscf(6,5)/6-31+g(d) nosymm guess=(read,save) geom=connective

y pop=full scf=(direct,maxcycle=1000)

However, I keep obtaining the following problem, just after the frequency calculation starts:

NO. OF ORBITALS =183 NO. OF CORE-ORBITALS = 30

NO. OF VALENCE-ORBITALS = 5 NO. OF VIRTUAL-ORBITALS =148

USED ACCURACY IN CHECKING CONVERGENCE = 1.00D-08

Memory needed for direct integral evaluation: 114212559

Direct SDER calculation needs more space: 114212559

DISK based calculation

Calculation does not fit in Transformation

Increase the memory to: 95598997

Error termination via Lnk1e in C:\G09W\l510.exe at Sat Nov 23 10:11:41 2013.

Job cpu time: 0 days 0 hours 0 minutes 17.0 seconds.

File lengths (MBytes): RWF= 5 Int= 0 D2E= 0 Chk= 2 Scr= 1.

May you kindly assist with how I can get out of this problem?