MRCI via MOLCAS 4.0

From: Keith Kuwata <kuwata -AatT- chem.ucla.edu>
Subject: MRCI via MOLCAS 4.0
Date: Mon, 23 Aug 1999 12:38:25 -0700 (PDT)

Hi,
 I have gotten around the 300-vertex limit in attempting MRCI
 calculations.  I have been successful with MRCI calculations
 with up to 3 reference configurations.  But when I try 6,
 as this guga.input file shows...
  &GUGA &END
 Electrons
    23
 Spin
    2
 *Symmetry
 *    4
 Inactive
    9
 Active
    5
 Reference
   6  5
 21200
 21020
 21002
 01220
 01211
 01202
 End of Input
 GUGA runs without incident, but MRCI crashes thus:
  ------------------------------------------------------------
     MR SDCI CALCULATION.
  ------------------------------------------------------------
           CONVERGENCE STATISTICS:
  ITER NVEC    ENERGIES    LOWERING RESIDUAL SEL.WGT CPU(S) CPU TOT
   Error in IJKL IVL.
 STOP 20
 Any idea what is wrong?
 Thanks for the help,
 Keith Kuwata