**DIRAC
.TITLE
  H2O,count CC memory demand
.WAVE FUNCTION
**MOLECULE
*BASIS
.DEFAULT
dyall.ae4z
**GENERAL
.PCMOUT
**HAMILTONIAN
.X2C
**INTEGRALS
*READIN
.UNCONTRACT
**WAVE FUNCTION
.SCF
.RELCCSD
**SCF
.PRINT
1
.CLOSED SHELL
10
.EVCCNV
1.0D-8 1.0D-6
# reads starting MO's from DFPCMO
.MAXITR
2
**MOLTRA
# freeze O:1s(2)
.ACTIVE
energy -10.00  50.00 0.02
# no 2-electron integrals transformations for RelCC memory count
# as only MRCONEE is needed
.NO4IND
**RELCCSD
# only count the memory cost and exit
.COUNTMEM
.NELEC
4 4
*CCENER
.NTOL
6
*END OF