Hi Ahsan,
E:\usr\sap\<SID>\SYS\exe\uc\NTAMD64\dipgntab.exe -rwr40 -srctt DDNTT -srctf DDNTF -dsttt DDNTT -dsttf DDNTF -ttonly TT' exits with error code -1.
Try executing the above command manually, as mentioned in 162266 under Step: DIPGNTAB_NT.
Also, have a look at the similar thread.
Homogeneous System Copy (MS SQL Server-specific: Backup/Restore)
System Copy Error ,ERP 6 - EHP4
regards,
pavan