I'd suggest to increase Upgrade Management Tool (UMT) timeout and heapsize
- Increase the amount of memory that you allocate to the UMT by changing the command line parameter -Xmx8g.
Start -> BI4.1 -> upgrade management tool properties
Target: "E:\Program Files (x86)\SAP BusinessObjects\SAP BusinessObjects Enterprise XI 4.0\win64_x64\sapjvm\bin\javaw.exe" -Xmx56g -Djava.library.path="..\..\..\..\win64_x64" -Dumt.systemVar.override.pluginTimeoutInSec=86400 -jar upgrademanagementtool.jar
- increase the CORBA time for Upgrade Management tool to 24 hours
edit E:\Program Files (x86)\SAP BusinessObjects\SAP BusinessObjects Enterprise XI 4.0\java\apps\upgradeManagementTool\jars\upgradeManagementToolSystem.properties
<entry key="umt.systemVar.backendCommunicationTimeoutInMS">86400000</entry>
Also, the TEMP free space should be at least 1.5 times of the source files size.
Regards,
Jin-Chong