The process was interrupted because the logfile became too large
From Bibledit
The problem lies with the compiler included with the SWORD API.
When compiling projects that use segmented verses, like 4a and 4b, the compiler enters an infinite loop and keeps writing the same line to the logfile. This would cause the logfile to completely fill your harddisk if this were allowed to continue. Bibledit therefore continually monitors the size of the logfile. It it grows too big then it interrupts the compiler, and gives the error message you've seen.
Exporting the project to SWORD format still partially succeeds and you can see in GnomeSword or BibleTime how much of your project came through.
Viewing the System log will show the problem, but it may take a while to open because of the sheer size of the logfile.
The bug in the compiler has been reported to the SWORD developers.