Yes; any CrashDump files will be in the '..\Divinity - Original Sin\Shipping' install folder.
In Windows the
D:OS support tool will generate a report.zip file which will include system and game information, any crash dumps, and your saved games (some or all of which can be deleted from the zip to reduce file size, depending on the issue).
On Mac, crash reports are collected in the "Console" application.
