How to use "diskutil corestorage revert lvuuid" on Yosemite if disk says it is not reversible?
looking at your diskutil list output, your disk0s2 partition type is not correct; it should be Apple_CoreStorage, but has remained Apple_HFS (probably due to the interruption of the conversion process). If you are able to access the data on your internal disk, I would recommend backing up your data first. 
erasing your internal disk and doing a clean reinstallation of OS X, running Software Update to bring it up-to-date, and then restoring from your backup maybe the simple way.

if you want to do, you can find a way to fix that. Unfortunately I can not reproduce the problem, so I can not give exact instructions.

BTW: after making a backup, you can try disk utility app to repair disk, maybe it will solve this issue.