How to make Macintosh HD size the same as SSD
Your main CoreStorage container has a size of 250.1 GB with 45.8 GB of unallocated container disk space.

Usually you can expand the size of a Logical Volume to the full size of the Logical Volume Group if no other blocking Logical Volumes exist in the same group.

This is done with the command:

diskutil cs resizeVolume lvUUID size


In you case that's:

diskutil cs resizeVolume FEB0DA59-F214-4841-A491-59BFE7F9DEE4 250g


If the Logical Volume is encrypted it has to be unlocked.



Failing to change the disk layout with Boot Camp Assistant often corrupts internals of the Logical Volume Group and the above command fails. Then you have to remove the Logical Volume Group and restore a Time Machine backup to an erased and JHFS+ formatted disk0s2 partition