Mac HD not able to fill up 50gb of hard drive, Disk Utility and Terminal not locating anything

I recently did a bootcamp partition, 50gb, and when I was in windows, accidentally pressed "format". This was after an error given by windows as it was finishing up installation, and I went back into Mac and tried to delete the partitions. Boot Camp deleted OSXRESERVED, but not the other partition as "an internal state error occurred". After trying many things I eventually reformatted that partition as "Free space" through Terminal, but after that it disappeared. The problem is that Macintosh HD is unable to fill up that 'Free space' and it's not showing up through Disk Utility or Terminal.