disk utility stopped repairing macintosh hd

I tried to install windows 10 iso by using bootcamp. During the disk partitioning for windows, its shown "your disk couldn't be partitioned". then i tried solve by using disk utility and click verify disk. At the time of verifing result shown in another dialog box"disk utility stopped repairing macintosh hd".

"disk utility stopped repairing macintosh hd".-This disk needs to be repaired using the Recovery HD. Restart your computer, holding down the Command key and the R key until you see the Apple logo. When the OS X Utilities window appears, choose Disk Utility.

I tried those method also but after restarting the mac i checked disk utility with verify disk then again same dialog box with same message shown.

How can I solve this error.

Thanks,

Arun