Work Flow is not updated. Showing as cancelled in work flow column

Sometimes this situation may happen, you are making changes to your SPD workflow and they are not reflected on the list/doc library where the workflow is deployed.

reason is that, SPD will use the cahced information from a location such as the following:

%System Drive%\%user%\Local\AppData\Microsoft\WebSiteCache

Here you will find a folder named similar to your SharePoint site on which you are working.

Delete this folder and restart SharePoint Designer and IIS. Make any changes to your workflow and that should be reflected onto your list/library.