- identify -ping bad.gif
Corrupt GIF => seg fault
The image claims its 51716x9879 pixels which would require alot of resources to be alllocated before ImageMagick discovers the image is corrupt. A quick way to determine it with few resources is with this command:
Beta distributions of ImageMagick are always available here: ftp://ftp.imagemagick.org/pub/ImageMagick/beta.