This book constitutes the refereed proceedings of the 17th International Conference on Computer Aided Verification, CAV 2005, held in Edinburgh, Scotland, UK in July 2005.

The 32 revised full papers presented together with 16 tool papers and 3 invited papers, as well as a report on a special tools competition were carefully reviewed and selected from 155 submissions. The papers cover all current issues in computer aided verification and model checking, ranging from foundational and methodological issues to the evaluation of major tools and systems.