Termination Competition

Annual International Termination Competition

During the 90's a number of new, powerful termination methods was developed. Thus, at the the beginning of the millennium many research groups started to develop tools for fully-automated termination analysis.

After a tool demonstration at the 2003 Workshop on Termination in Valencia, the community decided to install an annual termination competition to spur the development of tools and new termination techniques.

From 2004 till 2007 the competition was hosted in Paris. Since 2008 the competition is hosted in Innsbruck.

Upcoming Competition

We plan to have the Termination Competition 2012 as an IJCAR satellite event.

Competition Categories

Currently, the competition features the following categories:

• termination of string and term rewriting
• termination of logic programs
• certified termination of string and term rewriting (since 2007)
• termination of functional programs (since 2007)
• complexity of term rewriting (since 2008)
• termination of java bytecode programs (since 2009)
• termination of higher order rewriting (since 2010)

Planned extensions:

• integer term rewriting (under consideration)

Discussion is open and primarily happens on the termtools mailing list. Decisions will be made by votes among the Termination Competition Steering Committee.

Termination Problems Data Base

The Termination Problems Data Base collects all the problems used in the competitions.

We welcome problem submissions from non-participants.

History of Termination Competitions

The following competitions have taken place:

• Termination Competition 2011, results

• Termination Competition 2010, results

• Termination Competition 2009 Results, Announcement, Web site.

• Termination Competition 2008, Report
• Termination Competition 2007, Report
• Termination Competition 2006
• Termination Competition 2005, Report
• Termination Competition 2004, Report