TITLE: Software for Tree-Decompositions
QUESTION [6 upvotes]: Does anybody know about software that exactly calculates the tree-width of a given graph and outputs a tree-decomposition? I am only interested in tree-decompositions of reasonbly small graphs, but need the exact solution and a tree-decomposition. Any comments would be great. Thanks!

REPLY [3 votes]: You could try the LibTW software, which is freely available from http://www.treewidth.com/ (also read their FAQ linked at the bottom of the page). It's written in Java so you can easily extend it with your own functionality.