This is a java program made to validate the paper TimeReach: Historical Reachability Queries on Evolving graphs by Konstantinos Semertzidis.
the paper can be found here: http://openproceedings.org/2015/conf/edbt/paper-89.pdf The presentation we gave about our findings can be found here: http://prezi.com/rf4yvle4viyg/present/?auth_key=8isjlus&follow=qlek0dlee3pl