VerifyThis 2017 was a two-day program verification competition which took place from April 22-23rd, 2017 in Uppsala, Sweden as part of the European Joint Conferences on Theory and Practice of Software (ETAPS 2017). It was the sixth instalment in the VerifyThis competition series. This article provides an overview of the VerifyThis 2017 event, the challenges that were posed during the competition, and a high-level overview of the solutions to these challenges. It concludes with the results of the competition.