This book constitutes the refereed proceedings of the 9th International Conference on Tests and
Proofs TAP 2015 held in L` Aquila Italy in July 2015 as part of the STAF 2015 Federated
Conferences. The 11 revised full papers and 1 short papers presented together with 3 invited
talks were carefully reviewed and selected from 21 submissions. The accepted papers contribute
to various testing techniques (model-based property-based grammar-based bounded-exhaustive)
fault localization model-driven engineering as well as model coverage consistency and
validation among others. Many papers rely on interactive and automatic theorem provers
including SMT solvers and model checkers.
