This book constitutes the refereed proceedings of the 15th International Symposium on Automated Technology for Verification and Analysis, ATVA 2017, held in Pune, India, in October 2017. The 22 full and 7 short papers presented in this volume were carefully reviewed and selected from 78 submissions. The book also contains one invited talk in full-paper length. The contributions are organized in topical sections named: program analysis; model checking and temporal logics; neural networks; learning and invariant synthesis; and hybrid systems and control.