@InProceedings{mota_et_al:LIPIcs.ECOOP.2023.40, author = {Mota, Jo\~{a}o and Giunti, Marco and Ravara, Ant\'{o}nio}, title = {{On Using VeriFast, VerCors, Plural, and KeY to Check Object Usage}}, booktitle = {37th European Conference on Object-Oriented Programming (ECOOP 2023)}, pages = {40:1--40:29}, series = {Leibniz International Proceedings in Informatics (LIPIcs)}, ISBN = {978-3-95977-281-5}, ISSN = {1868-8969}, year = {2023}, volume = {263}, editor = {Ali, Karim and Salvaneschi, Guido}, publisher = {Schloss Dagstuhl -- Leibniz-Zentrum f{\"u}r Informatik}, address = {Dagstuhl, Germany}, URL = {https://drops.dagstuhl.de/entities/document/10.4230/LIPIcs.ECOOP.2023.40}, URN = {urn:nbn:de:0030-drops-182330}, doi = {10.4230/LIPIcs.ECOOP.2023.40}, annote = {Keywords: Java, Typestates, VeriFast, VerCors, Plural, KeY} }