TLA-CI

TLA+ specifications accompanying paper: Automated Validation of State-Based Client-Centric Isolation with TLA+ (ASYDE'20) (https://doi.org/10.1007/978-3-030-67220-1_4). Based on Crooks' Isolation.

The code can be run with both:

• TLA+ Toolbox
• TLA+ VSCode plugin

Contents

• ClientCentric.tla contains the definitions of Crooks' Isolation model.
• ClientCentricPaperExamples.tla contains some examples from the paper. For example ASSUME test(Serializability(as1, bankTransactions), TRUE) shows that the banking example is serializable, but the other ordering isn't (Serializability(as1, bBankTransactions = FALSE), but is Snapshot Isolatable: ASSUME test(executionSatisfiesCT(bExecution, CT_SI), TRUE).
• The 2PL related files show how a specification bug in a 2PL/2PC protocol can result in not serializable behavior.

Please contact me for more details.