HOME: Heard-Of based Formal Modeling and Verification Environment for Consensus Protocols
Consensus protocol plays an important role in ensuring the reliability of distributed systems. How to formally model and verify it is a hot research issue. Due to the limitation of verification performance, it can usually verify consensus algorithms with a small number of processes. The Heard-Of (HO) model is well-performing in formal verification. However, existing works only support HO modeling for Crash Fault Tolerant (CFT) protocols and rely on SMT-based verification. It cannot model Byzantine Fault Tolerant (BFT) protocols, nor can it support SAT solving. This paper designs and implements an HO-based formal modeling and verification environment for consensus protocols. We extend the semantics of the HO model to model the threshold-guarded distributed BFT protocol and formally defined HOML (HO modeling language). We get through the formal verification process from HOML to SAT/SMT solving, which improves the verification performance. HOME can facilitate the design of consensus protocols and help find safety problems. Repo: https://github.com/tempAcc000/HOME Video: https://www.youtube.com/watch?v=DFuVWP8xHNU
Wed 17 MayDisplayed time zone: Hobart change
11:00 - 12:30 | Formal verificationSEIP - Software Engineering in Practice / DEMO - Demonstrations / Technical Track / NIER - New Ideas and Emerging Results / Showcase at Meeting Room 104 Chair(s): Bonita Sharif University of Nebraska-Lincoln, USA | ||
11:00 15mTalk | How Do We Read Formal Claims? Eye-Tracking and the Cognition of Proofs about Algorithms Technical Track Hammad Ahmad University of Michigan, Zachary Karas University of Michigan, Kimberly Diaz University of Michigan, Amir Kamil University of Michigan, Jean-Baptiste Jeannin University of Michigan at Ann Arbor, Westley Weimer University of Michigan | ||
11:15 15mTalk | Which of My Assumptions are Unnecessary for Realizability and Why Should I Care? Technical Track Pre-print | ||
11:30 15mTalk | Understanding Inconsistency in Azure Cosmos DB with TLA+ SEIP - Software Engineering in Practice Alistair Finn Hackett University of British Columbia, Joshua Rowe Microsoft, Markus Alexander Kuppe Microsoft Research | ||
11:45 15mTalk | Rely/Guarantee Reasoning for Multicopy Atomic Weak Memory Models Showcase Nicholas Coughlin Defence Science and Technology Group, Australia, Kirsten Winter Defence Science and Technology Group, Australia, Graeme Smith The University of Queensland | ||
12:00 7mTalk | HOME: Heard-Of based Formal Modeling and Verification Environment for Consensus Protocols DEMO - Demonstrations Shumao Zhai Beihang University, Xiaozhou Li University of Oulu, Ning Ge School of Software, Beihang University | ||
12:07 7mTalk | CoVeriTeam Service: Verification as a Service DEMO - Demonstrations | ||
12:15 7mTalk | Proofster: Automated Formal Verification DEMO - Demonstrations Arpan Agrawal University of Illinois Urbana-Champaign, Emily First University of Massachusetts Amherst, Zhanna Kaufman University of Massachusetts, Tom Reichel University of Illinois Urbana-Champaign, Shizhuo Zhang University of Illinois Urbana-Champaign, Timothy Zhou University of Illinois Urbana-Champaign, Alex Sanchez-Stern University of Massachusetts at Amherst, Talia Ringer University of Illinois at Urbana-Champaign, Yuriy Brun University of Massachusetts Media Attached | ||
12:22 7mTalk | Anti-Patterns (Smells) in Temporal Specifications NIER - New Ideas and Emerging Results Dor Ma'ayan Tel Aviv University, Shahar Maoz Tel Aviv University, Jan Oliver Ringert Bauhaus-University Weimar Pre-print | ||