The Use of Rippling to Automate Event-B Invariant Preservation Proofs

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Abstract

Proof automation is a common bottleneck for industrial adoption of formal methods. In Event-B, a significant proportion of proof obligations which require human interaction fall into a family called invariant preservation. In this paper we show that a rewriting technique called rippling can increase the automation of proofs in this family, and extend this technique by combining two existing approaches.