Automated Mutual Explicit Induction Proof in Separation Logic
(1609.00919)Abstract
We present a sequent-based deductive system for automatically proving entailments in separation logic by using mathematical induction. Our technique, called mutual explicit induction proof, is an instance of Noetherian induction. Specifically, we propose a novel induction principle on a well-founded relation of separation logic model and follow the explicit induction methods to implement this principle as inference rules, so that it can be easily integrated into a deductive system. We also support mutual induction, a natural feature of implicit induction, where the goal entailment and other entailments derived during the proof search can be used as hypotheses to prove each other. We have implemented a prototype prover and evaluated it on a benchmark of handcrafted entailments as well as benchmarks from a separation logic competition.
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