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In-Person Poster presentation / poster accept

Iterative Circuit Repair Against Formal Specifications

Matthias Cosler · Frederik Schmitt · Christopher Hahn · Bernd Finkbeiner

MH1-2-3-4 #28

Keywords: [ Applications ] [ transformer ] [ repair ] [ sequential circuits ] [ synthesis ]

Abstract: We present a deep learning approach for repairing sequential circuits against formal specifications given in linear-time temporal logic (LTL). Given a defective circuit and its formal specification, we train Transformer models to output circuits that satisfy the corresponding specification. We propose a separated hierarchical Transformer for multimodal representation learning of the formal specification and the circuit. We introduce a data generation algorithm that enables generalization to more complex specifications and out-of-distribution datasets. In addition, our proposed repair mechanism significantly improves the automated synthesis of circuits from LTL specifications with Transformers. It improves the state-of-the-art by $6.8$ percentage points on held-out instances and $11.8$ percentage points on an out-of-distribution dataset from the annual reactive synthesis competition.

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