Formal synthesis ensures the correctness of hardware synthesis by automatically deriving the circuit implementation by behavior preserving transformations within a theorem prover. In this paper, we present a new approach to formal synthesis that is able to handle control flow intensive descriptions. In particular, we consider here the scheduling phase, which is a central task in high-level synthesis. We describe a methodology employing a new control flow oriented representation which allows the fully automatic scheduling of control flow intensive descriptions in formal synthesis. To obtain scheduled circuits of high quality, the scheduling is guided by conventional scheduling algorithms.

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