Unifying functional and parametric timing verification

  • Authors:
  • Luis Guerra e Silva

  • Affiliations:
  • INESC-ID / IST / TU Lisbon, Lisbon, Portugal

  • Venue:
  • Proceedings of the great lakes symposium on VLSI
  • Year:
  • 2012

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Abstract

This paper proposes a unified modeling framework for timing verification of IC designs that, through an elegant SMT-based formulation, seamlessly integrates functional timing analysis and parametric delay modeling. Such framework enables accurate timing verification by simultaneously ignoring false paths and accounting for process variability. By casting the timing verification problem as a general SMT instance it is possible to benefit from the continuous advances in performance and robustness of modern SMT engines. The proposed framework is validated for a representative set of benchmarks, using Microsoft's Z3 SMT solver.