Model-driven Validation of SystemC Designs

Functional test generation for dynamic validation of current system level designs is a challenging task. Manual test writing or automated random test generation techniques are often used for such validation practices. However, directing tests to particular reachable states of a SystemC model is often difficult, especially when these models are large and complex. In this work, we present a model-driven methodology for generating directed tests that take the SystemC model under validation to specific reachable states. This allows the validation to uncover very specific scenarios which lead to different corner cases. Our formal modeling is done entirely within the Microsoft SpecExplorer tool to describe the specification of the system under validation in the notation of AsmL. We also exploit SpecExplorer's abilities for state space exploration for our test generations, and its APIs for connecting the model to implementation programs to drive the validation of SystemC models with the generated test cases.