Abstraction of Expectation Functions Using Gaussian Distributions

  • Authors:
  • David Monniaux

  • Affiliations:
  • -

  • Venue:
  • VMCAI 2003 Proceedings of the 4th International Conference on Verification, Model Checking, and Abstract Interpretation
  • Year:
  • 2002

Quantified Score

Hi-index 0.00

Visualization

Abstract

We consider semantics of infinite-state programs, both probabilistic and nondeterministic, as expectation functions: for any set of states A, we associate to each program point a function mapping each state to its expectation of starting a trace reaching A. We then compute a safe upper approximation of these functions using abstract interpretation. This computation takes place in an abstract domain of extended Gaussian (normal) distributions.