Temporal assertions with parametrised propositions

  • Authors:
  • Volker Stolz

  • Affiliations:
  • United Nations University, Institute for Software Technology

  • Venue:
  • RV'07 Proceedings of the 7th international conference on Runtime verification
  • Year:
  • 2007

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Abstract

We extend our previous approach to runtime verification of a single finite path against a formula in Next-free Linear-Time Logic (LTL) with free variables and quantification. The existing approach is extended from event-based to set-based states, and the design-space of quantification is discussed. By introducing a binary operator that binds values based on the current state, we can dispense with the static analysis of a formula. The binding semantics of propositions containing quantified variables is simplified by a pure top-down evaluation. The alternating binding automaton corresponding to a formula is evaluated in a breadth-first manner, allowing us to instantly detect refuted formulae during execution.