Abstract not found

Abstract not found

This technical report is a collection of the memos written by members of the VLSI Research

Briefly presenting a generalization of Allen's interval-based approach to temporal reasoning, this paper will see point & typed-based structure of time intervals as an intended model of point & interval-based time theory to illustrate a Consistency Checker for Uncertain or Incomplete

-analysis results for multiple-view consistency and assertion checking, allows the re-use of single-view technology (e.g. standard model checkers), and transforms many meta-results (e.g. soundness of abstraction) from the singleview to the multiple-view setting. We formulate assertionconsistency lattices as a

continuous change. HyTech is a symbolic model checker for linear hybrid automata, a subclass of hybrid automata that can be analyzed automatically by computing with polyhedral state sets. A key feature of HyTech is its ability to perform parametric analysis, i.e. to determine the values of design parameters

service than conventional periodic data backup systems. Unfortunately, no existing block-level CDP systems can support arbitrary point-in-time snapshots that are guaranteed to be consistent with respect to the metadata of the application server. This deficiency seriously limits the flexibility in recovery

Technical diagnosis is often confronted with machines that still work but should possibly be repaired to increase efficiency or to avoid general failure. Postmortem repair strategies are usually too late and tend to increase costs. Prophylactic maintenance of machinery at regular intervals does not lead to unexpected breakdowns but is equally costly. The best strategy would be repairing or replacing defective equipment at a certain optimal point in time usually shortly before imminent failure, the latter being in general difficult to predict correctly. However, it is possible to monitor and capture various parameters coming from the equipment through sensors and to establish some connection between these and the danger of such failure. Nevertheless, given a diagnosis problem, it is usually difficult to choose a priori parameters describing how the available data should be considered. Counterintuitive small changes in the parameters can have chaotic effects on maintenance decisions. We ...

The majority of work carried out in the formal methods community throughout the last three decades has (for good reasons) been devoted to special languages designed to make it easier to experiment with mechanized formal methods such as theorem provers, proof checkers and model checkers

. The process is realized in the SLAM toolkit, which consists of a model checker, predicate abstraction tool and predicate discovery tool. We have applied the SLAM toolkit to a number of Windows NT device drivers to validate critical safety properties such as correct locking behavior. We have found