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Visual Analysis of Hyperproperties for Understanding Model Checking Results
HyperVis visualizes counterexamples from model checking hyperproperties, aiding understanding of system errors. This tool enhances analysis and iteration of system specifications, improving upon manual methods.
Area of Science:
- Computer Science
- Software Engineering
- Formal Methods
Background:
- Model checking verifies system properties against mathematical models.
- Hyperproperties specify requirements across multiple system executions.
- Analyzing counterexamples for hyperproperties is complex and challenging.
Purpose of the Study:
- To develop an interactive visualization tool, HyperVis, for analyzing model checking counterexamples of hyperproperties.
- To improve the understanding and debugging of complex system behaviors.
Main Methods:
- Iterative, interdisciplinary design process for visualization solutions.
- Interactive visualizations of models, specifications, and counterexamples.
- Graphical representations, color encoding, enhanced text, and cross-view highlighting.
- Causal analysis of counterexamples to identify contributing values.
- Direct modification of system and specification within the tool.
Main Results:
- HyperVis provides effective communication of model checking results.
- Visualizations facilitate pattern recognition and understanding of related aspects.
- Causal analysis aids in identifying error-causing values.
- Interactive features support iterative refinement of systems and specifications.
- Case studies and expert feedback confirm significant improvement over manual analysis.
Conclusions:
- HyperVis substantially aids analysts in understanding hyperproperty violations.
- The tool offers a valuable improvement over traditional text-based analysis.
- Interactive visualization and causal analysis are key to effective counterexample explanation.
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