Universal causality graphs for bug detection in concurrent programs
US8769499B2 · kind B2 · utility
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11Claims
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Key dates
| Filing date | Oct 19, 2010 |
| Grant date | Jul 1, 2014 |
| Priority date | — |
| Expiry date | May 1, 2033 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F11/3624
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A system and method for predictive analysis includes generating an execution trace on an instrumented version of source code for a multithreaded computer program. Interleavings which potentially lead to a violation in the program are statically generated by performing a static predictive analysis using a Universal Causality Graph (UCG) to generate alternative interleavings that might lead to an error. The UCG includes a unified happens-before model for the concurrent program and a property being analyzed. The interleavings are symbolically checked to determine errors in the program.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.