Advances in Petri nets 1986, part II on Petri nets: applications and relationships to other models of concurrency
Reduction: a method of proving properties of parallel programs
Communications of the ACM
An empirical study of operating systems errors
SOSP '01 Proceedings of the eighteenth ACM symposium on Operating systems principles
Deriving linearizable fine-grained concurrent objects
Proceedings of the 2008 ACM SIGPLAN conference on Programming language design and implementation
Sketching concurrent data structures
Proceedings of the 2008 ACM SIGPLAN conference on Programming language design and implementation
Inferring locks for atomic sections
Proceedings of the 2008 ACM SIGPLAN conference on Programming language design and implementation
Proceedings of the 4th ACM European conference on Computer systems
Abstraction-guided synthesis of synchronization
Proceedings of the 37th annual ACM SIGPLAN-SIGACT symposium on Principles of programming languages
TACAS'08/ETAPS'08 Proceedings of the Theory and practice of software, 14th international conference on Tools and algorithms for the construction and analysis of systems
Principles of Program Analysis
Principles of Program Analysis
CPACHECKER: a tool for configurable software verification
CAV'11 Proceedings of the 23rd international conference on Computer aided verification
Threader: a constraint-based verifier for multi-threaded programs
CAV'11 Proceedings of the 23rd international conference on Computer aided verification
Solving recursion-free horn clauses over LI+UIF
APLAS'11 Proceedings of the 9th Asian conference on Programming Languages and Systems
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We develop program synthesis techniques that can help programmers fix concurrency-related bugs. We make two new contributions to synthesis for concurrency, the first improving the efficiency of the synthesized code, and the second improving the efficiency of the synthesis procedure itself. The first contribution is to have the synthesis procedure explore a variety of (sequential) semantics-preserving program transformations. Classically, only one such transformation has been considered, namely, the insertion of synchronization primitives (such as locks). Based on common manual bug-fixing techniques used by Linux device-driver developers, we explore additional, more efficient transformations, such as the reordering of independent instructions. The second contribution is to speed up the counterexample-guided removal of concurrency bugs within the synthesis procedure by considering partial-order traces (instead of linear traces) as counterexamples. A partial-order error trace represents a set of linear (interleaved) traces of a concurrent program all of which lead to the same error. By eliminating a partial-order error trace, we eliminate in a single iteration of the synthesis procedure all linearizations of the partial-order trace. We evaluated our techniques on several simplified examples of real concurrency bugs that occurred in Linux device drivers.