UQ-PAC/BASIL
Feb 2025 – Feb 2026
7 Months active
Languages Used
ScalaJava
Technical Skills
Abstract InterpretationFormal MethodsScala DevelopmentCompiler DevelopmentFormal VerificationScala
b-paul
PROFILE
B-paul
Over seven months, Ben Paul engineered core static analysis and abstract interpretation features for the UQ-PAC/BASIL repository, focusing on scalable, precise program analysis. He introduced parallel abstract interpretation with new lattice structures and enhanced interprocedural analysis by extending procedure summaries with interval domains and predicate simplification. Using Scala and Java, Ben stabilized and optimized lattice data structures, improved symbolic reasoning robustness, and addressed soundness issues in the WP Dual Domain. His work included targeted bug fixes, property-based testing, and bit manipulation, resulting in more reliable analysis, maintainable code, and improved performance for complex program constructs in BASIL’s static analysis engine.
Overall Statistics
Feature vs Bugs
75%Features
Repository Contributions
8Total
Bugs
2
Commits
8
Features
6
Lines of code
8,663
Activity Months7
Your Network
9 peopleWork History
February 2026
2 Commits • 2 Features
Feb 1, 2026February 2026 (2026-02) monthly summary for UQ-PAC/BASIL focusing on static analysis improvements in the widening process and the lifting pipeline. Delivered two key features with concrete commits, enhancing soundness, readability, and maintainability. This work supports more reliable analysis results, faster maintenance, and a stronger foundation for future optimizations.
2 Commits • 2 Features
Feb 1, 2026February 2026 (2026-02) monthly summary for UQ-PAC/BASIL focusing on static analysis improvements in the widening process and the lifting pipeline. Delivered two key features with concrete commits, enhancing soundness, readability, and maintainability. This work supports more reliable analysis results, faster maintenance, and a stronger foundation for future optimizations.
February 2026
January 2026
1 Commits
Jan 1, 2026January 2026 monthly summary for UQ-PAC/BASIL: Delivered a critical bug fix and targeted code cleanups to improve the reliability and correctness of the WP Dual Domain analysis. The fix addresses a soundness issue that could cause the domain to incorrectly require a False condition, and includes removal of unnecessary join counting plus refined handling of predicates to strengthen analysis results across the BASIL pipeline. These changes enhance accuracy, reduce risk of false positives/negatives, and improve overall stability of the domain analysis process.
January 2026
1 Commits
Jan 1, 2026January 2026 monthly summary for UQ-PAC/BASIL: Delivered a critical bug fix and targeted code cleanups to improve the reliability and correctness of the WP Dual Domain analysis. The fix addresses a soundness issue that could cause the domain to incorrectly require a False condition, and includes removal of unnecessary join counting plus refined handling of predicates to strengthen analysis results across the BASIL pipeline. These changes enhance accuracy, reduce risk of false positives/negatives, and improve overall stability of the domain analysis process.
September 2025
1 Commits • 1 Features
Sep 1, 2025Concise month-end summary for 2025-09 focused on BASIL work in the UQ-PAC repo, highlighting feature delivery, stability improvements, and business impact.
1 Commits • 1 Features
Sep 1, 2025Concise month-end summary for 2025-09 focused on BASIL work in the UQ-PAC repo, highlighting feature delivery, stability improvements, and business impact.
September 2025
August 2025
1 Commits • 1 Features
Aug 1, 2025Monthly summary for 2025-08 focusing on UQ-PAC/BASIL robustness and BVTerm support. Implemented targeted fixes and feature enhancements to improve reliability of symbolic reasoning workflows and reduce runtime panics in the WpDual domain. The work lays groundwork for handling more complex expressions and prepares BASIL for broader future capabilities.
August 2025
1 Commits • 1 Features
Aug 1, 2025Monthly summary for 2025-08 focusing on UQ-PAC/BASIL robustness and BVTerm support. Implemented targeted fixes and feature enhancements to improve reliability of symbolic reasoning workflows and reduce runtime panics in the WpDual domain. The work lays groundwork for handling more complex expressions and prepares BASIL for broader future capabilities.
July 2025
1 Commits
Jul 1, 2025July 2025: Lattice map/set data structures in BASIL were stabilized with critical bug fixes and efficiency refinements. Addressed bugs surfaced by property tests and refactored empty-set representations to Bottom() for FiniteSet and Top() for DiffSet to improve correctness and performance. Changes captured in commit 159e7055bccf52143548f67efe89ef9a418b6b53 ('Lattice map property tests (#503)'). Result: more reliable lattice operations and a stronger foundation for future performance work.
1 Commits
Jul 1, 2025July 2025: Lattice map/set data structures in BASIL were stabilized with critical bug fixes and efficiency refinements. Addressed bugs surfaced by property tests and refactored empty-set representations to Bottom() for FiniteSet and Top() for DiffSet to improve correctness and performance. Changes captured in commit 159e7055bccf52143548f67efe89ef9a418b6b53 ('Lattice map property tests (#503)'). Result: more reliable lattice operations and a stronger foundation for future performance work.
July 2025
April 2025
1 Commits • 1 Features
Apr 1, 2025April 2025 (UQ-PAC/BASIL): Delivered a major enhancement to BASIL's interprocedural analysis by extending procedure summaries with interval domains, disjunctive completions, and refined predicate simplification. The refactor improves maintainability and scalability, enabling precise analysis of complex code paths while reducing analysis time across larger codebases. Key commit: 500b01ed9ab4c0149362c38d2427a338072c3abd (Function summaries #409). Major bugs fixed: none reported this month. Overall impact: higher precision in static analysis, better early bug detection, and stronger confidence in code quality.
April 2025
1 Commits • 1 Features
Apr 1, 2025April 2025 (UQ-PAC/BASIL): Delivered a major enhancement to BASIL's interprocedural analysis by extending procedure summaries with interval domains, disjunctive completions, and refined predicate simplification. The refactor improves maintainability and scalability, enabling precise analysis of complex code paths while reducing analysis time across larger codebases. Key commit: 500b01ed9ab4c0149362c38d2427a338072c3abd (Function summaries #409). Major bugs fixed: none reported this month. Overall impact: higher precision in static analysis, better early bug detection, and stronger confidence in code quality.
February 2025
1 Commits • 1 Features
Feb 1, 2025February 2025 monthly summary for UQ-PAC/BASIL: Delivered foundational parallel abstract interpretation capabilities by introducing ProductDomain and lattice structures to support parallel analysis with exact joins via DisjunctiveCompletion and BoundedDisjunctiveCompletion. Implemented LatticeSet and LatticeMap to represent sets and maps within lattices. This work establishes the groundwork for scalable, precise static analysis and will enable faster analysis results and improved precision in future iterations. No major bugs fixed this month.
1 Commits • 1 Features
Feb 1, 2025February 2025 monthly summary for UQ-PAC/BASIL: Delivered foundational parallel abstract interpretation capabilities by introducing ProductDomain and lattice structures to support parallel analysis with exact joins via DisjunctiveCompletion and BoundedDisjunctiveCompletion. Implemented LatticeSet and LatticeMap to represent sets and maps within lattices. This work establishes the groundwork for scalable, precise static analysis and will enable faster analysis results and improved precision in future iterations. No major bugs fixed this month.
February 2025
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Quality Metrics
Correctness86.2%
Maintainability81.2%
Architecture81.2%
Performance75.0%
AI Usage22.6%
Skills & Technologies
Programming Languages
JavaScala
Technical Skills
Abstract InterpretationCompiler DesignCompiler DevelopmentData StructuresFormal MethodsFormal VerificationProperty-based testingScalaScala DevelopmentStatic Analysisbit manipulationfunctional programmingprogramming language designsoftware testingstatic analysis
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