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Human Attention During Localization of Memory Bugs in C P...
[Submitted on 31 May 2025 (v1), last revised 17 Jul 2026 (this v · 2025-06-01 · via cs updates on arXiv.org

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Abstract:This paper presents a study of human visual attention during localization of memory bugs in C. Human visual attention refers to the mechanical processes by which we selectively process and prioritize information. Visual attention is important to study because it is central to what information people (who are sighted) use to solve a particular problem. Meanwhile, memory bugs are among the most common types of bugs in C programs that manifest as a variety of program faults. In this paper, we study human visual attention while people attempt to locate memory bugs in code. We recruit 21 programmers to locate between one and eight memory bugs in three C programs for 1.5-2 hours each. In total we collected observations of 31 hours of programmer effort. The bugs in our study cover memory leaks, overflows, and double frees, which are among the most common memory bugs. We analyze the task outcomes in terms of success rate and related factors, patterns of visual attention overall such as what lines and functions are read, and finally we explore differences of visual attention patterns during success versus failure cases.

Submission history

From: Emory Smith [view email]
[v1] Sat, 31 May 2025 19:56:16 UTC (1,927 KB)
[v2] Wed, 10 Dec 2025 20:52:55 UTC (2,024 KB)
[v3] Fri, 17 Jul 2026 14:58:00 UTC (688 KB)