human: Given a hyperedge-centered hypergraph: <hypergraph>, where the center hyperedge is induced by one source paper and its member nodes are the cited papers.

Details of the hypergraph:
Center hyperedge (induced by source paper "reasoning about llvm code using codewalker"):
  Abstract: This paper reports on initial experiments using J Moore's Codewalker to reason about programs compiled to the Low-Level Virtual Machine (LLVM) intermediate form. Previously, we reported on a translator from LLVM to the applicative subset of Common Lisp accepted by the ACL2 theorem prover, producing executable ACL2 formal models, and allowing us to both prove theorems about the translated models as well as validate those models by testing. That translator provided many of the benefits of a pure decompilation into logic approach, but had the disadvantage of not being verified. The availability of Codewalker as of ACL2 7.0 has provided an opportunity to revisit this idea, and employ a more trustworthy decompilation into logic tool. Thus, we have employed the Codewalker method to create an interpreter for a subset of the LLVM instruction set, and have used Codewalker to analyze some simple array-based C programs compiled to LLVM form. We discuss advantages and limitations of the Codewalker-based method compared to the previous method, and provide some challenge problems for future Codewalker development.

Includes members:
  Member "development of a translator from llvm to acl2":
    also connected through other hyperedges:
      - Hyperedge HE-1 (induced by source paper "fix your types")
  Member "acl2 meets the gpu formalizing a cuda based parallelizable all pairs shortest path algorithm in acl2":
    also connected through other hyperedges:
      - Hyperedge HE-2 (induced by source paper "using acl2 in the design of efficient verifiable data structures for high assurance systems")

Question: Please tell me which class the source paper belongs to. The 40 classes are: cs.NA(Numerical Analysis), cs.MM(Multimedia), cs.LO(Logic in Computer Science), cs.CY(Computers and Society), cs.CR(Cryptography and Security), cs.DC(Distributed, Parallel, and Cluster Computing), cs.HC(Human-Computer Interaction), cs.CE(Computational Engineering, Finance, and Science), cs.NI(Networking and Internet Architecture), cs.CC(Computational Complexity), cs.AI(Artificial Intelligence), cs.MA(Multiagent Systems), cs.GL(General Literature), cs.NE(Neural and Evolutionary Computing), cs.SC(Symbolic Computation), cs.AR(Hardware Architecture), cs.CV(Computer Vision and Pattern Recognition), cs.GR(Graphics), cs.ET(Emerging Technologies), cs.SY(Systems and Control), cs.CG(Computational Geometry), cs.OH(Other Computer Science), cs.PL(Programming Languages), cs.SE(Software Engineering), cs.LG(Machine Learning), cs.SD(Sound), cs.SI(Social and Information Networks), cs.RO(Robotics), cs.IT(Information Theory), cs.PF(Performance), cs.CL(Computation and Language), cs.IR(Information Retrieval), cs.MS(Mathematical Software), cs.FL(Formal Languages and Automata Theory), cs.DS(Data Structures and Algorithms), cs.OS(Operating Systems), cs.GT(Computer Science and Game Theory), cs.DB(Databases), cs.DL(Digital Libraries), cs.DM(Discrete Mathematics). Directly output the class name.

gpt: cs.LO(Logic in Computer Science)