human: Given a node-centered hypergraph: <hypergraph>, where nodes represent papers and hyperedges represent sets of papers co-cited by a source paper.

Details of the hypergraph:
Center node: "counter strategy guided refinement of gr 1 temporal logic specifications"
  Abstract: The reactive synthesis problem is to find a finite-state controller that satisfies a given temporal-logic specification regardless of how its environment behaves. Developing a formal specification is a challenging and tedious task and initial specifications are often unrealizable. In many cases, the source of unrealizability is the lack of adequate assumptions on the environment of the system. In this paper, we consider the problem of automatically correcting an unrealizable specification given in the generalized reactivity (1) fragment of linear temporal logic by adding assumptions on the environment. When a temporal-logic specification is unrealizable, the synthesis algorithm computes a counter-strategy as a witness. Our algorithm then analyzes this counter-strategy and synthesizes a set of candidate environment assumptions that can be used to remove the counter-strategy from the environment's possible behaviors. We demonstrate the applicability of our approach with several case studies.

Connected through hyperedge HE-1 (induced by source paper "the challenges in specifying and explaining synthesized implementations of reactive systems"):
  with members:
    - "bosy an experimentation framework for bounded synthesis"
    - "synthesizing skeletons for reactive systems"
    - "strategy representation by decision trees in reactive synthesis"
    - "reactive synthesis towards output sensitive algorithms"
    - "the 4th reactive synthesis competition syntcomp 2017 benchmarks participants results"
    - "bounded cycle synthesis"
    - "structural synthesis for gxw specifications"
    - "counterexample explanation by learning small strategies in markov decision processes"

Connected through hyperedge HE-2 (induced by source paper "minimal assumptions refinement for gr 1 specifications"):
  with members:
    - "a weakness measure for gr 1 formulae"
    - "interpolation based gr 1 assumptions refinement"
    - "using dynamic analysis to generate disjunctive invariants"
    - "redundancy in logic i cnf propositional formulae"

Connected through hyperedge HE-3 (induced by source paper "verified runtime validation for partially observable hybrid systems"):
  with members:
    - "differential equation axiomatization the impressive power of differential ghosts"
    - "soter programming safe robotics system using runtime assurance"
    - "a complete uniform substitution calculus for differential dynamic logic"
    - "fastrack a modular framework for fast and guaranteed safe motion planning"
    - "formal verification of obstacle avoidance and navigation of ground robots"
    - "robust online monitoring of signal temporal logic"
    - "on line monitoring for temporal logic robustness"

Connected through hyperedge HE-4 (induced by source paper "a weakness measure for gr 1 formulae"):
  with members:
    - "interpolation based gr 1 assumptions refinement"
    - "better quality in synthesis through quantitative objectives"
    - "environment assumptions for synthesis"

Connected through hyperedge HE-5 (induced by source paper "interpolation based gr 1 assumptions refinement"):
  with members:
    - "a theory of formal synthesis via inductive learning"
    - "are there good mistakes a theoretical analysis of cegis"
    - "environment assumptions for synthesis"

Connected through hyperedge HE-6 (induced by source paper "synthesizing a lego forklift controller in gr 1 a case study"):
  with members:
    - "architecture and behavior modeling of cyber physical systems with montiarcautomaton"
    - "parameterized synthesis case study amba ahb"

Connected through hyperedge HE-7 (induced by source paper "synthesizing least limiting guidelines for safety of semi autonomous systems"):
  with members:
    - "maximally permissive controlled system synthesis for modal logic"
    - "environment assumptions for synthesis"
    - "best effort strategies for losing states"

Question: Please tell me which class the center node 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)