arXiv AI By Zhiyuan Yan, Xiaofeng Zhou, Ziyue Zheng, Ziyi Yang, Wenbin Che, Wei Zhang, Yangdi Lyu, Hongce Zhang

NeuroAbs: A Neuro-Symbolic RTL Abstraction Framework for Property Checking Acceleration

Read the original on arXiv AI →

NeuroAbs is a neuro‑symbolic framework designed to accelerate property checking in hardware verification by abstracting RTL designs. It employs large language model (LLM) assisted analysis to select signals for abstraction and combines LLM‑based abstraction with an AST‑based symbolic RTL representation to produce sound abstractions verified via SMT solving. When an abstraction is too coarse, NeuroAbs uses counterexample‑guided refinement (CEGAR) to iteratively improve the model, leading to significant efficiency gains across various verification tasks.

Machine-generated by The Flow from the publisher's headline and feed description — not written or checked by a human. The full article lives at arXiv AI.

arXiv AI
Aug 20

Coverage-Driven RTL Assertion Generation with Formal Exploration and Neuro-Symbolic Refinement

The paper introduces NeuroAssertion, a coverage-driven framework for generating RTL assertions that integrates formal trace generation, syntax-guided synthesis, and a two-step large language model (LLM) refinement process. It transforms hard-to-reach control-flow conditions into formal reachability goals, uses model checking to produce diverse traces, and mines initial assertions via SyGuS. The refinement stage employs one LLM to propose candidate assertions for uncovered regions and a second LLM to generate repair grammars that guide symbolic synthesis, resulting in roughly twice as many assertions and higher mutation coverage compared to traditional methods.

By Zhiyuan Yan, Ziyue Zheng, Hongce Zhang