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Ferhat Erata

Yale University

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#artificial intelligence Preprint Oct 2026

Scaling Lean Theorem Proving for Real-World Code Verification

EasyProver is presented, a Lean proving system built from recursive agents with isolated contexts, asynchronous search, parallel tactic probing, and an elastic elaboration service, and Aegis is introduced, which converts competitive programming problems into much harder verification tasks over real implementations.

Debargha Ganguly, Divya Raghunathan, Dejan Jovanovic et al. · 0 citations
#machine learning Preprint Oct 2026

Verifier-Grounded Agentic RL for Provably Correct Code

Reinforcement learning for code usually rewards passing tests, which a model can do while remaining wrong on the inputs the tests do not cover. A program verifier instead decides whether a program satisfies a formal specification for all inputs. Language models are almost always paired with verifiers at inference time...

George Ma, Yu-Hao Zhang, B. He et al. · 0 citations
Preprint Sep 2026

SWE-Proof: Can Language Models Resolve Real-World Issues with Machine-Checked Proofs?

This work presents Benchproofer, a pipeline that turns a coding task with a known correct patch into a formally verified one, which writes a specification for the new code, summarizes the existing functions that code calls with axioms, and admits an instance only after mechanical and adversarial gates agree.

George Ma, Benjamin Mikek, Hao-Yu Li et al. · 2 citations
#artificial intelligence Review May 2026

Fidelity Probes for Specification-Code Alignment

Fidelity probes are introduced to check a specification against the code and guide its revision, using an observability rule to focus probe questions on behaviour that the modernized system is intended to preserve, including user-visible outputs, changes to stored business data, and interactions with other systems.

Ferhat Erata, Hao Zhou, Jun Huan · 1 citation
#artificial intelligence Preprint Sep 2026

SWE-Proof: Can Language Models Resolve Real-World Issues with Machine-Checked Proofs?

Ensuring the correctness of LLM-generated code is a core challenge for modern software engineering. Benchmarks for agentic code generation check correctness with held-out test suites, which are inherently incomplete and increasingly susceptible to memorization. Formal verification avoids both problems, but existing wor...

George Ma, Benjamin Mikek, Hao-Yu Li et al. · 0 citations
#machine learning Preprint Sep 2026

Beyond Solver Verdicts: Generative Reward Models for Autoformalization

Generative Verification (GenV) is introduced, which distills an offline Z3-equivalence oracle into a reference-free, continuous reference-equivalence score by repurposing the language model's native vocabulary space and theoretically proves that structural, verdict-only verification heuristics are mathematically bounde...

Vikash Singh, Debargha Ganguly, Aman Goel et al. · 0 citations
#artificial intelligence Preprint Aug 2026

Stratified Consistency Distillation for Natural Language Formalization

A fine-tuning-based Stratified Consistency Distillation approach that shows significant and consistent improvements in both Pass@K and the novel Equivalent Logical Similarity metrics, demonstrating the potential of advancing logical translation through consistency distillation.

Zhi-Chao Hou, Ferhat Erata, Joseph Lilien et al. · 2 citations

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