# Beyond Solver Verdicts: Generative Reward Models for Autoformalization > Source: > Published: 2026-09-11 16:00:13+00:00 Neurosymbolic systems rely on mathematical solvers to guarantee reasoning correctness, yet solvers are fundamentally blind to whether a formal translation maintains strict reference-equivalence to a designated formalization. We formalize this vulnerability as Verdict-Preserving-Unfaithfulness (VPU):