Manuscript OpenAI@2026-10-07 · OpenAI.tex · remark · 6a931f8f

Remark: 118-01. Additive hardness and unbounded configuration gaps in bin packing

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Authors: OpenAI. Family 118.

Title: Additive hardness and unbounded configuration gaps in bin packing.

Abstract: We disprove the Modified Integer Round-Up Conjecture for bin packing by constructing instances with arbitrarily large additive gaps between the configuration-LP value and the integral optimum. We also prove that, for every fixed nonnegative integer c, distinguishing instances that fit in B bins from those requiring more than $B+c$ bins is NP-hard. Both results hold with rational item sizes greater than 1/6, so each bin contains at most five items.

This abstract is a catalogue record. It is not a verification and not a premise. It does not close O.1. O.1 stays NOT_CLOSED. No quantum coefficient is admitted. No compilation is asserted.

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