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    "story_id": "mp-2026-08-14-013",
    "source_story_id": "tmp-story-formal-specification-generation",
    "edition_id": "mp-2026-08-14-morning-0036",
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    "headline": "The Proof Failed, but the Specification Might Not Have",
    "slug": "the-proof-failed-but-the-specification-might-not-have",
    "dek": "Coins evaluates generated Rocq specifications on trusted concrete cases so proof difficulty is less easily mistaken for specification quality.",
    "summary": "Coins evaluates generated Rocq specifications on trusted concrete cases so proof difficulty is less easily mistaken for specification quality.",
    "body_text": "Formal-specification benchmarks often require proving an implementation conforms or showing two specifications are semantically equivalent, which can turn a hard proof into an ambiguous model failure. Coins instead instantiates candidate specifications on curated HumanEval cases and generates concrete proof obligations whose successful discharge is strong evidence. The large-scale study finds specification synthesis remains difficult and model scaling alone does not resolve the measurement problem. The framework improves evaluation fidelity; it does not certify arbitrary generated specifications.",
    "why_it_matters": "Coins evaluates generated Rocq specifications on trusted concrete cases so proof difficulty is less easily mistaken for specification quality.",
    "limitations": [
      "The large-scale study finds specification synthesis remains difficult and model scaling alone does not resolve the measurement problem.",
      "The framework improves evaluation fidelity; it does not certify arbitrary generated specifications."
    ],
    "importance": 8,
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    "first_published_at": "2026-08-14T09:00:00.000-04:00",
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        "text": "Coins evaluates generated Rocq specifications on trusted concrete cases so proof difficulty is less easily mistaken for specification quality.",
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        "qualification": "The large-scale study finds specification synthesis remains difficult and model scaling alone does not resolve the measurement problem."
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    "tags": [
      "formal methods",
      "Rocq",
      "program specifications",
      "evaluation"
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  "sources": [
    {
      "source_id": "source-2026-08-14-013",
      "title": "arXiv preprint 2608.13077",
      "publisher": "arXiv",
      "url": "https://arxiv.org/abs/2608.13077",
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      "published_at": "2026-08-13T06:45:18.000-04:00",
      "accessed_at": "2026-08-14T08:27:00.000-04:00",
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  "publisher": {
    "name": "The Machine Press",
    "url": "https://themachinepress.com",
    "description": "A daily newspaper for the age of artificial intelligence."
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  "cite_this_report": {
    "title": "The Proof Failed, but the Specification Might Not Have",
    "publisher": "The Machine Press",
    "published_at": "2026-08-14T09:00:00.000-04:00",
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