{"abstract":"Range header budgets include commas and unit prefix bytes.","category":"HTTP ranges","checks":6,"contract":"ASCII wire field is unit=comma-joined-members. Return within iff total field byte length<=limit.","contract_signature":"unit, members, limit","evaluation_group":"s3-http_ranges-request-fields","failed_approach":"The partial repair uses return len(\",\".join(members))<=limit, which still violates the stated contract.","family":"s3-http_ranges-range-header-complete-budget","id":"FA-26686","implementations":{"attempt":{"sha256":"d9c054701e10e99239d56af0a9f4fb271c00c41e2fb3837bdfd6fcb8b431de98","source":"\"\"\"Failure Map reference implementation. Python standard library only.\"\"\"\nimport json\n\nN = 1\nobservations = []\ndef solve(unit, members, limit):\n    return len(\",\".join(members))<=limit\ndef check(label, actual, expected):\n    observations.append({\"check\": label, \"actual\": actual, \"expected\": expected, \"passed\": actual == expected})\ncheck('range-header-complete-budget fixture 0', solve(\"bytes\",[\"0-\"+str(N)],3), False)\ncheck('range-header-complete-budget fixture 1', solve(\"bytes\",[\"0-1\",\"2-3\"],10), False)\ncheck('range-header-complete-budget fixture 2', solve(\"bytes\",[\"0-1\"],9), True)\ncheck('range-header-complete-budget fixture 3', solve(\"bytes\",[],6), True)\ncheck('range-header-complete-budget fixture 4', solve(\"bytes\",[],5), False)\ncheck('range-header-complete-budget fixture 5', solve(\"x\",[\"a\"],3), True)\nprint(json.dumps({\"observations\": observations, \"passed\": all(x[\"passed\"] for x in observations)}, ensure_ascii=False))\nraise SystemExit(0 if all(x[\"passed\"] for x in observations) else 1)\n"},"broken":{"sha256":"dffc46d76f3d1d0e9d66f5e2d076facfda56590417776fb71722f590e6c3c6aa","source":"\"\"\"Failure Map reference implementation. Python standard library only.\"\"\"\nimport json\n\nN = 1\nobservations = []\ndef solve(unit, members, limit):\n    return sum(map(len,members))<=limit\ndef check(label, actual, expected):\n    observations.append({\"check\": label, \"actual\": actual, \"expected\": expected, \"passed\": actual == expected})\ncheck('range-header-complete-budget fixture 0', solve(\"bytes\",[\"0-\"+str(N)],3), False)\ncheck('range-header-complete-budget fixture 1', solve(\"bytes\",[\"0-1\",\"2-3\"],10), False)\ncheck('range-header-complete-budget fixture 2', solve(\"bytes\",[\"0-1\"],9), True)\ncheck('range-header-complete-budget fixture 3', solve(\"bytes\",[],6), True)\ncheck('range-header-complete-budget fixture 4', solve(\"bytes\",[],5), False)\ncheck('range-header-complete-budget fixture 5', solve(\"x\",[\"a\"],3), True)\nprint(json.dumps({\"observations\": observations, \"passed\": all(x[\"passed\"] for x in observations)}, ensure_ascii=False))\nraise SystemExit(0 if all(x[\"passed\"] for x in observations) else 1)\n"}},"limitations":"Deterministic simplified range service, with stipulated local policies and already parsed trusted inputs; not a complete HTTP implementation. This reproducer isolates one failure mechanism. Results cover the supplied fixtures. Variants within a family share a test contract and should remain grouped when constructing evaluation splits. Related mechanisms with a shared evaluation_group must also remain together; these controlled models are not independent production incidents.","method":"Deterministic executable model with adversarial boundary fixtures.","provenance":{"created_by":"Failure Map","dependencies":"Python standard library","family":"s3-http_ranges-range-header-complete-budget","generated_at":"2026-09-29T14:41:18.188915+00:00","license":"CC0-1.0","python":"3.12.14","seed":1,"split":"open-access"},"relevance":"Range responses combine representation identity, conditional requests, framing, and partial-object state.","root_cause":"The range-header-complete-budget decision uses return sum(map(len,members))<=limit.","sha256":"f05a741903fb9f423d943c00237bbdca8048de00fd98c1b3b5b5558c2c152899","title":"Range header budgets include commas and unit prefix bytes · case 01","variant":1,"variant_policy":"Five numbered records share a model and may reuse boundary fixtures.","verified":true,"visibility":"public","verification":{"attempt":{"elapsed_ms":39.988,"exit_code":1,"observations":[{"actual":true,"check":"range-header-complete-budget fixture 0","expected":false,"passed":false},{"actual":true,"check":"range-header-complete-budget fixture 1","expected":false,"passed":false},{"actual":true,"check":"range-header-complete-budget fixture 2","expected":true,"passed":true},{"actual":true,"check":"range-header-complete-budget fixture 3","expected":true,"passed":true},{"actual":true,"check":"range-header-complete-budget fixture 4","expected":false,"passed":false},{"actual":true,"check":"range-header-complete-budget fixture 5","expected":true,"passed":true}],"passed":false,"stderr":"","stdout":"{\"observations\": [{\"check\": \"range-header-complete-budget fixture 0\", \"actual\": true, \"expected\": false, \"passed\": false}, {\"check\": \"range-header-complete-budget fixture 1\", \"actual\": true, \"expected\": false, \"passed\": false}, {\"check\": \"range-header-complete-budget fixture 2\", \"actual\": true, \"expected\": true, \"passed\": true}, {\"check\": \"range-header-complete-budget fixture 3\", \"actual\": true, \"expected\": true, \"passed\": true}, {\"check\": \"range-header-complete-budget fixture 4\", \"actual\": true, \"expected\": false, \"passed\": false}, {\"check\": \"range-header-complete-budget fixture 5\", \"actual\": true, \"expected\": true, \"passed\": true}], \"passed\": false}\n"},"broken":{"elapsed_ms":40.325,"exit_code":1,"observations":[{"actual":true,"check":"range-header-complete-budget fixture 0","expected":false,"passed":false},{"actual":true,"check":"range-header-complete-budget fixture 1","expected":false,"passed":false},{"actual":true,"check":"range-header-complete-budget fixture 2","expected":true,"passed":true},{"actual":true,"check":"range-header-complete-budget fixture 3","expected":true,"passed":true},{"actual":true,"check":"range-header-complete-budget fixture 4","expected":false,"passed":false},{"actual":true,"check":"range-header-complete-budget fixture 5","expected":true,"passed":true}],"passed":false,"stderr":"","stdout":"{\"observations\": [{\"check\": \"range-header-complete-budget fixture 0\", \"actual\": true, \"expected\": false, \"passed\": false}, {\"check\": \"range-header-complete-budget fixture 1\", \"actual\": true, \"expected\": false, \"passed\": false}, {\"check\": \"range-header-complete-budget fixture 2\", \"actual\": true, \"expected\": true, \"passed\": true}, {\"check\": \"range-header-complete-budget fixture 3\", \"actual\": true, \"expected\": true, \"passed\": true}, {\"check\": \"range-header-complete-budget fixture 4\", \"actual\": true, \"expected\": false, \"passed\": false}, {\"check\": \"range-header-complete-budget fixture 5\", \"actual\": true, \"expected\": true, \"passed\": true}], \"passed\": false}\n"}},"member_only":{"stages":["fixed"],"fields":["implementations.fixed","verification.fixed","harness","repair"],"note":"The verified repair, its recorded checks, the repair description, and the scoring harness are available to members."}}