{"abstract":"Numeric token budgets count leading zeroes before integer conversion.","category":"HTTP ranges","checks":6,"contract":"Inputs contain only ASCII digits and are nonempty. Reject tokens longer than limit with None; otherwise return integer. Budget counts syntax not numeric magnitude.","evaluation_group":"s3-http_ranges-request-fields","failed_approach":"The partial repair uses return int(digits) if len(digits.lstrip(\"0\"))<=limit else None, which still violates the stated contract.","family":"s3-http_ranges-range-digit-budget-before-conversion","id":"FA-26676","implementations":{"attempt":{"sha256":"7708105e77b993819f5b449e078c4d42d1521151f6abfd8baa9ce262c65aab66","source":"\"\"\"Failure Map reference implementation. Python standard library only.\"\"\"\nimport json\n\nN = 1\nobservations = []\ndef solve(digits, limit):\n    return int(digits) if len(digits.lstrip(\"0\"))<=limit else None\ndef check(label, actual, expected):\n    observations.append({\"check\": label, \"actual\": actual, \"expected\": expected, \"passed\": actual == expected})\ncheck('range-digit-budget-before-conversion fixture 0', solve(\"0\"*(N+1),N), None)\ncheck('range-digit-budget-before-conversion fixture 1', solve(\"0\"*N,N), 0)\ncheck('range-digit-budget-before-conversion fixture 2', solve(\"1\",1), 1)\ncheck('range-digit-budget-before-conversion fixture 3', solve(\"001\",2), None)\ncheck('range-digit-budget-before-conversion fixture 4', solve(\"001\",3), 1)\ncheck('range-digit-budget-before-conversion fixture 5', solve(\"9\",0), None)\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":"1d33d529f48b3b6334c3d748c52375812647f43f7ef120e27af2b4560eee496d","source":"\"\"\"Failure Map reference implementation. Python standard library only.\"\"\"\nimport json\n\nN = 1\nobservations = []\ndef solve(digits, limit):\n    return int(digits) if len(str(int(digits)))<=limit else None\ndef check(label, actual, expected):\n    observations.append({\"check\": label, \"actual\": actual, \"expected\": expected, \"passed\": actual == expected})\ncheck('range-digit-budget-before-conversion fixture 0', solve(\"0\"*(N+1),N), None)\ncheck('range-digit-budget-before-conversion fixture 1', solve(\"0\"*N,N), 0)\ncheck('range-digit-budget-before-conversion fixture 2', solve(\"1\",1), 1)\ncheck('range-digit-budget-before-conversion fixture 3', solve(\"001\",2), None)\ncheck('range-digit-budget-before-conversion fixture 4', solve(\"001\",3), 1)\ncheck('range-digit-budget-before-conversion fixture 5', solve(\"9\",0), None)\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"},"fixed":{"sha256":"2e8db7c6fde411387b5b4adcb4134b234eccaff3d1e1c2be5d692a0d963e29b4","source":"\"\"\"Failure Map reference implementation. Python standard library only.\"\"\"\nimport json\n\nN = 1\nobservations = []\ndef solve(digits, limit):\n    return int(digits) if len(digits)<=limit else None\ndef check(label, actual, expected):\n    observations.append({\"check\": label, \"actual\": actual, \"expected\": expected, \"passed\": actual == expected})\ncheck('range-digit-budget-before-conversion fixture 0', solve(\"0\"*(N+1),N), None)\ncheck('range-digit-budget-before-conversion fixture 1', solve(\"0\"*N,N), 0)\ncheck('range-digit-budget-before-conversion fixture 2', solve(\"1\",1), 1)\ncheck('range-digit-budget-before-conversion fixture 3', solve(\"001\",2), None)\ncheck('range-digit-budget-before-conversion fixture 4', solve(\"001\",3), 1)\ncheck('range-digit-budget-before-conversion fixture 5', solve(\"9\",0), None)\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-digit-budget-before-conversion","generated_at":"2026-09-29T14:41:18.150748+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.","repair":"Apply the bounded decision exactly: return int(digits) if len(digits)<=limit else None","root_cause":"The range-digit-budget-before-conversion decision uses return int(digits) if len(str(int(digits)))<=limit else None.","sha256":"b7b0e2109d82634393c8cb83fc8c05abbd8ca97ab8c7675c0e1c11fda5ddba4f","title":"Numeric token budgets count leading zeroes before integer conversion · case 01","variant":1,"variant_policy":"Five numbered records share a model and may reuse boundary fixtures.","verification":{"attempt":{"elapsed_ms":39.419,"exit_code":1,"observations":[{"actual":0,"check":"range-digit-budget-before-conversion fixture 0","expected":null,"passed":false},{"actual":0,"check":"range-digit-budget-before-conversion fixture 1","expected":0,"passed":true},{"actual":1,"check":"range-digit-budget-before-conversion fixture 2","expected":1,"passed":true},{"actual":1,"check":"range-digit-budget-before-conversion fixture 3","expected":null,"passed":false},{"actual":1,"check":"range-digit-budget-before-conversion fixture 4","expected":1,"passed":true},{"actual":null,"check":"range-digit-budget-before-conversion fixture 5","expected":null,"passed":true}],"passed":false,"stderr":"","stdout":"{\"observations\": [{\"check\": \"range-digit-budget-before-conversion fixture 0\", \"actual\": 0, \"expected\": null, \"passed\": false}, {\"check\": \"range-digit-budget-before-conversion fixture 1\", \"actual\": 0, \"expected\": 0, \"passed\": true}, {\"check\": \"range-digit-budget-before-conversion fixture 2\", \"actual\": 1, \"expected\": 1, \"passed\": true}, {\"check\": \"range-digit-budget-before-conversion fixture 3\", \"actual\": 1, \"expected\": null, \"passed\": false}, {\"check\": \"range-digit-budget-before-conversion fixture 4\", \"actual\": 1, \"expected\": 1, \"passed\": true}, {\"check\": \"range-digit-budget-before-conversion fixture 5\", \"actual\": null, \"expected\": null, \"passed\": true}], \"passed\": false}\n"},"broken":{"elapsed_ms":40.566,"exit_code":1,"observations":[{"actual":0,"check":"range-digit-budget-before-conversion fixture 0","expected":null,"passed":false},{"actual":0,"check":"range-digit-budget-before-conversion fixture 1","expected":0,"passed":true},{"actual":1,"check":"range-digit-budget-before-conversion fixture 2","expected":1,"passed":true},{"actual":1,"check":"range-digit-budget-before-conversion fixture 3","expected":null,"passed":false},{"actual":1,"check":"range-digit-budget-before-conversion fixture 4","expected":1,"passed":true},{"actual":null,"check":"range-digit-budget-before-conversion fixture 5","expected":null,"passed":true}],"passed":false,"stderr":"","stdout":"{\"observations\": [{\"check\": \"range-digit-budget-before-conversion fixture 0\", \"actual\": 0, \"expected\": null, \"passed\": false}, {\"check\": \"range-digit-budget-before-conversion fixture 1\", \"actual\": 0, \"expected\": 0, \"passed\": true}, {\"check\": \"range-digit-budget-before-conversion fixture 2\", \"actual\": 1, \"expected\": 1, \"passed\": true}, {\"check\": \"range-digit-budget-before-conversion fixture 3\", \"actual\": 1, \"expected\": null, \"passed\": false}, {\"check\": \"range-digit-budget-before-conversion fixture 4\", \"actual\": 1, \"expected\": 1, \"passed\": true}, {\"check\": \"range-digit-budget-before-conversion fixture 5\", \"actual\": null, \"expected\": null, \"passed\": true}], \"passed\": false}\n"},"fixed":{"elapsed_ms":36.771,"exit_code":0,"observations":[{"actual":null,"check":"range-digit-budget-before-conversion fixture 0","expected":null,"passed":true},{"actual":0,"check":"range-digit-budget-before-conversion fixture 1","expected":0,"passed":true},{"actual":1,"check":"range-digit-budget-before-conversion fixture 2","expected":1,"passed":true},{"actual":null,"check":"range-digit-budget-before-conversion fixture 3","expected":null,"passed":true},{"actual":1,"check":"range-digit-budget-before-conversion fixture 4","expected":1,"passed":true},{"actual":null,"check":"range-digit-budget-before-conversion fixture 5","expected":null,"passed":true}],"passed":true,"stderr":"","stdout":"{\"observations\": [{\"check\": \"range-digit-budget-before-conversion fixture 0\", \"actual\": null, \"expected\": null, \"passed\": true}, {\"check\": \"range-digit-budget-before-conversion fixture 1\", \"actual\": 0, \"expected\": 0, \"passed\": true}, {\"check\": \"range-digit-budget-before-conversion fixture 2\", \"actual\": 1, \"expected\": 1, \"passed\": true}, {\"check\": \"range-digit-budget-before-conversion fixture 3\", \"actual\": null, \"expected\": null, \"passed\": true}, {\"check\": \"range-digit-budget-before-conversion fixture 4\", \"actual\": 1, \"expected\": 1, \"passed\": true}, {\"check\": \"range-digit-budget-before-conversion fixture 5\", \"actual\": null, \"expected\": null, \"passed\": true}], \"passed\": true}\n"}},"verified":true,"visibility":"public"}