{"abstract":"Read progress resets idle deadline without extending total deadline.","category":"Connection lifecycle","checks":4,"contract":"Bounded offline decision model: read progress resets idle deadline without extending total deadline. Inputs are already validated protocol fields; the explicit fixtures define the supported policy, not a complete protocol implementation.","contract_signature":"now, idle, total","evaluation_group":"xh-read-progress-resets-idle-deadline-without-extending-total-deadline","failed_approach":"The attempted repair uses `total` and still violates a separate fixture.","family":"xh-read-progress-resets-idle-deadline-without-extending-total-deadline","id":"FA-7771","implementations":{"attempt":{"sha256":"f64b99b133a4171f5f60784b752fd99aaca7649d8776b920842ef773d3875fa7","source":"\"\"\"Failure Map reference implementation. Python standard library only.\"\"\"\nimport json\nimport ipaddress\nimport re\nfrom urllib.parse import urlsplit, urljoin\nN = 1\nobservations = []\ndef solve(now, idle, total):\n    return total\ndef check(label, actual, expected):\n    observations.append({\"check\": label, \"actual\": actual, \"expected\": expected, \"passed\": actual == expected})\n_fixtures = [\"check('fixture 1', solve(10, 5, 100), 15)\", \"check('fixture 2', solve(98, 5, 100), 100)\", \"check('fixture 3', solve(100, 0, 100), 100)\", \"check('fixture 4', solve(0, 1, 5), 1)\"]\nfor _line in _fixtures[N % len(_fixtures):] + _fixtures[:N % len(_fixtures)]:\n    exec(_line)\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":"36f8920ee104bb7b8e31b2885a4a61e793a5e65e94c42a046bf690939e72ea83","source":"\"\"\"Failure Map reference implementation. Python standard library only.\"\"\"\nimport json\nimport ipaddress\nimport re\nfrom urllib.parse import urlsplit, urljoin\nN = 1\nobservations = []\ndef solve(now, idle, total):\n    return now+idle\ndef check(label, actual, expected):\n    observations.append({\"check\": label, \"actual\": actual, \"expected\": expected, \"passed\": actual == expected})\n_fixtures = [\"check('fixture 1', solve(10, 5, 100), 15)\", \"check('fixture 2', solve(98, 5, 100), 100)\", \"check('fixture 3', solve(100, 0, 100), 100)\", \"check('fixture 4', solve(0, 1, 5), 1)\"]\nfor _line in _fixtures[N % len(_fixtures):] + _fixtures[:N % len(_fixtures)]:\n    exec(_line)\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":"Bounded deterministic policy model over validated inputs; not a complete protocol stack or an interoperability claim. The five variants rotate the same explicit fixture set. 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":"xh-read-progress-resets-idle-deadline-without-extending-total-deadline","generated_at":"2026-09-29T14:38:15.129738+00:00","license":"CC0-1.0","python":"3.12.14","seed":1,"split":"open-access"},"relevance":"This deterministic connection lifecycle model isolates the read-progress-resets-idle-deadline-without-extending-total-deadline policy at a network component boundary.","root_cause":"The faulty implementation uses `now+idle` for the read-progress-resets-idle-deadline-without-extending-total-deadline decision.","sha256":"4c1c4db96ded44eb5f5c01a148f943edbab0bbaf84dc53852922bd442f63518b","title":"Read progress resets idle deadline without extending total deadline · 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":42.888,"exit_code":1,"observations":[{"actual":100,"check":"fixture 2","expected":100,"passed":true},{"actual":100,"check":"fixture 3","expected":100,"passed":true},{"actual":5,"check":"fixture 4","expected":1,"passed":false},{"actual":100,"check":"fixture 1","expected":15,"passed":false}],"passed":false,"stderr":"","stdout":"{\"observations\": [{\"check\": \"fixture 2\", \"actual\": 100, \"expected\": 100, \"passed\": true}, {\"check\": \"fixture 3\", \"actual\": 100, \"expected\": 100, \"passed\": true}, {\"check\": \"fixture 4\", \"actual\": 5, \"expected\": 1, \"passed\": false}, {\"check\": \"fixture 1\", \"actual\": 100, \"expected\": 15, \"passed\": false}], \"passed\": false}\n"},"broken":{"elapsed_ms":42.294,"exit_code":1,"observations":[{"actual":103,"check":"fixture 2","expected":100,"passed":false},{"actual":100,"check":"fixture 3","expected":100,"passed":true},{"actual":1,"check":"fixture 4","expected":1,"passed":true},{"actual":15,"check":"fixture 1","expected":15,"passed":true}],"passed":false,"stderr":"","stdout":"{\"observations\": [{\"check\": \"fixture 2\", \"actual\": 103, \"expected\": 100, \"passed\": false}, {\"check\": \"fixture 3\", \"actual\": 100, \"expected\": 100, \"passed\": true}, {\"check\": \"fixture 4\", \"actual\": 1, \"expected\": 1, \"passed\": true}, {\"check\": \"fixture 1\", \"actual\": 15, \"expected\": 15, \"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."}}