{"abstract":"Http2 goaway retry only streams above last processed id.","category":"Multiplexed protocols","checks":4,"contract":"Given streams, last, http2 goaway retry only streams above last processed id. Return the protocol decision or transformed value; fields are validated and fixtures state boundary outcomes.","evaluation_group":"xh-http2-goaway-retry-only-streams-above-last-processed-id","failed_approach":"The attempted repair uses `[s for s,local,replayable in streams if s > last]` and still violates a separate fixture.","family":"xh-http2-goaway-retry-only-streams-above-last-processed-id","id":"FA-7526","implementations":{"attempt":{"sha256":"b269213990b69a369ce598e6ec02733edbde225f4e8d657965310e994ef70d64","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(streams, last):\n    return [s for s,local,replayable in streams if s > last]\ndef check(label, actual, expected):\n    observations.append({\"check\": label, \"actual\": actual, \"expected\": expected, \"passed\": actual == expected})\n_fixtures = [\"check('fixture 1', solve([(3, True, True), (5, True, True)], 3), [5])\", \"check('fixture 2', solve([(5, False, True), (7, True, False)], 3), [])\", \"check('fixture 3', solve([], 0), [])\", \"check('fixture 4', solve([(1, True, True)], 0), [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":"f5f21ac75d9245e7cd01e050187cbb6bd2e764ded085b72642a7d8413d994e62","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(streams, last):\n    return [s for s,local,replayable in streams if s >= last and local and replayable]\ndef check(label, actual, expected):\n    observations.append({\"check\": label, \"actual\": actual, \"expected\": expected, \"passed\": actual == expected})\n_fixtures = [\"check('fixture 1', solve([(3, True, True), (5, True, True)], 3), [5])\", \"check('fixture 2', solve([(5, False, True), (7, True, False)], 3), [])\", \"check('fixture 3', solve([], 0), [])\", \"check('fixture 4', solve([(1, True, True)], 0), [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"},"fixed":{"sha256":"acec209995bbae514b9fe25566a240bf27f9ef98afb15cf4c6e19d545a94e2c1","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(streams, last):\n    return [s for s,local,replayable in streams if s > last and local and replayable]\ndef check(label, actual, expected):\n    observations.append({\"check\": label, \"actual\": actual, \"expected\": expected, \"passed\": actual == expected})\n_fixtures = [\"check('fixture 1', solve([(3, True, True), (5, True, True)], 3), [5])\", \"check('fixture 2', solve([(5, False, True), (7, True, False)], 3), [])\", \"check('fixture 3', solve([], 0), [])\", \"check('fixture 4', solve([(1, True, True)], 0), [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-http2-goaway-retry-only-streams-above-last-processed-id","generated_at":"2026-09-29T14:38:12.908833+00:00","license":"CC0-1.0","python":"3.12.14","seed":1,"split":"open-access"},"relevance":"This deterministic multiplexed protocols model isolates the http2-goaway-retry-only-streams-above-last-processed-id policy at a network component boundary.","repair":"Apply the explicit http2-goaway-retry-only-streams-above-last-processed-id contract, including the tested boundary and negative cases.","root_cause":"The faulty implementation uses `[s for s,local,replayable in streams if s >= last and local and replayable]` for the http2-goaway-retry-only-streams-above-last-processed-id decision.","sha256":"c2558fb4d20a26aa010b94656e083cf662c60b1e636205c7eb5b93d1dc518b49","title":"Http2 goaway retry only streams above last processed id · case 01","variant":1,"variant_policy":"Five numbered records share a model and may reuse boundary fixtures.","verification":{"attempt":{"elapsed_ms":36.432,"exit_code":1,"observations":[{"actual":[5,7],"check":"fixture 2","expected":[],"passed":false},{"actual":[],"check":"fixture 3","expected":[],"passed":true},{"actual":[1],"check":"fixture 4","expected":[1],"passed":true},{"actual":[5],"check":"fixture 1","expected":[5],"passed":true}],"passed":false,"stderr":"","stdout":"{\"observations\": [{\"check\": \"fixture 2\", \"actual\": [5, 7], \"expected\": [], \"passed\": false}, {\"check\": \"fixture 3\", \"actual\": [], \"expected\": [], \"passed\": true}, {\"check\": \"fixture 4\", \"actual\": [1], \"expected\": [1], \"passed\": true}, {\"check\": \"fixture 1\", \"actual\": [5], \"expected\": [5], \"passed\": true}], \"passed\": false}\n"},"broken":{"elapsed_ms":37.382,"exit_code":1,"observations":[{"actual":[],"check":"fixture 2","expected":[],"passed":true},{"actual":[],"check":"fixture 3","expected":[],"passed":true},{"actual":[1],"check":"fixture 4","expected":[1],"passed":true},{"actual":[3,5],"check":"fixture 1","expected":[5],"passed":false}],"passed":false,"stderr":"","stdout":"{\"observations\": [{\"check\": \"fixture 2\", \"actual\": [], \"expected\": [], \"passed\": true}, {\"check\": \"fixture 3\", \"actual\": [], \"expected\": [], \"passed\": true}, {\"check\": \"fixture 4\", \"actual\": [1], \"expected\": [1], \"passed\": true}, {\"check\": \"fixture 1\", \"actual\": [3, 5], \"expected\": [5], \"passed\": false}], \"passed\": false}\n"},"fixed":{"elapsed_ms":40.31,"exit_code":0,"observations":[{"actual":[],"check":"fixture 2","expected":[],"passed":true},{"actual":[],"check":"fixture 3","expected":[],"passed":true},{"actual":[1],"check":"fixture 4","expected":[1],"passed":true},{"actual":[5],"check":"fixture 1","expected":[5],"passed":true}],"passed":true,"stderr":"","stdout":"{\"observations\": [{\"check\": \"fixture 2\", \"actual\": [], \"expected\": [], \"passed\": true}, {\"check\": \"fixture 3\", \"actual\": [], \"expected\": [], \"passed\": true}, {\"check\": \"fixture 4\", \"actual\": [1], \"expected\": [1], \"passed\": true}, {\"check\": \"fixture 1\", \"actual\": [5], \"expected\": [5], \"passed\": true}], \"passed\": true}\n"}},"verified":true,"visibility":"public"}