{"abstract":"An amendment retroactively deletes executed units.","category":"Auction allocation rules","checks":10,"contract":"A single auction order amendment tracks filled units, original queue stamp and an incoming replacement. Price change or size increase loses queue priority; reducing total size cannot erase existing fills. A cancel acknowledgment terminates remaining quantity. Integer stamps and quantities are nonnegative. Named decision filled-floor: Clamp accepted total to filled quantity, not the old requested total.","evaluation_group":"s3-auction-amendment-priority","failed_approach":"The attempted repair uses x[\"total\"] if x[\"new_total\"]x[\"total\"] else x[\"stamp\"]\n v1 = x[\"now\"] if x[\"new_price\"]!=x[\"old_price\"] else x[\"stamp\"]\n v2 = x[\"total\"] if x[\"new_total\"]x[\"total\"] else x[\"stamp\"]\n v1 = x[\"now\"] if x[\"new_price\"]!=x[\"old_price\"] else x[\"stamp\"]\n v2 = x[\"new_total\"]\n v3 = max(0,x[\"new_total\"]-x[\"filled\"])\n v4 = 0 if x[\"cancel\"] and x[\"ack\"] else max(0,x[\"total\"]-x[\"filled\"])\n v5 = x[\"expected\"]==x[\"revision\"]\n v6 = x[\"old_lot\"]==x[\"new_lot\"]\n v7 = x[\"old_owner\"]==x[\"new_owner\"]\n v8 = not x[\"frozen\"] or (x[\"new_price\"]==x[\"old_price\"] and x[\"new_total\"]<=x[\"total\"])\n v9 = x[\"revision\"] if x[\"request_id\"]==x[\"last_id\"] else x[\"revision\"]+1\n return {'increase-priority':v0,'price-priority':v1,'filled-floor':v2,'remaining-recalculation':v3,'cancel-ack-gate':v4,'revision-compare':v5,'lot-immutability':v6,'owner-immutability':v7,'freeze-restriction':v8,'request-replay':v9}\ndef check(label, actual, expected):\n observations.append({\"check\": label, \"actual\": actual, \"expected\": expected, \"passed\": actual == expected})\nfixtures = [('below executed size', {'old_price': 10, 'new_price': 10, 'total': 8, 'new_total': 2, 'filled': 3, 'stamp': 1, 'now': 8, 'cancel': False, 'ack': False, 'revision': 2, 'expected': 2, 'old_lot': 'A', 'new_lot': 'A', 'old_owner': 'a', 'new_owner': 'a', 'frozen': False, 'held': 8, 'request_id': 'r2', 'last_id': 'r1'}, [3, 6, 9, 12, 15]), ('lower price / below executed size', {'old_price': 10, 'new_price': 8, 'total': 8, 'new_total': 2, 'filled': 3, 'stamp': 1, 'now': 8, 'cancel': False, 'ack': False, 'revision': 2, 'expected': 2, 'old_lot': 'A', 'new_lot': 'A', 'old_owner': 'a', 'new_owner': 'a', 'frozen': False, 'held': 8, 'request_id': 'r2', 'last_id': 'r1'}, [3, 6, 9, 12, 15]), ('normal contract', {'old_price': 10, 'new_price': 10, 'total': 8, 'new_total': 6, 'filled': 3, 'stamp': 1, 'now': 8, 'cancel': False, 'ack': False, 'revision': 2, 'expected': 2, 'old_lot': 'A', 'new_lot': 'A', 'old_owner': 'a', 'new_owner': 'a', 'frozen': False, 'held': 8, 'request_id': 'r2', 'last_id': 'r1'}, [6, 12, 18, 24, 30]), ('lower price', {'old_price': 10, 'new_price': 8, 'total': 8, 'new_total': 6, 'filled': 3, 'stamp': 1, 'now': 8, 'cancel': False, 'ack': False, 'revision': 2, 'expected': 2, 'old_lot': 'A', 'new_lot': 'A', 'old_owner': 'a', 'new_owner': 'a', 'frozen': False, 'held': 8, 'request_id': 'r2', 'last_id': 'r1'}, [6, 12, 18, 24, 30]), ('unrelated acknowledgment', {'old_price': 10, 'new_price': 10, 'total': 8, 'new_total': 6, 'filled': 3, 'stamp': 1, 'now': 8, 'cancel': False, 'ack': True, 'revision': 2, 'expected': 2, 'old_lot': 'A', 'new_lot': 'A', 'old_owner': 'a', 'new_owner': 'a', 'frozen': False, 'held': 8, 'request_id': 'r2', 'last_id': 'r1'}, [6, 12, 18, 24, 30]), ('future revision', {'old_price': 10, 'new_price': 10, 'total': 8, 'new_total': 6, 'filled': 3, 'stamp': 1, 'now': 8, 'cancel': False, 'ack': False, 'revision': 2, 'expected': 3, 'old_lot': 'A', 'new_lot': 'A', 'old_owner': 'a', 'new_owner': 'a', 'frozen': False, 'held': 8, 'request_id': 'r2', 'last_id': 'r1'}, [6, 12, 18, 24, 30]), ('no collateral held', {'old_price': 10, 'new_price': 10, 'total': 8, 'new_total': 6, 'filled': 3, 'stamp': 1, 'now': 8, 'cancel': False, 'ack': False, 'revision': 2, 'expected': 2, 'old_lot': 'A', 'new_lot': 'A', 'old_owner': 'a', 'new_owner': 'a', 'frozen': False, 'held': 0, 'request_id': 'r2', 'last_id': 'r1'}, [6, 12, 18, 24, 30]), ('price replacement', {'old_price': 10, 'new_price': 12, 'total': 8, 'new_total': 6, 'filled': 3, 'stamp': 1, 'now': 8, 'cancel': False, 'ack': False, 'revision': 2, 'expected': 2, 'old_lot': 'A', 'new_lot': 'A', 'old_owner': 'a', 'new_owner': 'a', 'frozen': False, 'held': 8, 'request_id': 'r2', 'last_id': 'r1'}, [6, 12, 18, 24, 30]), ('size increase', {'old_price': 10, 'new_price': 10, 'total': 8, 'new_total': 12, 'filled': 3, 'stamp': 1, 'now': 8, 'cancel': False, 'ack': False, 'revision': 2, 'expected': 2, 'old_lot': 'A', 'new_lot': 'A', 'old_owner': 'a', 'new_owner': 'a', 'frozen': False, 'held': 8, 'request_id': 'r2', 'last_id': 'r1'}, [12, 24, 36, 48, 60]), ('acknowledged cancel', {'old_price': 10, 'new_price': 10, 'total': 8, 'new_total': 6, 'filled': 3, 'stamp': 1, 'now': 8, 'cancel': True, 'ack': True, 'revision': 2, 'expected': 2, 'old_lot': 'A', 'new_lot': 'A', 'old_owner': 'a', 'new_owner': 'a', 'frozen': False, 'held': 8, 'request_id': 'r2', 'last_id': 'r1'}, [6, 12, 18, 24, 30])]\ndef vary(value):\n if type(value) is int: return value*N\n if isinstance(value,list): return [vary(v) for v in value]\n if isinstance(value,dict): return {k:(v if k in ['count', 'delivery_index', 'disputed', 'maximum_set', 'minimum_set', 'stage', 'threshold', 'waived'] else vary(v)) for k,v in value.items()}\n return value\nfor label, request, expected in fixtures:\n check(label, solve(vary(request))['filled-floor'], expected[N-1])\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":"37a11f623003c18fb92d17399a384acf83df28ba2dfd541408e529e63df722c1","source":"\"\"\"Failure Map reference implementation. Python standard library only.\"\"\"\nimport json\n\nN = 1\nobservations = []\ndef solve(x):\n v0 = x[\"now\"] if x[\"new_total\"]>x[\"total\"] else x[\"stamp\"]\n v1 = x[\"now\"] if x[\"new_price\"]!=x[\"old_price\"] else x[\"stamp\"]\n v2 = max(x[\"filled\"],x[\"new_total\"])\n v3 = max(0,x[\"new_total\"]-x[\"filled\"])\n v4 = 0 if x[\"cancel\"] and x[\"ack\"] else max(0,x[\"total\"]-x[\"filled\"])\n v5 = x[\"expected\"]==x[\"revision\"]\n v6 = x[\"old_lot\"]==x[\"new_lot\"]\n v7 = x[\"old_owner\"]==x[\"new_owner\"]\n v8 = not x[\"frozen\"] or (x[\"new_price\"]==x[\"old_price\"] and x[\"new_total\"]<=x[\"total\"])\n v9 = x[\"revision\"] if x[\"request_id\"]==x[\"last_id\"] else x[\"revision\"]+1\n return {'increase-priority':v0,'price-priority':v1,'filled-floor':v2,'remaining-recalculation':v3,'cancel-ack-gate':v4,'revision-compare':v5,'lot-immutability':v6,'owner-immutability':v7,'freeze-restriction':v8,'request-replay':v9}\ndef check(label, actual, expected):\n observations.append({\"check\": label, \"actual\": actual, \"expected\": expected, \"passed\": actual == expected})\nfixtures = [('below executed size', {'old_price': 10, 'new_price': 10, 'total': 8, 'new_total': 2, 'filled': 3, 'stamp': 1, 'now': 8, 'cancel': False, 'ack': False, 'revision': 2, 'expected': 2, 'old_lot': 'A', 'new_lot': 'A', 'old_owner': 'a', 'new_owner': 'a', 'frozen': False, 'held': 8, 'request_id': 'r2', 'last_id': 'r1'}, [3, 6, 9, 12, 15]), ('lower price / below executed size', {'old_price': 10, 'new_price': 8, 'total': 8, 'new_total': 2, 'filled': 3, 'stamp': 1, 'now': 8, 'cancel': False, 'ack': False, 'revision': 2, 'expected': 2, 'old_lot': 'A', 'new_lot': 'A', 'old_owner': 'a', 'new_owner': 'a', 'frozen': False, 'held': 8, 'request_id': 'r2', 'last_id': 'r1'}, [3, 6, 9, 12, 15]), ('normal contract', {'old_price': 10, 'new_price': 10, 'total': 8, 'new_total': 6, 'filled': 3, 'stamp': 1, 'now': 8, 'cancel': False, 'ack': False, 'revision': 2, 'expected': 2, 'old_lot': 'A', 'new_lot': 'A', 'old_owner': 'a', 'new_owner': 'a', 'frozen': False, 'held': 8, 'request_id': 'r2', 'last_id': 'r1'}, [6, 12, 18, 24, 30]), ('lower price', {'old_price': 10, 'new_price': 8, 'total': 8, 'new_total': 6, 'filled': 3, 'stamp': 1, 'now': 8, 'cancel': False, 'ack': False, 'revision': 2, 'expected': 2, 'old_lot': 'A', 'new_lot': 'A', 'old_owner': 'a', 'new_owner': 'a', 'frozen': False, 'held': 8, 'request_id': 'r2', 'last_id': 'r1'}, [6, 12, 18, 24, 30]), ('unrelated acknowledgment', {'old_price': 10, 'new_price': 10, 'total': 8, 'new_total': 6, 'filled': 3, 'stamp': 1, 'now': 8, 'cancel': False, 'ack': True, 'revision': 2, 'expected': 2, 'old_lot': 'A', 'new_lot': 'A', 'old_owner': 'a', 'new_owner': 'a', 'frozen': False, 'held': 8, 'request_id': 'r2', 'last_id': 'r1'}, [6, 12, 18, 24, 30]), ('future revision', {'old_price': 10, 'new_price': 10, 'total': 8, 'new_total': 6, 'filled': 3, 'stamp': 1, 'now': 8, 'cancel': False, 'ack': False, 'revision': 2, 'expected': 3, 'old_lot': 'A', 'new_lot': 'A', 'old_owner': 'a', 'new_owner': 'a', 'frozen': False, 'held': 8, 'request_id': 'r2', 'last_id': 'r1'}, [6, 12, 18, 24, 30]), ('no collateral held', {'old_price': 10, 'new_price': 10, 'total': 8, 'new_total': 6, 'filled': 3, 'stamp': 1, 'now': 8, 'cancel': False, 'ack': False, 'revision': 2, 'expected': 2, 'old_lot': 'A', 'new_lot': 'A', 'old_owner': 'a', 'new_owner': 'a', 'frozen': False, 'held': 0, 'request_id': 'r2', 'last_id': 'r1'}, [6, 12, 18, 24, 30]), ('price replacement', {'old_price': 10, 'new_price': 12, 'total': 8, 'new_total': 6, 'filled': 3, 'stamp': 1, 'now': 8, 'cancel': False, 'ack': False, 'revision': 2, 'expected': 2, 'old_lot': 'A', 'new_lot': 'A', 'old_owner': 'a', 'new_owner': 'a', 'frozen': False, 'held': 8, 'request_id': 'r2', 'last_id': 'r1'}, [6, 12, 18, 24, 30]), ('size increase', {'old_price': 10, 'new_price': 10, 'total': 8, 'new_total': 12, 'filled': 3, 'stamp': 1, 'now': 8, 'cancel': False, 'ack': False, 'revision': 2, 'expected': 2, 'old_lot': 'A', 'new_lot': 'A', 'old_owner': 'a', 'new_owner': 'a', 'frozen': False, 'held': 8, 'request_id': 'r2', 'last_id': 'r1'}, [12, 24, 36, 48, 60]), ('acknowledged cancel', {'old_price': 10, 'new_price': 10, 'total': 8, 'new_total': 6, 'filled': 3, 'stamp': 1, 'now': 8, 'cancel': True, 'ack': True, 'revision': 2, 'expected': 2, 'old_lot': 'A', 'new_lot': 'A', 'old_owner': 'a', 'new_owner': 'a', 'frozen': False, 'held': 8, 'request_id': 'r2', 'last_id': 'r1'}, [6, 12, 18, 24, 30])]\ndef vary(value):\n if type(value) is int: return value*N\n if isinstance(value,list): return [vary(v) for v in value]\n if isinstance(value,dict): return {k:(v if k in ['count', 'delivery_index', 'disputed', 'maximum_set', 'minimum_set', 'stage', 'threshold', 'waived'] else vary(v)) for k,v in value.items()}\n return value\nfor label, request, expected in fixtures:\n check(label, solve(vary(request))['filled-floor'], expected[N-1])\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":"Stipulated toy auction rules, not a venue specification, financial advice, optimization claim, or live trading implementation. Nonnegative integer inputs and internally aligned list fields only. 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-auction-allocation-rules-amendment-priority-filled-floor","generated_at":"2026-09-29T14:46:06.829878+00:00","license":"CC0-1.0","python":"3.12.14","seed":1,"split":"open-access"},"relevance":"Offline administrative auction model for software failure analysis.","repair":"Clamp accepted total to filled quantity, not the old requested total.","root_cause":"An amendment retroactively deletes executed units.","sha256":"5174d2febba0e2f9b2a2c2d652c771571ac4d3efbcf81a6092df9abd5e92109d","title":"Amendment priority: filled floor ยท case 01","variant":1,"variant_policy":"Five numbered records share a model and may reuse boundary fixtures.","verification":{"attempt":{"elapsed_ms":41.518,"exit_code":1,"observations":[{"actual":8,"check":"below executed size","expected":3,"passed":false},{"actual":8,"check":"lower price / below executed size","expected":3,"passed":false},{"actual":6,"check":"normal contract","expected":6,"passed":true},{"actual":6,"check":"lower price","expected":6,"passed":true},{"actual":6,"check":"unrelated acknowledgment","expected":6,"passed":true},{"actual":6,"check":"future revision","expected":6,"passed":true},{"actual":6,"check":"no collateral held","expected":6,"passed":true},{"actual":6,"check":"price replacement","expected":6,"passed":true},{"actual":12,"check":"size increase","expected":12,"passed":true},{"actual":6,"check":"acknowledged cancel","expected":6,"passed":true}],"passed":false,"stderr":"","stdout":"{\"observations\": [{\"check\": \"below executed size\", \"actual\": 8, \"expected\": 3, \"passed\": false}, {\"check\": \"lower price / below executed size\", \"actual\": 8, \"expected\": 3, \"passed\": false}, {\"check\": \"normal contract\", \"actual\": 6, \"expected\": 6, \"passed\": true}, {\"check\": \"lower price\", \"actual\": 6, \"expected\": 6, \"passed\": true}, {\"check\": \"unrelated acknowledgment\", \"actual\": 6, \"expected\": 6, \"passed\": true}, {\"check\": \"future revision\", \"actual\": 6, \"expected\": 6, \"passed\": true}, {\"check\": \"no collateral held\", \"actual\": 6, \"expected\": 6, \"passed\": true}, {\"check\": \"price replacement\", \"actual\": 6, \"expected\": 6, \"passed\": true}, {\"check\": \"size increase\", \"actual\": 12, \"expected\": 12, \"passed\": true}, {\"check\": \"acknowledged cancel\", \"actual\": 6, \"expected\": 6, \"passed\": true}], \"passed\": false}\n"},"broken":{"elapsed_ms":40.685,"exit_code":1,"observations":[{"actual":2,"check":"below executed size","expected":3,"passed":false},{"actual":2,"check":"lower price / below executed size","expected":3,"passed":false},{"actual":6,"check":"normal contract","expected":6,"passed":true},{"actual":6,"check":"lower price","expected":6,"passed":true},{"actual":6,"check":"unrelated acknowledgment","expected":6,"passed":true},{"actual":6,"check":"future revision","expected":6,"passed":true},{"actual":6,"check":"no collateral held","expected":6,"passed":true},{"actual":6,"check":"price replacement","expected":6,"passed":true},{"actual":12,"check":"size increase","expected":12,"passed":true},{"actual":6,"check":"acknowledged cancel","expected":6,"passed":true}],"passed":false,"stderr":"","stdout":"{\"observations\": [{\"check\": \"below executed size\", \"actual\": 2, \"expected\": 3, \"passed\": false}, {\"check\": \"lower price / below executed size\", \"actual\": 2, \"expected\": 3, \"passed\": false}, {\"check\": \"normal contract\", \"actual\": 6, \"expected\": 6, \"passed\": true}, {\"check\": \"lower price\", \"actual\": 6, \"expected\": 6, \"passed\": true}, {\"check\": \"unrelated acknowledgment\", \"actual\": 6, \"expected\": 6, \"passed\": true}, {\"check\": \"future revision\", \"actual\": 6, \"expected\": 6, \"passed\": true}, {\"check\": \"no collateral held\", \"actual\": 6, \"expected\": 6, \"passed\": true}, {\"check\": \"price replacement\", \"actual\": 6, \"expected\": 6, \"passed\": true}, {\"check\": \"size increase\", \"actual\": 12, \"expected\": 12, \"passed\": true}, {\"check\": \"acknowledged cancel\", \"actual\": 6, \"expected\": 6, \"passed\": true}], \"passed\": false}\n"},"fixed":{"elapsed_ms":40.346,"exit_code":0,"observations":[{"actual":3,"check":"below executed size","expected":3,"passed":true},{"actual":3,"check":"lower price / below executed size","expected":3,"passed":true},{"actual":6,"check":"normal contract","expected":6,"passed":true},{"actual":6,"check":"lower price","expected":6,"passed":true},{"actual":6,"check":"unrelated acknowledgment","expected":6,"passed":true},{"actual":6,"check":"future revision","expected":6,"passed":true},{"actual":6,"check":"no collateral held","expected":6,"passed":true},{"actual":6,"check":"price replacement","expected":6,"passed":true},{"actual":12,"check":"size increase","expected":12,"passed":true},{"actual":6,"check":"acknowledged cancel","expected":6,"passed":true}],"passed":true,"stderr":"","stdout":"{\"observations\": [{\"check\": \"below executed size\", \"actual\": 3, \"expected\": 3, \"passed\": true}, {\"check\": \"lower price / below executed size\", \"actual\": 3, \"expected\": 3, \"passed\": true}, {\"check\": \"normal contract\", \"actual\": 6, \"expected\": 6, \"passed\": true}, {\"check\": \"lower price\", \"actual\": 6, \"expected\": 6, \"passed\": true}, {\"check\": \"unrelated acknowledgment\", \"actual\": 6, \"expected\": 6, \"passed\": true}, {\"check\": \"future revision\", \"actual\": 6, \"expected\": 6, \"passed\": true}, {\"check\": \"no collateral held\", \"actual\": 6, \"expected\": 6, \"passed\": true}, {\"check\": \"price replacement\", \"actual\": 6, \"expected\": 6, \"passed\": true}, {\"check\": \"size increase\", \"actual\": 12, \"expected\": 12, \"passed\": true}, {\"check\": \"acknowledged cancel\", \"actual\": 6, \"expected\": 6, \"passed\": true}], \"passed\": true}\n"}},"verified":true,"visibility":"public"}