{"abstract":"Title reversal happens while delivered award units remain with the buyer.","category":"Auction allocation rules","checks":11,"contract":"An annulled auction award is unwound by separately reversing unshipped inventory reservations, refundable buyer payments, seller proceeds and title. Delivered units require return first. Reversal records refer to the original award identifier and prior reversal amount. Named decision title-return-gate: For title return gate, apply the stipulated decision x[\"annulled\"] and x[\"title_passed\"] and x[\"returned\"]>=x[\"shipped\"].","evaluation_group":"s3-auction-award-unwind","failed_approach":"The attempted repair uses x[\"returned\"]>=x[\"shipped\"]; the explicit regression cases demonstrate that this still violates the stipulated auction rule.","family":"s3-auction-allocation-rules-award-unwind-title-return-gate","id":"FA-57476","implementations":{"attempt":{"sha256":"ba16e920425f23efe80c9848f73a7ecd8e9a746e18fe79ec27bd8a15dd0d5578","source":"\"\"\"Failure Map reference implementation. Python standard library only.\"\"\"\nimport json\n\nN = 1\nobservations = []\ndef solve(x):\n    v0 = max(0,x[\"awarded\"]-x[\"shipped\"]-x[\"inventory_released\"])\n    v1 = min(x[\"returned\"],x[\"shipped\"])\n    v2 = max(0,x[\"paid\"]-x[\"refunded\"])\n    v3 = max(0,x[\"seller_paid\"]-x[\"seller_recovered\"])\n    v4 = max(0,x[\"paid\"]-x[\"refunded\"]) if x[\"annulled\"] else 0\n    v5 = x[\"fee\"] if x[\"fee_refundable\"] and x[\"annulled\"] else 0\n    v6 = x[\"award_id\"]==x[\"reversal_award\"]\n    v7 = x[\"returned\"]>=x[\"shipped\"]\n    v8 = max(0,x[\"bond\"]-x[\"bond_called\"])\n    v9 = [i for i in x[\"related\"] if i not in x[\"annulled_ids\"]]\n    return {'unshipped-inventory-release':v0,'returned-inventory-restoration':v1,'buyer-refund-residue':v2,'seller-proceeds-recovery':v3,'annulment-execution-gate':v4,'fee-refund-policy':v5,'reversal-award-binding':v6,'title-return-gate':v7,'uncalled-bond-release':v8,'related-award-isolation':v9}\ndef check(label, actual, expected):\n    observations.append({\"check\": label, \"actual\": actual, \"expected\": expected, \"passed\": actual == expected})\nfixtures = [('normal contract', {'annulled': True, 'awarded': 8, 'shipped': 5, 'returned': 2, 'paid': 30, 'refunded': 8, 'seller_paid': 20, 'seller_recovered': 4, 'fee': 3, 'fee_refundable': False, 'award_id': 'w1', 'reversal_award': 'w1', 'title_passed': True, 'inventory_released': 1, 'bond': 6, 'bond_called': 2, 'related': ['w1', 'w2'], 'annulled_ids': ['w1']}, [False, False, False, False, False]), ('fully refunded', {'annulled': True, 'awarded': 8, 'shipped': 5, 'returned': 2, 'paid': 30, 'refunded': 30, 'seller_paid': 20, 'seller_recovered': 4, 'fee': 3, 'fee_refundable': False, 'award_id': 'w1', 'reversal_award': 'w1', 'title_passed': True, 'inventory_released': 1, 'bond': 6, 'bond_called': 2, 'related': ['w1', 'w2'], 'annulled_ids': ['w1']}, [False, False, False, False, False]), ('return above shipped quantity / not annulled', {'annulled': False, 'awarded': 8, 'shipped': 5, 'returned': 7, 'paid': 30, 'refunded': 8, 'seller_paid': 20, 'seller_recovered': 4, 'fee': 3, 'fee_refundable': False, 'award_id': 'w1', 'reversal_award': 'w1', 'title_passed': True, 'inventory_released': 1, 'bond': 6, 'bond_called': 2, 'related': ['w1', 'w2'], 'annulled_ids': ['w1']}, [False, False, False, False, False]), ('return above shipped quantity / no title transfer', {'annulled': True, 'awarded': 8, 'shipped': 5, 'returned': 7, 'paid': 30, 'refunded': 8, 'seller_paid': 20, 'seller_recovered': 4, 'fee': 3, 'fee_refundable': False, 'award_id': 'w1', 'reversal_award': 'w1', 'title_passed': False, 'inventory_released': 1, 'bond': 6, 'bond_called': 2, 'related': ['w1', 'w2'], 'annulled_ids': ['w1']}, [False, False, False, False, False]), ('return above shipped quantity', {'annulled': True, 'awarded': 8, 'shipped': 5, 'returned': 7, 'paid': 30, 'refunded': 8, 'seller_paid': 20, 'seller_recovered': 4, 'fee': 3, 'fee_refundable': False, 'award_id': 'w1', 'reversal_award': 'w1', 'title_passed': True, 'inventory_released': 1, 'bond': 6, 'bond_called': 2, 'related': ['w1', 'w2'], 'annulled_ids': ['w1']}, [True, True, True, True, True]), ('not annulled', {'annulled': False, 'awarded': 8, 'shipped': 5, 'returned': 2, 'paid': 30, 'refunded': 8, 'seller_paid': 20, 'seller_recovered': 4, 'fee': 3, 'fee_refundable': False, 'award_id': 'w1', 'reversal_award': 'w1', 'title_passed': True, 'inventory_released': 1, 'bond': 6, 'bond_called': 2, 'related': ['w1', 'w2'], 'annulled_ids': ['w1']}, [False, False, False, False, False]), ('all shipped returned', {'annulled': True, 'awarded': 8, 'shipped': 5, 'returned': 5, 'paid': 30, 'refunded': 8, 'seller_paid': 20, 'seller_recovered': 4, 'fee': 3, 'fee_refundable': False, 'award_id': 'w1', 'reversal_award': 'w1', 'title_passed': True, 'inventory_released': 1, 'bond': 6, 'bond_called': 2, 'related': ['w1', 'w2'], 'annulled_ids': ['w1']}, [True, True, True, True, True]), ('no shipments', {'annulled': True, 'awarded': 8, 'shipped': 0, 'returned': 0, 'paid': 30, 'refunded': 8, 'seller_paid': 20, 'seller_recovered': 4, 'fee': 3, 'fee_refundable': False, 'award_id': 'w1', 'reversal_award': 'w1', 'title_passed': True, 'inventory_released': 1, 'bond': 6, 'bond_called': 2, 'related': ['w1', 'w2'], 'annulled_ids': ['w1']}, [True, True, True, True, True]), ('seller fully recovered', {'annulled': True, 'awarded': 8, 'shipped': 5, 'returned': 2, 'paid': 30, 'refunded': 8, 'seller_paid': 20, 'seller_recovered': 20, 'fee': 3, 'fee_refundable': False, 'award_id': 'w1', 'reversal_award': 'w1', 'title_passed': True, 'inventory_released': 1, 'bond': 6, 'bond_called': 2, 'related': ['w1', 'w2'], 'annulled_ids': ['w1']}, [False, False, False, False, False]), ('fee refundable', {'annulled': True, 'awarded': 8, 'shipped': 5, 'returned': 2, 'paid': 30, 'refunded': 8, 'seller_paid': 20, 'seller_recovered': 4, 'fee': 3, 'fee_refundable': True, 'award_id': 'w1', 'reversal_award': 'w1', 'title_passed': True, 'inventory_released': 1, 'bond': 6, 'bond_called': 2, 'related': ['w1', 'w2'], 'annulled_ids': ['w1']}, [False, False, False, False, False]), ('wrong award reversal', {'annulled': True, 'awarded': 8, 'shipped': 5, 'returned': 2, 'paid': 30, 'refunded': 8, 'seller_paid': 20, 'seller_recovered': 4, 'fee': 3, 'fee_refundable': False, 'award_id': 'w1', 'reversal_award': 'w2', 'title_passed': True, 'inventory_released': 1, 'bond': 6, 'bond_called': 2, 'related': ['w1', 'w2'], 'annulled_ids': ['w1']}, [False, False, False, False, False])]\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))['title-return-gate'], 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"},"broken":{"sha256":"d63f994447ab45ee215589bbc389244d192016a5c91b5edaf660f60e2888de4f","source":"\"\"\"Failure Map reference implementation. Python standard library only.\"\"\"\nimport json\n\nN = 1\nobservations = []\ndef solve(x):\n    v0 = max(0,x[\"awarded\"]-x[\"shipped\"]-x[\"inventory_released\"])\n    v1 = min(x[\"returned\"],x[\"shipped\"])\n    v2 = max(0,x[\"paid\"]-x[\"refunded\"])\n    v3 = max(0,x[\"seller_paid\"]-x[\"seller_recovered\"])\n    v4 = max(0,x[\"paid\"]-x[\"refunded\"]) if x[\"annulled\"] else 0\n    v5 = x[\"fee\"] if x[\"fee_refundable\"] and x[\"annulled\"] else 0\n    v6 = x[\"award_id\"]==x[\"reversal_award\"]\n    v7 = x[\"annulled\"] and x[\"title_passed\"]\n    v8 = max(0,x[\"bond\"]-x[\"bond_called\"])\n    v9 = [i for i in x[\"related\"] if i not in x[\"annulled_ids\"]]\n    return {'unshipped-inventory-release':v0,'returned-inventory-restoration':v1,'buyer-refund-residue':v2,'seller-proceeds-recovery':v3,'annulment-execution-gate':v4,'fee-refund-policy':v5,'reversal-award-binding':v6,'title-return-gate':v7,'uncalled-bond-release':v8,'related-award-isolation':v9}\ndef check(label, actual, expected):\n    observations.append({\"check\": label, \"actual\": actual, \"expected\": expected, \"passed\": actual == expected})\nfixtures = [('normal contract', {'annulled': True, 'awarded': 8, 'shipped': 5, 'returned': 2, 'paid': 30, 'refunded': 8, 'seller_paid': 20, 'seller_recovered': 4, 'fee': 3, 'fee_refundable': False, 'award_id': 'w1', 'reversal_award': 'w1', 'title_passed': True, 'inventory_released': 1, 'bond': 6, 'bond_called': 2, 'related': ['w1', 'w2'], 'annulled_ids': ['w1']}, [False, False, False, False, False]), ('fully refunded', {'annulled': True, 'awarded': 8, 'shipped': 5, 'returned': 2, 'paid': 30, 'refunded': 30, 'seller_paid': 20, 'seller_recovered': 4, 'fee': 3, 'fee_refundable': False, 'award_id': 'w1', 'reversal_award': 'w1', 'title_passed': True, 'inventory_released': 1, 'bond': 6, 'bond_called': 2, 'related': ['w1', 'w2'], 'annulled_ids': ['w1']}, [False, False, False, False, False]), ('return above shipped quantity / not annulled', {'annulled': False, 'awarded': 8, 'shipped': 5, 'returned': 7, 'paid': 30, 'refunded': 8, 'seller_paid': 20, 'seller_recovered': 4, 'fee': 3, 'fee_refundable': False, 'award_id': 'w1', 'reversal_award': 'w1', 'title_passed': True, 'inventory_released': 1, 'bond': 6, 'bond_called': 2, 'related': ['w1', 'w2'], 'annulled_ids': ['w1']}, [False, False, False, False, False]), ('return above shipped quantity / no title transfer', {'annulled': True, 'awarded': 8, 'shipped': 5, 'returned': 7, 'paid': 30, 'refunded': 8, 'seller_paid': 20, 'seller_recovered': 4, 'fee': 3, 'fee_refundable': False, 'award_id': 'w1', 'reversal_award': 'w1', 'title_passed': False, 'inventory_released': 1, 'bond': 6, 'bond_called': 2, 'related': ['w1', 'w2'], 'annulled_ids': ['w1']}, [False, False, False, False, False]), ('return above shipped quantity', {'annulled': True, 'awarded': 8, 'shipped': 5, 'returned': 7, 'paid': 30, 'refunded': 8, 'seller_paid': 20, 'seller_recovered': 4, 'fee': 3, 'fee_refundable': False, 'award_id': 'w1', 'reversal_award': 'w1', 'title_passed': True, 'inventory_released': 1, 'bond': 6, 'bond_called': 2, 'related': ['w1', 'w2'], 'annulled_ids': ['w1']}, [True, True, True, True, True]), ('not annulled', {'annulled': False, 'awarded': 8, 'shipped': 5, 'returned': 2, 'paid': 30, 'refunded': 8, 'seller_paid': 20, 'seller_recovered': 4, 'fee': 3, 'fee_refundable': False, 'award_id': 'w1', 'reversal_award': 'w1', 'title_passed': True, 'inventory_released': 1, 'bond': 6, 'bond_called': 2, 'related': ['w1', 'w2'], 'annulled_ids': ['w1']}, [False, False, False, False, False]), ('all shipped returned', {'annulled': True, 'awarded': 8, 'shipped': 5, 'returned': 5, 'paid': 30, 'refunded': 8, 'seller_paid': 20, 'seller_recovered': 4, 'fee': 3, 'fee_refundable': False, 'award_id': 'w1', 'reversal_award': 'w1', 'title_passed': True, 'inventory_released': 1, 'bond': 6, 'bond_called': 2, 'related': ['w1', 'w2'], 'annulled_ids': ['w1']}, [True, True, True, True, True]), ('no shipments', {'annulled': True, 'awarded': 8, 'shipped': 0, 'returned': 0, 'paid': 30, 'refunded': 8, 'seller_paid': 20, 'seller_recovered': 4, 'fee': 3, 'fee_refundable': False, 'award_id': 'w1', 'reversal_award': 'w1', 'title_passed': True, 'inventory_released': 1, 'bond': 6, 'bond_called': 2, 'related': ['w1', 'w2'], 'annulled_ids': ['w1']}, [True, True, True, True, True]), ('seller fully recovered', {'annulled': True, 'awarded': 8, 'shipped': 5, 'returned': 2, 'paid': 30, 'refunded': 8, 'seller_paid': 20, 'seller_recovered': 20, 'fee': 3, 'fee_refundable': False, 'award_id': 'w1', 'reversal_award': 'w1', 'title_passed': True, 'inventory_released': 1, 'bond': 6, 'bond_called': 2, 'related': ['w1', 'w2'], 'annulled_ids': ['w1']}, [False, False, False, False, False]), ('fee refundable', {'annulled': True, 'awarded': 8, 'shipped': 5, 'returned': 2, 'paid': 30, 'refunded': 8, 'seller_paid': 20, 'seller_recovered': 4, 'fee': 3, 'fee_refundable': True, 'award_id': 'w1', 'reversal_award': 'w1', 'title_passed': True, 'inventory_released': 1, 'bond': 6, 'bond_called': 2, 'related': ['w1', 'w2'], 'annulled_ids': ['w1']}, [False, False, False, False, False]), ('wrong award reversal', {'annulled': True, 'awarded': 8, 'shipped': 5, 'returned': 2, 'paid': 30, 'refunded': 8, 'seller_paid': 20, 'seller_recovered': 4, 'fee': 3, 'fee_refundable': False, 'award_id': 'w1', 'reversal_award': 'w2', 'title_passed': True, 'inventory_released': 1, 'bond': 6, 'bond_called': 2, 'related': ['w1', 'w2'], 'annulled_ids': ['w1']}, [False, False, False, False, False])]\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))['title-return-gate'], 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":"85f32bb69f050879cb7e886144444bf30add51ae3c2e06f43373681503d7b404","source":"\"\"\"Failure Map reference implementation. Python standard library only.\"\"\"\nimport json\n\nN = 1\nobservations = []\ndef solve(x):\n    v0 = max(0,x[\"awarded\"]-x[\"shipped\"]-x[\"inventory_released\"])\n    v1 = min(x[\"returned\"],x[\"shipped\"])\n    v2 = max(0,x[\"paid\"]-x[\"refunded\"])\n    v3 = max(0,x[\"seller_paid\"]-x[\"seller_recovered\"])\n    v4 = max(0,x[\"paid\"]-x[\"refunded\"]) if x[\"annulled\"] else 0\n    v5 = x[\"fee\"] if x[\"fee_refundable\"] and x[\"annulled\"] else 0\n    v6 = x[\"award_id\"]==x[\"reversal_award\"]\n    v7 = x[\"annulled\"] and x[\"title_passed\"] and x[\"returned\"]>=x[\"shipped\"]\n    v8 = max(0,x[\"bond\"]-x[\"bond_called\"])\n    v9 = [i for i in x[\"related\"] if i not in x[\"annulled_ids\"]]\n    return {'unshipped-inventory-release':v0,'returned-inventory-restoration':v1,'buyer-refund-residue':v2,'seller-proceeds-recovery':v3,'annulment-execution-gate':v4,'fee-refund-policy':v5,'reversal-award-binding':v6,'title-return-gate':v7,'uncalled-bond-release':v8,'related-award-isolation':v9}\ndef check(label, actual, expected):\n    observations.append({\"check\": label, \"actual\": actual, \"expected\": expected, \"passed\": actual == expected})\nfixtures = [('normal contract', {'annulled': True, 'awarded': 8, 'shipped': 5, 'returned': 2, 'paid': 30, 'refunded': 8, 'seller_paid': 20, 'seller_recovered': 4, 'fee': 3, 'fee_refundable': False, 'award_id': 'w1', 'reversal_award': 'w1', 'title_passed': True, 'inventory_released': 1, 'bond': 6, 'bond_called': 2, 'related': ['w1', 'w2'], 'annulled_ids': ['w1']}, [False, False, False, False, False]), ('fully refunded', {'annulled': True, 'awarded': 8, 'shipped': 5, 'returned': 2, 'paid': 30, 'refunded': 30, 'seller_paid': 20, 'seller_recovered': 4, 'fee': 3, 'fee_refundable': False, 'award_id': 'w1', 'reversal_award': 'w1', 'title_passed': True, 'inventory_released': 1, 'bond': 6, 'bond_called': 2, 'related': ['w1', 'w2'], 'annulled_ids': ['w1']}, [False, False, False, False, False]), ('return above shipped quantity / not annulled', {'annulled': False, 'awarded': 8, 'shipped': 5, 'returned': 7, 'paid': 30, 'refunded': 8, 'seller_paid': 20, 'seller_recovered': 4, 'fee': 3, 'fee_refundable': False, 'award_id': 'w1', 'reversal_award': 'w1', 'title_passed': True, 'inventory_released': 1, 'bond': 6, 'bond_called': 2, 'related': ['w1', 'w2'], 'annulled_ids': ['w1']}, [False, False, False, False, False]), ('return above shipped quantity / no title transfer', {'annulled': True, 'awarded': 8, 'shipped': 5, 'returned': 7, 'paid': 30, 'refunded': 8, 'seller_paid': 20, 'seller_recovered': 4, 'fee': 3, 'fee_refundable': False, 'award_id': 'w1', 'reversal_award': 'w1', 'title_passed': False, 'inventory_released': 1, 'bond': 6, 'bond_called': 2, 'related': ['w1', 'w2'], 'annulled_ids': ['w1']}, [False, False, False, False, False]), ('return above shipped quantity', {'annulled': True, 'awarded': 8, 'shipped': 5, 'returned': 7, 'paid': 30, 'refunded': 8, 'seller_paid': 20, 'seller_recovered': 4, 'fee': 3, 'fee_refundable': False, 'award_id': 'w1', 'reversal_award': 'w1', 'title_passed': True, 'inventory_released': 1, 'bond': 6, 'bond_called': 2, 'related': ['w1', 'w2'], 'annulled_ids': ['w1']}, [True, True, True, True, True]), ('not annulled', {'annulled': False, 'awarded': 8, 'shipped': 5, 'returned': 2, 'paid': 30, 'refunded': 8, 'seller_paid': 20, 'seller_recovered': 4, 'fee': 3, 'fee_refundable': False, 'award_id': 'w1', 'reversal_award': 'w1', 'title_passed': True, 'inventory_released': 1, 'bond': 6, 'bond_called': 2, 'related': ['w1', 'w2'], 'annulled_ids': ['w1']}, [False, False, False, False, False]), ('all shipped returned', {'annulled': True, 'awarded': 8, 'shipped': 5, 'returned': 5, 'paid': 30, 'refunded': 8, 'seller_paid': 20, 'seller_recovered': 4, 'fee': 3, 'fee_refundable': False, 'award_id': 'w1', 'reversal_award': 'w1', 'title_passed': True, 'inventory_released': 1, 'bond': 6, 'bond_called': 2, 'related': ['w1', 'w2'], 'annulled_ids': ['w1']}, [True, True, True, True, True]), ('no shipments', {'annulled': True, 'awarded': 8, 'shipped': 0, 'returned': 0, 'paid': 30, 'refunded': 8, 'seller_paid': 20, 'seller_recovered': 4, 'fee': 3, 'fee_refundable': False, 'award_id': 'w1', 'reversal_award': 'w1', 'title_passed': True, 'inventory_released': 1, 'bond': 6, 'bond_called': 2, 'related': ['w1', 'w2'], 'annulled_ids': ['w1']}, [True, True, True, True, True]), ('seller fully recovered', {'annulled': True, 'awarded': 8, 'shipped': 5, 'returned': 2, 'paid': 30, 'refunded': 8, 'seller_paid': 20, 'seller_recovered': 20, 'fee': 3, 'fee_refundable': False, 'award_id': 'w1', 'reversal_award': 'w1', 'title_passed': True, 'inventory_released': 1, 'bond': 6, 'bond_called': 2, 'related': ['w1', 'w2'], 'annulled_ids': ['w1']}, [False, False, False, False, False]), ('fee refundable', {'annulled': True, 'awarded': 8, 'shipped': 5, 'returned': 2, 'paid': 30, 'refunded': 8, 'seller_paid': 20, 'seller_recovered': 4, 'fee': 3, 'fee_refundable': True, 'award_id': 'w1', 'reversal_award': 'w1', 'title_passed': True, 'inventory_released': 1, 'bond': 6, 'bond_called': 2, 'related': ['w1', 'w2'], 'annulled_ids': ['w1']}, [False, False, False, False, False]), ('wrong award reversal', {'annulled': True, 'awarded': 8, 'shipped': 5, 'returned': 2, 'paid': 30, 'refunded': 8, 'seller_paid': 20, 'seller_recovered': 4, 'fee': 3, 'fee_refundable': False, 'award_id': 'w1', 'reversal_award': 'w2', 'title_passed': True, 'inventory_released': 1, 'bond': 6, 'bond_called': 2, 'related': ['w1', 'w2'], 'annulled_ids': ['w1']}, [False, False, False, False, False])]\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))['title-return-gate'], 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-award-unwind-title-return-gate","generated_at":"2026-09-29T14:46:17.172493+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":"For title return gate, apply the stipulated decision x[\"annulled\"] and x[\"title_passed\"] and x[\"returned\"]>=x[\"shipped\"].","root_cause":"Title reversal happens while delivered award units remain with the buyer.","sha256":"ed108fd90a4f6c7a5b17281ba4116b2cfd8d24db30c2fe01fae906181ccce7f1","title":"Award unwind: title return gate · case 01","variant":1,"variant_policy":"Five numbered records share a model and may reuse boundary fixtures.","verification":{"attempt":{"elapsed_ms":39.658,"exit_code":1,"observations":[{"actual":false,"check":"normal contract","expected":false,"passed":true},{"actual":false,"check":"fully refunded","expected":false,"passed":true},{"actual":true,"check":"return above shipped quantity / not annulled","expected":false,"passed":false},{"actual":true,"check":"return above shipped quantity / no title transfer","expected":false,"passed":false},{"actual":true,"check":"return above shipped quantity","expected":true,"passed":true},{"actual":false,"check":"not annulled","expected":false,"passed":true},{"actual":true,"check":"all shipped returned","expected":true,"passed":true},{"actual":true,"check":"no shipments","expected":true,"passed":true},{"actual":false,"check":"seller fully recovered","expected":false,"passed":true},{"actual":false,"check":"fee refundable","expected":false,"passed":true},{"actual":false,"check":"wrong award reversal","expected":false,"passed":true}],"passed":false,"stderr":"","stdout":"{\"observations\": [{\"check\": \"normal contract\", \"actual\": false, \"expected\": false, \"passed\": true}, {\"check\": \"fully refunded\", \"actual\": false, \"expected\": false, \"passed\": true}, {\"check\": \"return above shipped quantity / not annulled\", \"actual\": true, \"expected\": false, \"passed\": false}, {\"check\": \"return above shipped quantity / no title transfer\", \"actual\": true, \"expected\": false, \"passed\": false}, {\"check\": \"return above shipped quantity\", \"actual\": true, \"expected\": true, \"passed\": true}, {\"check\": \"not annulled\", \"actual\": false, \"expected\": false, \"passed\": true}, {\"check\": \"all shipped returned\", \"actual\": true, \"expected\": true, \"passed\": true}, {\"check\": \"no shipments\", \"actual\": true, \"expected\": true, \"passed\": true}, {\"check\": \"seller fully recovered\", \"actual\": false, \"expected\": false, \"passed\": true}, {\"check\": \"fee refundable\", \"actual\": false, \"expected\": false, \"passed\": true}, {\"check\": \"wrong award reversal\", \"actual\": false, \"expected\": false, \"passed\": true}], \"passed\": false}\n"},"broken":{"elapsed_ms":45.885,"exit_code":1,"observations":[{"actual":true,"check":"normal contract","expected":false,"passed":false},{"actual":true,"check":"fully refunded","expected":false,"passed":false},{"actual":false,"check":"return above shipped quantity / not annulled","expected":false,"passed":true},{"actual":false,"check":"return above shipped quantity / no title transfer","expected":false,"passed":true},{"actual":true,"check":"return above shipped quantity","expected":true,"passed":true},{"actual":false,"check":"not annulled","expected":false,"passed":true},{"actual":true,"check":"all shipped returned","expected":true,"passed":true},{"actual":true,"check":"no shipments","expected":true,"passed":true},{"actual":true,"check":"seller fully recovered","expected":false,"passed":false},{"actual":true,"check":"fee refundable","expected":false,"passed":false},{"actual":true,"check":"wrong award reversal","expected":false,"passed":false}],"passed":false,"stderr":"","stdout":"{\"observations\": [{\"check\": \"normal contract\", \"actual\": true, \"expected\": false, \"passed\": false}, {\"check\": \"fully refunded\", \"actual\": true, \"expected\": false, \"passed\": false}, {\"check\": \"return above shipped quantity / not annulled\", \"actual\": false, \"expected\": false, \"passed\": true}, {\"check\": \"return above shipped quantity / no title transfer\", \"actual\": false, \"expected\": false, \"passed\": true}, {\"check\": \"return above shipped quantity\", \"actual\": true, \"expected\": true, \"passed\": true}, {\"check\": \"not annulled\", \"actual\": false, \"expected\": false, \"passed\": true}, {\"check\": \"all shipped returned\", \"actual\": true, \"expected\": true, \"passed\": true}, {\"check\": \"no shipments\", \"actual\": true, \"expected\": true, \"passed\": true}, {\"check\": \"seller fully recovered\", \"actual\": true, \"expected\": false, \"passed\": false}, {\"check\": \"fee refundable\", \"actual\": true, \"expected\": false, \"passed\": false}, {\"check\": \"wrong award reversal\", \"actual\": true, \"expected\": false, \"passed\": false}], \"passed\": false}\n"},"fixed":{"elapsed_ms":43.456,"exit_code":0,"observations":[{"actual":false,"check":"normal contract","expected":false,"passed":true},{"actual":false,"check":"fully refunded","expected":false,"passed":true},{"actual":false,"check":"return above shipped quantity / not annulled","expected":false,"passed":true},{"actual":false,"check":"return above shipped quantity / no title transfer","expected":false,"passed":true},{"actual":true,"check":"return above shipped quantity","expected":true,"passed":true},{"actual":false,"check":"not annulled","expected":false,"passed":true},{"actual":true,"check":"all shipped returned","expected":true,"passed":true},{"actual":true,"check":"no shipments","expected":true,"passed":true},{"actual":false,"check":"seller fully recovered","expected":false,"passed":true},{"actual":false,"check":"fee refundable","expected":false,"passed":true},{"actual":false,"check":"wrong award reversal","expected":false,"passed":true}],"passed":true,"stderr":"","stdout":"{\"observations\": [{\"check\": \"normal contract\", \"actual\": false, \"expected\": false, \"passed\": true}, {\"check\": \"fully refunded\", \"actual\": false, \"expected\": false, \"passed\": true}, {\"check\": \"return above shipped quantity / not annulled\", \"actual\": false, \"expected\": false, \"passed\": true}, {\"check\": \"return above shipped quantity / no title transfer\", \"actual\": false, \"expected\": false, \"passed\": true}, {\"check\": \"return above shipped quantity\", \"actual\": true, \"expected\": true, \"passed\": true}, {\"check\": \"not annulled\", \"actual\": false, \"expected\": false, \"passed\": true}, {\"check\": \"all shipped returned\", \"actual\": true, \"expected\": true, \"passed\": true}, {\"check\": \"no shipments\", \"actual\": true, \"expected\": true, \"passed\": true}, {\"check\": \"seller fully recovered\", \"actual\": false, \"expected\": false, \"passed\": true}, {\"check\": \"fee refundable\", \"actual\": false, \"expected\": false, \"passed\": true}, {\"check\": \"wrong award reversal\", \"actual\": false, \"expected\": false, \"passed\": true}], \"passed\": true}\n"}},"verified":true,"visibility":"public"}