{"abstract":"One completed milestone releases every bond tranche.","category":"Auction allocation rules","checks":9,"contract":"A toy winning-bid bond secures post-award performance separately from payment. Bond tranches mature on distinct milestones; surety substitutions require explicit approval; partial calls consume the remaining callable face amount. Bond identifiers are unique strings. Named decision milestone-tranche-release: For milestone tranche release, apply the stipulated decision sum(q for m,q in zip(x[\"milestones\"],x[\"tranches\"]) if m in x[\"done\"]).","contract_signature":"x","evaluation_group":"s3-auction-performance-bond","failed_approach":"The attempted repair uses sum(q for m,q in zip(x[\"milestones\"],x[\"tranches\"]) if m not in x[\"done\"]); the explicit regression cases demonstrate that this still violates the stipulated auction rule.","family":"s3-auction-allocation-rules-performance-bond-milestone-tranche-release","id":"FA-57011","implementations":{"attempt":{"sha256":"de659458c50dca20c7ea7f4a7c276719f4f1c7b85e34d7407161bfb97b0d20b3","source":"\"\"\"Failure Map reference implementation. Python standard library only.\"\"\"\nimport json\n\nN = 1\nobservations = []\ndef solve(x):\n    v0 = max(0,x[\"face\"]-x[\"called\"])\n    v1 = min(x[\"request\"],max(0,x[\"face\"]-x[\"called\"]))\n    v2 = 0 if x[\"expired\"] else min(x[\"request\"],max(0,x[\"face\"]-x[\"called\"]))\n    v3 = x[\"retention\"] if x[\"completion\"] else x[\"face\"]\n    v4 = sum(q for m,q in zip(x[\"milestones\"],x[\"tranches\"]) if m not in x[\"done\"])\n    v5 = x[\"proposed\"] if x[\"proposed\"] in x[\"approved\"] else x[\"surety\"]\n    v6 = x[\"replaced\"] and x[\"proposed\"] in x[\"approved\"]\n    v7 = set(x[\"claim_lots\"])<=set(x[\"guaranteed\"])\n    v8 = x[\"claimant\"]==x[\"beneficiary\"] and not x[\"expired\"]\n    v9 = [i for i,t in x[\"presented_claims\"] if t<=x[\"claim_deadline\"]]\n    return {'callable-face':v0,'claim-call-cap':v1,'expiry-call-block':v2,'retention-after-completion':v3,'milestone-tranche-release':v4,'surety-substitution-approval':v5,'old-bond-discharge':v6,'guarantee-lot-coverage':v7,'beneficiary-claim-authority':v8,'timely-claim-survives-expiry':v9}\ndef check(label, actual, expected):\n    observations.append({\"check\": label, \"actual\": actual, \"expected\": expected, \"passed\": actual == expected})\nfixtures = [('normal contract', {'face': 30, 'called': 8, 'request': 10, 'paid_claims': 5, 'expired': False, 'completion': False, 'retention': 4, 'milestones': ['ship', 'inspect'], 'done': ['ship'], 'tranches': [12, 18], 'surety': 's1', 'proposed': 's2', 'approved': ['s1'], 'replaced': False, 'guaranteed': ['L1', 'L2'], 'claim_lots': ['L2'], 'returned': 3, 'beneficiary': 'seller', 'claimant': 'seller', 'claim_ids': ['c1', 'c2', 'c1'], 'presented_claims': [['c1', 3], ['c2', 7]], 'claim_deadline': 5}, [12, 24, 36, 48, 60]), ('partly guaranteed claim', {'face': 30, 'called': 8, 'request': 10, 'paid_claims': 5, 'expired': False, 'completion': False, 'retention': 4, 'milestones': ['ship', 'inspect'], 'done': ['ship'], 'tranches': [12, 18], 'surety': 's1', 'proposed': 's2', 'approved': ['s1'], 'replaced': False, 'guaranteed': ['L1', 'L2'], 'claim_lots': ['L1', 'L3'], 'returned': 3, 'beneficiary': 'seller', 'claimant': 'seller', 'claim_ids': ['c1', 'c2', 'c1'], 'presented_claims': [['c1', 3], ['c2', 7]], 'claim_deadline': 5}, [12, 24, 36, 48, 60]), ('claim too large', {'face': 30, 'called': 8, 'request': 40, 'paid_claims': 5, 'expired': False, 'completion': False, 'retention': 4, 'milestones': ['ship', 'inspect'], 'done': ['ship'], 'tranches': [12, 18], 'surety': 's1', 'proposed': 's2', 'approved': ['s1'], 'replaced': False, 'guaranteed': ['L1', 'L2'], 'claim_lots': ['L2'], 'returned': 3, 'beneficiary': 'seller', 'claimant': 'seller', 'claim_ids': ['c1', 'c2', 'c1'], 'presented_claims': [['c1', 3], ['c2', 7]], 'claim_deadline': 5}, [12, 24, 36, 48, 60]), ('bond exhausted', {'face': 30, 'called': 30, 'request': 10, 'paid_claims': 5, 'expired': False, 'completion': False, 'retention': 4, 'milestones': ['ship', 'inspect'], 'done': ['ship'], 'tranches': [12, 18], 'surety': 's1', 'proposed': 's2', 'approved': ['s1'], 'replaced': False, 'guaranteed': ['L1', 'L2'], 'claim_lots': ['L2'], 'returned': 3, 'beneficiary': 'seller', 'claimant': 'seller', 'claim_ids': ['c1', 'c2', 'c1'], 'presented_claims': [['c1', 3], ['c2', 7]], 'claim_deadline': 5}, [12, 24, 36, 48, 60]), ('expired', {'face': 30, 'called': 8, 'request': 10, 'paid_claims': 5, 'expired': True, 'completion': False, 'retention': 4, 'milestones': ['ship', 'inspect'], 'done': ['ship'], 'tranches': [12, 18], 'surety': 's1', 'proposed': 's2', 'approved': ['s1'], 'replaced': False, 'guaranteed': ['L1', 'L2'], 'claim_lots': ['L2'], 'returned': 3, 'beneficiary': 'seller', 'claimant': 'seller', 'claim_ids': ['c1', 'c2', 'c1'], 'presented_claims': [['c1', 3], ['c2', 7]], 'claim_deadline': 5}, [12, 24, 36, 48, 60]), ('completion', {'face': 30, 'called': 8, 'request': 10, 'paid_claims': 5, 'expired': False, 'completion': True, 'retention': 4, 'milestones': ['ship', 'inspect'], 'done': ['ship'], 'tranches': [12, 18], 'surety': 's1', 'proposed': 's2', 'approved': ['s1'], 'replaced': False, 'guaranteed': ['L1', 'L2'], 'claim_lots': ['L2'], 'returned': 3, 'beneficiary': 'seller', 'claimant': 'seller', 'claim_ids': ['c1', 'c2', 'c1'], 'presented_claims': [['c1', 3], ['c2', 7]], 'claim_deadline': 5}, [12, 24, 36, 48, 60]), ('all milestones', {'face': 30, 'called': 8, 'request': 10, 'paid_claims': 5, 'expired': False, 'completion': False, 'retention': 4, 'milestones': ['ship', 'inspect'], 'done': ['ship', 'inspect'], 'tranches': [12, 18], 'surety': 's1', 'proposed': 's2', 'approved': ['s1'], 'replaced': False, 'guaranteed': ['L1', 'L2'], 'claim_lots': ['L2'], 'returned': 3, 'beneficiary': 'seller', 'claimant': 'seller', 'claim_ids': ['c1', 'c2', 'c1'], 'presented_claims': [['c1', 3], ['c2', 7]], 'claim_deadline': 5}, [30, 60, 90, 120, 150]), ('substitution approved', {'face': 30, 'called': 8, 'request': 10, 'paid_claims': 5, 'expired': False, 'completion': False, 'retention': 4, 'milestones': ['ship', 'inspect'], 'done': ['ship'], 'tranches': [12, 18], 'surety': 's1', 'proposed': 's2', 'approved': ['s1', 's2'], 'replaced': False, 'guaranteed': ['L1', 'L2'], 'claim_lots': ['L2'], 'returned': 3, 'beneficiary': 'seller', 'claimant': 'seller', 'claim_ids': ['c1', 'c2', 'c1'], 'presented_claims': [['c1', 3], ['c2', 7]], 'claim_deadline': 5}, [12, 24, 36, 48, 60]), ('substitution finalized', {'face': 30, 'called': 8, 'request': 10, 'paid_claims': 5, 'expired': False, 'completion': False, 'retention': 4, 'milestones': ['ship', 'inspect'], 'done': ['ship'], 'tranches': [12, 18], 'surety': 's1', 'proposed': 's2', 'approved': ['s1'], 'replaced': True, 'guaranteed': ['L1', 'L2'], 'claim_lots': ['L2'], 'returned': 3, 'beneficiary': 'seller', 'claimant': 'seller', 'claim_ids': ['c1', 'c2', 'c1'], 'presented_claims': [['c1', 3], ['c2', 7]], 'claim_deadline': 5}, [12, 24, 36, 48, 60])]\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))['milestone-tranche-release'], 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":"66f05fd1c1e53bee6c5782fe9d12c595c4082d25d6098105006b348966dbeb9e","source":"\"\"\"Failure Map reference implementation. Python standard library only.\"\"\"\nimport json\n\nN = 1\nobservations = []\ndef solve(x):\n    v0 = max(0,x[\"face\"]-x[\"called\"])\n    v1 = min(x[\"request\"],max(0,x[\"face\"]-x[\"called\"]))\n    v2 = 0 if x[\"expired\"] else min(x[\"request\"],max(0,x[\"face\"]-x[\"called\"]))\n    v3 = x[\"retention\"] if x[\"completion\"] else x[\"face\"]\n    v4 = sum(x[\"tranches\"]) if x[\"done\"] else 0\n    v5 = x[\"proposed\"] if x[\"proposed\"] in x[\"approved\"] else x[\"surety\"]\n    v6 = x[\"replaced\"] and x[\"proposed\"] in x[\"approved\"]\n    v7 = set(x[\"claim_lots\"])<=set(x[\"guaranteed\"])\n    v8 = x[\"claimant\"]==x[\"beneficiary\"] and not x[\"expired\"]\n    v9 = [i for i,t in x[\"presented_claims\"] if t<=x[\"claim_deadline\"]]\n    return {'callable-face':v0,'claim-call-cap':v1,'expiry-call-block':v2,'retention-after-completion':v3,'milestone-tranche-release':v4,'surety-substitution-approval':v5,'old-bond-discharge':v6,'guarantee-lot-coverage':v7,'beneficiary-claim-authority':v8,'timely-claim-survives-expiry':v9}\ndef check(label, actual, expected):\n    observations.append({\"check\": label, \"actual\": actual, \"expected\": expected, \"passed\": actual == expected})\nfixtures = [('normal contract', {'face': 30, 'called': 8, 'request': 10, 'paid_claims': 5, 'expired': False, 'completion': False, 'retention': 4, 'milestones': ['ship', 'inspect'], 'done': ['ship'], 'tranches': [12, 18], 'surety': 's1', 'proposed': 's2', 'approved': ['s1'], 'replaced': False, 'guaranteed': ['L1', 'L2'], 'claim_lots': ['L2'], 'returned': 3, 'beneficiary': 'seller', 'claimant': 'seller', 'claim_ids': ['c1', 'c2', 'c1'], 'presented_claims': [['c1', 3], ['c2', 7]], 'claim_deadline': 5}, [12, 24, 36, 48, 60]), ('partly guaranteed claim', {'face': 30, 'called': 8, 'request': 10, 'paid_claims': 5, 'expired': False, 'completion': False, 'retention': 4, 'milestones': ['ship', 'inspect'], 'done': ['ship'], 'tranches': [12, 18], 'surety': 's1', 'proposed': 's2', 'approved': ['s1'], 'replaced': False, 'guaranteed': ['L1', 'L2'], 'claim_lots': ['L1', 'L3'], 'returned': 3, 'beneficiary': 'seller', 'claimant': 'seller', 'claim_ids': ['c1', 'c2', 'c1'], 'presented_claims': [['c1', 3], ['c2', 7]], 'claim_deadline': 5}, [12, 24, 36, 48, 60]), ('claim too large', {'face': 30, 'called': 8, 'request': 40, 'paid_claims': 5, 'expired': False, 'completion': False, 'retention': 4, 'milestones': ['ship', 'inspect'], 'done': ['ship'], 'tranches': [12, 18], 'surety': 's1', 'proposed': 's2', 'approved': ['s1'], 'replaced': False, 'guaranteed': ['L1', 'L2'], 'claim_lots': ['L2'], 'returned': 3, 'beneficiary': 'seller', 'claimant': 'seller', 'claim_ids': ['c1', 'c2', 'c1'], 'presented_claims': [['c1', 3], ['c2', 7]], 'claim_deadline': 5}, [12, 24, 36, 48, 60]), ('bond exhausted', {'face': 30, 'called': 30, 'request': 10, 'paid_claims': 5, 'expired': False, 'completion': False, 'retention': 4, 'milestones': ['ship', 'inspect'], 'done': ['ship'], 'tranches': [12, 18], 'surety': 's1', 'proposed': 's2', 'approved': ['s1'], 'replaced': False, 'guaranteed': ['L1', 'L2'], 'claim_lots': ['L2'], 'returned': 3, 'beneficiary': 'seller', 'claimant': 'seller', 'claim_ids': ['c1', 'c2', 'c1'], 'presented_claims': [['c1', 3], ['c2', 7]], 'claim_deadline': 5}, [12, 24, 36, 48, 60]), ('expired', {'face': 30, 'called': 8, 'request': 10, 'paid_claims': 5, 'expired': True, 'completion': False, 'retention': 4, 'milestones': ['ship', 'inspect'], 'done': ['ship'], 'tranches': [12, 18], 'surety': 's1', 'proposed': 's2', 'approved': ['s1'], 'replaced': False, 'guaranteed': ['L1', 'L2'], 'claim_lots': ['L2'], 'returned': 3, 'beneficiary': 'seller', 'claimant': 'seller', 'claim_ids': ['c1', 'c2', 'c1'], 'presented_claims': [['c1', 3], ['c2', 7]], 'claim_deadline': 5}, [12, 24, 36, 48, 60]), ('completion', {'face': 30, 'called': 8, 'request': 10, 'paid_claims': 5, 'expired': False, 'completion': True, 'retention': 4, 'milestones': ['ship', 'inspect'], 'done': ['ship'], 'tranches': [12, 18], 'surety': 's1', 'proposed': 's2', 'approved': ['s1'], 'replaced': False, 'guaranteed': ['L1', 'L2'], 'claim_lots': ['L2'], 'returned': 3, 'beneficiary': 'seller', 'claimant': 'seller', 'claim_ids': ['c1', 'c2', 'c1'], 'presented_claims': [['c1', 3], ['c2', 7]], 'claim_deadline': 5}, [12, 24, 36, 48, 60]), ('all milestones', {'face': 30, 'called': 8, 'request': 10, 'paid_claims': 5, 'expired': False, 'completion': False, 'retention': 4, 'milestones': ['ship', 'inspect'], 'done': ['ship', 'inspect'], 'tranches': [12, 18], 'surety': 's1', 'proposed': 's2', 'approved': ['s1'], 'replaced': False, 'guaranteed': ['L1', 'L2'], 'claim_lots': ['L2'], 'returned': 3, 'beneficiary': 'seller', 'claimant': 'seller', 'claim_ids': ['c1', 'c2', 'c1'], 'presented_claims': [['c1', 3], ['c2', 7]], 'claim_deadline': 5}, [30, 60, 90, 120, 150]), ('substitution approved', {'face': 30, 'called': 8, 'request': 10, 'paid_claims': 5, 'expired': False, 'completion': False, 'retention': 4, 'milestones': ['ship', 'inspect'], 'done': ['ship'], 'tranches': [12, 18], 'surety': 's1', 'proposed': 's2', 'approved': ['s1', 's2'], 'replaced': False, 'guaranteed': ['L1', 'L2'], 'claim_lots': ['L2'], 'returned': 3, 'beneficiary': 'seller', 'claimant': 'seller', 'claim_ids': ['c1', 'c2', 'c1'], 'presented_claims': [['c1', 3], ['c2', 7]], 'claim_deadline': 5}, [12, 24, 36, 48, 60]), ('substitution finalized', {'face': 30, 'called': 8, 'request': 10, 'paid_claims': 5, 'expired': False, 'completion': False, 'retention': 4, 'milestones': ['ship', 'inspect'], 'done': ['ship'], 'tranches': [12, 18], 'surety': 's1', 'proposed': 's2', 'approved': ['s1'], 'replaced': True, 'guaranteed': ['L1', 'L2'], 'claim_lots': ['L2'], 'returned': 3, 'beneficiary': 'seller', 'claimant': 'seller', 'claim_ids': ['c1', 'c2', 'c1'], 'presented_claims': [['c1', 3], ['c2', 7]], 'claim_deadline': 5}, [12, 24, 36, 48, 60])]\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))['milestone-tranche-release'], 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-performance-bond-milestone-tranche-release","generated_at":"2026-09-29T14:46:12.605257+00:00","license":"CC0-1.0","python":"3.12.14","seed":1,"split":"open-access"},"relevance":"Offline administrative auction model for software failure analysis.","root_cause":"One completed milestone releases every bond tranche.","sha256":"ffdd7f549d05ae45db60836d0efa5c6a26d9e4e31395154af0d0ba071af2166b","title":"Performance bond: milestone tranche release · 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":39.772,"exit_code":1,"observations":[{"actual":18,"check":"normal contract","expected":12,"passed":false},{"actual":18,"check":"partly guaranteed claim","expected":12,"passed":false},{"actual":18,"check":"claim too large","expected":12,"passed":false},{"actual":18,"check":"bond exhausted","expected":12,"passed":false},{"actual":18,"check":"expired","expected":12,"passed":false},{"actual":18,"check":"completion","expected":12,"passed":false},{"actual":0,"check":"all milestones","expected":30,"passed":false},{"actual":18,"check":"substitution approved","expected":12,"passed":false},{"actual":18,"check":"substitution finalized","expected":12,"passed":false}],"passed":false,"stderr":"","stdout":"{\"observations\": [{\"check\": \"normal contract\", \"actual\": 18, \"expected\": 12, \"passed\": false}, {\"check\": \"partly guaranteed claim\", \"actual\": 18, \"expected\": 12, \"passed\": false}, {\"check\": \"claim too large\", \"actual\": 18, \"expected\": 12, \"passed\": false}, {\"check\": \"bond exhausted\", \"actual\": 18, \"expected\": 12, \"passed\": false}, {\"check\": \"expired\", \"actual\": 18, \"expected\": 12, \"passed\": false}, {\"check\": \"completion\", \"actual\": 18, \"expected\": 12, \"passed\": false}, {\"check\": \"all milestones\", \"actual\": 0, \"expected\": 30, \"passed\": false}, {\"check\": \"substitution approved\", \"actual\": 18, \"expected\": 12, \"passed\": false}, {\"check\": \"substitution finalized\", \"actual\": 18, \"expected\": 12, \"passed\": false}], \"passed\": false}\n"},"broken":{"elapsed_ms":41.845,"exit_code":1,"observations":[{"actual":30,"check":"normal contract","expected":12,"passed":false},{"actual":30,"check":"partly guaranteed claim","expected":12,"passed":false},{"actual":30,"check":"claim too large","expected":12,"passed":false},{"actual":30,"check":"bond exhausted","expected":12,"passed":false},{"actual":30,"check":"expired","expected":12,"passed":false},{"actual":30,"check":"completion","expected":12,"passed":false},{"actual":30,"check":"all milestones","expected":30,"passed":true},{"actual":30,"check":"substitution approved","expected":12,"passed":false},{"actual":30,"check":"substitution finalized","expected":12,"passed":false}],"passed":false,"stderr":"","stdout":"{\"observations\": [{\"check\": \"normal contract\", \"actual\": 30, \"expected\": 12, \"passed\": false}, {\"check\": \"partly guaranteed claim\", \"actual\": 30, \"expected\": 12, \"passed\": false}, {\"check\": \"claim too large\", \"actual\": 30, \"expected\": 12, \"passed\": false}, {\"check\": \"bond exhausted\", \"actual\": 30, \"expected\": 12, \"passed\": false}, {\"check\": \"expired\", \"actual\": 30, \"expected\": 12, \"passed\": false}, {\"check\": \"completion\", \"actual\": 30, \"expected\": 12, \"passed\": false}, {\"check\": \"all milestones\", \"actual\": 30, \"expected\": 30, \"passed\": true}, {\"check\": \"substitution approved\", \"actual\": 30, \"expected\": 12, \"passed\": false}, {\"check\": \"substitution finalized\", \"actual\": 30, \"expected\": 12, \"passed\": false}], \"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."}}