FA-57011 / Auction allocation rules / Open access
Performance bond: milestone tranche release · case 01
One completed milestone releases every bond tranche.
ROOT CAUSE
One completed milestone releases every bond tranche.
VERIFIED REPAIR
For milestone tranche release, apply the stipulated decision sum(q for m,q in zip(x["milestones"],x["tranches"]) if m in x["done"]).
Unsuccessful 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.
Case 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"]).
Why this case matters
Offline administrative auction model for software failure analysis.
1 / The failure
Exit 1"""Failure Map reference implementation. Python standard library only."""
import json
N = 1
observations = []
def solve(x):
v0 = max(0,x["face"]-x["called"])
v1 = min(x["request"],max(0,x["face"]-x["called"]))
v2 = 0 if x["expired"] else min(x["request"],max(0,x["face"]-x["called"]))
v3 = x["retention"] if x["completion"] else x["face"]
v4 = sum(x["tranches"]) if x["done"] else 0
v5 = x["proposed"] if x["proposed"] in x["approved"] else x["surety"]
v6 = x["replaced"] and x["proposed"] in x["approved"]
v7 = set(x["claim_lots"])<=set(x["guaranteed"])
v8 = x["claimant"]==x["beneficiary"] and not x["expired"]
v9 = [i for i,t in x["presented_claims"] if t<=x["claim_deadline"]]
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}
def check(label, actual, expected):
observations.append({"check": label, "actual": actual, "expected": expected, "passed": actual == expected})
fixtures = [('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])]
def vary(value):
if type(value) is int: return value*N
if isinstance(value,list): return [vary(v) for v in value]
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()}
return value
for label, request, expected in fixtures:
check(label, solve(vary(request))['milestone-tranche-release'], expected[N-1])
print(json.dumps({"observations": observations, "passed": all(x["passed"] for x in observations)}, ensure_ascii=False))
raise SystemExit(0 if all(x["passed"] for x in observations) else 1)
| Boundary fixture | Actual | Expected | Outcome |
|---|---|---|---|
| normal contract | 30 | 12 | Failed |
| partly guaranteed claim | 30 | 12 | Failed |
| claim too large | 30 | 12 | Failed |
| bond exhausted | 30 | 12 | Failed |
| expired | 30 | 12 | Failed |
| completion | 30 | 12 | Failed |
| all milestones | 30 | 30 | Passed |
| substitution approved | 30 | 12 | Failed |
| substitution finalized | 30 | 12 | Failed |
SHA-256 / 66f05fd1c1e53bee6c5782fe9d12c595c4082d25d6098105006b348966dbeb9e
2 / The unsuccessful fix
Exit 1"""Failure Map reference implementation. Python standard library only."""
import json
N = 1
observations = []
def solve(x):
v0 = max(0,x["face"]-x["called"])
v1 = min(x["request"],max(0,x["face"]-x["called"]))
v2 = 0 if x["expired"] else min(x["request"],max(0,x["face"]-x["called"]))
v3 = x["retention"] if x["completion"] else x["face"]
v4 = sum(q for m,q in zip(x["milestones"],x["tranches"]) if m not in x["done"])
v5 = x["proposed"] if x["proposed"] in x["approved"] else x["surety"]
v6 = x["replaced"] and x["proposed"] in x["approved"]
v7 = set(x["claim_lots"])<=set(x["guaranteed"])
v8 = x["claimant"]==x["beneficiary"] and not x["expired"]
v9 = [i for i,t in x["presented_claims"] if t<=x["claim_deadline"]]
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}
def check(label, actual, expected):
observations.append({"check": label, "actual": actual, "expected": expected, "passed": actual == expected})
fixtures = [('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])]
def vary(value):
if type(value) is int: return value*N
if isinstance(value,list): return [vary(v) for v in value]
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()}
return value
for label, request, expected in fixtures:
check(label, solve(vary(request))['milestone-tranche-release'], expected[N-1])
print(json.dumps({"observations": observations, "passed": all(x["passed"] for x in observations)}, ensure_ascii=False))
raise SystemExit(0 if all(x["passed"] for x in observations) else 1)
| Boundary fixture | Actual | Expected | Outcome |
|---|---|---|---|
| normal contract | 18 | 12 | Failed |
| partly guaranteed claim | 18 | 12 | Failed |
| claim too large | 18 | 12 | Failed |
| bond exhausted | 18 | 12 | Failed |
| expired | 18 | 12 | Failed |
| completion | 18 | 12 | Failed |
| all milestones | 0 | 30 | Failed |
| substitution approved | 18 | 12 | Failed |
| substitution finalized | 18 | 12 | Failed |
SHA-256 / de659458c50dca20c7ea7f4a7c276719f4f1c7b85e34d7407161bfb97b0d20b3
3 / The verified repair
Exit 0"""Failure Map reference implementation. Python standard library only."""
import json
N = 1
observations = []
def solve(x):
v0 = max(0,x["face"]-x["called"])
v1 = min(x["request"],max(0,x["face"]-x["called"]))
v2 = 0 if x["expired"] else min(x["request"],max(0,x["face"]-x["called"]))
v3 = x["retention"] if x["completion"] else x["face"]
v4 = sum(q for m,q in zip(x["milestones"],x["tranches"]) if m in x["done"])
v5 = x["proposed"] if x["proposed"] in x["approved"] else x["surety"]
v6 = x["replaced"] and x["proposed"] in x["approved"]
v7 = set(x["claim_lots"])<=set(x["guaranteed"])
v8 = x["claimant"]==x["beneficiary"] and not x["expired"]
v9 = [i for i,t in x["presented_claims"] if t<=x["claim_deadline"]]
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}
def check(label, actual, expected):
observations.append({"check": label, "actual": actual, "expected": expected, "passed": actual == expected})
fixtures = [('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])]
def vary(value):
if type(value) is int: return value*N
if isinstance(value,list): return [vary(v) for v in value]
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()}
return value
for label, request, expected in fixtures:
check(label, solve(vary(request))['milestone-tranche-release'], expected[N-1])
print(json.dumps({"observations": observations, "passed": all(x["passed"] for x in observations)}, ensure_ascii=False))
raise SystemExit(0 if all(x["passed"] for x in observations) else 1)
| Boundary fixture | Actual | Expected | Outcome |
|---|---|---|---|
| normal contract | 12 | 12 | Passed |
| partly guaranteed claim | 12 | 12 | Passed |
| claim too large | 12 | 12 | Passed |
| bond exhausted | 12 | 12 | Passed |
| expired | 12 | 12 | Passed |
| completion | 12 | 12 | Passed |
| all milestones | 30 | 30 | Passed |
| substitution approved | 12 | 12 | Passed |
| substitution finalized | 12 | 12 | Passed |
SHA-256 / 129575c6514767021d4ccc8c85ecdacd95bf135bd64685197f9a35d0d754d11a
Verification & scope
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.
Observations recorded using Python 3.12.14 at 2026-09-29T14:46:12.605257+00:00.
Case digest / 652713683dca1ac2b023701932866c3541a7e0f09982386ffc5b3802ee2da57b