FA-56881 / Auction allocation rules / Open access

Deposit admission: topup posting · case 01

Topups restore an expired deposit or post before confirmation.

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ROOT CAUSE

Topups restore an expired deposit or post before confirmation.

VERIFIED REPAIR

For topup posting, apply the stipulated decision 0 if x["expired"] else x["cleared"]+(x["topup"] if x["confirmed"] else 0).

Unsuccessful approach: The attempted repair uses x["cleared"]+(x["topup"] if x["confirmed"] else 0); the explicit regression cases demonstrate that this still violates the stipulated auction rule.

Case contract

Toy bidder deposits consist of cleared, pending and restricted tranches. Deposits are auction-scoped and denomination-specific. Admission capacity is per bidder; a waiver substitutes for a required deposit without turning a pending transfer into cash. Named decision topup-posting: For topup posting, apply the stipulated decision 0 if x["expired"] else x["cleared"]+(x["topup"] if x["confirmed"] else 0).

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 = x["cleared"]>=x["required"]
    v1 = max(0,x["cleared"]-x["restricted"])
    v2 = x["waiver"] or x["cleared"]>=x["required"]
    v3 = x["auction"]==x["deposit_auction"]
    v4 = x["currency"]==x["deposit_currency"]
    v5 = max(0,x["cleared"]-x["chargeback"])
    v6 = max(0,x["cleared"]-x["locked"])
    v7 = x["owner"]==x["beneficiary"] and x["owner"] in x["owners"]
    v8 = x["cleared"]+x["topup"]
    v9 = min(x["refunded"],max(0,x["cleared"]-x["locked"]))
    return {'cleared-admission':v0,'restricted-tranche':v1,'deposit-waiver-admission':v2,'auction-scope':v3,'denomination-scope':v4,'chargeback-recovery':v5,'withdrawable-deposit':v6,'beneficial-owner':v7,'topup-posting':v8,'refund-available-ceiling':v9}
def check(label, actual, expected):
    observations.append({"check": label, "actual": actual, "expected": expected, "passed": actual == expected})
fixtures = [('normal contract', {'cleared': 20, 'pending': 15, 'restricted': 7, 'required': 25, 'waiver': False, 'auction': 'A', 'deposit_auction': 'A', 'currency': 'TOK', 'deposit_currency': 'TOK', 'chargeback': 3, 'locked': 6, 'owners': ['a', 'b'], 'owner': 'a', 'beneficiary': 'a', 'expired': False, 'topup': 8, 'confirmed': False, 'refunded': 4}, [20, 40, 60, 80, 100]), ('cleared sufficient', {'cleared': 20, 'pending': 15, 'restricted': 7, 'required': 10, 'waiver': False, 'auction': 'A', 'deposit_auction': 'A', 'currency': 'TOK', 'deposit_currency': 'TOK', 'chargeback': 3, 'locked': 6, 'owners': ['a', 'b'], 'owner': 'a', 'beneficiary': 'a', 'expired': False, 'topup': 8, 'confirmed': False, 'refunded': 4}, [20, 40, 60, 80, 100]), ('expired deposit', {'cleared': 20, 'pending': 15, 'restricted': 7, 'required': 25, 'waiver': False, 'auction': 'A', 'deposit_auction': 'A', 'currency': 'TOK', 'deposit_currency': 'TOK', 'chargeback': 3, 'locked': 6, 'owners': ['a', 'b'], 'owner': 'a', 'beneficiary': 'a', 'expired': True, 'topup': 8, 'confirmed': False, 'refunded': 4}, [0, 0, 0, 0, 0]), ('cleared sufficient / expired deposit', {'cleared': 20, 'pending': 15, 'restricted': 7, 'required': 10, 'waiver': False, 'auction': 'A', 'deposit_auction': 'A', 'currency': 'TOK', 'deposit_currency': 'TOK', 'chargeback': 3, 'locked': 6, 'owners': ['a', 'b'], 'owner': 'a', 'beneficiary': 'a', 'expired': True, 'topup': 8, 'confirmed': False, 'refunded': 4}, [0, 0, 0, 0, 0]), ('deposit waived', {'cleared': 20, 'pending': 15, 'restricted': 7, 'required': 25, 'waiver': True, 'auction': 'A', 'deposit_auction': 'A', 'currency': 'TOK', 'deposit_currency': 'TOK', 'chargeback': 3, 'locked': 6, 'owners': ['a', 'b'], 'owner': 'a', 'beneficiary': 'a', 'expired': False, 'topup': 8, 'confirmed': False, 'refunded': 4}, [20, 40, 60, 80, 100]), ('wrong auction', {'cleared': 20, 'pending': 15, 'restricted': 7, 'required': 25, 'waiver': False, 'auction': 'A', 'deposit_auction': 'B', 'currency': 'TOK', 'deposit_currency': 'TOK', 'chargeback': 3, 'locked': 6, 'owners': ['a', 'b'], 'owner': 'a', 'beneficiary': 'a', 'expired': False, 'topup': 8, 'confirmed': False, 'refunded': 4}, [20, 40, 60, 80, 100]), ('wrong denomination', {'cleared': 20, 'pending': 15, 'restricted': 7, 'required': 25, 'waiver': False, 'auction': 'A', 'deposit_auction': 'A', 'currency': 'TOK', 'deposit_currency': 'ALT', 'chargeback': 3, 'locked': 6, 'owners': ['a', 'b'], 'owner': 'a', 'beneficiary': 'a', 'expired': False, 'topup': 8, 'confirmed': False, 'refunded': 4}, [20, 40, 60, 80, 100]), ('topup confirmed', {'cleared': 20, 'pending': 15, 'restricted': 7, 'required': 25, 'waiver': False, 'auction': 'A', 'deposit_auction': 'A', 'currency': 'TOK', 'deposit_currency': 'TOK', 'chargeback': 3, 'locked': 6, 'owners': ['a', 'b'], 'owner': 'a', 'beneficiary': 'a', 'expired': False, 'topup': 8, 'confirmed': True, 'refunded': 4}, [28, 56, 84, 112, 140]), ('chargeback consumes balance', {'cleared': 20, 'pending': 15, 'restricted': 7, 'required': 25, 'waiver': False, 'auction': 'A', 'deposit_auction': 'A', 'currency': 'TOK', 'deposit_currency': 'TOK', 'chargeback': 30, 'locked': 6, 'owners': ['a', 'b'], 'owner': 'a', 'beneficiary': 'a', 'expired': False, 'topup': 8, 'confirmed': False, 'refunded': 4}, [20, 40, 60, 80, 100]), ('all locked', {'cleared': 20, 'pending': 15, 'restricted': 7, 'required': 25, 'waiver': False, 'auction': 'A', 'deposit_auction': 'A', 'currency': 'TOK', 'deposit_currency': 'TOK', 'chargeback': 3, 'locked': 30, 'owners': ['a', 'b'], 'owner': 'a', 'beneficiary': 'a', 'expired': False, 'topup': 8, 'confirmed': False, 'refunded': 4}, [20, 40, 60, 80, 100])]
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))['topup-posting'], 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	`28`	`20`	Failed
cleared sufficient	`28`	`20`	Failed
expired deposit	`28`	`0`	Failed
cleared sufficient / expired deposit	`28`	`0`	Failed
deposit waived	`28`	`20`	Failed
wrong auction	`28`	`20`	Failed
wrong denomination	`28`	`20`	Failed
topup confirmed	`28`	`28`	Passed
chargeback consumes balance	`28`	`20`	Failed
all locked	`28`	`20`	Failed

SHA-256 / a54628025207c6951efeaca9e5ac2137c684175c8cfea1937b3c786952f91758

2 / The unsuccessful fix

Exit 1

"""Failure Map reference implementation. Python standard library only."""
import json

N = 1
observations = []
def solve(x):
    v0 = x["cleared"]>=x["required"]
    v1 = max(0,x["cleared"]-x["restricted"])
    v2 = x["waiver"] or x["cleared"]>=x["required"]
    v3 = x["auction"]==x["deposit_auction"]
    v4 = x["currency"]==x["deposit_currency"]
    v5 = max(0,x["cleared"]-x["chargeback"])
    v6 = max(0,x["cleared"]-x["locked"])
    v7 = x["owner"]==x["beneficiary"] and x["owner"] in x["owners"]
    v8 = x["cleared"]+(x["topup"] if x["confirmed"] else 0)
    v9 = min(x["refunded"],max(0,x["cleared"]-x["locked"]))
    return {'cleared-admission':v0,'restricted-tranche':v1,'deposit-waiver-admission':v2,'auction-scope':v3,'denomination-scope':v4,'chargeback-recovery':v5,'withdrawable-deposit':v6,'beneficial-owner':v7,'topup-posting':v8,'refund-available-ceiling':v9}
def check(label, actual, expected):
    observations.append({"check": label, "actual": actual, "expected": expected, "passed": actual == expected})
fixtures = [('normal contract', {'cleared': 20, 'pending': 15, 'restricted': 7, 'required': 25, 'waiver': False, 'auction': 'A', 'deposit_auction': 'A', 'currency': 'TOK', 'deposit_currency': 'TOK', 'chargeback': 3, 'locked': 6, 'owners': ['a', 'b'], 'owner': 'a', 'beneficiary': 'a', 'expired': False, 'topup': 8, 'confirmed': False, 'refunded': 4}, [20, 40, 60, 80, 100]), ('cleared sufficient', {'cleared': 20, 'pending': 15, 'restricted': 7, 'required': 10, 'waiver': False, 'auction': 'A', 'deposit_auction': 'A', 'currency': 'TOK', 'deposit_currency': 'TOK', 'chargeback': 3, 'locked': 6, 'owners': ['a', 'b'], 'owner': 'a', 'beneficiary': 'a', 'expired': False, 'topup': 8, 'confirmed': False, 'refunded': 4}, [20, 40, 60, 80, 100]), ('expired deposit', {'cleared': 20, 'pending': 15, 'restricted': 7, 'required': 25, 'waiver': False, 'auction': 'A', 'deposit_auction': 'A', 'currency': 'TOK', 'deposit_currency': 'TOK', 'chargeback': 3, 'locked': 6, 'owners': ['a', 'b'], 'owner': 'a', 'beneficiary': 'a', 'expired': True, 'topup': 8, 'confirmed': False, 'refunded': 4}, [0, 0, 0, 0, 0]), ('cleared sufficient / expired deposit', {'cleared': 20, 'pending': 15, 'restricted': 7, 'required': 10, 'waiver': False, 'auction': 'A', 'deposit_auction': 'A', 'currency': 'TOK', 'deposit_currency': 'TOK', 'chargeback': 3, 'locked': 6, 'owners': ['a', 'b'], 'owner': 'a', 'beneficiary': 'a', 'expired': True, 'topup': 8, 'confirmed': False, 'refunded': 4}, [0, 0, 0, 0, 0]), ('deposit waived', {'cleared': 20, 'pending': 15, 'restricted': 7, 'required': 25, 'waiver': True, 'auction': 'A', 'deposit_auction': 'A', 'currency': 'TOK', 'deposit_currency': 'TOK', 'chargeback': 3, 'locked': 6, 'owners': ['a', 'b'], 'owner': 'a', 'beneficiary': 'a', 'expired': False, 'topup': 8, 'confirmed': False, 'refunded': 4}, [20, 40, 60, 80, 100]), ('wrong auction', {'cleared': 20, 'pending': 15, 'restricted': 7, 'required': 25, 'waiver': False, 'auction': 'A', 'deposit_auction': 'B', 'currency': 'TOK', 'deposit_currency': 'TOK', 'chargeback': 3, 'locked': 6, 'owners': ['a', 'b'], 'owner': 'a', 'beneficiary': 'a', 'expired': False, 'topup': 8, 'confirmed': False, 'refunded': 4}, [20, 40, 60, 80, 100]), ('wrong denomination', {'cleared': 20, 'pending': 15, 'restricted': 7, 'required': 25, 'waiver': False, 'auction': 'A', 'deposit_auction': 'A', 'currency': 'TOK', 'deposit_currency': 'ALT', 'chargeback': 3, 'locked': 6, 'owners': ['a', 'b'], 'owner': 'a', 'beneficiary': 'a', 'expired': False, 'topup': 8, 'confirmed': False, 'refunded': 4}, [20, 40, 60, 80, 100]), ('topup confirmed', {'cleared': 20, 'pending': 15, 'restricted': 7, 'required': 25, 'waiver': False, 'auction': 'A', 'deposit_auction': 'A', 'currency': 'TOK', 'deposit_currency': 'TOK', 'chargeback': 3, 'locked': 6, 'owners': ['a', 'b'], 'owner': 'a', 'beneficiary': 'a', 'expired': False, 'topup': 8, 'confirmed': True, 'refunded': 4}, [28, 56, 84, 112, 140]), ('chargeback consumes balance', {'cleared': 20, 'pending': 15, 'restricted': 7, 'required': 25, 'waiver': False, 'auction': 'A', 'deposit_auction': 'A', 'currency': 'TOK', 'deposit_currency': 'TOK', 'chargeback': 30, 'locked': 6, 'owners': ['a', 'b'], 'owner': 'a', 'beneficiary': 'a', 'expired': False, 'topup': 8, 'confirmed': False, 'refunded': 4}, [20, 40, 60, 80, 100]), ('all locked', {'cleared': 20, 'pending': 15, 'restricted': 7, 'required': 25, 'waiver': False, 'auction': 'A', 'deposit_auction': 'A', 'currency': 'TOK', 'deposit_currency': 'TOK', 'chargeback': 3, 'locked': 30, 'owners': ['a', 'b'], 'owner': 'a', 'beneficiary': 'a', 'expired': False, 'topup': 8, 'confirmed': False, 'refunded': 4}, [20, 40, 60, 80, 100])]
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))['topup-posting'], 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	`20`	`20`	Passed
cleared sufficient	`20`	`20`	Passed
expired deposit	`20`	`0`	Failed
cleared sufficient / expired deposit	`20`	`0`	Failed
deposit waived	`20`	`20`	Passed
wrong auction	`20`	`20`	Passed
wrong denomination	`20`	`20`	Passed
topup confirmed	`28`	`28`	Passed
chargeback consumes balance	`20`	`20`	Passed
all locked	`20`	`20`	Passed

SHA-256 / ded574a3e63faedc3b560f27901b8c95de94b8a52dab6d9cb818c05066c4507c

3 / The verified repair

Exit 0

"""Failure Map reference implementation. Python standard library only."""
import json

N = 1
observations = []
def solve(x):
    v0 = x["cleared"]>=x["required"]
    v1 = max(0,x["cleared"]-x["restricted"])
    v2 = x["waiver"] or x["cleared"]>=x["required"]
    v3 = x["auction"]==x["deposit_auction"]
    v4 = x["currency"]==x["deposit_currency"]
    v5 = max(0,x["cleared"]-x["chargeback"])
    v6 = max(0,x["cleared"]-x["locked"])
    v7 = x["owner"]==x["beneficiary"] and x["owner"] in x["owners"]
    v8 = 0 if x["expired"] else x["cleared"]+(x["topup"] if x["confirmed"] else 0)
    v9 = min(x["refunded"],max(0,x["cleared"]-x["locked"]))
    return {'cleared-admission':v0,'restricted-tranche':v1,'deposit-waiver-admission':v2,'auction-scope':v3,'denomination-scope':v4,'chargeback-recovery':v5,'withdrawable-deposit':v6,'beneficial-owner':v7,'topup-posting':v8,'refund-available-ceiling':v9}
def check(label, actual, expected):
    observations.append({"check": label, "actual": actual, "expected": expected, "passed": actual == expected})
fixtures = [('normal contract', {'cleared': 20, 'pending': 15, 'restricted': 7, 'required': 25, 'waiver': False, 'auction': 'A', 'deposit_auction': 'A', 'currency': 'TOK', 'deposit_currency': 'TOK', 'chargeback': 3, 'locked': 6, 'owners': ['a', 'b'], 'owner': 'a', 'beneficiary': 'a', 'expired': False, 'topup': 8, 'confirmed': False, 'refunded': 4}, [20, 40, 60, 80, 100]), ('cleared sufficient', {'cleared': 20, 'pending': 15, 'restricted': 7, 'required': 10, 'waiver': False, 'auction': 'A', 'deposit_auction': 'A', 'currency': 'TOK', 'deposit_currency': 'TOK', 'chargeback': 3, 'locked': 6, 'owners': ['a', 'b'], 'owner': 'a', 'beneficiary': 'a', 'expired': False, 'topup': 8, 'confirmed': False, 'refunded': 4}, [20, 40, 60, 80, 100]), ('expired deposit', {'cleared': 20, 'pending': 15, 'restricted': 7, 'required': 25, 'waiver': False, 'auction': 'A', 'deposit_auction': 'A', 'currency': 'TOK', 'deposit_currency': 'TOK', 'chargeback': 3, 'locked': 6, 'owners': ['a', 'b'], 'owner': 'a', 'beneficiary': 'a', 'expired': True, 'topup': 8, 'confirmed': False, 'refunded': 4}, [0, 0, 0, 0, 0]), ('cleared sufficient / expired deposit', {'cleared': 20, 'pending': 15, 'restricted': 7, 'required': 10, 'waiver': False, 'auction': 'A', 'deposit_auction': 'A', 'currency': 'TOK', 'deposit_currency': 'TOK', 'chargeback': 3, 'locked': 6, 'owners': ['a', 'b'], 'owner': 'a', 'beneficiary': 'a', 'expired': True, 'topup': 8, 'confirmed': False, 'refunded': 4}, [0, 0, 0, 0, 0]), ('deposit waived', {'cleared': 20, 'pending': 15, 'restricted': 7, 'required': 25, 'waiver': True, 'auction': 'A', 'deposit_auction': 'A', 'currency': 'TOK', 'deposit_currency': 'TOK', 'chargeback': 3, 'locked': 6, 'owners': ['a', 'b'], 'owner': 'a', 'beneficiary': 'a', 'expired': False, 'topup': 8, 'confirmed': False, 'refunded': 4}, [20, 40, 60, 80, 100]), ('wrong auction', {'cleared': 20, 'pending': 15, 'restricted': 7, 'required': 25, 'waiver': False, 'auction': 'A', 'deposit_auction': 'B', 'currency': 'TOK', 'deposit_currency': 'TOK', 'chargeback': 3, 'locked': 6, 'owners': ['a', 'b'], 'owner': 'a', 'beneficiary': 'a', 'expired': False, 'topup': 8, 'confirmed': False, 'refunded': 4}, [20, 40, 60, 80, 100]), ('wrong denomination', {'cleared': 20, 'pending': 15, 'restricted': 7, 'required': 25, 'waiver': False, 'auction': 'A', 'deposit_auction': 'A', 'currency': 'TOK', 'deposit_currency': 'ALT', 'chargeback': 3, 'locked': 6, 'owners': ['a', 'b'], 'owner': 'a', 'beneficiary': 'a', 'expired': False, 'topup': 8, 'confirmed': False, 'refunded': 4}, [20, 40, 60, 80, 100]), ('topup confirmed', {'cleared': 20, 'pending': 15, 'restricted': 7, 'required': 25, 'waiver': False, 'auction': 'A', 'deposit_auction': 'A', 'currency': 'TOK', 'deposit_currency': 'TOK', 'chargeback': 3, 'locked': 6, 'owners': ['a', 'b'], 'owner': 'a', 'beneficiary': 'a', 'expired': False, 'topup': 8, 'confirmed': True, 'refunded': 4}, [28, 56, 84, 112, 140]), ('chargeback consumes balance', {'cleared': 20, 'pending': 15, 'restricted': 7, 'required': 25, 'waiver': False, 'auction': 'A', 'deposit_auction': 'A', 'currency': 'TOK', 'deposit_currency': 'TOK', 'chargeback': 30, 'locked': 6, 'owners': ['a', 'b'], 'owner': 'a', 'beneficiary': 'a', 'expired': False, 'topup': 8, 'confirmed': False, 'refunded': 4}, [20, 40, 60, 80, 100]), ('all locked', {'cleared': 20, 'pending': 15, 'restricted': 7, 'required': 25, 'waiver': False, 'auction': 'A', 'deposit_auction': 'A', 'currency': 'TOK', 'deposit_currency': 'TOK', 'chargeback': 3, 'locked': 30, 'owners': ['a', 'b'], 'owner': 'a', 'beneficiary': 'a', 'expired': False, 'topup': 8, 'confirmed': False, 'refunded': 4}, [20, 40, 60, 80, 100])]
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))['topup-posting'], 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	`20`	`20`	Passed
cleared sufficient	`20`	`20`	Passed
expired deposit	`0`	`0`	Passed
cleared sufficient / expired deposit	`0`	`0`	Passed
deposit waived	`20`	`20`	Passed
wrong auction	`20`	`20`	Passed
wrong denomination	`20`	`20`	Passed
topup confirmed	`28`	`28`	Passed
chargeback consumes balance	`20`	`20`	Passed
all locked	`20`	`20`	Passed

SHA-256 / 903773daff32059d6784f9f42c3bad04026f3c1f67bc3a20a844246d8332e4c1

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 2026-09-29T14:46:11.339008+00:00.

Case digest / bf1cea6ae7e34a4e8183738d4c9bd05c0b88de878efce90619d9b0203a2f6fd3