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FA-56756 / Auction allocation rules / Open access

Withdrawal liability: notice penalty · case 01

Notice at the contractual cutoff is wrongly penalized.

Verified by executionVariant 1 · 10 checks per implementationDownload source bundle ↓JSON ↗

ROOT CAUSE

Notice at the contractual cutoff is wrongly penalized.

VERIFIED REPAIR

For notice penalty, apply the stipulated decision 0 if x["notice"]<=x["cutoff"] else x["deposit"].

Unsuccessful approach: The attempted repair uses 0 if x["notice"]>=x["cutoff"] else x["deposit"]; the explicit regression cases demonstrate that this still violates the stipulated auction rule.

Case contract

A toy auction withdrawal policy distinguishes voluntary withdrawal before award, excused withdrawal, replacement proceeds, paid deposits and caps on liquidated liability. Nonnegative integer credits are used; no legal or financial interpretation is intended. Named decision notice-penalty: For notice penalty, apply the stipulated decision 0 if x["notice"]<=x["cutoff"] else x["deposit"].

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["bid"]-x["resale"])
    v1 = 0 if x["excused"] else x["fee"]
    v2 = max(0,x["bid"]-x["resale"]) if x["awarded"] else 0
    v3 = 0 if x["notice"]<x["cutoff"] else x["deposit"]
    v4 = max(0,x["bid"]-x["resale"]-x["deposit"])
    v5 = max(0,min(x["cap"],max(0,x["bid"]-x["resale"])+x["fee"])-x["already_paid"])
    v6 = x["bond"] if x["forfeit"] and not x["released"] else 0
    v7 = max(0,x["awarded_units"]-x["returned_units"])
    v8 = min(x["withdrawn_units"],max(0,x["awarded_units"]-x["returned_units"]))
    v9 = [b for b in dict.fromkeys(b for op,b in x["events"]) if [op for op,c in x["events"] if c==b][-1]=="withdraw"]
    return {'resale-shortfall':v0,'excused-fee-waiver':v1,'award-liability-gate':v2,'notice-penalty':v3,'deposit-offset':v4,'paid-liability-credit':v5,'released-bond-exclusion':v6,'unreturned-award-units':v7,'withdrawal-unit-cap':v8,'reinstatement-after-withdrawal':v9}
def check(label, actual, expected):
    observations.append({"check": label, "actual": actual, "expected": expected, "passed": actual == expected})
fixtures = [('exact notice cutoff', {'bid': 30, 'resale': 18, 'deposit': 8, 'fee': 3, 'excused': False, 'awarded': True, 'notice': 4, 'cutoff': 4, 'already_paid': 2, 'cap': 20, 'released': False, 'withdrawn_units': 2, 'awarded_units': 5, 'returned_units': 1, 'bond': 6, 'forfeit': True, 'withdrawals': ['a', 'b', 'a'], 'events': [['withdraw', 'a'], ['reinstate', 'a'], ['withdraw', 'b']]}, [0, 0, 0, 0, 0]), ('notice order retained / exact notice cutoff', {'bid': 30, 'resale': 18, 'deposit': 8, 'fee': 3, 'excused': False, 'awarded': True, 'notice': 4, 'cutoff': 4, 'already_paid': 2, 'cap': 20, 'released': False, 'withdrawn_units': 2, 'awarded_units': 5, 'returned_units': 1, 'bond': 6, 'forfeit': True, 'withdrawals': ['b', 'a', 'b'], 'events': [['withdraw', 'a'], ['reinstate', 'a'], ['withdraw', 'b']]}, [0, 0, 0, 0, 0]), ('normal contract', {'bid': 30, 'resale': 18, 'deposit': 8, 'fee': 3, 'excused': False, 'awarded': True, 'notice': 5, 'cutoff': 4, 'already_paid': 2, 'cap': 20, 'released': False, 'withdrawn_units': 2, 'awarded_units': 5, 'returned_units': 1, 'bond': 6, 'forfeit': True, 'withdrawals': ['a', 'b', 'a'], 'events': [['withdraw', 'a'], ['reinstate', 'a'], ['withdraw', 'b']]}, [8, 16, 24, 32, 40]), ('notice order retained', {'bid': 30, 'resale': 18, 'deposit': 8, 'fee': 3, 'excused': False, 'awarded': True, 'notice': 5, 'cutoff': 4, 'already_paid': 2, 'cap': 20, 'released': False, 'withdrawn_units': 2, 'awarded_units': 5, 'returned_units': 1, 'bond': 6, 'forfeit': True, 'withdrawals': ['b', 'a', 'b'], 'events': [['withdraw', 'a'], ['reinstate', 'a'], ['withdraw', 'b']]}, [8, 16, 24, 32, 40]), ('resale surplus', {'bid': 30, 'resale': 40, 'deposit': 8, 'fee': 3, 'excused': False, 'awarded': True, 'notice': 5, 'cutoff': 4, 'already_paid': 2, 'cap': 20, 'released': False, 'withdrawn_units': 2, 'awarded_units': 5, 'returned_units': 1, 'bond': 6, 'forfeit': True, 'withdrawals': ['a', 'b', 'a'], 'events': [['withdraw', 'a'], ['reinstate', 'a'], ['withdraw', 'b']]}, [8, 16, 24, 32, 40]), ('excused default', {'bid': 30, 'resale': 18, 'deposit': 8, 'fee': 3, 'excused': True, 'awarded': True, 'notice': 5, 'cutoff': 4, 'already_paid': 2, 'cap': 20, 'released': False, 'withdrawn_units': 2, 'awarded_units': 5, 'returned_units': 1, 'bond': 6, 'forfeit': True, 'withdrawals': ['a', 'b', 'a'], 'events': [['withdraw', 'a'], ['reinstate', 'a'], ['withdraw', 'b']]}, [8, 16, 24, 32, 40]), ('before award', {'bid': 30, 'resale': 18, 'deposit': 8, 'fee': 3, 'excused': False, 'awarded': False, 'notice': 5, 'cutoff': 4, 'already_paid': 2, 'cap': 20, 'released': False, 'withdrawn_units': 2, 'awarded_units': 5, 'returned_units': 1, 'bond': 6, 'forfeit': True, 'withdrawals': ['a', 'b', 'a'], 'events': [['withdraw', 'a'], ['reinstate', 'a'], ['withdraw', 'b']]}, [8, 16, 24, 32, 40]), ('timely notice', {'bid': 30, 'resale': 18, 'deposit': 8, 'fee': 3, 'excused': False, 'awarded': True, 'notice': 3, 'cutoff': 4, 'already_paid': 2, 'cap': 20, 'released': False, 'withdrawn_units': 2, 'awarded_units': 5, 'returned_units': 1, 'bond': 6, 'forfeit': True, 'withdrawals': ['a', 'b', 'a'], 'events': [['withdraw', 'a'], ['reinstate', 'a'], ['withdraw', 'b']]}, [0, 0, 0, 0, 0]), ('liability already paid', {'bid': 30, 'resale': 18, 'deposit': 8, 'fee': 3, 'excused': False, 'awarded': True, 'notice': 5, 'cutoff': 4, 'already_paid': 40, 'cap': 20, 'released': False, 'withdrawn_units': 2, 'awarded_units': 5, 'returned_units': 1, 'bond': 6, 'forfeit': True, 'withdrawals': ['a', 'b', 'a'], 'events': [['withdraw', 'a'], ['reinstate', 'a'], ['withdraw', 'b']]}, [8, 16, 24, 32, 40]), ('bond released', {'bid': 30, 'resale': 18, 'deposit': 8, 'fee': 3, 'excused': False, 'awarded': True, 'notice': 5, 'cutoff': 4, 'already_paid': 2, 'cap': 20, 'released': True, 'withdrawn_units': 2, 'awarded_units': 5, 'returned_units': 1, 'bond': 6, 'forfeit': True, 'withdrawals': ['a', 'b', 'a'], 'events': [['withdraw', 'a'], ['reinstate', 'a'], ['withdraw', 'b']]}, [8, 16, 24, 32, 40])]
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))['notice-penalty'], 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 fixtureActualExpectedOutcome
exact notice cutoff80Failed
notice order retained / exact notice cutoff80Failed
normal contract88Passed
notice order retained88Passed
resale surplus88Passed
excused default88Passed
before award88Passed
timely notice00Passed
liability already paid88Passed
bond released88Passed

SHA-256 / 521c34930c2af7543fd1357f0b3bfdb36fe67dc509993f02eb8f1757752b2c3b

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["bid"]-x["resale"])
    v1 = 0 if x["excused"] else x["fee"]
    v2 = max(0,x["bid"]-x["resale"]) if x["awarded"] else 0
    v3 = 0 if x["notice"]>=x["cutoff"] else x["deposit"]
    v4 = max(0,x["bid"]-x["resale"]-x["deposit"])
    v5 = max(0,min(x["cap"],max(0,x["bid"]-x["resale"])+x["fee"])-x["already_paid"])
    v6 = x["bond"] if x["forfeit"] and not x["released"] else 0
    v7 = max(0,x["awarded_units"]-x["returned_units"])
    v8 = min(x["withdrawn_units"],max(0,x["awarded_units"]-x["returned_units"]))
    v9 = [b for b in dict.fromkeys(b for op,b in x["events"]) if [op for op,c in x["events"] if c==b][-1]=="withdraw"]
    return {'resale-shortfall':v0,'excused-fee-waiver':v1,'award-liability-gate':v2,'notice-penalty':v3,'deposit-offset':v4,'paid-liability-credit':v5,'released-bond-exclusion':v6,'unreturned-award-units':v7,'withdrawal-unit-cap':v8,'reinstatement-after-withdrawal':v9}
def check(label, actual, expected):
    observations.append({"check": label, "actual": actual, "expected": expected, "passed": actual == expected})
fixtures = [('exact notice cutoff', {'bid': 30, 'resale': 18, 'deposit': 8, 'fee': 3, 'excused': False, 'awarded': True, 'notice': 4, 'cutoff': 4, 'already_paid': 2, 'cap': 20, 'released': False, 'withdrawn_units': 2, 'awarded_units': 5, 'returned_units': 1, 'bond': 6, 'forfeit': True, 'withdrawals': ['a', 'b', 'a'], 'events': [['withdraw', 'a'], ['reinstate', 'a'], ['withdraw', 'b']]}, [0, 0, 0, 0, 0]), ('notice order retained / exact notice cutoff', {'bid': 30, 'resale': 18, 'deposit': 8, 'fee': 3, 'excused': False, 'awarded': True, 'notice': 4, 'cutoff': 4, 'already_paid': 2, 'cap': 20, 'released': False, 'withdrawn_units': 2, 'awarded_units': 5, 'returned_units': 1, 'bond': 6, 'forfeit': True, 'withdrawals': ['b', 'a', 'b'], 'events': [['withdraw', 'a'], ['reinstate', 'a'], ['withdraw', 'b']]}, [0, 0, 0, 0, 0]), ('normal contract', {'bid': 30, 'resale': 18, 'deposit': 8, 'fee': 3, 'excused': False, 'awarded': True, 'notice': 5, 'cutoff': 4, 'already_paid': 2, 'cap': 20, 'released': False, 'withdrawn_units': 2, 'awarded_units': 5, 'returned_units': 1, 'bond': 6, 'forfeit': True, 'withdrawals': ['a', 'b', 'a'], 'events': [['withdraw', 'a'], ['reinstate', 'a'], ['withdraw', 'b']]}, [8, 16, 24, 32, 40]), ('notice order retained', {'bid': 30, 'resale': 18, 'deposit': 8, 'fee': 3, 'excused': False, 'awarded': True, 'notice': 5, 'cutoff': 4, 'already_paid': 2, 'cap': 20, 'released': False, 'withdrawn_units': 2, 'awarded_units': 5, 'returned_units': 1, 'bond': 6, 'forfeit': True, 'withdrawals': ['b', 'a', 'b'], 'events': [['withdraw', 'a'], ['reinstate', 'a'], ['withdraw', 'b']]}, [8, 16, 24, 32, 40]), ('resale surplus', {'bid': 30, 'resale': 40, 'deposit': 8, 'fee': 3, 'excused': False, 'awarded': True, 'notice': 5, 'cutoff': 4, 'already_paid': 2, 'cap': 20, 'released': False, 'withdrawn_units': 2, 'awarded_units': 5, 'returned_units': 1, 'bond': 6, 'forfeit': True, 'withdrawals': ['a', 'b', 'a'], 'events': [['withdraw', 'a'], ['reinstate', 'a'], ['withdraw', 'b']]}, [8, 16, 24, 32, 40]), ('excused default', {'bid': 30, 'resale': 18, 'deposit': 8, 'fee': 3, 'excused': True, 'awarded': True, 'notice': 5, 'cutoff': 4, 'already_paid': 2, 'cap': 20, 'released': False, 'withdrawn_units': 2, 'awarded_units': 5, 'returned_units': 1, 'bond': 6, 'forfeit': True, 'withdrawals': ['a', 'b', 'a'], 'events': [['withdraw', 'a'], ['reinstate', 'a'], ['withdraw', 'b']]}, [8, 16, 24, 32, 40]), ('before award', {'bid': 30, 'resale': 18, 'deposit': 8, 'fee': 3, 'excused': False, 'awarded': False, 'notice': 5, 'cutoff': 4, 'already_paid': 2, 'cap': 20, 'released': False, 'withdrawn_units': 2, 'awarded_units': 5, 'returned_units': 1, 'bond': 6, 'forfeit': True, 'withdrawals': ['a', 'b', 'a'], 'events': [['withdraw', 'a'], ['reinstate', 'a'], ['withdraw', 'b']]}, [8, 16, 24, 32, 40]), ('timely notice', {'bid': 30, 'resale': 18, 'deposit': 8, 'fee': 3, 'excused': False, 'awarded': True, 'notice': 3, 'cutoff': 4, 'already_paid': 2, 'cap': 20, 'released': False, 'withdrawn_units': 2, 'awarded_units': 5, 'returned_units': 1, 'bond': 6, 'forfeit': True, 'withdrawals': ['a', 'b', 'a'], 'events': [['withdraw', 'a'], ['reinstate', 'a'], ['withdraw', 'b']]}, [0, 0, 0, 0, 0]), ('liability already paid', {'bid': 30, 'resale': 18, 'deposit': 8, 'fee': 3, 'excused': False, 'awarded': True, 'notice': 5, 'cutoff': 4, 'already_paid': 40, 'cap': 20, 'released': False, 'withdrawn_units': 2, 'awarded_units': 5, 'returned_units': 1, 'bond': 6, 'forfeit': True, 'withdrawals': ['a', 'b', 'a'], 'events': [['withdraw', 'a'], ['reinstate', 'a'], ['withdraw', 'b']]}, [8, 16, 24, 32, 40]), ('bond released', {'bid': 30, 'resale': 18, 'deposit': 8, 'fee': 3, 'excused': False, 'awarded': True, 'notice': 5, 'cutoff': 4, 'already_paid': 2, 'cap': 20, 'released': True, 'withdrawn_units': 2, 'awarded_units': 5, 'returned_units': 1, 'bond': 6, 'forfeit': True, 'withdrawals': ['a', 'b', 'a'], 'events': [['withdraw', 'a'], ['reinstate', 'a'], ['withdraw', 'b']]}, [8, 16, 24, 32, 40])]
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))['notice-penalty'], 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 fixtureActualExpectedOutcome
exact notice cutoff00Passed
notice order retained / exact notice cutoff00Passed
normal contract08Failed
notice order retained08Failed
resale surplus08Failed
excused default08Failed
before award08Failed
timely notice80Failed
liability already paid08Failed
bond released08Failed

SHA-256 / b5d4ffaeec08fde041716c85a3c94cc9bca3aefeddc75625b2ad4afab25caba6

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["bid"]-x["resale"])
    v1 = 0 if x["excused"] else x["fee"]
    v2 = max(0,x["bid"]-x["resale"]) if x["awarded"] else 0
    v3 = 0 if x["notice"]<=x["cutoff"] else x["deposit"]
    v4 = max(0,x["bid"]-x["resale"]-x["deposit"])
    v5 = max(0,min(x["cap"],max(0,x["bid"]-x["resale"])+x["fee"])-x["already_paid"])
    v6 = x["bond"] if x["forfeit"] and not x["released"] else 0
    v7 = max(0,x["awarded_units"]-x["returned_units"])
    v8 = min(x["withdrawn_units"],max(0,x["awarded_units"]-x["returned_units"]))
    v9 = [b for b in dict.fromkeys(b for op,b in x["events"]) if [op for op,c in x["events"] if c==b][-1]=="withdraw"]
    return {'resale-shortfall':v0,'excused-fee-waiver':v1,'award-liability-gate':v2,'notice-penalty':v3,'deposit-offset':v4,'paid-liability-credit':v5,'released-bond-exclusion':v6,'unreturned-award-units':v7,'withdrawal-unit-cap':v8,'reinstatement-after-withdrawal':v9}
def check(label, actual, expected):
    observations.append({"check": label, "actual": actual, "expected": expected, "passed": actual == expected})
fixtures = [('exact notice cutoff', {'bid': 30, 'resale': 18, 'deposit': 8, 'fee': 3, 'excused': False, 'awarded': True, 'notice': 4, 'cutoff': 4, 'already_paid': 2, 'cap': 20, 'released': False, 'withdrawn_units': 2, 'awarded_units': 5, 'returned_units': 1, 'bond': 6, 'forfeit': True, 'withdrawals': ['a', 'b', 'a'], 'events': [['withdraw', 'a'], ['reinstate', 'a'], ['withdraw', 'b']]}, [0, 0, 0, 0, 0]), ('notice order retained / exact notice cutoff', {'bid': 30, 'resale': 18, 'deposit': 8, 'fee': 3, 'excused': False, 'awarded': True, 'notice': 4, 'cutoff': 4, 'already_paid': 2, 'cap': 20, 'released': False, 'withdrawn_units': 2, 'awarded_units': 5, 'returned_units': 1, 'bond': 6, 'forfeit': True, 'withdrawals': ['b', 'a', 'b'], 'events': [['withdraw', 'a'], ['reinstate', 'a'], ['withdraw', 'b']]}, [0, 0, 0, 0, 0]), ('normal contract', {'bid': 30, 'resale': 18, 'deposit': 8, 'fee': 3, 'excused': False, 'awarded': True, 'notice': 5, 'cutoff': 4, 'already_paid': 2, 'cap': 20, 'released': False, 'withdrawn_units': 2, 'awarded_units': 5, 'returned_units': 1, 'bond': 6, 'forfeit': True, 'withdrawals': ['a', 'b', 'a'], 'events': [['withdraw', 'a'], ['reinstate', 'a'], ['withdraw', 'b']]}, [8, 16, 24, 32, 40]), ('notice order retained', {'bid': 30, 'resale': 18, 'deposit': 8, 'fee': 3, 'excused': False, 'awarded': True, 'notice': 5, 'cutoff': 4, 'already_paid': 2, 'cap': 20, 'released': False, 'withdrawn_units': 2, 'awarded_units': 5, 'returned_units': 1, 'bond': 6, 'forfeit': True, 'withdrawals': ['b', 'a', 'b'], 'events': [['withdraw', 'a'], ['reinstate', 'a'], ['withdraw', 'b']]}, [8, 16, 24, 32, 40]), ('resale surplus', {'bid': 30, 'resale': 40, 'deposit': 8, 'fee': 3, 'excused': False, 'awarded': True, 'notice': 5, 'cutoff': 4, 'already_paid': 2, 'cap': 20, 'released': False, 'withdrawn_units': 2, 'awarded_units': 5, 'returned_units': 1, 'bond': 6, 'forfeit': True, 'withdrawals': ['a', 'b', 'a'], 'events': [['withdraw', 'a'], ['reinstate', 'a'], ['withdraw', 'b']]}, [8, 16, 24, 32, 40]), ('excused default', {'bid': 30, 'resale': 18, 'deposit': 8, 'fee': 3, 'excused': True, 'awarded': True, 'notice': 5, 'cutoff': 4, 'already_paid': 2, 'cap': 20, 'released': False, 'withdrawn_units': 2, 'awarded_units': 5, 'returned_units': 1, 'bond': 6, 'forfeit': True, 'withdrawals': ['a', 'b', 'a'], 'events': [['withdraw', 'a'], ['reinstate', 'a'], ['withdraw', 'b']]}, [8, 16, 24, 32, 40]), ('before award', {'bid': 30, 'resale': 18, 'deposit': 8, 'fee': 3, 'excused': False, 'awarded': False, 'notice': 5, 'cutoff': 4, 'already_paid': 2, 'cap': 20, 'released': False, 'withdrawn_units': 2, 'awarded_units': 5, 'returned_units': 1, 'bond': 6, 'forfeit': True, 'withdrawals': ['a', 'b', 'a'], 'events': [['withdraw', 'a'], ['reinstate', 'a'], ['withdraw', 'b']]}, [8, 16, 24, 32, 40]), ('timely notice', {'bid': 30, 'resale': 18, 'deposit': 8, 'fee': 3, 'excused': False, 'awarded': True, 'notice': 3, 'cutoff': 4, 'already_paid': 2, 'cap': 20, 'released': False, 'withdrawn_units': 2, 'awarded_units': 5, 'returned_units': 1, 'bond': 6, 'forfeit': True, 'withdrawals': ['a', 'b', 'a'], 'events': [['withdraw', 'a'], ['reinstate', 'a'], ['withdraw', 'b']]}, [0, 0, 0, 0, 0]), ('liability already paid', {'bid': 30, 'resale': 18, 'deposit': 8, 'fee': 3, 'excused': False, 'awarded': True, 'notice': 5, 'cutoff': 4, 'already_paid': 40, 'cap': 20, 'released': False, 'withdrawn_units': 2, 'awarded_units': 5, 'returned_units': 1, 'bond': 6, 'forfeit': True, 'withdrawals': ['a', 'b', 'a'], 'events': [['withdraw', 'a'], ['reinstate', 'a'], ['withdraw', 'b']]}, [8, 16, 24, 32, 40]), ('bond released', {'bid': 30, 'resale': 18, 'deposit': 8, 'fee': 3, 'excused': False, 'awarded': True, 'notice': 5, 'cutoff': 4, 'already_paid': 2, 'cap': 20, 'released': True, 'withdrawn_units': 2, 'awarded_units': 5, 'returned_units': 1, 'bond': 6, 'forfeit': True, 'withdrawals': ['a', 'b', 'a'], 'events': [['withdraw', 'a'], ['reinstate', 'a'], ['withdraw', 'b']]}, [8, 16, 24, 32, 40])]
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))['notice-penalty'], 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 fixtureActualExpectedOutcome
exact notice cutoff00Passed
notice order retained / exact notice cutoff00Passed
normal contract88Passed
notice order retained88Passed
resale surplus88Passed
excused default88Passed
before award88Passed
timely notice00Passed
liability already paid88Passed
bond released88Passed

SHA-256 / edd915fc08faae1602efa0a4cc8e17d533d4f0b8ae6904b78f93360561274601

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 2026-09-29T14:46:10.226335+00:00.

Case digest / 70dcbb5061f9376c2add50ac43765f407078b977addb6b96829e490efc767b3e