FA-57331 / Auction allocation rules / Open access

Bid disclosure: embargo final result · case 01

Closed-auction results leak during an explicit publication embargo.

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

ROOT CAUSE

Closed-auction results leak during an explicit publication embargo.

VERIFIED REPAIR

For embargo final result, apply the stipulated decision x["winner"] if x["closed"] and not x["embargo"] else None.

Unsuccessful approach: The attempted repair uses x["winner"] if not x["embargo"] else None; the explicit regression cases demonstrate that this still violates the stipulated auction rule.

Case contract

Toy auction disclosure views distinguish bidder self-view, public preclose statistics, anonymized postclose results, and auditor-only linkage. List records have fields [bidder, quantity, value]; suppression thresholds count distinct bidders, not submitted records. Named decision embargo-final-result: For embargo final result, apply the stipulated decision x["winner"] if x["closed"] and not x["embargo"] else None.

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 = [r for r in x["records"] if r[0]==x["viewer"]]
    v1 = [r[2] for r in x["records"]] if x["closed"] else []
    v2 = len({r[0] for r in x["records"]})>=x["threshold"]
    v3 = [[x["aliases"].get(r[0],"anonymous"),r[1]] for r in x["records"]]
    v4 = x["aliases"] if x["auditor"] else {}
    v5 = [r[0] for r in x["records"] if r[0] in x["consenting"] and r[0] not in x["revoked"]]
    v6 = sum(r[1] for r in x["records"] if r[0] not in x["withdrawn"])
    v7 = [{k:r[i] for k,i in (("quantity",1),("value",2)) if k in x["published_fields"]} for r in x["records"]]
    v8 = x["winner"] if x["closed"] else None
    v9 = x["records"] if x["appeal_open"] or x["auditor"] else []
    return {'self-view-scope':v0,'preclose-value-embargo':v1,'distinct-bidder-suppression':v2,'alias-result-view':v3,'auditor-linkage':v4,'consent-qualified-disclosure':v5,'withdrawn-demand-statistic':v6,'field-projection':v7,'embargo-final-result':v8,'appeal-audit-retention':v9}
def check(label, actual, expected):
    observations.append({"check": label, "actual": actual, "expected": expected, "passed": actual == expected})
fixtures = [('closed / embargo active', {'records': [['a', 2, 7], ['b', 3, 9], ['a', 1, 6]], 'viewer': 'a', 'closed': True, 'auditor': False, 'consenting': ['a'], 'threshold': 3, 'aliases': {'a': 'X', 'b': 'Y'}, 'withdrawn': ['b'], 'embargo': True, 'published_fields': ['quantity'], 'appeal_open': True, 'winner': 'b', 'revoked': ['a']}, [None, None, None, None, None]), ('normal contract', {'records': [['a', 2, 7], ['b', 3, 9], ['a', 1, 6]], 'viewer': 'a', 'closed': False, 'auditor': False, 'consenting': ['a'], 'threshold': 3, 'aliases': {'a': 'X', 'b': 'Y'}, 'withdrawn': ['b'], 'embargo': False, 'published_fields': ['quantity'], 'appeal_open': True, 'winner': 'b', 'revoked': ['a']}, [None, None, None, None, None]), ('auditor view', {'records': [['a', 2, 7], ['b', 3, 9], ['a', 1, 6]], 'viewer': 'a', 'closed': False, 'auditor': True, 'consenting': ['a'], 'threshold': 3, 'aliases': {'a': 'X', 'b': 'Y'}, 'withdrawn': ['b'], 'embargo': False, 'published_fields': ['quantity'], 'appeal_open': True, 'winner': 'b', 'revoked': ['a']}, [None, None, None, None, None]), ('closed', {'records': [['a', 2, 7], ['b', 3, 9], ['a', 1, 6]], 'viewer': 'a', 'closed': True, 'auditor': False, 'consenting': ['a'], 'threshold': 3, 'aliases': {'a': 'X', 'b': 'Y'}, 'withdrawn': ['b'], 'embargo': False, 'published_fields': ['quantity'], 'appeal_open': True, 'winner': 'b', 'revoked': ['a']}, ['b', 'b', 'b', 'b', 'b']), ('outsider view', {'records': [['a', 2, 7], ['b', 3, 9], ['a', 1, 6]], 'viewer': 'z', 'closed': False, 'auditor': False, 'consenting': ['a'], 'threshold': 3, 'aliases': {'a': 'X', 'b': 'Y'}, 'withdrawn': ['b'], 'embargo': False, 'published_fields': ['quantity'], 'appeal_open': True, 'winner': 'b', 'revoked': ['a']}, [None, None, None, None, None]), ('threshold met', {'records': [['a', 2, 7], ['b', 3, 9], ['a', 1, 6]], 'viewer': 'a', 'closed': False, 'auditor': False, 'consenting': ['a'], 'threshold': 2, 'aliases': {'a': 'X', 'b': 'Y'}, 'withdrawn': ['b'], 'embargo': False, 'published_fields': ['quantity'], 'appeal_open': True, 'winner': 'b', 'revoked': ['a']}, [None, None, None, None, None]), ('all consent', {'records': [['a', 2, 7], ['b', 3, 9], ['a', 1, 6]], 'viewer': 'a', 'closed': False, 'auditor': False, 'consenting': ['a', 'b'], 'threshold': 3, 'aliases': {'a': 'X', 'b': 'Y'}, 'withdrawn': ['b'], 'embargo': False, 'published_fields': ['quantity'], 'appeal_open': True, 'winner': 'b', 'revoked': ['a']}, [None, None, None, None, None]), ('embargo active', {'records': [['a', 2, 7], ['b', 3, 9], ['a', 1, 6]], 'viewer': 'a', 'closed': False, 'auditor': False, 'consenting': ['a'], 'threshold': 3, 'aliases': {'a': 'X', 'b': 'Y'}, 'withdrawn': ['b'], 'embargo': True, 'published_fields': ['quantity'], 'appeal_open': True, 'winner': 'b', 'revoked': ['a']}, [None, None, None, None, None]), ('no appeal', {'records': [['a', 2, 7], ['b', 3, 9], ['a', 1, 6]], 'viewer': 'a', 'closed': False, 'auditor': False, 'consenting': ['a'], 'threshold': 3, 'aliases': {'a': 'X', 'b': 'Y'}, 'withdrawn': ['b'], 'embargo': False, 'published_fields': ['quantity'], 'appeal_open': False, 'winner': 'b', 'revoked': ['a']}, [None, None, None, None, None]), ('all revoked', {'records': [['a', 2, 7], ['b', 3, 9], ['a', 1, 6]], 'viewer': 'a', 'closed': False, 'auditor': False, 'consenting': ['a'], 'threshold': 3, 'aliases': {'a': 'X', 'b': 'Y'}, 'withdrawn': ['b'], 'embargo': False, 'published_fields': ['quantity'], 'appeal_open': True, 'winner': 'b', 'revoked': ['a', 'b']}, [None, None, None, None, None])]
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))['embargo-final-result'], 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
closed / embargo active	`b`	`None`	Failed
normal contract	`None`	`None`	Passed
auditor view	`None`	`None`	Passed
closed	`b`	`b`	Passed
outsider view	`None`	`None`	Passed
threshold met	`None`	`None`	Passed
all consent	`None`	`None`	Passed
embargo active	`None`	`None`	Passed
no appeal	`None`	`None`	Passed
all revoked	`None`	`None`	Passed

SHA-256 / 92c740db1b0f5d4e7e3455e0e8eed61d3e872d6f3d1e793b603136d0d47cd82a

2 / The unsuccessful fix

Exit 1

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

N = 1
observations = []
def solve(x):
    v0 = [r for r in x["records"] if r[0]==x["viewer"]]
    v1 = [r[2] for r in x["records"]] if x["closed"] else []
    v2 = len({r[0] for r in x["records"]})>=x["threshold"]
    v3 = [[x["aliases"].get(r[0],"anonymous"),r[1]] for r in x["records"]]
    v4 = x["aliases"] if x["auditor"] else {}
    v5 = [r[0] for r in x["records"] if r[0] in x["consenting"] and r[0] not in x["revoked"]]
    v6 = sum(r[1] for r in x["records"] if r[0] not in x["withdrawn"])
    v7 = [{k:r[i] for k,i in (("quantity",1),("value",2)) if k in x["published_fields"]} for r in x["records"]]
    v8 = x["winner"] if not x["embargo"] else None
    v9 = x["records"] if x["appeal_open"] or x["auditor"] else []
    return {'self-view-scope':v0,'preclose-value-embargo':v1,'distinct-bidder-suppression':v2,'alias-result-view':v3,'auditor-linkage':v4,'consent-qualified-disclosure':v5,'withdrawn-demand-statistic':v6,'field-projection':v7,'embargo-final-result':v8,'appeal-audit-retention':v9}
def check(label, actual, expected):
    observations.append({"check": label, "actual": actual, "expected": expected, "passed": actual == expected})
fixtures = [('closed / embargo active', {'records': [['a', 2, 7], ['b', 3, 9], ['a', 1, 6]], 'viewer': 'a', 'closed': True, 'auditor': False, 'consenting': ['a'], 'threshold': 3, 'aliases': {'a': 'X', 'b': 'Y'}, 'withdrawn': ['b'], 'embargo': True, 'published_fields': ['quantity'], 'appeal_open': True, 'winner': 'b', 'revoked': ['a']}, [None, None, None, None, None]), ('normal contract', {'records': [['a', 2, 7], ['b', 3, 9], ['a', 1, 6]], 'viewer': 'a', 'closed': False, 'auditor': False, 'consenting': ['a'], 'threshold': 3, 'aliases': {'a': 'X', 'b': 'Y'}, 'withdrawn': ['b'], 'embargo': False, 'published_fields': ['quantity'], 'appeal_open': True, 'winner': 'b', 'revoked': ['a']}, [None, None, None, None, None]), ('auditor view', {'records': [['a', 2, 7], ['b', 3, 9], ['a', 1, 6]], 'viewer': 'a', 'closed': False, 'auditor': True, 'consenting': ['a'], 'threshold': 3, 'aliases': {'a': 'X', 'b': 'Y'}, 'withdrawn': ['b'], 'embargo': False, 'published_fields': ['quantity'], 'appeal_open': True, 'winner': 'b', 'revoked': ['a']}, [None, None, None, None, None]), ('closed', {'records': [['a', 2, 7], ['b', 3, 9], ['a', 1, 6]], 'viewer': 'a', 'closed': True, 'auditor': False, 'consenting': ['a'], 'threshold': 3, 'aliases': {'a': 'X', 'b': 'Y'}, 'withdrawn': ['b'], 'embargo': False, 'published_fields': ['quantity'], 'appeal_open': True, 'winner': 'b', 'revoked': ['a']}, ['b', 'b', 'b', 'b', 'b']), ('outsider view', {'records': [['a', 2, 7], ['b', 3, 9], ['a', 1, 6]], 'viewer': 'z', 'closed': False, 'auditor': False, 'consenting': ['a'], 'threshold': 3, 'aliases': {'a': 'X', 'b': 'Y'}, 'withdrawn': ['b'], 'embargo': False, 'published_fields': ['quantity'], 'appeal_open': True, 'winner': 'b', 'revoked': ['a']}, [None, None, None, None, None]), ('threshold met', {'records': [['a', 2, 7], ['b', 3, 9], ['a', 1, 6]], 'viewer': 'a', 'closed': False, 'auditor': False, 'consenting': ['a'], 'threshold': 2, 'aliases': {'a': 'X', 'b': 'Y'}, 'withdrawn': ['b'], 'embargo': False, 'published_fields': ['quantity'], 'appeal_open': True, 'winner': 'b', 'revoked': ['a']}, [None, None, None, None, None]), ('all consent', {'records': [['a', 2, 7], ['b', 3, 9], ['a', 1, 6]], 'viewer': 'a', 'closed': False, 'auditor': False, 'consenting': ['a', 'b'], 'threshold': 3, 'aliases': {'a': 'X', 'b': 'Y'}, 'withdrawn': ['b'], 'embargo': False, 'published_fields': ['quantity'], 'appeal_open': True, 'winner': 'b', 'revoked': ['a']}, [None, None, None, None, None]), ('embargo active', {'records': [['a', 2, 7], ['b', 3, 9], ['a', 1, 6]], 'viewer': 'a', 'closed': False, 'auditor': False, 'consenting': ['a'], 'threshold': 3, 'aliases': {'a': 'X', 'b': 'Y'}, 'withdrawn': ['b'], 'embargo': True, 'published_fields': ['quantity'], 'appeal_open': True, 'winner': 'b', 'revoked': ['a']}, [None, None, None, None, None]), ('no appeal', {'records': [['a', 2, 7], ['b', 3, 9], ['a', 1, 6]], 'viewer': 'a', 'closed': False, 'auditor': False, 'consenting': ['a'], 'threshold': 3, 'aliases': {'a': 'X', 'b': 'Y'}, 'withdrawn': ['b'], 'embargo': False, 'published_fields': ['quantity'], 'appeal_open': False, 'winner': 'b', 'revoked': ['a']}, [None, None, None, None, None]), ('all revoked', {'records': [['a', 2, 7], ['b', 3, 9], ['a', 1, 6]], 'viewer': 'a', 'closed': False, 'auditor': False, 'consenting': ['a'], 'threshold': 3, 'aliases': {'a': 'X', 'b': 'Y'}, 'withdrawn': ['b'], 'embargo': False, 'published_fields': ['quantity'], 'appeal_open': True, 'winner': 'b', 'revoked': ['a', 'b']}, [None, None, None, None, None])]
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))['embargo-final-result'], 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
closed / embargo active	`None`	`None`	Passed
normal contract	`b`	`None`	Failed
auditor view	`b`	`None`	Failed
closed	`b`	`b`	Passed
outsider view	`b`	`None`	Failed
threshold met	`b`	`None`	Failed
all consent	`b`	`None`	Failed
embargo active	`None`	`None`	Passed
no appeal	`b`	`None`	Failed
all revoked	`b`	`None`	Failed

SHA-256 / b5919113cf4917c68fb15004ee0df55de5d7be4c6a0f64e7d5883e0b9fb0fa3f

3 / The verified repair

Exit 0

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

N = 1
observations = []
def solve(x):
    v0 = [r for r in x["records"] if r[0]==x["viewer"]]
    v1 = [r[2] for r in x["records"]] if x["closed"] else []
    v2 = len({r[0] for r in x["records"]})>=x["threshold"]
    v3 = [[x["aliases"].get(r[0],"anonymous"),r[1]] for r in x["records"]]
    v4 = x["aliases"] if x["auditor"] else {}
    v5 = [r[0] for r in x["records"] if r[0] in x["consenting"] and r[0] not in x["revoked"]]
    v6 = sum(r[1] for r in x["records"] if r[0] not in x["withdrawn"])
    v7 = [{k:r[i] for k,i in (("quantity",1),("value",2)) if k in x["published_fields"]} for r in x["records"]]
    v8 = x["winner"] if x["closed"] and not x["embargo"] else None
    v9 = x["records"] if x["appeal_open"] or x["auditor"] else []
    return {'self-view-scope':v0,'preclose-value-embargo':v1,'distinct-bidder-suppression':v2,'alias-result-view':v3,'auditor-linkage':v4,'consent-qualified-disclosure':v5,'withdrawn-demand-statistic':v6,'field-projection':v7,'embargo-final-result':v8,'appeal-audit-retention':v9}
def check(label, actual, expected):
    observations.append({"check": label, "actual": actual, "expected": expected, "passed": actual == expected})
fixtures = [('closed / embargo active', {'records': [['a', 2, 7], ['b', 3, 9], ['a', 1, 6]], 'viewer': 'a', 'closed': True, 'auditor': False, 'consenting': ['a'], 'threshold': 3, 'aliases': {'a': 'X', 'b': 'Y'}, 'withdrawn': ['b'], 'embargo': True, 'published_fields': ['quantity'], 'appeal_open': True, 'winner': 'b', 'revoked': ['a']}, [None, None, None, None, None]), ('normal contract', {'records': [['a', 2, 7], ['b', 3, 9], ['a', 1, 6]], 'viewer': 'a', 'closed': False, 'auditor': False, 'consenting': ['a'], 'threshold': 3, 'aliases': {'a': 'X', 'b': 'Y'}, 'withdrawn': ['b'], 'embargo': False, 'published_fields': ['quantity'], 'appeal_open': True, 'winner': 'b', 'revoked': ['a']}, [None, None, None, None, None]), ('auditor view', {'records': [['a', 2, 7], ['b', 3, 9], ['a', 1, 6]], 'viewer': 'a', 'closed': False, 'auditor': True, 'consenting': ['a'], 'threshold': 3, 'aliases': {'a': 'X', 'b': 'Y'}, 'withdrawn': ['b'], 'embargo': False, 'published_fields': ['quantity'], 'appeal_open': True, 'winner': 'b', 'revoked': ['a']}, [None, None, None, None, None]), ('closed', {'records': [['a', 2, 7], ['b', 3, 9], ['a', 1, 6]], 'viewer': 'a', 'closed': True, 'auditor': False, 'consenting': ['a'], 'threshold': 3, 'aliases': {'a': 'X', 'b': 'Y'}, 'withdrawn': ['b'], 'embargo': False, 'published_fields': ['quantity'], 'appeal_open': True, 'winner': 'b', 'revoked': ['a']}, ['b', 'b', 'b', 'b', 'b']), ('outsider view', {'records': [['a', 2, 7], ['b', 3, 9], ['a', 1, 6]], 'viewer': 'z', 'closed': False, 'auditor': False, 'consenting': ['a'], 'threshold': 3, 'aliases': {'a': 'X', 'b': 'Y'}, 'withdrawn': ['b'], 'embargo': False, 'published_fields': ['quantity'], 'appeal_open': True, 'winner': 'b', 'revoked': ['a']}, [None, None, None, None, None]), ('threshold met', {'records': [['a', 2, 7], ['b', 3, 9], ['a', 1, 6]], 'viewer': 'a', 'closed': False, 'auditor': False, 'consenting': ['a'], 'threshold': 2, 'aliases': {'a': 'X', 'b': 'Y'}, 'withdrawn': ['b'], 'embargo': False, 'published_fields': ['quantity'], 'appeal_open': True, 'winner': 'b', 'revoked': ['a']}, [None, None, None, None, None]), ('all consent', {'records': [['a', 2, 7], ['b', 3, 9], ['a', 1, 6]], 'viewer': 'a', 'closed': False, 'auditor': False, 'consenting': ['a', 'b'], 'threshold': 3, 'aliases': {'a': 'X', 'b': 'Y'}, 'withdrawn': ['b'], 'embargo': False, 'published_fields': ['quantity'], 'appeal_open': True, 'winner': 'b', 'revoked': ['a']}, [None, None, None, None, None]), ('embargo active', {'records': [['a', 2, 7], ['b', 3, 9], ['a', 1, 6]], 'viewer': 'a', 'closed': False, 'auditor': False, 'consenting': ['a'], 'threshold': 3, 'aliases': {'a': 'X', 'b': 'Y'}, 'withdrawn': ['b'], 'embargo': True, 'published_fields': ['quantity'], 'appeal_open': True, 'winner': 'b', 'revoked': ['a']}, [None, None, None, None, None]), ('no appeal', {'records': [['a', 2, 7], ['b', 3, 9], ['a', 1, 6]], 'viewer': 'a', 'closed': False, 'auditor': False, 'consenting': ['a'], 'threshold': 3, 'aliases': {'a': 'X', 'b': 'Y'}, 'withdrawn': ['b'], 'embargo': False, 'published_fields': ['quantity'], 'appeal_open': False, 'winner': 'b', 'revoked': ['a']}, [None, None, None, None, None]), ('all revoked', {'records': [['a', 2, 7], ['b', 3, 9], ['a', 1, 6]], 'viewer': 'a', 'closed': False, 'auditor': False, 'consenting': ['a'], 'threshold': 3, 'aliases': {'a': 'X', 'b': 'Y'}, 'withdrawn': ['b'], 'embargo': False, 'published_fields': ['quantity'], 'appeal_open': True, 'winner': 'b', 'revoked': ['a', 'b']}, [None, None, None, None, None])]
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))['embargo-final-result'], 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
closed / embargo active	`None`	`None`	Passed
normal contract	`None`	`None`	Passed
auditor view	`None`	`None`	Passed
closed	`b`	`b`	Passed
outsider view	`None`	`None`	Passed
threshold met	`None`	`None`	Passed
all consent	`None`	`None`	Passed
embargo active	`None`	`None`	Passed
no appeal	`None`	`None`	Passed
all revoked	`None`	`None`	Passed

SHA-256 / 6dac7ab17268dddfd9dd51bfaaa98595188559686dc5f8f904ffcb1a673cd209

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 2026-09-29T14:46:15.662130+00:00.

Case digest / 4e367b7621d2d604120e2dea1eeb628c1d23d2e6dc7505aed1aa13f26de38537