FA-57321 / Auction allocation rules / Open access
Bid disclosure: withdrawn demand statistic · case 01
Public live demand includes withdrawn auction offers.
ROOT CAUSE
Public live demand includes withdrawn auction offers.
VERIFIED REPAIR
For withdrawn demand statistic, apply the stipulated decision sum(r[1] for r in x["records"] if r[0] not in x["withdrawn"]).
Unsuccessful approach: The attempted repair uses sum(r[1] for r in x["records"] if r[0] in x["withdrawn"]); the explicit regression cases demonstrate that this still violates the stipulated auction rule.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 Named decision withdrawn-demand-statistic: For withdrawn demand statistic, apply the stipulated decision sum(r[1] for r in x["records"] if r[0] not in x["withdrawn"]).
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"])
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withdrawn-demand-statistic':v6,'field-projection':v7,'embargo-final-result':v8,'appeal-audit-retention':v9}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 = [('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']}, [3, 6, 9, 12, 15]), ('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']}, [3, 6, 9, 12, 15]), ('no withdrawn bids', {'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': [], 'embargo': False, 'published_fields': ['quantity'], 'appeal_open': True, 'winner': 'b', 'revoked': ['a']}, [6, 12, 18, 24, 30]), ('closed / no withdrawn bids', {'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': [], 'embargo': False, 'published_fields': ['quantity'], 'appeal_open': True, 'winner': 'b', 'revoked': ['a']}, [6, 12, 18, 24, 30]), ('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']}, [3, 6, 9, 12, 15]), ('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']}, [3, 6, 9, 12, 15]), ('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']}, [3, 6, 9, 12, 15]), ('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']}, [3, 6, 9, 12, 15]), ('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']}, [3, 6, 9, 12, 15]), ('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']}, [3, 6, 9, 12, 15]), ('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']}, [3, 6, 9, 12, 15])]
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))['withdrawn-demand-statistic'], 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 | 6 | 3 | Failed |
| closed | 6 | 3 | Failed |
| no withdrawn bids | 6 | 6 | Passed |
| closed / no withdrawn bids | 6 | 6 | Passed |
| auditor view | 6 | 3 | Failed |
| outsider view | 6 | 3 | Failed |
| threshold met | 6 | 3 | Failed |
| all consent | 6 | 3 | Failed |
| embargo active | 6 | 3 | Failed |
| no appeal | 6 | 3 | Failed |
| all revoked | 6 | 3 | Failed |
SHA-256 / 154be810b196710919610ad8764d1854cd53303b56eaf91203b9a62f892e3d75
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] 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 = [('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']}, [3, 6, 9, 12, 15]), ('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']}, [3, 6, 9, 12, 15]), ('no withdrawn bids', {'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': [], 'embargo': False, 'published_fields': ['quantity'], 'appeal_open': True, 'winner': 'b', 'revoked': ['a']}, [6, 12, 18, 24, 30]), ('closed / no withdrawn bids', {'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': [], 'embargo': False, 'published_fields': ['quantity'], 'appeal_open': True, 'winner': 'b', 'revoked': ['a']}, [6, 12, 18, 24, 30]), ('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']}, [3, 6, 9, 12, 15]), ('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']}, [3, 6, 9, 12, 15]), ('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']}, [3, 6, 9, 12, 15]), ('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']}, [3, 6, 9, 12, 15]), ('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']}, [3, 6, 9, 12, 15]), ('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']}, [3, 6, 9, 12, 15]), ('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']}, [3, 6, 9, 12, 15])]
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))['withdrawn-demand-statistic'], 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 | 3 | 3 | Passed |
| closed | 3 | 3 | Passed |
| no withdrawn bids | 0 | 6 | Failed |
| closed / no withdrawn bids | 0 | 6 | Failed |
| auditor view | 3 | 3 | Passed |
| outsider view | 3 | 3 | Passed |
| threshold met | 3 | 3 | Passed |
| all consent | 3 | 3 | Passed |
| embargo active | 3 | 3 | Passed |
| no appeal | 3 | 3 | Passed |
| all revoked | 3 | 3 | Passed |
SHA-256 / fe4beb253c88439356f8f3f33b2736d0da67dc0fc2c92f0c9f3773b40631d5c9
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 = [('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']}, [3, 6, 9, 12, 15]), ('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']}, [3, 6, 9, 12, 15]), ('no withdrawn bids', {'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': [], 'embargo': False, 'published_fields': ['quantity'], 'appeal_open': True, 'winner': 'b', 'revoked': ['a']}, [6, 12, 18, 24, 30]), ('closed / no withdrawn bids', {'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': [], 'embargo': False, 'published_fields': ['quantity'], 'appeal_open': True, 'winner': 'b', 'revoked': ['a']}, [6, 12, 18, 24, 30]), ('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']}, [3, 6, 9, 12, 15]), ('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']}, [3, 6, 9, 12, 15]), ('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']}, [3, 6, 9, 12, 15]), ('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']}, [3, 6, 9, 12, 15]), ('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']}, [3, 6, 9, 12, 15]), ('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']}, [3, 6, 9, 12, 15]), ('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']}, [3, 6, 9, 12, 15])]
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))['withdrawn-demand-statistic'], 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 | 3 | 3 | Passed |
| closed | 3 | 3 | Passed |
| no withdrawn bids | 6 | 6 | Passed |
| closed / no withdrawn bids | 6 | 6 | Passed |
| auditor view | 3 | 3 | Passed |
| outsider view | 3 | 3 | Passed |
| threshold met | 3 | 3 | Passed |
| all consent | 3 | 3 | Passed |
| embargo active | 3 | 3 | Passed |
| no appeal | 3 | 3 | Passed |
| all revoked | 3 | 3 | Passed |
SHA-256 / 31124d82445125e4c97c00f387bdc6fc8a97575ea4edc8dd6e30399d50c41ab3
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 2026-09-29T14:46:15.657725+00:00.
Case digest / 1c5d98f195f738627d87f40444ec7b41b44fcb1c38aedff8f0ebd93f49978969