FA-56716 / Auction allocation rules / Open access
Soft close: timely submission · case 01
Admission latency rejects a bid submitted before the deadline.
ROOT CAUSE
Admission latency rejects a bid submitted before the deadline.
VERIFIED REPAIR
For timely submission, apply the stipulated decision x["submitted"]<x["close"].
Unsuccessful approach: The attempted repair uses x["submitted"]<=x["close"]; the explicit regression cases demonstrate that this still violates the stipulated auction rule.
Case contract
Toy soft-close auction scheduling uses integer ticks. Only eligible bids in the final extension window extend close, extending from the later existing deadline, with a fixed hard stop and a finite extension count. A batch carries submission and admission times separately. Named decision timely-submission: For timely submission, apply the stipulated decision x["submitted"]<x["close"].
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["close"]-x["window"]<=x["now"]<x["close"]
v1 = max(x["close"],x["now"]+x["extension"])
v2 = min(x["hard_stop"],x["close"]+x["extension"])
v3 = x["close"]+x["extension"] if x["eligible"] and not x["withdrawn"] else x["close"]
v4 = x["count"]<x["max_count"]
v5 = x["admitted"]<x["close"]
v6 = min(x["hard_stop"],x["close"]+x["pause_length"]) if x["paused"] else x["close"]
v7 = max(x["close"],x["last_bid"]+x["grace"])
v8 = len(set(x["batch_times"])-set(x["seen_times"]))
v9 = not x["paused"] and x["now"]>=x["close"]
return {'extension-window':v0,'extension-base':v1,'hard-stop-cap':v2,'eligible-bid-extension':v3,'extension-budget':v4,'timely-submission':v5,'paused-deadline':v6,'quiet-period-close':v7,'new-batch-extensions':v8,'paused-close-event':v9}
def check(label, actual, expected):
observations.append({"check": label, "actual": actual, "expected": expected, "passed": actual == expected})
fixtures = [('normal contract', {'close': 20, 'now': 18, 'window': 3, 'extension': 5, 'hard_stop': 30, 'count': 1, 'max_count': 3, 'eligible': True, 'submitted': 19, 'admitted': 21, 'paused': False, 'pause_length': 4, 'last_bid': 15, 'grace': 2, 'withdrawn': False, 'batch_times': [17, 19], 'seen_times': [17]}, [True, True, True, True, True]), ('quiet grace extends close', {'close': 20, 'now': 18, 'window': 3, 'extension': 5, 'hard_stop': 30, 'count': 1, 'max_count': 3, 'eligible': True, 'submitted': 19, 'admitted': 21, 'paused': False, 'pause_length': 4, 'last_bid': 19, 'grace': 4, 'withdrawn': False, 'batch_times': [17, 19], 'seen_times': [17]}, [True, True, True, True, True]), ('submission exactly closing', {'close': 20, 'now': 18, 'window': 3, 'extension': 5, 'hard_stop': 30, 'count': 1, 'max_count': 3, 'eligible': True, 'submitted': 20, 'admitted': 21, 'paused': False, 'pause_length': 4, 'last_bid': 15, 'grace': 2, 'withdrawn': False, 'batch_times': [17, 19], 'seen_times': [17]}, [False, False, False, False, False]), ('submission exactly closing / quiet grace extends close', {'close': 20, 'now': 18, 'window': 3, 'extension': 5, 'hard_stop': 30, 'count': 1, 'max_count': 3, 'eligible': True, 'submitted': 20, 'admitted': 21, 'paused': False, 'pause_length': 4, 'last_bid': 19, 'grace': 4, 'withdrawn': False, 'batch_times': [17, 19], 'seen_times': [17]}, [False, False, False, False, False]), ('early bid', {'close': 20, 'now': 10, 'window': 3, 'extension': 5, 'hard_stop': 30, 'count': 1, 'max_count': 3, 'eligible': True, 'submitted': 19, 'admitted': 21, 'paused': False, 'pause_length': 4, 'last_bid': 15, 'grace': 2, 'withdrawn': False, 'batch_times': [17, 19], 'seen_times': [17]}, [True, True, True, True, True]), ('at deadline', {'close': 20, 'now': 20, 'window': 3, 'extension': 5, 'hard_stop': 30, 'count': 1, 'max_count': 3, 'eligible': True, 'submitted': 19, 'admitted': 21, 'paused': False, 'pause_length': 4, 'last_bid': 15, 'grace': 2, 'withdrawn': False, 'batch_times': [17, 19], 'seen_times': [17]}, [True, True, True, True, True]), ('past deadline', {'close': 20, 'now': 21, 'window': 3, 'extension': 5, 'hard_stop': 30, 'count': 1, 'max_count': 3, 'eligible': True, 'submitted': 19, 'admitted': 21, 'paused': False, 'pause_length': 4, 'last_bid': 15, 'grace': 2, 'withdrawn': False, 'batch_times': [17, 19], 'seen_times': [17]}, [True, True, True, True, True]), ('ineligible bid', {'close': 20, 'now': 18, 'window': 3, 'extension': 5, 'hard_stop': 30, 'count': 1, 'max_count': 3, 'eligible': False, 'submitted': 19, 'admitted': 21, 'paused': False, 'pause_length': 4, 'last_bid': 15, 'grace': 2, 'withdrawn': False, 'batch_times': [17, 19], 'seen_times': [17]}, [True, True, True, True, True]), ('hard stop near', {'close': 20, 'now': 18, 'window': 3, 'extension': 5, 'hard_stop': 22, 'count': 1, 'max_count': 3, 'eligible': True, 'submitted': 19, 'admitted': 21, 'paused': False, 'pause_length': 4, 'last_bid': 15, 'grace': 2, 'withdrawn': False, 'batch_times': [17, 19], 'seen_times': [17]}, [True, True, True, True, True]), ('no extensions left', {'close': 20, 'now': 18, 'window': 3, 'extension': 5, 'hard_stop': 30, 'count': 3, 'max_count': 3, 'eligible': True, 'submitted': 19, 'admitted': 21, 'paused': False, 'pause_length': 4, 'last_bid': 15, 'grace': 2, 'withdrawn': False, 'batch_times': [17, 19], 'seen_times': [17]}, [True, True, True, True, True])]
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', 'max_count', '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))['timely-submission'], 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 | False | True | Failed |
| quiet grace extends close | False | True | Failed |
| submission exactly closing | False | False | Passed |
| submission exactly closing / quiet grace extends close | False | False | Passed |
| early bid | False | True | Failed |
| at deadline | False | True | Failed |
| past deadline | False | True | Failed |
| ineligible bid | False | True | Failed |
| hard stop near | False | True | Failed |
| no extensions left | False | True | Failed |
SHA-256 / e15effc3b2a730a6dc0b3d7cbae1b43ddbcbec4a1038a52993c40bc9660bd428
2 / The unsuccessful fix
Exit 1"""Failure Map reference implementation. Python standard library only."""
import json
N = 1
observations = []
def solve(x):
v0 = x["close"]-x["window"]<=x["now"]<x["close"]
v1 = max(x["close"],x["now"]+x["extension"])
v2 = min(x["hard_stop"],x["close"]+x["extension"])
v3 = x["close"]+x["extension"] if x["eligible"] and not x["withdrawn"] else x["close"]
v4 = x["count"]<x["max_count"]
v5 = x["submitted"]<=x["close"]
v6 = min(x["hard_stop"],x["close"]+x["pause_length"]) if x["paused"] else x["close"]
v7 = max(x["close"],x["last_bid"]+x["grace"])
v8 = len(set(x["batch_times"])-set(x["seen_times"]))
v9 = not x["paused"] and x["now"]>=x["close"]
return {'extension-window':v0,'extension-base':v1,'hard-stop-cap':v2,'eligible-bid-extension':v3,'extension-budget':v4,'timely-submission':v5,'paused-deadline':v6,'quiet-period-close':v7,'new-batch-extensions':v8,'paused-close-event':v9}
def check(label, actual, expected):
observations.append({"check": label, "actual": actual, "expected": expected, "passed": actual == expected})
fixtures = [('normal contract', {'close': 20, 'now': 18, 'window': 3, 'extension': 5, 'hard_stop': 30, 'count': 1, 'max_count': 3, 'eligible': True, 'submitted': 19, 'admitted': 21, 'paused': False, 'pause_length': 4, 'last_bid': 15, 'grace': 2, 'withdrawn': False, 'batch_times': [17, 19], 'seen_times': [17]}, [True, True, True, True, True]), ('quiet grace extends close', {'close': 20, 'now': 18, 'window': 3, 'extension': 5, 'hard_stop': 30, 'count': 1, 'max_count': 3, 'eligible': True, 'submitted': 19, 'admitted': 21, 'paused': False, 'pause_length': 4, 'last_bid': 19, 'grace': 4, 'withdrawn': False, 'batch_times': [17, 19], 'seen_times': [17]}, [True, True, True, True, True]), ('submission exactly closing', {'close': 20, 'now': 18, 'window': 3, 'extension': 5, 'hard_stop': 30, 'count': 1, 'max_count': 3, 'eligible': True, 'submitted': 20, 'admitted': 21, 'paused': False, 'pause_length': 4, 'last_bid': 15, 'grace': 2, 'withdrawn': False, 'batch_times': [17, 19], 'seen_times': [17]}, [False, False, False, False, False]), ('submission exactly closing / quiet grace extends close', {'close': 20, 'now': 18, 'window': 3, 'extension': 5, 'hard_stop': 30, 'count': 1, 'max_count': 3, 'eligible': True, 'submitted': 20, 'admitted': 21, 'paused': False, 'pause_length': 4, 'last_bid': 19, 'grace': 4, 'withdrawn': False, 'batch_times': [17, 19], 'seen_times': [17]}, [False, False, False, False, False]), ('early bid', {'close': 20, 'now': 10, 'window': 3, 'extension': 5, 'hard_stop': 30, 'count': 1, 'max_count': 3, 'eligible': True, 'submitted': 19, 'admitted': 21, 'paused': False, 'pause_length': 4, 'last_bid': 15, 'grace': 2, 'withdrawn': False, 'batch_times': [17, 19], 'seen_times': [17]}, [True, True, True, True, True]), ('at deadline', {'close': 20, 'now': 20, 'window': 3, 'extension': 5, 'hard_stop': 30, 'count': 1, 'max_count': 3, 'eligible': True, 'submitted': 19, 'admitted': 21, 'paused': False, 'pause_length': 4, 'last_bid': 15, 'grace': 2, 'withdrawn': False, 'batch_times': [17, 19], 'seen_times': [17]}, [True, True, True, True, True]), ('past deadline', {'close': 20, 'now': 21, 'window': 3, 'extension': 5, 'hard_stop': 30, 'count': 1, 'max_count': 3, 'eligible': True, 'submitted': 19, 'admitted': 21, 'paused': False, 'pause_length': 4, 'last_bid': 15, 'grace': 2, 'withdrawn': False, 'batch_times': [17, 19], 'seen_times': [17]}, [True, True, True, True, True]), ('ineligible bid', {'close': 20, 'now': 18, 'window': 3, 'extension': 5, 'hard_stop': 30, 'count': 1, 'max_count': 3, 'eligible': False, 'submitted': 19, 'admitted': 21, 'paused': False, 'pause_length': 4, 'last_bid': 15, 'grace': 2, 'withdrawn': False, 'batch_times': [17, 19], 'seen_times': [17]}, [True, True, True, True, True]), ('hard stop near', {'close': 20, 'now': 18, 'window': 3, 'extension': 5, 'hard_stop': 22, 'count': 1, 'max_count': 3, 'eligible': True, 'submitted': 19, 'admitted': 21, 'paused': False, 'pause_length': 4, 'last_bid': 15, 'grace': 2, 'withdrawn': False, 'batch_times': [17, 19], 'seen_times': [17]}, [True, True, True, True, True]), ('no extensions left', {'close': 20, 'now': 18, 'window': 3, 'extension': 5, 'hard_stop': 30, 'count': 3, 'max_count': 3, 'eligible': True, 'submitted': 19, 'admitted': 21, 'paused': False, 'pause_length': 4, 'last_bid': 15, 'grace': 2, 'withdrawn': False, 'batch_times': [17, 19], 'seen_times': [17]}, [True, True, True, True, True])]
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', 'max_count', '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))['timely-submission'], 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 | True | True | Passed |
| quiet grace extends close | True | True | Passed |
| submission exactly closing | True | False | Failed |
| submission exactly closing / quiet grace extends close | True | False | Failed |
| early bid | True | True | Passed |
| at deadline | True | True | Passed |
| past deadline | True | True | Passed |
| ineligible bid | True | True | Passed |
| hard stop near | True | True | Passed |
| no extensions left | True | True | Passed |
SHA-256 / 6c4c5b0b2846c2579bd4b89721497ab2416c70f86af280e2ea1c4391f8517f35
3 / The verified repair
Exit 0"""Failure Map reference implementation. Python standard library only."""
import json
N = 1
observations = []
def solve(x):
v0 = x["close"]-x["window"]<=x["now"]<x["close"]
v1 = max(x["close"],x["now"]+x["extension"])
v2 = min(x["hard_stop"],x["close"]+x["extension"])
v3 = x["close"]+x["extension"] if x["eligible"] and not x["withdrawn"] else x["close"]
v4 = x["count"]<x["max_count"]
v5 = x["submitted"]<x["close"]
v6 = min(x["hard_stop"],x["close"]+x["pause_length"]) if x["paused"] else x["close"]
v7 = max(x["close"],x["last_bid"]+x["grace"])
v8 = len(set(x["batch_times"])-set(x["seen_times"]))
v9 = not x["paused"] and x["now"]>=x["close"]
return {'extension-window':v0,'extension-base':v1,'hard-stop-cap':v2,'eligible-bid-extension':v3,'extension-budget':v4,'timely-submission':v5,'paused-deadline':v6,'quiet-period-close':v7,'new-batch-extensions':v8,'paused-close-event':v9}
def check(label, actual, expected):
observations.append({"check": label, "actual": actual, "expected": expected, "passed": actual == expected})
fixtures = [('normal contract', {'close': 20, 'now': 18, 'window': 3, 'extension': 5, 'hard_stop': 30, 'count': 1, 'max_count': 3, 'eligible': True, 'submitted': 19, 'admitted': 21, 'paused': False, 'pause_length': 4, 'last_bid': 15, 'grace': 2, 'withdrawn': False, 'batch_times': [17, 19], 'seen_times': [17]}, [True, True, True, True, True]), ('quiet grace extends close', {'close': 20, 'now': 18, 'window': 3, 'extension': 5, 'hard_stop': 30, 'count': 1, 'max_count': 3, 'eligible': True, 'submitted': 19, 'admitted': 21, 'paused': False, 'pause_length': 4, 'last_bid': 19, 'grace': 4, 'withdrawn': False, 'batch_times': [17, 19], 'seen_times': [17]}, [True, True, True, True, True]), ('submission exactly closing', {'close': 20, 'now': 18, 'window': 3, 'extension': 5, 'hard_stop': 30, 'count': 1, 'max_count': 3, 'eligible': True, 'submitted': 20, 'admitted': 21, 'paused': False, 'pause_length': 4, 'last_bid': 15, 'grace': 2, 'withdrawn': False, 'batch_times': [17, 19], 'seen_times': [17]}, [False, False, False, False, False]), ('submission exactly closing / quiet grace extends close', {'close': 20, 'now': 18, 'window': 3, 'extension': 5, 'hard_stop': 30, 'count': 1, 'max_count': 3, 'eligible': True, 'submitted': 20, 'admitted': 21, 'paused': False, 'pause_length': 4, 'last_bid': 19, 'grace': 4, 'withdrawn': False, 'batch_times': [17, 19], 'seen_times': [17]}, [False, False, False, False, False]), ('early bid', {'close': 20, 'now': 10, 'window': 3, 'extension': 5, 'hard_stop': 30, 'count': 1, 'max_count': 3, 'eligible': True, 'submitted': 19, 'admitted': 21, 'paused': False, 'pause_length': 4, 'last_bid': 15, 'grace': 2, 'withdrawn': False, 'batch_times': [17, 19], 'seen_times': [17]}, [True, True, True, True, True]), ('at deadline', {'close': 20, 'now': 20, 'window': 3, 'extension': 5, 'hard_stop': 30, 'count': 1, 'max_count': 3, 'eligible': True, 'submitted': 19, 'admitted': 21, 'paused': False, 'pause_length': 4, 'last_bid': 15, 'grace': 2, 'withdrawn': False, 'batch_times': [17, 19], 'seen_times': [17]}, [True, True, True, True, True]), ('past deadline', {'close': 20, 'now': 21, 'window': 3, 'extension': 5, 'hard_stop': 30, 'count': 1, 'max_count': 3, 'eligible': True, 'submitted': 19, 'admitted': 21, 'paused': False, 'pause_length': 4, 'last_bid': 15, 'grace': 2, 'withdrawn': False, 'batch_times': [17, 19], 'seen_times': [17]}, [True, True, True, True, True]), ('ineligible bid', {'close': 20, 'now': 18, 'window': 3, 'extension': 5, 'hard_stop': 30, 'count': 1, 'max_count': 3, 'eligible': False, 'submitted': 19, 'admitted': 21, 'paused': False, 'pause_length': 4, 'last_bid': 15, 'grace': 2, 'withdrawn': False, 'batch_times': [17, 19], 'seen_times': [17]}, [True, True, True, True, True]), ('hard stop near', {'close': 20, 'now': 18, 'window': 3, 'extension': 5, 'hard_stop': 22, 'count': 1, 'max_count': 3, 'eligible': True, 'submitted': 19, 'admitted': 21, 'paused': False, 'pause_length': 4, 'last_bid': 15, 'grace': 2, 'withdrawn': False, 'batch_times': [17, 19], 'seen_times': [17]}, [True, True, True, True, True]), ('no extensions left', {'close': 20, 'now': 18, 'window': 3, 'extension': 5, 'hard_stop': 30, 'count': 3, 'max_count': 3, 'eligible': True, 'submitted': 19, 'admitted': 21, 'paused': False, 'pause_length': 4, 'last_bid': 15, 'grace': 2, 'withdrawn': False, 'batch_times': [17, 19], 'seen_times': [17]}, [True, True, True, True, True])]
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', 'max_count', '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))['timely-submission'], 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 | True | True | Passed |
| quiet grace extends close | True | True | Passed |
| submission exactly closing | False | False | Passed |
| submission exactly closing / quiet grace extends close | False | False | Passed |
| early bid | True | True | Passed |
| at deadline | True | True | Passed |
| past deadline | True | True | Passed |
| ineligible bid | True | True | Passed |
| hard stop near | True | True | Passed |
| no extensions left | True | True | Passed |
SHA-256 / 929036bc3e08c2e06cb5aa22a92eeeb23db177c2463ddc6333eb24331b620904
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 2026-09-29T14:46:09.696377+00:00.
Case digest / d1e3fb6b3664d06364bd6e7ed0fc1c92f5eca0880b1e5d4ff8749b9c3b5990aa