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FA-57546 / Auction allocation rules / Open access

Round carryover: standing bid reconsent · case 01

Seller carry permission substitutes for bidder standing-offer permission.

Verified by executionVariant 1 · 9 checks per implementationDownload source bundle ↓JSON ↗

ROOT CAUSE

Seller carry permission substitutes for bidder standing-offer permission.

THE FAILURE

Seller carry permission substitutes for bidder standing-offer permission.

Unsuccessful approach: The attempted repair uses [l for l in x["standing"] if l in x["seller_carry"]]; the explicit regression cases demonstrate that this still violates the stipulated auction rule.

Case contract

Unsold auction lots may carry into a later round with explicit seller consent and inherited encumbrances. Standing offers carry only while their bidder authorization survives and may retain or lose priority according to whether lot specification changed. Sale identifiers retain provenance. Named decision standing-bid-reconsent: For standing bid reconsent, apply the stipulated decision [l for l in x["standing"] if l in x["bidder_carry"]].

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 = [l for l in x["offered"] if l not in x["sold"] and l in x["seller_carry"]]
    v1 = x["standing"]
    v2 = [l for l in x["standing"] if l not in x["withdrawn"]]
    v3 = {l:x["old_priority"][l] if x["old_specs"][l]==x["new_specs"][l] else x["new_round"] for l in x["standing"]}
    v4 = [l for l in x["standing"] if l not in x["already_carried"]]
    v5 = {l:x["holds"].get(l,0) for l in x["standing"] if l in x["encumbered"]}
    v6 = {l:x["source_round"][l] for l in x["standing"]}
    v7 = [l for l in x["standing"] if x["source_round"][l]<x["new_round"]]
    v8 = [l for l in x["standing"] if l in x["bidder_carry"] and l not in x["expired"]]
    v9 = {l:x["approved_reserves"].get(l,x["reserves"][l]) for l in x["standing"]}
    return {'unsold-reoffer':v0,'standing-bid-reconsent':v1,'withdrawal-carry-veto':v2,'specification-priority-reset':v3,'carry-once-per-round':v4,'inherited-reservation':v5,'source-round-provenance':v6,'future-round-reoffer':v7,'authorization-expiry-carry':v8,'approved-reserve-revision':v9}
def check(label, actual, expected):
    observations.append({"check": label, "actual": actual, "expected": expected, "passed": actual == expected})
fixtures = [('normal contract', {'offered': ['A', 'B', 'C'], 'sold': ['A'], 'seller_carry': ['B'], 'standing': ['B', 'C'], 'bidder_carry': ['C'], 'withdrawn': ['B'], 'old_specs': {'B': 'v1', 'C': 'v1'}, 'new_specs': {'B': 'v2', 'C': 'v1'}, 'old_priority': {'B': 1, 'C': 2}, 'new_round': 3, 'source_round': {'A': 1, 'B': 1, 'C': 2}, 'already_carried': ['B'], 'holds': {'B': 5, 'C': 3}, 'encumbered': ['C'], 'expired': ['C'], 'reserves': {'B': 8, 'C': 6}, 'approved_reserves': {'B': 9}}, [['C'], ['C'], ['C'], ['C'], ['C']]), ('all seller carry', {'offered': ['A', 'B', 'C'], 'sold': ['A'], 'seller_carry': ['B', 'C'], 'standing': ['B', 'C'], 'bidder_carry': ['C'], 'withdrawn': ['B'], 'old_specs': {'B': 'v1', 'C': 'v1'}, 'new_specs': {'B': 'v2', 'C': 'v1'}, 'old_priority': {'B': 1, 'C': 2}, 'new_round': 3, 'source_round': {'A': 1, 'B': 1, 'C': 2}, 'already_carried': ['B'], 'holds': {'B': 5, 'C': 3}, 'encumbered': ['C'], 'expired': ['C'], 'reserves': {'B': 8, 'C': 6}, 'approved_reserves': {'B': 9}}, [['C'], ['C'], ['C'], ['C'], ['C']]), ('all bidder carry', {'offered': ['A', 'B', 'C'], 'sold': ['A'], 'seller_carry': ['B'], 'standing': ['B', 'C'], 'bidder_carry': ['B', 'C'], 'withdrawn': ['B'], 'old_specs': {'B': 'v1', 'C': 'v1'}, 'new_specs': {'B': 'v2', 'C': 'v1'}, 'old_priority': {'B': 1, 'C': 2}, 'new_round': 3, 'source_round': {'A': 1, 'B': 1, 'C': 2}, 'already_carried': ['B'], 'holds': {'B': 5, 'C': 3}, 'encumbered': ['C'], 'expired': ['C'], 'reserves': {'B': 8, 'C': 6}, 'approved_reserves': {'B': 9}}, [['B', 'C'], ['B', 'C'], ['B', 'C'], ['B', 'C'], ['B', 'C']]), ('no withdrawals', {'offered': ['A', 'B', 'C'], 'sold': ['A'], 'seller_carry': ['B'], 'standing': ['B', 'C'], 'bidder_carry': ['C'], 'withdrawn': [], 'old_specs': {'B': 'v1', 'C': 'v1'}, 'new_specs': {'B': 'v2', 'C': 'v1'}, 'old_priority': {'B': 1, 'C': 2}, 'new_round': 3, 'source_round': {'A': 1, 'B': 1, 'C': 2}, 'already_carried': ['B'], 'holds': {'B': 5, 'C': 3}, 'encumbered': ['C'], 'expired': ['C'], 'reserves': {'B': 8, 'C': 6}, 'approved_reserves': {'B': 9}}, [['C'], ['C'], ['C'], ['C'], ['C']]), ('unchanged lot specs', {'offered': ['A', 'B', 'C'], 'sold': ['A'], 'seller_carry': ['B'], 'standing': ['B', 'C'], 'bidder_carry': ['C'], 'withdrawn': ['B'], 'old_specs': {'B': 'v1', 'C': 'v1'}, 'new_specs': {'B': 'v1', 'C': 'v1'}, 'old_priority': {'B': 1, 'C': 2}, 'new_round': 3, 'source_round': {'A': 1, 'B': 1, 'C': 2}, 'already_carried': ['B'], 'holds': {'B': 5, 'C': 3}, 'encumbered': ['C'], 'expired': ['C'], 'reserves': {'B': 8, 'C': 6}, 'approved_reserves': {'B': 9}}, [['C'], ['C'], ['C'], ['C'], ['C']]), ('nothing already carried', {'offered': ['A', 'B', 'C'], 'sold': ['A'], 'seller_carry': ['B'], 'standing': ['B', 'C'], 'bidder_carry': ['C'], 'withdrawn': ['B'], 'old_specs': {'B': 'v1', 'C': 'v1'}, 'new_specs': {'B': 'v2', 'C': 'v1'}, 'old_priority': {'B': 1, 'C': 2}, 'new_round': 3, 'source_round': {'A': 1, 'B': 1, 'C': 2}, 'already_carried': [], 'holds': {'B': 5, 'C': 3}, 'encumbered': ['C'], 'expired': ['C'], 'reserves': {'B': 8, 'C': 6}, 'approved_reserves': {'B': 9}}, [['C'], ['C'], ['C'], ['C'], ['C']]), ('no expired authorization', {'offered': ['A', 'B', 'C'], 'sold': ['A'], 'seller_carry': ['B'], 'standing': ['B', 'C'], 'bidder_carry': ['C'], 'withdrawn': ['B'], 'old_specs': {'B': 'v1', 'C': 'v1'}, 'new_specs': {'B': 'v2', 'C': 'v1'}, 'old_priority': {'B': 1, 'C': 2}, 'new_round': 3, 'source_round': {'A': 1, 'B': 1, 'C': 2}, 'already_carried': ['B'], 'holds': {'B': 5, 'C': 3}, 'encumbered': ['C'], 'expired': [], 'reserves': {'B': 8, 'C': 6}, 'approved_reserves': {'B': 9}}, [['C'], ['C'], ['C'], ['C'], ['C']]), ('all sold', {'offered': ['A', 'B', 'C'], 'sold': ['A', 'B', 'C'], 'seller_carry': ['B'], 'standing': ['B', 'C'], 'bidder_carry': ['C'], 'withdrawn': ['B'], 'old_specs': {'B': 'v1', 'C': 'v1'}, 'new_specs': {'B': 'v2', 'C': 'v1'}, 'old_priority': {'B': 1, 'C': 2}, 'new_round': 3, 'source_round': {'A': 1, 'B': 1, 'C': 2}, 'already_carried': ['B'], 'holds': {'B': 5, 'C': 3}, 'encumbered': ['C'], 'expired': ['C'], 'reserves': {'B': 8, 'C': 6}, 'approved_reserves': {'B': 9}}, [['C'], ['C'], ['C'], ['C'], ['C']]), ('no encumbrance', {'offered': ['A', 'B', 'C'], 'sold': ['A'], 'seller_carry': ['B'], 'standing': ['B', 'C'], 'bidder_carry': ['C'], 'withdrawn': ['B'], 'old_specs': {'B': 'v1', 'C': 'v1'}, 'new_specs': {'B': 'v2', 'C': 'v1'}, 'old_priority': {'B': 1, 'C': 2}, 'new_round': 3, 'source_round': {'A': 1, 'B': 1, 'C': 2}, 'already_carried': ['B'], 'holds': {'B': 5, 'C': 3}, 'encumbered': [], 'expired': ['C'], 'reserves': {'B': 8, 'C': 6}, 'approved_reserves': {'B': 9}}, [['C'], ['C'], ['C'], ['C'], ['C']])]
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))['standing-bid-reconsent'], 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
normal contract['B', 'C']['C']Failed
all seller carry['B', 'C']['C']Failed
all bidder carry['B', 'C']['B', 'C']Passed
no withdrawals['B', 'C']['C']Failed
unchanged lot specs['B', 'C']['C']Failed
nothing already carried['B', 'C']['C']Failed
no expired authorization['B', 'C']['C']Failed
all sold['B', 'C']['C']Failed
no encumbrance['B', 'C']['C']Failed

SHA-256 / 71716e937cf322b2c3a48305710516a4f86ec3d82e627f5b778101253522b585

2 / The unsuccessful fix

Exit 1
"""Failure Map reference implementation. Python standard library only."""
import json

N = 1
observations = []
def solve(x):
    v0 = [l for l in x["offered"] if l not in x["sold"] and l in x["seller_carry"]]
    v1 = [l for l in x["standing"] if l in x["seller_carry"]]
    v2 = [l for l in x["standing"] if l not in x["withdrawn"]]
    v3 = {l:x["old_priority"][l] if x["old_specs"][l]==x["new_specs"][l] else x["new_round"] for l in x["standing"]}
    v4 = [l for l in x["standing"] if l not in x["already_carried"]]
    v5 = {l:x["holds"].get(l,0) for l in x["standing"] if l in x["encumbered"]}
    v6 = {l:x["source_round"][l] for l in x["standing"]}
    v7 = [l for l in x["standing"] if x["source_round"][l]<x["new_round"]]
    v8 = [l for l in x["standing"] if l in x["bidder_carry"] and l not in x["expired"]]
    v9 = {l:x["approved_reserves"].get(l,x["reserves"][l]) for l in x["standing"]}
    return {'unsold-reoffer':v0,'standing-bid-reconsent':v1,'withdrawal-carry-veto':v2,'specification-priority-reset':v3,'carry-once-per-round':v4,'inherited-reservation':v5,'source-round-provenance':v6,'future-round-reoffer':v7,'authorization-expiry-carry':v8,'approved-reserve-revision':v9}
def check(label, actual, expected):
    observations.append({"check": label, "actual": actual, "expected": expected, "passed": actual == expected})
fixtures = [('normal contract', {'offered': ['A', 'B', 'C'], 'sold': ['A'], 'seller_carry': ['B'], 'standing': ['B', 'C'], 'bidder_carry': ['C'], 'withdrawn': ['B'], 'old_specs': {'B': 'v1', 'C': 'v1'}, 'new_specs': {'B': 'v2', 'C': 'v1'}, 'old_priority': {'B': 1, 'C': 2}, 'new_round': 3, 'source_round': {'A': 1, 'B': 1, 'C': 2}, 'already_carried': ['B'], 'holds': {'B': 5, 'C': 3}, 'encumbered': ['C'], 'expired': ['C'], 'reserves': {'B': 8, 'C': 6}, 'approved_reserves': {'B': 9}}, [['C'], ['C'], ['C'], ['C'], ['C']]), ('all seller carry', {'offered': ['A', 'B', 'C'], 'sold': ['A'], 'seller_carry': ['B', 'C'], 'standing': ['B', 'C'], 'bidder_carry': ['C'], 'withdrawn': ['B'], 'old_specs': {'B': 'v1', 'C': 'v1'}, 'new_specs': {'B': 'v2', 'C': 'v1'}, 'old_priority': {'B': 1, 'C': 2}, 'new_round': 3, 'source_round': {'A': 1, 'B': 1, 'C': 2}, 'already_carried': ['B'], 'holds': {'B': 5, 'C': 3}, 'encumbered': ['C'], 'expired': ['C'], 'reserves': {'B': 8, 'C': 6}, 'approved_reserves': {'B': 9}}, [['C'], ['C'], ['C'], ['C'], ['C']]), ('all bidder carry', {'offered': ['A', 'B', 'C'], 'sold': ['A'], 'seller_carry': ['B'], 'standing': ['B', 'C'], 'bidder_carry': ['B', 'C'], 'withdrawn': ['B'], 'old_specs': {'B': 'v1', 'C': 'v1'}, 'new_specs': {'B': 'v2', 'C': 'v1'}, 'old_priority': {'B': 1, 'C': 2}, 'new_round': 3, 'source_round': {'A': 1, 'B': 1, 'C': 2}, 'already_carried': ['B'], 'holds': {'B': 5, 'C': 3}, 'encumbered': ['C'], 'expired': ['C'], 'reserves': {'B': 8, 'C': 6}, 'approved_reserves': {'B': 9}}, [['B', 'C'], ['B', 'C'], ['B', 'C'], ['B', 'C'], ['B', 'C']]), ('no withdrawals', {'offered': ['A', 'B', 'C'], 'sold': ['A'], 'seller_carry': ['B'], 'standing': ['B', 'C'], 'bidder_carry': ['C'], 'withdrawn': [], 'old_specs': {'B': 'v1', 'C': 'v1'}, 'new_specs': {'B': 'v2', 'C': 'v1'}, 'old_priority': {'B': 1, 'C': 2}, 'new_round': 3, 'source_round': {'A': 1, 'B': 1, 'C': 2}, 'already_carried': ['B'], 'holds': {'B': 5, 'C': 3}, 'encumbered': ['C'], 'expired': ['C'], 'reserves': {'B': 8, 'C': 6}, 'approved_reserves': {'B': 9}}, [['C'], ['C'], ['C'], ['C'], ['C']]), ('unchanged lot specs', {'offered': ['A', 'B', 'C'], 'sold': ['A'], 'seller_carry': ['B'], 'standing': ['B', 'C'], 'bidder_carry': ['C'], 'withdrawn': ['B'], 'old_specs': {'B': 'v1', 'C': 'v1'}, 'new_specs': {'B': 'v1', 'C': 'v1'}, 'old_priority': {'B': 1, 'C': 2}, 'new_round': 3, 'source_round': {'A': 1, 'B': 1, 'C': 2}, 'already_carried': ['B'], 'holds': {'B': 5, 'C': 3}, 'encumbered': ['C'], 'expired': ['C'], 'reserves': {'B': 8, 'C': 6}, 'approved_reserves': {'B': 9}}, [['C'], ['C'], ['C'], ['C'], ['C']]), ('nothing already carried', {'offered': ['A', 'B', 'C'], 'sold': ['A'], 'seller_carry': ['B'], 'standing': ['B', 'C'], 'bidder_carry': ['C'], 'withdrawn': ['B'], 'old_specs': {'B': 'v1', 'C': 'v1'}, 'new_specs': {'B': 'v2', 'C': 'v1'}, 'old_priority': {'B': 1, 'C': 2}, 'new_round': 3, 'source_round': {'A': 1, 'B': 1, 'C': 2}, 'already_carried': [], 'holds': {'B': 5, 'C': 3}, 'encumbered': ['C'], 'expired': ['C'], 'reserves': {'B': 8, 'C': 6}, 'approved_reserves': {'B': 9}}, [['C'], ['C'], ['C'], ['C'], ['C']]), ('no expired authorization', {'offered': ['A', 'B', 'C'], 'sold': ['A'], 'seller_carry': ['B'], 'standing': ['B', 'C'], 'bidder_carry': ['C'], 'withdrawn': ['B'], 'old_specs': {'B': 'v1', 'C': 'v1'}, 'new_specs': {'B': 'v2', 'C': 'v1'}, 'old_priority': {'B': 1, 'C': 2}, 'new_round': 3, 'source_round': {'A': 1, 'B': 1, 'C': 2}, 'already_carried': ['B'], 'holds': {'B': 5, 'C': 3}, 'encumbered': ['C'], 'expired': [], 'reserves': {'B': 8, 'C': 6}, 'approved_reserves': {'B': 9}}, [['C'], ['C'], ['C'], ['C'], ['C']]), ('all sold', {'offered': ['A', 'B', 'C'], 'sold': ['A', 'B', 'C'], 'seller_carry': ['B'], 'standing': ['B', 'C'], 'bidder_carry': ['C'], 'withdrawn': ['B'], 'old_specs': {'B': 'v1', 'C': 'v1'}, 'new_specs': {'B': 'v2', 'C': 'v1'}, 'old_priority': {'B': 1, 'C': 2}, 'new_round': 3, 'source_round': {'A': 1, 'B': 1, 'C': 2}, 'already_carried': ['B'], 'holds': {'B': 5, 'C': 3}, 'encumbered': ['C'], 'expired': ['C'], 'reserves': {'B': 8, 'C': 6}, 'approved_reserves': {'B': 9}}, [['C'], ['C'], ['C'], ['C'], ['C']]), ('no encumbrance', {'offered': ['A', 'B', 'C'], 'sold': ['A'], 'seller_carry': ['B'], 'standing': ['B', 'C'], 'bidder_carry': ['C'], 'withdrawn': ['B'], 'old_specs': {'B': 'v1', 'C': 'v1'}, 'new_specs': {'B': 'v2', 'C': 'v1'}, 'old_priority': {'B': 1, 'C': 2}, 'new_round': 3, 'source_round': {'A': 1, 'B': 1, 'C': 2}, 'already_carried': ['B'], 'holds': {'B': 5, 'C': 3}, 'encumbered': [], 'expired': ['C'], 'reserves': {'B': 8, 'C': 6}, 'approved_reserves': {'B': 9}}, [['C'], ['C'], ['C'], ['C'], ['C']])]
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))['standing-bid-reconsent'], 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
normal contract['B']['C']Failed
all seller carry['B', 'C']['C']Failed
all bidder carry['B']['B', 'C']Failed
no withdrawals['B']['C']Failed
unchanged lot specs['B']['C']Failed
nothing already carried['B']['C']Failed
no expired authorization['B']['C']Failed
all sold['B']['C']Failed
no encumbrance['B']['C']Failed

SHA-256 / 307c9abd70a4c535f076653953c640c6d257efcab58cfb6e730d27cd9596df39

HELD IN THE MEMBER ARCHIVE

The verified repair and its recorded checks are member-only.

This mechanism has 9 recorded checks per implementation. The open-access tier publishes the failure and the unsuccessful fix; the repaired source that passes every check, and the observations that prove it, are available to members.

Every case sharing this mechanism uses the same contract and the same repair, so this one record is held back for all of them.

Member access is invitation-based. Sign in with your invited account to inspect the repair.

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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 2026-09-29T14:46:17.892946+00:00.

Case digest / cb2c1060310df92dc3f35adb8bac5f9527d197cd5846c963489f756905cfe071