FA-57551 / Auction allocation rules / Open access
Round carryover: withdrawal carry veto · case 01
Withdrawn prior-round offers revive during carryover.
ROOT CAUSE
Withdrawn prior-round offers revive during carryover.
VERIFIED REPAIR
For withdrawal carry veto, apply the stipulated decision [l for l in x["standing"] if l not in x["withdrawn"]].
Unsuccessful approach: The attempted repair uses [l for l in x["standing"] if l not in x["expired"]]; 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 withdrawal-carry-veto: For withdrawal carry veto, apply the stipulated decision [l for l in x["standing"] if l not in x["withdrawn"]].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 = [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["bidder_carry"]]
v2 = x["standing"]
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}}, [['C'], ['C'], ['C'], ['C'], ['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}}, [['B', 'C'], ['B', 'C'], ['B', 'C'], ['B', 'C'], ['B', '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))['withdrawal-carry-veto'], 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 | ['B', 'C'] | ['C'] | Failed |
| all seller carry | ['B', 'C'] | ['C'] | Failed |
| all bidder carry | ['B', 'C'] | ['C'] | Failed |
| no withdrawals | ['B', 'C'] | ['B', 'C'] | Passed |
| 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 / 1eb70bfa86b495b2fabe02c06694414e13e4d71cb13edf21ec8a2d159295610e
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["bidder_carry"]]
v2 = [l for l in x["standing"] if l not in x["expired"]]
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}}, [['C'], ['C'], ['C'], ['C'], ['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}}, [['B', 'C'], ['B', 'C'], ['B', 'C'], ['B', 'C'], ['B', '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))['withdrawal-carry-veto'], 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 | ['B'] | ['C'] | Failed |
| all seller carry | ['B'] | ['C'] | Failed |
| all bidder carry | ['B'] | ['C'] | Failed |
| no withdrawals | ['B'] | ['B', 'C'] | Failed |
| unchanged lot specs | ['B'] | ['C'] | Failed |
| nothing already carried | ['B'] | ['C'] | Failed |
| no expired authorization | ['B', 'C'] | ['C'] | Failed |
| all sold | ['B'] | ['C'] | Failed |
| no encumbrance | ['B'] | ['C'] | Failed |
SHA-256 / 4d1c6890efaeb91387f6c08e13bfb37f5be6856cd5f63a111601d8fff893a0f5
3 / The verified repair
Exit 0"""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["bidder_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}}, [['C'], ['C'], ['C'], ['C'], ['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}}, [['B', 'C'], ['B', 'C'], ['B', 'C'], ['B', 'C'], ['B', '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))['withdrawal-carry-veto'], 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 | ['C'] | ['C'] | Passed |
| all seller carry | ['C'] | ['C'] | Passed |
| all bidder carry | ['C'] | ['C'] | Passed |
| no withdrawals | ['B', 'C'] | ['B', 'C'] | Passed |
| unchanged lot specs | ['C'] | ['C'] | Passed |
| nothing already carried | ['C'] | ['C'] | Passed |
| no expired authorization | ['C'] | ['C'] | Passed |
| all sold | ['C'] | ['C'] | Passed |
| no encumbrance | ['C'] | ['C'] | Passed |
SHA-256 / 4ca4215f214230c7b3087e0a02b6c070c13ef949287da85e612aa674d8147691
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 2026-09-29T14:46:17.912865+00:00.
Case digest / bc338323eb9671a7818dba4c42153eea70e956483356542b490a7ced81a34352