FA-57196 / Auction allocation rules / Open access
Bilateral confirmation: same proposal version · case 01
Confirmations from different trade proposals are combined.
ROOT CAUSE
Confirmations from different trade proposals are combined.
VERIFIED REPAIR
For same proposal version, apply the stipulated decision x["buyer_version"]==x["seller_version"]==x["version"].
Unsuccessful approach: The attempted repair uses x["buyer_version"]==x["seller_version"]; the explicit regression cases demonstrate that this still violates the stipulated auction rule.
Case contract
After an auction allocation, buyer and seller confirmations reserve a specific trade version. A trade is final only when both parties confirm the same proposed version; rejection releases reservations but does not erase executed trades. Match identity differs from party identity. Named decision same-proposal-version: For same proposal version, apply the stipulated decision x["buyer_version"]==x["seller_version"]==x["version"].
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["buyer_accept"] and x["seller_accept"]
v1 = x["buyer_version"]==x["version"]
v2 = x["held"] if x["rejected"] and not x["executed"] else 0
v3 = max(0,x["held"]-x["fill"])
v4 = x["buyer_signer"]==x["buyer"] and x["buyer_accept"]
v5 = (x["seller_signer"]==x["seller"] or x["seller_signer"] in x["seller_delegates"]) and x["seller_accept"]
v6 = 0 if x["match_id"]==x["last_match"] else x["fill"]
v7 = x["reversed"] and x["executed"]
v8 = x["held"] if x["timeout"] and not x["executed"] else 0
v9 = [m for m in x["matched"] if m not in x["reported"]]
return {'both-party-confirmation':v0,'same-proposal-version':v1,'rejection-release':v2,'partial-fill-reservation':v3,'buyer-confirmation-author':v4,'seller-delegate-authorization':v5,'execution-match-replay':v6,'reversal-execution-guard':v7,'timeout-release-guard':v8,'unreported-match-output':v9}
def check(label, actual, expected):
observations.append({"check": label, "actual": actual, "expected": expected, "passed": actual == expected})
fixtures = [('normal contract', {'version': 2, 'buyer_version': 2, 'seller_version': 1, 'buyer_accept': True, 'seller_accept': True, 'rejected': False, 'executed': False, 'proposed': 5, 'held': 5, 'fill': 2, 'buyer': 'b', 'seller': 's', 'buyer_signer': 'b', 'seller_signer': 's', 'match_id': 'm2', 'last_match': 'm1', 'reversed': False, 'timeout': False, 'reported': ['m1'], 'matched': ['m1', 'm2'], 'seller_delegates': ['agent']}, [False, False, False, False, False]), ('buyer rejects', {'version': 2, 'buyer_version': 2, 'seller_version': 1, 'buyer_accept': False, 'seller_accept': True, 'rejected': False, 'executed': False, 'proposed': 5, 'held': 5, 'fill': 2, 'buyer': 'b', 'seller': 's', 'buyer_signer': 'b', 'seller_signer': 's', 'match_id': 'm2', 'last_match': 'm1', 'reversed': False, 'timeout': False, 'reported': ['m1'], 'matched': ['m1', 'm2'], 'seller_delegates': ['agent']}, [False, False, False, False, False]), ('older buyer', {'version': 2, 'buyer_version': 1, 'seller_version': 1, 'buyer_accept': True, 'seller_accept': True, 'rejected': False, 'executed': False, 'proposed': 5, 'held': 5, 'fill': 2, 'buyer': 'b', 'seller': 's', 'buyer_signer': 'b', 'seller_signer': 's', 'match_id': 'm2', 'last_match': 'm1', 'reversed': False, 'timeout': False, 'reported': ['m1'], 'matched': ['m1', 'm2'], 'seller_delegates': ['agent']}, [False, False, False, False, False]), ('buyer rejects / older buyer', {'version': 2, 'buyer_version': 1, 'seller_version': 1, 'buyer_accept': False, 'seller_accept': True, 'rejected': False, 'executed': False, 'proposed': 5, 'held': 5, 'fill': 2, 'buyer': 'b', 'seller': 's', 'buyer_signer': 'b', 'seller_signer': 's', 'match_id': 'm2', 'last_match': 'm1', 'reversed': False, 'timeout': False, 'reported': ['m1'], 'matched': ['m1', 'm2'], 'seller_delegates': ['agent']}, [False, False, False, False, False]), ('both current', {'version': 2, 'buyer_version': 2, 'seller_version': 2, 'buyer_accept': True, 'seller_accept': True, 'rejected': False, 'executed': False, 'proposed': 5, 'held': 5, 'fill': 2, 'buyer': 'b', 'seller': 's', 'buyer_signer': 'b', 'seller_signer': 's', 'match_id': 'm2', 'last_match': 'm1', 'reversed': False, 'timeout': False, 'reported': ['m1'], 'matched': ['m1', 'm2'], 'seller_delegates': ['agent']}, [True, True, True, True, True]), ('seller rejects', {'version': 2, 'buyer_version': 2, 'seller_version': 1, 'buyer_accept': True, 'seller_accept': False, 'rejected': False, 'executed': False, 'proposed': 5, 'held': 5, 'fill': 2, 'buyer': 'b', 'seller': 's', 'buyer_signer': 'b', 'seller_signer': 's', 'match_id': 'm2', 'last_match': 'm1', 'reversed': False, 'timeout': False, 'reported': ['m1'], 'matched': ['m1', 'm2'], 'seller_delegates': ['agent']}, [False, False, False, False, False]), ('trade rejected', {'version': 2, 'buyer_version': 2, 'seller_version': 1, 'buyer_accept': True, 'seller_accept': True, 'rejected': True, 'executed': False, 'proposed': 5, 'held': 5, 'fill': 2, 'buyer': 'b', 'seller': 's', 'buyer_signer': 'b', 'seller_signer': 's', 'match_id': 'm2', 'last_match': 'm1', 'reversed': False, 'timeout': False, 'reported': ['m1'], 'matched': ['m1', 'm2'], 'seller_delegates': ['agent']}, [False, False, False, False, False]), ('already executed', {'version': 2, 'buyer_version': 2, 'seller_version': 1, 'buyer_accept': True, 'seller_accept': True, 'rejected': False, 'executed': True, 'proposed': 5, 'held': 5, 'fill': 2, 'buyer': 'b', 'seller': 's', 'buyer_signer': 'b', 'seller_signer': 's', 'match_id': 'm2', 'last_match': 'm1', 'reversed': False, 'timeout': False, 'reported': ['m1'], 'matched': ['m1', 'm2'], 'seller_delegates': ['agent']}, [False, False, False, False, False]), ('wrong buyer signer', {'version': 2, 'buyer_version': 2, 'seller_version': 1, 'buyer_accept': True, 'seller_accept': True, 'rejected': False, 'executed': False, 'proposed': 5, 'held': 5, 'fill': 2, 'buyer': 'b', 'seller': 's', 'buyer_signer': 's', 'seller_signer': 's', 'match_id': 'm2', 'last_match': 'm1', 'reversed': False, 'timeout': False, 'reported': ['m1'], 'matched': ['m1', 'm2'], 'seller_delegates': ['agent']}, [False, False, False, False, False]), ('wrong seller signer', {'version': 2, 'buyer_version': 2, 'seller_version': 1, 'buyer_accept': True, 'seller_accept': True, 'rejected': False, 'executed': False, 'proposed': 5, 'held': 5, 'fill': 2, 'buyer': 'b', 'seller': 's', 'buyer_signer': 'b', 'seller_signer': 'b', 'match_id': 'm2', 'last_match': 'm1', 'reversed': False, 'timeout': False, 'reported': ['m1'], 'matched': ['m1', 'm2'], 'seller_delegates': ['agent']}, [False, False, False, False, False]), ('match replay', {'version': 2, 'buyer_version': 2, 'seller_version': 1, 'buyer_accept': True, 'seller_accept': True, 'rejected': False, 'executed': False, 'proposed': 5, 'held': 5, 'fill': 2, 'buyer': 'b', 'seller': 's', 'buyer_signer': 'b', 'seller_signer': 's', 'match_id': 'm1', 'last_match': 'm1', 'reversed': False, 'timeout': False, 'reported': ['m1'], 'matched': ['m1', 'm2'], 'seller_delegates': ['agent']}, [False, False, False, False, False])]
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))['same-proposal-version'], 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 | False | Failed |
| buyer rejects | True | False | Failed |
| older buyer | False | False | Passed |
| buyer rejects / older buyer | False | False | Passed |
| both current | True | True | Passed |
| seller rejects | True | False | Failed |
| trade rejected | True | False | Failed |
| already executed | True | False | Failed |
| wrong buyer signer | True | False | Failed |
| wrong seller signer | True | False | Failed |
| match replay | True | False | Failed |
SHA-256 / b85e09a6cb5ef29742cdc8269257f9a190b985652b66a0ee50f51499b16ef914
2 / The unsuccessful fix
Exit 1"""Failure Map reference implementation. Python standard library only."""
import json
N = 1
observations = []
def solve(x):
v0 = x["buyer_accept"] and x["seller_accept"]
v1 = x["buyer_version"]==x["seller_version"]
v2 = x["held"] if x["rejected"] and not x["executed"] else 0
v3 = max(0,x["held"]-x["fill"])
v4 = x["buyer_signer"]==x["buyer"] and x["buyer_accept"]
v5 = (x["seller_signer"]==x["seller"] or x["seller_signer"] in x["seller_delegates"]) and x["seller_accept"]
v6 = 0 if x["match_id"]==x["last_match"] else x["fill"]
v7 = x["reversed"] and x["executed"]
v8 = x["held"] if x["timeout"] and not x["executed"] else 0
v9 = [m for m in x["matched"] if m not in x["reported"]]
return {'both-party-confirmation':v0,'same-proposal-version':v1,'rejection-release':v2,'partial-fill-reservation':v3,'buyer-confirmation-author':v4,'seller-delegate-authorization':v5,'execution-match-replay':v6,'reversal-execution-guard':v7,'timeout-release-guard':v8,'unreported-match-output':v9}
def check(label, actual, expected):
observations.append({"check": label, "actual": actual, "expected": expected, "passed": actual == expected})
fixtures = [('normal contract', {'version': 2, 'buyer_version': 2, 'seller_version': 1, 'buyer_accept': True, 'seller_accept': True, 'rejected': False, 'executed': False, 'proposed': 5, 'held': 5, 'fill': 2, 'buyer': 'b', 'seller': 's', 'buyer_signer': 'b', 'seller_signer': 's', 'match_id': 'm2', 'last_match': 'm1', 'reversed': False, 'timeout': False, 'reported': ['m1'], 'matched': ['m1', 'm2'], 'seller_delegates': ['agent']}, [False, False, False, False, False]), ('buyer rejects', {'version': 2, 'buyer_version': 2, 'seller_version': 1, 'buyer_accept': False, 'seller_accept': True, 'rejected': False, 'executed': False, 'proposed': 5, 'held': 5, 'fill': 2, 'buyer': 'b', 'seller': 's', 'buyer_signer': 'b', 'seller_signer': 's', 'match_id': 'm2', 'last_match': 'm1', 'reversed': False, 'timeout': False, 'reported': ['m1'], 'matched': ['m1', 'm2'], 'seller_delegates': ['agent']}, [False, False, False, False, False]), ('older buyer', {'version': 2, 'buyer_version': 1, 'seller_version': 1, 'buyer_accept': True, 'seller_accept': True, 'rejected': False, 'executed': False, 'proposed': 5, 'held': 5, 'fill': 2, 'buyer': 'b', 'seller': 's', 'buyer_signer': 'b', 'seller_signer': 's', 'match_id': 'm2', 'last_match': 'm1', 'reversed': False, 'timeout': False, 'reported': ['m1'], 'matched': ['m1', 'm2'], 'seller_delegates': ['agent']}, [False, False, False, False, False]), ('buyer rejects / older buyer', {'version': 2, 'buyer_version': 1, 'seller_version': 1, 'buyer_accept': False, 'seller_accept': True, 'rejected': False, 'executed': False, 'proposed': 5, 'held': 5, 'fill': 2, 'buyer': 'b', 'seller': 's', 'buyer_signer': 'b', 'seller_signer': 's', 'match_id': 'm2', 'last_match': 'm1', 'reversed': False, 'timeout': False, 'reported': ['m1'], 'matched': ['m1', 'm2'], 'seller_delegates': ['agent']}, [False, False, False, False, False]), ('both current', {'version': 2, 'buyer_version': 2, 'seller_version': 2, 'buyer_accept': True, 'seller_accept': True, 'rejected': False, 'executed': False, 'proposed': 5, 'held': 5, 'fill': 2, 'buyer': 'b', 'seller': 's', 'buyer_signer': 'b', 'seller_signer': 's', 'match_id': 'm2', 'last_match': 'm1', 'reversed': False, 'timeout': False, 'reported': ['m1'], 'matched': ['m1', 'm2'], 'seller_delegates': ['agent']}, [True, True, True, True, True]), ('seller rejects', {'version': 2, 'buyer_version': 2, 'seller_version': 1, 'buyer_accept': True, 'seller_accept': False, 'rejected': False, 'executed': False, 'proposed': 5, 'held': 5, 'fill': 2, 'buyer': 'b', 'seller': 's', 'buyer_signer': 'b', 'seller_signer': 's', 'match_id': 'm2', 'last_match': 'm1', 'reversed': False, 'timeout': False, 'reported': ['m1'], 'matched': ['m1', 'm2'], 'seller_delegates': ['agent']}, [False, False, False, False, False]), ('trade rejected', {'version': 2, 'buyer_version': 2, 'seller_version': 1, 'buyer_accept': True, 'seller_accept': True, 'rejected': True, 'executed': False, 'proposed': 5, 'held': 5, 'fill': 2, 'buyer': 'b', 'seller': 's', 'buyer_signer': 'b', 'seller_signer': 's', 'match_id': 'm2', 'last_match': 'm1', 'reversed': False, 'timeout': False, 'reported': ['m1'], 'matched': ['m1', 'm2'], 'seller_delegates': ['agent']}, [False, False, False, False, False]), ('already executed', {'version': 2, 'buyer_version': 2, 'seller_version': 1, 'buyer_accept': True, 'seller_accept': True, 'rejected': False, 'executed': True, 'proposed': 5, 'held': 5, 'fill': 2, 'buyer': 'b', 'seller': 's', 'buyer_signer': 'b', 'seller_signer': 's', 'match_id': 'm2', 'last_match': 'm1', 'reversed': False, 'timeout': False, 'reported': ['m1'], 'matched': ['m1', 'm2'], 'seller_delegates': ['agent']}, [False, False, False, False, False]), ('wrong buyer signer', {'version': 2, 'buyer_version': 2, 'seller_version': 1, 'buyer_accept': True, 'seller_accept': True, 'rejected': False, 'executed': False, 'proposed': 5, 'held': 5, 'fill': 2, 'buyer': 'b', 'seller': 's', 'buyer_signer': 's', 'seller_signer': 's', 'match_id': 'm2', 'last_match': 'm1', 'reversed': False, 'timeout': False, 'reported': ['m1'], 'matched': ['m1', 'm2'], 'seller_delegates': ['agent']}, [False, False, False, False, False]), ('wrong seller signer', {'version': 2, 'buyer_version': 2, 'seller_version': 1, 'buyer_accept': True, 'seller_accept': True, 'rejected': False, 'executed': False, 'proposed': 5, 'held': 5, 'fill': 2, 'buyer': 'b', 'seller': 's', 'buyer_signer': 'b', 'seller_signer': 'b', 'match_id': 'm2', 'last_match': 'm1', 'reversed': False, 'timeout': False, 'reported': ['m1'], 'matched': ['m1', 'm2'], 'seller_delegates': ['agent']}, [False, False, False, False, False]), ('match replay', {'version': 2, 'buyer_version': 2, 'seller_version': 1, 'buyer_accept': True, 'seller_accept': True, 'rejected': False, 'executed': False, 'proposed': 5, 'held': 5, 'fill': 2, 'buyer': 'b', 'seller': 's', 'buyer_signer': 'b', 'seller_signer': 's', 'match_id': 'm1', 'last_match': 'm1', 'reversed': False, 'timeout': False, 'reported': ['m1'], 'matched': ['m1', 'm2'], 'seller_delegates': ['agent']}, [False, False, False, False, False])]
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))['same-proposal-version'], 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 | False | Passed |
| buyer rejects | False | False | Passed |
| older buyer | True | False | Failed |
| buyer rejects / older buyer | True | False | Failed |
| both current | True | True | Passed |
| seller rejects | False | False | Passed |
| trade rejected | False | False | Passed |
| already executed | False | False | Passed |
| wrong buyer signer | False | False | Passed |
| wrong seller signer | False | False | Passed |
| match replay | False | False | Passed |
SHA-256 / 541df4455c083ba1ec2c668c12b308651b18263b104daf3b3278ac7dea9fe027
3 / The verified repair
Exit 0"""Failure Map reference implementation. Python standard library only."""
import json
N = 1
observations = []
def solve(x):
v0 = x["buyer_accept"] and x["seller_accept"]
v1 = x["buyer_version"]==x["seller_version"]==x["version"]
v2 = x["held"] if x["rejected"] and not x["executed"] else 0
v3 = max(0,x["held"]-x["fill"])
v4 = x["buyer_signer"]==x["buyer"] and x["buyer_accept"]
v5 = (x["seller_signer"]==x["seller"] or x["seller_signer"] in x["seller_delegates"]) and x["seller_accept"]
v6 = 0 if x["match_id"]==x["last_match"] else x["fill"]
v7 = x["reversed"] and x["executed"]
v8 = x["held"] if x["timeout"] and not x["executed"] else 0
v9 = [m for m in x["matched"] if m not in x["reported"]]
return {'both-party-confirmation':v0,'same-proposal-version':v1,'rejection-release':v2,'partial-fill-reservation':v3,'buyer-confirmation-author':v4,'seller-delegate-authorization':v5,'execution-match-replay':v6,'reversal-execution-guard':v7,'timeout-release-guard':v8,'unreported-match-output':v9}
def check(label, actual, expected):
observations.append({"check": label, "actual": actual, "expected": expected, "passed": actual == expected})
fixtures = [('normal contract', {'version': 2, 'buyer_version': 2, 'seller_version': 1, 'buyer_accept': True, 'seller_accept': True, 'rejected': False, 'executed': False, 'proposed': 5, 'held': 5, 'fill': 2, 'buyer': 'b', 'seller': 's', 'buyer_signer': 'b', 'seller_signer': 's', 'match_id': 'm2', 'last_match': 'm1', 'reversed': False, 'timeout': False, 'reported': ['m1'], 'matched': ['m1', 'm2'], 'seller_delegates': ['agent']}, [False, False, False, False, False]), ('buyer rejects', {'version': 2, 'buyer_version': 2, 'seller_version': 1, 'buyer_accept': False, 'seller_accept': True, 'rejected': False, 'executed': False, 'proposed': 5, 'held': 5, 'fill': 2, 'buyer': 'b', 'seller': 's', 'buyer_signer': 'b', 'seller_signer': 's', 'match_id': 'm2', 'last_match': 'm1', 'reversed': False, 'timeout': False, 'reported': ['m1'], 'matched': ['m1', 'm2'], 'seller_delegates': ['agent']}, [False, False, False, False, False]), ('older buyer', {'version': 2, 'buyer_version': 1, 'seller_version': 1, 'buyer_accept': True, 'seller_accept': True, 'rejected': False, 'executed': False, 'proposed': 5, 'held': 5, 'fill': 2, 'buyer': 'b', 'seller': 's', 'buyer_signer': 'b', 'seller_signer': 's', 'match_id': 'm2', 'last_match': 'm1', 'reversed': False, 'timeout': False, 'reported': ['m1'], 'matched': ['m1', 'm2'], 'seller_delegates': ['agent']}, [False, False, False, False, False]), ('buyer rejects / older buyer', {'version': 2, 'buyer_version': 1, 'seller_version': 1, 'buyer_accept': False, 'seller_accept': True, 'rejected': False, 'executed': False, 'proposed': 5, 'held': 5, 'fill': 2, 'buyer': 'b', 'seller': 's', 'buyer_signer': 'b', 'seller_signer': 's', 'match_id': 'm2', 'last_match': 'm1', 'reversed': False, 'timeout': False, 'reported': ['m1'], 'matched': ['m1', 'm2'], 'seller_delegates': ['agent']}, [False, False, False, False, False]), ('both current', {'version': 2, 'buyer_version': 2, 'seller_version': 2, 'buyer_accept': True, 'seller_accept': True, 'rejected': False, 'executed': False, 'proposed': 5, 'held': 5, 'fill': 2, 'buyer': 'b', 'seller': 's', 'buyer_signer': 'b', 'seller_signer': 's', 'match_id': 'm2', 'last_match': 'm1', 'reversed': False, 'timeout': False, 'reported': ['m1'], 'matched': ['m1', 'm2'], 'seller_delegates': ['agent']}, [True, True, True, True, True]), ('seller rejects', {'version': 2, 'buyer_version': 2, 'seller_version': 1, 'buyer_accept': True, 'seller_accept': False, 'rejected': False, 'executed': False, 'proposed': 5, 'held': 5, 'fill': 2, 'buyer': 'b', 'seller': 's', 'buyer_signer': 'b', 'seller_signer': 's', 'match_id': 'm2', 'last_match': 'm1', 'reversed': False, 'timeout': False, 'reported': ['m1'], 'matched': ['m1', 'm2'], 'seller_delegates': ['agent']}, [False, False, False, False, False]), ('trade rejected', {'version': 2, 'buyer_version': 2, 'seller_version': 1, 'buyer_accept': True, 'seller_accept': True, 'rejected': True, 'executed': False, 'proposed': 5, 'held': 5, 'fill': 2, 'buyer': 'b', 'seller': 's', 'buyer_signer': 'b', 'seller_signer': 's', 'match_id': 'm2', 'last_match': 'm1', 'reversed': False, 'timeout': False, 'reported': ['m1'], 'matched': ['m1', 'm2'], 'seller_delegates': ['agent']}, [False, False, False, False, False]), ('already executed', {'version': 2, 'buyer_version': 2, 'seller_version': 1, 'buyer_accept': True, 'seller_accept': True, 'rejected': False, 'executed': True, 'proposed': 5, 'held': 5, 'fill': 2, 'buyer': 'b', 'seller': 's', 'buyer_signer': 'b', 'seller_signer': 's', 'match_id': 'm2', 'last_match': 'm1', 'reversed': False, 'timeout': False, 'reported': ['m1'], 'matched': ['m1', 'm2'], 'seller_delegates': ['agent']}, [False, False, False, False, False]), ('wrong buyer signer', {'version': 2, 'buyer_version': 2, 'seller_version': 1, 'buyer_accept': True, 'seller_accept': True, 'rejected': False, 'executed': False, 'proposed': 5, 'held': 5, 'fill': 2, 'buyer': 'b', 'seller': 's', 'buyer_signer': 's', 'seller_signer': 's', 'match_id': 'm2', 'last_match': 'm1', 'reversed': False, 'timeout': False, 'reported': ['m1'], 'matched': ['m1', 'm2'], 'seller_delegates': ['agent']}, [False, False, False, False, False]), ('wrong seller signer', {'version': 2, 'buyer_version': 2, 'seller_version': 1, 'buyer_accept': True, 'seller_accept': True, 'rejected': False, 'executed': False, 'proposed': 5, 'held': 5, 'fill': 2, 'buyer': 'b', 'seller': 's', 'buyer_signer': 'b', 'seller_signer': 'b', 'match_id': 'm2', 'last_match': 'm1', 'reversed': False, 'timeout': False, 'reported': ['m1'], 'matched': ['m1', 'm2'], 'seller_delegates': ['agent']}, [False, False, False, False, False]), ('match replay', {'version': 2, 'buyer_version': 2, 'seller_version': 1, 'buyer_accept': True, 'seller_accept': True, 'rejected': False, 'executed': False, 'proposed': 5, 'held': 5, 'fill': 2, 'buyer': 'b', 'seller': 's', 'buyer_signer': 'b', 'seller_signer': 's', 'match_id': 'm1', 'last_match': 'm1', 'reversed': False, 'timeout': False, 'reported': ['m1'], 'matched': ['m1', 'm2'], 'seller_delegates': ['agent']}, [False, False, False, False, False])]
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))['same-proposal-version'], 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 | False | Passed |
| buyer rejects | False | False | Passed |
| older buyer | False | False | Passed |
| buyer rejects / older buyer | False | False | Passed |
| both current | True | True | Passed |
| seller rejects | False | False | Passed |
| trade rejected | False | False | Passed |
| already executed | False | False | Passed |
| wrong buyer signer | False | False | Passed |
| wrong seller signer | False | False | Passed |
| match replay | False | False | Passed |
SHA-256 / 44d96d732eb846503ac0c42be63af9c69e7213663f239184a520d79afa6a7baf
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 2026-09-29T14:46:14.348678+00:00.
Case digest / 48ebf68a4ed298cadb1d5099c4ae01f639fc73083b286f81a0d0d364a463e252