FA-56646 / Auction allocation rules / Open access

Proxy instructions: ceiling exhaustion · case 01

Proxy emits an offer after its authorization is exhausted.

Verified by executionVariant 1 · 11 checks per implementationDownload source bundle ↓JSON ↗

ROOT CAUSE

Proxy emits an offer after its authorization is exhausted.

VERIFIED REPAIR

For ceiling exhaustion, apply the stipulated decision x["current"]<x["ceiling"] and x["increment"]>0.

Unsuccessful approach: The attempted repair uses x["current"]<x["ceiling"]; the explicit regression cases demonstrate that this still violates the stipulated auction rule.

Case contract

A bidder authorizes a bounded proxy to submit offers for a specific lot. A proxy instruction specifies a price ceiling, per-step increment, remaining quantity, owner consent and a one-use trigger token. Outputs are actionable submissions, not an optimal bidding strategy. Named decision ceiling-exhaustion: For ceiling exhaustion, apply the stipulated decision x["current"]<x["ceiling"] and x["increment"]>0.

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 = min(x["ceiling"],x["current"]+x["increment"])
    v1 = x["current"]<=x["ceiling"]
    v2 = max(0,x["quantity"]-x["filled"])
    v3 = x["enabled"] and not x["owner_present"]
    v4 = [] if x["token"]==x["last_token"] else [x["lot"]]
    v5 = x["lot"] in x["authorized_lots"]
    v6 = x["enabled"] and not x["suspended"]
    v7 = x["manual_price"] if x["manual_active"] else x["current"]
    v8 = min(max(0,x["quantity"]-x["filled"]),x["credit"]//max(1,x["unit_hold"]))
    v9 = [t for t in x["triggers"] if t in x["allowed"]] if x["auction_open"] else []
    return {'bounded-next-offer':v0,'ceiling-exhaustion':v1,'remaining-proxy-size':v2,'manual-control-handoff':v3,'one-trigger-submission':v4,'lot-mandate':v5,'suspension-resume':v6,'manual-price-precedence':v7,'proxy-collateral-size':v8,'closed-auction-trigger':v9}
def check(label, actual, expected):
    observations.append({"check": label, "actual": actual, "expected": expected, "passed": actual == expected})
fixtures = [('ceiling reached', {'current': 16, 'ceiling': 16, 'increment': 3, 'quantity': 5, 'filled': 2, 'enabled': True, 'owner_present': False, 'token': 't2', 'last_token': 't1', 'lot': 'A', 'authorized_lots': ['A'], 'suspended': False, 'manual_price': 12, 'manual_active': True, 'credit': 100, 'unit_hold': 8, 'triggers': ['outbid', 'outbid', 'price'], 'allowed': ['outbid'], 'auction_open': True}, [False, False, False, False, False]), ('zero increment', {'current': 10, 'ceiling': 16, 'increment': 0, 'quantity': 5, 'filled': 2, 'enabled': True, 'owner_present': False, 'token': 't2', 'last_token': 't1', 'lot': 'A', 'authorized_lots': ['A'], 'suspended': False, 'manual_price': 12, 'manual_active': True, 'credit': 100, 'unit_hold': 8, 'triggers': ['outbid', 'outbid', 'price'], 'allowed': ['outbid'], 'auction_open': True}, [False, False, False, False, False]), ('step exceeds ceiling / zero increment', {'current': 15, 'ceiling': 16, 'increment': 0, 'quantity': 5, 'filled': 2, 'enabled': True, 'owner_present': False, 'token': 't2', 'last_token': 't1', 'lot': 'A', 'authorized_lots': ['A'], 'suspended': False, 'manual_price': 12, 'manual_active': True, 'credit': 100, 'unit_hold': 8, 'triggers': ['outbid', 'outbid', 'price'], 'allowed': ['outbid'], 'auction_open': True}, [False, False, False, False, False]), ('normal contract', {'current': 10, 'ceiling': 16, 'increment': 3, 'quantity': 5, 'filled': 2, 'enabled': True, 'owner_present': False, 'token': 't2', 'last_token': 't1', 'lot': 'A', 'authorized_lots': ['A'], 'suspended': False, 'manual_price': 12, 'manual_active': True, 'credit': 100, 'unit_hold': 8, 'triggers': ['outbid', 'outbid', 'price'], 'allowed': ['outbid'], 'auction_open': True}, [True, True, True, True, True]), ('step exceeds ceiling', {'current': 15, 'ceiling': 16, 'increment': 3, 'quantity': 5, 'filled': 2, 'enabled': True, 'owner_present': False, 'token': 't2', 'last_token': 't1', 'lot': 'A', 'authorized_lots': ['A'], 'suspended': False, 'manual_price': 12, 'manual_active': True, 'credit': 100, 'unit_hold': 8, 'triggers': ['outbid', 'outbid', 'price'], 'allowed': ['outbid'], 'auction_open': True}, [True, True, True, True, True]), ('disabled instruction', {'current': 10, 'ceiling': 16, 'increment': 3, 'quantity': 5, 'filled': 2, 'enabled': False, 'owner_present': False, 'token': 't2', 'last_token': 't1', 'lot': 'A', 'authorized_lots': ['A'], 'suspended': False, 'manual_price': 12, 'manual_active': True, 'credit': 100, 'unit_hold': 8, 'triggers': ['outbid', 'outbid', 'price'], 'allowed': ['outbid'], 'auction_open': True}, [True, True, True, True, True]), ('owner controls bid', {'current': 10, 'ceiling': 16, 'increment': 3, 'quantity': 5, 'filled': 2, 'enabled': True, 'owner_present': True, 'token': 't2', 'last_token': 't1', 'lot': 'A', 'authorized_lots': ['A'], 'suspended': False, 'manual_price': 12, 'manual_active': True, 'credit': 100, 'unit_hold': 8, 'triggers': ['outbid', 'outbid', 'price'], 'allowed': ['outbid'], 'auction_open': True}, [True, True, True, True, True]), ('token replay', {'current': 10, 'ceiling': 16, 'increment': 3, 'quantity': 5, 'filled': 2, 'enabled': True, 'owner_present': False, 'token': 't1', 'last_token': 't1', 'lot': 'A', 'authorized_lots': ['A'], 'suspended': False, 'manual_price': 12, 'manual_active': True, 'credit': 100, 'unit_hold': 8, 'triggers': ['outbid', 'outbid', 'price'], 'allowed': ['outbid'], 'auction_open': True}, [True, True, True, True, True]), ('wrong lot', {'current': 10, 'ceiling': 16, 'increment': 3, 'quantity': 5, 'filled': 2, 'enabled': True, 'owner_present': False, 'token': 't2', 'last_token': 't1', 'lot': 'B', 'authorized_lots': ['A'], 'suspended': False, 'manual_price': 12, 'manual_active': True, 'credit': 100, 'unit_hold': 8, 'triggers': ['outbid', 'outbid', 'price'], 'allowed': ['outbid'], 'auction_open': True}, [True, True, True, True, True]), ('suspended', {'current': 10, 'ceiling': 16, 'increment': 3, 'quantity': 5, 'filled': 2, 'enabled': True, 'owner_present': False, 'token': 't2', 'last_token': 't1', 'lot': 'A', 'authorized_lots': ['A'], 'suspended': True, 'manual_price': 12, 'manual_active': True, 'credit': 100, 'unit_hold': 8, 'triggers': ['outbid', 'outbid', 'price'], 'allowed': ['outbid'], 'auction_open': True}, [True, True, True, True, True]), ('manual override absent', {'current': 10, 'ceiling': 16, 'increment': 3, 'quantity': 5, 'filled': 2, 'enabled': True, 'owner_present': False, 'token': 't2', 'last_token': 't1', 'lot': 'A', 'authorized_lots': ['A'], 'suspended': False, 'manual_price': 12, 'manual_active': False, 'credit': 100, 'unit_hold': 8, 'triggers': ['outbid', 'outbid', 'price'], 'allowed': ['outbid'], 'auction_open': True}, [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', '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))['ceiling-exhaustion'], 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
ceiling reached	`True`	`False`	Failed
zero increment	`True`	`False`	Failed
step exceeds ceiling / zero increment	`True`	`False`	Failed
normal contract	`True`	`True`	Passed
step exceeds ceiling	`True`	`True`	Passed
disabled instruction	`True`	`True`	Passed
owner controls bid	`True`	`True`	Passed
token replay	`True`	`True`	Passed
wrong lot	`True`	`True`	Passed
suspended	`True`	`True`	Passed
manual override absent	`True`	`True`	Passed

SHA-256 / fe17378def982f798a3f0080b0f75aa103d7224c8bb9d753b26e42c1cc6d63fb

2 / The unsuccessful fix

Exit 1

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

N = 1
observations = []
def solve(x):
    v0 = min(x["ceiling"],x["current"]+x["increment"])
    v1 = x["current"]<x["ceiling"]
    v2 = max(0,x["quantity"]-x["filled"])
    v3 = x["enabled"] and not x["owner_present"]
    v4 = [] if x["token"]==x["last_token"] else [x["lot"]]
    v5 = x["lot"] in x["authorized_lots"]
    v6 = x["enabled"] and not x["suspended"]
    v7 = x["manual_price"] if x["manual_active"] else x["current"]
    v8 = min(max(0,x["quantity"]-x["filled"]),x["credit"]//max(1,x["unit_hold"]))
    v9 = [t for t in x["triggers"] if t in x["allowed"]] if x["auction_open"] else []
    return {'bounded-next-offer':v0,'ceiling-exhaustion':v1,'remaining-proxy-size':v2,'manual-control-handoff':v3,'one-trigger-submission':v4,'lot-mandate':v5,'suspension-resume':v6,'manual-price-precedence':v7,'proxy-collateral-size':v8,'closed-auction-trigger':v9}
def check(label, actual, expected):
    observations.append({"check": label, "actual": actual, "expected": expected, "passed": actual == expected})
fixtures = [('ceiling reached', {'current': 16, 'ceiling': 16, 'increment': 3, 'quantity': 5, 'filled': 2, 'enabled': True, 'owner_present': False, 'token': 't2', 'last_token': 't1', 'lot': 'A', 'authorized_lots': ['A'], 'suspended': False, 'manual_price': 12, 'manual_active': True, 'credit': 100, 'unit_hold': 8, 'triggers': ['outbid', 'outbid', 'price'], 'allowed': ['outbid'], 'auction_open': True}, [False, False, False, False, False]), ('zero increment', {'current': 10, 'ceiling': 16, 'increment': 0, 'quantity': 5, 'filled': 2, 'enabled': True, 'owner_present': False, 'token': 't2', 'last_token': 't1', 'lot': 'A', 'authorized_lots': ['A'], 'suspended': False, 'manual_price': 12, 'manual_active': True, 'credit': 100, 'unit_hold': 8, 'triggers': ['outbid', 'outbid', 'price'], 'allowed': ['outbid'], 'auction_open': True}, [False, False, False, False, False]), ('step exceeds ceiling / zero increment', {'current': 15, 'ceiling': 16, 'increment': 0, 'quantity': 5, 'filled': 2, 'enabled': True, 'owner_present': False, 'token': 't2', 'last_token': 't1', 'lot': 'A', 'authorized_lots': ['A'], 'suspended': False, 'manual_price': 12, 'manual_active': True, 'credit': 100, 'unit_hold': 8, 'triggers': ['outbid', 'outbid', 'price'], 'allowed': ['outbid'], 'auction_open': True}, [False, False, False, False, False]), ('normal contract', {'current': 10, 'ceiling': 16, 'increment': 3, 'quantity': 5, 'filled': 2, 'enabled': True, 'owner_present': False, 'token': 't2', 'last_token': 't1', 'lot': 'A', 'authorized_lots': ['A'], 'suspended': False, 'manual_price': 12, 'manual_active': True, 'credit': 100, 'unit_hold': 8, 'triggers': ['outbid', 'outbid', 'price'], 'allowed': ['outbid'], 'auction_open': True}, [True, True, True, True, True]), ('step exceeds ceiling', {'current': 15, 'ceiling': 16, 'increment': 3, 'quantity': 5, 'filled': 2, 'enabled': True, 'owner_present': False, 'token': 't2', 'last_token': 't1', 'lot': 'A', 'authorized_lots': ['A'], 'suspended': False, 'manual_price': 12, 'manual_active': True, 'credit': 100, 'unit_hold': 8, 'triggers': ['outbid', 'outbid', 'price'], 'allowed': ['outbid'], 'auction_open': True}, [True, True, True, True, True]), ('disabled instruction', {'current': 10, 'ceiling': 16, 'increment': 3, 'quantity': 5, 'filled': 2, 'enabled': False, 'owner_present': False, 'token': 't2', 'last_token': 't1', 'lot': 'A', 'authorized_lots': ['A'], 'suspended': False, 'manual_price': 12, 'manual_active': True, 'credit': 100, 'unit_hold': 8, 'triggers': ['outbid', 'outbid', 'price'], 'allowed': ['outbid'], 'auction_open': True}, [True, True, True, True, True]), ('owner controls bid', {'current': 10, 'ceiling': 16, 'increment': 3, 'quantity': 5, 'filled': 2, 'enabled': True, 'owner_present': True, 'token': 't2', 'last_token': 't1', 'lot': 'A', 'authorized_lots': ['A'], 'suspended': False, 'manual_price': 12, 'manual_active': True, 'credit': 100, 'unit_hold': 8, 'triggers': ['outbid', 'outbid', 'price'], 'allowed': ['outbid'], 'auction_open': True}, [True, True, True, True, True]), ('token replay', {'current': 10, 'ceiling': 16, 'increment': 3, 'quantity': 5, 'filled': 2, 'enabled': True, 'owner_present': False, 'token': 't1', 'last_token': 't1', 'lot': 'A', 'authorized_lots': ['A'], 'suspended': False, 'manual_price': 12, 'manual_active': True, 'credit': 100, 'unit_hold': 8, 'triggers': ['outbid', 'outbid', 'price'], 'allowed': ['outbid'], 'auction_open': True}, [True, True, True, True, True]), ('wrong lot', {'current': 10, 'ceiling': 16, 'increment': 3, 'quantity': 5, 'filled': 2, 'enabled': True, 'owner_present': False, 'token': 't2', 'last_token': 't1', 'lot': 'B', 'authorized_lots': ['A'], 'suspended': False, 'manual_price': 12, 'manual_active': True, 'credit': 100, 'unit_hold': 8, 'triggers': ['outbid', 'outbid', 'price'], 'allowed': ['outbid'], 'auction_open': True}, [True, True, True, True, True]), ('suspended', {'current': 10, 'ceiling': 16, 'increment': 3, 'quantity': 5, 'filled': 2, 'enabled': True, 'owner_present': False, 'token': 't2', 'last_token': 't1', 'lot': 'A', 'authorized_lots': ['A'], 'suspended': True, 'manual_price': 12, 'manual_active': True, 'credit': 100, 'unit_hold': 8, 'triggers': ['outbid', 'outbid', 'price'], 'allowed': ['outbid'], 'auction_open': True}, [True, True, True, True, True]), ('manual override absent', {'current': 10, 'ceiling': 16, 'increment': 3, 'quantity': 5, 'filled': 2, 'enabled': True, 'owner_present': False, 'token': 't2', 'last_token': 't1', 'lot': 'A', 'authorized_lots': ['A'], 'suspended': False, 'manual_price': 12, 'manual_active': False, 'credit': 100, 'unit_hold': 8, 'triggers': ['outbid', 'outbid', 'price'], 'allowed': ['outbid'], 'auction_open': True}, [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', '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))['ceiling-exhaustion'], 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
ceiling reached	`False`	`False`	Passed
zero increment	`True`	`False`	Failed
step exceeds ceiling / zero increment	`True`	`False`	Failed
normal contract	`True`	`True`	Passed
step exceeds ceiling	`True`	`True`	Passed
disabled instruction	`True`	`True`	Passed
owner controls bid	`True`	`True`	Passed
token replay	`True`	`True`	Passed
wrong lot	`True`	`True`	Passed
suspended	`True`	`True`	Passed
manual override absent	`True`	`True`	Passed

SHA-256 / cb92ab28a8cfa6aa36dbb933879c48b960cc1c5fb0e98a9105943d5dc4f7f269

3 / The verified repair

Exit 0

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

N = 1
observations = []
def solve(x):
    v0 = min(x["ceiling"],x["current"]+x["increment"])
    v1 = x["current"]<x["ceiling"] and x["increment"]>0
    v2 = max(0,x["quantity"]-x["filled"])
    v3 = x["enabled"] and not x["owner_present"]
    v4 = [] if x["token"]==x["last_token"] else [x["lot"]]
    v5 = x["lot"] in x["authorized_lots"]
    v6 = x["enabled"] and not x["suspended"]
    v7 = x["manual_price"] if x["manual_active"] else x["current"]
    v8 = min(max(0,x["quantity"]-x["filled"]),x["credit"]//max(1,x["unit_hold"]))
    v9 = [t for t in x["triggers"] if t in x["allowed"]] if x["auction_open"] else []
    return {'bounded-next-offer':v0,'ceiling-exhaustion':v1,'remaining-proxy-size':v2,'manual-control-handoff':v3,'one-trigger-submission':v4,'lot-mandate':v5,'suspension-resume':v6,'manual-price-precedence':v7,'proxy-collateral-size':v8,'closed-auction-trigger':v9}
def check(label, actual, expected):
    observations.append({"check": label, "actual": actual, "expected": expected, "passed": actual == expected})
fixtures = [('ceiling reached', {'current': 16, 'ceiling': 16, 'increment': 3, 'quantity': 5, 'filled': 2, 'enabled': True, 'owner_present': False, 'token': 't2', 'last_token': 't1', 'lot': 'A', 'authorized_lots': ['A'], 'suspended': False, 'manual_price': 12, 'manual_active': True, 'credit': 100, 'unit_hold': 8, 'triggers': ['outbid', 'outbid', 'price'], 'allowed': ['outbid'], 'auction_open': True}, [False, False, False, False, False]), ('zero increment', {'current': 10, 'ceiling': 16, 'increment': 0, 'quantity': 5, 'filled': 2, 'enabled': True, 'owner_present': False, 'token': 't2', 'last_token': 't1', 'lot': 'A', 'authorized_lots': ['A'], 'suspended': False, 'manual_price': 12, 'manual_active': True, 'credit': 100, 'unit_hold': 8, 'triggers': ['outbid', 'outbid', 'price'], 'allowed': ['outbid'], 'auction_open': True}, [False, False, False, False, False]), ('step exceeds ceiling / zero increment', {'current': 15, 'ceiling': 16, 'increment': 0, 'quantity': 5, 'filled': 2, 'enabled': True, 'owner_present': False, 'token': 't2', 'last_token': 't1', 'lot': 'A', 'authorized_lots': ['A'], 'suspended': False, 'manual_price': 12, 'manual_active': True, 'credit': 100, 'unit_hold': 8, 'triggers': ['outbid', 'outbid', 'price'], 'allowed': ['outbid'], 'auction_open': True}, [False, False, False, False, False]), ('normal contract', {'current': 10, 'ceiling': 16, 'increment': 3, 'quantity': 5, 'filled': 2, 'enabled': True, 'owner_present': False, 'token': 't2', 'last_token': 't1', 'lot': 'A', 'authorized_lots': ['A'], 'suspended': False, 'manual_price': 12, 'manual_active': True, 'credit': 100, 'unit_hold': 8, 'triggers': ['outbid', 'outbid', 'price'], 'allowed': ['outbid'], 'auction_open': True}, [True, True, True, True, True]), ('step exceeds ceiling', {'current': 15, 'ceiling': 16, 'increment': 3, 'quantity': 5, 'filled': 2, 'enabled': True, 'owner_present': False, 'token': 't2', 'last_token': 't1', 'lot': 'A', 'authorized_lots': ['A'], 'suspended': False, 'manual_price': 12, 'manual_active': True, 'credit': 100, 'unit_hold': 8, 'triggers': ['outbid', 'outbid', 'price'], 'allowed': ['outbid'], 'auction_open': True}, [True, True, True, True, True]), ('disabled instruction', {'current': 10, 'ceiling': 16, 'increment': 3, 'quantity': 5, 'filled': 2, 'enabled': False, 'owner_present': False, 'token': 't2', 'last_token': 't1', 'lot': 'A', 'authorized_lots': ['A'], 'suspended': False, 'manual_price': 12, 'manual_active': True, 'credit': 100, 'unit_hold': 8, 'triggers': ['outbid', 'outbid', 'price'], 'allowed': ['outbid'], 'auction_open': True}, [True, True, True, True, True]), ('owner controls bid', {'current': 10, 'ceiling': 16, 'increment': 3, 'quantity': 5, 'filled': 2, 'enabled': True, 'owner_present': True, 'token': 't2', 'last_token': 't1', 'lot': 'A', 'authorized_lots': ['A'], 'suspended': False, 'manual_price': 12, 'manual_active': True, 'credit': 100, 'unit_hold': 8, 'triggers': ['outbid', 'outbid', 'price'], 'allowed': ['outbid'], 'auction_open': True}, [True, True, True, True, True]), ('token replay', {'current': 10, 'ceiling': 16, 'increment': 3, 'quantity': 5, 'filled': 2, 'enabled': True, 'owner_present': False, 'token': 't1', 'last_token': 't1', 'lot': 'A', 'authorized_lots': ['A'], 'suspended': False, 'manual_price': 12, 'manual_active': True, 'credit': 100, 'unit_hold': 8, 'triggers': ['outbid', 'outbid', 'price'], 'allowed': ['outbid'], 'auction_open': True}, [True, True, True, True, True]), ('wrong lot', {'current': 10, 'ceiling': 16, 'increment': 3, 'quantity': 5, 'filled': 2, 'enabled': True, 'owner_present': False, 'token': 't2', 'last_token': 't1', 'lot': 'B', 'authorized_lots': ['A'], 'suspended': False, 'manual_price': 12, 'manual_active': True, 'credit': 100, 'unit_hold': 8, 'triggers': ['outbid', 'outbid', 'price'], 'allowed': ['outbid'], 'auction_open': True}, [True, True, True, True, True]), ('suspended', {'current': 10, 'ceiling': 16, 'increment': 3, 'quantity': 5, 'filled': 2, 'enabled': True, 'owner_present': False, 'token': 't2', 'last_token': 't1', 'lot': 'A', 'authorized_lots': ['A'], 'suspended': True, 'manual_price': 12, 'manual_active': True, 'credit': 100, 'unit_hold': 8, 'triggers': ['outbid', 'outbid', 'price'], 'allowed': ['outbid'], 'auction_open': True}, [True, True, True, True, True]), ('manual override absent', {'current': 10, 'ceiling': 16, 'increment': 3, 'quantity': 5, 'filled': 2, 'enabled': True, 'owner_present': False, 'token': 't2', 'last_token': 't1', 'lot': 'A', 'authorized_lots': ['A'], 'suspended': False, 'manual_price': 12, 'manual_active': False, 'credit': 100, 'unit_hold': 8, 'triggers': ['outbid', 'outbid', 'price'], 'allowed': ['outbid'], 'auction_open': True}, [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', '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))['ceiling-exhaustion'], 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
ceiling reached	`False`	`False`	Passed
zero increment	`False`	`False`	Passed
step exceeds ceiling / zero increment	`False`	`False`	Passed
normal contract	`True`	`True`	Passed
step exceeds ceiling	`True`	`True`	Passed
disabled instruction	`True`	`True`	Passed
owner controls bid	`True`	`True`	Passed
token replay	`True`	`True`	Passed
wrong lot	`True`	`True`	Passed
suspended	`True`	`True`	Passed
manual override absent	`True`	`True`	Passed

SHA-256 / 4263328c01da27fc1af322538feba3d05abe6de629948ac5634703e96de40851

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 2026-09-29T14:46:09.019679+00:00.

Case digest / 1af3b42b1dd395410cf9fcba96b190b7731ec39b83c55f1afecb736927af5ab4