{"abstract":"Household members are drained before the member who is redeeming.","category":"Loyalty points ledgers","checks":7,"contract":"Input {balances:{member:pts}, caps:{member:max contribution}, requester, pts}. The requester contributes their full balance first (caps never apply to the requester). Other members contribute up to min(balance, cap), in descending order of that usable amount, ties by name. If total usable points are short return {\"error\":\"insufficient\"}. Return {draws:[[member,pts]]} with zero draws omitted.","evaluation_group":"w2-loyalty-points-ledgers-household-pool","failed_approach":"Putting the requester last reverses the stipulated priority.","family":"w2-loyalty-points-ledgers-household-pool-requester-priority","id":"FA-60816","implementations":{"attempt":{"sha256":"4387891f74e3b1197caa001c9ec8bbd2ec121d26ac03ed2099c8bebb9240776f","source":"\"\"\"Failure Map reference implementation. Python standard library only.\"\"\"\nimport json\n\nN = 1\nobservations = []\ndef solve(x):\n    bal = x['balances']\n    caps = x['caps']\n    rq = x['requester']\n    usable = lambda m: bal[m] if m == rq else min(bal[m], caps.get(m, bal[m]))\n    if x['pts'] > sum(usable(m) for m in bal):\n        return {'error': 'insufficient'}\n    others = sorted([m for m in bal if m != rq], key=lambda m: (-usable(m), m))\n    need = x['pts']\n    draws = []\n    for m in others + [rq]:\n        t = min(need, usable(m))\n        if t > 0:\n            draws.append([m, t])\n            need -= t\n    return {'draws': draws}\ndef check(label, actual, expected):\n    observations.append({\"check\": label, \"actual\": actual, \"expected\": expected, \"passed\": actual == expected})\nfixtures = [[['requester first', {'balances': {'ann': 300, 'bob': 900, 'cy': 400}, 'caps': {}, 'requester': 'ann', 'pts': 1001}, {'draws': [['ann', 300], ['bob', 701]]}], ['capped contributor', {'balances': {'ann': 100, 'bob': 5000, 'cy': 400}, 'caps': {'bob': 201}, 'requester': 'ann', 'pts': 600}, {'draws': [['ann', 100], ['cy', 400], ['bob', 100]]}], ['insufficient with caps', {'balances': {'ann': 100, 'bob': 5000}, 'caps': {'bob': 100}, 'requester': 'ann', 'pts': 301}, {'error': 'insufficient'}], ['requester cap ignored', {'balances': {'ann': 800, 'bob': 100}, 'caps': {'ann': 10}, 'requester': 'ann', 'pts': 701}, {'draws': [['ann', 701]]}], ['order by usable', {'balances': {'ann': 0, 'bob': 5000, 'cy': 600, 'dee': 500}, 'caps': {'bob': 50}, 'requester': 'ann', 'pts': 701}, {'draws': [['cy', 600], ['dee', 101]]}], ['ties by name', {'balances': {'zed': 0, 'amy': 300, 'max': 300}, 'caps': {}, 'requester': 'zed', 'pts': 401}, {'draws': [['amy', 300], ['max', 101]]}], ['requester covers', {'balances': {'ann': 5000, 'bob': 9000}, 'caps': {}, 'requester': 'ann', 'pts': 4001}, {'draws': [['ann', 4001]]}]], [['requester first', {'balances': {'ann': 300, 'bob': 900, 'cy': 400}, 'caps': {}, 'requester': 'ann', 'pts': 1002}, {'draws': [['ann', 300], ['bob', 702]]}], ['capped contributor', {'balances': {'ann': 100, 'bob': 5000, 'cy': 400}, 'caps': {'bob': 202}, 'requester': 'ann', 'pts': 600}, {'draws': [['ann', 100], ['cy', 400], ['bob', 100]]}], ['insufficient with caps', {'balances': {'ann': 100, 'bob': 5000}, 'caps': {'bob': 100}, 'requester': 'ann', 'pts': 302}, {'error': 'insufficient'}], ['requester cap ignored', {'balances': {'ann': 800, 'bob': 100}, 'caps': {'ann': 10}, 'requester': 'ann', 'pts': 702}, {'draws': [['ann', 702]]}], ['order by usable', {'balances': {'ann': 0, 'bob': 5000, 'cy': 600, 'dee': 500}, 'caps': {'bob': 50}, 'requester': 'ann', 'pts': 702}, {'draws': [['cy', 600], ['dee', 102]]}], ['ties by name', {'balances': {'zed': 0, 'amy': 300, 'max': 300}, 'caps': {}, 'requester': 'zed', 'pts': 402}, {'draws': [['amy', 300], ['max', 102]]}], ['requester covers', {'balances': {'ann': 5000, 'bob': 9000}, 'caps': {}, 'requester': 'ann', 'pts': 4002}, {'draws': [['ann', 4002]]}]], [['requester first', {'balances': {'ann': 300, 'bob': 900, 'cy': 400}, 'caps': {}, 'requester': 'ann', 'pts': 1003}, {'draws': [['ann', 300], ['bob', 703]]}], ['capped contributor', {'balances': {'ann': 100, 'bob': 5000, 'cy': 400}, 'caps': {'bob': 203}, 'requester': 'ann', 'pts': 600}, {'draws': [['ann', 100], ['cy', 400], ['bob', 100]]}], ['insufficient with caps', {'balances': {'ann': 100, 'bob': 5000}, 'caps': {'bob': 100}, 'requester': 'ann', 'pts': 303}, {'error': 'insufficient'}], ['requester cap ignored', {'balances': {'ann': 800, 'bob': 100}, 'caps': {'ann': 10}, 'requester': 'ann', 'pts': 703}, {'draws': [['ann', 703]]}], ['order by usable', {'balances': {'ann': 0, 'bob': 5000, 'cy': 600, 'dee': 500}, 'caps': {'bob': 50}, 'requester': 'ann', 'pts': 703}, {'draws': [['cy', 600], ['dee', 103]]}], ['ties by name', {'balances': {'zed': 0, 'amy': 300, 'max': 300}, 'caps': {}, 'requester': 'zed', 'pts': 403}, {'draws': [['amy', 300], ['max', 103]]}], ['requester covers', {'balances': {'ann': 5000, 'bob': 9000}, 'caps': {}, 'requester': 'ann', 'pts': 4003}, {'draws': [['ann', 4003]]}]], [['requester first', {'balances': {'ann': 300, 'bob': 900, 'cy': 400}, 'caps': {}, 'requester': 'ann', 'pts': 1004}, {'draws': [['ann', 300], ['bob', 704]]}], ['capped contributor', {'balances': {'ann': 100, 'bob': 5000, 'cy': 400}, 'caps': {'bob': 204}, 'requester': 'ann', 'pts': 600}, {'draws': [['ann', 100], ['cy', 400], ['bob', 100]]}], ['insufficient with caps', {'balances': {'ann': 100, 'bob': 5000}, 'caps': {'bob': 100}, 'requester': 'ann', 'pts': 304}, {'error': 'insufficient'}], ['requester cap ignored', {'balances': {'ann': 800, 'bob': 100}, 'caps': {'ann': 10}, 'requester': 'ann', 'pts': 704}, {'draws': [['ann', 704]]}], ['order by usable', {'balances': {'ann': 0, 'bob': 5000, 'cy': 600, 'dee': 500}, 'caps': {'bob': 50}, 'requester': 'ann', 'pts': 704}, {'draws': [['cy', 600], ['dee', 104]]}], ['ties by name', {'balances': {'zed': 0, 'amy': 300, 'max': 300}, 'caps': {}, 'requester': 'zed', 'pts': 404}, {'draws': [['amy', 300], ['max', 104]]}], ['requester covers', {'balances': {'ann': 5000, 'bob': 9000}, 'caps': {}, 'requester': 'ann', 'pts': 4004}, {'draws': [['ann', 4004]]}]], [['requester first', {'balances': {'ann': 300, 'bob': 900, 'cy': 400}, 'caps': {}, 'requester': 'ann', 'pts': 1005}, {'draws': [['ann', 300], ['bob', 705]]}], ['capped contributor', {'balances': {'ann': 100, 'bob': 5000, 'cy': 400}, 'caps': {'bob': 205}, 'requester': 'ann', 'pts': 600}, {'draws': [['ann', 100], ['cy', 400], ['bob', 100]]}], ['insufficient with caps', {'balances': {'ann': 100, 'bob': 5000}, 'caps': {'bob': 100}, 'requester': 'ann', 'pts': 305}, {'error': 'insufficient'}], ['requester cap ignored', {'balances': {'ann': 800, 'bob': 100}, 'caps': {'ann': 10}, 'requester': 'ann', 'pts': 705}, {'draws': [['ann', 705]]}], ['order by usable', {'balances': {'ann': 0, 'bob': 5000, 'cy': 600, 'dee': 500}, 'caps': {'bob': 50}, 'requester': 'ann', 'pts': 705}, {'draws': [['cy', 600], ['dee', 105]]}], ['ties by name', {'balances': {'zed': 0, 'amy': 300, 'max': 300}, 'caps': {}, 'requester': 'zed', 'pts': 405}, {'draws': [['amy', 300], ['max', 105]]}], ['requester covers', {'balances': {'ann': 5000, 'bob': 9000}, 'caps': {}, 'requester': 'ann', 'pts': 4005}, {'draws': [['ann', 4005]]}]]]\nfor label, args, expected in fixtures[N-1]:\n    check(label, solve(args), expected)\nprint(json.dumps({\"observations\": observations, \"passed\": all(x[\"passed\"] for x in observations)}, ensure_ascii=False))\nraise SystemExit(0 if all(x[\"passed\"] for x in observations) else 1)\n"},"broken":{"sha256":"4604f47b19b6a7c5d786bb1ab91f39f6aae6538d45b7b0a9afb418ece2512224","source":"\"\"\"Failure Map reference implementation. Python standard library only.\"\"\"\nimport json\n\nN = 1\nobservations = []\ndef solve(x):\n    bal = x['balances']\n    caps = x['caps']\n    rq = x['requester']\n    usable = lambda m: bal[m] if m == rq else min(bal[m], caps.get(m, bal[m]))\n    if x['pts'] > sum(usable(m) for m in bal):\n        return {'error': 'insufficient'}\n    others = sorted([m for m in bal if m != rq], key=lambda m: (-usable(m), m))\n    need = x['pts']\n    draws = []\n    for m in sorted(bal, key=lambda m: (-usable(m), m)):\n        t = min(need, usable(m))\n        if t > 0:\n            draws.append([m, t])\n            need -= t\n    return {'draws': draws}\ndef check(label, actual, expected):\n    observations.append({\"check\": label, \"actual\": actual, \"expected\": expected, \"passed\": actual == expected})\nfixtures = [[['requester first', {'balances': {'ann': 300, 'bob': 900, 'cy': 400}, 'caps': {}, 'requester': 'ann', 'pts': 1001}, {'draws': [['ann', 300], ['bob', 701]]}], ['capped contributor', {'balances': {'ann': 100, 'bob': 5000, 'cy': 400}, 'caps': {'bob': 201}, 'requester': 'ann', 'pts': 600}, {'draws': [['ann', 100], ['cy', 400], ['bob', 100]]}], ['insufficient with caps', {'balances': {'ann': 100, 'bob': 5000}, 'caps': {'bob': 100}, 'requester': 'ann', 'pts': 301}, {'error': 'insufficient'}], ['requester cap ignored', {'balances': {'ann': 800, 'bob': 100}, 'caps': {'ann': 10}, 'requester': 'ann', 'pts': 701}, {'draws': [['ann', 701]]}], ['order by usable', {'balances': {'ann': 0, 'bob': 5000, 'cy': 600, 'dee': 500}, 'caps': {'bob': 50}, 'requester': 'ann', 'pts': 701}, {'draws': [['cy', 600], ['dee', 101]]}], ['ties by name', {'balances': {'zed': 0, 'amy': 300, 'max': 300}, 'caps': {}, 'requester': 'zed', 'pts': 401}, {'draws': [['amy', 300], ['max', 101]]}], ['requester covers', {'balances': {'ann': 5000, 'bob': 9000}, 'caps': {}, 'requester': 'ann', 'pts': 4001}, {'draws': [['ann', 4001]]}]], [['requester first', {'balances': {'ann': 300, 'bob': 900, 'cy': 400}, 'caps': {}, 'requester': 'ann', 'pts': 1002}, {'draws': [['ann', 300], ['bob', 702]]}], ['capped contributor', {'balances': {'ann': 100, 'bob': 5000, 'cy': 400}, 'caps': {'bob': 202}, 'requester': 'ann', 'pts': 600}, {'draws': [['ann', 100], ['cy', 400], ['bob', 100]]}], ['insufficient with caps', {'balances': {'ann': 100, 'bob': 5000}, 'caps': {'bob': 100}, 'requester': 'ann', 'pts': 302}, {'error': 'insufficient'}], ['requester cap ignored', {'balances': {'ann': 800, 'bob': 100}, 'caps': {'ann': 10}, 'requester': 'ann', 'pts': 702}, {'draws': [['ann', 702]]}], ['order by usable', {'balances': {'ann': 0, 'bob': 5000, 'cy': 600, 'dee': 500}, 'caps': {'bob': 50}, 'requester': 'ann', 'pts': 702}, {'draws': [['cy', 600], ['dee', 102]]}], ['ties by name', {'balances': {'zed': 0, 'amy': 300, 'max': 300}, 'caps': {}, 'requester': 'zed', 'pts': 402}, {'draws': [['amy', 300], ['max', 102]]}], ['requester covers', {'balances': {'ann': 5000, 'bob': 9000}, 'caps': {}, 'requester': 'ann', 'pts': 4002}, {'draws': [['ann', 4002]]}]], [['requester first', {'balances': {'ann': 300, 'bob': 900, 'cy': 400}, 'caps': {}, 'requester': 'ann', 'pts': 1003}, {'draws': [['ann', 300], ['bob', 703]]}], ['capped contributor', {'balances': {'ann': 100, 'bob': 5000, 'cy': 400}, 'caps': {'bob': 203}, 'requester': 'ann', 'pts': 600}, {'draws': [['ann', 100], ['cy', 400], ['bob', 100]]}], ['insufficient with caps', {'balances': {'ann': 100, 'bob': 5000}, 'caps': {'bob': 100}, 'requester': 'ann', 'pts': 303}, {'error': 'insufficient'}], ['requester cap ignored', {'balances': {'ann': 800, 'bob': 100}, 'caps': {'ann': 10}, 'requester': 'ann', 'pts': 703}, {'draws': [['ann', 703]]}], ['order by usable', {'balances': {'ann': 0, 'bob': 5000, 'cy': 600, 'dee': 500}, 'caps': {'bob': 50}, 'requester': 'ann', 'pts': 703}, {'draws': [['cy', 600], ['dee', 103]]}], ['ties by name', {'balances': {'zed': 0, 'amy': 300, 'max': 300}, 'caps': {}, 'requester': 'zed', 'pts': 403}, {'draws': [['amy', 300], ['max', 103]]}], ['requester covers', {'balances': {'ann': 5000, 'bob': 9000}, 'caps': {}, 'requester': 'ann', 'pts': 4003}, {'draws': [['ann', 4003]]}]], [['requester first', {'balances': {'ann': 300, 'bob': 900, 'cy': 400}, 'caps': {}, 'requester': 'ann', 'pts': 1004}, {'draws': [['ann', 300], ['bob', 704]]}], ['capped contributor', {'balances': {'ann': 100, 'bob': 5000, 'cy': 400}, 'caps': {'bob': 204}, 'requester': 'ann', 'pts': 600}, {'draws': [['ann', 100], ['cy', 400], ['bob', 100]]}], ['insufficient with caps', {'balances': {'ann': 100, 'bob': 5000}, 'caps': {'bob': 100}, 'requester': 'ann', 'pts': 304}, {'error': 'insufficient'}], ['requester cap ignored', {'balances': {'ann': 800, 'bob': 100}, 'caps': {'ann': 10}, 'requester': 'ann', 'pts': 704}, {'draws': [['ann', 704]]}], ['order by usable', {'balances': {'ann': 0, 'bob': 5000, 'cy': 600, 'dee': 500}, 'caps': {'bob': 50}, 'requester': 'ann', 'pts': 704}, {'draws': [['cy', 600], ['dee', 104]]}], ['ties by name', {'balances': {'zed': 0, 'amy': 300, 'max': 300}, 'caps': {}, 'requester': 'zed', 'pts': 404}, {'draws': [['amy', 300], ['max', 104]]}], ['requester covers', {'balances': {'ann': 5000, 'bob': 9000}, 'caps': {}, 'requester': 'ann', 'pts': 4004}, {'draws': [['ann', 4004]]}]], [['requester first', {'balances': {'ann': 300, 'bob': 900, 'cy': 400}, 'caps': {}, 'requester': 'ann', 'pts': 1005}, {'draws': [['ann', 300], ['bob', 705]]}], ['capped contributor', {'balances': {'ann': 100, 'bob': 5000, 'cy': 400}, 'caps': {'bob': 205}, 'requester': 'ann', 'pts': 600}, {'draws': [['ann', 100], ['cy', 400], ['bob', 100]]}], ['insufficient with caps', {'balances': {'ann': 100, 'bob': 5000}, 'caps': {'bob': 100}, 'requester': 'ann', 'pts': 305}, {'error': 'insufficient'}], ['requester cap ignored', {'balances': {'ann': 800, 'bob': 100}, 'caps': {'ann': 10}, 'requester': 'ann', 'pts': 705}, {'draws': [['ann', 705]]}], ['order by usable', {'balances': {'ann': 0, 'bob': 5000, 'cy': 600, 'dee': 500}, 'caps': {'bob': 50}, 'requester': 'ann', 'pts': 705}, {'draws': [['cy', 600], ['dee', 105]]}], ['ties by name', {'balances': {'zed': 0, 'amy': 300, 'max': 300}, 'caps': {}, 'requester': 'zed', 'pts': 405}, {'draws': [['amy', 300], ['max', 105]]}], ['requester covers', {'balances': {'ann': 5000, 'bob': 9000}, 'caps': {}, 'requester': 'ann', 'pts': 4005}, {'draws': [['ann', 4005]]}]]]\nfor label, args, expected in fixtures[N-1]:\n    check(label, solve(args), expected)\nprint(json.dumps({\"observations\": observations, \"passed\": all(x[\"passed\"] for x in observations)}, ensure_ascii=False))\nraise SystemExit(0 if all(x[\"passed\"] for x in observations) else 1)\n"},"fixed":{"sha256":"cf9deac331212d266e4df4d1561231e8064f02d59779379773be658b7ef35cb8","source":"\"\"\"Failure Map reference implementation. Python standard library only.\"\"\"\nimport json\n\nN = 1\nobservations = []\ndef solve(x):\n    bal = x['balances']\n    caps = x['caps']\n    rq = x['requester']\n    usable = lambda m: bal[m] if m == rq else min(bal[m], caps.get(m, bal[m]))\n    if x['pts'] > sum(usable(m) for m in bal):\n        return {'error': 'insufficient'}\n    others = sorted([m for m in bal if m != rq], key=lambda m: (-usable(m), m))\n    need = x['pts']\n    draws = []\n    for m in [rq] + others:\n        t = min(need, usable(m))\n        if t > 0:\n            draws.append([m, t])\n            need -= t\n    return {'draws': draws}\ndef check(label, actual, expected):\n    observations.append({\"check\": label, \"actual\": actual, \"expected\": expected, \"passed\": actual == expected})\nfixtures = [[['requester first', {'balances': {'ann': 300, 'bob': 900, 'cy': 400}, 'caps': {}, 'requester': 'ann', 'pts': 1001}, {'draws': [['ann', 300], ['bob', 701]]}], ['capped contributor', {'balances': {'ann': 100, 'bob': 5000, 'cy': 400}, 'caps': {'bob': 201}, 'requester': 'ann', 'pts': 600}, {'draws': [['ann', 100], ['cy', 400], ['bob', 100]]}], ['insufficient with caps', {'balances': {'ann': 100, 'bob': 5000}, 'caps': {'bob': 100}, 'requester': 'ann', 'pts': 301}, {'error': 'insufficient'}], ['requester cap ignored', {'balances': {'ann': 800, 'bob': 100}, 'caps': {'ann': 10}, 'requester': 'ann', 'pts': 701}, {'draws': [['ann', 701]]}], ['order by usable', {'balances': {'ann': 0, 'bob': 5000, 'cy': 600, 'dee': 500}, 'caps': {'bob': 50}, 'requester': 'ann', 'pts': 701}, {'draws': [['cy', 600], ['dee', 101]]}], ['ties by name', {'balances': {'zed': 0, 'amy': 300, 'max': 300}, 'caps': {}, 'requester': 'zed', 'pts': 401}, {'draws': [['amy', 300], ['max', 101]]}], ['requester covers', {'balances': {'ann': 5000, 'bob': 9000}, 'caps': {}, 'requester': 'ann', 'pts': 4001}, {'draws': [['ann', 4001]]}]], [['requester first', {'balances': {'ann': 300, 'bob': 900, 'cy': 400}, 'caps': {}, 'requester': 'ann', 'pts': 1002}, {'draws': [['ann', 300], ['bob', 702]]}], ['capped contributor', {'balances': {'ann': 100, 'bob': 5000, 'cy': 400}, 'caps': {'bob': 202}, 'requester': 'ann', 'pts': 600}, {'draws': [['ann', 100], ['cy', 400], ['bob', 100]]}], ['insufficient with caps', {'balances': {'ann': 100, 'bob': 5000}, 'caps': {'bob': 100}, 'requester': 'ann', 'pts': 302}, {'error': 'insufficient'}], ['requester cap ignored', {'balances': {'ann': 800, 'bob': 100}, 'caps': {'ann': 10}, 'requester': 'ann', 'pts': 702}, {'draws': [['ann', 702]]}], ['order by usable', {'balances': {'ann': 0, 'bob': 5000, 'cy': 600, 'dee': 500}, 'caps': {'bob': 50}, 'requester': 'ann', 'pts': 702}, {'draws': [['cy', 600], ['dee', 102]]}], ['ties by name', {'balances': {'zed': 0, 'amy': 300, 'max': 300}, 'caps': {}, 'requester': 'zed', 'pts': 402}, {'draws': [['amy', 300], ['max', 102]]}], ['requester covers', {'balances': {'ann': 5000, 'bob': 9000}, 'caps': {}, 'requester': 'ann', 'pts': 4002}, {'draws': [['ann', 4002]]}]], [['requester first', {'balances': {'ann': 300, 'bob': 900, 'cy': 400}, 'caps': {}, 'requester': 'ann', 'pts': 1003}, {'draws': [['ann', 300], ['bob', 703]]}], ['capped contributor', {'balances': {'ann': 100, 'bob': 5000, 'cy': 400}, 'caps': {'bob': 203}, 'requester': 'ann', 'pts': 600}, {'draws': [['ann', 100], ['cy', 400], ['bob', 100]]}], ['insufficient with caps', {'balances': {'ann': 100, 'bob': 5000}, 'caps': {'bob': 100}, 'requester': 'ann', 'pts': 303}, {'error': 'insufficient'}], ['requester cap ignored', {'balances': {'ann': 800, 'bob': 100}, 'caps': {'ann': 10}, 'requester': 'ann', 'pts': 703}, {'draws': [['ann', 703]]}], ['order by usable', {'balances': {'ann': 0, 'bob': 5000, 'cy': 600, 'dee': 500}, 'caps': {'bob': 50}, 'requester': 'ann', 'pts': 703}, {'draws': [['cy', 600], ['dee', 103]]}], ['ties by name', {'balances': {'zed': 0, 'amy': 300, 'max': 300}, 'caps': {}, 'requester': 'zed', 'pts': 403}, {'draws': [['amy', 300], ['max', 103]]}], ['requester covers', {'balances': {'ann': 5000, 'bob': 9000}, 'caps': {}, 'requester': 'ann', 'pts': 4003}, {'draws': [['ann', 4003]]}]], [['requester first', {'balances': {'ann': 300, 'bob': 900, 'cy': 400}, 'caps': {}, 'requester': 'ann', 'pts': 1004}, {'draws': [['ann', 300], ['bob', 704]]}], ['capped contributor', {'balances': {'ann': 100, 'bob': 5000, 'cy': 400}, 'caps': {'bob': 204}, 'requester': 'ann', 'pts': 600}, {'draws': [['ann', 100], ['cy', 400], ['bob', 100]]}], ['insufficient with caps', {'balances': {'ann': 100, 'bob': 5000}, 'caps': {'bob': 100}, 'requester': 'ann', 'pts': 304}, {'error': 'insufficient'}], ['requester cap ignored', {'balances': {'ann': 800, 'bob': 100}, 'caps': {'ann': 10}, 'requester': 'ann', 'pts': 704}, {'draws': [['ann', 704]]}], ['order by usable', {'balances': {'ann': 0, 'bob': 5000, 'cy': 600, 'dee': 500}, 'caps': {'bob': 50}, 'requester': 'ann', 'pts': 704}, {'draws': [['cy', 600], ['dee', 104]]}], ['ties by name', {'balances': {'zed': 0, 'amy': 300, 'max': 300}, 'caps': {}, 'requester': 'zed', 'pts': 404}, {'draws': [['amy', 300], ['max', 104]]}], ['requester covers', {'balances': {'ann': 5000, 'bob': 9000}, 'caps': {}, 'requester': 'ann', 'pts': 4004}, {'draws': [['ann', 4004]]}]], [['requester first', {'balances': {'ann': 300, 'bob': 900, 'cy': 400}, 'caps': {}, 'requester': 'ann', 'pts': 1005}, {'draws': [['ann', 300], ['bob', 705]]}], ['capped contributor', {'balances': {'ann': 100, 'bob': 5000, 'cy': 400}, 'caps': {'bob': 205}, 'requester': 'ann', 'pts': 600}, {'draws': [['ann', 100], ['cy', 400], ['bob', 100]]}], ['insufficient with caps', {'balances': {'ann': 100, 'bob': 5000}, 'caps': {'bob': 100}, 'requester': 'ann', 'pts': 305}, {'error': 'insufficient'}], ['requester cap ignored', {'balances': {'ann': 800, 'bob': 100}, 'caps': {'ann': 10}, 'requester': 'ann', 'pts': 705}, {'draws': [['ann', 705]]}], ['order by usable', {'balances': {'ann': 0, 'bob': 5000, 'cy': 600, 'dee': 500}, 'caps': {'bob': 50}, 'requester': 'ann', 'pts': 705}, {'draws': [['cy', 600], ['dee', 105]]}], ['ties by name', {'balances': {'zed': 0, 'amy': 300, 'max': 300}, 'caps': {}, 'requester': 'zed', 'pts': 405}, {'draws': [['amy', 300], ['max', 105]]}], ['requester covers', {'balances': {'ann': 5000, 'bob': 9000}, 'caps': {}, 'requester': 'ann', 'pts': 4005}, {'draws': [['ann', 4005]]}]]]\nfor label, args, expected in fixtures[N-1]:\n    check(label, solve(args), expected)\nprint(json.dumps({\"observations\": observations, \"passed\": all(x[\"passed\"] for x in observations)}, ensure_ascii=False))\nraise SystemExit(0 if all(x[\"passed\"] for x in observations) else 1)\n"}},"limitations":"Stipulated bounded loyalty-program model with explicit toy rules; not any real program terms. 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.","method":"Deterministic executable model with adversarial boundary fixtures.","provenance":{"created_by":"Failure Map","dependencies":"Python standard library","family":"w2-loyalty-points-ledgers-household-pool-requester-priority","generated_at":"2026-09-29T14:46:49.198215+00:00","license":"CC0-1.0","python":"3.12.14","seed":1,"split":"open-access"},"relevance":"Member point balances, statements and the program liability depend on this ledger rule.","repair":"Draw from the requester first, then the other members.","root_cause":"All members, including the requester, are ordered by usable balance.","sha256":"ad12d516dba0f815f39e59010bbe54826ab1f30d3a4528c6b3fa4cb31f2c385b","title":"Household pool redemption draw: requester priority · case 01","variant":1,"variant_policy":"Five numbered records share a model and may reuse boundary fixtures.","verification":{"attempt":{"elapsed_ms":40.863,"exit_code":1,"observations":[{"actual":{"draws":[["bob",900],["cy",101]]},"check":"requester first","expected":{"draws":[["ann",300],["bob",701]]},"passed":false},{"actual":{"draws":[["cy",400],["bob",200]]},"check":"capped contributor","expected":{"draws":[["ann",100],["cy",400],["bob",100]]},"passed":false},{"actual":{"error":"insufficient"},"check":"insufficient with caps","expected":{"error":"insufficient"},"passed":true},{"actual":{"draws":[["bob",100],["ann",601]]},"check":"requester cap ignored","expected":{"draws":[["ann",701]]},"passed":false},{"actual":{"draws":[["cy",600],["dee",101]]},"check":"order by usable","expected":{"draws":[["cy",600],["dee",101]]},"passed":true},{"actual":{"draws":[["amy",300],["max",101]]},"check":"ties by name","expected":{"draws":[["amy",300],["max",101]]},"passed":true},{"actual":{"draws":[["bob",4001]]},"check":"requester covers","expected":{"draws":[["ann",4001]]},"passed":false}],"passed":false,"stderr":"","stdout":"{\"observations\": [{\"check\": \"requester first\", \"actual\": {\"draws\": [[\"bob\", 900], [\"cy\", 101]]}, \"expected\": {\"draws\": [[\"ann\", 300], [\"bob\", 701]]}, \"passed\": false}, {\"check\": \"capped contributor\", \"actual\": {\"draws\": [[\"cy\", 400], [\"bob\", 200]]}, \"expected\": {\"draws\": [[\"ann\", 100], [\"cy\", 400], [\"bob\", 100]]}, \"passed\": false}, {\"check\": \"insufficient with caps\", \"actual\": {\"error\": \"insufficient\"}, \"expected\": {\"error\": \"insufficient\"}, \"passed\": true}, {\"check\": \"requester cap ignored\", \"actual\": {\"draws\": [[\"bob\", 100], [\"ann\", 601]]}, \"expected\": {\"draws\": [[\"ann\", 701]]}, \"passed\": false}, {\"check\": \"order by usable\", \"actual\": {\"draws\": [[\"cy\", 600], [\"dee\", 101]]}, \"expected\": {\"draws\": [[\"cy\", 600], [\"dee\", 101]]}, \"passed\": true}, {\"check\": \"ties by name\", \"actual\": {\"draws\": [[\"amy\", 300], [\"max\", 101]]}, \"expected\": {\"draws\": [[\"amy\", 300], [\"max\", 101]]}, \"passed\": true}, {\"check\": \"requester covers\", \"actual\": {\"draws\": [[\"bob\", 4001]]}, \"expected\": {\"draws\": [[\"ann\", 4001]]}, \"passed\": false}], \"passed\": false}\n"},"broken":{"elapsed_ms":40.796,"exit_code":1,"observations":[{"actual":{"draws":[["bob",900],["cy",101]]},"check":"requester first","expected":{"draws":[["ann",300],["bob",701]]},"passed":false},{"actual":{"draws":[["cy",400],["bob",200]]},"check":"capped contributor","expected":{"draws":[["ann",100],["cy",400],["bob",100]]},"passed":false},{"actual":{"error":"insufficient"},"check":"insufficient with caps","expected":{"error":"insufficient"},"passed":true},{"actual":{"draws":[["ann",701]]},"check":"requester cap ignored","expected":{"draws":[["ann",701]]},"passed":true},{"actual":{"draws":[["cy",600],["dee",101]]},"check":"order by usable","expected":{"draws":[["cy",600],["dee",101]]},"passed":true},{"actual":{"draws":[["amy",300],["max",101]]},"check":"ties by name","expected":{"draws":[["amy",300],["max",101]]},"passed":true},{"actual":{"draws":[["bob",4001]]},"check":"requester covers","expected":{"draws":[["ann",4001]]},"passed":false}],"passed":false,"stderr":"","stdout":"{\"observations\": [{\"check\": \"requester first\", \"actual\": {\"draws\": [[\"bob\", 900], [\"cy\", 101]]}, \"expected\": {\"draws\": [[\"ann\", 300], [\"bob\", 701]]}, \"passed\": false}, {\"check\": \"capped contributor\", \"actual\": {\"draws\": [[\"cy\", 400], [\"bob\", 200]]}, \"expected\": {\"draws\": [[\"ann\", 100], [\"cy\", 400], [\"bob\", 100]]}, \"passed\": false}, {\"check\": \"insufficient with caps\", \"actual\": {\"error\": \"insufficient\"}, \"expected\": {\"error\": \"insufficient\"}, \"passed\": true}, {\"check\": \"requester cap ignored\", \"actual\": {\"draws\": [[\"ann\", 701]]}, \"expected\": {\"draws\": [[\"ann\", 701]]}, \"passed\": true}, {\"check\": \"order by usable\", \"actual\": {\"draws\": [[\"cy\", 600], [\"dee\", 101]]}, \"expected\": {\"draws\": [[\"cy\", 600], [\"dee\", 101]]}, \"passed\": true}, {\"check\": \"ties by name\", \"actual\": {\"draws\": [[\"amy\", 300], [\"max\", 101]]}, \"expected\": {\"draws\": [[\"amy\", 300], [\"max\", 101]]}, \"passed\": true}, {\"check\": \"requester covers\", \"actual\": {\"draws\": [[\"bob\", 4001]]}, \"expected\": {\"draws\": [[\"ann\", 4001]]}, \"passed\": false}], \"passed\": false}\n"},"fixed":{"elapsed_ms":40.483,"exit_code":0,"observations":[{"actual":{"draws":[["ann",300],["bob",701]]},"check":"requester first","expected":{"draws":[["ann",300],["bob",701]]},"passed":true},{"actual":{"draws":[["ann",100],["cy",400],["bob",100]]},"check":"capped contributor","expected":{"draws":[["ann",100],["cy",400],["bob",100]]},"passed":true},{"actual":{"error":"insufficient"},"check":"insufficient with caps","expected":{"error":"insufficient"},"passed":true},{"actual":{"draws":[["ann",701]]},"check":"requester cap ignored","expected":{"draws":[["ann",701]]},"passed":true},{"actual":{"draws":[["cy",600],["dee",101]]},"check":"order by usable","expected":{"draws":[["cy",600],["dee",101]]},"passed":true},{"actual":{"draws":[["amy",300],["max",101]]},"check":"ties by name","expected":{"draws":[["amy",300],["max",101]]},"passed":true},{"actual":{"draws":[["ann",4001]]},"check":"requester covers","expected":{"draws":[["ann",4001]]},"passed":true}],"passed":true,"stderr":"","stdout":"{\"observations\": [{\"check\": \"requester first\", \"actual\": {\"draws\": [[\"ann\", 300], [\"bob\", 701]]}, \"expected\": {\"draws\": [[\"ann\", 300], [\"bob\", 701]]}, \"passed\": true}, {\"check\": \"capped contributor\", \"actual\": {\"draws\": [[\"ann\", 100], [\"cy\", 400], [\"bob\", 100]]}, \"expected\": {\"draws\": [[\"ann\", 100], [\"cy\", 400], [\"bob\", 100]]}, \"passed\": true}, {\"check\": \"insufficient with caps\", \"actual\": {\"error\": \"insufficient\"}, \"expected\": {\"error\": \"insufficient\"}, \"passed\": true}, {\"check\": \"requester cap ignored\", \"actual\": {\"draws\": [[\"ann\", 701]]}, \"expected\": {\"draws\": [[\"ann\", 701]]}, \"passed\": true}, {\"check\": \"order by usable\", \"actual\": {\"draws\": [[\"cy\", 600], [\"dee\", 101]]}, \"expected\": {\"draws\": [[\"cy\", 600], [\"dee\", 101]]}, \"passed\": true}, {\"check\": \"ties by name\", \"actual\": {\"draws\": [[\"amy\", 300], [\"max\", 101]]}, \"expected\": {\"draws\": [[\"amy\", 300], [\"max\", 101]]}, \"passed\": true}, {\"check\": \"requester covers\", \"actual\": {\"draws\": [[\"ann\", 4001]]}, \"expected\": {\"draws\": [[\"ann\", 4001]]}, \"passed\": true}], \"passed\": true}\n"}},"verified":true,"visibility":"public"}