{"abstract":"A patient last seen well yesterday evening gets a negative elapsed time and a thrombolysis window.","category":"Clinical triage scoring","checks":8,"contract":"Input {face 0-1, arm 0-2, grip 0-2, lkw \"HH:MM\", now \"HH:MM\", lkw_yesterday}. Score = face+arm+grip; large-vessel suspicion when score >= 4. elapsed = now - lkw in minutes (+1440 if last known well was yesterday). Pathway: elapsed <= 270 THROMBOLYSIS_WINDOW; else elapsed <= 1440 with suspicion THROMBECTOMY_EVAL; else OUTSIDE_WINDOW. Destination COMPREHENSIVE for any large-vessel suspicion, else NEAREST. Return {score, lvo, elapsed_min, pathway, destination}.","contract_signature":"x","evaluation_group":"w2-triage-stroke-routing","failed_approach":"Taking the absolute clock difference measures the wrong side of midnight.","family":"w2-triage-stroke-routing-overnight-last-known-well","id":"FA-64616","implementations":{"attempt":{"sha256":"a699892fe30e6d894bccc4acb93b86a045f9f9adbd9798c9daea52a9a7f9a8cb","source":"\"\"\"Failure Map reference implementation. Python standard library only.\"\"\"\nimport json\n\nN = 1\nobservations = []\ndef solve(x):\n    s = x['face'] + x['arm'] + x['grip']\n    lvo = s >= 4\n    def mins(t):\n        h, m = map(int, t.split(':'))\n        return h * 60 + m\n    elapsed = abs(mins(x['now']) - mins(x['lkw']))\n    if elapsed <= 270:\n        path = 'THROMBOLYSIS_WINDOW'\n    elif elapsed <= 1440 and lvo:\n        path = 'THROMBECTOMY_EVAL'\n    else:\n        path = 'OUTSIDE_WINDOW'\n    dest = 'COMPREHENSIVE' if lvo else 'NEAREST'\n    return {'score': s, 'lvo': lvo, 'elapsed_min': elapsed, 'pathway': path, 'destination': dest}\ndef check(label, actual, expected):\n    observations.append({\"check\": label, \"actual\": actual, \"expected\": expected, \"passed\": actual == expected})\nfixtures = [[('mild deficit early',\n   {'face': 1, 'arm': 1, 'grip': 0, 'lkw': '10:00', 'now': '10:10', 'lkw_yesterday': False},\n   {'score': 2, 'lvo': False, 'elapsed_min': 10, 'pathway': 'THROMBOLYSIS_WINDOW', 'destination': 'NEAREST'}),\n  ('score exactly 4 without facial droop',\n   {'face': 0, 'arm': 2, 'grip': 2, 'lkw': '10:00', 'now': '12:00', 'lkw_yesterday': False},\n   {'score': 4,\n    'lvo': True,\n    'elapsed_min': 120,\n    'pathway': 'THROMBOLYSIS_WINDOW',\n    'destination': 'COMPREHENSIVE'}),\n  ('last known well yesterday evening',\n   {'face': 1, 'arm': 2, 'grip': 2, 'lkw': '22:00', 'now': '01:00', 'lkw_yesterday': True},\n   {'score': 5,\n    'lvo': True,\n    'elapsed_min': 180,\n    'pathway': 'THROMBOLYSIS_WINDOW',\n    'destination': 'COMPREHENSIVE'}),\n  ('exactly 4.5 hours',\n   {'face': 1, 'arm': 1, 'grip': 1, 'lkw': '01:00', 'now': '05:30', 'lkw_yesterday': False},\n   {'score': 3,\n    'lvo': False,\n    'elapsed_min': 270,\n    'pathway': 'THROMBOLYSIS_WINDOW',\n    'destination': 'NEAREST'}),\n  ('4 hours 50 minutes',\n   {'face': 0, 'arm': 1, 'grip': 1, 'lkw': '08:00', 'now': '12:46', 'lkw_yesterday': False},\n   {'score': 2, 'lvo': False, 'elapsed_min': 286, 'pathway': 'OUTSIDE_WINDOW', 'destination': 'NEAREST'}),\n  ('large vessel at 20 hours',\n   {'face': 1, 'arm': 2, 'grip': 2, 'lkw': '14:00', 'now': '10:00', 'lkw_yesterday': True},\n   {'score': 5,\n    'lvo': True,\n    'elapsed_min': 1200,\n    'pathway': 'THROMBECTOMY_EVAL',\n    'destination': 'COMPREHENSIVE'}),\n  ('large vessel beyond 24 hours',\n   {'face': 1, 'arm': 2, 'grip': 2, 'lkw': '08:00', 'now': '08:10', 'lkw_yesterday': True},\n   {'score': 5,\n    'lvo': True,\n    'elapsed_min': 1450,\n    'pathway': 'OUTSIDE_WINDOW',\n    'destination': 'COMPREHENSIVE'}),\n  ('large vessel exactly 24 hours',\n   {'face': 1, 'arm': 2, 'grip': 1, 'lkw': '01:00', 'now': '01:00', 'lkw_yesterday': True},\n   {'score': 4,\n    'lvo': True,\n    'elapsed_min': 1440,\n    'pathway': 'THROMBECTOMY_EVAL',\n    'destination': 'COMPREHENSIVE'})],\n [('mild deficit early',\n   {'face': 1, 'arm': 1, 'grip': 0, 'lkw': '10:00', 'now': '10:20', 'lkw_yesterday': False},\n   {'score': 2, 'lvo': False, 'elapsed_min': 20, 'pathway': 'THROMBOLYSIS_WINDOW', 'destination': 'NEAREST'}),\n  ('score exactly 4 without facial droop',\n   {'face': 0, 'arm': 2, 'grip': 2, 'lkw': '10:00', 'now': '12:00', 'lkw_yesterday': False},\n   {'score': 4,\n    'lvo': True,\n    'elapsed_min': 120,\n    'pathway': 'THROMBOLYSIS_WINDOW',\n    'destination': 'COMPREHENSIVE'}),\n  ('last known well yesterday evening',\n   {'face': 1, 'arm': 2, 'grip': 2, 'lkw': '22:00', 'now': '02:00', 'lkw_yesterday': True},\n   {'score': 5,\n    'lvo': True,\n    'elapsed_min': 240,\n    'pathway': 'THROMBOLYSIS_WINDOW',\n    'destination': 'COMPREHENSIVE'}),\n  ('exactly 4.5 hours',\n   {'face': 1, 'arm': 1, 'grip': 1, 'lkw': '02:00', 'now': '06:30', 'lkw_yesterday': False},\n   {'score': 3,\n    'lvo': False,\n    'elapsed_min': 270,\n    'pathway': 'THROMBOLYSIS_WINDOW',\n    'destination': 'NEAREST'}),\n  ('4 hours 50 minutes',\n   {'face': 0, 'arm': 1, 'grip': 1, 'lkw': '08:00', 'now': '12:47', 'lkw_yesterday': False},\n   {'score': 2, 'lvo': False, 'elapsed_min': 287, 'pathway': 'OUTSIDE_WINDOW', 'destination': 'NEAREST'}),\n  ('large vessel at 20 hours',\n   {'face': 1, 'arm': 2, 'grip': 1, 'lkw': '14:00', 'now': '10:00', 'lkw_yesterday': True},\n   {'score': 4,\n    'lvo': True,\n    'elapsed_min': 1200,\n    'pathway': 'THROMBECTOMY_EVAL',\n    'destination': 'COMPREHENSIVE'}),\n  ('large vessel beyond 24 hours',\n   {'face': 1, 'arm': 2, 'grip': 2, 'lkw': '08:00', 'now': '08:20', 'lkw_yesterday': True},\n   {'score': 5,\n    'lvo': True,\n    'elapsed_min': 1460,\n    'pathway': 'OUTSIDE_WINDOW',\n    'destination': 'COMPREHENSIVE'}),\n  ('large vessel exactly 24 hours',\n   {'face': 1, 'arm': 2, 'grip': 1, 'lkw': '02:00', 'now': '02:00', 'lkw_yesterday': True},\n   {'score': 4,\n    'lvo': True,\n    'elapsed_min': 1440,\n    'pathway': 'THROMBECTOMY_EVAL',\n    'destination': 'COMPREHENSIVE'})],\n [('mild deficit early',\n   {'face': 1, 'arm': 1, 'grip': 0, 'lkw': '10:00', 'now': '10:30', 'lkw_yesterday': False},\n   {'score': 2, 'lvo': False, 'elapsed_min': 30, 'pathway': 'THROMBOLYSIS_WINDOW', 'destination': 'NEAREST'}),\n  ('score exactly 4 without facial droop',\n   {'face': 0, 'arm': 2, 'grip': 2, 'lkw': '10:00', 'now': '12:00', 'lkw_yesterday': False},\n   {'score': 4,\n    'lvo': True,\n    'elapsed_min': 120,\n    'pathway': 'THROMBOLYSIS_WINDOW',\n    'destination': 'COMPREHENSIVE'}),\n  ('last known well yesterday evening',\n   {'face': 1, 'arm': 2, 'grip': 2, 'lkw': '22:00', 'now': '03:00', 'lkw_yesterday': True},\n   {'score': 5,\n    'lvo': True,\n    'elapsed_min': 300,\n    'pathway': 'THROMBECTOMY_EVAL',\n    'destination': 'COMPREHENSIVE'}),\n  ('exactly 4.5 hours',\n   {'face': 1, 'arm': 1, 'grip': 1, 'lkw': '03:00', 'now': '07:30', 'lkw_yesterday': False},\n   {'score': 3,\n    'lvo': False,\n    'elapsed_min': 270,\n    'pathway': 'THROMBOLYSIS_WINDOW',\n    'destination': 'NEAREST'}),\n  ('4 hours 50 minutes',\n   {'face': 0, 'arm': 1, 'grip': 1, 'lkw': '08:00', 'now': '12:48', 'lkw_yesterday': False},\n   {'score': 2, 'lvo': False, 'elapsed_min': 288, 'pathway': 'OUTSIDE_WINDOW', 'destination': 'NEAREST'}),\n  ('large vessel at 20 hours',\n   {'face': 1, 'arm': 2, 'grip': 2, 'lkw': '14:00', 'now': '10:00', 'lkw_yesterday': True},\n   {'score': 5,\n    'lvo': True,\n    'elapsed_min': 1200,\n    'pathway': 'THROMBECTOMY_EVAL',\n    'destination': 'COMPREHENSIVE'}),\n  ('large vessel beyond 24 hours',\n   {'face': 1, 'arm': 2, 'grip': 2, 'lkw': '08:00', 'now': '08:30', 'lkw_yesterday': True},\n   {'score': 5,\n    'lvo': True,\n    'elapsed_min': 1470,\n    'pathway': 'OUTSIDE_WINDOW',\n    'destination': 'COMPREHENSIVE'}),\n  ('large vessel exactly 24 hours',\n   {'face': 1, 'arm': 2, 'grip': 1, 'lkw': '03:00', 'now': '03:00', 'lkw_yesterday': True},\n   {'score': 4,\n    'lvo': True,\n    'elapsed_min': 1440,\n    'pathway': 'THROMBECTOMY_EVAL',\n    'destination': 'COMPREHENSIVE'})],\n [('mild deficit early',\n   {'face': 1, 'arm': 1, 'grip': 0, 'lkw': '10:00', 'now': '10:40', 'lkw_yesterday': False},\n   {'score': 2, 'lvo': False, 'elapsed_min': 40, 'pathway': 'THROMBOLYSIS_WINDOW', 'destination': 'NEAREST'}),\n  ('score exactly 4 without facial droop',\n   {'face': 0, 'arm': 2, 'grip': 2, 'lkw': '10:00', 'now': '12:00', 'lkw_yesterday': False},\n   {'score': 4,\n    'lvo': True,\n    'elapsed_min': 120,\n    'pathway': 'THROMBOLYSIS_WINDOW',\n    'destination': 'COMPREHENSIVE'}),\n  ('last known well yesterday evening',\n   {'face': 1, 'arm': 2, 'grip': 2, 'lkw': '22:00', 'now': '04:00', 'lkw_yesterday': True},\n   {'score': 5,\n    'lvo': True,\n    'elapsed_min': 360,\n    'pathway': 'THROMBECTOMY_EVAL',\n    'destination': 'COMPREHENSIVE'}),\n  ('exactly 4.5 hours',\n   {'face': 1, 'arm': 1, 'grip': 1, 'lkw': '04:00', 'now': '08:30', 'lkw_yesterday': False},\n   {'score': 3,\n    'lvo': False,\n    'elapsed_min': 270,\n    'pathway': 'THROMBOLYSIS_WINDOW',\n    'destination': 'NEAREST'}),\n  ('4 hours 50 minutes',\n   {'face': 0, 'arm': 1, 'grip': 1, 'lkw': '08:00', 'now': '12:49', 'lkw_yesterday': False},\n   {'score': 2, 'lvo': False, 'elapsed_min': 289, 'pathway': 'OUTSIDE_WINDOW', 'destination': 'NEAREST'}),\n  ('large vessel at 20 hours',\n   {'face': 1, 'arm': 2, 'grip': 1, 'lkw': '14:00', 'now': '10:00', 'lkw_yesterday': True},\n   {'score': 4,\n    'lvo': True,\n    'elapsed_min': 1200,\n    'pathway': 'THROMBECTOMY_EVAL',\n    'destination': 'COMPREHENSIVE'}),\n  ('large vessel beyond 24 hours',\n   {'face': 1, 'arm': 2, 'grip': 2, 'lkw': '08:00', 'now': '08:40', 'lkw_yesterday': True},\n   {'score': 5,\n    'lvo': True,\n    'elapsed_min': 1480,\n    'pathway': 'OUTSIDE_WINDOW',\n    'destination': 'COMPREHENSIVE'}),\n  ('large vessel exactly 24 hours',\n   {'face': 1, 'arm': 2, 'grip': 1, 'lkw': '04:00', 'now': '04:00', 'lkw_yesterday': True},\n   {'score': 4,\n    'lvo': True,\n    'elapsed_min': 1440,\n    'pathway': 'THROMBECTOMY_EVAL',\n    'destination': 'COMPREHENSIVE'})],\n [('mild deficit early',\n   {'face': 1, 'arm': 1, 'grip': 0, 'lkw': '10:00', 'now': '10:50', 'lkw_yesterday': False},\n   {'score': 2, 'lvo': False, 'elapsed_min': 50, 'pathway': 'THROMBOLYSIS_WINDOW', 'destination': 'NEAREST'}),\n  ('score exactly 4 without facial droop',\n   {'face': 0, 'arm': 2, 'grip': 2, 'lkw': '10:00', 'now': '12:00', 'lkw_yesterday': False},\n   {'score': 4,\n    'lvo': True,\n    'elapsed_min': 120,\n    'pathway': 'THROMBOLYSIS_WINDOW',\n    'destination': 'COMPREHENSIVE'}),\n  ('last known well yesterday evening',\n   {'face': 1, 'arm': 2, 'grip': 2, 'lkw': '22:00', 'now': '05:00', 'lkw_yesterday': True},\n   {'score': 5,\n    'lvo': True,\n    'elapsed_min': 420,\n    'pathway': 'THROMBECTOMY_EVAL',\n    'destination': 'COMPREHENSIVE'}),\n  ('exactly 4.5 hours',\n   {'face': 1, 'arm': 1, 'grip': 1, 'lkw': '05:00', 'now': '09:30', 'lkw_yesterday': False},\n   {'score': 3,\n    'lvo': False,\n    'elapsed_min': 270,\n    'pathway': 'THROMBOLYSIS_WINDOW',\n    'destination': 'NEAREST'}),\n  ('4 hours 50 minutes',\n   {'face': 0, 'arm': 1, 'grip': 1, 'lkw': '08:00', 'now': '12:50', 'lkw_yesterday': False},\n   {'score': 2, 'lvo': False, 'elapsed_min': 290, 'pathway': 'OUTSIDE_WINDOW', 'destination': 'NEAREST'}),\n  ('large vessel at 20 hours',\n   {'face': 1, 'arm': 2, 'grip': 2, 'lkw': '14:00', 'now': '10:00', 'lkw_yesterday': True},\n   {'score': 5,\n    'lvo': True,\n    'elapsed_min': 1200,\n    'pathway': 'THROMBECTOMY_EVAL',\n    'destination': 'COMPREHENSIVE'}),\n  ('large vessel beyond 24 hours',\n   {'face': 1, 'arm': 2, 'grip': 2, 'lkw': '08:00', 'now': '08:50', 'lkw_yesterday': True},\n   {'score': 5,\n    'lvo': True,\n    'elapsed_min': 1490,\n    'pathway': 'OUTSIDE_WINDOW',\n    'destination': 'COMPREHENSIVE'}),\n  ('large vessel exactly 24 hours',\n   {'face': 1, 'arm': 2, 'grip': 1, 'lkw': '05:00', 'now': '05:00', 'lkw_yesterday': True},\n   {'score': 4,\n    'lvo': True,\n    'elapsed_min': 1440,\n    'pathway': 'THROMBECTOMY_EVAL',\n    'destination': 'COMPREHENSIVE'})]]\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":"ee2c3fd62662fd83631b9cec9ef4e0486a4774f92379827284ed5313eba53602","source":"\"\"\"Failure Map reference implementation. Python standard library only.\"\"\"\nimport json\n\nN = 1\nobservations = []\ndef solve(x):\n    s = x['face'] + x['arm'] + x['grip']\n    lvo = s >= 4\n    def mins(t):\n        h, m = map(int, t.split(':'))\n        return h * 60 + m\n    elapsed = mins(x['now']) - mins(x['lkw'])\n    if elapsed <= 270:\n        path = 'THROMBOLYSIS_WINDOW'\n    elif elapsed <= 1440 and lvo:\n        path = 'THROMBECTOMY_EVAL'\n    else:\n        path = 'OUTSIDE_WINDOW'\n    dest = 'COMPREHENSIVE' if lvo else 'NEAREST'\n    return {'score': s, 'lvo': lvo, 'elapsed_min': elapsed, 'pathway': path, 'destination': dest}\ndef check(label, actual, expected):\n    observations.append({\"check\": label, \"actual\": actual, \"expected\": expected, \"passed\": actual == expected})\nfixtures = [[('mild deficit early',\n   {'face': 1, 'arm': 1, 'grip': 0, 'lkw': '10:00', 'now': '10:10', 'lkw_yesterday': False},\n   {'score': 2, 'lvo': False, 'elapsed_min': 10, 'pathway': 'THROMBOLYSIS_WINDOW', 'destination': 'NEAREST'}),\n  ('score exactly 4 without facial droop',\n   {'face': 0, 'arm': 2, 'grip': 2, 'lkw': '10:00', 'now': '12:00', 'lkw_yesterday': False},\n   {'score': 4,\n    'lvo': True,\n    'elapsed_min': 120,\n    'pathway': 'THROMBOLYSIS_WINDOW',\n    'destination': 'COMPREHENSIVE'}),\n  ('last known well yesterday evening',\n   {'face': 1, 'arm': 2, 'grip': 2, 'lkw': '22:00', 'now': '01:00', 'lkw_yesterday': True},\n   {'score': 5,\n    'lvo': True,\n    'elapsed_min': 180,\n    'pathway': 'THROMBOLYSIS_WINDOW',\n    'destination': 'COMPREHENSIVE'}),\n  ('exactly 4.5 hours',\n   {'face': 1, 'arm': 1, 'grip': 1, 'lkw': '01:00', 'now': '05:30', 'lkw_yesterday': False},\n   {'score': 3,\n    'lvo': False,\n    'elapsed_min': 270,\n    'pathway': 'THROMBOLYSIS_WINDOW',\n    'destination': 'NEAREST'}),\n  ('4 hours 50 minutes',\n   {'face': 0, 'arm': 1, 'grip': 1, 'lkw': '08:00', 'now': '12:46', 'lkw_yesterday': False},\n   {'score': 2, 'lvo': False, 'elapsed_min': 286, 'pathway': 'OUTSIDE_WINDOW', 'destination': 'NEAREST'}),\n  ('large vessel at 20 hours',\n   {'face': 1, 'arm': 2, 'grip': 2, 'lkw': '14:00', 'now': '10:00', 'lkw_yesterday': True},\n   {'score': 5,\n    'lvo': True,\n    'elapsed_min': 1200,\n    'pathway': 'THROMBECTOMY_EVAL',\n    'destination': 'COMPREHENSIVE'}),\n  ('large vessel beyond 24 hours',\n   {'face': 1, 'arm': 2, 'grip': 2, 'lkw': '08:00', 'now': '08:10', 'lkw_yesterday': True},\n   {'score': 5,\n    'lvo': True,\n    'elapsed_min': 1450,\n    'pathway': 'OUTSIDE_WINDOW',\n    'destination': 'COMPREHENSIVE'}),\n  ('large vessel exactly 24 hours',\n   {'face': 1, 'arm': 2, 'grip': 1, 'lkw': '01:00', 'now': '01:00', 'lkw_yesterday': True},\n   {'score': 4,\n    'lvo': True,\n    'elapsed_min': 1440,\n    'pathway': 'THROMBECTOMY_EVAL',\n    'destination': 'COMPREHENSIVE'})],\n [('mild deficit early',\n   {'face': 1, 'arm': 1, 'grip': 0, 'lkw': '10:00', 'now': '10:20', 'lkw_yesterday': False},\n   {'score': 2, 'lvo': False, 'elapsed_min': 20, 'pathway': 'THROMBOLYSIS_WINDOW', 'destination': 'NEAREST'}),\n  ('score exactly 4 without facial droop',\n   {'face': 0, 'arm': 2, 'grip': 2, 'lkw': '10:00', 'now': '12:00', 'lkw_yesterday': False},\n   {'score': 4,\n    'lvo': True,\n    'elapsed_min': 120,\n    'pathway': 'THROMBOLYSIS_WINDOW',\n    'destination': 'COMPREHENSIVE'}),\n  ('last known well yesterday evening',\n   {'face': 1, 'arm': 2, 'grip': 2, 'lkw': '22:00', 'now': '02:00', 'lkw_yesterday': True},\n   {'score': 5,\n    'lvo': True,\n    'elapsed_min': 240,\n    'pathway': 'THROMBOLYSIS_WINDOW',\n    'destination': 'COMPREHENSIVE'}),\n  ('exactly 4.5 hours',\n   {'face': 1, 'arm': 1, 'grip': 1, 'lkw': '02:00', 'now': '06:30', 'lkw_yesterday': False},\n   {'score': 3,\n    'lvo': False,\n    'elapsed_min': 270,\n    'pathway': 'THROMBOLYSIS_WINDOW',\n    'destination': 'NEAREST'}),\n  ('4 hours 50 minutes',\n   {'face': 0, 'arm': 1, 'grip': 1, 'lkw': '08:00', 'now': '12:47', 'lkw_yesterday': False},\n   {'score': 2, 'lvo': False, 'elapsed_min': 287, 'pathway': 'OUTSIDE_WINDOW', 'destination': 'NEAREST'}),\n  ('large vessel at 20 hours',\n   {'face': 1, 'arm': 2, 'grip': 1, 'lkw': '14:00', 'now': '10:00', 'lkw_yesterday': True},\n   {'score': 4,\n    'lvo': True,\n    'elapsed_min': 1200,\n    'pathway': 'THROMBECTOMY_EVAL',\n    'destination': 'COMPREHENSIVE'}),\n  ('large vessel beyond 24 hours',\n   {'face': 1, 'arm': 2, 'grip': 2, 'lkw': '08:00', 'now': '08:20', 'lkw_yesterday': True},\n   {'score': 5,\n    'lvo': True,\n    'elapsed_min': 1460,\n    'pathway': 'OUTSIDE_WINDOW',\n    'destination': 'COMPREHENSIVE'}),\n  ('large vessel exactly 24 hours',\n   {'face': 1, 'arm': 2, 'grip': 1, 'lkw': '02:00', 'now': '02:00', 'lkw_yesterday': True},\n   {'score': 4,\n    'lvo': True,\n    'elapsed_min': 1440,\n    'pathway': 'THROMBECTOMY_EVAL',\n    'destination': 'COMPREHENSIVE'})],\n [('mild deficit early',\n   {'face': 1, 'arm': 1, 'grip': 0, 'lkw': '10:00', 'now': '10:30', 'lkw_yesterday': False},\n   {'score': 2, 'lvo': False, 'elapsed_min': 30, 'pathway': 'THROMBOLYSIS_WINDOW', 'destination': 'NEAREST'}),\n  ('score exactly 4 without facial droop',\n   {'face': 0, 'arm': 2, 'grip': 2, 'lkw': '10:00', 'now': '12:00', 'lkw_yesterday': False},\n   {'score': 4,\n    'lvo': True,\n    'elapsed_min': 120,\n    'pathway': 'THROMBOLYSIS_WINDOW',\n    'destination': 'COMPREHENSIVE'}),\n  ('last known well yesterday evening',\n   {'face': 1, 'arm': 2, 'grip': 2, 'lkw': '22:00', 'now': '03:00', 'lkw_yesterday': True},\n   {'score': 5,\n    'lvo': True,\n    'elapsed_min': 300,\n    'pathway': 'THROMBECTOMY_EVAL',\n    'destination': 'COMPREHENSIVE'}),\n  ('exactly 4.5 hours',\n   {'face': 1, 'arm': 1, 'grip': 1, 'lkw': '03:00', 'now': '07:30', 'lkw_yesterday': False},\n   {'score': 3,\n    'lvo': False,\n    'elapsed_min': 270,\n    'pathway': 'THROMBOLYSIS_WINDOW',\n    'destination': 'NEAREST'}),\n  ('4 hours 50 minutes',\n   {'face': 0, 'arm': 1, 'grip': 1, 'lkw': '08:00', 'now': '12:48', 'lkw_yesterday': False},\n   {'score': 2, 'lvo': False, 'elapsed_min': 288, 'pathway': 'OUTSIDE_WINDOW', 'destination': 'NEAREST'}),\n  ('large vessel at 20 hours',\n   {'face': 1, 'arm': 2, 'grip': 2, 'lkw': '14:00', 'now': '10:00', 'lkw_yesterday': True},\n   {'score': 5,\n    'lvo': True,\n    'elapsed_min': 1200,\n    'pathway': 'THROMBECTOMY_EVAL',\n    'destination': 'COMPREHENSIVE'}),\n  ('large vessel beyond 24 hours',\n   {'face': 1, 'arm': 2, 'grip': 2, 'lkw': '08:00', 'now': '08:30', 'lkw_yesterday': True},\n   {'score': 5,\n    'lvo': True,\n    'elapsed_min': 1470,\n    'pathway': 'OUTSIDE_WINDOW',\n    'destination': 'COMPREHENSIVE'}),\n  ('large vessel exactly 24 hours',\n   {'face': 1, 'arm': 2, 'grip': 1, 'lkw': '03:00', 'now': '03:00', 'lkw_yesterday': True},\n   {'score': 4,\n    'lvo': True,\n    'elapsed_min': 1440,\n    'pathway': 'THROMBECTOMY_EVAL',\n    'destination': 'COMPREHENSIVE'})],\n [('mild deficit early',\n   {'face': 1, 'arm': 1, 'grip': 0, 'lkw': '10:00', 'now': '10:40', 'lkw_yesterday': False},\n   {'score': 2, 'lvo': False, 'elapsed_min': 40, 'pathway': 'THROMBOLYSIS_WINDOW', 'destination': 'NEAREST'}),\n  ('score exactly 4 without facial droop',\n   {'face': 0, 'arm': 2, 'grip': 2, 'lkw': '10:00', 'now': '12:00', 'lkw_yesterday': False},\n   {'score': 4,\n    'lvo': True,\n    'elapsed_min': 120,\n    'pathway': 'THROMBOLYSIS_WINDOW',\n    'destination': 'COMPREHENSIVE'}),\n  ('last known well yesterday evening',\n   {'face': 1, 'arm': 2, 'grip': 2, 'lkw': '22:00', 'now': '04:00', 'lkw_yesterday': True},\n   {'score': 5,\n    'lvo': True,\n    'elapsed_min': 360,\n    'pathway': 'THROMBECTOMY_EVAL',\n    'destination': 'COMPREHENSIVE'}),\n  ('exactly 4.5 hours',\n   {'face': 1, 'arm': 1, 'grip': 1, 'lkw': '04:00', 'now': '08:30', 'lkw_yesterday': False},\n   {'score': 3,\n    'lvo': False,\n    'elapsed_min': 270,\n    'pathway': 'THROMBOLYSIS_WINDOW',\n    'destination': 'NEAREST'}),\n  ('4 hours 50 minutes',\n   {'face': 0, 'arm': 1, 'grip': 1, 'lkw': '08:00', 'now': '12:49', 'lkw_yesterday': False},\n   {'score': 2, 'lvo': False, 'elapsed_min': 289, 'pathway': 'OUTSIDE_WINDOW', 'destination': 'NEAREST'}),\n  ('large vessel at 20 hours',\n   {'face': 1, 'arm': 2, 'grip': 1, 'lkw': '14:00', 'now': '10:00', 'lkw_yesterday': True},\n   {'score': 4,\n    'lvo': True,\n    'elapsed_min': 1200,\n    'pathway': 'THROMBECTOMY_EVAL',\n    'destination': 'COMPREHENSIVE'}),\n  ('large vessel beyond 24 hours',\n   {'face': 1, 'arm': 2, 'grip': 2, 'lkw': '08:00', 'now': '08:40', 'lkw_yesterday': True},\n   {'score': 5,\n    'lvo': True,\n    'elapsed_min': 1480,\n    'pathway': 'OUTSIDE_WINDOW',\n    'destination': 'COMPREHENSIVE'}),\n  ('large vessel exactly 24 hours',\n   {'face': 1, 'arm': 2, 'grip': 1, 'lkw': '04:00', 'now': '04:00', 'lkw_yesterday': True},\n   {'score': 4,\n    'lvo': True,\n    'elapsed_min': 1440,\n    'pathway': 'THROMBECTOMY_EVAL',\n    'destination': 'COMPREHENSIVE'})],\n [('mild deficit early',\n   {'face': 1, 'arm': 1, 'grip': 0, 'lkw': '10:00', 'now': '10:50', 'lkw_yesterday': False},\n   {'score': 2, 'lvo': False, 'elapsed_min': 50, 'pathway': 'THROMBOLYSIS_WINDOW', 'destination': 'NEAREST'}),\n  ('score exactly 4 without facial droop',\n   {'face': 0, 'arm': 2, 'grip': 2, 'lkw': '10:00', 'now': '12:00', 'lkw_yesterday': False},\n   {'score': 4,\n    'lvo': True,\n    'elapsed_min': 120,\n    'pathway': 'THROMBOLYSIS_WINDOW',\n    'destination': 'COMPREHENSIVE'}),\n  ('last known well yesterday evening',\n   {'face': 1, 'arm': 2, 'grip': 2, 'lkw': '22:00', 'now': '05:00', 'lkw_yesterday': True},\n   {'score': 5,\n    'lvo': True,\n    'elapsed_min': 420,\n    'pathway': 'THROMBECTOMY_EVAL',\n    'destination': 'COMPREHENSIVE'}),\n  ('exactly 4.5 hours',\n   {'face': 1, 'arm': 1, 'grip': 1, 'lkw': '05:00', 'now': '09:30', 'lkw_yesterday': False},\n   {'score': 3,\n    'lvo': False,\n    'elapsed_min': 270,\n    'pathway': 'THROMBOLYSIS_WINDOW',\n    'destination': 'NEAREST'}),\n  ('4 hours 50 minutes',\n   {'face': 0, 'arm': 1, 'grip': 1, 'lkw': '08:00', 'now': '12:50', 'lkw_yesterday': False},\n   {'score': 2, 'lvo': False, 'elapsed_min': 290, 'pathway': 'OUTSIDE_WINDOW', 'destination': 'NEAREST'}),\n  ('large vessel at 20 hours',\n   {'face': 1, 'arm': 2, 'grip': 2, 'lkw': '14:00', 'now': '10:00', 'lkw_yesterday': True},\n   {'score': 5,\n    'lvo': True,\n    'elapsed_min': 1200,\n    'pathway': 'THROMBECTOMY_EVAL',\n    'destination': 'COMPREHENSIVE'}),\n  ('large vessel beyond 24 hours',\n   {'face': 1, 'arm': 2, 'grip': 2, 'lkw': '08:00', 'now': '08:50', 'lkw_yesterday': True},\n   {'score': 5,\n    'lvo': True,\n    'elapsed_min': 1490,\n    'pathway': 'OUTSIDE_WINDOW',\n    'destination': 'COMPREHENSIVE'}),\n  ('large vessel exactly 24 hours',\n   {'face': 1, 'arm': 2, 'grip': 1, 'lkw': '05:00', 'now': '05:00', 'lkw_yesterday': True},\n   {'score': 4,\n    'lvo': True,\n    'elapsed_min': 1440,\n    'pathway': 'THROMBECTOMY_EVAL',\n    'destination': 'COMPREHENSIVE'})]]\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":"A deterministic toy software model with explicitly stipulated thresholds and formulas; it is not clinical guidance, not a validated medical calculator, and makes no claim of conformance to any published protocol. Numbered variants vary patient and order inputs. 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-triage-stroke-routing-overnight-last-known-well","generated_at":"2026-09-29T14:47:26.254966+00:00","license":"CC0-1.0","python":"3.12.14","seed":1,"split":"open-access"},"relevance":"Stroke routing couples a severity threshold with clock arithmetic over last-known-well; each is a distinct failure mode.","root_cause":"The yesterday flag is ignored, so overnight intervals go negative.","sha256":"5b2bc565ae69443edd9b7b5cb8ec7e850b3a892526ae3a344164fbbca59c876e","title":"Prehospital stroke severity and time-window routing: overnight last-known-well · case 01","variant":1,"variant_policy":"Five numbered records share a model and may reuse boundary fixtures.","verified":true,"visibility":"public","verification":{"attempt":{"elapsed_ms":46.018,"exit_code":1,"observations":[{"actual":{"destination":"NEAREST","elapsed_min":10,"lvo":false,"pathway":"THROMBOLYSIS_WINDOW","score":2},"check":"mild deficit early","expected":{"destination":"NEAREST","elapsed_min":10,"lvo":false,"pathway":"THROMBOLYSIS_WINDOW","score":2},"passed":true},{"actual":{"destination":"COMPREHENSIVE","elapsed_min":120,"lvo":true,"pathway":"THROMBOLYSIS_WINDOW","score":4},"check":"score exactly 4 without facial droop","expected":{"destination":"COMPREHENSIVE","elapsed_min":120,"lvo":true,"pathway":"THROMBOLYSIS_WINDOW","score":4},"passed":true},{"actual":{"destination":"COMPREHENSIVE","elapsed_min":1260,"lvo":true,"pathway":"THROMBECTOMY_EVAL","score":5},"check":"last known well yesterday evening","expected":{"destination":"COMPREHENSIVE","elapsed_min":180,"lvo":true,"pathway":"THROMBOLYSIS_WINDOW","score":5},"passed":false},{"actual":{"destination":"NEAREST","elapsed_min":270,"lvo":false,"pathway":"THROMBOLYSIS_WINDOW","score":3},"check":"exactly 4.5 hours","expected":{"destination":"NEAREST","elapsed_min":270,"lvo":false,"pathway":"THROMBOLYSIS_WINDOW","score":3},"passed":true},{"actual":{"destination":"NEAREST","elapsed_min":286,"lvo":false,"pathway":"OUTSIDE_WINDOW","score":2},"check":"4 hours 50 minutes","expected":{"destination":"NEAREST","elapsed_min":286,"lvo":false,"pathway":"OUTSIDE_WINDOW","score":2},"passed":true},{"actual":{"destination":"COMPREHENSIVE","elapsed_min":240,"lvo":true,"pathway":"THROMBOLYSIS_WINDOW","score":5},"check":"large vessel at 20 hours","expected":{"destination":"COMPREHENSIVE","elapsed_min":1200,"lvo":true,"pathway":"THROMBECTOMY_EVAL","score":5},"passed":false},{"actual":{"destination":"COMPREHENSIVE","elapsed_min":10,"lvo":true,"pathway":"THROMBOLYSIS_WINDOW","score":5},"check":"large vessel beyond 24 hours","expected":{"destination":"COMPREHENSIVE","elapsed_min":1450,"lvo":true,"pathway":"OUTSIDE_WINDOW","score":5},"passed":false},{"actual":{"destination":"COMPREHENSIVE","elapsed_min":0,"lvo":true,"pathway":"THROMBOLYSIS_WINDOW","score":4},"check":"large vessel exactly 24 hours","expected":{"destination":"COMPREHENSIVE","elapsed_min":1440,"lvo":true,"pathway":"THROMBECTOMY_EVAL","score":4},"passed":false}],"passed":false,"stderr":"","stdout":"{\"observations\": [{\"check\": \"mild deficit early\", \"actual\": {\"score\": 2, \"lvo\": false, \"elapsed_min\": 10, \"pathway\": \"THROMBOLYSIS_WINDOW\", \"destination\": \"NEAREST\"}, \"expected\": {\"score\": 2, \"lvo\": false, \"elapsed_min\": 10, \"pathway\": \"THROMBOLYSIS_WINDOW\", \"destination\": \"NEAREST\"}, \"passed\": true}, {\"check\": \"score exactly 4 without facial droop\", \"actual\": {\"score\": 4, \"lvo\": true, \"elapsed_min\": 120, \"pathway\": \"THROMBOLYSIS_WINDOW\", \"destination\": \"COMPREHENSIVE\"}, \"expected\": {\"score\": 4, \"lvo\": true, \"elapsed_min\": 120, \"pathway\": \"THROMBOLYSIS_WINDOW\", \"destination\": \"COMPREHENSIVE\"}, \"passed\": true}, {\"check\": \"last known well yesterday evening\", \"actual\": {\"score\": 5, \"lvo\": true, \"elapsed_min\": 1260, \"pathway\": \"THROMBECTOMY_EVAL\", \"destination\": \"COMPREHENSIVE\"}, \"expected\": {\"score\": 5, \"lvo\": true, \"elapsed_min\": 180, \"pathway\": \"THROMBOLYSIS_WINDOW\", \"destination\": \"COMPREHENSIVE\"}, \"passed\": false}, {\"check\": \"exactly 4.5 hours\", \"actual\": {\"score\": 3, \"lvo\": false, \"elapsed_min\": 270, \"pathway\": \"THROMBOLYSIS_WINDOW\", \"destination\": \"NEAREST\"}, \"expected\": {\"score\": 3, \"lvo\": false, \"elapsed_min\": 270, \"pathway\": \"THROMBOLYSIS_WINDOW\", \"destination\": \"NEAREST\"}, \"passed\": true}, {\"check\": \"4 hours 50 minutes\", \"actual\": {\"score\": 2, \"lvo\": false, \"elapsed_min\": 286, \"pathway\": \"OUTSIDE_WINDOW\", \"destination\": \"NEAREST\"}, \"expected\": {\"score\": 2, \"lvo\": false, \"elapsed_min\": 286, \"pathway\": \"OUTSIDE_WINDOW\", \"destination\": \"NEAREST\"}, \"passed\": true}, {\"check\": \"large vessel at 20 hours\", \"actual\": {\"score\": 5, \"lvo\": true, \"elapsed_min\": 240, \"pathway\": \"THROMBOLYSIS_WINDOW\", \"destination\": \"COMPREHENSIVE\"}, \"expected\": {\"score\": 5, \"lvo\": true, \"elapsed_min\": 1200, \"pathway\": \"THROMBECTOMY_EVAL\", \"destination\": \"COMPREHENSIVE\"}, \"passed\": false}, {\"check\": \"large vessel beyond 24 hours\", \"actual\": {\"score\": 5, \"lvo\": true, \"elapsed_min\": 10, \"pathway\": \"THROMBOLYSIS_WINDOW\", \"destination\": \"COMPREHENSIVE\"}, \"expected\": {\"score\": 5, \"lvo\": true, \"elapsed_min\": 1450, \"pathway\": \"OUTSIDE_WINDOW\", \"destination\": \"COMPREHENSIVE\"}, \"passed\": false}, {\"check\": \"large vessel exactly 24 hours\", \"actual\": {\"score\": 4, \"lvo\": true, \"elapsed_min\": 0, \"pathway\": \"THROMBOLYSIS_WINDOW\", \"destination\": \"COMPREHENSIVE\"}, \"expected\": {\"score\": 4, \"lvo\": true, \"elapsed_min\": 1440, \"pathway\": \"THROMBECTOMY_EVAL\", \"destination\": \"COMPREHENSIVE\"}, \"passed\": false}], \"passed\": false}\n"},"broken":{"elapsed_ms":42.695,"exit_code":1,"observations":[{"actual":{"destination":"NEAREST","elapsed_min":10,"lvo":false,"pathway":"THROMBOLYSIS_WINDOW","score":2},"check":"mild deficit early","expected":{"destination":"NEAREST","elapsed_min":10,"lvo":false,"pathway":"THROMBOLYSIS_WINDOW","score":2},"passed":true},{"actual":{"destination":"COMPREHENSIVE","elapsed_min":120,"lvo":true,"pathway":"THROMBOLYSIS_WINDOW","score":4},"check":"score exactly 4 without facial droop","expected":{"destination":"COMPREHENSIVE","elapsed_min":120,"lvo":true,"pathway":"THROMBOLYSIS_WINDOW","score":4},"passed":true},{"actual":{"destination":"COMPREHENSIVE","elapsed_min":-1260,"lvo":true,"pathway":"THROMBOLYSIS_WINDOW","score":5},"check":"last known well yesterday evening","expected":{"destination":"COMPREHENSIVE","elapsed_min":180,"lvo":true,"pathway":"THROMBOLYSIS_WINDOW","score":5},"passed":false},{"actual":{"destination":"NEAREST","elapsed_min":270,"lvo":false,"pathway":"THROMBOLYSIS_WINDOW","score":3},"check":"exactly 4.5 hours","expected":{"destination":"NEAREST","elapsed_min":270,"lvo":false,"pathway":"THROMBOLYSIS_WINDOW","score":3},"passed":true},{"actual":{"destination":"NEAREST","elapsed_min":286,"lvo":false,"pathway":"OUTSIDE_WINDOW","score":2},"check":"4 hours 50 minutes","expected":{"destination":"NEAREST","elapsed_min":286,"lvo":false,"pathway":"OUTSIDE_WINDOW","score":2},"passed":true},{"actual":{"destination":"COMPREHENSIVE","elapsed_min":-240,"lvo":true,"pathway":"THROMBOLYSIS_WINDOW","score":5},"check":"large vessel at 20 hours","expected":{"destination":"COMPREHENSIVE","elapsed_min":1200,"lvo":true,"pathway":"THROMBECTOMY_EVAL","score":5},"passed":false},{"actual":{"destination":"COMPREHENSIVE","elapsed_min":10,"lvo":true,"pathway":"THROMBOLYSIS_WINDOW","score":5},"check":"large vessel beyond 24 hours","expected":{"destination":"COMPREHENSIVE","elapsed_min":1450,"lvo":true,"pathway":"OUTSIDE_WINDOW","score":5},"passed":false},{"actual":{"destination":"COMPREHENSIVE","elapsed_min":0,"lvo":true,"pathway":"THROMBOLYSIS_WINDOW","score":4},"check":"large vessel exactly 24 hours","expected":{"destination":"COMPREHENSIVE","elapsed_min":1440,"lvo":true,"pathway":"THROMBECTOMY_EVAL","score":4},"passed":false}],"passed":false,"stderr":"","stdout":"{\"observations\": [{\"check\": \"mild deficit early\", \"actual\": {\"score\": 2, \"lvo\": false, \"elapsed_min\": 10, \"pathway\": \"THROMBOLYSIS_WINDOW\", \"destination\": \"NEAREST\"}, \"expected\": {\"score\": 2, \"lvo\": false, \"elapsed_min\": 10, \"pathway\": \"THROMBOLYSIS_WINDOW\", \"destination\": \"NEAREST\"}, \"passed\": true}, {\"check\": \"score exactly 4 without facial droop\", \"actual\": {\"score\": 4, \"lvo\": true, \"elapsed_min\": 120, \"pathway\": \"THROMBOLYSIS_WINDOW\", \"destination\": \"COMPREHENSIVE\"}, \"expected\": {\"score\": 4, \"lvo\": true, \"elapsed_min\": 120, \"pathway\": \"THROMBOLYSIS_WINDOW\", \"destination\": \"COMPREHENSIVE\"}, \"passed\": true}, {\"check\": \"last known well yesterday evening\", \"actual\": {\"score\": 5, \"lvo\": true, \"elapsed_min\": -1260, \"pathway\": \"THROMBOLYSIS_WINDOW\", \"destination\": \"COMPREHENSIVE\"}, \"expected\": {\"score\": 5, \"lvo\": true, \"elapsed_min\": 180, \"pathway\": \"THROMBOLYSIS_WINDOW\", \"destination\": \"COMPREHENSIVE\"}, \"passed\": false}, {\"check\": \"exactly 4.5 hours\", \"actual\": {\"score\": 3, \"lvo\": false, \"elapsed_min\": 270, \"pathway\": \"THROMBOLYSIS_WINDOW\", \"destination\": \"NEAREST\"}, \"expected\": {\"score\": 3, \"lvo\": false, \"elapsed_min\": 270, \"pathway\": \"THROMBOLYSIS_WINDOW\", \"destination\": \"NEAREST\"}, \"passed\": true}, {\"check\": \"4 hours 50 minutes\", \"actual\": {\"score\": 2, \"lvo\": false, \"elapsed_min\": 286, \"pathway\": \"OUTSIDE_WINDOW\", \"destination\": \"NEAREST\"}, \"expected\": {\"score\": 2, \"lvo\": false, \"elapsed_min\": 286, \"pathway\": \"OUTSIDE_WINDOW\", \"destination\": \"NEAREST\"}, \"passed\": true}, {\"check\": \"large vessel at 20 hours\", \"actual\": {\"score\": 5, \"lvo\": true, \"elapsed_min\": -240, \"pathway\": \"THROMBOLYSIS_WINDOW\", \"destination\": \"COMPREHENSIVE\"}, \"expected\": {\"score\": 5, \"lvo\": true, \"elapsed_min\": 1200, \"pathway\": \"THROMBECTOMY_EVAL\", \"destination\": \"COMPREHENSIVE\"}, \"passed\": false}, {\"check\": \"large vessel beyond 24 hours\", \"actual\": {\"score\": 5, \"lvo\": true, \"elapsed_min\": 10, \"pathway\": \"THROMBOLYSIS_WINDOW\", \"destination\": \"COMPREHENSIVE\"}, \"expected\": {\"score\": 5, \"lvo\": true, \"elapsed_min\": 1450, \"pathway\": \"OUTSIDE_WINDOW\", \"destination\": \"COMPREHENSIVE\"}, \"passed\": false}, {\"check\": \"large vessel exactly 24 hours\", \"actual\": {\"score\": 4, \"lvo\": true, \"elapsed_min\": 0, \"pathway\": \"THROMBOLYSIS_WINDOW\", \"destination\": \"COMPREHENSIVE\"}, \"expected\": {\"score\": 4, \"lvo\": true, \"elapsed_min\": 1440, \"pathway\": \"THROMBECTOMY_EVAL\", \"destination\": \"COMPREHENSIVE\"}, \"passed\": false}], \"passed\": false}\n"}},"member_only":{"stages":["fixed"],"fields":["implementations.fixed","verification.fixed","harness","repair"],"note":"The verified repair, its recorded checks, the repair description, and the scoring harness are available to members."}}