FA-92616 / HVAC thermostat control / Open access

Frost-protection limit drops below its 15% floor · case 01

In extreme cold the humidifier is locked out entirely.

Verified by executionVariant 1 · 8 checks per implementationDownload source bundle ↓JSON ↗

ROOT CAUSE

The allowed-RH clamp only applies the 45% ceiling.

VERIFIED REPAIR

Clamp allowed RH to 15..45.

Unsuccessful approach: Applying only the floor lets mild weather exceed the 45% ceiling.

Case contract

Thermostat humidity functions per sample; samples are [temp tenths F, indoor RH %, outdoor whole F]. Dehumidify-by-overcooling turns on when RH > rh_sp + 5 and off when RH <= rh_sp; while on, the effective cooling setpoint is lowered by min(max_overcool, (RH - rh_sp) * 5) tenths. Cooling starts above effective + 1.0 F and ends at <= effective. Humidifier: allowed RH = 40 + floor((outdoor - 20) / 10) * 5 clamped to 15..45; target = min(hum_sp, allowed); it is off when outdoor >= 50, otherwise starts below target - 3 and stops at >= target. Return [cooling, effective_sp, humidifier].

Why this case matters

Residential and light-commercial thermostats make these decisions sample by sample; each defect changes equipment calls in a way that shows up as short cycling, comfort complaints or equipment stress.

1 / The failure

Exit 1

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

N = 1
observations = []
def solve(settings, samples):
    dehum = False
    cooling = False
    humid = False
    out = []
    for temp, rh, outdoor in samples:
        if dehum and rh <= settings['rh_sp']:
            dehum = False
        elif not dehum and rh > settings['rh_sp'] + 5:
            dehum = True
        eff = settings['cool_sp']
        if dehum:
            eff -= min(settings['max_overcool'], (rh - settings['rh_sp']) * 5)
        if cooling and temp <= eff:
            cooling = False
        elif not cooling and temp > eff + 10:
            cooling = True
        allowed = min(45, 40 + (outdoor - 20) // 10 * 5)
        target = min(settings['hum_sp'], allowed)
        if outdoor >= 50:
            humid = False
        elif humid and rh >= target:
            humid = False
        elif not humid and rh < target - 3:
            humid = True
        out.append([cooling, eff, humid])
    return out
def check(label, actual, expected):
    observations.append({"check": label, "actual": actual, "expected": expected, "passed": actual == expected})
fixtures = [[['regression: frost limit steps',
   [{'cool_sp': 750, 'rh_sp': 50, 'max_overcool': 20, 'hum_sp': 45},
    [[700, 30, 25], [700, 33, 29], [700, 36, 30], [700, 36, -5], [700, 10, -40], [700, 30, 55]]],
   [[False, 750, True],
    [False, 750, True],
    [False, 750, True],
    [False, 750, False],
    [False, 750, True],
    [False, 750, False]]],
  ['regression: mild dry day',
   [{'cool_sp': 750, 'rh_sp': 50, 'max_overcool': 20, 'hum_sp': 50},
    [[700, 40, 45], [700, 43, 45], [700, 46, 45], [700, 48, 45]]],
   [[False, 750, True], [False, 750, True], [False, 750, False], [False, 750, False]]],
  ['control: summer then winter',
   [{'cool_sp': 750, 'rh_sp': 50, 'max_overcool': 30, 'hum_sp': 40},
    [[765, 52, 80],
     [762, 58, 80],
     [745, 58, 80],
     [738, 50, 80],
     [700, 25, 10],
     [700, 29, 10],
     [700, 36, 10],
     [700, 10, -15]]],
   [[True, 750, False],
    [True, 720, False],
    [True, 720, False],
    [False, 750, False],
    [False, 750, True],
    [False, 750, True],
    [False, 750, False],
    [False, 750, True]]],
  ['control: dehumidify band',
   [{'cool_sp': 750, 'rh_sp': 50, 'max_overcool': 30, 'hum_sp': 40},
    [[760, 56, 80],
     [752, 53, 80],
     [745, 52, 80],
     [741, 51, 80],
     [741, 50, 80],
     [752, 52, 80],
     [749, 52, 80]]],
   [[True, 720, False],
    [True, 735, False],
    [True, 740, False],
    [False, 745, False],
    [False, 750, False],
    [False, 750, False],
    [False, 750, False]]],
  ['control: cold snap',
   [{'cool_sp': 750, 'rh_sp': 50, 'max_overcool': 20, 'hum_sp': 45},
    [[700, 12, -60], [700, 14, -60], [700, 16, -60], [700, 20, 50], [700, 20, 49]]],
   [[False, 750, False], [False, 750, False], [False, 750, False], [False, 750, False], [False, 750, True]]],
  ['control: scenario 1',
   [{'cool_sp': 750, 'rh_sp': 50, 'max_overcool': 30, 'hum_sp': 40},
    [[738, 41, 24],
     [734, 38, 21],
     [725, 33, 9],
     [726, 34, -2],
     [733, 39, 7],
     [743, 36, 7],
     [740, 38, 7],
     [752, 32, 19],
     [742, 34, 11],
     [732, 32, 9]]],
   [[False, 750, False],
    [False, 750, False],
    [False, 750, False],
    [False, 750, False],
    [False, 750, False],
    [False, 750, False],
    [False, 750, False],
    [False, 750, False],
    [False, 750, False],
    [False, 750, False]]],
  ['control: scenario 2',
   [{'cool_sp': 750, 'rh_sp': 50, 'max_overcool': 30, 'hum_sp': 40},
    [[762, 20, -5],
     [767, 18, -6],
     [764, 13, -16],
     [765, 11, -12],
     [758, 10, -15],
     [757, 16, -3],
     [761, 16, 7],
     [758, 10, 13],
     [765, 10, 16],
     [763, 13, 12],
     [775, 16, 9],
     [765, 18, 4],
     [755, 20, 3],
     [754, 25, -3]]],
   [[True, 750, True],
    [True, 750, True],
    [True, 750, True],
    [True, 750, True],
    [True, 750, True],
    [True, 750, True],
    [True, 750, True],
    [True, 750, True],
    [True, 750, True],
    [True, 750, True],
    [True, 750, True],
    [True, 750, True],
    [True, 750, True],
    [True, 750, False]]],
  ['control: scenario 3',
   [{'cool_sp': 750, 'rh_sp': 50, 'max_overcool': 30, 'hum_sp': 45},
    [[741, 31, 49],
     [750, 36, 55],
     [739, 36, 59],
     [734, 34, 55],
     [728, 33, 56],
     [717, 35, 48],
     [715, 34, 60],
     [726, 38, 57],
     [726, 39, 57],
     [719, 34, 54],
     [726, 39, 57],
     [729, 41, 61],
     [732, 39, 66],
     [743, 40, 75]]],
   [[False, 750, True],
    [False, 750, False],
    [False, 750, False],
    [False, 750, False],
    [False, 750, False],
    [False, 750, True],
    [False, 750, False],
    [False, 750, False],
    [False, 750, False],
    [False, 750, False],
    [False, 750, False],
    [False, 750, False],
    [False, 750, False],
    [False, 750, False]]]],
 [['regression: frost limit steps',
   [{'cool_sp': 750, 'rh_sp': 50, 'max_overcool': 20, 'hum_sp': 45},
    [[700, 30, 25], [700, 33, 29], [700, 36, 30], [700, 36, -5], [700, 10, -40], [700, 30, 55]]],
   [[False, 750, True],
    [False, 750, True],
    [False, 750, True],
    [False, 750, False],
    [False, 750, True],
    [False, 750, False]]],
  ['regression: scenario 28',
   [{'cool_sp': 750, 'rh_sp': 50, 'max_overcool': 30, 'hum_sp': 50},
    [[757, 49, 37],
     [765, 45, 47],
     [753, 39, 59],
     [747, 34, 56],
     [751, 39, 66],
     [748, 35, 68],
     [754, 40, 59],
     [757, 41, 50],
     [755, 42, 54],
     [752, 46, 56],
     [748, 51, 67],
     [738, 51, 79],
     [739, 52, 77]]],
   [[False, 750, False],
    [True, 750, False],
    [True, 750, False],
    [False, 750, False],
    [False, 750, False],
    [False, 750, False],
    [False, 750, False],
    [False, 750, False],
    [False, 750, False],
    [False, 750, False],
    [False, 750, False],
    [False, 750, False],
    [False, 750, False]]],
  ['control: summer then winter',
   [{'cool_sp': 750, 'rh_sp': 50, 'max_overcool': 30, 'hum_sp': 40},
    [[765, 52, 80],
     [762, 58, 80],
     [745, 58, 80],
     [738, 50, 80],
     [700, 25, 10],
     [700, 29, 10],
     [700, 36, 10],
     [700, 10, -15]]],
   [[True, 750, False],
    [True, 720, False],
    [True, 720, False],
    [False, 750, False],
    [False, 750, True],
    [False, 750, True],
    [False, 750, False],
    [False, 750, True]]],
  ['control: dehumidify band',
   [{'cool_sp': 750, 'rh_sp': 50, 'max_overcool': 30, 'hum_sp': 40},
    [[760, 56, 80],
     [752, 53, 80],
     [745, 52, 80],
     [741, 51, 80],
     [741, 50, 80],
     [752, 52, 80],
     [749, 52, 80]]],
   [[True, 720, False],
    [True, 735, False],
    [True, 740, False],
    [False, 745, False],
    [False, 750, False],
    [False, 750, False],
    [False, 750, False]]],
  ['regression: mild dry day',
   [{'cool_sp': 750, 'rh_sp': 50, 'max_overcool': 20, 'hum_sp': 50},
    [[700, 40, 45], [700, 43, 45], [700, 46, 45], [700, 48, 45]]],
   [[False, 750, True], [False, 750, True], [False, 750, False], [False, 750, False]]],
  ['control: cold snap',
   [{'cool_sp': 750, 'rh_sp': 50, 'max_overcool': 20, 'hum_sp': 45},
    [[700, 12, -60], [700, 14, -60], [700, 16, -60], [700, 20, 50], [700, 20, 49]]],
   [[False, 750, False], [False, 750, False], [False, 750, False], [False, 750, False], [False, 750, True]]],
  ['control: scenario 1',
   [{'cool_sp': 750, 'rh_sp': 50, 'max_overcool': 30, 'hum_sp': 40},
    [[741, 58, -1],
     [736, 54, -9],
     [726, 56, 2],
     [715, 54, 0],
     [721, 55, 1],
     [732, 51, -1],
     [731, 51, -7],
     [727, 55, -12],
     [721, 57, -12]]],
   [[True, 720, False],
    [True, 730, False],
    [True, 720, False],
    [False, 730, False],
    [False, 725, False],
    [False, 745, False],
    [False, 745, False],
    [False, 725, False],
    [False, 720, False]]],
  ['control: scenario 2',
   [{'cool_sp': 750, 'rh_sp': 50, 'max_overcool': 20, 'hum_sp': 40},
    [[749, 37, 58],
     [756, 33, 55],
     [768, 38, 65],
     [771, 41, 72],
     [780, 47, 71],
     [774, 50, 64],
     [770, 54, 73],
     [777, 59, 73],
     [786, 63, 85],
     [788, 59, 90],
     [790, 61, 90],
     [782, 58, 85],
     [790, 53, 80],
     [790, 48, 82]]],
   [[False, 750, False],
    [False, 750, False],
    [True, 750, False],
    [True, 750, False],
    [True, 750, False],
    [True, 750, False],
    [True, 750, False],
    [True, 730, False],
    [True, 730, False],
    [True, 730, False],
    [True, 730, False],
    [True, 730, False],
    [True, 735, False],
    [True, 750, False]]]],
 [['regression: frost limit steps',
   [{'cool_sp': 750, 'rh_sp': 50, 'max_overcool': 20, 'hum_sp': 45},
    [[700, 30, 25], [700, 33, 29], [700, 36, 30], [700, 36, -5], [700, 10, -40], [700, 30, 55]]],
   [[False, 750, True],
    [False, 750, True],
    [False, 750, True],
    [False, 750, False],
    [False, 750, True],
    [False, 750, False]]],
  ['regression: mild dry day',
   [{'cool_sp': 750, 'rh_sp': 50, 'max_overcool': 20, 'hum_sp': 50},
    [[700, 40, 45], [700, 43, 45], [700, 46, 45], [700, 48, 45]]],
   [[False, 750, True], [False, 750, True], [False, 750, False], [False, 750, False]]],
  ['control: summer then winter',
   [{'cool_sp': 750, 'rh_sp': 50, 'max_overcool': 30, 'hum_sp': 40},
    [[765, 52, 80],
     [762, 58, 80],
     [745, 58, 80],
     [738, 50, 80],
     [700, 25, 10],
     [700, 29, 10],
     [700, 36, 10],
     [700, 10, -15]]],
   [[True, 750, False],
    [True, 720, False],
    [True, 720, False],
    [False, 750, False],
    [False, 750, True],
    [False, 750, True],
    [False, 750, False],
    [False, 750, True]]],
  ['control: dehumidify band',
   [{'cool_sp': 750, 'rh_sp': 50, 'max_overcool': 30, 'hum_sp': 40},
    [[760, 56, 80],
     [752, 53, 80],
     [745, 52, 80],
     [741, 51, 80],
     [741, 50, 80],
     [752, 52, 80],
     [749, 52, 80]]],
   [[True, 720, False],
    [True, 735, False],
    [True, 740, False],
    [False, 745, False],
    [False, 750, False],
    [False, 750, False],
    [False, 750, False]]],
  ['control: cold snap',
   [{'cool_sp': 750, 'rh_sp': 50, 'max_overcool': 20, 'hum_sp': 45},
    [[700, 12, -60], [700, 14, -60], [700, 16, -60], [700, 20, 50], [700, 20, 49]]],
   [[False, 750, False], [False, 750, False], [False, 750, False], [False, 750, False], [False, 750, True]]],
  ['control: scenario 1',
   [{'cool_sp': 750, 'rh_sp': 50, 'max_overcool': 30, 'hum_sp': 35},
    [[760, 30, 52],
     [750, 32, 60],
     [748, 28, 48],
     [744, 33, 44],
     [754, 37, 54],
     [748, 40, 55],
     [758, 39, 61],
     [760, 42, 61],
     [754, 36, 49],
     [742, 30, 44],
     [731, 32, 54],
     [739, 36, 48],
     [733, 36, 54]]],
   [[False, 750, False],
    [False, 750, False],
    [False, 750, True],
    [False, 750, True],
    [False, 750, False],
    [False, 750, False],
    [False, 750, False],
    [False, 750, False],
    [False, 750, False],
    [False, 750, True],
    [False, 750, False],
    [False, 750, False],
    [False, 750, False]]],
  ['control: scenario 2',
   [{'cool_sp': 750, 'rh_sp': 50, 'max_overcool': 30, 'hum_sp': 45},
    [[746, 32, -7],
     [745, 28, -12],
     [741, 24, -18],
     [736, 26, -12],
     [729, 31, 0],
     [720, 32, 7],
     [730, 30, 14],
     [728, 28, 19],
     [725, 23, 17],
     [729, 20, 18],
     [717, 24, 19],
     [715, 19, 10],
     [723, 14, 20],
     [722, 10, 23]]],
   [[False, 750, False],
    [False, 750, False],
    [False, 750, False],
    [False, 750, False],
    [False, 750, False],
    [False, 750, False],
    [False, 750, True],
    [False, 750, True],
    [False, 750, True],
    [False, 750, True],
    [False, 750, True],
    [False, 750, True],
    [False, 750, True],
    [False, 750, True]]],
  ['control: scenario 3',
   [{'cool_sp': 750, 'rh_sp': 50, 'max_overcool': 20, 'hum_sp': 35},
    [[757, 58, 62],
     [767, 52, 71],
     [773, 56, 59],
     [776, 56, 64],
     [765, 59, 59],
     [759, 53, 53],
     [771, 51, 47],
     [775, 55, 38],
     [773, 53, 28],
     [777, 59, 17],
     [785, 57, 9],
     [777, 61, 4]]],
   [[True, 730, False],
    [True, 740, False],
    [True, 730, False],
    [True, 730, False],
    [True, 730, False],
    [True, 735, False],
    [True, 745, False],
    [True, 730, False],
    [True, 735, False],
    [True, 730, False],
    [True, 730, False],
    [True, 730, False]]]],
 [['regression: frost limit steps',
   [{'cool_sp': 750, 'rh_sp': 50, 'max_overcool': 20, 'hum_sp': 45},
    [[700, 30, 25], [700, 33, 29], [700, 36, 30], [700, 36, -5], [700, 10, -40], [700, 30, 55]]],
   [[False, 750, True],
    [False, 750, True],
    [False, 750, True],
    [False, 750, False],
    [False, 750, True],
    [False, 750, False]]],
  ['regression: mild dry day',
   [{'cool_sp': 750, 'rh_sp': 50, 'max_overcool': 20, 'hum_sp': 50},
    [[700, 40, 45], [700, 43, 45], [700, 46, 45], [700, 48, 45]]],
   [[False, 750, True], [False, 750, True], [False, 750, False], [False, 750, False]]],
  ['control: summer then winter',
   [{'cool_sp': 750, 'rh_sp': 50, 'max_overcool': 30, 'hum_sp': 40},
    [[765, 52, 80],
     [762, 58, 80],
     [745, 58, 80],
     [738, 50, 80],
     [700, 25, 10],
     [700, 29, 10],
     [700, 36, 10],
     [700, 10, -15]]],
   [[True, 750, False],
    [True, 720, False],
    [True, 720, False],
    [False, 750, False],
    [False, 750, True],
    [False, 750, True],
    [False, 750, False],
    [False, 750, True]]],
  ['control: dehumidify band',
   [{'cool_sp': 750, 'rh_sp': 50, 'max_overcool': 30, 'hum_sp': 40},
    [[760, 56, 80],
     [752, 53, 80],
     [745, 52, 80],
     [741, 51, 80],
     [741, 50, 80],
     [752, 52, 80],
     [749, 52, 80]]],
   [[True, 720, False],
    [True, 735, False],
    [True, 740, False],
    [False, 745, False],
    [False, 750, False],
    [False, 750, False],
    [False, 750, False]]],
  ['control: cold snap',
   [{'cool_sp': 750, 'rh_sp': 50, 'max_overcool': 20, 'hum_sp': 45},
    [[700, 12, -60], [700, 14, -60], [700, 16, -60], [700, 20, 50], [700, 20, 49]]],
   [[False, 750, False], [False, 750, False], [False, 750, False], [False, 750, False], [False, 750, True]]],
  ['control: scenario 1',
   [{'cool_sp': 750, 'rh_sp': 50, 'max_overcool': 20, 'hum_sp': 50},
    [[741, 41, 9],
     [745, 42, 4],
     [749, 41, 7],
     [737, 37, 8],
     [740, 34, 14],
     [733, 38, 20],
     [730, 44, 9],
     [724, 38, 16],
     [725, 32, 6],
     [721, 27, -4]]],
   [[False, 750, False],
    [False, 750, False],
    [False, 750, False],
    [False, 750, False],
    [False, 750, False],
    [False, 750, False],
    [False, 750, False],
    [False, 750, False],
    [False, 750, False],
    [False, 750, False]]],
  ['control: scenario 2',
   [{'cool_sp': 750, 'rh_sp': 50, 'max_overcool': 20, 'hum_sp': 50},
    [[755, 29, 22],
     [752, 27, 11],
     [752, 25, 3],
     [763, 20, -7],
     [756, 25, -6],
     [766, 23, -4],
     [768, 25, 5],
     [774, 26, 7],
     [781, 22, -4]]],
   [[False, 750, True],
    [False, 750, True],
    [False, 750, True],
    [True, 750, True],
    [True, 750, False],
    [True, 750, False],
    [True, 750, True],
    [True, 750, True],
    [True, 750, True]]],
  ['control: scenario 3',
   [{'cool_sp': 750, 'rh_sp': 50, 'max_overcool': 20, 'hum_sp': 45},
    [[761, 42, -7],
     [772, 41, 1],
     [768, 39, 5],
     [769, 39, -1],
     [759, 38, 1],
     [759, 43, -3],
     [764, 37, -15],
     [772, 40, -24],
     [779, 41, -30],
     [778, 45, -30],
     [772, 46, -30],
     [780, 40, -29],
     [771, 43, -30],
     [780, 40, -27]]],
   [[True, 750, False],
    [True, 750, False],
    [True, 750, False],
    [True, 750, False],
    [True, 750, False],
    [True, 750, False],
    [True, 750, False],
    [True, 750, False],
    [True, 750, False],
    [True, 750, False],
    [True, 750, False],
    [True, 750, False],
    [True, 750, False],
    [True, 750, False]]]],
 [['regression: frost limit steps',
   [{'cool_sp': 750, 'rh_sp': 50, 'max_overcool': 20, 'hum_sp': 45},
    [[700, 30, 25], [700, 33, 29], [700, 36, 30], [700, 36, -5], [700, 10, -40], [700, 30, 55]]],
   [[False, 750, True],
    [False, 750, True],
    [False, 750, True],
    [False, 750, False],
    [False, 750, True],
    [False, 750, False]]],
  ['regression: mild dry day',
   [{'cool_sp': 750, 'rh_sp': 50, 'max_overcool': 20, 'hum_sp': 50},
    [[700, 40, 45], [700, 43, 45], [700, 46, 45], [700, 48, 45]]],
   [[False, 750, True], [False, 750, True], [False, 750, False], [False, 750, False]]],
  ['control: summer then winter',
   [{'cool_sp': 750, 'rh_sp': 50, 'max_overcool': 30, 'hum_sp': 40},
    [[765, 52, 80],
     [762, 58, 80],
     [745, 58, 80],
     [738, 50, 80],
     [700, 25, 10],
     [700, 29, 10],
     [700, 36, 10],
     [700, 10, -15]]],
   [[True, 750, False],
    [True, 720, False],
    [True, 720, False],
    [False, 750, False],
    [False, 750, True],
    [False, 750, True],
    [False, 750, False],
    [False, 750, True]]],
  ['control: dehumidify band',
   [{'cool_sp': 750, 'rh_sp': 50, 'max_overcool': 30, 'hum_sp': 40},
    [[760, 56, 80],
     [752, 53, 80],
     [745, 52, 80],
     [741, 51, 80],
     [741, 50, 80],
     [752, 52, 80],
     [749, 52, 80]]],
   [[True, 720, False],
    [True, 735, False],
    [True, 740, False],
    [False, 745, False],
    [False, 750, False],
    [False, 750, False],
    [False, 750, False]]],
  ['control: cold snap',
   [{'cool_sp': 750, 'rh_sp': 50, 'max_overcool': 20, 'hum_sp': 45},
    [[700, 12, -60], [700, 14, -60], [700, 16, -60], [700, 20, 50], [700, 20, 49]]],
   [[False, 750, False], [False, 750, False], [False, 750, False], [False, 750, False], [False, 750, True]]],
  ['control: scenario 1',
   [{'cool_sp': 750, 'rh_sp': 50, 'max_overcool': 20, 'hum_sp': 35},
    [[755, 53, 26],
     [756, 54, 25],
     [766, 54, 30],
     [774, 48, 25],
     [783, 43, 35],
     [778, 37, 35],
     [777, 33, 39],
     [784, 35, 49],
     [779, 31, 39],
     [788, 27, 45],
     [778, 31, 42],
     [779, 31, 44],
     [789, 36, 51]]],
   [[False, 750, False],
    [False, 750, False],
    [True, 750, False],
    [True, 750, False],
    [True, 750, False],
    [True, 750, False],
    [True, 750, False],
    [True, 750, False],
    [True, 750, True],
    [True, 750, True],
    [True, 750, True],
    [True, 750, True],
    [True, 750, False]]],
  ['control: scenario 2',
   [{'cool_sp': 750, 'rh_sp': 50, 'max_overcool': 30, 'hum_sp': 45},
    [[759, 30, 36],
     [770, 33, 36],
     [759, 34, 36],
     [752, 33, 36],
     [754, 27, 25],
     [764, 25, 15],
     [772, 25, 26],
     [784, 19, 22],
     [790, 21, 21]]],
   [[False, 750, True],
    [True, 750, True],
    [True, 750, True],
    [True, 750, True],
    [True, 750, True],
    [True, 750, True],
    [True, 750, True],
    [True, 750, True],
    [True, 750, True]]],
  ['control: scenario 3',
   [{'cool_sp': 750, 'rh_sp': 50, 'max_overcool': 20, 'hum_sp': 45},
    [[758, 47, 40],
     [762, 48, 47],
     [771, 44, 41],
     [782, 45, 36],
     [790, 48, 36],
     [787, 45, 25],
     [790, 40, 20],
     [790, 38, 12],
     [790, 35, 17],
     [787, 40, 13],
     [780, 36, 2],
     [774, 40, 1],
     [786, 44, 1],
     [778, 39, 11]]],
   [[False, 750, False],
    [True, 750, False],
    [True, 750, False],
    [True, 750, False],
    [True, 750, False],
    [True, 750, False],
    [True, 750, False],
    [True, 750, False],
    [True, 750, False],
    [True, 750, False],
    [True, 750, False],
    [True, 750, False],
    [True, 750, False],
    [True, 750, False]]]]]
for label, args, expected in fixtures[N-1]:
    check(label, solve(*args), expected)
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
regression: frost limit steps	`[[False, 750, True], [False, 750, True], [False, 750, True], [False, 750, False], [False, 750, False], [False, 750, False]]`	`[[False, 750, True], [False, 750, True], [False, 750, True], [False, 750, False], [False, 750, True], [False, 750, False]]`	Failed
regression: mild dry day	`[[False, 750, True], [False, 750, True], [False, 750, False], [False, 750, False]]`	`[[False, 750, True], [False, 750, True], [False, 750, False], [False, 750, False]]`	Passed
control: summer then winter	`[[True, 750, False], [True, 720, False], [True, 720, False], [False, 750, False], [False, 750, True], [False, 750, True], [False, 750, False], [False, 750, True]]`	`[[True, 750, False], [True, 720, False], [True, 720, False], [False, 750, False], [False, 750, True], [False, 750, True], [False, 750, False], [False, 750, True]]`	Passed
control: dehumidify band	`[[True, 720, False], [True, 735, False], [True, 740, False], [False, 745, False], [False, 750, False], [False, 750, False], [False, 750, False]]`	`[[True, 720, False], [True, 735, False], [True, 740, False], [False, 745, False], [False, 750, False], [False, 750, False], [False, 750, False]]`	Passed
control: cold snap	`[[False, 750, False], [False, 750, False], [False, 750, False], [False, 750, False], [False, 750, True]]`	`[[False, 750, False], [False, 750, False], [False, 750, False], [False, 750, False], [False, 750, True]]`	Passed
control: scenario 1	`[[False, 750, False], [False, 750, False], [False, 750, False], [False, 750, False], [False, 750, False], [False, 750, False], [False, 750, False], [False, 750, False], [False, 750, False], [False, 750, False]]`	`[[False, 750, False], [False, 750, False], [False, 750, False], [False, 750, False], [False, 750, False], [False, 750, False], [False, 750, False], [False, 750, False], [False, 750, False], [False, 750, False]]`	Passed
control: scenario 2	`[[True, 750, True], [True, 750, True], [True, 750, True], [True, 750, True], [True, 750, True], [True, 750, True], [True, 750, True], [True, 750, True], [True, 750, True], [True, 750, True], [True, 750, True], [True, 750, True], [True, 750, True], [True, 750, False]]`	`[[True, 750, True], [True, 750, True], [True, 750, True], [True, 750, True], [True, 750, True], [True, 750, True], [True, 750, True], [True, 750, True], [True, 750, True], [True, 750, True], [True, 750, True], [True, 750, True], [True, 750, True], [True, 750, False]]`	Passed
control: scenario 3	`[[False, 750, True], [False, 750, False], [False, 750, False], [False, 750, False], [False, 750, False], [False, 750, True], [False, 750, False], [False, 750, False], [False, 750, False], [False, 750, False], [False, 750, False], [False, 750, False], [False, 750, False], [False, 750, False]]`	`[[False, 750, True], [False, 750, False], [False, 750, False], [False, 750, False], [False, 750, False], [False, 750, True], [False, 750, False], [False, 750, False], [False, 750, False], [False, 750, False], [False, 750, False], [False, 750, False], [False, 750, False], [False, 750, False]]`	Passed

SHA-256 / c8342343945ddff5a2c5ab920e0dbe6b6d93844bd073a5283b0525f3f1aa0481

2 / The unsuccessful fix

Exit 1

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

N = 1
observations = []
def solve(settings, samples):
    dehum = False
    cooling = False
    humid = False
    out = []
    for temp, rh, outdoor in samples:
        if dehum and rh <= settings['rh_sp']:
            dehum = False
        elif not dehum and rh > settings['rh_sp'] + 5:
            dehum = True
        eff = settings['cool_sp']
        if dehum:
            eff -= min(settings['max_overcool'], (rh - settings['rh_sp']) * 5)
        if cooling and temp <= eff:
            cooling = False
        elif not cooling and temp > eff + 10:
            cooling = True
        allowed = max(15, 40 + (outdoor - 20) // 10 * 5)
        target = min(settings['hum_sp'], allowed)
        if outdoor >= 50:
            humid = False
        elif humid and rh >= target:
            humid = False
        elif not humid and rh < target - 3:
            humid = True
        out.append([cooling, eff, humid])
    return out
def check(label, actual, expected):
    observations.append({"check": label, "actual": actual, "expected": expected, "passed": actual == expected})
fixtures = [[['regression: frost limit steps',
   [{'cool_sp': 750, 'rh_sp': 50, 'max_overcool': 20, 'hum_sp': 45},
    [[700, 30, 25], [700, 33, 29], [700, 36, 30], [700, 36, -5], [700, 10, -40], [700, 30, 55]]],
   [[False, 750, True],
    [False, 750, True],
    [False, 750, True],
    [False, 750, False],
    [False, 750, True],
    [False, 750, False]]],
  ['regression: mild dry day',
   [{'cool_sp': 750, 'rh_sp': 50, 'max_overcool': 20, 'hum_sp': 50},
    [[700, 40, 45], [700, 43, 45], [700, 46, 45], [700, 48, 45]]],
   [[False, 750, True], [False, 750, True], [False, 750, False], [False, 750, False]]],
  ['control: summer then winter',
   [{'cool_sp': 750, 'rh_sp': 50, 'max_overcool': 30, 'hum_sp': 40},
    [[765, 52, 80],
     [762, 58, 80],
     [745, 58, 80],
     [738, 50, 80],
     [700, 25, 10],
     [700, 29, 10],
     [700, 36, 10],
     [700, 10, -15]]],
   [[True, 750, False],
    [True, 720, False],
    [True, 720, False],
    [False, 750, False],
    [False, 750, True],
    [False, 750, True],
    [False, 750, False],
    [False, 750, True]]],
  ['control: dehumidify band',
   [{'cool_sp': 750, 'rh_sp': 50, 'max_overcool': 30, 'hum_sp': 40},
    [[760, 56, 80],
     [752, 53, 80],
     [745, 52, 80],
     [741, 51, 80],
     [741, 50, 80],
     [752, 52, 80],
     [749, 52, 80]]],
   [[True, 720, False],
    [True, 735, False],
    [True, 740, False],
    [False, 745, False],
    [False, 750, False],
    [False, 750, False],
    [False, 750, False]]],
  ['control: cold snap',
   [{'cool_sp': 750, 'rh_sp': 50, 'max_overcool': 20, 'hum_sp': 45},
    [[700, 12, -60], [700, 14, -60], [700, 16, -60], [700, 20, 50], [700, 20, 49]]],
   [[False, 750, False], [False, 750, False], [False, 750, False], [False, 750, False], [False, 750, True]]],
  ['control: scenario 1',
   [{'cool_sp': 750, 'rh_sp': 50, 'max_overcool': 30, 'hum_sp': 40},
    [[738, 41, 24],
     [734, 38, 21],
     [725, 33, 9],
     [726, 34, -2],
     [733, 39, 7],
     [743, 36, 7],
     [740, 38, 7],
     [752, 32, 19],
     [742, 34, 11],
     [732, 32, 9]]],
   [[False, 750, False],
    [False, 750, False],
    [False, 750, False],
    [False, 750, False],
    [False, 750, False],
    [False, 750, False],
    [False, 750, False],
    [False, 750, False],
    [False, 750, False],
    [False, 750, False]]],
  ['control: scenario 2',
   [{'cool_sp': 750, 'rh_sp': 50, 'max_overcool': 30, 'hum_sp': 40},
    [[762, 20, -5],
     [767, 18, -6],
     [764, 13, -16],
     [765, 11, -12],
     [758, 10, -15],
     [757, 16, -3],
     [761, 16, 7],
     [758, 10, 13],
     [765, 10, 16],
     [763, 13, 12],
     [775, 16, 9],
     [765, 18, 4],
     [755, 20, 3],
     [754, 25, -3]]],
   [[True, 750, True],
    [True, 750, True],
    [True, 750, True],
    [True, 750, True],
    [True, 750, True],
    [True, 750, True],
    [True, 750, True],
    [True, 750, True],
    [True, 750, True],
    [True, 750, True],
    [True, 750, True],
    [True, 750, True],
    [True, 750, True],
    [True, 750, False]]],
  ['control: scenario 3',
   [{'cool_sp': 750, 'rh_sp': 50, 'max_overcool': 30, 'hum_sp': 45},
    [[741, 31, 49],
     [750, 36, 55],
     [739, 36, 59],
     [734, 34, 55],
     [728, 33, 56],
     [717, 35, 48],
     [715, 34, 60],
     [726, 38, 57],
     [726, 39, 57],
     [719, 34, 54],
     [726, 39, 57],
     [729, 41, 61],
     [732, 39, 66],
     [743, 40, 75]]],
   [[False, 750, True],
    [False, 750, False],
    [False, 750, False],
    [False, 750, False],
    [False, 750, False],
    [False, 750, True],
    [False, 750, False],
    [False, 750, False],
    [False, 750, False],
    [False, 750, False],
    [False, 750, False],
    [False, 750, False],
    [False, 750, False],
    [False, 750, False]]]],
 [['regression: frost limit steps',
   [{'cool_sp': 750, 'rh_sp': 50, 'max_overcool': 20, 'hum_sp': 45},
    [[700, 30, 25], [700, 33, 29], [700, 36, 30], [700, 36, -5], [700, 10, -40], [700, 30, 55]]],
   [[False, 750, True],
    [False, 750, True],
    [False, 750, True],
    [False, 750, False],
    [False, 750, True],
    [False, 750, False]]],
  ['regression: scenario 28',
   [{'cool_sp': 750, 'rh_sp': 50, 'max_overcool': 30, 'hum_sp': 50},
    [[757, 49, 37],
     [765, 45, 47],
     [753, 39, 59],
     [747, 34, 56],
     [751, 39, 66],
     [748, 35, 68],
     [754, 40, 59],
     [757, 41, 50],
     [755, 42, 54],
     [752, 46, 56],
     [748, 51, 67],
     [738, 51, 79],
     [739, 52, 77]]],
   [[False, 750, False],
    [True, 750, False],
    [True, 750, False],
    [False, 750, False],
    [False, 750, False],
    [False, 750, False],
    [False, 750, False],
    [False, 750, False],
    [False, 750, False],
    [False, 750, False],
    [False, 750, False],
    [False, 750, False],
    [False, 750, False]]],
  ['control: summer then winter',
   [{'cool_sp': 750, 'rh_sp': 50, 'max_overcool': 30, 'hum_sp': 40},
    [[765, 52, 80],
     [762, 58, 80],
     [745, 58, 80],
     [738, 50, 80],
     [700, 25, 10],
     [700, 29, 10],
     [700, 36, 10],
     [700, 10, -15]]],
   [[True, 750, False],
    [True, 720, False],
    [True, 720, False],
    [False, 750, False],
    [False, 750, True],
    [False, 750, True],
    [False, 750, False],
    [False, 750, True]]],
  ['control: dehumidify band',
   [{'cool_sp': 750, 'rh_sp': 50, 'max_overcool': 30, 'hum_sp': 40},
    [[760, 56, 80],
     [752, 53, 80],
     [745, 52, 80],
     [741, 51, 80],
     [741, 50, 80],
     [752, 52, 80],
     [749, 52, 80]]],
   [[True, 720, False],
    [True, 735, False],
    [True, 740, False],
    [False, 745, False],
    [False, 750, False],
    [False, 750, False],
    [False, 750, False]]],
  ['regression: mild dry day',
   [{'cool_sp': 750, 'rh_sp': 50, 'max_overcool': 20, 'hum_sp': 50},
    [[700, 40, 45], [700, 43, 45], [700, 46, 45], [700, 48, 45]]],
   [[False, 750, True], [False, 750, True], [False, 750, False], [False, 750, False]]],
  ['control: cold snap',
   [{'cool_sp': 750, 'rh_sp': 50, 'max_overcool': 20, 'hum_sp': 45},
    [[700, 12, -60], [700, 14, -60], [700, 16, -60], [700, 20, 50], [700, 20, 49]]],
   [[False, 750, False], [False, 750, False], [False, 750, False], [False, 750, False], [False, 750, True]]],
  ['control: scenario 1',
   [{'cool_sp': 750, 'rh_sp': 50, 'max_overcool': 30, 'hum_sp': 40},
    [[741, 58, -1],
     [736, 54, -9],
     [726, 56, 2],
     [715, 54, 0],
     [721, 55, 1],
     [732, 51, -1],
     [731, 51, -7],
     [727, 55, -12],
     [721, 57, -12]]],
   [[True, 720, False],
    [True, 730, False],
    [True, 720, False],
    [False, 730, False],
    [False, 725, False],
    [False, 745, False],
    [False, 745, False],
    [False, 725, False],
    [False, 720, False]]],
  ['control: scenario 2',
   [{'cool_sp': 750, 'rh_sp': 50, 'max_overcool': 20, 'hum_sp': 40},
    [[749, 37, 58],
     [756, 33, 55],
     [768, 38, 65],
     [771, 41, 72],
     [780, 47, 71],
     [774, 50, 64],
     [770, 54, 73],
     [777, 59, 73],
     [786, 63, 85],
     [788, 59, 90],
     [790, 61, 90],
     [782, 58, 85],
     [790, 53, 80],
     [790, 48, 82]]],
   [[False, 750, False],
    [False, 750, False],
    [True, 750, False],
    [True, 750, False],
    [True, 750, False],
    [True, 750, False],
    [True, 750, False],
    [True, 730, False],
    [True, 730, False],
    [True, 730, False],
    [True, 730, False],
    [True, 730, False],
    [True, 735, False],
    [True, 750, False]]]],
 [['regression: frost limit steps',
   [{'cool_sp': 750, 'rh_sp': 50, 'max_overcool': 20, 'hum_sp': 45},
    [[700, 30, 25], [700, 33, 29], [700, 36, 30], [700, 36, -5], [700, 10, -40], [700, 30, 55]]],
   [[False, 750, True],
    [False, 750, True],
    [False, 750, True],
    [False, 750, False],
    [False, 750, True],
    [False, 750, False]]],
  ['regression: mild dry day',
   [{'cool_sp': 750, 'rh_sp': 50, 'max_overcool': 20, 'hum_sp': 50},
    [[700, 40, 45], [700, 43, 45], [700, 46, 45], [700, 48, 45]]],
   [[False, 750, True], [False, 750, True], [False, 750, False], [False, 750, False]]],
  ['control: summer then winter',
   [{'cool_sp': 750, 'rh_sp': 50, 'max_overcool': 30, 'hum_sp': 40},
    [[765, 52, 80],
     [762, 58, 80],
     [745, 58, 80],
     [738, 50, 80],
     [700, 25, 10],
     [700, 29, 10],
     [700, 36, 10],
     [700, 10, -15]]],
   [[True, 750, False],
    [True, 720, False],
    [True, 720, False],
    [False, 750, False],
    [False, 750, True],
    [False, 750, True],
    [False, 750, False],
    [False, 750, True]]],
  ['control: dehumidify band',
   [{'cool_sp': 750, 'rh_sp': 50, 'max_overcool': 30, 'hum_sp': 40},
    [[760, 56, 80],
     [752, 53, 80],
     [745, 52, 80],
     [741, 51, 80],
     [741, 50, 80],
     [752, 52, 80],
     [749, 52, 80]]],
   [[True, 720, False],
    [True, 735, False],
    [True, 740, False],
    [False, 745, False],
    [False, 750, False],
    [False, 750, False],
    [False, 750, False]]],
  ['control: cold snap',
   [{'cool_sp': 750, 'rh_sp': 50, 'max_overcool': 20, 'hum_sp': 45},
    [[700, 12, -60], [700, 14, -60], [700, 16, -60], [700, 20, 50], [700, 20, 49]]],
   [[False, 750, False], [False, 750, False], [False, 750, False], [False, 750, False], [False, 750, True]]],
  ['control: scenario 1',
   [{'cool_sp': 750, 'rh_sp': 50, 'max_overcool': 30, 'hum_sp': 35},
    [[760, 30, 52],
     [750, 32, 60],
     [748, 28, 48],
     [744, 33, 44],
     [754, 37, 54],
     [748, 40, 55],
     [758, 39, 61],
     [760, 42, 61],
     [754, 36, 49],
     [742, 30, 44],
     [731, 32, 54],
     [739, 36, 48],
     [733, 36, 54]]],
   [[False, 750, False],
    [False, 750, False],
    [False, 750, True],
    [False, 750, True],
    [False, 750, False],
    [False, 750, False],
    [False, 750, False],
    [False, 750, False],
    [False, 750, False],
    [False, 750, True],
    [False, 750, False],
    [False, 750, False],
    [False, 750, False]]],
  ['control: scenario 2',
   [{'cool_sp': 750, 'rh_sp': 50, 'max_overcool': 30, 'hum_sp': 45},
    [[746, 32, -7],
     [745, 28, -12],
     [741, 24, -18],
     [736, 26, -12],
     [729, 31, 0],
     [720, 32, 7],
     [730, 30, 14],
     [728, 28, 19],
     [725, 23, 17],
     [729, 20, 18],
     [717, 24, 19],
     [715, 19, 10],
     [723, 14, 20],
     [722, 10, 23]]],
   [[False, 750, False],
    [False, 750, False],
    [False, 750, False],
    [False, 750, False],
    [False, 750, False],
    [False, 750, False],
    [False, 750, True],
    [False, 750, True],
    [False, 750, True],
    [False, 750, True],
    [False, 750, True],
    [False, 750, True],
    [False, 750, True],
    [False, 750, True]]],
  ['control: scenario 3',
   [{'cool_sp': 750, 'rh_sp': 50, 'max_overcool': 20, 'hum_sp': 35},
    [[757, 58, 62],
     [767, 52, 71],
     [773, 56, 59],
     [776, 56, 64],
     [765, 59, 59],
     [759, 53, 53],
     [771, 51, 47],
     [775, 55, 38],
     [773, 53, 28],
     [777, 59, 17],
     [785, 57, 9],
     [777, 61, 4]]],
   [[True, 730, False],
    [True, 740, False],
    [True, 730, False],
    [True, 730, False],
    [True, 730, False],
    [True, 735, False],
    [True, 745, False],
    [True, 730, False],
    [True, 735, False],
    [True, 730, False],
    [True, 730, False],
    [True, 730, False]]]],
 [['regression: frost limit steps',
   [{'cool_sp': 750, 'rh_sp': 50, 'max_overcool': 20, 'hum_sp': 45},
    [[700, 30, 25], [700, 33, 29], [700, 36, 30], [700, 36, -5], [700, 10, -40], [700, 30, 55]]],
   [[False, 750, True],
    [False, 750, True],
    [False, 750, True],
    [False, 750, False],
    [False, 750, True],
    [False, 750, False]]],
  ['regression: mild dry day',
   [{'cool_sp': 750, 'rh_sp': 50, 'max_overcool': 20, 'hum_sp': 50},
    [[700, 40, 45], [700, 43, 45], [700, 46, 45], [700, 48, 45]]],
   [[False, 750, True], [False, 750, True], [False, 750, False], [False, 750, False]]],
  ['control: summer then winter',
   [{'cool_sp': 750, 'rh_sp': 50, 'max_overcool': 30, 'hum_sp': 40},
    [[765, 52, 80],
     [762, 58, 80],
     [745, 58, 80],
     [738, 50, 80],
     [700, 25, 10],
     [700, 29, 10],
     [700, 36, 10],
     [700, 10, -15]]],
   [[True, 750, False],
    [True, 720, False],
    [True, 720, False],
    [False, 750, False],
    [False, 750, True],
    [False, 750, True],
    [False, 750, False],
    [False, 750, True]]],
  ['control: dehumidify band',
   [{'cool_sp': 750, 'rh_sp': 50, 'max_overcool': 30, 'hum_sp': 40},
    [[760, 56, 80],
     [752, 53, 80],
     [745, 52, 80],
     [741, 51, 80],
     [741, 50, 80],
     [752, 52, 80],
     [749, 52, 80]]],
   [[True, 720, False],
    [True, 735, False],
    [True, 740, False],
    [False, 745, False],
    [False, 750, False],
    [False, 750, False],
    [False, 750, False]]],
  ['control: cold snap',
   [{'cool_sp': 750, 'rh_sp': 50, 'max_overcool': 20, 'hum_sp': 45},
    [[700, 12, -60], [700, 14, -60], [700, 16, -60], [700, 20, 50], [700, 20, 49]]],
   [[False, 750, False], [False, 750, False], [False, 750, False], [False, 750, False], [False, 750, True]]],
  ['control: scenario 1',
   [{'cool_sp': 750, 'rh_sp': 50, 'max_overcool': 20, 'hum_sp': 50},
    [[741, 41, 9],
     [745, 42, 4],
     [749, 41, 7],
     [737, 37, 8],
     [740, 34, 14],
     [733, 38, 20],
     [730, 44, 9],
     [724, 38, 16],
     [725, 32, 6],
     [721, 27, -4]]],
   [[False, 750, False],
    [False, 750, False],
    [False, 750, False],
    [False, 750, False],
    [False, 750, False],
    [False, 750, False],
    [False, 750, False],
    [False, 750, False],
    [False, 750, False],
    [False, 750, False]]],
  ['control: scenario 2',
   [{'cool_sp': 750, 'rh_sp': 50, 'max_overcool': 20, 'hum_sp': 50},
    [[755, 29, 22],
     [752, 27, 11],
     [752, 25, 3],
     [763, 20, -7],
     [756, 25, -6],
     [766, 23, -4],
     [768, 25, 5],
     [774, 26, 7],
     [781, 22, -4]]],
   [[False, 750, True],
    [False, 750, True],
    [False, 750, True],
    [True, 750, True],
    [True, 750, False],
    [True, 750, False],
    [True, 750, True],
    [True, 750, True],
    [True, 750, True]]],
  ['control: scenario 3',
   [{'cool_sp': 750, 'rh_sp': 50, 'max_overcool': 20, 'hum_sp': 45},
    [[761, 42, -7],
     [772, 41, 1],
     [768, 39, 5],
     [769, 39, -1],
     [759, 38, 1],
     [759, 43, -3],
     [764, 37, -15],
     [772, 40, -24],
     [779, 41, -30],
     [778, 45, -30],
     [772, 46, -30],
     [780, 40, -29],
     [771, 43, -30],
     [780, 40, -27]]],
   [[True, 750, False],
    [True, 750, False],
    [True, 750, False],
    [True, 750, False],
    [True, 750, False],
    [True, 750, False],
    [True, 750, False],
    [True, 750, False],
    [True, 750, False],
    [True, 750, False],
    [True, 750, False],
    [True, 750, False],
    [True, 750, False],
    [True, 750, False]]]],
 [['regression: frost limit steps',
   [{'cool_sp': 750, 'rh_sp': 50, 'max_overcool': 20, 'hum_sp': 45},
    [[700, 30, 25], [700, 33, 29], [700, 36, 30], [700, 36, -5], [700, 10, -40], [700, 30, 55]]],
   [[False, 750, True],
    [False, 750, True],
    [False, 750, True],
    [False, 750, False],
    [False, 750, True],
    [False, 750, False]]],
  ['regression: mild dry day',
   [{'cool_sp': 750, 'rh_sp': 50, 'max_overcool': 20, 'hum_sp': 50},
    [[700, 40, 45], [700, 43, 45], [700, 46, 45], [700, 48, 45]]],
   [[False, 750, True], [False, 750, True], [False, 750, False], [False, 750, False]]],
  ['control: summer then winter',
   [{'cool_sp': 750, 'rh_sp': 50, 'max_overcool': 30, 'hum_sp': 40},
    [[765, 52, 80],
     [762, 58, 80],
     [745, 58, 80],
     [738, 50, 80],
     [700, 25, 10],
     [700, 29, 10],
     [700, 36, 10],
     [700, 10, -15]]],
   [[True, 750, False],
    [True, 720, False],
    [True, 720, False],
    [False, 750, False],
    [False, 750, True],
    [False, 750, True],
    [False, 750, False],
    [False, 750, True]]],
  ['control: dehumidify band',
   [{'cool_sp': 750, 'rh_sp': 50, 'max_overcool': 30, 'hum_sp': 40},
    [[760, 56, 80],
     [752, 53, 80],
     [745, 52, 80],
     [741, 51, 80],
     [741, 50, 80],
     [752, 52, 80],
     [749, 52, 80]]],
   [[True, 720, False],
    [True, 735, False],
    [True, 740, False],
    [False, 745, False],
    [False, 750, False],
    [False, 750, False],
    [False, 750, False]]],
  ['control: cold snap',
   [{'cool_sp': 750, 'rh_sp': 50, 'max_overcool': 20, 'hum_sp': 45},
    [[700, 12, -60], [700, 14, -60], [700, 16, -60], [700, 20, 50], [700, 20, 49]]],
   [[False, 750, False], [False, 750, False], [False, 750, False], [False, 750, False], [False, 750, True]]],
  ['control: scenario 1',
   [{'cool_sp': 750, 'rh_sp': 50, 'max_overcool': 20, 'hum_sp': 35},
    [[755, 53, 26],
     [756, 54, 25],
     [766, 54, 30],
     [774, 48, 25],
     [783, 43, 35],
     [778, 37, 35],
     [777, 33, 39],
     [784, 35, 49],
     [779, 31, 39],
     [788, 27, 45],
     [778, 31, 42],
     [779, 31, 44],
     [789, 36, 51]]],
   [[False, 750, False],
    [False, 750, False],
    [True, 750, False],
    [True, 750, False],
    [True, 750, False],
    [True, 750, False],
    [True, 750, False],
    [True, 750, False],
    [True, 750, True],
    [True, 750, True],
    [True, 750, True],
    [True, 750, True],
    [True, 750, False]]],
  ['control: scenario 2',
   [{'cool_sp': 750, 'rh_sp': 50, 'max_overcool': 30, 'hum_sp': 45},
    [[759, 30, 36],
     [770, 33, 36],
     [759, 34, 36],
     [752, 33, 36],
     [754, 27, 25],
     [764, 25, 15],
     [772, 25, 26],
     [784, 19, 22],
     [790, 21, 21]]],
   [[False, 750, True],
    [True, 750, True],
    [True, 750, True],
    [True, 750, True],
    [True, 750, True],
    [True, 750, True],
    [True, 750, True],
    [True, 750, True],
    [True, 750, True]]],
  ['control: scenario 3',
   [{'cool_sp': 750, 'rh_sp': 50, 'max_overcool': 20, 'hum_sp': 45},
    [[758, 47, 40],
     [762, 48, 47],
     [771, 44, 41],
     [782, 45, 36],
     [790, 48, 36],
     [787, 45, 25],
     [790, 40, 20],
     [790, 38, 12],
     [790, 35, 17],
     [787, 40, 13],
     [780, 36, 2],
     [774, 40, 1],
     [786, 44, 1],
     [778, 39, 11]]],
   [[False, 750, False],
    [True, 750, False],
    [True, 750, False],
    [True, 750, False],
    [True, 750, False],
    [True, 750, False],
    [True, 750, False],
    [True, 750, False],
    [True, 750, False],
    [True, 750, False],
    [True, 750, False],
    [True, 750, False],
    [True, 750, False],
    [True, 750, False]]]]]
for label, args, expected in fixtures[N-1]:
    check(label, solve(*args), expected)
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
regression: frost limit steps	`[[False, 750, True], [False, 750, True], [False, 750, True], [False, 750, False], [False, 750, True], [False, 750, False]]`	`[[False, 750, True], [False, 750, True], [False, 750, True], [False, 750, False], [False, 750, True], [False, 750, False]]`	Passed
regression: mild dry day	`[[False, 750, True], [False, 750, True], [False, 750, True], [False, 750, True]]`	`[[False, 750, True], [False, 750, True], [False, 750, False], [False, 750, False]]`	Failed
control: summer then winter	`[[True, 750, False], [True, 720, False], [True, 720, False], [False, 750, False], [False, 750, True], [False, 750, True], [False, 750, False], [False, 750, True]]`	`[[True, 750, False], [True, 720, False], [True, 720, False], [False, 750, False], [False, 750, True], [False, 750, True], [False, 750, False], [False, 750, True]]`	Passed
control: dehumidify band	`[[True, 720, False], [True, 735, False], [True, 740, False], [False, 745, False], [False, 750, False], [False, 750, False], [False, 750, False]]`	`[[True, 720, False], [True, 735, False], [True, 740, False], [False, 745, False], [False, 750, False], [False, 750, False], [False, 750, False]]`	Passed
control: cold snap	`[[False, 750, False], [False, 750, False], [False, 750, False], [False, 750, False], [False, 750, True]]`	`[[False, 750, False], [False, 750, False], [False, 750, False], [False, 750, False], [False, 750, True]]`	Passed
control: scenario 1	`[[False, 750, False], [False, 750, False], [False, 750, False], [False, 750, False], [False, 750, False], [False, 750, False], [False, 750, False], [False, 750, False], [False, 750, False], [False, 750, False]]`	`[[False, 750, False], [False, 750, False], [False, 750, False], [False, 750, False], [False, 750, False], [False, 750, False], [False, 750, False], [False, 750, False], [False, 750, False], [False, 750, False]]`	Passed
control: scenario 2	`[[True, 750, True], [True, 750, True], [True, 750, True], [True, 750, True], [True, 750, True], [True, 750, True], [True, 750, True], [True, 750, True], [True, 750, True], [True, 750, True], [True, 750, True], [True, 750, True], [True, 750, True], [True, 750, False]]`	`[[True, 750, True], [True, 750, True], [True, 750, True], [True, 750, True], [True, 750, True], [True, 750, True], [True, 750, True], [True, 750, True], [True, 750, True], [True, 750, True], [True, 750, True], [True, 750, True], [True, 750, True], [True, 750, False]]`	Passed
control: scenario 3	`[[False, 750, True], [False, 750, False], [False, 750, False], [False, 750, False], [False, 750, False], [False, 750, True], [False, 750, False], [False, 750, False], [False, 750, False], [False, 750, False], [False, 750, False], [False, 750, False], [False, 750, False], [False, 750, False]]`	`[[False, 750, True], [False, 750, False], [False, 750, False], [False, 750, False], [False, 750, False], [False, 750, True], [False, 750, False], [False, 750, False], [False, 750, False], [False, 750, False], [False, 750, False], [False, 750, False], [False, 750, False], [False, 750, False]]`	Passed

SHA-256 / 89715f9d36c5f8a54759d959c8cfb2a31aa24ac3bd70a16b806b5bbb05447585

3 / The verified repair

Exit 0

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

N = 1
observations = []
def solve(settings, samples):
    dehum = False
    cooling = False
    humid = False
    out = []
    for temp, rh, outdoor in samples:
        if dehum and rh <= settings['rh_sp']:
            dehum = False
        elif not dehum and rh > settings['rh_sp'] + 5:
            dehum = True
        eff = settings['cool_sp']
        if dehum:
            eff -= min(settings['max_overcool'], (rh - settings['rh_sp']) * 5)
        if cooling and temp <= eff:
            cooling = False
        elif not cooling and temp > eff + 10:
            cooling = True
        allowed = max(15, min(45, 40 + (outdoor - 20) // 10 * 5))
        target = min(settings['hum_sp'], allowed)
        if outdoor >= 50:
            humid = False
        elif humid and rh >= target:
            humid = False
        elif not humid and rh < target - 3:
            humid = True
        out.append([cooling, eff, humid])
    return out
def check(label, actual, expected):
    observations.append({"check": label, "actual": actual, "expected": expected, "passed": actual == expected})
fixtures = [[['regression: frost limit steps',
   [{'cool_sp': 750, 'rh_sp': 50, 'max_overcool': 20, 'hum_sp': 45},
    [[700, 30, 25], [700, 33, 29], [700, 36, 30], [700, 36, -5], [700, 10, -40], [700, 30, 55]]],
   [[False, 750, True],
    [False, 750, True],
    [False, 750, True],
    [False, 750, False],
    [False, 750, True],
    [False, 750, False]]],
  ['regression: mild dry day',
   [{'cool_sp': 750, 'rh_sp': 50, 'max_overcool': 20, 'hum_sp': 50},
    [[700, 40, 45], [700, 43, 45], [700, 46, 45], [700, 48, 45]]],
   [[False, 750, True], [False, 750, True], [False, 750, False], [False, 750, False]]],
  ['control: summer then winter',
   [{'cool_sp': 750, 'rh_sp': 50, 'max_overcool': 30, 'hum_sp': 40},
    [[765, 52, 80],
     [762, 58, 80],
     [745, 58, 80],
     [738, 50, 80],
     [700, 25, 10],
     [700, 29, 10],
     [700, 36, 10],
     [700, 10, -15]]],
   [[True, 750, False],
    [True, 720, False],
    [True, 720, False],
    [False, 750, False],
    [False, 750, True],
    [False, 750, True],
    [False, 750, False],
    [False, 750, True]]],
  ['control: dehumidify band',
   [{'cool_sp': 750, 'rh_sp': 50, 'max_overcool': 30, 'hum_sp': 40},
    [[760, 56, 80],
     [752, 53, 80],
     [745, 52, 80],
     [741, 51, 80],
     [741, 50, 80],
     [752, 52, 80],
     [749, 52, 80]]],
   [[True, 720, False],
    [True, 735, False],
    [True, 740, False],
    [False, 745, False],
    [False, 750, False],
    [False, 750, False],
    [False, 750, False]]],
  ['control: cold snap',
   [{'cool_sp': 750, 'rh_sp': 50, 'max_overcool': 20, 'hum_sp': 45},
    [[700, 12, -60], [700, 14, -60], [700, 16, -60], [700, 20, 50], [700, 20, 49]]],
   [[False, 750, False], [False, 750, False], [False, 750, False], [False, 750, False], [False, 750, True]]],
  ['control: scenario 1',
   [{'cool_sp': 750, 'rh_sp': 50, 'max_overcool': 30, 'hum_sp': 40},
    [[738, 41, 24],
     [734, 38, 21],
     [725, 33, 9],
     [726, 34, -2],
     [733, 39, 7],
     [743, 36, 7],
     [740, 38, 7],
     [752, 32, 19],
     [742, 34, 11],
     [732, 32, 9]]],
   [[False, 750, False],
    [False, 750, False],
    [False, 750, False],
    [False, 750, False],
    [False, 750, False],
    [False, 750, False],
    [False, 750, False],
    [False, 750, False],
    [False, 750, False],
    [False, 750, False]]],
  ['control: scenario 2',
   [{'cool_sp': 750, 'rh_sp': 50, 'max_overcool': 30, 'hum_sp': 40},
    [[762, 20, -5],
     [767, 18, -6],
     [764, 13, -16],
     [765, 11, -12],
     [758, 10, -15],
     [757, 16, -3],
     [761, 16, 7],
     [758, 10, 13],
     [765, 10, 16],
     [763, 13, 12],
     [775, 16, 9],
     [765, 18, 4],
     [755, 20, 3],
     [754, 25, -3]]],
   [[True, 750, True],
    [True, 750, True],
    [True, 750, True],
    [True, 750, True],
    [True, 750, True],
    [True, 750, True],
    [True, 750, True],
    [True, 750, True],
    [True, 750, True],
    [True, 750, True],
    [True, 750, True],
    [True, 750, True],
    [True, 750, True],
    [True, 750, False]]],
  ['control: scenario 3',
   [{'cool_sp': 750, 'rh_sp': 50, 'max_overcool': 30, 'hum_sp': 45},
    [[741, 31, 49],
     [750, 36, 55],
     [739, 36, 59],
     [734, 34, 55],
     [728, 33, 56],
     [717, 35, 48],
     [715, 34, 60],
     [726, 38, 57],
     [726, 39, 57],
     [719, 34, 54],
     [726, 39, 57],
     [729, 41, 61],
     [732, 39, 66],
     [743, 40, 75]]],
   [[False, 750, True],
    [False, 750, False],
    [False, 750, False],
    [False, 750, False],
    [False, 750, False],
    [False, 750, True],
    [False, 750, False],
    [False, 750, False],
    [False, 750, False],
    [False, 750, False],
    [False, 750, False],
    [False, 750, False],
    [False, 750, False],
    [False, 750, False]]]],
 [['regression: frost limit steps',
   [{'cool_sp': 750, 'rh_sp': 50, 'max_overcool': 20, 'hum_sp': 45},
    [[700, 30, 25], [700, 33, 29], [700, 36, 30], [700, 36, -5], [700, 10, -40], [700, 30, 55]]],
   [[False, 750, True],
    [False, 750, True],
    [False, 750, True],
    [False, 750, False],
    [False, 750, True],
    [False, 750, False]]],
  ['regression: scenario 28',
   [{'cool_sp': 750, 'rh_sp': 50, 'max_overcool': 30, 'hum_sp': 50},
    [[757, 49, 37],
     [765, 45, 47],
     [753, 39, 59],
     [747, 34, 56],
     [751, 39, 66],
     [748, 35, 68],
     [754, 40, 59],
     [757, 41, 50],
     [755, 42, 54],
     [752, 46, 56],
     [748, 51, 67],
     [738, 51, 79],
     [739, 52, 77]]],
   [[False, 750, False],
    [True, 750, False],
    [True, 750, False],
    [False, 750, False],
    [False, 750, False],
    [False, 750, False],
    [False, 750, False],
    [False, 750, False],
    [False, 750, False],
    [False, 750, False],
    [False, 750, False],
    [False, 750, False],
    [False, 750, False]]],
  ['control: summer then winter',
   [{'cool_sp': 750, 'rh_sp': 50, 'max_overcool': 30, 'hum_sp': 40},
    [[765, 52, 80],
     [762, 58, 80],
     [745, 58, 80],
     [738, 50, 80],
     [700, 25, 10],
     [700, 29, 10],
     [700, 36, 10],
     [700, 10, -15]]],
   [[True, 750, False],
    [True, 720, False],
    [True, 720, False],
    [False, 750, False],
    [False, 750, True],
    [False, 750, True],
    [False, 750, False],
    [False, 750, True]]],
  ['control: dehumidify band',
   [{'cool_sp': 750, 'rh_sp': 50, 'max_overcool': 30, 'hum_sp': 40},
    [[760, 56, 80],
     [752, 53, 80],
     [745, 52, 80],
     [741, 51, 80],
     [741, 50, 80],
     [752, 52, 80],
     [749, 52, 80]]],
   [[True, 720, False],
    [True, 735, False],
    [True, 740, False],
    [False, 745, False],
    [False, 750, False],
    [False, 750, False],
    [False, 750, False]]],
  ['regression: mild dry day',
   [{'cool_sp': 750, 'rh_sp': 50, 'max_overcool': 20, 'hum_sp': 50},
    [[700, 40, 45], [700, 43, 45], [700, 46, 45], [700, 48, 45]]],
   [[False, 750, True], [False, 750, True], [False, 750, False], [False, 750, False]]],
  ['control: cold snap',
   [{'cool_sp': 750, 'rh_sp': 50, 'max_overcool': 20, 'hum_sp': 45},
    [[700, 12, -60], [700, 14, -60], [700, 16, -60], [700, 20, 50], [700, 20, 49]]],
   [[False, 750, False], [False, 750, False], [False, 750, False], [False, 750, False], [False, 750, True]]],
  ['control: scenario 1',
   [{'cool_sp': 750, 'rh_sp': 50, 'max_overcool': 30, 'hum_sp': 40},
    [[741, 58, -1],
     [736, 54, -9],
     [726, 56, 2],
     [715, 54, 0],
     [721, 55, 1],
     [732, 51, -1],
     [731, 51, -7],
     [727, 55, -12],
     [721, 57, -12]]],
   [[True, 720, False],
    [True, 730, False],
    [True, 720, False],
    [False, 730, False],
    [False, 725, False],
    [False, 745, False],
    [False, 745, False],
    [False, 725, False],
    [False, 720, False]]],
  ['control: scenario 2',
   [{'cool_sp': 750, 'rh_sp': 50, 'max_overcool': 20, 'hum_sp': 40},
    [[749, 37, 58],
     [756, 33, 55],
     [768, 38, 65],
     [771, 41, 72],
     [780, 47, 71],
     [774, 50, 64],
     [770, 54, 73],
     [777, 59, 73],
     [786, 63, 85],
     [788, 59, 90],
     [790, 61, 90],
     [782, 58, 85],
     [790, 53, 80],
     [790, 48, 82]]],
   [[False, 750, False],
    [False, 750, False],
    [True, 750, False],
    [True, 750, False],
    [True, 750, False],
    [True, 750, False],
    [True, 750, False],
    [True, 730, False],
    [True, 730, False],
    [True, 730, False],
    [True, 730, False],
    [True, 730, False],
    [True, 735, False],
    [True, 750, False]]]],
 [['regression: frost limit steps',
   [{'cool_sp': 750, 'rh_sp': 50, 'max_overcool': 20, 'hum_sp': 45},
    [[700, 30, 25], [700, 33, 29], [700, 36, 30], [700, 36, -5], [700, 10, -40], [700, 30, 55]]],
   [[False, 750, True],
    [False, 750, True],
    [False, 750, True],
    [False, 750, False],
    [False, 750, True],
    [False, 750, False]]],
  ['regression: mild dry day',
   [{'cool_sp': 750, 'rh_sp': 50, 'max_overcool': 20, 'hum_sp': 50},
    [[700, 40, 45], [700, 43, 45], [700, 46, 45], [700, 48, 45]]],
   [[False, 750, True], [False, 750, True], [False, 750, False], [False, 750, False]]],
  ['control: summer then winter',
   [{'cool_sp': 750, 'rh_sp': 50, 'max_overcool': 30, 'hum_sp': 40},
    [[765, 52, 80],
     [762, 58, 80],
     [745, 58, 80],
     [738, 50, 80],
     [700, 25, 10],
     [700, 29, 10],
     [700, 36, 10],
     [700, 10, -15]]],
   [[True, 750, False],
    [True, 720, False],
    [True, 720, False],
    [False, 750, False],
    [False, 750, True],
    [False, 750, True],
    [False, 750, False],
    [False, 750, True]]],
  ['control: dehumidify band',
   [{'cool_sp': 750, 'rh_sp': 50, 'max_overcool': 30, 'hum_sp': 40},
    [[760, 56, 80],
     [752, 53, 80],
     [745, 52, 80],
     [741, 51, 80],
     [741, 50, 80],
     [752, 52, 80],
     [749, 52, 80]]],
   [[True, 720, False],
    [True, 735, False],
    [True, 740, False],
    [False, 745, False],
    [False, 750, False],
    [False, 750, False],
    [False, 750, False]]],
  ['control: cold snap',
   [{'cool_sp': 750, 'rh_sp': 50, 'max_overcool': 20, 'hum_sp': 45},
    [[700, 12, -60], [700, 14, -60], [700, 16, -60], [700, 20, 50], [700, 20, 49]]],
   [[False, 750, False], [False, 750, False], [False, 750, False], [False, 750, False], [False, 750, True]]],
  ['control: scenario 1',
   [{'cool_sp': 750, 'rh_sp': 50, 'max_overcool': 30, 'hum_sp': 35},
    [[760, 30, 52],
     [750, 32, 60],
     [748, 28, 48],
     [744, 33, 44],
     [754, 37, 54],
     [748, 40, 55],
     [758, 39, 61],
     [760, 42, 61],
     [754, 36, 49],
     [742, 30, 44],
     [731, 32, 54],
     [739, 36, 48],
     [733, 36, 54]]],
   [[False, 750, False],
    [False, 750, False],
    [False, 750, True],
    [False, 750, True],
    [False, 750, False],
    [False, 750, False],
    [False, 750, False],
    [False, 750, False],
    [False, 750, False],
    [False, 750, True],
    [False, 750, False],
    [False, 750, False],
    [False, 750, False]]],
  ['control: scenario 2',
   [{'cool_sp': 750, 'rh_sp': 50, 'max_overcool': 30, 'hum_sp': 45},
    [[746, 32, -7],
     [745, 28, -12],
     [741, 24, -18],
     [736, 26, -12],
     [729, 31, 0],
     [720, 32, 7],
     [730, 30, 14],
     [728, 28, 19],
     [725, 23, 17],
     [729, 20, 18],
     [717, 24, 19],
     [715, 19, 10],
     [723, 14, 20],
     [722, 10, 23]]],
   [[False, 750, False],
    [False, 750, False],
    [False, 750, False],
    [False, 750, False],
    [False, 750, False],
    [False, 750, False],
    [False, 750, True],
    [False, 750, True],
    [False, 750, True],
    [False, 750, True],
    [False, 750, True],
    [False, 750, True],
    [False, 750, True],
    [False, 750, True]]],
  ['control: scenario 3',
   [{'cool_sp': 750, 'rh_sp': 50, 'max_overcool': 20, 'hum_sp': 35},
    [[757, 58, 62],
     [767, 52, 71],
     [773, 56, 59],
     [776, 56, 64],
     [765, 59, 59],
     [759, 53, 53],
     [771, 51, 47],
     [775, 55, 38],
     [773, 53, 28],
     [777, 59, 17],
     [785, 57, 9],
     [777, 61, 4]]],
   [[True, 730, False],
    [True, 740, False],
    [True, 730, False],
    [True, 730, False],
    [True, 730, False],
    [True, 735, False],
    [True, 745, False],
    [True, 730, False],
    [True, 735, False],
    [True, 730, False],
    [True, 730, False],
    [True, 730, False]]]],
 [['regression: frost limit steps',
   [{'cool_sp': 750, 'rh_sp': 50, 'max_overcool': 20, 'hum_sp': 45},
    [[700, 30, 25], [700, 33, 29], [700, 36, 30], [700, 36, -5], [700, 10, -40], [700, 30, 55]]],
   [[False, 750, True],
    [False, 750, True],
    [False, 750, True],
    [False, 750, False],
    [False, 750, True],
    [False, 750, False]]],
  ['regression: mild dry day',
   [{'cool_sp': 750, 'rh_sp': 50, 'max_overcool': 20, 'hum_sp': 50},
    [[700, 40, 45], [700, 43, 45], [700, 46, 45], [700, 48, 45]]],
   [[False, 750, True], [False, 750, True], [False, 750, False], [False, 750, False]]],
  ['control: summer then winter',
   [{'cool_sp': 750, 'rh_sp': 50, 'max_overcool': 30, 'hum_sp': 40},
    [[765, 52, 80],
     [762, 58, 80],
     [745, 58, 80],
     [738, 50, 80],
     [700, 25, 10],
     [700, 29, 10],
     [700, 36, 10],
     [700, 10, -15]]],
   [[True, 750, False],
    [True, 720, False],
    [True, 720, False],
    [False, 750, False],
    [False, 750, True],
    [False, 750, True],
    [False, 750, False],
    [False, 750, True]]],
  ['control: dehumidify band',
   [{'cool_sp': 750, 'rh_sp': 50, 'max_overcool': 30, 'hum_sp': 40},
    [[760, 56, 80],
     [752, 53, 80],
     [745, 52, 80],
     [741, 51, 80],
     [741, 50, 80],
     [752, 52, 80],
     [749, 52, 80]]],
   [[True, 720, False],
    [True, 735, False],
    [True, 740, False],
    [False, 745, False],
    [False, 750, False],
    [False, 750, False],
    [False, 750, False]]],
  ['control: cold snap',
   [{'cool_sp': 750, 'rh_sp': 50, 'max_overcool': 20, 'hum_sp': 45},
    [[700, 12, -60], [700, 14, -60], [700, 16, -60], [700, 20, 50], [700, 20, 49]]],
   [[False, 750, False], [False, 750, False], [False, 750, False], [False, 750, False], [False, 750, True]]],
  ['control: scenario 1',
   [{'cool_sp': 750, 'rh_sp': 50, 'max_overcool': 20, 'hum_sp': 50},
    [[741, 41, 9],
     [745, 42, 4],
     [749, 41, 7],
     [737, 37, 8],
     [740, 34, 14],
     [733, 38, 20],
     [730, 44, 9],
     [724, 38, 16],
     [725, 32, 6],
     [721, 27, -4]]],
   [[False, 750, False],
    [False, 750, False],
    [False, 750, False],
    [False, 750, False],
    [False, 750, False],
    [False, 750, False],
    [False, 750, False],
    [False, 750, False],
    [False, 750, False],
    [False, 750, False]]],
  ['control: scenario 2',
   [{'cool_sp': 750, 'rh_sp': 50, 'max_overcool': 20, 'hum_sp': 50},
    [[755, 29, 22],
     [752, 27, 11],
     [752, 25, 3],
     [763, 20, -7],
     [756, 25, -6],
     [766, 23, -4],
     [768, 25, 5],
     [774, 26, 7],
     [781, 22, -4]]],
   [[False, 750, True],
    [False, 750, True],
    [False, 750, True],
    [True, 750, True],
    [True, 750, False],
    [True, 750, False],
    [True, 750, True],
    [True, 750, True],
    [True, 750, True]]],
  ['control: scenario 3',
   [{'cool_sp': 750, 'rh_sp': 50, 'max_overcool': 20, 'hum_sp': 45},
    [[761, 42, -7],
     [772, 41, 1],
     [768, 39, 5],
     [769, 39, -1],
     [759, 38, 1],
     [759, 43, -3],
     [764, 37, -15],
     [772, 40, -24],
     [779, 41, -30],
     [778, 45, -30],
     [772, 46, -30],
     [780, 40, -29],
     [771, 43, -30],
     [780, 40, -27]]],
   [[True, 750, False],
    [True, 750, False],
    [True, 750, False],
    [True, 750, False],
    [True, 750, False],
    [True, 750, False],
    [True, 750, False],
    [True, 750, False],
    [True, 750, False],
    [True, 750, False],
    [True, 750, False],
    [True, 750, False],
    [True, 750, False],
    [True, 750, False]]]],
 [['regression: frost limit steps',
   [{'cool_sp': 750, 'rh_sp': 50, 'max_overcool': 20, 'hum_sp': 45},
    [[700, 30, 25], [700, 33, 29], [700, 36, 30], [700, 36, -5], [700, 10, -40], [700, 30, 55]]],
   [[False, 750, True],
    [False, 750, True],
    [False, 750, True],
    [False, 750, False],
    [False, 750, True],
    [False, 750, False]]],
  ['regression: mild dry day',
   [{'cool_sp': 750, 'rh_sp': 50, 'max_overcool': 20, 'hum_sp': 50},
    [[700, 40, 45], [700, 43, 45], [700, 46, 45], [700, 48, 45]]],
   [[False, 750, True], [False, 750, True], [False, 750, False], [False, 750, False]]],
  ['control: summer then winter',
   [{'cool_sp': 750, 'rh_sp': 50, 'max_overcool': 30, 'hum_sp': 40},
    [[765, 52, 80],
     [762, 58, 80],
     [745, 58, 80],
     [738, 50, 80],
     [700, 25, 10],
     [700, 29, 10],
     [700, 36, 10],
     [700, 10, -15]]],
   [[True, 750, False],
    [True, 720, False],
    [True, 720, False],
    [False, 750, False],
    [False, 750, True],
    [False, 750, True],
    [False, 750, False],
    [False, 750, True]]],
  ['control: dehumidify band',
   [{'cool_sp': 750, 'rh_sp': 50, 'max_overcool': 30, 'hum_sp': 40},
    [[760, 56, 80],
     [752, 53, 80],
     [745, 52, 80],
     [741, 51, 80],
     [741, 50, 80],
     [752, 52, 80],
     [749, 52, 80]]],
   [[True, 720, False],
    [True, 735, False],
    [True, 740, False],
    [False, 745, False],
    [False, 750, False],
    [False, 750, False],
    [False, 750, False]]],
  ['control: cold snap',
   [{'cool_sp': 750, 'rh_sp': 50, 'max_overcool': 20, 'hum_sp': 45},
    [[700, 12, -60], [700, 14, -60], [700, 16, -60], [700, 20, 50], [700, 20, 49]]],
   [[False, 750, False], [False, 750, False], [False, 750, False], [False, 750, False], [False, 750, True]]],
  ['control: scenario 1',
   [{'cool_sp': 750, 'rh_sp': 50, 'max_overcool': 20, 'hum_sp': 35},
    [[755, 53, 26],
     [756, 54, 25],
     [766, 54, 30],
     [774, 48, 25],
     [783, 43, 35],
     [778, 37, 35],
     [777, 33, 39],
     [784, 35, 49],
     [779, 31, 39],
     [788, 27, 45],
     [778, 31, 42],
     [779, 31, 44],
     [789, 36, 51]]],
   [[False, 750, False],
    [False, 750, False],
    [True, 750, False],
    [True, 750, False],
    [True, 750, False],
    [True, 750, False],
    [True, 750, False],
    [True, 750, False],
    [True, 750, True],
    [True, 750, True],
    [True, 750, True],
    [True, 750, True],
    [True, 750, False]]],
  ['control: scenario 2',
   [{'cool_sp': 750, 'rh_sp': 50, 'max_overcool': 30, 'hum_sp': 45},
    [[759, 30, 36],
     [770, 33, 36],
     [759, 34, 36],
     [752, 33, 36],
     [754, 27, 25],
     [764, 25, 15],
     [772, 25, 26],
     [784, 19, 22],
     [790, 21, 21]]],
   [[False, 750, True],
    [True, 750, True],
    [True, 750, True],
    [True, 750, True],
    [True, 750, True],
    [True, 750, True],
    [True, 750, True],
    [True, 750, True],
    [True, 750, True]]],
  ['control: scenario 3',
   [{'cool_sp': 750, 'rh_sp': 50, 'max_overcool': 20, 'hum_sp': 45},
    [[758, 47, 40],
     [762, 48, 47],
     [771, 44, 41],
     [782, 45, 36],
     [790, 48, 36],
     [787, 45, 25],
     [790, 40, 20],
     [790, 38, 12],
     [790, 35, 17],
     [787, 40, 13],
     [780, 36, 2],
     [774, 40, 1],
     [786, 44, 1],
     [778, 39, 11]]],
   [[False, 750, False],
    [True, 750, False],
    [True, 750, False],
    [True, 750, False],
    [True, 750, False],
    [True, 750, False],
    [True, 750, False],
    [True, 750, False],
    [True, 750, False],
    [True, 750, False],
    [True, 750, False],
    [True, 750, False],
    [True, 750, False],
    [True, 750, False]]]]]
for label, args, expected in fixtures[N-1]:
    check(label, solve(*args), expected)
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
regression: frost limit steps	`[[False, 750, True], [False, 750, True], [False, 750, True], [False, 750, False], [False, 750, True], [False, 750, False]]`	`[[False, 750, True], [False, 750, True], [False, 750, True], [False, 750, False], [False, 750, True], [False, 750, False]]`	Passed
regression: mild dry day	`[[False, 750, True], [False, 750, True], [False, 750, False], [False, 750, False]]`	`[[False, 750, True], [False, 750, True], [False, 750, False], [False, 750, False]]`	Passed
control: summer then winter	`[[True, 750, False], [True, 720, False], [True, 720, False], [False, 750, False], [False, 750, True], [False, 750, True], [False, 750, False], [False, 750, True]]`	`[[True, 750, False], [True, 720, False], [True, 720, False], [False, 750, False], [False, 750, True], [False, 750, True], [False, 750, False], [False, 750, True]]`	Passed
control: dehumidify band	`[[True, 720, False], [True, 735, False], [True, 740, False], [False, 745, False], [False, 750, False], [False, 750, False], [False, 750, False]]`	`[[True, 720, False], [True, 735, False], [True, 740, False], [False, 745, False], [False, 750, False], [False, 750, False], [False, 750, False]]`	Passed
control: cold snap	`[[False, 750, False], [False, 750, False], [False, 750, False], [False, 750, False], [False, 750, True]]`	`[[False, 750, False], [False, 750, False], [False, 750, False], [False, 750, False], [False, 750, True]]`	Passed
control: scenario 1	`[[False, 750, False], [False, 750, False], [False, 750, False], [False, 750, False], [False, 750, False], [False, 750, False], [False, 750, False], [False, 750, False], [False, 750, False], [False, 750, False]]`	`[[False, 750, False], [False, 750, False], [False, 750, False], [False, 750, False], [False, 750, False], [False, 750, False], [False, 750, False], [False, 750, False], [False, 750, False], [False, 750, False]]`	Passed
control: scenario 2	`[[True, 750, True], [True, 750, True], [True, 750, True], [True, 750, True], [True, 750, True], [True, 750, True], [True, 750, True], [True, 750, True], [True, 750, True], [True, 750, True], [True, 750, True], [True, 750, True], [True, 750, True], [True, 750, False]]`	`[[True, 750, True], [True, 750, True], [True, 750, True], [True, 750, True], [True, 750, True], [True, 750, True], [True, 750, True], [True, 750, True], [True, 750, True], [True, 750, True], [True, 750, True], [True, 750, True], [True, 750, True], [True, 750, False]]`	Passed
control: scenario 3	`[[False, 750, True], [False, 750, False], [False, 750, False], [False, 750, False], [False, 750, False], [False, 750, True], [False, 750, False], [False, 750, False], [False, 750, False], [False, 750, False], [False, 750, False], [False, 750, False], [False, 750, False], [False, 750, False]]`	`[[False, 750, True], [False, 750, False], [False, 750, False], [False, 750, False], [False, 750, False], [False, 750, True], [False, 750, False], [False, 750, False], [False, 750, False], [False, 750, False], [False, 750, False], [False, 750, False], [False, 750, False], [False, 750, False]]`	Passed

SHA-256 / 07a22c3e69fb652212a980effea02a61c9c3dcb5225841dd4162e1603af3d473

Verification & scope

A deterministic bounded teaching model of one thermostat or HVAC controller decision evaluated per sample. Temperatures are integer tenths of a degree Fahrenheit unless stated otherwise. The contract is a stipulated toy convention, not a claim of conformance to any manufacturer, ASHRAE guideline or code. 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 2026-09-29T14:51:47.350628+00:00.

Case digest / 9967c746c8bd1bcf3ad8ac2a61d0dbe22242d959fe20fc63e4350cd86bdb5a24