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FA-93171 / EV charging session scheduling / Open access

Demand-response curtailment of a charge plan: event end exclusivity · case 01

Curtailment lingers one slot after the event ends.

Verified by executionVariant 1 · 7 checks per implementationDownload source bundle ↓JSON ↗

ROOT CAUSE

The event end slot is treated as inside the event.

VERIFIED REPAIR

Events cover [start, end).

Unsuccessful approach: Shifting both ends skips the first curtailed slot.

Case contract

profile is planned watts per slot. events are [start, end, pct, opt_out]; during [start, end) a non-opted-out event limits power to pct percent of plan (integer floor of p*pct/100), and overlapping events apply the lowest pct. Curtailed power never drops below min(plan, floor_w). Return [new profile, total curtailed watts over slots].

Why this case matters

Depot, workplace and public EV chargers schedule sessions against prices, circuit limits and departure deadlines; a wrong decision silently strands a driver or overloads a feeder.

1 / The failure

Exit 1
"""Failure Map reference implementation. Python standard library only."""
import json

N = 1
observations = []
def solve(profile, events, floor_w):
    out = []
    for t, p in enumerate(profile):
        pct = 100
        for s, e, q, opt in events:
            if opt:
                continue
            if s <= t <= e and q < pct:
                pct = q
        new = p * pct // 100
        new = max(new, min(p, floor_w))
        out.append(new)
    return [out, sum(profile) - sum(out)]
def check(label, actual, expected):
    observations.append({"check": label, "actual": actual, "expected": expected, "passed": actual == expected})
fixtures = [[['boundary: event ends at slot', [[3680, 3680, 3680], [[0, 1, 50, False]], 0],
   [[1840, 3680, 3680], 1840]],
  ['boundary: opted-out event', [[7400, 7400], [[0, 2, 0, True]], 1380], [[7400, 7400], 0]],
  ['boundary: plan below floor', [[1000, 7400], [[0, 2, 0, False]], 1380], [[1000, 1380], 6020]],
  ['regression: event end exclusivity',
   [[0, 0, 1111, 11000, 7400, 3680, 1111, 1380, 11000],
    [[1, 3, 60, False], [5, 8, 60, False], [3, 8, 0, True]], 1380],
   [[0, 0, 1111, 11000, 7400, 2208, 1111, 1380, 11000], 1472]],
  ['regression: event end exclusivity (partial repair)',
   [[1380, 1000, 3333, 2345, 1000, 1380, 11000, 3333, 3680, 0],
    [[8, 9, 60, False], [9, 10, 25, True], [4, 9, 75, True]], 0],
   [[1380, 1000, 3333, 2345, 1000, 1380, 11000, 3333, 2208, 0], 1472]],
  ['control 1',
   [[1000, 3333, 1111, 1380, 11000], [[1, 2, 75, True], [5, 8, 75, False], [4, 5, 25, False]], 0],
   [[1000, 3333, 1111, 1380, 2750], 8250]],
  ['control 2',
   [[1380, 1000, 1111, 1000, 1000, 3333, 3333, 7400, 1111, 3680, 11000, 1111],
    [[8, 12, 60, False], [5, 7, 0, False]], 2000],
   [[1380, 1000, 1111, 1000, 1000, 2000, 2000, 7400, 1111, 2208, 6600, 1111], 8538]]],
 [['boundary: event ends at slot', [[3680, 3680, 3680], [[0, 1, 50, False]], 0],
   [[1840, 3680, 3680], 1840]],
  ['boundary: opted-out event', [[7400, 7400], [[0, 2, 0, True]], 1380], [[7400, 7400], 0]],
  ['boundary: plan below floor', [[1000, 7400], [[0, 2, 0, False]], 1380], [[1000, 1380], 6020]],
  ['regression: event end exclusivity',
   [[3680, 7400, 7400, 0, 7400, 11000, 3680, 2345, 0, 7400, 1380], [[4, 4, 0, False]], 2000],
   [[3680, 7400, 7400, 0, 7400, 11000, 3680, 2345, 0, 7400, 1380], 0]],
  ['regression: event end exclusivity (partial repair)',
   [[3680, 7400, 2345, 1111], [[2, 4, 50, False]], 2000], [[3680, 7400, 2000, 1111], 345]],
  ['control 1',
   [[3680, 1000, 3680, 1000, 3333, 2345, 1380, 1380, 1000, 3680, 7400],
    [[6, 11, 25, True], [5, 10, 75, False]], 0],
   [[3680, 1000, 3680, 1000, 3333, 1758, 1035, 1035, 750, 2760, 7400], 2447]],
  ['control 2',
   [[7400, 3680, 7400, 3333, 0, 1380, 1111, 3333, 3680, 7400, 1111, 1380],
    [[0, 3, 75, True], [0, 3, 50, False]], 0],
   [[3700, 1840, 3700, 3333, 0, 1380, 1111, 3333, 3680, 7400, 1111, 1380], 9240]]],
 [['boundary: event ends at slot', [[3680, 3680, 3680], [[0, 1, 50, False]], 0],
   [[1840, 3680, 3680], 1840]],
  ['boundary: opted-out event', [[7400, 7400], [[0, 2, 0, True]], 1380], [[7400, 7400], 0]],
  ['boundary: plan below floor', [[1000, 7400], [[0, 2, 0, False]], 1380], [[1000, 1380], 6020]],
  ['regression: event end exclusivity',
   [[7400, 11000, 3680, 3333, 1111, 3680, 11000, 3680, 1111, 2345],
    [[5, 5, 25, False], [7, 11, 25, True]], 0],
   [[7400, 11000, 3680, 3333, 1111, 3680, 11000, 3680, 1111, 2345], 0]],
  ['regression: event end exclusivity (partial repair)',
   [[1380, 1380, 1111, 2345, 1380, 2345], [[6, 11, 0, False], [3, 7, 60, False], [3, 6, 0, False]],
    0],
   [[1380, 1380, 1111, 0, 0, 0], 6070]],
  ['control 1',
   [[0, 1000, 1000, 2345, 0, 3680, 1380, 3680], [[4, 8, 50, True], [5, 10, 75, True]], 0],
   [[0, 1000, 1000, 2345, 0, 3680, 1380, 3680], 0]],
  ['control 2',
   [[3333, 7400, 1000, 2345, 11000, 2345], [[3, 7, 50, False], [5, 6, 25, True]], 2000],
   [[3333, 7400, 1000, 2000, 5500, 2000], 6190]]],
 [['boundary: event ends at slot', [[3680, 3680, 3680], [[0, 1, 50, False]], 0],
   [[1840, 3680, 3680], 1840]],
  ['boundary: opted-out event', [[7400, 7400], [[0, 2, 0, True]], 1380], [[7400, 7400], 0]],
  ['boundary: plan below floor', [[1000, 7400], [[0, 2, 0, False]], 1380], [[1000, 1380], 6020]],
  ['regression: event end exclusivity',
   [[11000, 1380, 3333, 3333, 1111, 1380, 11000, 11000, 2345, 1111],
    [[5, 9, 60, True], [4, 5, 60, False], [1, 6, 0, False]], 2000],
   [[11000, 1380, 2000, 2000, 1111, 1380, 11000, 11000, 2345, 1111], 2666]],
  ['regression: event end exclusivity (partial repair)',
   [[0, 3333, 3333, 0, 1380, 2345, 1111, 11000, 0],
    [[7, 11, 25, False], [3, 4, 0, True], [3, 6, 0, True]], 2000],
   [[0, 3333, 3333, 0, 1380, 2345, 1111, 2750, 0], 8250]],
  ['control 1',
   [[3680, 3680, 1000, 0, 3333, 1000, 3333, 3680],
    [[1, 5, 0, False], [7, 11, 25, False], [6, 6, 60, False]], 2000],
   [[3680, 2000, 1000, 0, 2000, 1000, 3333, 2000], 4693]],
  ['control 2',
   [[1380, 7400, 7400, 1000, 1111, 2345, 1380], [[4, 8, 0, False], [6, 10, 0, False]], 0],
   [[1380, 7400, 7400, 1000, 0, 0, 0], 4836]]],
 [['boundary: event ends at slot', [[3680, 3680, 3680], [[0, 1, 50, False]], 0],
   [[1840, 3680, 3680], 1840]],
  ['boundary: opted-out event', [[7400, 7400], [[0, 2, 0, True]], 1380], [[7400, 7400], 0]],
  ['boundary: plan below floor', [[1000, 7400], [[0, 2, 0, False]], 1380], [[1000, 1380], 6020]],
  ['regression: event end exclusivity',
   [[1380, 3680, 1000, 0, 3680, 7400, 3333, 7400, 3333, 7400, 3680],
    [[8, 11, 0, False], [10, 13, 0, False], [4, 4, 60, False]], 0],
   [[1380, 3680, 1000, 0, 3680, 7400, 3333, 7400, 0, 0, 0], 14413]],
  ['regression: event end exclusivity (partial repair)',
   [[3333, 7400, 1000, 3680, 0, 7400, 1111, 0, 11000], [[6, 10, 50, False]], 0],
   [[3333, 7400, 1000, 3680, 0, 7400, 555, 0, 5500], 6056]],
  ['control 1', [[3333, 0, 1000, 1111, 1380, 7400, 1380, 7400, 3680], [[5, 10, 0, True]], 1380],
   [[3333, 0, 1000, 1111, 1380, 7400, 1380, 7400, 3680], 0]],
  ['control 2', [[2345, 7400, 1111, 3333, 3333, 7400, 3680], [[5, 8, 25, False]], 0],
   [[2345, 7400, 1111, 3333, 3333, 1850, 920], 8310]]]]
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 fixtureActualExpectedOutcome
boundary: event ends at slot[[1840, 1840, 3680], 3680][[1840, 3680, 3680], 1840]Failed
boundary: opted-out event[[7400, 7400], 0][[7400, 7400], 0]Passed
boundary: plan below floor[[1000, 1380], 6020][[1000, 1380], 6020]Passed
regression: event end exclusivity[[0, 0, 1111, 6600, 7400, 2208, 1111, 1380, 6600], 10272][[0, 0, 1111, 11000, 7400, 2208, 1111, 1380, 11000], 1472]Failed
regression: event end exclusivity (partial repair)[[1380, 1000, 3333, 2345, 1000, 1380, 11000, 3333, 2208, 0], 1472][[1380, 1000, 3333, 2345, 1000, 1380, 11000, 3333, 2208, 0], 1472]Passed
control 1[[1000, 3333, 1111, 1380, 2750], 8250][[1000, 3333, 1111, 1380, 2750], 8250]Passed
control 2[[1380, 1000, 1111, 1000, 1000, 2000, 2000, 2000, 1111, 2208, 6600, 1111], 13938][[1380, 1000, 1111, 1000, 1000, 2000, 2000, 7400, 1111, 2208, 6600, 1111], 8538]Failed

SHA-256 / 2499a36c7f084a9bcacdba7f3073c2fca1da0e0ab19dac7cc82778916fd12855

2 / The unsuccessful fix

Exit 1
"""Failure Map reference implementation. Python standard library only."""
import json

N = 1
observations = []
def solve(profile, events, floor_w):
    out = []
    for t, p in enumerate(profile):
        pct = 100
        for s, e, q, opt in events:
            if opt:
                continue
            if s < t <= e and q < pct:
                pct = q
        new = p * pct // 100
        new = max(new, min(p, floor_w))
        out.append(new)
    return [out, sum(profile) - sum(out)]
def check(label, actual, expected):
    observations.append({"check": label, "actual": actual, "expected": expected, "passed": actual == expected})
fixtures = [[['boundary: event ends at slot', [[3680, 3680, 3680], [[0, 1, 50, False]], 0],
   [[1840, 3680, 3680], 1840]],
  ['boundary: opted-out event', [[7400, 7400], [[0, 2, 0, True]], 1380], [[7400, 7400], 0]],
  ['boundary: plan below floor', [[1000, 7400], [[0, 2, 0, False]], 1380], [[1000, 1380], 6020]],
  ['regression: event end exclusivity',
   [[0, 0, 1111, 11000, 7400, 3680, 1111, 1380, 11000],
    [[1, 3, 60, False], [5, 8, 60, False], [3, 8, 0, True]], 1380],
   [[0, 0, 1111, 11000, 7400, 2208, 1111, 1380, 11000], 1472]],
  ['regression: event end exclusivity (partial repair)',
   [[1380, 1000, 3333, 2345, 1000, 1380, 11000, 3333, 3680, 0],
    [[8, 9, 60, False], [9, 10, 25, True], [4, 9, 75, True]], 0],
   [[1380, 1000, 3333, 2345, 1000, 1380, 11000, 3333, 2208, 0], 1472]],
  ['control 1',
   [[1000, 3333, 1111, 1380, 11000], [[1, 2, 75, True], [5, 8, 75, False], [4, 5, 25, False]], 0],
   [[1000, 3333, 1111, 1380, 2750], 8250]],
  ['control 2',
   [[1380, 1000, 1111, 1000, 1000, 3333, 3333, 7400, 1111, 3680, 11000, 1111],
    [[8, 12, 60, False], [5, 7, 0, False]], 2000],
   [[1380, 1000, 1111, 1000, 1000, 2000, 2000, 7400, 1111, 2208, 6600, 1111], 8538]]],
 [['boundary: event ends at slot', [[3680, 3680, 3680], [[0, 1, 50, False]], 0],
   [[1840, 3680, 3680], 1840]],
  ['boundary: opted-out event', [[7400, 7400], [[0, 2, 0, True]], 1380], [[7400, 7400], 0]],
  ['boundary: plan below floor', [[1000, 7400], [[0, 2, 0, False]], 1380], [[1000, 1380], 6020]],
  ['regression: event end exclusivity',
   [[3680, 7400, 7400, 0, 7400, 11000, 3680, 2345, 0, 7400, 1380], [[4, 4, 0, False]], 2000],
   [[3680, 7400, 7400, 0, 7400, 11000, 3680, 2345, 0, 7400, 1380], 0]],
  ['regression: event end exclusivity (partial repair)',
   [[3680, 7400, 2345, 1111], [[2, 4, 50, False]], 2000], [[3680, 7400, 2000, 1111], 345]],
  ['control 1',
   [[3680, 1000, 3680, 1000, 3333, 2345, 1380, 1380, 1000, 3680, 7400],
    [[6, 11, 25, True], [5, 10, 75, False]], 0],
   [[3680, 1000, 3680, 1000, 3333, 1758, 1035, 1035, 750, 2760, 7400], 2447]],
  ['control 2',
   [[7400, 3680, 7400, 3333, 0, 1380, 1111, 3333, 3680, 7400, 1111, 1380],
    [[0, 3, 75, True], [0, 3, 50, False]], 0],
   [[3700, 1840, 3700, 3333, 0, 1380, 1111, 3333, 3680, 7400, 1111, 1380], 9240]]],
 [['boundary: event ends at slot', [[3680, 3680, 3680], [[0, 1, 50, False]], 0],
   [[1840, 3680, 3680], 1840]],
  ['boundary: opted-out event', [[7400, 7400], [[0, 2, 0, True]], 1380], [[7400, 7400], 0]],
  ['boundary: plan below floor', [[1000, 7400], [[0, 2, 0, False]], 1380], [[1000, 1380], 6020]],
  ['regression: event end exclusivity',
   [[7400, 11000, 3680, 3333, 1111, 3680, 11000, 3680, 1111, 2345],
    [[5, 5, 25, False], [7, 11, 25, True]], 0],
   [[7400, 11000, 3680, 3333, 1111, 3680, 11000, 3680, 1111, 2345], 0]],
  ['regression: event end exclusivity (partial repair)',
   [[1380, 1380, 1111, 2345, 1380, 2345], [[6, 11, 0, False], [3, 7, 60, False], [3, 6, 0, False]],
    0],
   [[1380, 1380, 1111, 0, 0, 0], 6070]],
  ['control 1',
   [[0, 1000, 1000, 2345, 0, 3680, 1380, 3680], [[4, 8, 50, True], [5, 10, 75, True]], 0],
   [[0, 1000, 1000, 2345, 0, 3680, 1380, 3680], 0]],
  ['control 2',
   [[3333, 7400, 1000, 2345, 11000, 2345], [[3, 7, 50, False], [5, 6, 25, True]], 2000],
   [[3333, 7400, 1000, 2000, 5500, 2000], 6190]]],
 [['boundary: event ends at slot', [[3680, 3680, 3680], [[0, 1, 50, False]], 0],
   [[1840, 3680, 3680], 1840]],
  ['boundary: opted-out event', [[7400, 7400], [[0, 2, 0, True]], 1380], [[7400, 7400], 0]],
  ['boundary: plan below floor', [[1000, 7400], [[0, 2, 0, False]], 1380], [[1000, 1380], 6020]],
  ['regression: event end exclusivity',
   [[11000, 1380, 3333, 3333, 1111, 1380, 11000, 11000, 2345, 1111],
    [[5, 9, 60, True], [4, 5, 60, False], [1, 6, 0, False]], 2000],
   [[11000, 1380, 2000, 2000, 1111, 1380, 11000, 11000, 2345, 1111], 2666]],
  ['regression: event end exclusivity (partial repair)',
   [[0, 3333, 3333, 0, 1380, 2345, 1111, 11000, 0],
    [[7, 11, 25, False], [3, 4, 0, True], [3, 6, 0, True]], 2000],
   [[0, 3333, 3333, 0, 1380, 2345, 1111, 2750, 0], 8250]],
  ['control 1',
   [[3680, 3680, 1000, 0, 3333, 1000, 3333, 3680],
    [[1, 5, 0, False], [7, 11, 25, False], [6, 6, 60, False]], 2000],
   [[3680, 2000, 1000, 0, 2000, 1000, 3333, 2000], 4693]],
  ['control 2',
   [[1380, 7400, 7400, 1000, 1111, 2345, 1380], [[4, 8, 0, False], [6, 10, 0, False]], 0],
   [[1380, 7400, 7400, 1000, 0, 0, 0], 4836]]],
 [['boundary: event ends at slot', [[3680, 3680, 3680], [[0, 1, 50, False]], 0],
   [[1840, 3680, 3680], 1840]],
  ['boundary: opted-out event', [[7400, 7400], [[0, 2, 0, True]], 1380], [[7400, 7400], 0]],
  ['boundary: plan below floor', [[1000, 7400], [[0, 2, 0, False]], 1380], [[1000, 1380], 6020]],
  ['regression: event end exclusivity',
   [[1380, 3680, 1000, 0, 3680, 7400, 3333, 7400, 3333, 7400, 3680],
    [[8, 11, 0, False], [10, 13, 0, False], [4, 4, 60, False]], 0],
   [[1380, 3680, 1000, 0, 3680, 7400, 3333, 7400, 0, 0, 0], 14413]],
  ['regression: event end exclusivity (partial repair)',
   [[3333, 7400, 1000, 3680, 0, 7400, 1111, 0, 11000], [[6, 10, 50, False]], 0],
   [[3333, 7400, 1000, 3680, 0, 7400, 555, 0, 5500], 6056]],
  ['control 1', [[3333, 0, 1000, 1111, 1380, 7400, 1380, 7400, 3680], [[5, 10, 0, True]], 1380],
   [[3333, 0, 1000, 1111, 1380, 7400, 1380, 7400, 3680], 0]],
  ['control 2', [[2345, 7400, 1111, 3333, 3333, 7400, 3680], [[5, 8, 25, False]], 0],
   [[2345, 7400, 1111, 3333, 3333, 1850, 920], 8310]]]]
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 fixtureActualExpectedOutcome
boundary: event ends at slot[[3680, 1840, 3680], 1840][[1840, 3680, 3680], 1840]Failed
boundary: opted-out event[[7400, 7400], 0][[7400, 7400], 0]Passed
boundary: plan below floor[[1000, 1380], 6020][[1000, 1380], 6020]Passed
regression: event end exclusivity[[0, 0, 1111, 6600, 7400, 3680, 1111, 1380, 6600], 8800][[0, 0, 1111, 11000, 7400, 2208, 1111, 1380, 11000], 1472]Failed
regression: event end exclusivity (partial repair)[[1380, 1000, 3333, 2345, 1000, 1380, 11000, 3333, 3680, 0], 0][[1380, 1000, 3333, 2345, 1000, 1380, 11000, 3333, 2208, 0], 1472]Failed
control 1[[1000, 3333, 1111, 1380, 11000], 0][[1000, 3333, 1111, 1380, 2750], 8250]Failed
control 2[[1380, 1000, 1111, 1000, 1000, 3333, 2000, 2000, 1111, 2208, 6600, 1111], 12605][[1380, 1000, 1111, 1000, 1000, 2000, 2000, 7400, 1111, 2208, 6600, 1111], 8538]Failed

SHA-256 / 67d971e4a9b6a3cdb3c02624540d0425da79bbef28eec101db4065d4880ee685

3 / The verified repair

Exit 0
"""Failure Map reference implementation. Python standard library only."""
import json

N = 1
observations = []
def solve(profile, events, floor_w):
    out = []
    for t, p in enumerate(profile):
        pct = 100
        for s, e, q, opt in events:
            if opt:
                continue
            if s <= t < e and q < pct:
                pct = q
        new = p * pct // 100
        new = max(new, min(p, floor_w))
        out.append(new)
    return [out, sum(profile) - sum(out)]
def check(label, actual, expected):
    observations.append({"check": label, "actual": actual, "expected": expected, "passed": actual == expected})
fixtures = [[['boundary: event ends at slot', [[3680, 3680, 3680], [[0, 1, 50, False]], 0],
   [[1840, 3680, 3680], 1840]],
  ['boundary: opted-out event', [[7400, 7400], [[0, 2, 0, True]], 1380], [[7400, 7400], 0]],
  ['boundary: plan below floor', [[1000, 7400], [[0, 2, 0, False]], 1380], [[1000, 1380], 6020]],
  ['regression: event end exclusivity',
   [[0, 0, 1111, 11000, 7400, 3680, 1111, 1380, 11000],
    [[1, 3, 60, False], [5, 8, 60, False], [3, 8, 0, True]], 1380],
   [[0, 0, 1111, 11000, 7400, 2208, 1111, 1380, 11000], 1472]],
  ['regression: event end exclusivity (partial repair)',
   [[1380, 1000, 3333, 2345, 1000, 1380, 11000, 3333, 3680, 0],
    [[8, 9, 60, False], [9, 10, 25, True], [4, 9, 75, True]], 0],
   [[1380, 1000, 3333, 2345, 1000, 1380, 11000, 3333, 2208, 0], 1472]],
  ['control 1',
   [[1000, 3333, 1111, 1380, 11000], [[1, 2, 75, True], [5, 8, 75, False], [4, 5, 25, False]], 0],
   [[1000, 3333, 1111, 1380, 2750], 8250]],
  ['control 2',
   [[1380, 1000, 1111, 1000, 1000, 3333, 3333, 7400, 1111, 3680, 11000, 1111],
    [[8, 12, 60, False], [5, 7, 0, False]], 2000],
   [[1380, 1000, 1111, 1000, 1000, 2000, 2000, 7400, 1111, 2208, 6600, 1111], 8538]]],
 [['boundary: event ends at slot', [[3680, 3680, 3680], [[0, 1, 50, False]], 0],
   [[1840, 3680, 3680], 1840]],
  ['boundary: opted-out event', [[7400, 7400], [[0, 2, 0, True]], 1380], [[7400, 7400], 0]],
  ['boundary: plan below floor', [[1000, 7400], [[0, 2, 0, False]], 1380], [[1000, 1380], 6020]],
  ['regression: event end exclusivity',
   [[3680, 7400, 7400, 0, 7400, 11000, 3680, 2345, 0, 7400, 1380], [[4, 4, 0, False]], 2000],
   [[3680, 7400, 7400, 0, 7400, 11000, 3680, 2345, 0, 7400, 1380], 0]],
  ['regression: event end exclusivity (partial repair)',
   [[3680, 7400, 2345, 1111], [[2, 4, 50, False]], 2000], [[3680, 7400, 2000, 1111], 345]],
  ['control 1',
   [[3680, 1000, 3680, 1000, 3333, 2345, 1380, 1380, 1000, 3680, 7400],
    [[6, 11, 25, True], [5, 10, 75, False]], 0],
   [[3680, 1000, 3680, 1000, 3333, 1758, 1035, 1035, 750, 2760, 7400], 2447]],
  ['control 2',
   [[7400, 3680, 7400, 3333, 0, 1380, 1111, 3333, 3680, 7400, 1111, 1380],
    [[0, 3, 75, True], [0, 3, 50, False]], 0],
   [[3700, 1840, 3700, 3333, 0, 1380, 1111, 3333, 3680, 7400, 1111, 1380], 9240]]],
 [['boundary: event ends at slot', [[3680, 3680, 3680], [[0, 1, 50, False]], 0],
   [[1840, 3680, 3680], 1840]],
  ['boundary: opted-out event', [[7400, 7400], [[0, 2, 0, True]], 1380], [[7400, 7400], 0]],
  ['boundary: plan below floor', [[1000, 7400], [[0, 2, 0, False]], 1380], [[1000, 1380], 6020]],
  ['regression: event end exclusivity',
   [[7400, 11000, 3680, 3333, 1111, 3680, 11000, 3680, 1111, 2345],
    [[5, 5, 25, False], [7, 11, 25, True]], 0],
   [[7400, 11000, 3680, 3333, 1111, 3680, 11000, 3680, 1111, 2345], 0]],
  ['regression: event end exclusivity (partial repair)',
   [[1380, 1380, 1111, 2345, 1380, 2345], [[6, 11, 0, False], [3, 7, 60, False], [3, 6, 0, False]],
    0],
   [[1380, 1380, 1111, 0, 0, 0], 6070]],
  ['control 1',
   [[0, 1000, 1000, 2345, 0, 3680, 1380, 3680], [[4, 8, 50, True], [5, 10, 75, True]], 0],
   [[0, 1000, 1000, 2345, 0, 3680, 1380, 3680], 0]],
  ['control 2',
   [[3333, 7400, 1000, 2345, 11000, 2345], [[3, 7, 50, False], [5, 6, 25, True]], 2000],
   [[3333, 7400, 1000, 2000, 5500, 2000], 6190]]],
 [['boundary: event ends at slot', [[3680, 3680, 3680], [[0, 1, 50, False]], 0],
   [[1840, 3680, 3680], 1840]],
  ['boundary: opted-out event', [[7400, 7400], [[0, 2, 0, True]], 1380], [[7400, 7400], 0]],
  ['boundary: plan below floor', [[1000, 7400], [[0, 2, 0, False]], 1380], [[1000, 1380], 6020]],
  ['regression: event end exclusivity',
   [[11000, 1380, 3333, 3333, 1111, 1380, 11000, 11000, 2345, 1111],
    [[5, 9, 60, True], [4, 5, 60, False], [1, 6, 0, False]], 2000],
   [[11000, 1380, 2000, 2000, 1111, 1380, 11000, 11000, 2345, 1111], 2666]],
  ['regression: event end exclusivity (partial repair)',
   [[0, 3333, 3333, 0, 1380, 2345, 1111, 11000, 0],
    [[7, 11, 25, False], [3, 4, 0, True], [3, 6, 0, True]], 2000],
   [[0, 3333, 3333, 0, 1380, 2345, 1111, 2750, 0], 8250]],
  ['control 1',
   [[3680, 3680, 1000, 0, 3333, 1000, 3333, 3680],
    [[1, 5, 0, False], [7, 11, 25, False], [6, 6, 60, False]], 2000],
   [[3680, 2000, 1000, 0, 2000, 1000, 3333, 2000], 4693]],
  ['control 2',
   [[1380, 7400, 7400, 1000, 1111, 2345, 1380], [[4, 8, 0, False], [6, 10, 0, False]], 0],
   [[1380, 7400, 7400, 1000, 0, 0, 0], 4836]]],
 [['boundary: event ends at slot', [[3680, 3680, 3680], [[0, 1, 50, False]], 0],
   [[1840, 3680, 3680], 1840]],
  ['boundary: opted-out event', [[7400, 7400], [[0, 2, 0, True]], 1380], [[7400, 7400], 0]],
  ['boundary: plan below floor', [[1000, 7400], [[0, 2, 0, False]], 1380], [[1000, 1380], 6020]],
  ['regression: event end exclusivity',
   [[1380, 3680, 1000, 0, 3680, 7400, 3333, 7400, 3333, 7400, 3680],
    [[8, 11, 0, False], [10, 13, 0, False], [4, 4, 60, False]], 0],
   [[1380, 3680, 1000, 0, 3680, 7400, 3333, 7400, 0, 0, 0], 14413]],
  ['regression: event end exclusivity (partial repair)',
   [[3333, 7400, 1000, 3680, 0, 7400, 1111, 0, 11000], [[6, 10, 50, False]], 0],
   [[3333, 7400, 1000, 3680, 0, 7400, 555, 0, 5500], 6056]],
  ['control 1', [[3333, 0, 1000, 1111, 1380, 7400, 1380, 7400, 3680], [[5, 10, 0, True]], 1380],
   [[3333, 0, 1000, 1111, 1380, 7400, 1380, 7400, 3680], 0]],
  ['control 2', [[2345, 7400, 1111, 3333, 3333, 7400, 3680], [[5, 8, 25, False]], 0],
   [[2345, 7400, 1111, 3333, 3333, 1850, 920], 8310]]]]
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 fixtureActualExpectedOutcome
boundary: event ends at slot[[1840, 3680, 3680], 1840][[1840, 3680, 3680], 1840]Passed
boundary: opted-out event[[7400, 7400], 0][[7400, 7400], 0]Passed
boundary: plan below floor[[1000, 1380], 6020][[1000, 1380], 6020]Passed
regression: event end exclusivity[[0, 0, 1111, 11000, 7400, 2208, 1111, 1380, 11000], 1472][[0, 0, 1111, 11000, 7400, 2208, 1111, 1380, 11000], 1472]Passed
regression: event end exclusivity (partial repair)[[1380, 1000, 3333, 2345, 1000, 1380, 11000, 3333, 2208, 0], 1472][[1380, 1000, 3333, 2345, 1000, 1380, 11000, 3333, 2208, 0], 1472]Passed
control 1[[1000, 3333, 1111, 1380, 2750], 8250][[1000, 3333, 1111, 1380, 2750], 8250]Passed
control 2[[1380, 1000, 1111, 1000, 1000, 2000, 2000, 7400, 1111, 2208, 6600, 1111], 8538][[1380, 1000, 1111, 1000, 1000, 2000, 2000, 7400, 1111, 2208, 6600, 1111], 8538]Passed

SHA-256 / dd841a938c0bc132ff625b15b6de557d93f89150bcfb091dab7ef059196cfef3

Verification & scope

Deterministic stipulated toy contract for teaching; no claim of conformance with any standard, vendor protocol or production controller. 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 2026-09-29T14:51:52.695319+00:00.

Case digest / 03a735c853cb8fc85ebc9379cb3f32cfdd91e2edc357a4011d3a0f5fa68f7924