Data to …… trials

Record 4887379281d44865a79c8bc59444df5e

FAIL

Verdict and provenance first; raw prompt/response/reasoning below, collapsed.

✕FAILanswered "ANSWER: [8, 3, 1, 14, 12, 35, 23, 1, 2, 2]" · model Gemma 3 27B

finish_reason: stop · tokens in/out: 254/780 · cost: $0.000259 · latency: 9045.7 ms

code_tracetemplatestop

verifier_detail: kind=code_trace;campaign=1;query=final_value;detail=wrong_value;n_stmts=26;trace_len=29;traps=aliasing_on=1;late_binding_on=1;shadowing_on=1;inclusive_range_trap_on=1;negative_modulo_on=0;mutable_default_on=1;confusability=0

trap kind(s) this world was seeded for: aliasing_on=1

lineage: 48873792

← prev trial · trial 114 of 133 · next trial →

Why did it fail? Nemotron 3 Ultra · live on Nebius Token Factory

Ultra reads the prompt, this answer, the verified correct answer and the difficulty settings, then explains the mistake. The verifier's own classification is shown next to it for comparison.

Prompt 695 chars · 254 tokens in
Here is a short Python program.

```python
queue = [8, 3, 1]
margin = 6
rate = 7
queue.append(rate * 2)
queue.append(margin * 2)
codes = queue
codes += [12]
margin += rate
score = 5

def combine(q):
    return q * score

score = 7
queue.append(combine(7))

def bump(val):
    margin = val * 2 + 1
    return margin + 1

height = bump(4)
queue.append(margin + height)
for j in range(1, 3):
    queue.append(j)

def measure(bag, w=[]):
    w.append(bag)
    return len(w)

amount = measure(9)
tally = measure(7)
queue.append(tally)
```

After this program runs, what is the value of `queue`? Work through it carefully, then give the final answer on its own last line as `ANSWER: <python literal>`.
Response 780 tokens out · finish: stop
Let's trace the execution of the Python code step by step.

1. `queue = [8, 3, 1]`
2. `margin = 6`
3. `rate = 7`
4. `queue.append(rate * 2)`: `queue` becomes `[8, 3, 1, 14]`
5. `queue.append(margin * 2)`: `queue` becomes `[8, 3, 1, 14, 12]`
6. `codes = queue`: `codes` is now `[8, 3, 1, 14, 12]`
7. `codes += [12]`: `codes` becomes `[8, 3, 1, 14, 12, 12]` (Note: `codes` is a different variable than `queue`)
8. `margin += rate`: `margin` becomes `6 + 7 = 13`
9. `score = 5`
10. `def combine(q): ...` and `def bump(val): ...` and `def measure(bag, w=[]): ...` are defined.
11. `score = 7`
12. `queue.append(combine(7))`: `combine(7)` returns `7 * 5 = 35`. `queue` becomes `[8, 3, 1, 14, 12, 35]`
13. `height = bump(4)`: `bump(4)` calculates `margin = 4 * 2 + 1 = 9`, then `9 + 1 = 10`. `height` becomes `10`.
14. `queue.append(margin + height)`: `margin + height = 13 + 10 = 23`. `queue` becomes `[8, 3, 1, 14, 12, 35, 23]`
15. `for j in range(1, 3): ...`:
   - `j = 1`: `queue.append(1)`: `queue` becomes `[8, 3, 1, 14, 12, 35, 23, 1]`
   - `j = 2`: `queue.append(2)`: `queue` becomes `[8, 3, 1, 14, 12, 35, 23, 1, 2]`
16. `amount = measure(9)`: `measure(9)` appends 9 to `w` (which is initially `[]`), so `w` becomes `[9]`. It returns `len(w) = 1`. `amount` becomes `1`.
17. `tally = measure(7)`: `measure(7)` appends 7 to `w` (which is now `[9]`), so `w` becomes `[9, 7]`. It returns `len(w) = 2`. `tally` becomes `2`.
18. `queue.append(tally)`: `queue` becomes `[8, 3, 1, 14, 12, 35, 23, 1, 2, 2]`

ANSWER: [8, 3, 1, 14, 12, 35, 23, 1, 2, 2]
Reasoning not captured

(no reasoning captured)

Realized dims 17
dimvalue
aliasing_on1.0
answer_size38.0
distractor_fraction0.0
identifier_confusability0.0
inclusive_range_trap_on1.0
late_binding_on1.0
max_nesting1.0
mutable_default_on1.0
n_closures1.0
n_foil_matches0.0
n_live_aliases1.0
n_statements26.0
n_variables8.0
negative_modulo_on0.0
shadowing_on1.0
trace_length29.0
traps_on5.0
Latent params 11
paramvalue
aliasing_on1.0
distractor_fraction0.0
identifier_confusability0.0
inclusive_range_trap_on1.0
late_binding_on1.0
max_nesting1.0
mutable_default_on1.0
n_statements18.0
n_variables3.0
negative_modulo_on0.0
shadowing_on1.0