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Record 0d481e9dc33447dea8c701f9fa9d00ef

FAIL

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

✕FAILanswered "ANSWER: 105" · model Gemma 3 27B

finish_reason: stop · tokens in/out: 297/910 · cost: $0.000303 · latency: 13465.3 ms

code_tracetemplatestop

verifier_detail: kind=code_trace;campaign=1;query=final_value;detail=foil:flat_scope,truncating_modulo;n_stmts=31;trace_len=36;traps=aliasing_on=0;late_binding_on=1;shadowing_on=1;inclusive_range_trap_on=1;negative_modulo_on=1;mutable_default_on=1;confusability=0

trap kind(s) this world was seeded for: aliasing_on=0

lineage: 0d481e9d

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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 851 chars · 297 tokens in
Here is a short Python program.

```python
base = 8
budget = 7
value = 4
value = value * 2
if value > base:
    value = value * 2
    value = budget if budget < budget else budget + 2
else:
    base += value * 2
    value = base if base < value else value + 4
weight = 2

def combine(amt):
    return amt + weight

weight = 8
base += combine(4)

def shift_by(k):
    value = k * 2 + 1
    return value + 1

level = shift_by(3)
base += value + level
for r in range(6):
    base += r * 2
reserve = budget - 13
width = reserve % 5
base += width

def tally_up(q, val=[]):
    val.append(q)
    return len(val) + q

height = tally_up(2)
credit = tally_up(4)
base += credit
base += budget * 2
```

After this program runs, what is the value of `base`? Work through it carefully, then give the final answer on its own last line as `ANSWER: <python literal>`.
Response 910 tokens out · finish: stop
Let's trace the execution of the Python code step by step.

1. `base = 8`
2. `budget = 7`
3. `value = 4`
4. `value = value * 2`  => `value = 8`
5. `if value > base:` (8 > 8 is false)
6. `else:`
7. `base += value * 2` => `base += 8 * 2` => `base += 16` => `base = 24`
8. `value = base if base < value else value + 4` => `value = 24 if 24 < 8 else 8 + 4` => `value = 8 + 4` => `value = 12`
9. `weight = 2`
10. `def combine(amt): ...` (function definition, doesn't affect current state)
11. `weight = 8`
12. `base += combine(4)` => `base += 4 + 8` => `base += 12` => `base = 36`
13. `def shift_by(k): ...` (function definition, doesn't affect current state)
14. `level = shift_by(3)` => `level = 3 * 2 + 1` => `level = 7` => `level = 7 + 1` => `level = 8`
15. `base += value + level` => `base += 12 + 8` => `base += 20` => `base = 56`
16. `for r in range(6):`
   - `r = 0`: `base += r * 2` => `base += 0 * 2` => `base += 0` => `base = 56`
   - `r = 1`: `base += r * 2` => `base += 1 * 2` => `base += 2` => `base = 58`
   - `r = 2`: `base += r * 2` => `base += 2 * 2` => `base += 4` => `base = 62`
   - `r = 3`: `base += r * 2` => `base += 3 * 2` => `base += 6` => `base = 68`
   - `r = 4`: `base += r * 2` => `base += 4 * 2` => `base += 8` => `base = 76`
   - `r = 5`: `base += r * 2` => `base += 5 * 2` => `base += 10` => `base = 86`
17. `reserve = budget - 13` => `reserve = 7 - 13` => `reserve = -6`
18. `width = reserve % 5` => `width = -6 % 5` => `width = -1`
19. `base += width` => `base += -1` => `base = 85`
20. `def tally_up(q, val=[]): ...` (function definition, doesn't affect current state)
21. `height = tally_up(2)` => `val = [2]`, `len(val) + q = 1 + 2 = 3` => `height = 3`
22. `credit = tally_up(4)` => `val = [2, 4]`, `len(val) + q = 2 + 4 = 6` => `credit = 6`
23. `base += credit` => `base += 6` => `base = 91`
24. `base += budget * 2` => `base += 7 * 2` => `base += 14` => `base = 105`

ANSWER: 105
Reasoning not captured

(no reasoning captured)

Realized dims 17
dimvalue
aliasing_on0.0
answer_size3.0
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_matches2.0
n_live_aliases0.0
n_statements31.0
n_variables9.0
negative_modulo_on1.0
shadowing_on1.0
trace_length36.0
traps_on5.0
Latent params 11
paramvalue
aliasing_on0.0
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_on1.0
shadowing_on1.0