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Record 50549217c8164ea2a6a069b92382862a

PASS

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

✓PASSanswered "ANSWER: [7, 9, 2, 4]" · model Gemma 4 31B QAT

finish_reason: stop · tokens in/out: 123/300 · cost: $0.000102 · latency: 58932.9 ms

code_tracetemplatestop

verifier_detail: kind=code_trace;campaign=1;query=final_value;detail=correct;n_stmts=6;trace_len=6;traps=aliasing_on=0;late_binding_on=0;shadowing_on=0;inclusive_range_trap_on=0;negative_modulo_on=0;mutable_default_on=0;opaque_literal_on=0;dialect_rules=0;confusability=0

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

lineage: 50549217

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Prompt 327 chars · 123 tokens in
Here is a short Python program.

```python
nums = [7, 9]
bins = [0, 2, 7, 9]
values = [2, 7]
nums.append(len(values))
values = values + [4]
nums.append(len(bins))
```

After this program runs, what is the value of `nums`? Work through it carefully, then give the final answer on its own last line as `ANSWER: <python literal>`.
Response 300 tokens out · finish: stop
To find the final value of `nums`, let's trace the program step-by-step:

1.  **Initialization:**
    *   `nums = [7, 9]`
    *   `bins = [0, 2, 7, 9]`
    *   `values = [2, 7]`

2.  **First operation: `nums.append(len(values))`**
    *   `len(values)` is `2` (since `values` is `[2, 7]`).
    *   `nums` becomes `[7, 9, 2]`.

3.  **Second operation: `values = values + [4]`**
    *   `values` becomes `[2, 7, 4]`.
    *   (Note: This does not affect `nums` at this moment).

4.  **Third operation: `nums.append(len(bins))`**
    *   `len(bins)` is `4` (since `bins` is `[0, 2, 7, 9]`).
    *   `nums` becomes `[7, 9, 2, 4]`.

Final state of `nums`: `[7, 9, 2, 4]`

ANSWER: [7, 9, 2, 4]
Reasoning not captured

(no reasoning captured)

Realized dims 18
dimvalue
aliasing_on0.0
answer_size12.0
distractor_fraction0.0
identifier_confusability0.0
inclusive_range_trap_on0.0
late_binding_on0.0
max_nesting0.0
mutable_default_on0.0
n_closures0.0
n_foil_matches0.0
n_live_aliases0.0
n_statements6.0
n_variables3.0
negative_modulo_on0.0
opaque_literal_on0.0
shadowing_on0.0
trace_length6.0
traps_on0.0
Latent params 13
paramvalue
aliasing_on0.0
dialect_rules0.0
distractor_fraction0.0
identifier_confusability0.0
inclusive_range_trap_on0.0
late_binding_on0.0
max_nesting0.0
mutable_default_on0.0
n_statements6.0
n_variables3.0
negative_modulo_on0.0
opaque_literal_on0.0
shadowing_on0.0