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Record e835c376654a4e31b639861cb54a53fb

FAIL

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

✕FAILanswered "unknown" · model Nemotron 3 Super 120B

finish_reason: stop · tokens in/out: 164/1019 · cost: $0.000472 · latency: 5923.8 ms

belieftemplatestop

verifier_detail: kind=belief;campaign=1;adversarial=1;traps=final_true_state,last_mentioned_location,last_witnessed_by_anyone;foil_score=3.0

trap kind(s) this world was seeded for: final_true_statelast_mentioned_locationlast_witnessed_by_anyone

lineage: e835c376

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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 517 chars · 164 tokens in
At 8:04, Marcus reorganized some papers on the desk. At 8:02, Elliot brought the worn tablet over to the garage. At 8:05, Ingrid refilled a cup of coffee. At 8:06, he checked their email. At 8:03, she took the worn tablet and placed it in the north stairwell. At 8:00, he took the bright wrench and placed it in the garage. At 8:01, Marcus took the bright wrench and placed it in the mail room.

Where does Elliot believe the bright wrench is? Answer with only the location name (or 'unknown' if they have no belief).
Response 1,019 tokens out · finish: stop

unknown
Reasoning 4,027 chars
Model reasoning
We need to parse statements about actions at times. Determine what each person believes about locations based on observations? The question: "Where does Elliot believe the bright wrench is?" We need to infer Elliot's belief given his knowledge from events described. Likely we assume that people know about actions they performed or observed? Usually these puzzles involve tracking beliefs based on who saw what. Need to interpret: Each statement describes an action by a person at a time. Possibly they are aware of where objects are after moving them themselves, but not necessarily others unless they witnessed.

We need to determine Elliot's belief about bright wrench location. Let's list all events:

- 8:04: Marcus reorganized some papers on the desk.
- 8:02: Elliot brought the worn tablet over to the garage.
- 8:05: Ingrid refilled a cup of coffee.
- 8:06: he checked their email. (Who is "he"? ambiguous; likely refers to someone previously mentioned? Could be Marcus? Or maybe generic male? Might be Elliot? Actually earlier we had Elliot (male), Marcus (male?), Ingrid (female). "He" could refer to Marcus? Not sure.)
- 8:03: she took the worn tablet and placed it in the north stairwell. ("she" likely Ingrid? Since Ingrid is female. So Ingrid took the worn tablet and placed it in north stairwell.)
- 8:00: he took the bright wrench and placed it in the garage. ("he" could be Marcus? Or Elliot? But earlier Elliot brought worn tablet to garage at 8:02. This event at 8:00: he took bright wrench and placed it in garage. Who is "he"? Could be Marcus? Because later at 8:01, Marcus took the bright wrench and placed it in the mail room. Wait conflict: If Marcus took bright wrench to garage at 8:00, then at 8:01 Marcus took bright wrench and placed it in mail room - that would be moving it again. That seems plausible: He (Marcus) took bright wrench to garage at 8:00, then at 8:01 Marcus took bright wrench and placed it in mail room. So yes, "he" at 8:00 and 8:01 both refer to Marcus. Then "he checked their email" at 8:06 also likely Marcus. Good.)

Thus timeline:
- 8:00: Marcus takes bright wrench, places it in garage.
- 8:01: Marcus takes bright wrench (from garage?) and places it in mail room.
- 8:02: Elliot brings worn tablet to garage.
- 8:03: Ingrid takes worn tablet and places it in north stairwell.
- 8:04: Marcus reorganizes papers on desk.
- 8:05: Ingrid refills coffee.
- 8:06: Marcus checks email.

Now we need Elliot's belief about bright wrench location. Elliot's known actions: only at 8:02 he brought worn tablet to garage. He didn't interact with bright wrench. Did he observe any actions involving bright wrench? He might have seen Marcus moving it? Not stated. Unless we assume that people are aware of actions that happen in their presence? Typically these puzzles assume that each person only knows about actions they themselves performed, unless they observed others? Not given. Usually we assume they only know about their own actions. So Elliot only knows about his own action: bringing worn tablet to garage. He has no info about bright wrench. Therefore his belief is unknown.

But perhaps we consider that Elliot might have seen Marcus place bright wrench in garage at 8:00 before Elliot arrived at 8:02? If Elliot was present in the garage at 8:00? Not stated. He brought worn tablet to garage at 8:02, so he was in garage at that time. He could have seen the bright wrench there if it was placed there at 8:00 and not moved until 8:01 (Marcus moved it to mail room at 8:01). So timeline: At 8:00 Marcus puts bright wrench in garage. At 8:01 Marcus moves it to mail room. At 8:02 Elliot brings worn tablet to garage. So by the time Elliot arrives at garage (8:02), the bright wrench is already in mail room (since moved at 8:01). Unless Elliot saw it in garage before it was moved? He arrived after the move, so he wouldn't see it there. He didn't see Marcus moving it because not stated. So Elliot has no observation of bright wrench. Thus belief unknown.

Answer: unknown.
Realized dims 7
dimvalue
context_length7.0
coreference1.0
distractors2.0
entity_state2.0
foil_divergence3.0
temporal0.6666666666666666
witness_gap1.0
Latent params 6
paramvalue
chain_length2.0
coref_pressure0.0
distractor_events2.0
filler_events2.0
scramble0.75
witness_cutoff0.0