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Record 7902064d84f7412d93b82da71b57d61d

FAIL

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

✕FAILanswered "utility closet" · model Nemotron 3 Nano 30B

finish_reason: stop · tokens in/out: 299/1021 · cost: $0.000219 · latency: 10695.5 ms

belieftemplatestop

verifier_detail: kind=belief;campaign=1

lineage: 7902064d

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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 930 chars · 299 tokens in
At 8:00, Hana brought the sturdy wrench over to the supply closet. At 8:00, Aria happened to be watching. At 8:01, Hana took the sturdy wrench and placed it in the utility closet. At 8:01, Aria happened to be watching. At 8:02, she carried the sturdy wrench to the supply closet. At 8:03, Greta carried the sturdy wrench to the lobby. At 8:03, Aria happened to be watching. At 8:04, Hana carried the sturdy wrench to the break room. At 8:04, Aria noticed this from across the room. At 8:05, Greta took the sturdy wrench and placed it in the utility closet. At 8:06, Aria brought the sturdy box over to the rooftop terrace. At 8:07, Greta carried the sturdy box to the meditation room. At 8:08, Hana reorganized some papers on the desk. At 8:09, Aria refilled a cup of coffee. At 8:10, she checked their email.

Where does Aria believe the sturdy wrench is? Answer with only the location name (or 'unknown' if they have no belief).
Response 1,021 tokens out · finish: stop
utility closet
Reasoning 3,760 chars
Model reasoning
We need to infer what Aria believes about location of sturdy wrench. We have timeline with multiple agents: Hana, Aria, Greta. At 8:00, Hana brought the sturdy wrench over to the supply closet. At 8:00, Aria happened to be watching. So at 8:00, Aria sees Hana bring wrench to supply closet. Then at 8:01, Hana took the sturdy wrench and placed it in the utility closet. At 8:01, Aria happened to be watching. So Aria sees Hana place wrench in utility closet. At 8:02, she (presumably Hana?) carried the sturdy wrench to the supply closet. Wait "she carried the sturdy wrench to the supply closet" - who is "she"? Probably Hana? Actually earlier "Hana took the sturdy wrench and placed it in the utility closet." Then "At 8:02, she carried the sturdy wrench to the supply closet." That seems contradictory: she just placed it in utility closet, now she carries it to supply closet. So maybe "she" refers to Aria? But Aria is not described as carrying wrench. Could be a mistake; maybe "she" refers to Hana again? Let's parse: At 8:01, Hana took the sturdy wrench and placed it in the utility closet. At 8:01, Aria happened to be watching. At 8:02, she carried the sturdy wrench to the supply closet. At 8:03, Greta carried the sturdy wrench to the lobby. At 8:03, Aria happened to be watching. So "she" at 8:02 likely refers to Hana again? Actually after placing in utility closet, she carries it to supply closet. So Hana moves wrench from utility closet to supply closet at 8:02. Then at 8:03, Greta carried the sturdy wrench to the lobby. So Greta moves it from wherever? Probably from supply closet? Not clear. But Aria is watching at 8:03 as well. So Aria sees Greta carry wrench to lobby. Then at 8:04, Hana carried the sturdy wrench to the break room. At 8:04, Aria noticed this from across the room. So Aria sees Hana move wrench to break room. Then at 8:05, Greta took the sturdy wrench and placed it in the utility closet. At 8:06, Aria brought the sturdy box over to the rooftop terrace. At 8:07, Greta carried the sturdy box to the meditation room. At 8:08, Hana reorganized some papers on the desk. At 8:09, Aria refilled a cup of coffee. At 8:10, she checked their email.

We need to know where Aria believes the sturdy wrench is. She has observed multiple movements. She saw initial placement in utility closet at 8:01. Then she saw it moved to supply closet at 8:02 (by Hana). Then she saw it moved to lobby at 8:03 (by Greta). Then she saw it moved to break room at 8:04 (by Hana). Then she saw it placed back in utility closet at 8:05 (by Greta). So after 8:05, the wrench is in utility closet (according to observations). However, later events involve a "sturdy box" not wrench. The wrench may not be mentioned after 8:05. So Aria's belief about location of sturdy wrench would be based on last thing she observed about it. She observed at 8:05 that Greta placed it in the utility closet. She also observed at 8:04 that Hana carried it to break room, but then at 8:05 she saw Greta place it in utility closet. So she would think it's in utility closet at 8:05 onward, unless she later sees it moved again. She does not see any further movement of wrench after 8:05. So she believes it's in utility closet.

But need to consider that she might have seen it moved to break room at 8:04, but then later at 8:05 she saw Greta take the sturdy wrench and place it in utility closet. So she would update belief to utility closet. So answer: utility closet.

Check if any ambiguity: The question: "Where does Aria believe the sturdy wrench is? Answer with only the location name (or 'unknown' if they have no belief)." So we answer "utility closet". Ensure only location name, no extra punctuation? Probably just "utility closet". Provide only that.
Realized dims 6
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context_length11.0
coreference3.0
distractors2.0
entity_state6.0
temporal0.0
witness_gap1.0
Latent params 6
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chain_length6.0
coref_pressure0.0
distractor_events2.0
filler_events2.0
scramble0.0
witness_cutoff0.0