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Record f7375aa898074bda94a9fda0b44a1789

FAIL

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

✕FAILanswered "cafeteria" · model Nemotron 3 Nano 30B

finish_reason: stop · tokens in/out: 270/771 · cost: $0.000168 · latency: 9243.2 ms

belieftemplatestop

verifier_detail: kind=belief;campaign=1

lineage: f7375aa8

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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 862 chars · 270 tokens in
At 8:00, Gideon brought the small box over to the west wing. At 8:00, Lucas noticed this from across the room. At 8:01, he carried the small box to the boiler room. At 8:02, Jasper took the small box and placed it in the photo studio. At 8:02, Lucas was nearby and saw this happen. At 8:03, Gideon brought the small box over to the cafeteria. At 8:03, Lucas was nearby and saw this happen. At 8:04, he brought the small box over to the boiler room. At 8:05, Jasper carried the small box to the cafeteria. At 8:06, Gideon moved the green box into the cafeteria. At 8:07, Jasper moved the green box into the atrium. At 8:08, Gideon reorganized some papers on the desk. At 8:09, Jasper refilled a cup of coffee. At 8:10, Lucas checked their email.

Where does Lucas believe the small box is? Answer with only the location name (or 'unknown' if they have no belief).
Response 771 tokens out · finish: stop
cafeteria
Reasoning 2,934 chars
Model reasoning
We need to infer Lucas's belief about location of the small box. We have timeline events and Lucas observations.

At 8:00, Gideon brought the small box over to the west wing. At 8:00, Lucas noticed this from across the room. So Lucas sees Gideon bring small box to west wing. At 8:01, he carried the small box to the boiler room. So Lucas sees that? Actually "he carried the small box to the boiler room" – who is "he"? Probably Lucas? Wait: At 8:01, he carried the small box to the boiler room. Who is "he"? Could be Lucas? The narrative: "At 8:01, he carried the small box to the boiler room." The antecedent likely Lucas, because earlier "Lucas noticed this from across the room." Then "he carried the small box to the boiler room." So Lucas carried it to boiler room. At 8:02, Jasper took the small box and placed it in the photo studio. At 8:02, Lucas was nearby and saw this happen. So Lucas sees Jasper moving the small box to photo studio. At 8:03, Gideon brought the small box over to the cafeteria. At 8:03, Lucas was nearby and saw this happen. So Lucas sees Gideon moving small box to cafeteria. At 8:04, he brought the small box over to the boiler room. At 8:04, who? Probably Lucas again? He brought the small box over to the boiler room. So Lucas moves it back to boiler room. At 8:05, Jasper carried the small box to the cafeteria. At 8:05, Lucas was nearby and saw this happen. So Lucas sees Jasper moving small box to cafeteria. At 8:06, Gideon moved the green box into the cafeteria. At 8:07, Jasper moved the green box into the atrium. At 8:08, Gideon reorganized some papers on the desk. At 8:09, Jasper refilled a cup of coffee. At 8:10, Lucas checked their email.

We need to determine where Lucas believes the small box is. He has observed multiple movements. He saw it initially at west wing, then carried to boiler room (by himself), then saw Jasper take it to photo studio, then saw Gideon bring it to cafeteria, then saw himself bring it back to boiler room, then saw Jasper carry it to cafeteria. So after 8:05, the small box is at cafeteria (Jasper carried it there). Did Lucas see any later movement of the small box? No further mention of small box after 8:05. So Lucas's belief likely is that the small box is in the cafeteria, because that's the last location he observed it being moved to, and he saw it being carried there at 8:05. He also saw it being moved earlier but not after that. So answer: cafeteria.

But need to consider if Lucas might think it's somewhere else due to confusion? He saw it being moved to cafeteria at 8:03 by Gideon, then at 8:05 Jasper carried it to cafeteria (so it's already there). Actually at 8:03 Gideon brought the small box to cafeteria, and at 8:05 Jasper carried the small box to the cafeteria (maybe from somewhere else). So after 8:05, the small box is in cafeteria. He didn't see any further moves. So he believes it's in cafeteria.

Thus answer: cafeteria.
Realized dims 6
dimvalue
context_length11.0
coreference3.0
distractors2.0
entity_state6.0
temporal0.0
witness_gap1.0
Latent params 6
paramvalue
chain_length6.0
coref_pressure0.0
distractor_events2.0
filler_events2.0
scramble0.0
witness_cutoff0.0