Record 56f86b37b5194620bcc8f38ca80f2017

FAIL

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

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

finish_reason: stop · tokens in/out: 156/382 · cost: $0.000084 · latency: 4734.2 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: 56f86b37

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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 484 chars · 156 tokens in

At 8:00, Rosa brought the dusty basket over to the reception area. At 8:01, Dana brought the dusty basket over to the garage. At 8:02, Rosa brought the old tablet over to the garage. At 8:03, she moved the old tablet into the break room. At 8:04, Dana reorganized some papers on the desk. At 8:05, Nadia refilled a cup of coffee. At 8:06, Rosa checked their email.

Where does Rosa believe the dusty basket is? Answer with only the location name (or 'unknown' if they have no belief).

Response 382 tokens out · finish: stop

reception

Reasoning 1,486 chars

Model reasoning

We need to infer where Rosa believes the dusty basket is. We have timeline of actions. At 8:00, Rosa brought the dusty basket over to the reception area. So she moved it there. At 8:01, Dana brought the dusty basket over to the garage. So Dana moved it from reception? Or maybe she took it from wherever? The basket was at reception after Rosa's action. Then Dana brings it to garage at 8:01. So the basket is now in garage. At 8:02, Rosa brings the old tablet to garage. At 8:03, she moves the old tablet into break room. At 8:04, Dana reorganizes papers on desk. At 8:05, Nadia refills coffee. At 8:06, Rosa checks email.

Question: Where does Rosa believe the dusty basket is? We need to consider Rosa's belief about location of dusty basket. She initially moved it to reception at 8:00. Then at 8:01, Dana moved it to garage. Did Rosa know that? Probably not; she might not be aware that Dana moved it. So Rosa's belief would be that the dusty basket is still in the reception area (where she placed it). Unless she saw Dana moving it. The timeline doesn't indicate that Rosa observed Dana moving it. So she likely still believes it's in reception. So answer: reception.

But need to output only location name or 'unknown'. So "reception". Should we include "reception area"? The location name likely "reception". The prompt says "Answer with only the location name (or 'unknown' if they have no belief)." So we can answer "reception". Probably just "reception". Let's output that.

Realized dims 7

dim	value
context_length	7.0
coreference	3.0
distractors	2.0
entity_state	2.0
foil_divergence	3.0
temporal	0.0
witness_gap	1.0

Latent params 6

param	value
chain_length	2.0
coref_pressure	0.0
distractor_events	2.0
filler_events	2.0
scramble	0.0
witness_cutoff	0.675