Record f68a3413361042e9973f8de677a0761b

FAIL

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

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✕FAILanswered "server room" · model gpt-oss-120b

finish_reason: stop · tokens in/out: 714/558 · cost: $0.000442 · latency: 427589.0 ms

belieftemplatestop

verifier_detail: kind=belief;campaign=1

lineage: f68a3413

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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 2,400 chars · 714 tokens in

At 8:19, Lena carried the dusty wrench to the library. At 8:20, Nadia took the dusty wrench and placed it in the archive room. At 8:21, Lena took the dusty wrench and placed it in the utility closet. At 8:22, Nadia took the dusty wrench and placed it in the observation deck. At 8:23, Uma took the dusty wrench and placed it in the reception area. At 8:24, Wyatt took the dusty wrench and placed it in the library. At 8:25, Dana took the dusty wrench and placed it in the print room. At 8:26, Noor brought the dusty wrench over to the reception area. At 8:27, Wyatt brought the dusty wrench over to the break room. At 8:28, Dana took the dusty wrench and placed it in the print room. At 8:29, Noor brought the dusty wrench over to the library. At 8:30, Gideon reorganized some papers on the desk. At 8:31, Wyatt refilled a cup of coffee. At 8:32, Tobias checked their email. At 8:33, Gideon checked their email. At 8:34, Wyatt reorganized some papers on the desk. At 8:35, Tobias made a quick phone call. At 8:36, Gideon made a quick phone call. At 8:11, Uma carried the dusty wrench to the reception area. At 8:00, Nadia brought the cracked basket over to the break room. At 8:01, Noor carried the cracked basket to the south stairwell. At 8:02, Tobias carried the cracked basket to the archive room. At 8:03, Gideon took the cracked basket and placed it in the south stairwell. At 8:04, Nadia carried the cracked basket to the library. At 8:05, Wyatt brought the cracked basket over to the server room. At 8:06, Noor brought the cracked basket over to the utility closet. At 8:07, Nadia brought the cracked basket over to the server room. At 8:08, Uma carried the cracked basket to the archive room. At 8:09, Gideon carried the cracked basket to the utility closet. At 8:18, Noor carried the dusty wrench to the north stairwell. At 8:10, he moved the dusty wrench into the south stairwell. At 8:12, Wyatt moved the dusty wrench into the print room. At 8:13, Uma took the dusty wrench and placed it in the garage. At 8:14, Noor took the dusty wrench and placed it in the utility closet. At 8:15, Uma took the dusty wrench and placed it in the archive room. At 8:16, Nadia moved the dusty wrench into the north stairwell. At 8:17, Gideon moved the dusty wrench into the garage.

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

Response 558 tokens out · finish: stop

server room

Reasoning 2,576 chars

Model reasoning

We need to parse the timeline and determine Wyatt's belief about the cracked basket location. This is a belief tracking problem: each person may have beliefs based on what they observed. We need to infer what Wyatt believes the cracked basket is at the end of the timeline (presumably after all events). We need to consider what Wyatt knows: events he observes (maybe all events? Usually in such puzzles, each person only knows events they are present for or that involve them). However the problem statement doesn't specify observation rules. Usually these puzzles assume that each person knows only events they are directly involved in (i.e., they see when they move something, and maybe they see others moving if they are present). But we have no info about who sees what. Could be that each person knows all events (common knowledge). But then Wyatt would know the final location of cracked basket based on all moves. Let's see final location of cracked basket: timeline for cracked basket:

8:00 Nadia brought cracked basket to break room.
8:01 Noor carried cracked basket to south stairwell.
8:02 Tobias carried cracked basket to archive room.
8:03 Gideon took cracked basket and placed it in south stairwell.
8:04 Nadia carried cracked basket to library.
8:05 Wyatt brought cracked basket over to server room.
8:06 Noor brought cracked basket over to utility closet.
8:07 Nadia brought cracked basket over to server room.
8:08 Uma carried cracked basket to archive room.
8:09 Gideon carried cracked basket to utility closet.
8:11 Uma carried dusty wrench to reception area (irrelevant)
... then later events about dusty wrench etc.
No more cracked basket moves after 8:09. So final location of cracked basket is utility closet (after Gideon moved it at 8:09). So actual location is utility closet.

Now Wyatt's belief: Wyatt was involved at 8:05 (brought cracked basket to server room). He may have observed later moves? At 8:06 Noor moved it to utility closet; Wyatt may not know. At 8:07 Nadia moved it to server room; again Wyatt may not know. At 8:08 Uma moved to archive; 8:09 Gideon moved to utility closet. Unless Wyatt observed those, his belief remains at server room (the last he saw). Also Wyatt may have later actions with dusty wrench but not cracked basket.

Thus likely answer: server room.

But need to consider if Wyatt could have observed later moves because maybe they are in same area? Not given. Usually belief puzzles assume each person knows only actions they are directly involved in. So Wyatt's belief is server room.

Thus answer: server room.

Realized dims 5

dim	value
context_length	37.0
coreference	13.0
distractors	20.0
entity_state	10.0
temporal	0.5405405405405406

Latent params 5

param	value
chain_length	10.0
coref_pressure	5.0
distractor_events	20.0
filler_events	2.0
scramble	1.0