serial-break-resync

Task gallery / Electrical engineering (RTL) / Version 1

Reference solution (oracle): Unverified
No-op resistance check: Unverified
QA verdict: Not recorded
Aggregate eligibility: Eligible version

The task

Recover bytes from a line idling high. A byte is one low start bit, eight data bits least significant first, then one high stop bit, each BITLEN clock cycles; TopModule declares parameter BITLEN. Ports (i in, o out): clk rst rxi datao 8 valido frameerro breako rst is synchronous, active-high, clearing every output to 0. Synchronize rxi through two flops; use that line. Outputs are registered. A start is accepted the…

Excerpt only; not a complete executable task specification. Task ID task_828beca732214d72 · version 1. Selection status: not fully recorded.

Results by model and effort

This exact task version only. Every rate is passes / valid runs with a Wilson 95% interval; n≤2 remains counts only. Macro aggregation does not apply within a single task. Baselines are summarized in the quality gates, not ranked. A passed no-op resistance check means that doing nothing did not solve the task.

Current evidence

Model / effort	Verifier result [95% Wilson]	Diagnostic labels / valid	HARNESS_ERROR · excluded	Outcome classes

Legacy evidence

Model / effort	Verifier result [95% Wilson]	Diagnostic labels / valid	HARNESS_ERROR · excluded	Outcome classes
Claude Opus 4.8 · default (unverified)	0/10 · 0.0% [0.0%, 27.8%]	0 / 10	0	GOOD_FAILURE: 0 BAD_FAILURE: 0 GOOD_SUCCESS: 0 BAD_SUCCESS: 0

Every recorded run

10 recorded trials, including controls. Diagnostic labels do not replace verifier reward. Labels and quality checks are source declarations, not independently attested here. Internal evidence remains private; a missing public URL is shown explicitly. Records with invalid or absent rewards are not scored.

Run / model	Date / source	Reward / eligibility	Diagnostic class / source	Resources	Evidence
`trial_41a2b5a38fe046a4` Claude Opus 4.8 · default (unverified)	Jul 5, 2026 console	0 · valid	No diagnostic label derived	Tokens: 30,109 Turns: 7 Cost: $1.2118	Not publicly available
`trial_bc21406fd624403d` Claude Opus 4.8 · default (unverified)	Jul 5, 2026 console	0 · valid	No diagnostic label derived	Tokens: 25,632 Turns: 4 Cost: $0.9932	Not publicly available
`trial_5ec4d70e0f2648aa` Claude Opus 4.8 · default (unverified)	Jul 5, 2026 console	0 · valid	No diagnostic label derived	Tokens: 37,155 Turns: 7 Cost: $1.4806	Not publicly available
`trial_86dbc073b5a6471f` Claude Opus 4.8 · default (unverified)	Jul 5, 2026 console	0 · valid	No diagnostic label derived	Tokens: 21,924 Turns: 4 Cost: $0.8574	Not publicly available
`trial_845acfb2893e4179` Claude Opus 4.8 · default (unverified)	Jul 5, 2026 console	0 · valid	No diagnostic label derived	Tokens: 26,067 Turns: 4 Cost: $1.0124	Not publicly available
`trial_ffb01d7cb5d6424b` Claude Opus 4.8 · default (unverified)	Jul 5, 2026 console	0 · valid	No diagnostic label derived	Tokens: 36,248 Turns: 4 Cost: $1.3764	Not publicly available
`trial_ad467c16c47f4646` Claude Opus 4.8 · default (unverified)	Jul 5, 2026 console	0 · valid	No diagnostic label derived	Tokens: 26,413 Turns: 4 Cost: $1.0215	Not publicly available
`trial_c495a7385dbf4930` Claude Opus 4.8 · default (unverified)	Jul 5, 2026 console	0 · valid	No diagnostic label derived	Tokens: 29,363 Turns: 5 Cost: $1.1484	Not publicly available
`trial_2f8427f29f364bfe` Claude Opus 4.8 · default (unverified)	Jul 5, 2026 console	0 · valid	No diagnostic label derived	Tokens: 39,567 Turns: 7 Cost: $1.5764	Not publicly available
`trial_bbbbdb2d4994459e` Claude Opus 4.8 · default (unverified)	Jul 5, 2026 console	0 · valid	No diagnostic label derived	Tokens: 28,185 Turns: 4 Cost: $1.0864	Not publicly available