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Card 469 of 10002026-08-26 issue

Observed arrival · 2026-08-26

LadderProof checks industrial PLC logic before the factory floor does

ladderproof.com Observed source
Editorial interest 84/100 Selection signal · not a rating of the site

A formal-verification product for IEC 61131-3 Ladder programs, aimed at finding logic and concurrency failures in industrial PLCs before deployment.

Landing page captured for the 2026-08-26 issue.

Field notes

The described workflow keeps the original Ladder program intact while adding YAML-based verification rules, then runs ESBMC with Z3 and Bitwuzla before engineers review the verdict together. The page distinguishes the open verification core from licensed executive-interface and NR-12 reporting modules. Its stated operating context is unusually concrete: automated factories and system integrators in Manaus's Industrial District, with benchmarks said to include Controllino and MathWorks cases.

Observed signals

Read the marks

Editorial observations of this landing page, not a rating.

OpenPublic substance visible
$PaidCommerce or pricing visible
PrettyNotable craft visible
ProPolished or operationally mature
NicheUnusually specific use

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ladderproof.com

Landing page observed 2026-08-26. The live site may have changed.