air compressor load/unload with minimum-off interlock (ST twin)¶


suite id	`st_compressor_cycle`
domain	manufacturing
language	ST
difficulty	easy
validation status	candidate
origin	authored
license	CC-BY-4.0
syntax pair of	`g_compressor_cycle`

Structured Text rendering of g_compressor_cycle, for cross-language comparison of the same machine

What is proved¶

From benchmarks/manufacturing/st_compressor_cycle/props.yaml. What each kind claims, and what it becomes on either route, is on The properties we prove.

id	kind	claim	requirement
`P1`	`invariant`	`!(Load && PressHigh)`	The compressor never loads at or above the cut-out pressure.

Variants¶

file	expected verdict	violates	method
`compressor_cycle.st`	SAFE	none	expert

Files¶

file	what it is	size	sha256
`benchmark.yml`	benchmark metadata	0.6 KB	`497113a92dd0`
`compressor_cycle.st`	structured text	0.5 KB	`3fcb11bec632`
`props.yaml`	property file	0.2 KB	`1aff1839ace5`

Recorded runs¶

A task can carry two routes. ld is ESBMC's ladder front end reading the program directly. via C is the same solver reached through Beremiz and MatIEC, which is the only route that reaches ST, IL, FBD and SFC; see How ESBMC-PLC works.

st_compressor_cycle__compressor_cycle__viac via C (props.yaml, expected SAFE): master SAFE