sectional door with photo-eye reversal (ST twin)¶


suite id	`st_door_reversal`
domain	building_automation
language	ST
difficulty	easy
validation status	candidate
origin	authored
license	CC-BY-4.0
syntax pair of	`g_door_reversal`

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

What is proved¶

From benchmarks/building_automation/st_door_reversal/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`	`!(MoveDown && Beam)`	The door never drives down while the photo-eye beam is broken.

Variants¶

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

Files¶

file	what it is	size	sha256
`benchmark.yml`	benchmark metadata	0.5 KB	`5b70327ad9ed`
`door_reversal.st`	structured text	0.7 KB	`5aca3cacd2c9`
`props.yaml`	property file	0.2 KB	`61809139c726`

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