SubstrateStateMachine is used at run time in 4 crates. It is a direct run-time dependency in 3 crates.

Depender (with downloads and own rev deps) SubstrateStateMachine version
1.0K 1 grandpa-verifier ^16.0.0
1.0K ismp-grandpa ^16.0.0
140 1 ismp-parachain ^16.0.0