The present disclosure includes methods, devices, and systems for inferring system-level properties. One or more embodiments include generating a constraint model based on a system model having a number of components at different levels of abstraction and on a number of verified component properties. The constraint model can include a number of mission constraints modeling one or more mission requirements, a number of system constraints modeling one or more system-level properties, mid a number of component constraints modeling one or more component properties. One or more embodiments can include analyzing the constraint model with a constraint solver to determine whether one or more particular system-level properties can be inferred from the constraint model.