test-models/wf_systemRecursion/wf_systemRecursion.dzn:22:1: error: system composition of `C3' is recursive
test-models/wf_systemRecursion/wf_systemRecursion.dzn:29:1: error: system composition of `C4' is recursive
test-models/wf_systemRecursion/wf_systemRecursion.dzn:40:1: error: system composition of `C6' is recursive
