Definition syncStep (isCoarse:bool) :
forall {tid0 ms m},
containsThread ms tid0 -> mem_compatible ms m ->
thread_pool -> mem -> sync_event -> Prop:=
@ext_step isCoarse.

Lemma syncstep_not_running:
forall b i tp m cnt cmpt tp' m' tr,
@syncStep b i tp m cnt cmpt tp' m' tr ->
forall cntj q, ~ @getThreadC _ _ _ i tp cntj = Krun q.