+> [Checker] Execute 1: MUTEX_UNLOCK(mutex: 0, owner: 2) (stack depth: 4, state: 8, 0 interleaves)
+> [Checker] INDEPENDENT Transitions:
+> [Checker] MUTEX_ASYNC_LOCK(mutex: 0, owner: 1) (state=3)
+> [Checker] MUTEX_UNLOCK(mutex: 0, owner: 2) (state=8)
+> [Checker] Execute 2: MUTEX_WAIT(mutex: 0, owner: 2) (stack depth: 5, state: 9, 0 interleaves)
+> [Checker] Dependent Transitions:
+> [Checker] MUTEX_UNLOCK(mutex: 0, owner: 2) (state=8)
+> [Checker] MUTEX_WAIT(mutex: 0, owner: 2) (state=9)
+> [Checker] Execute 2: MUTEX_UNLOCK(mutex: 0, owner: -1) (stack depth: 6, state: 10, 0 interleaves)
+> [Checker] Dependent Transitions:
+> [Checker] MUTEX_UNLOCK(mutex: 0, owner: 2) (state=8)
+> [Checker] MUTEX_UNLOCK(mutex: 0, owner: -1) (state=10)
+> [Checker] Execution came to an end at 1;1;2;1;2;2;0 (state: 11, depth: 7)
+> [Checker] Backtracking from 1;1;2;1;2;2;0