> [Checker] Start a DFS exploration. Reduction is: dpor.
> [Checker] Execute 1: BARRIER_LOCK(barrier: 0) (stack depth: 1, state: 1, 0 interleaves)
> [Checker] Execute 1: BARRIER_WAIT(barrier: 0) (stack depth: 2, state: 2, 0 interleaves)
> [Checker] Backtracking from 1;1;0
> [Checker] DFS exploration ended. 3 unique states visited; 1 backtracks (3 transition replays, 0 states visited overall)
> [Checker] Start a DFS exploration. Reduction is: dpor.
> [Checker] Execute 1: BARRIER_LOCK(barrier: 0) (stack depth: 1, state: 1, 0 interleaves)
> [Checker] Execute 1: BARRIER_WAIT(barrier: 0) (stack depth: 2, state: 2, 0 interleaves)
> [Checker] Backtracking from 1;1;0
> [Checker] DFS exploration ended. 3 unique states visited; 1 backtracks (3 transition replays, 0 states visited overall)