def producerInfo = selectNextTaskNode()

        assert producerInfo.task == producer
        assertNoTaskReadyToStart()

        finishedExecuting(producerInfo)
        def consumerInfo = selectNextTaskNode()

        assert consumerInfo.task == consumer
        assertNoTaskReadyToStart()

        finishedExecuting(consumerInfo)
        def destroyerInfo = selectNextTaskNode()