During 0-1
    Tasks 1, 2, and 4 complete initiate
    Task 3 is aborted (claim exceeds total in system)
    At 1, 4 units available

During 1-2
    Task 1 completes its request (i.e., the request is granted)
    Task 2 completes its request (i.e., the request is granted)
    Task 4's request cannot be granted (state would not be safe)
    At 2, 2 units available; task 4 has waited 1

During 2-3
    First check blocked tasks
        Task 4's request cannot be granted
    Task 1 releases
    Task 2 completes its request
    At 3, 2 units available; task 4 has waited 1

During 3-4
    First check blocked tasks
        Task 4's request cannot be granted
    Task 1's request cannot be granted
    Task 2 releases and terminates at 4
    At 4, 4 units available; task 4 has waited 3; task 1 has waited 1

During 4-5
    First check blocked tasks
        Task 4 completes its request
	Task 1's request cannot be granted
    At 5, 2 units available; task 4 has waited 3; task 1 has waited 2

During 5-6
    First check blocked tasks
        Task 1's request cannot be granted
    Task 4 completes its request
    At 6, 1 unit available;  task 4 has waited 3; task 1 has waited 3

During 6-7
    First check blocked tasks
        Task 1's request cannot be granted
    Task 4 releases and terminates at 7
    At 7, 4 units available; task 4 has waited 3; task 1 has waited 4

During 7-8
    First check blocked tasks
        Task 1 completes its request
    At 8, 1 unit available; task 4 has waited 3; task 1 has waited 4

During 8-9
    Task releases and terminates at 9