addDependencyTask(t,u)
i1 : for i to 5 do t_i = createTask(() -> i)
i2 : for i from 1 to 5 do addDependencyTask(t_i, t_(i - 1))
i3 : schedule t_0 o3 = <<task, created>> o3 : Task
i4 : taskResult t_5 o4 = 5