After loop:
Block 0: 10 bytes at ADDR, tag: "loop 1"
Block 1: 20 bytes at ADDR, tag: "loop 1"
Block 2: 30 bytes at ADDR, tag: "loop 1"
Total: 3 allocated blocks, 60 allocated bytes
Ready to exit:
Block 0: 10 bytes at ADDR, tag: "loop 1"
Block 1: 20 bytes at ADDR, tag: "loop 1"
Block 2: 200 bytes at ADDR, tag: "next"
Total: 3 allocated blocks, 230 allocated bytes