>ERASE_ALL
>LOAD step1
$now run experiment.py
$now run -b experiment.py
$now run -e Tracer experiment.py
>LOAD step2
$now run experiment.py
>LOAD step3
$now restore 1
>LOAD step4
$now run experiment.py
$now restore 5
$now run experiment.py
>LOAD step5
$now run experiment.py
