insert_committed [0] v0 k1 
delete_committed [100] v0 
insert_committed [100] v100 k1 
commit_any [100] v0 
commit_any [100] v100 
delete_committed [200] v100 
insert_committed [200] v200 k1 
commit_any [200] v100 
commit_any [200] v200 
