starting
round 0 trimming to 7 trying 4peak model... converged. score:  220468102876.825
round 1 trimming to 12 trying 4peak model... converged. score:  221629466989.963
round 2 trimming to 17 trying 4peak model... converged. score:  279772306077.669
round 3 trimming to 22 trying 4peak model... converged. score:  541450077222.046
done