starting
round 0 trimming to 11 trying 4peak model... converged. score:  8351798984874.69
round 1 trimming to 16 trying 4peak model... converged. score:  8348606967840.26
round 2 trimming to 21 trying 4peak model... converged. score:  8349015336998.65
round 3 trimming to 26 trying 4peak model... converged. score:  8459463190066.2
done