starting
round 0 trimming to 15 trying 4peak model... converged. score:  34882032.0114038
round 1 trimming to 20 trying 4peak model... converged. score:  34882673.1851225
round 2 trimming to 25 trying 4peak model... converged. score:  34995623.6821361
round 3 trimming to 30 trying 4peak model... converged. score:  36075239.6628756
done