System 1:
Required function evaluations for rkfstep45: 6180
Required function evaluations for rkstep5:   5292
rkfstep45/rkstep5 = 1.1678004535147393

System 2:
Required function evaluations for rkfstep45: 1248
Required function evaluations for rkstep5:   1314
rkfstep45/rkstep5 = 0.9497716894977168