Final sink mass against accretion time (t_acc,60 is used) for runs A1++, B1++, C1+, and D1. The solid black lines represent the free-fall time of the mass reservoir derived from the analytical model (see Sect. 5.5.1). The behavior of the distributionand the analytical model are very similar except for short accretion times (corresponding to mass ≲0.1 M_⊙), where the physics to be considered is different. This strongly suggests that the mass that built the stars essentially comes from a preexisting deterministic reservoir.