  For a convenient and Newton non-degenerate singularity, the Milnor number is
computed from the complement of its Newton diagram in the first quadrant,
so-called Kouchnirenko's formula. In this paper, we consider tropical curves
dual to subdivisions of this complement for a plane curve singularity and show
the existence of a tropical curve satisfying a certain formula, which looks
like a well-known formula for a real morsification due to A'Campo and
Gusein-Zade.
