  Here we present an explicit counterexample to a bimodality concept as the
unique signal of first order phase transition. Using an exact solution of the
simplified version of the statistical multifragmentation model we demonstrate
that the bimodal distributions can naturally appear in infinite system without
a phase transition in the regions of the negative values of the surface tension
coefficient. Also we propose a new parameterization for the compressible
nuclear liquid which is consistent with the L. van Hove axioms of statistical
mechanics. As a result the proposed model does not lead to the irregular
behaviour of the isotherms in the mixed phase region which is typical for
mean-field models. Peculiarly, the suggested approach to account for the
nuclear liquid compressibility automatically leads to an appearance of an
additional state that in many respects resembles the physical antinuclear
matter.
