  We extend the results of planetary formation synthesis by computing the
long-term evolution of synthetic systems from the clearing of the gas disk into
the dynamical evolution phase. We use the symplectic integrator SyMBA to
numerically integrate the orbits of planets for 100 Ma, using populations from
previous studies as initial conditions.We show that within the populations
studied, mass and semi-major axis distributions experience only minor changes
from post-formation evolution. We also show that, depending upon their initial
distribution, planetary eccentricities can statistically increase or decrease
as a result of gravitational interactions. We find that planetary masses and
orbital spacings provided by planet formation models do not result in
eccentricity distributions comparable to observed exoplanet eccentricities,
requiring other phenomena such as e.g. stellar fly-bys to account for observed
eccentricities.
