Evolution of the eccentricities of planets b (red) and c (green) during 20 kyr for three different models. In the top picture the initial eccentricity of planet b is set at zero, but mutual gravitational perturbations increase its value to 0.4 in less than 2 kyr (Table 4). In the middle figure we included general relativity, which calms down the eccentricity variations of the innermost planet, but still did not prevent the eccentricity of planet c to reach high values. In the bottom figure we use a model where the eccentricities of both planets were previously damped by tidal dissipation (Table 7). This last solution is stable at least for 1 Myr.