IMP robot duplicate, best hand south, Traveller 9969-1373652601-67693225
GIB explanations for calls are
2D: "Weak two diamond -- 1-4 C; 1-3 H; 1-3 S; 10- HCP; twice rebiddable D; 9+ total points
2N: "2-5 C; 3-5 D; 2-5H; 2-5 S: 14-18 HCP; s"
3C: "Stayman -- 18- total points"
3H: "2-5 C; 3-5 D; 4-5 H; 2-4 S; 14-18 HCP; s"
3N: "3- H; 4 S; 11+ HCP; 18- total points"
The obvious question was: why use Stayman if you are then going to ignore the fit that you have discovered. Better to conceal the info from opponents and just blast 3N
Minor ancillary question: Why place an upper limit of 18 total points on Stayman?
Not that I entirely trust that the explanations provided are consistent with the way that it has been programmed to bid.