Gurobi 5.0.1 (linux64) logging started Wed Apr 24 00:52:49 2013 Optimize a model with 286 rows, 6786 columns and 13546 nonzeros Presolve time: 0.01s Presolved: 286 rows, 6786 columns, 13546 nonzeros Variable types: 6760 continuous, 26 integer (26 binary) Root relaxation: objective 3.330944e+04, 437 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 33309.4414 0 4 - 33309.4414 - - 0s H 0 0 33706.000000 33309.4414 1.18% - 0s 0 0 33351.3542 0 2 33706.0000 33351.3542 1.05% - 0s H 0 0 33578.333333 33351.3542 0.68% - 0s H 0 0 33490.000000 33351.3542 0.41% - 0s 0 0 33367.1409 0 1 33490.0000 33367.1409 0.37% - 0s 0 0 33367.1409 0 1 33490.0000 33367.1409 0.37% - 0s 0 0 33367.1409 0 1 33490.0000 33367.1409 0.37% - 0s 0 0 33367.1409 0 1 33490.0000 33367.1409 0.37% - 0s 0 0 33398.7625 0 2 33490.0000 33398.7625 0.27% - 0s 0 0 33485.2265 0 2 33490.0000 33485.2265 0.01% - 0s * 0 0 0 33486.000000 33486.0000 0.0% - 0s Cutting planes: Implied bound: 22 Explored 0 nodes (557 simplex iterations) in 0.10 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 3.348600000000e+04, best bound 3.348600000000e+04, gap 0.0%