Gurobi 5.0.1 (linux64) logging started Thu Jan 17 23:51:04 2013 Optimize a model with 2400 rows, 101200 columns and 204100 nonzeros Presolve removed 400 rows and 300 columns Presolve time: 0.84s Presolved: 2000 rows, 100900 columns, 203000 nonzeros Variable types: 100500 continuous, 400 integer (400 binary) Root relaxation: objective 9.053666e+05, 6951 iterations, 1.43 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 905366.638 0 2 - 905366.638 - - 2s H 0 0 969595.08113 905366.638 6.62% - 3s H 0 0 926365.29258 905366.638 2.27% - 3s 0 2 905424.232 0 2 926365.293 905424.232 2.26% - 5s H 1 1 910283.57637 905424.232 0.53% 0.0 5s H 2 2 909947.28394 905802.203 0.46% 132 5s H 4 4 908974.89114 906298.749 0.29% 129 6s H 10 5 908448.41610 906298.749 0.24% 112 7s H 12 5 908265.35729 906298.749 0.22% 100 8s H 14 7 908261.66644 906298.749 0.22% 88.4 8s * 16 6 16 907989.63518 906298.749 0.19% 81.1 8s 20 8 906711.736 3 1 907989.635 906711.736 0.14% 104 10s 47 1 907892.458 6 1 907989.635 907892.458 0.01% 133 15s Explored 49 nodes (13204 simplex iterations) in 15.19 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 9.079896351764e+05, best bound 9.079029823444e+05, gap 0.0095%