Gurobi 5.0.1 (linux64) logging started Tue Apr 23 22:02:09 2013 Optimize a model with 1350 rows, 1300 columns and 5050 nonzeros Presolve removed 75 rows and 1 columns Presolve time: 0.01s Presolved: 1275 rows, 1299 columns, 4925 nonzeros Variable types: 1275 continuous, 24 integer (24 binary) Root relaxation: objective 8.945197e+05, 157 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 894519.673 0 4 - 894519.673 - - 0s H 0 0 905406.81250 894519.673 1.20% - 0s H 0 0 896617.53750 894519.673 0.23% - 0s 0 0 895649.582 0 3 896617.537 895649.582 0.11% - 0s 0 0 895649.582 0 3 896617.537 895649.582 0.11% - 0s 0 0 896591.662 0 1 896617.537 896591.662 0.00% - 0s Cutting planes: Gomory: 3 Explored 0 nodes (226 simplex iterations) in 0.04 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 8.966175375000e+05, best bound 8.965916619528e+05, gap 0.0029%