Gurobi 5.0.1 (linux64) logging started Fri Jan 18 07:07:31 2013 Optimize a model with 1016 rows, 2013 columns and 7025 nonzeros Presolve removed 13 rows and 51 columns Presolve time: 0.04s Presolved: 1003 rows, 1962 columns, 5885 nonzeros Variable types: 1000 continuous, 962 integer (962 binary) Found heuristic solution: objective 2689.1102444 Root relaxation: objective 2.684520e+03, 8 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 2684.52030 0 2 2689.11024 2684.52030 0.17% - 0s 0 0 2684.78382 0 2 2689.11024 2684.78382 0.16% - 0s 0 0 2685.04474 0 2 2689.11024 2685.04474 0.15% - 0s 0 0 2685.30313 0 2 2689.11024 2685.30313 0.14% - 0s 0 0 2685.55905 0 2 2689.11024 2685.55905 0.13% - 0s 0 0 2685.81258 0 2 2689.11024 2685.81258 0.12% - 0s 0 0 2686.06377 0 2 2689.11024 2686.06377 0.11% - 0s 0 0 2686.31268 0 2 2689.11024 2686.31268 0.10% - 0s 0 0 2686.55936 0 2 2689.11024 2686.55936 0.09% - 0s 0 0 2686.80388 0 2 2689.11024 2686.80388 0.09% - 0s 0 0 2687.04628 0 2 2689.11024 2687.04628 0.08% - 0s 0 0 2687.28661 0 2 2689.11024 2687.28661 0.07% - 0s 0 0 2687.52492 0 2 2689.11024 2687.52492 0.06% - 0s 0 0 2687.76125 0 2 2689.11024 2687.76125 0.05% - 0s 0 0 2687.99564 0 2 2689.11024 2687.99564 0.04% - 0s 0 0 2688.22814 0 2 2689.11024 2688.22814 0.03% - 0s 0 0 2688.45878 0 2 2689.11024 2688.45878 0.02% - 0s 0 0 2688.68759 0 2 2689.11024 2688.68759 0.02% - 0s 0 0 2688.91443 0 2 2689.11024 2688.91443 0.01% - 0s Explored 0 nodes (100 simplex iterations) in 0.25 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 2.689110244363e+03, best bound 2.688914427686e+03, gap 0.0073%