Gurobi 5.0.1 (linux64) logging started Fri Jan 18 04:02:37 2013 Optimize a model with 216 rows, 413 columns and 1425 nonzeros Presolve removed 36 rows and 60 columns Presolve time: 0.01s Presolved: 180 rows, 353 columns, 1058 nonzeros Variable types: 177 continuous, 176 integer (176 binary) Found heuristic solution: objective 2689.1098456 Root relaxation: objective 2.685825e+03, 6 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 2685.82528 0 2 2689.10985 2685.82528 0.12% - 0s 0 0 2686.72787 0 2 2689.10985 2686.72787 0.09% - 0s 0 0 2687.60673 0 2 2689.10985 2687.60673 0.06% - 0s 0 0 2688.46289 0 2 2689.10985 2688.46289 0.02% - 0s 0 0 cutoff 0 2689.10985 2689.10985 0.0% - 0s Explored 0 nodes (22 simplex iterations) in 0.05 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 2.689109845638e+03, best bound 2.689109845638e+03, gap 0.0%