Gurobi 5.0.1 (linux64) logging started Fri Jan 18 00:50:15 2013 Optimize a model with 2200 rows, 101700 columns and 207600 nonzeros Presolve removed 100 rows and 100 columns Presolve time: 0.29s Presolved: 2100 rows, 101600 columns, 206500 nonzeros Variable types: 101200 continuous, 400 integer (400 binary) Root relaxation: objective 8.258498e+05, 7144 iterations, 0.45 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 825849.833 0 3 - 825849.833 - - 0s H 0 0 834265.22341 825849.833 1.01% - 0s 0 0 825859.486 0 3 834265.223 825859.486 1.01% - 1s 0 0 825859.486 0 3 834265.223 825859.486 1.01% - 1s 0 0 825861.516 0 3 834265.223 825861.516 1.01% - 1s 0 0 825869.882 0 3 834265.223 825869.882 1.01% - 2s 0 0 825875.050 0 3 834265.223 825875.050 1.01% - 2s 0 0 825875.050 0 3 834265.223 825875.050 1.01% - 2s 0 0 825875.050 0 3 834265.223 825875.050 1.01% - 3s 0 0 825875.050 0 3 834265.223 825875.050 1.01% - 3s 0 0 825875.050 0 3 834265.223 825875.050 1.01% - 3s 0 0 825875.050 0 3 834265.223 825875.050 1.01% - 4s 0 2 825888.833 0 3 834265.223 825888.833 1.00% - 5s * 5 3 5 826102.66657 825989.224 0.01% 124 6s Cutting planes: Flow cover: 9 Explored 8 nodes (9787 simplex iterations) in 6.33 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 8.261026665679e+05, best bound 8.261026665679e+05, gap 0.0000%