Gurobi 5.0.1 (linux64) logging started Fri Jan 18 00:44:24 2013 Optimize a model with 2600 rows, 102300 columns and 207500 nonzeros Presolve removed 200 rows and 200 columns Presolve time: 1.00s Presolved: 2400 rows, 102100 columns, 206800 nonzeros Variable types: 101200 continuous, 900 integer (900 binary) Root relaxation: objective 8.258498e+05, 6308 iterations, 0.79 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 825849.833 0 1 - 825849.833 - - 1s H 0 0 834265.22341 825849.833 1.01% - 2s 0 0 825858.892 0 1 834265.223 825858.892 1.01% - 2s 0 0 825861.040 0 1 834265.223 825861.040 1.01% - 2s 0 0 825870.050 0 1 834265.223 825870.050 1.01% - 3s 0 0 825874.456 0 1 834265.223 825874.456 1.01% - 3s 0 0 825874.456 0 1 834265.223 825874.456 1.01% - 3s 0 0 825874.456 0 1 834265.223 825874.456 1.01% - 4s 0 0 825874.456 0 1 834265.223 825874.456 1.01% - 4s 0 0 825874.456 0 1 834265.223 825874.456 1.01% - 4s 0 0 825874.456 0 1 834265.223 825874.456 1.01% - 5s 0 2 825888.833 0 1 834265.223 825888.833 1.00% - 6s * 5 3 5 826102.66657 825989.224 0.01% 84.2 7s Cutting planes: Flow cover: 8 Explored 7 nodes (7331 simplex iterations) in 7.34 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%