Gurobi 5.0.1 (linux64) logging started Fri Jan 18 00:24:34 2013 Optimize a model with 3400 rows, 102200 columns and 208100 nonzeros Presolve removed 400 rows and 300 columns Presolve time: 0.43s Presolved: 3000 rows, 101900 columns, 206500 nonzeros Variable types: 101000 continuous, 900 integer (900 binary) Root relaxation: objective 8.258498e+05, 7842 iterations, 1.14 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 2 825853.860 0 1 834265.223 825853.860 1.01% - 3s * 5 3 5 826102.66657 826102.667 0.0% 67.6 4s Explored 6 nodes (8180 simplex iterations) in 4.66 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 0.0%