Gurobi 5.0.1 (linux64) logging started Fri Jan 18 01:41:50 2013 Optimize a model with 1320 rows, 6060 columns and 15100 nonzeros Presolve removed 20 rows and 20 columns Presolve time: 0.09s Presolved: 1300 rows, 6040 columns, 14080 nonzeros Variable types: 5040 continuous, 1000 integer (1000 binary) Root relaxation: objective 3.600389e+04, 468 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 36003.8892 0 4 - 36003.8892 - - 0s 0 0 36107.2873 0 5 - 36107.2873 - - 0s 0 0 36107.4504 0 5 - 36107.4504 - - 0s 0 0 36107.4504 0 5 - 36107.4504 - - 0s H 0 0 36388.769579 36107.4504 0.77% - 0s 0 2 36110.4175 0 4 36388.7696 36110.4175 0.76% - 0s * 26 4 21 36202.381588 36202.3816 0.0% 10.8 0s Cutting planes: Gomory: 2 Implied bound: 20 Flow cover: 2 Explored 27 nodes (977 simplex iterations) in 0.42 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 3.620238158816e+04, best bound 3.620238158816e+04, gap 0.0%