Gurobi 5.0.1 (linux64) logging started Fri Jan 18 00:55:31 2013 Optimize a model with 1080 rows, 4840 columns and 11220 nonzeros Presolve removed 60 rows and 40 columns Presolve time: 0.03s Presolved: 1020 rows, 4800 columns, 10360 nonzeros Variable types: 4420 continuous, 380 integer (380 binary) Root relaxation: objective 3.600389e+04, 632 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 2 - 36003.8892 - - 0s 0 0 36194.4852 0 5 - 36194.4852 - - 0s 0 0 36198.2293 0 3 - 36198.2293 - - 0s H 0 0 36232.698307 36198.2293 0.10% - 0s 0 0 36198.2293 0 2 36232.6983 36198.2293 0.10% - 0s 0 0 36198.2293 0 3 36232.6983 36198.2293 0.10% - 0s 0 0 36199.4944 0 2 36232.6983 36199.4944 0.09% - 0s 0 2 36200.6707 0 2 36232.6983 36200.6707 0.09% - 0s H 3 3 36205.894862 36201.5046 0.01% 3.0 0s Cutting planes: Gomory: 1 Flow cover: 3 Explored 4 nodes (1123 simplex iterations) in 0.21 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 3.620589486243e+04, best bound 3.620228634429e+04, gap 0.0100%