Gurobi 5.0.1 (linux64) logging started Thu Jan 17 23:43:32 2013 Optimize a model with 190 rows, 1170 columns and 2410 nonzeros Presolve removed 20 rows and 30 columns Presolve time: 0.00s Presolved: 170 rows, 1140 columns, 2280 nonzeros Variable types: 1100 continuous, 40 integer (40 binary) Root relaxation: objective 1.791602e+04, 117 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 17916.0191 0 3 - 17916.0191 - - 0s 0 0 17939.5060 0 3 - 17939.5060 - - 0s 0 0 17939.9181 0 3 - 17939.9181 - - 0s 0 0 17942.2275 0 3 - 17942.2275 - - 0s 0 0 17942.2275 0 3 - 17942.2275 - - 0s H 0 0 17983.462780 17942.2275 0.23% - 0s 0 2 17966.7966 0 3 17983.4628 17966.7966 0.09% - 0s * 3 2 3 17983.106726 17966.7966 0.09% 3.0 0s Cutting planes: Gomory: 2 Flow cover: 7 Explored 7 nodes (173 simplex iterations) in 0.04 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 1.798310672580e+04, best bound 1.798310672580e+04, gap 0.0%