Gurobi 5.0.1 (linux64) logging started Thu Jan 17 23:16:17 2013 Optimize a model with 160 rows, 1070 columns and 2190 nonzeros Presolve removed 10 rows and 10 columns Presolve time: 0.00s Presolved: 150 rows, 1060 columns, 2150 nonzeros Variable types: 1050 continuous, 10 integer (10 binary) Root relaxation: objective 1.791602e+04, 124 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 17960.2516 0 1 - 17960.2516 - - 0s 0 0 17966.1136 0 1 - 17966.1136 - - 0s 0 0 17967.1057 0 1 - 17967.1057 - - 0s * 0 0 0 17975.828949 17975.8289 0.0% - 0s Cutting planes: Gomory: 1 Implied bound: 1 Flow cover: 4 Explored 0 nodes (166 simplex iterations) in 0.01 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 1.797582894874e+04, best bound 1.797582894874e+04, gap 0.0%