Gurobi 5.0.1 (linux64) logging started Fri Jan 18 05:28:12 2013 Optimize a model with 160 rows, 2810 columns and 28155 nonzeros Presolve removed 5 rows and 5 columns Presolve time: 0.08s Presolved: 155 rows, 2805 columns, 25650 nonzeros Variable types: 2760 continuous, 45 integer (45 binary) Root relaxation: objective 9.876190e+03, 46 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 9876.18952 0 3 - 9876.18952 - - 0s 0 0 9876.27776 0 6 - 9876.27776 - - 0s 0 0 9876.29982 0 3 - 9876.29982 - - 0s 0 0 9911.72709 0 6 - 9911.72709 - - 0s 0 0 9940.83211 0 6 - 9940.83211 - - 0s 0 0 9942.24114 0 3 - 9942.24114 - - 0s 0 0 9942.24114 0 3 - 9942.24114 - - 0s H 0 0 9942.9596239 9942.24114 0.01% - 0s Cutting planes: Flow cover: 2 Explored 0 nodes (103 simplex iterations) in 0.55 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 9.942959623924e+03, best bound 9.942241140454e+03, gap 0.0072%