Gurobi 5.0.1 (linux64) logging started Fri Jan 18 05:28:03 2013 Optimize a model with 2580 rows, 5265 columns and 18025 nonzeros Presolve removed 5 rows and 5 columns Presolve time: 0.13s Presolved: 2575 rows, 5260 columns, 15520 nonzeros Variable types: 2760 continuous, 2500 integer (2500 binary) Root relaxation: objective 9.601887e+03, 37 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 9601.88662 0 2 - 9601.88662 - - 0s 0 0 9603.86181 0 2 - 9603.86181 - - 0s 0 0 9604.23209 0 2 - 9604.23209 - - 0s 0 0 9604.23209 0 2 - 9604.23209 - - 0s 0 2 9604.23209 0 2 - 9604.23209 - - 1s * 20 8 10 9624.2188173 9620.93226 0.03% 59.4 1s Cutting planes: Gomory: 1 Implied bound: 2 Explored 34 nodes (1319 simplex iterations) in 1.49 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 9.624218817299e+03, best bound 9.624218817299e+03, gap 0.0%