Gurobi 5.0.1 (linux64) logging started Fri Nov 16 18:22:41 2012 Optimize a model with 9839 rows, 14520 columns and 43438 nonzeros Presolve removed 277 rows and 4202 columns Presolve time: 0.17s Presolved: 9562 rows, 10318 columns, 38478 nonzeros Variable types: 0 continuous, 10318 integer (10318 binary) Found heuristic solution: objective 120.0000000 Root relaxation: objective 3.000000e+00, 7405 iterations, 0.45 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time * 0 0 0 3.0000000 3.00000 0.0% - 2s Explored 0 nodes (17735 simplex iterations) in 2.51 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 3.000000000000e+00, best bound 3.000000000000e+00, gap 0.0%