Gurobi 5.0.1 (linux64) logging started Fri Nov 16 21:09:14 2012 Optimize a model with 23308 rows, 26732 columns and 95842 nonzeros Presolve removed 679 rows and 4077 columns Presolve time: 0.56s Presolved: 22629 rows, 22655 columns, 89859 nonzeros Variable types: 0 continuous, 22655 integer (22655 binary) Found heuristic solution: objective 163.0000000 Root relaxation: objective 3.000000e+00, 14807 iterations, 1.35 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% - 3s Explored 0 nodes (31874 simplex iterations) in 3.15 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%