Gurobi 5.0.1 (linux64) logging started Fri Nov 16 20:15:35 2012 Optimize a model with 14471 rows, 18090 columns and 60834 nonzeros Presolve removed 291 rows and 2816 columns Presolve time: 0.28s Presolved: 14180 rows, 15274 columns, 57138 nonzeros Variable types: 0 continuous, 15274 integer (15274 binary) Found heuristic solution: objective 134.0000000 Root relaxation: objective 3.000000e+00, 8030 iterations, 0.51 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% - 4s Explored 0 nodes (28578 simplex iterations) in 4.92 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%