Gurobi 5.0.1 (linux64) logging started Fri Nov 16 20:51:47 2012 Optimize a model with 16757 rows, 21756 columns and 71293 nonzeros Presolve removed 296 rows and 2 columns Presolve time: 0.32s Presolved: 16608 rows, 21754 columns, 91943 nonzeros Variable types: 0 continuous, 21754 integer (21754 binary) Found heuristic solution: objective 147.0000000 Root relaxation: objective 3.000000e+00, 12324 iterations, 0.91 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% - 1s Explored 0 nodes (28658 simplex iterations) in 1.91 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%