Gurobi 5.0.1 (linux64) logging started Fri Nov 16 21:44:43 2012 Optimize a model with 28673 rows, 31506 columns and 116641 nonzeros Presolve removed 356 rows and 2 columns Presolve time: 0.66s Presolved: 28494 rows, 31504 columns, 146765 nonzeros Variable types: 0 continuous, 31504 integer (31504 binary) Found heuristic solution: objective 177.0000000 Root relaxation: objective 3.000000e+00, 18675 iterations, 1.92 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 (18675 simplex iterations) in 2.68 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%