Gurobi 5.0.1 (linux64) logging started Fri Nov 16 20:45:45 2012 Optimize a model with 15399 rows, 19740 columns and 65238 nonzeros Presolve removed 592 rows and 4202 columns Presolve time: 0.33s Presolved: 14807 rows, 15538 columns, 59426 nonzeros Variable types: 0 continuous, 15538 integer (15538 binary) Found heuristic solution: objective 140.0000000 Root relaxation: objective 3.000000e+00, 10088 iterations, 0.71 seconds Total elapsed time = 5.24s 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% - 5s Explored 0 nodes (26425 simplex iterations) in 5.30 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%