Gurobi 5.0.1 (linux64) logging started Fri Nov 16 19:59:52 2012 Optimize a model with 12012 rows, 17556 columns and 53064 nonzeros Presolve removed 295 rows and 4092 columns Presolve time: 0.23s Presolved: 11717 rows, 13464 columns, 48312 nonzeros Variable types: 0 continuous, 13464 integer (13464 binary) Found heuristic solution: objective 37.0000000 Root relaxation: objective 3.000000e+00, 12386 iterations, 0.54 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 (15612 simplex iterations) in 1.09 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%