Gurobi 5.0.1 (linux64) logging started Fri Nov 16 15:20:17 2012 Optimize a model with 6552 rows, 4032 columns and 23436 nonzeros Presolve removed 317 rows and 126 columns Presolve time: 0.13s Presolved: 6235 rows, 3906 columns, 22554 nonzeros Variable types: 0 continuous, 3906 integer (3906 binary) Found heuristic solution: objective 30.0000000 Root relaxation: objective 3.000000e+00, 6722 iterations, 0.60 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% - 0s Explored 0 nodes (8783 simplex iterations) in 0.94 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%