Gurobi 5.0.1 (linux64) logging started Fri Nov 16 15:21:55 2012 Optimize a model with 7020 rows, 4290 columns and 25090 nonzeros Presolve removed 717 rows and 130 columns Presolve time: 0.14s Presolved: 6303 rows, 4160 columns, 23205 nonzeros Variable types: 0 continuous, 4160 integer (4160 binary) Found heuristic solution: objective 34.0000000 Root relaxation: objective 3.000000e+00, 6926 iterations, 0.63 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 (13994 simplex iterations) in 1.35 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%