Gurobi 5.0.1 (linux64) logging started Fri Nov 16 15:14:29 2012 Optimize a model with 3150 rows, 2550 columns and 11800 nonzeros Presolve removed 456 rows and 300 columns Presolve time: 0.06s Presolved: 2694 rows, 2250 columns, 10450 nonzeros Variable types: 0 continuous, 2250 integer (2250 binary) Found heuristic solution: objective 27.0000000 Root relaxation: objective 3.000000e+00, 2845 iterations, 0.11 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 (4299 simplex iterations) in 0.26 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%