Gurobi 5.0.1 (linux64) logging started Fri Nov 16 15:11:31 2012 Optimize a model with 1600 rows, 1640 columns and 6280 nonzeros Presolve removed 244 rows and 160 columns Presolve time: 0.03s Presolved: 1356 rows, 1480 columns, 5520 nonzeros Variable types: 0 continuous, 1480 integer (1480 binary) Found heuristic solution: objective 19.0000000 Root relaxation: objective 3.000000e+00, 1147 iterations, 0.02 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 (1486 simplex iterations) in 0.05 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%