Gurobi 5.0.1 (linux64) logging started Fri Nov 16 15:20:58 2012 Optimize a model with 6592 rows, 4160 columns and 23680 nonzeros Presolve removed 578 rows and 128 columns Presolve time: 0.14s Presolved: 6014 rows, 4032 columns, 22144 nonzeros Variable types: 0 continuous, 4032 integer (4032 binary) Found heuristic solution: objective 35.0000000 Root relaxation: objective 3.000000e+00, 5175 iterations, 0.28 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 (6860 simplex iterations) in 0.55 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%