Gurobi 5.0.1 (linux64) logging started Fri Nov 16 15:16:07 2012 Optimize a model with 4344 rows, 3080 columns and 15838 nonzeros Presolve removed 719 rows and 112 columns Presolve time: 0.09s Presolved: 3625 rows, 2968 columns, 13836 nonzeros Variable types: 0 continuous, 2968 integer (2968 binary) Found heuristic solution: objective 55.0000000 Root relaxation: objective 3.000000e+00, 2897 iterations, 0.15 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 (7858 simplex iterations) in 0.64 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%