Gurobi 5.0.1 (linux64) logging started Fri Nov 16 15:13:40 2012 Optimize a model with 3360 rows, 2352 columns and 12240 nonzeros Presolve removed 437 rows and 240 columns Presolve time: 0.07s Presolved: 2923 rows, 2112 columns, 10944 nonzeros Variable types: 0 continuous, 2112 integer (2112 binary) Found heuristic solution: objective 21.0000000 Root relaxation: objective 3.000000e+00, 2865 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 (4829 simplex iterations) in 0.29 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%