Gurobi 5.0.1 (linux64) logging started Fri Nov 16 01:06:23 2012 Optimize a model with 1104 rows, 272 columns and 3520 nonzeros Presolve removed 688 rows and 0 columns Presolve time: 0.01s Presolved: 416 rows, 272 columns, 2368 nonzeros Variable types: 0 continuous, 272 integer (272 binary) Found heuristic solution: objective 13.0000000 Root relaxation: objective 5.000000e+00, 616 iterations, 0.02 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 5.00000 0 14 13.00000 5.00000 61.5% - 0s H 0 0 6.0000000 5.00000 16.7% - 0s 0 0 5.00000 0 32 6.00000 5.00000 16.7% - 0s 0 0 5.00000 0 14 6.00000 5.00000 16.7% - 0s 0 0 5.00000 0 23 6.00000 5.00000 16.7% - 0s 0 0 5.00000 0 23 6.00000 5.00000 16.7% - 0s 0 0 5.00000 0 24 6.00000 5.00000 16.7% - 0s 0 0 5.00000 0 16 6.00000 5.00000 16.7% - 0s 0 0 5.00000 0 14 6.00000 5.00000 16.7% - 0s 0 0 5.00000 0 14 6.00000 5.00000 16.7% - 0s 0 0 5.00000 0 14 6.00000 5.00000 16.7% - 0s 0 2 5.00000 0 14 6.00000 5.00000 16.7% - 0s Cutting planes: Gomory: 7 Explored 15 nodes (9010 simplex iterations) in 0.53 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 6.000000000000e+00, best bound 6.000000000000e+00, gap 0.0%