Gurobi 5.0.1 (linux64) logging started Fri Nov 16 17:44:29 2012 Optimize a model with 5280 rows, 9312 columns and 24768 nonzeros Presolve removed 32 rows and 3072 columns Presolve time: 0.13s Presolved: 5248 rows, 6240 columns, 21696 nonzeros Variable types: 0 continuous, 6240 integer (6240 binary) Found heuristic solution: objective 25.0000000 Found heuristic solution: objective 3.0000000 Root relaxation: objective 2.000000e+00, 4408 iterations, 0.09 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 2.00000 0 32 3.00000 2.00000 33.3% - 0s 0 0 2.00000 0 134 3.00000 2.00000 33.3% - 0s 0 0 2.00000 0 116 3.00000 2.00000 33.3% - 2s 0 0 2.00000 0 106 3.00000 2.00000 33.3% - 3s 0 0 2.00000 0 147 3.00000 2.00000 33.3% - 5s 0 0 2.00000 0 32 3.00000 2.00000 33.3% - 5s 0 0 2.00000 0 92 3.00000 2.00000 33.3% - 6s 0 0 2.00000 0 104 3.00000 2.00000 33.3% - 7s 0 0 2.00000 0 92 3.00000 2.00000 33.3% - 8s 0 0 2.00000 0 147 3.00000 2.00000 33.3% - 9s 0 0 2.00000 0 147 3.00000 2.00000 33.3% - 10s 0 2 2.00000 0 147 3.00000 2.00000 33.3% - 11s 7 6 2.00000 1 94 3.00000 2.00000 33.3% 1398 16s Cutting planes: Gomory: 2 Zero half: 1 Explored 9 nodes (194906 simplex iterations) in 18.95 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%