Gurobi 5.0.1 (linux64) logging started Fri Nov 16 15:14:54 2012 Optimize a model with 2856 rows, 2652 columns and 11016 nonzeros Presolve removed 6 rows and 306 columns Presolve time: 0.06s Presolved: 2850 rows, 2346 columns, 10710 nonzeros Variable types: 0 continuous, 2346 integer (2346 binary) Found heuristic solution: objective 30.0000000 Found heuristic solution: objective 3.0000000 Root relaxation: objective 2.000000e+00, 2087 iterations, 0.04 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 2.00000 0 90 3.00000 2.00000 33.3% - 0s 0 0 2.00000 0 138 3.00000 2.00000 33.3% - 0s 0 0 2.00000 0 90 3.00000 2.00000 33.3% - 0s 0 0 2.00000 0 137 3.00000 2.00000 33.3% - 1s 0 0 2.00000 0 137 3.00000 2.00000 33.3% - 1s 0 0 2.00000 0 137 3.00000 2.00000 33.3% - 2s 0 0 2.00000 0 138 3.00000 2.00000 33.3% - 3s 0 0 2.00000 0 138 3.00000 2.00000 33.3% - 3s 0 2 2.00000 0 138 3.00000 2.00000 33.3% - 4s 2 3 2.00000 1 138 3.00000 2.00000 33.3% 2978 5s 9 8 2.00000 1 90 3.00000 2.00000 33.3% 662 10s Cutting planes: Gomory: 3 Zero half: 3 Explored 14 nodes (93972 simplex iterations) in 11.98 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%