Gurobi 5.0.1 (linux64) logging started Fri Nov 16 15:14:29 2012 Optimize a model with 2900 rows, 2550 columns and 11050 nonzeros Presolve removed 3 rows and 150 columns Presolve time: 0.06s Presolved: 2897 rows, 2400 columns, 10900 nonzeros Variable types: 0 continuous, 2400 integer (2400 binary) Found heuristic solution: objective 25.0000000 Found heuristic solution: objective 3.0000000 Root relaxation: objective 2.000000e+00, 2698 iterations, 0.15 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 0 141 3.00000 2.00000 33.3% - 0s 0 0 2.00000 0 139 3.00000 2.00000 33.3% - 1s 0 0 2.00000 0 142 3.00000 2.00000 33.3% - 1s 0 0 2.00000 0 139 3.00000 2.00000 33.3% - 2s 0 0 2.00000 0 142 3.00000 2.00000 33.3% - 3s 0 0 2.00000 0 139 3.00000 2.00000 33.3% - 3s 0 0 2.00000 0 139 3.00000 2.00000 33.3% - 4s 0 0 2.00000 0 142 3.00000 2.00000 33.3% - 5s 0 0 2.00000 0 142 3.00000 2.00000 33.3% - 5s 0 2 2.00000 0 142 3.00000 2.00000 33.3% - 6s 7 6 2.00000 1 90 3.00000 2.00000 33.3% 527 10s Cutting planes: Gomory: 6 Zero half: 3 Explored 12 nodes (96784 simplex iterations) in 12.84 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%