Gurobi 5.0.1 (linux64) logging started Fri Nov 16 17:48:02 2012 Optimize a model with 5200 rows, 10100 columns and 25300 nonzeros Presolve removed 33 rows and 3300 columns Presolve time: 0.13s Presolved: 5167 rows, 6800 columns, 22000 nonzeros Variable types: 0 continuous, 6800 integer (6800 binary) Found heuristic solution: objective 24.0000000 Found heuristic solution: objective 3.0000000 Root relaxation: objective 2.000000e+00, 5184 iterations, 0.13 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 2.00000 0 22 3.00000 2.00000 33.3% - 0s 0 0 2.00000 0 116 3.00000 2.00000 33.3% - 0s 0 0 2.00000 0 91 3.00000 2.00000 33.3% - 1s 0 0 2.00000 0 240 3.00000 2.00000 33.3% - 4s 0 0 2.00000 0 22 3.00000 2.00000 33.3% - 5s 0 0 2.00000 0 93 3.00000 2.00000 33.3% - 6s 0 0 2.00000 0 148 3.00000 2.00000 33.3% - 8s 0 0 2.00000 0 22 3.00000 2.00000 33.3% - 9s 0 0 2.00000 0 89 3.00000 2.00000 33.3% - 10s 0 0 2.00000 0 89 3.00000 2.00000 33.3% - 10s 0 2 2.00000 0 89 3.00000 2.00000 33.3% - 11s 8 7 2.00000 1 22 3.00000 2.00000 33.3% 598 15s 13 10 infeasible 15 3.00000 2.00000 33.3% 7653 20s Cutting planes: Gomory: 7 Explored 15 nodes (218366 simplex iterations) in 20.75 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%