Gurobi 5.0.1 (linux64) logging started Fri Nov 16 17:46:12 2012 Optimize a model with 5586 rows, 9702 columns and 26068 nonzeros Presolve removed 31 rows and 3038 columns Presolve time: 0.14s Presolved: 5555 rows, 6664 columns, 23030 nonzeros Variable types: 0 continuous, 6664 integer (6664 binary) Found heuristic solution: objective 32.0000000 Found heuristic solution: objective 3.0000000 Root relaxation: objective 2.000000e+00, 4798 iterations, 0.10 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 2.00000 0 40 3.00000 2.00000 33.3% - 0s 0 0 2.00000 0 318 3.00000 2.00000 33.3% - 1s 0 0 2.00000 0 40 3.00000 2.00000 33.3% - 2s 0 0 2.00000 0 110 3.00000 2.00000 33.3% - 2s 0 0 2.00000 0 157 3.00000 2.00000 33.3% - 4s 0 0 2.00000 0 40 3.00000 2.00000 33.3% - 6s 0 0 2.00000 0 110 3.00000 2.00000 33.3% - 7s 0 0 2.00000 0 108 3.00000 2.00000 33.3% - 9s 0 0 2.00000 0 157 3.00000 2.00000 33.3% - 10s 0 0 2.00000 0 108 3.00000 2.00000 33.3% - 12s 0 0 2.00000 0 157 3.00000 2.00000 33.3% - 14s 0 0 2.00000 0 157 3.00000 2.00000 33.3% - 15s 0 2 2.00000 0 157 3.00000 2.00000 33.3% - 16s 6 6 2.00000 1 106 3.00000 2.00000 33.3% 1451 24s Cutting planes: Zero half: 1 Explored 6 nodes (191043 simplex iterations) in 24.02 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%