Gurobi 5.0.1 (linux64) logging started Sun Nov 18 03:13:44 2012 Optimize a model with 237 rows, 178 columns and 768 nonzeros Presolve time: 0.00s Presolved: 237 rows, 178 columns, 768 nonzeros Variable types: 0 continuous, 178 integer (178 binary) Found heuristic solution: objective 53.0000000 Root relaxation: objective 0.000000e+00, 93 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 0.00000 0 60 53.00000 0.00000 100% - 0s H 0 0 38.0000000 0.00000 100% - 0s H 0 0 37.0000000 0.00000 100% - 0s 0 0 0.60000 0 61 37.00000 0.60000 98.4% - 0s 0 0 1.00000 0 62 37.00000 1.00000 97.3% - 0s 0 0 1.32692 0 63 37.00000 1.32692 96.4% - 0s 0 0 1.32692 0 62 37.00000 1.32692 96.4% - 0s H 0 0 33.0000000 1.32692 96.0% - 0s H 0 0 32.0000000 1.32692 95.9% - 0s 0 2 1.34413 0 62 32.00000 1.34413 95.8% - 0s H 32 29 27.0000000 3.66462 86.4% 23.7 0s * 73 42 24 26.0000000 3.90081 85.0% 20.7 0s * 101 60 17 24.0000000 5.95316 75.2% 21.4 0s * 105 49 17 23.0000000 5.95316 74.1% 20.9 0s Cutting planes: Gomory: 5 Explored 1956 nodes (37065 simplex iterations) in 1.14 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 2.300000000000e+01, best bound 2.300000000000e+01, gap 0.0%