Gurobi 5.0.1 (linux64) logging started Sun Nov 18 03:12:39 2012 Optimize a model with 163 rows, 137 columns and 542 nonzeros Presolve time: 0.00s Presolved: 163 rows, 137 columns, 542 nonzeros Variable types: 0 continuous, 137 integer (137 binary) Found heuristic solution: objective 33.0000000 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 55 33.00000 0.00000 100% - 0s H 0 0 23.0000000 0.00000 100% - 0s 0 0 0.49091 0 56 23.00000 0.49091 97.9% - 0s H 0 0 19.0000000 0.49091 97.4% - 0s 0 0 1.08093 0 58 19.00000 1.08093 94.3% - 0s 0 0 1.47615 0 62 19.00000 1.47615 92.2% - 0s 0 0 1.48340 0 62 19.00000 1.48340 92.2% - 0s 0 0 1.48340 0 62 19.00000 1.48340 92.2% - 0s H 0 0 15.0000000 1.48340 90.1% - 0s 0 2 1.50445 0 62 15.00000 1.50445 90.0% - 0s * 25 18 18 14.0000000 2.52499 82.0% 18.7 0s * 46 24 15 13.0000000 2.68690 79.3% 19.3 0s * 58 25 9 11.0000000 3.37613 69.3% 21.2 0s * 126 18 6 10.0000000 6.17951 38.2% 20.6 0s Cutting planes: Gomory: 4 Zero half: 1 Mod-K: 1 Explored 156 nodes (3398 simplex iterations) in 0.15 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 1.000000000000e+01, best bound 1.000000000000e+01, gap 0.0%