Gurobi 5.0.1 (linux64) logging started Sun Nov 18 03:19:21 2012 Optimize a model with 165 rows, 144 columns and 554 nonzeros Presolve removed 0 rows and 6 columns Presolve time: 0.00s Presolved: 165 rows, 138 columns, 548 nonzeros Variable types: 0 continuous, 138 integer (137 binary) Found heuristic solution: objective 33.0000000 Root relaxation: objective 0.000000e+00, 86 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 31.0000000 0.00000 100% - 0s H 0 0 28.0000000 0.00000 100% - 0s H 0 0 23.0000000 0.00000 100% - 0s 0 0 0.43636 0 56 23.00000 0.43636 98.1% - 0s H 0 0 21.0000000 0.43636 97.9% - 0s H 0 0 15.0000000 0.43636 97.1% - 0s 0 0 1.07218 0 58 15.00000 1.07218 92.9% - 0s H 0 0 14.0000000 1.07218 92.3% - 0s 0 0 1.32888 0 59 14.00000 1.32888 90.5% - 0s 0 0 1.33790 0 60 14.00000 1.33790 90.4% - 0s 0 0 1.33790 0 60 14.00000 1.33790 90.4% - 0s 0 2 1.34347 0 60 14.00000 1.34347 90.4% - 0s * 26 16 16 13.0000000 2.53035 80.5% 18.8 0s * 47 22 12 12.0000000 2.55551 78.7% 19.9 0s * 71 24 12 11.0000000 2.68687 75.6% 18.1 0s * 98 24 8 10.0000000 4.28713 57.1% 19.3 0s Cutting planes: Gomory: 4 Mod-K: 1 Explored 183 nodes (3261 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%