Gurobi 5.0.1 (linux64) logging started Sat Nov 17 23:39:49 2012 Optimize a model with 153 rows, 114 columns and 494 nonzeros Presolve time: 0.00s Presolved: 153 rows, 114 columns, 494 nonzeros Variable types: 0 continuous, 114 integer (114 binary) Found heuristic solution: objective 35.0000000 Root relaxation: objective 0.000000e+00, 64 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 38 35.00000 0.00000 100% - 0s H 0 0 32.0000000 0.00000 100% - 0s H 0 0 31.0000000 0.00000 100% - 0s 0 0 0.50000 0 39 31.00000 0.50000 98.4% - 0s H 0 0 27.0000000 0.50000 98.1% - 0s 0 0 0.54839 0 41 27.00000 0.54839 98.0% - 0s 0 0 0.65222 0 47 27.00000 0.65222 97.6% - 0s 0 0 0.67273 0 43 27.00000 0.67273 97.5% - 0s 0 0 0.68437 0 43 27.00000 0.68437 97.5% - 0s H 0 0 22.0000000 0.68437 96.9% - 0s 0 0 0.68474 0 43 22.00000 0.68474 96.9% - 0s 0 2 0.86603 0 43 22.00000 0.86603 96.1% - 0s * 19 19 12 19.0000000 2.58824 86.4% 22.7 0s * 41 28 12 18.0000000 2.65957 85.2% 19.1 0s * 43 26 11 17.0000000 2.65957 84.4% 18.7 0s * 229 46 9 16.0000000 8.37500 47.7% 14.1 0s * 388 25 10 15.0000000 10.66667 28.9% 13.1 0s Cutting planes: Gomory: 1 Zero half: 4 Mod-K: 1 Explored 451 nodes (5910 simplex iterations) in 0.16 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 1.500000000000e+01, best bound 1.500000000000e+01, gap 0.0%