Gurobi 5.0.1 (linux64) logging started Sun Nov 18 03:12:26 2012 Optimize a model with 169 rows, 139 columns and 559 nonzeros Presolve removed 0 rows and 1 columns Presolve time: 0.00s Presolved: 169 rows, 138 columns, 558 nonzeros Variable types: 0 continuous, 138 integer (137 binary) Found heuristic solution: objective 38.0000000 Root relaxation: objective 0.000000e+00, 79 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 51 38.00000 0.00000 100% - 0s H 0 0 31.0000000 0.00000 100% - 0s H 0 0 27.0000000 0.00000 100% - 0s 0 0 0.47059 0 52 27.00000 0.47059 98.3% - 0s H 0 0 26.0000000 0.47059 98.2% - 0s 0 0 1.00000 0 55 26.00000 1.00000 96.2% - 0s 0 0 1.00000 0 55 26.00000 1.00000 96.2% - 0s 0 0 1.00000 0 53 26.00000 1.00000 96.2% - 0s H 0 0 25.0000000 1.00000 96.0% - 0s H 0 0 20.0000000 1.00000 95.0% - 0s H 0 0 18.0000000 1.00000 94.4% - 0s 0 2 1.00000 0 53 18.00000 1.00000 94.4% - 0s H 27 17 14.0000000 1.94444 86.1% 20.6 0s * 71 34 14 13.0000000 3.53191 72.8% 19.3 0s H 336 14 12.0000000 10.17241 15.2% 16.8 0s Cutting planes: Gomory: 3 Zero half: 3 Explored 366 nodes (6436 simplex iterations) in 0.18 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 1.200000000000e+01, best bound 1.200000000000e+01, gap 0.0%