Gurobi 5.0.1 (linux64) logging started Sun Nov 18 03:12:54 2012 Optimize a model with 169 rows, 141 columns and 561 nonzeros Presolve removed 0 rows and 2 columns Presolve time: 0.00s Presolved: 169 rows, 139 columns, 559 nonzeros Variable types: 0 continuous, 139 integer (138 binary) Found heuristic solution: objective 39.0000000 Root relaxation: objective 0.000000e+00, 85 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 54 39.00000 0.00000 100% - 0s H 0 0 37.0000000 0.00000 100% - 0s H 0 0 34.0000000 0.00000 100% - 0s H 0 0 23.0000000 0.00000 100% - 0s 0 0 0.50154 0 55 23.00000 0.50154 97.8% - 0s H 0 0 22.0000000 0.50154 97.7% - 0s 0 0 1.00000 0 54 22.00000 1.00000 95.5% - 0s H 0 0 19.0000000 1.00000 94.7% - 0s H 0 0 18.0000000 1.00000 94.4% - 0s 0 0 1.00000 0 54 18.00000 1.00000 94.4% - 0s 0 2 1.00000 0 54 18.00000 1.00000 94.4% - 0s * 17 17 10 12.0000000 1.94832 83.8% 32.8 0s * 144 27 16 11.0000000 6.22000 43.5% 23.0 0s Cutting planes: Gomory: 3 Mod-K: 1 Explored 201 nodes (4749 simplex iterations) in 0.13 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 1.100000000000e+01, best bound 1.100000000000e+01, gap 0.0%