Gurobi 5.0.1 (linux64) logging started Sat Nov 17 23:42:50 2012 Optimize a model with 203 rows, 145 columns and 650 nonzeros Presolve removed 0 rows and 1 columns Presolve time: 0.00s Presolved: 203 rows, 144 columns, 649 nonzeros Variable types: 0 continuous, 144 integer (143 binary) Found heuristic solution: objective 45.0000000 Root relaxation: objective 0.000000e+00, 65 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 42 45.00000 0.00000 100% - 0s H 0 0 32.0000000 0.00000 100% - 0s H 0 0 30.0000000 0.00000 100% - 0s 0 0 0.56022 0 43 30.00000 0.56022 98.1% - 0s H 0 0 29.0000000 0.56022 98.1% - 0s 0 0 1.00822 0 45 29.00000 1.00822 96.5% - 0s 0 0 1.12877 0 46 29.00000 1.12877 96.1% - 0s 0 0 1.13053 0 47 29.00000 1.13053 96.1% - 0s 0 2 1.13087 0 47 29.00000 1.13087 96.1% - 0s * 25 24 15 27.0000000 3.40000 87.4% 32.8 0s * 50 39 19 26.0000000 3.40000 86.9% 26.3 0s * 53 35 18 25.0000000 3.40000 86.4% 24.9 0s * 139 71 12 23.0000000 11.06143 51.9% 27.1 0s Cutting planes: Gomory: 4 Mod-K: 1 Explored 477 nodes (10108 simplex iterations) in 0.26 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 2.300000000000e+01, best bound 2.300000000000e+01, gap 0.0%