Gurobi 5.0.1 (linux64) logging started Sun Nov 18 05:26:51 2012 Optimize a model with 259 rows, 280 columns and 925 nonzeros Presolve removed 0 rows and 31 columns Presolve time: 0.00s Presolved: 259 rows, 249 columns, 894 nonzeros Variable types: 0 continuous, 249 integer (248 binary) Found heuristic solution: objective 39.0000000 Root relaxation: objective 0.000000e+00, 163 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 0 111 39.00000 0.00000 100% - 0s H 0 0 35.0000000 0.00000 100% - 0s H 0 0 34.0000000 0.00000 100% - 0s 0 0 0.18991 0 113 34.00000 0.18991 99.4% - 0s H 0 0 29.0000000 0.18991 99.3% - 0s 0 0 0.76061 0 115 29.00000 0.76061 97.4% - 0s H 0 0 27.0000000 0.76061 97.2% - 0s 0 0 0.76061 0 115 27.00000 0.76061 97.2% - 0s H 0 0 23.0000000 0.76061 96.7% - 0s H 0 0 21.0000000 0.76061 96.4% - 0s H 0 0 16.0000000 0.76061 95.2% - 0s H 0 0 15.0000000 0.76061 94.9% - 0s 0 2 0.76274 0 115 15.00000 0.76274 94.9% - 0s H 27 27 8.0000000 1.00000 87.5% 25.3 0s * 37 35 30 7.0000000 1.00000 85.7% 20.7 0s * 76 30 9 5.0000000 1.00000 80.0% 18.9 0s Cutting planes: Gomory: 4 Zero half: 5 Explored 293 nodes (7159 simplex iterations) in 0.24 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 5.000000000000e+00, best bound 5.000000000000e+00, gap 0.0%