Gurobi 5.0.1 (linux64) logging started Sun Nov 18 05:35:30 2012 Optimize a model with 271 rows, 300 columns and 975 nonzeros Presolve removed 0 rows and 34 columns Presolve time: 0.00s Presolved: 271 rows, 266 columns, 941 nonzeros Variable types: 0 continuous, 266 integer (265 binary) Found heuristic solution: objective 39.0000000 Root relaxation: objective 0.000000e+00, 187 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 0 113 39.00000 0.00000 100% - 0s H 0 0 33.0000000 0.00000 100% - 0s H 0 0 21.0000000 0.00000 100% - 0s H 0 0 19.0000000 0.00000 100% - 0s 0 0 0.15348 0 115 19.00000 0.15348 99.2% - 0s H 0 0 18.0000000 0.15348 99.1% - 0s 0 0 0.69754 0 122 18.00000 0.69754 96.1% - 0s 0 0 0.69754 0 122 18.00000 0.69754 96.1% - 0s 0 0 0.69754 0 122 18.00000 0.69754 96.1% - 0s 0 2 0.71522 0 121 18.00000 0.71522 96.0% - 0s H 27 26 6.0000000 1.00000 83.3% 16.7 0s * 47 19 32 5.0000000 1.00000 80.0% 13.4 0s Cutting planes: Gomory: 3 Zero half: 2 Explored 111 nodes (2580 simplex iterations) in 0.12 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%