Gurobi 5.0.1 (linux64) logging started Sun Nov 18 05:53:53 2012 Optimize a model with 381 rows, 376 columns and 1326 nonzeros Presolve removed 0 rows and 22 columns Presolve time: 0.00s Presolved: 381 rows, 354 columns, 1304 nonzeros Variable types: 0 continuous, 354 integer (353 binary) Found heuristic solution: objective 78.0000000 Root relaxation: objective 0.000000e+00, 202 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 0 149 78.00000 0.00000 100% - 0s H 0 0 61.0000000 0.00000 100% - 0s H 0 0 45.0000000 0.00000 100% - 0s 0 0 0.31397 0 151 45.00000 0.31397 99.3% - 0s H 0 0 43.0000000 0.31397 99.3% - 0s H 0 0 38.0000000 0.31397 99.2% - 0s 0 0 0.76797 0 154 38.00000 0.76797 98.0% - 0s H 0 0 36.0000000 0.76797 97.9% - 0s 0 0 0.76858 0 157 36.00000 0.76858 97.9% - 0s 0 0 0.76858 0 157 36.00000 0.76858 97.9% - 0s H 0 0 33.0000000 0.76858 97.7% - 0s H 0 0 31.0000000 0.76858 97.5% - 0s H 0 0 29.0000000 0.76858 97.3% - 0s 0 2 0.77313 0 156 29.00000 0.77313 97.3% - 0s * 23 21 17 10.0000000 1.00000 90.0% 36.3 0s * 117 49 15 9.0000000 1.14258 87.3% 27.0 0s Cutting planes: Gomory: 4 Zero half: 6 Mod-K: 1 Explored 311 nodes (9669 simplex iterations) in 0.38 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 9.000000000000e+00, best bound 9.000000000000e+00, gap 0.0%