Gurobi 5.0.1 (linux64) logging started Sun Nov 18 05:23:12 2012 Optimize a model with 231 rows, 252 columns and 827 nonzeros Presolve removed 0 rows and 22 columns Presolve time: 0.00s Presolved: 231 rows, 230 columns, 805 nonzeros Variable types: 0 continuous, 230 integer (229 binary) Found heuristic solution: objective 41.0000000 Root relaxation: objective 0.000000e+00, 162 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 0 100 41.00000 0.00000 100% - 0s H 0 0 29.0000000 0.00000 100% - 0s H 0 0 25.0000000 0.00000 100% - 0s 0 0 0.21527 0 103 25.00000 0.21527 99.1% - 0s H 0 0 15.0000000 0.21527 98.6% - 0s H 0 0 9.0000000 0.21527 97.6% - 0s 0 0 0.70926 0 109 9.00000 0.70926 92.1% - 0s H 0 0 7.0000000 0.70926 89.9% - 0s 0 0 0.70926 0 114 7.00000 0.70926 89.9% - 0s 0 0 0.70926 0 112 7.00000 0.70926 89.9% - 0s H 0 0 6.0000000 0.70926 88.2% - 0s H 0 0 5.0000000 0.70926 85.8% - 0s H 0 0 4.0000000 0.70926 82.3% - 0s 0 2 0.72605 0 109 4.00000 0.72605 81.8% - 0s * 40 15 31 3.0000000 1.00000 66.7% 11.0 0s H 54 1 2.0000000 1.31771 34.1% 13.7 0s Cutting planes: Gomory: 4 Explored 54 nodes (1513 simplex iterations) in 0.08 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 2.000000000000e+00, best bound 2.000000000000e+00, gap 0.0%