Gurobi 5.0.1 (linux64) logging started Sun Nov 18 05:33:11 2012 Optimize a model with 253 rows, 285 columns and 915 nonzeros Presolve removed 0 rows and 35 columns Presolve time: 0.00s Presolved: 253 rows, 250 columns, 880 nonzeros Variable types: 0 continuous, 250 integer (249 binary) Found heuristic solution: objective 39.0000000 Root relaxation: objective 0.000000e+00, 164 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 0 106 39.00000 0.00000 100% - 0s H 0 0 32.0000000 0.00000 100% - 0s H 0 0 30.0000000 0.00000 100% - 0s H 0 0 24.0000000 0.00000 100% - 0s 0 0 0.04767 0 108 24.00000 0.04767 100% - 0s H 0 0 18.0000000 0.04767 100% - 0s H 0 0 13.0000000 0.04767 100% - 0s 0 0 0.73684 0 110 13.00000 0.73684 94.3% - 0s H 0 0 10.0000000 0.73684 92.6% - 0s 0 0 0.73684 0 113 10.00000 0.73684 92.6% - 0s 0 0 0.73684 0 113 10.00000 0.73684 92.6% - 0s H 0 0 9.0000000 0.73684 91.8% - 0s H 0 0 8.0000000 0.73684 90.8% - 0s 0 2 0.73684 0 113 8.00000 0.73684 90.8% - 0s H 32 10 3.0000000 1.00000 66.7% 23.2 0s Cutting planes: Gomory: 4 Zero half: 1 Mod-K: 1 Explored 66 nodes (2644 simplex iterations) in 0.10 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 3.000000000000e+00, best bound 3.000000000000e+00, gap 0.0%