Gurobi 5.0.1 (linux64) logging started Sun Nov 18 05:35:53 2012 Optimize a model with 275 rows, 303 columns and 988 nonzeros Presolve removed 0 rows and 26 columns Presolve time: 0.00s Presolved: 275 rows, 277 columns, 962 nonzeros Variable types: 0 continuous, 277 integer (276 binary) Found heuristic solution: objective 50.0000000 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 0 116 50.00000 0.00000 100% - 0s H 0 0 35.0000000 0.00000 100% - 0s H 0 0 30.0000000 0.00000 100% - 0s H 0 0 24.0000000 0.00000 100% - 0s 0 0 0.19886 0 118 24.00000 0.19886 99.2% - 0s H 0 0 20.0000000 0.19886 99.0% - 0s 0 0 0.78132 0 121 20.00000 0.78132 96.1% - 0s H 0 0 16.0000000 0.78132 95.1% - 0s 0 0 0.78132 0 121 16.00000 0.78132 95.1% - 0s H 0 0 15.0000000 0.78132 94.8% - 0s H 0 0 8.0000000 0.78132 90.2% - 0s H 0 0 3.0000000 0.78132 74.0% - 0s 0 2 0.81169 0 121 3.00000 0.81169 72.9% - 0s * 8 2 5 2.0000000 1.46085 27.0% 51.6 0s Cutting planes: Gomory: 4 Explored 9 nodes (1185 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%