Gurobi 5.0.1 (linux64) logging started Sun Nov 18 05:49:59 2012 Optimize a model with 321 rows, 338 columns and 1138 nonzeros Presolve removed 0 rows and 20 columns Presolve time: 0.00s Presolved: 321 rows, 318 columns, 1118 nonzeros Variable types: 0 continuous, 318 integer (317 binary) Found heuristic solution: objective 57.0000000 Root relaxation: objective 0.000000e+00, 230 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 0 137 57.00000 0.00000 100% - 0s H 0 0 35.0000000 0.00000 100% - 0s H 0 0 34.0000000 0.00000 100% - 0s H 0 0 29.0000000 0.00000 100% - 0s 0 0 0.19396 0 139 29.00000 0.19396 99.3% - 0s H 0 0 17.0000000 0.19396 98.9% - 0s 0 0 0.85194 0 144 17.00000 0.85194 95.0% - 0s H 0 0 12.0000000 0.85194 92.9% - 0s 0 0 0.85221 0 149 12.00000 0.85221 92.9% - 0s 0 0 0.85221 0 145 12.00000 0.85221 92.9% - 0s H 0 0 8.0000000 0.85221 89.3% - 0s 0 2 0.85664 0 145 8.00000 0.85664 89.3% - 0s H 27 18 4.0000000 1.00000 75.0% 35.9 0s * 49 13 11 3.0000000 1.00000 66.7% 38.9 0s * 69 2 3 2.0000000 1.59709 20.1% 49.8 0s Cutting planes: Gomory: 4 Zero half: 1 Mod-K: 1 Explored 70 nodes (4277 simplex iterations) in 0.18 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%