Gurobi 5.0.1 (linux64) logging started Sun Nov 18 03:09:39 2012 Optimize a model with 71 rows, 70 columns and 245 nonzeros Presolve removed 0 rows and 3 columns Presolve time: 0.00s Presolved: 71 rows, 67 columns, 242 nonzeros Variable types: 0 continuous, 67 integer (66 binary) Found heuristic solution: objective 14.0000000 Root relaxation: objective 0.000000e+00, 47 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 31 14.00000 0.00000 100% - 0s H 0 0 7.0000000 0.00000 100% - 0s 0 0 0.30769 0 33 7.00000 0.30769 95.6% - 0s H 0 0 5.0000000 0.30769 93.8% - 0s H 0 0 3.0000000 0.30769 89.7% - 0s 0 0 0.80886 0 37 3.00000 0.80886 73.0% - 0s 0 0 0.80923 0 37 3.00000 0.80923 73.0% - 0s 0 0 0.80923 0 37 3.00000 0.80923 73.0% - 0s 0 2 0.81962 0 37 3.00000 0.81962 72.7% - 0s Cutting planes: Gomory: 4 Mod-K: 1 Explored 5 nodes (236 simplex iterations) in 0.03 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%