Gurobi 5.0.1 (linux64) logging started Sun Nov 18 03:11:25 2012 Optimize a model with 125 rows, 112 columns and 422 nonzeros Presolve removed 0 rows and 2 columns Presolve time: 0.00s Presolved: 125 rows, 110 columns, 420 nonzeros Variable types: 0 continuous, 110 integer (109 binary) Found heuristic solution: objective 25.0000000 Root relaxation: objective 0.000000e+00, 78 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 47 25.00000 0.00000 100% - 0s H 0 0 20.0000000 0.00000 100% - 0s H 0 0 16.0000000 0.00000 100% - 0s 0 0 0.33287 0 49 16.00000 0.33287 97.9% - 0s 0 0 1.07498 0 51 16.00000 1.07498 93.3% - 0s H 0 0 9.0000000 1.07498 88.1% - 0s 0 0 1.08332 0 54 9.00000 1.08332 88.0% - 0s 0 0 1.08332 0 54 9.00000 1.08332 88.0% - 0s H 0 0 6.0000000 1.08332 81.9% - 0s 0 2 1.09597 0 54 6.00000 1.09597 81.7% - 0s * 11 6 8 5.0000000 2.71601 45.7% 15.6 0s Cutting planes: Gomory: 3 Zero half: 1 Explored 20 nodes (631 simplex iterations) in 0.06 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 5.000000000000e+00, best bound 5.000000000000e+00, gap 0.0%