Gurobi 5.0.1 (linux64) logging started Sun Nov 18 03:09:34 2012 Optimize a model with 71 rows, 69 columns and 244 nonzeros Presolve removed 0 rows and 1 columns Presolve time: 0.00s Presolved: 71 rows, 68 columns, 243 nonzeros Variable types: 0 continuous, 68 integer (67 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 32 14.00000 0.00000 100% - 0s H 0 0 13.0000000 0.00000 100% - 0s H 0 0 12.0000000 0.00000 100% - 0s H 0 0 9.0000000 0.00000 100% - 0s 0 0 0.41744 0 33 9.00000 0.41744 95.4% - 0s 0 0 1.00000 0 32 9.00000 1.00000 88.9% - 0s H 0 0 5.0000000 1.00000 80.0% - 0s 0 0 1.00000 0 33 5.00000 1.00000 80.0% - 0s 0 0 1.00000 0 33 5.00000 1.00000 80.0% - 0s H 0 0 4.0000000 1.00000 75.0% - 0s 0 2 1.00000 0 33 4.00000 1.00000 75.0% - 0s * 11 7 7 3.0000000 1.09286 63.6% 20.5 0s Cutting planes: Gomory: 2 Explored 23 nodes (523 simplex iterations) in 0.02 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%