Gurobi 5.0.1 (linux64) logging started Sat Nov 17 23:38:27 2012 Optimize a model with 83 rows, 70 columns and 275 nonzeros Presolve time: 0.00s Presolved: 83 rows, 70 columns, 275 nonzeros Variable types: 0 continuous, 70 integer (70 binary) Found heuristic solution: objective 16.0000000 Root relaxation: objective 0.000000e+00, 37 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 28 16.00000 0.00000 100% - 0s H 0 0 15.0000000 0.00000 100% - 0s H 0 0 14.0000000 0.00000 100% - 0s H 0 0 5.0000000 0.00000 100% - 0s 0 0 0.50000 0 29 5.00000 0.50000 90.0% - 0s 0 0 1.00000 0 30 5.00000 1.00000 80.0% - 0s 0 0 1.09926 0 31 5.00000 1.09926 78.0% - 0s 0 0 1.11305 0 35 5.00000 1.11305 77.7% - 0s 0 2 1.12727 0 35 5.00000 1.12727 77.5% - 0s Cutting planes: Gomory: 3 Zero half: 1 Explored 6 nodes (256 simplex iterations) in 0.03 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%