Gurobi 5.0.1 (linux64) logging started Sat Nov 17 23:37:50 2012 Optimize a model with 67 rows, 54 columns and 219 nonzeros Presolve time: 0.00s Presolved: 67 rows, 54 columns, 219 nonzeros Variable types: 0 continuous, 54 integer (54 binary) Found heuristic solution: objective 16.0000000 Root relaxation: objective 0.000000e+00, 29 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 20 16.00000 0.00000 100% - 0s H 0 0 11.0000000 0.00000 100% - 0s H 0 0 10.0000000 0.00000 100% - 0s 0 0 0.56250 0 21 10.00000 0.56250 94.4% - 0s 0 0 1.00000 0 24 10.00000 1.00000 90.0% - 0s 0 0 1.04062 0 25 10.00000 1.04062 89.6% - 0s H 0 0 9.0000000 1.04062 88.4% - 0s 0 0 1.08514 0 24 9.00000 1.08514 87.9% - 0s 0 2 1.29167 0 24 9.00000 1.29167 85.6% - 0s * 7 7 5 7.0000000 3.33173 52.4% 17.0 0s Cutting planes: Gomory: 2 Zero half: 2 Mod-K: 3 Explored 23 nodes (373 simplex iterations) in 0.03 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 7.000000000000e+00, best bound 7.000000000000e+00, gap 0.0%