Gurobi 5.0.1 (linux64) logging started Sat Nov 17 23:39:13 2012 Optimize a model with 133 rows, 101 columns and 431 nonzeros Presolve time: 0.00s Presolved: 133 rows, 101 columns, 431 nonzeros Variable types: 0 continuous, 101 integer (101 binary) Found heuristic solution: objective 34.0000000 Root relaxation: objective 0.000000e+00, 61 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 35 34.00000 0.00000 100% - 0s H 0 0 30.0000000 0.00000 100% - 0s H 0 0 26.0000000 0.00000 100% - 0s 0 0 0.65893 0 37 26.00000 0.65893 97.5% - 0s H 0 0 25.0000000 0.65893 97.4% - 0s 0 0 0.67500 0 37 25.00000 0.67500 97.3% - 0s 0 0 0.68986 0 39 25.00000 0.68986 97.2% - 0s H 0 0 23.0000000 0.68986 97.0% - 0s 0 0 0.69107 0 37 23.00000 0.69107 97.0% - 0s 0 0 0.69208 0 42 23.00000 0.69208 97.0% - 0s H 0 0 22.0000000 0.69208 96.9% - 0s H 0 0 20.0000000 0.69208 96.5% - 0s 0 2 0.69701 0 42 20.00000 0.69701 96.5% - 0s * 18 15 13 16.0000000 3.57639 77.6% 16.8 0s * 29 16 10 13.0000000 3.68750 71.6% 15.9 0s * 61 14 10 12.0000000 5.85714 51.2% 14.6 0s Cutting planes: Gomory: 1 Zero half: 6 Explored 112 nodes (1679 simplex iterations) in 0.07 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 1.200000000000e+01, best bound 1.200000000000e+01, gap 0.0%