Gurobi 5.0.1 (linux64) logging started Sat Nov 17 23:39:35 2012 Optimize a model with 145 rows, 109 columns and 469 nonzeros Presolve time: 0.00s Presolved: 145 rows, 109 columns, 469 nonzeros Variable types: 0 continuous, 109 integer (109 binary) Found heuristic solution: objective 33.0000000 Root relaxation: objective 0.000000e+00, 64 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 37 33.00000 0.00000 100% - 0s H 0 0 32.0000000 0.00000 100% - 0s H 0 0 26.0000000 0.00000 100% - 0s 0 0 0.68598 0 41 26.00000 0.68598 97.4% - 0s 0 0 0.87440 0 39 26.00000 0.87440 96.6% - 0s 0 0 0.90938 0 43 26.00000 0.90938 96.5% - 0s 0 0 0.97109 0 39 26.00000 0.97109 96.3% - 0s 0 0 1.00000 0 38 26.00000 1.00000 96.2% - 0s 0 0 1.01238 0 47 26.00000 1.01238 96.1% - 0s 0 0 1.01238 0 47 26.00000 1.01238 96.1% - 0s 0 2 1.01322 0 47 26.00000 1.01322 96.1% - 0s * 18 18 13 18.0000000 3.16667 82.4% 20.6 0s * 39 20 10 16.0000000 3.16667 80.2% 16.1 0s * 61 22 8 15.0000000 6.90000 54.0% 15.3 0s * 68 16 7 13.0000000 7.00000 46.2% 15.3 0s Cutting planes: Gomory: 1 Zero half: 1 Mod-K: 5 Explored 108 nodes (1711 simplex iterations) in 0.06 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 1.300000000000e+01, best bound 1.300000000000e+01, gap 0.0%