Gurobi 5.0.1 (linux64) logging started Sun Nov 18 03:13:28 2012 Optimize a model with 157 rows, 137 columns and 527 nonzeros Presolve time: 0.00s Presolved: 157 rows, 137 columns, 527 nonzeros Variable types: 0 continuous, 137 integer (137 binary) Found heuristic solution: objective 32.0000000 Root relaxation: objective 0.000000e+00, 90 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 57 32.00000 0.00000 100% - 0s H 0 0 23.0000000 0.00000 100% - 0s H 0 0 22.0000000 0.00000 100% - 0s H 0 0 15.0000000 0.00000 100% - 0s 0 0 0.63158 0 58 15.00000 0.63158 95.8% - 0s H 0 0 14.0000000 0.63158 95.5% - 0s 0 0 1.00000 0 59 14.00000 1.00000 92.9% - 0s H 0 0 12.0000000 1.00000 91.7% - 0s 0 0 1.00000 0 62 12.00000 1.00000 91.7% - 0s 0 0 1.00000 0 61 12.00000 1.00000 91.7% - 0s 0 2 1.00000 0 61 12.00000 1.00000 91.7% - 0s * 24 19 17 11.0000000 2.67196 75.7% 22.7 0s * 47 20 17 10.0000000 2.69180 73.1% 22.1 0s * 61 18 10 9.0000000 4.82979 46.3% 19.9 0s * 69 13 7 8.0000000 4.91667 38.5% 19.1 0s * 93 1 5 7.0000000 5.97688 14.6% 18.3 0s Cutting planes: Gomory: 3 Zero half: 3 Mod-K: 1 Explored 95 nodes (2183 simplex iterations) in 0.10 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%