Gurobi 5.0.1 (linux64) logging started Sun Nov 18 03:11:25 2012 Optimize a model with 177 rows, 138 columns and 578 nonzeros Presolve time: 0.00s Presolved: 177 rows, 138 columns, 578 nonzeros Variable types: 0 continuous, 138 integer (138 binary) Found heuristic solution: objective 43.0000000 Root relaxation: objective 0.000000e+00, 84 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 49 43.00000 0.00000 100% - 0s H 0 0 30.0000000 0.00000 100% - 0s 0 0 0.51109 0 50 30.00000 0.51109 98.3% - 0s 0 0 1.00000 0 49 30.00000 1.00000 96.7% - 0s 0 0 1.02366 0 51 30.00000 1.02366 96.6% - 0s H 0 0 28.0000000 1.02366 96.3% - 0s 0 0 1.14038 0 53 28.00000 1.14038 95.9% - 0s 0 0 1.21088 0 53 28.00000 1.21088 95.7% - 0s H 0 0 21.0000000 1.21088 94.2% - 0s H 0 0 20.0000000 1.21088 93.9% - 0s H 0 0 19.0000000 1.21088 93.6% - 0s 0 2 1.22948 0 53 19.00000 1.22948 93.5% - 0s * 16 16 10 15.0000000 3.74209 75.1% 28.1 0s * 113 6 8 14.0000000 11.58824 17.2% 19.5 0s Cutting planes: Gomory: 3 Mod-K: 1 Explored 120 nodes (2630 simplex iterations) in 0.14 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 1.400000000000e+01, best bound 1.400000000000e+01, gap 0.0%