Gurobi 5.0.1 (linux64) logging started Sun Nov 18 03:19:05 2012 Optimize a model with 175 rows, 148 columns and 583 nonzeros Presolve removed 0 rows and 2 columns Presolve time: 0.00s Presolved: 175 rows, 146 columns, 581 nonzeros Variable types: 0 continuous, 146 integer (145 binary) Found heuristic solution: objective 33.0000000 Root relaxation: objective 0.000000e+00, 87 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 56 33.00000 0.00000 100% - 0s H 0 0 25.0000000 0.00000 100% - 0s 0 0 0.46429 0 57 25.00000 0.46429 98.1% - 0s 0 0 1.00000 0 59 25.00000 1.00000 96.0% - 0s 0 0 1.00000 0 60 25.00000 1.00000 96.0% - 0s 0 0 1.00000 0 56 25.00000 1.00000 96.0% - 0s H 0 0 21.0000000 1.00000 95.2% - 0s H 0 0 19.0000000 1.00000 94.7% - 0s 0 2 1.00000 0 56 19.00000 1.00000 94.7% - 0s * 24 20 15 14.0000000 3.51616 74.9% 26.1 0s * 63 29 17 13.0000000 6.26923 51.8% 19.0 0s * 80 20 7 12.0000000 7.00000 41.7% 18.1 0s * 106 14 7 11.0000000 7.29032 33.7% 18.4 0s * 108 10 7 10.0000000 7.29032 27.1% 18.4 0s Cutting planes: Gomory: 2 Mod-K: 1 Explored 121 nodes (2685 simplex iterations) in 0.10 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 1.000000000000e+01, best bound 1.000000000000e+01, gap 0.0%