Gurobi 5.0.1 (linux64) logging started Sun Nov 18 03:12:13 2012 Optimize a model with 165 rows, 136 columns and 546 nonzeros Presolve time: 0.00s Presolved: 165 rows, 136 columns, 546 nonzeros Variable types: 0 continuous, 136 integer (136 binary) Found heuristic solution: objective 36.0000000 Root relaxation: objective 0.000000e+00, 78 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 53 36.00000 0.00000 100% - 0s H 0 0 25.0000000 0.00000 100% - 0s 0 0 0.85031 0 54 25.00000 0.85031 96.6% - 0s 0 0 1.12735 0 56 25.00000 1.12735 95.5% - 0s 0 0 1.21672 0 56 25.00000 1.21672 95.1% - 0s 0 0 1.23142 0 57 25.00000 1.23142 95.1% - 0s H 0 0 21.0000000 1.23142 94.1% - 0s H 0 0 18.0000000 1.23142 93.2% - 0s H 0 0 14.0000000 1.23142 91.2% - 0s 0 2 1.27490 0 57 14.00000 1.27490 90.9% - 0s * 37 25 16 13.0000000 3.54610 72.7% 16.0 0s * 65 27 10 12.0000000 5.28099 56.0% 18.0 0s Cutting planes: Gomory: 3 Mod-K: 3 Explored 180 nodes (3502 simplex iterations) in 0.14 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%