Gurobi 5.0.1 (linux64) logging started Sun Nov 18 03:10:40 2012 Optimize a model with 115 rows, 102 columns and 387 nonzeros Presolve removed 0 rows and 1 columns Presolve time: 0.00s Presolved: 115 rows, 101 columns, 386 nonzeros Variable types: 0 continuous, 101 integer (100 binary) Found heuristic solution: objective 21.0000000 Root relaxation: objective 0.000000e+00, 59 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 41 21.00000 0.00000 100% - 0s H 0 0 16.0000000 0.00000 100% - 0s H 0 0 14.0000000 0.00000 100% - 0s 0 0 0.33300 0 43 14.00000 0.33300 97.6% - 0s H 0 0 12.0000000 0.33300 97.2% - 0s 0 0 0.94748 0 46 12.00000 0.94748 92.1% - 0s H 0 0 10.0000000 0.94748 90.5% - 0s 0 0 0.94792 0 48 10.00000 0.94792 90.5% - 0s 0 2 0.97984 0 48 10.00000 0.97984 90.2% - 0s * 10 10 7 7.0000000 2.23539 68.1% 24.1 0s * 19 7 6 6.0000000 2.32621 61.2% 16.3 0s Cutting planes: Gomory: 4 Mod-K: 1 Explored 30 nodes (707 simplex iterations) in 0.05 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 6.000000000000e+00, best bound 6.000000000000e+00, gap 0.0%