Gurobi 5.0.1 (linux64) logging started Sat Nov 17 23:39:49 2012 Optimize a model with 103 rows, 89 columns and 344 nonzeros Presolve removed 0 rows and 2 columns Presolve time: 0.00s Presolved: 103 rows, 87 columns, 342 nonzeros Variable types: 0 continuous, 87 integer (86 binary) Found heuristic solution: objective 23.0000000 Root relaxation: objective 0.000000e+00, 52 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 35 23.00000 0.00000 100% - 0s H 0 0 16.0000000 0.00000 100% - 0s H 0 0 13.0000000 0.00000 100% - 0s 0 0 0.45714 0 36 13.00000 0.45714 96.5% - 0s H 0 0 12.0000000 0.45714 96.2% - 0s 0 0 1.00000 0 38 12.00000 1.00000 91.7% - 0s 0 0 1.00000 0 38 12.00000 1.00000 91.7% - 0s 0 0 1.00000 0 38 12.00000 1.00000 91.7% - 0s H 0 0 11.0000000 1.00000 90.9% - 0s 0 2 1.00000 0 37 11.00000 1.00000 90.9% - 0s * 13 9 8 7.0000000 2.30844 67.0% 24.5 0s Cutting planes: Gomory: 3 Mod-K: 2 Explored 47 nodes (886 simplex iterations) in 0.05 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%