Gurobi 5.0.1 (linux64) logging started Sat Nov 17 23:38:40 2012 Optimize a model with 95 rows, 78 columns and 313 nonzeros Presolve time: 0.00s Presolved: 95 rows, 78 columns, 313 nonzeros Variable types: 0 continuous, 78 integer (78 binary) Found heuristic solution: objective 18.0000000 Root relaxation: objective 0.000000e+00, 48 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 30 18.00000 0.00000 100% - 0s H 0 0 15.0000000 0.00000 100% - 0s H 0 0 11.0000000 0.00000 100% - 0s 0 0 0.33816 0 32 11.00000 0.33816 96.9% - 0s 0 0 0.50723 0 34 11.00000 0.50723 95.4% - 0s 0 0 0.50723 0 34 11.00000 0.50723 95.4% - 0s H 0 0 10.0000000 0.50723 94.9% - 0s 0 2 0.51986 0 34 10.00000 0.51986 94.8% - 0s * 10 8 7 8.0000000 2.17073 72.9% 16.2 0s Cutting planes: Gomory: 1 Zero half: 2 Mod-K: 1 Explored 50 nodes (646 simplex iterations) in 0.04 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 8.000000000000e+00, best bound 8.000000000000e+00, gap 0.0%