Gurobi 5.0.1 (linux64) logging started Sat Nov 17 23:38:27 2012 Optimize a model with 95 rows, 76 columns and 311 nonzeros Presolve time: 0.00s Presolved: 95 rows, 76 columns, 311 nonzeros Variable types: 0 continuous, 76 integer (76 binary) Found heuristic solution: objective 22.0000000 Root relaxation: objective 0.000000e+00, 41 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 29 22.00000 0.00000 100% - 0s H 0 0 19.0000000 0.00000 100% - 0s H 0 0 17.0000000 0.00000 100% - 0s H 0 0 16.0000000 0.00000 100% - 0s 0 0 0.83824 0 33 16.00000 0.83824 94.8% - 0s 0 0 0.89796 0 31 16.00000 0.89796 94.4% - 0s 0 0 0.89796 0 31 16.00000 0.89796 94.4% - 0s 0 0 0.89796 0 31 16.00000 0.89796 94.4% - 0s H 0 0 15.0000000 0.89796 94.0% - 0s 0 2 1.00000 0 31 15.00000 1.00000 93.3% - 0s * 10 9 9 10.0000000 3.65000 63.5% 16.8 0s Cutting planes: Gomory: 1 Mod-K: 5 Explored 81 nodes (758 simplex iterations) in 0.04 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%