Gurobi 5.0.1 (linux64) logging started Tue Nov 20 05:48:41 2012 Optimize a model with 191 rows, 64 columns and 382 nonzeros Presolve removed 76 rows and 7 columns Presolve time: 0.00s Presolved: 115 rows, 57 columns, 264 nonzeros Variable types: 0 continuous, 57 integer (57 binary) Found heuristic solution: objective 22.0000000 Root relaxation: objective 2.587500e+01, 75 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 25.87500 0 51 22.00000 25.87500 17.6% - 0s 0 0 25.00000 0 53 22.00000 25.00000 13.6% - 0s H 0 0 23.0000000 25.00000 8.70% - 0s 0 0 25.00000 0 48 23.00000 25.00000 8.70% - 0s 0 0 24.80000 0 52 23.00000 24.80000 7.83% - 0s H 0 0 24.0000000 24.80000 3.33% - 0s Cutting planes: Gomory: 1 Zero half: 7 Explored 0 nodes (173 simplex iterations) in 0.01 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 2.400000000000e+01, best bound 2.400000000000e+01, gap 0.0%