Gurobi 5.0.1 (linux64) logging started Tue Nov 20 05:48:38 2012 Optimize a model with 127 rows, 51 columns and 254 nonzeros Presolve removed 60 rows and 15 columns Presolve time: 0.00s Presolved: 67 rows, 36 columns, 147 nonzeros Variable types: 0 continuous, 36 integer (36 binary) Found heuristic solution: objective 22.0000000 Root relaxation: objective 2.300000e+01, 43 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time * 0 0 0 23.0000000 23.00000 0.0% - 0s Explored 0 nodes (55 simplex iterations) in 0.00 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 2.300000000000e+01, best bound 2.300000000000e+01, gap 0.0%