Gurobi 5.0.1 (linux64) logging started Tue Nov 20 15:55:21 2012 Optimize a model with 64 rows, 106 columns and 128 nonzeros Presolve removed 59 rows and 101 columns Presolve time: 0.00s Presolved: 5 rows, 5 columns, 10 nonzeros Variable types: 0 continuous, 5 integer (5 binary) Found heuristic solution: objective 72.0000000 Root relaxation: cutoff, 4 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 cutoff 0 72.00000 72.99993 1.39% - 0s Explored 0 nodes (4 simplex iterations) in 0.00 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 7.200000000000e+01, best bound 7.200000000000e+01, gap 0.0%