Gurobi 5.0.1 (linux64) logging started Tue Nov 20 15:55:26 2012 Optimize a model with 91 rows, 133 columns and 182 nonzeros Presolve removed 86 rows and 128 columns Presolve time: 0.00s Presolved: 5 rows, 5 columns, 10 nonzeros Variable types: 0 continuous, 5 integer (5 binary) Found heuristic solution: objective 88.0000000 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 88.00000 88.99991 1.14% - 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 8.800000000000e+01, best bound 8.800000000000e+01, gap 0.0%