Gurobi 5.0.1 (linux64) logging started Tue Nov 20 15:55:26 2012 Optimize a model with 108 rows, 136 columns and 216 nonzeros Presolve removed 101 rows and 129 columns Presolve time: 0.00s Presolved: 7 rows, 7 columns, 14 nonzeros Variable types: 0 continuous, 7 integer (7 binary) Found heuristic solution: objective 85.0000000 Root relaxation: cutoff, 6 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 85.00000 85.99991 1.18% - 0s Explored 0 nodes (6 simplex iterations) in 0.00 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 8.500000000000e+01, best bound 8.500000000000e+01, gap 0.0%