Gurobi 5.0.1 (linux64) logging started Mon Nov 19 06:43:11 2012 Optimize a model with 170 rows, 27 columns and 340 nonzeros Presolve removed 121 rows and 1 columns Presolve time: 0.00s Presolved: 49 rows, 26 columns, 211 nonzeros Variable types: 0 continuous, 26 integer (26 binary) Found heuristic solution: objective 6.0000000 Root relaxation: cutoff, 23 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 6.00000 6.99999 16.7% - 0s Explored 0 nodes (23 simplex iterations) in 0.00 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 6.000000000000e+00, best bound 6.000000000000e+00, gap 0.0%