Gurobi 5.0.1 (linux64) logging started Tue Nov 20 15:55:42 2012 Optimize a model with 237 rows, 214 columns and 474 nonzeros Presolve removed 214 rows and 193 columns Presolve time: 0.00s Presolved: 23 rows, 21 columns, 46 nonzeros Variable types: 0 continuous, 21 integer (21 binary) Found heuristic solution: objective 130.0000000 Root relaxation: objective 1.315000e+02, 22 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 131.50000 0 21 130.00000 131.50000 1.15% - 0s H 0 0 131.0000000 131.50000 0.38% - 0s Explored 0 nodes (22 simplex iterations) in 0.00 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 1.310000000000e+02, best bound 1.310000000000e+02, gap 0.0%