Gurobi 5.0.1 (linux64) logging started Tue Nov 20 12:32:06 2012 Optimize a model with 210 rows, 89 columns and 420 nonzeros Presolve removed 62 rows and 15 columns Presolve time: 0.00s Presolved: 148 rows, 74 columns, 310 nonzeros Variable types: 0 continuous, 74 integer (74 binary) Found heuristic solution: objective 36.0000000 Root relaxation: objective 4.175000e+01, 100 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 41.75000 0 66 36.00000 41.75000 16.0% - 0s H 0 0 41.0000000 41.75000 1.83% - 0s Explored 0 nodes (115 simplex iterations) in 0.00 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 4.100000000000e+01, best bound 4.100000000000e+01, gap 0.0%