Gurobi 5.0.1 (linux64) logging started Tue Nov 20 12:32:00 2012 Optimize a model with 126 rows, 63 columns and 252 nonzeros Presolve removed 60 rows and 21 columns Presolve time: 0.00s Presolved: 66 rows, 42 columns, 138 nonzeros Variable types: 0 continuous, 42 integer (42 binary) Found heuristic solution: objective 29.0000000 Root relaxation: objective 3.066667e+01, 53 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 30.66667 0 36 29.00000 30.66667 5.75% - 0s H 0 0 30.0000000 30.66667 2.22% - 0s Explored 0 nodes (57 simplex iterations) in 0.00 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 3.000000000000e+01, best bound 3.000000000000e+01, gap 0.0%