Gurobi 5.0.1 (linux64) logging started Mon Feb 4 19:13:39 2013 Optimize a model with 88641 rows, 6561 columns and 269001 nonzeros Presolve removed 7161 rows and 3343 columns Presolve time: 0.83s Presolved: 81480 rows, 3218 columns, 246623 nonzeros Variable types: 28 continuous, 3190 integer (3190 binary) Found heuristic solution: objective 126201.00000 Root relaxation: objective 9.928017e+04, 13809 iterations, 1.44 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 99280.1667 0 22 126201.000 99280.1667 21.3% - 2s H 0 0 99293.000000 99280.1667 0.01% - 2s H 0 0 99290.000000 99280.1667 0.01% - 2s Explored 0 nodes (13853 simplex iterations) in 2.66 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 9.929000000000e+04, best bound 9.928100000000e+04, gap 0.0091%