Gurobi 5.0.1 (linux64) logging started Wed Apr 24 00:58:49 2013 Optimize a model with 16440 rows, 16040 columns and 64040 nonzeros Presolve removed 1931 rows and 0 columns Presolve time: 0.10s Presolved: 14509 rows, 16040 columns, 60178 nonzeros Variable types: 16000 continuous, 40 integer (40 binary) Root relaxation: objective 4.566900e+04, 2396 iterations, 0.15 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time * 0 0 0 45669.000000 45669.0000 0.0% - 0s Explored 0 nodes (2396 simplex iterations) in 0.27 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 4.566900000000e+04, best bound 4.566900000000e+04, gap 0.0%