Gurobi 5.0.1 (linux64) logging started Wed Apr 24 00:58:47 2013 Optimize a model with 16440 rows, 16040 columns and 64040 nonzeros Presolve removed 800 rows and 0 columns Presolve time: 0.09s Presolved: 15640 rows, 16040 columns, 62440 nonzeros Variable types: 16000 continuous, 40 integer (40 binary) Root relaxation: objective 4.368138e+04, 2572 iterations, 0.17 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 43681.3846 0 1 - 43681.3846 - - 0s H 0 0 43682.000000 43681.3846 0.00% - 0s Explored 0 nodes (2572 simplex iterations) in 0.32 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 4.368200000000e+04, best bound 4.368138461538e+04, gap 0.0014%