Gurobi 5.0.1 (linux64) logging started Wed Apr 24 00:52:21 2013 Optimize a model with 6024 rows, 5784 columns and 23064 nonzeros Presolve removed 477 rows and 0 columns Presolve time: 0.04s Presolved: 5547 rows, 5784 columns, 22110 nonzeros Variable types: 5760 continuous, 24 integer (24 binary) Root relaxation: objective 2.112847e+04, 437 iterations, 0.02 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 21128.4672 0 2 - 21128.4672 - - 0s H 0 0 21285.000000 21128.4672 0.74% - 0s H 0 0 21137.000000 21128.4672 0.04% - 0s Explored 0 nodes (437 simplex iterations) in 0.10 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 2.113700000000e+04, best bound 2.113700000000e+04, gap 0.0%