Gurobi 5.0.1 (linux64) logging started Wed Apr 24 01:08:32 2013

Optimize a model with 24549 rows, 24059 columns and 96089 nonzeros
Presolve removed 767 rows and 0 columns
Presolve time: 0.13s
Presolved: 23782 rows, 24059 columns, 94555 nonzeros
Variable types: 24010 continuous, 49 integer (49 binary)

Root relaxation: objective 5.698184e+04, 5058 iterations, 0.52 seconds

    Nodes    |    Current Node    |     Objective Bounds      |     Work
 Expl Unexpl |  Obj  Depth IntInf | Incumbent    BestBd   Gap | It/Node Time

     0     0 56981.8401    0    2          - 56981.8401     -      -    0s
H    0     0                    57072.000000 56981.8401  0.16%     -    0s
     0     0 56987.0181    0    3 57072.0000 56987.0181  0.15%     -    0s
     0     0 57030.8401    0    1 57072.0000 57030.8401  0.07%     -    1s
*    0     0               0    57032.000000 57032.0000   0.0%     -    1s

Cutting planes:
  Gomory: 1

Explored 0 nodes (5178 simplex iterations) in 1.17 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 5.703200000000e+04, best bound 5.703200000000e+04, gap 0.0%