Gurobi 5.0.1 (linux64) logging started Wed Apr 24 01:26:34 2013

Optimize a model with 33174 rows, 32604 columns and 130074 nonzeros
Presolve removed 57 rows and 0 columns
Presolve time: 0.14s
Presolved: 33117 rows, 32604 columns, 130017 nonzeros
Variable types: 32547 continuous, 57 integer (57 binary)

Root relaxation: objective 4.814983e+04, 4248 iterations, 1.58 seconds

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

     0     0 48149.8252    0   47          - 48149.8252     -      -    1s
H    0     0                    67687.000000 48149.8252  28.9%     -    2s
     0     0 56009.9129    0    8 67687.0000 56009.9129  17.3%     -    5s
H    0     0                    63991.986439 56009.9129  12.5%     -    5s
H    0     0                    61300.000000 56009.9129  8.63%     -    5s
H    0     0                    61006.000000 56009.9129  8.19%     -    5s
     0     0 57484.3756    0    4 61006.0000 57484.3756  5.77%     -    5s
H    0     0                    59184.665025 57484.3756  2.87%     -    5s
H    0     0                    58308.000000 57484.3756  1.41%     -    5s
H    0     0                    57665.000000 57484.3756  0.31%     -    5s
     0     0 57493.4991    0    2 57665.0000 57493.4991  0.30%     -    5s
     0     2 57498.4886    0    2 57665.0000 57498.4886  0.29%     -    6s
*    3     2               2    57566.000000 57554.5062  0.02%   130    6s

Cutting planes:
  Gomory: 1
  Implied bound: 51

Explored 5 nodes (7776 simplex iterations) in 6.57 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 5.756600000000e+04, best bound 5.756600000000e+04, gap 0.0%