Gurobi 5.0.1 (linux64) logging started Wed Apr 24 01:11:19 2013

Optimize a model with 25600 rows, 25100 columns and 100100 nonzeros
Presolve removed 50 rows and 0 columns
Presolve time: 0.11s
Presolved: 25550 rows, 25100 columns, 100050 nonzeros
Variable types: 25050 continuous, 50 integer (50 binary)

Root relaxation: objective 4.511107e+04, 3291 iterations, 1.09 seconds

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

     0     0 45111.0674    0   43          - 45111.0674     -      -    1s
H    0     0                    60830.000000 45111.0674  25.8%     -    2s
     0     0 52420.1215    0    7 60830.0000 52420.1215  13.8%     -    3s
H    0     0                    58387.027781 52420.1215  10.2%     -    3s
H    0     0                    54003.000000 52420.1215  2.93%     -    3s
     0     0 53178.3147    0    3 54003.0000 53178.3147  1.53%     -    4s
H    0     0                    53215.000000 53178.3147  0.07%     -    4s
     0     0 53179.3185    0    2 53215.0000 53179.3185  0.07%     -    4s
     0     0 53204.8163    0    1 53215.0000 53204.8163  0.02%     -    4s

Cutting planes:
  Gomory: 1
  Implied bound: 44

Explored 0 nodes (5822 simplex iterations) in 4.48 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 5.321500000000e+04, best bound 5.321500000000e+04, gap 0.0%