Gurobi 5.0.1 (linux64) logging started Wed Apr 24 01:13:33 2013

Optimize a model with 26622 rows, 26112 columns and 104142 nonzeros
Presolve removed 51 rows and 0 columns
Presolve time: 0.12s
Presolved: 26571 rows, 26112 columns, 104091 nonzeros
Variable types: 26061 continuous, 51 integer (51 binary)

Root relaxation: objective 5.163380e+04, 4384 iterations, 2.00 seconds

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

     0     0 51633.8027    0   43          - 51633.8027     -      -    2s
H    0     0                    68807.000000 51633.8027  25.0%     -    3s
     0     0 62994.7853    0    6 68807.0000 62994.7853  8.45%     -    4s
H    0     0                    65358.676346 62994.7853  3.62%     -    4s
H    0     0                    63729.000000 62994.7853  1.15%     -    4s
     0     0 63019.5344    0    4 63729.0000 63019.5344  1.11%     -    4s
H    0     0                    63173.000000 63019.5344  0.24%     -    4s
H    0     0                    63170.000000 63019.5344  0.24%     -    4s
     0     0 63019.5612    0    3 63170.0000 63019.5612  0.24%     -    4s
     0     0 63020.1996    0    2 63170.0000 63020.1996  0.24%     -    5s
     0     2 63020.5116    0    2 63170.0000 63020.5116  0.24%     -    5s

Cutting planes:
  Implied bound: 43

Explored 13 nodes (7896 simplex iterations) in 5.99 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 6.317000000000e+04, best bound 6.317000000000e+04, gap 0.0%