Gurobi 5.0.1 (linux64) logging started Wed Apr 24 01:11:34 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 4.556724e+04, 3642 iterations, 1.04 seconds

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

     0     0 45567.2403    0   42          - 45567.2403     -      -    1s
H    0     0                    62304.000000 45567.2403  26.9%     -    1s
     0     0 53656.2379    0   11 62304.0000 53656.2379  13.9%     -    3s
H    0     0                    61874.204157 53656.2379  13.3%     -    3s
H    0     0                    58391.000000 53656.2379  8.11%     -    3s
     0     0 54426.6358    0    5 58391.0000 54426.6358  6.79%     -    4s
H    0     0                    57464.000000 54426.6358  5.29%     -    4s
     0     0 54454.2531    0    5 57464.0000 54454.2531  5.24%     -    4s
H    0     0                    57185.000000 54454.2531  4.78%     -    4s
H    0     0                    54953.000000 54454.2531  0.91%     -    4s
     0     2 54471.8436    0    4 54953.0000 54471.8436  0.88%     -    4s
     3     4 54625.8407    3    3 54953.0000 54517.4937  0.79%   180    5s
H    5     4                    54816.571429 54517.4937  0.55%   145    5s
H    6     4                    54742.000000 54517.4937  0.41%   138    5s
H    9     4                    54733.964286 54517.4937  0.40%   108    5s
H   15     1                    54668.444444 54624.1595  0.08%  93.6    5s
*   17     1               5    54659.000000 54624.1595  0.06%  89.4    5s

Cutting planes:
  Implied bound: 48
  MIR: 1

Explored 19 nodes (8155 simplex iterations) in 5.50 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 5.465900000000e+04, best bound 5.465900000000e+04, gap 0.0%