Gurobi 5.0.1 (linux64) logging started Wed Apr 24 01:48:37 2013

Optimize a model with 704 rows, 41024 columns and 81984 nonzeros
Presolve time: 0.06s
Presolved: 704 rows, 41024 columns, 81984 nonzeros
Variable types: 40960 continuous, 64 integer (64 binary)

Root relaxation: objective 6.728160e+04, 1314 iterations, 0.04 seconds

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

     0     0 67281.6041    0   11          - 67281.6041     -      -    0s
H    0     0                    72447.000000 67281.6041  7.13%     -    0s
H    0     0                    67578.000000 67281.6041  0.44%     -    0s
     0     0 67508.1538    0    5 67578.0000 67508.1538  0.10%     -    0s
     0     0 67541.7595    0    2 67578.0000 67541.7595  0.05%     -    0s
     0     0 67541.7595    0    9 67578.0000 67541.7595  0.05%     -    0s
     0     0 67541.7595    0    5 67578.0000 67541.7595  0.05%     -    0s
     0     0 67541.7595    0    4 67578.0000 67541.7595  0.05%     -    0s
     0     0 67541.7595    0    2 67578.0000 67541.7595  0.05%     -    0s
     0     0 67543.6043    0    2 67578.0000 67543.6043  0.05%     -    0s
     0     0 67544.7179    0    3 67578.0000 67544.7179  0.05%     -    0s
     0     0 67545.1064    0    1 67578.0000 67545.1064  0.05%     -    0s
     0     0 67545.2979    0    1 67578.0000 67545.2979  0.05%     -    0s
     0     0 67560.6842    0    1 67578.0000 67560.6842  0.03%     -    0s
     0     0 67562.5819    0    2 67578.0000 67562.5819  0.02%     -    0s
*    0     0               0    67565.000000 67565.0000   0.0%     -    0s

Cutting planes:
  Implied bound: 40
  Flow cover: 2

Explored 0 nodes (2724 simplex iterations) in 0.85 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 6.756500000000e+04, best bound 6.756500000000e+04, gap 0.0%