Gurobi 5.0.1 (linux64) logging started Wed Apr 24 02:39:02 2013

Optimize a model with 803 rows, 53363 columns and 106653 nonzeros
Presolve time: 0.08s
Presolved: 803 rows, 53363 columns, 106653 nonzeros
Variable types: 53290 continuous, 73 integer (73 binary)

Root relaxation: objective 8.132187e+04, 1974 iterations, 0.07 seconds

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

     0     0 81321.8662    0    6          - 81321.8662     -      -    0s
H    0     0                    87050.000000 81321.8662  6.58%     -    0s
     0     0 81449.2624    0    4 87050.0000 81449.2624  6.43%     -    0s
     0     0 81482.6459    0    5 87050.0000 81482.6459  6.40%     -    0s
     0     0 81495.7085    0    4 87050.0000 81495.7085  6.38%     -    0s
H    0     0                    87034.693277 81495.7085  6.36%     -    0s
H    0     0                    86360.000000 81495.7085  5.63%     -    0s
     0     0 81500.4144    0    4 86360.0000 81500.4144  5.63%     -    0s
H    0     0                    86226.000000 81500.4144  5.48%     -    0s
     0     0 81500.4144    0    4 86226.0000 81500.4144  5.48%     -    0s
     0     0 81501.1342    0    5 86226.0000 81501.1342  5.48%     -    0s
H    0     0                    86173.000000 81501.1342  5.42%     -    0s
     0     0 81501.3341    0    5 86173.0000 81501.3341  5.42%     -    0s
H    0     0                    86152.000000 81501.3341  5.40%     -    1s
     0     0 81503.1714    0    4 86152.0000 81503.1714  5.40%     -    1s
H    0     0                    85802.945361 81503.1714  5.01%     -    1s
H    0     0                    85233.000000 81503.1714  4.38%     -    1s
     0     0 81503.2413    0    3 85233.0000 81503.2413  4.38%     -    1s
     0     0 81503.2413    0    3 85233.0000 81503.2413  4.38%     -    1s
     0     0 81503.2413    0    3 85233.0000 81503.2413  4.38%     -    1s
H    0     0                    82913.000000 81503.2413  1.70%     -    1s
     0     0 81503.2413    0    6 82913.0000 81503.2413  1.70%     -    1s
     0     0 81503.2413    0    4 82913.0000 81503.2413  1.70%     -    1s
     0     0 81503.2413    0    4 82913.0000 81503.2413  1.70%     -    2s
     0     0 81503.2413    0    4 82913.0000 81503.2413  1.70%     -    2s
     0     0 81503.2413    0    4 82913.0000 81503.2413  1.70%     -    2s
     0     0 81503.2413    0    5 82913.0000 81503.2413  1.70%     -    2s
     0     0 81503.2413    0    5 82913.0000 81503.2413  1.70%     -    2s
     0     0 81503.2413    0    5 82913.0000 81503.2413  1.70%     -    2s
     0     0 81503.2413    0    4 82913.0000 81503.2413  1.70%     -    2s
     0     0 81503.2413    0    5 82913.0000 81503.2413  1.70%     -    2s
     0     0 81503.2413    0    4 82913.0000 81503.2413  1.70%     -    2s
     0     0 81503.2413    0    4 82913.0000 81503.2413  1.70%     -    2s
     0     0 81503.2413    0    3 82913.0000 81503.2413  1.70%     -    2s
     0     0 81503.2413    0    3 82913.0000 81503.2413  1.70%     -    2s
     0     2 81506.6542    0    3 82913.0000 81506.6542  1.70%     -    3s
H    8     8                    82796.000000 81600.1282  1.44%  70.1    3s
H   12    12                    82384.000000 81600.1282  0.95%  51.2    3s
H   13    13                    82036.000000 81600.1282  0.53%  48.0    3s
H   15    10                    81969.000000 81600.1282  0.45%  43.4    3s
*   16     9              14    81925.000000 81600.1282  0.40%  42.0    3s
H   23     6                    81789.000000 81674.8085  0.14%  50.1    3s
*   24     5               8    81766.000000 81674.8085  0.11%  50.6    3s
H   25     3                    81734.000000 81674.8085  0.07%  48.6    3s
*   27     2               7    81708.000000 81685.3617  0.03%  47.4    3s

Cutting planes:
  Implied bound: 128
  Flow cover: 4

Explored 30 nodes (5724 simplex iterations) in 3.83 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 8.170800000000e+04, best bound 8.170800000000e+04, gap 0.0%