Gurobi 5.0.1 (linux64) logging started Wed Apr 24 04:47:43 2013

Optimize a model with 73270 rows, 72420 columns and 289170 nonzeros
Presolve removed 85 rows and 0 columns
Presolve time: 0.34s
Presolved: 73185 rows, 72420 columns, 289085 nonzeros
Variable types: 72335 continuous, 85 integer (85 binary)

Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
    8160    7.2636396e+04   6.567870e+04   0.000000e+00      5s
    9634    7.3142441e+04   0.000000e+00   0.000000e+00      9s

Root relaxation: objective 7.314244e+04, 9634 iterations, 8.87 seconds

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

     0     0 73142.4406    0   65          - 73142.4406     -      -    9s
H    0     0                    122400.00000 73142.4406  40.2%     -   16s
     0     0 91434.1323    0   22 122400.000 91434.1323  25.3%     -   32s
H    0     0                    111827.00000 91434.1323  18.2%     -   34s
     0     0 97064.5272    0   11 111827.000 97064.5272  13.2%     -   38s
H    0     0                    110877.00000 97064.5272  12.5%     -   38s
     0     0 97920.6199    0    5 110877.000 97920.6199  11.7%     -   39s
H    0     0                    104770.69574 97920.6199  6.54%     -   39s
H    0     0                    103450.00000 97920.6199  5.34%     -   40s
H    0     0                    98787.000000 97920.6199  0.88%     -   40s
     0     2 97927.1697    0    5 98787.0000 97927.1697  0.87%     -   42s
    12    14 98343.3636   10    2 98787.0000 98073.8143  0.72%   270   45s
H   21    15                    98468.000000 98073.8143  0.40%   218   46s
*   27    13              20    98458.000000 98073.8143  0.39%   183   47s
*   35    17               8    98427.000000 98074.9145  0.36%   218   48s
    45    20 98391.1866    7    4 98427.0000 98127.8821  0.30%   218   50s
H   67    21                    98425.000000 98168.0863  0.26%   184   51s
H   82    22                    98383.000000 98180.9704  0.21%   172   53s
   105    13 98340.6000    8    1 98383.0000 98315.2424  0.07%   156   55s
*  111    11               8    98379.000000 98329.0736  0.05%   152   55s

Cutting planes:
  Implied bound: 85

Explored 122 nodes (39267 simplex iterations) in 56.05 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 9.837900000000e+04, best bound 9.837059400120e+04, gap 0.0085%