Gurobi 5.0.1 (linux64) logging started Wed Apr 24 03:20:57 2013

Optimize a model with 61776 rows, 60996 columns and 243516 nonzeros
Presolve removed 78 rows and 0 columns
Presolve time: 0.28s
Presolved: 61698 rows, 60996 columns, 243438 nonzeros
Variable types: 60918 continuous, 78 integer (78 binary)

Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
    7106    6.5314203e+04   3.591073e+01   0.000000e+00      5s
    7234    6.5318554e+04   0.000000e+00   0.000000e+00      5s

Root relaxation: objective 6.531855e+04, 7234 iterations, 5.43 seconds

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

     0     0 65318.5537    0   57          - 65318.5537     -      -    6s
H    0     0                    106050.00000 65318.5537  38.4%     -   10s
     0     0 78317.2611    0   12 106050.000 78317.2611  26.2%     -   19s
H    0     0                    97454.000000 78317.2611  19.6%     -   19s
     0     0 83231.6059    0    8 97454.0000 83231.6059  14.6%     -   23s
H    0     0                    96262.000000 83231.6059  13.5%     -   23s
     0     0 85178.2237    0    6 96262.0000 85178.2237  11.5%     -   25s
     0     0 85749.0540    0    3 96262.0000 85749.0540  10.9%     -   26s
H    0     0                    88028.350093 85749.0540  2.59%     -   26s
H    0     0                    87492.000000 85749.0540  1.99%     -   26s
     0     0 85994.0597    0    5 87492.0000 85994.0597  1.71%     -   27s
     0     0 86039.6563    0    5 87492.0000 86039.6563  1.66%     -   28s
H    0     0                    87324.000000 86039.6563  1.47%     -   28s
H    0     0                    86661.000000 86039.6563  0.72%     -   28s
H    0     0                    86427.000000 86039.6563  0.45%     -   29s
H    0     0                    86219.000000 86039.6563  0.21%     -   30s
     0     2 86042.8994    0    5 86219.0000 86042.8994  0.20%     -   31s
*   13     3               3    86133.000000 86090.3165  0.05%   147   32s
*   16     2               3    86132.000000 86090.4863  0.05%   140   32s

Cutting planes:
  Implied bound: 77

Explored 19 nodes (21748 simplex iterations) in 32.82 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 8.613200000000e+04, best bound 8.613200000000e+04, gap 0.0%