Gurobi 5.0.1 (linux64) logging started Wed Apr 24 01:58:15 2013

Optimize a model with 44352 rows, 43692 columns and 174372 nonzeros
Presolve removed 66 rows and 0 columns
Presolve time: 0.19s
Presolved: 44286 rows, 43692 columns, 174306 nonzeros
Variable types: 43626 continuous, 66 integer (66 binary)

Root relaxation: objective 5.964338e+04, 6249 iterations, 4.17 seconds

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

     0     0 59643.3775    0   53          - 59643.3775     -      -    4s
H    0     0                    96782.000000 59643.3775  38.4%     -    7s
     0     0 75768.0637    0   13 96782.0000 75768.0637  21.7%     -   14s
H    0     0                    94681.993318 75768.0637  20.0%     -   14s
H    0     0                    88148.000000 75768.0637  14.0%     -   14s
     0     0 79584.7757    0    3 88148.0000 79584.7757  9.71%     -   15s
H    0     0                    84488.487161 79584.7757  5.80%     -   15s
H    0     0                    83557.000000 79584.7757  4.75%     -   15s
H    0     0                    82972.000000 79584.7757  4.08%     -   15s
     0     0 79587.4857    0    2 82972.0000 79587.4857  4.08%     -   15s
H    0     0                    81347.676190 79587.4857  2.16%     -   15s
H    0     0                    80975.000000 79587.4857  1.71%     -   15s
H    0     0                    79920.000000 79587.4857  0.42%     -   16s
     0     2 79591.5714    0    2 79920.0000 79591.5714  0.41%     -   16s
*    5     1               4    79871.000000 79859.5243  0.01%   312   17s

Cutting planes:
  Implied bound: 63

Explored 7 nodes (14959 simplex iterations) in 17.80 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 7.987100000000e+04, best bound 7.987100000000e+04, gap 0.0%