Gurobi 5.0.1 (linux64) logging started Wed Apr 24 02:19:26 2013

Optimize a model with 770 rows, 49070 columns and 98070 nonzeros
Presolve time: 0.07s
Presolved: 770 rows, 49070 columns, 98070 nonzeros
Variable types: 49000 continuous, 70 integer (70 binary)

Root relaxation: objective 7.784594e+04, 2001 iterations, 0.06 seconds

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

     0     0 77845.9426    0    3          - 77845.9426     -      -    0s
H    0     0                    78321.000000 77845.9426  0.61%     -    0s
H    0     0                    78087.000000 77845.9426  0.31%     -    0s
     0     0 77877.8031    0    2 78087.0000 77877.8031  0.27%     -    0s
     0     0 77877.8031    0    3 78087.0000 77877.8031  0.27%     -    0s
     0     0 77877.8031    0    2 78087.0000 77877.8031  0.27%     -    0s
     0     0 77877.8031    0    2 78087.0000 77877.8031  0.27%     -    0s
     0     2 77886.6250    0    2 78087.0000 77886.6250  0.26%     -    0s
H    8     4                    78048.000000 77946.2906  0.13%  27.2    0s
*   10     4               8    78030.000000 77946.2906  0.11%  23.7    0s
*   15     1               6    77974.000000 77974.0000   0.0%  28.4    0s

Cutting planes:
  Implied bound: 24
  Flow cover: 2

Explored 16 nodes (3940 simplex iterations) in 0.98 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 7.797400000000e+04, best bound 7.797400000000e+04, gap 0.0%