Gurobi 5.0.1 (linux64) logging started Wed Apr 24 02:02:43 2013

Optimize a model with 737 rows, 44957 columns and 89847 nonzeros
Presolve time: 0.06s
Presolved: 737 rows, 44957 columns, 89847 nonzeros
Variable types: 44890 continuous, 67 integer (67 binary)

Root relaxation: objective 7.647049e+04, 2021 iterations, 0.06 seconds

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

     0     0 76470.4936    0    8          - 76470.4936     -      -    0s
H    0     0                    78613.000000 76470.4936  2.73%     -    0s
     0     0 76899.1155    0    5 78613.0000 76899.1155  2.18%     -    0s
     0     0 76916.4732    0    8 78613.0000 76916.4732  2.16%     -    0s
     0     0 76918.5033    0    5 78613.0000 76918.5033  2.16%     -    0s
     0     0 76923.2184    0    7 78613.0000 76923.2184  2.15%     -    0s
H    0     0                    78326.000000 76923.2184  1.79%     -    0s
     0     0 76925.1320    0    4 78326.0000 76925.1320  1.79%     -    0s
     0     0 76925.5937    0    7 78326.0000 76925.5937  1.79%     -    0s
H    0     0                    78306.000000 76925.5937  1.76%     -    0s
     0     0 76926.2929    0    6 78306.0000 76926.2929  1.76%     -    0s
H    0     0                    78288.000000 76926.2929  1.74%     -    0s
     0     0 76926.3399    0    6 78288.0000 76926.3399  1.74%     -    1s
H    0     0                    78266.000000 76926.3399  1.71%     -    1s
     0     2 76926.5309    0    6 78266.0000 76926.5309  1.71%     -    1s
H    6     6                    77652.500000 77134.3408  0.67%  90.8    1s
*    7     4               5    77192.000000 77134.3408  0.07%  84.6    1s

Cutting planes:
  Implied bound: 159
  Flow cover: 6

Explored 11 nodes (3265 simplex iterations) in 1.51 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 7.719200000000e+04, best bound 7.719200000000e+04, gap 0.0%