Gurobi 5.0.1 (linux64) logging started Wed Apr 24 01:48:15 2013

Optimize a model with 704 rows, 41024 columns and 81984 nonzeros
Presolve time: 0.06s
Presolved: 704 rows, 41024 columns, 81984 nonzeros
Variable types: 40960 continuous, 64 integer (64 binary)

Root relaxation: objective 7.696276e+04, 1627 iterations, 0.05 seconds

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

     0     0 76962.7574    0    7          - 76962.7574     -      -    0s
H    0     0                    81339.000000 76962.7574  5.38%     -    0s
H    0     0                    77337.000000 76962.7574  0.48%     -    0s
     0     0 77266.5183    0    3 77337.0000 77266.5183  0.09%     -    0s
     0     0 77266.5183    0    7 77337.0000 77266.5183  0.09%     -    0s
     0     0 77266.7163    0    3 77337.0000 77266.7163  0.09%     -    0s
     0     0 77281.9393    0    2 77337.0000 77281.9393  0.07%     -    0s
     0     0 77284.2158    0    2 77337.0000 77284.2158  0.07%     -    0s
     0     0 77285.2179    0    2 77337.0000 77285.2179  0.07%     -    0s
     0     0 77285.2481    0    2 77337.0000 77285.2481  0.07%     -    0s
     0     0 77285.2481    0    2 77337.0000 77285.2481  0.07%     -    0s
     0     0 77285.2481    0    2 77337.0000 77285.2481  0.07%     -    0s
     0     0     cutoff    0      77337.0000 77337.0000   0.0%     -    0s

Cutting planes:
  Implied bound: 58
  Flow cover: 6

Explored 0 nodes (3344 simplex iterations) in 0.82 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 7.733700000000e+04, best bound 7.733700000000e+04, gap 0.0%