Gurobi 5.0.1 (linux64) logging started Thu Jan 17 23:40:54 2013

Optimize a model with 1400 rows, 100500 columns and 201000 nonzeros
Presolve removed 100 rows and 100 columns
Presolve time: 0.29s
Presolved: 1600 rows, 100600 columns, 201300 nonzeros
Variable types: 100400 continuous, 200 integer (200 binary)

Root relaxation: objective 7.672886e+05, 6814 iterations, 0.98 seconds

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

     0     0 767288.564    0    6          - 767288.564     -      -    1s
H    0     0                    789248.66473 767288.564  2.78%     -    2s
     0     0 767328.491    0    4 789248.665 767328.491  2.78%     -    3s
     0     0 767328.491    0    4 789248.665 767328.491  2.78%     -    3s
     0     0 767328.491    0    4 789248.665 767328.491  2.78%     -    3s
     0     0 767328.491    0    4 789248.665 767328.491  2.78%     -    4s
     0     0 767328.491    0    4 789248.665 767328.491  2.78%     -    4s
     0     0 767328.491    0    4 789248.665 767328.491  2.78%     -    5s
     0     0 767328.491    0    4 789248.665 767328.491  2.78%     -    5s
     0     2 767336.603    0    4 789248.665 767336.603  2.78%     -    6s
    14    16 768251.825   13    2 789248.665 767799.496  2.72%  73.2   10s
*   15     6              14    768264.46012 767799.496  0.06%  68.7   10s

Cutting planes:
  Flow cover: 6

Explored 22 nodes (9693 simplex iterations) in 11.02 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 7.682644601246e+05, best bound 7.682013911906e+05, gap 0.0082%