Gurobi 5.0.1 (linux64) logging started Thu Jan 17 23:58:45 2013

Optimize a model with 2000 rows, 102100 columns and 206700 nonzeros
Presolve removed 100 rows and 700 columns
Presolve time: 0.23s
Presolved: 1900 rows, 101400 columns, 205700 nonzeros
Variable types: 101100 continuous, 300 integer (300 binary)

Root relaxation: objective 7.672886e+05, 5588 iterations, 0.33 seconds

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

     0     0 767288.564    0    3          - 767288.564     -      -    0s
H    0     0                    926712.22000 767288.564  17.2%     -    0s
     0     0 767328.491    0    2 926712.220 767328.491  17.2%     -    1s
     0     0 767328.491    0    2 926712.220 767328.491  17.2%     -    1s
     0     0 767328.491    0    2 926712.220 767328.491  17.2%     -    1s
     0     0 767328.491    0    2 926712.220 767328.491  17.2%     -    2s
     0     0 767328.491    0    2 926712.220 767328.491  17.2%     -    2s
     0     0 767328.491    0    2 926712.220 767328.491  17.2%     -    2s
     0     0 767328.491    0    2 926712.220 767328.491  17.2%     -    2s
     0     2 767335.647    0    2 926712.220 767335.647  17.2%     -    3s
    17    19 768305.609   15    1 926712.220 767857.706  17.1%  72.2    5s
*   18     5              16    768324.01239 767857.706  0.06%  68.7    5s

Cutting planes:
  Flow cover: 6

Explored 36 nodes (9311 simplex iterations) in 6.19 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 7.683240123860e+05, best bound 7.683240123860e+05, gap 0.0%