Gurobi 5.0.1 (linux64) logging started Fri Jan 18 00:49:02 2013

Optimize a model with 2200 rows, 101700 columns and 207600 nonzeros
Presolve removed 100 rows and 100 columns
Presolve time: 0.44s
Presolved: 2100 rows, 101600 columns, 206500 nonzeros
Variable types: 101200 continuous, 400 integer (400 binary)

Root relaxation: objective 9.188392e+05, 7041 iterations, 0.82 seconds

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

     0     0 918839.221    0   12          - 918839.221     -      -    1s
H    0     0                    1111274.5456 918839.221  17.3%     -    1s
H    0     0                    1010072.4967 918839.221  9.03%     -    2s
     0     0 918946.984    0   12 1010072.50 918946.984  9.02%     -    2s
     0     0 918993.094    0   12 1010072.50 918993.094  9.02%     -    3s
     0     0 918998.540    0    9 1010072.50 918998.540  9.02%     -    3s
     0     0 918998.989    0    6 1010072.50 918998.989  9.02%     -    4s
     0     0 918998.989    0    6 1010072.50 918998.989  9.02%     -    4s
     0     0 919000.326    0    6 1010072.50 919000.326  9.02%     -    4s
     0     0 919000.326    0    6 1010072.50 919000.326  9.02%     -    5s
     0     0 919000.326    0    6 1010072.50 919000.326  9.02%     -    8s
H    0     0                    929767.93154 919000.326  1.16%     -    9s
     0     2 919005.822    0    6 929767.932 919005.822  1.16%     -   10s
    15    17 919347.442   13    3 929767.932 919053.032  1.15%  76.9   15s
H   54    18                    919941.52890 919053.032  0.10%  23.9   20s
*  102    10              18    919369.63105 919070.538  0.03%  21.2   23s

Cutting planes:
  Flow cover: 15

Explored 105 nodes (11192 simplex iterations) in 23.75 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 9.193696310472e+05, best bound 9.192785424093e+05, gap 0.0099%