Gurobi 5.0.1 (linux64) logging started Fri Jan 18 01:41:58 2013

Optimize a model with 520 rows, 5180 columns and 16440 nonzeros
Presolve removed 20 rows and 20 columns
Presolve time: 0.02s
Presolved: 500 rows, 5160 columns, 15420 nonzeros
Variable types: 5040 continuous, 120 integer (120 binary)

Root relaxation: objective 3.573401e+04, 483 iterations, 0.01 seconds

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

     0     0 35734.0139    0    9          - 35734.0139     -      -    0s
     0     0 35740.5215    0    9          - 35740.5215     -      -    0s
     0     0 35740.6103    0    9          - 35740.6103     -      -    0s
     0     0 35741.7107    0    9          - 35741.7107     -      -    0s
     0     0 35741.9730    0    9          - 35741.9730     -      -    0s
     0     0 35741.9933    0    9          - 35741.9933     -      -    0s
     0     0 35742.2201    0    9          - 35742.2201     -      -    0s
     0     0 35742.2214    0    9          - 35742.2214     -      -    0s
     0     0 35742.3512    0    9          - 35742.3512     -      -    0s
     0     0 35742.3520    0    9          - 35742.3520     -      -    0s
     0     0 35742.3520    0    9          - 35742.3520     -      -    0s
     0     0 35742.3520    0    9          - 35742.3520     -      -    0s
H    0     0                    36237.695722 35742.3520  1.37%     -    0s
     0     2 35748.7989    0    9 36237.6957 35748.7989  1.35%     -    0s
*   16    10              15    36178.473074 36008.5521  0.47%  17.2    0s
*   30     7              14    36175.683193 36170.6070  0.01%  15.9    0s

Cutting planes:
  Flow cover: 11

Explored 38 nodes (1513 simplex iterations) in 0.32 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 3.617568319306e+04, best bound 3.617343977492e+04, gap 0.0062%