Gurobi 5.0.1 (linux64) logging started Wed Apr 24 00:59:20 2013

Optimize a model with 16480 rows, 16080 columns and 64080 nonzeros
Presolve removed 40 rows and 0 columns
Presolve time: 0.07s
Presolved: 16440 rows, 16080 columns, 64040 nonzeros
Variable types: 16040 continuous, 40 integer (40 binary)

Root relaxation: objective 3.761452e+04, 2209 iterations, 0.43 seconds

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

     0     0 37614.5151    0   35          - 37614.5151     -      -    0s
H    0     0                    45711.000000 37614.5151  17.7%     -    0s
     0     0 42936.1651    0    3 45711.0000 42936.1651  6.07%     -    1s
H    0     0                    43626.600059 42936.1651  1.58%     -    1s
H    0     0                    43131.000000 42936.1651  0.45%     -    1s
H    0     0                    43070.000000 42936.1651  0.31%     -    1s
     0     0 42950.1962    0    3 43070.0000 42950.1962  0.28%     -    1s
H    0     0                    42992.000000 42950.1962  0.10%     -    1s
     0     0 42981.6111    0    2 42992.0000 42981.6111  0.02%     -    1s
H    0     0                    42988.000000 42981.6111  0.01%     -    1s
     0     1 42987.8301    0    1 42988.0000 42987.8301  0.00%     -    1s

Cutting planes:
  Implied bound: 34

Explored 1 nodes (3142 simplex iterations) in 1.72 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 4.298800000000e+04, best bound 4.298783014537e+04, gap 0.0004%