Optimize a model with 144 rows, 10296 columns and 20592 nonzeros
Presolve time: 0.02s
Presolved: 144 rows, 10296 columns, 20592 nonzeros
Variable types: 0 continuous, 10296 integer (10296 binary)

Root relaxation: objective 3.277600e+04, 172 iterations, 0.00 seconds

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

     0     0 32776.0000    0   36          - 32776.0000     -      -    0s
     0     0 32792.0000    0   36          - 32792.0000     -      -    0s
     0     0 33063.3333    0   84          - 33063.3333     -      -    0s
     0     0 33250.0000    0   68          - 33250.0000     -      -    0s
     0     0 33266.0000    0   72          - 33266.0000     -      -    0s
     0     0 33304.5000    0   88          - 33304.5000     -      -    0s
     0     0 33329.0000    0   84          - 33329.0000     -      -    0s
     0     0 33358.6667    0   80          - 33358.6667     -      -    0s
     0     0 33361.6667    0   92          - 33361.6667     -      -    0s
     0     0 33361.6667    0   92          - 33361.6667     -      -    0s
     0     2 33377.0833    0   92          - 33377.0833     -      -    0s
*  392   388             302    80451.000000 52693.6667  34.5%   6.1    1s
*  447   216              39    59451.000000 52715.3333  11.3%   6.4    1s
H  600   293                    59064.000000 52759.3333  10.7%   7.4    2s
H  612   285                    58607.000000 58499.1432  0.18%   8.2    3s
H  615   272                    58554.000000 58530.0606  0.04%   8.2    3s
*  616   259              28    58537.000000 58537.0000   0.0%   8.2    3s

Cutting planes:
  Gomory: 13
  Zero half: 18

Explored 617 nodes (5479 simplex iterations) in 3.81 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 5.853700000000e+04, best bound 5.853700000000e+04, gap 0.0%

Gurobi 5.0.1 (linux64) logging started Sun Nov 25 02:44:55 2012