Gurobi 5.0.1 (linux64) logging started Sun Nov 18 04:13:45 2012

Optimize a model with 423 rows, 297 columns and 1352 nonzeros
Presolve time: 0.00s
Presolved: 423 rows, 297 columns, 1352 nonzeros
Variable types: 0 continuous, 297 integer (297 binary)
Found heuristic solution: objective 100.0000000

Root relaxation: objective 0.000000e+00, 125 iterations, 0.00 seconds

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

     0     0    0.00000    0   85  100.00000    0.00000   100%     -    0s
H    0     0                      90.0000000    0.00000   100%     -    0s
H    0     0                      89.0000000    0.00000   100%     -    0s
     0     0    0.49398    0   88   89.00000    0.49398  99.4%     -    0s
H    0     0                      82.0000000    0.49398  99.4%     -    0s
     0     0    0.50403    0   89   82.00000    0.50403  99.4%     -    0s
H    0     0                      79.0000000    0.50403  99.4%     -    0s
     0     0    0.52830    0   89   79.00000    0.52830  99.3%     -    0s
H    0     0                      78.0000000    0.52830  99.3%     -    0s
     0     0    0.56604    0   89   78.00000    0.56604  99.3%     -    0s
     0     0    0.59630    0   89   78.00000    0.59630  99.2%     -    0s
     0     0    0.60906    0   91   78.00000    0.60906  99.2%     -    0s
H    0     0                      76.0000000    0.60906  99.2%     -    0s
     0     0    0.64850    0  111   76.00000    0.64850  99.1%     -    0s
H    0     0                      68.0000000    0.64850  99.0%     -    0s
     0     2    0.64859    0  111   68.00000    0.64859  99.0%     -    0s
H   54    54                      50.0000000    4.00683  92.0%  25.8    0s
*   62    54              31      49.0000000    4.00683  91.8%  23.2    0s
*  105    80              26      47.0000000    4.04986  91.4%  23.2    0s
*  205   132              24      43.0000000    7.40183  82.8%  26.4    0s
  4914  1166   41.86567   26  139   43.00000   28.59091  33.5%  19.3    5s
 10735  1668   39.64615   26  136   43.00000   33.00000  23.3%  17.6   10s
 17670  1380   38.43750   25  133   43.00000   35.93750  16.4%  17.0   15s

Cutting planes:
  Gomory: 1
  Zero half: 1
  Mod-K: 2

Explored 23313 nodes (385775 simplex iterations) in 18.51 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 4.300000000000e+01, best bound 4.300000000000e+01, gap 0.0%