Gurobi 5.0.1 (linux64) logging started Tue Nov 20 12:32:11 2012

Optimize a model with 310 rows, 105 columns and 620 nonzeros
Presolve removed 86 rows and 7 columns
Presolve time: 0.00s
Presolved: 224 rows, 98 columns, 488 nonzeros
Variable types: 0 continuous, 98 integer (98 binary)
Found heuristic solution: objective 38.0000000

Root relaxation: objective 4.666667e+01, 138 iterations, 0.00 seconds

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

     0     0   46.66667    0   88   38.00000   46.66667  22.8%     -    0s
H    0     0                      43.0000000   46.66667  8.53%     -    0s
     0     0   45.95312    0   89   43.00000   45.95312  6.87%     -    0s
     0     0   45.85000    0   92   43.00000   45.85000  6.63%     -    0s
     0     0   45.29368    0   95   43.00000   45.29368  5.33%     -    0s
     0     0   45.23529    0   95   43.00000   45.23529  5.20%     -    0s
     0     0   45.19022    0   95   43.00000   45.19022  5.09%     -    0s
     0     0   44.87719    0   96   43.00000   44.87719  4.37%     -    0s
     0     0   44.71429    0   96   43.00000   44.71429  3.99%     -    0s
     0     0   44.50000    0   86   43.00000   44.50000  3.49%     -    0s
     0     0   44.22222    0   87   43.00000   44.22222  2.84%     -    0s
     0     0   44.22034    0   91   43.00000   44.22034  2.84%     -    0s
     0     0   44.22034    0   91   43.00000   44.22034  2.84%     -    0s
     0     2   44.16129    0   91   43.00000   44.16129  2.70%     -    0s

Cutting planes:
  Zero half: 36

Explored 3 nodes (577 simplex iterations) in 0.05 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%