Gurobi 5.0.1 (linux64) logging started Sun Nov 18 05:50:55 2012

Optimize a model with 317 rows, 338 columns and 1128 nonzeros
Presolve removed 0 rows and 32 columns
Presolve time: 0.00s
Presolved: 317 rows, 306 columns, 1096 nonzeros
Variable types: 0 continuous, 306 integer (305 binary)
Found heuristic solution: objective 48.0000000

Root relaxation: objective 0.000000e+00, 230 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  135   48.00000    0.00000   100%     -    0s
H    0     0                      42.0000000    0.00000   100%     -    0s
H    0     0                      37.0000000    0.00000   100%     -    0s
H    0     0                      32.0000000    0.00000   100%     -    0s
     0     0    0.15609    0  137   32.00000    0.15609   100%     -    0s
H    0     0                      30.0000000    0.15609  99.5%     -    0s
H    0     0                      27.0000000    0.15609  99.4%     -    0s
     0     0    0.77841    0  139   27.00000    0.77841  97.1%     -    0s
H    0     0                      12.0000000    0.77841  93.5%     -    0s
     0     0    0.77841    0  139   12.00000    0.77841  93.5%     -    0s
H    0     0                      11.0000000    0.77841  92.9%     -    0s
     0     2    0.78524    0  139   11.00000    0.78524  92.9%     -    0s
H   27     9                       5.0000000    1.00000  80.0%  36.1    0s
*   37     9               7       4.0000000    1.00000  75.0%  36.2    0s

Cutting planes:
  Gomory: 4
  Zero half: 1

Explored 59 nodes (2958 simplex iterations) in 0.16 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 4.000000000000e+00, best bound 4.000000000000e+00, gap 0.0%