Gurobi 5.0.1 (linux64) logging started Sun Nov 18 05:44:21 2012

Optimize a model with 321 rows, 337 columns and 1137 nonzeros
Presolve removed 0 rows and 24 columns
Presolve time: 0.00s
Presolved: 321 rows, 313 columns, 1113 nonzeros
Variable types: 0 continuous, 313 integer (312 binary)
Found heuristic solution: objective 55.0000000

Root relaxation: objective 0.000000e+00, 190 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  125   55.00000    0.00000   100%     -    0s
H    0     0                      41.0000000    0.00000   100%     -    0s
H    0     0                      39.0000000    0.00000   100%     -    0s
H    0     0                      36.0000000    0.00000   100%     -    0s
     0     0    0.12188    0  126   36.00000    0.12188   100%     -    0s
H    0     0                      28.0000000    0.12188   100%     -    0s
     0     0    1.00000    0  127   28.00000    1.00000  96.4%     -    0s
H    0     0                      27.0000000    1.00000  96.3%     -    0s
     0     0    1.00000    0  129   27.00000    1.00000  96.3%     -    0s
     0     0    1.00000    0  120   27.00000    1.00000  96.3%     -    0s
H    0     0                      16.0000000    1.00000  93.8%     -    0s
H    0     0                       8.0000000    1.00000  87.5%     -    0s
H    0     0                       6.0000000    1.00000  83.3%     -    0s
     0     2    1.00000    0  120    6.00000    1.00000  83.3%     -    0s
*   19     4               6       5.0000000    1.00000  80.0%  67.8    0s
*   33     5               9       4.0000000    1.53191  61.7%  45.5    0s

Cutting planes:
  Gomory: 1

Explored 41 nodes (2772 simplex iterations) in 0.13 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%