Gurobi 5.0.1 (linux64) logging started Sun Nov 18 05:52:22 2012

Optimize a model with 325 rows, 345 columns and 1155 nonzeros
Presolve removed 0 rows and 25 columns
Presolve time: 0.00s
Presolved: 325 rows, 320 columns, 1130 nonzeros
Variable types: 0 continuous, 320 integer (319 binary)
Found heuristic solution: objective 66.0000000

Root relaxation: objective 0.000000e+00, 217 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  133   66.00000    0.00000   100%     -    0s
H    0     0                      42.0000000    0.00000   100%     -    0s
H    0     0                      41.0000000    0.00000   100%     -    0s
H    0     0                      36.0000000    0.00000   100%     -    0s
     0     0    0.13059    0  135   36.00000    0.13059   100%     -    0s
H    0     0                      30.0000000    0.13059   100%     -    0s
H    0     0                      25.0000000    0.13059  99.5%     -    0s
     0     0    0.75490    0  140   25.00000    0.75490  97.0%     -    0s
H    0     0                      10.0000000    0.75490  92.5%     -    0s
     0     0    0.75491    0  142   10.00000    0.75491  92.5%     -    0s
     0     0    0.75491    0  142   10.00000    0.75491  92.5%     -    0s
     0     2    0.75718    0  140   10.00000    0.75718  92.4%     -    0s
H   27    27                       9.0000000    1.00000  88.9%  21.6    0s
H   54    28                       5.0000000    1.00000  80.0%  14.5    0s
*  133    18              22       4.0000000    1.80488  54.9%  23.0    0s

Cutting planes:
  Gomory: 3
  Zero half: 9
  Mod-K: 1

Explored 158 nodes (4179 simplex iterations) in 0.20 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%