Gurobi 5.0.1 (linux64) logging started Sun Nov 18 05:35:30 2012

Optimize a model with 285 rows, 307 columns and 1017 nonzeros
Presolve removed 0 rows and 30 columns
Presolve time: 0.00s
Presolved: 285 rows, 277 columns, 987 nonzeros
Variable types: 0 continuous, 277 integer (276 binary)
Found heuristic solution: objective 42.0000000

Root relaxation: objective 0.000000e+00, 184 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  113   42.00000    0.00000   100%     -    0s
H    0     0                      37.0000000    0.00000   100%     -    0s
H    0     0                      33.0000000    0.00000   100%     -    0s
H    0     0                      30.0000000    0.00000   100%     -    0s
     0     0    0.04286    0  115   30.00000    0.04286   100%     -    0s
H    0     0                      24.0000000    0.04286   100%     -    0s
H    0     0                      20.0000000    0.04286   100%     -    0s
     0     0    0.70532    0  119   20.00000    0.70532  96.5%     -    0s
H    0     0                      11.0000000    0.70532  93.6%     -    0s
     0     0    0.70532    0  126   11.00000    0.70532  93.6%     -    0s
     0     0    0.70532    0  126   11.00000    0.70532  93.6%     -    0s
     0     2    0.94482    0  120   11.00000    0.94482  91.4%     -    0s
H   27    27                      10.0000000    1.00000  90.0%  25.1    0s
H   54    27                       6.0000000    1.00000  83.3%  15.0    0s
*   71    25              13       5.0000000    1.00000  80.0%  15.0    0s
*   90     9              12       4.0000000    1.00000  75.0%  16.0    0s

Cutting planes:
  Gomory: 3
  Zero half: 2

Explored 115 nodes (3350 simplex iterations) in 0.15 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%