
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Thu Nov 21 09:54:03 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo6656.38.log"
Using license file /Users/sara/gurobi.lic
Academic license - for non-commercial use only - expires 2025-05-12

Gurobi Optimizer version 11.0.1 build v11.0.1rc0 (mac64[x86] - Darwin 21.6.0 21G651)
Copyright (c) 2024, Gurobi Optimization, LLC

Read LP format model from file ./lp_problems/grafo6656.38.lp
Reading time = 0.08 seconds
: 43126 rows, 1569 columns, 130411 nonzeros

CPU model: Intel(R) Core(TM) i5-1038NG7 CPU @ 2.00GHz
Thread count: 4 physical cores, 8 logical processors, using up to 8 threads

Optimize a model with 43126 rows, 1569 columns and 130411 nonzeros
Model fingerprint: 0x696bb113
Variable types: 36 continuous, 1533 integer (1533 binary)
Coefficient statistics:
  Matrix range     [5e-01, 5e+01]
  Objective range  [1e+00, 1e+00]
  Bounds range     [1e+00, 1e+00]
  RHS range        [1e+00, 5e+01]
Presolve removed 7327 rows and 22 columns
Presolve time: 0.32s
Presolved: 35799 rows, 1547 columns, 108739 nonzeros
Variable types: 0 continuous, 1547 integer (1511 binary)
Root relaxation presolved: 20223 rows, 17123 columns, 77587 nonzeros


Root relaxation: objective 3.400000e+01, 1847 iterations, 0.56 seconds (0.43 work units)

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

     0     0   34.00000    0  374          -   34.00000      -     -    2s
H    0     0                       4.0000000   34.00000   750%     -    2s
H    0     0                       6.0000000   34.00000   467%     -    2s
H    0     0                       8.0000000   34.00000   325%     -    3s
     0     0   34.00000    0  570    8.00000   34.00000   325%     -    6s
H    0     0                      10.0000000   34.00000   240%     -    6s
     0     0   34.00000    0  543   10.00000   34.00000   240%     -    6s
H    0     0                      11.0000000   33.00000   200%     -   26s
H    0     0                      12.0000000   33.00000   175%     -   26s
     0     0   33.00000    0  483   12.00000   33.00000   175%     -   28s
     0     0   33.00000    0  429   12.00000   33.00000   175%     -   28s
H    0     0                      13.0000000   33.00000   154%     -   43s
     0     0   33.00000    0  413   13.00000   33.00000   154%     -   43s
     0     0   33.00000    0  417   13.00000   33.00000   154%     -   44s
     0     0   33.00000    0  574   13.00000   33.00000   154%     -   50s

Cutting planes:
  Gomory: 1
  Cover: 16
  Clique: 3
  MIR: 93
  StrongCG: 1
  GUB cover: 1
  Zero half: 41
  RLT: 49

Explored 1 nodes (58087 simplex iterations) in 50.05 seconds (39.52 work units)
Thread count was 8 (of 8 available processors)

Solution count 7: 13 12 11 ... 4

Time limit reached
Best objective 1.300000000000e+01, best bound 3.300000000000e+01, gap 153.8462%

Wrote result file './lp_solutions/grafo6656.38.sol'


Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Fri Nov 22 02:49:22 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo6656.38.log"
Using license file /Users/sara/gurobi.lic
Academic license - for non-commercial use only - expires 2025-05-12

Gurobi Optimizer version 11.0.1 build v11.0.1rc0 (mac64[x86] - Darwin 21.6.0 21G651)
Copyright (c) 2024, Gurobi Optimization, LLC

Read LP format model from file ./lp_problems/grafo6656.38.lp
Reading time = 0.07 seconds
: 43126 rows, 1569 columns, 130411 nonzeros

CPU model: Intel(R) Core(TM) i5-1038NG7 CPU @ 2.00GHz
Thread count: 4 physical cores, 8 logical processors, using up to 8 threads

Optimize a model with 43126 rows, 1569 columns and 130411 nonzeros
Model fingerprint: 0x696bb113
Variable types: 36 continuous, 1533 integer (1533 binary)
Coefficient statistics:
  Matrix range     [5e-01, 5e+01]
  Objective range  [1e+00, 1e+00]
  Bounds range     [1e+00, 1e+00]
  RHS range        [1e+00, 5e+01]
Presolve removed 7327 rows and 22 columns
Presolve time: 0.28s
Presolved: 35799 rows, 1547 columns, 108739 nonzeros
Variable types: 0 continuous, 1547 integer (1511 binary)
Root relaxation presolved: 20223 rows, 17123 columns, 77587 nonzeros


Root relaxation: objective 3.400000e+01, 1847 iterations, 0.46 seconds (0.43 work units)

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

     0     0   34.00000    0  374          -   34.00000      -     -    2s
H    0     0                       4.0000000   34.00000   750%     -    2s
H    0     0                       6.0000000   34.00000   467%     -    2s
H    0     0                       8.0000000   34.00000   325%     -    3s
     0     0   34.00000    0  570    8.00000   34.00000   325%     -    5s
H    0     0                      10.0000000   34.00000   240%     -    5s
     0     0   34.00000    0  543   10.00000   34.00000   240%     -    5s
H    0     0                      11.0000000   33.00000   200%     -   22s
H    0     0                      12.0000000   33.00000   175%     -   22s
     0     0   33.00000    0  483   12.00000   33.00000   175%     -   23s
     0     0   33.00000    0  429   12.00000   33.00000   175%     -   24s
H    0     0                      13.0000000   33.00000   154%     -   36s
     0     0   33.00000    0  413   13.00000   33.00000   154%     -   36s
     0     0   33.00000    0  417   13.00000   33.00000   154%     -   36s
     0     0   33.00000    0  574   13.00000   33.00000   154%     -   44s
     0     0   33.00000    0  511   13.00000   33.00000   154%     -   45s
     0     0   33.00000    0  555   13.00000   33.00000   154%     -   50s

Cutting planes:
  Gomory: 2
  Cover: 8
  Clique: 4
  MIR: 90
  StrongCG: 1
  Zero half: 40
  RLT: 50
  Relax-and-lift: 2

Explored 1 nodes (70738 simplex iterations) in 50.05 seconds (47.25 work units)
Thread count was 8 (of 8 available processors)

Solution count 7: 13 12 11 ... 4

Time limit reached
Best objective 1.300000000000e+01, best bound 3.300000000000e+01, gap 153.8462%

Wrote result file './lp_solutions/grafo6656.38.sol'

