
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Fri Nov  1 22:48:01 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo10564.37.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/grafo10564.37.lp
Reading time = 0.32 seconds
: 54025 rows, 1651 columns, 163292 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 54025 rows, 1651 columns and 163292 nonzeros
Model fingerprint: 0x60761f51
Variable types: 36 continuous, 1615 integer (1615 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 17963 rows and 57 columns
Presolve time: 0.42s
Presolved: 36062 rows, 1594 columns, 109728 nonzeros
Variable types: 0 continuous, 1594 integer (1558 binary)
Root relaxation presolved: 21152 rows, 16504 columns, 79908 nonzeros


Root relaxation: objective 3.300000e+01, 1107 iterations, 0.34 seconds (0.22 work units)

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

     0     0   33.00000    0  332          -   33.00000      -     -    1s
H    0     0                      15.0000000   33.00000   120%     -    1s
H    0     0                      17.0000000   33.00000  94.1%     -    2s
     0     0   33.00000    0  474   17.00000   33.00000  94.1%     -    4s
     0     0   33.00000    0  396   17.00000   33.00000  94.1%     -    4s
H    0     0                      18.0000000   33.00000  83.3%     -   17s
     0     0   32.00000    0  368   18.00000   32.00000  77.8%     -   17s
     0     0   32.00000    0  373   18.00000   32.00000  77.8%     -   24s
     0     0   32.00000    0  414   18.00000   32.00000  77.8%     -  139s

Cutting planes:
  Cover: 30
  Clique: 14
  MIR: 101
  Zero half: 37
  RLT: 50
  BQP: 1

Explored 1 nodes (16414 simplex iterations) in 139.39 seconds (8.92 work units)
Thread count was 8 (of 8 available processors)

Solution count 3: 18 17 15 

Time limit reached
Best objective 1.800000000000e+01, best bound 3.200000000000e+01, gap 77.7778%

Wrote result file './lp_solutions/grafo10564.37.sol'


Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Mon Nov 18 20:38:50 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo10564.37.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/grafo10564.37.lp
Reading time = 0.09 seconds
: 54025 rows, 1651 columns, 163292 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 54025 rows, 1651 columns and 163292 nonzeros
Model fingerprint: 0x60761f51
Variable types: 36 continuous, 1615 integer (1615 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 17963 rows and 57 columns
Presolve time: 0.29s
Presolved: 36062 rows, 1594 columns, 109728 nonzeros
Variable types: 0 continuous, 1594 integer (1558 binary)
Root relaxation presolved: 21152 rows, 16504 columns, 79908 nonzeros


Root relaxation: objective 3.300000e+01, 1107 iterations, 0.28 seconds (0.22 work units)

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

     0     0   33.00000    0  332          -   33.00000      -     -    1s
H    0     0                      15.0000000   33.00000   120%     -    1s
H    0     0                      17.0000000   33.00000  94.1%     -    1s
     0     0   33.00000    0  474   17.00000   33.00000  94.1%     -    3s
     0     0   33.00000    0  396   17.00000   33.00000  94.1%     -    3s
H    0     0                      18.0000000   33.00000  83.3%     -    8s
     0     0   32.00000    0  368   18.00000   32.00000  77.8%     -    8s
     0     0   32.00000    0  373   18.00000   32.00000  77.8%     -    9s
     0     0   32.00000    0  337   18.00000   32.00000  77.8%     -   19s
     0     0   32.00000    0  309   18.00000   32.00000  77.8%     -   19s
     0     0   32.00000    0  314   18.00000   32.00000  77.8%     -   23s
     0     0   32.00000    0  318   18.00000   32.00000  77.8%     -   23s
H    0     0                      19.0000000   31.93333  68.1%     -   30s
H    0     0                      20.0000000   31.93333  59.7%     -   30s
     0     0   31.93333    0  373   20.00000   31.93333  59.7%     -   30s
     0     0   31.93333    0  363   20.00000   31.93333  59.7%     -   30s
     0     0   31.66667    0  337   20.00000   31.66667  58.3%     -   35s
     0     0   31.66667    0  302   20.00000   31.66667  58.3%     -   35s
H    0     0                      21.0000000   31.66667  50.8%     -   38s
     0     2   31.66667    0  302   21.00000   31.66667  50.8%     -   38s
    31    36   31.66667    8  244   21.00000   31.66667  50.8%   271   40s
   197   202   27.00000   39  183   21.00000   31.66667  50.8%  90.0   45s
   529   532   25.00000  108  165   21.00000   31.66667  50.8%   115   50s

Cutting planes:
  Gomory: 1
  Cover: 12
  Clique: 15
  MIR: 83
  StrongCG: 4
  Inf proof: 3
  Zero half: 16
  RLT: 52
  BQP: 1
  PSD: 1

Explored 534 nodes (116370 simplex iterations) in 50.05 seconds (46.64 work units)
Thread count was 8 (of 8 available processors)

Solution count 6: 21 20 19 ... 15

Time limit reached
Best objective 2.100000000000e+01, best bound 3.100000000000e+01, gap 47.6190%

Wrote result file './lp_solutions/grafo10564.37.sol'

