
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Fri Nov  1 22:10:41 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo1038.23.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/grafo1038.23.lp
Reading time = 0.03 seconds
: 7612 rows, 455 columns, 22981 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 7612 rows, 455 columns and 22981 nonzeros
Model fingerprint: 0x5ea761fc
Variable types: 16 continuous, 439 integer (439 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]
Found heuristic solution: objective 4.0000000
Presolve removed 1764 rows and 3 columns
Presolve time: 0.12s
Presolved: 5848 rows, 452 columns, 17731 nonzeros
Variable types: 0 continuous, 452 integer (436 binary)

Root relaxation: objective 1.400000e+01, 136 iterations, 0.04 seconds (0.01 work units)

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

     0     0   14.00000    0   61    4.00000   14.00000   250%     -    0s
H    0     0                       5.0000000   14.00000   180%     -    0s
     0     0   14.00000    0   62    5.00000   14.00000   180%     -    0s
H    0     0                       6.0000000   14.00000   133%     -    0s
H    0     0                       7.0000000   14.00000   100%     -    0s
     0     0   14.00000    0   74    7.00000   14.00000   100%     -    1s
     0     0   14.00000    0   74    7.00000   14.00000   100%     -    1s
     0     0   14.00000    0   70    7.00000   14.00000   100%     -    1s
     0     0   13.50000    0   67    7.00000   13.50000  92.9%     -    1s
     0     0   13.00000    0   67    7.00000   13.00000  85.7%     -    1s
H    0     0                       8.0000000   13.00000  62.5%     -    1s
     0     0   13.00000    0   68    8.00000   13.00000  62.5%     -    1s
     0     0   12.83333    0   87    8.00000   12.83333  60.4%     -    2s
     0     0   12.83333    0   71    8.00000   12.83333  60.4%     -    2s
     0     0   12.66667    0   72    8.00000   12.66667  58.3%     -    2s
     0     0   12.66667    0   55    8.00000   12.66667  58.3%     -    2s
     0     2   12.66667    0   55    8.00000   12.66667  58.3%     -    2s
   334   235   10.00000   23   34    8.00000   12.66667  58.3%  32.5    5s
  2466   732   11.00000   17   60    8.00000   11.00000  37.5%  28.3   10s
  3343   519    9.00000   15   48    8.00000   10.50000  31.2%  27.1   15s

Cutting planes:
  Gomory: 7
  Cover: 16
  Clique: 7
  MIR: 124
  Inf proof: 42
  Zero half: 12
  RLT: 36

Explored 4185 nodes (104349 simplex iterations) in 19.21 seconds (4.83 work units)
Thread count was 8 (of 8 available processors)

Solution count 5: 8 7 6 ... 4

Optimal solution found (tolerance 1.00e-04)
Best objective 8.000000000000e+00, best bound 8.000000000000e+00, gap 0.0000%

Wrote result file './lp_solutions/grafo1038.23.sol'


Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Wed Nov 13 01:02:10 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo1038.23.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/grafo1038.23.lp
Reading time = 0.02 seconds
: 7612 rows, 455 columns, 22981 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 7612 rows, 455 columns and 22981 nonzeros
Model fingerprint: 0x5ea761fc
Variable types: 16 continuous, 439 integer (439 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]
Found heuristic solution: objective 4.0000000
Presolve removed 1764 rows and 3 columns
Presolve time: 0.08s
Presolved: 5848 rows, 452 columns, 17731 nonzeros
Variable types: 0 continuous, 452 integer (436 binary)

Root relaxation: objective 1.400000e+01, 136 iterations, 0.02 seconds (0.01 work units)

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

     0     0   14.00000    0   61    4.00000   14.00000   250%     -    0s
H    0     0                       5.0000000   14.00000   180%     -    0s
     0     0   14.00000    0   62    5.00000   14.00000   180%     -    0s
H    0     0                       6.0000000   14.00000   133%     -    0s
H    0     0                       7.0000000   14.00000   100%     -    0s
     0     0   14.00000    0   74    7.00000   14.00000   100%     -    0s
     0     0   14.00000    0   74    7.00000   14.00000   100%     -    1s
     0     0   14.00000    0   70    7.00000   14.00000   100%     -    1s
     0     0   13.50000    0   67    7.00000   13.50000  92.9%     -    1s
     0     0   13.00000    0   67    7.00000   13.00000  85.7%     -    1s
H    0     0                       8.0000000   13.00000  62.5%     -    2s
     0     0   13.00000    0   68    8.00000   13.00000  62.5%     -    2s
     0     0   12.83333    0   87    8.00000   12.83333  60.4%     -    2s
     0     0   12.83333    0   71    8.00000   12.83333  60.4%     -    2s
     0     0   12.66667    0   72    8.00000   12.66667  58.3%     -    3s
     0     0   12.66667    0   55    8.00000   12.66667  58.3%     -    3s
     0     2   12.66667    0   55    8.00000   12.66667  58.3%     -    3s
   191   156     cutoff   33         8.00000   12.66667  58.3%  37.2    5s
  1404   599    9.00000   19   39    8.00000   12.50000  56.2%  30.0   10s
  2974   692    9.00000   23   30    8.00000   10.66667  33.3%  27.6   15s

Cutting planes:
  Gomory: 7
  Cover: 16
  Clique: 7
  MIR: 124
  Inf proof: 42
  Zero half: 12
  RLT: 36

Explored 4185 nodes (104349 simplex iterations) in 17.43 seconds (4.83 work units)
Thread count was 8 (of 8 available processors)

Solution count 5: 8 7 6 ... 4

Optimal solution found (tolerance 1.00e-04)
Best objective 8.000000000000e+00, best bound 8.000000000000e+00, gap 0.0000%

Wrote result file './lp_solutions/grafo1038.23.sol'

