
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Thu Nov 14 08:45:10 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo5774.42.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/grafo5774.42.lp
Reading time = 0.12 seconds
: 62489 rows, 2103 columns, 189094 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 62489 rows, 2103 columns and 189094 nonzeros
Model fingerprint: 0x9c27baa0
Variable types: 44 continuous, 2059 integer (2059 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 7904 rows and 28 columns
Presolve time: 0.57s
Presolved: 54585 rows, 2075 columns, 165823 nonzeros
Variable types: 0 continuous, 2075 integer (2031 binary)
Root relaxation presolved: 29861 rows, 26799 columns, 116375 nonzeros


Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
    4631    4.0999830e+01   1.319352e+04   0.000000e+00      5s
    5709    4.1000000e+01   0.000000e+00   0.000000e+00      6s
    5709    4.1000000e+01   0.000000e+00   0.000000e+00      6s

Root relaxation: objective 4.100000e+01, 5709 iterations, 5.33 seconds (3.12 work units)
Total elapsed time = 11.15s (DegenMoves)
Total elapsed time = 15.07s (DegenMoves)

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

     0     0   41.00000    0  484          -   41.00000      -     -   15s
H    0     0                       9.0000000   41.00000   356%     -   15s
H    0     0                      12.0000000   41.00000   242%     -   15s
     0     0   41.00000    0  761   12.00000   41.00000   242%     -   29s
     0     0   41.00000    0  742   12.00000   41.00000   242%     -   31s
     0     0   41.00000    0  762   12.00000   41.00000   242%     -   50s

Cutting planes:
  Gomory: 4
  Lift-and-project: 33
  Cover: 4
  MIR: 119
  StrongCG: 1
  GUB cover: 2
  Zero half: 76
  RLT: 41

Explored 1 nodes (35056 simplex iterations) in 50.09 seconds (29.45 work units)
Thread count was 8 (of 8 available processors)

Solution count 2: 12 9 

Time limit reached
Best objective 1.200000000000e+01, best bound 4.100000000000e+01, gap 241.6667%

Wrote result file './lp_solutions/grafo5774.42.sol'


Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Fri Nov 22 05:26:26 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo5774.42.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/grafo5774.42.lp
Reading time = 0.10 seconds
: 62489 rows, 2103 columns, 189094 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 62489 rows, 2103 columns and 189094 nonzeros
Model fingerprint: 0x9c27baa0
Variable types: 44 continuous, 2059 integer (2059 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 7904 rows and 28 columns
Presolve time: 0.41s
Presolved: 54585 rows, 2075 columns, 165823 nonzeros
Variable types: 0 continuous, 2075 integer (2031 binary)
Root relaxation presolved: 29861 rows, 26799 columns, 116375 nonzeros


Root relaxation: objective 4.100000e+01, 5709 iterations, 3.47 seconds (3.12 work units)
Total elapsed time = 7.79s (DegenMoves)
Total elapsed time = 10.35s (DegenMoves)

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

     0     0   41.00000    0  484          -   41.00000      -     -   10s
H    0     0                       9.0000000   41.00000   356%     -   10s
H    0     0                      12.0000000   41.00000   242%     -   10s
     0     0   41.00000    0  761   12.00000   41.00000   242%     -   20s
     0     0   41.00000    0  742   12.00000   41.00000   242%     -   21s
     0     0   41.00000    0  524   12.00000   41.00000   242%     -   37s
     0     0   41.00000    0  482   12.00000   41.00000   242%     -   37s
H    0     0                      14.0000000   41.00000   193%     -   39s
     0     0   41.00000    0  691   14.00000   41.00000   193%     -   50s

Cutting planes:
  Gomory: 2
  Lift-and-project: 2
  Cover: 27
  Clique: 3
  MIR: 157
  StrongCG: 1
  GUB cover: 5
  Zero half: 72
  RLT: 67
  Relax-and-lift: 1

Explored 1 nodes (50329 simplex iterations) in 50.06 seconds (43.01 work units)
Thread count was 8 (of 8 available processors)

Solution count 3: 14 12 9 

Time limit reached
Best objective 1.400000000000e+01, best bound 4.100000000000e+01, gap 192.8571%

Wrote result file './lp_solutions/grafo5774.42.sol'

