
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Thu Nov 14 06:52:49 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo4013.38.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/grafo4013.38.lp
Reading time = 0.15 seconds
: 69916 rows, 2066 columns, 211534 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 69916 rows, 2066 columns and 211534 nonzeros
Model fingerprint: 0xff0f9582
Variable types: 46 continuous, 2020 integer (2020 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 14011 rows and 39 columns
Presolve time: 0.78s
Presolved: 55905 rows, 2027 columns, 169849 nonzeros
Variable types: 0 continuous, 2027 integer (1981 binary)
Root relaxation presolved: 2027 rows, 57932 columns, 171876 nonzeros


Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
   19453    4.7949880e+01   0.000000e+00   2.050595e+03      5s
   27737    4.8000000e+01   0.000000e+00   0.000000e+00      7s
   27737    4.8000000e+01   0.000000e+00   0.000000e+00      7s

Root relaxation: objective 4.800000e+01, 27737 iterations, 6.19 seconds (3.49 work units)
Total elapsed time = 16.62s (DegenMoves)
Total elapsed time = 20.88s (DegenMoves)
Total elapsed time = 28.77s (DegenMoves)

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

     0     0   48.00000    0  507          -   48.00000      -     -   29s
H    0     0                      12.0000000   48.00000   300%     -   29s
H    0     0                      14.0000000   48.00000   243%     -   29s
     0     0   48.00000    0  857   14.00000   48.00000   243%     -   48s
     0     0          -    0        14.00000   48.00000   243%     -   50s

Cutting planes:
  Gomory: 1
  Cover: 1
  Clique: 6
  MIR: 49
  Zero half: 5
  RLT: 43

Explored 1 nodes (58334 simplex iterations) in 50.09 seconds (37.50 work units)
Thread count was 8 (of 8 available processors)

Solution count 2: 14 12 

Time limit reached
Best objective 1.400000000000e+01, best bound 4.800000000000e+01, gap 242.8571%

Wrote result file './lp_solutions/grafo4013.38.sol'


Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Thu Nov 21 09:28:53 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo4013.38.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/grafo4013.38.lp
Reading time = 0.11 seconds
: 69916 rows, 2066 columns, 211534 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 69916 rows, 2066 columns and 211534 nonzeros
Model fingerprint: 0xff0f9582
Variable types: 46 continuous, 2020 integer (2020 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 14011 rows and 39 columns
Presolve time: 0.48s
Presolved: 55905 rows, 2027 columns, 169849 nonzeros
Variable types: 0 continuous, 2027 integer (1981 binary)
Root relaxation presolved: 2027 rows, 57932 columns, 171876 nonzeros


Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
   27737    4.8000000e+01   0.000000e+00   0.000000e+00      5s
   27737    4.8000000e+01   0.000000e+00   0.000000e+00      5s

Root relaxation: objective 4.800000e+01, 27737 iterations, 4.42 seconds (3.49 work units)
Total elapsed time = 11.81s (DegenMoves)
Total elapsed time = 17.64s (DegenMoves)
Total elapsed time = 21.03s (DegenMoves)

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

     0     0   48.00000    0  507          -   48.00000      -     -   21s
H    0     0                      12.0000000   48.00000   300%     -   21s
H    0     0                      14.0000000   48.00000   243%     -   21s
     0     0   48.00000    0  857   14.00000   48.00000   243%     -   35s
     0     0   48.00000    0  829   14.00000   48.00000   243%     -   37s
     0     0   48.00000    0  836   14.00000   48.00000   243%     -   50s

Cutting planes:
  Gomory: 2
  Cover: 3
  Clique: 7
  MIR: 108
  StrongCG: 1
  GUB cover: 1
  Zero half: 77
  RLT: 89

Explored 1 nodes (67330 simplex iterations) in 50.08 seconds (48.14 work units)
Thread count was 8 (of 8 available processors)

Solution count 2: 14 12 

Time limit reached
Best objective 1.400000000000e+01, best bound 4.800000000000e+01, gap 242.8571%

Wrote result file './lp_solutions/grafo4013.38.sol'


Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Fri Nov 22 02:24:14 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo4013.38.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/grafo4013.38.lp
Reading time = 0.11 seconds
: 69916 rows, 2066 columns, 211534 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 69916 rows, 2066 columns and 211534 nonzeros
Model fingerprint: 0xff0f9582
Variable types: 46 continuous, 2020 integer (2020 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 14011 rows and 39 columns
Presolve time: 0.46s
Presolved: 55905 rows, 2027 columns, 169849 nonzeros
Variable types: 0 continuous, 2027 integer (1981 binary)
Root relaxation presolved: 2027 rows, 57932 columns, 171876 nonzeros


Root relaxation: objective 4.800000e+01, 27737 iterations, 4.27 seconds (3.49 work units)
Total elapsed time = 11.33s (DegenMoves)
Total elapsed time = 16.91s (DegenMoves)
Total elapsed time = 20.17s (DegenMoves)

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

     0     0   48.00000    0  507          -   48.00000      -     -   20s
H    0     0                      12.0000000   48.00000   300%     -   20s
H    0     0                      14.0000000   48.00000   243%     -   20s
     0     0   48.00000    0  857   14.00000   48.00000   243%     -   34s
     0     0   48.00000    0  829   14.00000   48.00000   243%     -   35s
     0     0   48.00000    0  836   14.00000   48.00000   243%     -   50s

Cutting planes:
  Gomory: 2
  Cover: 3
  Clique: 7
  MIR: 108
  StrongCG: 1
  GUB cover: 1
  Zero half: 77
  RLT: 89

Explored 1 nodes (68683 simplex iterations) in 50.07 seconds (49.41 work units)
Thread count was 8 (of 8 available processors)

Solution count 2: 14 12 

Time limit reached
Best objective 1.400000000000e+01, best bound 4.800000000000e+01, gap 242.8571%

Wrote result file './lp_solutions/grafo4013.38.sol'

