
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Thu Nov 14 08:03:15 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo5536.38.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/grafo5536.38.lp
Reading time = 0.14 seconds
: 63260 rows, 2022 columns, 191499 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 63260 rows, 2022 columns and 191499 nonzeros
Model fingerprint: 0x52cee301
Variable types: 46 continuous, 1976 integer (1976 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 1.0000000
Presolve removed 9826 rows and 36 columns
Presolve time: 0.60s
Presolved: 53434 rows, 1986 columns, 162421 nonzeros
Variable types: 0 continuous, 1986 integer (1940 binary)
Found heuristic solution: objective 8.0000000
Root relaxation presolved: 29818 rows, 25602 columns, 115189 nonzeros


Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
    4589    4.4999807e+01   6.367573e+02   0.000000e+00      5s
    6900    4.5000000e+01   0.000000e+00   0.000000e+00      8s
    6900    4.5000000e+01   0.000000e+00   0.000000e+00      8s

Root relaxation: objective 4.500000e+01, 6900 iterations, 6.81 seconds (4.37 work units)
Total elapsed time = 14.44s (DegenMoves)
Total elapsed time = 16.77s (DegenMoves)

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

     0     0   45.00000    0  626    8.00000   45.00000   462%     -   18s
     0     0   45.00000    0  898    8.00000   45.00000   462%     -   42s
     0     0   45.00000    0  842    8.00000   45.00000   462%     -   45s
     0     0          -    0         8.00000   45.00000   462%     -   50s

Cutting planes:
  Gomory: 5
  Cover: 5
  MIR: 168
  Zero half: 68
  RLT: 81

Explored 1 nodes (29834 simplex iterations) in 50.11 seconds (30.48 work units)
Thread count was 8 (of 8 available processors)

Solution count 2: 8 1 

Time limit reached
Best objective 8.000000000000e+00, best bound 4.500000000000e+01, gap 462.5000%

Wrote result file './lp_solutions/grafo5536.38.sol'


Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Thu Nov 21 09:35:36 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo5536.38.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/grafo5536.38.lp
Reading time = 0.11 seconds
: 63260 rows, 2022 columns, 191499 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 63260 rows, 2022 columns and 191499 nonzeros
Model fingerprint: 0x52cee301
Variable types: 46 continuous, 1976 integer (1976 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 1.0000000
Presolve removed 9826 rows and 36 columns
Presolve time: 0.45s
Presolved: 53434 rows, 1986 columns, 162421 nonzeros
Variable types: 0 continuous, 1986 integer (1940 binary)
Found heuristic solution: objective 8.0000000
Root relaxation presolved: 29818 rows, 25602 columns, 115189 nonzeros


Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
    5829    4.4999805e+01   3.036643e+02   0.000000e+00      5s
    6900    4.5000000e+01   0.000000e+00   0.000000e+00      6s
    6900    4.5000000e+01   0.000000e+00   0.000000e+00      6s

Root relaxation: objective 4.500000e+01, 6900 iterations, 5.30 seconds (4.37 work units)
Total elapsed time = 11.90s (DegenMoves)
Total elapsed time = 15.03s (DegenMoves)

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

     0     0   45.00000    0  626    8.00000   45.00000   462%     -   15s
     0     0   45.00000    0  898    8.00000   45.00000   462%     -   35s
     0     0   45.00000    0  842    8.00000   45.00000   462%     -   37s
     0     0          -    0         8.00000   45.00000   462%     -   50s

Cutting planes:
  Gomory: 5
  Cover: 5
  MIR: 168
  Zero half: 68
  RLT: 81

Explored 1 nodes (35170 simplex iterations) in 50.06 seconds (36.79 work units)
Thread count was 8 (of 8 available processors)

Solution count 2: 8 1 

Time limit reached
Best objective 8.000000000000e+00, best bound 4.500000000000e+01, gap 462.5000%

Wrote result file './lp_solutions/grafo5536.38.sol'


Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Fri Nov 22 02:30:56 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo5536.38.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/grafo5536.38.lp
Reading time = 0.10 seconds
: 63260 rows, 2022 columns, 191499 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 63260 rows, 2022 columns and 191499 nonzeros
Model fingerprint: 0x52cee301
Variable types: 46 continuous, 1976 integer (1976 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 1.0000000
Presolve removed 9826 rows and 36 columns
Presolve time: 0.41s
Presolved: 53434 rows, 1986 columns, 162421 nonzeros
Variable types: 0 continuous, 1986 integer (1940 binary)
Found heuristic solution: objective 8.0000000
Root relaxation presolved: 29818 rows, 25602 columns, 115189 nonzeros


Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
    6649    4.4999805e+01   1.872227e+01   0.000000e+00      5s
    6900    4.5000000e+01   0.000000e+00   0.000000e+00      5s
    6900    4.5000000e+01   0.000000e+00   0.000000e+00      5s

Root relaxation: objective 4.500000e+01, 6900 iterations, 4.70 seconds (4.37 work units)
Total elapsed time = 10.41s (DegenMoves)

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

     0     0   45.00000    0  626    8.00000   45.00000   462%     -   13s
     0     0   45.00000    0  898    8.00000   45.00000   462%     -   30s
     0     0   45.00000    0  842    8.00000   45.00000   462%     -   32s
     0     0   45.00000    0  951    8.00000   45.00000   462%     -   50s

Cutting planes:
  Gomory: 5
  Cover: 5
  MIR: 168
  Zero half: 68
  RLT: 81

Explored 1 nodes (41329 simplex iterations) in 50.05 seconds (43.78 work units)
Thread count was 8 (of 8 available processors)

Solution count 2: 8 1 

Time limit reached
Best objective 8.000000000000e+00, best bound 4.500000000000e+01, gap 462.5000%

Wrote result file './lp_solutions/grafo5536.38.sol'

