
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Thu Nov 14 08:14:59 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo5603.38.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/grafo5603.38.lp
Reading time = 0.16 seconds
: 88130 rows, 2113 columns, 266233 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 88130 rows, 2113 columns and 266233 nonzeros
Model fingerprint: 0xe287f51f
Variable types: 47 continuous, 2066 integer (2066 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 22733 rows and 34 columns
Presolve time: 0.89s
Presolved: 65397 rows, 2079 columns, 198496 nonzeros
Variable types: 0 continuous, 2079 integer (2032 binary)
Found heuristic solution: objective 5.0000000
Root relaxation presolved: 2079 rows, 67476 columns, 200575 nonzeros


Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
   16809    4.6808346e+01   0.000000e+00   3.206186e+04      5s
   37609    4.6781470e+01   0.000000e+00   2.087542e+02     10s
   43578    4.7000000e+01   0.000000e+00   0.000000e+00     12s
   43578    4.7000000e+01   0.000000e+00   0.000000e+00     12s

Root relaxation: objective 4.700000e+01, 43578 iterations, 10.54 seconds (6.34 work units)
Total elapsed time = 24.89s (DegenMoves)
Total elapsed time = 26.05s (DegenMoves)

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

     0     0   47.00000    0  623    5.00000   47.00000   840%     -   27s
H    0     0                       7.0000000   47.00000   571%     -   33s
H    0     0                       8.0000000   47.00000   488%     -   33s
     0     0          -    0         8.00000   47.00000   488%     -   50s

Cutting planes:
  Gomory: 28
  Cover: 29
  Clique: 8
  MIR: 224
  StrongCG: 1
  GUB cover: 5
  Zero half: 18
  RLT: 51
  BQP: 1

Explored 1 nodes (63318 simplex iterations) in 50.09 seconds (31.43 work units)
Thread count was 8 (of 8 available processors)

Solution count 3: 8 7 5 

Time limit reached
Best objective 8.000000000000e+00, best bound 4.700000000000e+01, gap 487.5000%

Wrote result file './lp_solutions/grafo5603.38.sol'


Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Thu Nov 21 09:37:16 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo5603.38.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/grafo5603.38.lp
Reading time = 0.16 seconds
: 88130 rows, 2113 columns, 266233 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 88130 rows, 2113 columns and 266233 nonzeros
Model fingerprint: 0xe287f51f
Variable types: 47 continuous, 2066 integer (2066 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 22733 rows and 34 columns
Presolve time: 0.67s
Presolved: 65397 rows, 2079 columns, 198496 nonzeros
Variable types: 0 continuous, 2079 integer (2032 binary)
Found heuristic solution: objective 5.0000000
Root relaxation presolved: 2079 rows, 67476 columns, 200575 nonzeros


Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
   21929    4.6794076e+01   0.000000e+00   1.299879e+04      5s
   43578    4.7000000e+01   0.000000e+00   0.000000e+00     10s
   43578    4.7000000e+01   0.000000e+00   0.000000e+00     10s

Root relaxation: objective 4.700000e+01, 43578 iterations, 8.77 seconds (6.34 work units)
Total elapsed time = 21.58s (DegenMoves)

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

     0     0   47.00000    0  623    5.00000   47.00000   840%     -   23s
H    0     0                       7.0000000   47.00000   571%     -   27s
H    0     0                       8.0000000   47.00000   488%     -   27s
     0     0   47.00000    0  939    8.00000   47.00000   487%     -   48s

Cutting planes:
  Gomory: 2
  Cover: 2
  Clique: 6
  MIR: 91
  Zero half: 8
  RLT: 32

Explored 1 nodes (68001 simplex iterations) in 50.08 seconds (39.25 work units)
Thread count was 8 (of 8 available processors)

Solution count 3: 8 7 5 

Time limit reached
Best objective 8.000000000000e+00, best bound 4.700000000000e+01, gap 487.5000%

Wrote result file './lp_solutions/grafo5603.38.sol'


Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Fri Nov 22 02:32:36 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo5603.38.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/grafo5603.38.lp
Reading time = 0.14 seconds
: 88130 rows, 2113 columns, 266233 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 88130 rows, 2113 columns and 266233 nonzeros
Model fingerprint: 0xe287f51f
Variable types: 47 continuous, 2066 integer (2066 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 22733 rows and 34 columns
Presolve time: 0.60s
Presolved: 65397 rows, 2079 columns, 198496 nonzeros
Variable types: 0 continuous, 2079 integer (2032 binary)
Found heuristic solution: objective 5.0000000
Root relaxation presolved: 2079 rows, 67476 columns, 200575 nonzeros


Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
   25129    4.6789474e+01   0.000000e+00   1.898697e+04      5s
   43578    4.7000000e+01   0.000000e+00   0.000000e+00      8s
   43578    4.7000000e+01   0.000000e+00   0.000000e+00      8s

Root relaxation: objective 4.700000e+01, 43578 iterations, 7.73 seconds (6.34 work units)
Total elapsed time = 18.95s (DegenMoves)
Total elapsed time = 20.50s (DegenMoves)

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

     0     0   47.00000    0  623    5.00000   47.00000   840%     -   20s
H    0     0                       7.0000000   47.00000   571%     -   24s
H    0     0                       8.0000000   47.00000   488%     -   24s
     0     0   47.00000    0  939    8.00000   47.00000   487%     -   42s
     0     0   47.00000    0  905    8.00000   47.00000   487%     -   45s
     0     0          -    0         8.00000   47.00000   487%     -   50s

Cutting planes:
  Gomory: 1
  Cover: 12
  Clique: 9
  MIR: 154
  StrongCG: 1
  Zero half: 44
  RLT: 72
  BQP: 2

Explored 1 nodes (69901 simplex iterations) in 50.05 seconds (43.24 work units)
Thread count was 8 (of 8 available processors)

Solution count 3: 8 7 5 

Time limit reached
Best objective 8.000000000000e+00, best bound 4.700000000000e+01, gap 487.5000%

Wrote result file './lp_solutions/grafo5603.38.sol'

