
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Fri Nov  1 21:17:07 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo10030.38.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/grafo10030.38.lp
Reading time = 0.41 seconds
: 109355 rows, 2243 columns, 330148 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 109355 rows, 2243 columns and 330148 nonzeros
Model fingerprint: 0x4ecd2e43
Variable types: 49 continuous, 2194 integer (2194 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 3.0000000
Presolve removed 31123 rows and 36 columns
Presolve time: 1.81s
Presolved: 78232 rows, 2207 columns, 237262 nonzeros
Variable types: 0 continuous, 2207 integer (2158 binary)
Found heuristic solution: objective 13.0000000
Root relaxation presolved: 2204 rows, 80436 columns, 239469 nonzeros


Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
    8741    4.8959447e+01   0.000000e+00   1.766603e+05      5s
   19570    4.2925430e+01   0.000000e+00   2.865069e+04     10s
   30337    4.2918006e+01   0.000000e+00   2.688062e+03     15s
   42934    4.2916489e+01   0.000000e+00   2.222623e+02     20s
   49302    4.3000000e+01   0.000000e+00   0.000000e+00     22s
   49302    4.3000000e+01   0.000000e+00   0.000000e+00     22s
   49302    4.3000000e+01   0.000000e+00   0.000000e+00     22s

Root relaxation: objective 4.300000e+01, 49302 iterations, 20.22 seconds (8.46 work units)
Total elapsed time = 48.18s (DegenMoves)

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

     0     0   43.00000    0  830   13.00000   43.00000   231%     -   50s

Explored 1 nodes (64116 simplex iterations) in 50.02 seconds (28.15 work units)
Thread count was 8 (of 8 available processors)

Solution count 2: 13 3 

Time limit reached
Best objective 1.300000000000e+01, best bound 4.300000000000e+01, gap 230.7692%

Wrote result file './lp_solutions/grafo10030.38.sol'


Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Mon Nov 18 21:36:40 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo10030.38.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/grafo10030.38.lp
Reading time = 0.13 seconds
: 109355 rows, 2243 columns, 330148 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 109355 rows, 2243 columns and 330148 nonzeros
Model fingerprint: 0x4ecd2e43
Variable types: 49 continuous, 2194 integer (2194 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 3.0000000
Presolve removed 31123 rows and 36 columns
Presolve time: 0.66s
Presolved: 78232 rows, 2207 columns, 237262 nonzeros
Variable types: 0 continuous, 2207 integer (2158 binary)
Found heuristic solution: objective 13.0000000
Root relaxation presolved: 2204 rows, 80436 columns, 239469 nonzeros


Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
   29567    4.2918191e+01   0.000000e+00   3.735837e+03      5s
   49302    4.3000000e+01   0.000000e+00   0.000000e+00      8s
   49302    4.3000000e+01   0.000000e+00   0.000000e+00      8s
   49302    4.3000000e+01   0.000000e+00   0.000000e+00      8s

Root relaxation: objective 4.300000e+01, 49302 iterations, 7.67 seconds (8.46 work units)
Total elapsed time = 22.36s (DegenMoves)
Total elapsed time = 25.46s (DegenMoves)

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

     0     0   43.00000    0  509   13.00000   43.00000   231%     -   25s
H    0     0                      14.0000000   43.00000   207%     -   25s
     0     0   43.00000    0  848   14.00000   43.00000   207%     -   36s
     0     0   43.00000    0  813   14.00000   43.00000   207%     -   38s
     0     0   43.00000    0  810   14.00000   43.00000   207%     -   50s

Cutting planes:
  Gomory: 1
  Lift-and-project: 28
  Cover: 14
  Clique: 4
  MIR: 107
  GUB cover: 2
  Zero half: 21
  RLT: 50
  BQP: 3

Explored 1 nodes (84231 simplex iterations) in 50.03 seconds (61.55 work units)
Thread count was 8 (of 8 available processors)

Solution count 3: 14 13 3 

Time limit reached
Best objective 1.400000000000e+01, best bound 4.300000000000e+01, gap 207.1429%

Wrote result file './lp_solutions/grafo10030.38.sol'


Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Mon Nov 25 02:20:28 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo10030.38.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/grafo10030.38.lp
Reading time = 0.19 seconds
: 109355 rows, 2243 columns, 330148 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 109355 rows, 2243 columns and 330148 nonzeros
Model fingerprint: 0x4ecd2e43
Variable types: 49 continuous, 2194 integer (2194 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 3.0000000
Presolve removed 31123 rows and 36 columns
Presolve time: 0.86s
Presolved: 78232 rows, 2207 columns, 237262 nonzeros
Variable types: 0 continuous, 2207 integer (2158 binary)
Found heuristic solution: objective 13.0000000
Root relaxation presolved: 2204 rows, 80436 columns, 239469 nonzeros


Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
   21875    4.2923125e+01   0.000000e+00   7.231808e+04      5s
   42539    4.2916499e+01   0.000000e+00   7.405263e+01     10s
   49302    4.3000000e+01   0.000000e+00   0.000000e+00     12s
   49302    4.3000000e+01   0.000000e+00   0.000000e+00     12s
   49302    4.3000000e+01   0.000000e+00   0.000000e+00     12s

Root relaxation: objective 4.300000e+01, 49302 iterations, 10.67 seconds (8.46 work units)
Total elapsed time = 30.16s (DegenMoves)

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

     0     0   43.00000    0  509   13.00000   43.00000   231%     -   34s
H    0     0                      14.0000000   43.00000   207%     -   34s
     0     0   43.00000    0  848   14.00000   43.00000   207%     -   49s

Cutting planes:
  Gomory: 1
  Cover: 2
  Clique: 4
  MIR: 43
  GUB cover: 1
  Zero half: 7
  RLT: 12
  BQP: 2

Explored 1 nodes (75657 simplex iterations) in 50.03 seconds (46.95 work units)
Thread count was 8 (of 8 available processors)

Solution count 3: 14 13 3 

Time limit reached
Best objective 1.400000000000e+01, best bound 4.300000000000e+01, gap 207.1429%

Wrote result file './lp_solutions/grafo10030.38.sol'

