
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Wed Nov 13 06:21:41 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo5421.34.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/grafo5421.34.lp
Reading time = 0.07 seconds
: 30522 rows, 1347 columns, 92494 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 30522 rows, 1347 columns and 92494 nonzeros
Model fingerprint: 0xd285831a
Variable types: 35 continuous, 1312 integer (1312 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 3473 rows and 26 columns
Presolve time: 0.37s
Presolved: 27049 rows, 1321 columns, 82309 nonzeros
Variable types: 0 continuous, 1321 integer (1286 binary)
Found heuristic solution: objective 9.0000000
Root relaxation presolved: 14520 rows, 13850 columns, 57251 nonzeros


Root relaxation: objective 3.200000e+01, 1055 iterations, 0.37 seconds (0.19 work units)

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

     0     0   32.00000    0  335    9.00000   32.00000   256%     -    1s
H    0     0                      10.0000000   32.00000   220%     -    1s
     0     0   32.00000    0  435   10.00000   32.00000   220%     -    4s
     0     0   32.00000    0  380   10.00000   32.00000   220%     -    4s
H    0     0                      11.0000000   32.00000   191%     -   11s
     0     0   32.00000    0  404   11.00000   32.00000   191%     -   11s
     0     0   32.00000    0  377   11.00000   32.00000   191%     -   11s
H    0     0                      13.0000000   32.00000   146%     -   13s
     0     0   32.00000    0  381   13.00000   32.00000   146%     -   21s
     0     0   32.00000    0  415   13.00000   32.00000   146%     -   22s
     0     0   31.66667    0  291   13.00000   31.66667   144%     -   35s
     0     0   31.66667    0  282   13.00000   31.66667   144%     -   35s
     0     0   31.66667    0  236   13.00000   31.66667   144%     -   40s
     0     0   31.66667    0  226   13.00000   31.66667   144%     -   40s
     0     0   31.66667    0  348   13.00000   31.66667   144%     -   47s
     0     0   31.66667    0  336   13.00000   31.66667   144%     -   48s
     0     0   31.66667    0  431   13.00000   31.66667   144%     -   50s

Cutting planes:
  Cover: 18
  Clique: 1
  MIR: 131
  StrongCG: 1
  GUB cover: 1
  Zero half: 16
  RLT: 46
  Relax-and-lift: 1

Explored 1 nodes (60128 simplex iterations) in 50.05 seconds (26.72 work units)
Thread count was 8 (of 8 available processors)

Solution count 5: 13 11 10 ... 3

Time limit reached
Best objective 1.300000000000e+01, best bound 3.100000000000e+01, gap 138.4615%

Wrote result file './lp_solutions/grafo5421.34.sol'


Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Mon Nov 18 03:51:40 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo5421.34.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/grafo5421.34.lp
Reading time = 0.08 seconds
: 30522 rows, 1347 columns, 92494 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 30522 rows, 1347 columns and 92494 nonzeros
Model fingerprint: 0xd285831a
Variable types: 35 continuous, 1312 integer (1312 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 3473 rows and 26 columns
Presolve time: 0.26s
Presolved: 27049 rows, 1321 columns, 82309 nonzeros
Variable types: 0 continuous, 1321 integer (1286 binary)
Found heuristic solution: objective 9.0000000
Root relaxation presolved: 14520 rows, 13850 columns, 57251 nonzeros


Root relaxation: objective 3.200000e+01, 1055 iterations, 0.27 seconds (0.19 work units)

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

     0     0   32.00000    0  335    9.00000   32.00000   256%     -    1s
H    0     0                      10.0000000   32.00000   220%     -    1s
     0     0   32.00000    0  435   10.00000   32.00000   220%     -    3s
     0     0   32.00000    0  380   10.00000   32.00000   220%     -    3s
H    0     0                      11.0000000   32.00000   191%     -   10s
     0     0   32.00000    0  404   11.00000   32.00000   191%     -   10s
     0     0   32.00000    0  377   11.00000   32.00000   191%     -   10s
H    0     0                      13.0000000   32.00000   146%     -   11s
     0     0   32.00000    0  381   13.00000   32.00000   146%     -   19s
     0     0   32.00000    0  415   13.00000   32.00000   146%     -   20s
     0     0   31.66667    0  291   13.00000   31.66667   144%     -   31s
     0     0   31.66667    0  282   13.00000   31.66667   144%     -   31s
     0     0   31.66667    0  236   13.00000   31.66667   144%     -   36s
     0     0   31.66667    0  226   13.00000   31.66667   144%     -   37s
     0     0   31.66667    0  348   13.00000   31.66667   144%     -   43s
     0     0   31.66667    0  336   13.00000   31.66667   144%     -   44s
H    0     0                      14.0000000   31.50000   125%     -   48s
H    0     0                      15.0000000   31.50000   110%     -   48s
     0     0   31.50000    0  293   15.00000   31.50000   110%     -   48s
     0     0   31.50000    0  319   15.00000   31.50000   110%     -   49s
     0     0          -    0        15.00000   31.50000   110%     -   50s

Cutting planes:
  Cover: 22
  MIR: 130
  StrongCG: 1
  GUB cover: 1
  Inf proof: 1
  Zero half: 24
  RLT: 54

Explored 1 nodes (67112 simplex iterations) in 50.04 seconds (29.18 work units)
Thread count was 8 (of 8 available processors)

Solution count 7: 15 14 13 ... 3

Time limit reached
Best objective 1.500000000000e+01, best bound 3.100000000000e+01, gap 106.6667%

Wrote result file './lp_solutions/grafo5421.34.sol'


Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Wed Nov 20 04:54:47 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo5421.34.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/grafo5421.34.lp
Reading time = 0.06 seconds
: 30522 rows, 1347 columns, 92494 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 30522 rows, 1347 columns and 92494 nonzeros
Model fingerprint: 0xd285831a
Variable types: 35 continuous, 1312 integer (1312 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 3473 rows and 26 columns
Presolve time: 0.23s
Presolved: 27049 rows, 1321 columns, 82309 nonzeros
Variable types: 0 continuous, 1321 integer (1286 binary)
Found heuristic solution: objective 9.0000000
Root relaxation presolved: 14520 rows, 13850 columns, 57251 nonzeros


Root relaxation: objective 3.200000e+01, 1055 iterations, 0.25 seconds (0.19 work units)

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

     0     0   32.00000    0  335    9.00000   32.00000   256%     -    1s
H    0     0                      10.0000000   32.00000   220%     -    1s
     0     0   32.00000    0  435   10.00000   32.00000   220%     -    3s
     0     0   32.00000    0  380   10.00000   32.00000   220%     -    3s
H    0     0                      11.0000000   32.00000   191%     -    8s
     0     0   32.00000    0  404   11.00000   32.00000   191%     -    8s
     0     0   32.00000    0  377   11.00000   32.00000   191%     -    8s
H    0     0                      13.0000000   32.00000   146%     -    9s
     0     0   32.00000    0  381   13.00000   32.00000   146%     -   16s
     0     0   32.00000    0  415   13.00000   32.00000   146%     -   16s
     0     0   31.66667    0  291   13.00000   31.66667   144%     -   26s
     0     0   31.66667    0  282   13.00000   31.66667   144%     -   26s
     0     0   31.66667    0  236   13.00000   31.66667   144%     -   31s
     0     0   31.66667    0  226   13.00000   31.66667   144%     -   31s
     0     0   31.66667    0  348   13.00000   31.66667   144%     -   36s
     0     0   31.66667    0  336   13.00000   31.66667   144%     -   36s
H    0     0                      14.0000000   31.50000   125%     -   40s
H    0     0                      15.0000000   31.50000   110%     -   40s
     0     0   31.50000    0  293   15.00000   31.50000   110%     -   40s
     0     0   31.50000    0  319   15.00000   31.50000   110%     -   40s
     0     0   31.50000    0  383   15.00000   31.50000   110%     -   43s
     0     0   31.50000    0  274   15.00000   31.50000   110%     -   45s
     0     2   31.50000    0  274   15.00000   31.50000   110%     -   47s
    27    32   31.50000    7  243   15.00000   31.50000   110%   332   50s

Cutting planes:
  Gomory: 1
  Cover: 7
  MIR: 138
  StrongCG: 2
  GUB cover: 2
  Inf proof: 1
  Zero half: 10
  RLT: 48

Explored 31 nodes (83238 simplex iterations) in 50.06 seconds (35.85 work units)
Thread count was 8 (of 8 available processors)

Solution count 7: 15 14 13 ... 3

Time limit reached
Best objective 1.500000000000e+01, best bound 3.100000000000e+01, gap 106.6667%

Wrote result file './lp_solutions/grafo5421.34.sol'

