
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Fri Nov  1 22:25:57 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo1049.21.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/grafo1049.21.lp
Reading time = 0.02 seconds
: 4679 rows, 378 columns, 14130 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 4679 rows, 378 columns and 14130 nonzeros
Model fingerprint: 0x81c408d9
Variable types: 15 continuous, 363 integer (363 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 734 rows and 15 columns
Presolve time: 0.10s
Presolved: 3945 rows, 363 columns, 12039 nonzeros
Variable types: 0 continuous, 363 integer (348 binary)
Found heuristic solution: objective 3.0000000

Root relaxation: objective 9.000000e+00, 121 iterations, 0.03 seconds (0.01 work units)

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

     0     0    9.00000    0   40    3.00000    9.00000   200%     -    0s
H    0     0                       4.0000000    9.00000   125%     -    0s
     0     0    9.00000    0   90    4.00000    9.00000   125%     -    0s
     0     0    9.00000    0   92    4.00000    9.00000   125%     -    0s
H    0     0                       5.0000000    8.50000  70.0%     -    0s
     0     0    8.50000    0   33    5.00000    8.50000  70.0%     -    0s
     0     0    8.33333    0   32    5.00000    8.33333  66.7%     -    0s
     0     0    8.00000    0   46    5.00000    8.00000  60.0%     -    0s
     0     0    8.00000    0   43    5.00000    8.00000  60.0%     -    1s
     0     0    8.00000    0   33    5.00000    8.00000  60.0%     -    1s
     0     0    7.66667    0   30    5.00000    7.66667  53.3%     -    1s
     0     0    7.50000    0   24    5.00000    7.50000  50.0%     -    1s
H    0     0                       6.0000000    7.50000  25.0%     -    1s
     0     0    7.50000    0   30    6.00000    7.50000  25.0%     -    1s
     0     0    7.00000    0   39    6.00000    7.00000  16.7%     -    1s
     0     0    7.00000    0   85    6.00000    7.00000  16.7%     -    1s
     0     0    7.00000    0   42    6.00000    7.00000  16.7%     -    1s
     0     0    7.00000    0   64    6.00000    7.00000  16.7%     -    1s
     0     0    7.00000    0   32    6.00000    7.00000  16.7%     -    2s
     0     0    7.00000    0   32    6.00000    7.00000  16.7%     -    2s
     0     2    7.00000    0   32    6.00000    7.00000  16.7%     -    2s

Cutting planes:
  Cover: 5
  MIR: 60
  GUB cover: 2
  Inf proof: 8
  Zero half: 3
  RLT: 17

Explored 383 nodes (14831 simplex iterations) in 3.90 seconds (1.10 work units)
Thread count was 8 (of 8 available processors)

Solution count 5: 6 5 4 ... 1

Optimal solution found (tolerance 1.00e-04)
Best objective 6.000000000000e+00, best bound 6.000000000000e+00, gap 0.0000%

Wrote result file './lp_solutions/grafo1049.21.sol'


Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Wed Nov 13 01:03:21 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo1049.21.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/grafo1049.21.lp
Reading time = 0.01 seconds
: 4679 rows, 378 columns, 14130 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 4679 rows, 378 columns and 14130 nonzeros
Model fingerprint: 0x81c408d9
Variable types: 15 continuous, 363 integer (363 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 734 rows and 15 columns
Presolve time: 0.06s
Presolved: 3945 rows, 363 columns, 12039 nonzeros
Variable types: 0 continuous, 363 integer (348 binary)
Found heuristic solution: objective 3.0000000

Root relaxation: objective 9.000000e+00, 121 iterations, 0.01 seconds (0.01 work units)

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

     0     0    9.00000    0   40    3.00000    9.00000   200%     -    0s
H    0     0                       4.0000000    9.00000   125%     -    0s
     0     0    9.00000    0   90    4.00000    9.00000   125%     -    0s
     0     0    9.00000    0   92    4.00000    9.00000   125%     -    0s
H    0     0                       5.0000000    8.50000  70.0%     -    0s
     0     0    8.50000    0   33    5.00000    8.50000  70.0%     -    0s
     0     0    8.33333    0   32    5.00000    8.33333  66.7%     -    0s
     0     0    8.00000    0   46    5.00000    8.00000  60.0%     -    0s
     0     0    8.00000    0   43    5.00000    8.00000  60.0%     -    1s
     0     0    8.00000    0   33    5.00000    8.00000  60.0%     -    1s
     0     0    7.66667    0   30    5.00000    7.66667  53.3%     -    1s
     0     0    7.50000    0   24    5.00000    7.50000  50.0%     -    1s
H    0     0                       6.0000000    7.50000  25.0%     -    1s
     0     0    7.50000    0   30    6.00000    7.50000  25.0%     -    1s
     0     0    7.00000    0   39    6.00000    7.00000  16.7%     -    2s
     0     0    7.00000    0   85    6.00000    7.00000  16.7%     -    2s
     0     0    7.00000    0   42    6.00000    7.00000  16.7%     -    2s
     0     0    7.00000    0   64    6.00000    7.00000  16.7%     -    2s
     0     0    7.00000    0   32    6.00000    7.00000  16.7%     -    2s
     0     0    7.00000    0   32    6.00000    7.00000  16.7%     -    2s
     0     2    7.00000    0   32    6.00000    7.00000  16.7%     -    3s

Cutting planes:
  Cover: 5
  MIR: 60
  GUB cover: 2
  Inf proof: 8
  Zero half: 3
  RLT: 17

Explored 383 nodes (14831 simplex iterations) in 4.61 seconds (1.10 work units)
Thread count was 8 (of 8 available processors)

Solution count 5: 6 5 4 ... 1

Optimal solution found (tolerance 1.00e-04)
Best objective 6.000000000000e+00, best bound 6.000000000000e+00, gap 0.0000%

Wrote result file './lp_solutions/grafo1049.21.sol'

