
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Thu Nov 14 05:44:00 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo3149.41.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/grafo3149.41.lp
Reading time = 0.10 seconds
: 52931 rows, 1919 columns, 160244 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 52931 rows, 1919 columns and 160244 nonzeros
Model fingerprint: 0xdbeec3d7
Variable types: 42 continuous, 1877 integer (1877 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 5147 rows and 28 columns
Presolve time: 0.44s
Presolved: 47784 rows, 1891 columns, 145080 nonzeros
Variable types: 0 continuous, 1891 integer (1849 binary)
Root relaxation presolved: 25644 rows, 24031 columns, 100800 nonzeros


Root relaxation: objective 3.700000e+01, 2519 iterations, 1.70 seconds (0.85 work units)

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

     0     0   37.00000    0  412          -   37.00000      -     -    4s
H    0     0                       8.0000000   37.00000   362%     -    7s
     0     0   37.00000    0  652    8.00000   37.00000   362%     -   12s
H    0     0                       9.0000000   37.00000   311%     -   12s
H    0     0                      10.0000000   37.00000   270%     -   12s
H    0     0                      12.0000000   37.00000   208%     -   12s
     0     0   37.00000    0  637   12.00000   37.00000   208%     -   13s
H    0     0                      13.0000000   37.00000   185%     -   35s
     0     0   37.00000    0  453   13.00000   37.00000   185%     -   35s
     0     0   37.00000    0  406   13.00000   37.00000   185%     -   36s
     0     0   37.00000    0  562   13.00000   37.00000   185%     -   50s

Cutting planes:
  Cover: 26
  Clique: 2
  MIR: 139
  GUB cover: 2
  Zero half: 45
  RLT: 44
  BQP: 1

Explored 1 nodes (42611 simplex iterations) in 50.08 seconds (32.51 work units)
Thread count was 8 (of 8 available processors)

Solution count 5: 13 12 10 ... 8

Time limit reached
Best objective 1.300000000000e+01, best bound 3.700000000000e+01, gap 184.6154%

Wrote result file './lp_solutions/grafo3149.41.sol'


Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Fri Nov 22 04:50:23 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo3149.41.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/grafo3149.41.lp
Reading time = 0.09 seconds
: 52931 rows, 1919 columns, 160244 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 52931 rows, 1919 columns and 160244 nonzeros
Model fingerprint: 0xdbeec3d7
Variable types: 42 continuous, 1877 integer (1877 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 5147 rows and 28 columns
Presolve time: 0.34s
Presolved: 47784 rows, 1891 columns, 145080 nonzeros
Variable types: 0 continuous, 1891 integer (1849 binary)
Root relaxation presolved: 25644 rows, 24031 columns, 100800 nonzeros


Root relaxation: objective 3.700000e+01, 2519 iterations, 0.96 seconds (0.85 work units)

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

     0     0   37.00000    0  412          -   37.00000      -     -    3s
H    0     0                       8.0000000   37.00000   362%     -    4s
     0     0   37.00000    0  652    8.00000   37.00000   362%     -    7s
H    0     0                       9.0000000   37.00000   311%     -    8s
H    0     0                      10.0000000   37.00000   270%     -    8s
H    0     0                      12.0000000   37.00000   208%     -    8s
     0     0   37.00000    0  637   12.00000   37.00000   208%     -    8s
H    0     0                      13.0000000   37.00000   185%     -   24s
     0     0   37.00000    0  453   13.00000   37.00000   185%     -   24s
     0     0   37.00000    0  406   13.00000   37.00000   185%     -   24s
H    0     0                      14.0000000   37.00000   164%     -   38s
H    0     0                      15.0000000   37.00000   147%     -   38s
H    0     0                      16.0000000   37.00000   131%     -   38s
     0     0   37.00000    0  365   16.00000   37.00000   131%     -   38s
     0     0   37.00000    0  477   16.00000   37.00000   131%     -   39s
     0     0   37.00000    0  380   16.00000   37.00000   131%     -   45s
     0     0   37.00000    0  375   16.00000   37.00000   131%     -   45s
     0     0   37.00000    0  430   16.00000   37.00000   131%     -   50s

Cutting planes:
  Cover: 28
  Clique: 5
  MIR: 68
  StrongCG: 1
  GUB cover: 5
  Zero half: 34
  RLT: 36

Explored 1 nodes (66289 simplex iterations) in 50.07 seconds (48.45 work units)
Thread count was 8 (of 8 available processors)

Solution count 8: 16 15 14 ... 8

Time limit reached
Best objective 1.600000000000e+01, best bound 3.700000000000e+01, gap 131.2500%

Wrote result file './lp_solutions/grafo3149.41.sol'

