
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Thu Nov 14 07:22:10 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo5252.38.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/grafo5252.38.lp
Reading time = 0.08 seconds
: 42325 rows, 1701 columns, 128280 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 42325 rows, 1701 columns and 128280 nonzeros
Model fingerprint: 0x505c71a9
Variable types: 40 continuous, 1661 integer (1661 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 3456 rows and 26 columns
Presolve time: 0.35s
Presolved: 38869 rows, 1675 columns, 118177 nonzeros
Variable types: 0 continuous, 1675 integer (1635 binary)
Found heuristic solution: objective 8.0000000
Root relaxation presolved: 20553 rows, 19991 columns, 81545 nonzeros


Root relaxation: objective 3.300000e+01, 1599 iterations, 0.50 seconds (0.29 work units)

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

     0     0   33.00000    0  341    8.00000   33.00000   312%     -    2s
H    0     0                      12.0000000   33.00000   175%     -    2s
H    0     0                      13.0000000   33.00000   154%     -    2s
     0     0   33.00000    0  480   13.00000   33.00000   154%     -    6s
     0     0   33.00000    0  434   13.00000   33.00000   154%     -    7s
H    0     0                      14.0000000   33.00000   136%     -   21s
H    0     0                      15.0000000   32.83333   119%     -   21s
     0     0   32.83333    0  363   15.00000   32.83333   119%     -   21s
     0     0   32.83333    0  360   15.00000   32.83333   119%     -   21s
H    0     0                      16.0000000   32.83333   105%     -   31s
     0     0   32.66667    0  332   16.00000   32.66667   104%     -   31s
     0     0   32.66667    0  343   16.00000   32.66667   104%     -   31s
     0     0   32.66667    0  341   16.00000   32.66667   104%     -   43s
     0     0   32.66667    0  314   16.00000   32.66667   104%     -   43s
     0     0   32.66667    0  372   16.00000   32.66667   104%     -   47s
     0     0   32.66667    0  347   16.00000   32.66667   104%     -   48s
     0     0   32.66667    0  393   16.00000   32.66667   104%     -   50s

Cutting planes:
  Lift-and-project: 1
  Cover: 23
  Clique: 2
  MIR: 106
  StrongCG: 4
  GUB cover: 3
  Zero half: 44
  RLT: 36
  BQP: 1

Explored 1 nodes (54760 simplex iterations) in 50.07 seconds (28.36 work units)
Thread count was 8 (of 8 available processors)

Solution count 6: 16 15 14 ... 8

Time limit reached
Best objective 1.600000000000e+01, best bound 3.200000000000e+01, gap 100.0000%

Wrote result file './lp_solutions/grafo5252.38.sol'


Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Thu Nov 21 09:32:15 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo5252.38.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/grafo5252.38.lp
Reading time = 0.07 seconds
: 42325 rows, 1701 columns, 128280 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 42325 rows, 1701 columns and 128280 nonzeros
Model fingerprint: 0x505c71a9
Variable types: 40 continuous, 1661 integer (1661 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 3456 rows and 26 columns
Presolve time: 0.28s
Presolved: 38869 rows, 1675 columns, 118177 nonzeros
Variable types: 0 continuous, 1675 integer (1635 binary)
Found heuristic solution: objective 8.0000000
Root relaxation presolved: 20553 rows, 19991 columns, 81545 nonzeros


Root relaxation: objective 3.300000e+01, 1599 iterations, 0.35 seconds (0.29 work units)

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

     0     0   33.00000    0  341    8.00000   33.00000   312%     -    1s
H    0     0                      12.0000000   33.00000   175%     -    1s
H    0     0                      13.0000000   33.00000   154%     -    1s
     0     0   33.00000    0  480   13.00000   33.00000   154%     -    4s
     0     0   33.00000    0  434   13.00000   33.00000   154%     -    4s
H    0     0                      14.0000000   33.00000   136%     -   14s
H    0     0                      15.0000000   32.83333   119%     -   14s
     0     0   32.83333    0  363   15.00000   32.83333   119%     -   14s
     0     0   32.83333    0  360   15.00000   32.83333   119%     -   14s
H    0     0                      16.0000000   32.83333   105%     -   21s
     0     0   32.66667    0  332   16.00000   32.66667   104%     -   21s
     0     0   32.66667    0  343   16.00000   32.66667   104%     -   21s
     0     0   32.66667    0  341   16.00000   32.66667   104%     -   30s
     0     0   32.66667    0  314   16.00000   32.66667   104%     -   31s
     0     0   32.66667    0  372   16.00000   32.66667   104%     -   34s
     0     0   32.66667    0  347   16.00000   32.66667   104%     -   34s
     0     0   32.66667    0  213   16.00000   32.66667   104%     -   37s
     0     0   32.66667    0  310   16.00000   32.66667   104%     -   37s
H    0     0                      17.0000000   32.66667  92.2%     -   45s
     0     0   32.66667    0  275   17.00000   32.66667  92.2%     -   45s
     0     0   32.66667    0  275   17.00000   32.66667  92.2%     -   46s

Cutting planes:
  Gomory: 1
  Cover: 2
  MIR: 8
  Zero half: 3
  RLT: 19

Explored 1 nodes (71399 simplex iterations) in 50.05 seconds (36.91 work units)
Thread count was 8 (of 8 available processors)

Solution count 7: 17 16 15 ... 8

Time limit reached
Best objective 1.700000000000e+01, best bound 3.200000000000e+01, gap 88.2353%

Wrote result file './lp_solutions/grafo5252.38.sol'


Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Fri Nov 22 02:27:35 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo5252.38.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/grafo5252.38.lp
Reading time = 0.07 seconds
: 42325 rows, 1701 columns, 128280 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 42325 rows, 1701 columns and 128280 nonzeros
Model fingerprint: 0x505c71a9
Variable types: 40 continuous, 1661 integer (1661 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 3456 rows and 26 columns
Presolve time: 0.28s
Presolved: 38869 rows, 1675 columns, 118177 nonzeros
Variable types: 0 continuous, 1675 integer (1635 binary)
Found heuristic solution: objective 8.0000000
Root relaxation presolved: 20553 rows, 19991 columns, 81545 nonzeros


Root relaxation: objective 3.300000e+01, 1599 iterations, 0.34 seconds (0.29 work units)

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

     0     0   33.00000    0  341    8.00000   33.00000   312%     -    1s
H    0     0                      12.0000000   33.00000   175%     -    1s
H    0     0                      13.0000000   33.00000   154%     -    1s
     0     0   33.00000    0  480   13.00000   33.00000   154%     -    4s
     0     0   33.00000    0  434   13.00000   33.00000   154%     -    4s
H    0     0                      14.0000000   33.00000   136%     -   14s
H    0     0                      15.0000000   32.83333   119%     -   14s
     0     0   32.83333    0  363   15.00000   32.83333   119%     -   14s
     0     0   32.83333    0  360   15.00000   32.83333   119%     -   14s
H    0     0                      16.0000000   32.83333   105%     -   20s
     0     0   32.66667    0  332   16.00000   32.66667   104%     -   20s
     0     0   32.66667    0  343   16.00000   32.66667   104%     -   21s
     0     0   32.66667    0  341   16.00000   32.66667   104%     -   29s
     0     0   32.66667    0  314   16.00000   32.66667   104%     -   29s
     0     0   32.66667    0  372   16.00000   32.66667   104%     -   32s
     0     0   32.66667    0  347   16.00000   32.66667   104%     -   32s
     0     0   32.66667    0  213   16.00000   32.66667   104%     -   35s
     0     0   32.66667    0  310   16.00000   32.66667   104%     -   35s
H    0     0                      17.0000000   32.66667  92.2%     -   40s
     0     0   32.66667    0  275   17.00000   32.66667  92.2%     -   40s
     0     0   32.66667    0  275   17.00000   32.66667  92.2%     -   41s
     0     2   32.66667    0  275   17.00000   32.66667  92.2%     -   46s
   157   162   28.83333   31  245   17.00000   32.66667  92.2%  72.4   50s

Cutting planes:
  Gomory: 1
  Cover: 5
  Clique: 2
  MIR: 55
  Inf proof: 2
  Zero half: 11
  RLT: 41
  PSD: 1

Explored 161 nodes (82918 simplex iterations) in 50.04 seconds (44.35 work units)
Thread count was 8 (of 8 available processors)

Solution count 7: 17 16 15 ... 8

Time limit reached
Best objective 1.700000000000e+01, best bound 3.200000000000e+01, gap 88.2353%

Wrote result file './lp_solutions/grafo5252.38.sol'

