
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Mon Nov 18 21:51:44 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo2391.38.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/grafo2391.38.lp
Reading time = 0.10 seconds
: 81298 rows, 1768 columns, 245267 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 81298 rows, 1768 columns and 245267 nonzeros
Model fingerprint: 0x10687630
Variable types: 40 continuous, 1728 integer (1728 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 26956 rows and 24 columns
Presolve time: 0.47s
Presolved: 54342 rows, 1744 columns, 164752 nonzeros
Variable types: 0 continuous, 1744 integer (1704 binary)
Root relaxation presolved: 1741 rows, 56083 columns, 166496 nonzeros


Root relaxation: objective 3.300000e+01, 1370 iterations, 0.22 seconds (0.28 work units)

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

     0     0   33.00000    0  274          -   33.00000      -     -    1s
H    0     0                       9.0000000   33.00000   267%     -    1s
H    0     0                      10.0000000   33.00000   230%     -    1s
H    0     0                      12.0000000   33.00000   175%     -    2s
     0     0   33.00000    0  513   12.00000   33.00000   175%     -    4s
     0     0   33.00000    0  490   12.00000   33.00000   175%     -    5s
H    0     0                      14.0000000   33.00000   136%     -    6s
H    0     0                      15.0000000   33.00000   120%     -   20s
     0     0   33.00000    0  344   15.00000   33.00000   120%     -   20s
     0     0   33.00000    0  354   15.00000   33.00000   120%     -   21s
H    0     0                      16.0000000   33.00000   106%     -   31s
     0     0   33.00000    0  346   16.00000   33.00000   106%     -   31s
     0     0   33.00000    0  304   16.00000   33.00000   106%     -   31s
H    0     0                      17.0000000   33.00000  94.1%     -   39s
H    0     0                      18.0000000   33.00000  83.3%     -   39s
     0     0   33.00000    0  414   18.00000   33.00000  83.3%     -   39s
     0     0   33.00000    0  361   18.00000   33.00000  83.3%     -   40s
     0     0   33.00000    0  299   18.00000   33.00000  83.3%     -   46s
     0     0   33.00000    0  281   18.00000   33.00000  83.3%     -   47s
     0     0   33.00000    0  312   18.00000   33.00000  83.3%     -   50s

Cutting planes:
  Gomory: 1
  Cover: 20
  Clique: 6
  MIR: 80
  GUB cover: 1
  Zero half: 43
  RLT: 38
  BQP: 1

Explored 1 nodes (57471 simplex iterations) in 50.07 seconds (50.60 work units)
Thread count was 8 (of 8 available processors)

Solution count 8: 18 17 16 ... 9

Time limit reached
Best objective 1.800000000000e+01, best bound 3.300000000000e+01, gap 83.3333%

Wrote result file './lp_solutions/grafo2391.38.sol'


Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Mon Nov 25 02:35:34 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo2391.38.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/grafo2391.38.lp
Reading time = 0.13 seconds
: 81298 rows, 1768 columns, 245267 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 81298 rows, 1768 columns and 245267 nonzeros
Model fingerprint: 0x10687630
Variable types: 40 continuous, 1728 integer (1728 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 26956 rows and 24 columns
Presolve time: 0.58s
Presolved: 54342 rows, 1744 columns, 164752 nonzeros
Variable types: 0 continuous, 1744 integer (1704 binary)
Root relaxation presolved: 1741 rows, 56083 columns, 166496 nonzeros


Root relaxation: objective 3.300000e+01, 1370 iterations, 0.29 seconds (0.28 work units)

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

     0     0   33.00000    0  274          -   33.00000      -     -    2s
H    0     0                       9.0000000   33.00000   267%     -    2s
H    0     0                      10.0000000   33.00000   230%     -    2s
H    0     0                      12.0000000   33.00000   175%     -    3s
     0     0   33.00000    0  513   12.00000   33.00000   175%     -    6s
     0     0   33.00000    0  490   12.00000   33.00000   175%     -    6s
H    0     0                      14.0000000   33.00000   136%     -    8s
H    0     0                      15.0000000   33.00000   120%     -   24s
     0     0   33.00000    0  344   15.00000   33.00000   120%     -   24s
     0     0   33.00000    0  354   15.00000   33.00000   120%     -   26s
H    0     0                      16.0000000   33.00000   106%     -   38s
     0     0   33.00000    0  346   16.00000   33.00000   106%     -   38s
     0     0   33.00000    0  304   16.00000   33.00000   106%     -   38s
H    0     0                      17.0000000   33.00000  94.1%     -   49s
H    0     0                      18.0000000   33.00000  83.3%     -   49s
     0     0   33.00000    0  414   18.00000   33.00000  83.3%     -   49s
     0     0   33.00000    0  361   18.00000   33.00000  83.3%     -   49s

Cutting planes:
  Gomory: 3
  Cover: 28
  Clique: 8
  MIR: 76
  StrongCG: 1
  GUB cover: 1
  Zero half: 1
  RLT: 16

Explored 1 nodes (44606 simplex iterations) in 50.09 seconds (41.27 work units)
Thread count was 8 (of 8 available processors)

Solution count 8: 18 17 16 ... 9

Time limit reached
Best objective 1.800000000000e+01, best bound 3.300000000000e+01, gap 83.3333%

Wrote result file './lp_solutions/grafo2391.38.sol'

