
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Thu Nov 14 05:20:31 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo2843.43.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/grafo2843.43.lp
Reading time = 0.14 seconds
: 56945 rows, 1996 columns, 172301 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 56945 rows, 1996 columns and 172301 nonzeros
Model fingerprint: 0x20f1002b
Variable types: 42 continuous, 1954 integer (1954 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 5479 rows and 22 columns
Presolve time: 0.57s
Presolved: 51466 rows, 1974 columns, 156114 nonzeros
Variable types: 0 continuous, 1974 integer (1932 binary)
Root relaxation presolved: 27645 rows, 25795 columns, 108472 nonzeros


Root relaxation: objective 3.600000e+01, 2768 iterations, 1.55 seconds (0.79 work units)
Total elapsed time = 5.18s (DegenMoves)

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

     0     0   36.00000    0  525          -   36.00000      -     -    5s
H    0     0                       7.0000000   36.00000   414%     -    8s
     0     0   36.00000    0  568    7.00000   36.00000   414%     -   13s
H    0     0                       8.0000000   36.00000   350%     -   14s
     0     0   36.00000    0  599    8.00000   36.00000   350%     -   15s
H    0     0                      12.0000000   36.00000   200%     -   32s
H    0     0                      13.0000000   36.00000   177%     -   32s
H    0     0                      16.0000000   36.00000   125%     -   32s
     0     0   36.00000    0  293   16.00000   36.00000   125%     -   32s
H    0     0                      17.0000000   36.00000   112%     -   32s
     0     0   36.00000    0  299   17.00000   36.00000   112%     -   32s
H    0     0                      18.0000000   36.00000   100%     -   40s
     0     0   36.00000    0  254   18.00000   36.00000   100%     -   40s
     0     0   36.00000    0  259   18.00000   36.00000   100%     -   41s
H    0     0                      19.0000000   36.00000  89.5%     -   46s
     0     0   36.00000    0  220   19.00000   36.00000  89.5%     -   46s
     0     0   36.00000    0  205   19.00000   36.00000  89.5%     -   47s
     0     0   36.00000    0  423   19.00000   36.00000  89.5%     -   50s

Cutting planes:
  Lift-and-project: 1
  Cover: 17
  Clique: 2
  MIR: 118
  StrongCG: 3
  GUB cover: 1
  Zero half: 26
  RLT: 49
  BQP: 2
  PSD: 1

Explored 1 nodes (44419 simplex iterations) in 50.09 seconds (28.30 work units)
Thread count was 8 (of 8 available processors)

Solution count 8: 19 18 17 ... 7

Time limit reached
Best objective 1.900000000000e+01, best bound 3.600000000000e+01, gap 89.4737%

Wrote result file './lp_solutions/grafo2843.43.sol'


Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Fri Nov 22 05:47:23 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo2843.43.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/grafo2843.43.lp
Reading time = 0.09 seconds
: 56945 rows, 1996 columns, 172301 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 56945 rows, 1996 columns and 172301 nonzeros
Model fingerprint: 0x20f1002b
Variable types: 42 continuous, 1954 integer (1954 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 5479 rows and 22 columns
Presolve time: 0.37s
Presolved: 51466 rows, 1974 columns, 156114 nonzeros
Variable types: 0 continuous, 1974 integer (1932 binary)
Root relaxation presolved: 27645 rows, 25795 columns, 108472 nonzeros


Root relaxation: objective 3.600000e+01, 2768 iterations, 0.94 seconds (0.79 work units)

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

     0     0   36.00000    0  525          -   36.00000      -     -    3s
H    0     0                       7.0000000   36.00000   414%     -    5s
     0     0   36.00000    0  568    7.00000   36.00000   414%     -    8s
H    0     0                       8.0000000   36.00000   350%     -    8s
     0     0   36.00000    0  599    8.00000   36.00000   350%     -    9s
H    0     0                      12.0000000   36.00000   200%     -   21s
H    0     0                      13.0000000   36.00000   177%     -   21s
H    0     0                      16.0000000   36.00000   125%     -   21s
     0     0   36.00000    0  293   16.00000   36.00000   125%     -   21s
H    0     0                      17.0000000   36.00000   112%     -   21s
     0     0   36.00000    0  299   17.00000   36.00000   112%     -   21s
H    0     0                      18.0000000   36.00000   100%     -   26s
     0     0   36.00000    0  254   18.00000   36.00000   100%     -   26s
     0     0   36.00000    0  259   18.00000   36.00000   100%     -   26s
H    0     0                      19.0000000   36.00000  89.5%     -   30s
     0     0   36.00000    0  220   19.00000   36.00000  89.5%     -   30s
     0     0   36.00000    0  205   19.00000   36.00000  89.5%     -   30s
     0     0   36.00000    0  237   19.00000   36.00000  89.5%     -   33s
     0     0   36.00000    0  189   19.00000   36.00000  89.5%     -   34s
     0     0   36.00000    0  323   19.00000   36.00000  89.5%     -   39s
     0     0   36.00000    0  311   19.00000   36.00000  89.5%     -   40s
     0     0   36.00000    0  354   19.00000   36.00000  89.5%     -   44s
     0     0   36.00000    0  394   19.00000   36.00000  89.5%     -   45s
     0     0   36.00000    0  281   19.00000   36.00000  89.5%     -   49s
     0     0          -    0        19.00000   36.00000  89.5%     -   50s

Cutting planes:
  Gomory: 1
  Cover: 7
  Clique: 3
  MIR: 73
  Inf proof: 1
  Zero half: 6
  RLT: 35

Explored 1 nodes (73830 simplex iterations) in 50.05 seconds (45.24 work units)
Thread count was 8 (of 8 available processors)

Solution count 8: 19 18 17 ... 7

Time limit reached
Best objective 1.900000000000e+01, best bound 3.600000000000e+01, gap 89.4737%

Wrote result file './lp_solutions/grafo2843.43.sol'

