
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Fri Nov  1 22:18:57 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo10450.36.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/grafo10450.36.lp
Reading time = 0.23 seconds
: 50224 rows, 1812 columns, 152190 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 50224 rows, 1812 columns and 152190 nonzeros
Model fingerprint: 0x36799adc
Variable types: 42 continuous, 1770 integer (1770 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 8214 rows and 36 columns
Presolve time: 0.89s
Presolved: 42010 rows, 1776 columns, 128023 nonzeros
Variable types: 0 continuous, 1776 integer (1734 binary)
Root relaxation presolved: 23390 rows, 20396 columns, 90783 nonzeros


Root relaxation: objective 3.600000e+01, 1036 iterations, 0.77 seconds (0.22 work units)

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

     0     0   36.00000    0  343          -   36.00000      -     -    3s
H    0     0                      13.0000000   36.00000   177%     -    5s
H    0     0                      17.0000000   36.00000   112%     -    5s
     0     0   36.00000    0  515   17.00000   36.00000   112%     -   13s
     0     0   36.00000    0  501   17.00000   36.00000   112%     -   16s
     0     0   36.00000    0  543   17.00000   36.00000   112%     -   50s

Cutting planes:
  Gomory: 6
  Lift-and-project: 36
  Cover: 23
  Clique: 12
  MIR: 88
  StrongCG: 1
  Zero half: 38
  RLT: 41
  BQP: 1

Explored 1 nodes (12006 simplex iterations) in 50.40 seconds (8.59 work units)
Thread count was 8 (of 8 available processors)

Solution count 2: 17 13 

Time limit reached
Best objective 1.700000000000e+01, best bound 3.600000000000e+01, gap 111.7647%

Wrote result file './lp_solutions/grafo10450.36.sol'


Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Mon Nov 18 19:58:58 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo10450.36.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/grafo10450.36.lp
Reading time = 0.09 seconds
: 50224 rows, 1812 columns, 152190 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 50224 rows, 1812 columns and 152190 nonzeros
Model fingerprint: 0x36799adc
Variable types: 42 continuous, 1770 integer (1770 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 8214 rows and 36 columns
Presolve time: 0.39s
Presolved: 42010 rows, 1776 columns, 128023 nonzeros
Variable types: 0 continuous, 1776 integer (1734 binary)
Root relaxation presolved: 23390 rows, 20396 columns, 90783 nonzeros


Root relaxation: objective 3.600000e+01, 1036 iterations, 0.30 seconds (0.22 work units)

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

     0     0   36.00000    0  343          -   36.00000      -     -    1s
H    0     0                      13.0000000   36.00000   177%     -    2s
H    0     0                      17.0000000   36.00000   112%     -    2s
     0     0   36.00000    0  515   17.00000   36.00000   112%     -    6s
     0     0   36.00000    0  501   17.00000   36.00000   112%     -    7s
     0     0   36.00000    0  543   17.00000   36.00000   112%     -   18s
     0     0   36.00000    0  515   17.00000   36.00000   112%     -   19s
H    0     0                      18.0000000   36.00000   100%     -   35s
     0     0   36.00000    0  410   18.00000   36.00000   100%     -   36s
     0     0   36.00000    0  545   18.00000   36.00000   100%     -   38s
     0     0   36.00000    0  423   18.00000   36.00000   100%     -   49s
     0     0   36.00000    0  379   18.00000   36.00000   100%     -   49s

Cutting planes:
  Cover: 24
  Clique: 7
  MIR: 92
  StrongCG: 1
  GUB cover: 8
  Inf proof: 1
  Zero half: 1
  RLT: 23
  PSD: 2

Explored 1 nodes (56811 simplex iterations) in 50.04 seconds (41.32 work units)
Thread count was 8 (of 8 available processors)

Solution count 3: 18 17 13 

Time limit reached
Best objective 1.800000000000e+01, best bound 3.600000000000e+01, gap 100.0000%

Wrote result file './lp_solutions/grafo10450.36.sol'

