
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Fri Nov  1 22:20:58 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo10459.37.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/grafo10459.37.lp
Reading time = 0.37 seconds
: 72727 rows, 1855 columns, 219721 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 72727 rows, 1855 columns and 219721 nonzeros
Model fingerprint: 0xae9d9840
Variable types: 43 continuous, 1812 integer (1812 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]
Found heuristic solution: objective 2.0000000
Presolve removed 18416 rows and 18 columns
Presolve time: 1.31s
Presolved: 54311 rows, 1837 columns, 164707 nonzeros
Variable types: 0 continuous, 1837 integer (1794 binary)
Found heuristic solution: objective 7.0000000
Root relaxation presolved: 1837 rows, 56148 columns, 166544 nonzeros


Root relaxation: objective 4.000000e+01, 1155 iterations, 0.67 seconds (0.24 work units)

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

     0     0   40.00000    0  255    7.00000   40.00000   471%     -    4s
H    0     0                       8.0000000   40.00000   400%     -    4s
H    0     0                      10.0000000   40.00000   300%     -    4s
H    0     0                      11.0000000   40.00000   264%     -    7s
H    0     0                      13.0000000   40.00000   208%     -   31s
H    0     0                      14.0000000   40.00000   186%     -   31s
H    0     0                      15.0000000   40.00000   167%     -   31s
     0     0   40.00000    0  482   15.00000   40.00000   167%     -   32s
H    0     0                      16.0000000   40.00000   150%     -   33s
     0     0   40.00000    0  424   16.00000   40.00000   150%     -   34s
     0     0   40.00000    0  480   16.00000   40.00000   150%     -   50s

Cutting planes:
  Gomory: 5
  Lift-and-project: 18
  Cover: 11
  Clique: 15
  MIR: 103
  Zero half: 45
  RLT: 52
  BQP: 2

Explored 1 nodes (10345 simplex iterations) in 50.48 seconds (7.73 work units)
Thread count was 8 (of 8 available processors)

Solution count 9: 16 15 14 ... 2

Time limit reached
Best objective 1.600000000000e+01, best bound 4.000000000000e+01, gap 150.0000%

Wrote result file './lp_solutions/grafo10459.37.sol'


Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Mon Nov 18 20:38:00 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo10459.37.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/grafo10459.37.lp
Reading time = 0.12 seconds
: 72727 rows, 1855 columns, 219721 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 72727 rows, 1855 columns and 219721 nonzeros
Model fingerprint: 0xae9d9840
Variable types: 43 continuous, 1812 integer (1812 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]
Found heuristic solution: objective 2.0000000
Presolve removed 18416 rows and 18 columns
Presolve time: 0.49s
Presolved: 54311 rows, 1837 columns, 164707 nonzeros
Variable types: 0 continuous, 1837 integer (1794 binary)
Found heuristic solution: objective 7.0000000
Root relaxation presolved: 1837 rows, 56148 columns, 166544 nonzeros


Root relaxation: objective 4.000000e+01, 1155 iterations, 0.26 seconds (0.24 work units)

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

     0     0   40.00000    0  255    7.00000   40.00000   471%     -    1s
H    0     0                       8.0000000   40.00000   400%     -    1s
H    0     0                      10.0000000   40.00000   300%     -    1s
H    0     0                      11.0000000   40.00000   264%     -    2s
H    0     0                      13.0000000   40.00000   208%     -    4s
H    0     0                      14.0000000   40.00000   186%     -    4s
H    0     0                      15.0000000   40.00000   167%     -    4s
     0     0   40.00000    0  482   15.00000   40.00000   167%     -    4s
H    0     0                      16.0000000   40.00000   150%     -    4s
     0     0   40.00000    0  424   16.00000   40.00000   150%     -    5s
H    0     0                      17.0000000   40.00000   135%     -   10s
H    0     0                      18.0000000   40.00000   122%     -   10s
     0     0   39.66667    0  326   18.00000   39.66667   120%     -   10s
     0     0   39.66667    0  347   18.00000   39.66667   120%     -   11s
H    0     0                      19.0000000   39.66667   109%     -   11s
     0     0   39.50000    0  282   19.00000   39.50000   108%     -   19s
     0     0   39.40000    0  346   19.00000   39.40000   107%     -   20s
     0     0   39.33333    0  334   19.00000   39.33333   107%     -   28s
     0     0   39.16667    0  321   19.00000   39.16667   106%     -   29s
     0     0   39.00000    0  393   19.00000   39.00000   105%     -   38s
     0     0   39.00000    0  391   19.00000   39.00000   105%     -   40s
     0     0   39.00000    0  458   19.00000   39.00000   105%     -   50s

Cutting planes:
  Cover: 26
  Clique: 14
  MIR: 136
  StrongCG: 2
  Zero half: 16
  RLT: 70
  BQP: 1

Explored 1 nodes (51301 simplex iterations) in 50.05 seconds (41.37 work units)
Thread count was 8 (of 8 available processors)

Solution count 10: 19 18 17 ... 8

Time limit reached
Best objective 1.900000000000e+01, best bound 3.900000000000e+01, gap 105.2632%

Wrote result file './lp_solutions/grafo10459.37.sol'

