
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Thu Nov 21 09:49:01 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo6467.38.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/grafo6467.38.lp
Reading time = 0.11 seconds
: 60539 rows, 1484 columns, 182510 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 60539 rows, 1484 columns and 182510 nonzeros
Model fingerprint: 0x90fb8c47
Variable types: 33 continuous, 1451 integer (1451 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 3.0000000
Presolve removed 18658 rows and 18 columns
Presolve time: 0.47s
Presolved: 41881 rows, 1466 columns, 126808 nonzeros
Variable types: 0 continuous, 1466 integer (1433 binary)
Found heuristic solution: objective 7.0000000
Root relaxation presolved: 27989 rows, 15358 columns, 99024 nonzeros


Root relaxation: objective 3.100000e+01, 2381 iterations, 1.19 seconds (1.15 work units)

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

     0     0   31.00000    0  287    7.00000   31.00000   343%     -    3s
H    0     0                      11.0000000   31.00000   182%     -    3s
H    0     0                      12.0000000   31.00000   158%     -    3s
     0     0   31.00000    0  524   12.00000   31.00000   158%     -    7s
H    0     0                      13.0000000   31.00000   138%     -    7s
     0     0   31.00000    0  507   13.00000   31.00000   138%     -    7s
     0     0   30.00000    0  297   13.00000   30.00000   131%     -   15s
     0     0   30.00000    0  292   13.00000   30.00000   131%     -   15s
     0     0   30.00000    0  214   13.00000   30.00000   131%     -   21s
     0     0   30.00000    0  191   13.00000   30.00000   131%     -   21s
     0     0   30.00000    0  283   13.00000   30.00000   131%     -   25s
     0     0   30.00000    0  249   13.00000   30.00000   131%     -   25s
H    0     0                      14.0000000   30.00000   114%     -   30s
H    0     0                      15.0000000   30.00000   100%     -   30s
     0     0   30.00000    0  389   15.00000   30.00000   100%     -   30s
     0     0   30.00000    0  346   15.00000   30.00000   100%     -   31s
     0     0   30.00000    0  289   15.00000   30.00000   100%     -   39s
     0     0   30.00000    0  297   15.00000   30.00000   100%     -   39s
     0     0   30.00000    0  261   15.00000   30.00000   100%     -   50s

Cutting planes:
  Cover: 2
  Clique: 7
  MIR: 12
  Zero half: 2
  RLT: 8

Explored 1 nodes (59650 simplex iterations) in 50.06 seconds (42.50 work units)
Thread count was 8 (of 8 available processors)

Solution count 7: 15 14 13 ... 3

Time limit reached
Best objective 1.500000000000e+01, best bound 3.000000000000e+01, gap 100.0000%

Wrote result file './lp_solutions/grafo6467.38.sol'


Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Fri Nov 22 02:44:20 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo6467.38.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/grafo6467.38.lp
Reading time = 0.10 seconds
: 60539 rows, 1484 columns, 182510 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 60539 rows, 1484 columns and 182510 nonzeros
Model fingerprint: 0x90fb8c47
Variable types: 33 continuous, 1451 integer (1451 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 3.0000000
Presolve removed 18658 rows and 18 columns
Presolve time: 0.42s
Presolved: 41881 rows, 1466 columns, 126808 nonzeros
Variable types: 0 continuous, 1466 integer (1433 binary)
Found heuristic solution: objective 7.0000000
Root relaxation presolved: 27989 rows, 15358 columns, 99024 nonzeros


Root relaxation: objective 3.100000e+01, 2381 iterations, 1.04 seconds (1.15 work units)

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

     0     0   31.00000    0  287    7.00000   31.00000   343%     -    3s
H    0     0                      11.0000000   31.00000   182%     -    3s
H    0     0                      12.0000000   31.00000   158%     -    3s
     0     0   31.00000    0  524   12.00000   31.00000   158%     -    6s
H    0     0                      13.0000000   31.00000   138%     -    6s
     0     0   31.00000    0  507   13.00000   31.00000   138%     -    6s
     0     0   30.00000    0  297   13.00000   30.00000   131%     -   13s
     0     0   30.00000    0  292   13.00000   30.00000   131%     -   13s
     0     0   30.00000    0  214   13.00000   30.00000   131%     -   18s
     0     0   30.00000    0  191   13.00000   30.00000   131%     -   18s
     0     0   30.00000    0  283   13.00000   30.00000   131%     -   21s
     0     0   30.00000    0  249   13.00000   30.00000   131%     -   22s
H    0     0                      14.0000000   30.00000   114%     -   26s
H    0     0                      15.0000000   30.00000   100%     -   26s
     0     0   30.00000    0  389   15.00000   30.00000   100%     -   26s
     0     0   30.00000    0  346   15.00000   30.00000   100%     -   26s
     0     0   30.00000    0  289   15.00000   30.00000   100%     -   33s
     0     0   30.00000    0  297   15.00000   30.00000   100%     -   33s
     0     0   30.00000    0  261   15.00000   30.00000   100%     -   43s
     0     0   30.00000    0  235   15.00000   30.00000   100%     -   46s
     0     2   30.00000    0  206   15.00000   30.00000   100%     -   50s

Cutting planes:
  Cover: 5
  Clique: 8
  MIR: 35
  StrongCG: 2
  GUB cover: 2
  Zero half: 2
  RLT: 17

Explored 1 nodes (67362 simplex iterations) in 50.04 seconds (51.58 work units)
Thread count was 8 (of 8 available processors)

Solution count 7: 15 14 13 ... 3

Time limit reached
Best objective 1.500000000000e+01, best bound 3.000000000000e+01, gap 100.0000%

Wrote result file './lp_solutions/grafo6467.38.sol'

