
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Thu Nov 14 05:18:50 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo2836.39.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/grafo2836.39.lp
Reading time = 0.11 seconds
: 44654 rows, 1798 columns, 135392 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 44654 rows, 1798 columns and 135392 nonzeros
Model fingerprint: 0xdd710435
Variable types: 42 continuous, 1756 integer (1756 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 2058 rows and 30 columns
Presolve time: 0.44s
Presolved: 42596 rows, 1768 columns, 129525 nonzeros
Variable types: 0 continuous, 1768 integer (1726 binary)
Root relaxation presolved: 21977 rows, 22387 columns, 88287 nonzeros


Root relaxation: objective 2.600000e+01, 2596 iterations, 1.32 seconds (0.65 work units)

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

     0     0   26.00000    0  336          -   26.00000      -     -    4s
H    0     0                       8.0000000   26.00000   225%     -    4s
     0     0   26.00000    0  645    8.00000   26.00000   225%     -   10s
     0     0   26.00000    0  611    8.00000   26.00000   225%     -   11s
     0     0   26.00000    0  340    8.00000   26.00000   225%     -   26s
H    0     0                       9.0000000   26.00000   189%     -   26s
H    0     0                      10.0000000   26.00000   160%     -   26s
     0     0   26.00000    0  329   10.00000   26.00000   160%     -   27s
     0     0   26.00000    0  317   10.00000   26.00000   160%     -   36s
H    0     0                      12.0000000   26.00000   117%     -   36s
     0     0   26.00000    0  291   12.00000   26.00000   117%     -   37s
     0     0   26.00000    0  181   12.00000   26.00000   117%     -   42s
     0     0   26.00000    0  366   12.00000   26.00000   117%     -   44s
     0     0   26.00000    0  283   12.00000   26.00000   117%     -   50s

Cutting planes:
  Cover: 21
  Clique: 5
  MIR: 50
  StrongCG: 1
  GUB cover: 3
  Zero half: 20
  RLT: 35
  BQP: 3

Explored 1 nodes (51790 simplex iterations) in 50.07 seconds (29.06 work units)
Thread count was 8 (of 8 available processors)

Solution count 4: 12 10 9 8 

Time limit reached
Best objective 1.200000000000e+01, best bound 2.600000000000e+01, gap 116.6667%

Wrote result file './lp_solutions/grafo2836.39.sol'


Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Fri Nov 22 03:08:38 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo2836.39.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/grafo2836.39.lp
Reading time = 0.07 seconds
: 44654 rows, 1798 columns, 135392 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 44654 rows, 1798 columns and 135392 nonzeros
Model fingerprint: 0xdd710435
Variable types: 42 continuous, 1756 integer (1756 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 2058 rows and 30 columns
Presolve time: 0.31s
Presolved: 42596 rows, 1768 columns, 129525 nonzeros
Variable types: 0 continuous, 1768 integer (1726 binary)
Root relaxation presolved: 21977 rows, 22387 columns, 88287 nonzeros


Root relaxation: objective 2.600000e+01, 2596 iterations, 0.78 seconds (0.65 work units)

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

     0     0   26.00000    0  336          -   26.00000      -     -    2s
H    0     0                       8.0000000   26.00000   225%     -    2s
     0     0   26.00000    0  645    8.00000   26.00000   225%     -    6s
     0     0   26.00000    0  611    8.00000   26.00000   225%     -    6s
     0     0   26.00000    0  340    8.00000   26.00000   225%     -   17s
H    0     0                       9.0000000   26.00000   189%     -   17s
H    0     0                      10.0000000   26.00000   160%     -   17s
     0     0   26.00000    0  329   10.00000   26.00000   160%     -   17s
     0     0   26.00000    0  317   10.00000   26.00000   160%     -   24s
H    0     0                      12.0000000   26.00000   117%     -   24s
     0     0   26.00000    0  291   12.00000   26.00000   117%     -   24s
     0     0   26.00000    0  181   12.00000   26.00000   117%     -   28s
     0     0   26.00000    0  366   12.00000   26.00000   117%     -   29s
     0     0   26.00000    0  244   12.00000   26.00000   117%     -   33s
     0     0   26.00000    0  345   12.00000   26.00000   117%     -   33s
H    0     0                      13.0000000   26.00000   100%     -   45s
H    0     0                      14.0000000   26.00000  85.7%     -   45s
     0     0   26.00000    0  342   14.00000   26.00000  85.7%     -   45s
     0     0   26.00000    0  301   14.00000   26.00000  85.7%     -   45s
     0     0   26.00000    0  154   14.00000   26.00000  85.7%     -   49s
     0     0   26.00000    0  200   14.00000   26.00000  85.7%     -   49s

Cutting planes:
  Gomory: 1
  Lift-and-project: 1
  Cover: 23
  Clique: 8
  MIR: 45
  GUB cover: 2
  Zero half: 4
  RLT: 22
  BQP: 5

Explored 1 nodes (81109 simplex iterations) in 50.05 seconds (46.50 work units)
Thread count was 8 (of 8 available processors)

Solution count 6: 14 13 12 ... 8

Time limit reached
Best objective 1.400000000000e+01, best bound 2.600000000000e+01, gap 85.7143%

Wrote result file './lp_solutions/grafo2836.39.sol'

