
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Thu Nov 14 07:40:37 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo5397.41.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/grafo5397.41.lp
Reading time = 0.12 seconds
: 54787 rows, 1865 columns, 165663 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 54787 rows, 1865 columns and 165663 nonzeros
Model fingerprint: 0xa8d23de3
Variable types: 41 continuous, 1824 integer (1824 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 -0.0000000
Presolve removed 7412 rows and 45 columns
Presolve time: 0.51s
Presolved: 47375 rows, 1820 columns, 143836 nonzeros
Variable types: 0 continuous, 1820 integer (1779 binary)
Found heuristic solution: objective 5.0000000
Root relaxation presolved: 26055 rows, 23140 columns, 101196 nonzeros


Root relaxation: objective 3.200000e+01, 2082 iterations, 1.00 seconds (0.66 work units)

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

     0     0   32.00000    0  268    5.00000   32.00000   540%     -    4s
H    0     0                       8.0000000   32.00000   300%     -    4s
H    0     0                      10.0000000   32.00000   220%     -    4s
H    0     0                      11.0000000   32.00000   191%     -    6s
     0     0   32.00000    0  471   11.00000   32.00000   191%     -    9s
     0     0   32.00000    0  456   11.00000   32.00000   191%     -   11s
H    0     0                      13.0000000   32.00000   146%     -   26s
     0     0   32.00000    0  415   13.00000   32.00000   146%     -   27s
     0     0   32.00000    0  408   13.00000   32.00000   146%     -   28s
H    0     0                      14.0000000   32.00000   129%     -   37s
     0     0   32.00000    0  379   14.00000   32.00000   129%     -   37s
H    0     0                      15.0000000   32.00000   113%     -   37s
     0     0   32.00000    0  318   15.00000   32.00000   113%     -   37s
     0     0   32.00000    0  326   15.00000   32.00000   113%     -   44s
     0     0   32.00000    0  388   15.00000   32.00000   113%     -   46s
     0     0   32.00000    0  413   15.00000   32.00000   113%     -   50s

Cutting planes:
  Cover: 16
  Clique: 1
  MIR: 104
  StrongCG: 1
  GUB cover: 4
  Zero half: 24
  RLT: 32

Explored 1 nodes (47397 simplex iterations) in 50.08 seconds (30.84 work units)
Thread count was 8 (of 8 available processors)

Solution count 8: 15 14 13 ... -0

Time limit reached
Best objective 1.500000000000e+01, best bound 3.200000000000e+01, gap 113.3333%

Wrote result file './lp_solutions/grafo5397.41.sol'


Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Fri Nov 22 04:55:25 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo5397.41.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/grafo5397.41.lp
Reading time = 0.09 seconds
: 54787 rows, 1865 columns, 165663 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 54787 rows, 1865 columns and 165663 nonzeros
Model fingerprint: 0xa8d23de3
Variable types: 41 continuous, 1824 integer (1824 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 -0.0000000
Presolve removed 7412 rows and 45 columns
Presolve time: 0.35s
Presolved: 47375 rows, 1820 columns, 143836 nonzeros
Variable types: 0 continuous, 1820 integer (1779 binary)
Found heuristic solution: objective 5.0000000
Root relaxation presolved: 26055 rows, 23140 columns, 101196 nonzeros


Root relaxation: objective 3.200000e+01, 2082 iterations, 0.69 seconds (0.66 work units)

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

     0     0   32.00000    0  268    5.00000   32.00000   540%     -    3s
H    0     0                       8.0000000   32.00000   300%     -    3s
H    0     0                      10.0000000   32.00000   220%     -    3s
H    0     0                      11.0000000   32.00000   191%     -    4s
     0     0   32.00000    0  471   11.00000   32.00000   191%     -    6s
     0     0   32.00000    0  456   11.00000   32.00000   191%     -    7s
H    0     0                      13.0000000   32.00000   146%     -   17s
     0     0   32.00000    0  415   13.00000   32.00000   146%     -   17s
     0     0   32.00000    0  408   13.00000   32.00000   146%     -   18s
H    0     0                      14.0000000   32.00000   129%     -   24s
     0     0   32.00000    0  379   14.00000   32.00000   129%     -   24s
H    0     0                      15.0000000   32.00000   113%     -   24s
     0     0   32.00000    0  318   15.00000   32.00000   113%     -   24s
     0     0   32.00000    0  326   15.00000   32.00000   113%     -   28s
     0     0   32.00000    0  388   15.00000   32.00000   113%     -   29s
     0     0   32.00000    0  390   15.00000   32.00000   113%     -   40s
     0     0   32.00000    0  396   15.00000   32.00000   113%     -   40s
     0     0   32.00000    0  360   15.00000   32.00000   113%     -   44s
     0     0   32.00000    0  314   15.00000   32.00000   113%     -   47s

Cutting planes:
  Cover: 5
  MIR: 16
  Zero half: 1
  RLT: 18

Explored 1 nodes (68795 simplex iterations) in 50.02 seconds (48.65 work units)
Thread count was 8 (of 8 available processors)

Solution count 8: 15 14 13 ... -0

Time limit reached
Best objective 1.500000000000e+01, best bound 3.200000000000e+01, gap 113.3333%

Wrote result file './lp_solutions/grafo5397.41.sol'

