
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Wed Nov 13 01:41:03 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo1153.21.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/grafo1153.21.lp
Reading time = 0.02 seconds
: 5047 rows, 448 columns, 15325 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 5047 rows, 448 columns and 15325 nonzeros
Model fingerprint: 0x03a4781f
Variable types: 19 continuous, 429 integer (429 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 320 rows and 21 columns
Presolve time: 0.15s
Presolved: 4727 rows, 427 columns, 14515 nonzeros
Variable types: 0 continuous, 427 integer (408 binary)
Found heuristic solution: objective 4.0000000

Root relaxation: objective 8.000000e+00, 162 iterations, 0.11 seconds (0.01 work units)

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

     0     0    8.00000    0   23    4.00000    8.00000   100%     -    0s
H    0     0                       5.0000000    8.00000  60.0%     -    0s
     0     0    8.00000    0  101    5.00000    8.00000  60.0%     -    0s
     0     0    8.00000    0   43    5.00000    8.00000  60.0%     -    2s
H    0     0                       6.0000000    8.00000  33.3%     -    2s
H    0     0                       7.0000000    8.00000  14.3%     -    2s
     0     0    8.00000    0   75    7.00000    8.00000  14.3%     -    3s
     0     0    8.00000    0   74    7.00000    8.00000  14.3%     -    3s
     0     0    8.00000    0   60    7.00000    8.00000  14.3%     -    3s
     0     0    8.00000    0   60    7.00000    8.00000  14.3%     -    3s
     0     0    8.00000    0   40    7.00000    8.00000  14.3%     -    4s
     0     0    8.00000    0   45    7.00000    8.00000  14.3%     -    4s
H    0     0                       8.0000000    8.00000  0.00%     -    4s

Cutting planes:
  Cover: 5
  Clique: 1
  MIR: 19
  StrongCG: 3
  GUB cover: 1
  RLT: 8

Explored 1 nodes (3365 simplex iterations) in 4.17 seconds (0.52 work units)
Thread count was 8 (of 8 available processors)

Solution count 6: 8 7 6 ... 2

Optimal solution found (tolerance 1.00e-04)
Best objective 8.000000000000e+00, best bound 8.000000000000e+00, gap 0.0000%

Wrote result file './lp_solutions/grafo1153.21.sol'


Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Wed Nov 13 01:57:31 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo1153.21.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/grafo1153.21.lp
Reading time = 0.02 seconds
: 5047 rows, 448 columns, 15325 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 5047 rows, 448 columns and 15325 nonzeros
Model fingerprint: 0x03a4781f
Variable types: 19 continuous, 429 integer (429 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 320 rows and 21 columns
Presolve time: 0.07s
Presolved: 4727 rows, 427 columns, 14515 nonzeros
Variable types: 0 continuous, 427 integer (408 binary)
Found heuristic solution: objective 4.0000000

Root relaxation: objective 8.000000e+00, 162 iterations, 0.03 seconds (0.01 work units)

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

     0     0    8.00000    0   23    4.00000    8.00000   100%     -    0s
H    0     0                       5.0000000    8.00000  60.0%     -    0s
     0     0    8.00000    0  101    5.00000    8.00000  60.0%     -    0s
     0     0    8.00000    0   43    5.00000    8.00000  60.0%     -    1s
H    0     0                       6.0000000    8.00000  33.3%     -    1s
H    0     0                       7.0000000    8.00000  14.3%     -    1s
     0     0    8.00000    0   75    7.00000    8.00000  14.3%     -    2s
     0     0    8.00000    0   74    7.00000    8.00000  14.3%     -    2s
     0     0    8.00000    0   60    7.00000    8.00000  14.3%     -    2s
     0     0    8.00000    0   60    7.00000    8.00000  14.3%     -    2s
     0     0    8.00000    0   40    7.00000    8.00000  14.3%     -    2s
     0     0    8.00000    0   45    7.00000    8.00000  14.3%     -    2s
H    0     0                       8.0000000    8.00000  0.00%     -    3s

Cutting planes:
  Cover: 5
  Clique: 1
  MIR: 19
  StrongCG: 3
  GUB cover: 1
  RLT: 8

Explored 1 nodes (3365 simplex iterations) in 3.14 seconds (0.52 work units)
Thread count was 8 (of 8 available processors)

Solution count 6: 8 7 6 ... 2

Optimal solution found (tolerance 1.00e-04)
Best objective 8.000000000000e+00, best bound 8.000000000000e+00, gap 0.0000%

Wrote result file './lp_solutions/grafo1153.21.sol'

