
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Thu Nov 14 07:58:13 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo5510.34.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/grafo5510.34.lp
Reading time = 0.08 seconds
: 44801 rows, 1591 columns, 135709 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 44801 rows, 1591 columns and 135709 nonzeros
Model fingerprint: 0x8f610d1d
Variable types: 40 continuous, 1551 integer (1551 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 7749 rows and 34 columns
Presolve time: 0.39s
Presolved: 37052 rows, 1557 columns, 112921 nonzeros
Variable types: 0 continuous, 1557 integer (1517 binary)
Found heuristic solution: objective 4.0000000
Root relaxation presolved: 21188 rows, 17421 columns, 81193 nonzeros


Root relaxation: objective 3.100000e+01, 2584 iterations, 1.45 seconds (0.88 work units)

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

     0     0   31.00000    0  361    4.00000   31.00000   675%     -    4s
H    0     0                       7.0000000   31.00000   343%     -    4s
H    0     0                       9.0000000   31.00000   244%     -    4s
     0     0   31.00000    0  524    9.00000   31.00000   244%     -    9s
     0     0   31.00000    0  496    9.00000   31.00000   244%     -   10s
H    0     0                      10.0000000   31.00000   210%     -   12s
H    0     0                      11.0000000   31.00000   182%     -   29s
H    0     0                      12.0000000   31.00000   158%     -   29s
     0     0   31.00000    0  326   12.00000   31.00000   158%     -   30s
     0     0   31.00000    0  326   12.00000   31.00000   158%     -   30s
H    0     0                      13.0000000   31.00000   138%     -   31s
H    0     0                      14.0000000   31.00000   121%     -   40s
     0     0   31.00000    0  245   14.00000   31.00000   121%     -   40s
     0     0   31.00000    0  284   14.00000   31.00000   121%     -   41s
     0     0   31.00000    0  430   14.00000   31.00000   121%     -   50s

Cutting planes:
  Gomory: 1
  Cover: 27
  MIR: 93
  StrongCG: 1
  GUB cover: 1
  Zero half: 39
  RLT: 38

Explored 1 nodes (51194 simplex iterations) in 50.08 seconds (31.98 work units)
Thread count was 8 (of 8 available processors)

Solution count 8: 14 13 12 ... 4

Time limit reached
Best objective 1.400000000000e+01, best bound 3.100000000000e+01, gap 121.4286%

Wrote result file './lp_solutions/grafo5510.34.sol'


Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Thu Nov 21 05:35:12 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo5510.34.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/grafo5510.34.lp
Reading time = 0.08 seconds
: 44801 rows, 1591 columns, 135709 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 44801 rows, 1591 columns and 135709 nonzeros
Model fingerprint: 0x8f610d1d
Variable types: 40 continuous, 1551 integer (1551 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 7749 rows and 34 columns
Presolve time: 0.31s
Presolved: 37052 rows, 1557 columns, 112921 nonzeros
Variable types: 0 continuous, 1557 integer (1517 binary)
Found heuristic solution: objective 4.0000000
Root relaxation presolved: 21188 rows, 17421 columns, 81193 nonzeros


Root relaxation: objective 3.100000e+01, 2584 iterations, 0.91 seconds (0.88 work units)

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

     0     0   31.00000    0  361    4.00000   31.00000   675%     -    2s
H    0     0                       7.0000000   31.00000   343%     -    2s
H    0     0                       9.0000000   31.00000   244%     -    2s
     0     0   31.00000    0  524    9.00000   31.00000   244%     -    6s
     0     0   31.00000    0  496    9.00000   31.00000   244%     -    6s
H    0     0                      10.0000000   31.00000   210%     -    8s
H    0     0                      11.0000000   31.00000   182%     -   20s
H    0     0                      12.0000000   31.00000   158%     -   20s
     0     0   31.00000    0  326   12.00000   31.00000   158%     -   20s
     0     0   31.00000    0  326   12.00000   31.00000   158%     -   20s
H    0     0                      13.0000000   31.00000   138%     -   21s
H    0     0                      14.0000000   31.00000   121%     -   27s
     0     0   31.00000    0  245   14.00000   31.00000   121%     -   27s
     0     0   31.00000    0  284   14.00000   31.00000   121%     -   28s
H    0     0                      15.0000000   31.00000   107%     -   39s
     0     0   31.00000    0  322   15.00000   31.00000   107%     -   39s
     0     0   31.00000    0  335   15.00000   31.00000   107%     -   39s
H    0     0                      16.0000000   31.00000  93.7%     -   39s
     0     0   31.00000    0  315   16.00000   31.00000  93.7%     -   44s
     0     0   31.00000    0  323   16.00000   31.00000  93.7%     -   44s
     0     0   31.00000    0  259   16.00000   31.00000  93.7%     -   47s
     0     0   31.00000    0  238   16.00000   31.00000  93.7%     -   48s
     0     0   31.00000    0  386   16.00000   31.00000  93.7%     -   50s

Cutting planes:
  Cover: 20
  MIR: 91
  StrongCG: 1
  GUB cover: 1
  Zero half: 36
  RLT: 36
  Relax-and-lift: 1

Explored 1 nodes (75701 simplex iterations) in 50.04 seconds (44.74 work units)
Thread count was 8 (of 8 available processors)

Solution count 10: 16 15 14 ... 4

Time limit reached
Best objective 1.600000000000e+01, best bound 3.100000000000e+01, gap 93.7500%

Wrote result file './lp_solutions/grafo5510.34.sol'

