
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Thu Nov 14 05:46:31 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo3174.39.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/grafo3174.39.lp
Reading time = 0.11 seconds
: 57584 rows, 1601 columns, 173764 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 57584 rows, 1601 columns and 173764 nonzeros
Model fingerprint: 0x21cb0816
Variable types: 36 continuous, 1565 integer (1565 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 14449 rows and 30 columns
Presolve time: 0.50s
Presolved: 43135 rows, 1571 columns, 130719 nonzeros
Variable types: 0 continuous, 1571 integer (1535 binary)
Found heuristic solution: objective 3.0000000
Root relaxation presolved: 26856 rows, 17850 columns, 98161 nonzeros


Root relaxation: objective 3.200000e+01, 2821 iterations, 1.83 seconds (1.23 work units)
Total elapsed time = 5.45s (DegenMoves)

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

     0     0   32.00000    0  378    3.00000   32.00000   967%     -    6s
H    0     0                       4.0000000   32.00000   700%     -    6s
H    0     0                       5.0000000   32.00000   540%     -    6s
H    0     0                       6.0000000   32.00000   433%     -    8s
     0     0   32.00000    0  715    6.00000   32.00000   433%     -   15s
     0     0   32.00000    0  654    6.00000   32.00000   433%     -   16s
H    0     0                       7.0000000   32.00000   357%     -   29s
     0     0   32.00000    0  337    7.00000   32.00000   357%     -   29s
     0     0   32.00000    0  322    7.00000   32.00000   357%     -   29s
     0     0   32.00000    0  346    7.00000   32.00000   357%     -   37s
     0     0   32.00000    0  320    7.00000   32.00000   357%     -   38s
     0     0   32.00000    0  312    7.00000   32.00000   357%     -   47s
H    0     0                       8.0000000   32.00000   300%     -   47s
H    0     0                       9.0000000   32.00000   256%     -   47s
     0     0   32.00000    0  285    9.00000   32.00000   256%     -   47s
     0     0          -    0         9.00000   32.00000   256%     -   50s

Cutting planes:
  Cover: 23
  Clique: 6
  MIR: 92
  GUB cover: 2
  Zero half: 29
  RLT: 46

Explored 1 nodes (44162 simplex iterations) in 50.05 seconds (31.12 work units)
Thread count was 8 (of 8 available processors)

Solution count 8: 9 8 7 ... -0

Time limit reached
Best objective 9.000000000000e+00, best bound 3.200000000000e+01, gap 255.5556%

Wrote result file './lp_solutions/grafo3174.39.sol'


Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Fri Nov 22 03:11:09 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo3174.39.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/grafo3174.39.lp
Reading time = 0.09 seconds
: 57584 rows, 1601 columns, 173764 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 57584 rows, 1601 columns and 173764 nonzeros
Model fingerprint: 0x21cb0816
Variable types: 36 continuous, 1565 integer (1565 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 14449 rows and 30 columns
Presolve time: 0.39s
Presolved: 43135 rows, 1571 columns, 130719 nonzeros
Variable types: 0 continuous, 1571 integer (1535 binary)
Found heuristic solution: objective 3.0000000
Root relaxation presolved: 26856 rows, 17850 columns, 98161 nonzeros


Root relaxation: objective 3.200000e+01, 2821 iterations, 1.20 seconds (1.23 work units)

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

     0     0   32.00000    0  378    3.00000   32.00000   967%     -    4s
H    0     0                       4.0000000   32.00000   700%     -    4s
H    0     0                       5.0000000   32.00000   540%     -    4s
H    0     0                       6.0000000   32.00000   433%     -    5s
     0     0   32.00000    0  715    6.00000   32.00000   433%     -   10s
     0     0   32.00000    0  654    6.00000   32.00000   433%     -   10s
H    0     0                       7.0000000   32.00000   357%     -   19s
     0     0   32.00000    0  337    7.00000   32.00000   357%     -   19s
     0     0   32.00000    0  322    7.00000   32.00000   357%     -   20s
     0     0   32.00000    0  346    7.00000   32.00000   357%     -   25s
     0     0   32.00000    0  320    7.00000   32.00000   357%     -   25s
     0     0   32.00000    0  312    7.00000   32.00000   357%     -   31s
H    0     0                       8.0000000   32.00000   300%     -   31s
H    0     0                       9.0000000   32.00000   256%     -   31s
     0     0   32.00000    0  285    9.00000   32.00000   256%     -   31s
     0     0   32.00000    0  271    9.00000   32.00000   256%     -   41s
     0     0   32.00000    0  232    9.00000   32.00000   256%     -   41s
     0     0   32.00000    0  362    9.00000   32.00000   256%     -   50s

Cutting planes:
  Gomory: 1
  Cover: 25
  Clique: 12
  MIR: 133
  GUB cover: 7
  Zero half: 29
  RLT: 44
  BQP: 1

Explored 1 nodes (70596 simplex iterations) in 50.04 seconds (50.42 work units)
Thread count was 8 (of 8 available processors)

Solution count 8: 9 8 7 ... -0

Time limit reached
Best objective 9.000000000000e+00, best bound 3.200000000000e+01, gap 255.5556%

Wrote result file './lp_solutions/grafo3174.39.sol'

