
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Thu Nov 14 06:36:02 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo3809.43.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/grafo3809.43.lp
Reading time = 0.12 seconds
: 58034 rows, 2012 columns, 175534 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 58034 rows, 2012 columns and 175534 nonzeros
Model fingerprint: 0x140adaa1
Variable types: 42 continuous, 1970 integer (1970 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 6719 rows and 35 columns
Presolve time: 0.57s
Presolved: 51315 rows, 1977 columns, 155770 nonzeros
Variable types: 0 continuous, 1977 integer (1935 binary)
Root relaxation presolved: 27494 rows, 25798 columns, 108128 nonzeros


Root relaxation: objective 3.400000e+01, 3692 iterations, 2.83 seconds (1.70 work units)
Total elapsed time = 8.19s (DegenMoves)
Total elapsed time = 15.52s (DegenMoves)

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

     0     0   34.00000    0  498          -   34.00000      -     -   19s
H    0     0                       4.0000000   34.00000   750%     -   19s
H    0     0                       5.0000000   34.00000   580%     -   19s
     0     0   34.00000    0  559    5.00000   34.00000   580%     -   27s
H    0     0                       8.0000000   34.00000   325%     -   27s
     0     0   34.00000    0  554    8.00000   34.00000   325%     -   27s
     0     0   34.00000    0  646    8.00000   34.00000   325%     -   45s
     0     0   34.00000    0  643    8.00000   34.00000   325%     -   46s
     0     0   34.00000    0  601    8.00000   34.00000   325%     -   50s

Cutting planes:
  Lift-and-project: 4
  Cover: 11
  MIR: 92
  StrongCG: 2
  GUB cover: 1
  Zero half: 70
  RLT: 46

Explored 1 nodes (41308 simplex iterations) in 50.08 seconds (35.17 work units)
Thread count was 8 (of 8 available processors)

Solution count 3: 8 5 4 

Time limit reached
Best objective 8.000000000000e+00, best bound 3.400000000000e+01, gap 325.0000%

Wrote result file './lp_solutions/grafo3809.43.sol'


Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Fri Nov 22 05:54:05 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo3809.43.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/grafo3809.43.lp
Reading time = 0.09 seconds
: 58034 rows, 2012 columns, 175534 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 58034 rows, 2012 columns and 175534 nonzeros
Model fingerprint: 0x140adaa1
Variable types: 42 continuous, 1970 integer (1970 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 6719 rows and 35 columns
Presolve time: 0.38s
Presolved: 51315 rows, 1977 columns, 155770 nonzeros
Variable types: 0 continuous, 1977 integer (1935 binary)
Root relaxation presolved: 27494 rows, 25798 columns, 108128 nonzeros


Root relaxation: objective 3.400000e+01, 3692 iterations, 1.79 seconds (1.70 work units)
Total elapsed time = 5.58s (DegenMoves)
Total elapsed time = 11.01s (DegenMoves)

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

     0     0   34.00000    0  498          -   34.00000      -     -   13s
H    0     0                       4.0000000   34.00000   750%     -   13s
H    0     0                       5.0000000   34.00000   580%     -   13s
     0     0   34.00000    0  559    5.00000   34.00000   580%     -   18s
H    0     0                       8.0000000   34.00000   325%     -   19s
     0     0   34.00000    0  554    8.00000   34.00000   325%     -   19s
     0     0   34.00000    0  646    8.00000   34.00000   325%     -   32s
     0     0   34.00000    0  643    8.00000   34.00000   325%     -   32s
H    0     0                       9.0000000   34.00000   278%     -   49s
H    0     0                      11.0000000   34.00000   209%     -   49s
H    0     0                      12.0000000   34.00000   183%     -   49s
H    0     0                      14.0000000   34.00000   143%     -   49s
     0     0   34.00000    0  478   14.00000   34.00000   143%     -   49s

Cutting planes:
  Lift-and-project: 3
  Cover: 2
  MIR: 27
  StrongCG: 1
  Zero half: 4
  RLT: 15

Explored 1 nodes (60740 simplex iterations) in 50.08 seconds (50.58 work units)
Thread count was 8 (of 8 available processors)

Solution count 7: 14 12 11 ... 4

Time limit reached
Best objective 1.400000000000e+01, best bound 3.400000000000e+01, gap 142.8571%

Wrote result file './lp_solutions/grafo3809.43.sol'

