
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Thu Nov 14 05:54:54 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo3296.40.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/grafo3296.40.lp
Reading time = 0.12 seconds
: 61380 rows, 1689 columns, 185225 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 61380 rows, 1689 columns and 185225 nonzeros
Model fingerprint: 0xb77329fb
Variable types: 37 continuous, 1652 integer (1652 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 15060 rows and 29 columns
Presolve time: 0.57s
Presolved: 46320 rows, 1660 columns, 140338 nonzeros
Variable types: 0 continuous, 1660 integer (1623 binary)
Found heuristic solution: objective 8.0000000
Root relaxation presolved: 28670 rows, 19310 columns, 105038 nonzeros


Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
    5342    3.4999834e+01   2.692677e+00   0.000000e+00      5s
    5383    3.5000000e+01   0.000000e+00   0.000000e+00      5s
    5383    3.5000000e+01   0.000000e+00   0.000000e+00      5s

Root relaxation: objective 3.500000e+01, 5383 iterations, 4.31 seconds (3.17 work units)

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

     0     0   35.00000    0  329    8.00000   35.00000   337%     -    8s
H    0     0                       9.0000000   35.00000   289%     -   10s
     0     0   35.00000    0  667    9.00000   35.00000   289%     -   18s
     0     0   35.00000    0  657    9.00000   35.00000   289%     -   18s
     0     0   35.00000    0  397    9.00000   35.00000   289%     -   29s
     0     0   35.00000    0  373    9.00000   35.00000   289%     -   29s
     0     0   35.00000    0  379    9.00000   35.00000   289%     -   39s
     0     0   35.00000    0  372    9.00000   35.00000   289%     -   39s
     0     0   35.00000    0  417    9.00000   35.00000   289%     -   50s

Cutting planes:
  Cover: 27
  Clique: 12
  MIR: 136
  StrongCG: 1
  GUB cover: 7
  Zero half: 46
  RLT: 53
  BQP: 1

Explored 1 nodes (43930 simplex iterations) in 50.07 seconds (31.46 work units)
Thread count was 8 (of 8 available processors)

Solution count 2: 9 8 

Time limit reached
Best objective 9.000000000000e+00, best bound 3.500000000000e+01, gap 288.8889%

Wrote result file './lp_solutions/grafo3296.40.sol'


Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Fri Nov 22 04:05:58 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo3296.40.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/grafo3296.40.lp
Reading time = 0.10 seconds
: 61380 rows, 1689 columns, 185225 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 61380 rows, 1689 columns and 185225 nonzeros
Model fingerprint: 0xb77329fb
Variable types: 37 continuous, 1652 integer (1652 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 15060 rows and 29 columns
Presolve time: 0.41s
Presolved: 46320 rows, 1660 columns, 140338 nonzeros
Variable types: 0 continuous, 1660 integer (1623 binary)
Found heuristic solution: objective 8.0000000
Root relaxation presolved: 28670 rows, 19310 columns, 105038 nonzeros


Root relaxation: objective 3.500000e+01, 5383 iterations, 3.05 seconds (3.17 work units)
Total elapsed time = 5.37s (DegenMoves)

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

     0     0   35.00000    0  329    8.00000   35.00000   337%     -    6s
H    0     0                       9.0000000   35.00000   289%     -    6s
     0     0   35.00000    0  667    9.00000   35.00000   289%     -   12s
     0     0   35.00000    0  657    9.00000   35.00000   289%     -   12s
     0     0   35.00000    0  397    9.00000   35.00000   289%     -   19s
     0     0   35.00000    0  373    9.00000   35.00000   289%     -   19s
     0     0   35.00000    0  379    9.00000   35.00000   289%     -   26s
     0     0   35.00000    0  372    9.00000   35.00000   289%     -   26s
H    0     0                      10.0000000   35.00000   250%     -   33s
     0     0   35.00000    0  288   10.00000   35.00000   250%     -   33s
     0     0   35.00000    0  440   10.00000   35.00000   250%     -   34s
H    0     0                      11.0000000   35.00000   218%     -   40s
     0     0   35.00000    0  388   11.00000   35.00000   218%     -   40s
     0     0   35.00000    0  407   11.00000   35.00000   218%     -   41s
     0     0   35.00000    0  454   11.00000   35.00000   218%     -   50s

Cutting planes:
  Cover: 29
  Clique: 14
  MIR: 140
  StrongCG: 2
  GUB cover: 4
  Zero half: 31
  RLT: 72
  BQP: 2

Explored 1 nodes (66702 simplex iterations) in 50.05 seconds (49.32 work units)
Thread count was 8 (of 8 available processors)

Solution count 4: 11 10 9 8 

Time limit reached
Best objective 1.100000000000e+01, best bound 3.500000000000e+01, gap 218.1818%

Wrote result file './lp_solutions/grafo3296.40.sol'

