
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Thu Nov 14 06:27:39 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo3710.43.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/grafo3710.43.lp
Reading time = 0.16 seconds
: 76637 rows, 2139 columns, 231553 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 76637 rows, 2139 columns and 231553 nonzeros
Model fingerprint: 0x87f3507f
Variable types: 44 continuous, 2095 integer (2095 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 15130 rows and 22 columns
Presolve time: 0.84s
Presolved: 61507 rows, 2117 columns, 186491 nonzeros
Variable types: 0 continuous, 2117 integer (2073 binary)
Root relaxation presolved: 2117 rows, 63624 columns, 188608 nonzeros


Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
   17488    3.9793535e+01   0.000000e+00   1.269376e+05      5s
   36414    4.0000000e+01   0.000000e+00   0.000000e+00     10s
   36414    4.0000000e+01   0.000000e+00   0.000000e+00     10s

Root relaxation: objective 4.000000e+01, 36414 iterations, 8.78 seconds (4.86 work units)
Total elapsed time = 10.04s (DegenMoves)
Total elapsed time = 19.48s (DegenMoves)
Total elapsed time = 21.12s (DegenMoves)

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

     0     0   40.00000    0  457          -   40.00000      -     -   25s
H    0     0                       5.0000000   40.00000   700%     -   28s
     0     0   40.00000    0  709    5.00000   40.00000   700%     -   39s
H    0     0                       8.0000000   40.00000   400%     -   40s
     0     0   40.00000    0  702    8.00000   40.00000   400%     -   42s
     0     0   40.00000    0  641    8.00000   40.00000   400%     -   50s

Cutting planes:
  Gomory: 2
  Lift-and-project: 4
  Cover: 7
  Clique: 13
  MIR: 113
  StrongCG: 1
  GUB cover: 3
  Zero half: 74
  RLT: 62
  BQP: 2

Explored 1 nodes (62164 simplex iterations) in 50.09 seconds (32.33 work units)
Thread count was 8 (of 8 available processors)

Solution count 2: 8 5 

Time limit reached
Best objective 8.000000000000e+00, best bound 4.000000000000e+01, gap 400.0000%

Wrote result file './lp_solutions/grafo3710.43.sol'


Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Fri Nov 22 05:53:15 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo3710.43.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/grafo3710.43.lp
Reading time = 0.12 seconds
: 76637 rows, 2139 columns, 231553 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 76637 rows, 2139 columns and 231553 nonzeros
Model fingerprint: 0x87f3507f
Variable types: 44 continuous, 2095 integer (2095 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 15130 rows and 22 columns
Presolve time: 0.51s
Presolved: 61507 rows, 2117 columns, 186491 nonzeros
Variable types: 0 continuous, 2117 integer (2073 binary)
Root relaxation presolved: 2117 rows, 63624 columns, 188608 nonzeros


Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
   27088    3.9783361e+01   0.000000e+00   5.299848e+03      5s
   36414    4.0000000e+01   0.000000e+00   0.000000e+00      7s
   36414    4.0000000e+01   0.000000e+00   0.000000e+00      7s

Root relaxation: objective 4.000000e+01, 36414 iterations, 6.05 seconds (4.86 work units)
Total elapsed time = 14.23s (DegenMoves)
Total elapsed time = 15.40s (DegenMoves)

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

     0     0   40.00000    0  457          -   40.00000      -     -   18s
H    0     0                       5.0000000   40.00000   700%     -   20s
     0     0   40.00000    0  709    5.00000   40.00000   700%     -   28s
H    0     0                       8.0000000   40.00000   400%     -   28s
     0     0   40.00000    0  702    8.00000   40.00000   400%     -   29s
     0     0   40.00000    0  587    8.00000   40.00000   400%     -   48s
H    0     0                      10.0000000   40.00000   300%     -   48s
     0     0          -    0        10.00000   40.00000   300%     -   50s

Cutting planes:
  Cover: 2
  Clique: 15
  MIR: 44
  StrongCG: 2
  GUB cover: 1
  Zero half: 6
  RLT: 33
  Relax-and-lift: 1
  BQP: 2

Explored 1 nodes (77249 simplex iterations) in 50.06 seconds (48.47 work units)
Thread count was 8 (of 8 available processors)

Solution count 3: 10 8 5 

Time limit reached
Best objective 1.000000000000e+01, best bound 4.000000000000e+01, gap 300.0000%

Wrote result file './lp_solutions/grafo3710.43.sol'

