
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Mon Nov 18 21:50:04 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo2205.38.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/grafo2205.38.lp
Reading time = 0.21 seconds
: 121098 rows, 2556 columns, 365759 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 121098 rows, 2556 columns and 365759 nonzeros
Model fingerprint: 0xa97f4497
Variable types: 53 continuous, 2503 integer (2503 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 1.0000000
Presolve removed 32857 rows and 18 columns
Presolve time: 0.66s
Presolved: 88241 rows, 2538 columns, 267772 nonzeros
Variable types: 0 continuous, 2538 integer (2485 binary)
Found heuristic solution: objective 10.0000000
Root relaxation presolved: 2532 rows, 90773 columns, 270310 nonzeros


Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
   28342    5.9950530e+01   0.000000e+00   6.034222e+04      5s
   55242    5.9932474e+01   0.000000e+00   2.904379e+03     10s
   76535    6.0000000e+01   0.000000e+00   0.000000e+00     14s
   76535    6.0000000e+01   0.000000e+00   0.000000e+00     14s
   76535    6.0000000e+01   0.000000e+00   0.000000e+00     14s

Root relaxation: objective 6.000000e+01, 76535 iterations, 13.28 seconds (13.40 work units)
Total elapsed time = 27.33s (DegenMoves)

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

     0     0   60.00000    0  606   10.00000   60.00000   500%     -   29s
     0     0   60.00000    0  922   10.00000   60.00000   500%     -   47s
     0     0   60.00000    0  895   10.00000   60.00000   500%     -   49s

Cutting planes:
  Gomory: 1
  Cover: 3
  Clique: 12
  MIR: 85
  Zero half: 5
  RLT: 22

Explored 1 nodes (106116 simplex iterations) in 50.02 seconds (61.22 work units)
Thread count was 8 (of 8 available processors)

Solution count 2: 10 1 

Time limit reached
Best objective 1.000000000000e+01, best bound 6.000000000000e+01, gap 500.0000%

Wrote result file './lp_solutions/grafo2205.38.sol'


Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Mon Nov 25 02:33:53 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo2205.38.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/grafo2205.38.lp
Reading time = 0.20 seconds
: 121098 rows, 2556 columns, 365759 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 121098 rows, 2556 columns and 365759 nonzeros
Model fingerprint: 0xa97f4497
Variable types: 53 continuous, 2503 integer (2503 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 1.0000000
Presolve removed 32857 rows and 18 columns
Presolve time: 0.82s
Presolved: 88241 rows, 2538 columns, 267772 nonzeros
Variable types: 0 continuous, 2538 integer (2485 binary)
Found heuristic solution: objective 10.0000000
Root relaxation presolved: 2532 rows, 90773 columns, 270310 nonzeros


Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
   22461    5.9960743e+01   0.000000e+00   7.181086e+04      5s
   43896    5.9936859e+01   0.000000e+00   1.619920e+05     10s
   64907    5.9930999e+01   0.000000e+00   7.027078e+02     15s
   76535    6.0000000e+01   0.000000e+00   0.000000e+00     18s
   76535    6.0000000e+01   0.000000e+00   0.000000e+00     18s
   76535    6.0000000e+01   0.000000e+00   0.000000e+00     18s

Root relaxation: objective 6.000000e+01, 76535 iterations, 16.90 seconds (13.40 work units)
Total elapsed time = 34.39s (DegenMoves)
Total elapsed time = 36.21s (DegenMoves)

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

     0     0   60.00000    0  606   10.00000   60.00000   500%     -   37s
     0     0          -    0        10.00000   60.00000   500%     -   50s

Cutting planes:
  Gomory: 35
  Cover: 61
  Clique: 19
  MIR: 237
  GUB cover: 2
  Zero half: 87
  RLT: 44
  BQP: 2

Explored 1 nodes (99100 simplex iterations) in 50.02 seconds (46.98 work units)
Thread count was 8 (of 8 available processors)

Solution count 2: 10 1 

Time limit reached
Best objective 1.000000000000e+01, best bound 6.000000000000e+01, gap 500.0000%

Wrote result file './lp_solutions/grafo2205.38.sol'

