
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Wed Nov 13 07:24:44 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo6534.48.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/grafo6534.48.lp
Reading time = 0.25 seconds
: 90668 rows, 2799 columns, 274318 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 90668 rows, 2799 columns and 274318 nonzeros
Model fingerprint: 0xe7fb2197
Variable types: 53 continuous, 2746 integer (2746 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 5985 rows and 0 columns
Presolve time: 0.78s
Presolved: 84683 rows, 2799 columns, 256693 nonzeros
Variable types: 0 continuous, 2799 integer (2746 binary)
Found heuristic solution: objective 7.0000000
Root relaxation presolved: 2754 rows, 87437 columns, 259492 nonzeros


Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
   15399    4.7928975e+01   0.000000e+00   7.599839e+03      5s
   31278    4.7910666e+01   0.000000e+00   2.964411e+03     10s
   44598    4.7908429e+01   0.000000e+00   1.502357e+03     15s
   47388    4.8000000e+01   0.000000e+00   0.000000e+00     16s
   47388    4.8000000e+01   0.000000e+00   0.000000e+00     16s
   47388    4.8000000e+01   0.000000e+00   0.000000e+00     16s

Root relaxation: objective 4.800000e+01, 47388 iterations, 15.45 seconds (9.18 work units)
Total elapsed time = 47.50s (DegenMoves)

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

     0     0   48.00000    0 1140    7.00000   48.00000   586%     -   50s

Explored 1 nodes (66146 simplex iterations) in 50.03 seconds (33.95 work units)
Thread count was 8 (of 8 available processors)

Solution count 2: 7 1 

Time limit reached
Best objective 7.000000000000e+00, best bound 4.800000000000e+01, gap 585.7143%

Wrote result file './lp_solutions/grafo6534.48.sol'


Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Mon Nov 18 05:19:39 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo6534.48.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/grafo6534.48.lp
Reading time = 0.20 seconds
: 90668 rows, 2799 columns, 274318 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 90668 rows, 2799 columns and 274318 nonzeros
Model fingerprint: 0xe7fb2197
Variable types: 53 continuous, 2746 integer (2746 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 5985 rows and 0 columns
Presolve time: 0.71s
Presolved: 84683 rows, 2799 columns, 256693 nonzeros
Variable types: 0 continuous, 2799 integer (2746 binary)
Found heuristic solution: objective 7.0000000
Root relaxation presolved: 2754 rows, 87437 columns, 259492 nonzeros


Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
   16119    4.7927373e+01   0.000000e+00   1.332252e+04      5s
   31278    4.7910666e+01   0.000000e+00   2.964411e+03     10s
   44238    4.7908447e+01   0.000000e+00   1.439687e+02     15s
   47388    4.8000000e+01   0.000000e+00   0.000000e+00     16s
   47388    4.8000000e+01   0.000000e+00   0.000000e+00     16s
   47388    4.8000000e+01   0.000000e+00   0.000000e+00     16s

Root relaxation: objective 4.800000e+01, 47388 iterations, 15.38 seconds (9.18 work units)
Total elapsed time = 48.66s (DegenMoves)

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

     0     0   48.00000    0 1140    7.00000   48.00000   586%     -   50s

Explored 1 nodes (65466 simplex iterations) in 50.05 seconds (32.62 work units)
Thread count was 8 (of 8 available processors)

Solution count 2: 7 1 

Time limit reached
Best objective 7.000000000000e+00, best bound 4.800000000000e+01, gap 585.7143%

Wrote result file './lp_solutions/grafo6534.48.sol'


Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Wed Nov 20 06:22:28 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo6534.48.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/grafo6534.48.lp
Reading time = 0.16 seconds
: 90668 rows, 2799 columns, 274318 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 90668 rows, 2799 columns and 274318 nonzeros
Model fingerprint: 0xe7fb2197
Variable types: 53 continuous, 2746 integer (2746 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 5985 rows and 0 columns
Presolve time: 0.59s
Presolved: 84683 rows, 2799 columns, 256693 nonzeros
Variable types: 0 continuous, 2799 integer (2746 binary)
Found heuristic solution: objective 7.0000000
Root relaxation presolved: 2754 rows, 87437 columns, 259492 nonzeros


Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
   18639    4.7922072e+01   0.000000e+00   3.267945e+04      5s
   35598    4.7909395e+01   0.000000e+00   2.928023e+03     10s
   47388    4.8000000e+01   0.000000e+00   0.000000e+00     14s
   47388    4.8000000e+01   0.000000e+00   0.000000e+00     14s
   47388    4.8000000e+01   0.000000e+00   0.000000e+00     14s

Root relaxation: objective 4.800000e+01, 47388 iterations, 13.35 seconds (9.18 work units)
Total elapsed time = 43.00s (DegenMoves)

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

     0     0   48.00000    0 1140    7.00000   48.00000   586%     -   50s

Explored 1 nodes (69552 simplex iterations) in 50.04 seconds (41.18 work units)
Thread count was 8 (of 8 available processors)

Solution count 2: 7 1 

Time limit reached
Best objective 7.000000000000e+00, best bound 4.800000000000e+01, gap 585.7143%

Wrote result file './lp_solutions/grafo6534.48.sol'

