
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Thu Nov 14 07:33:04 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo5338.46.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/grafo5338.46.lp
Reading time = 0.25 seconds
: 127811 rows, 3129 columns, 386440 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 127811 rows, 3129 columns and 386440 nonzeros
Model fingerprint: 0xb24ab3b8
Variable types: 59 continuous, 3070 integer (3070 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, 6e+01]
Presolve removed 19097 rows and 1 columns
Presolve time: 1.18s
Presolved: 108714 rows, 3128 columns, 329627 nonzeros
Variable types: 0 continuous, 3128 integer (3069 binary)
Found heuristic solution: objective 8.0000000
Root relaxation presolved: 3080 rows, 111794 columns, 332755 nonzeros


Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
   12954    5.4959886e+01   0.000000e+00   1.121806e+05      5s
   28021    5.4925213e+01   0.000000e+00   8.307138e+03     10s
   40789    5.4916073e+01   0.000000e+00   1.005275e+04     15s
   53101    5.4910881e+01   0.000000e+00   3.852977e+03     20s
   64501    5.4907894e+01   0.000000e+00   1.407117e+04     25s
   74989    5.4906474e+01   0.000000e+00   4.177933e+04     30s
   85933    5.4905881e+01   0.000000e+00   1.008172e+03     35s
   96877    5.4905739e+01   0.000000e+00   4.187334e+01     40s
   99648    5.5000000e+01   0.000000e+00   0.000000e+00     42s
   99648    5.5000000e+01   0.000000e+00   0.000000e+00     42s
   99648    5.5000000e+01   0.000000e+00   0.000000e+00     42s

Root relaxation: objective 5.500000e+01, 99648 iterations, 40.06 seconds (23.60 work units)

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

     0     0   55.00000    0 1769    8.00000   55.00000   587%     -   50s

Explored 1 nodes (102335 simplex iterations) in 50.04 seconds (31.89 work units)
Thread count was 8 (of 8 available processors)

Solution count 1: 8 

Time limit reached
Best objective 8.000000000000e+00, best bound 5.500000000000e+01, gap 587.5000%

Wrote result file './lp_solutions/grafo5338.46.sol'


Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Fri Nov 22 06:53:36 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo5338.46.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/grafo5338.46.lp
Reading time = 0.20 seconds
: 127811 rows, 3129 columns, 386440 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 127811 rows, 3129 columns and 386440 nonzeros
Model fingerprint: 0xb24ab3b8
Variable types: 59 continuous, 3070 integer (3070 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, 6e+01]
Presolve removed 19097 rows and 1 columns
Presolve time: 0.73s
Presolved: 108714 rows, 3128 columns, 329627 nonzeros
Variable types: 0 continuous, 3128 integer (3069 binary)
Found heuristic solution: objective 8.0000000
Root relaxation presolved: 3080 rows, 111794 columns, 332755 nonzeros


Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
   19357    5.4940590e+01   0.000000e+00   4.621407e+04      5s
   37597    5.4918044e+01   0.000000e+00   3.467542e+04     10s
   54013    5.4910536e+01   0.000000e+00   2.868196e+03     15s
   69973    5.4907065e+01   0.000000e+00   8.009093e+03     20s
   85477    5.4905895e+01   0.000000e+00   7.797657e+02     25s
   99648    5.5000000e+01   0.000000e+00   0.000000e+00     30s
   99648    5.5000000e+01   0.000000e+00   0.000000e+00     30s
   99648    5.5000000e+01   0.000000e+00   0.000000e+00     30s

Root relaxation: objective 5.500000e+01, 99648 iterations, 28.63 seconds (23.60 work units)

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

     0     0   55.00000    0 1769    8.00000   55.00000   587%     -   50s

Explored 1 nodes (108819 simplex iterations) in 50.04 seconds (44.02 work units)
Thread count was 8 (of 8 available processors)

Solution count 1: 8 

Time limit reached
Best objective 8.000000000000e+00, best bound 5.500000000000e+01, gap 587.5000%

Wrote result file './lp_solutions/grafo5338.46.sol'

