
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Thu Nov 14 09:07:48 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo5878.44.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/grafo5878.44.lp
Reading time = 0.32 seconds
: 115126 rows, 2628 columns, 347721 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 115126 rows, 2628 columns and 347721 nonzeros
Model fingerprint: 0x8b8b1f20
Variable types: 52 continuous, 2576 integer (2576 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 25375 rows and 28 columns
Presolve time: 1.14s
Presolved: 89751 rows, 2600 columns, 272002 nonzeros
Variable types: 0 continuous, 2600 integer (2548 binary)
Found heuristic solution: objective 7.0000000
Root relaxation presolved: 2594 rows, 92345 columns, 274602 nonzeros


Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
   13778    4.9987933e+01   0.000000e+00   9.654614e+04      5s
   29197    4.7958602e+01   0.000000e+00   3.574187e+04     10s
   44485    4.7947328e+01   0.000000e+00   2.471668e+04     15s
   59675    4.7942054e+01   0.000000e+00   2.513603e+03     20s
   74343    4.7939282e+01   0.000000e+00   4.272502e+03     25s
   89070    4.7937868e+01   0.000000e+00   1.777915e+03     30s
  104540    4.7937006e+01   0.000000e+00   1.015134e+03     35s
  118410    4.7936479e+01   0.000000e+00   2.100237e+02     40s
  121425    4.8000000e+01   0.000000e+00   0.000000e+00     41s
  121425    4.8000000e+01   0.000000e+00   0.000000e+00     41s
  121425    4.8000000e+01   0.000000e+00   0.000000e+00     41s

Root relaxation: objective 4.800000e+01, 121425 iterations, 40.03 seconds (24.06 work units)

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

     0     0   48.00000    0 1758    7.00000   48.00000   586%     -   50s

Explored 1 nodes (125273 simplex iterations) in 50.03 seconds (32.02 work units)
Thread count was 8 (of 8 available processors)

Solution count 1: 7 

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

Wrote result file './lp_solutions/grafo5878.44.sol'


Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Fri Nov 22 06:18:24 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo5878.44.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/grafo5878.44.lp
Reading time = 0.19 seconds
: 115126 rows, 2628 columns, 347721 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 115126 rows, 2628 columns and 347721 nonzeros
Model fingerprint: 0x8b8b1f20
Variable types: 52 continuous, 2576 integer (2576 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 25375 rows and 28 columns
Presolve time: 0.77s
Presolved: 89751 rows, 2600 columns, 272002 nonzeros
Variable types: 0 continuous, 2600 integer (2548 binary)
Found heuristic solution: objective 7.0000000
Root relaxation presolved: 2594 rows, 92345 columns, 274602 nonzeros


Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
   19995    4.7969570e+01   0.000000e+00   9.105176e+04      5s
   40588    4.7949540e+01   0.000000e+00   1.677941e+04     10s
   61221    4.7941746e+01   0.000000e+00   1.059291e+04     15s
   80957    4.7938593e+01   0.000000e+00   4.420334e+03     20s
  101075    4.7937153e+01   0.000000e+00   8.355156e+02     25s
  119950    4.7936464e+01   0.000000e+00   1.057928e+02     30s
  121425    4.8000000e+01   0.000000e+00   0.000000e+00     30s
  121425    4.8000000e+01   0.000000e+00   0.000000e+00     30s
  121425    4.8000000e+01   0.000000e+00   0.000000e+00     31s

Root relaxation: objective 4.800000e+01, 121425 iterations, 29.54 seconds (24.06 work units)
Total elapsed time = 46.60s (DegenMoves)

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

     0     0   48.00000    0  482    7.00000   48.00000   586%     -   49s

Cutting planes:
  Cover: 38
  Clique: 21
  MIR: 206
  StrongCG: 1
  GUB cover: 4

Explored 1 nodes (136942 simplex iterations) in 50.03 seconds (45.69 work units)
Thread count was 8 (of 8 available processors)

Solution count 1: 7 

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

Wrote result file './lp_solutions/grafo5878.44.sol'

