
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Thu Nov 14 08:30:04 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo5686.37.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/grafo5686.37.lp
Reading time = 0.12 seconds
: 52748 rows, 1728 columns, 159527 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 52748 rows, 1728 columns and 159527 nonzeros
Model fingerprint: 0x3c2fea64
Variable types: 40 continuous, 1688 integer (1688 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 10559 rows and 25 columns
Presolve time: 0.53s
Presolved: 42189 rows, 1703 columns, 128212 nonzeros
Variable types: 0 continuous, 1703 integer (1663 binary)
Root relaxation presolved: 24539 rows, 19353 columns, 92912 nonzeros


Root relaxation: objective 4.300000e+01, 3303 iterations, 2.43 seconds (1.41 work units)
Total elapsed time = 7.40s (DegenMoves)
Total elapsed time = 11.66s (DegenMoves)

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

     0     0   43.00000    0  473          -   43.00000      -     -   13s
H    0     0                       5.0000000   43.00000   760%     -   13s
H    0     0                       7.0000000   43.00000   514%     -   13s
     0     0   43.00000    0  696    7.00000   43.00000   514%     -   22s
H    0     0                       8.0000000   43.00000   437%     -   27s
     0     0   43.00000    0  628    8.00000   43.00000   437%     -   27s
     0     0   43.00000    0  537    8.00000   43.00000   437%     -   45s
     0     0   43.00000    0  559    8.00000   43.00000   437%     -   47s
     0     0          -    0         8.00000   43.00000   437%     -   50s

Cutting planes:
  Gomory: 1
  Lift-and-project: 1
  Cover: 35
  Clique: 4
  MIR: 175
  StrongCG: 3
  GUB cover: 3
  Zero half: 46
  RLT: 50

Explored 1 nodes (39443 simplex iterations) in 50.07 seconds (30.83 work units)
Thread count was 8 (of 8 available processors)

Solution count 3: 8 7 5 

Time limit reached
Best objective 8.000000000000e+00, best bound 4.300000000000e+01, gap 437.5000%

Wrote result file './lp_solutions/grafo5686.37.sol'


Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Thu Nov 21 08:38:37 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo5686.37.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/grafo5686.37.lp
Reading time = 0.09 seconds
: 52748 rows, 1728 columns, 159527 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 52748 rows, 1728 columns and 159527 nonzeros
Model fingerprint: 0x3c2fea64
Variable types: 40 continuous, 1688 integer (1688 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 10559 rows and 25 columns
Presolve time: 0.36s
Presolved: 42189 rows, 1703 columns, 128212 nonzeros
Variable types: 0 continuous, 1703 integer (1663 binary)
Root relaxation presolved: 24539 rows, 19353 columns, 92912 nonzeros


Root relaxation: objective 4.300000e+01, 3303 iterations, 1.50 seconds (1.41 work units)
Total elapsed time = 5.17s (DegenMoves)

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

     0     0   43.00000    0  473          -   43.00000      -     -    9s
H    0     0                       5.0000000   43.00000   760%     -    9s
H    0     0                       7.0000000   43.00000   514%     -    9s
     0     0   43.00000    0  696    7.00000   43.00000   514%     -   15s
H    0     0                       8.0000000   43.00000   437%     -   18s
     0     0   43.00000    0  628    8.00000   43.00000   437%     -   18s
     0     0   43.00000    0  537    8.00000   43.00000   437%     -   31s
     0     0   43.00000    0  559    8.00000   43.00000   437%     -   32s
     0     0   43.00000    0  615    8.00000   43.00000   437%     -   50s

Cutting planes:
  Gomory: 1
  Lift-and-project: 1
  Cover: 35
  Clique: 4
  MIR: 175
  StrongCG: 3
  GUB cover: 3
  Zero half: 46
  RLT: 50

Explored 1 nodes (60113 simplex iterations) in 50.07 seconds (48.21 work units)
Thread count was 8 (of 8 available processors)

Solution count 3: 8 7 5 

Time limit reached
Best objective 8.000000000000e+00, best bound 4.300000000000e+01, gap 437.5000%

Wrote result file './lp_solutions/grafo5686.37.sol'

