
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Thu Nov 14 08:19:10 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo5621.43.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/grafo5621.43.lp
Reading time = 0.20 seconds
: 99993 rows, 2270 columns, 301794 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 99993 rows, 2270 columns and 301794 nonzeros
Model fingerprint: 0xbccfb9ad
Variable types: 46 continuous, 2224 integer (2224 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 25441 rows and 30 columns
Presolve time: 1.23s
Presolved: 74552 rows, 2240 columns, 225775 nonzeros
Variable types: 0 continuous, 2240 integer (2194 binary)
Root relaxation presolved: 2240 rows, 76792 columns, 228015 nonzeros


Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
   14511    4.4819812e+01   0.000000e+00   6.739448e+04      5s
   33750    4.4786112e+01   0.000000e+00   2.318616e+03     10s
   41932    4.5000000e+01   0.000000e+00   0.000000e+00     13s
   41932    4.5000000e+01   0.000000e+00   0.000000e+00     13s

Root relaxation: objective 4.500000e+01, 41932 iterations, 11.48 seconds (5.84 work units)
Total elapsed time = 24.79s (DegenMoves)
Total elapsed time = 28.11s (DegenMoves)
Total elapsed time = 30.63s (DegenMoves)

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

     0     0   45.00000    0  634          -   45.00000      -     -   31s
H    0     0                      10.0000000   45.00000   350%     -   31s
H    0     0                      12.0000000   45.00000   275%     -   32s
     0     0          -    0        12.00000   45.00000   275%     -   50s

Cutting planes:
  Gomory: 34
  Cover: 39
  Clique: 35
  MIR: 114
  StrongCG: 2
  GUB cover: 8
  Zero half: 81
  RLT: 75
  BQP: 8

Explored 1 nodes (63613 simplex iterations) in 50.11 seconds (34.97 work units)
Thread count was 8 (of 8 available processors)

Solution count 2: 12 10 

Time limit reached
Best objective 1.200000000000e+01, best bound 4.500000000000e+01, gap 275.0000%

Wrote result file './lp_solutions/grafo5621.43.sol'


Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Fri Nov 22 05:56:36 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo5621.43.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/grafo5621.43.lp
Reading time = 0.16 seconds
: 99993 rows, 2270 columns, 301794 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 99993 rows, 2270 columns and 301794 nonzeros
Model fingerprint: 0xbccfb9ad
Variable types: 46 continuous, 2224 integer (2224 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 25441 rows and 30 columns
Presolve time: 0.71s
Presolved: 74552 rows, 2240 columns, 225775 nonzeros
Variable types: 0 continuous, 2240 integer (2194 binary)
Root relaxation presolved: 2240 rows, 76792 columns, 228015 nonzeros


Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
   24312    4.4792277e+01   0.000000e+00   2.477498e+04      5s
   41932    4.5000000e+01   0.000000e+00   0.000000e+00      8s
   41932    4.5000000e+01   0.000000e+00   0.000000e+00      8s

Root relaxation: objective 4.500000e+01, 41932 iterations, 7.58 seconds (5.84 work units)
Total elapsed time = 17.75s (DegenMoves)
Total elapsed time = 20.26s (DegenMoves)

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

     0     0   45.00000    0  634          -   45.00000      -     -   22s
H    0     0                      10.0000000   45.00000   350%     -   22s
H    0     0                      12.0000000   45.00000   275%     -   22s
     0     0   45.00000    0  849   12.00000   45.00000   275%     -   37s
H    0     0                      13.0000000   45.00000   246%     -   38s
     0     0   45.00000    0  785   13.00000   45.00000   246%     -   39s
     0     0          -    0        13.00000   45.00000   246%     -   50s

Cutting planes:
  Gomory: 4
  Lift-and-project: 32
  Cover: 10
  Clique: 28
  MIR: 93
  StrongCG: 1
  GUB cover: 1
  Zero half: 34
  RLT: 57
  BQP: 4

Explored 1 nodes (66963 simplex iterations) in 50.07 seconds (45.94 work units)
Thread count was 8 (of 8 available processors)

Solution count 3: 13 12 10 

Time limit reached
Best objective 1.300000000000e+01, best bound 4.500000000000e+01, gap 246.1538%

Wrote result file './lp_solutions/grafo5621.43.sol'

