
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Thu Nov 14 08:53:33 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo5812.46.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/grafo5812.46.lp
Reading time = 0.18 seconds
: 92629 rows, 2754 columns, 280297 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 92629 rows, 2754 columns and 280297 nonzeros
Model fingerprint: 0x70660727
Variable types: 53 continuous, 2701 integer (2701 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 9446 rows and 33 columns
Presolve time: 0.91s
Presolved: 83183 rows, 2721 columns, 252422 nonzeros
Variable types: 0 continuous, 2721 integer (2668 binary)
Root relaxation presolved: 2718 rows, 85901 columns, 255143 nonzeros


Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
   14392    4.7923932e+01   0.000000e+00   4.658338e+04      5s
   30232    4.7904765e+01   0.000000e+00   2.588364e+04     10s
   44632    4.7901160e+01   0.000000e+00   2.183337e+02     15s
   46450    4.8000000e+01   0.000000e+00   0.000000e+00     16s
   46450    4.8000000e+01   0.000000e+00   0.000000e+00     16s
   46450    4.8000000e+01   0.000000e+00   0.000000e+00     16s

Root relaxation: objective 4.800000e+01, 46450 iterations, 14.67 seconds (8.75 work units)
Total elapsed time = 35.07s (DegenMoves)
Total elapsed time = 40.41s (DegenMoves)

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

     0     0   48.00000    0  722          -   48.00000      -     -   40s
H    0     0                       8.0000000   48.00000   500%     -   44s
     0     0          -    0         8.00000   48.00000   500%     -   50s

Cutting planes:
  Gomory: 32
  Cover: 25
  Clique: 3
  MIR: 93
  GUB cover: 4
  Zero half: 19
  RLT: 17
  BQP: 2

Explored 1 nodes (68639 simplex iterations) in 50.03 seconds (36.33 work units)
Thread count was 8 (of 8 available processors)

Solution count 1: 8 

Time limit reached
Best objective 8.000000000000e+00, best bound 4.800000000000e+01, gap 500.0000%

Wrote result file './lp_solutions/grafo5812.46.sol'


Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Fri Nov 22 06:55:17 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo5812.46.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/grafo5812.46.lp
Reading time = 0.14 seconds
: 92629 rows, 2754 columns, 280297 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 92629 rows, 2754 columns and 280297 nonzeros
Model fingerprint: 0x70660727
Variable types: 53 continuous, 2701 integer (2701 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 9446 rows and 33 columns
Presolve time: 0.62s
Presolved: 83183 rows, 2721 columns, 252422 nonzeros
Variable types: 0 continuous, 2721 integer (2668 binary)
Root relaxation presolved: 2718 rows, 85901 columns, 255143 nonzeros


Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
   21952    4.7911068e+01   0.000000e+00   3.169122e+04      5s
   42472    4.7901259e+01   0.000000e+00   6.379835e+02     10s
   46450    4.8000000e+01   0.000000e+00   0.000000e+00     11s
   46450    4.8000000e+01   0.000000e+00   0.000000e+00     11s
   46450    4.8000000e+01   0.000000e+00   0.000000e+00     11s

Root relaxation: objective 4.800000e+01, 46450 iterations, 10.35 seconds (8.75 work units)
Total elapsed time = 26.55s (DegenMoves)
Total elapsed time = 30.55s (DegenMoves)

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

     0     0   48.00000    0  722          -   48.00000      -     -   30s
H    0     0                       8.0000000   48.00000   500%     -   33s
     0     0   48.00000    0  917    8.00000   48.00000   500%     -   44s
H    0     0                      14.0000000   48.00000   243%     -   44s
     0     0   48.00000    0  903   14.00000   48.00000   243%     -   47s

Cutting planes:
  Gomory: 1
  Lift-and-project: 17
  Cover: 25
  Clique: 3
  MIR: 139
  GUB cover: 1
  Zero half: 64
  RLT: 22
  BQP: 2

Explored 1 nodes (75289 simplex iterations) in 50.16 seconds (48.20 work units)
Thread count was 8 (of 8 available processors)

Solution count 2: 14 8 

Time limit reached
Best objective 1.400000000000e+01, best bound 4.800000000000e+01, gap 242.8571%

Wrote result file './lp_solutions/grafo5812.46.sol'

