
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Thu Nov 14 04:59:34 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo2535.48.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/grafo2535.48.lp
Reading time = 0.18 seconds
: 98018 rows, 2821 columns, 296418 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 98018 rows, 2821 columns and 296418 nonzeros
Model fingerprint: 0xa6c53b01
Variable types: 53 continuous, 2768 integer (2768 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]
Found heuristic solution: objective 3.0000000
Presolve removed 10014 rows and 1 columns
Presolve time: 0.86s
Presolved: 88004 rows, 2820 columns, 266723 nonzeros
Variable types: 0 continuous, 2820 integer (2767 binary)
Found heuristic solution: objective 9.0000000
Root relaxation presolved: 2784 rows, 90788 columns, 269543 nonzeros


Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
   15671    4.9942443e+01   0.000000e+00   1.878114e+05      5s
   31511    4.9924168e+01   0.000000e+00   1.688091e+04     10s
   45551    4.9920741e+01   0.000000e+00   4.048719e+03     15s
   56571    5.0000000e+01   0.000000e+00   0.000000e+00     19s
   56571    5.0000000e+01   0.000000e+00   0.000000e+00     19s
   56571    5.0000000e+01   0.000000e+00   0.000000e+00     19s

Root relaxation: objective 5.000000e+01, 56571 iterations, 18.02 seconds (11.63 work units)
Total elapsed time = 35.14s (DegenMoves)
Total elapsed time = 40.57s (DegenMoves)

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

     0     0   50.00000    0  511    9.00000   50.00000   456%     -   43s
H    0     0                      12.0000000   50.00000   317%     -   43s
     0     0          -    0        12.00000   50.00000   317%     -   50s

Cutting planes:
  Gomory: 44
  Cover: 39
  Clique: 2
  MIR: 187
  Zero half: 82
  RLT: 50

Explored 1 nodes (78254 simplex iterations) in 50.03 seconds (38.20 work units)
Thread count was 8 (of 8 available processors)

Solution count 3: 12 9 3 

Time limit reached
Best objective 1.200000000000e+01, best bound 5.000000000000e+01, gap 316.6667%

Wrote result file './lp_solutions/grafo2535.48.sol'


Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Fri Nov 22 07:28:50 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo2535.48.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/grafo2535.48.lp
Reading time = 0.15 seconds
: 98018 rows, 2821 columns, 296418 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 98018 rows, 2821 columns and 296418 nonzeros
Model fingerprint: 0xa6c53b01
Variable types: 53 continuous, 2768 integer (2768 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]
Found heuristic solution: objective 3.0000000
Presolve removed 10014 rows and 1 columns
Presolve time: 0.54s
Presolved: 88004 rows, 2820 columns, 266723 nonzeros
Variable types: 0 continuous, 2820 integer (2767 binary)
Found heuristic solution: objective 9.0000000
Root relaxation presolved: 2784 rows, 90788 columns, 269543 nonzeros


Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
   21791    4.9932462e+01   0.000000e+00   2.120471e+04      5s
   42311    4.9921090e+01   0.000000e+00   2.971486e+03     10s
   56571    5.0000000e+01   0.000000e+00   0.000000e+00     14s
   56571    5.0000000e+01   0.000000e+00   0.000000e+00     14s
   56571    5.0000000e+01   0.000000e+00   0.000000e+00     14s

Root relaxation: objective 5.000000e+01, 56571 iterations, 13.17 seconds (11.63 work units)
Total elapsed time = 26.34s (DegenMoves)
Total elapsed time = 30.34s (DegenMoves)

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

     0     0   50.00000    0  511    9.00000   50.00000   456%     -   32s
H    0     0                      12.0000000   50.00000   317%     -   32s
     0     0   50.00000    0  795   12.00000   50.00000   317%     -   41s
     0     0   50.00000    0  762   12.00000   50.00000   317%     -   44s
     0     0          -    0        12.00000   50.00000   317%     -   50s

Cutting planes:
  Gomory: 1
  Lift-and-project: 38
  Cover: 11
  Clique: 2
  MIR: 123
  StrongCG: 1
  Zero half: 29
  RLT: 41
  BQP: 1

Explored 1 nodes (84863 simplex iterations) in 50.02 seconds (50.65 work units)
Thread count was 8 (of 8 available processors)

Solution count 3: 12 9 3 

Time limit reached
Best objective 1.200000000000e+01, best bound 5.000000000000e+01, gap 316.6667%

Wrote result file './lp_solutions/grafo2535.48.sol'

