
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Thu Nov 14 03:29:51 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo11597.37.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/grafo11597.37.lp
Reading time = 0.14 seconds
: 68338 rows, 1880 columns, 206595 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 68338 rows, 1880 columns and 206595 nonzeros
Model fingerprint: 0x5ead861d
Variable types: 43 continuous, 1837 integer (1837 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 4.0000000
Presolve removed 16158 rows and 21 columns
Presolve time: 0.71s
Presolved: 52180 rows, 1859 columns, 158536 nonzeros
Variable types: 0 continuous, 1859 integer (1816 binary)
Found heuristic solution: objective 11.0000000
Root relaxation presolved: 1853 rows, 54033 columns, 160395 nonzeros


Root relaxation: objective 4.100000e+01, 1579 iterations, 0.65 seconds (0.29 work units)

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

     0     0   41.00000    0  439   11.00000   41.00000   273%     -    4s
H    0     0                      14.0000000   41.00000   193%     -    4s
H    0     0                      16.0000000   41.00000   156%     -    7s
H    0     0                      17.0000000   41.00000   141%     -   13s
     0     0   41.00000    0  644   17.00000   41.00000   141%     -   13s
     0     0   41.00000    0  623   17.00000   41.00000   141%     -   14s
H    0     0                      18.0000000   41.00000   128%     -   42s
H    0     0                      19.0000000   41.00000   116%     -   42s
H    0     0                      20.0000000   41.00000   105%     -   42s
     0     0   41.00000    0  508   20.00000   41.00000   105%     -   42s
     0     0   41.00000    0  454   20.00000   41.00000   105%     -   43s
     0     0          -    0        20.00000   41.00000   105%     -   50s

Cutting planes:
  Gomory: 1
  Cover: 32
  Clique: 6
  MIR: 128
  StrongCG: 3
  Zero half: 45
  RLT: 61

Explored 1 nodes (33094 simplex iterations) in 50.10 seconds (30.63 work units)
Thread count was 8 (of 8 available processors)

Solution count 8: 20 19 18 ... 4

Time limit reached
Best objective 2.000000000000e+01, best bound 4.100000000000e+01, gap 105.0000%

Wrote result file './lp_solutions/grafo11597.37.sol'


Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Thu Nov 21 08:16:00 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo11597.37.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/grafo11597.37.lp
Reading time = 0.11 seconds
: 68338 rows, 1880 columns, 206595 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 68338 rows, 1880 columns and 206595 nonzeros
Model fingerprint: 0x5ead861d
Variable types: 43 continuous, 1837 integer (1837 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 4.0000000
Presolve removed 16158 rows and 21 columns
Presolve time: 0.49s
Presolved: 52180 rows, 1859 columns, 158536 nonzeros
Variable types: 0 continuous, 1859 integer (1816 binary)
Found heuristic solution: objective 11.0000000
Root relaxation presolved: 1853 rows, 54033 columns, 160395 nonzeros


Root relaxation: objective 4.100000e+01, 1579 iterations, 0.31 seconds (0.29 work units)

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

     0     0   41.00000    0  439   11.00000   41.00000   273%     -    3s
H    0     0                      14.0000000   41.00000   193%     -    3s
H    0     0                      16.0000000   41.00000   156%     -    4s
H    0     0                      17.0000000   41.00000   141%     -    8s
     0     0   41.00000    0  644   17.00000   41.00000   141%     -    8s
     0     0   41.00000    0  623   17.00000   41.00000   141%     -    9s
H    0     0                      18.0000000   41.00000   128%     -   30s
H    0     0                      19.0000000   41.00000   116%     -   30s
H    0     0                      20.0000000   41.00000   105%     -   30s
     0     0   41.00000    0  508   20.00000   41.00000   105%     -   30s
     0     0   41.00000    0  454   20.00000   41.00000   105%     -   30s
     0     0   41.00000    0  385   20.00000   41.00000   105%     -   43s
     0     0   41.00000    0  373   20.00000   41.00000   105%     -   44s
     0     0   41.00000    0  523   20.00000   41.00000   105%     -   50s

Cutting planes:
  Gomory: 1
  Cover: 26
  Clique: 5
  MIR: 107
  StrongCG: 1
  Zero half: 51
  RLT: 58

Explored 1 nodes (50833 simplex iterations) in 50.08 seconds (44.54 work units)
Thread count was 8 (of 8 available processors)

Solution count 8: 20 19 18 ... 4

Time limit reached
Best objective 2.000000000000e+01, best bound 4.100000000000e+01, gap 105.0000%

Wrote result file './lp_solutions/grafo11597.37.sol'

