
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Thu Nov 14 05:12:08 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo2695.43.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/grafo2695.43.lp
Reading time = 0.11 seconds
: 59706 rows, 2095 columns, 180657 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 59706 rows, 2095 columns and 180657 nonzeros
Model fingerprint: 0x2d248a19
Variable types: 44 continuous, 2051 integer (2051 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 2.0000000
Presolve removed 5325 rows and 1 columns
Presolve time: 0.43s
Presolved: 54381 rows, 2094 columns, 165023 nonzeros
Variable types: 0 continuous, 2094 integer (2050 binary)
Found heuristic solution: objective 8.0000000
Root relaxation presolved: 28796 rows, 27679 columns, 113853 nonzeros


Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
    4811    3.5999854e+01   2.337604e+02   0.000000e+00      5s
    6266    3.6000000e+01   0.000000e+00   0.000000e+00      6s
    6266    3.6000000e+01   0.000000e+00   0.000000e+00      6s

Root relaxation: objective 3.600000e+01, 6266 iterations, 5.79 seconds (3.49 work units)
Total elapsed time = 12.24s (DegenMoves)

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

     0     0   36.00000    0  572    8.00000   36.00000   350%     -   13s
H    0     0                       9.0000000   36.00000   300%     -   13s
H    0     0                      10.0000000   36.00000   260%     -   13s
H    0     0                      11.0000000   36.00000   227%     -   18s
H    0     0                      12.0000000   36.00000   200%     -   18s
     0     0   36.00000    0  821   12.00000   36.00000   200%     -   30s
H    0     0                      13.0000000   36.00000   177%     -   31s
     0     0   36.00000    0  797   13.00000   36.00000   177%     -   31s
     0     0   36.00000    0  806   13.00000   36.00000   177%     -   50s

Cutting planes:
  Gomory: 2
  Cover: 11
  MIR: 108
  StrongCG: 3
  Zero half: 77
  RLT: 61

Explored 1 nodes (32296 simplex iterations) in 50.09 seconds (27.15 work units)
Thread count was 8 (of 8 available processors)

Solution count 7: 13 12 11 ... 2

Time limit reached
Best objective 1.300000000000e+01, best bound 3.600000000000e+01, gap 176.9231%

Wrote result file './lp_solutions/grafo2695.43.sol'


Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Fri Nov 22 05:46:33 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo2695.43.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/grafo2695.43.lp
Reading time = 0.09 seconds
: 59706 rows, 2095 columns, 180657 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 59706 rows, 2095 columns and 180657 nonzeros
Model fingerprint: 0x2d248a19
Variable types: 44 continuous, 2051 integer (2051 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 2.0000000
Presolve removed 5325 rows and 1 columns
Presolve time: 0.32s
Presolved: 54381 rows, 2094 columns, 165023 nonzeros
Variable types: 0 continuous, 2094 integer (2050 binary)
Found heuristic solution: objective 8.0000000
Root relaxation presolved: 28796 rows, 27679 columns, 113853 nonzeros


Root relaxation: objective 3.600000e+01, 6266 iterations, 4.03 seconds (3.49 work units)
Total elapsed time = 8.79s (DegenMoves)

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

     0     0   36.00000    0  572    8.00000   36.00000   350%     -    9s
H    0     0                       9.0000000   36.00000   300%     -    9s
H    0     0                      10.0000000   36.00000   260%     -    9s
H    0     0                      11.0000000   36.00000   227%     -   12s
H    0     0                      12.0000000   36.00000   200%     -   12s
     0     0   36.00000    0  821   12.00000   36.00000   200%     -   20s
H    0     0                      13.0000000   36.00000   177%     -   20s
     0     0   36.00000    0  797   13.00000   36.00000   177%     -   21s
     0     0   36.00000    0  595   13.00000   36.00000   177%     -   48s
     0     0   36.00000    0  535   13.00000   36.00000   177%     -   48s
     0     0          -    0        13.00000   36.00000   177%     -   50s

Cutting planes:
  Gomory: 2
  Cover: 24
  MIR: 156
  StrongCG: 1
  Zero half: 65
  RLT: 74

Explored 1 nodes (48396 simplex iterations) in 50.07 seconds (44.96 work units)
Thread count was 8 (of 8 available processors)

Solution count 7: 13 12 11 ... 2

Time limit reached
Best objective 1.300000000000e+01, best bound 3.600000000000e+01, gap 176.9231%

Wrote result file './lp_solutions/grafo2695.43.sol'

