
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Thu Nov 14 09:12:49 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo5913.37.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/grafo5913.37.lp
Reading time = 0.11 seconds
: 59677 rows, 1939 columns, 180662 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 59677 rows, 1939 columns and 180662 nonzeros
Model fingerprint: 0x5205ca13
Variable types: 45 continuous, 1894 integer (1894 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 9796 rows and 33 columns
Presolve time: 0.59s
Presolved: 49881 rows, 1906 columns, 151668 nonzeros
Variable types: 0 continuous, 1906 integer (1861 binary)
Found heuristic solution: objective 5.0000000
Root relaxation presolved: 27921 rows, 23866 columns, 107748 nonzeros


Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
    5001    4.4999822e+01   4.629356e+01   0.000000e+00      5s
    5533    4.5000000e+01   0.000000e+00   0.000000e+00      5s
    5533    4.5000000e+01   0.000000e+00   0.000000e+00      5s

Root relaxation: objective 4.500000e+01, 5533 iterations, 4.68 seconds (3.11 work units)
Total elapsed time = 11.35s (DegenMoves)
Total elapsed time = 25.85s (DegenMoves)
Total elapsed time = 31.18s (DegenMoves)

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

     0     0   45.00000    0  510    5.00000   45.00000   800%     -   32s
H    0     0                       6.0000000   45.00000   650%     -   32s
     0     0   45.00000    0  763    6.00000   45.00000   650%     -   46s
     0     0   45.00000    0  772    6.00000   45.00000   650%     -   49s

Cutting planes:
  Gomory: 4
  Cover: 15
  MIR: 109
  StrongCG: 3
  GUB cover: 4
  Zero half: 5
  RLT: 53
  PSD: 1

Explored 1 nodes (46004 simplex iterations) in 50.23 seconds (39.50 work units)
Thread count was 8 (of 8 available processors)

Solution count 2: 6 5 

Time limit reached
Best objective 6.000000000000e+00, best bound 4.500000000000e+01, gap 650.0000%

Wrote result file './lp_solutions/grafo5913.37.sol'


Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Thu Nov 21 08:43:38 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo5913.37.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/grafo5913.37.lp
Reading time = 0.10 seconds
: 59677 rows, 1939 columns, 180662 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 59677 rows, 1939 columns and 180662 nonzeros
Model fingerprint: 0x5205ca13
Variable types: 45 continuous, 1894 integer (1894 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 9796 rows and 33 columns
Presolve time: 0.40s
Presolved: 49881 rows, 1906 columns, 151668 nonzeros
Variable types: 0 continuous, 1906 integer (1861 binary)
Found heuristic solution: objective 5.0000000
Root relaxation presolved: 27921 rows, 23866 columns, 107748 nonzeros


Root relaxation: objective 4.500000e+01, 5533 iterations, 3.40 seconds (3.11 work units)
Total elapsed time = 8.15s (DegenMoves)
Total elapsed time = 20.19s (DegenMoves)

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

     0     0   45.00000    0  510    5.00000   45.00000   800%     -   25s
H    0     0                       6.0000000   45.00000   650%     -   25s
     0     0   45.00000    0  763    6.00000   45.00000   650%     -   34s
     0     0   45.00000    0  772    6.00000   45.00000   650%     -   36s
     0     0   45.00000    0  857    6.00000   45.00000   650%     -   50s

Cutting planes:
  Gomory: 5
  Cover: 11
  MIR: 164
  StrongCG: 3
  GUB cover: 4
  Zero half: 28
  RLT: 74
  PSD: 1

Explored 1 nodes (57106 simplex iterations) in 50.07 seconds (49.56 work units)
Thread count was 8 (of 8 available processors)

Solution count 2: 6 5 

Time limit reached
Best objective 6.000000000000e+00, best bound 4.500000000000e+01, gap 650.0000%

Wrote result file './lp_solutions/grafo5913.37.sol'

