
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Thu Nov 14 08:36:47 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo5723.43.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/grafo5723.43.lp
Reading time = 0.26 seconds
: 122473 rows, 2540 columns, 369587 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 122473 rows, 2540 columns and 369587 nonzeros
Model fingerprint: 0x71c71920
Variable types: 50 continuous, 2490 integer (2490 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 33845 rows and 25 columns
Presolve time: 1.29s
Presolved: 88628 rows, 2515 columns, 268492 nonzeros
Variable types: 0 continuous, 2515 integer (2465 binary)
Found heuristic solution: objective 6.0000000
Root relaxation presolved: 2512 rows, 91140 columns, 271007 nonzeros


Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
   14700    6.0940462e+01   0.000000e+00   5.063746e+04      5s
   30677    5.7914798e+01   0.000000e+00   1.129791e+04     10s
   44546    5.7909316e+01   0.000000e+00   4.039465e+03     15s
   59271    5.7908147e+01   0.000000e+00   3.996290e+02     20s
   70758    5.8000000e+01   0.000000e+00   0.000000e+00     24s
   70758    5.8000000e+01   0.000000e+00   0.000000e+00     24s
   70758    5.8000000e+01   0.000000e+00   0.000000e+00     24s

Root relaxation: objective 5.800000e+01, 70758 iterations, 22.70 seconds (14.24 work units)
Total elapsed time = 46.33s (DegenMoves)

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

     0     0   58.00000    0  823    6.00000   58.00000   867%     -   50s

Explored 1 nodes (86170 simplex iterations) in 50.03 seconds (38.06 work units)
Thread count was 8 (of 8 available processors)

Solution count 1: 6 

Time limit reached
Best objective 6.000000000000e+00, best bound 5.800000000000e+01, gap 866.6667%

Wrote result file './lp_solutions/grafo5723.43.sol'


Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Fri Nov 22 05:58:16 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo5723.43.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/grafo5723.43.lp
Reading time = 0.19 seconds
: 122473 rows, 2540 columns, 369587 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 122473 rows, 2540 columns and 369587 nonzeros
Model fingerprint: 0x71c71920
Variable types: 50 continuous, 2490 integer (2490 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 33845 rows and 25 columns
Presolve time: 0.86s
Presolved: 88628 rows, 2515 columns, 268492 nonzeros
Variable types: 0 continuous, 2515 integer (2465 binary)
Found heuristic solution: objective 6.0000000
Root relaxation presolved: 2512 rows, 91140 columns, 271007 nonzeros


Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
   21231    5.7924388e+01   0.000000e+00   5.298251e+04      5s
   40975    5.7910174e+01   0.000000e+00   7.875641e+03     10s
   61167    5.7908102e+01   0.000000e+00   7.911629e+01     15s
   70758    5.8000000e+01   0.000000e+00   0.000000e+00     17s
   70758    5.8000000e+01   0.000000e+00   0.000000e+00     17s
   70758    5.8000000e+01   0.000000e+00   0.000000e+00     17s

Root relaxation: objective 5.800000e+01, 70758 iterations, 16.41 seconds (14.24 work units)
Total elapsed time = 35.52s (DegenMoves)
Total elapsed time = 40.42s (DegenMoves)

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

     0     0   58.00000    0  690    6.00000   58.00000   867%     -   40s
H    0     0                      11.0000000   58.00000   427%     -   40s
     0     0          -    0        11.00000   58.00000   427%     -   50s

Cutting planes:
  Gomory: 39
  Cover: 23
  Clique: 20
  MIR: 122
  StrongCG: 1
  GUB cover: 5
  Zero half: 37
  RLT: 42

Explored 1 nodes (92004 simplex iterations) in 50.03 seconds (49.27 work units)
Thread count was 8 (of 8 available processors)

Solution count 2: 11 6 

Time limit reached
Best objective 1.100000000000e+01, best bound 5.800000000000e+01, gap 427.2727%

Wrote result file './lp_solutions/grafo5723.43.sol'

