
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Thu Nov 14 05:59:06 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo3418.49.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/grafo3418.49.lp
Reading time = 0.20 seconds
: 107315 rows, 2891 columns, 324293 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 107315 rows, 2891 columns and 324293 nonzeros
Model fingerprint: 0x8d7842d0
Variable types: 53 continuous, 2838 integer (2838 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 -0.0000000
Presolve removed 14158 rows and 0 columns
Presolve time: 1.02s
Presolved: 93157 rows, 2891 columns, 282271 nonzeros
Variable types: 0 continuous, 2891 integer (2838 binary)
Found heuristic solution: objective 8.0000000
Root relaxation presolved: 2843 rows, 96000 columns, 285162 nonzeros


Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
   13181    5.1425475e+01   0.000000e+00   2.037871e+05      5s
   28297    4.9691188e+01   0.000000e+00   3.551653e+04     10s
   42553    4.9674749e+01   0.000000e+00   4.146774e+03     15s
   55621    4.9669826e+01   0.000000e+00   1.018348e+03     20s
   68689    4.9668301e+01   0.000000e+00   5.821534e+01     25s
   70037    5.0000000e+01   0.000000e+00   0.000000e+00     26s
   70037    5.0000000e+01   0.000000e+00   0.000000e+00     26s
   70037    5.0000000e+01   0.000000e+00   0.000000e+00     26s

Root relaxation: objective 5.000000e+01, 70037 iterations, 24.47 seconds (13.42 work units)

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

     0     0   50.00000    0 1678    8.00000   50.00000   525%     -   50s

Explored 1 nodes (86075 simplex iterations) in 50.05 seconds (32.92 work units)
Thread count was 8 (of 8 available processors)

Solution count 2: 8 -0 

Time limit reached
Best objective 8.000000000000e+00, best bound 5.000000000000e+01, gap 525.0000%

Wrote result file './lp_solutions/grafo3418.49.sol'


Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Fri Nov 22 07:46:27 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo3418.49.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/grafo3418.49.lp
Reading time = 0.17 seconds
: 107315 rows, 2891 columns, 324293 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 107315 rows, 2891 columns and 324293 nonzeros
Model fingerprint: 0x8d7842d0
Variable types: 53 continuous, 2838 integer (2838 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 -0.0000000
Presolve removed 14158 rows and 0 columns
Presolve time: 0.61s
Presolved: 93157 rows, 2891 columns, 282271 nonzeros
Variable types: 0 continuous, 2891 integer (2838 binary)
Found heuristic solution: objective 8.0000000
Root relaxation presolved: 2843 rows, 96000 columns, 285162 nonzeros


Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
   19585    4.9718968e+01   0.000000e+00   1.139760e+05      5s
   39781    4.9676838e+01   0.000000e+00   1.773487e+04     10s
   58789    4.9669156e+01   0.000000e+00   5.707882e+03     15s
   70037    5.0000000e+01   0.000000e+00   0.000000e+00     18s
   70037    5.0000000e+01   0.000000e+00   0.000000e+00     18s
   70037    5.0000000e+01   0.000000e+00   0.000000e+00     18s

Root relaxation: objective 5.000000e+01, 70037 iterations, 17.44 seconds (13.42 work units)
Total elapsed time = 38.63s (DegenMoves)
Total elapsed time = 45.39s (DegenMoves)

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

     0     0   50.00000    0 1034    8.00000   50.00000   525%     -   50s

Explored 1 nodes (97642 simplex iterations) in 50.03 seconds (54.80 work units)
Thread count was 8 (of 8 available processors)

Solution count 2: 8 -0 

Time limit reached
Best objective 8.000000000000e+00, best bound 5.000000000000e+01, gap 525.0000%

Wrote result file './lp_solutions/grafo3418.49.sol'

