
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Tue Nov 26 05:38:53 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo4334.48.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/grafo4334.48.lp
Reading time = 0.38 seconds
: 189175 rows, 3587 columns, 571133 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 189175 rows, 3587 columns and 571133 nonzeros
Model fingerprint: 0x9519e0c3
Variable types: 62 continuous, 3525 integer (3525 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, 6e+01]
Presolve removed 47234 rows and 61 columns
Presolve time: 1.63s
Presolved: 141941 rows, 3526 columns, 429938 nonzeros
Variable types: 0 continuous, 3526 integer (3464 binary)
Root relaxation presolved: 3513 rows, 145454 columns, 433464 nonzeros


Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
    9007    7.5938525e+01   0.000000e+00   5.260077e+05      5s
   20520    5.7888844e+01   0.000000e+00   2.507258e+05     10s
   31977    5.7858794e+01   0.000000e+00   2.256126e+04     15s
   42897    5.7844296e+01   0.000000e+00   3.954962e+04     20s
   53817    5.7834775e+01   0.000000e+00   1.902072e+04     25s
   64737    5.7828975e+01   0.000000e+00   6.537855e+03     30s
   75137    5.7825930e+01   0.000000e+00   1.348616e+03     35s
   85537    5.7823891e+01   0.000000e+00   1.571618e+03     40s
   95937    5.7822844e+01   0.000000e+00   6.278587e+02     45s
  105458    5.8000000e+01   0.000000e+00   0.000000e+00     50s
  105458    5.8000000e+01   0.000000e+00   0.000000e+00     50s
  105458    5.8000000e+01   0.000000e+00   0.000000e+00     50s

Root relaxation: objective 5.800000e+01, 105458 iterations, 47.65 seconds (33.50 work units)

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

     0     0  postponed    0               -   58.00000      -     -   50s
H    0     0                       9.0000000   58.00000   544%     -   50s

Explored 1 nodes (105519 simplex iterations) in 50.07 seconds (35.54 work units)
Thread count was 8 (of 8 available processors)

Solution count 1: 9 

Time limit reached
Best objective 9.000000000000e+00, best bound 5.800000000000e+01, gap 544.4444%

Wrote result file './lp_solutions/grafo4334.48.sol'

