
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Tue Nov 19 05:45:31 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo3219.37.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/grafo3219.37.lp
Reading time = 0.67 seconds
: 414122 rows, 2352 columns, 1244544 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 414122 rows, 2352 columns and 1244544 nonzeros
Model fingerprint: 0xd75b9d26
Variable types: 48 continuous, 2304 integer (2304 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 195656 rows and 13 columns
Presolve time: 3.07s
Presolved: 218466 rows, 2339 columns, 657849 nonzeros
Variable types: 0 continuous, 2339 integer (2291 binary)
Found heuristic solution: objective 9.0000000
Root relaxation presolved: 2330 rows, 220796 columns, 660188 nonzeros


Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
    6680    1.8456482e+02   0.000000e+00   3.797289e+05      5s
   41506    9.7545290e+01   0.000000e+00   6.855606e+05     11s
   62464    5.8972270e+01   0.000000e+00   2.527022e+05     15s
   84146    5.5885349e+01   0.000000e+00   1.710366e+05     20s
  107930    5.5852639e+01   0.000000e+00   1.453480e+04     25s
  131484    5.5841572e+01   0.000000e+00   3.306425e+03     30s
  156046    5.5838581e+01   0.000000e+00   7.327514e+00     35s
  157187    5.6000000e+01   0.000000e+00   0.000000e+00     35s
  157187    5.6000000e+01   0.000000e+00   0.000000e+00     36s
  157187    5.6000000e+01   0.000000e+00   0.000000e+00     36s

Root relaxation: objective 5.600000e+01, 157187 iterations, 31.96 seconds (23.05 work units)

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

     0     0   56.00000    0 1379    9.00000   56.00000   522%     -   50s

Explored 1 nodes (162187 simplex iterations) in 50.06 seconds (40.96 work units)
Thread count was 8 (of 8 available processors)

Solution count 1: 9 

Time limit reached
Best objective 9.000000000000e+00, best bound 5.600000000000e+01, gap 522.2222%

Wrote result file './lp_solutions/grafo3219.37.sol'

