
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Mon Nov 25 11:40:31 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo6707.49.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/grafo6707.49.lp
Reading time = 0.23 seconds
: 131856 rows, 3200 columns, 398389 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 131856 rows, 3200 columns and 398389 nonzeros
Model fingerprint: 0xe7858e56
Variable types: 57 continuous, 3143 integer (3143 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 21391 rows and 0 columns
Presolve time: 0.89s
Presolved: 110465 rows, 3200 columns, 334740 nonzeros
Variable types: 0 continuous, 3200 integer (3143 binary)
Found heuristic solution: objective 8.0000000
Root relaxation presolved: 3158 rows, 113623 columns, 337940 nonzeros


Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
   16017    5.8988259e+01   0.000000e+00   1.369679e+05      5s
   30754    5.8964387e+01   0.000000e+00   1.688010e+05     10s
   44866    5.8953475e+01   0.000000e+00   1.536239e+05     15s
   58456    5.8946048e+01   0.000000e+00   1.245629e+05     20s
   73072    5.8940929e+01   0.000000e+00   3.884917e+04     25s
   86749    5.8937490e+01   0.000000e+00   2.770133e+04     30s
  101499    5.8935116e+01   0.000000e+00   9.514598e+03     35s
  116387    5.8934135e+01   0.000000e+00   1.013237e+03     40s
  131134    5.8933928e+01   0.000000e+00   6.270410e+02     45s

Root relaxation: time limit, 143962 iterations, 48.86 seconds (37.61 work units)

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

     0     0          -    0         8.00000  245.00000  2962%     -   50s

Explored 1 nodes (143962 simplex iterations) in 50.02 seconds (38.72 work units)
Thread count was 8 (of 8 available processors)

Solution count 1: 8 

Time limit reached
Best objective 8.000000000000e+00, best bound 2.450000000000e+02, gap 2962.5000%

Wrote result file './lp_solutions/grafo6707.49.sol'

