
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Tue Nov 26 04:45:40 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo5526.46.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/grafo5526.46.lp
Reading time = 0.38 seconds
: 176002 rows, 3396 columns, 531427 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 176002 rows, 3396 columns and 531427 nonzeros
Model fingerprint: 0x79716749
Variable types: 62 continuous, 3334 integer (3334 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 38936 rows and 1 columns
Presolve time: 1.56s
Presolved: 137066 rows, 3395 columns, 414977 nonzeros
Variable types: 0 continuous, 3395 integer (3333 binary)
Found heuristic solution: objective 6.0000000
Root relaxation presolved: 3359 rows, 140425 columns, 418372 nonzeros


Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
   10386    8.2915696e+01   0.000000e+00   4.179624e+05      5s
   21480    6.4758895e+01   0.000000e+00   3.223764e+05     10s
   31689    6.4679466e+01   0.000000e+00   1.378646e+05     15s
   42283    6.4627362e+01   0.000000e+00   3.210793e+05     20s
   52687    6.4593273e+01   0.000000e+00   1.082074e+05     25s
   63061    6.4574802e+01   0.000000e+00   4.195850e+04     30s
   73981    6.4561921e+01   0.000000e+00   2.435461e+04     35s
   84901    6.4554167e+01   0.000000e+00   5.116333e+04     40s
   95275    6.4548971e+01   0.000000e+00   1.260978e+04     45s

Root relaxation: time limit, 106232 iterations, 48.00 seconds (26.95 work units)

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

     0     0          -    0         6.00000  277.00000  4517%     -   50s

Explored 1 nodes (106232 simplex iterations) in 50.03 seconds (28.44 work units)
Thread count was 8 (of 8 available processors)

Solution count 1: 6 

Time limit reached
Best objective 6.000000000000e+00, best bound 2.770000000000e+02, gap 4516.6667%

Wrote result file './lp_solutions/grafo5526.46.sol'

