
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Mon Nov 25 07:14:13 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo6081.42.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/grafo6081.42.lp
Reading time = 0.33 seconds
: 201587 rows, 3185 columns, 608062 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 201587 rows, 3185 columns and 608062 nonzeros
Model fingerprint: 0xe7592439
Variable types: 60 continuous, 3125 integer (3125 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 62455 rows and 24 columns
Presolve time: 1.42s
Presolved: 139132 rows, 3161 columns, 421285 nonzeros
Variable types: 0 continuous, 3161 integer (3101 binary)
Root relaxation presolved: 3152 rows, 142284 columns, 424446 nonzeros


Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
   16427    6.9930118e+01   0.000000e+00   1.386291e+05      5s
   34128    6.4867263e+01   0.000000e+00   3.863286e+04     10s
   50089    6.4854739e+01   0.000000e+00   1.401795e+05     15s
   66049    6.4849562e+01   0.000000e+00   3.930010e+03     20s
   81439    6.4847868e+01   0.000000e+00   2.712646e+03     25s
   90435    6.5000000e+01   0.000000e+00   0.000000e+00     28s
   90435    6.5000000e+01   0.000000e+00   0.000000e+00     28s
   90435    6.5000000e+01   0.000000e+00   0.000000e+00     28s

Root relaxation: objective 6.500000e+01, 90435 iterations, 26.28 seconds (23.36 work units)

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

     0     0   65.00000    0 1710          -   65.00000      -     -   50s
H    0     0                       4.0000000   65.00000  1525%     -   50s

Explored 1 nodes (99019 simplex iterations) in 50.05 seconds (46.07 work units)
Thread count was 8 (of 8 available processors)

Solution count 1: 4 

Time limit reached
Best objective 4.000000000000e+00, best bound 6.500000000000e+01, gap 1525.0000%

Wrote result file './lp_solutions/grafo6081.42.sol'

