
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Tue Nov 26 01:32:13 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo6265.41.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/grafo6265.41.lp
Reading time = 0.41 seconds
: 217486 rows, 2682 columns, 654989 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 217486 rows, 2682 columns and 654989 nonzeros
Model fingerprint: 0x15ddb463
Variable types: 53 continuous, 2629 integer (2629 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]
Found heuristic solution: objective -0.0000000
Presolve removed 81175 rows and 33 columns
Presolve time: 2.06s
Presolved: 136311 rows, 2649 columns, 411937 nonzeros
Variable types: 0 continuous, 2649 integer (2596 binary)
Found heuristic solution: objective 8.0000000
Root relaxation presolved: 2646 rows, 138957 columns, 414586 nonzeros


Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
   10797    7.0165692e+01   0.000000e+00   5.307293e+05      5s
   28390    5.2783344e+01   0.000000e+00   1.205173e+05     10s
   43799    5.0712184e+01   0.000000e+00   9.287197e+04     15s
   59866    5.0675994e+01   0.000000e+00   3.142372e+04     20s
   75931    5.0659521e+01   0.000000e+00   1.803214e+04     25s
   91996    5.0654602e+01   0.000000e+00   1.936145e+03     30s
   99901    5.1000000e+01   0.000000e+00   0.000000e+00     33s
   99901    5.1000000e+01   0.000000e+00   0.000000e+00     33s
   99901    5.1000000e+01   0.000000e+00   0.000000e+00     33s

Root relaxation: objective 5.100000e+01, 99901 iterations, 30.39 seconds (18.28 work units)

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

     0     0   51.00000    0 1490    8.00000   51.00000   537%     -   50s

Explored 1 nodes (106889 simplex iterations) in 50.08 seconds (34.76 work units)
Thread count was 8 (of 8 available processors)

Solution count 2: 8 -0 

Time limit reached
Best objective 8.000000000000e+00, best bound 5.100000000000e+01, gap 537.5000%

Wrote result file './lp_solutions/grafo6265.41.sol'

