
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Tue Nov 26 00:57:39 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo9929.40.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/grafo9929.40.lp
Reading time = 0.37 seconds
: 194427 rows, 2777 columns, 586042 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 194427 rows, 2777 columns and 586042 nonzeros
Model fingerprint: 0xeb15154d
Variable types: 54 continuous, 2723 integer (2723 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 69364 rows and 20 columns
Presolve time: 1.75s
Presolved: 125063 rows, 2757 columns, 378413 nonzeros
Variable types: 0 continuous, 2757 integer (2703 binary)
Found heuristic solution: objective 7.0000000
Root relaxation presolved: 2757 rows, 127820 columns, 381170 nonzeros


Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
   13328    8.2936401e+01   0.000000e+00   1.882808e+06      5s
   28961    6.0671932e+01   0.000000e+00   1.541744e+05     10s
   44655    6.0617051e+01   0.000000e+00   1.935650e+04     15s
   58695    6.0602151e+01   0.000000e+00   2.124175e+04     20s
   73815    6.0596261e+01   0.000000e+00   5.498570e+03     25s
   85201    6.1000000e+01   0.000000e+00   0.000000e+00     29s
   85201    6.1000000e+01   0.000000e+00   0.000000e+00     29s

Root relaxation: objective 6.100000e+01, 85201 iterations, 26.93 seconds (15.92 work units)

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

     0     0   61.00000    0 1503    7.00000   61.00000   771%     -   50s

Explored 1 nodes (94755 simplex iterations) in 50.05 seconds (35.23 work units)
Thread count was 8 (of 8 available processors)

Solution count 1: 7 

Time limit reached
Best objective 7.000000000000e+00, best bound 6.100000000000e+01, gap 771.4286%

Wrote result file './lp_solutions/grafo9929.40.sol'

