
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Mon Nov 25 06:39:48 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo7124.41.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/grafo7124.41.lp
Reading time = 0.26 seconds
: 158995 rows, 2782 columns, 479675 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 158995 rows, 2782 columns and 479675 nonzeros
Model fingerprint: 0x64df9930
Variable types: 55 continuous, 2727 integer (2727 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 47857 rows and 30 columns
Presolve time: 1.20s
Presolved: 111138 rows, 2752 columns, 336628 nonzeros
Variable types: 0 continuous, 2752 integer (2697 binary)
Found heuristic solution: objective 9.0000000
Root relaxation presolved: 2743 rows, 113881 columns, 339380 nonzeros


Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
   16235    6.1962986e+01   0.000000e+00   2.030182e+05      5s
   34234    5.9919153e+01   0.000000e+00   4.130468e+04     10s
   52606    5.9902549e+01   0.000000e+00   2.281745e+04     15s
   70524    5.9893482e+01   0.000000e+00   1.665946e+04     20s
   89040    5.9888755e+01   0.000000e+00   4.895796e+03     25s
  108492    5.9886697e+01   0.000000e+00   7.368125e+01     30s
  114644    6.0000000e+01   0.000000e+00   0.000000e+00     32s
  114644    6.0000000e+01   0.000000e+00   0.000000e+00     32s
  114644    6.0000000e+01   0.000000e+00   0.000000e+00     32s

Root relaxation: objective 6.000000e+01, 114644 iterations, 30.27 seconds (28.83 work units)

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

     0     0   60.00000    0 1691    9.00000   60.00000   567%     -   50s

Explored 1 nodes (123097 simplex iterations) in 50.04 seconds (48.38 work units)
Thread count was 8 (of 8 available processors)

Solution count 1: 9 

Time limit reached
Best objective 9.000000000000e+00, best bound 6.000000000000e+01, gap 566.6667%

Wrote result file './lp_solutions/grafo7124.41.sol'

