
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Mon Nov 25 09:40:18 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo5945.45.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/grafo5945.45.lp
Reading time = 0.22 seconds
: 138290 rows, 2850 columns, 417429 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 138290 rows, 2850 columns and 417429 nonzeros
Model fingerprint: 0x2a16456c
Variable types: 54 continuous, 2796 integer (2796 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 34501 rows and 33 columns
Presolve time: 1.00s
Presolved: 103789 rows, 2817 columns, 314428 nonzeros
Variable types: 0 continuous, 2817 integer (2763 binary)
Found heuristic solution: objective 11.0000000
Root relaxation presolved: 2811 rows, 106600 columns, 317245 nonzeros


Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
   19808    5.6974903e+01   0.000000e+00   1.501815e+05      5s
   39251    5.6947380e+01   0.000000e+00   5.775415e+04     10s
   57827    5.6937057e+01   0.000000e+00   2.803322e+04     15s
   75971    5.6932895e+01   0.000000e+00   1.148064e+03     20s
   94115    5.6931768e+01   0.000000e+00   1.590502e+03     25s
  102206    5.7000000e+01   0.000000e+00   0.000000e+00     27s
  102206    5.7000000e+01   0.000000e+00   0.000000e+00     27s
  102206    5.7000000e+01   0.000000e+00   0.000000e+00     27s

Root relaxation: objective 5.700000e+01, 102206 iterations, 26.20 seconds (21.50 work units)

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

     0     0   57.00000    0 1724   11.00000   57.00000   418%     -   50s

Explored 1 nodes (114010 simplex iterations) in 50.03 seconds (44.35 work units)
Thread count was 8 (of 8 available processors)

Solution count 1: 11 

Time limit reached
Best objective 1.100000000000e+01, best bound 5.700000000000e+01, gap 418.1818%

Wrote result file './lp_solutions/grafo5945.45.sol'

