
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Tue Nov 26 03:28:44 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo7708.43.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/grafo7708.43.lp
Reading time = 0.43 seconds
: 232165 rows, 2812 columns, 699126 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 232165 rows, 2812 columns and 699126 nonzeros
Model fingerprint: 0x6c5bf880
Variable types: 53 continuous, 2759 integer (2759 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 86418 rows and 13 columns
Presolve time: 1.96s
Presolved: 145747 rows, 2799 columns, 440256 nonzeros
Variable types: 0 continuous, 2799 integer (2746 binary)
Root relaxation presolved: 2794 rows, 148541 columns, 443055 nonzeros


Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
   12793    9.5198508e+01   0.000000e+00   8.393834e+06      5s
   28262    5.9938278e+01   0.000000e+00   9.154561e+04     10s
   43776    5.6800287e+01   0.000000e+00   1.680672e+05     15s
   59087    5.6728446e+01   0.000000e+00   6.795343e+04     20s
   75611    5.6708023e+01   0.000000e+00   2.300364e+04     25s
   91523    5.6700502e+01   0.000000e+00   8.187193e+03     30s
  108047    5.6697799e+01   0.000000e+00   2.778982e+02     35s
  116582    5.7000000e+01   0.000000e+00   0.000000e+00     38s
  116582    5.7000000e+01   0.000000e+00   0.000000e+00     38s
  116582    5.7000000e+01   0.000000e+00   0.000000e+00     38s

Root relaxation: objective 5.700000e+01, 116582 iterations, 35.35 seconds (20.82 work units)

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

     0     0   57.00000    0 1623          -   57.00000      -     -   50s
H    0     0                       5.0000000   57.00000  1040%     -   50s

Explored 1 nodes (122130 simplex iterations) in 50.07 seconds (33.31 work units)
Thread count was 8 (of 8 available processors)

Solution count 1: 5 

Time limit reached
Best objective 5.000000000000e+00, best bound 5.700000000000e+01, gap 1040.0000%

Wrote result file './lp_solutions/grafo7708.43.sol'

