
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Tue Nov 26 05:59:09 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo5954.49.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/grafo5954.49.lp
Reading time = 0.28 seconds
: 159528 rows, 2987 columns, 481145 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 159528 rows, 2987 columns and 481145 nonzeros
Model fingerprint: 0x94ce35b8
Variable types: 53 continuous, 2934 integer (2934 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 41419 rows and 13 columns
Presolve time: 1.35s
Presolved: 118109 rows, 2974 columns, 357225 nonzeros
Variable types: 0 continuous, 2974 integer (2921 binary)
Root relaxation presolved: 2969 rows, 121078 columns, 360199 nonzeros


Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
   13875    5.2997971e+01   0.000000e+00   2.078762e+05      5s
   28372    5.2946184e+01   0.000000e+00   7.989590e+04     10s
   42333    5.2928637e+01   0.000000e+00   2.462055e+04     15s
   55320    5.2919263e+01   0.000000e+00   4.925333e+04     20s
   68788    5.2913390e+01   0.000000e+00   2.196330e+04     25s
   82257    5.2910195e+01   0.000000e+00   2.677415e+03     30s
   95725    5.2908688e+01   0.000000e+00   9.233438e+02     35s
  109193    5.2908218e+01   0.000000e+00   1.830519e+01     40s
  111340    5.3000000e+01   0.000000e+00   0.000000e+00     41s
  111340    5.3000000e+01   0.000000e+00   0.000000e+00     41s
  111340    5.3000000e+01   0.000000e+00   0.000000e+00     41s

Root relaxation: objective 5.300000e+01, 111340 iterations, 39.18 seconds (24.81 work units)

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

     0     0   53.00000    0 1924          -   53.00000      -     -   50s
H    0     0                       4.0000000   53.00000  1225%     -   50s

Explored 1 nodes (114774 simplex iterations) in 50.05 seconds (34.62 work units)
Thread count was 8 (of 8 available processors)

Solution count 1: 4 

Time limit reached
Best objective 4.000000000000e+00, best bound 5.300000000000e+01, gap 1225.0000%

Wrote result file './lp_solutions/grafo5954.49.sol'

