
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Tue Nov 26 04:39:44 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo7491.45.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/grafo7491.45.lp
Reading time = 0.26 seconds
: 141574 rows, 2942 columns, 427399 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 141574 rows, 2942 columns and 427399 nonzeros
Model fingerprint: 0x3bc4efa2
Variable types: 54 continuous, 2888 integer (2888 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 36710 rows and 10 columns
Presolve time: 1.13s
Presolved: 104864 rows, 2932 columns, 317939 nonzeros
Variable types: 0 continuous, 2932 integer (2878 binary)
Root relaxation presolved: 2924 rows, 107788 columns, 320871 nonzeros


Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
   13884    6.9965987e+01   0.000000e+00   2.693465e+05      5s
   28242    6.0944838e+01   0.000000e+00   6.363776e+04     10s
   41640    6.0933453e+01   0.000000e+00   6.006300e+04     15s
   55778    6.0925850e+01   0.000000e+00   3.828113e+04     20s
   68251    6.0921581e+01   0.000000e+00   2.844304e+04     25s
   81791    6.0917786e+01   0.000000e+00   4.050330e+03     30s
   95160    6.0915436e+01   0.000000e+00   7.274524e+03     35s
  108534    6.0914246e+01   0.000000e+00   4.399562e+03     40s
  121769    6.0913516e+01   0.000000e+00   3.103595e+02     45s
  127395    6.1000000e+01   0.000000e+00   0.000000e+00     47s
  127395    6.1000000e+01   0.000000e+00   0.000000e+00     47s
  127395    6.1000000e+01   0.000000e+00   0.000000e+00     47s

Root relaxation: objective 6.100000e+01, 127395 iterations, 45.74 seconds (30.25 work units)

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

     0     0   61.00000    0 1980          -   61.00000      -     -   50s
H    0     0                       3.0000000   61.00000  1933%     -   50s

Explored 1 nodes (128089 simplex iterations) in 50.07 seconds (33.92 work units)
Thread count was 8 (of 8 available processors)

Solution count 1: 3 

Time limit reached
Best objective 3.000000000000e+00, best bound 6.100000000000e+01, gap 1933.3333%

Wrote result file './lp_solutions/grafo7491.45.sol'

