
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Tue Nov 26 02:33:49 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo7485.42.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/grafo7485.42.lp
Reading time = 0.49 seconds
: 254718 rows, 2752 columns, 766720 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 254718 rows, 2752 columns and 766720 nonzeros
Model fingerprint: 0xe8f216f7
Variable types: 52 continuous, 2700 integer (2700 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 102250 rows and 41 columns
Presolve time: 2.31s
Presolved: 152468 rows, 2711 columns, 460220 nonzeros
Variable types: 0 continuous, 2711 integer (2659 binary)
Root relaxation presolved: 2711 rows, 155179 columns, 462931 nonzeros


Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
   10155    1.3834093e+02   0.000000e+00   1.131972e+06      5s
   28310    8.3058529e+01   0.000000e+00   1.453528e+05     10s
   45106    5.7877382e+01   0.000000e+00   1.185907e+05     15s
   59257    5.7795833e+01   0.000000e+00   2.005624e+05     20s
   75683    5.7748050e+01   0.000000e+00   5.774064e+04     25s
   91415    5.7733163e+01   0.000000e+00   1.344052e+04     30s
  106463    5.7727734e+01   0.000000e+00   3.876298e+03     35s
  120762    5.8000000e+01   0.000000e+00   0.000000e+00     40s
  120762    5.8000000e+01   0.000000e+00   0.000000e+00     40s

Root relaxation: objective 5.800000e+01, 120762 iterations, 37.42 seconds (22.31 work units)

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

     0     0   58.00000    0 1491          -   58.00000      -     -   50s
H    0     0                       4.0000000   58.00000  1350%     -   50s

Explored 1 nodes (125296 simplex iterations) in 50.09 seconds (33.18 work units)
Thread count was 8 (of 8 available processors)

Solution count 1: 4 

Time limit reached
Best objective 4.000000000000e+00, best bound 5.800000000000e+01, gap 1350.0000%

Wrote result file './lp_solutions/grafo7485.42.sol'

