
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Mon Nov 25 08:20:33 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo7193.43.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/grafo7193.43.lp
Reading time = 0.65 seconds
: 379929 rows, 3140 columns, 1142845 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 379929 rows, 3140 columns and 1142845 nonzeros
Model fingerprint: 0x3ebb104c
Variable types: 57 continuous, 3083 integer (3083 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, 6e+01]
Presolve removed 161127 rows and 2 columns
Presolve time: 2.40s
Presolved: 218802 rows, 3138 columns, 659899 nonzeros
Variable types: 0 continuous, 3138 integer (3081 binary)
Found heuristic solution: objective 8.0000000
Root relaxation presolved: 3119 rows, 221921 columns, 663037 nonzeros


Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
   10221    1.7873145e+02   0.000000e+00   5.555465e+05      5s
   33796    1.2161710e+02   0.000000e+00   7.531476e+05     11s
   49175    9.5489312e+01   0.000000e+00   4.227680e+05     15s
   66796    7.8935995e+01   0.000000e+00   7.955249e+04     20s
   82202    7.6884266e+01   0.000000e+00   3.739007e+05     25s
   99154    7.6857705e+01   0.000000e+00   1.080696e+05     30s
  115945    7.6844989e+01   0.000000e+00   3.314950e+04     35s
  131845    7.6836679e+01   0.000000e+00   1.343539e+04     40s
  148565    7.6831076e+01   0.000000e+00   1.825358e+04     45s

Root relaxation: time limit, 164758 iterations, 47.08 seconds (38.10 work units)

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

     0     0          -    0         8.00000  429.00000  5262%     -   50s

Explored 1 nodes (164758 simplex iterations) in 50.04 seconds (41.19 work units)
Thread count was 8 (of 8 available processors)

Solution count 1: 8 

Time limit reached
Best objective 8.000000000000e+00, best bound 4.290000000000e+02, gap 5262.5000%

Wrote result file './lp_solutions/grafo7193.43.sol'

