
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Tue Nov 26 02:54:57 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo5158.43.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/grafo5158.43.lp
Reading time = 0.49 seconds
: 256456 rows, 3219 columns, 772572 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 256456 rows, 3219 columns and 772572 nonzeros
Model fingerprint: 0xda9c2809
Variable types: 60 continuous, 3159 integer (3159 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]
Found heuristic solution: objective -0.0000000
Presolve removed 89456 rows and 36 columns
Presolve time: 2.53s
Presolved: 167000 rows, 3183 columns, 504699 nonzeros
Variable types: 0 continuous, 3183 integer (3123 binary)
Found heuristic solution: objective 14.0000000
Root relaxation presolved: 3180 rows, 170180 columns, 507882 nonzeros


Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
    7800    1.4358305e+02   0.000000e+00   3.368045e+05      5s
   22762    9.2875189e+01   0.000000e+00   4.620009e+05     10s
   36204    7.2884006e+01   0.000000e+00   2.963666e+05     15s
   48656    7.0818833e+01   0.000000e+00   3.151599e+05     20s
   60468    6.9768494e+01   0.000000e+00   5.733551e+05     25s
   72748    6.9738932e+01   0.000000e+00   9.271025e+04     30s
   85022    6.9723841e+01   0.000000e+00   9.740179e+03     35s
   97296    6.9713255e+01   0.000000e+00   1.082985e+05     40s
  108924    6.9706712e+01   0.000000e+00   3.657053e+04     45s

Root relaxation: time limit, 120697 iterations, 47.18 seconds (28.00 work units)

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

     0     0          -    0        14.00000  339.00000  2321%     -   50s

Explored 1 nodes (120697 simplex iterations) in 50.03 seconds (30.29 work units)
Thread count was 8 (of 8 available processors)

Solution count 2: 14 -0 

Time limit reached
Best objective 1.400000000000e+01, best bound 3.390000000000e+02, gap 2321.4286%

Wrote result file './lp_solutions/grafo5158.43.sol'

