
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Tue Nov 26 03:36:19 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo3468.44.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/grafo3468.44.lp
Reading time = 0.41 seconds
: 205763 rows, 2433 columns, 619229 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 205763 rows, 2433 columns and 619229 nonzeros
Model fingerprint: 0xb4afc39e
Variable types: 44 continuous, 2389 integer (2389 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 83763 rows and 98 columns
Presolve time: 1.75s
Presolved: 122000 rows, 2335 columns, 368167 nonzeros
Variable types: 0 continuous, 2335 integer (2291 binary)
Root relaxation presolved: 2328 rows, 124328 columns, 370502 nonzeros


Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
   14431    5.4998978e+01   0.000000e+00   1.489101e+05      5s
   31700    4.7867994e+01   0.000000e+00   6.226952e+04     10s
   52492    4.7825239e+01   0.000000e+00   2.246816e+04     15s
   73260    4.7810051e+01   0.000000e+00   6.981022e+03     20s
   94593    4.7805989e+01   0.000000e+00   3.996439e+01     25s
   98119    4.8000000e+01   0.000000e+00   0.000000e+00     26s
   98119    4.8000000e+01   0.000000e+00   0.000000e+00     26s
   98119    4.8000000e+01   0.000000e+00   0.000000e+00     26s

Root relaxation: objective 4.800000e+01, 98119 iterations, 23.96 seconds (13.72 work units)
Total elapsed time = 43.34s (DegenMoves)
Total elapsed time = 47.03s (DegenMoves)

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

     0     0   48.00000    0  411          -   48.00000      -     -   49s
H    0     0                       9.0000000   48.00000   433%     -   50s

Explored 1 nodes (111961 simplex iterations) in 50.32 seconds (40.11 work units)
Thread count was 8 (of 8 available processors)

Solution count 1: 9 

Time limit reached
Best objective 9.000000000000e+00, best bound 4.800000000000e+01, gap 433.3333%

Wrote result file './lp_solutions/grafo3468.44.sol'

