
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Mon Nov 25 11:34:37 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo4380.49.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/grafo4380.49.lp
Reading time = 0.25 seconds
: 147018 rows, 3516 columns, 444526 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 147018 rows, 3516 columns and 444526 nonzeros
Model fingerprint: 0x26c793b9
Variable types: 62 continuous, 3454 integer (3454 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 19764 rows and 41 columns
Presolve time: 1.11s
Presolved: 127254 rows, 3475 columns, 385634 nonzeros
Variable types: 0 continuous, 3475 integer (3413 binary)
Root relaxation presolved: 3463 rows, 130717 columns, 389109 nonzeros


Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
   14032    6.0003673e+01   0.000000e+00   4.843170e+05      5s
   28467    5.9953674e+01   0.000000e+00   3.538789e+04     10s
   42896    5.9939251e+01   0.000000e+00   5.776627e+04     15s
   55881    5.9931050e+01   0.000000e+00   1.481492e+04     20s
   68841    5.9926140e+01   0.000000e+00   1.891298e+04     25s
   80841    5.9923352e+01   0.000000e+00   1.457701e+04     30s
   92361    5.9921559e+01   0.000000e+00   9.979606e+02     35s
  104405    5.9920994e+01   0.000000e+00   3.484552e+02     40s
  108728    6.0000000e+01   0.000000e+00   0.000000e+00     42s
  108728    6.0000000e+01   0.000000e+00   0.000000e+00     42s
  108728    6.0000000e+01   0.000000e+00   0.000000e+00     42s

Root relaxation: objective 6.000000e+01, 108728 iterations, 40.60 seconds (32.36 work units)

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

     0     0   60.00000    0 1945          -   60.00000      -     -   50s
H    0     0                       9.0000000   60.00000   567%     -   50s

Explored 1 nodes (111054 simplex iterations) in 50.08 seconds (41.49 work units)
Thread count was 8 (of 8 available processors)

Solution count 1: 9 

Time limit reached
Best objective 9.000000000000e+00, best bound 6.000000000000e+01, gap 566.6667%

Wrote result file './lp_solutions/grafo4380.49.sol'

