
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Tue Nov 19 06:56:05 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo5819.38.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/grafo5819.38.lp
Reading time = 0.20 seconds
: 118416 rows, 2095 columns, 357058 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 118416 rows, 2095 columns and 357058 nonzeros
Model fingerprint: 0x558526ba
Variable types: 44 continuous, 2051 integer (2051 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 42566 rows and 35 columns
Presolve time: 0.78s
Presolved: 75850 rows, 2060 columns, 229735 nonzeros
Variable types: 0 continuous, 2060 integer (2016 binary)
Root relaxation presolved: 2050 rows, 77900 columns, 231795 nonzeros


Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
   27733    4.3952056e+01   0.000000e+00   4.322144e+03      5s
   43630    4.4000000e+01   0.000000e+00   0.000000e+00      8s
   43630    4.4000000e+01   0.000000e+00   0.000000e+00      8s
   43630    4.4000000e+01   0.000000e+00   0.000000e+00      8s

Root relaxation: objective 4.400000e+01, 43630 iterations, 6.89 seconds (5.33 work units)
Total elapsed time = 15.72s (DegenMoves)

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

     0     0   44.00000    0  491          -   44.00000      -     -   17s
H    0     0                      14.0000000   44.00000   214%     -   19s
     0     0   44.00000    0  734   14.00000   44.00000   214%     -   27s
     0     0   44.00000    0  742   14.00000   44.00000   214%     -   29s
H    0     0                      16.0000000   44.00000   175%     -   35s
     0     0   44.00000    0  748   16.00000   44.00000   175%     -   50s

Cutting planes:
  Gomory: 2
  Lift-and-project: 38
  Cover: 8
  Clique: 28
  MIR: 135
  Zero half: 18
  RLT: 47
  Relax-and-lift: 1
  BQP: 6

Explored 1 nodes (69451 simplex iterations) in 50.11 seconds (44.58 work units)
Thread count was 8 (of 8 available processors)

Solution count 2: 16 14 

Time limit reached
Best objective 1.600000000000e+01, best bound 4.400000000000e+01, gap 175.0000%

Wrote result file './lp_solutions/grafo5819.38.sol'

