
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Mon Nov 25 08:34:49 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo11640.44.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/grafo11640.44.lp
Reading time = 0.21 seconds
: 131504 rows, 2806 columns, 397071 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 131504 rows, 2806 columns and 397071 nonzeros
Model fingerprint: 0x3b58b8af
Variable types: 54 continuous, 2752 integer (2752 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 31367 rows and 30 columns
Presolve time: 0.94s
Presolved: 100137 rows, 2776 columns, 303468 nonzeros
Variable types: 0 continuous, 2776 integer (2722 binary)
Found heuristic solution: objective 9.0000000
Root relaxation presolved: 2767 rows, 102904 columns, 306244 nonzeros


Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
   17331    5.7736640e+01   0.000000e+00   8.741196e+05      5s
   37326    5.6659060e+01   0.000000e+00   1.044812e+04     10s
   56344    5.6645747e+01   0.000000e+00   1.054465e+04     15s
   73515    5.7000000e+01   0.000000e+00   0.000000e+00     20s
   73515    5.7000000e+01   0.000000e+00   0.000000e+00     20s
   73515    5.7000000e+01   0.000000e+00   0.000000e+00     20s

Root relaxation: objective 5.700000e+01, 73515 iterations, 18.68 seconds (15.40 work units)
Total elapsed time = 20.10s (DegenMoves)
Total elapsed time = 35.00s (DegenMoves)
Total elapsed time = 48.97s (DegenMoves)

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

     0     0   57.00000    0  667    9.00000   57.00000   533%     -   50s

Explored 1 nodes (97661 simplex iterations) in 50.07 seconds (58.56 work units)
Thread count was 8 (of 8 available processors)

Solution count 1: 9 

Time limit reached
Best objective 9.000000000000e+00, best bound 5.700000000000e+01, gap 533.3333%

Wrote result file './lp_solutions/grafo11640.44.sol'

