
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Tue Nov 26 01:11:58 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo3647.41.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/grafo3647.41.lp
Reading time = 0.74 seconds
: 353991 rows, 2757 columns, 1064606 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 353991 rows, 2757 columns and 1064606 nonzeros
Model fingerprint: 0xcf0f8405
Variable types: 53 continuous, 2704 integer (2704 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]
Found heuristic solution: objective 3.0000000
Presolve removed 151985 rows and 22 columns
Presolve time: 3.53s
Presolved: 202006 rows, 2735 columns, 609109 nonzeros
Variable types: 0 continuous, 2735 integer (2682 binary)
Found heuristic solution: objective 9.0000000
Root relaxation presolved: 2735 rows, 204741 columns, 611844 nonzeros


Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
    2952    2.0728590e+02   0.000000e+00   8.319938e+05      5s
   27455    8.3533748e+01   0.000000e+00   3.971061e+05     11s
   43065    5.8959132e+01   0.000000e+00   2.051948e+05     15s
   57244    5.8871733e+01   0.000000e+00   1.892084e+05     20s
   73532    5.8823588e+01   0.000000e+00   1.301839e+05     25s
   88832    5.8804801e+01   0.000000e+00   8.649580e+04     30s
  105939    5.8794280e+01   0.000000e+00   4.335855e+03     35s
  121239    5.8789214e+01   0.000000e+00   2.946957e+03     40s
  137440    5.8787135e+01   0.000000e+00   5.859564e+01     45s
  146099    5.9000000e+01   0.000000e+00   0.000000e+00     48s
  146099    5.9000000e+01   0.000000e+00   0.000000e+00     48s

Root relaxation: objective 5.900000e+01, 146099 iterations, 43.91 seconds (25.69 work units)

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

     0     0   59.00000    0 1686    9.00000   59.00000   556%     -   50s

Explored 1 nodes (146395 simplex iterations) in 50.08 seconds (30.57 work units)
Thread count was 8 (of 8 available processors)

Solution count 2: 9 3 

Time limit reached
Best objective 9.000000000000e+00, best bound 5.900000000000e+01, gap 555.5556%

Wrote result file './lp_solutions/grafo3647.41.sol'

