
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Mon Nov 25 04:04:29 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo3884.39.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/grafo3884.39.lp
Reading time = 0.31 seconds
: 193939 rows, 2600 columns, 584330 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 193939 rows, 2600 columns and 584330 nonzeros
Model fingerprint: 0xbd43a049
Variable types: 53 continuous, 2547 integer (2547 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 71066 rows and 25 columns
Presolve time: 1.45s
Presolved: 122873 rows, 2575 columns, 371506 nonzeros
Variable types: 0 continuous, 2575 integer (2522 binary)
Found heuristic solution: objective 5.0000000
Root relaxation presolved: 2575 rows, 125448 columns, 374081 nonzeros


Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
   17077    6.4967171e+01   0.000000e+00   1.302586e+05      5s
   38677    6.2805244e+01   0.000000e+00   8.378667e+04     10s
   59399    6.2771465e+01   0.000000e+00   7.406978e+03     15s
   80679    6.2762024e+01   0.000000e+00   3.429152e+03     20s
   90241    6.3000000e+01   0.000000e+00   0.000000e+00     22s
   90241    6.3000000e+01   0.000000e+00   0.000000e+00     22s

Root relaxation: objective 6.300000e+01, 90241 iterations, 20.61 seconds (15.51 work units)

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

     0     0   63.00000    0 1481    5.00000   63.00000  1160%     -   50s

Explored 1 nodes (104530 simplex iterations) in 50.03 seconds (44.66 work units)
Thread count was 8 (of 8 available processors)

Solution count 1: 5 

Time limit reached
Best objective 5.000000000000e+00, best bound 6.300000000000e+01, gap 1160.0000%

Wrote result file './lp_solutions/grafo3884.39.sol'

