
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Tue Nov 26 06:13:29 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo3684.50.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/grafo3684.50.lp
Reading time = 0.51 seconds
: 266339 rows, 3628 columns, 802496 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 266339 rows, 3628 columns and 802496 nonzeros
Model fingerprint: 0xff6b71fd
Variable types: 61 continuous, 3567 integer (3567 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]
Found heuristic solution: objective 3.0000000
Presolve removed 84091 rows and 26 columns
Presolve time: 2.57s
Presolved: 182248 rows, 3602 columns, 550792 nonzeros
Variable types: 0 continuous, 3602 integer (3541 binary)
Found heuristic solution: objective 9.0000000
Root relaxation presolved: 3590 rows, 185838 columns, 554394 nonzeros


Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
    8266    1.2023451e+02   0.000000e+00   3.908703e+07      5s
   22187    6.9673210e+01   0.000000e+00   1.228088e+06     10s
   32470    5.8613453e+01   0.000000e+00   1.404758e+06     15s
   42807    5.8559747e+01   0.000000e+00   3.814774e+05     20s
   53434    5.8515985e+01   0.000000e+00   1.187994e+05     25s
   64314    5.8481068e+01   0.000000e+00   1.335089e+05     30s
   74514    5.8460376e+01   0.000000e+00   8.905688e+04     35s
   85394    5.8445813e+01   0.000000e+00   3.303185e+04     40s
   95594    5.8436229e+01   0.000000e+00   3.979701e+04     45s

Root relaxation: time limit, 105508 iterations, 47.09 seconds (26.88 work units)

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

     0     0          -    0         9.00000  369.00000  4000%     -   50s

Explored 1 nodes (105508 simplex iterations) in 50.03 seconds (29.19 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 3.690000000000e+02, gap 4000.0000%

Wrote result file './lp_solutions/grafo3684.50.sol'

