
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Mon Nov 25 08:12:59 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo6346.43.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/grafo6346.43.lp
Reading time = 0.54 seconds
: 334280 rows, 3312 columns, 1006197 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 334280 rows, 3312 columns and 1006197 nonzeros
Model fingerprint: 0x7f64c768
Variable types: 60 continuous, 3252 integer (3252 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 1.0000000
Presolve removed 132111 rows and 12 columns
Presolve time: 2.23s
Presolved: 202169 rows, 3300 columns, 610422 nonzeros
Variable types: 0 continuous, 3300 integer (3240 binary)
Found heuristic solution: objective 12.0000000
Root relaxation presolved: 3276 rows, 205445 columns, 613722 nonzeros


Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
   10686    1.7431180e+02   0.000000e+00   6.718688e+05      5s
   31077    8.5975523e+01   0.000000e+00   2.288612e+05     10s
   46422    7.2862901e+01   0.000000e+00   4.802715e+05     15s
   61186    6.8806306e+01   0.000000e+00   9.947971e+05     20s
   77575    6.8762881e+01   0.000000e+00   2.077792e+05     25s
   93175    6.8743003e+01   0.000000e+00   2.462584e+04     30s
  108775    6.8730339e+01   0.000000e+00   1.450476e+05     35s
  125155    6.8721439e+01   0.000000e+00   1.104184e+04     40s
  140755    6.8716713e+01   0.000000e+00   3.277717e+03     45s

Root relaxation: time limit, 155945 iterations, 47.46 seconds (36.77 work units)

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

     0     0          -    0        12.00000  421.00000  3408%     -   50s

Explored 1 nodes (155945 simplex iterations) in 50.03 seconds (39.49 work units)
Thread count was 8 (of 8 available processors)

Solution count 2: 12 1 

Time limit reached
Best objective 1.200000000000e+01, best bound 4.210000000000e+02, gap 3408.3333%

Wrote result file './lp_solutions/grafo6346.43.sol'

