
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Mon Nov 25 06:28:03 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo6354.41.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/grafo6354.41.lp
Reading time = 0.16 seconds
: 103187 rows, 2505 columns, 311815 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 103187 rows, 2505 columns and 311815 nonzeros
Model fingerprint: 0x9f05babf
Variable types: 51 continuous, 2454 integer (2454 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 2.0000000
Presolve removed 23290 rows and 20 columns
Presolve time: 0.67s
Presolved: 79897 rows, 2485 columns, 242409 nonzeros
Variable types: 0 continuous, 2485 integer (2434 binary)
Found heuristic solution: objective 12.0000000
Root relaxation presolved: 2482 rows, 82379 columns, 244894 nonzeros


Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
   21523    5.7764457e+01   0.000000e+00   5.353656e+04      5s
   45099    5.7724115e+01   0.000000e+00   4.104298e+03     10s
   58876    5.8000000e+01   0.000000e+00   0.000000e+00     13s
   58876    5.8000000e+01   0.000000e+00   0.000000e+00     13s
   58876    5.8000000e+01   0.000000e+00   0.000000e+00     13s

Root relaxation: objective 5.800000e+01, 58876 iterations, 12.42 seconds (9.53 work units)
Total elapsed time = 27.88s (DegenMoves)
Total elapsed time = 30.29s (DegenMoves)

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

     0     0   58.00000    0  685   12.00000   58.00000   383%     -   31s
H    0     0                      16.0000000   58.00000   262%     -   31s
     0     0          -    0        16.00000   58.00000   262%     -   50s

Cutting planes:
  Gomory: 50
  Cover: 40
  Clique: 24
  MIR: 235
  StrongCG: 2
  GUB cover: 8
  Zero half: 54
  RLT: 71
  BQP: 5

Explored 1 nodes (84837 simplex iterations) in 50.02 seconds (46.08 work units)
Thread count was 8 (of 8 available processors)

Solution count 3: 16 12 2 

Time limit reached
Best objective 1.600000000000e+01, best bound 5.800000000000e+01, gap 262.5000%

Wrote result file './lp_solutions/grafo6354.41.sol'

