
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Mon Nov 25 08:15:30 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo6830.43.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/grafo6830.43.lp
Reading time = 0.34 seconds
: 215520 rows, 2614 columns, 648831 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 215520 rows, 2614 columns and 648831 nonzeros
Model fingerprint: 0x1facb5e5
Variable types: 50 continuous, 2564 integer (2564 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 83602 rows and 19 columns
Presolve time: 1.43s
Presolved: 131918 rows, 2595 columns, 398395 nonzeros
Variable types: 0 continuous, 2595 integer (2545 binary)
Found heuristic solution: objective 11.0000000
Root relaxation presolved: 2592 rows, 134510 columns, 400990 nonzeros


Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
   18560    8.8807813e+01   0.000000e+00   2.082448e+05      5s
   41440    5.6813448e+01   0.000000e+00   7.852446e+04     10s
   64050    5.6751142e+01   0.000000e+00   2.150357e+04     15s
   86660    5.6739552e+01   0.000000e+00   1.320797e+03     20s
   96600    5.7000000e+01   0.000000e+00   0.000000e+00     22s
   96600    5.7000000e+01   0.000000e+00   0.000000e+00     22s
   96600    5.7000000e+01   0.000000e+00   0.000000e+00     22s

Root relaxation: objective 5.700000e+01, 96600 iterations, 20.65 seconds (16.42 work units)
Total elapsed time = 45.77s (DegenMoves)

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

     0     0   57.00000    0  703   11.00000   57.00000   418%     -   50s

Explored 1 nodes (111946 simplex iterations) in 50.06 seconds (50.42 work units)
Thread count was 8 (of 8 available processors)

Solution count 1: 11 

Time limit reached
Best objective 1.100000000000e+01, best bound 5.700000000000e+01, gap 418.1818%

Wrote result file './lp_solutions/grafo6830.43.sol'

