
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Mon Nov 25 11:06:03 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo129.48.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/grafo129.48.lp
Reading time = 0.15 seconds
: 92095 rows, 2591 columns, 278266 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 92095 rows, 2591 columns and 278266 nonzeros
Model fingerprint: 0x6c1e234c
Variable types: 48 continuous, 2543 integer (2543 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 13277 rows and 30 columns
Presolve time: 0.68s
Presolved: 78818 rows, 2561 columns, 238941 nonzeros
Variable types: 0 continuous, 2561 integer (2513 binary)
Found heuristic solution: objective 6.0000000
Root relaxation presolved: 2561 rows, 81379 columns, 241502 nonzeros


Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
   21203    4.0937981e+01   0.000000e+00   3.462347e+04      5s
   41532    4.0930509e+01   0.000000e+00   4.561670e+02     10s
   47801    4.1000000e+01   0.000000e+00   0.000000e+00     12s
   47801    4.1000000e+01   0.000000e+00   0.000000e+00     12s

Root relaxation: objective 4.100000e+01, 47801 iterations, 10.84 seconds (9.47 work units)
Total elapsed time = 22.75s (DegenMoves)
Total elapsed time = 25.23s (DegenMoves)

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

     0     0   41.00000    0  472    6.00000   41.00000   583%     -   25s
H    0     0                       8.0000000   41.00000   412%     -   25s
     0     0   41.00000    0  963    8.00000   41.00000   412%     -   43s
     0     0   41.00000    0  942    8.00000   41.00000   412%     -   45s
     0     0          -    0         8.00000   41.00000   412%     -   50s

Cutting planes:
  Gomory: 2
  Cover: 4
  Clique: 7
  MIR: 118
  StrongCG: 1
  GUB cover: 1
  Zero half: 66
  RLT: 56

Explored 1 nodes (74155 simplex iterations) in 50.02 seconds (44.65 work units)
Thread count was 8 (of 8 available processors)

Solution count 2: 8 6 

Time limit reached
Best objective 8.000000000000e+00, best bound 4.100000000000e+01, gap 412.5000%

Wrote result file './lp_solutions/grafo129.48.sol'

