
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Tue Nov 19 07:57:26 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo6341.39.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/grafo6341.39.lp
Reading time = 0.38 seconds
: 231609 rows, 2083 columns, 696523 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 231609 rows, 2083 columns and 696523 nonzeros
Model fingerprint: 0x48e71f3a
Variable types: 43 continuous, 2040 integer (2040 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 102110 rows and 2 columns
Presolve time: 1.53s
Presolved: 129499 rows, 2081 columns, 390401 nonzeros
Variable types: 0 continuous, 2081 integer (2038 binary)
Found heuristic solution: objective 4.0000000
Root relaxation presolved: 2077 rows, 131576 columns, 392482 nonzeros


Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
   22085    7.1903312e+01   0.000000e+00   1.317131e+06      5s
   49904    5.3811688e+01   0.000000e+00   1.150906e+05     10s
   78800    5.3790531e+01   0.000000e+00   1.448570e+02     15s
   82913    5.4000000e+01   0.000000e+00   0.000000e+00     16s
   82913    5.4000000e+01   0.000000e+00   0.000000e+00     16s
   82913    5.4000000e+01   0.000000e+00   0.000000e+00     16s

Root relaxation: objective 5.400000e+01, 82913 iterations, 14.06 seconds (10.26 work units)
Total elapsed time = 25.45s (DegenMoves)

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

     0     0   54.00000    0  379    4.00000   54.00000  1250%     -   30s
H    0     0                       5.0000000   54.00000   980%     -   30s
     0     0   54.00000    0  712    5.00000   54.00000   980%     -   49s

Cutting planes:
  Cover: 3
  Clique: 21
  MIR: 74
  Zero half: 5
  RLT: 35
  BQP: 5

Explored 1 nodes (101041 simplex iterations) in 50.06 seconds (52.87 work units)
Thread count was 8 (of 8 available processors)

Solution count 2: 5 4 

Time limit reached
Best objective 5.000000000000e+00, best bound 5.400000000000e+01, gap 980.0000%

Wrote result file './lp_solutions/grafo6341.39.sol'

