
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Fri Nov 22 06:05:49 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo7072.43.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/grafo7072.43.lp
Reading time = 0.14 seconds
: 87599 rows, 2171 columns, 264363 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 87599 rows, 2171 columns and 264363 nonzeros
Model fingerprint: 0xfbe9ec68
Variable types: 43 continuous, 2128 integer (2128 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 22655 rows and 17 columns
Presolve time: 0.55s
Presolved: 64944 rows, 2154 columns, 196805 nonzeros
Variable types: 0 continuous, 2154 integer (2111 binary)
Found heuristic solution: objective 8.0000000
Root relaxation presolved: 2151 rows, 67095 columns, 198959 nonzeros


Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
   26617    5.3827091e+01   0.000000e+00   7.908878e+02      5s
   33528    5.4000000e+01   0.000000e+00   0.000000e+00      6s
   33528    5.4000000e+01   0.000000e+00   0.000000e+00      6s
   33528    5.4000000e+01   0.000000e+00   0.000000e+00      6s

Root relaxation: objective 5.400000e+01, 33528 iterations, 5.71 seconds (4.62 work units)
Total elapsed time = 16.62s (DegenMoves)

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

     0     0   54.00000    0  684    8.00000   54.00000   575%     -   18s
H    0     0                       9.0000000   54.00000   500%     -   21s
H    0     0                      10.0000000   54.00000   440%     -   33s
     0     0   53.00000    0  940   10.00000   53.00000   430%     -   33s
     0     0   53.00000    0  914   10.00000   53.00000   430%     -   34s
H    0     0                      11.0000000   53.00000   382%     -   36s
     0     0   53.00000    0  966   11.00000   53.00000   382%     -   50s

Cutting planes:
  Gomory: 2
  Cover: 15
  Clique: 6
  MIR: 203
  StrongCG: 1
  Zero half: 82
  RLT: 82
  BQP: 1

Explored 1 nodes (67291 simplex iterations) in 50.08 seconds (45.09 work units)
Thread count was 8 (of 8 available processors)

Solution count 5: 11 10 9 ... 2

Time limit reached
Best objective 1.100000000000e+01, best bound 5.300000000000e+01, gap 381.8182%

Wrote result file './lp_solutions/grafo7072.43.sol'

