
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Tue Nov 19 06:01:30 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo6219.37.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/grafo6219.37.lp
Reading time = 0.14 seconds
: 82703 rows, 1665 columns, 249346 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 82703 rows, 1665 columns and 249346 nonzeros
Model fingerprint: 0xdae9d86f
Variable types: 38 continuous, 1627 integer (1627 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 -0.0000000
Presolve removed 27394 rows and 18 columns
Presolve time: 0.65s
Presolved: 55309 rows, 1647 columns, 167431 nonzeros
Variable types: 0 continuous, 1647 integer (1609 binary)
Found heuristic solution: objective 7.0000000
Root relaxation presolved: 1647 rows, 56956 columns, 169078 nonzeros


Root relaxation: objective 3.300000e+01, 1704 iterations, 0.38 seconds (0.38 work units)

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

     0     0   33.00000    0  366    7.00000   33.00000   371%     -    4s
H    0     0                       9.0000000   33.00000   267%     -    5s
     0     0   33.00000    0  515    9.00000   33.00000   267%     -    9s
H    0     0                      10.0000000   33.00000   230%     -   10s
     0     0   33.00000    0  476   10.00000   33.00000   230%     -   11s
     0     0   33.00000    0  362   10.00000   33.00000   230%     -   22s
     0     0   33.00000    0  330   10.00000   33.00000   230%     -   23s
H    0     0                      11.0000000   33.00000   200%     -   33s
     0     0   32.66667    0  287   11.00000   32.66667   197%     -   33s
     0     0   32.66667    0  285   11.00000   32.66667   197%     -   33s
H    0     0                      12.0000000   32.66667   172%     -   43s
H    0     0                      13.0000000   32.66667   151%     -   43s
H    0     0                      14.0000000   32.66667   133%     -   43s
     0     0   32.66667    0  400   14.00000   32.66667   133%     -   43s
     0     0   32.66667    0  410   14.00000   32.66667   133%     -   45s
     0     0   32.66667    0  456   14.00000   32.66667   133%     -   50s

Cutting planes:
  Gomory: 1
  Cover: 24
  Clique: 12
  MIR: 127
  StrongCG: 1
  Zero half: 30
  RLT: 52

Explored 1 nodes (49535 simplex iterations) in 50.08 seconds (45.62 work units)
Thread count was 8 (of 8 available processors)

Solution count 8: 14 13 12 ... -0

Time limit reached
Best objective 1.400000000000e+01, best bound 3.200000000000e+01, gap 128.5714%

Wrote result file './lp_solutions/grafo6219.37.sol'

