
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Wed Nov 13 17:33:01 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo861.12.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/grafo861.12.lp
Reading time = 0.01 seconds
: 1986 rows, 173 columns, 6009 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 1986 rows, 173 columns and 6009 nonzeros
Model fingerprint: 0xab6f26f6
Variable types: 10 continuous, 163 integer (163 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 4.0000000
Presolve removed 732 rows and 3 columns
Presolve time: 0.01s
Presolved: 1254 rows, 170 columns, 3907 nonzeros
Variable types: 0 continuous, 170 integer (160 binary)

Root relaxation: objective 7.000000e+00, 97 iterations, 0.01 seconds (0.00 work units)

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

     0     0    7.00000    0   18    4.00000    7.00000  75.0%     -    0s
     0     0    7.00000    0   59    4.00000    7.00000  75.0%     -    0s
H    0     0                       5.0000000    7.00000  40.0%     -    0s
     0     0    7.00000    0   53    5.00000    7.00000  40.0%     -    0s
     0     0    7.00000    0   33    5.00000    7.00000  40.0%     -    0s
     0     0    7.00000    0   32    5.00000    7.00000  40.0%     -    0s
     0     0    7.00000    0   36    5.00000    7.00000  40.0%     -    0s
     0     0    7.00000    0   36    5.00000    7.00000  40.0%     -    0s
     0     0    7.00000    0   27    5.00000    7.00000  40.0%     -    0s
     0     0    7.00000    0   34    5.00000    7.00000  40.0%     -    0s
     0     0    7.00000    0   27    5.00000    7.00000  40.0%     -    0s
     0     0    6.83333    0   27    5.00000    6.83333  36.7%     -    0s
     0     0    6.80000    0   33    5.00000    6.80000  36.0%     -    0s
     0     0    6.77778    0   23    5.00000    6.77778  35.6%     -    0s
     0     2    6.77778    0   23    5.00000    6.77778  35.6%     -    0s

Cutting planes:
  Cover: 16
  Clique: 2
  MIR: 8
  Inf proof: 103
  Zero half: 3
  RLT: 11

Explored 1805 nodes (53932 simplex iterations) in 0.90 seconds (0.86 work units)
Thread count was 8 (of 8 available processors)

Solution count 2: 5 4 

Optimal solution found (tolerance 1.00e-04)
Best objective 5.000000000000e+00, best bound 5.000000000000e+00, gap 0.0000%

Wrote result file './lp_solutions/grafo861.12.sol'

