
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Wed Nov 13 01:09:14 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo1089.23.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/grafo1089.23.lp
Reading time = 0.02 seconds
: 4549 rows, 379 columns, 13701 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 4549 rows, 379 columns and 13701 nonzeros
Model fingerprint: 0x42d6c4a7
Variable types: 12 continuous, 367 integer (367 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 339 rows and 7 columns
Presolve time: 0.09s
Presolved: 4210 rows, 372 columns, 12738 nonzeros
Variable types: 0 continuous, 372 integer (360 binary)

Root relaxation: objective 1.000000e+01, 195 iterations, 0.04 seconds (0.01 work units)

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

     0     0   10.00000    0   38          -   10.00000      -     -    0s
H    0     0                       3.0000000   10.00000   233%     -    0s
H    0     0                       5.0000000   10.00000   100%     -    0s
     0     0   10.00000    0   39    5.00000   10.00000   100%     -    0s
     0     0   10.00000    0   48    5.00000   10.00000   100%     -    0s
H    0     0                       6.0000000   10.00000  66.7%     -    0s
     0     0    9.50000    0   37    6.00000    9.50000  58.3%     -    0s
     0     0    9.00000    0   39    6.00000    9.00000  50.0%     -    0s
     0     0    9.00000    0   45    6.00000    9.00000  50.0%     -    0s
     0     0    9.00000    0   43    6.00000    9.00000  50.0%     -    1s
     0     0    9.00000    0   43    6.00000    9.00000  50.0%     -    1s
     0     0    9.00000    0   36    6.00000    9.00000  50.0%     -    1s
     0     0    9.00000    0   37    6.00000    9.00000  50.0%     -    1s
     0     0    9.00000    0   34    6.00000    9.00000  50.0%     -    1s
     0     0    9.00000    0   39    6.00000    9.00000  50.0%     -    1s
     0     0    9.00000    0   39    6.00000    9.00000  50.0%     -    1s
     0     2    9.00000    0   39    6.00000    9.00000  50.0%     -    1s
  1042   254    8.00000   17   29    6.00000    8.00000  33.3%  29.3    5s

Cutting planes:
  Gomory: 4
  Cover: 20
  MIR: 20
  StrongCG: 3
  Inf proof: 83
  Zero half: 6
  RLT: 9

Explored 2241 nodes (67088 simplex iterations) in 7.62 seconds (2.11 work units)
Thread count was 8 (of 8 available processors)

Solution count 3: 6 5 3 

Optimal solution found (tolerance 1.00e-04)
Best objective 6.000000000000e+00, best bound 6.000000000000e+00, gap 0.0000%

Wrote result file './lp_solutions/grafo1089.23.sol'

