
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Tue Nov 26 02:16:06 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo5867.42.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/grafo5867.42.lp
Reading time = 0.21 seconds
: 109566 rows, 2014 columns, 330150 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 109566 rows, 2014 columns and 330150 nonzeros
Model fingerprint: 0xc2f0f817
Variable types: 41 continuous, 1973 integer (1973 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 35702 rows and 27 columns
Presolve time: 1.09s
Presolved: 73864 rows, 1987 columns, 223348 nonzeros
Variable types: 0 continuous, 1987 integer (1946 binary)
Root relaxation presolved: 1987 rows, 75851 columns, 225335 nonzeros


Root relaxation: objective 3.600000e+01, 2997 iterations, 1.61 seconds (1.62 work units)
Total elapsed time = 14.01s (DegenMoves)

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

     0     0   36.00000    0  549          -   36.00000      -     -   15s
H    0     0                       5.0000000   36.00000   620%     -   15s
H    0     0                       7.0000000   36.00000   414%     -   15s
H    0     0                       8.0000000   36.00000   350%     -   15s
     0     0   36.00000    0  828    8.00000   36.00000   350%     -   33s
     0     0   36.00000    0  787    8.00000   36.00000   350%     -   35s
     0     0   36.00000    0  778    8.00000   36.00000   350%     -   50s

Cutting planes:
  Gomory: 3
  Cover: 9
  Clique: 28
  MIR: 85
  GUB cover: 1
  Zero half: 57
  RLT: 65
  BQP: 7

Explored 1 nodes (26799 simplex iterations) in 50.12 seconds (36.10 work units)
Thread count was 8 (of 8 available processors)

Solution count 3: 8 7 5 

Time limit reached
Best objective 8.000000000000e+00, best bound 3.600000000000e+01, gap 350.0000%

Wrote result file './lp_solutions/grafo5867.42.sol'

