
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Tue Nov 19 07:41:26 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo3623.39.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/grafo3623.39.lp
Reading time = 0.11 seconds
: 68862 rows, 1896 columns, 208083 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 68862 rows, 1896 columns and 208083 nonzeros
Model fingerprint: 0x89ce783e
Variable types: 42 continuous, 1854 integer (1854 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 15184 rows and 34 columns
Presolve time: 0.50s
Presolved: 53678 rows, 1862 columns, 162987 nonzeros
Variable types: 0 continuous, 1862 integer (1820 binary)
Found heuristic solution: objective 3.0000000
Root relaxation presolved: 1862 rows, 55540 columns, 164849 nonzeros


Root relaxation: objective 3.000000e+01, 2182 iterations, 0.48 seconds (0.55 work units)
Total elapsed time = 5.63s (DegenMoves)

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

     0     0   30.00000    0  434    3.00000   30.00000   900%     -    6s
H    0     0                       5.0000000   30.00000   500%     -    6s
H    0     0                       7.0000000   30.00000   329%     -    6s
H    0     0                       8.0000000   30.00000   275%     -    8s
     0     0   30.00000    0  627    8.00000   30.00000   275%     -   14s
     0     0   30.00000    0  572    8.00000   30.00000   275%     -   16s
     0     0   30.00000    0  350    8.00000   30.00000   275%     -   32s
     0     0   30.00000    0  418    8.00000   30.00000   275%     -   33s
     0     0   30.00000    0  540    8.00000   30.00000   275%     -   50s

Cutting planes:
  Gomory: 1
  Cover: 23
  Clique: 5
  MIR: 97
  StrongCG: 1
  GUB cover: 5
  Zero half: 39
  RLT: 45

Explored 1 nodes (52310 simplex iterations) in 50.06 seconds (46.99 work units)
Thread count was 8 (of 8 available processors)

Solution count 4: 8 7 5 3 

Time limit reached
Best objective 8.000000000000e+00, best bound 3.000000000000e+01, gap 275.0000%

Wrote result file './lp_solutions/grafo3623.39.sol'

