
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Mon Nov 25 02:49:49 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo3765.38.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/grafo3765.38.lp
Reading time = 0.10 seconds
: 64519 rows, 1892 columns, 195064 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 64519 rows, 1892 columns and 195064 nonzeros
Model fingerprint: 0x8a205f9c
Variable types: 43 continuous, 1849 integer (1849 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 13306 rows and 34 columns
Presolve time: 0.44s
Presolved: 51213 rows, 1858 columns, 155506 nonzeros
Variable types: 0 continuous, 1858 integer (1815 binary)
Found heuristic solution: objective 5.0000000
Root relaxation presolved: 1858 rows, 53071 columns, 157364 nonzeros


Root relaxation: objective 3.900000e+01, 3123 iterations, 1.09 seconds (1.37 work units)
Total elapsed time = 12.18s (DegenMoves)

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

     0     0   39.00000    0  732    5.00000   39.00000   680%     -   15s
H    0     0                       6.0000000   39.00000   550%     -   15s
H    0     0                       8.0000000   39.00000   387%     -   15s
     0     0   39.00000    0  904    8.00000   39.00000   387%     -   30s
     0     0   39.00000    0  883    8.00000   39.00000   387%     -   31s
     0     0   39.00000    0 1015    8.00000   39.00000   387%     -   50s

Cutting planes:
  Gomory: 5
  Cover: 4
  Clique: 5
  MIR: 113
  StrongCG: 1
  GUB cover: 1
  Zero half: 58
  RLT: 68

Explored 1 nodes (43477 simplex iterations) in 50.06 seconds (46.25 work units)
Thread count was 8 (of 8 available processors)

Solution count 3: 8 6 5 

Time limit reached
Best objective 8.000000000000e+00, best bound 3.900000000000e+01, gap 387.5000%

Wrote result file './lp_solutions/grafo3765.38.sol'

