
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Mon Nov 25 05:01:35 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo3471.40.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/grafo3471.40.lp
Reading time = 0.11 seconds
: 67830 rows, 2157 columns, 205330 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 67830 rows, 2157 columns and 205330 nonzeros
Model fingerprint: 0xd7f1f008
Variable types: 47 continuous, 2110 integer (2110 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 12501 rows and 67 columns
Presolve time: 0.42s
Presolved: 55329 rows, 2090 columns, 168222 nonzeros
Variable types: 0 continuous, 2090 integer (2043 binary)
Root relaxation presolved: 29234 rows, 28185 columns, 116032 nonzeros


Root relaxation: objective 4.000000e+01, 5989 iterations, 3.77 seconds (3.25 work units)
Total elapsed time = 8.22s (DegenMoves)
Total elapsed time = 10.32s (DegenMoves)

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

     0     0   40.00000    0  644          -   40.00000      -     -   10s
H    0     0                       8.0000000   40.00000   400%     -   10s
H    0     0                      10.0000000   40.00000   300%     -   10s
     0     0   40.00000    0  738   10.00000   40.00000   300%     -   18s
     0     0   40.00000    0  720   10.00000   40.00000   300%     -   19s
     0     0  postponed    0        10.00000   40.00000   300%     -   50s

Cutting planes:
  Gomory: 6
  Lift-and-project: 23
  Cover: 15
  Clique: 1
  MIR: 158
  StrongCG: 1
  GUB cover: 1
  Zero half: 74
  RLT: 51
  PSD: 1

Explored 1 nodes (50219 simplex iterations) in 50.08 seconds (48.12 work units)
Thread count was 8 (of 8 available processors)

Solution count 2: 10 8 

Time limit reached
Best objective 1.000000000000e+01, best bound 4.000000000000e+01, gap 300.0000%

Wrote result file './lp_solutions/grafo3471.40.sol'

