
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Mon Nov 25 10:47:32 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo5580.47.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/grafo5580.47.lp
Reading time = 0.13 seconds
: 77869 rows, 2402 columns, 235379 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 77869 rows, 2402 columns and 235379 nonzeros
Model fingerprint: 0xc030b7fa
Variable types: 45 continuous, 2357 integer (2357 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 10840 rows and 49 columns
Presolve time: 0.57s
Presolved: 67029 rows, 2353 columns, 203279 nonzeros
Variable types: 0 continuous, 2353 integer (2308 binary)
Root relaxation presolved: 2353 rows, 69382 columns, 205632 nonzeros


Root relaxation: objective 3.400000e+01, 18637 iterations, 2.92 seconds (2.44 work units)
Total elapsed time = 9.45s (DegenMoves)
Total elapsed time = 12.09s (DegenMoves)

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

     0     0   34.00000    0  478          -   34.00000      -     -   13s
H    0     0                      14.0000000   34.00000   143%     -   18s
     0     0   34.00000    0  889   14.00000   34.00000   143%     -   39s
     0     0   34.00000    0  857   14.00000   34.00000   143%     -   40s
     0     0          -    0        14.00000   34.00000   143%     -   50s

Cutting planes:
  Gomory: 4
  Lift-and-project: 8
  Cover: 1
  Clique: 11
  MIR: 96
  StrongCG: 1
  GUB cover: 2
  Zero half: 55
  RLT: 57
  BQP: 4

Explored 1 nodes (43314 simplex iterations) in 50.10 seconds (32.06 work units)
Thread count was 8 (of 8 available processors)

Solution count 1: 14 

Time limit reached
Best objective 1.400000000000e+01, best bound 3.400000000000e+01, gap 142.8571%

Wrote result file './lp_solutions/grafo5580.47.sol'

