
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Mon Nov 25 08:02:55 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo5630.43.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/grafo5630.43.lp
Reading time = 0.13 seconds
: 82102 rows, 2199 columns, 247988 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 82102 rows, 2199 columns and 247988 nonzeros
Model fingerprint: 0xceb73b7d
Variable types: 43 continuous, 2156 integer (2156 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 21565 rows and 44 columns
Presolve time: 0.53s
Presolved: 60537 rows, 2155 columns, 183647 nonzeros
Variable types: 0 continuous, 2155 integer (2112 binary)
Root relaxation presolved: 2151 rows, 62688 columns, 185802 nonzeros


Root relaxation: objective 4.700000e+01, 27236 iterations, 4.28 seconds (3.77 work units)
Total elapsed time = 5.11s (DegenMoves)
Total elapsed time = 10.48s (DegenMoves)

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

     0     0   47.00000    0  364          -   47.00000      -     -   12s
H    0     0                      10.0000000   47.00000   370%     -   13s
     0     0   47.00000    0  642   10.00000   47.00000   370%     -   19s
H    0     0                      15.0000000   47.00000   213%     -   19s
     0     0   47.00000    0  592   15.00000   47.00000   213%     -   21s
     0     0   47.00000    0  451   15.00000   47.00000   213%     -   41s
     0     0   47.00000    0  460   15.00000   47.00000   213%     -   42s
     0     0   47.00000    0  794   15.00000   47.00000   213%     -   50s

Cutting planes:
  Gomory: 1
  Cover: 39
  Clique: 16
  MIR: 169
  StrongCG: 6
  GUB cover: 1
  Zero half: 61
  RLT: 90
  BQP: 2

Explored 1 nodes (67735 simplex iterations) in 50.08 seconds (47.75 work units)
Thread count was 8 (of 8 available processors)

Solution count 2: 15 10 

Time limit reached
Best objective 1.500000000000e+01, best bound 4.700000000000e+01, gap 213.3333%

Wrote result file './lp_solutions/grafo5630.43.sol'

