
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Mon Nov 25 09:26:52 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo3478.45.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/grafo3478.45.lp
Reading time = 0.12 seconds
: 77847 rows, 2290 columns, 235268 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 77847 rows, 2290 columns and 235268 nonzeros
Model fingerprint: 0x23377775
Variable types: 45 continuous, 2245 integer (2245 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 15438 rows and 55 columns
Presolve time: 0.56s
Presolved: 62409 rows, 2235 columns, 189316 nonzeros
Variable types: 0 continuous, 2235 integer (2190 binary)
Root relaxation presolved: 2235 rows, 64644 columns, 191551 nonzeros


Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
   26092    4.0958217e+01   0.000000e+00   1.389073e+03      5s
   29967    4.1000000e+01   0.000000e+00   0.000000e+00      6s
   29967    4.1000000e+01   0.000000e+00   0.000000e+00      6s

Root relaxation: objective 4.100000e+01, 29967 iterations, 5.11 seconds (4.38 work units)
Total elapsed time = 11.76s (DegenMoves)
Total elapsed time = 15.90s (DegenMoves)

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

     0     0   41.00000    0  328          -   41.00000      -     -   16s
H    0     0                       7.0000000   41.00000   486%     -   17s
     0     0   41.00000    0  555    7.00000   41.00000   486%     -   20s
H    0     0                       8.0000000   41.00000   412%     -   21s
H    0     0                      10.0000000   41.00000   310%     -   21s
     0     0   41.00000    0  559   10.00000   41.00000   310%     -   21s
     0     0   41.00000    0  433   10.00000   41.00000   310%     -   34s
     0     0   41.00000    0  432   10.00000   41.00000   310%     -   35s
     0     0   41.00000    0  395   10.00000   41.00000   310%     -   45s
     0     0   41.00000    0  395   10.00000   41.00000   310%     -   46s
     0     0          -    0        10.00000   41.00000   310%     -   50s

Cutting planes:
  Cover: 30
  Clique: 4
  MIR: 137
  StrongCG: 1
  GUB cover: 6
  Inf proof: 2
  Zero half: 30
  RLT: 60
  PSD: 1

Explored 1 nodes (80627 simplex iterations) in 50.10 seconds (48.48 work units)
Thread count was 8 (of 8 available processors)

Solution count 3: 10 8 7 

Time limit reached
Best objective 1.000000000000e+01, best bound 4.100000000000e+01, gap 310.0000%

Wrote result file './lp_solutions/grafo3478.45.sol'

