
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Mon Nov 25 10:18:55 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo6074.46.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/grafo6074.46.lp
Reading time = 0.31 seconds
: 194744 rows, 3164 columns, 587236 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 194744 rows, 3164 columns and 587236 nonzeros
Model fingerprint: 0x70ae1d27
Variable types: 57 continuous, 3107 integer (3107 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, 6e+01]
Presolve removed 62083 rows and 36 columns
Presolve time: 1.29s
Presolved: 132661 rows, 3128 columns, 401474 nonzeros
Variable types: 0 continuous, 3128 integer (3071 binary)
Root relaxation presolved: 3114 rows, 135775 columns, 404602 nonzeros


Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
   16041    6.7819512e+01   0.000000e+00   4.948370e+05      5s
   34187    6.1698260e+01   0.000000e+00   4.263854e+04     10s
   51211    6.1675211e+01   0.000000e+00   2.051541e+03     15s
   58384    6.2000000e+01   0.000000e+00   0.000000e+00     17s
   58384    6.2000000e+01   0.000000e+00   0.000000e+00     17s
   58384    6.2000000e+01   0.000000e+00   0.000000e+00     17s

Root relaxation: objective 6.200000e+01, 58384 iterations, 15.73 seconds (12.70 work units)
Total elapsed time = 38.38s (DegenMoves)
Total elapsed time = 45.19s (DegenMoves)

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

     0     0   62.00000    0  718          -   62.00000      -     -   48s
H    0     0                       7.0000000   62.00000   786%     -   50s

Cutting planes:
  Cover: 61
  Clique: 44
  MIR: 261
  StrongCG: 1
  GUB cover: 5

Explored 1 nodes (78186 simplex iterations) in 50.09 seconds (54.19 work units)
Thread count was 8 (of 8 available processors)

Solution count 1: 7 

Time limit reached
Best objective 7.000000000000e+00, best bound 6.200000000000e+01, gap 785.7143%

Wrote result file './lp_solutions/grafo6074.46.sol'

