
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Tue Nov 26 02:12:44 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo5269.42.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/grafo5269.42.lp
Reading time = 0.52 seconds
: 263732 rows, 2380 columns, 793206 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 263732 rows, 2380 columns and 793206 nonzeros
Model fingerprint: 0x035f7322
Variable types: 47 continuous, 2333 integer (2333 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 111720 rows and 23 columns
Presolve time: 2.75s
Presolved: 152012 rows, 2357 columns, 458344 nonzeros
Variable types: 0 continuous, 2357 integer (2310 binary)
Found heuristic solution: objective 5.0000000
Root relaxation presolved: 2354 rows, 154366 columns, 460701 nonzeros


Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
   10175    7.9063813e+01   0.000000e+00   2.778789e+05      5s
   32796    4.7918074e+01   0.000000e+00   1.652609e+05     10s
   52291    4.7811445e+01   0.000000e+00   2.092502e+04     15s
   72388    4.7792999e+01   0.000000e+00   1.962120e+03     20s
   85538    4.8000000e+01   0.000000e+00   0.000000e+00     24s
   85538    4.8000000e+01   0.000000e+00   0.000000e+00     24s
   85538    4.8000000e+01   0.000000e+00   0.000000e+00     24s

Root relaxation: objective 4.800000e+01, 85538 iterations, 20.44 seconds (12.48 work units)
Total elapsed time = 39.17s (DegenMoves)
Total elapsed time = 41.53s (DegenMoves)

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

     0     0   48.00000    0  430    5.00000   48.00000   860%     -   44s
H    0     0                       8.0000000   48.00000   500%     -   44s
     0     0          -    0         8.00000   48.00000   500%     -   50s

Cutting planes:
  Gomory: 26
  Cover: 41
  Clique: 30
  MIR: 182
  GUB cover: 5
  Zero half: 30
  RLT: 77
  BQP: 10

Explored 1 nodes (96827 simplex iterations) in 50.06 seconds (40.31 work units)
Thread count was 8 (of 8 available processors)

Solution count 2: 8 5 

Time limit reached
Best objective 8.000000000000e+00, best bound 4.800000000000e+01, gap 500.0000%

Wrote result file './lp_solutions/grafo5269.42.sol'

