
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Mon Nov 25 07:06:40 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo5166.42.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/grafo5166.42.lp
Reading time = 0.22 seconds
: 141581 rows, 2315 columns, 426648 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 141581 rows, 2315 columns and 426648 nonzeros
Model fingerprint: 0x70e72ecb
Variable types: 46 continuous, 2269 integer (2269 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 48831 rows and 20 columns
Presolve time: 0.97s
Presolved: 92750 rows, 2295 columns, 280687 nonzeros
Variable types: 0 continuous, 2295 integer (2249 binary)
Found heuristic solution: objective 10.0000000
Root relaxation presolved: 2286 rows, 95036 columns, 282982 nonzeros


Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
   22010    4.2803583e+01   0.000000e+00   2.523408e+05      5s
   43705    4.3000000e+01   0.000000e+00   0.000000e+00      9s
   43705    4.3000000e+01   0.000000e+00   0.000000e+00      9s
   43705    4.3000000e+01   0.000000e+00   0.000000e+00      9s

Root relaxation: objective 4.300000e+01, 43705 iterations, 8.09 seconds (6.63 work units)
Total elapsed time = 22.81s (DegenMoves)
Total elapsed time = 27.23s (DegenMoves)

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

     0     0   43.00000    0  610   10.00000   43.00000   330%     -   29s
H    0     0                      12.0000000   43.00000   258%     -   29s
     0     0   43.00000    0  873   12.00000   43.00000   258%     -   48s
     0     0          -    0        12.00000   43.00000   258%     -   50s

Cutting planes:
  Gomory: 3
  Clique: 21
  MIR: 54
  Zero half: 4
  RLT: 45
  BQP: 3

Explored 1 nodes (70988 simplex iterations) in 50.02 seconds (55.19 work units)
Thread count was 8 (of 8 available processors)

Solution count 2: 12 10 

Time limit reached
Best objective 1.200000000000e+01, best bound 4.300000000000e+01, gap 258.3333%

Wrote result file './lp_solutions/grafo5166.42.sol'

