
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Tue Nov 19 08:10:56 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo7699.39.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/grafo7699.39.lp
Reading time = 0.31 seconds
: 176290 rows, 2093 columns, 530564 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 176290 rows, 2093 columns and 530564 nonzeros
Model fingerprint: 0x82e9e6ab
Variable types: 44 continuous, 2049 integer (2049 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]
Found heuristic solution: objective -0.0000000
Presolve removed 71550 rows and 27 columns
Presolve time: 1.38s
Presolved: 104740 rows, 2066 columns, 316228 nonzeros
Variable types: 0 continuous, 2066 integer (2022 binary)
Found heuristic solution: objective 5.0000000
Root relaxation presolved: 2066 rows, 106806 columns, 318294 nonzeros


Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
   20873    5.1935611e+01   0.000000e+00   2.471871e+05      5s
   48205    4.7852292e+01   0.000000e+00   9.179087e+03     10s
   75373    4.8000000e+01   0.000000e+00   0.000000e+00     15s
   75373    4.8000000e+01   0.000000e+00   0.000000e+00     15s

Root relaxation: objective 4.800000e+01, 75373 iterations, 13.54 seconds (9.89 work units)
Total elapsed time = 28.10s (DegenMoves)
Total elapsed time = 30.62s (DegenMoves)
Total elapsed time = 35.10s (DegenMoves)

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

     0     0   48.00000    0  588    5.00000   48.00000   860%     -   35s
H    0     0                       6.0000000   48.00000   700%     -   35s
     0     0          -    0         6.00000   48.00000   700%     -   50s

Cutting planes:
  Gomory: 40
  Cover: 44
  Clique: 34
  MIR: 146
  StrongCG: 2
  GUB cover: 8
  Zero half: 30
  RLT: 56
  BQP: 2

Explored 1 nodes (95706 simplex iterations) in 50.02 seconds (53.71 work units)
Thread count was 8 (of 8 available processors)

Solution count 3: 6 5 -0 

Time limit reached
Best objective 6.000000000000e+00, best bound 4.800000000000e+01, gap 700.0000%

Wrote result file './lp_solutions/grafo7699.39.sol'

