
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Mon Nov 25 10:10:32 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo3606.46.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/grafo3606.46.lp
Reading time = 0.15 seconds
: 96618 rows, 2464 columns, 291851 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 96618 rows, 2464 columns and 291851 nonzeros
Model fingerprint: 0x6ec3302b
Variable types: 48 continuous, 2416 integer (2416 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 17717 rows and 21 columns
Presolve time: 0.64s
Presolved: 78901 rows, 2443 columns, 239031 nonzeros
Variable types: 0 continuous, 2443 integer (2395 binary)
Found heuristic solution: objective 6.0000000
Root relaxation presolved: 2443 rows, 81344 columns, 241474 nonzeros


Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
   24573    3.7763013e+01   0.000000e+00   4.866901e+03      5s
   29913    3.8000000e+01   0.000000e+00   0.000000e+00      6s
   29913    3.8000000e+01   0.000000e+00   0.000000e+00      6s

Root relaxation: objective 3.800000e+01, 29913 iterations, 5.31 seconds (4.42 work units)
Total elapsed time = 14.73s (DegenMoves)

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

     0     0   38.00000    0  648    6.00000   38.00000   533%     -   34s
H    0     0                       9.0000000   38.00000   322%     -   34s
     0     0   38.00000    0  922    9.00000   38.00000   322%     -   49s

Cutting planes:
  Gomory: 1
  Clique: 20
  MIR: 51
  Zero half: 4
  RLT: 28
  BQP: 5

Explored 1 nodes (68937 simplex iterations) in 50.04 seconds (61.36 work units)
Thread count was 8 (of 8 available processors)

Solution count 2: 9 6 

Time limit reached
Best objective 9.000000000000e+00, best bound 3.800000000000e+01, gap 322.2222%

Wrote result file './lp_solutions/grafo3606.46.sol'

