
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Mon Nov 25 08:55:49 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo6229.44.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/grafo6229.44.lp
Reading time = 0.17 seconds
: 105785 rows, 2361 columns, 319244 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 105785 rows, 2361 columns and 319244 nonzeros
Model fingerprint: 0xa41a7d74
Variable types: 47 continuous, 2314 integer (2314 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 26093 rows and 34 columns
Presolve time: 0.75s
Presolved: 79692 rows, 2327 columns, 241372 nonzeros
Variable types: 0 continuous, 2327 integer (2280 binary)
Found heuristic solution: objective 6.0000000
Root relaxation presolved: 2327 rows, 82019 columns, 243699 nonzeros


Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
   23174    4.0748131e+01   0.000000e+00   1.817097e+04      5s
   38274    4.1000000e+01   0.000000e+00   0.000000e+00      8s
   38274    4.1000000e+01   0.000000e+00   0.000000e+00      8s

Root relaxation: objective 4.100000e+01, 38274 iterations, 7.10 seconds (5.84 work units)
Total elapsed time = 19.14s (DegenMoves)
Total elapsed time = 20.35s (DegenMoves)

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

     0     0   41.00000    0  511    6.00000   41.00000   583%     -   21s
H    0     0                      10.0000000   41.00000   310%     -   21s
     0     0   41.00000    0  898   10.00000   41.00000   310%     -   33s
     0     0   41.00000    0  893   10.00000   41.00000   310%     -   35s
     0     0   41.00000    0  837   10.00000   41.00000   310%     -   50s

Cutting planes:
  Gomory: 4
  Lift-and-project: 24
  Cover: 9
  Clique: 21
  MIR: 101
  Zero half: 13
  RLT: 44
  BQP: 1

Explored 1 nodes (67756 simplex iterations) in 50.03 seconds (49.30 work units)
Thread count was 8 (of 8 available processors)

Solution count 2: 10 6 

Time limit reached
Best objective 1.000000000000e+01, best bound 4.099999999999e+01, gap 310.0000%

Wrote result file './lp_solutions/grafo6229.44.sol'

