
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Mon Nov 25 06:23:01 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo6180.41.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/grafo6180.41.lp
Reading time = 0.14 seconds
: 86479 rows, 1985 columns, 260937 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 86479 rows, 1985 columns and 260937 nonzeros
Model fingerprint: 0xcb34ebc0
Variable types: 41 continuous, 1944 integer (1944 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 24198 rows and 12 columns
Presolve time: 0.53s
Presolved: 62281 rows, 1973 columns, 188683 nonzeros
Variable types: 0 continuous, 1973 integer (1932 binary)
Root relaxation presolved: 1970 rows, 64251 columns, 190656 nonzeros


Root relaxation: objective 4.000000e+01, 1973 iterations, 0.47 seconds (0.45 work units)
Total elapsed time = 5.05s (DegenMoves)

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

     0     0   40.00000    0  319          -   40.00000      -     -    5s
H    0     0                      11.0000000   40.00000   264%     -    6s
     0     0   40.00000    0  702   11.00000   40.00000   264%     -   12s
H    0     0                      14.0000000   40.00000   186%     -   12s
     0     0   40.00000    0  688   14.00000   40.00000   186%     -   13s
     0     0   40.00000    0  591   14.00000   40.00000   186%     -   35s
     0     0   40.00000    0  516   14.00000   40.00000   186%     -   37s
     0     0   40.00000    0  651   14.00000   40.00000   186%     -   50s

Cutting planes:
  Gomory: 1
  Cover: 20
  Clique: 10
  MIR: 99
  StrongCG: 1
  Zero half: 46
  RLT: 52
  Relax-and-lift: 1

Explored 1 nodes (44991 simplex iterations) in 50.06 seconds (49.67 work units)
Thread count was 8 (of 8 available processors)

Solution count 2: 14 11 

Time limit reached
Best objective 1.400000000000e+01, best bound 4.000000000000e+01, gap 185.7143%

Wrote result file './lp_solutions/grafo6180.41.sol'

