
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Tue Nov 26 00:59:20 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo10563.41.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/grafo10563.41.lp
Reading time = 0.20 seconds
: 89483 rows, 2102 columns, 270147 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 89483 rows, 2102 columns and 270147 nonzeros
Model fingerprint: 0x9e279305
Variable types: 44 continuous, 2058 integer (2058 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 25605 rows and 32 columns
Presolve time: 0.75s
Presolved: 63878 rows, 2070 columns, 193824 nonzeros
Variable types: 0 continuous, 2070 integer (2026 binary)
Root relaxation presolved: 2070 rows, 65948 columns, 195894 nonzeros


Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
   21112    3.5756280e+01   0.000000e+00   7.655043e+03      5s
   29497    3.6000000e+01   0.000000e+00   0.000000e+00      7s
   29497    3.6000000e+01   0.000000e+00   0.000000e+00      7s

Root relaxation: objective 3.600000e+01, 29497 iterations, 6.02 seconds (4.02 work units)
Total elapsed time = 14.75s (DegenMoves)
Total elapsed time = 16.70s (DegenMoves)

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

     0     0   36.00000    0  527          -   36.00000      -     -   18s
H    0     0                       7.0000000   36.00000   414%     -   21s
H    0     0                       8.0000000   36.00000   350%     -   21s
H    0     0                      11.0000000   36.00000   227%     -   21s
H    0     0                      12.0000000   36.00000   200%     -   21s
     0     0   36.00000    0  658   12.00000   36.00000   200%     -   30s
     0     0   36.00000    0  632   12.00000   36.00000   200%     -   31s
     0     0   36.00000    0  775   12.00000   36.00000   200%     -   50s

Cutting planes:
  Gomory: 1
  Lift-and-project: 36
  Cover: 20
  Clique: 11
  MIR: 77
  StrongCG: 1
  GUB cover: 5
  Zero half: 19
  RLT: 55

Explored 1 nodes (55981 simplex iterations) in 50.12 seconds (33.79 work units)
Thread count was 8 (of 8 available processors)

Solution count 4: 12 11 8 7 

Time limit reached
Best objective 1.200000000000e+01, best bound 3.600000000000e+01, gap 200.0000%

Wrote result file './lp_solutions/grafo10563.41.sol'

