
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Mon Nov 25 09:41:59 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo6070.45.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/grafo6070.45.lp
Reading time = 0.19 seconds
: 115603 rows, 2645 columns, 349045 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 115603 rows, 2645 columns and 349045 nonzeros
Model fingerprint: 0x23eb73d2
Variable types: 51 continuous, 2594 integer (2594 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 26159 rows and 37 columns
Presolve time: 0.79s
Presolved: 89444 rows, 2608 columns, 271077 nonzeros
Variable types: 0 continuous, 2608 integer (2557 binary)
Root relaxation presolved: 2605 rows, 92049 columns, 273685 nonzeros


Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
   18952    4.9688567e+01   0.000000e+00   2.748750e+04      5s
   39754    4.9654688e+01   0.000000e+00   7.908910e+03     10s
   59390    4.9647498e+01   0.000000e+00   3.014289e+03     15s
   67479    5.0000000e+01   0.000000e+00   0.000000e+00     17s
   67479    5.0000000e+01   0.000000e+00   0.000000e+00     17s
   67479    5.0000000e+01   0.000000e+00   0.000000e+00     17s

Root relaxation: objective 5.000000e+01, 67479 iterations, 16.13 seconds (14.38 work units)
Total elapsed time = 36.39s (DegenMoves)
Total elapsed time = 41.18s (DegenMoves)

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

     0     0   50.00000    0  576          -   50.00000      -     -   43s
H    0     0                       4.0000000   50.00000  1150%     -   44s
H    0     0                       6.0000000   50.00000   733%     -   44s
     0     0          -    0         6.00000   50.00000   733%     -   50s

Cutting planes:
  Gomory: 31
  Cover: 48
  Clique: 15
  MIR: 188
  StrongCG: 1
  GUB cover: 14
  Zero half: 52
  RLT: 71
  BQP: 4

Explored 1 nodes (92604 simplex iterations) in 50.02 seconds (52.28 work units)
Thread count was 8 (of 8 available processors)

Solution count 2: 6 4 

Time limit reached
Best objective 6.000000000000e+00, best bound 5.000000000000e+01, gap 733.3333%

Wrote result file './lp_solutions/grafo6070.45.sol'

