
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Tue Nov 26 04:02:33 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo6432.44.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/grafo6432.44.lp
Reading time = 0.29 seconds
: 161333 rows, 2699 columns, 486452 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 161333 rows, 2699 columns and 486452 nonzeros
Model fingerprint: 0xb7b464a2
Variable types: 51 continuous, 2648 integer (2648 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 58344 rows and 47 columns
Presolve time: 1.32s
Presolved: 102989 rows, 2652 columns, 312002 nonzeros
Variable types: 0 continuous, 2652 integer (2601 binary)
Root relaxation presolved: 2649 rows, 105638 columns, 314654 nonzeros


Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
   13720    4.3868826e+01   0.000000e+00   1.394911e+05      5s
   31617    4.3729709e+01   0.000000e+00   2.535423e+04     10s
   47997    4.3713501e+01   0.000000e+00   7.153025e+03     15s
   56606    4.4000000e+01   0.000000e+00   0.000000e+00     18s
   56606    4.4000000e+01   0.000000e+00   0.000000e+00     18s
   56606    4.4000000e+01   0.000000e+00   0.000000e+00     18s

Root relaxation: objective 4.400000e+01, 56606 iterations, 16.53 seconds (9.78 work units)
Total elapsed time = 32.37s (DegenMoves)
Total elapsed time = 39.54s (DegenMoves)
Total elapsed time = 40.19s (DegenMoves)

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

     0     0   44.00000    0  397          -   44.00000      -     -   40s
H    0     0                      10.0000000   44.00000   340%     -   43s
     0     0          -    0        10.00000   44.00000   340%     -   50s

Cutting planes:
  Gomory: 40
  Cover: 47
  Clique: 17
  MIR: 77
  StrongCG: 1
  GUB cover: 9
  Zero half: 37
  RLT: 51
  BQP: 7

Explored 1 nodes (77529 simplex iterations) in 50.02 seconds (41.89 work units)
Thread count was 8 (of 8 available processors)

Solution count 1: 10 

Time limit reached
Best objective 1.000000000000e+01, best bound 4.400000000000e+01, gap 340.0000%

Wrote result file './lp_solutions/grafo6432.44.sol'

