
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Tue Nov 19 08:09:15 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo7513.39.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/grafo7513.39.lp
Reading time = 0.21 seconds
: 127950 rows, 2433 columns, 386104 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 127950 rows, 2433 columns and 386104 nonzeros
Model fingerprint: 0x32b7da9e
Variable types: 50 continuous, 2383 integer (2383 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 43586 rows and 54 columns
Presolve time: 0.80s
Presolved: 84364 rows, 2379 columns, 255658 nonzeros
Variable types: 0 continuous, 2379 integer (2329 binary)
Root relaxation presolved: 2370 rows, 86734 columns, 258037 nonzeros


Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
   22273    5.7977432e+01   0.000000e+00   1.369748e+04      5s
   44410    5.7959267e+01   0.000000e+00   8.984480e+03     10s
   65379    5.7956567e+01   0.000000e+00   9.929163e+01     15s
   69323    5.8000000e+01   0.000000e+00   0.000000e+00     16s
   69323    5.8000000e+01   0.000000e+00   0.000000e+00     16s
   69323    5.8000000e+01   0.000000e+00   0.000000e+00     16s

Root relaxation: objective 5.800000e+01, 69323 iterations, 15.10 seconds (12.63 work units)
Total elapsed time = 36.08s (DegenMoves)

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

     0     0   58.00000    0  656          -   58.00000      -     -   37s
H    0     0                       7.0000000   58.00000   729%     -   38s
H    0     0                      10.0000000   58.00000   480%     -   38s
     0     0          -    0        10.00000   58.00000   480%     -   50s

Cutting planes:
  Gomory: 40
  Cover: 44
  Clique: 38
  MIR: 193
  StrongCG: 1
  GUB cover: 6
  Zero half: 48
  RLT: 80
  BQP: 11

Explored 1 nodes (90243 simplex iterations) in 50.02 seconds (46.09 work units)
Thread count was 8 (of 8 available processors)

Solution count 2: 10 7 

Time limit reached
Best objective 1.000000000000e+01, best bound 5.800000000000e+01, gap 480.0000%

Wrote result file './lp_solutions/grafo7513.39.sol'

