
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Tue Nov 19 06:25:51 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo11364.38.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/grafo11364.38.lp
Reading time = 0.33 seconds
: 202408 rows, 2294 columns, 609370 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 202408 rows, 2294 columns and 609370 nonzeros
Model fingerprint: 0x6fd8fed2
Variable types: 49 continuous, 2245 integer (2245 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]
Found heuristic solution: objective 1.0000000
Presolve removed 79946 rows and 30 columns
Presolve time: 1.59s
Presolved: 122462 rows, 2264 columns, 369931 nonzeros
Variable types: 0 continuous, 2264 integer (2215 binary)
Found heuristic solution: objective 12.0000000
Root relaxation presolved: 2261 rows, 124723 columns, 372195 nonzeros


Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
   18037    4.7954894e+01   0.000000e+00   4.831005e+05      5s
   40764    4.3897606e+01   0.000000e+00   2.871272e+04     10s
   61431    4.3887992e+01   0.000000e+00   1.858941e+04     15s
   83756    4.3884692e+01   0.000000e+00   1.817026e+02     20s
   93078    4.4000000e+01   0.000000e+00   0.000000e+00     22s
   93078    4.4000000e+01   0.000000e+00   0.000000e+00     22s
   93078    4.4000000e+01   0.000000e+00   0.000000e+00     22s

Root relaxation: objective 4.400000e+01, 93078 iterations, 20.54 seconds (17.71 work units)
Total elapsed time = 38.48s (DegenMoves)
Total elapsed time = 40.22s (DegenMoves)

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

     0     0   44.00000    0  388   12.00000   44.00000   267%     -   41s
H    0     0                      14.0000000   44.00000   214%     -   42s
     0     0          -    0        14.00000   44.00000   214%     -   50s

Cutting planes:
  Gomory: 28
  Cover: 46
  Clique: 9
  MIR: 156
  StrongCG: 1
  GUB cover: 8
  Zero half: 44
  RLT: 66
  BQP: 2

Explored 1 nodes (107319 simplex iterations) in 50.03 seconds (49.46 work units)
Thread count was 8 (of 8 available processors)

Solution count 3: 14 12 1 

Time limit reached
Best objective 1.400000000000e+01, best bound 4.400000000000e+01, gap 214.2857%

Wrote result file './lp_solutions/grafo11364.38.sol'

