
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Tue Nov 19 07:29:40 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo11519.39.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/grafo11519.39.lp
Reading time = 0.17 seconds
: 101781 rows, 2160 columns, 307238 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 101781 rows, 2160 columns and 307238 nonzeros
Model fingerprint: 0xd96bd1ff
Variable types: 46 continuous, 2114 integer (2114 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 29268 rows and 15 columns
Presolve time: 0.65s
Presolved: 72513 rows, 2145 columns, 219827 nonzeros
Variable types: 0 continuous, 2145 integer (2099 binary)
Found heuristic solution: objective 8.0000000
Root relaxation presolved: 2138 rows, 74651 columns, 221972 nonzeros


Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
   23705    4.2725026e+01   0.000000e+00   1.505785e+04      5s
   43435    4.3000000e+01   0.000000e+00   0.000000e+00      9s
   43435    4.3000000e+01   0.000000e+00   0.000000e+00      9s
   43435    4.3000000e+01   0.000000e+00   0.000000e+00      9s

Root relaxation: objective 4.300000e+01, 43435 iterations, 8.06 seconds (6.63 work units)
Total elapsed time = 16.76s (DegenMoves)

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

     0     0   43.00000    0  502    8.00000   43.00000   438%     -   17s
H    0     0                      11.0000000   43.00000   291%     -   17s
     0     0   43.00000    0  796   11.00000   43.00000   291%     -   28s
     0     0   43.00000    0  691   11.00000   43.00000   291%     -   31s
     0     0   43.00000    0  453   11.00000   43.00000   291%     -   50s

Cutting planes:
  Gomory: 2
  Lift-and-project: 34
  Cover: 16
  Clique: 9
  MIR: 129
  StrongCG: 1
  Zero half: 57
  RLT: 59

Explored 1 nodes (72889 simplex iterations) in 50.09 seconds (44.71 work units)
Thread count was 8 (of 8 available processors)

Solution count 2: 11 8 

Time limit reached
Best objective 1.100000000000e+01, best bound 4.300000000000e+01, gap 290.9091%

Wrote result file './lp_solutions/grafo11519.39.sol'

