
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Mon Nov 25 03:44:20 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo11333.39.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/grafo11333.39.lp
Reading time = 0.12 seconds
: 76127 rows, 2213 columns, 230360 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 76127 rows, 2213 columns and 230360 nonzeros
Model fingerprint: 0x21d4a524
Variable types: 47 continuous, 2166 integer (2166 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 15076 rows and 22 columns
Presolve time: 0.48s
Presolved: 61051 rows, 2191 columns, 185702 nonzeros
Variable types: 0 continuous, 2191 integer (2144 binary)
Found heuristic solution: objective 7.0000000
Root relaxation presolved: 2188 rows, 63239 columns, 187893 nonzeros


Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
   27577    4.3968087e+01   0.000000e+00   7.565727e+03      5s
   48444    4.4000000e+01   0.000000e+00   0.000000e+00      9s
   48444    4.4000000e+01   0.000000e+00   0.000000e+00      9s
   48444    4.4000000e+01   0.000000e+00   0.000000e+00      9s

Root relaxation: objective 4.400000e+01, 48444 iterations, 8.61 seconds (7.15 work units)
Total elapsed time = 17.74s (DegenMoves)

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

     0     0   44.00000    0  520    7.00000   44.00000   529%     -   18s
H    0     0                       8.0000000   44.00000   450%     -   18s
     0     0   44.00000    0  789    8.00000   44.00000   450%     -   30s
H    0     0                      10.0000000   44.00000   340%     -   31s
     0     0   44.00000    0  790   10.00000   44.00000   340%     -   31s
     0     0   44.00000    0  668   10.00000   44.00000   340%     -   50s

Cutting planes:
  Gomory: 2
  Lift-and-project: 35
  Cover: 2
  Clique: 7
  MIR: 99
  Zero half: 14
  RLT: 61
  BQP: 3

Explored 1 nodes (79495 simplex iterations) in 50.08 seconds (40.99 work units)
Thread count was 8 (of 8 available processors)

Solution count 3: 10 8 7 

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

Wrote result file './lp_solutions/grafo11333.39.sol'

