
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Mon Nov 25 04:35:33 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo7184.39.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/grafo7184.39.lp
Reading time = 0.17 seconds
: 109391 rows, 2313 columns, 330263 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 109391 rows, 2313 columns and 330263 nonzeros
Model fingerprint: 0x0ce23713
Variable types: 49 continuous, 2264 integer (2264 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 2.0000000
Presolve removed 31038 rows and 25 columns
Presolve time: 0.79s
Presolved: 78353 rows, 2288 columns, 237544 nonzeros
Variable types: 0 continuous, 2288 integer (2239 binary)
Found heuristic solution: objective 8.0000000
Root relaxation presolved: 2288 rows, 80641 columns, 239832 nonzeros


Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
   22615    5.5896299e+01   0.000000e+00   8.819520e+03      5s
   45143    5.5880711e+01   0.000000e+00   1.907155e+03     10s
   59187    5.6000000e+01   0.000000e+00   0.000000e+00     13s
   59187    5.6000000e+01   0.000000e+00   0.000000e+00     13s

Root relaxation: objective 5.600000e+01, 59187 iterations, 12.12 seconds (10.35 work units)
Total elapsed time = 28.16s (DegenMoves)
Total elapsed time = 35.47s (DegenMoves)

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

     0     0   56.00000    0  645    8.00000   56.00000   600%     -   37s
H    0     0                      11.0000000   56.00000   409%     -   37s
     0     0          -    0        11.00000   56.00000   409%     -   50s

Cutting planes:
  Gomory: 30
  Cover: 33
  Clique: 17
  MIR: 117
  GUB cover: 5
  Zero half: 22
  RLT: 53
  BQP: 1

Explored 1 nodes (87850 simplex iterations) in 50.02 seconds (53.52 work units)
Thread count was 8 (of 8 available processors)

Solution count 3: 11 8 2 

Time limit reached
Best objective 1.100000000000e+01, best bound 5.600000000000e+01, gap 409.0909%

Wrote result file './lp_solutions/grafo7184.39.sol'

