
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Mon Nov 25 07:47:48 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo3573.43.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/grafo3573.43.lp
Reading time = 0.16 seconds
: 102349 rows, 2485 columns, 309154 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 102349 rows, 2485 columns and 309154 nonzeros
Model fingerprint: 0x1f9adfce
Variable types: 49 continuous, 2436 integer (2436 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 4.0000000
Presolve removed 23416 rows and 19 columns
Presolve time: 0.65s
Presolved: 78933 rows, 2466 columns, 239413 nonzeros
Variable types: 0 continuous, 2466 integer (2417 binary)
Found heuristic solution: objective 10.0000000
Root relaxation presolved: 2463 rows, 81396 columns, 241879 nonzeros


Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
   21766    5.3702343e+01   0.000000e+00   3.477733e+04      5s
   44955    5.3678246e+01   0.000000e+00   1.781004e+03     10s
   59913    5.4000000e+01   0.000000e+00   0.000000e+00     13s
   59913    5.4000000e+01   0.000000e+00   0.000000e+00     13s
   59913    5.4000000e+01   0.000000e+00   0.000000e+00     13s

Root relaxation: objective 5.400000e+01, 59913 iterations, 12.65 seconds (10.00 work units)
Total elapsed time = 22.83s (DegenMoves)

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

     0     0   54.00000    0  483   10.00000   54.00000   440%     -   23s
H    0     0                      14.0000000   54.00000   286%     -   24s
     0     0   54.00000    0  771   14.00000   54.00000   286%     -   34s
     0     0   54.00000    0  761   14.00000   54.00000   286%     -   35s
     0     0   54.00000    0  783   14.00000   54.00000   286%     -   50s

Cutting planes:
  Gomory: 6
  Lift-and-project: 39
  Cover: 8
  Clique: 9
  MIR: 111
  StrongCG: 2
  Zero half: 8
  RLT: 52
  BQP: 2

Explored 1 nodes (87288 simplex iterations) in 50.03 seconds (47.11 work units)
Thread count was 8 (of 8 available processors)

Solution count 3: 14 10 4 

Time limit reached
Best objective 1.400000000000e+01, best bound 5.400000000000e+01, gap 285.7143%

Wrote result file './lp_solutions/grafo3573.43.sol'

