
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Mon Nov 18 21:18:14 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo5796.37.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/grafo5796.37.lp
Reading time = 0.30 seconds
: 188161 rows, 2435 columns, 566776 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 188161 rows, 2435 columns and 566776 nonzeros
Model fingerprint: 0x1337d30a
Variable types: 51 continuous, 2384 integer (2384 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 73331 rows and 21 columns
Presolve time: 1.33s
Presolved: 114830 rows, 2414 columns, 347220 nonzeros
Variable types: 0 continuous, 2414 integer (2363 binary)
Found heuristic solution: objective 8.0000000
Root relaxation presolved: 2405 rows, 117235 columns, 349634 nonzeros


Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
   20127    7.8324560e+01   0.000000e+00   6.369210e+05      5s
   41528    6.4848856e+01   0.000000e+00   1.623150e+05     10s
   62754    6.4810997e+01   0.000000e+00   1.953195e+04     15s
   84515    6.4798440e+01   0.000000e+00   3.845230e+03     20s
  105731    6.4795420e+01   0.000000e+00   5.366971e+00     25s
  106306    6.5000000e+01   0.000000e+00   0.000000e+00     25s
  106306    6.5000000e+01   0.000000e+00   0.000000e+00     25s
  106306    6.5000000e+01   0.000000e+00   0.000000e+00     25s

Root relaxation: objective 6.500000e+01, 106306 iterations, 23.88 seconds (17.13 work units)
Total elapsed time = 44.76s (DegenMoves)
Total elapsed time = 46.40s (DegenMoves)

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

     0     0   65.00000    0  641    8.00000   65.00000   713%     -   49s
H    0     0                       9.0000000   65.00000   622%     -   49s

Cutting planes:
  Cover: 92
  Clique: 70

Explored 1 nodes (120883 simplex iterations) in 50.05 seconds (45.68 work units)
Thread count was 8 (of 8 available processors)

Solution count 3: 9 8 1 

Time limit reached
Best objective 9.000000000000e+00, best bound 6.500000000000e+01, gap 622.2222%

Wrote result file './lp_solutions/grafo5796.37.sol'

