
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Mon Nov 25 08:53:17 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo5932.44.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/grafo5932.44.lp
Reading time = 0.17 seconds
: 102555 rows, 2406 columns, 309624 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 102555 rows, 2406 columns and 309624 nonzeros
Model fingerprint: 0x2590bca9
Variable types: 46 continuous, 2360 integer (2360 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 28190 rows and 11 columns
Presolve time: 0.68s
Presolved: 74365 rows, 2395 columns, 225607 nonzeros
Variable types: 0 continuous, 2395 integer (2349 binary)
Root relaxation presolved: 2389 rows, 76754 columns, 228002 nonzeros


Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
   24365    4.5946383e+01   0.000000e+00   2.741682e+04      5s
   47079    4.5933850e+01   0.000000e+00   3.529847e+02     10s
   55136    4.6000000e+01   0.000000e+00   0.000000e+00     12s
   55136    4.6000000e+01   0.000000e+00   0.000000e+00     12s
   55136    4.6000000e+01   0.000000e+00   0.000000e+00     12s

Root relaxation: objective 4.600000e+01, 55136 iterations, 11.01 seconds (10.79 work units)
Total elapsed time = 21.43s (DegenMoves)
Total elapsed time = 26.65s (DegenMoves)

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

     0     0   46.00000    0  404          -   46.00000      -     -   27s
H    0     0                       9.0000000   46.00000   411%     -   29s
     0     0   46.00000    0  690    9.00000   46.00000   411%     -   36s
H    0     0                      16.0000000   46.00000   187%     -   37s
     0     0   46.00000    0  618   16.00000   46.00000   187%     -   38s
     0     0   46.00000    0  687   16.00000   46.00000   187%     -   50s

Cutting planes:
  Gomory: 3
  Lift-and-project: 37
  Cover: 11
  Clique: 9
  MIR: 111
  Zero half: 77
  RLT: 46

Explored 1 nodes (86836 simplex iterations) in 50.09 seconds (49.09 work units)
Thread count was 8 (of 8 available processors)

Solution count 2: 16 9 

Time limit reached
Best objective 1.600000000000e+01, best bound 4.600000000000e+01, gap 187.5000%

Wrote result file './lp_solutions/grafo5932.44.sol'

