
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Tue Nov 26 05:00:01 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo6990.46.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/grafo6990.46.lp
Reading time = 0.27 seconds
: 127425 rows, 2599 columns, 384377 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 127425 rows, 2599 columns and 384377 nonzeros
Model fingerprint: 0x2a34e037
Variable types: 48 continuous, 2551 integer (2551 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 3.0000000
Presolve removed 34538 rows and 8 columns
Presolve time: 0.98s
Presolved: 92887 rows, 2591 columns, 281287 nonzeros
Variable types: 0 continuous, 2591 integer (2543 binary)
Found heuristic solution: objective 10.0000000
Root relaxation presolved: 2581 rows, 95468 columns, 283878 nonzeros


Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
   19146    4.5978403e+01   0.000000e+00   6.986210e+04      5s
   37682    4.5953704e+01   0.000000e+00   2.281939e+04     10s
   54062    4.5947328e+01   0.000000e+00   3.282890e+03     15s
   70022    4.5946107e+01   0.000000e+00   4.006567e-02     20s
   70063    4.6000000e+01   0.000000e+00   0.000000e+00     20s
   70063    4.6000000e+01   0.000000e+00   0.000000e+00     20s
   70063    4.6000000e+01   0.000000e+00   0.000000e+00     20s

Root relaxation: objective 4.600000e+01, 70063 iterations, 18.99 seconds (12.56 work units)
Total elapsed time = 42.09s (DegenMoves)
Total elapsed time = 46.96s (DegenMoves)

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

     0     0   46.00000    0  734   10.00000   46.00000   360%     -   48s
H    0     0                      12.0000000   46.00000   283%     -   48s

Cutting planes:
  Cover: 34
  Clique: 15
  MIR: 117

Explored 1 nodes (89529 simplex iterations) in 50.03 seconds (41.83 work units)
Thread count was 8 (of 8 available processors)

Solution count 3: 12 10 3 

Time limit reached
Best objective 1.200000000000e+01, best bound 4.600000000000e+01, gap 283.3333%

Wrote result file './lp_solutions/grafo6990.46.sol'

