
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Tue Nov 19 07:44:48 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo4066.39.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/grafo4066.39.lp
Reading time = 0.50 seconds
: 296800 rows, 2069 columns, 892033 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 296800 rows, 2069 columns and 892033 nonzeros
Model fingerprint: 0x68ff26dc
Variable types: 42 continuous, 2027 integer (2027 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 139517 rows and 7 columns
Presolve time: 2.19s
Presolved: 157283 rows, 2062 columns, 473689 nonzeros
Variable types: 0 continuous, 2062 integer (2020 binary)
Root relaxation presolved: 2053 rows, 159336 columns, 475751 nonzeros


Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
   16859    9.0254901e+01   0.000000e+00   2.840286e+05      5s
   44893    5.2933242e+01   0.000000e+00   3.230123e+04     10s
   73876    5.2886204e+01   0.000000e+00   6.938898e+03     15s
  102718    5.2878185e+01   0.000000e+00   6.774204e+02     20s
  109800    5.3000000e+01   0.000000e+00   0.000000e+00     21s
  109800    5.3000000e+01   0.000000e+00   0.000000e+00     21s
  109800    5.3000000e+01   0.000000e+00   0.000000e+00     21s

Root relaxation: objective 5.300000e+01, 109800 iterations, 18.81 seconds (13.07 work units)
Total elapsed time = 41.38s (DegenMoves)
Total elapsed time = 46.61s (DegenMoves)

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

     0     0   53.00000    0  560          -   53.00000      -     -   47s
H    0     0                       3.0000000   53.00000  1667%     -   50s

Cutting planes:
  Cover: 59
  Clique: 86
  MIR: 164
  StrongCG: 2

Explored 1 nodes (123290 simplex iterations) in 50.06 seconds (49.77 work units)
Thread count was 8 (of 8 available processors)

Solution count 1: 3 

Time limit reached
Best objective 3.000000000000e+00, best bound 5.300000000000e+01, gap 1666.6667%

Wrote result file './lp_solutions/grafo4066.39.sol'

