
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Mon Nov 25 10:55:06 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo6339.47.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/grafo6339.47.lp
Reading time = 0.33 seconds
: 190967 rows, 3451 columns, 576325 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 190967 rows, 3451 columns and 576325 nonzeros
Model fingerprint: 0xa61d4a14
Variable types: 62 continuous, 3389 integer (3389 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, 6e+01]
Presolve removed 46778 rows and 1 columns
Presolve time: 1.33s
Presolved: 144189 rows, 3450 columns, 436457 nonzeros
Variable types: 0 continuous, 3450 integer (3388 binary)
Found heuristic solution: objective 5.0000000
Root relaxation presolved: 3411 rows, 147600 columns, 439907 nonzeros


Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
   13618    7.6812406e+01   0.000000e+00   2.322846e+05      5s
   26461    6.5686972e+01   0.000000e+00   3.158184e+05     10s
   40215    6.5600784e+01   0.000000e+00   4.134882e+04     15s
   52773    6.5570223e+01   0.000000e+00   2.397182e+04     20s
   63693    6.5558515e+01   0.000000e+00   5.539105e+03     25s
   74067    6.5552527e+01   0.000000e+00   2.680397e+03     30s
   84987    6.5549665e+01   0.000000e+00   3.254457e+02     35s
   93614    6.6000000e+01   0.000000e+00   0.000000e+00     40s
   93614    6.6000000e+01   0.000000e+00   0.000000e+00     40s
   93614    6.6000000e+01   0.000000e+00   0.000000e+00     40s

Root relaxation: objective 6.600000e+01, 93614 iterations, 38.17 seconds (23.99 work units)
Total elapsed time = 40.61s (DegenMoves)

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

     0     0   66.00000    0 1704    5.00000   66.00000  1220%     -   50s

Explored 1 nodes (96695 simplex iterations) in 50.05 seconds (34.25 work units)
Thread count was 8 (of 8 available processors)

Solution count 1: 5 

Time limit reached
Best objective 5.000000000000e+00, best bound 6.600000000000e+01, gap 1220.0000%

Wrote result file './lp_solutions/grafo6339.47.sol'

