
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Tue Nov 26 05:15:12 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo6169.47.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/grafo6169.47.lp
Reading time = 0.66 seconds
: 351531 rows, 3993 columns, 1058873 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 351531 rows, 3993 columns and 1058873 nonzeros
Model fingerprint: 0x061fa36f
Variable types: 68 continuous, 3925 integer (3925 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, 7e+01]
Found heuristic solution: objective 3.0000000
Presolve removed 119763 rows and 28 columns
Presolve time: 3.32s
Presolved: 231768 rows, 3965 columns, 700123 nonzeros
Variable types: 0 continuous, 3965 integer (3897 binary)
Found heuristic solution: objective 9.0000000
Root relaxation presolved: 3965 rows, 235733 columns, 704088 nonzeros


Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
    1743    2.9183551e+02   0.000000e+00   4.344209e+06      5s
   18741    1.2683024e+02   0.000000e+00   9.312456e+06     11s
   30630    8.7939339e+01   0.000000e+00   2.559471e+06     16s
   37754    8.3773706e+01   0.000000e+00   9.679911e+05     20s
   48076    8.3686927e+01   0.000000e+00   5.072564e+05     26s
   56756    8.1638821e+01   0.000000e+00   2.006361e+05     30s
   65987    8.1595596e+01   0.000000e+00   1.961044e+05     35s
   74803    8.1566764e+01   0.000000e+00   9.071590e+04     40s
   83587    8.1541743e+01   0.000000e+00   6.531630e+04     45s

Root relaxation: time limit, 91618 iterations, 46.20 seconds (27.42 work units)

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

     0     0          -    0         9.00000  399.00000  4333%     -   50s

Explored 1 nodes (91618 simplex iterations) in 50.04 seconds (30.51 work units)
Thread count was 8 (of 8 available processors)

Solution count 2: 9 3 

Time limit reached
Best objective 9.000000000000e+00, best bound 3.990000000000e+02, gap 4333.3333%

Wrote result file './lp_solutions/grafo6169.47.sol'

