
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Tue Nov 19 05:13:38 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo6075.36.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/grafo6075.36.lp
Reading time = 0.45 seconds
: 268482 rows, 2438 columns, 807799 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 268482 rows, 2438 columns and 807799 nonzeros
Model fingerprint: 0x0a15116f
Variable types: 51 continuous, 2387 integer (2387 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 -0.0000000
Presolve removed 115965 rows and 21 columns
Presolve time: 2.01s
Presolved: 152517 rows, 2417 columns, 460380 nonzeros
Variable types: 0 continuous, 2417 integer (2366 binary)
Found heuristic solution: objective 10.0000000
Root relaxation presolved: 2408 rows, 154925 columns, 462797 nonzeros


Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
   16496    1.1132742e+02   0.000000e+00   2.568595e+05      5s
   39605    6.6916121e+01   0.000000e+00   1.370004e+05     10s
   61346    6.2800744e+01   0.000000e+00   6.065760e+04     15s
   81338    6.2777347e+01   0.000000e+00   1.358193e+04     20s
  103472    6.2771840e+01   0.000000e+00   3.868002e+01     25s
  103960    6.3000000e+01   0.000000e+00   0.000000e+00     25s
  103960    6.3000000e+01   0.000000e+00   0.000000e+00     25s
  103960    6.3000000e+01   0.000000e+00   0.000000e+00     25s

Root relaxation: objective 6.300000e+01, 103960 iterations, 23.18 seconds (17.37 work units)

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

     0     0   63.00000    0 1346   10.00000   63.00000   530%     -   50s

Explored 1 nodes (114465 simplex iterations) in 50.05 seconds (44.04 work units)
Thread count was 8 (of 8 available processors)

Solution count 2: 10 -0 

Time limit reached
Best objective 1.000000000000e+01, best bound 6.300000000000e+01, gap 530.0000%

Wrote result file './lp_solutions/grafo6075.36.sol'

