
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Tue Nov 26 04:59:10 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo6942.46.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/grafo6942.46.lp
Reading time = 0.54 seconds
: 214476 rows, 3334 columns, 646661 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 214476 rows, 3334 columns and 646661 nonzeros
Model fingerprint: 0x357e6105
Variable types: 60 continuous, 3274 integer (3274 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 63682 rows and 33 columns
Presolve time: 2.20s
Presolved: 150794 rows, 3301 columns, 456174 nonzeros
Variable types: 0 continuous, 3301 integer (3241 binary)
Found heuristic solution: objective 7.0000000
Root relaxation presolved: 3295 rows, 154089 columns, 459475 nonzeros


Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
   10265    1.0572793e+02   0.000000e+00   7.390522e+06      5s
   26722    6.5842084e+01   0.000000e+00   4.425024e+04     10s
   39592    6.2806603e+01   0.000000e+00   3.247820e+04     15s
   51882    6.2795286e+01   0.000000e+00   1.590685e+05     20s
   62412    6.2790967e+01   0.000000e+00   6.669100e+03     25s
   73527    6.2789491e+01   0.000000e+00   2.802028e+01     30s
   75760    6.3000000e+01   0.000000e+00   0.000000e+00     31s
   75760    6.3000000e+01   0.000000e+00   0.000000e+00     31s
   75760    6.3000000e+01   0.000000e+00   0.000000e+00     31s

Root relaxation: objective 6.300000e+01, 75760 iterations, 28.57 seconds (17.97 work units)

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

     0     0   63.00000    0 1671    7.00000   63.00000   800%     -   50s

Explored 1 nodes (83157 simplex iterations) in 50.06 seconds (35.70 work units)
Thread count was 8 (of 8 available processors)

Solution count 1: 7 

Time limit reached
Best objective 7.000000000000e+00, best bound 6.300000000000e+01, gap 800.0000%

Wrote result file './lp_solutions/grafo6942.46.sol'

