
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Mon Nov 25 09:32:45 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo5168.45.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/grafo5168.45.lp
Reading time = 0.42 seconds
: 260353 rows, 3282 columns, 784246 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 260353 rows, 3282 columns and 784246 nonzeros
Model fingerprint: 0xd5479401
Variable types: 59 continuous, 3223 integer (3223 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]
Found heuristic solution: objective 1.0000000
Presolve removed 92038 rows and 24 columns
Presolve time: 1.86s
Presolved: 168315 rows, 3258 columns, 508756 nonzeros
Variable types: 0 continuous, 3258 integer (3199 binary)
Found heuristic solution: objective 7.0000000
Root relaxation presolved: 3243 rows, 171558 columns, 512014 nonzeros


Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
   12818    1.0291381e+02   0.000000e+00   5.918758e+05      5s
   28452    6.6916019e+01   0.000000e+00   2.064738e+05     10s
   44598    6.6801266e+01   0.000000e+00   1.515265e+05     15s
   60522    6.6741146e+01   0.000000e+00   1.813098e+05     20s
   75771    6.6719761e+01   0.000000e+00   4.665541e+04     25s
   91683    6.6708744e+01   0.000000e+00   2.888392e+04     30s
  106932    6.6702799e+01   0.000000e+00   8.884437e+03     35s
  122844    6.6700165e+01   0.000000e+00   5.151091e+03     40s
  133168    6.7000000e+01   0.000000e+00   0.000000e+00     43s
  133168    6.7000000e+01   0.000000e+00   0.000000e+00     43s
  133168    6.7000000e+01   0.000000e+00   0.000000e+00     43s

Root relaxation: objective 6.700000e+01, 133168 iterations, 41.37 seconds (33.25 work units)

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

     0     0   67.00000    0 1920    7.00000   67.00000   857%     -   50s

Explored 1 nodes (134897 simplex iterations) in 50.06 seconds (42.66 work units)
Thread count was 8 (of 8 available processors)

Solution count 2: 7 1 

Time limit reached
Best objective 7.000000000000e+00, best bound 6.700000000000e+01, gap 857.1429%

Wrote result file './lp_solutions/grafo5168.45.sol'

