
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Mon Nov 25 11:19:30 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo6774.48.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/grafo6774.48.lp
Reading time = 0.22 seconds
: 133656 rows, 3118 columns, 403802 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 133656 rows, 3118 columns and 403802 nonzeros
Model fingerprint: 0x890066f3
Variable types: 57 continuous, 3061 integer (3061 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 23184 rows and 1 columns
Presolve time: 0.85s
Presolved: 110472 rows, 3117 columns, 334648 nonzeros
Variable types: 0 continuous, 3117 integer (3060 binary)
Found heuristic solution: objective 7.0000000
Root relaxation presolved: 3081 rows, 113553 columns, 337765 nonzeros


Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
   16426    5.6003113e+01   0.000000e+00   4.191534e+05      5s
   31302    5.5968665e+01   0.000000e+00   2.757788e+05     10s
   45529    5.5955192e+01   0.000000e+00   3.144300e+04     15s
   60577    5.5946307e+01   0.000000e+00   4.175714e+04     20s
   74713    5.5941035e+01   0.000000e+00   7.239961e+03     25s
   88849    5.5938450e+01   0.000000e+00   1.399003e+03     30s
  102985    5.5937769e+01   0.000000e+00   1.143474e+02     35s
  108293    5.6000000e+01   0.000000e+00   0.000000e+00     37s
  108293    5.6000000e+01   0.000000e+00   0.000000e+00     37s
  108293    5.6000000e+01   0.000000e+00   0.000000e+00     37s

Root relaxation: objective 5.600000e+01, 108293 iterations, 35.81 seconds (27.13 work units)

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

     0     0   56.00000    0 1974    7.00000   56.00000   700%     -   50s

Explored 1 nodes (113386 simplex iterations) in 50.05 seconds (40.43 work units)
Thread count was 8 (of 8 available processors)

Solution count 1: 7 

Time limit reached
Best objective 7.000000000000e+00, best bound 5.600000000000e+01, gap 700.0000%

Wrote result file './lp_solutions/grafo6774.48.sol'

