
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Mon Nov 25 09:15:07 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo7360.44.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/grafo7360.44.lp
Reading time = 0.19 seconds
: 109149 rows, 2718 columns, 329882 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 109149 rows, 2718 columns and 329882 nonzeros
Model fingerprint: 0x12119b6d
Variable types: 53 continuous, 2665 integer (2665 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 3.0000000
Presolve removed 20714 rows and 2 columns
Presolve time: 0.61s
Presolved: 88435 rows, 2716 columns, 268212 nonzeros
Variable types: 0 continuous, 2716 integer (2663 binary)
Found heuristic solution: objective 14.0000000
Root relaxation presolved: 2689 rows, 91124 columns, 270928 nonzeros


Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
   19325    5.2951802e+01   0.000000e+00   6.631618e+04      5s
   38290    5.2926682e+01   0.000000e+00   3.741624e+04     10s
   57126    5.2916199e+01   0.000000e+00   1.555987e+04     15s
   74123    5.2911742e+01   0.000000e+00   1.545594e+03     20s
   89629    5.3000000e+01   0.000000e+00   0.000000e+00     24s
   89629    5.3000000e+01   0.000000e+00   0.000000e+00     24s
   89629    5.3000000e+01   0.000000e+00   0.000000e+00     24s

Root relaxation: objective 5.300000e+01, 89629 iterations, 23.45 seconds (21.58 work units)
Total elapsed time = 42.72s (DegenMoves)
Total elapsed time = 45.84s (DegenMoves)

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

     0     0   53.00000    0  787   14.00000   53.00000   279%     -   50s

Explored 1 nodes (111504 simplex iterations) in 50.08 seconds (52.56 work units)
Thread count was 8 (of 8 available processors)

Solution count 2: 14 3 

Time limit reached
Best objective 1.400000000000e+01, best bound 5.300000000000e+01, gap 278.5714%

Wrote result file './lp_solutions/grafo7360.44.sol'

