
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Tue Nov 26 00:34:54 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo3986.40.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/grafo3986.40.lp
Reading time = 0.38 seconds
: 183332 rows, 2810 columns, 552780 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 183332 rows, 2810 columns and 552780 nonzeros
Model fingerprint: 0x784445a3
Variable types: 55 continuous, 2755 integer (2755 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 3.0000000
Presolve removed 64975 rows and 33 columns
Presolve time: 1.66s
Presolved: 118357 rows, 2777 columns, 358519 nonzeros
Variable types: 0 continuous, 2777 integer (2722 binary)
Found heuristic solution: objective 11.0000000
Root relaxation presolved: 2774 rows, 121131 columns, 361296 nonzeros


Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
   11473    6.8986740e+01   0.000000e+00   4.684518e+05      5s
   26710    5.7898333e+01   0.000000e+00   1.682194e+05     10s
   40883    5.7879285e+01   0.000000e+00   3.215883e+04     15s
   55021    5.7871475e+01   0.000000e+00   1.699894e+04     20s
   68954    5.7867026e+01   0.000000e+00   4.335139e+03     25s
   82741    5.7864742e+01   0.000000e+00   3.236669e+03     30s
   95482    5.7863830e+01   0.000000e+00   1.692085e+02     35s
  103041    5.8000000e+01   0.000000e+00   0.000000e+00     38s
  103041    5.8000000e+01   0.000000e+00   0.000000e+00     38s
  103041    5.8000000e+01   0.000000e+00   0.000000e+00     38s

Root relaxation: objective 5.800000e+01, 103041 iterations, 35.95 seconds (23.57 work units)

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

     0     0   58.00000    0 1727   11.00000   58.00000   427%     -   50s

Explored 1 nodes (107909 simplex iterations) in 50.05 seconds (35.72 work units)
Thread count was 8 (of 8 available processors)

Solution count 2: 11 3 

Time limit reached
Best objective 1.100000000000e+01, best bound 5.800000000000e+01, gap 427.2727%

Wrote result file './lp_solutions/grafo3986.40.sol'

