
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Tue Nov 26 05:28:45 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo7566.47.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/grafo7566.47.lp
Reading time = 0.18 seconds
: 90107 rows, 2682 columns, 272579 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 90107 rows, 2682 columns and 272579 nonzeros
Model fingerprint: 0x5732c8f6
Variable types: 50 continuous, 2632 integer (2632 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]
Presolve removed 12658 rows and 85 columns
Presolve time: 1.09s
Presolved: 77449 rows, 2597 columns, 235077 nonzeros
Variable types: 0 continuous, 2597 integer (2547 binary)
Root relaxation presolved: 2593 rows, 80042 columns, 237674 nonzeros


Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
   15125    3.8974494e+01   0.000000e+00   9.214755e+04      5s
   32993    3.8947124e+01   0.000000e+00   1.538364e+04     10s
   49093    3.8940409e+01   0.000000e+00   1.201531e+03     15s
   64843    3.8939346e+01   0.000000e+00   2.248841e+01     20s
   67495    3.9000000e+01   0.000000e+00   0.000000e+00     21s
   67495    3.9000000e+01   0.000000e+00   0.000000e+00     21s
   67495    3.9000000e+01   0.000000e+00   0.000000e+00     21s

Root relaxation: objective 3.900000e+01, 67495 iterations, 19.69 seconds (12.90 work units)
Total elapsed time = 38.41s (DegenMoves)
Total elapsed time = 47.28s (DegenMoves)

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

     0     0   39.00000    0  682          -   39.00000      -     -   50s
H    0     0                       7.0000000   39.00000   457%     -   50s

Explored 1 nodes (91020 simplex iterations) in 50.08 seconds (43.47 work units)
Thread count was 8 (of 8 available processors)

Solution count 1: 7 

Time limit reached
Best objective 7.000000000000e+00, best bound 3.900000000000e+01, gap 457.1429%

Wrote result file './lp_solutions/grafo7566.47.sol'

