
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Fri Nov 22 07:24:38 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo7667.47.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/grafo7667.47.lp
Reading time = 0.29 seconds
: 178318 rows, 2962 columns, 537546 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 178318 rows, 2962 columns and 537546 nonzeros
Model fingerprint: 0x346d711d
Variable types: 54 continuous, 2908 integer (2908 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 2.0000000
Presolve removed 54366 rows and 22 columns
Presolve time: 1.24s
Presolved: 123952 rows, 2940 columns, 374880 nonzeros
Variable types: 0 continuous, 2940 integer (2886 binary)
Found heuristic solution: objective 11.0000000
Root relaxation presolved: 2937 rows, 126889 columns, 377820 nonzeros


Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
   16229    8.4698551e+01   0.000000e+00   4.468455e+05      5s
   35167    6.3851176e+01   0.000000e+00   3.589622e+05     10s
   52908    6.1777470e+01   0.000000e+00   8.022152e+04     15s
   71038    6.1750599e+01   0.000000e+00   1.728094e+04     20s
   89168    6.1737506e+01   0.000000e+00   1.197573e+04     25s
  107298    6.1730620e+01   0.000000e+00   1.590616e+03     30s
  126464    6.1727728e+01   0.000000e+00   2.430929e+03     35s
  137924    6.2000000e+01   0.000000e+00   0.000000e+00     38s
  137924    6.2000000e+01   0.000000e+00   0.000000e+00     38s
  137924    6.2000000e+01   0.000000e+00   0.000000e+00     38s

Root relaxation: objective 6.200000e+01, 137924 iterations, 36.65 seconds (27.96 work units)

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

     0     0   62.00000    0 1856   11.00000   62.00000   464%     -   50s

Explored 1 nodes (143005 simplex iterations) in 50.03 seconds (41.55 work units)
Thread count was 8 (of 8 available processors)

Solution count 2: 11 2 

Time limit reached
Best objective 1.100000000000e+01, best bound 6.200000000000e+01, gap 463.6364%

Wrote result file './lp_solutions/grafo7667.47.sol'

