
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Tue Nov 26 04:28:43 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo6401.45.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/grafo6401.45.lp
Reading time = 0.78 seconds
: 365403 rows, 3527 columns, 1099760 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 365403 rows, 3527 columns and 1099760 nonzeros
Model fingerprint: 0xef2e0ce3
Variable types: 62 continuous, 3465 integer (3465 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 -0.0000000
Presolve removed 141897 rows and 27 columns
Presolve time: 3.49s
Presolved: 223506 rows, 3500 columns, 674680 nonzeros
Variable types: 0 continuous, 3500 integer (3438 binary)
Found heuristic solution: objective 7.0000000
Root relaxation presolved: 3491 rows, 226997 columns, 678180 nonzeros


Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
    2057    3.3306979e+02   0.000000e+00   2.094356e+06      5s
   21844    1.0206247e+02   0.000000e+00   1.718355e+06     10s
   33040    8.9996323e+01   0.000000e+00   4.579466e+05     15s
   43660    7.8974511e+01   0.000000e+00   2.291806e+05     20s
   54100    7.4959531e+01   0.000000e+00   8.287086e+04     25s
   64059    7.4949616e+01   0.000000e+00   1.103687e+05     30s
   75406    7.4942174e+01   0.000000e+00   2.487251e+06     35s
   85779    7.4936563e+01   0.000000e+00   1.244632e+05     40s
   96188    7.4932654e+01   0.000000e+00   2.254797e+04     45s

Root relaxation: time limit, 106067 iterations, 46.12 seconds (29.68 work units)

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

     0     0          -    0         7.00000  423.00000  5943%     -   50s

Explored 1 nodes (106067 simplex iterations) in 50.05 seconds (32.80 work units)
Thread count was 8 (of 8 available processors)

Solution count 2: 7 -0 

Time limit reached
Best objective 7.000000000000e+00, best bound 4.230000000000e+02, gap 5942.8571%

Wrote result file './lp_solutions/grafo6401.45.sol'

