
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Tue Nov 26 05:20:17 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo6691.47.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/grafo6691.47.lp
Reading time = 1.16 seconds
: 582997 rows, 3644 columns, 1752615 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 582997 rows, 3644 columns and 1752615 nonzeros
Model fingerprint: 0xb0d3ef8b
Variable types: 62 continuous, 3582 integer (3582 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]
Presolve removed 253480 rows and 12 columns (presolve time = 5s) ...
Presolve removed 253480 rows and 12 columns
Presolve time: 5.31s
Presolved: 329517 rows, 3632 columns, 992569 nonzeros
Variable types: 0 continuous, 3632 integer (3570 binary)
Found heuristic solution: objective 7.0000000
Root relaxation presolved: 3626 rows, 333143 columns, 996201 nonzeros


Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
       0    9.2056000e+02   0.000000e+00   1.365876e+06      8s
   12479    1.8312568e+02   0.000000e+00   4.347599e+07     10s
   34273    1.3656995e+02   0.000000e+00   7.805720e+05     16s
   46023    1.2397232e+02   0.000000e+00   2.746873e+05     21s
   56931    1.0794661e+02   0.000000e+00   3.205347e+06     26s
   66148    9.3128545e+01   0.000000e+00   1.412658e+06     31s
   75871    8.2572421e+01   0.000000e+00   4.207152e+05     36s
   84960    7.7875051e+01   0.000000e+00   3.532394e+05     41s
   94467    7.5837090e+01   0.000000e+00   2.829950e+05     46s

Root relaxation: time limit, 103583 iterations, 43.59 seconds (25.56 work units)

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

     0     0          -    0         7.00000  448.00000  6300%     -   50s

Explored 1 nodes (103583 simplex iterations) in 50.08 seconds (30.58 work units)
Thread count was 8 (of 8 available processors)

Solution count 1: 7 

Time limit reached
Best objective 7.000000000000e+00, best bound 4.480000000000e+02, gap 6300.0000%

Wrote result file './lp_solutions/grafo6691.47.sol'

