
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Tue Nov 19 08:05:53 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo7291.39.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/grafo7291.39.lp
Reading time = 1.33 seconds
: 822901 rows, 3100 columns, 2471876 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 822901 rows, 3100 columns and 2471876 nonzeros
Model fingerprint: 0xc888bf2d
Variable types: 57 continuous, 3043 integer (3043 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 2.0000000
Presolve removed 396308 rows and 25 columns (presolve time = 5s) ...
Presolve removed 396308 rows and 25 columns
Presolve time: 6.64s
Presolved: 426593 rows, 3075 columns, 1283427 nonzeros
Variable types: 0 continuous, 3075 integer (3018 binary)
Found heuristic solution: objective 11.0000000
Root relaxation presolved: 3072 rows, 429665 columns, 1286502 nonzeros


Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
       0    1.1200000e+03   0.000000e+00   2.477316e+06      9s
   10148    2.2941067e+02   0.000000e+00   2.932415e+06     10s
   34881    1.5453244e+02   0.000000e+00   6.891976e+05     16s
   51831    1.3749490e+02   0.000000e+00   3.689036e+06     21s
   67686    1.2580850e+02   0.000000e+00   8.691855e+05     26s
   81623    9.0655607e+01   0.000000e+00   4.502080e+05     31s
   94653    8.5983816e+01   0.000000e+00   2.646175e+05     36s
  105980    7.8980357e+01   0.000000e+00   1.588660e+06     40s
  124379    7.3942755e+01   0.000000e+00   1.326320e+05     46s

Root relaxation: time limit, 137009 iterations, 42.68 seconds (33.58 work units)

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

     0     0          -    0        11.00000  532.00000  4736%     -   50s

Explored 1 nodes (137009 simplex iterations) in 50.05 seconds (40.59 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 5.320000000000e+02, gap 4736.3636%

Wrote result file './lp_solutions/grafo7291.39.sol'

