
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Tue Nov 19 07:37:13 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo3126.39.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/grafo3126.39.lp
Reading time = 1.13 seconds
: 637348 rows, 3014 columns, 1915113 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 637348 rows, 3014 columns and 1915113 nonzeros
Model fingerprint: 0x534a49e8
Variable types: 55 continuous, 2959 integer (2959 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 302823 rows and 6 columns
Presolve time: 4.70s
Presolved: 334525 rows, 3008 columns, 1006999 nonzeros
Variable types: 0 continuous, 3008 integer (2953 binary)
Found heuristic solution: objective 7.0000000
Root relaxation presolved: 3005 rows, 337530 columns, 1010007 nonzeros


Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
       0    1.0953400e+03   0.000000e+00   1.069131e+06      6s
   20570    2.2334817e+02   0.000000e+00   7.289146e+07     10s
   46910    1.8448154e+02   0.000000e+00   1.526395e+06     16s
   69511    1.4492025e+02   0.000000e+00   4.979103e+05     21s
   85512    1.1563563e+02   0.000000e+00   1.801714e+07     26s
   99579    9.3985999e+01   0.000000e+00   2.341802e+05     30s
  116991    7.1950677e+01   0.000000e+00   3.124121e+05     36s
  131468    7.0914896e+01   0.000000e+00   1.362753e+06     40s
  148463    7.0877857e+01   0.000000e+00   9.717715e+04     45s

Root relaxation: time limit, 165095 iterations, 44.78 seconds (33.31 work units)

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

     0     0          -    0         7.00000  567.00000  8000%     -   50s

Explored 1 nodes (165095 simplex iterations) in 50.05 seconds (38.47 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 5.670000000000e+02, gap 8000.0000%

Wrote result file './lp_solutions/grafo3126.39.sol'

