
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Tue Nov 26 05:25:23 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo7084.47.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/grafo7084.47.lp
Reading time = 0.44 seconds
: 236518 rows, 3492 columns, 713085 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 236518 rows, 3492 columns and 713085 nonzeros
Model fingerprint: 0xc713c1ba
Variable types: 61 continuous, 3431 integer (3431 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 72290 rows and 24 columns
Presolve time: 2.33s
Presolved: 164228 rows, 3468 columns, 496666 nonzeros
Variable types: 0 continuous, 3468 integer (3407 binary)
Found heuristic solution: objective 8.0000000
Root relaxation presolved: 3462 rows, 167690 columns, 500134 nonzeros


Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
    8754    1.1461178e+02   0.000000e+00   2.478469e+05      5s
   22161    6.7934233e+01   0.000000e+00   1.824092e+05     10s
   32724    6.5840970e+01   0.000000e+00   4.123756e+05     15s
   45017    6.5739313e+01   0.000000e+00   7.389019e+04     20s
   55897    6.5703183e+01   0.000000e+00   3.205998e+04     25s
   67417    6.5683625e+01   0.000000e+00   2.925954e+04     30s
   78297    6.5672743e+01   0.000000e+00   4.825043e+04     35s
   88537    6.5665977e+01   0.000000e+00   4.386511e+03     40s
  100057    6.5661605e+01   0.000000e+00   2.661784e+03     45s

Root relaxation: time limit, 110605 iterations, 47.21 seconds (26.90 work units)

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

     0     0          -    0         8.00000  371.00000  4538%     -   50s

Explored 1 nodes (110605 simplex iterations) in 50.03 seconds (29.01 work units)
Thread count was 8 (of 8 available processors)

Solution count 1: 8 

Time limit reached
Best objective 8.000000000000e+00, best bound 3.710000000000e+02, gap 4537.5000%

Wrote result file './lp_solutions/grafo7084.47.sol'

