
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Tue Nov 26 00:41:37 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo5714.40.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/grafo5714.40.lp
Reading time = 0.46 seconds
: 227420 rows, 2184 columns, 684043 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 227420 rows, 2184 columns and 684043 nonzeros
Model fingerprint: 0x3603ea6f
Variable types: 44 continuous, 2140 integer (2140 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, 5e+01]
Presolve removed 131412 rows and 80 columns
Presolve time: 1.77s
Presolved: 96008 rows, 2104 columns, 290079 nonzeros
Variable types: 0 continuous, 2104 integer (2060 binary)
Root relaxation presolved: 2091 rows, 98099 columns, 292183 nonzeros


Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
   15497    4.7870931e+01   0.000000e+00   7.832911e+04      5s
   37577    4.5833221e+01   0.000000e+00   4.937039e+03     10s
   59412    4.6000000e+01   0.000000e+00   0.000000e+00     15s
   59412    4.6000000e+01   0.000000e+00   0.000000e+00     15s
   59412    4.6000000e+01   0.000000e+00   0.000000e+00     15s

Root relaxation: objective 4.600000e+01, 59412 iterations, 12.98 seconds (8.27 work units)
Total elapsed time = 31.49s (DegenMoves)

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

     0     0   46.00000    0  767          -   46.00000      -     -   50s
H    0     0                       4.0000000   46.00000  1050%     -   50s

Explored 1 nodes (79058 simplex iterations) in 50.05 seconds (51.97 work units)
Thread count was 8 (of 8 available processors)

Solution count 1: 4 

Time limit reached
Best objective 4.000000000000e+00, best bound 4.600000000000e+01, gap 1050.0000%

Wrote result file './lp_solutions/grafo5714.40.sol'

