
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Mon Nov 25 10:02:58 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo7623.45.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/grafo7623.45.lp
Reading time = 0.31 seconds
: 194218 rows, 3225 columns, 585837 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 194218 rows, 3225 columns and 585837 nonzeros
Model fingerprint: 0xcd48cb4f
Variable types: 60 continuous, 3165 integer (3165 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 3.0000000
Presolve removed 54430 rows and 30 columns
Presolve time: 1.43s
Presolved: 139788 rows, 3195 columns, 423015 nonzeros
Variable types: 0 continuous, 3195 integer (3135 binary)
Found heuristic solution: objective 9.0000000
Root relaxation presolved: 3189 rows, 142977 columns, 426210 nonzeros


Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
   17035    6.8612990e+01   0.000000e+00   1.249079e+05      5s
   34730    6.2888138e+01   0.000000e+00   3.777566e+04     10s
   50690    6.2872760e+01   0.000000e+00   1.856021e+04     15s
   65510    6.2869034e+01   0.000000e+00   1.993077e+03     20s
   79712    6.3000000e+01   0.000000e+00   0.000000e+00     25s
   79712    6.3000000e+01   0.000000e+00   0.000000e+00     25s
   79712    6.3000000e+01   0.000000e+00   0.000000e+00     25s

Root relaxation: objective 6.300000e+01, 79712 iterations, 23.27 seconds (19.62 work units)
Total elapsed time = 25.34s (DegenMoves)

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

     0     0   63.00000    0 1815    9.00000   63.00000   600%     -   50s

Explored 1 nodes (89531 simplex iterations) in 50.06 seconds (45.24 work units)
Thread count was 8 (of 8 available processors)

Solution count 2: 9 3 

Time limit reached
Best objective 9.000000000000e+00, best bound 6.300000000000e+01, gap 600.0000%

Wrote result file './lp_solutions/grafo7623.45.sol'

