
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Tue Nov 26 03:10:07 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo6345.43.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/grafo6345.43.lp
Reading time = 0.79 seconds
: 416339 rows, 2776 columns, 1251483 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 416339 rows, 2776 columns and 1251483 nonzeros
Model fingerprint: 0x709b249c
Variable types: 50 continuous, 2726 integer (2726 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 189054 rows and 8 columns
Presolve time: 3.72s
Presolved: 227285 rows, 2768 columns, 684721 nonzeros
Variable types: 0 continuous, 2768 integer (2718 binary)
Found heuristic solution: objective 11.0000000
Root relaxation presolved: 2759 rows, 230044 columns, 687489 nonzeros


Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
       0    9.2897917e+02   0.000000e+00   1.084448e+06      5s
   25856    1.2034609e+02   0.000000e+00   2.647778e+05     10s
   44300    8.6927427e+01   0.000000e+00   4.694477e+05     16s
   57620    6.4880781e+01   0.000000e+00   3.800898e+05     20s
   71999    6.2810580e+01   0.000000e+00   1.999776e+05     25s
   87681    6.2776814e+01   0.000000e+00   4.856670e+04     30s
  103289    6.2760768e+01   0.000000e+00   1.303610e+04     35s
  119992    6.2752531e+01   0.000000e+00   3.267388e+03     40s
  137538    6.2748046e+01   0.000000e+00   2.906104e+03     45s

Root relaxation: time limit, 154226 iterations, 45.56 seconds (27.73 work units)

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

     0     0          -    0        11.00000  450.00000  3991%     -   50s

Explored 1 nodes (154226 simplex iterations) in 50.03 seconds (31.23 work units)
Thread count was 8 (of 8 available processors)

Solution count 1: 11 

Time limit reached
Best objective 1.100000000000e+01, best bound 4.500000000000e+02, gap 3990.9091%

Wrote result file './lp_solutions/grafo6345.43.sol'

