
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Mon Nov 25 06:56:35 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo3393.42.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/grafo3393.42.lp
Reading time = 0.25 seconds
: 154571 rows, 2423 columns, 465784 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 154571 rows, 2423 columns and 465784 nonzeros
Model fingerprint: 0xc707adbc
Variable types: 48 continuous, 2375 integer (2375 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 53844 rows and 17 columns
Presolve time: 1.03s
Presolved: 100727 rows, 2406 columns, 304626 nonzeros
Variable types: 0 continuous, 2406 integer (2358 binary)
Found heuristic solution: objective 10.0000000
Root relaxation presolved: 2397 rows, 103124 columns, 307032 nonzeros


Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
   21127    5.3926188e+01   0.000000e+00   5.647893e+04      5s
   44451    5.3902744e+01   0.000000e+00   4.415445e+03     10s
   67304    5.3897136e+01   0.000000e+00   5.611822e+02     15s
   72694    5.4000000e+01   0.000000e+00   0.000000e+00     16s
   72694    5.4000000e+01   0.000000e+00   0.000000e+00     16s
   72694    5.4000000e+01   0.000000e+00   0.000000e+00     16s

Root relaxation: objective 5.400000e+01, 72694 iterations, 15.05 seconds (13.41 work units)
Total elapsed time = 34.91s (DegenMoves)
Total elapsed time = 36.69s (DegenMoves)

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

     0     0   54.00000    0  560   10.00000   54.00000   440%     -   37s
     0     0          -    0        10.00000   54.00000   440%     -   50s

Cutting planes:
  Gomory: 29
  Cover: 55
  Clique: 25
  MIR: 219
  StrongCG: 2
  GUB cover: 3
  Zero half: 75
  RLT: 74
  BQP: 3

Explored 1 nodes (93821 simplex iterations) in 50.02 seconds (51.74 work units)
Thread count was 8 (of 8 available processors)

Solution count 1: 10 

Time limit reached
Best objective 1.000000000000e+01, best bound 5.400000000000e+01, gap 440.0000%

Wrote result file './lp_solutions/grafo3393.42.sol'

