
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Tue Nov 26 02:14:25 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo5595.42.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/grafo5595.42.lp
Reading time = 0.35 seconds
: 188155 rows, 2328 columns, 566339 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 188155 rows, 2328 columns and 566339 nonzeros
Model fingerprint: 0x93ced819
Variable types: 46 continuous, 2282 integer (2282 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 73569 rows and 18 columns
Presolve time: 1.88s
Presolved: 114586 rows, 2310 columns, 345934 nonzeros
Variable types: 0 continuous, 2310 integer (2264 binary)
Found heuristic solution: objective 6.0000000
Root relaxation presolved: 2310 rows, 116896 columns, 348244 nonzeros


Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
   14369    5.5981300e+01   0.000000e+00   1.978551e+05      5s
   33926    5.3832519e+01   0.000000e+00   2.561824e+04     10s
   53462    5.3803581e+01   0.000000e+00   9.135981e+03     15s
   72470    5.3796895e+01   0.000000e+00   1.480042e+02     20s
   78685    5.4000000e+01   0.000000e+00   0.000000e+00     22s
   78685    5.4000000e+01   0.000000e+00   0.000000e+00     22s

Root relaxation: objective 5.400000e+01, 78685 iterations, 20.04 seconds (11.60 work units)
Total elapsed time = 44.47s (DegenMoves)
Total elapsed time = 47.23s (DegenMoves)

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

     0     0   54.00000    0  772    6.00000   54.00000   800%     -   50s

Explored 1 nodes (94212 simplex iterations) in 50.05 seconds (41.19 work units)
Thread count was 8 (of 8 available processors)

Solution count 1: 6 

Time limit reached
Best objective 6.000000000000e+00, best bound 5.400000000000e+01, gap 800.0000%

Wrote result file './lp_solutions/grafo5595.42.sol'

