
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Mon Nov 25 04:26:18 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo6514.39.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/grafo6514.39.lp
Reading time = 0.44 seconds
: 266909 rows, 2493 columns, 803020 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 266909 rows, 2493 columns and 803020 nonzeros
Model fingerprint: 0x86e77b8d
Variable types: 50 continuous, 2443 integer (2443 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 113959 rows and 10 columns
Presolve time: 1.79s
Presolved: 152950 rows, 2483 columns, 461552 nonzeros
Variable types: 0 continuous, 2483 integer (2433 binary)
Found heuristic solution: objective 6.0000000
Root relaxation presolved: 2467 rows, 155417 columns, 464035 nonzeros


Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
   16471    9.8631589e+01   0.000000e+00   4.793290e+05      5s
   38503    6.4869364e+01   0.000000e+00   3.468206e+05     10s
   61411    5.8779991e+01   0.000000e+00   3.389873e+04     15s
   84259    5.8759129e+01   0.000000e+00   4.814107e+02     20s
   94088    5.9000000e+01   0.000000e+00   0.000000e+00     22s
   94088    5.9000000e+01   0.000000e+00   0.000000e+00     22s
   94088    5.9000000e+01   0.000000e+00   0.000000e+00     22s

Root relaxation: objective 5.900000e+01, 94088 iterations, 20.14 seconds (15.60 work units)
Total elapsed time = 48.47s (DegenMoves)

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

     0     0   59.00000    0  727    6.00000   59.00000   883%     -   50s

Explored 1 nodes (106984 simplex iterations) in 50.10 seconds (48.21 work units)
Thread count was 8 (of 8 available processors)

Solution count 1: 6 

Time limit reached
Best objective 6.000000000000e+00, best bound 5.900000000000e+01, gap 883.3333%

Wrote result file './lp_solutions/grafo6514.39.sol'

