
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Tue Nov 19 07:49:01 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo5619.39.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/grafo5619.39.lp
Reading time = 0.43 seconds
: 243942 rows, 2056 columns, 733484 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 243942 rows, 2056 columns and 733484 nonzeros
Model fingerprint: 0xbc37a253
Variable types: 42 continuous, 2014 integer (2014 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]
Found heuristic solution: objective 2.0000000
Presolve removed 108840 rows and 9 columns
Presolve time: 1.68s
Presolved: 135102 rows, 2047 columns, 407335 nonzeros
Variable types: 0 continuous, 2047 integer (2005 binary)
Found heuristic solution: objective 5.0000000
Root relaxation presolved: 2031 rows, 137133 columns, 409382 nonzeros


Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
   24270    5.5482877e+01   0.000000e+00   7.609534e+05      5s
   49685    4.1877880e+01   0.000000e+00   9.661507e+04     10s
   79017    4.1849697e+01   0.000000e+00   6.335493e+02     15s
   89289    4.2000000e+01   0.000000e+00   0.000000e+00     17s
   89289    4.2000000e+01   0.000000e+00   0.000000e+00     17s
   89289    4.2000000e+01   0.000000e+00   0.000000e+00     17s

Root relaxation: objective 4.200000e+01, 89289 iterations, 15.19 seconds (10.87 work units)
Total elapsed time = 27.64s (DegenMoves)
Total elapsed time = 30.81s (DegenMoves)

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

     0     0   42.00000    0  437    5.00000   42.00000   740%     -   31s
H    0     0                       7.0000000   42.00000   500%     -   31s
H    0     0                       8.0000000   42.00000   425%     -   31s
     0     0   42.00000    0  716    8.00000   42.00000   425%     -   45s
H    0     0                       9.0000000   42.00000   367%     -   47s
     0     0   42.00000    0  720    9.00000   42.00000   367%     -   47s

Cutting planes:
  Gomory: 4
  Lift-and-project: 1
  Cover: 27
  Clique: 39
  MIR: 110
  Zero half: 61
  RLT: 36
  BQP: 2

Explored 1 nodes (105221 simplex iterations) in 50.07 seconds (49.80 work units)
Thread count was 8 (of 8 available processors)

Solution count 5: 9 8 7 ... 2

Time limit reached
Best objective 9.000000000000e+00, best bound 4.200000000000e+01, gap 366.6667%

Wrote result file './lp_solutions/grafo5619.39.sol'

