
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Mon Nov 25 04:40:35 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo7415.39.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/grafo7415.39.lp
Reading time = 0.15 seconds
: 91168 rows, 2236 columns, 275465 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 91168 rows, 2236 columns and 275465 nonzeros
Model fingerprint: 0x0a3eb4ca
Variable types: 48 continuous, 2188 integer (2188 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 1.0000000
Presolve removed 22076 rows and 27 columns
Presolve time: 0.65s
Presolved: 69092 rows, 2209 columns, 209646 nonzeros
Variable types: 0 continuous, 2209 integer (2161 binary)
Found heuristic solution: objective 9.0000000
Root relaxation presolved: 2209 rows, 71301 columns, 211855 nonzeros


Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
   24859    5.2756702e+01   0.000000e+00   8.761551e+03      5s
   41147    5.3000000e+01   0.000000e+00   0.000000e+00      8s
   41147    5.3000000e+01   0.000000e+00   0.000000e+00      8s

Root relaxation: objective 5.300000e+01, 41147 iterations, 7.44 seconds (5.98 work units)
Total elapsed time = 17.31s (DegenMoves)
Total elapsed time = 37.86s (DegenMoves)
Total elapsed time = 41.75s (DegenMoves)

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

     0     0   53.00000    0  599    9.00000   53.00000   489%     -   42s
H    0     0                      10.0000000   53.00000   430%     -   43s
     0     0          -    0        10.00000   53.00000   430%     -   50s

Cutting planes:
  Gomory: 35
  Cover: 24
  Clique: 15
  MIR: 150
  GUB cover: 8
  Zero half: 77
  RLT: 50
  BQP: 2

Explored 1 nodes (79274 simplex iterations) in 50.10 seconds (61.20 work units)
Thread count was 8 (of 8 available processors)

Solution count 3: 10 9 1 

Time limit reached
Best objective 1.000000000000e+01, best bound 5.300000000000e+01, gap 430.0000%

Wrote result file './lp_solutions/grafo7415.39.sol'

