
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Mon Nov 25 03:47:41 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo11504.39.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/grafo11504.39.lp
Reading time = 0.14 seconds
: 87962 rows, 2137 columns, 265720 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 87962 rows, 2137 columns and 265720 nonzeros
Model fingerprint: 0x563081f9
Variable types: 46 continuous, 2091 integer (2091 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 4.0000000
Presolve removed 22449 rows and 29 columns
Presolve time: 0.63s
Presolved: 65513 rows, 2108 columns, 198862 nonzeros
Variable types: 0 continuous, 2108 integer (2062 binary)
Found heuristic solution: objective 9.0000000
Root relaxation presolved: 2108 rows, 67621 columns, 200970 nonzeros


Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
   26981    4.4000000e+01   0.000000e+00   0.000000e+00      5s
   26981    4.4000000e+01   0.000000e+00   0.000000e+00      5s

Root relaxation: objective 4.400000e+01, 26981 iterations, 4.31 seconds (3.68 work units)
Total elapsed time = 11.28s (DegenMoves)

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

     0     0   44.00000    0  429    9.00000   44.00000   389%     -   12s
H    0     0                      10.0000000   44.00000   340%     -   12s
     0     0   44.00000    0  708   10.00000   44.00000   340%     -   20s
H    0     0                      11.0000000   44.00000   300%     -   22s
     0     0   44.00000    0  679   11.00000   44.00000   300%     -   22s
     0     0   44.00000    0  736   11.00000   44.00000   300%     -   50s

Cutting planes:
  Gomory: 1
  Lift-and-project: 26
  Cover: 11
  Clique: 18
  MIR: 93
  Zero half: 30
  RLT: 56
  BQP: 4
  PSD: 1

Explored 1 nodes (61525 simplex iterations) in 50.08 seconds (46.97 work units)
Thread count was 8 (of 8 available processors)

Solution count 4: 11 10 9 4 

Time limit reached
Best objective 1.100000000000e+01, best bound 4.400000000000e+01, gap 300.0000%

Wrote result file './lp_solutions/grafo11504.39.sol'

