
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Mon Nov 25 06:07:55 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo5146.41.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/grafo5146.41.lp
Reading time = 0.13 seconds
: 80675 rows, 2150 columns, 243817 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 80675 rows, 2150 columns and 243817 nonzeros
Model fingerprint: 0x90e7ad3b
Variable types: 46 continuous, 2104 integer (2104 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 16472 rows and 29 columns
Presolve time: 0.56s
Presolved: 64203 rows, 2121 columns, 194740 nonzeros
Variable types: 0 continuous, 2121 integer (2075 binary)
Found heuristic solution: objective 10.0000000
Root relaxation presolved: 2121 rows, 66324 columns, 196861 nonzeros


Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
   24172    4.0933060e+01   0.000000e+00   1.613081e+04      5s
   47994    4.0924593e+01   0.000000e+00   1.359779e+02     10s
   51322    4.1000000e+01   0.000000e+00   0.000000e+00     11s
   51322    4.1000000e+01   0.000000e+00   0.000000e+00     11s

Root relaxation: objective 4.100000e+01, 51322 iterations, 10.05 seconds (9.03 work units)
Total elapsed time = 18.75s (DegenMoves)
Total elapsed time = 20.78s (DegenMoves)

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

     0     0   41.00000    0  474   10.00000   41.00000   310%     -   21s
H    0     0                      11.0000000   41.00000   273%     -   23s
     0     0   41.00000    0  728   11.00000   41.00000   273%     -   31s
     0     0   41.00000    0  737   11.00000   41.00000   273%     -   33s
     0     0   41.00000    0  810   11.00000   41.00000   273%     -   50s

Cutting planes:
  Gomory: 1
  Lift-and-project: 26
  Cover: 14
  Clique: 6
  MIR: 170
  Zero half: 50
  RLT: 75

Explored 1 nodes (79684 simplex iterations) in 50.09 seconds (43.95 work units)
Thread count was 8 (of 8 available processors)

Solution count 2: 11 10 

Time limit reached
Best objective 1.100000000000e+01, best bound 4.100000000000e+01, gap 272.7273%

Wrote result file './lp_solutions/grafo5146.41.sol'

