
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Tue Nov 26 04:16:54 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo3761.45.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/grafo3761.45.lp
Reading time = 0.21 seconds
: 114306 rows, 2534 columns, 344989 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 114306 rows, 2534 columns and 344989 nonzeros
Model fingerprint: 0x0b84be59
Variable types: 48 continuous, 2486 integer (2486 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 28948 rows and 8 columns
Presolve time: 0.90s
Presolved: 85358 rows, 2526 columns, 258652 nonzeros
Variable types: 0 continuous, 2526 integer (2478 binary)
Found heuristic solution: objective 11.0000000
Root relaxation presolved: 2519 rows, 87877 columns, 261178 nonzeros


Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
   17331    4.9760367e+01   0.000000e+00   2.549987e+04      5s
   35314    4.9738889e+01   0.000000e+00   7.620450e+03     10s
   40302    5.0000000e+01   0.000000e+00   0.000000e+00     12s
   40302    5.0000000e+01   0.000000e+00   0.000000e+00     12s
   40302    5.0000000e+01   0.000000e+00   0.000000e+00     12s

Root relaxation: objective 5.000000e+01, 40302 iterations, 10.54 seconds (6.33 work units)
Total elapsed time = 23.63s (DegenMoves)
Total elapsed time = 25.35s (DegenMoves)

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

     0     0   50.00000    0  560   11.00000   50.00000   355%     -   26s
H    0     0                      13.0000000   50.00000   285%     -   26s
     0     0   50.00000    0  780   13.00000   50.00000   285%     -   36s
     0     0   50.00000    0  772   13.00000   50.00000   285%     -   38s
     0     0          -    0        13.00000   50.00000   285%     -   50s

Cutting planes:
  Gomory: 3
  Lift-and-project: 45
  Cover: 6
  Clique: 2
  MIR: 114
  GUB cover: 1
  Zero half: 42
  RLT: 53
  BQP: 1

Explored 1 nodes (62635 simplex iterations) in 50.02 seconds (37.40 work units)
Thread count was 8 (of 8 available processors)

Solution count 3: 13 11 2 

Time limit reached
Best objective 1.300000000000e+01, best bound 5.000000000000e+01, gap 284.6154%

Wrote result file './lp_solutions/grafo3761.45.sol'

