
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Mon Nov 25 06:25:32 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo6246.41.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/grafo6246.41.lp
Reading time = 0.23 seconds
: 146804 rows, 2434 columns, 442558 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 146804 rows, 2434 columns and 442558 nonzeros
Model fingerprint: 0x3d75d345
Variable types: 50 continuous, 2384 integer (2384 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 -0.0000000
Presolve removed 47907 rows and 33 columns
Presolve time: 1.15s
Presolved: 98897 rows, 2401 columns, 299308 nonzeros
Variable types: 0 continuous, 2401 integer (2351 binary)
Found heuristic solution: objective 4.0000000
Root relaxation presolved: 2389 rows, 101286 columns, 301709 nonzeros


Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
   20063    4.7859231e+01   0.000000e+00   1.597538e+05      5s
   44345    4.7749143e+01   0.000000e+00   6.253281e+03     10s
   58410    4.8000000e+01   0.000000e+00   0.000000e+00     13s
   58410    4.8000000e+01   0.000000e+00   0.000000e+00     13s
   58410    4.8000000e+01   0.000000e+00   0.000000e+00     13s

Root relaxation: objective 4.800000e+01, 58410 iterations, 11.90 seconds (9.41 work units)
Total elapsed time = 23.86s (DegenMoves)
Total elapsed time = 26.22s (DegenMoves)

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

     0     0   48.00000    0  511    4.00000   48.00000  1100%     -   27s
H    0     0                       7.0000000   48.00000   586%     -   27s
H    0     0                      10.0000000   48.00000   380%     -   27s
     0     0   48.00000    0  733   10.00000   48.00000   380%     -   37s
H    0     0                      12.0000000   48.00000   300%     -   38s
     0     0   48.00000    0  693   12.00000   48.00000   300%     -   39s
     0     0          -    0        12.00000   48.00000   300%     -   50s

Cutting planes:
  Gomory: 7
  Lift-and-project: 41
  Cover: 20
  Clique: 19
  MIR: 120
  Zero half: 45
  RLT: 49
  BQP: 3

Explored 1 nodes (81989 simplex iterations) in 50.02 seconds (51.32 work units)
Thread count was 8 (of 8 available processors)

Solution count 5: 12 10 7 ... -0

Time limit reached
Best objective 1.200000000000e+01, best bound 4.800000000000e+01, gap 300.0000%

Wrote result file './lp_solutions/grafo6246.41.sol'

