
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Mon Nov 25 06:20:30 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo6150.41.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/grafo6150.41.lp
Reading time = 0.18 seconds
: 111540 rows, 1928 columns, 335933 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 111540 rows, 1928 columns and 335933 nonzeros
Model fingerprint: 0xa86bb0b8
Variable types: 39 continuous, 1889 integer (1889 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 40144 rows and 12 columns
Presolve time: 0.69s
Presolved: 71396 rows, 1916 columns, 215841 nonzeros
Variable types: 0 continuous, 1916 integer (1877 binary)
Found heuristic solution: objective 9.0000000
Root relaxation presolved: 1913 rows, 73309 columns, 217757 nonzeros


Root relaxation: objective 4.500000e+01, 2420 iterations, 0.64 seconds (0.72 work units)
Total elapsed time = 7.05s (DegenMoves)

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

     0     0   45.00000    0  470    9.00000   45.00000   400%     -    8s
H    0     0                      10.0000000   45.00000   350%     -   10s
     0     0   45.00000    0  818   10.00000   45.00000   350%     -   18s
H    0     0                      12.0000000   45.00000   275%     -   18s
     0     0   45.00000    0  801   12.00000   45.00000   275%     -   21s
H    0     0                      13.0000000   45.00000   246%     -   49s
     0     0   45.00000    0  781   13.00000   45.00000   246%     -   49s
     0     0          -    0        13.00000   45.00000   246%     -   50s

Cutting planes:
  Gomory: 2
  Cover: 3
  Clique: 7
  MIR: 81
  StrongCG: 1
  Zero half: 10
  RLT: 47
  BQP: 1

Explored 1 nodes (37940 simplex iterations) in 50.09 seconds (50.28 work units)
Thread count was 8 (of 8 available processors)

Solution count 5: 13 12 10 ... -0

Time limit reached
Best objective 1.300000000000e+01, best bound 4.500000000000e+01, gap 246.1538%

Wrote result file './lp_solutions/grafo6150.41.sol'

