
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Tue Nov 26 00:43:18 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo6139.40.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/grafo6139.40.lp
Reading time = 0.14 seconds
: 76244 rows, 2107 columns, 230516 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 76244 rows, 2107 columns and 230516 nonzeros
Model fingerprint: 0x9637ea25
Variable types: 45 continuous, 2062 integer (2062 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 5.0000000
Presolve removed 17292 rows and 28 columns
Presolve time: 0.62s
Presolved: 58952 rows, 2079 columns, 179179 nonzeros
Variable types: 0 continuous, 2079 integer (2034 binary)
Found heuristic solution: objective 11.0000000
Root relaxation presolved: 2079 rows, 61031 columns, 181258 nonzeros


Root relaxation: objective 3.600000e+01, 15160 iterations, 2.81 seconds (1.70 work units)
Total elapsed time = 10.23s (DegenMoves)

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

     0     0   36.00000    0  335   11.00000   36.00000   227%     -   11s
H    0     0                      12.0000000   36.00000   200%     -   11s
     0     0   36.00000    0  641   12.00000   36.00000   200%     -   18s
     0     0   36.00000    0  632   12.00000   36.00000   200%     -   20s
     0     0   36.00000    0  645   12.00000   36.00000   200%     -   50s

Cutting planes:
  Gomory: 12
  Lift-and-project: 21
  Cover: 7
  Clique: 11
  MIR: 79
  Zero half: 25
  RLT: 33
  BQP: 4

Explored 1 nodes (48734 simplex iterations) in 50.11 seconds (35.70 work units)
Thread count was 8 (of 8 available processors)

Solution count 3: 12 11 5 

Time limit reached
Best objective 1.200000000000e+01, best bound 3.600000000000e+01, gap 200.0000%

Wrote result file './lp_solutions/grafo6139.40.sol'

