
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Mon Nov 18 20:04:28 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo11131.36.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/grafo11131.36.lp
Reading time = 0.34 seconds
: 66913 rows, 1801 columns, 202225 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 66913 rows, 1801 columns and 202225 nonzeros
Model fingerprint: 0x9419a9c0
Variable types: 43 continuous, 1758 integer (1758 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 15890 rows and 30 columns
Presolve time: 0.58s
Presolved: 51023 rows, 1771 columns, 154891 nonzeros
Variable types: 0 continuous, 1771 integer (1728 binary)
Found heuristic solution: objective 7.0000000
Root relaxation presolved: 1771 rows, 52794 columns, 156662 nonzeros


Root relaxation: objective 3.400000e+01, 2319 iterations, 0.54 seconds (0.57 work units)
Total elapsed time = 7.55s (DegenMoves)

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

     0     0   34.00000    0  569    7.00000   34.00000   386%     -    8s
H    0     0                       9.0000000   34.00000   278%     -    8s
     0     0   34.00000    0  786    9.00000   34.00000   278%     -   23s
     0     0   34.00000    0  742    9.00000   34.00000   278%     -   24s
     0     0   34.00000    0  906    9.00000   34.00000   278%     -   50s

Cutting planes:
  Gomory: 4
  Cover: 12
  Clique: 13
  MIR: 55
  StrongCG: 1
  Zero half: 38
  RLT: 46
  BQP: 1

Explored 1 nodes (32292 simplex iterations) in 50.06 seconds (32.47 work units)
Thread count was 8 (of 8 available processors)

Solution count 3: 9 7 2 

Time limit reached
Best objective 9.000000000000e+00, best bound 3.400000000000e+01, gap 277.7778%

Wrote result file './lp_solutions/grafo11131.36.sol'

