
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Mon Nov 18 15:14:47 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo1749.21.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/grafo1749.21.lp
Reading time = 0.08 seconds
: 48871 rows, 894 columns, 147270 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 48871 rows, 894 columns and 147270 nonzeros
Model fingerprint: 0xa40841d3
Variable types: 30 continuous, 864 integer (864 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 21812 rows and 18 columns
Presolve time: 0.32s
Presolved: 27059 rows, 876 columns, 82035 nonzeros
Variable types: 0 continuous, 876 integer (846 binary)
Found heuristic solution: objective 4.0000000
Root relaxation presolved: 21669 rows, 6266 columns, 71255 nonzeros


Root relaxation: objective 3.500000e+01, 1578 iterations, 0.65 seconds (0.74 work units)

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

     0     0   35.00000    0  378    4.00000   35.00000   775%     -    2s
H    0     0                       5.0000000   35.00000   600%     -    2s
     0     0   35.00000    0  582    5.00000   35.00000   600%     -    5s
     0     0   35.00000    0  567    5.00000   35.00000   600%     -    6s
     0     0   35.00000    0  306    5.00000   35.00000   600%     -   13s
     0     0   35.00000    0  341    5.00000   35.00000   600%     -   13s
     0     0   35.00000    0  402    5.00000   35.00000   600%     -   21s
     0     0   35.00000    0  389    5.00000   35.00000   600%     -   21s
H    0     0                       6.0000000   35.00000   483%     -   26s
     0     0   35.00000    0  389    6.00000   35.00000   483%     -   26s
     0     0   35.00000    0  434    6.00000   35.00000   483%     -   27s
H    0     0                       8.0000000   35.00000   337%     -   34s
H    0     0                       9.0000000   35.00000   289%     -   34s
     0     0   35.00000    0  378    9.00000   35.00000   289%     -   34s
     0     0   35.00000    0  380    9.00000   35.00000   289%     -   35s
     0     0   35.00000    0  395    9.00000   35.00000   289%     -   41s
     0     0   35.00000    0  402    9.00000   35.00000   289%     -   42s
     0     0   35.00000    0  448    9.00000   35.00000   289%     -   49s
     0     0   35.00000    0  448    9.00000   35.00000   289%     -   50s

Cutting planes:
  Gomory: 1
  Cover: 1
  Clique: 26
  MIR: 28
  Zero half: 2
  RLT: 27
  BQP: 1

Explored 1 nodes (73195 simplex iterations) in 50.01 seconds (51.14 work units)
Thread count was 8 (of 8 available processors)

Solution count 6: 9 8 6 ... -0

Time limit reached
Best objective 9.000000000000e+00, best bound 3.500000000000e+01, gap 288.8889%

Wrote result file './lp_solutions/grafo1749.21.sol'

