
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Fri Nov 22 03:52:34 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo9931.39.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/grafo9931.39.lp
Reading time = 0.08 seconds
: 49784 rows, 1786 columns, 150687 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 49784 rows, 1786 columns and 150687 nonzeros
Model fingerprint: 0x5a50ee67
Variable types: 41 continuous, 1745 integer (1745 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 6168 rows and 34 columns
Presolve time: 0.32s
Presolved: 43616 rows, 1752 columns, 132541 nonzeros
Variable types: 0 continuous, 1752 integer (1711 binary)
Found heuristic solution: objective 6.0000000
Root relaxation presolved: 23817 rows, 21551 columns, 92943 nonzeros


Root relaxation: objective 3.300000e+01, 2596 iterations, 0.93 seconds (0.85 work units)

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

     0     0   33.00000    0  398    6.00000   33.00000   450%     -    3s
H    0     0                       9.0000000   33.00000   267%     -    3s
H    0     0                      10.0000000   33.00000   230%     -    5s
     0     0   33.00000    0  459   10.00000   33.00000   230%     -    6s
H    0     0                      11.0000000   33.00000   200%     -    6s
     0     0   33.00000    0  446   11.00000   33.00000   200%     -    6s
H    0     0                      12.0000000   33.00000   175%     -   17s
     0     0   33.00000    0  424   12.00000   33.00000   175%     -   17s
     0     0   33.00000    0  404   12.00000   33.00000   175%     -   17s
     0     0   32.66667    0  486   12.00000   32.66667   172%     -   27s
     0     0   32.66667    0  491   12.00000   32.66667   172%     -   27s
H    0     0                      13.0000000   32.66667   151%     -   34s
     0     0   32.66667    0  518   13.00000   32.66667   151%     -   34s
     0     0   32.66667    0  527   13.00000   32.66667   151%     -   35s
H    0     0                      14.0000000   32.66667   133%     -   35s
     0     0   32.66667    0  447   14.00000   32.66667   133%     -   49s
     0     0   32.66667    0  400   14.00000   32.66667   133%     -   49s
     0     0          -    0        14.00000   32.66667   133%     -   50s

Cutting planes:
  Gomory: 2
  Cover: 22
  Clique: 3
  MIR: 98
  Zero half: 22
  RLT: 41
  BQP: 1

Explored 1 nodes (67883 simplex iterations) in 50.07 seconds (47.68 work units)
Thread count was 8 (of 8 available processors)

Solution count 8: 14 13 12 ... 2

Time limit reached
Best objective 1.400000000000e+01, best bound 3.200000000000e+01, gap 128.5714%

Wrote result file './lp_solutions/grafo9931.39.sol'

