
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Fri Nov 22 04:31:57 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo7330.40.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/grafo7330.40.lp
Reading time = 0.10 seconds
: 64831 rows, 2004 columns, 196129 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 64831 rows, 2004 columns and 196129 nonzeros
Model fingerprint: 0x29ebd7d7
Variable types: 44 continuous, 1960 integer (1960 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]
Presolve removed 10631 rows and 32 columns
Presolve time: 0.43s
Presolved: 54200 rows, 1972 columns, 164605 nonzeros
Variable types: 0 continuous, 1972 integer (1928 binary)
Found heuristic solution: objective 8.0000000
Root relaxation presolved: 1972 rows, 56172 columns, 166577 nonzeros


Root relaxation: objective 3.700000e+01, 2329 iterations, 0.50 seconds (0.56 work units)
Total elapsed time = 6.12s (DegenMoves)

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

     0     0   37.00000    0  521    8.00000   37.00000   362%     -    7s
H    0     0                      11.0000000   37.00000   236%     -    7s
H    0     0                      12.0000000   37.00000   208%     -    9s
     0     0   37.00000    0  619   12.00000   37.00000   208%     -   14s
H    0     0                      13.0000000   37.00000   185%     -   15s
     0     0   37.00000    0  582   13.00000   37.00000   185%     -   15s
H    0     0                      14.0000000   37.00000   164%     -   33s
H    0     0                      15.0000000   37.00000   147%     -   33s
H    0     0                      16.0000000   37.00000   131%     -   33s
     0     0   37.00000    0  355   16.00000   37.00000   131%     -   33s
     0     0   37.00000    0  342   16.00000   37.00000   131%     -   34s
     0     0   37.00000    0  308   16.00000   37.00000   131%     -   39s
H    0     0                      17.0000000   37.00000   118%     -   40s
     0     0   37.00000    0  324   17.00000   37.00000   118%     -   40s
H    0     0                      18.0000000   37.00000   106%     -   46s
H    0     0                      19.0000000   37.00000  94.7%     -   46s
     0     0   37.00000    0  490   19.00000   37.00000  94.7%     -   47s
     0     0   37.00000    0  490   19.00000   37.00000  94.7%     -   47s
     0     0   37.00000    0  533   19.00000   37.00000  94.7%     -   50s

Cutting planes:
  Gomory: 1
  Cover: 19
  Clique: 9
  MIR: 111
  StrongCG: 1
  Zero half: 33
  RLT: 59

Explored 1 nodes (57660 simplex iterations) in 50.08 seconds (46.30 work units)
Thread count was 8 (of 8 available processors)

Solution count 10: 19 18 17 ... 8

Time limit reached
Best objective 1.900000000000e+01, best bound 3.700000000000e+01, gap 94.7368%

Wrote result file './lp_solutions/grafo7330.40.sol'

