
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Mon Nov 25 07:27:39 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo7141.42.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/grafo7141.42.lp
Reading time = 0.09 seconds
: 58610 rows, 2044 columns, 177394 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 58610 rows, 2044 columns and 177394 nonzeros
Model fingerprint: 0x65931256
Variable types: 43 continuous, 2001 integer (2001 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 6956 rows and 21 columns
Presolve time: 0.38s
Presolved: 51654 rows, 2023 columns, 156880 nonzeros
Variable types: 0 continuous, 2023 integer (1980 binary)
Root relaxation presolved: 27833 rows, 25844 columns, 109238 nonzeros


Root relaxation: objective 3.900000e+01, 3811 iterations, 1.67 seconds (1.53 work units)
Total elapsed time = 5.84s (DegenMoves)

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

     0     0   39.00000    0  542          -   39.00000      -     -    6s
H    0     0                       6.0000000   39.00000   550%     -    6s
H    0     0                       8.0000000   39.00000   387%     -    6s
H    0     0                      11.0000000   39.00000   255%     -    8s
     0     0   39.00000    0  893   11.00000   39.00000   255%     -   21s
     0     0   39.00000    0  863   11.00000   39.00000   255%     -   22s
H    0     0                      12.0000000   39.00000   225%     -   49s
H    0     0                      13.0000000   39.00000   200%     -   49s
H    0     0                      14.0000000   39.00000   179%     -   49s
     0     0   39.00000    0  604   14.00000   39.00000   179%     -   49s
     0     0          -    0        14.00000   39.00000   179%     -   50s

Cutting planes:
  Gomory: 3
  Cover: 1
  Clique: 1
  MIR: 54
  StrongCG: 1
  Zero half: 6
  RLT: 39

Explored 1 nodes (48502 simplex iterations) in 50.07 seconds (44.18 work units)
Thread count was 8 (of 8 available processors)

Solution count 6: 14 13 12 ... 6

Time limit reached
Best objective 1.400000000000e+01, best bound 3.900000000000e+01, gap 178.5714%

Wrote result file './lp_solutions/grafo7141.42.sol'

