
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Fri Nov 22 07:47:17 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo6160.49.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/grafo6160.49.lp
Reading time = 0.14 seconds
: 85099 rows, 2507 columns, 257028 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 85099 rows, 2507 columns and 257028 nonzeros
Model fingerprint: 0xf96b087c
Variable types: 46 continuous, 2461 integer (2461 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 3.0000000
Presolve removed 10962 rows and 0 columns
Presolve time: 0.47s
Presolved: 74137 rows, 2507 columns, 224446 nonzeros
Variable types: 0 continuous, 2507 integer (2461 binary)
Found heuristic solution: objective 10.0000000
Root relaxation presolved: 2474 rows, 76611 columns, 226953 nonzeros


Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
   25603    4.7953746e+01   0.000000e+00   9.994337e+03      5s
   48389    4.7946893e+01   0.000000e+00   5.402155e+02     10s
   52694    4.8000000e+01   0.000000e+00   0.000000e+00     11s
   52694    4.8000000e+01   0.000000e+00   0.000000e+00     11s
   52694    4.8000000e+01   0.000000e+00   0.000000e+00     11s

Root relaxation: objective 4.800000e+01, 52694 iterations, 10.54 seconds (9.62 work units)
Total elapsed time = 23.29s (DegenMoves)
Total elapsed time = 25.20s (DegenMoves)

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

     0     0   48.00000    0  746   10.00000   48.00000   380%     -   27s
H    0     0                      11.0000000   48.00000   336%     -   27s
     0     0   48.00000    0  882   11.00000   48.00000   336%     -   39s
     0     0   48.00000    0  842   11.00000   48.00000   336%     -   42s
     0     0          -    0        11.00000   48.00000   336%     -   50s

Cutting planes:
  Gomory: 5
  Lift-and-project: 34
  Cover: 5
  Clique: 3
  MIR: 100
  Zero half: 18
  RLT: 64

Explored 1 nodes (80684 simplex iterations) in 50.08 seconds (45.59 work units)
Thread count was 8 (of 8 available processors)

Solution count 3: 11 10 3 

Time limit reached
Best objective 1.100000000000e+01, best bound 4.800000000000e+01, gap 336.3636%

Wrote result file './lp_solutions/grafo6160.49.sol'

