
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Thu Nov 14 07:00:23 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo4111.35.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/grafo4111.35.lp
Reading time = 0.15 seconds
: 70308 rows, 2049 columns, 212797 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 70308 rows, 2049 columns and 212797 nonzeros
Model fingerprint: 0x0f989359
Variable types: 48 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 13784 rows and 42 columns
Presolve time: 0.72s
Presolved: 56524 rows, 2007 columns, 171930 nonzeros
Variable types: 0 continuous, 2007 integer (1959 binary)
Found heuristic solution: objective 5.0000000
Root relaxation presolved: 2004 rows, 58528 columns, 173937 nonzeros


Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
   18342    4.8974876e+01   0.000000e+00   2.677468e+04      5s
   38190    4.8955811e+01   0.000000e+00   1.849966e+04     10s
   57179    4.8951448e+01   0.000000e+00   1.250256e+02     15s
   58602    4.9000000e+01   0.000000e+00   0.000000e+00     15s
   58602    4.9000000e+01   0.000000e+00   0.000000e+00     15s
   58602    4.9000000e+01   0.000000e+00   0.000000e+00     16s

Root relaxation: objective 4.900000e+01, 58602 iterations, 14.59 seconds (8.68 work units)
Total elapsed time = 27.31s (DegenMoves)
Total elapsed time = 40.47s (DegenMoves)

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

     0     0   49.00000    0  577    5.00000   49.00000   880%     -   43s
H    0     0                       9.0000000   49.00000   444%     -   43s
H    0     0                      10.0000000   49.00000   390%     -   43s
H    0     0                      11.0000000   49.00000   345%     -   47s
     0     0          -    0        11.00000   49.00000   345%     -   50s

Cutting planes:
  Gomory: 20
  Cover: 26
  Clique: 6
  MIR: 207
  GUB cover: 4
  Zero half: 54
  RLT: 45

Explored 1 nodes (86917 simplex iterations) in 50.10 seconds (40.02 work units)
Thread count was 8 (of 8 available processors)

Solution count 4: 11 10 9 5 

Time limit reached
Best objective 1.100000000000e+01, best bound 4.900000000000e+01, gap 345.4545%

Wrote result file './lp_solutions/grafo4111.35.sol'


Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Thu Nov 21 06:17:03 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo4111.35.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/grafo4111.35.lp
Reading time = 0.11 seconds
: 70308 rows, 2049 columns, 212797 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 70308 rows, 2049 columns and 212797 nonzeros
Model fingerprint: 0x0f989359
Variable types: 48 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 13784 rows and 42 columns
Presolve time: 0.48s
Presolved: 56524 rows, 2007 columns, 171930 nonzeros
Variable types: 0 continuous, 2007 integer (1959 binary)
Found heuristic solution: objective 5.0000000
Root relaxation presolved: 2004 rows, 58528 columns, 173937 nonzeros


Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
   26178    4.8963869e+01   0.000000e+00   6.194634e+03      5s
   50762    4.8951942e+01   0.000000e+00   3.582002e+03     10s
   58602    4.9000000e+01   0.000000e+00   0.000000e+00     12s
   58602    4.9000000e+01   0.000000e+00   0.000000e+00     12s
   58602    4.9000000e+01   0.000000e+00   0.000000e+00     12s

Root relaxation: objective 4.900000e+01, 58602 iterations, 11.00 seconds (8.68 work units)
Total elapsed time = 21.20s (DegenMoves)
Total elapsed time = 31.88s (DegenMoves)

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

     0     0   49.00000    0  577    5.00000   49.00000   880%     -   34s
H    0     0                       9.0000000   49.00000   444%     -   34s
H    0     0                      10.0000000   49.00000   390%     -   34s
H    0     0                      11.0000000   49.00000   345%     -   36s
     0     0   49.00000    0  882   11.00000   49.00000   345%     -   47s
     0     0          -    0        11.00000   49.00000   345%     -   50s

Cutting planes:
  Gomory: 4
  Cover: 1
  Clique: 4
  MIR: 79
  GUB cover: 1
  Zero half: 13
  RLT: 31
  BQP: 1

Explored 1 nodes (95080 simplex iterations) in 50.06 seconds (50.36 work units)
Thread count was 8 (of 8 available processors)

Solution count 4: 11 10 9 5 

Time limit reached
Best objective 1.100000000000e+01, best bound 4.900000000000e+01, gap 345.4545%

Wrote result file './lp_solutions/grafo4111.35.sol'

