
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Thu Nov 14 06:21:46 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo3662.46.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/grafo3662.46.lp
Reading time = 0.16 seconds
: 82726 rows, 2354 columns, 249963 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 82726 rows, 2354 columns and 249963 nonzeros
Model fingerprint: 0x8bb1b8e2
Variable types: 46 continuous, 2308 integer (2308 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 12992 rows and 7 columns
Presolve time: 0.72s
Presolved: 69734 rows, 2347 columns, 211221 nonzeros
Variable types: 0 continuous, 2347 integer (2301 binary)
Found heuristic solution: objective 10.0000000
Root relaxation presolved: 2339 rows, 72073 columns, 213568 nonzeros


Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
   17169    4.6789665e+01   0.000000e+00   1.360821e+04      5s
   34997    4.7000000e+01   0.000000e+00   0.000000e+00     10s
   34997    4.7000000e+01   0.000000e+00   0.000000e+00     10s
   34997    4.7000000e+01   0.000000e+00   0.000000e+00     10s

Root relaxation: objective 4.700000e+01, 34997 iterations, 8.92 seconds (5.04 work units)
Total elapsed time = 22.38s (DegenMoves)
Total elapsed time = 25.46s (DegenMoves)

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

     0     0   47.00000    0  737   10.00000   47.00000   370%     -   30s
H    0     0                      11.0000000   47.00000   327%     -   30s
H    0     0                      12.0000000   47.00000   292%     -   48s
     0     0   47.00000    0  873   12.00000   47.00000   292%     -   48s

Cutting planes:
  Gomory: 1
  Clique: 5
  MIR: 33
  Zero half: 12
  RLT: 15
  BQP: 3

Explored 1 nodes (59721 simplex iterations) in 50.12 seconds (35.93 work units)
Thread count was 8 (of 8 available processors)

Solution count 3: 12 11 10 

Time limit reached
Best objective 1.200000000000e+01, best bound 4.700000000000e+01, gap 291.6667%

Wrote result file './lp_solutions/grafo3662.46.sol'


Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Fri Nov 22 06:52:46 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo3662.46.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/grafo3662.46.lp
Reading time = 0.13 seconds
: 82726 rows, 2354 columns, 249963 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 82726 rows, 2354 columns and 249963 nonzeros
Model fingerprint: 0x8bb1b8e2
Variable types: 46 continuous, 2308 integer (2308 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 12992 rows and 7 columns
Presolve time: 0.49s
Presolved: 69734 rows, 2347 columns, 211221 nonzeros
Variable types: 0 continuous, 2347 integer (2301 binary)
Found heuristic solution: objective 10.0000000
Root relaxation presolved: 2339 rows, 72073 columns, 213568 nonzeros


Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
   25429    4.6776597e+01   0.000000e+00   4.600196e+04      5s
   34997    4.7000000e+01   0.000000e+00   0.000000e+00      7s
   34997    4.7000000e+01   0.000000e+00   0.000000e+00      7s
   34997    4.7000000e+01   0.000000e+00   0.000000e+00      7s

Root relaxation: objective 4.700000e+01, 34997 iterations, 6.33 seconds (5.04 work units)
Total elapsed time = 16.74s (DegenMoves)
Total elapsed time = 20.77s (DegenMoves)

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

     0     0   47.00000    0  737   10.00000   47.00000   370%     -   22s
H    0     0                      11.0000000   47.00000   327%     -   22s
H    0     0                      12.0000000   47.00000   292%     -   35s
     0     0   47.00000    0  873   12.00000   47.00000   292%     -   35s
     0     0   47.00000    0  867   12.00000   47.00000   292%     -   39s
     0     0          -    0        12.00000   47.00000   292%     -   50s

Cutting planes:
  Gomory: 8
  Lift-and-project: 35
  Cover: 9
  Clique: 3
  MIR: 140
  StrongCG: 1
  Zero half: 53
  RLT: 71

Explored 1 nodes (65531 simplex iterations) in 50.07 seconds (46.04 work units)
Thread count was 8 (of 8 available processors)

Solution count 3: 12 11 10 

Time limit reached
Best objective 1.200000000000e+01, best bound 4.700000000000e+01, gap 291.6667%

Wrote result file './lp_solutions/grafo3662.46.sol'

