
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Thu Nov 14 05:33:06 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo3003.40.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/grafo3003.40.lp
Reading time = 0.20 seconds
: 95039 rows, 2141 columns, 286881 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 95039 rows, 2141 columns and 286881 nonzeros
Model fingerprint: 0x391bf04f
Variable types: 46 continuous, 2095 integer (2095 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 1.0000000
Presolve removed 25787 rows and 36 columns
Presolve time: 0.99s
Presolved: 69252 rows, 2105 columns, 209962 nonzeros
Variable types: 0 continuous, 2105 integer (2059 binary)
Found heuristic solution: objective 9.0000000
Root relaxation presolved: 2099 rows, 71351 columns, 212067 nonzeros


Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
   17915    4.1768665e+01   0.000000e+00   7.225521e+03      5s
   39387    4.1739559e+01   0.000000e+00   9.365168e+01     10s
   40604    4.2000000e+01   0.000000e+00   0.000000e+00     10s
   40604    4.2000000e+01   0.000000e+00   0.000000e+00     10s
   40604    4.2000000e+01   0.000000e+00   0.000000e+00     10s

Root relaxation: objective 4.200000e+01, 40604 iterations, 9.28 seconds (5.85 work units)
Total elapsed time = 22.54s (DegenMoves)

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

     0     0   42.00000    0  640    9.00000   42.00000   367%     -   25s
H    0     0                      13.0000000   42.00000   223%     -   25s
     0     0   42.00000    0  825   13.00000   42.00000   223%     -   42s
     0     0   42.00000    0  807   13.00000   42.00000   223%     -   46s

Cutting planes:
  Gomory: 3
  Cover: 10
  Clique: 23
  MIR: 117
  Zero half: 116
  RLT: 47
  BQP: 1

Explored 1 nodes (59569 simplex iterations) in 50.56 seconds (32.80 work units)
Thread count was 8 (of 8 available processors)

Solution count 3: 13 9 1 

Time limit reached
Best objective 1.300000000000e+01, best bound 4.200000000000e+01, gap 223.0769%

Wrote result file './lp_solutions/grafo3003.40.sol'


Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Fri Nov 22 04:03:27 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo3003.40.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/grafo3003.40.lp
Reading time = 0.15 seconds
: 95039 rows, 2141 columns, 286881 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 95039 rows, 2141 columns and 286881 nonzeros
Model fingerprint: 0x391bf04f
Variable types: 46 continuous, 2095 integer (2095 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 1.0000000
Presolve removed 25787 rows and 36 columns
Presolve time: 0.66s
Presolved: 69252 rows, 2105 columns, 209962 nonzeros
Variable types: 0 continuous, 2105 integer (2059 binary)
Found heuristic solution: objective 9.0000000
Root relaxation presolved: 2099 rows, 71351 columns, 212067 nonzeros


Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
   26011    4.1746860e+01   0.000000e+00   3.031078e+03      5s
   40604    4.2000000e+01   0.000000e+00   0.000000e+00      8s
   40604    4.2000000e+01   0.000000e+00   0.000000e+00      8s
   40604    4.2000000e+01   0.000000e+00   0.000000e+00      8s

Root relaxation: objective 4.200000e+01, 40604 iterations, 6.93 seconds (5.85 work units)
Total elapsed time = 17.49s (DegenMoves)

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

     0     0   42.00000    0  640    9.00000   42.00000   367%     -   19s
H    0     0                      13.0000000   42.00000   223%     -   19s
     0     0   42.00000    0  825   13.00000   42.00000   223%     -   31s
     0     0   42.00000    0  807   13.00000   42.00000   223%     -   35s
     0     0   42.00000    0  801   13.00000   42.00000   223%     -   50s

Cutting planes:
  Gomory: 3
  Cover: 10
  Clique: 23
  MIR: 119
  Zero half: 115
  RLT: 71
  BQP: 1

Explored 1 nodes (69710 simplex iterations) in 50.09 seconds (43.93 work units)
Thread count was 8 (of 8 available processors)

Solution count 3: 13 9 1 

Time limit reached
Best objective 1.300000000000e+01, best bound 4.200000000000e+01, gap 223.0769%

Wrote result file './lp_solutions/grafo3003.40.sol'

