
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Thu Nov 21 10:04:07 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo9906.38.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/grafo9906.38.lp
Reading time = 0.14 seconds
: 76276 rows, 2165 columns, 230798 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 76276 rows, 2165 columns and 230798 nonzeros
Model fingerprint: 0x422dadea
Variable types: 48 continuous, 2117 integer (2117 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 14530 rows and 37 columns
Presolve time: 0.60s
Presolved: 61746 rows, 2128 columns, 187666 nonzeros
Variable types: 0 continuous, 2128 integer (2080 binary)
Root relaxation presolved: 2128 rows, 63874 columns, 189794 nonzeros


Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
   21692    4.3745456e+01   0.000000e+00   3.185322e+03      5s
   37436    4.4000000e+01   0.000000e+00   0.000000e+00      8s
   37436    4.4000000e+01   0.000000e+00   0.000000e+00      8s

Root relaxation: objective 4.400000e+01, 37436 iterations, 7.74 seconds (5.33 work units)
Total elapsed time = 18.46s (DegenMoves)
Total elapsed time = 20.04s (DegenMoves)

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

     0     0   44.00000    0  601          -   44.00000      -     -   20s
H    0     0                       8.0000000   44.00000   450%     -   20s
H    0     0                       9.0000000   44.00000   389%     -   20s
H    0     0                      10.0000000   44.00000   340%     -   24s
     0     0   44.00000    0  834   10.00000   44.00000   340%     -   34s
     0     0   44.00000    0  818   10.00000   44.00000   340%     -   35s
     0     0          -    0        10.00000   44.00000   340%     -   50s

Cutting planes:
  Gomory: 3
  Lift-and-project: 27
  Cover: 11
  Clique: 12
  MIR: 100
  Zero half: 24
  RLT: 54
  BQP: 3

Explored 1 nodes (62294 simplex iterations) in 50.10 seconds (36.78 work units)
Thread count was 8 (of 8 available processors)

Solution count 3: 10 9 8 

Time limit reached
Best objective 1.000000000000e+01, best bound 4.400000000000e+01, gap 340.0000%

Wrote result file './lp_solutions/grafo9906.38.sol'


Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Fri Nov 22 02:59:25 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo9906.38.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/grafo9906.38.lp
Reading time = 0.12 seconds
: 76276 rows, 2165 columns, 230798 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 76276 rows, 2165 columns and 230798 nonzeros
Model fingerprint: 0x422dadea
Variable types: 48 continuous, 2117 integer (2117 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 14530 rows and 37 columns
Presolve time: 0.55s
Presolved: 61746 rows, 2128 columns, 187666 nonzeros
Variable types: 0 continuous, 2128 integer (2080 binary)
Root relaxation presolved: 2128 rows, 63874 columns, 189794 nonzeros


Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
   25532    4.3742482e+01   0.000000e+00   3.408203e+04      5s
   37436    4.4000000e+01   0.000000e+00   0.000000e+00      7s
   37436    4.4000000e+01   0.000000e+00   0.000000e+00      7s

Root relaxation: objective 4.400000e+01, 37436 iterations, 6.67 seconds (5.33 work units)
Total elapsed time = 16.21s (DegenMoves)

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

     0     0   44.00000    0  601          -   44.00000      -     -   17s
H    0     0                       8.0000000   44.00000   450%     -   17s
H    0     0                       9.0000000   44.00000   389%     -   18s
H    0     0                      10.0000000   44.00000   340%     -   21s
     0     0   44.00000    0  834   10.00000   44.00000   340%     -   29s
     0     0   44.00000    0  818   10.00000   44.00000   340%     -   31s
     0     0   44.00000    0  889   10.00000   44.00000   340%     -   50s

Cutting planes:
  Gomory: 3
  Lift-and-project: 27
  Cover: 11
  Clique: 12
  MIR: 100
  Zero half: 24
  RLT: 54
  BQP: 3

Explored 1 nodes (67367 simplex iterations) in 50.09 seconds (42.76 work units)
Thread count was 8 (of 8 available processors)

Solution count 3: 10 9 8 

Time limit reached
Best objective 1.000000000000e+01, best bound 4.400000000000e+01, gap 340.0000%

Wrote result file './lp_solutions/grafo9906.38.sol'

