
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Fri Nov  1 21:54:32 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo10235.39.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/grafo10235.39.lp
Reading time = 2.88 seconds
: 103811 rows, 2302 columns, 313504 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 103811 rows, 2302 columns and 313504 nonzeros
Model fingerprint: 0xabcdb734
Variable types: 49 continuous, 2253 integer (2253 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 27331 rows and 9 columns (presolve time = 5s) ...
Presolve removed 27347 rows and 25 columns
Presolve time: 9.10s
Presolved: 76464 rows, 2277 columns, 231874 nonzeros
Variable types: 0 continuous, 2277 integer (2228 binary)
Found heuristic solution: objective 11.0000000
Root relaxation presolved: 2277 rows, 78741 columns, 234151 nonzeros


Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
       0    4.6168085e+02   0.000000e+00   2.145856e+05     14s
    1458    1.2482648e+02   0.000000e+00   8.541002e+05     15s
   10392    4.8983243e+01   0.000000e+00   6.086608e+05     20s
   19528    4.8949763e+01   0.000000e+00   3.184564e+04     25s
   27861    4.8938755e+01   0.000000e+00   4.449762e+04     30s
   36408    4.8931798e+01   0.000000e+00   1.914856e+04     35s
   46060    4.8927113e+01   0.000000e+00   3.995056e+03     40s
   56099    4.8924272e+01   0.000000e+00   6.786714e+03     45s

Root relaxation: time limit, 65624 iterations, 39.44 seconds (12.35 work units)

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

     0     0          -    0        11.00000  229.00000  1982%     -   50s

Explored 1 nodes (65624 simplex iterations) in 50.01 seconds (13.25 work units)
Thread count was 8 (of 8 available processors)

Solution count 2: 11 1 

Time limit reached
Best objective 1.100000000000e+01, best bound 2.290000000000e+02, gap 1981.8182%

Wrote result file './lp_solutions/grafo10235.39.sol'


Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Mon Nov 25 03:40:09 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo10235.39.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/grafo10235.39.lp
Reading time = 0.16 seconds
: 103811 rows, 2302 columns, 313504 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 103811 rows, 2302 columns and 313504 nonzeros
Model fingerprint: 0xabcdb734
Variable types: 49 continuous, 2253 integer (2253 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 27347 rows and 25 columns
Presolve time: 0.75s
Presolved: 76464 rows, 2277 columns, 231874 nonzeros
Variable types: 0 continuous, 2277 integer (2228 binary)
Found heuristic solution: objective 11.0000000
Root relaxation presolved: 2277 rows, 78741 columns, 234151 nonzeros


Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
   22545    4.8945053e+01   0.000000e+00   4.940004e+04      5s
   44877    4.8927598e+01   0.000000e+00   4.445320e+04     10s
   67158    4.8922485e+01   0.000000e+00   1.564666e+03     15s
   79631    4.9000000e+01   0.000000e+00   0.000000e+00     18s
   79631    4.9000000e+01   0.000000e+00   0.000000e+00     18s

Root relaxation: objective 4.900000e+01, 79631 iterations, 16.94 seconds (15.18 work units)
Total elapsed time = 30.58s (DegenMoves)

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

     0     0   49.00000    0  601   11.00000   49.00000   345%     -   34s
H    0     0                      14.0000000   49.00000   250%     -   34s
     0     0          -    0        14.00000   49.00000   250%     -   50s

Cutting planes:
  Gomory: 22
  Cover: 37
  Clique: 36
  MIR: 130
  GUB cover: 2
  Zero half: 61
  RLT: 48
  BQP: 3

Explored 1 nodes (102671 simplex iterations) in 50.11 seconds (47.96 work units)
Thread count was 8 (of 8 available processors)

Solution count 3: 14 11 1 

Time limit reached
Best objective 1.400000000000e+01, best bound 4.900000000000e+01, gap 250.0000%

Wrote result file './lp_solutions/grafo10235.39.sol'

