
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Thu Nov 14 06:03:18 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo3444.41.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/grafo3444.41.lp
Reading time = 0.19 seconds
: 95667 rows, 2189 columns, 288772 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 95667 rows, 2189 columns and 288772 nonzeros
Model fingerprint: 0x107189d4
Variable types: 46 continuous, 2143 integer (2143 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 25497 rows and 28 columns
Presolve time: 0.97s
Presolved: 70170 rows, 2161 columns, 212662 nonzeros
Variable types: 0 continuous, 2161 integer (2115 binary)
Found heuristic solution: objective 6.0000000
Root relaxation presolved: 2161 rows, 72331 columns, 214823 nonzeros


Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
   17494    4.8829825e+01   0.000000e+00   1.266917e+04      5s
   33718    4.9000000e+01   0.000000e+00   0.000000e+00      9s
   33718    4.9000000e+01   0.000000e+00   0.000000e+00      9s

Root relaxation: objective 4.900000e+01, 33718 iterations, 8.09 seconds (4.83 work units)
Total elapsed time = 19.87s (DegenMoves)
Total elapsed time = 21.08s (DegenMoves)

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

     0     0   49.00000    0  444    6.00000   49.00000   717%     -   22s
H    0     0                       7.0000000   49.00000   600%     -   22s
H    0     0                       8.0000000   49.00000   512%     -   25s
H    0     0                      11.0000000   49.00000   345%     -   25s
     0     0   49.00000    0  854   11.00000   49.00000   345%     -   42s
     0     0   49.00000    0  760   11.00000   49.00000   345%     -   46s

Cutting planes:
  Gomory: 2
  Lift-and-project: 8
  Cover: 15
  Clique: 10
  MIR: 181
  Zero half: 79
  RLT: 50

Explored 1 nodes (53815 simplex iterations) in 50.55 seconds (30.84 work units)
Thread count was 8 (of 8 available processors)

Solution count 4: 11 8 7 6 

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

Wrote result file './lp_solutions/grafo3444.41.sol'


Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Fri Nov 22 04:52:54 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo3444.41.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/grafo3444.41.lp
Reading time = 0.15 seconds
: 95667 rows, 2189 columns, 288772 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 95667 rows, 2189 columns and 288772 nonzeros
Model fingerprint: 0x107189d4
Variable types: 46 continuous, 2143 integer (2143 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 25497 rows and 28 columns
Presolve time: 0.66s
Presolved: 70170 rows, 2161 columns, 212662 nonzeros
Variable types: 0 continuous, 2161 integer (2115 binary)
Found heuristic solution: objective 6.0000000
Root relaxation presolved: 2161 rows, 72331 columns, 214823 nonzeros


Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
   25590    4.8821478e+01   0.000000e+00   1.817815e+04      5s
   33718    4.9000000e+01   0.000000e+00   0.000000e+00      7s
   33718    4.9000000e+01   0.000000e+00   0.000000e+00      7s

Root relaxation: objective 4.900000e+01, 33718 iterations, 5.84 seconds (4.83 work units)
Total elapsed time = 15.07s (DegenMoves)

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

     0     0   49.00000    0  444    6.00000   49.00000   717%     -   16s
H    0     0                       7.0000000   49.00000   600%     -   17s
H    0     0                       8.0000000   49.00000   512%     -   18s
H    0     0                      11.0000000   49.00000   345%     -   18s
     0     0   49.00000    0  854   11.00000   49.00000   345%     -   29s
     0     0   49.00000    0  760   11.00000   49.00000   345%     -   32s
     0     0   49.00000    0  765   11.00000   49.00000   345%     -   50s

Cutting planes:
  Gomory: 2
  Lift-and-project: 23
  Cover: 10
  Clique: 10
  MIR: 134
  Zero half: 30
  RLT: 56

Explored 1 nodes (63070 simplex iterations) in 50.08 seconds (43.46 work units)
Thread count was 8 (of 8 available processors)

Solution count 4: 11 8 7 6 

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

Wrote result file './lp_solutions/grafo3444.41.sol'

