
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Mon Nov 18 21:58:26 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo3038.38.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/grafo3038.38.lp
Reading time = 0.23 seconds
: 127747 rows, 2158 columns, 385168 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 127747 rows, 2158 columns and 385168 nonzeros
Model fingerprint: 0x45c74e40
Variable types: 47 continuous, 2111 integer (2111 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 43818 rows and 23 columns
Presolve time: 0.93s
Presolved: 83929 rows, 2135 columns, 254080 nonzeros
Variable types: 0 continuous, 2135 integer (2088 binary)
Root relaxation presolved: 2129 rows, 86058 columns, 256215 nonzeros


Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
   18444    4.7848079e+01   0.000000e+00   7.688889e+04      5s
   40493    4.7000000e+01   0.000000e+00   0.000000e+00     10s
   40493    4.7000000e+01   0.000000e+00   0.000000e+00     10s
   40493    4.7000000e+01   0.000000e+00   0.000000e+00     10s

Root relaxation: objective 4.700000e+01, 40493 iterations, 8.79 seconds (5.94 work units)
Total elapsed time = 18.49s (DegenMoves)

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

     0     0   47.00000    0  463          -   47.00000      -     -   19s
H    0     0                       8.0000000   47.00000   487%     -   19s
H    0     0                       9.0000000   47.00000   422%     -   19s
     0     0   47.00000    0  819    9.00000   47.00000   422%     -   33s
H    0     0                      10.0000000   47.00000   370%     -   34s
     0     0   47.00000    0  797   10.00000   47.00000   370%     -   35s
     0     0   47.00000    0  779   10.00000   47.00000   370%     -   50s

Cutting planes:
  Gomory: 5
  Lift-and-project: 28
  Cover: 5
  Clique: 23
  MIR: 143
  Zero half: 44
  RLT: 75
  BQP: 4

Explored 1 nodes (64186 simplex iterations) in 50.03 seconds (45.12 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 4.700000000000e+01, gap 370.0000%

Wrote result file './lp_solutions/grafo3038.38.sol'


Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Mon Nov 25 02:42:16 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo3038.38.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/grafo3038.38.lp
Reading time = 0.20 seconds
: 127747 rows, 2158 columns, 385168 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 127747 rows, 2158 columns and 385168 nonzeros
Model fingerprint: 0x45c74e40
Variable types: 47 continuous, 2111 integer (2111 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 43818 rows and 23 columns
Presolve time: 0.83s
Presolved: 83929 rows, 2135 columns, 254080 nonzeros
Variable types: 0 continuous, 2135 integer (2088 binary)
Root relaxation presolved: 2129 rows, 86058 columns, 256215 nonzeros


Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
   23442    4.6811742e+01   0.000000e+00   4.229019e+04      5s
   40493    4.7000000e+01   0.000000e+00   0.000000e+00      8s
   40493    4.7000000e+01   0.000000e+00   0.000000e+00      8s
   40493    4.7000000e+01   0.000000e+00   0.000000e+00      8s

Root relaxation: objective 4.700000e+01, 40493 iterations, 7.20 seconds (5.94 work units)
Total elapsed time = 15.61s (DegenMoves)

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

     0     0   47.00000    0  463          -   47.00000      -     -   16s
H    0     0                       8.0000000   47.00000   487%     -   16s
H    0     0                       9.0000000   47.00000   422%     -   16s
     0     0   47.00000    0  819    9.00000   47.00000   422%     -   29s
H    0     0                      10.0000000   47.00000   370%     -   30s
     0     0   47.00000    0  797   10.00000   47.00000   370%     -   30s
     0     0   47.00000    0  779   10.00000   47.00000   370%     -   50s

Cutting planes:
  Gomory: 5
  Lift-and-project: 28
  Cover: 5
  Clique: 23
  MIR: 143
  Zero half: 44
  RLT: 75
  BQP: 4

Explored 1 nodes (68937 simplex iterations) in 50.03 seconds (51.04 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 4.700000000000e+01, gap 370.0000%

Wrote result file './lp_solutions/grafo3038.38.sol'

