Gurobi 7.0.1 (win64) logging started 12/13/16 05:35:49

Set parameter Presolve to value 1

Gurobi Optimizer version 7.0.1 build v7.0.1rc0 (win64)
Copyright (c) 2016, Gurobi Optimization, Inc.

Read LP format model from file model0.lp
Reading time = 0.01 seconds
: 30 rows, 40 columns, 128 nonzeros
Optimize a model with 30 rows, 40 columns and 128 nonzeros
Model has 1 quadratic constraint
Coefficient statistics:
  Matrix range     [1e+00, 4e+01]
  QMatrix range    [3e-02, 2e+00]
  Objective range  [1e+00, 1e+02]
  Bounds range     [1e-01, 5e-01]
  RHS range        [2e-01, 9e+00]
Presolve removed 3 rows and 4 columns
Presolve time: 0.01s
Presolved: 27 rows, 37 columns, 118 nonzeros
Ordering time: 0.00s

Barrier statistics:
 AA' NZ     : 9.900e+01
 Factor NZ  : 2.580e+02
 Factor Ops : 3.090e+03 (less than 1 second per iteration)
 Threads    : 1

                  Objective                Residual
Iter       Primal          Dual         Primal    Dual     Compl     Time
   0  -6.78546697e+01  2.18174527e+02  4.38e+00 7.81e+00  1.98e+01     0s
   1  -2.07318097e+01  1.40304275e+02  2.25e-01 4.35e+00  3.16e+00     0s
   2   1.19100893e+01  3.92828483e+01  3.49e-02 1.75e-01  4.06e-01     0s
   3   2.48030509e+01  2.98437036e+01  6.79e-03 9.66e-15  7.24e-02     0s
   4   2.80674539e+01  2.85840432e+01  1.20e-04 2.03e-14  7.01e-03     0s
   5   2.83156762e+01  2.83427901e+01  1.01e-07 3.05e-14  3.58e-04     0s
   6   2.83260437e+01  2.83260467e+01  1.65e-11 2.44e-14  4.06e-08     0s
   7   2.83260450e+01  2.83260450e+01  1.28e-14 1.51e-14  4.06e-11     0s

Barrier solved model in 7 iterations and 0.11 seconds
Optimal objective 2.83260450e+01


Gurobi 7.0.1 (win64) logging started 12/13/16 05:36:30

Set parameter Presolve to value 1

Gurobi Optimizer version 7.0.1 build v7.0.1rc0 (win64)
Copyright (c) 2016, Gurobi Optimization, Inc.

Read LP format model from file model1.lp
Reading time = 0.01 seconds
: 12 rows, 38 columns, 87 nonzeros
Optimize a model with 12 rows, 38 columns and 87 nonzeros
Model has 1 quadratic constraint
Model has 7 piecewise-linear objective terms
Coefficient statistics:
  Matrix range     [1e+00, 1e+00]
  QMatrix range    [3e-02, 2e+00]
  Objective range  [1e+00, 1e+02]
  Bounds range     [1e-01, 5e-01]
  RHS range        [2e-01, 5e-01]
Presolve removed 2 rows and 5 columns
Presolve time: 0.01s
Presolved: 10 rows, 34 columns, 78 nonzeros
Ordering time: 0.00s

Barrier statistics:
 AA' NZ     : 2.800e+01
 Factor NZ  : 5.500e+01
 Factor Ops : 3.850e+02 (less than 1 second per iteration)
 Threads    : 1

                  Objective                Residual
Iter       Primal          Dual         Primal    Dual     Compl     Time
   0  -4.71472763e+01  2.20899880e+02  3.65e+00 8.81e+00  1.82e+01     0s
   1  -4.19467743e+00  1.08177804e+02  1.95e-01 7.15e-01  2.48e+00     0s
   2   2.19785089e+01  3.48098287e+01  1.29e-02 2.07e-02  2.50e-01     0s
   3   2.82095860e+01  2.91646901e+01  6.06e-04 8.27e-05  1.83e-02     0s
   4   2.86632988e+01  2.86891737e+01  6.81e-07 5.37e-06  4.83e-04     0s
   5   2.86804086e+01  2.86804139e+01  7.65e-11 8.19e-10  9.90e-08     0s
   6   2.86804110e+01  2.86804110e+01  4.54e-12 1.22e-14  1.52e-13     0s

Barrier solved model in 6 iterations and 0.04 seconds
Optimal objective 2.86804110e+01