/tmp/clpr

yes
| ?- [library('clpqr/examples/simplex')].
{consulting /freyung/christian/sicstus2.1.9.clp/library/clpqr/examples/simplex.pl...}
{/freyung/christian/sicstus2.1.9.clp/library/clpqr/examples/simplex.pl consulted, 230 msec 15360 bytes}

yes
| ?- time(example(N,V,O)).
%%% Timing 00:00:00.010     0.010

N = 1,
O = 17200.0,
V = [40.0,160.0] ? ;
%%% Timing 00:00:00.020     0.020

N = 2,
O = 7.0,
V = [1.0,0.0,1.5] ? ;
%%% Timing 00:00:00.020     0.020

N = 3,
O = 18850.0,
V = [38.0,170.0] ? ;
%%% Timing 00:00:00.030     0.030

N = 4,
O = 310.0,
V = [7.0,2.0] ? ;
%%% Timing 00:00:00.030     0.030

N = 5,
O = 5.0,
V = [0.0,0.0,2.5000000000000004] ? ;
%%% Timing 00:00:00.020     0.020

N = 6,
O = -7.0,
V = [1.0,0.0,1.5] ? ;
%%% Timing 00:00:00.070     0.070

N = 7,
O = -70.0,
V = [3.000000000000003,0.0,0.0,4.0,1.9999999999999998,0.0,5.0] ? ;
%%% Timing 00:00:00.070     0.070

N = 8,
O = -19.500000000000007,
V = [0.0,3.4999999999999982,0.0,0.0,0.0,0.5000000000000009,0.0] ? ;
%%% Timing 00:00:00.220     0.220

N = 9,
O = 1167185.7255923203,
V = [9.462945942265794,5.194418913398691,13.466605392156858,4.31985294117647,10.36764705882353,0.0,60.0,63.4629459422658,62.311070261437905,69.54656862745097,66.91176470588235,70.58823529411765,0.0,0.0,0.0,0.0,0.0,1411.7647058823532] ? ;
%%% Timing 00:00:00.390     0.390

N = utility,
O = 46554.76190476336,
V = [0.0,161.90476190476357,28.571428571428214,142.8571428571422,666.6666666666667,0.0,0.0,0.0,999.9999999999999,0.0,1914.2857142857135,1928.5714285714234,0.0,1985.7142857142862,3999.9999999999973,397.6190476190506,2180.9523809523735,0.0,0.0,1000.0,500.00000000000006,2000.0000000000002,100.0,5000.000000000001,250.0000000000009,600.0,114.28571428571195,0.0] ? ;
%%% Timing 00:00:00.220     0.220

N = electricity,
O = 15628.571428582796,
V = [0.0,428.5714285714289,28.57142857142867,_A,_B,0.0,0.0,0.0,_C,_D,_E,_F,_G,_H,1000.0,500.0,2000.0,100.0],
{_A+0.6923076923076922*_G=<235.16483516483487},
{_G>=0.0},
{_A>=0.0},
{_D=185.71428571428618+1.5*_A+0.4999999999999999*_G},
{_F=1128.571428571429-_G},
{_H=1985.7142857142853+_G},
{_C=814.285714285714-1.5*_A-0.4999999999999999*_G},
{_E=1914.2857142857165-_G},
{_B=542.8571428571427-_A} ? ;
%%% Timing 00:00:00.300     0.300

N = water,
O = 23449.999999986194,
V = [0.0,0.0,0.0,999.9999999944121,5.587935447700301e-09,0.0,49.999999999999545,_A,333.333333337678,_B,3999.999999999989,0.0,2483.333333332131,0.0,0.0,5000.0,250.0,600.0,_C,0.0],
{_C=5.000000000000014*_A},
{_A>=6.08224581810644e-13},
{_B=616.666666662262-_A},
{_A=<22.222222222222626} ? ;
%%% Timing 00:00:00.050     0.050

no
| ?- ^D