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Model Checking Contest 2018
8th edition, Bratislava, Slovakia, June 26, 2018
Execution of r284-csrt-152749175000358
Last Updated
June 26, 2018

About the Execution of ITS-Tools for NQueens-PT-20

Execution Summary
Max Memory
Used (MB)		 Time wait (ms) CPU Usage (ms) I/O Wait (ms) Computed Result Execution
Status
15757.450 650364.00 2591514.00 86.80 FFTFTFFFFFTFFFTF normal

Execution Chart

We display below the execution chart for this examination (boot time has been removed).

Trace from the execution

Waiting for the VM to be ready (probing ssh)
.................
/home/mcc/execution
total 492K
-rw-r--r-- 1 mcc users 3.6K May 30 21:47 CTLCardinality.txt
-rw-r--r-- 1 mcc users 20K May 30 21:47 CTLCardinality.xml
-rw-r--r-- 1 mcc users 2.6K May 29 15:51 CTLFireability.txt
-rw-r--r-- 1 mcc users 14K May 29 15:51 CTLFireability.xml
-rw-r--r-- 1 mcc users 2.5K May 28 09:54 LTLCardinality.txt
-rw-r--r-- 1 mcc users 12K May 28 09:54 LTLCardinality.xml
-rw-r--r-- 1 mcc users 1.9K May 28 08:10 LTLFireability.txt
-rw-r--r-- 1 mcc users 8.1K May 28 08:10 LTLFireability.xml
-rw-r--r-- 1 mcc users 1 May 24 11:17 NewModel
-rw-r--r-- 1 mcc users 3.6K May 28 06:39 ReachabilityCardinality.txt
-rw-r--r-- 1 mcc users 19K May 28 06:39 ReachabilityCardinality.xml
-rw-r--r-- 1 mcc users 104 May 26 06:29 ReachabilityDeadlock.txt
-rw-r--r-- 1 mcc users 342 May 26 06:29 ReachabilityDeadlock.xml
-rw-r--r-- 1 mcc users 3.6K May 27 04:09 ReachabilityFireability.txt
-rw-r--r-- 1 mcc users 20K May 27 04:09 ReachabilityFireability.xml
-rw-r--r-- 1 mcc users 1.6K May 28 07:31 UpperBounds.txt
-rw-r--r-- 1 mcc users 3.6K May 28 07:31 UpperBounds.xml
-rw-r--r-- 1 mcc users 6 May 24 11:17 equiv_col
-rw-r--r-- 1 mcc users 3 May 24 11:17 instance
-rw-r--r-- 1 mcc users 6 May 24 11:17 iscolored
-rw-r--r-- 1 mcc users 335K May 24 11:17 model.pnml
=====================================================================
Generated by BenchKit 2-3637
Executing tool itstools
Input is NQueens-PT-20, examination is ReachabilityCardinality
Time confinement is 3600 seconds
Memory confinement is 16384 MBytes
Number of cores is 4
Run identifier is r284-csrt-152749175000358
=====================================================================

--------------------
content from stdout:

=== Data for post analysis generated by BenchKit (invocation template)

The expected result is a vector of booleans
BOOL_VECTOR

here is the order used to build the result vector(from text file)
FORMULA_NAME NQueens-PT-20-ReachabilityCardinality-00
FORMULA_NAME NQueens-PT-20-ReachabilityCardinality-01
FORMULA_NAME NQueens-PT-20-ReachabilityCardinality-02
FORMULA_NAME NQueens-PT-20-ReachabilityCardinality-03
FORMULA_NAME NQueens-PT-20-ReachabilityCardinality-04
FORMULA_NAME NQueens-PT-20-ReachabilityCardinality-05
FORMULA_NAME NQueens-PT-20-ReachabilityCardinality-06
FORMULA_NAME NQueens-PT-20-ReachabilityCardinality-07
FORMULA_NAME NQueens-PT-20-ReachabilityCardinality-08
FORMULA_NAME NQueens-PT-20-ReachabilityCardinality-09
FORMULA_NAME NQueens-PT-20-ReachabilityCardinality-10
FORMULA_NAME NQueens-PT-20-ReachabilityCardinality-11
FORMULA_NAME NQueens-PT-20-ReachabilityCardinality-12
FORMULA_NAME NQueens-PT-20-ReachabilityCardinality-13
FORMULA_NAME NQueens-PT-20-ReachabilityCardinality-14
FORMULA_NAME NQueens-PT-20-ReachabilityCardinality-15

=== Now, execution of the tool begins

BK_START 1527928925890

FORMULA NQueens-PT-20-ReachabilityCardinality-02 TRUE TECHNIQUES TOPOLOGICAL INITIAL_STATE
Using solver Z3 to compute partial order matrices.
Built C files in :
/home/mcc/execution
Invoking ITS tools like this :CommandLine [args=[/home/mcc/BenchKit/itstools/plugins/fr.lip6.move.gal.itstools.binaries_1.0.0.201805151631/bin/its-reach-linux64, --gc-threshold, 2000000, --quiet, -i, /home/mcc/execution/ReachabilityCardinality.pnml.gal, -t, CGAL, -reachable-file, ReachabilityCardinality.prop, --nowitness], workingDir=/home/mcc/execution]

its-reach command run as :

/home/mcc/BenchKit/itstools/plugins/fr.lip6.move.gal.itstools.binaries_1.0.0.201805151631/bin/its-reach-linux64 --gc-threshold 2000000 --quiet -i /home/mcc/execution/ReachabilityCardinality.pnml.gal -t CGAL -reachable-file ReachabilityCardinality.prop --nowitness
Loading property file ReachabilityCardinality.prop.
Read [reachable] property : NQueens-PT-20-ReachabilityCardinality-00 with value :((((L_38<=P_12_11)&&(R_35>=2))&&(P_12_10>=1))||((P_10_0>=2)&&((P_3_4<=P_13_12)||(P_8_15<=P_9_12))))
Read [reachable] property : NQueens-PT-20-ReachabilityCardinality-01 with value :(P_4_6>=3)
Read [invariant] property : NQueens-PT-20-ReachabilityCardinality-03 with value :(P_1_3<=L_16)
Read [reachable] property : NQueens-PT-20-ReachabilityCardinality-04 with value :((P_16_15>=1)&&((!(P_12_1<=P_9_2))||(!(P_12_10<=cY_1))))
Read [reachable] property : NQueens-PT-20-ReachabilityCardinality-05 with value :((((P_19_14<=cX_14)||(P_17_2<=cY_1))&&(P_13_18<=P_6_15))&&(((P_10_18>=2)&&(P_12_1<=P_10_3))&&((P_14_6>=3)||(R_32>=3))))
Read [reachable] property : NQueens-PT-20-ReachabilityCardinality-06 with value :((((P_15_3>=1)||(cY_3>=1))&&((P_10_18>=1)&&(P_4_10>=2)))&&(!((P_15_9>=2)&&(P_13_5>=3))))
Read [reachable] property : NQueens-PT-20-ReachabilityCardinality-07 with value :(R_30>=3)
Read [reachable] property : NQueens-PT-20-ReachabilityCardinality-08 with value :(((P_2_14>=3)||(P_11_0<=P_12_13))&&(cY_6>=2))
Read [reachable] property : NQueens-PT-20-ReachabilityCardinality-09 with value :((P_16_3>=1)&&(P_0_16>=3))
Read [reachable] property : NQueens-PT-20-ReachabilityCardinality-10 with value :((P_3_3>=1)&&(!((P_2_16<=P_19_0)||(P_19_10>=2))))
Read [reachable] property : NQueens-PT-20-ReachabilityCardinality-11 with value :(P_18_16>=3)
Read [reachable] property : NQueens-PT-20-ReachabilityCardinality-12 with value :(((P_6_0<=P_3_14)&&(!(L_26>=3)))&&(((R_17>=2)||(R_13>=2))&&(R_27<=P_18_11)))
Read [reachable] property : NQueens-PT-20-ReachabilityCardinality-13 with value :(((P_0_8<=P_5_16)||(!(P_13_18<=P_5_12)))&&(P_7_19>=2))
Read [invariant] property : NQueens-PT-20-ReachabilityCardinality-14 with value :(((!(P_18_8<=cY_11))||(!(P_9_15>=2)))||((!(P_19_8>=1))&&((P_4_3>=3)&&(L_27<=L_12))))
Read [reachable] property : NQueens-PT-20-ReachabilityCardinality-15 with value :(!((!(P_11_2>=2))||(P_14_14>=3)))
Presburger conditions satisfied. Using coverability to approximate state space in K-Induction.
// Phase 1: matrix 400 rows 518 cols
invariant :P_1_17 + -1'P_3_16 + -1'P_3_17 + -1'P_3_18 + -1'P_4_15 + -2'P_4_16 + -2'P_4_17 + -2'P_4_18 + -1'P_5_14 + -2'P_5_15 + -3'P_5_16 + -3'P_5_17 + -2'P_5_18 + -1'P_6_13 + -2'P_6_14 + -3'P_6_15 + -4'P_6_16 + -3'P_6_17 + -2'P_6_18 + -1'P_7_12 + -2'P_7_13 + -3'P_7_14 + -4'P_7_15 + -4'P_7_16 + -3'P_7_17 + -2'P_7_18 + -1'P_8_11 + -2'P_8_12 + -3'P_8_13 + -4'P_8_14 + -4'P_8_15 + -4'P_8_16 + -3'P_8_17 + -2'P_8_18 + -1'P_9_10 + -2'P_9_11 + -3'P_9_12 + -4'P_9_13 + -4'P_9_14 + -4'P_9_15 + -4'P_9_16 + -3'P_9_17 + -2'P_9_18 + -1'P_10_9 + -2'P_10_10 + -3'P_10_11 + -4'P_10_12 + -4'P_10_13 + -4'P_10_14 + -4'P_10_15 + -4'P_10_16 + -3'P_10_17 + -2'P_10_18 + -1'P_11_8 + -2'P_11_9 + -3'P_11_10 + -4'P_11_11 + -4'P_11_12 + -4'P_11_13 + -4'P_11_14 + -4'P_11_15 + -4'P_11_16 + -3'P_11_17 + -2'P_11_18 + -1'P_12_7 + -2'P_12_8 + -3'P_12_9 + -4'P_12_10 + -4'P_12_11 + -4'P_12_12 + -4'P_12_13 + -4'P_12_14 + -4'P_12_15 + -4'P_12_16 + -3'P_12_17 + -2'P_12_18 + -1'P_13_6 + -2'P_13_7 + -3'P_13_8 + -4'P_13_9 + -4'P_13_10 + -4'P_13_11 + -4'P_13_12 + -4'P_13_13 + -4'P_13_14 + -4'P_13_15 + -4'P_13_16 + -3'P_13_17 + -2'P_13_18 + -1'P_14_5 + -2'P_14_6 + -3'P_14_7 + -4'P_14_8 + -4'P_14_9 + -4'P_14_10 + -4'P_14_11 + -4'P_14_12 + -4'P_14_13 + -4'P_14_14 + -4'P_14_15 + -4'P_14_16 + -3'P_14_17 + -2'P_14_18 + -1'P_15_4 + -2'P_15_5 + -3'P_15_6 + -4'P_15_7 + -4'P_15_8 + -4'P_15_9 + -4'P_15_10 + -4'P_15_11 + -4'P_15_12 + -4'P_15_13 + -4'P_15_14 + -4'P_15_15 + -4'P_15_16 + -3'P_15_17 + -2'P_15_18 + -1'P_16_3 + -2'P_16_4 + -3'P_16_5 + -4'P_16_6 + -4'P_16_7 + -4'P_16_8 + -4'P_16_9 + -4'P_16_10 + -4'P_16_11 + -4'P_16_12 + -4'P_16_13 + -4'P_16_14 + -4'P_16_15 + -4'P_16_16 + -3'P_16_17 + -2'P_16_18 + -1'P_17_2 + -2'P_17_3 + -3'P_17_4 + -4'P_17_5 + -4'P_17_6 + -4'P_17_7 + -4'P_17_8 + -4'P_17_9 + -4'P_17_10 + -4'P_17_11 + -4'P_17_12 + -4'P_17_13 + -4'P_17_14 + -4'P_17_15 + -4'P_17_16 + -3'P_17_17 + -2'P_17_18 + -1'P_18_2 + -2'P_18_3 + -3'P_18_4 + -3'P_18_5 + -3'P_18_6 + -3'P_18_7 + -3'P_18_8 + -3'P_18_9 + -3'P_18_10 + -3'P_18_11 + -3'P_18_12 + -3'P_18_13 + -3'P_18_14 + -3'P_18_15 + -3'P_18_16 + -2'P_18_17 + -1'P_18_18 + -1'P_19_3 + -1'P_19_4 + -1'P_19_5 + -1'P_19_6 + -1'P_19_7 + -1'P_19_8 + -1'P_19_9 + -1'P_19_10 + -1'P_19_11 + -1'P_19_12 + -1'P_19_13 + -1'P_19_14 + -1'P_19_15 + -1'P_19_16 + cX_18 + 3'cX_19 + cY_17 + 2'cY_18 + 4'cY_19 + -3'L_0 + -2'L_1 + -1'L_2 + -1'L_37 + -2'L_38 + -1'R_20 + -2'R_21 + -3'R_22 + -4'R_23 + -4'R_24 + -4'R_25 + -4'R_26 + -4'R_27 + -4'R_28 + -4'R_29 + -4'R_30 + -4'R_31 + -4'R_32 + -4'R_33 + -4'R_34 + -4'R_35 + -4'R_36 + -4'R_37 + -5'R_38 + -7'R_39 = -76
invariant :P_2_4 + P_3_3 + P_3_4 + P_3_5 + P_4_2 + P_4_3 + 2'P_4_4 + P_4_5 + P_4_6 + P_5_3 + P_5_4 + P_5_5 + -1'P_5_8 + -1'P_5_9 + -1'P_5_10 + -1'P_5_11 + -1'P_5_12 + -1'P_5_13 + -1'P_5_14 + -1'P_5_15 + -1'P_5_16 + -1'P_5_17 + -1'P_5_18 + P_6_4 + -1'P_6_7 + -1'P_6_8 + -2'P_6_9 + -2'P_6_10 + -2'P_6_11 + -2'P_6_12 + -2'P_6_13 + -2'P_6_14 + -2'P_6_15 + -2'P_6_16 + -2'P_6_17 + -1'P_6_18 + -1'P_7_6 + -1'P_7_7 + -2'P_7_8 + -2'P_7_9 + -3'P_7_10 + -3'P_7_11 + -3'P_7_12 + -3'P_7_13 + -3'P_7_14 + -3'P_7_15 + -3'P_7_16 + -2'P_7_17 + -1'P_7_18 + -1'P_8_5 + -1'P_8_6 + -2'P_8_7 + -2'P_8_8 + -3'P_8_9 + -3'P_8_10 + -4'P_8_11 + -4'P_8_12 + -4'P_8_13 + -4'P_8_14 + -4'P_8_15 + -3'P_8_16 + -2'P_8_17 + -1'P_8_18 + -1'P_9_5 + -2'P_9_6 + -2'P_9_7 + -3'P_9_8 + -3'P_9_9 + -4'P_9_10 + -4'P_9_11 + -5'P_9_12 + -5'P_9_13 + -5'P_9_14 + -4'P_9_15 + -3'P_9_16 + -2'P_9_17 + -1'P_9_18 + -1'P_10_5 + -2'P_10_6 + -3'P_10_7 + -3'P_10_8 + -4'P_10_9 + -4'P_10_10 + -5'P_10_11 + -5'P_10_12 + -6'P_10_13 + -5'P_10_14 + -4'P_10_15 + -3'P_10_16 + -2'P_10_17 + -1'P_10_18 + -1'P_11_5 + -2'P_11_6 + -3'P_11_7 + -4'P_11_8 + -4'P_11_9 + -5'P_11_10 + -5'P_11_11 + -6'P_11_12 + -5'P_11_13 + -5'P_11_14 + -4'P_11_15 + -3'P_11_16 + -2'P_11_17 + -1'P_11_18 + -1'P_12_5 + -2'P_12_6 + -3'P_12_7 + -4'P_12_8 + -5'P_12_9 + -5'P_12_10 + -6'P_12_11 + -5'P_12_12 + -5'P_12_13 + -4'P_12_14 + -4'P_12_15 + -3'P_12_16 + -2'P_12_17 + -1'P_12_18 + -1'P_13_5 + -2'P_13_6 + -3'P_13_7 + -4'P_13_8 + -5'P_13_9 + -6'P_13_10 + -5'P_13_11 + -5'P_13_12 + -4'P_13_13 + -4'P_13_14 + -3'P_13_15 + -3'P_13_16 + -2'P_13_17 + -1'P_13_18 + -1'P_14_5 + -2'P_14_6 + -3'P_14_7 + -4'P_14_8 + -5'P_14_9 + -5'P_14_10 + -5'P_14_11 + -4'P_14_12 + -4'P_14_13 + -3'P_14_14 + -3'P_14_15 + -2'P_14_16 + -2'P_14_17 + -1'P_14_18 + -1'P_15_5 + -2'P_15_6 + -3'P_15_7 + -4'P_15_8 + -4'P_15_9 + -4'P_15_10 + -4'P_15_11 + -4'P_15_12 + -3'P_15_13 + -3'P_15_14 + -2'P_15_15 + -2'P_15_16 + -1'P_15_17 + -1'P_15_18 + -1'P_16_5 + -2'P_16_6 + -3'P_16_7 + -3'P_16_8 + -3'P_16_9 + -3'P_16_10 + -3'P_16_11 + -3'P_16_12 + -3'P_16_13 + -2'P_16_14 + -2'P_16_15 + -1'P_16_16 + -1'P_16_17 + -1'P_17_5 + -2'P_17_6 + -2'P_17_7 + -2'P_17_8 + -2'P_17_9 + -2'P_17_10 + -2'P_17_11 + -2'P_17_12 + -2'P_17_13 + -2'P_17_14 + -1'P_17_15 + -1'P_17_16 + -1'P_18_5 + -1'P_18_6 + -1'P_18_7 + -1'P_18_8 + -1'P_18_9 + -1'P_18_10 + -1'P_18_11 + -1'P_18_12 + -1'P_18_13 + -1'P_18_14 + -1'P_18_15 + -1'cX_5 + -2'cX_6 + -3'cX_7 + -4'cX_8 + -5'cX_9 + -6'cX_10 + -7'cX_11 + -8'cX_12 + -9'cX_13 + -10'cX_14 + -11'cX_15 + -12'cX_16 + -13'cX_17 + -14'cX_18 + -15'cX_19 + -1'cY_5 + -2'cY_6 + -3'cY_7 + -4'cY_8 + -5'cY_9 + -6'cY_10 + -7'cY_11 + -8'cY_12 + -9'cY_13 + -10'cY_14 + -11'cY_15 + -12'cY_16 + -13'cY_17 + -14'cY_18 + -15'cY_19 + 8'L_0 + 7'L_1 + 7'L_2 + 6'L_3 + 6'L_4 + 5'L_5 + 5'L_6 + 4'L_7 + 4'L_8 + 3'L_9 + 3'L_10 + 2'L_11 + 2'L_12 + L_13 + L_14 + L_24 + L_25 + 2'L_26 + 2'L_27 + 3'L_28 + 3'L_29 + 4'L_30 + 4'L_31 + 5'L_32 + 5'L_33 + 6'L_34 + 6'L_35 + 7'L_36 + 7'L_37 + 8'L_38 + R_7 + R_8 + 2'R_9 + 2'R_10 + 3'R_11 + 3'R_12 + 4'R_13 + 4'R_14 + 5'R_15 + 5'R_16 + 6'R_17 + 6'R_18 + 7'R_19 + 7'R_20 + 8'R_21 + 8'R_22 + 9'R_23 + 9'R_24 + 11'R_25 + 12'R_26 + 14'R_27 + 15'R_28 + 17'R_29 + 18'R_30 + 20'R_31 + 21'R_32 + 23'R_33 + 24'R_34 + 26'R_35 + 27'R_36 + 28'R_37 + 29'R_38 + 30'R_39 = 293
invariant :P_0_0 + R_1 = 1
invariant :P_17_1 + P_17_2 + P_17_3 + P_17_4 + P_17_5 + P_17_6 + P_17_7 + P_17_8 + P_17_9 + P_17_10 + P_17_11 + P_17_12 + P_17_13 + P_17_14 + P_17_15 + P_17_16 + P_17_17 + P_17_18 + P_18_2 + P_18_3 + P_18_4 + P_18_5 + P_18_6 + P_18_7 + P_18_8 + P_18_9 + P_18_10 + P_18_11 + P_18_12 + P_18_13 + P_18_14 + P_18_15 + P_18_16 + P_18_17 + P_19_3 + P_19_4 + P_19_5 + P_19_6 + P_19_7 + P_19_8 + P_19_9 + P_19_10 + P_19_11 + P_19_12 + P_19_13 + P_19_14 + P_19_15 + P_19_16 + cX_17 + cX_18 + cX_19 + -1'L_36 + -1'L_37 + -1'L_38 + -1'R_37 + -1'R_38 + -1'R_39 = -3
invariant :P_0_8 + P_3_8 + P_4_7 + P_4_8 + P_4_9 + P_5_6 + P_5_7 + 2'P_5_8 + P_5_9 + P_5_10 + P_6_5 + P_6_6 + 2'P_6_7 + 2'P_6_8 + 2'P_6_9 + P_6_10 + P_6_11 + P_7_4 + P_7_5 + 2'P_7_6 + 2'P_7_7 + 3'P_7_8 + 2'P_7_9 + 2'P_7_10 + P_7_11 + P_7_12 + P_8_3 + P_8_4 + 2'P_8_5 + 2'P_8_6 + 3'P_8_7 + 3'P_8_8 + 3'P_8_9 + 2'P_8_10 + 2'P_8_11 + P_8_12 + P_8_13 + P_9_2 + P_9_3 + 2'P_9_4 + 2'P_9_5 + 3'P_9_6 + 3'P_9_7 + 4'P_9_8 + 3'P_9_9 + 3'P_9_10 + 2'P_9_11 + 2'P_9_12 + P_9_13 + P_9_14 + P_10_3 + P_10_4 + 2'P_10_5 + 2'P_10_6 + 3'P_10_7 + 3'P_10_8 + 3'P_10_9 + 2'P_10_10 + 2'P_10_11 + P_10_12 + P_10_13 + -1'P_10_16 + -1'P_10_17 + -1'P_10_18 + P_11_4 + P_11_5 + 2'P_11_6 + 2'P_11_7 + 3'P_11_8 + 2'P_11_9 + 2'P_11_10 + P_11_11 + P_11_12 + -1'P_11_15 + -1'P_11_16 + -2'P_11_17 + -1'P_11_18 + P_12_5 + P_12_6 + 2'P_12_7 + 2'P_12_8 + 2'P_12_9 + P_12_10 + P_12_11 + -1'P_12_14 + -1'P_12_15 + -2'P_12_16 + -1'P_12_17 + -1'P_12_18 + P_13_6 + P_13_7 + 2'P_13_8 + P_13_9 + P_13_10 + -1'P_13_13 + -1'P_13_14 + -2'P_13_15 + -1'P_13_16 + -1'P_13_17 + P_14_7 + P_14_8 + P_14_9 + -1'P_14_12 + -1'P_14_13 + -2'P_14_14 + -1'P_14_15 + -1'P_14_16 + P_15_8 + -1'P_15_11 + -1'P_15_12 + -2'P_15_13 + -1'P_15_14 + -1'P_15_15 + -1'P_16_10 + -1'P_16_11 + -2'P_16_12 + -1'P_16_13 + -1'P_16_14 + -1'P_17_9 + -1'P_17_10 + -2'P_17_11 + -1'P_17_12 + -1'P_17_13 + -1'P_18_9 + -2'P_18_10 + -1'P_18_11 + -1'P_18_12 + -1'P_19_9 + -1'P_19_10 + -1'P_19_11 + -1'cX_10 + -2'cX_11 + -3'cX_12 + -4'cX_13 + -5'cX_14 + -6'cX_15 + -7'cX_16 + -8'cX_17 + -9'cX_18 + -10'cX_19 + -1'cY_9 + -2'cY_10 + -3'cY_11 + -4'cY_12 + -5'cY_13 + -6'cY_14 + -7'cY_15 + -8'cY_16 + -9'cY_17 + -10'cY_18 + -11'cY_19 + 6'L_0 + 6'L_1 + 5'L_2 + 5'L_3 + 4'L_4 + 4'L_5 + 3'L_6 + 3'L_7 + 2'L_8 + 2'L_9 + L_10 + L_11 + L_29 + L_30 + 2'L_31 + 2'L_32 + 3'L_33 + 3'L_34 + 4'L_35 + 4'L_36 + 5'L_37 + 5'L_38 + R_12 + R_13 + 2'R_14 + 2'R_15 + 3'R_16 + 3'R_17 + 4'R_18 + 4'R_19 + 5'R_20 + 5'R_21 + 6'R_22 + 6'R_23 + 7'R_24 + 7'R_25 + 8'R_26 + 8'R_27 + 9'R_28 + 9'R_29 + 11'R_30 + 12'R_31 + 14'R_32 + 15'R_33 + 16'R_34 + 17'R_35 + 18'R_36 + 19'R_37 + 20'R_38 + 21'R_39 = 204
invariant :P_0_5 + P_3_5 + P_4_4 + P_4_5 + P_4_6 + P_5_3 + P_5_4 + 2'P_5_5 + P_5_6 + P_5_7 + P_6_2 + P_6_3 + 2'P_6_4 + 2'P_6_5 + 2'P_6_6 + P_6_7 + P_6_8 + P_7_3 + P_7_4 + 2'P_7_5 + P_7_6 + P_7_7 + -1'P_7_10 + -1'P_7_11 + -1'P_7_12 + -1'P_7_13 + -1'P_7_14 + -1'P_7_15 + -1'P_7_16 + -1'P_7_17 + -1'P_7_18 + P_8_4 + P_8_5 + P_8_6 + -1'P_8_9 + -1'P_8_10 + -2'P_8_11 + -2'P_8_12 + -2'P_8_13 + -2'P_8_14 + -2'P_8_15 + -2'P_8_16 + -2'P_8_17 + -1'P_8_18 + P_9_5 + -1'P_9_8 + -1'P_9_9 + -2'P_9_10 + -2'P_9_11 + -3'P_9_12 + -3'P_9_13 + -3'P_9_14 + -3'P_9_15 + -3'P_9_16 + -2'P_9_17 + -1'P_9_18 + -1'P_10_7 + -1'P_10_8 + -2'P_10_9 + -2'P_10_10 + -3'P_10_11 + -3'P_10_12 + -4'P_10_13 + -4'P_10_14 + -4'P_10_15 + -3'P_10_16 + -2'P_10_17 + -1'P_10_18 + -1'P_11_6 + -1'P_11_7 + -2'P_11_8 + -2'P_11_9 + -3'P_11_10 + -3'P_11_11 + -4'P_11_12 + -4'P_11_13 + -5'P_11_14 + -4'P_11_15 + -3'P_11_16 + -2'P_11_17 + -1'P_11_18 + -1'P_12_6 + -2'P_12_7 + -2'P_12_8 + -3'P_12_9 + -3'P_12_10 + -4'P_12_11 + -4'P_12_12 + -5'P_12_13 + -4'P_12_14 + -4'P_12_15 + -3'P_12_16 + -2'P_12_17 + -1'P_12_18 + -1'P_13_6 + -2'P_13_7 + -3'P_13_8 + -3'P_13_9 + -4'P_13_10 + -4'P_13_11 + -5'P_13_12 + -4'P_13_13 + -4'P_13_14 + -3'P_13_15 + -3'P_13_16 + -2'P_13_17 + -1'P_13_18 + -1'P_14_6 + -2'P_14_7 + -3'P_14_8 + -4'P_14_9 + -4'P_14_10 + -5'P_14_11 + -4'P_14_12 + -4'P_14_13 + -3'P_14_14 + -3'P_14_15 + -2'P_14_16 + -2'P_14_17 + -1'P_14_18 + -1'P_15_6 + -2'P_15_7 + -3'P_15_8 + -4'P_15_9 + -5'P_15_10 + -4'P_15_11 + -4'P_15_12 + -3'P_15_13 + -3'P_15_14 + -2'P_15_15 + -2'P_15_16 + -1'P_15_17 + -1'P_15_18 + -1'P_16_6 + -2'P_16_7 + -3'P_16_8 + -4'P_16_9 + -4'P_16_10 + -4'P_16_11 + -3'P_16_12 + -3'P_16_13 + -2'P_16_14 + -2'P_16_15 + -1'P_16_16 + -1'P_16_17 + -1'P_17_6 + -2'P_17_7 + -3'P_17_8 + -3'P_17_9 + -3'P_17_10 + -3'P_17_11 + -3'P_17_12 + -2'P_17_13 + -2'P_17_14 + -1'P_17_15 + -1'P_17_16 + -1'P_18_6 + -2'P_18_7 + -2'P_18_8 + -2'P_18_9 + -2'P_18_10 + -2'P_18_11 + -2'P_18_12 + -2'P_18_13 + -1'P_18_14 + -1'P_18_15 + -1'P_19_6 + -1'P_19_7 + -1'P_19_8 + -1'P_19_9 + -1'P_19_10 + -1'P_19_11 + -1'P_19_12 + -1'P_19_13 + -1'P_19_14 + -1'cX_7 + -2'cX_8 + -3'cX_9 + -4'cX_10 + -5'cX_11 + -6'cX_12 + -7'cX_13 + -8'cX_14 + -9'cX_15 + -10'cX_16 + -11'cX_17 + -12'cX_18 + -13'cX_19 + -1'cY_6 + -2'cY_7 + -3'cY_8 + -4'cY_9 + -5'cY_10 + -6'cY_11 + -7'cY_12 + -8'cY_13 + -9'cY_14 + -10'cY_15 + -11'cY_16 + -12'cY_17 + -13'cY_18 + -14'cY_19 + 8'L_0 + 7'L_1 + 7'L_2 + 6'L_3 + 6'L_4 + 5'L_5 + 5'L_6 + 4'L_7 + 4'L_8 + 3'L_9 + 3'L_10 + 2'L_11 + 2'L_12 + L_13 + L_14 + L_26 + L_27 + 2'L_28 + 2'L_29 + 3'L_30 + 3'L_31 + 4'L_32 + 4'L_33 + 5'L_34 + 5'L_35 + 6'L_36 + 6'L_37 + 7'L_38 + R_9 + R_10 + 2'R_11 + 2'R_12 + 3'R_13 + 3'R_14 + 4'R_15 + 4'R_16 + 5'R_17 + 5'R_18 + 6'R_19 + 6'R_20 + 7'R_21 + 7'R_22 + 8'R_23 + 8'R_24 + 9'R_25 + 9'R_26 + 11'R_27 + 12'R_28 + 14'R_29 + 15'R_30 + 17'R_31 + 18'R_32 + 20'R_33 + 21'R_34 + 23'R_35 + 24'R_36 + 25'R_37 + 26'R_38 + 27'R_39 = 260
invariant :P_9_1 + P_9_2 + P_9_3 + P_9_4 + P_9_5 + P_9_6 + P_9_7 + P_9_8 + P_9_9 + P_9_10 + P_9_11 + P_9_12 + P_9_13 + P_9_14 + P_9_15 + P_9_16 + P_9_17 + P_9_18 + P_10_2 + P_10_3 + P_10_4 + P_10_5 + P_10_6 + P_10_7 + P_10_8 + P_10_9 + P_10_10 + P_10_11 + P_10_12 + P_10_13 + P_10_14 + P_10_15 + P_10_16 + P_10_17 + P_11_3 + P_11_4 + P_11_5 + P_11_6 + P_11_7 + P_11_8 + P_11_9 + P_11_10 + P_11_11 + P_11_12 + P_11_13 + P_11_14 + P_11_15 + P_11_16 + P_12_4 + P_12_5 + P_12_6 + P_12_7 + P_12_8 + P_12_9 + P_12_10 + P_12_11 + P_12_12 + P_12_13 + P_12_14 + P_12_15 + P_13_5 + P_13_6 + P_13_7 + P_13_8 + P_13_9 + P_13_10 + P_13_11 + P_13_12 + P_13_13 + P_13_14 + P_14_6 + P_14_7 + P_14_8 + P_14_9 + P_14_10 + P_14_11 + P_14_12 + P_14_13 + P_15_7 + P_15_8 + P_15_9 + P_15_10 + P_15_11 + P_15_12 + P_16_8 + P_16_9 + P_16_10 + P_16_11 + P_17_9 + P_17_10 + -1'P_19_9 + -1'P_19_10 + cX_9 + cX_10 + cX_11 + cX_12 + cX_13 + cX_14 + cX_15 + cX_16 + cX_17 + cX_18 + cX_19 + -1'L_28 + -1'L_29 + -1'L_30 + -1'L_31 + -1'L_32 + -1'L_33 + -1'L_34 + -1'L_35 + -1'L_36 + -1'L_37 + -1'L_38 + -1'R_29 + -1'R_30 + -1'R_31 + -1'R_32 + -1'R_33 + -1'R_34 + -1'R_35 + -1'R_36 + -1'R_37 + -1'R_38 + -1'R_39 = -11
invariant :P_2_6 + P_3_5 + P_3_6 + P_3_7 + P_4_4 + P_4_5 + 2'P_4_6 + P_4_7 + P_4_8 + P_5_3 + P_5_4 + 2'P_5_5 + 2'P_5_6 + 2'P_5_7 + P_5_8 + P_5_9 + P_6_2 + P_6_3 + 2'P_6_4 + 2'P_6_5 + 3'P_6_6 + 2'P_6_7 + 2'P_6_8 + P_6_9 + P_6_10 + P_7_3 + P_7_4 + 2'P_7_5 + 2'P_7_6 + 2'P_7_7 + P_7_8 + P_7_9 + -1'P_7_12 + -1'P_7_13 + -1'P_7_14 + -1'P_7_15 + -1'P_7_16 + -1'P_7_17 + -1'P_7_18 + P_8_4 + P_8_5 + 2'P_8_6 + P_8_7 + P_8_8 + -1'P_8_11 + -1'P_8_12 + -2'P_8_13 + -2'P_8_14 + -2'P_8_15 + -2'P_8_16 + -2'P_8_17 + -1'P_8_18 + P_9_5 + P_9_6 + P_9_7 + -1'P_9_10 + -1'P_9_11 + -2'P_9_12 + -2'P_9_13 + -3'P_9_14 + -3'P_9_15 + -3'P_9_16 + -2'P_9_17 + -1'P_9_18 + P_10_6 + -1'P_10_9 + -1'P_10_10 + -2'P_10_11 + -2'P_10_12 + -3'P_10_13 + -3'P_10_14 + -4'P_10_15 + -3'P_10_16 + -2'P_10_17 + -1'P_10_18 + -1'P_11_8 + -1'P_11_9 + -2'P_11_10 + -2'P_11_11 + -3'P_11_12 + -3'P_11_13 + -4'P_11_14 + -3'P_11_15 + -3'P_11_16 + -2'P_11_17 + -1'P_11_18 + -1'P_12_7 + -1'P_12_8 + -2'P_12_9 + -2'P_12_10 + -3'P_12_11 + -3'P_12_12 + -4'P_12_13 + -3'P_12_14 + -3'P_12_15 + -2'P_12_16 + -2'P_12_17 + -1'P_12_18 + -1'P_13_7 + -2'P_13_8 + -2'P_13_9 + -3'P_13_10 + -3'P_13_11 + -4'P_13_12 + -3'P_13_13 + -3'P_13_14 + -2'P_13_15 + -2'P_13_16 + -1'P_13_17 + -1'P_13_18 + -1'P_14_7 + -2'P_14_8 + -3'P_14_9 + -3'P_14_10 + -4'P_14_11 + -3'P_14_12 + -3'P_14_13 + -2'P_14_14 + -2'P_14_15 + -1'P_14_16 + -1'P_14_17 + -1'P_15_7 + -2'P_15_8 + -3'P_15_9 + -4'P_15_10 + -3'P_15_11 + -3'P_15_12 + -2'P_15_13 + -2'P_15_14 + -1'P_15_15 + -1'P_15_16 + -1'P_16_7 + -2'P_16_8 + -3'P_16_9 + -3'P_16_10 + -3'P_16_11 + -2'P_16_12 + -2'P_16_13 + -1'P_16_14 + -1'P_16_15 + -1'P_17_7 + -2'P_17_8 + -2'P_17_9 + -2'P_17_10 + -2'P_17_11 + -2'P_17_12 + -1'P_17_13 + -1'P_17_14 + -1'P_18_7 + -1'P_18_8 + -1'P_18_9 + -1'P_18_10 + -1'P_18_11 + -1'P_18_12 + -1'P_18_13 + -1'cX_7 + -2'cX_8 + -3'cX_9 + -4'cX_10 + -5'cX_11 + -6'cX_12 + -7'cX_13 + -8'cX_14 + -9'cX_15 + -10'cX_16 + -11'cX_17 + -12'cX_18 + -13'cX_19 + -1'cY_7 + -2'cY_8 + -3'cY_9 + -4'cY_10 + -5'cY_11 + -6'cY_12 + -7'cY_13 + -8'cY_14 + -9'cY_15 + -10'cY_16 + -11'cY_17 + -12'cY_18 + -13'cY_19 + 7'L_0 + 6'L_1 + 6'L_2 + 5'L_3 + 5'L_4 + 4'L_5 + 4'L_6 + 3'L_7 + 3'L_8 + 2'L_9 + 2'L_10 + L_11 + L_12 + L_26 + L_27 + 2'L_28 + 2'L_29 + 3'L_30 + 3'L_31 + 4'L_32 + 4'L_33 + 5'L_34 + 5'L_35 + 6'L_36 + 6'L_37 + 7'L_38 + R_9 + R_10 + 2'R_11 + 2'R_12 + 3'R_13 + 3'R_14 + 4'R_15 + 4'R_16 + 5'R_17 + 5'R_18 + 6'R_19 + 6'R_20 + 7'R_21 + 7'R_22 + 8'R_23 + 8'R_24 + 9'R_25 + 9'R_26 + 11'R_27 + 12'R_28 + 14'R_29 + 15'R_30 + 17'R_31 + 18'R_32 + 20'R_33 + 21'R_34 + 22'R_35 + 23'R_36 + 24'R_37 + 25'R_38 + 26'R_39 = 254
invariant :P_2_13 + P_3_12 + P_3_13 + P_3_14 + P_4_11 + P_4_12 + 2'P_4_13 + P_4_14 + P_4_15 + P_5_10 + P_5_11 + 2'P_5_12 + 2'P_5_13 + 2'P_5_14 + P_5_15 + P_5_16 + P_6_9 + P_6_10 + 2'P_6_11 + 2'P_6_12 + 3'P_6_13 + 2'P_6_14 + 2'P_6_15 + P_6_16 + P_6_17 + P_7_8 + P_7_9 + 2'P_7_10 + 2'P_7_11 + 3'P_7_12 + 3'P_7_13 + 3'P_7_14 + 2'P_7_15 + 2'P_7_16 + P_7_17 + P_7_18 + P_8_7 + P_8_8 + 2'P_8_9 + 2'P_8_10 + 3'P_8_11 + 3'P_8_12 + 4'P_8_13 + 3'P_8_14 + 3'P_8_15 + 2'P_8_16 + 2'P_8_17 + P_8_18 + P_9_6 + P_9_7 + 2'P_9_8 + 2'P_9_9 + 3'P_9_10 + 3'P_9_11 + 4'P_9_12 + 4'P_9_13 + 4'P_9_14 + 3'P_9_15 + 3'P_9_16 + 2'P_9_17 + P_9_18 + P_10_5 + P_10_6 + 2'P_10_7 + 2'P_10_8 + 3'P_10_9 + 3'P_10_10 + 4'P_10_11 + 4'P_10_12 + 5'P_10_13 + 4'P_10_14 + 4'P_10_15 + 3'P_10_16 + 2'P_10_17 + P_10_18 + P_11_4 + P_11_5 + 2'P_11_6 + 2'P_11_7 + 3'P_11_8 + 3'P_11_9 + 4'P_11_10 + 4'P_11_11 + 5'P_11_12 + 5'P_11_13 + 5'P_11_14 + 4'P_11_15 + 3'P_11_16 + 2'P_11_17 + P_11_18 + P_12_3 + P_12_4 + 2'P_12_5 + 2'P_12_6 + 3'P_12_7 + 3'P_12_8 + 4'P_12_9 + 4'P_12_10 + 5'P_12_11 + 5'P_12_12 + 6'P_12_13 + 5'P_12_14 + 4'P_12_15 + 3'P_12_16 + 2'P_12_17 + P_12_18 + P_13_2 + P_13_3 + 2'P_13_4 + 2'P_13_5 + 3'P_13_6 + 3'P_13_7 + 4'P_13_8 + 4'P_13_9 + 5'P_13_10 + 5'P_13_11 + 6'P_13_12 + 6'P_13_13 + 5'P_13_14 + 4'P_13_15 + 3'P_13_16 + 2'P_13_17 + P_13_18 + P_14_3 + P_14_4 + 2'P_14_5 + 2'P_14_6 + 3'P_14_7 + 3'P_14_8 + 4'P_14_9 + 4'P_14_10 + 5'P_14_11 + 5'P_14_12 + 5'P_14_13 + 4'P_14_14 + 3'P_14_15 + 2'P_14_16 + P_14_17 + P_15_4 + P_15_5 + 2'P_15_6 + 2'P_15_7 + 3'P_15_8 + 3'P_15_9 + 4'P_15_10 + 4'P_15_11 + 4'P_15_12 + 4'P_15_13 + 3'P_15_14 + 2'P_15_15 + P_15_16 + P_16_5 + P_16_6 + 2'P_16_7 + 2'P_16_8 + 3'P_16_9 + 3'P_16_10 + 3'P_16_11 + 3'P_16_12 + 3'P_16_13 + 2'P_16_14 + P_16_15 + P_17_6 + P_17_7 + 2'P_17_8 + 2'P_17_9 + 2'P_17_10 + 2'P_17_11 + 2'P_17_12 + 2'P_17_13 + P_17_14 + P_18_7 + P_18_8 + P_18_9 + P_18_10 + P_18_11 + P_18_12 + P_18_13 + -1'cX_14 + -2'cX_15 + -3'cX_16 + -4'cX_17 + -5'cX_18 + -6'cX_19 + -1'cY_14 + -2'cY_15 + -3'cY_16 + -4'cY_17 + -5'cY_18 + -6'cY_19 + 3'L_0 + 3'L_1 + 2'L_2 + 2'L_3 + L_4 + L_5 + L_33 + L_34 + 2'L_35 + 2'L_36 + 3'L_37 + 3'L_38 + R_16 + R_17 + 2'R_18 + 2'R_19 + 3'R_20 + 3'R_21 + 4'R_22 + 4'R_23 + 5'R_24 + 5'R_25 + 6'R_26 + 6'R_27 + 6'R_28 + 6'R_29 + 6'R_30 + 6'R_31 + 6'R_32 + 6'R_33 + 7'R_34 + 8'R_35 + 9'R_36 + 10'R_37 + 11'R_38 + 12'R_39 = 117
invariant :P_3_1 + P_3_2 + P_3_3 + P_3_4 + P_3_5 + P_3_6 + P_3_7 + P_3_8 + P_3_9 + P_3_10 + P_3_11 + P_3_12 + P_3_13 + P_3_14 + P_3_15 + P_3_16 + P_3_17 + P_3_18 + P_4_2 + P_4_3 + P_4_4 + P_4_5 + P_4_6 + P_4_7 + P_4_8 + P_4_9 + P_4_10 + P_4_11 + P_4_12 + P_4_13 + P_4_14 + P_4_15 + P_4_16 + P_4_17 + P_5_3 + P_5_4 + P_5_5 + P_5_6 + P_5_7 + P_5_8 + P_5_9 + P_5_10 + P_5_11 + P_5_12 + P_5_13 + P_5_14 + P_5_15 + P_5_16 + P_6_4 + P_6_5 + P_6_6 + P_6_7 + P_6_8 + P_6_9 + P_6_10 + P_6_11 + P_6_12 + P_6_13 + P_6_14 + P_6_15 + P_7_5 + P_7_6 + P_7_7 + P_7_8 + P_7_9 + P_7_10 + P_7_11 + P_7_12 + P_7_13 + P_7_14 + P_8_6 + P_8_7 + P_8_8 + P_8_9 + P_8_10 + P_8_11 + P_8_12 + P_8_13 + P_9_7 + P_9_8 + P_9_9 + P_9_10 + P_9_11 + P_9_12 + P_10_8 + P_10_9 + P_10_10 + P_10_11 + P_11_9 + P_11_10 + -1'P_13_9 + -1'P_13_10 + -1'P_14_8 + -1'P_14_9 + -1'P_14_10 + -1'P_14_11 + -1'P_15_7 + -1'P_15_8 + -1'P_15_9 + -1'P_15_10 + -1'P_15_11 + -1'P_15_12 + -1'P_16_6 + -1'P_16_7 + -1'P_16_8 + -1'P_16_9 + -1'P_16_10 + -1'P_16_11 + -1'P_16_12 + -1'P_16_13 + -1'P_17_5 + -1'P_17_6 + -1'P_17_7 + -1'P_17_8 + -1'P_17_9 + -1'P_17_10 + -1'P_17_11 + -1'P_17_12 + -1'P_17_13 + -1'P_17_14 + -1'P_18_4 + -1'P_18_5 + -1'P_18_6 + -1'P_18_7 + -1'P_18_8 + -1'P_18_9 + -1'P_18_10 + -1'P_18_11 + -1'P_18_12 + -1'P_18_13 + -1'P_18_14 + -1'P_18_15 + -1'P_19_3 + -1'P_19_4 + -1'P_19_5 + -1'P_19_6 + -1'P_19_7 + -1'P_19_8 + -1'P_19_9 + -1'P_19_10 + -1'P_19_11 + -1'P_19_12 + -1'P_19_13 + -1'P_19_14 + -1'P_19_15 + -1'P_19_16 + cX_3 + cX_4 + cX_5 + cX_6 + cX_7 + cX_8 + cX_9 + cX_10 + cX_11 + cX_12 + cX_13 + cX_14 + cX_15 + cX_16 + cX_17 + cX_18 + cX_19 + -1'L_22 + -1'L_23 + -1'L_24 + -1'L_25 + -1'L_26 + -1'L_27 + -1'L_28 + -1'L_29 + -1'L_30 + -1'L_31 + -1'L_32 + -1'L_33 + -1'L_34 + -1'L_35 + -1'L_36 + -1'L_37 + -1'L_38 + -1'R_23 + -1'R_24 + -1'R_25 + -1'R_26 + -1'R_27 + -1'R_28 + -1'R_29 + -1'R_30 + -1'R_31 + -1'R_32 + -1'R_33 + -1'R_34 + -1'R_35 + -1'R_36 + -1'R_37 + -1'R_38 + -1'R_39 = -17
invariant :P_2_17 + P_3_16 + P_3_17 + P_3_18 + P_4_15 + P_4_16 + 2'P_4_17 + P_4_18 + P_5_14 + P_5_15 + 2'P_5_16 + 2'P_5_17 + P_5_18 + P_6_13 + P_6_14 + 2'P_6_15 + 2'P_6_16 + 2'P_6_17 + P_6_18 + P_7_12 + P_7_13 + 2'P_7_14 + 2'P_7_15 + 2'P_7_16 + 2'P_7_17 + P_7_18 + P_8_11 + P_8_12 + 2'P_8_13 + 2'P_8_14 + 2'P_8_15 + 2'P_8_16 + 2'P_8_17 + P_8_18 + P_9_10 + P_9_11 + 2'P_9_12 + 2'P_9_13 + 2'P_9_14 + 2'P_9_15 + 2'P_9_16 + 2'P_9_17 + P_9_18 + P_10_9 + P_10_10 + 2'P_10_11 + 2'P_10_12 + 2'P_10_13 + 2'P_10_14 + 2'P_10_15 + 2'P_10_16 + 2'P_10_17 + P_10_18 + P_11_8 + P_11_9 + 2'P_11_10 + 2'P_11_11 + 2'P_11_12 + 2'P_11_13 + 2'P_11_14 + 2'P_11_15 + 2'P_11_16 + 2'P_11_17 + P_11_18 + P_12_7 + P_12_8 + 2'P_12_9 + 2'P_12_10 + 2'P_12_11 + 2'P_12_12 + 2'P_12_13 + 2'P_12_14 + 2'P_12_15 + 2'P_12_16 + 2'P_12_17 + P_12_18 + P_13_6 + P_13_7 + 2'P_13_8 + 2'P_13_9 + 2'P_13_10 + 2'P_13_11 + 2'P_13_12 + 2'P_13_13 + 2'P_13_14 + 2'P_13_15 + 2'P_13_16 + 2'P_13_17 + P_13_18 + P_14_5 + P_14_6 + 2'P_14_7 + 2'P_14_8 + 2'P_14_9 + 2'P_14_10 + 2'P_14_11 + 2'P_14_12 + 2'P_14_13 + 2'P_14_14 + 2'P_14_15 + 2'P_14_16 + 2'P_14_17 + P_14_18 + P_15_4 + P_15_5 + 2'P_15_6 + 2'P_15_7 + 2'P_15_8 + 2'P_15_9 + 2'P_15_10 + 2'P_15_11 + 2'P_15_12 + 2'P_15_13 + 2'P_15_14 + 2'P_15_15 + 2'P_15_16 + 2'P_15_17 + P_15_18 + P_16_3 + P_16_4 + 2'P_16_5 + 2'P_16_6 + 2'P_16_7 + 2'P_16_8 + 2'P_16_9 + 2'P_16_10 + 2'P_16_11 + 2'P_16_12 + 2'P_16_13 + 2'P_16_14 + 2'P_16_15 + 2'P_16_16 + 2'P_16_17 + P_16_18 + P_17_2 + P_17_3 + 2'P_17_4 + 2'P_17_5 + 2'P_17_6 + 2'P_17_7 + 2'P_17_8 + 2'P_17_9 + 2'P_17_10 + 2'P_17_11 + 2'P_17_12 + 2'P_17_13 + 2'P_17_14 + 2'P_17_15 + 2'P_17_16 + 2'P_17_17 + P_17_18 + P_18_3 + P_18_4 + P_18_5 + P_18_6 + P_18_7 + P_18_8 + P_18_9 + P_18_10 + P_18_11 + P_18_12 + P_18_13 + P_18_14 + P_18_15 + P_18_16 + P_18_17 + -1'cX_18 + -2'cX_19 + -1'cY_18 + -2'cY_19 + L_0 + L_1 + L_37 + L_38 + R_20 + R_21 + 2'R_22 + 2'R_23 + 2'R_24 + 2'R_25 + 2'R_26 + 2'R_27 + 2'R_28 + 2'R_29 + 2'R_30 + 2'R_31 + 2'R_32 + 2'R_33 + 2'R_34 + 2'R_35 + 2'R_36 + 2'R_37 + 3'R_38 + 4'R_39 = 39
invariant :P_2_2 + -1'P_3_4 + -1'P_3_5 + -1'P_3_6 + -1'P_3_7 + -1'P_3_8 + -1'P_3_9 + -1'P_3_10 + -1'P_3_11 + -1'P_3_12 + -1'P_3_13 + -1'P_3_14 + -1'P_3_15 + -1'P_3_16 + -1'P_3_17 + -1'P_3_18 + -1'P_4_3 + -1'P_4_4 + -2'P_4_5 + -2'P_4_6 + -2'P_4_7 + -2'P_4_8 + -2'P_4_9 + -2'P_4_10 + -2'P_4_11 + -2'P_4_12 + -2'P_4_13 + -2'P_4_14 + -2'P_4_15 + -2'P_4_16 + -2'P_4_17 + -1'P_4_18 + -1'P_5_3 + -2'P_5_4 + -2'P_5_5 + -3'P_5_6 + -3'P_5_7 + -3'P_5_8 + -3'P_5_9 + -3'P_5_10 + -3'P_5_11 + -3'P_5_12 + -3'P_5_13 + -3'P_5_14 + -3'P_5_15 + -3'P_5_16 + -2'P_5_17 + -1'P_5_18 + -1'P_6_3 + -2'P_6_4 + -3'P_6_5 + -3'P_6_6 + -4'P_6_7 + -4'P_6_8 + -4'P_6_9 + -4'P_6_10 + -4'P_6_11 + -4'P_6_12 + -4'P_6_13 + -4'P_6_14 + -4'P_6_15 + -3'P_6_16 + -2'P_6_17 + -1'P_6_18 + -1'P_7_3 + -2'P_7_4 + -3'P_7_5 + -4'P_7_6 + -4'P_7_7 + -5'P_7_8 + -5'P_7_9 + -5'P_7_10 + -5'P_7_11 + -5'P_7_12 + -5'P_7_13 + -5'P_7_14 + -4'P_7_15 + -3'P_7_16 + -2'P_7_17 + -1'P_7_18 + -1'P_8_3 + -2'P_8_4 + -3'P_8_5 + -4'P_8_6 + -5'P_8_7 + -5'P_8_8 + -6'P_8_9 + -6'P_8_10 + -6'P_8_11 + -6'P_8_12 + -6'P_8_13 + -5'P_8_14 + -4'P_8_15 + -3'P_8_16 + -2'P_8_17 + -1'P_8_18 + -1'P_9_3 + -2'P_9_4 + -3'P_9_5 + -4'P_9_6 + -5'P_9_7 + -6'P_9_8 + -6'P_9_9 + -7'P_9_10 + -7'P_9_11 + -7'P_9_12 + -6'P_9_13 + -5'P_9_14 + -4'P_9_15 + -3'P_9_16 + -2'P_9_17 + -1'P_9_18 + -1'P_10_3 + -2'P_10_4 + -3'P_10_5 + -4'P_10_6 + -5'P_10_7 + -6'P_10_8 + -7'P_10_9 + -7'P_10_10 + -8'P_10_11 + -7'P_10_12 + -6'P_10_13 + -5'P_10_14 + -4'P_10_15 + -3'P_10_16 + -2'P_10_17 + -1'P_10_18 + -1'P_11_3 + -2'P_11_4 + -3'P_11_5 + -4'P_11_6 + -5'P_11_7 + -6'P_11_8 + -7'P_11_9 + -8'P_11_10 + -7'P_11_11 + -7'P_11_12 + -6'P_11_13 + -5'P_11_14 + -4'P_11_15 + -3'P_11_16 + -2'P_11_17 + -1'P_11_18 + -1'P_12_3 + -2'P_12_4 + -3'P_12_5 + -4'P_12_6 + -5'P_12_7 + -6'P_12_8 + -7'P_12_9 + -7'P_12_10 + -7'P_12_11 + -6'P_12_12 + -6'P_12_13 + -5'P_12_14 + -4'P_12_15 + -3'P_12_16 + -2'P_12_17 + -1'P_12_18 + -1'P_13_3 + -2'P_13_4 + -3'P_13_5 + -4'P_13_6 + -5'P_13_7 + -6'P_13_8 + -6'P_13_9 + -6'P_13_10 + -6'P_13_11 + -6'P_13_12 + -5'P_13_13 + -5'P_13_14 + -4'P_13_15 + -3'P_13_16 + -2'P_13_17 + -1'P_13_18 + -1'P_14_3 + -2'P_14_4 + -3'P_14_5 + -4'P_14_6 + -5'P_14_7 + -5'P_14_8 + -5'P_14_9 + -5'P_14_10 + -5'P_14_11 + -5'P_14_12 + -5'P_14_13 + -4'P_14_14 + -4'P_14_15 + -3'P_14_16 + -2'P_14_17 + -1'P_14_18 + -1'P_15_3 + -2'P_15_4 + -3'P_15_5 + -4'P_15_6 + -4'P_15_7 + -4'P_15_8 + -4'P_15_9 + -4'P_15_10 + -4'P_15_11 + -4'P_15_12 + -4'P_15_13 + -4'P_15_14 + -3'P_15_15 + -3'P_15_16 + -2'P_15_17 + -1'P_15_18 + -1'P_16_3 + -2'P_16_4 + -3'P_16_5 + -3'P_16_6 + -3'P_16_7 + -3'P_16_8 + -3'P_16_9 + -3'P_16_10 + -3'P_16_11 + -3'P_16_12 + -3'P_16_13 + -3'P_16_14 + -3'P_16_15 + -2'P_16_16 + -2'P_16_17 + -1'P_16_18 + -1'P_17_3 + -2'P_17_4 + -2'P_17_5 + -2'P_17_6 + -2'P_17_7 + -2'P_17_8 + -2'P_17_9 + -2'P_17_10 + -2'P_17_11 + -2'P_17_12 + -2'P_17_13 + -2'P_17_14 + -2'P_17_15 + -2'P_17_16 + -1'P_17_17 + -1'P_17_18 + -1'P_18_3 + -1'P_18_4 + -1'P_18_5 + -1'P_18_6 + -1'P_18_7 + -1'P_18_8 + -1'P_18_9 + -1'P_18_10 + -1'P_18_11 + -1'P_18_12 + -1'P_18_13 + -1'P_18_14 + -1'P_18_15 + -1'P_18_16 + -1'P_18_17 + -1'cX_3 + -2'cX_4 + -3'cX_5 + -4'cX_6 + -5'cX_7 + -6'cX_8 + -7'cX_9 + -8'cX_10 + -9'cX_11 + -10'cX_12 + -11'cX_13 + -12'cX_14 + -13'cX_15 + -14'cX_16 + -15'cX_17 + -16'cX_18 + -17'cX_19 + -1'cY_3 + -2'cY_4 + -3'cY_5 + -4'cY_6 + -5'cY_7 + -6'cY_8 + -7'cY_9 + -8'cY_10 + -9'cY_11 + -10'cY_12 + -11'cY_13 + -12'cY_14 + -13'cY_15 + -14'cY_16 + -15'cY_17 + -16'cY_18 + -17'cY_19 + 9'L_0 + 8'L_1 + 8'L_2 + 7'L_3 + 7'L_4 + 6'L_5 + 6'L_6 + 5'L_7 + 5'L_8 + 4'L_9 + 4'L_10 + 3'L_11 + 3'L_12 + 2'L_13 + 2'L_14 + L_15 + L_16 + L_22 + L_23 + 2'L_24 + 2'L_25 + 3'L_26 + 3'L_27 + 4'L_28 + 4'L_29 + 5'L_30 + 5'L_31 + 6'L_32 + 6'L_33 + 7'L_34 + 7'L_35 + 8'L_36 + 8'L_37 + 9'L_38 + R_5 + R_6 + 2'R_7 + 2'R_8 + 3'R_9 + 3'R_10 + 4'R_11 + 4'R_12 + 5'R_13 + 5'R_14 + 6'R_15 + 6'R_16 + 7'R_17 + 7'R_18 + 8'R_19 + 8'R_20 + 9'R_21 + 9'R_22 + 11'R_23 + 12'R_24 + 14'R_25 + 15'R_26 + 17'R_27 + 18'R_28 + 20'R_29 + 21'R_30 + 23'R_31 + 24'R_32 + 26'R_33 + 27'R_34 + 29'R_35 + 30'R_36 + 32'R_37 + 33'R_38 + 34'R_39 = 332
invariant :P_17_19 + P_18_18 + P_19_17 + R_37 = 1
invariant :P_5_1 + P_5_2 + P_5_3 + P_5_4 + P_5_5 + P_5_6 + P_5_7 + P_5_8 + P_5_9 + P_5_10 + P_5_11 + P_5_12 + P_5_13 + P_5_14 + P_5_15 + P_5_16 + P_5_17 + P_5_18 + P_6_2 + P_6_3 + P_6_4 + P_6_5 + P_6_6 + P_6_7 + P_6_8 + P_6_9 + P_6_10 + P_6_11 + P_6_12 + P_6_13 + P_6_14 + P_6_15 + P_6_16 + P_6_17 + P_7_3 + P_7_4 + P_7_5 + P_7_6 + P_7_7 + P_7_8 + P_7_9 + P_7_10 + P_7_11 + P_7_12 + P_7_13 + P_7_14 + P_7_15 + P_7_16 + P_8_4 + P_8_5 + P_8_6 + P_8_7 + P_8_8 + P_8_9 + P_8_10 + P_8_11 + P_8_12 + P_8_13 + P_8_14 + P_8_15 + P_9_5 + P_9_6 + P_9_7 + P_9_8 + P_9_9 + P_9_10 + P_9_11 + P_9_12 + P_9_13 + P_9_14 + P_10_6 + P_10_7 + P_10_8 + P_10_9 + P_10_10 + P_10_11 + P_10_12 + P_10_13 + P_11_7 + P_11_8 + P_11_9 + P_11_10 + P_11_11 + P_11_12 + P_12_8 + P_12_9 + P_12_10 + P_12_11 + P_13_9 + P_13_10 + -1'P_15_9 + -1'P_15_10 + -1'P_16_8 + -1'P_16_9 + -1'P_16_10 + -1'P_16_11 + -1'P_17_7 + -1'P_17_8 + -1'P_17_9 + -1'P_17_10 + -1'P_17_11 + -1'P_17_12 + -1'P_18_6 + -1'P_18_7 + -1'P_18_8 + -1'P_18_9 + -1'P_18_10 + -1'P_18_11 + -1'P_18_12 + -1'P_18_13 + -1'P_19_5 + -1'P_19_6 + -1'P_19_7 + -1'P_19_8 + -1'P_19_9 + -1'P_19_10 + -1'P_19_11 + -1'P_19_12 + -1'P_19_13 + -1'P_19_14 + cX_5 + cX_6 + cX_7 + cX_8 + cX_9 + cX_10 + cX_11 + cX_12 + cX_13 + cX_14 + cX_15 + cX_16 + cX_17 + cX_18 + cX_19 + -1'L_24 + -1'L_25 + -1'L_26 + -1'L_27 + -1'L_28 + -1'L_29 + -1'L_30 + -1'L_31 + -1'L_32 + -1'L_33 + -1'L_34 + -1'L_35 + -1'L_36 + -1'L_37 + -1'L_38 + -1'R_25 + -1'R_26 + -1'R_27 + -1'R_28 + -1'R_29 + -1'R_30 + -1'R_31 + -1'R_32 + -1'R_33 + -1'R_34 + -1'R_35 + -1'R_36 + -1'R_37 + -1'R_38 + -1'R_39 = -15
invariant :P_0_11 + P_3_11 + P_4_10 + P_4_11 + P_4_12 + P_5_9 + P_5_10 + 2'P_5_11 + P_5_12 + P_5_13 + P_6_8 + P_6_9 + 2'P_6_10 + 2'P_6_11 + 2'P_6_12 + P_6_13 + P_6_14 + P_7_7 + P_7_8 + 2'P_7_9 + 2'P_7_10 + 3'P_7_11 + 2'P_7_12 + 2'P_7_13 + P_7_14 + P_7_15 + P_8_6 + P_8_7 + 2'P_8_8 + 2'P_8_9 + 3'P_8_10 + 3'P_8_11 + 3'P_8_12 + 2'P_8_13 + 2'P_8_14 + P_8_15 + P_8_16 + P_9_5 + P_9_6 + 2'P_9_7 + 2'P_9_8 + 3'P_9_9 + 3'P_9_10 + 4'P_9_11 + 3'P_9_12 + 3'P_9_13 + 2'P_9_14 + 2'P_9_15 + P_9_16 + P_9_17 + P_10_4 + P_10_5 + 2'P_10_6 + 2'P_10_7 + 3'P_10_8 + 3'P_10_9 + 4'P_10_10 + 4'P_10_11 + 4'P_10_12 + 3'P_10_13 + 3'P_10_14 + 2'P_10_15 + 2'P_10_16 + P_10_17 + P_10_18 + P_11_3 + P_11_4 + 2'P_11_5 + 2'P_11_6 + 3'P_11_7 + 3'P_11_8 + 4'P_11_9 + 4'P_11_10 + 5'P_11_11 + 4'P_11_12 + 4'P_11_13 + 3'P_11_14 + 3'P_11_15 + 2'P_11_16 + 2'P_11_17 + P_11_18 + P_12_2 + P_12_3 + 2'P_12_4 + 2'P_12_5 + 3'P_12_6 + 3'P_12_7 + 4'P_12_8 + 4'P_12_9 + 5'P_12_10 + 5'P_12_11 + 5'P_12_12 + 4'P_12_13 + 4'P_12_14 + 3'P_12_15 + 3'P_12_16 + 2'P_12_17 + P_12_18 + P_13_3 + P_13_4 + 2'P_13_5 + 2'P_13_6 + 3'P_13_7 + 3'P_13_8 + 4'P_13_9 + 4'P_13_10 + 5'P_13_11 + 4'P_13_12 + 4'P_13_13 + 3'P_13_14 + 3'P_13_15 + 2'P_13_16 + P_13_17 + P_14_4 + P_14_5 + 2'P_14_6 + 2'P_14_7 + 3'P_14_8 + 3'P_14_9 + 4'P_14_10 + 4'P_14_11 + 4'P_14_12 + 3'P_14_13 + 3'P_14_14 + 2'P_14_15 + P_14_16 + P_15_5 + P_15_6 + 2'P_15_7 + 2'P_15_8 + 3'P_15_9 + 3'P_15_10 + 4'P_15_11 + 3'P_15_12 + 3'P_15_13 + 2'P_15_14 + P_15_15 + P_16_6 + P_16_7 + 2'P_16_8 + 2'P_16_9 + 3'P_16_10 + 3'P_16_11 + 3'P_16_12 + 2'P_16_13 + P_16_14 + P_17_7 + P_17_8 + 2'P_17_9 + 2'P_17_10 + 3'P_17_11 + 2'P_17_12 + P_17_13 + P_18_8 + P_18_9 + 2'P_18_10 + 2'P_18_11 + P_18_12 + P_19_9 + P_19_10 + P_19_11 + -1'cX_13 + -2'cX_14 + -3'cX_15 + -4'cX_16 + -5'cX_17 + -6'cX_18 + -7'cX_19 + -1'cY_12 + -2'cY_13 + -3'cY_14 + -4'cY_15 + -5'cY_16 + -6'cY_17 + -7'cY_18 + -8'cY_19 + 5'L_0 + 4'L_1 + 4'L_2 + 3'L_3 + 3'L_4 + 2'L_5 + 2'L_6 + L_7 + L_8 + L_32 + L_33 + 2'L_34 + 2'L_35 + 3'L_36 + 3'L_37 + 4'L_38 + R_15 + R_16 + 2'R_17 + 2'R_18 + 3'R_19 + 3'R_20 + 4'R_21 + 4'R_22 + 5'R_23 + 5'R_24 + 6'R_25 + 6'R_26 + 7'R_27 + 7'R_28 + 8'R_29 + 8'R_30 + 8'R_31 + 8'R_32 + 9'R_33 + 10'R_34 + 11'R_35 + 12'R_36 + 13'R_37 + 14'R_38 + 15'R_39 = 149
invariant :P_10_0 + -1'P_11_2 + -1'P_11_3 + -1'P_11_4 + -1'P_11_5 + -1'P_11_6 + -1'P_11_7 + -1'P_11_8 + -1'P_11_9 + -1'P_11_10 + -1'P_11_11 + -1'P_11_12 + -1'P_11_13 + -1'P_11_14 + -1'P_11_15 + -1'P_11_16 + -1'P_11_17 + -1'P_11_18 + -1'P_12_3 + -1'P_12_4 + -1'P_12_5 + -1'P_12_6 + -1'P_12_7 + -1'P_12_8 + -1'P_12_9 + -1'P_12_10 + -1'P_12_11 + -1'P_12_12 + -1'P_12_13 + -1'P_12_14 + -1'P_12_15 + -1'P_12_16 + -1'P_12_17 + -1'P_13_4 + -1'P_13_5 + -1'P_13_6 + -1'P_13_7 + -1'P_13_8 + -1'P_13_9 + -1'P_13_10 + -1'P_13_11 + -1'P_13_12 + -1'P_13_13 + -1'P_13_14 + -1'P_13_15 + -1'P_13_16 + -1'P_14_5 + -1'P_14_6 + -1'P_14_7 + -1'P_14_8 + -1'P_14_9 + -1'P_14_10 + -1'P_14_11 + -1'P_14_12 + -1'P_14_13 + -1'P_14_14 + -1'P_14_15 + -1'P_15_6 + -1'P_15_7 + -1'P_15_8 + -1'P_15_9 + -1'P_15_10 + -1'P_15_11 + -1'P_15_12 + -1'P_15_13 + -1'P_15_14 + -1'P_16_7 + -1'P_16_8 + -1'P_16_9 + -1'P_16_10 + -1'P_16_11 + -1'P_16_12 + -1'P_16_13 + -1'P_17_8 + -1'P_17_9 + -1'P_17_10 + -1'P_17_11 + -1'P_17_12 + -1'P_18_9 + -1'P_18_10 + -1'P_18_11 + -1'P_19_10 + -1'cX_11 + -1'cX_12 + -1'cX_13 + -1'cX_14 + -1'cX_15 + -1'cX_16 + -1'cX_17 + -1'cX_18 + -1'cX_19 + L_29 + L_30 + L_31 + L_32 + L_33 + L_34 + L_35 + L_36 + L_37 + L_38 + R_31 + R_32 + R_33 + R_34 + R_35 + R_36 + R_37 + R_38 + R_39 = 10
invariant :P_1_12 + -1'P_3_11 + -1'P_3_12 + -1'P_3_13 + -1'P_4_10 + -2'P_4_11 + -2'P_4_12 + -2'P_4_13 + -1'P_4_14 + -1'P_5_9 + -2'P_5_10 + -3'P_5_11 + -3'P_5_12 + -3'P_5_13 + -2'P_5_14 + -1'P_5_15 + -1'P_6_8 + -2'P_6_9 + -3'P_6_10 + -4'P_6_11 + -4'P_6_12 + -4'P_6_13 + -3'P_6_14 + -2'P_6_15 + -1'P_6_16 + -1'P_7_7 + -2'P_7_8 + -3'P_7_9 + -4'P_7_10 + -5'P_7_11 + -5'P_7_12 + -5'P_7_13 + -4'P_7_14 + -3'P_7_15 + -2'P_7_16 + -1'P_7_17 + -1'P_8_6 + -2'P_8_7 + -3'P_8_8 + -4'P_8_9 + -5'P_8_10 + -6'P_8_11 + -6'P_8_12 + -6'P_8_13 + -5'P_8_14 + -4'P_8_15 + -3'P_8_16 + -2'P_8_17 + -1'P_8_18 + -1'P_9_5 + -2'P_9_6 + -3'P_9_7 + -4'P_9_8 + -5'P_9_9 + -6'P_9_10 + -7'P_9_11 + -7'P_9_12 + -7'P_9_13 + -6'P_9_14 + -5'P_9_15 + -4'P_9_16 + -3'P_9_17 + -2'P_9_18 + -1'P_10_4 + -2'P_10_5 + -3'P_10_6 + -4'P_10_7 + -5'P_10_8 + -6'P_10_9 + -7'P_10_10 + -8'P_10_11 + -8'P_10_12 + -8'P_10_13 + -7'P_10_14 + -6'P_10_15 + -5'P_10_16 + -4'P_10_17 + -2'P_10_18 + -1'P_11_3 + -2'P_11_4 + -3'P_11_5 + -4'P_11_6 + -5'P_11_7 + -6'P_11_8 + -7'P_11_9 + -8'P_11_10 + -9'P_11_11 + -9'P_11_12 + -9'P_11_13 + -8'P_11_14 + -7'P_11_15 + -6'P_11_16 + -4'P_11_17 + -2'P_11_18 + -1'P_12_2 + -2'P_12_3 + -3'P_12_4 + -4'P_12_5 + -5'P_12_6 + -6'P_12_7 + -7'P_12_8 + -8'P_12_9 + -9'P_12_10 + -10'P_12_11 + -10'P_12_12 + -10'P_12_13 + -9'P_12_14 + -8'P_12_15 + -6'P_12_16 + -4'P_12_17 + -2'P_12_18 + -1'P_13_2 + -2'P_13_3 + -3'P_13_4 + -4'P_13_5 + -5'P_13_6 + -6'P_13_7 + -7'P_13_8 + -8'P_13_9 + -9'P_13_10 + -10'P_13_11 + -10'P_13_12 + -10'P_13_13 + -9'P_13_14 + -7'P_13_15 + -5'P_13_16 + -3'P_13_17 + -1'P_13_18 + -1'P_14_3 + -2'P_14_4 + -3'P_14_5 + -4'P_14_6 + -5'P_14_7 + -6'P_14_8 + -7'P_14_9 + -8'P_14_10 + -9'P_14_11 + -9'P_14_12 + -9'P_14_13 + -7'P_14_14 + -5'P_14_15 + -3'P_14_16 + -1'P_14_17 + -1'P_15_4 + -2'P_15_5 + -3'P_15_6 + -4'P_15_7 + -5'P_15_8 + -6'P_15_9 + -7'P_15_10 + -8'P_15_11 + -8'P_15_12 + -7'P_15_13 + -5'P_15_14 + -3'P_15_15 + -1'P_15_16 + -1'P_16_5 + -2'P_16_6 + -3'P_16_7 + -4'P_16_8 + -5'P_16_9 + -6'P_16_10 + -7'P_16_11 + -6'P_16_12 + -5'P_16_13 + -3'P_16_14 + -1'P_16_15 + -1'P_17_6 + -2'P_17_7 + -3'P_17_8 + -4'P_17_9 + -5'P_17_10 + -5'P_17_11 + -4'P_17_12 + -3'P_17_13 + -1'P_17_14 + -1'P_18_7 + -2'P_18_8 + -3'P_18_9 + -3'P_18_10 + -3'P_18_11 + -2'P_18_12 + -1'P_18_13 + -1'P_19_8 + -1'P_19_9 + -1'P_19_10 + -1'P_19_11 + cX_13 + 3'cX_14 + 5'cX_15 + 7'cX_16 + 9'cX_17 + 11'cX_18 + 13'cX_19 + cY_12 + 2'cY_13 + 4'cY_14 + 6'cY_15 + 8'cY_16 + 10'cY_17 + 12'cY_18 + 14'cY_19 + -8'L_0 + -7'L_1 + -6'L_2 + -5'L_3 + -4'L_4 + -3'L_5 + -2'L_6 + -1'L_7 + -1'L_32 + -2'L_33 + -3'L_34 + -4'L_35 + -5'L_36 + -6'L_37 + -7'L_38 + -1'R_15 + -2'R_16 + -3'R_17 + -4'R_18 + -5'R_19 + -6'R_20 + -7'R_21 + -8'R_22 + -9'R_23 + -10'R_24 + -11'R_25 + -12'R_26 + -13'R_27 + -14'R_28 + -14'R_29 + -14'R_30 + -14'R_31 + -14'R_32 + -15'R_33 + -17'R_34 + -19'R_35 + -21'R_36 + -23'R_37 + -25'R_38 + -27'R_39 = -266
invariant :P_0_10 + P_3_10 + P_4_9 + P_4_10 + P_4_11 + P_5_8 + P_5_9 + 2'P_5_10 + P_5_11 + P_5_12 + P_6_7 + P_6_8 + 2'P_6_9 + 2'P_6_10 + 2'P_6_11 + P_6_12 + P_6_13 + P_7_6 + P_7_7 + 2'P_7_8 + 2'P_7_9 + 3'P_7_10 + 2'P_7_11 + 2'P_7_12 + P_7_13 + P_7_14 + P_8_5 + P_8_6 + 2'P_8_7 + 2'P_8_8 + 3'P_8_9 + 3'P_8_10 + 3'P_8_11 + 2'P_8_12 + 2'P_8_13 + P_8_14 + P_8_15 + P_9_4 + P_9_5 + 2'P_9_6 + 2'P_9_7 + 3'P_9_8 + 3'P_9_9 + 4'P_9_10 + 3'P_9_11 + 3'P_9_12 + 2'P_9_13 + 2'P_9_14 + P_9_15 + P_9_16 + P_10_3 + P_10_4 + 2'P_10_5 + 2'P_10_6 + 3'P_10_7 + 3'P_10_8 + 4'P_10_9 + 4'P_10_10 + 4'P_10_11 + 3'P_10_12 + 3'P_10_13 + 2'P_10_14 + 2'P_10_15 + P_10_16 + P_10_17 + P_11_2 + P_11_3 + 2'P_11_4 + 2'P_11_5 + 3'P_11_6 + 3'P_11_7 + 4'P_11_8 + 4'P_11_9 + 5'P_11_10 + 4'P_11_11 + 4'P_11_12 + 3'P_11_13 + 3'P_11_14 + 2'P_11_15 + 2'P_11_16 + P_11_17 + P_11_18 + P_12_3 + P_12_4 + 2'P_12_5 + 2'P_12_6 + 3'P_12_7 + 3'P_12_8 + 4'P_12_9 + 4'P_12_10 + 4'P_12_11 + 3'P_12_12 + 3'P_12_13 + 2'P_12_14 + 2'P_12_15 + P_12_16 + P_12_17 + P_13_4 + P_13_5 + 2'P_13_6 + 2'P_13_7 + 3'P_13_8 + 3'P_13_9 + 4'P_13_10 + 3'P_13_11 + 3'P_13_12 + 2'P_13_13 + 2'P_13_14 + P_13_15 + P_13_16 + P_14_5 + P_14_6 + 2'P_14_7 + 2'P_14_8 + 3'P_14_9 + 3'P_14_10 + 3'P_14_11 + 2'P_14_12 + 2'P_14_13 + P_14_14 + P_14_15 + P_15_6 + P_15_7 + 2'P_15_8 + 2'P_15_9 + 3'P_15_10 + 2'P_15_11 + 2'P_15_12 + P_15_13 + P_15_14 + P_16_7 + P_16_8 + 2'P_16_9 + 2'P_16_10 + 2'P_16_11 + P_16_12 + P_16_13 + P_17_8 + P_17_9 + 2'P_17_10 + P_17_11 + P_17_12 + P_18_9 + P_18_10 + P_18_11 + P_19_10 + -1'cX_12 + -2'cX_13 + -3'cX_14 + -4'cX_15 + -5'cX_16 + -6'cX_17 + -7'cX_18 + -8'cX_19 + -1'cY_11 + -2'cY_12 + -3'cY_13 + -4'cY_14 + -5'cY_15 + -6'cY_16 + -7'cY_17 + -8'cY_18 + -9'cY_19 + 5'L_0 + 5'L_1 + 4'L_2 + 4'L_3 + 3'L_4 + 3'L_5 + 2'L_6 + 2'L_7 + L_8 + L_9 + L_31 + L_32 + 2'L_33 + 2'L_34 + 3'L_35 + 3'L_36 + 4'L_37 + 4'L_38 + R_14 + R_15 + 2'R_16 + 2'R_17 + 3'R_18 + 3'R_19 + 4'R_20 + 4'R_21 + 5'R_22 + 5'R_23 + 6'R_24 + 6'R_25 + 7'R_26 + 7'R_27 + 8'R_28 + 8'R_29 + 9'R_30 + 9'R_31 + 10'R_32 + 11'R_33 + 12'R_34 + 13'R_35 + 14'R_36 + 15'R_37 + 16'R_38 + 17'R_39 = 167
invariant :P_1_13 + -1'P_3_12 + -1'P_3_13 + -1'P_3_14 + -1'P_4_11 + -2'P_4_12 + -2'P_4_13 + -2'P_4_14 + -1'P_4_15 + -1'P_5_10 + -2'P_5_11 + -3'P_5_12 + -3'P_5_13 + -3'P_5_14 + -2'P_5_15 + -1'P_5_16 + -1'P_6_9 + -2'P_6_10 + -3'P_6_11 + -4'P_6_12 + -4'P_6_13 + -4'P_6_14 + -3'P_6_15 + -2'P_6_16 + -1'P_6_17 + -1'P_7_8 + -2'P_7_9 + -3'P_7_10 + -4'P_7_11 + -5'P_7_12 + -5'P_7_13 + -5'P_7_14 + -4'P_7_15 + -3'P_7_16 + -2'P_7_17 + -1'P_7_18 + -1'P_8_7 + -2'P_8_8 + -3'P_8_9 + -4'P_8_10 + -5'P_8_11 + -6'P_8_12 + -6'P_8_13 + -6'P_8_14 + -5'P_8_15 + -4'P_8_16 + -3'P_8_17 + -2'P_8_18 + -1'P_9_6 + -2'P_9_7 + -3'P_9_8 + -4'P_9_9 + -5'P_9_10 + -6'P_9_11 + -7'P_9_12 + -7'P_9_13 + -7'P_9_14 + -6'P_9_15 + -5'P_9_16 + -4'P_9_17 + -2'P_9_18 + -1'P_10_5 + -2'P_10_6 + -3'P_10_7 + -4'P_10_8 + -5'P_10_9 + -6'P_10_10 + -7'P_10_11 + -8'P_10_12 + -8'P_10_13 + -8'P_10_14 + -7'P_10_15 + -6'P_10_16 + -4'P_10_17 + -2'P_10_18 + -1'P_11_4 + -2'P_11_5 + -3'P_11_6 + -4'P_11_7 + -5'P_11_8 + -6'P_11_9 + -7'P_11_10 + -8'P_11_11 + -9'P_11_12 + -9'P_11_13 + -9'P_11_14 + -8'P_11_15 + -6'P_11_16 + -4'P_11_17 + -2'P_11_18 + -1'P_12_3 + -2'P_12_4 + -3'P_12_5 + -4'P_12_6 + -5'P_12_7 + -6'P_12_8 + -7'P_12_9 + -8'P_12_10 + -9'P_12_11 + -10'P_12_12 + -10'P_12_13 + -10'P_12_14 + -8'P_12_15 + -6'P_12_16 + -4'P_12_17 + -2'P_12_18 + -1'P_13_2 + -2'P_13_3 + -3'P_13_4 + -4'P_13_5 + -5'P_13_6 + -6'P_13_7 + -7'P_13_8 + -8'P_13_9 + -9'P_13_10 + -10'P_13_11 + -11'P_13_12 + -11'P_13_13 + -10'P_13_14 + -8'P_13_15 + -6'P_13_16 + -4'P_13_17 + -2'P_13_18 + -1'P_14_2 + -2'P_14_3 + -3'P_14_4 + -4'P_14_5 + -5'P_14_6 + -6'P_14_7 + -7'P_14_8 + -8'P_14_9 + -9'P_14_10 + -10'P_14_11 + -11'P_14_12 + -10'P_14_13 + -9'P_14_14 + -7'P_14_15 + -5'P_14_16 + -3'P_14_17 + -1'P_14_18 + -1'P_15_3 + -2'P_15_4 + -3'P_15_5 + -4'P_15_6 + -5'P_15_7 + -6'P_15_8 + -7'P_15_9 + -8'P_15_10 + -9'P_15_11 + -9'P_15_12 + -8'P_15_13 + -7'P_15_14 + -5'P_15_15 + -3'P_15_16 + -1'P_15_17 + -1'P_16_4 + -2'P_16_5 + -3'P_16_6 + -4'P_16_7 + -5'P_16_8 + -6'P_16_9 + -7'P_16_10 + -7'P_16_11 + -7'P_16_12 + -6'P_16_13 + -5'P_16_14 + -3'P_16_15 + -1'P_16_16 + -1'P_17_5 + -2'P_17_6 + -3'P_17_7 + -4'P_17_8 + -5'P_17_9 + -5'P_17_10 + -5'P_17_11 + -5'P_17_12 + -4'P_17_13 + -3'P_17_14 + -1'P_17_15 + -1'P_18_6 + -2'P_18_7 + -3'P_18_8 + -3'P_18_9 + -3'P_18_10 + -3'P_18_11 + -3'P_18_12 + -2'P_18_13 + -1'P_18_14 + -1'P_19_7 + -1'P_19_8 + -1'P_19_9 + -1'P_19_10 + -1'P_19_11 + -1'P_19_12 + cX_14 + 3'cX_15 + 5'cX_16 + 7'cX_17 + 9'cX_18 + 11'cX_19 + cY_13 + 2'cY_14 + 4'cY_15 + 6'cY_16 + 8'cY_17 + 10'cY_18 + 12'cY_19 + -7'L_0 + -6'L_1 + -5'L_2 + -4'L_3 + -3'L_4 + -2'L_5 + -1'L_6 + -1'L_33 + -2'L_34 + -3'L_35 + -4'L_36 + -5'L_37 + -6'L_38 + -1'R_16 + -2'R_17 + -3'R_18 + -4'R_19 + -5'R_20 + -6'R_21 + -7'R_22 + -8'R_23 + -9'R_24 + -10'R_25 + -11'R_26 + -12'R_27 + -12'R_28 + -12'R_29 + -12'R_30 + -12'R_31 + -12'R_32 + -12'R_33 + -13'R_34 + -15'R_35 + -17'R_36 + -19'R_37 + -21'R_38 + -23'R_39 = -228
invariant :P_0_14 + P_3_14 + P_4_13 + P_4_14 + P_4_15 + P_5_12 + P_5_13 + 2'P_5_14 + P_5_15 + P_5_16 + P_6_11 + P_6_12 + 2'P_6_13 + 2'P_6_14 + 2'P_6_15 + P_6_16 + P_6_17 + P_7_10 + P_7_11 + 2'P_7_12 + 2'P_7_13 + 3'P_7_14 + 2'P_7_15 + 2'P_7_16 + P_7_17 + P_7_18 + P_8_9 + P_8_10 + 2'P_8_11 + 2'P_8_12 + 3'P_8_13 + 3'P_8_14 + 3'P_8_15 + 2'P_8_16 + 2'P_8_17 + P_8_18 + P_9_8 + P_9_9 + 2'P_9_10 + 2'P_9_11 + 3'P_9_12 + 3'P_9_13 + 4'P_9_14 + 3'P_9_15 + 3'P_9_16 + 2'P_9_17 + P_9_18 + P_10_7 + P_10_8 + 2'P_10_9 + 2'P_10_10 + 3'P_10_11 + 3'P_10_12 + 4'P_10_13 + 4'P_10_14 + 4'P_10_15 + 3'P_10_16 + 2'P_10_17 + P_10_18 + P_11_6 + P_11_7 + 2'P_11_8 + 2'P_11_9 + 3'P_11_10 + 3'P_11_11 + 4'P_11_12 + 4'P_11_13 + 5'P_11_14 + 4'P_11_15 + 3'P_11_16 + 2'P_11_17 + P_11_18 + P_12_5 + P_12_6 + 2'P_12_7 + 2'P_12_8 + 3'P_12_9 + 3'P_12_10 + 4'P_12_11 + 4'P_12_12 + 5'P_12_13 + 5'P_12_14 + 4'P_12_15 + 3'P_12_16 + 2'P_12_17 + P_12_18 + P_13_4 + P_13_5 + 2'P_13_6 + 2'P_13_7 + 3'P_13_8 + 3'P_13_9 + 4'P_13_10 + 4'P_13_11 + 5'P_13_12 + 5'P_13_13 + 5'P_13_14 + 4'P_13_15 + 3'P_13_16 + 2'P_13_17 + P_13_18 + P_14_3 + P_14_4 + 2'P_14_5 + 2'P_14_6 + 3'P_14_7 + 3'P_14_8 + 4'P_14_9 + 4'P_14_10 + 5'P_14_11 + 5'P_14_12 + 5'P_14_13 + 5'P_14_14 + 4'P_14_15 + 3'P_14_16 + 2'P_14_17 + P_14_18 + P_15_2 + P_15_3 + 2'P_15_4 + 2'P_15_5 + 3'P_15_6 + 3'P_15_7 + 4'P_15_8 + 4'P_15_9 + 5'P_15_10 + 5'P_15_11 + 5'P_15_12 + 5'P_15_13 + 5'P_15_14 + 4'P_15_15 + 3'P_15_16 + 2'P_15_17 + P_15_18 + P_16_3 + P_16_4 + 2'P_16_5 + 2'P_16_6 + 3'P_16_7 + 3'P_16_8 + 4'P_16_9 + 4'P_16_10 + 4'P_16_11 + 4'P_16_12 + 4'P_16_13 + 4'P_16_14 + 3'P_16_15 + 2'P_16_16 + P_16_17 + P_17_4 + P_17_5 + 2'P_17_6 + 2'P_17_7 + 3'P_17_8 + 3'P_17_9 + 3'P_17_10 + 3'P_17_11 + 3'P_17_12 + 3'P_17_13 + 3'P_17_14 + 2'P_17_15 + P_17_16 + P_18_5 + P_18_6 + 2'P_18_7 + 2'P_18_8 + 2'P_18_9 + 2'P_18_10 + 2'P_18_11 + 2'P_18_12 + 2'P_18_13 + 2'P_18_14 + P_18_15 + P_19_6 + P_19_7 + P_19_8 + P_19_9 + P_19_10 + P_19_11 + P_19_12 + P_19_13 + P_19_14 + -1'cX_16 + -2'cX_17 + -3'cX_18 + -4'cX_19 + -1'cY_15 + -2'cY_16 + -3'cY_17 + -4'cY_18 + -5'cY_19 + 3'L_0 + 3'L_1 + 2'L_2 + 2'L_3 + L_4 + L_5 + L_35 + L_36 + 2'L_37 + 2'L_38 + R_18 + R_19 + 2'R_20 + 2'R_21 + 3'R_22 + 3'R_23 + 4'R_24 + 4'R_25 + 5'R_26 + 5'R_27 + 5'R_28 + 5'R_29 + 5'R_30 + 5'R_31 + 5'R_32 + 5'R_33 + 5'R_34 + 5'R_35 + 6'R_36 + 7'R_37 + 8'R_38 + 9'R_39 = 93
invariant :P_2_0 + -1'P_3_2 + -1'P_3_3 + -1'P_3_4 + -1'P_3_5 + -1'P_3_6 + -1'P_3_7 + -1'P_3_8 + -1'P_3_9 + -1'P_3_10 + -1'P_3_11 + -1'P_3_12 + -1'P_3_13 + -1'P_3_14 + -1'P_3_15 + -1'P_3_16 + -1'P_3_17 + -1'P_3_18 + -1'P_4_3 + -1'P_4_4 + -1'P_4_5 + -1'P_4_6 + -1'P_4_7 + -1'P_4_8 + -1'P_4_9 + -1'P_4_10 + -1'P_4_11 + -1'P_4_12 + -1'P_4_13 + -1'P_4_14 + -1'P_4_15 + -1'P_4_16 + -1'P_4_17 + -1'P_5_4 + -1'P_5_5 + -1'P_5_6 + -1'P_5_7 + -1'P_5_8 + -1'P_5_9 + -1'P_5_10 + -1'P_5_11 + -1'P_5_12 + -1'P_5_13 + -1'P_5_14 + -1'P_5_15 + -1'P_5_16 + -1'P_6_5 + -1'P_6_6 + -1'P_6_7 + -1'P_6_8 + -1'P_6_9 + -1'P_6_10 + -1'P_6_11 + -1'P_6_12 + -1'P_6_13 + -1'P_6_14 + -1'P_6_15 + -1'P_7_6 + -1'P_7_7 + -1'P_7_8 + -1'P_7_9 + -1'P_7_10 + -1'P_7_11 + -1'P_7_12 + -1'P_7_13 + -1'P_7_14 + -1'P_8_7 + -1'P_8_8 + -1'P_8_9 + -1'P_8_10 + -1'P_8_11 + -1'P_8_12 + -1'P_8_13 + -1'P_9_8 + -1'P_9_9 + -1'P_9_10 + -1'P_9_11 + -1'P_9_12 + -1'P_10_9 + -1'P_10_10 + -1'P_10_11 + -1'P_11_10 + P_12_10 + P_13_9 + P_13_10 + P_13_11 + P_14_8 + P_14_9 + P_14_10 + P_14_11 + P_14_12 + P_15_7 + P_15_8 + P_15_9 + P_15_10 + P_15_11 + P_15_12 + P_15_13 + P_16_6 + P_16_7 + P_16_8 + P_16_9 + P_16_10 + P_16_11 + P_16_12 + P_16_13 + P_16_14 + P_17_5 + P_17_6 + P_17_7 + P_17_8 + P_17_9 + P_17_10 + P_17_11 + P_17_12 + P_17_13 + P_17_14 + P_17_15 + P_18_4 + P_18_5 + P_18_6 + P_18_7 + P_18_8 + P_18_9 + P_18_10 + P_18_11 + P_18_12 + P_18_13 + P_18_14 + P_18_15 + P_18_16 + P_19_3 + P_19_4 + P_19_5 + P_19_6 + P_19_7 + P_19_8 + P_19_9 + P_19_10 + P_19_11 + P_19_12 + P_19_13 + P_19_14 + P_19_15 + P_19_16 + P_19_17 + -1'cX_3 + -1'cX_4 + -1'cX_5 + -1'cX_6 + -1'cX_7 + -1'cX_8 + -1'cX_9 + -1'cX_10 + -1'cX_11 + -1'cX_12 + -1'cX_13 + -1'cX_14 + -1'cX_15 + -1'cX_16 + -1'cX_17 + -1'cX_18 + -1'cX_19 + L_21 + L_22 + L_23 + L_24 + L_25 + L_26 + L_27 + L_28 + L_29 + L_30 + L_31 + L_32 + L_33 + L_34 + L_35 + L_36 + L_37 + L_38 + R_23 + R_24 + R_25 + R_26 + R_27 + R_28 + R_29 + R_30 + R_31 + R_32 + R_33 + R_34 + R_35 + R_36 + R_37 + R_38 + R_39 = 18
invariant :P_1_2 + P_3_4 + P_3_5 + P_3_6 + P_3_7 + P_3_8 + P_3_9 + P_3_10 + P_3_11 + P_3_12 + P_3_13 + P_3_14 + P_3_15 + P_3_16 + P_3_17 + P_3_18 + P_4_2 + P_4_3 + 2'P_4_4 + 3'P_4_5 + 3'P_4_6 + 3'P_4_7 + 3'P_4_8 + 3'P_4_9 + 3'P_4_10 + 3'P_4_11 + 3'P_4_12 + 3'P_4_13 + 3'P_4_14 + 3'P_4_15 + 3'P_4_16 + 3'P_4_17 + 2'P_4_18 + P_5_2 + 2'P_5_3 + 3'P_5_4 + 4'P_5_5 + 5'P_5_6 + 5'P_5_7 + 5'P_5_8 + 5'P_5_9 + 5'P_5_10 + 5'P_5_11 + 5'P_5_12 + 5'P_5_13 + 5'P_5_14 + 5'P_5_15 + 5'P_5_16 + 4'P_5_17 + 2'P_5_18 + P_6_2 + 2'P_6_3 + 4'P_6_4 + 5'P_6_5 + 6'P_6_6 + 7'P_6_7 + 7'P_6_8 + 7'P_6_9 + 7'P_6_10 + 7'P_6_11 + 7'P_6_12 + 7'P_6_13 + 7'P_6_14 + 7'P_6_15 + 6'P_6_16 + 4'P_6_17 + 2'P_6_18 + P_7_2 + 2'P_7_3 + 4'P_7_4 + 6'P_7_5 + 7'P_7_6 + 8'P_7_7 + 9'P_7_8 + 9'P_7_9 + 9'P_7_10 + 9'P_7_11 + 9'P_7_12 + 9'P_7_13 + 9'P_7_14 + 8'P_7_15 + 6'P_7_16 + 4'P_7_17 + 2'P_7_18 + P_8_2 + 2'P_8_3 + 4'P_8_4 + 6'P_8_5 + 8'P_8_6 + 9'P_8_7 + 10'P_8_8 + 11'P_8_9 + 11'P_8_10 + 11'P_8_11 + 11'P_8_12 + 11'P_8_13 + 10'P_8_14 + 8'P_8_15 + 6'P_8_16 + 4'P_8_17 + 2'P_8_18 + P_9_2 + 2'P_9_3 + 4'P_9_4 + 6'P_9_5 + 8'P_9_6 + 10'P_9_7 + 11'P_9_8 + 12'P_9_9 + 13'P_9_10 + 13'P_9_11 + 13'P_9_12 + 12'P_9_13 + 10'P_9_14 + 8'P_9_15 + 6'P_9_16 + 4'P_9_17 + 2'P_9_18 + P_10_2 + 2'P_10_3 + 4'P_10_4 + 6'P_10_5 + 8'P_10_6 + 10'P_10_7 + 12'P_10_8 + 13'P_10_9 + 14'P_10_10 + 15'P_10_11 + 14'P_10_12 + 12'P_10_13 + 10'P_10_14 + 8'P_10_15 + 6'P_10_16 + 4'P_10_17 + 2'P_10_18 + P_11_2 + 2'P_11_3 + 4'P_11_4 + 6'P_11_5 + 8'P_11_6 + 10'P_11_7 + 12'P_11_8 + 14'P_11_9 + 15'P_11_10 + 15'P_11_11 + 14'P_11_12 + 12'P_11_13 + 10'P_11_14 + 8'P_11_15 + 6'P_11_16 + 4'P_11_17 + 2'P_11_18 + P_12_2 + 2'P_12_3 + 4'P_12_4 + 6'P_12_5 + 8'P_12_6 + 10'P_12_7 + 12'P_12_8 + 14'P_12_9 + 15'P_12_10 + 14'P_12_11 + 13'P_12_12 + 12'P_12_13 + 10'P_12_14 + 8'P_12_15 + 6'P_12_16 + 4'P_12_17 + 2'P_12_18 + P_13_2 + 2'P_13_3 + 4'P_13_4 + 6'P_13_5 + 8'P_13_6 + 10'P_13_7 + 12'P_13_8 + 13'P_13_9 + 13'P_13_10 + 13'P_13_11 + 12'P_13_12 + 11'P_13_13 + 10'P_13_14 + 8'P_13_15 + 6'P_13_16 + 4'P_13_17 + 2'P_13_18 + P_14_2 + 2'P_14_3 + 4'P_14_4 + 6'P_14_5 + 8'P_14_6 + 10'P_14_7 + 11'P_14_8 + 11'P_14_9 + 11'P_14_10 + 11'P_14_11 + 11'P_14_12 + 10'P_14_13 + 9'P_14_14 + 8'P_14_15 + 6'P_14_16 + 4'P_14_17 + 2'P_14_18 + P_15_2 + 2'P_15_3 + 4'P_15_4 + 6'P_15_5 + 8'P_15_6 + 9'P_15_7 + 9'P_15_8 + 9'P_15_9 + 9'P_15_10 + 9'P_15_11 + 9'P_15_12 + 9'P_15_13 + 8'P_15_14 + 7'P_15_15 + 6'P_15_16 + 4'P_15_17 + 2'P_15_18 + P_16_2 + 2'P_16_3 + 4'P_16_4 + 6'P_16_5 + 7'P_16_6 + 7'P_16_7 + 7'P_16_8 + 7'P_16_9 + 7'P_16_10 + 7'P_16_11 + 7'P_16_12 + 7'P_16_13 + 7'P_16_14 + 6'P_16_15 + 5'P_16_16 + 4'P_16_17 + 2'P_16_18 + P_17_2 + 2'P_17_3 + 4'P_17_4 + 5'P_17_5 + 5'P_17_6 + 5'P_17_7 + 5'P_17_8 + 5'P_17_9 + 5'P_17_10 + 5'P_17_11 + 5'P_17_12 + 5'P_17_13 + 5'P_17_14 + 5'P_17_15 + 4'P_17_16 + 3'P_17_17 + 2'P_17_18 + P_18_2 + 2'P_18_3 + 3'P_18_4 + 3'P_18_5 + 3'P_18_6 + 3'P_18_7 + 3'P_18_8 + 3'P_18_9 + 3'P_18_10 + 3'P_18_11 + 3'P_18_12 + 3'P_18_13 + 3'P_18_14 + 3'P_18_15 + 3'P_18_16 + 2'P_18_17 + P_18_18 + P_19_2 + P_19_3 + P_19_4 + P_19_5 + P_19_6 + P_19_7 + P_19_8 + P_19_9 + P_19_10 + P_19_11 + P_19_12 + P_19_13 + P_19_14 + P_19_15 + P_19_16 + P_19_17 + cX_3 + 3'cX_4 + 5'cX_5 + 7'cX_6 + 9'cX_7 + 11'cX_8 + 13'cX_9 + 15'cX_10 + 17'cX_11 + 19'cX_12 + 21'cX_13 + 23'cX_14 + 25'cX_15 + 27'cX_16 + 29'cX_17 + 31'cX_18 + 33'cX_19 + cY_2 + 2'cY_3 + 4'cY_4 + 6'cY_5 + 8'cY_6 + 10'cY_7 + 12'cY_8 + 14'cY_9 + 16'cY_10 + 18'cY_11 + 20'cY_12 + 22'cY_13 + 24'cY_14 + 26'cY_15 + 28'cY_16 + 30'cY_17 + 32'cY_18 + 34'cY_19 + -18'L_0 + -17'L_1 + -16'L_2 + -15'L_3 + -14'L_4 + -13'L_5 + -12'L_6 + -11'L_7 + -10'L_8 + -9'L_9 + -8'L_10 + -7'L_11 + -6'L_12 + -5'L_13 + -4'L_14 + -3'L_15 + -2'L_16 + -1'L_17 + -1'L_22 + -2'L_23 + -3'L_24 + -4'L_25 + -5'L_26 + -6'L_27 + -7'L_28 + -8'L_29 + -9'L_30 + -10'L_31 + -11'L_32 + -12'L_33 + -13'L_34 + -14'L_35 + -15'L_36 + -16'L_37 + -17'L_38 + -1'R_5 + -2'R_6 + -3'R_7 + -4'R_8 + -5'R_9 + -6'R_10 + -7'R_11 + -8'R_12 + -9'R_13 + -10'R_14 + -11'R_15 + -12'R_16 + -13'R_17 + -14'R_18 + -15'R_19 + -16'R_20 + -17'R_21 + -18'R_22 + -20'R_23 + -23'R_24 + -26'R_25 + -29'R_26 + -32'R_27 + -35'R_28 + -38'R_29 + -41'R_30 + -44'R_31 + -47'R_32 + -50'R_33 + -53'R_34 + -56'R_35 + -59'R_36 + -62'R_37 + -65'R_38 + -67'R_39 = -646
invariant :P_4_0 + -1'P_5_2 + -1'P_5_3 + -1'P_5_4 + -1'P_5_5 + -1'P_5_6 + -1'P_5_7 + -1'P_5_8 + -1'P_5_9 + -1'P_5_10 + -1'P_5_11 + -1'P_5_12 + -1'P_5_13 + -1'P_5_14 + -1'P_5_15 + -1'P_5_16 + -1'P_5_17 + -1'P_5_18 + -1'P_6_3 + -1'P_6_4 + -1'P_6_5 + -1'P_6_6 + -1'P_6_7 + -1'P_6_8 + -1'P_6_9 + -1'P_6_10 + -1'P_6_11 + -1'P_6_12 + -1'P_6_13 + -1'P_6_14 + -1'P_6_15 + -1'P_6_16 + -1'P_6_17 + -1'P_7_4 + -1'P_7_5 + -1'P_7_6 + -1'P_7_7 + -1'P_7_8 + -1'P_7_9 + -1'P_7_10 + -1'P_7_11 + -1'P_7_12 + -1'P_7_13 + -1'P_7_14 + -1'P_7_15 + -1'P_7_16 + -1'P_8_5 + -1'P_8_6 + -1'P_8_7 + -1'P_8_8 + -1'P_8_9 + -1'P_8_10 + -1'P_8_11 + -1'P_8_12 + -1'P_8_13 + -1'P_8_14 + -1'P_8_15 + -1'P_9_6 + -1'P_9_7 + -1'P_9_8 + -1'P_9_9 + -1'P_9_10 + -1'P_9_11 + -1'P_9_12 + -1'P_9_13 + -1'P_9_14 + -1'P_10_7 + -1'P_10_8 + -1'P_10_9 + -1'P_10_10 + -1'P_10_11 + -1'P_10_12 + -1'P_10_13 + -1'P_11_8 + -1'P_11_9 + -1'P_11_10 + -1'P_11_11 + -1'P_11_12 + -1'P_12_9 + -1'P_12_10 + -1'P_12_11 + -1'P_13_10 + P_14_10 + P_15_9 + P_15_10 + P_15_11 + P_16_8 + P_16_9 + P_16_10 + P_16_11 + P_16_12 + P_17_7 + P_17_8 + P_17_9 + P_17_10 + P_17_11 + P_17_12 + P_17_13 + P_18_6 + P_18_7 + P_18_8 + P_18_9 + P_18_10 + P_18_11 + P_18_12 + P_18_13 + P_18_14 + P_19_5 + P_19_6 + P_19_7 + P_19_8 + P_19_9 + P_19_10 + P_19_11 + P_19_12 + P_19_13 + P_19_14 + P_19_15 + -1'cX_5 + -1'cX_6 + -1'cX_7 + -1'cX_8 + -1'cX_9 + -1'cX_10 + -1'cX_11 + -1'cX_12 + -1'cX_13 + -1'cX_14 + -1'cX_15 + -1'cX_16 + -1'cX_17 + -1'cX_18 + -1'cX_19 + L_23 + L_24 + L_25 + L_26 + L_27 + L_28 + L_29 + L_30 + L_31 + L_32 + L_33 + L_34 + L_35 + L_36 + L_37 + L_38 + R_25 + R_26 + R_27 + R_28 + R_29 + R_30 + R_31 + R_32 + R_33 + R_34 + R_35 + R_36 + R_37 + R_38 + R_39 = 16
invariant :P_8_1 + P_8_2 + P_8_3 + P_8_4 + P_8_5 + P_8_6 + P_8_7 + P_8_8 + P_8_9 + P_8_10 + P_8_11 + P_8_12 + P_8_13 + P_8_14 + P_8_15 + P_8_16 + P_8_17 + P_8_18 + P_9_2 + P_9_3 + P_9_4 + P_9_5 + P_9_6 + P_9_7 + P_9_8 + P_9_9 + P_9_10 + P_9_11 + P_9_12 + P_9_13 + P_9_14 + P_9_15 + P_9_16 + P_9_17 + P_10_3 + P_10_4 + P_10_5 + P_10_6 + P_10_7 + P_10_8 + P_10_9 + P_10_10 + P_10_11 + P_10_12 + P_10_13 + P_10_14 + P_10_15 + P_10_16 + P_11_4 + P_11_5 + P_11_6 + P_11_7 + P_11_8 + P_11_9 + P_11_10 + P_11_11 + P_11_12 + P_11_13 + P_11_14 + P_11_15 + P_12_5 + P_12_6 + P_12_7 + P_12_8 + P_12_9 + P_12_10 + P_12_11 + P_12_12 + P_12_13 + P_12_14 + P_13_6 + P_13_7 + P_13_8 + P_13_9 + P_13_10 + P_13_11 + P_13_12 + P_13_13 + P_14_7 + P_14_8 + P_14_9 + P_14_10 + P_14_11 + P_14_12 + P_15_8 + P_15_9 + P_15_10 + P_15_11 + P_16_9 + P_16_10 + -1'P_18_9 + -1'P_18_10 + -1'P_19_8 + -1'P_19_9 + -1'P_19_10 + -1'P_19_11 + cX_8 + cX_9 + cX_10 + cX_11 + cX_12 + cX_13 + cX_14 + cX_15 + cX_16 + cX_17 + cX_18 + cX_19 + -1'L_27 + -1'L_28 + -1'L_29 + -1'L_30 + -1'L_31 + -1'L_32 + -1'L_33 + -1'L_34 + -1'L_35 + -1'L_36 + -1'L_37 + -1'L_38 + -1'R_28 + -1'R_29 + -1'R_30 + -1'R_31 + -1'R_32 + -1'R_33 + -1'R_34 + -1'R_35 + -1'R_36 + -1'R_37 + -1'R_38 + -1'R_39 = -12
invariant :P_2_7 + P_3_6 + P_3_7 + P_3_8 + P_4_5 + P_4_6 + 2'P_4_7 + P_4_8 + P_4_9 + P_5_4 + P_5_5 + 2'P_5_6 + 2'P_5_7 + 2'P_5_8 + P_5_9 + P_5_10 + P_6_3 + P_6_4 + 2'P_6_5 + 2'P_6_6 + 3'P_6_7 + 2'P_6_8 + 2'P_6_9 + P_6_10 + P_6_11 + P_7_2 + P_7_3 + 2'P_7_4 + 2'P_7_5 + 3'P_7_6 + 3'P_7_7 + 3'P_7_8 + 2'P_7_9 + 2'P_7_10 + P_7_11 + P_7_12 + P_8_3 + P_8_4 + 2'P_8_5 + 2'P_8_6 + 3'P_8_7 + 2'P_8_8 + 2'P_8_9 + P_8_10 + P_8_11 + -1'P_8_14 + -1'P_8_15 + -1'P_8_16 + -1'P_8_17 + -1'P_8_18 + P_9_4 + P_9_5 + 2'P_9_6 + 2'P_9_7 + 2'P_9_8 + P_9_9 + P_9_10 + -1'P_9_13 + -1'P_9_14 + -2'P_9_15 + -2'P_9_16 + -2'P_9_17 + -1'P_9_18 + P_10_5 + P_10_6 + 2'P_10_7 + P_10_8 + P_10_9 + -1'P_10_12 + -1'P_10_13 + -2'P_10_14 + -2'P_10_15 + -3'P_10_16 + -2'P_10_17 + -1'P_10_18 + P_11_6 + P_11_7 + P_11_8 + -1'P_11_11 + -1'P_11_12 + -2'P_11_13 + -2'P_11_14 + -3'P_11_15 + -2'P_11_16 + -2'P_11_17 + -1'P_11_18 + P_12_7 + -1'P_12_10 + -1'P_12_11 + -2'P_12_12 + -2'P_12_13 + -3'P_12_14 + -2'P_12_15 + -2'P_12_16 + -1'P_12_17 + -1'P_12_18 + -1'P_13_9 + -1'P_13_10 + -2'P_13_11 + -2'P_13_12 + -3'P_13_13 + -2'P_13_14 + -2'P_13_15 + -1'P_13_16 + -1'P_13_17 + -1'P_14_8 + -1'P_14_9 + -2'P_14_10 + -2'P_14_11 + -3'P_14_12 + -2'P_14_13 + -2'P_14_14 + -1'P_14_15 + -1'P_14_16 + -1'P_15_8 + -2'P_15_9 + -2'P_15_10 + -3'P_15_11 + -2'P_15_12 + -2'P_15_13 + -1'P_15_14 + -1'P_15_15 + -1'P_16_8 + -2'P_16_9 + -3'P_16_10 + -2'P_16_11 + -2'P_16_12 + -1'P_16_13 + -1'P_16_14 + -1'P_17_8 + -2'P_17_9 + -2'P_17_10 + -2'P_17_11 + -1'P_17_12 + -1'P_17_13 + -1'P_18_8 + -1'P_18_9 + -1'P_18_10 + -1'P_18_11 + -1'P_18_12 + -1'cX_8 + -2'cX_9 + -3'cX_10 + -4'cX_11 + -5'cX_12 + -6'cX_13 + -7'cX_14 + -8'cX_15 + -9'cX_16 + -10'cX_17 + -11'cX_18 + -12'cX_19 + -1'cY_8 + -2'cY_9 + -3'cY_10 + -4'cY_11 + -5'cY_12 + -6'cY_13 + -7'cY_14 + -8'cY_15 + -9'cY_16 + -10'cY_17 + -11'cY_18 + -12'cY_19 + 6'L_0 + 6'L_1 + 5'L_2 + 5'L_3 + 4'L_4 + 4'L_5 + 3'L_6 + 3'L_7 + 2'L_8 + 2'L_9 + L_10 + L_11 + L_27 + L_28 + 2'L_29 + 2'L_30 + 3'L_31 + 3'L_32 + 4'L_33 + 4'L_34 + 5'L_35 + 5'L_36 + 6'L_37 + 6'L_38 + R_10 + R_11 + 2'R_12 + 2'R_13 + 3'R_14 + 3'R_15 + 4'R_16 + 4'R_17 + 5'R_18 + 5'R_19 + 6'R_20 + 6'R_21 + 7'R_22 + 7'R_23 + 8'R_24 + 8'R_25 + 9'R_26 + 9'R_27 + 11'R_28 + 12'R_29 + 14'R_30 + 15'R_31 + 17'R_32 + 18'R_33 + 19'R_34 + 20'R_35 + 21'R_36 + 22'R_37 + 23'R_38 + 24'R_39 = 234
invariant :P_18_19 + P_19_18 + R_38 = 1
invariant :P_18_0 + -1'P_19_2 + -1'P_19_3 + -1'P_19_4 + -1'P_19_5 + -1'P_19_6 + -1'P_19_7 + -1'P_19_8 + -1'P_19_9 + -1'P_19_10 + -1'P_19_11 + -1'P_19_12 + -1'P_19_13 + -1'P_19_14 + -1'P_19_15 + -1'P_19_16 + -1'P_19_17 + -1'P_19_18 + -1'cX_19 + L_37 + L_38 + R_39 = 2
invariant :P_4_1 + P_4_2 + P_4_3 + P_4_4 + P_4_5 + P_4_6 + P_4_7 + P_4_8 + P_4_9 + P_4_10 + P_4_11 + P_4_12 + P_4_13 + P_4_14 + P_4_15 + P_4_16 + P_4_17 + P_4_18 + P_5_2 + P_5_3 + P_5_4 + P_5_5 + P_5_6 + P_5_7 + P_5_8 + P_5_9 + P_5_10 + P_5_11 + P_5_12 + P_5_13 + P_5_14 + P_5_15 + P_5_16 + P_5_17 + P_6_3 + P_6_4 + P_6_5 + P_6_6 + P_6_7 + P_6_8 + P_6_9 + P_6_10 + P_6_11 + P_6_12 + P_6_13 + P_6_14 + P_6_15 + P_6_16 + P_7_4 + P_7_5 + P_7_6 + P_7_7 + P_7_8 + P_7_9 + P_7_10 + P_7_11 + P_7_12 + P_7_13 + P_7_14 + P_7_15 + P_8_5 + P_8_6 + P_8_7 + P_8_8 + P_8_9 + P_8_10 + P_8_11 + P_8_12 + P_8_13 + P_8_14 + P_9_6 + P_9_7 + P_9_8 + P_9_9 + P_9_10 + P_9_11 + P_9_12 + P_9_13 + P_10_7 + P_10_8 + P_10_9 + P_10_10 + P_10_11 + P_10_12 + P_11_8 + P_11_9 + P_11_10 + P_11_11 + P_12_9 + P_12_10 + -1'P_14_9 + -1'P_14_10 + -1'P_15_8 + -1'P_15_9 + -1'P_15_10 + -1'P_15_11 + -1'P_16_7 + -1'P_16_8 + -1'P_16_9 + -1'P_16_10 + -1'P_16_11 + -1'P_16_12 + -1'P_17_6 + -1'P_17_7 + -1'P_17_8 + -1'P_17_9 + -1'P_17_10 + -1'P_17_11 + -1'P_17_12 + -1'P_17_13 + -1'P_18_5 + -1'P_18_6 + -1'P_18_7 + -1'P_18_8 + -1'P_18_9 + -1'P_18_10 + -1'P_18_11 + -1'P_18_12 + -1'P_18_13 + -1'P_18_14 + -1'P_19_4 + -1'P_19_5 + -1'P_19_6 + -1'P_19_7 + -1'P_19_8 + -1'P_19_9 + -1'P_19_10 + -1'P_19_11 + -1'P_19_12 + -1'P_19_13 + -1'P_19_14 + -1'P_19_15 + cX_4 + cX_5 + cX_6 + cX_7 + cX_8 + cX_9 + cX_10 + cX_11 + cX_12 + cX_13 + cX_14 + cX_15 + cX_16 + cX_17 + cX_18 + cX_19 + -1'L_23 + -1'L_24 + -1'L_25 + -1'L_26 + -1'L_27 + -1'L_28 + -1'L_29 + -1'L_30 + -1'L_31 + -1'L_32 + -1'L_33 + -1'L_34 + -1'L_35 + -1'L_36 + -1'L_37 + -1'L_38 + -1'R_24 + -1'R_25 + -1'R_26 + -1'R_27 + -1'R_28 + -1'R_29 + -1'R_30 + -1'R_31 + -1'R_32 + -1'R_33 + -1'R_34 + -1'R_35 + -1'R_36 + -1'R_37 + -1'R_38 + -1'R_39 = -16
invariant :P_0_2 + P_3_2 + -1'P_4_4 + -1'P_4_5 + -1'P_4_6 + -1'P_4_7 + -1'P_4_8 + -1'P_4_9 + -1'P_4_10 + -1'P_4_11 + -1'P_4_12 + -1'P_4_13 + -1'P_4_14 + -1'P_4_15 + -1'P_4_16 + -1'P_4_17 + -1'P_4_18 + -1'P_5_3 + -1'P_5_4 + -2'P_5_5 + -2'P_5_6 + -2'P_5_7 + -2'P_5_8 + -2'P_5_9 + -2'P_5_10 + -2'P_5_11 + -2'P_5_12 + -2'P_5_13 + -2'P_5_14 + -2'P_5_15 + -2'P_5_16 + -2'P_5_17 + -1'P_5_18 + -1'P_6_3 + -2'P_6_4 + -2'P_6_5 + -3'P_6_6 + -3'P_6_7 + -3'P_6_8 + -3'P_6_9 + -3'P_6_10 + -3'P_6_11 + -3'P_6_12 + -3'P_6_13 + -3'P_6_14 + -3'P_6_15 + -3'P_6_16 + -2'P_6_17 + -1'P_6_18 + -1'P_7_3 + -2'P_7_4 + -3'P_7_5 + -3'P_7_6 + -4'P_7_7 + -4'P_7_8 + -4'P_7_9 + -4'P_7_10 + -4'P_7_11 + -4'P_7_12 + -4'P_7_13 + -4'P_7_14 + -4'P_7_15 + -3'P_7_16 + -2'P_7_17 + -1'P_7_18 + -1'P_8_3 + -2'P_8_4 + -3'P_8_5 + -4'P_8_6 + -4'P_8_7 + -5'P_8_8 + -5'P_8_9 + -5'P_8_10 + -5'P_8_11 + -5'P_8_12 + -5'P_8_13 + -5'P_8_14 + -4'P_8_15 + -3'P_8_16 + -2'P_8_17 + -1'P_8_18 + -1'P_9_3 + -2'P_9_4 + -3'P_9_5 + -4'P_9_6 + -5'P_9_7 + -5'P_9_8 + -6'P_9_9 + -6'P_9_10 + -6'P_9_11 + -6'P_9_12 + -6'P_9_13 + -5'P_9_14 + -4'P_9_15 + -3'P_9_16 + -2'P_9_17 + -1'P_9_18 + -1'P_10_3 + -2'P_10_4 + -3'P_10_5 + -4'P_10_6 + -5'P_10_7 + -6'P_10_8 + -6'P_10_9 + -7'P_10_10 + -7'P_10_11 + -7'P_10_12 + -6'P_10_13 + -5'P_10_14 + -4'P_10_15 + -3'P_10_16 + -2'P_10_17 + -1'P_10_18 + -1'P_11_3 + -2'P_11_4 + -3'P_11_5 + -4'P_11_6 + -5'P_11_7 + -6'P_11_8 + -7'P_11_9 + -7'P_11_10 + -8'P_11_11 + -7'P_11_12 + -6'P_11_13 + -5'P_11_14 + -4'P_11_15 + -3'P_11_16 + -2'P_11_17 + -1'P_11_18 + -1'P_12_3 + -2'P_12_4 + -3'P_12_5 + -4'P_12_6 + -5'P_12_7 + -6'P_12_8 + -7'P_12_9 + -8'P_12_10 + -7'P_12_11 + -7'P_12_12 + -6'P_12_13 + -5'P_12_14 + -4'P_12_15 + -3'P_12_16 + -2'P_12_17 + -1'P_12_18 + -1'P_13_3 + -2'P_13_4 + -3'P_13_5 + -4'P_13_6 + -5'P_13_7 + -6'P_13_8 + -7'P_13_9 + -7'P_13_10 + -7'P_13_11 + -6'P_13_12 + -6'P_13_13 + -5'P_13_14 + -4'P_13_15 + -3'P_13_16 + -2'P_13_17 + -1'P_13_18 + -1'P_14_3 + -2'P_14_4 + -3'P_14_5 + -4'P_14_6 + -5'P_14_7 + -6'P_14_8 + -6'P_14_9 + -6'P_14_10 + -6'P_14_11 + -6'P_14_12 + -5'P_14_13 + -5'P_14_14 + -4'P_14_15 + -3'P_14_16 + -2'P_14_17 + -1'P_14_18 + -1'P_15_3 + -2'P_15_4 + -3'P_15_5 + -4'P_15_6 + -5'P_15_7 + -5'P_15_8 + -5'P_15_9 + -5'P_15_10 + -5'P_15_11 + -5'P_15_12 + -5'P_15_13 + -4'P_15_14 + -4'P_15_15 + -3'P_15_16 + -2'P_15_17 + -1'P_15_18 + -1'P_16_3 + -2'P_16_4 + -3'P_16_5 + -4'P_16_6 + -4'P_16_7 + -4'P_16_8 + -4'P_16_9 + -4'P_16_10 + -4'P_16_11 + -4'P_16_12 + -4'P_16_13 + -4'P_16_14 + -3'P_16_15 + -3'P_16_16 + -2'P_16_17 + -1'P_16_18 + -1'P_17_3 + -2'P_17_4 + -3'P_17_5 + -3'P_17_6 + -3'P_17_7 + -3'P_17_8 + -3'P_17_9 + -3'P_17_10 + -3'P_17_11 + -3'P_17_12 + -3'P_17_13 + -3'P_17_14 + -3'P_17_15 + -2'P_17_16 + -2'P_17_17 + -1'P_17_18 + -1'P_18_3 + -2'P_18_4 + -2'P_18_5 + -2'P_18_6 + -2'P_18_7 + -2'P_18_8 + -2'P_18_9 + -2'P_18_10 + -2'P_18_11 + -2'P_18_12 + -2'P_18_13 + -2'P_18_14 + -2'P_18_15 + -2'P_18_16 + -1'P_18_17 + -1'P_18_18 + -1'P_19_3 + -1'P_19_4 + -1'P_19_5 + -1'P_19_6 + -1'P_19_7 + -1'P_19_8 + -1'P_19_9 + -1'P_19_10 + -1'P_19_11 + -1'P_19_12 + -1'P_19_13 + -1'P_19_14 + -1'P_19_15 + -1'P_19_16 + -1'P_19_17 + -1'cX_4 + -2'cX_5 + -3'cX_6 + -4'cX_7 + -5'cX_8 + -6'cX_9 + -7'cX_10 + -8'cX_11 + -9'cX_12 + -10'cX_13 + -11'cX_14 + -12'cX_15 + -13'cX_16 + -14'cX_17 + -15'cX_18 + -16'cX_19 + -1'cY_3 + -2'cY_4 + -3'cY_5 + -4'cY_6 + -5'cY_7 + -6'cY_8 + -7'cY_9 + -8'cY_10 + -9'cY_11 + -10'cY_12 + -11'cY_13 + -12'cY_14 + -13'cY_15 + -14'cY_16 + -15'cY_17 + -16'cY_18 + -17'cY_19 + 9'L_0 + 9'L_1 + 8'L_2 + 8'L_3 + 7'L_4 + 7'L_5 + 6'L_6 + 6'L_7 + 5'L_8 + 5'L_9 + 4'L_10 + 4'L_11 + 3'L_12 + 3'L_13 + 2'L_14 + 2'L_15 + L_16 + L_17 + L_23 + L_24 + 2'L_25 + 2'L_26 + 3'L_27 + 3'L_28 + 4'L_29 + 4'L_30 + 5'L_31 + 5'L_32 + 6'L_33 + 6'L_34 + 7'L_35 + 7'L_36 + 8'L_37 + 8'L_38 + R_6 + R_7 + 2'R_8 + 2'R_9 + 3'R_10 + 3'R_11 + 4'R_12 + 4'R_13 + 5'R_14 + 5'R_15 + 6'R_16 + 6'R_17 + 7'R_18 + 7'R_19 + 8'R_20 + 8'R_21 + 9'R_22 + 9'R_23 + 11'R_24 + 12'R_25 + 14'R_26 + 15'R_27 + 17'R_28 + 18'R_29 + 20'R_30 + 21'R_31 + 23'R_32 + 24'R_33 + 26'R_34 + 27'R_35 + 29'R_36 + 30'R_37 + 32'R_38 + 33'R_39 = 315
invariant :P_12_1 + P_12_2 + P_12_3 + P_12_4 + P_12_5 + P_12_6 + P_12_7 + P_12_8 + P_12_9 + P_12_10 + P_12_11 + P_12_12 + P_12_13 + P_12_14 + P_12_15 + P_12_16 + P_12_17 + P_12_18 + P_13_2 + P_13_3 + P_13_4 + P_13_5 + P_13_6 + P_13_7 + P_13_8 + P_13_9 + P_13_10 + P_13_11 + P_13_12 + P_13_13 + P_13_14 + P_13_15 + P_13_16 + P_13_17 + P_14_3 + P_14_4 + P_14_5 + P_14_6 + P_14_7 + P_14_8 + P_14_9 + P_14_10 + P_14_11 + P_14_12 + P_14_13 + P_14_14 + P_14_15 + P_14_16 + P_15_4 + P_15_5 + P_15_6 + P_15_7 + P_15_8 + P_15_9 + P_15_10 + P_15_11 + P_15_12 + P_15_13 + P_15_14 + P_15_15 + P_16_5 + P_16_6 + P_16_7 + P_16_8 + P_16_9 + P_16_10 + P_16_11 + P_16_12 + P_16_13 + P_16_14 + P_17_6 + P_17_7 + P_17_8 + P_17_9 + P_17_10 + P_17_11 + P_17_12 + P_17_13 + P_18_7 + P_18_8 + P_18_9 + P_18_10 + P_18_11 + P_18_12 + P_19_8 + P_19_9 + P_19_10 + P_19_11 + cX_12 + cX_13 + cX_14 + cX_15 + cX_16 + cX_17 + cX_18 + cX_19 + -1'L_31 + -1'L_32 + -1'L_33 + -1'L_34 + -1'L_35 + -1'L_36 + -1'L_37 + -1'L_38 + -1'R_32 + -1'R_33 + -1'R_34 + -1'R_35 + -1'R_36 + -1'R_37 + -1'R_38 + -1'R_39 = -8
invariant :P_18_1 + P_18_2 + P_18_3 + P_18_4 + P_18_5 + P_18_6 + P_18_7 + P_18_8 + P_18_9 + P_18_10 + P_18_11 + P_18_12 + P_18_13 + P_18_14 + P_18_15 + P_18_16 + P_18_17 + P_18_18 + P_19_2 + P_19_3 + P_19_4 + P_19_5 + P_19_6 + P_19_7 + P_19_8 + P_19_9 + P_19_10 + P_19_11 + P_19_12 + P_19_13 + P_19_14 + P_19_15 + P_19_16 + P_19_17 + cX_18 + cX_19 + -1'L_37 + -1'L_38 + -1'R_38 + -1'R_39 = -2
invariant :P_1_11 + -1'P_3_10 + -1'P_3_11 + -1'P_3_12 + -1'P_4_9 + -2'P_4_10 + -2'P_4_11 + -2'P_4_12 + -1'P_4_13 + -1'P_5_8 + -2'P_5_9 + -3'P_5_10 + -3'P_5_11 + -3'P_5_12 + -2'P_5_13 + -1'P_5_14 + -1'P_6_7 + -2'P_6_8 + -3'P_6_9 + -4'P_6_10 + -4'P_6_11 + -4'P_6_12 + -3'P_6_13 + -2'P_6_14 + -1'P_6_15 + -1'P_7_6 + -2'P_7_7 + -3'P_7_8 + -4'P_7_9 + -5'P_7_10 + -5'P_7_11 + -5'P_7_12 + -4'P_7_13 + -3'P_7_14 + -2'P_7_15 + -1'P_7_16 + -1'P_8_5 + -2'P_8_6 + -3'P_8_7 + -4'P_8_8 + -5'P_8_9 + -6'P_8_10 + -6'P_8_11 + -6'P_8_12 + -5'P_8_13 + -4'P_8_14 + -3'P_8_15 + -2'P_8_16 + -1'P_8_17 + -1'P_9_4 + -2'P_9_5 + -3'P_9_6 + -4'P_9_7 + -5'P_9_8 + -6'P_9_9 + -7'P_9_10 + -7'P_9_11 + -7'P_9_12 + -6'P_9_13 + -5'P_9_14 + -4'P_9_15 + -3'P_9_16 + -2'P_9_17 + -1'P_9_18 + -1'P_10_3 + -2'P_10_4 + -3'P_10_5 + -4'P_10_6 + -5'P_10_7 + -6'P_10_8 + -7'P_10_9 + -8'P_10_10 + -8'P_10_11 + -8'P_10_12 + -7'P_10_13 + -6'P_10_14 + -5'P_10_15 + -4'P_10_16 + -3'P_10_17 + -2'P_10_18 + -1'P_11_2 + -2'P_11_3 + -3'P_11_4 + -4'P_11_5 + -5'P_11_6 + -6'P_11_7 + -7'P_11_8 + -8'P_11_9 + -9'P_11_10 + -9'P_11_11 + -9'P_11_12 + -8'P_11_13 + -7'P_11_14 + -6'P_11_15 + -5'P_11_16 + -4'P_11_17 + -2'P_11_18 + -1'P_12_2 + -2'P_12_3 + -3'P_12_4 + -4'P_12_5 + -5'P_12_6 + -6'P_12_7 + -7'P_12_8 + -8'P_12_9 + -9'P_12_10 + -9'P_12_11 + -9'P_12_12 + -8'P_12_13 + -7'P_12_14 + -6'P_12_15 + -5'P_12_16 + -3'P_12_17 + -1'P_12_18 + -1'P_13_3 + -2'P_13_4 + -3'P_13_5 + -4'P_13_6 + -5'P_13_7 + -6'P_13_8 + -7'P_13_9 + -8'P_13_10 + -8'P_13_11 + -8'P_13_12 + -7'P_13_13 + -6'P_13_14 + -5'P_13_15 + -3'P_13_16 + -1'P_13_17 + -1'P_14_4 + -2'P_14_5 + -3'P_14_6 + -4'P_14_7 + -5'P_14_8 + -6'P_14_9 + -7'P_14_10 + -7'P_14_11 + -7'P_14_12 + -6'P_14_13 + -5'P_14_14 + -3'P_14_15 + -1'P_14_16 + -1'P_15_5 + -2'P_15_6 + -3'P_15_7 + -4'P_15_8 + -5'P_15_9 + -6'P_15_10 + -6'P_15_11 + -6'P_15_12 + -5'P_15_13 + -3'P_15_14 + -1'P_15_15 + -1'P_16_6 + -2'P_16_7 + -3'P_16_8 + -4'P_16_9 + -5'P_16_10 + -5'P_16_11 + -5'P_16_12 + -3'P_16_13 + -1'P_16_14 + -1'P_17_7 + -2'P_17_8 + -3'P_17_9 + -4'P_17_10 + -4'P_17_11 + -3'P_17_12 + -1'P_17_13 + -1'P_18_8 + -2'P_18_9 + -3'P_18_10 + -2'P_18_11 + -1'P_18_12 + -1'P_19_9 + -1'P_19_10 + cX_12 + 3'cX_13 + 5'cX_14 + 7'cX_15 + 9'cX_16 + 11'cX_17 + 13'cX_18 + 15'cX_19 + cY_11 + 2'cY_12 + 4'cY_13 + 6'cY_14 + 8'cY_15 + 10'cY_16 + 12'cY_17 + 14'cY_18 + 16'cY_19 + -9'L_0 + -8'L_1 + -7'L_2 + -6'L_3 + -5'L_4 + -4'L_5 + -3'L_6 + -2'L_7 + -1'L_8 + -1'L_31 + -2'L_32 + -3'L_33 + -4'L_34 + -5'L_35 + -6'L_36 + -7'L_37 + -8'L_38 + -1'R_14 + -2'R_15 + -3'R_16 + -4'R_17 + -5'R_18 + -6'R_19 + -7'R_20 + -8'R_21 + -9'R_22 + -10'R_23 + -11'R_24 + -12'R_25 + -13'R_26 + -14'R_27 + -15'R_28 + -16'R_29 + -16'R_30 + -16'R_31 + -17'R_32 + -19'R_33 + -21'R_34 + -23'R_35 + -25'R_36 + -27'R_37 + -29'R_38 + -31'R_39 = -304
invariant :P_19_1 + P_19_2 + P_19_3 + P_19_4 + P_19_5 + P_19_6 + P_19_7 + P_19_8 + P_19_9 + P_19_10 + P_19_11 + P_19_12 + P_19_13 + P_19_14 + P_19_15 + P_19_16 + P_19_17 + P_19_18 + cX_19 + -1'L_38 + -1'R_39 = -1
invariant :P_0_18 + P_3_18 + P_4_17 + P_4_18 + P_5_16 + P_5_17 + P_5_18 + P_6_15 + P_6_16 + P_6_17 + P_6_18 + P_7_14 + P_7_15 + P_7_16 + P_7_17 + P_7_18 + P_8_13 + P_8_14 + P_8_15 + P_8_16 + P_8_17 + P_8_18 + P_9_12 + P_9_13 + P_9_14 + P_9_15 + P_9_16 + P_9_17 + P_9_18 + P_10_11 + P_10_12 + P_10_13 + P_10_14 + P_10_15 + P_10_16 + P_10_17 + P_10_18 + P_11_10 + P_11_11 + P_11_12 + P_11_13 + P_11_14 + P_11_15 + P_11_16 + P_11_17 + P_11_18 + P_12_9 + P_12_10 + P_12_11 + P_12_12 + P_12_13 + P_12_14 + P_12_15 + P_12_16 + P_12_17 + P_12_18 + P_13_8 + P_13_9 + P_13_10 + P_13_11 + P_13_12 + P_13_13 + P_13_14 + P_13_15 + P_13_16 + P_13_17 + P_13_18 + P_14_7 + P_14_8 + P_14_9 + P_14_10 + P_14_11 + P_14_12 + P_14_13 + P_14_14 + P_14_15 + P_14_16 + P_14_17 + P_14_18 + P_15_6 + P_15_7 + P_15_8 + P_15_9 + P_15_10 + P_15_11 + P_15_12 + P_15_13 + P_15_14 + P_15_15 + P_15_16 + P_15_17 + P_15_18 + P_16_5 + P_16_6 + P_16_7 + P_16_8 + P_16_9 + P_16_10 + P_16_11 + P_16_12 + P_16_13 + P_16_14 + P_16_15 + P_16_16 + P_16_17 + P_16_18 + P_17_4 + P_17_5 + P_17_6 + P_17_7 + P_17_8 + P_17_9 + P_17_10 + P_17_11 + P_17_12 + P_17_13 + P_17_14 + P_17_15 + P_17_16 + P_17_17 + P_17_18 + P_18_3 + P_18_4 + P_18_5 + P_18_6 + P_18_7 + P_18_8 + P_18_9 + P_18_10 + P_18_11 + P_18_12 + P_18_13 + P_18_14 + P_18_15 + P_18_16 + P_18_17 + P_18_18 + P_19_2 + P_19_3 + P_19_4 + P_19_5 + P_19_6 + P_19_7 + P_19_8 + P_19_9 + P_19_10 + P_19_11 + P_19_12 + P_19_13 + P_19_14 + P_19_15 + P_19_16 + P_19_17 + P_19_18 + -1'cY_19 + L_0 + L_1 + R_22 + R_23 + R_24 + R_25 + R_26 + R_27 + R_28 + R_29 + R_30 + R_31 + R_32 + R_33 + R_34 + R_35 + R_36 + R_37 + R_38 + R_39 = 19
invariant :P_1_4 + -1'P_3_3 + -1'P_3_4 + -1'P_3_5 + -1'P_4_2 + -2'P_4_3 + -2'P_4_4 + -2'P_4_5 + -1'P_4_6 + -1'P_5_2 + -2'P_5_3 + -2'P_5_4 + -2'P_5_5 + -1'P_5_6 + P_5_8 + P_5_9 + P_5_10 + P_5_11 + P_5_12 + P_5_13 + P_5_14 + P_5_15 + P_5_16 + P_5_17 + P_5_18 + -1'P_6_3 + -1'P_6_4 + -1'P_6_5 + P_6_7 + 2'P_6_8 + 3'P_6_9 + 3'P_6_10 + 3'P_6_11 + 3'P_6_12 + 3'P_6_13 + 3'P_6_14 + 3'P_6_15 + 3'P_6_16 + 3'P_6_17 + 2'P_6_18 + P_7_6 + 2'P_7_7 + 3'P_7_8 + 4'P_7_9 + 5'P_7_10 + 5'P_7_11 + 5'P_7_12 + 5'P_7_13 + 5'P_7_14 + 5'P_7_15 + 5'P_7_16 + 4'P_7_17 + 2'P_7_18 + P_8_4 + P_8_5 + 2'P_8_6 + 3'P_8_7 + 4'P_8_8 + 5'P_8_9 + 6'P_8_10 + 7'P_8_11 + 7'P_8_12 + 7'P_8_13 + 7'P_8_14 + 7'P_8_15 + 6'P_8_16 + 4'P_8_17 + 2'P_8_18 + P_9_4 + 2'P_9_5 + 3'P_9_6 + 4'P_9_7 + 5'P_9_8 + 6'P_9_9 + 7'P_9_10 + 8'P_9_11 + 9'P_9_12 + 9'P_9_13 + 9'P_9_14 + 8'P_9_15 + 6'P_9_16 + 4'P_9_17 + 2'P_9_18 + P_10_4 + 2'P_10_5 + 4'P_10_6 + 5'P_10_7 + 6'P_10_8 + 7'P_10_9 + 8'P_10_10 + 9'P_10_11 + 10'P_10_12 + 11'P_10_13 + 10'P_10_14 + 8'P_10_15 + 6'P_10_16 + 4'P_10_17 + 2'P_10_18 + P_11_4 + 2'P_11_5 + 4'P_11_6 + 6'P_11_7 + 7'P_11_8 + 8'P_11_9 + 9'P_11_10 + 10'P_11_11 + 11'P_11_12 + 11'P_11_13 + 10'P_11_14 + 8'P_11_15 + 6'P_11_16 + 4'P_11_17 + 2'P_11_18 + P_12_4 + 2'P_12_5 + 4'P_12_6 + 6'P_12_7 + 8'P_12_8 + 9'P_12_9 + 10'P_12_10 + 11'P_12_11 + 11'P_12_12 + 10'P_12_13 + 9'P_12_14 + 8'P_12_15 + 6'P_12_16 + 4'P_12_17 + 2'P_12_18 + P_13_4 + 2'P_13_5 + 4'P_13_6 + 6'P_13_7 + 8'P_13_8 + 10'P_13_9 + 11'P_13_10 + 11'P_13_11 + 10'P_13_12 + 9'P_13_13 + 8'P_13_14 + 7'P_13_15 + 6'P_13_16 + 4'P_13_17 + 2'P_13_18 + P_14_4 + 2'P_14_5 + 4'P_14_6 + 6'P_14_7 + 8'P_14_8 + 10'P_14_9 + 11'P_14_10 + 10'P_14_11 + 9'P_14_12 + 8'P_14_13 + 7'P_14_14 + 6'P_14_15 + 5'P_14_16 + 4'P_14_17 + 2'P_14_18 + P_15_4 + 2'P_15_5 + 4'P_15_6 + 6'P_15_7 + 8'P_15_8 + 9'P_15_9 + 9'P_15_10 + 9'P_15_11 + 8'P_15_12 + 7'P_15_13 + 6'P_15_14 + 5'P_15_15 + 4'P_15_16 + 3'P_15_17 + 2'P_15_18 + P_16_4 + 2'P_16_5 + 4'P_16_6 + 6'P_16_7 + 7'P_16_8 + 7'P_16_9 + 7'P_16_10 + 7'P_16_11 + 7'P_16_12 + 6'P_16_13 + 5'P_16_14 + 4'P_16_15 + 3'P_16_16 + 2'P_16_17 + P_16_18 + P_17_4 + 2'P_17_5 + 4'P_17_6 + 5'P_17_7 + 5'P_17_8 + 5'P_17_9 + 5'P_17_10 + 5'P_17_11 + 5'P_17_12 + 5'P_17_13 + 4'P_17_14 + 3'P_17_15 + 2'P_17_16 + P_17_17 + P_18_4 + 2'P_18_5 + 3'P_18_6 + 3'P_18_7 + 3'P_18_8 + 3'P_18_9 + 3'P_18_10 + 3'P_18_11 + 3'P_18_12 + 3'P_18_13 + 3'P_18_14 + 2'P_18_15 + P_18_16 + P_19_4 + P_19_5 + P_19_6 + P_19_7 + P_19_8 + P_19_9 + P_19_10 + P_19_11 + P_19_12 + P_19_13 + P_19_14 + P_19_15 + cX_5 + 3'cX_6 + 5'cX_7 + 7'cX_8 + 9'cX_9 + 11'cX_10 + 13'cX_11 + 15'cX_12 + 17'cX_13 + 19'cX_14 + 21'cX_15 + 23'cX_16 + 25'cX_17 + 27'cX_18 + 29'cX_19 + cY_4 + 2'cY_5 + 4'cY_6 + 6'cY_7 + 8'cY_8 + 10'cY_9 + 12'cY_10 + 14'cY_11 + 16'cY_12 + 18'cY_13 + 20'cY_14 + 22'cY_15 + 24'cY_16 + 26'cY_17 + 28'cY_18 + 30'cY_19 + -16'L_0 + -15'L_1 + -14'L_2 + -13'L_3 + -12'L_4 + -11'L_5 + -10'L_6 + -9'L_7 + -8'L_8 + -7'L_9 + -6'L_10 + -5'L_11 + -4'L_12 + -3'L_13 + -2'L_14 + -1'L_15 + -1'L_24 + -2'L_25 + -3'L_26 + -4'L_27 + -5'L_28 + -6'L_29 + -7'L_30 + -8'L_31 + -9'L_32 + -10'L_33 + -11'L_34 + -12'L_35 + -13'L_36 + -14'L_37 + -15'L_38 + -1'R_7 + -2'R_8 + -3'R_9 + -4'R_10 + -5'R_11 + -6'R_12 + -7'R_13 + -8'R_14 + -9'R_15 + -10'R_16 + -11'R_17 + -12'R_18 + -13'R_19 + -14'R_20 + -15'R_21 + -16'R_22 + -17'R_23 + -18'R_24 + -20'R_25 + -23'R_26 + -26'R_27 + -29'R_28 + -32'R_29 + -35'R_30 + -38'R_31 + -41'R_32 + -44'R_33 + -47'R_34 + -50'R_35 + -53'R_36 + -55'R_37 + -57'R_38 + -59'R_39 = -570
invariant :P_1_6 + -1'P_3_5 + -1'P_3_6 + -1'P_3_7 + -1'P_4_4 + -2'P_4_5 + -2'P_4_6 + -2'P_4_7 + -1'P_4_8 + -1'P_5_3 + -2'P_5_4 + -3'P_5_5 + -3'P_5_6 + -3'P_5_7 + -2'P_5_8 + -1'P_5_9 + -1'P_6_2 + -2'P_6_3 + -3'P_6_4 + -4'P_6_5 + -4'P_6_6 + -4'P_6_7 + -3'P_6_8 + -2'P_6_9 + -1'P_6_10 + -1'P_7_2 + -2'P_7_3 + -3'P_7_4 + -4'P_7_5 + -4'P_7_6 + -4'P_7_7 + -3'P_7_8 + -2'P_7_9 + -1'P_7_10 + P_7_12 + P_7_13 + P_7_14 + P_7_15 + P_7_16 + P_7_17 + P_7_18 + -1'P_8_3 + -2'P_8_4 + -3'P_8_5 + -3'P_8_6 + -3'P_8_7 + -2'P_8_8 + -1'P_8_9 + P_8_11 + 2'P_8_12 + 3'P_8_13 + 3'P_8_14 + 3'P_8_15 + 3'P_8_16 + 3'P_8_17 + 2'P_8_18 + -1'P_9_4 + -2'P_9_5 + -2'P_9_6 + -2'P_9_7 + -1'P_9_8 + P_9_10 + 2'P_9_11 + 3'P_9_12 + 4'P_9_13 + 5'P_9_14 + 5'P_9_15 + 5'P_9_16 + 4'P_9_17 + 2'P_9_18 + -1'P_10_5 + -1'P_10_6 + -1'P_10_7 + P_10_9 + 2'P_10_10 + 3'P_10_11 + 4'P_10_12 + 5'P_10_13 + 6'P_10_14 + 7'P_10_15 + 6'P_10_16 + 4'P_10_17 + 2'P_10_18 + P_11_8 + 2'P_11_9 + 3'P_11_10 + 4'P_11_11 + 5'P_11_12 + 6'P_11_13 + 7'P_11_14 + 7'P_11_15 + 6'P_11_16 + 4'P_11_17 + 2'P_11_18 + P_12_6 + P_12_7 + 2'P_12_8 + 3'P_12_9 + 4'P_12_10 + 5'P_12_11 + 6'P_12_12 + 7'P_12_13 + 7'P_12_14 + 6'P_12_15 + 5'P_12_16 + 4'P_12_17 + 2'P_12_18 + P_13_6 + 2'P_13_7 + 3'P_13_8 + 4'P_13_9 + 5'P_13_10 + 6'P_13_11 + 7'P_13_12 + 7'P_13_13 + 6'P_13_14 + 5'P_13_15 + 4'P_13_16 + 3'P_13_17 + 2'P_13_18 + P_14_6 + 2'P_14_7 + 4'P_14_8 + 5'P_14_9 + 6'P_14_10 + 7'P_14_11 + 7'P_14_12 + 6'P_14_13 + 5'P_14_14 + 4'P_14_15 + 3'P_14_16 + 2'P_14_17 + P_14_18 + P_15_6 + 2'P_15_7 + 4'P_15_8 + 6'P_15_9 + 7'P_15_10 + 7'P_15_11 + 6'P_15_12 + 5'P_15_13 + 4'P_15_14 + 3'P_15_15 + 2'P_15_16 + P_15_17 + P_16_6 + 2'P_16_7 + 4'P_16_8 + 6'P_16_9 + 7'P_16_10 + 6'P_16_11 + 5'P_16_12 + 4'P_16_13 + 3'P_16_14 + 2'P_16_15 + P_16_16 + P_17_6 + 2'P_17_7 + 4'P_17_8 + 5'P_17_9 + 5'P_17_10 + 5'P_17_11 + 4'P_17_12 + 3'P_17_13 + 2'P_17_14 + P_17_15 + P_18_6 + 2'P_18_7 + 3'P_18_8 + 3'P_18_9 + 3'P_18_10 + 3'P_18_11 + 3'P_18_12 + 2'P_18_13 + P_18_14 + P_19_6 + P_19_7 + P_19_8 + P_19_9 + P_19_10 + P_19_11 + P_19_12 + P_19_13 + cX_7 + 3'cX_8 + 5'cX_9 + 7'cX_10 + 9'cX_11 + 11'cX_12 + 13'cX_13 + 15'cX_14 + 17'cX_15 + 19'cX_16 + 21'cX_17 + 23'cX_18 + 25'cX_19 + cY_6 + 2'cY_7 + 4'cY_8 + 6'cY_9 + 8'cY_10 + 10'cY_11 + 12'cY_12 + 14'cY_13 + 16'cY_14 + 18'cY_15 + 20'cY_16 + 22'cY_17 + 24'cY_18 + 26'cY_19 + -14'L_0 + -13'L_1 + -12'L_2 + -11'L_3 + -10'L_4 + -9'L_5 + -8'L_6 + -7'L_7 + -6'L_8 + -5'L_9 + -4'L_10 + -3'L_11 + -2'L_12 + -1'L_13 + -1'L_26 + -2'L_27 + -3'L_28 + -4'L_29 + -5'L_30 + -6'L_31 + -7'L_32 + -8'L_33 + -9'L_34 + -10'L_35 + -11'L_36 + -12'L_37 + -13'L_38 + -1'R_9 + -2'R_10 + -3'R_11 + -4'R_12 + -5'R_13 + -6'R_14 + -7'R_15 + -8'R_16 + -9'R_17 + -10'R_18 + -11'R_19 + -12'R_20 + -13'R_21 + -14'R_22 + -15'R_23 + -16'R_24 + -17'R_25 + -18'R_26 + -20'R_27 + -23'R_28 + -26'R_29 + -29'R_30 + -32'R_31 + -35'R_32 + -38'R_33 + -41'R_34 + -43'R_35 + -45'R_36 + -47'R_37 + -49'R_38 + -51'R_39 = -494
invariant :P_7_19 + P_8_18 + P_9_17 + P_10_16 + P_11_15 + P_12_14 + P_13_13 + P_14_12 + P_15_11 + P_16_10 + P_17_9 + P_18_8 + P_19_7 + R_27 = 1
invariant :P_1_0 + P_3_2 + P_3_3 + P_3_4 + P_3_5 + P_3_6 + P_3_7 + P_3_8 + P_3_9 + P_3_10 + P_3_11 + P_3_12 + P_3_13 + P_3_14 + P_3_15 + P_3_16 + P_3_17 + P_3_18 + P_4_2 + 2'P_4_3 + 2'P_4_4 + 2'P_4_5 + 2'P_4_6 + 2'P_4_7 + 2'P_4_8 + 2'P_4_9 + 2'P_4_10 + 2'P_4_11 + 2'P_4_12 + 2'P_4_13 + 2'P_4_14 + 2'P_4_15 + 2'P_4_16 + 2'P_4_17 + P_4_18 + P_5_2 + 2'P_5_3 + 3'P_5_4 + 3'P_5_5 + 3'P_5_6 + 3'P_5_7 + 3'P_5_8 + 3'P_5_9 + 3'P_5_10 + 3'P_5_11 + 3'P_5_12 + 3'P_5_13 + 3'P_5_14 + 3'P_5_15 + 3'P_5_16 + 2'P_5_17 + P_5_18 + P_6_2 + 2'P_6_3 + 3'P_6_4 + 4'P_6_5 + 4'P_6_6 + 4'P_6_7 + 4'P_6_8 + 4'P_6_9 + 4'P_6_10 + 4'P_6_11 + 4'P_6_12 + 4'P_6_13 + 4'P_6_14 + 4'P_6_15 + 3'P_6_16 + 2'P_6_17 + P_6_18 + P_7_2 + 2'P_7_3 + 3'P_7_4 + 4'P_7_5 + 5'P_7_6 + 5'P_7_7 + 5'P_7_8 + 5'P_7_9 + 5'P_7_10 + 5'P_7_11 + 5'P_7_12 + 5'P_7_13 + 5'P_7_14 + 4'P_7_15 + 3'P_7_16 + 2'P_7_17 + P_7_18 + P_8_2 + 2'P_8_3 + 3'P_8_4 + 4'P_8_5 + 5'P_8_6 + 6'P_8_7 + 6'P_8_8 + 6'P_8_9 + 6'P_8_10 + 6'P_8_11 + 6'P_8_12 + 6'P_8_13 + 5'P_8_14 + 4'P_8_15 + 3'P_8_16 + 2'P_8_17 + P_8_18 + P_9_2 + 2'P_9_3 + 3'P_9_4 + 4'P_9_5 + 5'P_9_6 + 6'P_9_7 + 7'P_9_8 + 7'P_9_9 + 7'P_9_10 + 7'P_9_11 + 7'P_9_12 + 6'P_9_13 + 5'P_9_14 + 4'P_9_15 + 3'P_9_16 + 2'P_9_17 + P_9_18 + P_10_2 + 2'P_10_3 + 3'P_10_4 + 4'P_10_5 + 5'P_10_6 + 6'P_10_7 + 7'P_10_8 + 8'P_10_9 + 8'P_10_10 + 8'P_10_11 + 7'P_10_12 + 6'P_10_13 + 5'P_10_14 + 4'P_10_15 + 3'P_10_16 + 2'P_10_17 + P_10_18 + P_11_2 + 2'P_11_3 + 3'P_11_4 + 4'P_11_5 + 5'P_11_6 + 6'P_11_7 + 7'P_11_8 + 8'P_11_9 + 9'P_11_10 + 8'P_11_11 + 7'P_11_12 + 6'P_11_13 + 5'P_11_14 + 4'P_11_15 + 3'P_11_16 + 2'P_11_17 + P_11_18 + P_12_2 + 2'P_12_3 + 3'P_12_4 + 4'P_12_5 + 5'P_12_6 + 6'P_12_7 + 7'P_12_8 + 8'P_12_9 + 8'P_12_10 + 8'P_12_11 + 7'P_12_12 + 6'P_12_13 + 5'P_12_14 + 4'P_12_15 + 3'P_12_16 + 2'P_12_17 + P_12_18 + P_13_2 + 2'P_13_3 + 3'P_13_4 + 4'P_13_5 + 5'P_13_6 + 6'P_13_7 + 7'P_13_8 + 7'P_13_9 + 7'P_13_10 + 7'P_13_11 + 7'P_13_12 + 6'P_13_13 + 5'P_13_14 + 4'P_13_15 + 3'P_13_16 + 2'P_13_17 + P_13_18 + P_14_2 + 2'P_14_3 + 3'P_14_4 + 4'P_14_5 + 5'P_14_6 + 6'P_14_7 + 6'P_14_8 + 6'P_14_9 + 6'P_14_10 + 6'P_14_11 + 6'P_14_12 + 6'P_14_13 + 5'P_14_14 + 4'P_14_15 + 3'P_14_16 + 2'P_14_17 + P_14_18 + P_15_2 + 2'P_15_3 + 3'P_15_4 + 4'P_15_5 + 5'P_15_6 + 5'P_15_7 + 5'P_15_8 + 5'P_15_9 + 5'P_15_10 + 5'P_15_11 + 5'P_15_12 + 5'P_15_13 + 5'P_15_14 + 4'P_15_15 + 3'P_15_16 + 2'P_15_17 + P_15_18 + P_16_2 + 2'P_16_3 + 3'P_16_4 + 4'P_16_5 + 4'P_16_6 + 4'P_16_7 + 4'P_16_8 + 4'P_16_9 + 4'P_16_10 + 4'P_16_11 + 4'P_16_12 + 4'P_16_13 + 4'P_16_14 + 4'P_16_15 + 3'P_16_16 + 2'P_16_17 + P_16_18 + P_17_2 + 2'P_17_3 + 3'P_17_4 + 3'P_17_5 + 3'P_17_6 + 3'P_17_7 + 3'P_17_8 + 3'P_17_9 + 3'P_17_10 + 3'P_17_11 + 3'P_17_12 + 3'P_17_13 + 3'P_17_14 + 3'P_17_15 + 3'P_17_16 + 2'P_17_17 + P_17_18 + P_18_2 + 2'P_18_3 + 2'P_18_4 + 2'P_18_5 + 2'P_18_6 + 2'P_18_7 + 2'P_18_8 + 2'P_18_9 + 2'P_18_10 + 2'P_18_11 + 2'P_18_12 + 2'P_18_13 + 2'P_18_14 + 2'P_18_15 + 2'P_18_16 + 2'P_18_17 + P_18_18 + P_19_2 + P_19_3 + P_19_4 + P_19_5 + P_19_6 + P_19_7 + P_19_8 + P_19_9 + P_19_10 + P_19_11 + P_19_12 + P_19_13 + P_19_14 + P_19_15 + P_19_16 + P_19_17 + P_19_18 + cX_3 + 2'cX_4 + 3'cX_5 + 4'cX_6 + 5'cX_7 + 6'cX_8 + 7'cX_9 + 8'cX_10 + 9'cX_11 + 10'cX_12 + 11'cX_13 + 12'cX_14 + 13'cX_15 + 14'cX_16 + 15'cX_17 + 16'cX_18 + 17'cX_19 + cY_2 + 2'cY_3 + 3'cY_4 + 4'cY_5 + 5'cY_6 + 6'cY_7 + 7'cY_8 + 8'cY_9 + 9'cY_10 + 10'cY_11 + 11'cY_12 + 12'cY_13 + 13'cY_14 + 14'cY_15 + 15'cY_16 + 16'cY_17 + 17'cY_18 + 18'cY_19 + -9'L_0 + -9'L_1 + -8'L_2 + -8'L_3 + -7'L_4 + -7'L_5 + -6'L_6 + -6'L_7 + -5'L_8 + -5'L_9 + -4'L_10 + -4'L_11 + -3'L_12 + -3'L_13 + -2'L_14 + -2'L_15 + -1'L_16 + -1'L_17 + L_20 + -1'L_23 + -1'L_24 + -2'L_25 + -2'L_26 + -3'L_27 + -3'L_28 + -4'L_29 + -4'L_30 + -5'L_31 + -5'L_32 + -6'L_33 + -6'L_34 + -7'L_35 + -7'L_36 + -8'L_37 + -8'L_38 + -1'R_4 + -1'R_5 + -2'R_6 + -2'R_7 + -3'R_8 + -3'R_9 + -4'R_10 + -4'R_11 + -5'R_12 + -5'R_13 + -6'R_14 + -6'R_15 + -7'R_16 + -7'R_17 + -8'R_18 + -8'R_19 + -9'R_20 + -9'R_21 + -10'R_22 + -11'R_23 + -13'R_24 + -14'R_25 + -16'R_26 + -17'R_27 + -19'R_28 + -20'R_29 + -22'R_30 + -23'R_31 + -25'R_32 + -26'R_33 + -28'R_34 + -29'R_35 + -31'R_36 + -32'R_37 + -34'R_38 + -35'R_39 = -332
invariant :P_10_1 + P_10_2 + P_10_3 + P_10_4 + P_10_5 + P_10_6 + P_10_7 + P_10_8 + P_10_9 + P_10_10 + P_10_11 + P_10_12 + P_10_13 + P_10_14 + P_10_15 + P_10_16 + P_10_17 + P_10_18 + P_11_2 + P_11_3 + P_11_4 + P_11_5 + P_11_6 + P_11_7 + P_11_8 + P_11_9 + P_11_10 + P_11_11 + P_11_12 + P_11_13 + P_11_14 + P_11_15 + P_11_16 + P_11_17 + P_12_3 + P_12_4 + P_12_5 + P_12_6 + P_12_7 + P_12_8 + P_12_9 + P_12_10 + P_12_11 + P_12_12 + P_12_13 + P_12_14 + P_12_15 + P_12_16 + P_13_4 + P_13_5 + P_13_6 + P_13_7 + P_13_8 + P_13_9 + P_13_10 + P_13_11 + P_13_12 + P_13_13 + P_13_14 + P_13_15 + P_14_5 + P_14_6 + P_14_7 + P_14_8 + P_14_9 + P_14_10 + P_14_11 + P_14_12 + P_14_13 + P_14_14 + P_15_6 + P_15_7 + P_15_8 + P_15_9 + P_15_10 + P_15_11 + P_15_12 + P_15_13 + P_16_7 + P_16_8 + P_16_9 + P_16_10 + P_16_11 + P_16_12 + P_17_8 + P_17_9 + P_17_10 + P_17_11 + P_18_9 + P_18_10 + cX_10 + cX_11 + cX_12 + cX_13 + cX_14 + cX_15 + cX_16 + cX_17 + cX_18 + cX_19 + -1'L_29 + -1'L_30 + -1'L_31 + -1'L_32 + -1'L_33 + -1'L_34 + -1'L_35 + -1'L_36 + -1'L_37 + -1'L_38 + -1'R_30 + -1'R_31 + -1'R_32 + -1'R_33 + -1'R_34 + -1'R_35 + -1'R_36 + -1'R_37 + -1'R_38 + -1'R_39 = -10
invariant :P_1_9 + -1'P_3_8 + -1'P_3_9 + -1'P_3_10 + -1'P_4_7 + -2'P_4_8 + -2'P_4_9 + -2'P_4_10 + -1'P_4_11 + -1'P_5_6 + -2'P_5_7 + -3'P_5_8 + -3'P_5_9 + -3'P_5_10 + -2'P_5_11 + -1'P_5_12 + -1'P_6_5 + -2'P_6_6 + -3'P_6_7 + -4'P_6_8 + -4'P_6_9 + -4'P_6_10 + -3'P_6_11 + -2'P_6_12 + -1'P_6_13 + -1'P_7_4 + -2'P_7_5 + -3'P_7_6 + -4'P_7_7 + -5'P_7_8 + -5'P_7_9 + -5'P_7_10 + -4'P_7_11 + -3'P_7_12 + -2'P_7_13 + -1'P_7_14 + -1'P_8_3 + -2'P_8_4 + -3'P_8_5 + -4'P_8_6 + -5'P_8_7 + -6'P_8_8 + -6'P_8_9 + -6'P_8_10 + -5'P_8_11 + -4'P_8_12 + -3'P_8_13 + -2'P_8_14 + -1'P_8_15 + -1'P_9_2 + -2'P_9_3 + -3'P_9_4 + -4'P_9_5 + -5'P_9_6 + -6'P_9_7 + -7'P_9_8 + -7'P_9_9 + -7'P_9_10 + -6'P_9_11 + -5'P_9_12 + -4'P_9_13 + -3'P_9_14 + -2'P_9_15 + -1'P_9_16 + -1'P_10_2 + -2'P_10_3 + -3'P_10_4 + -4'P_10_5 + -5'P_10_6 + -6'P_10_7 + -7'P_10_8 + -7'P_10_9 + -7'P_10_10 + -6'P_10_11 + -5'P_10_12 + -4'P_10_13 + -3'P_10_14 + -2'P_10_15 + -1'P_10_16 + P_10_18 + -1'P_11_3 + -2'P_11_4 + -3'P_11_5 + -4'P_11_6 + -5'P_11_7 + -6'P_11_8 + -6'P_11_9 + -6'P_11_10 + -5'P_11_11 + -4'P_11_12 + -3'P_11_13 + -2'P_11_14 + -1'P_11_15 + P_11_17 + P_11_18 + -1'P_12_4 + -2'P_12_5 + -3'P_12_6 + -4'P_12_7 + -5'P_12_8 + -5'P_12_9 + -5'P_12_10 + -4'P_12_11 + -3'P_12_12 + -2'P_12_13 + -1'P_12_14 + P_12_16 + P_12_17 + -1'P_13_5 + -2'P_13_6 + -3'P_13_7 + -4'P_13_8 + -4'P_13_9 + -4'P_13_10 + -3'P_13_11 + -2'P_13_12 + -1'P_13_13 + P_13_15 + P_13_16 + -1'P_14_6 + -2'P_14_7 + -3'P_14_8 + -3'P_14_9 + -3'P_14_10 + -2'P_14_11 + -1'P_14_12 + P_14_14 + P_14_15 + -1'P_15_7 + -2'P_15_8 + -2'P_15_9 + -2'P_15_10 + -1'P_15_11 + P_15_13 + P_15_14 + -1'P_16_8 + -1'P_16_9 + -1'P_16_10 + P_16_12 + P_16_13 + P_17_11 + P_17_12 + P_18_9 + P_18_10 + P_18_11 + P_19_9 + P_19_10 + cX_10 + 3'cX_11 + 5'cX_12 + 7'cX_13 + 9'cX_14 + 11'cX_15 + 13'cX_16 + 15'cX_17 + 17'cX_18 + 19'cX_19 + cY_9 + 2'cY_10 + 4'cY_11 + 6'cY_12 + 8'cY_13 + 10'cY_14 + 12'cY_15 + 14'cY_16 + 16'cY_17 + 18'cY_18 + 20'cY_19 + -11'L_0 + -10'L_1 + -9'L_2 + -8'L_3 + -7'L_4 + -6'L_5 + -5'L_6 + -4'L_7 + -3'L_8 + -2'L_9 + -1'L_10 + -1'L_29 + -2'L_30 + -3'L_31 + -4'L_32 + -5'L_33 + -6'L_34 + -7'L_35 + -8'L_36 + -9'L_37 + -10'L_38 + -1'R_12 + -2'R_13 + -3'R_14 + -4'R_15 + -5'R_16 + -6'R_17 + -7'R_18 + -8'R_19 + -9'R_20 + -10'R_21 + -11'R_22 + -12'R_23 + -13'R_24 + -14'R_25 + -15'R_26 + -16'R_27 + -17'R_28 + -18'R_29 + -20'R_30 + -23'R_31 + -25'R_32 + -27'R_33 + -29'R_34 + -31'R_35 + -33'R_36 + -35'R_37 + -37'R_38 + -39'R_39 = -380
invariant :P_1_8 + -1'P_3_7 + -1'P_3_8 + -1'P_3_9 + -1'P_4_6 + -2'P_4_7 + -2'P_4_8 + -2'P_4_9 + -1'P_4_10 + -1'P_5_5 + -2'P_5_6 + -3'P_5_7 + -3'P_5_8 + -3'P_5_9 + -2'P_5_10 + -1'P_5_11 + -1'P_6_4 + -2'P_6_5 + -3'P_6_6 + -4'P_6_7 + -4'P_6_8 + -4'P_6_9 + -3'P_6_10 + -2'P_6_11 + -1'P_6_12 + -1'P_7_3 + -2'P_7_4 + -3'P_7_5 + -4'P_7_6 + -5'P_7_7 + -5'P_7_8 + -5'P_7_9 + -4'P_7_10 + -3'P_7_11 + -2'P_7_12 + -1'P_7_13 + -1'P_8_2 + -2'P_8_3 + -3'P_8_4 + -4'P_8_5 + -5'P_8_6 + -6'P_8_7 + -6'P_8_8 + -6'P_8_9 + -5'P_8_10 + -4'P_8_11 + -3'P_8_12 + -2'P_8_13 + -1'P_8_14 + -1'P_9_2 + -2'P_9_3 + -3'P_9_4 + -4'P_9_5 + -5'P_9_6 + -6'P_9_7 + -6'P_9_8 + -6'P_9_9 + -5'P_9_10 + -4'P_9_11 + -3'P_9_12 + -2'P_9_13 + -1'P_9_14 + P_9_16 + P_9_17 + P_9_18 + -1'P_10_3 + -2'P_10_4 + -3'P_10_5 + -4'P_10_6 + -5'P_10_7 + -5'P_10_8 + -5'P_10_9 + -4'P_10_10 + -3'P_10_11 + -2'P_10_12 + -1'P_10_13 + P_10_15 + 2'P_10_16 + 3'P_10_17 + 2'P_10_18 + -1'P_11_4 + -2'P_11_5 + -3'P_11_6 + -4'P_11_7 + -4'P_11_8 + -4'P_11_9 + -3'P_11_10 + -2'P_11_11 + -1'P_11_12 + P_11_14 + 2'P_11_15 + 3'P_11_16 + 3'P_11_17 + 2'P_11_18 + -1'P_12_5 + -2'P_12_6 + -3'P_12_7 + -3'P_12_8 + -3'P_12_9 + -2'P_12_10 + -1'P_12_11 + P_12_13 + 2'P_12_14 + 3'P_12_15 + 3'P_12_16 + 2'P_12_17 + P_12_18 + -1'P_13_6 + -2'P_13_7 + -2'P_13_8 + -2'P_13_9 + -1'P_13_10 + P_13_12 + 2'P_13_13 + 3'P_13_14 + 3'P_13_15 + 2'P_13_16 + P_13_17 + -1'P_14_7 + -1'P_14_8 + -1'P_14_9 + P_14_11 + 2'P_14_12 + 3'P_14_13 + 3'P_14_14 + 2'P_14_15 + P_14_16 + P_15_10 + 2'P_15_11 + 3'P_15_12 + 3'P_15_13 + 2'P_15_14 + P_15_15 + P_16_8 + P_16_9 + 2'P_16_10 + 3'P_16_11 + 3'P_16_12 + 2'P_16_13 + P_16_14 + P_17_8 + 2'P_17_9 + 3'P_17_10 + 3'P_17_11 + 2'P_17_12 + P_17_13 + P_18_8 + 2'P_18_9 + 3'P_18_10 + 2'P_18_11 + P_18_12 + P_19_8 + P_19_9 + P_19_10 + P_19_11 + cX_9 + 3'cX_10 + 5'cX_11 + 7'cX_12 + 9'cX_13 + 11'cX_14 + 13'cX_15 + 15'cX_16 + 17'cX_17 + 19'cX_18 + 21'cX_19 + cY_8 + 2'cY_9 + 4'cY_10 + 6'cY_11 + 8'cY_12 + 10'cY_13 + 12'cY_14 + 14'cY_15 + 16'cY_16 + 18'cY_17 + 20'cY_18 + 22'cY_19 + -12'L_0 + -11'L_1 + -10'L_2 + -9'L_3 + -8'L_4 + -7'L_5 + -6'L_6 + -5'L_7 + -4'L_8 + -3'L_9 + -2'L_10 + -1'L_11 + -1'L_28 + -2'L_29 + -3'L_30 + -4'L_31 + -5'L_32 + -6'L_33 + -7'L_34 + -8'L_35 + -9'L_36 + -10'L_37 + -11'L_38 + -1'R_11 + -2'R_12 + -3'R_13 + -4'R_14 + -5'R_15 + -6'R_16 + -7'R_17 + -8'R_18 + -9'R_19 + -10'R_20 + -11'R_21 + -12'R_22 + -13'R_23 + -14'R_24 + -15'R_25 + -16'R_26 + -17'R_27 + -18'R_28 + -20'R_29 + -23'R_30 + -26'R_31 + -29'R_32 + -31'R_33 + -33'R_34 + -35'R_35 + -37'R_36 + -39'R_37 + -41'R_38 + -43'R_39 = -418
invariant :P_8_19 + P_9_18 + P_10_17 + P_11_16 + P_12_15 + P_13_14 + P_14_13 + P_15_12 + P_16_11 + P_17_10 + P_18_9 + P_19_8 + R_28 = 1
invariant :P_19_19 + R_39 = 1
invariant :P_2_11 + P_3_10 + P_3_11 + P_3_12 + P_4_9 + P_4_10 + 2'P_4_11 + P_4_12 + P_4_13 + P_5_8 + P_5_9 + 2'P_5_10 + 2'P_5_11 + 2'P_5_12 + P_5_13 + P_5_14 + P_6_7 + P_6_8 + 2'P_6_9 + 2'P_6_10 + 3'P_6_11 + 2'P_6_12 + 2'P_6_13 + P_6_14 + P_6_15 + P_7_6 + P_7_7 + 2'P_7_8 + 2'P_7_9 + 3'P_7_10 + 3'P_7_11 + 3'P_7_12 + 2'P_7_13 + 2'P_7_14 + P_7_15 + P_7_16 + P_8_5 + P_8_6 + 2'P_8_7 + 2'P_8_8 + 3'P_8_9 + 3'P_8_10 + 4'P_8_11 + 3'P_8_12 + 3'P_8_13 + 2'P_8_14 + 2'P_8_15 + P_8_16 + P_8_17 + P_9_4 + P_9_5 + 2'P_9_6 + 2'P_9_7 + 3'P_9_8 + 3'P_9_9 + 4'P_9_10 + 4'P_9_11 + 4'P_9_12 + 3'P_9_13 + 3'P_9_14 + 2'P_9_15 + 2'P_9_16 + P_9_17 + P_9_18 + P_10_3 + P_10_4 + 2'P_10_5 + 2'P_10_6 + 3'P_10_7 + 3'P_10_8 + 4'P_10_9 + 4'P_10_10 + 5'P_10_11 + 4'P_10_12 + 4'P_10_13 + 3'P_10_14 + 3'P_10_15 + 2'P_10_16 + 2'P_10_17 + P_10_18 + P_11_2 + P_11_3 + 2'P_11_4 + 2'P_11_5 + 3'P_11_6 + 3'P_11_7 + 4'P_11_8 + 4'P_11_9 + 5'P_11_10 + 5'P_11_11 + 5'P_11_12 + 4'P_11_13 + 4'P_11_14 + 3'P_11_15 + 3'P_11_16 + 2'P_11_17 + P_11_18 + P_12_3 + P_12_4 + 2'P_12_5 + 2'P_12_6 + 3'P_12_7 + 3'P_12_8 + 4'P_12_9 + 4'P_12_10 + 5'P_12_11 + 4'P_12_12 + 4'P_12_13 + 3'P_12_14 + 3'P_12_15 + 2'P_12_16 + P_12_17 + P_13_4 + P_13_5 + 2'P_13_6 + 2'P_13_7 + 3'P_13_8 + 3'P_13_9 + 4'P_13_10 + 4'P_13_11 + 4'P_13_12 + 3'P_13_13 + 3'P_13_14 + 2'P_13_15 + P_13_16 + P_14_5 + P_14_6 + 2'P_14_7 + 2'P_14_8 + 3'P_14_9 + 3'P_14_10 + 4'P_14_11 + 3'P_14_12 + 3'P_14_13 + 2'P_14_14 + P_14_15 + P_15_6 + P_15_7 + 2'P_15_8 + 2'P_15_9 + 3'P_15_10 + 3'P_15_11 + 3'P_15_12 + 2'P_15_13 + P_15_14 + P_16_7 + P_16_8 + 2'P_16_9 + 2'P_16_10 + 3'P_16_11 + 2'P_16_12 + P_16_13 + P_17_8 + P_17_9 + 2'P_17_10 + 2'P_17_11 + P_17_12 + P_18_9 + P_18_10 + P_18_11 + -1'cX_12 + -2'cX_13 + -3'cX_14 + -4'cX_15 + -5'cX_16 + -6'cX_17 + -7'cX_18 + -8'cX_19 + -1'cY_12 + -2'cY_13 + -3'cY_14 + -4'cY_15 + -5'cY_16 + -6'cY_17 + -7'cY_18 + -8'cY_19 + 4'L_0 + 4'L_1 + 3'L_2 + 3'L_3 + 2'L_4 + 2'L_5 + L_6 + L_7 + L_31 + L_32 + 2'L_33 + 2'L_34 + 3'L_35 + 3'L_36 + 4'L_37 + 4'L_38 + R_14 + R_15 + 2'R_16 + 2'R_17 + 3'R_18 + 3'R_19 + 4'R_20 + 4'R_21 + 5'R_22 + 5'R_23 + 6'R_24 + 6'R_25 + 7'R_26 + 7'R_27 + 8'R_28 + 8'R_29 + 8'R_30 + 8'R_31 + 9'R_32 + 10'R_33 + 11'R_34 + 12'R_35 + 13'R_36 + 14'R_37 + 15'R_38 + 16'R_39 = 156
invariant :P_0_13 + P_3_13 + P_4_12 + P_4_13 + P_4_14 + P_5_11 + P_5_12 + 2'P_5_13 + P_5_14 + P_5_15 + P_6_10 + P_6_11 + 2'P_6_12 + 2'P_6_13 + 2'P_6_14 + P_6_15 + P_6_16 + P_7_9 + P_7_10 + 2'P_7_11 + 2'P_7_12 + 3'P_7_13 + 2'P_7_14 + 2'P_7_15 + P_7_16 + P_7_17 + P_8_8 + P_8_9 + 2'P_8_10 + 2'P_8_11 + 3'P_8_12 + 3'P_8_13 + 3'P_8_14 + 2'P_8_15 + 2'P_8_16 + P_8_17 + P_8_18 + P_9_7 + P_9_8 + 2'P_9_9 + 2'P_9_10 + 3'P_9_11 + 3'P_9_12 + 4'P_9_13 + 3'P_9_14 + 3'P_9_15 + 2'P_9_16 + 2'P_9_17 + P_9_18 + P_10_6 + P_10_7 + 2'P_10_8 + 2'P_10_9 + 3'P_10_10 + 3'P_10_11 + 4'P_10_12 + 4'P_10_13 + 4'P_10_14 + 3'P_10_15 + 3'P_10_16 + 2'P_10_17 + P_10_18 + P_11_5 + P_11_6 + 2'P_11_7 + 2'P_11_8 + 3'P_11_9 + 3'P_11_10 + 4'P_11_11 + 4'P_11_12 + 5'P_11_13 + 4'P_11_14 + 4'P_11_15 + 3'P_11_16 + 2'P_11_17 + P_11_18 + P_12_4 + P_12_5 + 2'P_12_6 + 2'P_12_7 + 3'P_12_8 + 3'P_12_9 + 4'P_12_10 + 4'P_12_11 + 5'P_12_12 + 5'P_12_13 + 5'P_12_14 + 4'P_12_15 + 3'P_12_16 + 2'P_12_17 + P_12_18 + P_13_3 + P_13_4 + 2'P_13_5 + 2'P_13_6 + 3'P_13_7 + 3'P_13_8 + 4'P_13_9 + 4'P_13_10 + 5'P_13_11 + 5'P_13_12 + 6'P_13_13 + 5'P_13_14 + 4'P_13_15 + 3'P_13_16 + 2'P_13_17 + P_13_18 + P_14_2 + P_14_3 + 2'P_14_4 + 2'P_14_5 + 3'P_14_6 + 3'P_14_7 + 4'P_14_8 + 4'P_14_9 + 5'P_14_10 + 5'P_14_11 + 6'P_14_12 + 6'P_14_13 + 5'P_14_14 + 4'P_14_15 + 3'P_14_16 + 2'P_14_17 + P_14_18 + P_15_3 + P_15_4 + 2'P_15_5 + 2'P_15_6 + 3'P_15_7 + 3'P_15_8 + 4'P_15_9 + 4'P_15_10 + 5'P_15_11 + 5'P_15_12 + 5'P_15_13 + 4'P_15_14 + 3'P_15_15 + 2'P_15_16 + P_15_17 + P_16_4 + P_16_5 + 2'P_16_6 + 2'P_16_7 + 3'P_16_8 + 3'P_16_9 + 4'P_16_10 + 4'P_16_11 + 4'P_16_12 + 4'P_16_13 + 3'P_16_14 + 2'P_16_15 + P_16_16 + P_17_5 + P_17_6 + 2'P_17_7 + 2'P_17_8 + 3'P_17_9 + 3'P_17_10 + 3'P_17_11 + 3'P_17_12 + 3'P_17_13 + 2'P_17_14 + P_17_15 + P_18_6 + P_18_7 + 2'P_18_8 + 2'P_18_9 + 2'P_18_10 + 2'P_18_11 + 2'P_18_12 + 2'P_18_13 + P_18_14 + P_19_7 + P_19_8 + P_19_9 + P_19_10 + P_19_11 + P_19_12 + P_19_13 + -1'cX_15 + -2'cX_16 + -3'cX_17 + -4'cX_18 + -5'cX_19 + -1'cY_14 + -2'cY_15 + -3'cY_16 + -4'cY_17 + -5'cY_18 + -6'cY_19 + 4'L_0 + 3'L_1 + 3'L_2 + 2'L_3 + 2'L_4 + L_5 + L_6 + L_34 + L_35 + 2'L_36 + 2'L_37 + 3'L_38 + R_17 + R_18 + 2'R_19 + 2'R_20 + 3'R_21 + 3'R_22 + 4'R_23 + 4'R_24 + 5'R_25 + 5'R_26 + 6'R_27 + 6'R_28 + 6'R_29 + 6'R_30 + 6'R_31 + 6'R_32 + 6'R_33 + 6'R_34 + 7'R_35 + 8'R_36 + 9'R_37 + 10'R_38 + 11'R_39 = 112
invariant :P_3_0 + -1'P_4_2 + -1'P_4_3 + -1'P_4_4 + -1'P_4_5 + -1'P_4_6 + -1'P_4_7 + -1'P_4_8 + -1'P_4_9 + -1'P_4_10 + -1'P_4_11 + -1'P_4_12 + -1'P_4_13 + -1'P_4_14 + -1'P_4_15 + -1'P_4_16 + -1'P_4_17 + -1'P_4_18 + -1'P_5_3 + -1'P_5_4 + -1'P_5_5 + -1'P_5_6 + -1'P_5_7 + -1'P_5_8 + -1'P_5_9 + -1'P_5_10 + -1'P_5_11 + -1'P_5_12 + -1'P_5_13 + -1'P_5_14 + -1'P_5_15 + -1'P_5_16 + -1'P_5_17 + -1'P_6_4 + -1'P_6_5 + -1'P_6_6 + -1'P_6_7 + -1'P_6_8 + -1'P_6_9 + -1'P_6_10 + -1'P_6_11 + -1'P_6_12 + -1'P_6_13 + -1'P_6_14 + -1'P_6_15 + -1'P_6_16 + -1'P_7_5 + -1'P_7_6 + -1'P_7_7 + -1'P_7_8 + -1'P_7_9 + -1'P_7_10 + -1'P_7_11 + -1'P_7_12 + -1'P_7_13 + -1'P_7_14 + -1'P_7_15 + -1'P_8_6 + -1'P_8_7 + -1'P_8_8 + -1'P_8_9 + -1'P_8_10 + -1'P_8_11 + -1'P_8_12 + -1'P_8_13 + -1'P_8_14 + -1'P_9_7 + -1'P_9_8 + -1'P_9_9 + -1'P_9_10 + -1'P_9_11 + -1'P_9_12 + -1'P_9_13 + -1'P_10_8 + -1'P_10_9 + -1'P_10_10 + -1'P_10_11 + -1'P_10_12 + -1'P_11_9 + -1'P_11_10 + -1'P_11_11 + -1'P_12_10 + P_13_10 + P_14_9 + P_14_10 + P_14_11 + P_15_8 + P_15_9 + P_15_10 + P_15_11 + P_15_12 + P_16_7 + P_16_8 + P_16_9 + P_16_10 + P_16_11 + P_16_12 + P_16_13 + P_17_6 + P_17_7 + P_17_8 + P_17_9 + P_17_10 + P_17_11 + P_17_12 + P_17_13 + P_17_14 + P_18_5 + P_18_6 + P_18_7 + P_18_8 + P_18_9 + P_18_10 + P_18_11 + P_18_12 + P_18_13 + P_18_14 + P_18_15 + P_19_4 + P_19_5 + P_19_6 + P_19_7 + P_19_8 + P_19_9 + P_19_10 + P_19_11 + P_19_12 + P_19_13 + P_19_14 + P_19_15 + P_19_16 + -1'cX_4 + -1'cX_5 + -1'cX_6 + -1'cX_7 + -1'cX_8 + -1'cX_9 + -1'cX_10 + -1'cX_11 + -1'cX_12 + -1'cX_13 + -1'cX_14 + -1'cX_15 + -1'cX_16 + -1'cX_17 + -1'cX_18 + -1'cX_19 + L_22 + L_23 + L_24 + L_25 + L_26 + L_27 + L_28 + L_29 + L_30 + L_31 + L_32 + L_33 + L_34 + L_35 + L_36 + L_37 + L_38 + R_24 + R_25 + R_26 + R_27 + R_28 + R_29 + R_30 + R_31 + R_32 + R_33 + R_34 + R_35 + R_36 + R_37 + R_38 + R_39 = 17
invariant :P_13_1 + P_13_2 + P_13_3 + P_13_4 + P_13_5 + P_13_6 + P_13_7 + P_13_8 + P_13_9 + P_13_10 + P_13_11 + P_13_12 + P_13_13 + P_13_14 + P_13_15 + P_13_16 + P_13_17 + P_13_18 + P_14_2 + P_14_3 + P_14_4 + P_14_5 + P_14_6 + P_14_7 + P_14_8 + P_14_9 + P_14_10 + P_14_11 + P_14_12 + P_14_13 + P_14_14 + P_14_15 + P_14_16 + P_14_17 + P_15_3 + P_15_4 + P_15_5 + P_15_6 + P_15_7 + P_15_8 + P_15_9 + P_15_10 + P_15_11 + P_15_12 + P_15_13 + P_15_14 + P_15_15 + P_15_16 + P_16_4 + P_16_5 + P_16_6 + P_16_7 + P_16_8 + P_16_9 + P_16_10 + P_16_11 + P_16_12 + P_16_13 + P_16_14 + P_16_15 + P_17_5 + P_17_6 + P_17_7 + P_17_8 + P_17_9 + P_17_10 + P_17_11 + P_17_12 + P_17_13 + P_17_14 + P_18_6 + P_18_7 + P_18_8 + P_18_9 + P_18_10 + P_18_11 + P_18_12 + P_18_13 + P_19_7 + P_19_8 + P_19_9 + P_19_10 + P_19_11 + P_19_12 + cX_13 + cX_14 + cX_15 + cX_16 + cX_17 + cX_18 + cX_19 + -1'L_32 + -1'L_33 + -1'L_34 + -1'L_35 + -1'L_36 + -1'L_37 + -1'L_38 + -1'R_33 + -1'R_34 + -1'R_35 + -1'R_36 + -1'R_37 + -1'R_38 + -1'R_39 = -7
invariant :P_8_0 + -1'P_9_2 + -1'P_9_3 + -1'P_9_4 + -1'P_9_5 + -1'P_9_6 + -1'P_9_7 + -1'P_9_8 + -1'P_9_9 + -1'P_9_10 + -1'P_9_11 + -1'P_9_12 + -1'P_9_13 + -1'P_9_14 + -1'P_9_15 + -1'P_9_16 + -1'P_9_17 + -1'P_9_18 + -1'P_10_3 + -1'P_10_4 + -1'P_10_5 + -1'P_10_6 + -1'P_10_7 + -1'P_10_8 + -1'P_10_9 + -1'P_10_10 + -1'P_10_11 + -1'P_10_12 + -1'P_10_13 + -1'P_10_14 + -1'P_10_15 + -1'P_10_16 + -1'P_10_17 + -1'P_11_4 + -1'P_11_5 + -1'P_11_6 + -1'P_11_7 + -1'P_11_8 + -1'P_11_9 + -1'P_11_10 + -1'P_11_11 + -1'P_11_12 + -1'P_11_13 + -1'P_11_14 + -1'P_11_15 + -1'P_11_16 + -1'P_12_5 + -1'P_12_6 + -1'P_12_7 + -1'P_12_8 + -1'P_12_9 + -1'P_12_10 + -1'P_12_11 + -1'P_12_12 + -1'P_12_13 + -1'P_12_14 + -1'P_12_15 + -1'P_13_6 + -1'P_13_7 + -1'P_13_8 + -1'P_13_9 + -1'P_13_10 + -1'P_13_11 + -1'P_13_12 + -1'P_13_13 + -1'P_13_14 + -1'P_14_7 + -1'P_14_8 + -1'P_14_9 + -1'P_14_10 + -1'P_14_11 + -1'P_14_12 + -1'P_14_13 + -1'P_15_8 + -1'P_15_9 + -1'P_15_10 + -1'P_15_11 + -1'P_15_12 + -1'P_16_9 + -1'P_16_10 + -1'P_16_11 + -1'P_17_10 + P_18_10 + P_19_9 + P_19_10 + P_19_11 + -1'cX_9 + -1'cX_10 + -1'cX_11 + -1'cX_12 + -1'cX_13 + -1'cX_14 + -1'cX_15 + -1'cX_16 + -1'cX_17 + -1'cX_18 + -1'cX_19 + L_27 + L_28 + L_29 + L_30 + L_31 + L_32 + L_33 + L_34 + L_35 + L_36 + L_37 + L_38 + R_29 + R_30 + R_31 + R_32 + R_33 + R_34 + R_35 + R_36 + R_37 + R_38 + R_39 = 12
invariant :P_2_14 + P_3_13 + P_3_14 + P_3_15 + P_4_12 + P_4_13 + 2'P_4_14 + P_4_15 + P_4_16 + P_5_11 + P_5_12 + 2'P_5_13 + 2'P_5_14 + 2'P_5_15 + P_5_16 + P_5_17 + P_6_10 + P_6_11 + 2'P_6_12 + 2'P_6_13 + 3'P_6_14 + 2'P_6_15 + 2'P_6_16 + P_6_17 + P_6_18 + P_7_9 + P_7_10 + 2'P_7_11 + 2'P_7_12 + 3'P_7_13 + 3'P_7_14 + 3'P_7_15 + 2'P_7_16 + 2'P_7_17 + P_7_18 + P_8_8 + P_8_9 + 2'P_8_10 + 2'P_8_11 + 3'P_8_12 + 3'P_8_13 + 4'P_8_14 + 3'P_8_15 + 3'P_8_16 + 2'P_8_17 + P_8_18 + P_9_7 + P_9_8 + 2'P_9_9 + 2'P_9_10 + 3'P_9_11 + 3'P_9_12 + 4'P_9_13 + 4'P_9_14 + 4'P_9_15 + 3'P_9_16 + 2'P_9_17 + P_9_18 + P_10_6 + P_10_7 + 2'P_10_8 + 2'P_10_9 + 3'P_10_10 + 3'P_10_11 + 4'P_10_12 + 4'P_10_13 + 5'P_10_14 + 4'P_10_15 + 3'P_10_16 + 2'P_10_17 + P_10_18 + P_11_5 + P_11_6 + 2'P_11_7 + 2'P_11_8 + 3'P_11_9 + 3'P_11_10 + 4'P_11_11 + 4'P_11_12 + 5'P_11_13 + 5'P_11_14 + 4'P_11_15 + 3'P_11_16 + 2'P_11_17 + P_11_18 + P_12_4 + P_12_5 + 2'P_12_6 + 2'P_12_7 + 3'P_12_8 + 3'P_12_9 + 4'P_12_10 + 4'P_12_11 + 5'P_12_12 + 5'P_12_13 + 5'P_12_14 + 4'P_12_15 + 3'P_12_16 + 2'P_12_17 + P_12_18 + P_13_3 + P_13_4 + 2'P_13_5 + 2'P_13_6 + 3'P_13_7 + 3'P_13_8 + 4'P_13_9 + 4'P_13_10 + 5'P_13_11 + 5'P_13_12 + 5'P_13_13 + 5'P_13_14 + 4'P_13_15 + 3'P_13_16 + 2'P_13_17 + P_13_18 + P_14_2 + P_14_3 + 2'P_14_4 + 2'P_14_5 + 3'P_14_6 + 3'P_14_7 + 4'P_14_8 + 4'P_14_9 + 5'P_14_10 + 5'P_14_11 + 5'P_14_12 + 5'P_14_13 + 5'P_14_14 + 4'P_14_15 + 3'P_14_16 + 2'P_14_17 + P_14_18 + P_15_3 + P_15_4 + 2'P_15_5 + 2'P_15_6 + 3'P_15_7 + 3'P_15_8 + 4'P_15_9 + 4'P_15_10 + 4'P_15_11 + 4'P_15_12 + 4'P_15_13 + 4'P_15_14 + 3'P_15_15 + 2'P_15_16 + P_15_17 + P_16_4 + P_16_5 + 2'P_16_6 + 2'P_16_7 + 3'P_16_8 + 3'P_16_9 + 3'P_16_10 + 3'P_16_11 + 3'P_16_12 + 3'P_16_13 + 3'P_16_14 + 2'P_16_15 + P_16_16 + P_17_5 + P_17_6 + 2'P_17_7 + 2'P_17_8 + 2'P_17_9 + 2'P_17_10 + 2'P_17_11 + 2'P_17_12 + 2'P_17_13 + 2'P_17_14 + P_17_15 + P_18_6 + P_18_7 + P_18_8 + P_18_9 + P_18_10 + P_18_11 + P_18_12 + P_18_13 + P_18_14 + -1'cX_15 + -2'cX_16 + -3'cX_17 + -4'cX_18 + -5'cX_19 + -1'cY_15 + -2'cY_16 + -3'cY_17 + -4'cY_18 + -5'cY_19 + 3'L_0 + 2'L_1 + 2'L_2 + L_3 + L_4 + L_34 + L_35 + 2'L_36 + 2'L_37 + 3'L_38 + R_17 + R_18 + 2'R_19 + 2'R_20 + 3'R_21 + 3'R_22 + 4'R_23 + 4'R_24 + 5'R_25 + 5'R_26 + 5'R_27 + 5'R_28 + 5'R_29 + 5'R_30 + 5'R_31 + 5'R_32 + 5'R_33 + 5'R_34 + 6'R_35 + 7'R_36 + 8'R_37 + 9'R_38 + 10'R_39 = 98
invariant :cY_0 + -1'cY_2 + -2'cY_3 + -3'cY_4 + -4'cY_5 + -5'cY_6 + -6'cY_7 + -7'cY_8 + -8'cY_9 + -9'cY_10 + -10'cY_11 + -11'cY_12 + -12'cY_13 + -13'cY_14 + -14'cY_15 + -15'cY_16 + -16'cY_17 + -17'cY_18 + -18'cY_19 + 9'L_0 + 9'L_1 + 8'L_2 + 8'L_3 + 7'L_4 + 7'L_5 + 6'L_6 + 6'L_7 + 5'L_8 + 5'L_9 + 4'L_10 + 4'L_11 + 3'L_12 + 3'L_13 + 2'L_14 + 2'L_15 + L_16 + L_17 + -1'L_20 + -1'L_21 + -2'L_22 + -2'L_23 + -3'L_24 + -3'L_25 + -4'L_26 + -4'L_27 + -5'L_28 + -5'L_29 + -6'L_30 + -6'L_31 + -7'L_32 + -7'L_33 + -8'L_34 + -8'L_35 + -9'L_36 + -9'L_37 + -10'L_38 + -1'R_1 + R_4 + R_5 + 2'R_6 + 2'R_7 + 3'R_8 + 3'R_9 + 4'R_10 + 4'R_11 + 5'R_12 + 5'R_13 + 6'R_14 + 6'R_15 + 7'R_16 + 7'R_17 + 8'R_18 + 8'R_19 + 9'R_20 + 9'R_21 + 10'R_22 + 10'R_23 + 11'R_24 + 11'R_25 + 12'R_26 + 12'R_27 + 13'R_28 + 13'R_29 + 14'R_30 + 14'R_31 + 15'R_32 + 15'R_33 + 16'R_34 + 16'R_35 + 17'R_36 + 17'R_37 + 18'R_38 + 18'R_39 = 161
invariant :P_11_0 + -1'P_12_2 + -1'P_12_3 + -1'P_12_4 + -1'P_12_5 + -1'P_12_6 + -1'P_12_7 + -1'P_12_8 + -1'P_12_9 + -1'P_12_10 + -1'P_12_11 + -1'P_12_12 + -1'P_12_13 + -1'P_12_14 + -1'P_12_15 + -1'P_12_16 + -1'P_12_17 + -1'P_12_18 + -1'P_13_3 + -1'P_13_4 + -1'P_13_5 + -1'P_13_6 + -1'P_13_7 + -1'P_13_8 + -1'P_13_9 + -1'P_13_10 + -1'P_13_11 + -1'P_13_12 + -1'P_13_13 + -1'P_13_14 + -1'P_13_15 + -1'P_13_16 + -1'P_13_17 + -1'P_14_4 + -1'P_14_5 + -1'P_14_6 + -1'P_14_7 + -1'P_14_8 + -1'P_14_9 + -1'P_14_10 + -1'P_14_11 + -1'P_14_12 + -1'P_14_13 + -1'P_14_14 + -1'P_14_15 + -1'P_14_16 + -1'P_15_5 + -1'P_15_6 + -1'P_15_7 + -1'P_15_8 + -1'P_15_9 + -1'P_15_10 + -1'P_15_11 + -1'P_15_12 + -1'P_15_13 + -1'P_15_14 + -1'P_15_15 + -1'P_16_6 + -1'P_16_7 + -1'P_16_8 + -1'P_16_9 + -1'P_16_10 + -1'P_16_11 + -1'P_16_12 + -1'P_16_13 + -1'P_16_14 + -1'P_17_7 + -1'P_17_8 + -1'P_17_9 + -1'P_17_10 + -1'P_17_11 + -1'P_17_12 + -1'P_17_13 + -1'P_18_8 + -1'P_18_9 + -1'P_18_10 + -1'P_18_11 + -1'P_18_12 + -1'P_19_9 + -1'P_19_10 + -1'P_19_11 + -1'cX_12 + -1'cX_13 + -1'cX_14 + -1'cX_15 + -1'cX_16 + -1'cX_17 + -1'cX_18 + -1'cX_19 + L_30 + L_31 + L_32 + L_33 + L_34 + L_35 + L_36 + L_37 + L_38 + R_32 + R_33 + R_34 + R_35 + R_36 + R_37 + R_38 + R_39 = 9
invariant :P_16_19 + P_17_18 + P_18_17 + P_19_16 + R_36 = 1
invariant :P_17_0 + -1'P_18_2 + -1'P_18_3 + -1'P_18_4 + -1'P_18_5 + -1'P_18_6 + -1'P_18_7 + -1'P_18_8 + -1'P_18_9 + -1'P_18_10 + -1'P_18_11 + -1'P_18_12 + -1'P_18_13 + -1'P_18_14 + -1'P_18_15 + -1'P_18_16 + -1'P_18_17 + -1'P_18_18 + -1'P_19_3 + -1'P_19_4 + -1'P_19_5 + -1'P_19_6 + -1'P_19_7 + -1'P_19_8 + -1'P_19_9 + -1'P_19_10 + -1'P_19_11 + -1'P_19_12 + -1'P_19_13 + -1'P_19_14 + -1'P_19_15 + -1'P_19_16 + -1'P_19_17 + -1'cX_18 + -1'cX_19 + L_36 + L_37 + L_38 + R_38 + R_39 = 3
invariant :P_1_18 + -1'P_3_17 + -1'P_3_18 + -1'P_4_16 + -2'P_4_17 + -1'P_4_18 + -1'P_5_15 + -2'P_5_16 + -2'P_5_17 + -1'P_5_18 + -1'P_6_14 + -2'P_6_15 + -2'P_6_16 + -2'P_6_17 + -1'P_6_18 + -1'P_7_13 + -2'P_7_14 + -2'P_7_15 + -2'P_7_16 + -2'P_7_17 + -1'P_7_18 + -1'P_8_12 + -2'P_8_13 + -2'P_8_14 + -2'P_8_15 + -2'P_8_16 + -2'P_8_17 + -1'P_8_18 + -1'P_9_11 + -2'P_9_12 + -2'P_9_13 + -2'P_9_14 + -2'P_9_15 + -2'P_9_16 + -2'P_9_17 + -1'P_9_18 + -1'P_10_10 + -2'P_10_11 + -2'P_10_12 + -2'P_10_13 + -2'P_10_14 + -2'P_10_15 + -2'P_10_16 + -2'P_10_17 + -1'P_10_18 + -1'P_11_9 + -2'P_11_10 + -2'P_11_11 + -2'P_11_12 + -2'P_11_13 + -2'P_11_14 + -2'P_11_15 + -2'P_11_16 + -2'P_11_17 + -1'P_11_18 + -1'P_12_8 + -2'P_12_9 + -2'P_12_10 + -2'P_12_11 + -2'P_12_12 + -2'P_12_13 + -2'P_12_14 + -2'P_12_15 + -2'P_12_16 + -2'P_12_17 + -1'P_12_18 + -1'P_13_7 + -2'P_13_8 + -2'P_13_9 + -2'P_13_10 + -2'P_13_11 + -2'P_13_12 + -2'P_13_13 + -2'P_13_14 + -2'P_13_15 + -2'P_13_16 + -2'P_13_17 + -1'P_13_18 + -1'P_14_6 + -2'P_14_7 + -2'P_14_8 + -2'P_14_9 + -2'P_14_10 + -2'P_14_11 + -2'P_14_12 + -2'P_14_13 + -2'P_14_14 + -2'P_14_15 + -2'P_14_16 + -2'P_14_17 + -1'P_14_18 + -1'P_15_5 + -2'P_15_6 + -2'P_15_7 + -2'P_15_8 + -2'P_15_9 + -2'P_15_10 + -2'P_15_11 + -2'P_15_12 + -2'P_15_13 + -2'P_15_14 + -2'P_15_15 + -2'P_15_16 + -2'P_15_17 + -1'P_15_18 + -1'P_16_4 + -2'P_16_5 + -2'P_16_6 + -2'P_16_7 + -2'P_16_8 + -2'P_16_9 + -2'P_16_10 + -2'P_16_11 + -2'P_16_12 + -2'P_16_13 + -2'P_16_14 + -2'P_16_15 + -2'P_16_16 + -2'P_16_17 + -1'P_16_18 + -1'P_17_3 + -2'P_17_4 + -2'P_17_5 + -2'P_17_6 + -2'P_17_7 + -2'P_17_8 + -2'P_17_9 + -2'P_17_10 + -2'P_17_11 + -2'P_17_12 + -2'P_17_13 + -2'P_17_14 + -2'P_17_15 + -2'P_17_16 + -2'P_17_17 + -1'P_17_18 + -1'P_18_2 + -2'P_18_3 + -2'P_18_4 + -2'P_18_5 + -2'P_18_6 + -2'P_18_7 + -2'P_18_8 + -2'P_18_9 + -2'P_18_10 + -2'P_18_11 + -2'P_18_12 + -2'P_18_13 + -2'P_18_14 + -2'P_18_15 + -2'P_18_16 + -2'P_18_17 + -1'P_18_18 + -1'P_19_2 + -1'P_19_3 + -1'P_19_4 + -1'P_19_5 + -1'P_19_6 + -1'P_19_7 + -1'P_19_8 + -1'P_19_9 + -1'P_19_10 + -1'P_19_11 + -1'P_19_12 + -1'P_19_13 + -1'P_19_14 + -1'P_19_15 + -1'P_19_16 + -1'P_19_17 + cX_19 + cY_18 + 2'cY_19 + -2'L_0 + -1'L_1 + -1'L_38 + -1'R_21 + -2'R_22 + -2'R_23 + -2'R_24 + -2'R_25 + -2'R_26 + -2'R_27 + -2'R_28 + -2'R_29 + -2'R_30 + -2'R_31 + -2'R_32 + -2'R_33 + -2'R_34 + -2'R_35 + -2'R_36 + -2'R_37 + -2'R_38 + -3'R_39 = -38
invariant :P_15_1 + P_15_2 + P_15_3 + P_15_4 + P_15_5 + P_15_6 + P_15_7 + P_15_8 + P_15_9 + P_15_10 + P_15_11 + P_15_12 + P_15_13 + P_15_14 + P_15_15 + P_15_16 + P_15_17 + P_15_18 + P_16_2 + P_16_3 + P_16_4 + P_16_5 + P_16_6 + P_16_7 + P_16_8 + P_16_9 + P_16_10 + P_16_11 + P_16_12 + P_16_13 + P_16_14 + P_16_15 + P_16_16 + P_16_17 + P_17_3 + P_17_4 + P_17_5 + P_17_6 + P_17_7 + P_17_8 + P_17_9 + P_17_10 + P_17_11 + P_17_12 + P_17_13 + P_17_14 + P_17_15 + P_17_16 + P_18_4 + P_18_5 + P_18_6 + P_18_7 + P_18_8 + P_18_9 + P_18_10 + P_18_11 + P_18_12 + P_18_13 + P_18_14 + P_18_15 + P_19_5 + P_19_6 + P_19_7 + P_19_8 + P_19_9 + P_19_10 + P_19_11 + P_19_12 + P_19_13 + P_19_14 + cX_15 + cX_16 + cX_17 + cX_18 + cX_19 + -1'L_34 + -1'L_35 + -1'L_36 + -1'L_37 + -1'L_38 + -1'R_35 + -1'R_36 + -1'R_37 + -1'R_38 + -1'R_39 = -5
invariant :P_14_1 + P_14_2 + P_14_3 + P_14_4 + P_14_5 + P_14_6 + P_14_7 + P_14_8 + P_14_9 + P_14_10 + P_14_11 + P_14_12 + P_14_13 + P_14_14 + P_14_15 + P_14_16 + P_14_17 + P_14_18 + P_15_2 + P_15_3 + P_15_4 + P_15_5 + P_15_6 + P_15_7 + P_15_8 + P_15_9 + P_15_10 + P_15_11 + P_15_12 + P_15_13 + P_15_14 + P_15_15 + P_15_16 + P_15_17 + P_16_3 + P_16_4 + P_16_5 + P_16_6 + P_16_7 + P_16_8 + P_16_9 + P_16_10 + P_16_11 + P_16_12 + P_16_13 + P_16_14 + P_16_15 + P_16_16 + P_17_4 + P_17_5 + P_17_6 + P_17_7 + P_17_8 + P_17_9 + P_17_10 + P_17_11 + P_17_12 + P_17_13 + P_17_14 + P_17_15 + P_18_5 + P_18_6 + P_18_7 + P_18_8 + P_18_9 + P_18_10 + P_18_11 + P_18_12 + P_18_13 + P_18_14 + P_19_6 + P_19_7 + P_19_8 + P_19_9 + P_19_10 + P_19_11 + P_19_12 + P_19_13 + cX_14 + cX_15 + cX_16 + cX_17 + cX_18 + cX_19 + -1'L_33 + -1'L_34 + -1'L_35 + -1'L_36 + -1'L_37 + -1'L_38 + -1'R_34 + -1'R_35 + -1'R_36 + -1'R_37 + -1'R_38 + -1'R_39 = -6
invariant :P_16_1 + P_16_2 + P_16_3 + P_16_4 + P_16_5 + P_16_6 + P_16_7 + P_16_8 + P_16_9 + P_16_10 + P_16_11 + P_16_12 + P_16_13 + P_16_14 + P_16_15 + P_16_16 + P_16_17 + P_16_18 + P_17_2 + P_17_3 + P_17_4 + P_17_5 + P_17_6 + P_17_7 + P_17_8 + P_17_9 + P_17_10 + P_17_11 + P_17_12 + P_17_13 + P_17_14 + P_17_15 + P_17_16 + P_17_17 + P_18_3 + P_18_4 + P_18_5 + P_18_6 + P_18_7 + P_18_8 + P_18_9 + P_18_10 + P_18_11 + P_18_12 + P_18_13 + P_18_14 + P_18_15 + P_18_16 + P_19_4 + P_19_5 + P_19_6 + P_19_7 + P_19_8 + P_19_9 + P_19_10 + P_19_11 + P_19_12 + P_19_13 + P_19_14 + P_19_15 + cX_16 + cX_17 + cX_18 + cX_19 + -1'L_35 + -1'L_36 + -1'L_37 + -1'L_38 + -1'R_36 + -1'R_37 + -1'R_38 + -1'R_39 = -4
invariant :P_13_19 + P_14_18 + P_15_17 + P_16_16 + P_17_15 + P_18_14 + P_19_13 + R_33 = 1
invariant :P_2_3 + P_3_2 + P_3_3 + P_3_4 + P_4_3 + -1'P_4_6 + -1'P_4_7 + -1'P_4_8 + -1'P_4_9 + -1'P_4_10 + -1'P_4_11 + -1'P_4_12 + -1'P_4_13 + -1'P_4_14 + -1'P_4_15 + -1'P_4_16 + -1'P_4_17 + -1'P_4_18 + -1'P_5_5 + -1'P_5_6 + -2'P_5_7 + -2'P_5_8 + -2'P_5_9 + -2'P_5_10 + -2'P_5_11 + -2'P_5_12 + -2'P_5_13 + -2'P_5_14 + -2'P_5_15 + -2'P_5_16 + -2'P_5_17 + -1'P_5_18 + -1'P_6_4 + -1'P_6_5 + -2'P_6_6 + -2'P_6_7 + -3'P_6_8 + -3'P_6_9 + -3'P_6_10 + -3'P_6_11 + -3'P_6_12 + -3'P_6_13 + -3'P_6_14 + -3'P_6_15 + -3'P_6_16 + -2'P_6_17 + -1'P_6_18 + -1'P_7_4 + -2'P_7_5 + -2'P_7_6 + -3'P_7_7 + -3'P_7_8 + -4'P_7_9 + -4'P_7_10 + -4'P_7_11 + -4'P_7_12 + -4'P_7_13 + -4'P_7_14 + -4'P_7_15 + -3'P_7_16 + -2'P_7_17 + -1'P_7_18 + -1'P_8_4 + -2'P_8_5 + -3'P_8_6 + -3'P_8_7 + -4'P_8_8 + -4'P_8_9 + -5'P_8_10 + -5'P_8_11 + -5'P_8_12 + -5'P_8_13 + -5'P_8_14 + -4'P_8_15 + -3'P_8_16 + -2'P_8_17 + -1'P_8_18 + -1'P_9_4 + -2'P_9_5 + -3'P_9_6 + -4'P_9_7 + -4'P_9_8 + -5'P_9_9 + -5'P_9_10 + -6'P_9_11 + -6'P_9_12 + -6'P_9_13 + -5'P_9_14 + -4'P_9_15 + -3'P_9_16 + -2'P_9_17 + -1'P_9_18 + -1'P_10_4 + -2'P_10_5 + -3'P_10_6 + -4'P_10_7 + -5'P_10_8 + -5'P_10_9 + -6'P_10_10 + -6'P_10_11 + -7'P_10_12 + -6'P_10_13 + -5'P_10_14 + -4'P_10_15 + -3'P_10_16 + -2'P_10_17 + -1'P_10_18 + -1'P_11_4 + -2'P_11_5 + -3'P_11_6 + -4'P_11_7 + -5'P_11_8 + -6'P_11_9 + -6'P_11_10 + -7'P_11_11 + -6'P_11_12 + -6'P_11_13 + -5'P_11_14 + -4'P_11_15 + -3'P_11_16 + -2'P_11_17 + -1'P_11_18 + -1'P_12_4 + -2'P_12_5 + -3'P_12_6 + -4'P_12_7 + -5'P_12_8 + -6'P_12_9 + -7'P_12_10 + -6'P_12_11 + -6'P_12_12 + -5'P_12_13 + -5'P_12_14 + -4'P_12_15 + -3'P_12_16 + -2'P_12_17 + -1'P_12_18 + -1'P_13_4 + -2'P_13_5 + -3'P_13_6 + -4'P_13_7 + -5'P_13_8 + -6'P_13_9 + -6'P_13_10 + -6'P_13_11 + -5'P_13_12 + -5'P_13_13 + -4'P_13_14 + -4'P_13_15 + -3'P_13_16 + -2'P_13_17 + -1'P_13_18 + -1'P_14_4 + -2'P_14_5 + -3'P_14_6 + -4'P_14_7 + -5'P_14_8 + -5'P_14_9 + -5'P_14_10 + -5'P_14_11 + -5'P_14_12 + -4'P_14_13 + -4'P_14_14 + -3'P_14_15 + -3'P_14_16 + -2'P_14_17 + -1'P_14_18 + -1'P_15_4 + -2'P_15_5 + -3'P_15_6 + -4'P_15_7 + -4'P_15_8 + -4'P_15_9 + -4'P_15_10 + -4'P_15_11 + -4'P_15_12 + -4'P_15_13 + -3'P_15_14 + -3'P_15_15 + -2'P_15_16 + -2'P_15_17 + -1'P_15_18 + -1'P_16_4 + -2'P_16_5 + -3'P_16_6 + -3'P_16_7 + -3'P_16_8 + -3'P_16_9 + -3'P_16_10 + -3'P_16_11 + -3'P_16_12 + -3'P_16_13 + -3'P_16_14 + -2'P_16_15 + -2'P_16_16 + -1'P_16_17 + -1'P_16_18 + -1'P_17_4 + -2'P_17_5 + -2'P_17_6 + -2'P_17_7 + -2'P_17_8 + -2'P_17_9 + -2'P_17_10 + -2'P_17_11 + -2'P_17_12 + -2'P_17_13 + -2'P_17_14 + -2'P_17_15 + -1'P_17_16 + -1'P_17_17 + -1'P_18_4 + -1'P_18_5 + -1'P_18_6 + -1'P_18_7 + -1'P_18_8 + -1'P_18_9 + -1'P_18_10 + -1'P_18_11 + -1'P_18_12 + -1'P_18_13 + -1'P_18_14 + -1'P_18_15 + -1'P_18_16 + -1'cX_4 + -2'cX_5 + -3'cX_6 + -4'cX_7 + -5'cX_8 + -6'cX_9 + -7'cX_10 + -8'cX_11 + -9'cX_12 + -10'cX_13 + -11'cX_14 + -12'cX_15 + -13'cX_16 + -14'cX_17 + -15'cX_18 + -16'cX_19 + -1'cY_4 + -2'cY_5 + -3'cY_6 + -4'cY_7 + -5'cY_8 + -6'cY_9 + -7'cY_10 + -8'cY_11 + -9'cY_12 + -10'cY_13 + -11'cY_14 + -12'cY_15 + -13'cY_16 + -14'cY_17 + -15'cY_18 + -16'cY_19 + 8'L_0 + 8'L_1 + 7'L_2 + 7'L_3 + 6'L_4 + 6'L_5 + 5'L_6 + 5'L_7 + 4'L_8 + 4'L_9 + 3'L_10 + 3'L_11 + 2'L_12 + 2'L_13 + L_14 + L_15 + L_23 + L_24 + 2'L_25 + 2'L_26 + 3'L_27 + 3'L_28 + 4'L_29 + 4'L_30 + 5'L_31 + 5'L_32 + 6'L_33 + 6'L_34 + 7'L_35 + 7'L_36 + 8'L_37 + 8'L_38 + R_6 + R_7 + 2'R_8 + 2'R_9 + 3'R_10 + 3'R_11 + 4'R_12 + 4'R_13 + 5'R_14 + 5'R_15 + 6'R_16 + 6'R_17 + 7'R_18 + 7'R_19 + 8'R_20 + 8'R_21 + 9'R_22 + 9'R_23 + 11'R_24 + 12'R_25 + 14'R_26 + 15'R_27 + 17'R_28 + 18'R_29 + 20'R_30 + 21'R_31 + 23'R_32 + 24'R_33 + 26'R_34 + 27'R_35 + 29'R_36 + 30'R_37 + 31'R_38 + 32'R_39 = 312
invariant :P_0_16 + P_3_16 + P_4_15 + P_4_16 + P_4_17 + P_5_14 + P_5_15 + 2'P_5_16 + P_5_17 + P_5_18 + P_6_13 + P_6_14 + 2'P_6_15 + 2'P_6_16 + 2'P_6_17 + P_6_18 + P_7_12 + P_7_13 + 2'P_7_14 + 2'P_7_15 + 3'P_7_16 + 2'P_7_17 + P_7_18 + P_8_11 + P_8_12 + 2'P_8_13 + 2'P_8_14 + 3'P_8_15 + 3'P_8_16 + 2'P_8_17 + P_8_18 + P_9_10 + P_9_11 + 2'P_9_12 + 2'P_9_13 + 3'P_9_14 + 3'P_9_15 + 3'P_9_16 + 2'P_9_17 + P_9_18 + P_10_9 + P_10_10 + 2'P_10_11 + 2'P_10_12 + 3'P_10_13 + 3'P_10_14 + 3'P_10_15 + 3'P_10_16 + 2'P_10_17 + P_10_18 + P_11_8 + P_11_9 + 2'P_11_10 + 2'P_11_11 + 3'P_11_12 + 3'P_11_13 + 3'P_11_14 + 3'P_11_15 + 3'P_11_16 + 2'P_11_17 + P_11_18 + P_12_7 + P_12_8 + 2'P_12_9 + 2'P_12_10 + 3'P_12_11 + 3'P_12_12 + 3'P_12_13 + 3'P_12_14 + 3'P_12_15 + 3'P_12_16 + 2'P_12_17 + P_12_18 + P_13_6 + P_13_7 + 2'P_13_8 + 2'P_13_9 + 3'P_13_10 + 3'P_13_11 + 3'P_13_12 + 3'P_13_13 + 3'P_13_14 + 3'P_13_15 + 3'P_13_16 + 2'P_13_17 + P_13_18 + P_14_5 + P_14_6 + 2'P_14_7 + 2'P_14_8 + 3'P_14_9 + 3'P_14_10 + 3'P_14_11 + 3'P_14_12 + 3'P_14_13 + 3'P_14_14 + 3'P_14_15 + 3'P_14_16 + 2'P_14_17 + P_14_18 + P_15_4 + P_15_5 + 2'P_15_6 + 2'P_15_7 + 3'P_15_8 + 3'P_15_9 + 3'P_15_10 + 3'P_15_11 + 3'P_15_12 + 3'P_15_13 + 3'P_15_14 + 3'P_15_15 + 3'P_15_16 + 2'P_15_17 + P_15_18 + P_16_3 + P_16_4 + 2'P_16_5 + 2'P_16_6 + 3'P_16_7 + 3'P_16_8 + 3'P_16_9 + 3'P_16_10 + 3'P_16_11 + 3'P_16_12 + 3'P_16_13 + 3'P_16_14 + 3'P_16_15 + 3'P_16_16 + 2'P_16_17 + P_16_18 + P_17_2 + P_17_3 + 2'P_17_4 + 2'P_17_5 + 3'P_17_6 + 3'P_17_7 + 3'P_17_8 + 3'P_17_9 + 3'P_17_10 + 3'P_17_11 + 3'P_17_12 + 3'P_17_13 + 3'P_17_14 + 3'P_17_15 + 3'P_17_16 + 2'P_17_17 + P_17_18 + P_18_3 + P_18_4 + 2'P_18_5 + 2'P_18_6 + 2'P_18_7 + 2'P_18_8 + 2'P_18_9 + 2'P_18_10 + 2'P_18_11 + 2'P_18_12 + 2'P_18_13 + 2'P_18_14 + 2'P_18_15 + 2'P_18_16 + P_18_17 + P_19_4 + P_19_5 + P_19_6 + P_19_7 + P_19_8 + P_19_9 + P_19_10 + P_19_11 + P_19_12 + P_19_13 + P_19_14 + P_19_15 + P_19_16 + -1'cX_18 + -2'cX_19 + -1'cY_17 + -2'cY_18 + -3'cY_19 + 2'L_0 + 2'L_1 + L_2 + L_3 + L_37 + L_38 + R_20 + R_21 + 2'R_22 + 2'R_23 + 3'R_24 + 3'R_25 + 3'R_26 + 3'R_27 + 3'R_28 + 3'R_29 + 3'R_30 + 3'R_31 + 3'R_32 + 3'R_33 + 3'R_34 + 3'R_35 + 3'R_36 + 3'R_37 + 4'R_38 + 5'R_39 = 56
invariant :P_0_4 + P_3_4 + P_4_3 + P_4_4 + P_4_5 + P_5_2 + P_5_3 + 2'P_5_4 + P_5_5 + P_5_6 + P_6_3 + P_6_4 + P_6_5 + -1'P_6_8 + -1'P_6_9 + -1'P_6_10 + -1'P_6_11 + -1'P_6_12 + -1'P_6_13 + -1'P_6_14 + -1'P_6_15 + -1'P_6_16 + -1'P_6_17 + -1'P_6_18 + P_7_4 + -1'P_7_7 + -1'P_7_8 + -2'P_7_9 + -2'P_7_10 + -2'P_7_11 + -2'P_7_12 + -2'P_7_13 + -2'P_7_14 + -2'P_7_15 + -2'P_7_16 + -2'P_7_17 + -1'P_7_18 + -1'P_8_6 + -1'P_8_7 + -2'P_8_8 + -2'P_8_9 + -3'P_8_10 + -3'P_8_11 + -3'P_8_12 + -3'P_8_13 + -3'P_8_14 + -3'P_8_15 + -3'P_8_16 + -2'P_8_17 + -1'P_8_18 + -1'P_9_5 + -1'P_9_6 + -2'P_9_7 + -2'P_9_8 + -3'P_9_9 + -3'P_9_10 + -4'P_9_11 + -4'P_9_12 + -4'P_9_13 + -4'P_9_14 + -4'P_9_15 + -3'P_9_16 + -2'P_9_17 + -1'P_9_18 + -1'P_10_5 + -2'P_10_6 + -2'P_10_7 + -3'P_10_8 + -3'P_10_9 + -4'P_10_10 + -4'P_10_11 + -5'P_10_12 + -5'P_10_13 + -5'P_10_14 + -4'P_10_15 + -3'P_10_16 + -2'P_10_17 + -1'P_10_18 + -1'P_11_5 + -2'P_11_6 + -3'P_11_7 + -3'P_11_8 + -4'P_11_9 + -4'P_11_10 + -5'P_11_11 + -5'P_11_12 + -6'P_11_13 + -5'P_11_14 + -4'P_11_15 + -3'P_11_16 + -2'P_11_17 + -1'P_11_18 + -1'P_12_5 + -2'P_12_6 + -3'P_12_7 + -4'P_12_8 + -4'P_12_9 + -5'P_12_10 + -5'P_12_11 + -6'P_12_12 + -5'P_12_13 + -5'P_12_14 + -4'P_12_15 + -3'P_12_16 + -2'P_12_17 + -1'P_12_18 + -1'P_13_5 + -2'P_13_6 + -3'P_13_7 + -4'P_13_8 + -5'P_13_9 + -5'P_13_10 + -6'P_13_11 + -5'P_13_12 + -5'P_13_13 + -4'P_13_14 + -4'P_13_15 + -3'P_13_16 + -2'P_13_17 + -1'P_13_18 + -1'P_14_5 + -2'P_14_6 + -3'P_14_7 + -4'P_14_8 + -5'P_14_9 + -6'P_14_10 + -5'P_14_11 + -5'P_14_12 + -4'P_14_13 + -4'P_14_14 + -3'P_14_15 + -3'P_14_16 + -2'P_14_17 + -1'P_14_18 + -1'P_15_5 + -2'P_15_6 + -3'P_15_7 + -4'P_15_8 + -5'P_15_9 + -5'P_15_10 + -5'P_15_11 + -4'P_15_12 + -4'P_15_13 + -3'P_15_14 + -3'P_15_15 + -2'P_15_16 + -2'P_15_17 + -1'P_15_18 + -1'P_16_5 + -2'P_16_6 + -3'P_16_7 + -4'P_16_8 + -4'P_16_9 + -4'P_16_10 + -4'P_16_11 + -4'P_16_12 + -3'P_16_13 + -3'P_16_14 + -2'P_16_15 + -2'P_16_16 + -1'P_16_17 + -1'P_16_18 + -1'P_17_5 + -2'P_17_6 + -3'P_17_7 + -3'P_17_8 + -3'P_17_9 + -3'P_17_10 + -3'P_17_11 + -3'P_17_12 + -3'P_17_13 + -2'P_17_14 + -2'P_17_15 + -1'P_17_16 + -1'P_17_17 + -1'P_18_5 + -2'P_18_6 + -2'P_18_7 + -2'P_18_8 + -2'P_18_9 + -2'P_18_10 + -2'P_18_11 + -2'P_18_12 + -2'P_18_13 + -2'P_18_14 + -1'P_18_15 + -1'P_18_16 + -1'P_19_5 + -1'P_19_6 + -1'P_19_7 + -1'P_19_8 + -1'P_19_9 + -1'P_19_10 + -1'P_19_11 + -1'P_19_12 + -1'P_19_13 + -1'P_19_14 + -1'P_19_15 + -1'cX_6 + -2'cX_7 + -3'cX_8 + -4'cX_9 + -5'cX_10 + -6'cX_11 + -7'cX_12 + -8'cX_13 + -9'cX_14 + -10'cX_15 + -11'cX_16 + -12'cX_17 + -13'cX_18 + -14'cX_19 + -1'cY_5 + -2'cY_6 + -3'cY_7 + -4'cY_8 + -5'cY_9 + -6'cY_10 + -7'cY_11 + -8'cY_12 + -9'cY_13 + -10'cY_14 + -11'cY_15 + -12'cY_16 + -13'cY_17 + -14'cY_18 + -15'cY_19 + 8'L_0 + 8'L_1 + 7'L_2 + 7'L_3 + 6'L_4 + 6'L_5 + 5'L_6 + 5'L_7 + 4'L_8 + 4'L_9 + 3'L_10 + 3'L_11 + 2'L_12 + 2'L_13 + L_14 + L_15 + L_25 + L_26 + 2'L_27 + 2'L_28 + 3'L_29 + 3'L_30 + 4'L_31 + 4'L_32 + 5'L_33 + 5'L_34 + 6'L_35 + 6'L_36 + 7'L_37 + 7'L_38 + R_8 + R_9 + 2'R_10 + 2'R_11 + 3'R_12 + 3'R_13 + 4'R_14 + 4'R_15 + 5'R_16 + 5'R_17 + 6'R_18 + 6'R_19 + 7'R_20 + 7'R_21 + 8'R_22 + 8'R_23 + 9'R_24 + 9'R_25 + 11'R_26 + 12'R_27 + 14'R_28 + 15'R_29 + 17'R_30 + 18'R_31 + 20'R_32 + 21'R_33 + 23'R_34 + 24'R_35 + 26'R_36 + 27'R_37 + 28'R_38 + 29'R_39 = 278
invariant :P_11_19 + P_12_18 + P_13_17 + P_14_16 + P_15_15 + P_16_14 + P_17_13 + P_18_12 + P_19_11 + R_31 = 1
invariant :P_4_19 + P_5_18 + P_6_17 + P_7_16 + P_8_15 + P_9_14 + P_10_13 + P_11_12 + P_12_11 + P_13_10 + P_14_9 + P_15_8 + P_16_7 + P_17_6 + P_18_5 + P_19_4 + R_24 = 1
invariant :P_13_0 + -1'P_14_2 + -1'P_14_3 + -1'P_14_4 + -1'P_14_5 + -1'P_14_6 + -1'P_14_7 + -1'P_14_8 + -1'P_14_9 + -1'P_14_10 + -1'P_14_11 + -1'P_14_12 + -1'P_14_13 + -1'P_14_14 + -1'P_14_15 + -1'P_14_16 + -1'P_14_17 + -1'P_14_18 + -1'P_15_3 + -1'P_15_4 + -1'P_15_5 + -1'P_15_6 + -1'P_15_7 + -1'P_15_8 + -1'P_15_9 + -1'P_15_10 + -1'P_15_11 + -1'P_15_12 + -1'P_15_13 + -1'P_15_14 + -1'P_15_15 + -1'P_15_16 + -1'P_15_17 + -1'P_16_4 + -1'P_16_5 + -1'P_16_6 + -1'P_16_7 + -1'P_16_8 + -1'P_16_9 + -1'P_16_10 + -1'P_16_11 + -1'P_16_12 + -1'P_16_13 + -1'P_16_14 + -1'P_16_15 + -1'P_16_16 + -1'P_17_5 + -1'P_17_6 + -1'P_17_7 + -1'P_17_8 + -1'P_17_9 + -1'P_17_10 + -1'P_17_11 + -1'P_17_12 + -1'P_17_13 + -1'P_17_14 + -1'P_17_15 + -1'P_18_6 + -1'P_18_7 + -1'P_18_8 + -1'P_18_9 + -1'P_18_10 + -1'P_18_11 + -1'P_18_12 + -1'P_18_13 + -1'P_18_14 + -1'P_19_7 + -1'P_19_8 + -1'P_19_9 + -1'P_19_10 + -1'P_19_11 + -1'P_19_12 + -1'P_19_13 + -1'cX_14 + -1'cX_15 + -1'cX_16 + -1'cX_17 + -1'cX_18 + -1'cX_19 + L_32 + L_33 + L_34 + L_35 + L_36 + L_37 + L_38 + R_34 + R_35 + R_36 + R_37 + R_38 + R_39 = 7
invariant :P_2_10 + P_3_9 + P_3_10 + P_3_11 + P_4_8 + P_4_9 + 2'P_4_10 + P_4_11 + P_4_12 + P_5_7 + P_5_8 + 2'P_5_9 + 2'P_5_10 + 2'P_5_11 + P_5_12 + P_5_13 + P_6_6 + P_6_7 + 2'P_6_8 + 2'P_6_9 + 3'P_6_10 + 2'P_6_11 + 2'P_6_12 + P_6_13 + P_6_14 + P_7_5 + P_7_6 + 2'P_7_7 + 2'P_7_8 + 3'P_7_9 + 3'P_7_10 + 3'P_7_11 + 2'P_7_12 + 2'P_7_13 + P_7_14 + P_7_15 + P_8_4 + P_8_5 + 2'P_8_6 + 2'P_8_7 + 3'P_8_8 + 3'P_8_9 + 4'P_8_10 + 3'P_8_11 + 3'P_8_12 + 2'P_8_13 + 2'P_8_14 + P_8_15 + P_8_16 + P_9_3 + P_9_4 + 2'P_9_5 + 2'P_9_6 + 3'P_9_7 + 3'P_9_8 + 4'P_9_9 + 4'P_9_10 + 4'P_9_11 + 3'P_9_12 + 3'P_9_13 + 2'P_9_14 + 2'P_9_15 + P_9_16 + P_9_17 + P_10_2 + P_10_3 + 2'P_10_4 + 2'P_10_5 + 3'P_10_6 + 3'P_10_7 + 4'P_10_8 + 4'P_10_9 + 5'P_10_10 + 4'P_10_11 + 4'P_10_12 + 3'P_10_13 + 3'P_10_14 + 2'P_10_15 + 2'P_10_16 + P_10_17 + P_10_18 + P_11_3 + P_11_4 + 2'P_11_5 + 2'P_11_6 + 3'P_11_7 + 3'P_11_8 + 4'P_11_9 + 4'P_11_10 + 4'P_11_11 + 3'P_11_12 + 3'P_11_13 + 2'P_11_14 + 2'P_11_15 + P_11_16 + P_11_17 + P_12_4 + P_12_5 + 2'P_12_6 + 2'P_12_7 + 3'P_12_8 + 3'P_12_9 + 4'P_12_10 + 3'P_12_11 + 3'P_12_12 + 2'P_12_13 + 2'P_12_14 + P_12_15 + P_12_16 + P_13_5 + P_13_6 + 2'P_13_7 + 2'P_13_8 + 3'P_13_9 + 3'P_13_10 + 3'P_13_11 + 2'P_13_12 + 2'P_13_13 + P_13_14 + P_13_15 + P_14_6 + P_14_7 + 2'P_14_8 + 2'P_14_9 + 3'P_14_10 + 2'P_14_11 + 2'P_14_12 + P_14_13 + P_14_14 + P_15_7 + P_15_8 + 2'P_15_9 + 2'P_15_10 + 2'P_15_11 + P_15_12 + P_15_13 + P_16_8 + P_16_9 + 2'P_16_10 + P_16_11 + P_16_12 + P_17_9 + P_17_10 + P_17_11 + P_18_10 + -1'cX_11 + -2'cX_12 + -3'cX_13 + -4'cX_14 + -5'cX_15 + -6'cX_16 + -7'cX_17 + -8'cX_18 + -9'cX_19 + -1'cY_11 + -2'cY_12 + -3'cY_13 + -4'cY_14 + -5'cY_15 + -6'cY_16 + -7'cY_17 + -8'cY_18 + -9'cY_19 + 5'L_0 + 4'L_1 + 4'L_2 + 3'L_3 + 3'L_4 + 2'L_5 + 2'L_6 + L_7 + L_8 + L_30 + L_31 + 2'L_32 + 2'L_33 + 3'L_34 + 3'L_35 + 4'L_36 + 4'L_37 + 5'L_38 + R_13 + R_14 + 2'R_15 + 2'R_16 + 3'R_17 + 3'R_18 + 4'R_19 + 4'R_20 + 5'R_21 + 5'R_22 + 6'R_23 + 6'R_24 + 7'R_25 + 7'R_26 + 8'R_27 + 8'R_28 + 9'R_29 + 9'R_30 + 10'R_31 + 11'R_32 + 12'R_33 + 13'R_34 + 14'R_35 + 15'R_36 + 16'R_37 + 17'R_38 + 18'R_39 = 176
invariant :P_15_0 + -1'P_16_2 + -1'P_16_3 + -1'P_16_4 + -1'P_16_5 + -1'P_16_6 + -1'P_16_7 + -1'P_16_8 + -1'P_16_9 + -1'P_16_10 + -1'P_16_11 + -1'P_16_12 + -1'P_16_13 + -1'P_16_14 + -1'P_16_15 + -1'P_16_16 + -1'P_16_17 + -1'P_16_18 + -1'P_17_3 + -1'P_17_4 + -1'P_17_5 + -1'P_17_6 + -1'P_17_7 + -1'P_17_8 + -1'P_17_9 + -1'P_17_10 + -1'P_17_11 + -1'P_17_12 + -1'P_17_13 + -1'P_17_14 + -1'P_17_15 + -1'P_17_16 + -1'P_17_17 + -1'P_18_4 + -1'P_18_5 + -1'P_18_6 + -1'P_18_7 + -1'P_18_8 + -1'P_18_9 + -1'P_18_10 + -1'P_18_11 + -1'P_18_12 + -1'P_18_13 + -1'P_18_14 + -1'P_18_15 + -1'P_18_16 + -1'P_19_5 + -1'P_19_6 + -1'P_19_7 + -1'P_19_8 + -1'P_19_9 + -1'P_19_10 + -1'P_19_11 + -1'P_19_12 + -1'P_19_13 + -1'P_19_14 + -1'P_19_15 + -1'cX_16 + -1'cX_17 + -1'cX_18 + -1'cX_19 + L_34 + L_35 + L_36 + L_37 + L_38 + R_36 + R_37 + R_38 + R_39 = 5
invariant :cX_1 + -3'cX_3 + -8'cX_4 + -15'cX_5 + -24'cX_6 + -35'cX_7 + -48'cX_8 + -63'cX_9 + -80'cX_10 + -99'cX_11 + -120'cX_12 + -143'cX_13 + -168'cX_14 + -195'cX_15 + -224'cX_16 + -255'cX_17 + -288'cX_18 + -323'cX_19 + -2'cY_2 + -6'cY_3 + -12'cY_4 + -20'cY_5 + -30'cY_6 + -42'cY_7 + -56'cY_8 + -72'cY_9 + -90'cY_10 + -110'cY_11 + -132'cY_12 + -156'cY_13 + -182'cY_14 + -210'cY_15 + -240'cY_16 + -272'cY_17 + -306'cY_18 + -342'cY_19 + 189'L_0 + 171'L_1 + 152'L_2 + 136'L_3 + 119'L_4 + 105'L_5 + 90'L_6 + 78'L_7 + 65'L_8 + 55'L_9 + 44'L_10 + 36'L_11 + 27'L_12 + 21'L_13 + 14'L_14 + 10'L_15 + 5'L_16 + 3'L_17 + -1'L_20 + L_21 + 2'L_22 + 6'L_23 + 9'L_24 + 15'L_25 + 20'L_26 + 28'L_27 + 35'L_28 + 45'L_29 + 54'L_30 + 66'L_31 + 77'L_32 + 91'L_33 + 104'L_34 + 120'L_35 + 135'L_36 + 153'L_37 + 170'L_38 + -1'R_3 + R_4 + 2'R_5 + 6'R_6 + 9'R_7 + 15'R_8 + 20'R_9 + 28'R_10 + 35'R_11 + 45'R_12 + 54'R_13 + 66'R_14 + 77'R_15 + 91'R_16 + 104'R_17 + 120'R_18 + 135'R_19 + 153'R_20 + 170'R_21 + 190'R_22 + 209'R_23 + 231'R_24 + 252'R_25 + 276'R_26 + 299'R_27 + 325'R_28 + 350'R_29 + 378'R_30 + 405'R_31 + 435'R_32 + 464'R_33 + 496'R_34 + 527'R_35 + 561'R_36 + 594'R_37 + 630'R_38 + 665'R_39 = 6497
invariant :P_2_16 + P_3_15 + P_3_16 + P_3_17 + P_4_14 + P_4_15 + 2'P_4_16 + P_4_17 + P_4_18 + P_5_13 + P_5_14 + 2'P_5_15 + 2'P_5_16 + 2'P_5_17 + P_5_18 + P_6_12 + P_6_13 + 2'P_6_14 + 2'P_6_15 + 3'P_6_16 + 2'P_6_17 + P_6_18 + P_7_11 + P_7_12 + 2'P_7_13 + 2'P_7_14 + 3'P_7_15 + 3'P_7_16 + 2'P_7_17 + P_7_18 + P_8_10 + P_8_11 + 2'P_8_12 + 2'P_8_13 + 3'P_8_14 + 3'P_8_15 + 3'P_8_16 + 2'P_8_17 + P_8_18 + P_9_9 + P_9_10 + 2'P_9_11 + 2'P_9_12 + 3'P_9_13 + 3'P_9_14 + 3'P_9_15 + 3'P_9_16 + 2'P_9_17 + P_9_18 + P_10_8 + P_10_9 + 2'P_10_10 + 2'P_10_11 + 3'P_10_12 + 3'P_10_13 + 3'P_10_14 + 3'P_10_15 + 3'P_10_16 + 2'P_10_17 + P_10_18 + P_11_7 + P_11_8 + 2'P_11_9 + 2'P_11_10 + 3'P_11_11 + 3'P_11_12 + 3'P_11_13 + 3'P_11_14 + 3'P_11_15 + 3'P_11_16 + 2'P_11_17 + P_11_18 + P_12_6 + P_12_7 + 2'P_12_8 + 2'P_12_9 + 3'P_12_10 + 3'P_12_11 + 3'P_12_12 + 3'P_12_13 + 3'P_12_14 + 3'P_12_15 + 3'P_12_16 + 2'P_12_17 + P_12_18 + P_13_5 + P_13_6 + 2'P_13_7 + 2'P_13_8 + 3'P_13_9 + 3'P_13_10 + 3'P_13_11 + 3'P_13_12 + 3'P_13_13 + 3'P_13_14 + 3'P_13_15 + 3'P_13_16 + 2'P_13_17 + P_13_18 + P_14_4 + P_14_5 + 2'P_14_6 + 2'P_14_7 + 3'P_14_8 + 3'P_14_9 + 3'P_14_10 + 3'P_14_11 + 3'P_14_12 + 3'P_14_13 + 3'P_14_14 + 3'P_14_15 + 3'P_14_16 + 2'P_14_17 + P_14_18 + P_15_3 + P_15_4 + 2'P_15_5 + 2'P_15_6 + 3'P_15_7 + 3'P_15_8 + 3'P_15_9 + 3'P_15_10 + 3'P_15_11 + 3'P_15_12 + 3'P_15_13 + 3'P_15_14 + 3'P_15_15 + 3'P_15_16 + 2'P_15_17 + P_15_18 + P_16_2 + P_16_3 + 2'P_16_4 + 2'P_16_5 + 3'P_16_6 + 3'P_16_7 + 3'P_16_8 + 3'P_16_9 + 3'P_16_10 + 3'P_16_11 + 3'P_16_12 + 3'P_16_13 + 3'P_16_14 + 3'P_16_15 + 3'P_16_16 + 2'P_16_17 + P_16_18 + P_17_3 + P_17_4 + 2'P_17_5 + 2'P_17_6 + 2'P_17_7 + 2'P_17_8 + 2'P_17_9 + 2'P_17_10 + 2'P_17_11 + 2'P_17_12 + 2'P_17_13 + 2'P_17_14 + 2'P_17_15 + 2'P_17_16 + P_17_17 + P_18_4 + P_18_5 + P_18_6 + P_18_7 + P_18_8 + P_18_9 + P_18_10 + P_18_11 + P_18_12 + P_18_13 + P_18_14 + P_18_15 + P_18_16 + -1'cX_17 + -2'cX_18 + -3'cX_19 + -1'cY_17 + -2'cY_18 + -3'cY_19 + 2'L_0 + L_1 + L_2 + L_36 + L_37 + 2'L_38 + R_19 + R_20 + 2'R_21 + 2'R_22 + 3'R_23 + 3'R_24 + 3'R_25 + 3'R_26 + 3'R_27 + 3'R_28 + 3'R_29 + 3'R_30 + 3'R_31 + 3'R_32 + 3'R_33 + 3'R_34 + 3'R_35 + 3'R_36 + 4'R_37 + 5'R_38 + 6'R_39 = 59
invariant :P_2_19 + P_3_18 + P_4_17 + P_5_16 + P_6_15 + P_7_14 + P_8_13 + P_9_12 + P_10_11 + P_11_10 + P_12_9 + P_13_8 + P_14_7 + P_15_6 + P_16_5 + P_17_4 + P_18_3 + P_19_2 + R_22 = 1
invariant :P_2_1 + -1'P_3_3 + -1'P_3_4 + -1'P_3_5 + -1'P_3_6 + -1'P_3_7 + -1'P_3_8 + -1'P_3_9 + -1'P_3_10 + -1'P_3_11 + -1'P_3_12 + -1'P_3_13 + -1'P_3_14 + -1'P_3_15 + -1'P_3_16 + -1'P_3_17 + -1'P_3_18 + -1'P_4_2 + -1'P_4_3 + -2'P_4_4 + -2'P_4_5 + -2'P_4_6 + -2'P_4_7 + -2'P_4_8 + -2'P_4_9 + -2'P_4_10 + -2'P_4_11 + -2'P_4_12 + -2'P_4_13 + -2'P_4_14 + -2'P_4_15 + -2'P_4_16 + -2'P_4_17 + -1'P_4_18 + -1'P_5_2 + -2'P_5_3 + -2'P_5_4 + -3'P_5_5 + -3'P_5_6 + -3'P_5_7 + -3'P_5_8 + -3'P_5_9 + -3'P_5_10 + -3'P_5_11 + -3'P_5_12 + -3'P_5_13 + -3'P_5_14 + -3'P_5_15 + -3'P_5_16 + -2'P_5_17 + -1'P_5_18 + -1'P_6_2 + -2'P_6_3 + -3'P_6_4 + -3'P_6_5 + -4'P_6_6 + -4'P_6_7 + -4'P_6_8 + -4'P_6_9 + -4'P_6_10 + -4'P_6_11 + -4'P_6_12 + -4'P_6_13 + -4'P_6_14 + -4'P_6_15 + -3'P_6_16 + -2'P_6_17 + -1'P_6_18 + -1'P_7_2 + -2'P_7_3 + -3'P_7_4 + -4'P_7_5 + -4'P_7_6 + -5'P_7_7 + -5'P_7_8 + -5'P_7_9 + -5'P_7_10 + -5'P_7_11 + -5'P_7_12 + -5'P_7_13 + -5'P_7_14 + -4'P_7_15 + -3'P_7_16 + -2'P_7_17 + -1'P_7_18 + -1'P_8_2 + -2'P_8_3 + -3'P_8_4 + -4'P_8_5 + -5'P_8_6 + -5'P_8_7 + -6'P_8_8 + -6'P_8_9 + -6'P_8_10 + -6'P_8_11 + -6'P_8_12 + -6'P_8_13 + -5'P_8_14 + -4'P_8_15 + -3'P_8_16 + -2'P_8_17 + -1'P_8_18 + -1'P_9_2 + -2'P_9_3 + -3'P_9_4 + -4'P_9_5 + -5'P_9_6 + -6'P_9_7 + -6'P_9_8 + -7'P_9_9 + -7'P_9_10 + -7'P_9_11 + -7'P_9_12 + -6'P_9_13 + -5'P_9_14 + -4'P_9_15 + -3'P_9_16 + -2'P_9_17 + -1'P_9_18 + -1'P_10_2 + -2'P_10_3 + -3'P_10_4 + -4'P_10_5 + -5'P_10_6 + -6'P_10_7 + -7'P_10_8 + -7'P_10_9 + -8'P_10_10 + -8'P_10_11 + -7'P_10_12 + -6'P_10_13 + -5'P_10_14 + -4'P_10_15 + -3'P_10_16 + -2'P_10_17 + -1'P_10_18 + -1'P_11_2 + -2'P_11_3 + -3'P_11_4 + -4'P_11_5 + -5'P_11_6 + -6'P_11_7 + -7'P_11_8 + -8'P_11_9 + -8'P_11_10 + -8'P_11_11 + -7'P_11_12 + -6'P_11_13 + -5'P_11_14 + -4'P_11_15 + -3'P_11_16 + -2'P_11_17 + -1'P_11_18 + -1'P_12_2 + -2'P_12_3 + -3'P_12_4 + -4'P_12_5 + -5'P_12_6 + -6'P_12_7 + -7'P_12_8 + -8'P_12_9 + -8'P_12_10 + -7'P_12_11 + -7'P_12_12 + -6'P_12_13 + -5'P_12_14 + -4'P_12_15 + -3'P_12_16 + -2'P_12_17 + -1'P_12_18 + -1'P_13_2 + -2'P_13_3 + -3'P_13_4 + -4'P_13_5 + -5'P_13_6 + -6'P_13_7 + -7'P_13_8 + -7'P_13_9 + -7'P_13_10 + -7'P_13_11 + -6'P_13_12 + -6'P_13_13 + -5'P_13_14 + -4'P_13_15 + -3'P_13_16 + -2'P_13_17 + -1'P_13_18 + -1'P_14_2 + -2'P_14_3 + -3'P_14_4 + -4'P_14_5 + -5'P_14_6 + -6'P_14_7 + -6'P_14_8 + -6'P_14_9 + -6'P_14_10 + -6'P_14_11 + -6'P_14_12 + -5'P_14_13 + -5'P_14_14 + -4'P_14_15 + -3'P_14_16 + -2'P_14_17 + -1'P_14_18 + -1'P_15_2 + -2'P_15_3 + -3'P_15_4 + -4'P_15_5 + -5'P_15_6 + -5'P_15_7 + -5'P_15_8 + -5'P_15_9 + -5'P_15_10 + -5'P_15_11 + -5'P_15_12 + -5'P_15_13 + -4'P_15_14 + -4'P_15_15 + -3'P_15_16 + -2'P_15_17 + -1'P_15_18 + -1'P_16_2 + -2'P_16_3 + -3'P_16_4 + -4'P_16_5 + -4'P_16_6 + -4'P_16_7 + -4'P_16_8 + -4'P_16_9 + -4'P_16_10 + -4'P_16_11 + -4'P_16_12 + -4'P_16_13 + -4'P_16_14 + -3'P_16_15 + -3'P_16_16 + -2'P_16_17 + -1'P_16_18 + -1'P_17_2 + -2'P_17_3 + -3'P_17_4 + -3'P_17_5 + -3'P_17_6 + -3'P_17_7 + -3'P_17_8 + -3'P_17_9 + -3'P_17_10 + -3'P_17_11 + -3'P_17_12 + -3'P_17_13 + -3'P_17_14 + -3'P_17_15 + -2'P_17_16 + -2'P_17_17 + -1'P_17_18 + -1'P_18_2 + -2'P_18_3 + -2'P_18_4 + -2'P_18_5 + -2'P_18_6 + -2'P_18_7 + -2'P_18_8 + -2'P_18_9 + -2'P_18_10 + -2'P_18_11 + -2'P_18_12 + -2'P_18_13 + -2'P_18_14 + -2'P_18_15 + -2'P_18_16 + -1'P_18_17 + -1'P_18_18 + -1'P_19_2 + -1'P_19_3 + -1'P_19_4 + -1'P_19_5 + -1'P_19_6 + -1'P_19_7 + -1'P_19_8 + -1'P_19_9 + -1'P_19_10 + -1'P_19_11 + -1'P_19_12 + -1'P_19_13 + -1'P_19_14 + -1'P_19_15 + -1'P_19_16 + -1'P_19_17 + -1'cX_3 + -2'cX_4 + -3'cX_5 + -4'cX_6 + -5'cX_7 + -6'cX_8 + -7'cX_9 + -8'cX_10 + -9'cX_11 + -10'cX_12 + -11'cX_13 + -12'cX_14 + -13'cX_15 + -14'cX_16 + -15'cX_17 + -16'cX_18 + -17'cX_19 + -1'cY_2 + -2'cY_3 + -3'cY_4 + -4'cY_5 + -5'cY_6 + -6'cY_7 + -7'cY_8 + -8'cY_9 + -9'cY_10 + -10'cY_11 + -11'cY_12 + -12'cY_13 + -13'cY_14 + -14'cY_15 + -15'cY_16 + -16'cY_17 + -17'cY_18 + -18'cY_19 + 9'L_0 + 9'L_1 + 8'L_2 + 8'L_3 + 7'L_4 + 7'L_5 + 6'L_6 + 6'L_7 + 5'L_8 + 5'L_9 + 4'L_10 + 4'L_11 + 3'L_12 + 3'L_13 + 2'L_14 + 2'L_15 + L_16 + L_17 + L_23 + L_24 + 2'L_25 + 2'L_26 + 3'L_27 + 3'L_28 + 4'L_29 + 4'L_30 + 5'L_31 + 5'L_32 + 6'L_33 + 6'L_34 + 7'L_35 + 7'L_36 + 8'L_37 + 8'L_38 + R_4 + R_5 + 2'R_6 + 2'R_7 + 3'R_8 + 3'R_9 + 4'R_10 + 4'R_11 + 5'R_12 + 5'R_13 + 6'R_14 + 6'R_15 + 7'R_16 + 7'R_17 + 8'R_18 + 8'R_19 + 9'R_20 + 9'R_21 + 10'R_22 + 11'R_23 + 13'R_24 + 14'R_25 + 16'R_26 + 17'R_27 + 19'R_28 + 20'R_29 + 22'R_30 + 23'R_31 + 25'R_32 + 26'R_33 + 28'R_34 + 29'R_35 + 31'R_36 + 32'R_37 + 34'R_38 + 35'R_39 = 333
invariant :P_2_12 + P_3_11 + P_3_12 + P_3_13 + P_4_10 + P_4_11 + 2'P_4_12 + P_4_13 + P_4_14 + P_5_9 + P_5_10 + 2'P_5_11 + 2'P_5_12 + 2'P_5_13 + P_5_14 + P_5_15 + P_6_8 + P_6_9 + 2'P_6_10 + 2'P_6_11 + 3'P_6_12 + 2'P_6_13 + 2'P_6_14 + P_6_15 + P_6_16 + P_7_7 + P_7_8 + 2'P_7_9 + 2'P_7_10 + 3'P_7_11 + 3'P_7_12 + 3'P_7_13 + 2'P_7_14 + 2'P_7_15 + P_7_16 + P_7_17 + P_8_6 + P_8_7 + 2'P_8_8 + 2'P_8_9 + 3'P_8_10 + 3'P_8_11 + 4'P_8_12 + 3'P_8_13 + 3'P_8_14 + 2'P_8_15 + 2'P_8_16 + P_8_17 + P_8_18 + P_9_5 + P_9_6 + 2'P_9_7 + 2'P_9_8 + 3'P_9_9 + 3'P_9_10 + 4'P_9_11 + 4'P_9_12 + 4'P_9_13 + 3'P_9_14 + 3'P_9_15 + 2'P_9_16 + 2'P_9_17 + P_9_18 + P_10_4 + P_10_5 + 2'P_10_6 + 2'P_10_7 + 3'P_10_8 + 3'P_10_9 + 4'P_10_10 + 4'P_10_11 + 5'P_10_12 + 4'P_10_13 + 4'P_10_14 + 3'P_10_15 + 3'P_10_16 + 2'P_10_17 + P_10_18 + P_11_3 + P_11_4 + 2'P_11_5 + 2'P_11_6 + 3'P_11_7 + 3'P_11_8 + 4'P_11_9 + 4'P_11_10 + 5'P_11_11 + 5'P_11_12 + 5'P_11_13 + 4'P_11_14 + 4'P_11_15 + 3'P_11_16 + 2'P_11_17 + P_11_18 + P_12_2 + P_12_3 + 2'P_12_4 + 2'P_12_5 + 3'P_12_6 + 3'P_12_7 + 4'P_12_8 + 4'P_12_9 + 5'P_12_10 + 5'P_12_11 + 6'P_12_12 + 5'P_12_13 + 5'P_12_14 + 4'P_12_15 + 3'P_12_16 + 2'P_12_17 + P_12_18 + P_13_3 + P_13_4 + 2'P_13_5 + 2'P_13_6 + 3'P_13_7 + 3'P_13_8 + 4'P_13_9 + 4'P_13_10 + 5'P_13_11 + 5'P_13_12 + 5'P_13_13 + 4'P_13_14 + 3'P_13_15 + 2'P_13_16 + P_13_17 + P_14_4 + P_14_5 + 2'P_14_6 + 2'P_14_7 + 3'P_14_8 + 3'P_14_9 + 4'P_14_10 + 4'P_14_11 + 5'P_14_12 + 4'P_14_13 + 3'P_14_14 + 2'P_14_15 + P_14_16 + P_15_5 + P_15_6 + 2'P_15_7 + 2'P_15_8 + 3'P_15_9 + 3'P_15_10 + 4'P_15_11 + 4'P_15_12 + 3'P_15_13 + 2'P_15_14 + P_15_15 + P_16_6 + P_16_7 + 2'P_16_8 + 2'P_16_9 + 3'P_16_10 + 3'P_16_11 + 3'P_16_12 + 2'P_16_13 + P_16_14 + P_17_7 + P_17_8 + 2'P_17_9 + 2'P_17_10 + 2'P_17_11 + 2'P_17_12 + P_17_13 + P_18_8 + P_18_9 + P_18_10 + P_18_11 + P_18_12 + -1'cX_13 + -2'cX_14 + -3'cX_15 + -4'cX_16 + -5'cX_17 + -6'cX_18 + -7'cX_19 + -1'cY_13 + -2'cY_14 + -3'cY_15 + -4'cY_16 + -5'cY_17 + -6'cY_18 + -7'cY_19 + 4'L_0 + 3'L_1 + 3'L_2 + 2'L_3 + 2'L_4 + L_5 + L_6 + L_32 + L_33 + 2'L_34 + 2'L_35 + 3'L_36 + 3'L_37 + 4'L_38 + R_15 + R_16 + 2'R_17 + 2'R_18 + 3'R_19 + 3'R_20 + 4'R_21 + 4'R_22 + 5'R_23 + 5'R_24 + 6'R_25 + 6'R_26 + 7'R_27 + 7'R_28 + 7'R_29 + 7'R_30 + 7'R_31 + 7'R_32 + 8'R_33 + 9'R_34 + 10'R_35 + 11'R_36 + 12'R_37 + 13'R_38 + 14'R_39 = 137
invariant :P_0_7 + P_3_7 + P_4_6 + P_4_7 + P_4_8 + P_5_5 + P_5_6 + 2'P_5_7 + P_5_8 + P_5_9 + P_6_4 + P_6_5 + 2'P_6_6 + 2'P_6_7 + 2'P_6_8 + P_6_9 + P_6_10 + P_7_3 + P_7_4 + 2'P_7_5 + 2'P_7_6 + 3'P_7_7 + 2'P_7_8 + 2'P_7_9 + P_7_10 + P_7_11 + P_8_2 + P_8_3 + 2'P_8_4 + 2'P_8_5 + 3'P_8_6 + 3'P_8_7 + 3'P_8_8 + 2'P_8_9 + 2'P_8_10 + P_8_11 + P_8_12 + P_9_3 + P_9_4 + 2'P_9_5 + 2'P_9_6 + 3'P_9_7 + 2'P_9_8 + 2'P_9_9 + P_9_10 + P_9_11 + -1'P_9_14 + -1'P_9_15 + -1'P_9_16 + -1'P_9_17 + -1'P_9_18 + P_10_4 + P_10_5 + 2'P_10_6 + 2'P_10_7 + 2'P_10_8 + P_10_9 + P_10_10 + -1'P_10_13 + -1'P_10_14 + -2'P_10_15 + -2'P_10_16 + -2'P_10_17 + -1'P_10_18 + P_11_5 + P_11_6 + 2'P_11_7 + P_11_8 + P_11_9 + -1'P_11_12 + -1'P_11_13 + -2'P_11_14 + -2'P_11_15 + -3'P_11_16 + -2'P_11_17 + -1'P_11_18 + P_12_6 + P_12_7 + P_12_8 + -1'P_12_11 + -1'P_12_12 + -2'P_12_13 + -2'P_12_14 + -3'P_12_15 + -2'P_12_16 + -2'P_12_17 + -1'P_12_18 + P_13_7 + -1'P_13_10 + -1'P_13_11 + -2'P_13_12 + -2'P_13_13 + -3'P_13_14 + -2'P_13_15 + -2'P_13_16 + -1'P_13_17 + -1'P_13_18 + -1'P_14_9 + -1'P_14_10 + -2'P_14_11 + -2'P_14_12 + -3'P_14_13 + -2'P_14_14 + -2'P_14_15 + -1'P_14_16 + -1'P_14_17 + -1'P_15_8 + -1'P_15_9 + -2'P_15_10 + -2'P_15_11 + -3'P_15_12 + -2'P_15_13 + -2'P_15_14 + -1'P_15_15 + -1'P_15_16 + -1'P_16_8 + -2'P_16_9 + -2'P_16_10 + -3'P_16_11 + -2'P_16_12 + -2'P_16_13 + -1'P_16_14 + -1'P_16_15 + -1'P_17_8 + -2'P_17_9 + -3'P_17_10 + -2'P_17_11 + -2'P_17_12 + -1'P_17_13 + -1'P_17_14 + -1'P_18_8 + -2'P_18_9 + -2'P_18_10 + -2'P_18_11 + -1'P_18_12 + -1'P_18_13 + -1'P_19_8 + -1'P_19_9 + -1'P_19_10 + -1'P_19_11 + -1'P_19_12 + -1'cX_9 + -2'cX_10 + -3'cX_11 + -4'cX_12 + -5'cX_13 + -6'cX_14 + -7'cX_15 + -8'cX_16 + -9'cX_17 + -10'cX_18 + -11'cX_19 + -1'cY_8 + -2'cY_9 + -3'cY_10 + -4'cY_11 + -5'cY_12 + -6'cY_13 + -7'cY_14 + -8'cY_15 + -9'cY_16 + -10'cY_17 + -11'cY_18 + -12'cY_19 + 7'L_0 + 6'L_1 + 6'L_2 + 5'L_3 + 5'L_4 + 4'L_5 + 4'L_6 + 3'L_7 + 3'L_8 + 2'L_9 + 2'L_10 + L_11 + L_12 + L_28 + L_29 + 2'L_30 + 2'L_31 + 3'L_32 + 3'L_33 + 4'L_34 + 4'L_35 + 5'L_36 + 5'L_37 + 6'L_38 + R_11 + R_12 + 2'R_13 + 2'R_14 + 3'R_15 + 3'R_16 + 4'R_17 + 4'R_18 + 5'R_19 + 5'R_20 + 6'R_21 + 6'R_22 + 7'R_23 + 7'R_24 + 8'R_25 + 8'R_26 + 9'R_27 + 9'R_28 + 11'R_29 + 12'R_30 + 14'R_31 + 15'R_32 + 17'R_33 + 18'R_34 + 19'R_35 + 20'R_36 + 21'R_37 + 22'R_38 + 23'R_39 = 223
invariant :P_1_3 + -1'P_3_2 + -1'P_3_3 + -1'P_3_4 + -1'P_4_2 + -1'P_4_3 + -1'P_4_4 + P_4_6 + P_4_7 + P_4_8 + P_4_9 + P_4_10 + P_4_11 + P_4_12 + P_4_13 + P_4_14 + P_4_15 + P_4_16 + P_4_17 + P_4_18 + P_5_5 + 2'P_5_6 + 3'P_5_7 + 3'P_5_8 + 3'P_5_9 + 3'P_5_10 + 3'P_5_11 + 3'P_5_12 + 3'P_5_13 + 3'P_5_14 + 3'P_5_15 + 3'P_5_16 + 3'P_5_17 + 2'P_5_18 + P_6_3 + P_6_4 + 2'P_6_5 + 3'P_6_6 + 4'P_6_7 + 5'P_6_8 + 5'P_6_9 + 5'P_6_10 + 5'P_6_11 + 5'P_6_12 + 5'P_6_13 + 5'P_6_14 + 5'P_6_15 + 5'P_6_16 + 4'P_6_17 + 2'P_6_18 + P_7_3 + 2'P_7_4 + 3'P_7_5 + 4'P_7_6 + 5'P_7_7 + 6'P_7_8 + 7'P_7_9 + 7'P_7_10 + 7'P_7_11 + 7'P_7_12 + 7'P_7_13 + 7'P_7_14 + 7'P_7_15 + 6'P_7_16 + 4'P_7_17 + 2'P_7_18 + P_8_3 + 2'P_8_4 + 4'P_8_5 + 5'P_8_6 + 6'P_8_7 + 7'P_8_8 + 8'P_8_9 + 9'P_8_10 + 9'P_8_11 + 9'P_8_12 + 9'P_8_13 + 9'P_8_14 + 8'P_8_15 + 6'P_8_16 + 4'P_8_17 + 2'P_8_18 + P_9_3 + 2'P_9_4 + 4'P_9_5 + 6'P_9_6 + 7'P_9_7 + 8'P_9_8 + 9'P_9_9 + 10'P_9_10 + 11'P_9_11 + 11'P_9_12 + 11'P_9_13 + 10'P_9_14 + 8'P_9_15 + 6'P_9_16 + 4'P_9_17 + 2'P_9_18 + P_10_3 + 2'P_10_4 + 4'P_10_5 + 6'P_10_6 + 8'P_10_7 + 9'P_10_8 + 10'P_10_9 + 11'P_10_10 + 12'P_10_11 + 13'P_10_12 + 12'P_10_13 + 10'P_10_14 + 8'P_10_15 + 6'P_10_16 + 4'P_10_17 + 2'P_10_18 + P_11_3 + 2'P_11_4 + 4'P_11_5 + 6'P_11_6 + 8'P_11_7 + 10'P_11_8 + 11'P_11_9 + 12'P_11_10 + 13'P_11_11 + 13'P_11_12 + 12'P_11_13 + 10'P_11_14 + 8'P_11_15 + 6'P_11_16 + 4'P_11_17 + 2'P_11_18 + P_12_3 + 2'P_12_4 + 4'P_12_5 + 6'P_12_6 + 8'P_12_7 + 10'P_12_8 + 12'P_12_9 + 13'P_12_10 + 13'P_12_11 + 12'P_12_12 + 11'P_12_13 + 10'P_12_14 + 8'P_12_15 + 6'P_12_16 + 4'P_12_17 + 2'P_12_18 + P_13_3 + 2'P_13_4 + 4'P_13_5 + 6'P_13_6 + 8'P_13_7 + 10'P_13_8 + 12'P_13_9 + 13'P_13_10 + 12'P_13_11 + 11'P_13_12 + 10'P_13_13 + 9'P_13_14 + 8'P_13_15 + 6'P_13_16 + 4'P_13_17 + 2'P_13_18 + P_14_3 + 2'P_14_4 + 4'P_14_5 + 6'P_14_6 + 8'P_14_7 + 10'P_14_8 + 11'P_14_9 + 11'P_14_10 + 11'P_14_11 + 10'P_14_12 + 9'P_14_13 + 8'P_14_14 + 7'P_14_15 + 6'P_14_16 + 4'P_14_17 + 2'P_14_18 + P_15_3 + 2'P_15_4 + 4'P_15_5 + 6'P_15_6 + 8'P_15_7 + 9'P_15_8 + 9'P_15_9 + 9'P_15_10 + 9'P_15_11 + 9'P_15_12 + 8'P_15_13 + 7'P_15_14 + 6'P_15_15 + 5'P_15_16 + 4'P_15_17 + 2'P_15_18 + P_16_3 + 2'P_16_4 + 4'P_16_5 + 6'P_16_6 + 7'P_16_7 + 7'P_16_8 + 7'P_16_9 + 7'P_16_10 + 7'P_16_11 + 7'P_16_12 + 7'P_16_13 + 6'P_16_14 + 5'P_16_15 + 4'P_16_16 + 3'P_16_17 + 2'P_16_18 + P_17_3 + 2'P_17_4 + 4'P_17_5 + 5'P_17_6 + 5'P_17_7 + 5'P_17_8 + 5'P_17_9 + 5'P_17_10 + 5'P_17_11 + 5'P_17_12 + 5'P_17_13 + 5'P_17_14 + 4'P_17_15 + 3'P_17_16 + 2'P_17_17 + P_17_18 + P_18_3 + 2'P_18_4 + 3'P_18_5 + 3'P_18_6 + 3'P_18_7 + 3'P_18_8 + 3'P_18_9 + 3'P_18_10 + 3'P_18_11 + 3'P_18_12 + 3'P_18_13 + 3'P_18_14 + 3'P_18_15 + 2'P_18_16 + P_18_17 + P_19_3 + P_19_4 + P_19_5 + P_19_6 + P_19_7 + P_19_8 + P_19_9 + P_19_10 + P_19_11 + P_19_12 + P_19_13 + P_19_14 + P_19_15 + P_19_16 + cX_4 + 3'cX_5 + 5'cX_6 + 7'cX_7 + 9'cX_8 + 11'cX_9 + 13'cX_10 + 15'cX_11 + 17'cX_12 + 19'cX_13 + 21'cX_14 + 23'cX_15 + 25'cX_16 + 27'cX_17 + 29'cX_18 + 31'cX_19 + cY_3 + 2'cY_4 + 4'cY_5 + 6'cY_6 + 8'cY_7 + 10'cY_8 + 12'cY_9 + 14'cY_10 + 16'cY_11 + 18'cY_12 + 20'cY_13 + 22'cY_14 + 24'cY_15 + 26'cY_16 + 28'cY_17 + 30'cY_18 + 32'cY_19 + -17'L_0 + -16'L_1 + -15'L_2 + -14'L_3 + -13'L_4 + -12'L_5 + -11'L_6 + -10'L_7 + -9'L_8 + -8'L_9 + -7'L_10 + -6'L_11 + -5'L_12 + -4'L_13 + -3'L_14 + -2'L_15 + -1'L_16 + -1'L_23 + -2'L_24 + -3'L_25 + -4'L_26 + -5'L_27 + -6'L_28 + -7'L_29 + -8'L_30 + -9'L_31 + -10'L_32 + -11'L_33 + -12'L_34 + -13'L_35 + -14'L_36 + -15'L_37 + -16'L_38 + -1'R_6 + -2'R_7 + -3'R_8 + -4'R_9 + -5'R_10 + -6'R_11 + -7'R_12 + -8'R_13 + -9'R_14 + -10'R_15 + -11'R_16 + -12'R_17 + -13'R_18 + -14'R_19 + -15'R_20 + -16'R_21 + -17'R_22 + -18'R_23 + -20'R_24 + -23'R_25 + -26'R_26 + -29'R_27 + -32'R_28 + -35'R_29 + -38'R_30 + -41'R_31 + -44'R_32 + -47'R_33 + -50'R_34 + -53'R_35 + -56'R_36 + -59'R_37 + -61'R_38 + -63'R_39 = -608
invariant :P_1_19 + -1'P_3_18 + -1'P_4_17 + -1'P_4_18 + -1'P_5_16 + -1'P_5_17 + -1'P_5_18 + -1'P_6_15 + -1'P_6_16 + -1'P_6_17 + -1'P_6_18 + -1'P_7_14 + -1'P_7_15 + -1'P_7_16 + -1'P_7_17 + -1'P_7_18 + -1'P_8_13 + -1'P_8_14 + -1'P_8_15 + -1'P_8_16 + -1'P_8_17 + -1'P_8_18 + -1'P_9_12 + -1'P_9_13 + -1'P_9_14 + -1'P_9_15 + -1'P_9_16 + -1'P_9_17 + -1'P_9_18 + -1'P_10_11 + -1'P_10_12 + -1'P_10_13 + -1'P_10_14 + -1'P_10_15 + -1'P_10_16 + -1'P_10_17 + -1'P_10_18 + -1'P_11_10 + -1'P_11_11 + -1'P_11_12 + -1'P_11_13 + -1'P_11_14 + -1'P_11_15 + -1'P_11_16 + -1'P_11_17 + -1'P_11_18 + -1'P_12_9 + -1'P_12_10 + -1'P_12_11 + -1'P_12_12 + -1'P_12_13 + -1'P_12_14 + -1'P_12_15 + -1'P_12_16 + -1'P_12_17 + -1'P_12_18 + -1'P_13_8 + -1'P_13_9 + -1'P_13_10 + -1'P_13_11 + -1'P_13_12 + -1'P_13_13 + -1'P_13_14 + -1'P_13_15 + -1'P_13_16 + -1'P_13_17 + -1'P_13_18 + -1'P_14_7 + -1'P_14_8 + -1'P_14_9 + -1'P_14_10 + -1'P_14_11 + -1'P_14_12 + -1'P_14_13 + -1'P_14_14 + -1'P_14_15 + -1'P_14_16 + -1'P_14_17 + -1'P_14_18 + -1'P_15_6 + -1'P_15_7 + -1'P_15_8 + -1'P_15_9 + -1'P_15_10 + -1'P_15_11 + -1'P_15_12 + -1'P_15_13 + -1'P_15_14 + -1'P_15_15 + -1'P_15_16 + -1'P_15_17 + -1'P_15_18 + -1'P_16_5 + -1'P_16_6 + -1'P_16_7 + -1'P_16_8 + -1'P_16_9 + -1'P_16_10 + -1'P_16_11 + -1'P_16_12 + -1'P_16_13 + -1'P_16_14 + -1'P_16_15 + -1'P_16_16 + -1'P_16_17 + -1'P_16_18 + -1'P_17_4 + -1'P_17_5 + -1'P_17_6 + -1'P_17_7 + -1'P_17_8 + -1'P_17_9 + -1'P_17_10 + -1'P_17_11 + -1'P_17_12 + -1'P_17_13 + -1'P_17_14 + -1'P_17_15 + -1'P_17_16 + -1'P_17_17 + -1'P_17_18 + -1'P_18_3 + -1'P_18_4 + -1'P_18_5 + -1'P_18_6 + -1'P_18_7 + -1'P_18_8 + -1'P_18_9 + -1'P_18_10 + -1'P_18_11 + -1'P_18_12 + -1'P_18_13 + -1'P_18_14 + -1'P_18_15 + -1'P_18_16 + -1'P_18_17 + -1'P_18_18 + -1'P_19_2 + -1'P_19_3 + -1'P_19_4 + -1'P_19_5 + -1'P_19_6 + -1'P_19_7 + -1'P_19_8 + -1'P_19_9 + -1'P_19_10 + -1'P_19_11 + -1'P_19_12 + -1'P_19_13 + -1'P_19_14 + -1'P_19_15 + -1'P_19_16 + -1'P_19_17 + -1'P_19_18 + cY_19 + -1'L_0 + -1'R_22 + -1'R_23 + -1'R_24 + -1'R_25 + -1'R_26 + -1'R_27 + -1'R_28 + -1'R_29 + -1'R_30 + -1'R_31 + -1'R_32 + -1'R_33 + -1'R_34 + -1'R_35 + -1'R_36 + -1'R_37 + -1'R_38 + -1'R_39 = -18
invariant :P_0_1 + -1'P_3_2 + -1'P_3_3 + -1'P_3_4 + -1'P_3_5 + -1'P_3_6 + -1'P_3_7 + -1'P_3_8 + -1'P_3_9 + -1'P_3_10 + -1'P_3_11 + -1'P_3_12 + -1'P_3_13 + -1'P_3_14 + -1'P_3_15 + -1'P_3_16 + -1'P_3_17 + -1'P_3_18 + -1'P_4_2 + -2'P_4_3 + -2'P_4_4 + -2'P_4_5 + -2'P_4_6 + -2'P_4_7 + -2'P_4_8 + -2'P_4_9 + -2'P_4_10 + -2'P_4_11 + -2'P_4_12 + -2'P_4_13 + -2'P_4_14 + -2'P_4_15 + -2'P_4_16 + -2'P_4_17 + -1'P_4_18 + -1'P_5_2 + -2'P_5_3 + -3'P_5_4 + -3'P_5_5 + -3'P_5_6 + -3'P_5_7 + -3'P_5_8 + -3'P_5_9 + -3'P_5_10 + -3'P_5_11 + -3'P_5_12 + -3'P_5_13 + -3'P_5_14 + -3'P_5_15 + -3'P_5_16 + -2'P_5_17 + -1'P_5_18 + -1'P_6_2 + -2'P_6_3 + -3'P_6_4 + -4'P_6_5 + -4'P_6_6 + -4'P_6_7 + -4'P_6_8 + -4'P_6_9 + -4'P_6_10 + -4'P_6_11 + -4'P_6_12 + -4'P_6_13 + -4'P_6_14 + -4'P_6_15 + -3'P_6_16 + -2'P_6_17 + -1'P_6_18 + -1'P_7_2 + -2'P_7_3 + -3'P_7_4 + -4'P_7_5 + -5'P_7_6 + -5'P_7_7 + -5'P_7_8 + -5'P_7_9 + -5'P_7_10 + -5'P_7_11 + -5'P_7_12 + -5'P_7_13 + -5'P_7_14 + -4'P_7_15 + -3'P_7_16 + -2'P_7_17 + -1'P_7_18 + -1'P_8_2 + -2'P_8_3 + -3'P_8_4 + -4'P_8_5 + -5'P_8_6 + -6'P_8_7 + -6'P_8_8 + -6'P_8_9 + -6'P_8_10 + -6'P_8_11 + -6'P_8_12 + -6'P_8_13 + -5'P_8_14 + -4'P_8_15 + -3'P_8_16 + -2'P_8_17 + -1'P_8_18 + -1'P_9_2 + -2'P_9_3 + -3'P_9_4 + -4'P_9_5 + -5'P_9_6 + -6'P_9_7 + -7'P_9_8 + -7'P_9_9 + -7'P_9_10 + -7'P_9_11 + -7'P_9_12 + -6'P_9_13 + -5'P_9_14 + -4'P_9_15 + -3'P_9_16 + -2'P_9_17 + -1'P_9_18 + -1'P_10_2 + -2'P_10_3 + -3'P_10_4 + -4'P_10_5 + -5'P_10_6 + -6'P_10_7 + -7'P_10_8 + -8'P_10_9 + -8'P_10_10 + -8'P_10_11 + -7'P_10_12 + -6'P_10_13 + -5'P_10_14 + -4'P_10_15 + -3'P_10_16 + -2'P_10_17 + -1'P_10_18 + -1'P_11_2 + -2'P_11_3 + -3'P_11_4 + -4'P_11_5 + -5'P_11_6 + -6'P_11_7 + -7'P_11_8 + -8'P_11_9 + -9'P_11_10 + -8'P_11_11 + -7'P_11_12 + -6'P_11_13 + -5'P_11_14 + -4'P_11_15 + -3'P_11_16 + -2'P_11_17 + -1'P_11_18 + -1'P_12_2 + -2'P_12_3 + -3'P_12_4 + -4'P_12_5 + -5'P_12_6 + -6'P_12_7 + -7'P_12_8 + -8'P_12_9 + -8'P_12_10 + -8'P_12_11 + -7'P_12_12 + -6'P_12_13 + -5'P_12_14 + -4'P_12_15 + -3'P_12_16 + -2'P_12_17 + -1'P_12_18 + -1'P_13_2 + -2'P_13_3 + -3'P_13_4 + -4'P_13_5 + -5'P_13_6 + -6'P_13_7 + -7'P_13_8 + -7'P_13_9 + -7'P_13_10 + -7'P_13_11 + -7'P_13_12 + -6'P_13_13 + -5'P_13_14 + -4'P_13_15 + -3'P_13_16 + -2'P_13_17 + -1'P_13_18 + -1'P_14_2 + -2'P_14_3 + -3'P_14_4 + -4'P_14_5 + -5'P_14_6 + -6'P_14_7 + -6'P_14_8 + -6'P_14_9 + -6'P_14_10 + -6'P_14_11 + -6'P_14_12 + -6'P_14_13 + -5'P_14_14 + -4'P_14_15 + -3'P_14_16 + -2'P_14_17 + -1'P_14_18 + -1'P_15_2 + -2'P_15_3 + -3'P_15_4 + -4'P_15_5 + -5'P_15_6 + -5'P_15_7 + -5'P_15_8 + -5'P_15_9 + -5'P_15_10 + -5'P_15_11 + -5'P_15_12 + -5'P_15_13 + -5'P_15_14 + -4'P_15_15 + -3'P_15_16 + -2'P_15_17 + -1'P_15_18 + -1'P_16_2 + -2'P_16_3 + -3'P_16_4 + -4'P_16_5 + -4'P_16_6 + -4'P_16_7 + -4'P_16_8 + -4'P_16_9 + -4'P_16_10 + -4'P_16_11 + -4'P_16_12 + -4'P_16_13 + -4'P_16_14 + -4'P_16_15 + -3'P_16_16 + -2'P_16_17 + -1'P_16_18 + -1'P_17_2 + -2'P_17_3 + -3'P_17_4 + -3'P_17_5 + -3'P_17_6 + -3'P_17_7 + -3'P_17_8 + -3'P_17_9 + -3'P_17_10 + -3'P_17_11 + -3'P_17_12 + -3'P_17_13 + -3'P_17_14 + -3'P_17_15 + -3'P_17_16 + -2'P_17_17 + -1'P_17_18 + -1'P_18_2 + -2'P_18_3 + -2'P_18_4 + -2'P_18_5 + -2'P_18_6 + -2'P_18_7 + -2'P_18_8 + -2'P_18_9 + -2'P_18_10 + -2'P_18_11 + -2'P_18_12 + -2'P_18_13 + -2'P_18_14 + -2'P_18_15 + -2'P_18_16 + -2'P_18_17 + -1'P_18_18 + -1'P_19_2 + -1'P_19_3 + -1'P_19_4 + -1'P_19_5 + -1'P_19_6 + -1'P_19_7 + -1'P_19_8 + -1'P_19_9 + -1'P_19_10 + -1'P_19_11 + -1'P_19_12 + -1'P_19_13 + -1'P_19_14 + -1'P_19_15 + -1'P_19_16 + -1'P_19_17 + -1'P_19_18 + -1'cX_3 + -2'cX_4 + -3'cX_5 + -4'cX_6 + -5'cX_7 + -6'cX_8 + -7'cX_9 + -8'cX_10 + -9'cX_11 + -10'cX_12 + -11'cX_13 + -12'cX_14 + -13'cX_15 + -14'cX_16 + -15'cX_17 + -16'cX_18 + -17'cX_19 + -1'cY_2 + -2'cY_3 + -3'cY_4 + -4'cY_5 + -5'cY_6 + -6'cY_7 + -7'cY_8 + -8'cY_9 + -9'cY_10 + -10'cY_11 + -11'cY_12 + -12'cY_13 + -13'cY_14 + -14'cY_15 + -15'cY_16 + -16'cY_17 + -17'cY_18 + -18'cY_19 + 9'L_0 + 9'L_1 + 8'L_2 + 8'L_3 + 7'L_4 + 7'L_5 + 6'L_6 + 6'L_7 + 5'L_8 + 5'L_9 + 4'L_10 + 4'L_11 + 3'L_12 + 3'L_13 + 2'L_14 + 2'L_15 + L_16 + L_17 + -1'L_20 + L_23 + L_24 + 2'L_25 + 2'L_26 + 3'L_27 + 3'L_28 + 4'L_29 + 4'L_30 + 5'L_31 + 5'L_32 + 6'L_33 + 6'L_34 + 7'L_35 + 7'L_36 + 8'L_37 + 8'L_38 + R_2 + R_4 + R_5 + 2'R_6 + 2'R_7 + 3'R_8 + 3'R_9 + 4'R_10 + 4'R_11 + 5'R_12 + 5'R_13 + 6'R_14 + 6'R_15 + 7'R_16 + 7'R_17 + 8'R_18 + 8'R_19 + 9'R_20 + 9'R_21 + 10'R_22 + 11'R_23 + 13'R_24 + 14'R_25 + 16'R_26 + 17'R_27 + 19'R_28 + 20'R_29 + 22'R_30 + 23'R_31 + 25'R_32 + 26'R_33 + 28'R_34 + 29'R_35 + 31'R_36 + 32'R_37 + 34'R_38 + 35'R_39 = 333
invariant :P_2_18 + P_3_17 + P_3_18 + P_4_16 + P_4_17 + P_4_18 + P_5_15 + P_5_16 + P_5_17 + P_5_18 + P_6_14 + P_6_15 + P_6_16 + P_6_17 + P_6_18 + P_7_13 + P_7_14 + P_7_15 + P_7_16 + P_7_17 + P_7_18 + P_8_12 + P_8_13 + P_8_14 + P_8_15 + P_8_16 + P_8_17 + P_8_18 + P_9_11 + P_9_12 + P_9_13 + P_9_14 + P_9_15 + P_9_16 + P_9_17 + P_9_18 + P_10_10 + P_10_11 + P_10_12 + P_10_13 + P_10_14 + P_10_15 + P_10_16 + P_10_17 + P_10_18 + P_11_9 + P_11_10 + P_11_11 + P_11_12 + P_11_13 + P_11_14 + P_11_15 + P_11_16 + P_11_17 + P_11_18 + P_12_8 + P_12_9 + P_12_10 + P_12_11 + P_12_12 + P_12_13 + P_12_14 + P_12_15 + P_12_16 + P_12_17 + P_12_18 + P_13_7 + P_13_8 + P_13_9 + P_13_10 + P_13_11 + P_13_12 + P_13_13 + P_13_14 + P_13_15 + P_13_16 + P_13_17 + P_13_18 + P_14_6 + P_14_7 + P_14_8 + P_14_9 + P_14_10 + P_14_11 + P_14_12 + P_14_13 + P_14_14 + P_14_15 + P_14_16 + P_14_17 + P_14_18 + P_15_5 + P_15_6 + P_15_7 + P_15_8 + P_15_9 + P_15_10 + P_15_11 + P_15_12 + P_15_13 + P_15_14 + P_15_15 + P_15_16 + P_15_17 + P_15_18 + P_16_4 + P_16_5 + P_16_6 + P_16_7 + P_16_8 + P_16_9 + P_16_10 + P_16_11 + P_16_12 + P_16_13 + P_16_14 + P_16_15 + P_16_16 + P_16_17 + P_16_18 + P_17_3 + P_17_4 + P_17_5 + P_17_6 + P_17_7 + P_17_8 + P_17_9 + P_17_10 + P_17_11 + P_17_12 + P_17_13 + P_17_14 + P_17_15 + P_17_16 + P_17_17 + P_17_18 + P_18_2 + P_18_3 + P_18_4 + P_18_5 + P_18_6 + P_18_7 + P_18_8 + P_18_9 + P_18_10 + P_18_11 + P_18_12 + P_18_13 + P_18_14 + P_18_15 + P_18_16 + P_18_17 + P_18_18 + -1'cX_19 + -1'cY_19 + L_0 + L_38 + R_21 + R_22 + R_23 + R_24 + R_25 + R_26 + R_27 + R_28 + R_29 + R_30 + R_31 + R_32 + R_33 + R_34 + R_35 + R_36 + R_37 + R_38 + 2'R_39 = 20
invariant :P_5_0 + -1'P_6_2 + -1'P_6_3 + -1'P_6_4 + -1'P_6_5 + -1'P_6_6 + -1'P_6_7 + -1'P_6_8 + -1'P_6_9 + -1'P_6_10 + -1'P_6_11 + -1'P_6_12 + -1'P_6_13 + -1'P_6_14 + -1'P_6_15 + -1'P_6_16 + -1'P_6_17 + -1'P_6_18 + -1'P_7_3 + -1'P_7_4 + -1'P_7_5 + -1'P_7_6 + -1'P_7_7 + -1'P_7_8 + -1'P_7_9 + -1'P_7_10 + -1'P_7_11 + -1'P_7_12 + -1'P_7_13 + -1'P_7_14 + -1'P_7_15 + -1'P_7_16 + -1'P_7_17 + -1'P_8_4 + -1'P_8_5 + -1'P_8_6 + -1'P_8_7 + -1'P_8_8 + -1'P_8_9 + -1'P_8_10 + -1'P_8_11 + -1'P_8_12 + -1'P_8_13 + -1'P_8_14 + -1'P_8_15 + -1'P_8_16 + -1'P_9_5 + -1'P_9_6 + -1'P_9_7 + -1'P_9_8 + -1'P_9_9 + -1'P_9_10 + -1'P_9_11 + -1'P_9_12 + -1'P_9_13 + -1'P_9_14 + -1'P_9_15 + -1'P_10_6 + -1'P_10_7 + -1'P_10_8 + -1'P_10_9 + -1'P_10_10 + -1'P_10_11 + -1'P_10_12 + -1'P_10_13 + -1'P_10_14 + -1'P_11_7 + -1'P_11_8 + -1'P_11_9 + -1'P_11_10 + -1'P_11_11 + -1'P_11_12 + -1'P_11_13 + -1'P_12_8 + -1'P_12_9 + -1'P_12_10 + -1'P_12_11 + -1'P_12_12 + -1'P_13_9 + -1'P_13_10 + -1'P_13_11 + -1'P_14_10 + P_15_10 + P_16_9 + P_16_10 + P_16_11 + P_17_8 + P_17_9 + P_17_10 + P_17_11 + P_17_12 + P_18_7 + P_18_8 + P_18_9 + P_18_10 + P_18_11 + P_18_12 + P_18_13 + P_19_6 + P_19_7 + P_19_8 + P_19_9 + P_19_10 + P_19_11 + P_19_12 + P_19_13 + P_19_14 + -1'cX_6 + -1'cX_7 + -1'cX_8 + -1'cX_9 + -1'cX_10 + -1'cX_11 + -1'cX_12 + -1'cX_13 + -1'cX_14 + -1'cX_15 + -1'cX_16 + -1'cX_17 + -1'cX_18 + -1'cX_19 + L_24 + L_25 + L_26 + L_27 + L_28 + L_29 + L_30 + L_31 + L_32 + L_33 + L_34 + L_35 + L_36 + L_37 + L_38 + R_26 + R_27 + R_28 + R_29 + R_30 + R_31 + R_32 + R_33 + R_34 + R_35 + R_36 + R_37 + R_38 + R_39 = 15
invariant :P_10_19 + P_11_18 + P_12_17 + P_13_16 + P_14_15 + P_15_14 + P_16_13 + P_17_12 + P_18_11 + P_19_10 + R_30 = 1
invariant :P_12_0 + -1'P_13_2 + -1'P_13_3 + -1'P_13_4 + -1'P_13_5 + -1'P_13_6 + -1'P_13_7 + -1'P_13_8 + -1'P_13_9 + -1'P_13_10 + -1'P_13_11 + -1'P_13_12 + -1'P_13_13 + -1'P_13_14 + -1'P_13_15 + -1'P_13_16 + -1'P_13_17 + -1'P_13_18 + -1'P_14_3 + -1'P_14_4 + -1'P_14_5 + -1'P_14_6 + -1'P_14_7 + -1'P_14_8 + -1'P_14_9 + -1'P_14_10 + -1'P_14_11 + -1'P_14_12 + -1'P_14_13 + -1'P_14_14 + -1'P_14_15 + -1'P_14_16 + -1'P_14_17 + -1'P_15_4 + -1'P_15_5 + -1'P_15_6 + -1'P_15_7 + -1'P_15_8 + -1'P_15_9 + -1'P_15_10 + -1'P_15_11 + -1'P_15_12 + -1'P_15_13 + -1'P_15_14 + -1'P_15_15 + -1'P_15_16 + -1'P_16_5 + -1'P_16_6 + -1'P_16_7 + -1'P_16_8 + -1'P_16_9 + -1'P_16_10 + -1'P_16_11 + -1'P_16_12 + -1'P_16_13 + -1'P_16_14 + -1'P_16_15 + -1'P_17_6 + -1'P_17_7 + -1'P_17_8 + -1'P_17_9 + -1'P_17_10 + -1'P_17_11 + -1'P_17_12 + -1'P_17_13 + -1'P_17_14 + -1'P_18_7 + -1'P_18_8 + -1'P_18_9 + -1'P_18_10 + -1'P_18_11 + -1'P_18_12 + -1'P_18_13 + -1'P_19_8 + -1'P_19_9 + -1'P_19_10 + -1'P_19_11 + -1'P_19_12 + -1'cX_13 + -1'cX_14 + -1'cX_15 + -1'cX_16 + -1'cX_17 + -1'cX_18 + -1'cX_19 + L_31 + L_32 + L_33 + L_34 + L_35 + L_36 + L_37 + L_38 + R_33 + R_34 + R_35 + R_36 + R_37 + R_38 + R_39 = 8
invariant :P_12_19 + P_13_18 + P_14_17 + P_15_16 + P_16_15 + P_17_14 + P_18_13 + P_19_12 + R_32 = 1
invariant :P_14_0 + -1'P_15_2 + -1'P_15_3 + -1'P_15_4 + -1'P_15_5 + -1'P_15_6 + -1'P_15_7 + -1'P_15_8 + -1'P_15_9 + -1'P_15_10 + -1'P_15_11 + -1'P_15_12 + -1'P_15_13 + -1'P_15_14 + -1'P_15_15 + -1'P_15_16 + -1'P_15_17 + -1'P_15_18 + -1'P_16_3 + -1'P_16_4 + -1'P_16_5 + -1'P_16_6 + -1'P_16_7 + -1'P_16_8 + -1'P_16_9 + -1'P_16_10 + -1'P_16_11 + -1'P_16_12 + -1'P_16_13 + -1'P_16_14 + -1'P_16_15 + -1'P_16_16 + -1'P_16_17 + -1'P_17_4 + -1'P_17_5 + -1'P_17_6 + -1'P_17_7 + -1'P_17_8 + -1'P_17_9 + -1'P_17_10 + -1'P_17_11 + -1'P_17_12 + -1'P_17_13 + -1'P_17_14 + -1'P_17_15 + -1'P_17_16 + -1'P_18_5 + -1'P_18_6 + -1'P_18_7 + -1'P_18_8 + -1'P_18_9 + -1'P_18_10 + -1'P_18_11 + -1'P_18_12 + -1'P_18_13 + -1'P_18_14 + -1'P_18_15 + -1'P_19_6 + -1'P_19_7 + -1'P_19_8 + -1'P_19_9 + -1'P_19_10 + -1'P_19_11 + -1'P_19_12 + -1'P_19_13 + -1'P_19_14 + -1'cX_15 + -1'cX_16 + -1'cX_17 + -1'cX_18 + -1'cX_19 + L_33 + L_34 + L_35 + L_36 + L_37 + L_38 + R_35 + R_36 + R_37 + R_38 + R_39 = 6
invariant :P_9_0 + -1'P_10_2 + -1'P_10_3 + -1'P_10_4 + -1'P_10_5 + -1'P_10_6 + -1'P_10_7 + -1'P_10_8 + -1'P_10_9 + -1'P_10_10 + -1'P_10_11 + -1'P_10_12 + -1'P_10_13 + -1'P_10_14 + -1'P_10_15 + -1'P_10_16 + -1'P_10_17 + -1'P_10_18 + -1'P_11_3 + -1'P_11_4 + -1'P_11_5 + -1'P_11_6 + -1'P_11_7 + -1'P_11_8 + -1'P_11_9 + -1'P_11_10 + -1'P_11_11 + -1'P_11_12 + -1'P_11_13 + -1'P_11_14 + -1'P_11_15 + -1'P_11_16 + -1'P_11_17 + -1'P_12_4 + -1'P_12_5 + -1'P_12_6 + -1'P_12_7 + -1'P_12_8 + -1'P_12_9 + -1'P_12_10 + -1'P_12_11 + -1'P_12_12 + -1'P_12_13 + -1'P_12_14 + -1'P_12_15 + -1'P_12_16 + -1'P_13_5 + -1'P_13_6 + -1'P_13_7 + -1'P_13_8 + -1'P_13_9 + -1'P_13_10 + -1'P_13_11 + -1'P_13_12 + -1'P_13_13 + -1'P_13_14 + -1'P_13_15 + -1'P_14_6 + -1'P_14_7 + -1'P_14_8 + -1'P_14_9 + -1'P_14_10 + -1'P_14_11 + -1'P_14_12 + -1'P_14_13 + -1'P_14_14 + -1'P_15_7 + -1'P_15_8 + -1'P_15_9 + -1'P_15_10 + -1'P_15_11 + -1'P_15_12 + -1'P_15_13 + -1'P_16_8 + -1'P_16_9 + -1'P_16_10 + -1'P_16_11 + -1'P_16_12 + -1'P_17_9 + -1'P_17_10 + -1'P_17_11 + -1'P_18_10 + P_19_10 + -1'cX_10 + -1'cX_11 + -1'cX_12 + -1'cX_13 + -1'cX_14 + -1'cX_15 + -1'cX_16 + -1'cX_17 + -1'cX_18 + -1'cX_19 + L_28 + L_29 + L_30 + L_31 + L_32 + L_33 + L_34 + L_35 + L_36 + L_37 + L_38 + R_30 + R_31 + R_32 + R_33 + R_34 + R_35 + R_36 + R_37 + R_38 + R_39 = 11
invariant :L_0 + L_2 + L_4 + L_6 + L_8 + L_10 + L_12 + L_14 + L_16 + L_18 + L_20 + L_22 + L_24 + L_26 + L_28 + L_30 + L_32 + L_34 + L_36 + L_38 + -1'R_2 + -1'R_4 + -1'R_6 + -1'R_8 + -1'R_10 + -1'R_12 + -1'R_14 + -1'R_16 + -1'R_18 + -1'R_20 + -1'R_22 + -1'R_24 + -1'R_26 + -1'R_28 + -1'R_30 + -1'R_32 + -1'R_34 + -1'R_36 + -1'R_38 = 1
invariant :P_6_0 + -1'P_7_2 + -1'P_7_3 + -1'P_7_4 + -1'P_7_5 + -1'P_7_6 + -1'P_7_7 + -1'P_7_8 + -1'P_7_9 + -1'P_7_10 + -1'P_7_11 + -1'P_7_12 + -1'P_7_13 + -1'P_7_14 + -1'P_7_15 + -1'P_7_16 + -1'P_7_17 + -1'P_7_18 + -1'P_8_3 + -1'P_8_4 + -1'P_8_5 + -1'P_8_6 + -1'P_8_7 + -1'P_8_8 + -1'P_8_9 + -1'P_8_10 + -1'P_8_11 + -1'P_8_12 + -1'P_8_13 + -1'P_8_14 + -1'P_8_15 + -1'P_8_16 + -1'P_8_17 + -1'P_9_4 + -1'P_9_5 + -1'P_9_6 + -1'P_9_7 + -1'P_9_8 + -1'P_9_9 + -1'P_9_10 + -1'P_9_11 + -1'P_9_12 + -1'P_9_13 + -1'P_9_14 + -1'P_9_15 + -1'P_9_16 + -1'P_10_5 + -1'P_10_6 + -1'P_10_7 + -1'P_10_8 + -1'P_10_9 + -1'P_10_10 + -1'P_10_11 + -1'P_10_12 + -1'P_10_13 + -1'P_10_14 + -1'P_10_15 + -1'P_11_6 + -1'P_11_7 + -1'P_11_8 + -1'P_11_9 + -1'P_11_10 + -1'P_11_11 + -1'P_11_12 + -1'P_11_13 + -1'P_11_14 + -1'P_12_7 + -1'P_12_8 + -1'P_12_9 + -1'P_12_10 + -1'P_12_11 + -1'P_12_12 + -1'P_12_13 + -1'P_13_8 + -1'P_13_9 + -1'P_13_10 + -1'P_13_11 + -1'P_13_12 + -1'P_14_9 + -1'P_14_10 + -1'P_14_11 + -1'P_15_10 + P_16_10 + P_17_9 + P_17_10 + P_17_11 + P_18_8 + P_18_9 + P_18_10 + P_18_11 + P_18_12 + P_19_7 + P_19_8 + P_19_9 + P_19_10 + P_19_11 + P_19_12 + P_19_13 + -1'cX_7 + -1'cX_8 + -1'cX_9 + -1'cX_10 + -1'cX_11 + -1'cX_12 + -1'cX_13 + -1'cX_14 + -1'cX_15 + -1'cX_16 + -1'cX_17 + -1'cX_18 + -1'cX_19 + L_25 + L_26 + L_27 + L_28 + L_29 + L_30 + L_31 + L_32 + L_33 + L_34 + L_35 + L_36 + L_37 + L_38 + R_27 + R_28 + R_29 + R_30 + R_31 + R_32 + R_33 + R_34 + R_35 + R_36 + R_37 + R_38 + R_39 = 14
invariant :cX_0 + cX_3 + 3'cX_4 + 6'cX_5 + 10'cX_6 + 15'cX_7 + 21'cX_8 + 28'cX_9 + 36'cX_10 + 45'cX_11 + 55'cX_12 + 66'cX_13 + 78'cX_14 + 91'cX_15 + 105'cX_16 + 120'cX_17 + 136'cX_18 + 153'cX_19 + cY_2 + 3'cY_3 + 6'cY_4 + 10'cY_5 + 15'cY_6 + 21'cY_7 + 28'cY_8 + 36'cY_9 + 45'cY_10 + 55'cY_11 + 66'cY_12 + 78'cY_13 + 91'cY_14 + 105'cY_15 + 120'cY_16 + 136'cY_17 + 153'cY_18 + 171'cY_19 + -99'L_0 + -90'L_1 + -80'L_2 + -72'L_3 + -63'L_4 + -56'L_5 + -48'L_6 + -42'L_7 + -35'L_8 + -30'L_9 + -24'L_10 + -20'L_11 + -15'L_12 + -12'L_13 + -8'L_14 + -6'L_15 + -3'L_16 + -2'L_17 + L_20 + -2'L_23 + -3'L_24 + -6'L_25 + -8'L_26 + -12'L_27 + -15'L_28 + -20'L_29 + -24'L_30 + -30'L_31 + -35'L_32 + -42'L_33 + -48'L_34 + -56'L_35 + -63'L_36 + -72'L_37 + -80'L_38 + -1'R_1 + -1'R_2 + -1'R_4 + -1'R_5 + -3'R_6 + -4'R_7 + -7'R_8 + -9'R_9 + -13'R_10 + -16'R_11 + -21'R_12 + -25'R_13 + -31'R_14 + -36'R_15 + -43'R_16 + -49'R_17 + -57'R_18 + -64'R_19 + -73'R_20 + -81'R_21 + -91'R_22 + -100'R_23 + -111'R_24 + -121'R_25 + -133'R_26 + -144'R_27 + -157'R_28 + -169'R_29 + -183'R_30 + -196'R_31 + -211'R_32 + -225'R_33 + -241'R_34 + -256'R_35 + -273'R_36 + -289'R_37 + -307'R_38 + -324'R_39 = -3177
invariant :P_7_0 + -1'P_8_2 + -1'P_8_3 + -1'P_8_4 + -1'P_8_5 + -1'P_8_6 + -1'P_8_7 + -1'P_8_8 + -1'P_8_9 + -1'P_8_10 + -1'P_8_11 + -1'P_8_12 + -1'P_8_13 + -1'P_8_14 + -1'P_8_15 + -1'P_8_16 + -1'P_8_17 + -1'P_8_18 + -1'P_9_3 + -1'P_9_4 + -1'P_9_5 + -1'P_9_6 + -1'P_9_7 + -1'P_9_8 + -1'P_9_9 + -1'P_9_10 + -1'P_9_11 + -1'P_9_12 + -1'P_9_13 + -1'P_9_14 + -1'P_9_15 + -1'P_9_16 + -1'P_9_17 + -1'P_10_4 + -1'P_10_5 + -1'P_10_6 + -1'P_10_7 + -1'P_10_8 + -1'P_10_9 + -1'P_10_10 + -1'P_10_11 + -1'P_10_12 + -1'P_10_13 + -1'P_10_14 + -1'P_10_15 + -1'P_10_16 + -1'P_11_5 + -1'P_11_6 + -1'P_11_7 + -1'P_11_8 + -1'P_11_9 + -1'P_11_10 + -1'P_11_11 + -1'P_11_12 + -1'P_11_13 + -1'P_11_14 + -1'P_11_15 + -1'P_12_6 + -1'P_12_7 + -1'P_12_8 + -1'P_12_9 + -1'P_12_10 + -1'P_12_11 + -1'P_12_12 + -1'P_12_13 + -1'P_12_14 + -1'P_13_7 + -1'P_13_8 + -1'P_13_9 + -1'P_13_10 + -1'P_13_11 + -1'P_13_12 + -1'P_13_13 + -1'P_14_8 + -1'P_14_9 + -1'P_14_10 + -1'P_14_11 + -1'P_14_12 + -1'P_15_9 + -1'P_15_10 + -1'P_15_11 + -1'P_16_10 + P_17_10 + P_18_9 + P_18_10 + P_18_11 + P_19_8 + P_19_9 + P_19_10 + P_19_11 + P_19_12 + -1'cX_8 + -1'cX_9 + -1'cX_10 + -1'cX_11 + -1'cX_12 + -1'cX_13 + -1'cX_14 + -1'cX_15 + -1'cX_16 + -1'cX_17 + -1'cX_18 + -1'cX_19 + L_26 + L_27 + L_28 + L_29 + L_30 + L_31 + L_32 + L_33 + L_34 + L_35 + L_36 + L_37 + L_38 + R_28 + R_29 + R_30 + R_31 + R_32 + R_33 + R_34 + R_35 + R_36 + R_37 + R_38 + R_39 = 13
invariant :P_0_9 + P_3_9 + P_4_8 + P_4_9 + P_4_10 + P_5_7 + P_5_8 + 2'P_5_9 + P_5_10 + P_5_11 + P_6_6 + P_6_7 + 2'P_6_8 + 2'P_6_9 + 2'P_6_10 + P_6_11 + P_6_12 + P_7_5 + P_7_6 + 2'P_7_7 + 2'P_7_8 + 3'P_7_9 + 2'P_7_10 + 2'P_7_11 + P_7_12 + P_7_13 + P_8_4 + P_8_5 + 2'P_8_6 + 2'P_8_7 + 3'P_8_8 + 3'P_8_9 + 3'P_8_10 + 2'P_8_11 + 2'P_8_12 + P_8_13 + P_8_14 + P_9_3 + P_9_4 + 2'P_9_5 + 2'P_9_6 + 3'P_9_7 + 3'P_9_8 + 4'P_9_9 + 3'P_9_10 + 3'P_9_11 + 2'P_9_12 + 2'P_9_13 + P_9_14 + P_9_15 + P_10_2 + P_10_3 + 2'P_10_4 + 2'P_10_5 + 3'P_10_6 + 3'P_10_7 + 4'P_10_8 + 4'P_10_9 + 4'P_10_10 + 3'P_10_11 + 3'P_10_12 + 2'P_10_13 + 2'P_10_14 + P_10_15 + P_10_16 + P_11_3 + P_11_4 + 2'P_11_5 + 2'P_11_6 + 3'P_11_7 + 3'P_11_8 + 4'P_11_9 + 3'P_11_10 + 3'P_11_11 + 2'P_11_12 + 2'P_11_13 + P_11_14 + P_11_15 + -1'P_11_18 + P_12_4 + P_12_5 + 2'P_12_6 + 2'P_12_7 + 3'P_12_8 + 3'P_12_9 + 3'P_12_10 + 2'P_12_11 + 2'P_12_12 + P_12_13 + P_12_14 + -1'P_12_17 + P_13_5 + P_13_6 + 2'P_13_7 + 2'P_13_8 + 3'P_13_9 + 2'P_13_10 + 2'P_13_11 + P_13_12 + P_13_13 + -1'P_13_16 + P_14_6 + P_14_7 + 2'P_14_8 + 2'P_14_9 + 2'P_14_10 + P_14_11 + P_14_12 + -1'P_14_15 + P_15_7 + P_15_8 + 2'P_15_9 + P_15_10 + P_15_11 + -1'P_15_14 + P_16_8 + P_16_9 + P_16_10 + -1'P_16_13 + P_17_9 + -1'P_17_12 + -1'P_18_11 + -1'P_19_10 + -1'cX_11 + -2'cX_12 + -3'cX_13 + -4'cX_14 + -5'cX_15 + -6'cX_16 + -7'cX_17 + -8'cX_18 + -9'cX_19 + -1'cY_10 + -2'cY_11 + -3'cY_12 + -4'cY_13 + -5'cY_14 + -6'cY_15 + -7'cY_16 + -8'cY_17 + -9'cY_18 + -10'cY_19 + 6'L_0 + 5'L_1 + 5'L_2 + 4'L_3 + 4'L_4 + 3'L_5 + 3'L_6 + 2'L_7 + 2'L_8 + L_9 + L_10 + L_30 + L_31 + 2'L_32 + 2'L_33 + 3'L_34 + 3'L_35 + 4'L_36 + 4'L_37 + 5'L_38 + R_13 + R_14 + 2'R_15 + 2'R_16 + 3'R_17 + 3'R_18 + 4'R_19 + 4'R_20 + 5'R_21 + 5'R_22 + 6'R_23 + 6'R_24 + 7'R_25 + 7'R_26 + 8'R_27 + 8'R_28 + 9'R_29 + 9'R_30 + 11'R_31 + 12'R_32 + 13'R_33 + 14'R_34 + 15'R_35 + 16'R_36 + 17'R_37 + 18'R_38 + 19'R_39 = 186
invariant :P_19_0 + L_38 = 1
invariant :P_1_7 + -1'P_3_6 + -1'P_3_7 + -1'P_3_8 + -1'P_4_5 + -2'P_4_6 + -2'P_4_7 + -2'P_4_8 + -1'P_4_9 + -1'P_5_4 + -2'P_5_5 + -3'P_5_6 + -3'P_5_7 + -3'P_5_8 + -2'P_5_9 + -1'P_5_10 + -1'P_6_3 + -2'P_6_4 + -3'P_6_5 + -4'P_6_6 + -4'P_6_7 + -4'P_6_8 + -3'P_6_9 + -2'P_6_10 + -1'P_6_11 + -1'P_7_2 + -2'P_7_3 + -3'P_7_4 + -4'P_7_5 + -5'P_7_6 + -5'P_7_7 + -5'P_7_8 + -4'P_7_9 + -3'P_7_10 + -2'P_7_11 + -1'P_7_12 + -1'P_8_2 + -2'P_8_3 + -3'P_8_4 + -4'P_8_5 + -5'P_8_6 + -5'P_8_7 + -5'P_8_8 + -4'P_8_9 + -3'P_8_10 + -2'P_8_11 + -1'P_8_12 + P_8_14 + P_8_15 + P_8_16 + P_8_17 + P_8_18 + -1'P_9_3 + -2'P_9_4 + -3'P_9_5 + -4'P_9_6 + -4'P_9_7 + -4'P_9_8 + -3'P_9_9 + -2'P_9_10 + -1'P_9_11 + P_9_13 + 2'P_9_14 + 3'P_9_15 + 3'P_9_16 + 3'P_9_17 + 2'P_9_18 + -1'P_10_4 + -2'P_10_5 + -3'P_10_6 + -3'P_10_7 + -3'P_10_8 + -2'P_10_9 + -1'P_10_10 + P_10_12 + 2'P_10_13 + 3'P_10_14 + 4'P_10_15 + 5'P_10_16 + 4'P_10_17 + 2'P_10_18 + -1'P_11_5 + -2'P_11_6 + -2'P_11_7 + -2'P_11_8 + -1'P_11_9 + P_11_11 + 2'P_11_12 + 3'P_11_13 + 4'P_11_14 + 5'P_11_15 + 5'P_11_16 + 4'P_11_17 + 2'P_11_18 + -1'P_12_6 + -1'P_12_7 + -1'P_12_8 + P_12_10 + 2'P_12_11 + 3'P_12_12 + 4'P_12_13 + 5'P_12_14 + 5'P_12_15 + 4'P_12_16 + 3'P_12_17 + 2'P_12_18 + P_13_9 + 2'P_13_10 + 3'P_13_11 + 4'P_13_12 + 5'P_13_13 + 5'P_13_14 + 4'P_13_15 + 3'P_13_16 + 2'P_13_17 + P_13_18 + P_14_7 + P_14_8 + 2'P_14_9 + 3'P_14_10 + 4'P_14_11 + 5'P_14_12 + 5'P_14_13 + 4'P_14_14 + 3'P_14_15 + 2'P_14_16 + P_14_17 + P_15_7 + 2'P_15_8 + 3'P_15_9 + 4'P_15_10 + 5'P_15_11 + 5'P_15_12 + 4'P_15_13 + 3'P_15_14 + 2'P_15_15 + P_15_16 + P_16_7 + 2'P_16_8 + 4'P_16_9 + 5'P_16_10 + 5'P_16_11 + 4'P_16_12 + 3'P_16_13 + 2'P_16_14 + P_16_15 + P_17_7 + 2'P_17_8 + 4'P_17_9 + 5'P_17_10 + 4'P_17_11 + 3'P_17_12 + 2'P_17_13 + P_17_14 + P_18_7 + 2'P_18_8 + 3'P_18_9 + 3'P_18_10 + 3'P_18_11 + 2'P_18_12 + P_18_13 + P_19_7 + P_19_8 + P_19_9 + P_19_10 + P_19_11 + P_19_12 + cX_8 + 3'cX_9 + 5'cX_10 + 7'cX_11 + 9'cX_12 + 11'cX_13 + 13'cX_14 + 15'cX_15 + 17'cX_16 + 19'cX_17 + 21'cX_18 + 23'cX_19 + cY_7 + 2'cY_8 + 4'cY_9 + 6'cY_10 + 8'cY_11 + 10'cY_12 + 12'cY_13 + 14'cY_14 + 16'cY_15 + 18'cY_16 + 20'cY_17 + 22'cY_18 + 24'cY_19 + -13'L_0 + -12'L_1 + -11'L_2 + -10'L_3 + -9'L_4 + -8'L_5 + -7'L_6 + -6'L_7 + -5'L_8 + -4'L_9 + -3'L_10 + -2'L_11 + -1'L_12 + -1'L_27 + -2'L_28 + -3'L_29 + -4'L_30 + -5'L_31 + -6'L_32 + -7'L_33 + -8'L_34 + -9'L_35 + -10'L_36 + -11'L_37 + -12'L_38 + -1'R_10 + -2'R_11 + -3'R_12 + -4'R_13 + -5'R_14 + -6'R_15 + -7'R_16 + -8'R_17 + -9'R_18 + -10'R_19 + -11'R_20 + -12'R_21 + -13'R_22 + -14'R_23 + -15'R_24 + -16'R_25 + -17'R_26 + -18'R_27 + -20'R_28 + -23'R_29 + -26'R_30 + -29'R_31 + -32'R_32 + -35'R_33 + -37'R_34 + -39'R_35 + -41'R_36 + -43'R_37 + -45'R_38 + -47'R_39 = -456
invariant :P_9_19 + P_10_18 + P_11_17 + P_12_16 + P_13_15 + P_14_14 + P_15_13 + P_16_12 + P_17_11 + P_18_10 + P_19_9 + R_29 = 1
invariant :P_0_6 + P_3_6 + P_4_5 + P_4_6 + P_4_7 + P_5_4 + P_5_5 + 2'P_5_6 + P_5_7 + P_5_8 + P_6_3 + P_6_4 + 2'P_6_5 + 2'P_6_6 + 2'P_6_7 + P_6_8 + P_6_9 + P_7_2 + P_7_3 + 2'P_7_4 + 2'P_7_5 + 3'P_7_6 + 2'P_7_7 + 2'P_7_8 + P_7_9 + P_7_10 + P_8_3 + P_8_4 + 2'P_8_5 + 2'P_8_6 + 2'P_8_7 + P_8_8 + P_8_9 + -1'P_8_12 + -1'P_8_13 + -1'P_8_14 + -1'P_8_15 + -1'P_8_16 + -1'P_8_17 + -1'P_8_18 + P_9_4 + P_9_5 + 2'P_9_6 + P_9_7 + P_9_8 + -1'P_9_11 + -1'P_9_12 + -2'P_9_13 + -2'P_9_14 + -2'P_9_15 + -2'P_9_16 + -2'P_9_17 + -1'P_9_18 + P_10_5 + P_10_6 + P_10_7 + -1'P_10_10 + -1'P_10_11 + -2'P_10_12 + -2'P_10_13 + -3'P_10_14 + -3'P_10_15 + -3'P_10_16 + -2'P_10_17 + -1'P_10_18 + P_11_6 + -1'P_11_9 + -1'P_11_10 + -2'P_11_11 + -2'P_11_12 + -3'P_11_13 + -3'P_11_14 + -4'P_11_15 + -3'P_11_16 + -2'P_11_17 + -1'P_11_18 + -1'P_12_8 + -1'P_12_9 + -2'P_12_10 + -2'P_12_11 + -3'P_12_12 + -3'P_12_13 + -4'P_12_14 + -3'P_12_15 + -3'P_12_16 + -2'P_12_17 + -1'P_12_18 + -1'P_13_7 + -1'P_13_8 + -2'P_13_9 + -2'P_13_10 + -3'P_13_11 + -3'P_13_12 + -4'P_13_13 + -3'P_13_14 + -3'P_13_15 + -2'P_13_16 + -2'P_13_17 + -1'P_13_18 + -1'P_14_7 + -2'P_14_8 + -2'P_14_9 + -3'P_14_10 + -3'P_14_11 + -4'P_14_12 + -3'P_14_13 + -3'P_14_14 + -2'P_14_15 + -2'P_14_16 + -1'P_14_17 + -1'P_14_18 + -1'P_15_7 + -2'P_15_8 + -3'P_15_9 + -3'P_15_10 + -4'P_15_11 + -3'P_15_12 + -3'P_15_13 + -2'P_15_14 + -2'P_15_15 + -1'P_15_16 + -1'P_15_17 + -1'P_16_7 + -2'P_16_8 + -3'P_16_9 + -4'P_16_10 + -3'P_16_11 + -3'P_16_12 + -2'P_16_13 + -2'P_16_14 + -1'P_16_15 + -1'P_16_16 + -1'P_17_7 + -2'P_17_8 + -3'P_17_9 + -3'P_17_10 + -3'P_17_11 + -2'P_17_12 + -2'P_17_13 + -1'P_17_14 + -1'P_17_15 + -1'P_18_7 + -2'P_18_8 + -2'P_18_9 + -2'P_18_10 + -2'P_18_11 + -2'P_18_12 + -1'P_18_13 + -1'P_18_14 + -1'P_19_7 + -1'P_19_8 + -1'P_19_9 + -1'P_19_10 + -1'P_19_11 + -1'P_19_12 + -1'P_19_13 + -1'cX_8 + -2'cX_9 + -3'cX_10 + -4'cX_11 + -5'cX_12 + -6'cX_13 + -7'cX_14 + -8'cX_15 + -9'cX_16 + -10'cX_17 + -11'cX_18 + -12'cX_19 + -1'cY_7 + -2'cY_8 + -3'cY_9 + -4'cY_10 + -5'cY_11 + -6'cY_12 + -7'cY_13 + -8'cY_14 + -9'cY_15 + -10'cY_16 + -11'cY_17 + -12'cY_18 + -13'cY_19 + 7'L_0 + 7'L_1 + 6'L_2 + 6'L_3 + 5'L_4 + 5'L_5 + 4'L_6 + 4'L_7 + 3'L_8 + 3'L_9 + 2'L_10 + 2'L_11 + L_12 + L_13 + L_27 + L_28 + 2'L_29 + 2'L_30 + 3'L_31 + 3'L_32 + 4'L_33 + 4'L_34 + 5'L_35 + 5'L_36 + 6'L_37 + 6'L_38 + R_10 + R_11 + 2'R_12 + 2'R_13 + 3'R_14 + 3'R_15 + 4'R_16 + 4'R_17 + 5'R_18 + 5'R_19 + 6'R_20 + 6'R_21 + 7'R_22 + 7'R_23 + 8'R_24 + 8'R_25 + 9'R_26 + 9'R_27 + 11'R_28 + 12'R_29 + 14'R_30 + 15'R_31 + 17'R_32 + 18'R_33 + 20'R_34 + 21'R_35 + 22'R_36 + 23'R_37 + 24'R_38 + 25'R_39 = 241
invariant :P_1_5 + -1'P_3_4 + -1'P_3_5 + -1'P_3_6 + -1'P_4_3 + -2'P_4_4 + -2'P_4_5 + -2'P_4_6 + -1'P_4_7 + -1'P_5_2 + -2'P_5_3 + -3'P_5_4 + -3'P_5_5 + -3'P_5_6 + -2'P_5_7 + -1'P_5_8 + -1'P_6_2 + -2'P_6_3 + -3'P_6_4 + -3'P_6_5 + -3'P_6_6 + -2'P_6_7 + -1'P_6_8 + P_6_10 + P_6_11 + P_6_12 + P_6_13 + P_6_14 + P_6_15 + P_6_16 + P_6_17 + P_6_18 + -1'P_7_3 + -2'P_7_4 + -2'P_7_5 + -2'P_7_6 + -1'P_7_7 + P_7_9 + 2'P_7_10 + 3'P_7_11 + 3'P_7_12 + 3'P_7_13 + 3'P_7_14 + 3'P_7_15 + 3'P_7_16 + 3'P_7_17 + 2'P_7_18 + -1'P_8_4 + -1'P_8_5 + -1'P_8_6 + P_8_8 + 2'P_8_9 + 3'P_8_10 + 4'P_8_11 + 5'P_8_12 + 5'P_8_13 + 5'P_8_14 + 5'P_8_15 + 5'P_8_16 + 4'P_8_17 + 2'P_8_18 + P_9_7 + 2'P_9_8 + 3'P_9_9 + 4'P_9_10 + 5'P_9_11 + 6'P_9_12 + 7'P_9_13 + 7'P_9_14 + 7'P_9_15 + 6'P_9_16 + 4'P_9_17 + 2'P_9_18 + P_10_5 + P_10_6 + 2'P_10_7 + 3'P_10_8 + 4'P_10_9 + 5'P_10_10 + 6'P_10_11 + 7'P_10_12 + 8'P_10_13 + 9'P_10_14 + 8'P_10_15 + 6'P_10_16 + 4'P_10_17 + 2'P_10_18 + P_11_5 + 2'P_11_6 + 3'P_11_7 + 4'P_11_8 + 5'P_11_9 + 6'P_11_10 + 7'P_11_11 + 8'P_11_12 + 9'P_11_13 + 9'P_11_14 + 8'P_11_15 + 6'P_11_16 + 4'P_11_17 + 2'P_11_18 + P_12_5 + 2'P_12_6 + 4'P_12_7 + 5'P_12_8 + 6'P_12_9 + 7'P_12_10 + 8'P_12_11 + 9'P_12_12 + 9'P_12_13 + 8'P_12_14 + 7'P_12_15 + 6'P_12_16 + 4'P_12_17 + 2'P_12_18 + P_13_5 + 2'P_13_6 + 4'P_13_7 + 6'P_13_8 + 7'P_13_9 + 8'P_13_10 + 9'P_13_11 + 9'P_13_12 + 8'P_13_13 + 7'P_13_14 + 6'P_13_15 + 5'P_13_16 + 4'P_13_17 + 2'P_13_18 + P_14_5 + 2'P_14_6 + 4'P_14_7 + 6'P_14_8 + 8'P_14_9 + 9'P_14_10 + 9'P_14_11 + 8'P_14_12 + 7'P_14_13 + 6'P_14_14 + 5'P_14_15 + 4'P_14_16 + 3'P_14_17 + 2'P_14_18 + P_15_5 + 2'P_15_6 + 4'P_15_7 + 6'P_15_8 + 8'P_15_9 + 9'P_15_10 + 8'P_15_11 + 7'P_15_12 + 6'P_15_13 + 5'P_15_14 + 4'P_15_15 + 3'P_15_16 + 2'P_15_17 + P_15_18 + P_16_5 + 2'P_16_6 + 4'P_16_7 + 6'P_16_8 + 7'P_16_9 + 7'P_16_10 + 7'P_16_11 + 6'P_16_12 + 5'P_16_13 + 4'P_16_14 + 3'P_16_15 + 2'P_16_16 + P_16_17 + P_17_5 + 2'P_17_6 + 4'P_17_7 + 5'P_17_8 + 5'P_17_9 + 5'P_17_10 + 5'P_17_11 + 5'P_17_12 + 4'P_17_13 + 3'P_17_14 + 2'P_17_15 + P_17_16 + P_18_5 + 2'P_18_6 + 3'P_18_7 + 3'P_18_8 + 3'P_18_9 + 3'P_18_10 + 3'P_18_11 + 3'P_18_12 + 3'P_18_13 + 2'P_18_14 + P_18_15 + P_19_5 + P_19_6 + P_19_7 + P_19_8 + P_19_9 + P_19_10 + P_19_11 + P_19_12 + P_19_13 + P_19_14 + cX_6 + 3'cX_7 + 5'cX_8 + 7'cX_9 + 9'cX_10 + 11'cX_11 + 13'cX_12 + 15'cX_13 + 17'cX_14 + 19'cX_15 + 21'cX_16 + 23'cX_17 + 25'cX_18 + 27'cX_19 + cY_5 + 2'cY_6 + 4'cY_7 + 6'cY_8 + 8'cY_9 + 10'cY_10 + 12'cY_11 + 14'cY_12 + 16'cY_13 + 18'cY_14 + 20'cY_15 + 22'cY_16 + 24'cY_17 + 26'cY_18 + 28'cY_19 + -15'L_0 + -14'L_1 + -13'L_2 + -12'L_3 + -11'L_4 + -10'L_5 + -9'L_6 + -8'L_7 + -7'L_8 + -6'L_9 + -5'L_10 + -4'L_11 + -3'L_12 + -2'L_13 + -1'L_14 + -1'L_25 + -2'L_26 + -3'L_27 + -4'L_28 + -5'L_29 + -6'L_30 + -7'L_31 + -8'L_32 + -9'L_33 + -10'L_34 + -11'L_35 + -12'L_36 + -13'L_37 + -14'L_38 + -1'R_8 + -2'R_9 + -3'R_10 + -4'R_11 + -5'R_12 + -6'R_13 + -7'R_14 + -8'R_15 + -9'R_16 + -10'R_17 + -11'R_18 + -12'R_19 + -13'R_20 + -14'R_21 + -15'R_22 + -16'R_23 + -17'R_24 + -18'R_25 + -20'R_26 + -23'R_27 + -26'R_28 + -29'R_29 + -32'R_30 + -35'R_31 + -38'R_32 + -41'R_33 + -44'R_34 + -47'R_35 + -49'R_36 + -51'R_37 + -53'R_38 + -55'R_39 = -532
invariant :P_2_5 + P_3_4 + P_3_5 + P_3_6 + P_4_3 + P_4_4 + 2'P_4_5 + P_4_6 + P_4_7 + P_5_2 + P_5_3 + 2'P_5_4 + 2'P_5_5 + 2'P_5_6 + P_5_7 + P_5_8 + P_6_3 + P_6_4 + 2'P_6_5 + P_6_6 + P_6_7 + -1'P_6_10 + -1'P_6_11 + -1'P_6_12 + -1'P_6_13 + -1'P_6_14 + -1'P_6_15 + -1'P_6_16 + -1'P_6_17 + -1'P_6_18 + P_7_4 + P_7_5 + P_7_6 + -1'P_7_9 + -1'P_7_10 + -2'P_7_11 + -2'P_7_12 + -2'P_7_13 + -2'P_7_14 + -2'P_7_15 + -2'P_7_16 + -2'P_7_17 + -1'P_7_18 + P_8_5 + -1'P_8_8 + -1'P_8_9 + -2'P_8_10 + -2'P_8_11 + -3'P_8_12 + -3'P_8_13 + -3'P_8_14 + -3'P_8_15 + -3'P_8_16 + -2'P_8_17 + -1'P_8_18 + -1'P_9_7 + -1'P_9_8 + -2'P_9_9 + -2'P_9_10 + -3'P_9_11 + -3'P_9_12 + -4'P_9_13 + -4'P_9_14 + -4'P_9_15 + -3'P_9_16 + -2'P_9_17 + -1'P_9_18 + -1'P_10_6 + -1'P_10_7 + -2'P_10_8 + -2'P_10_9 + -3'P_10_10 + -3'P_10_11 + -4'P_10_12 + -4'P_10_13 + -5'P_10_14 + -4'P_10_15 + -3'P_10_16 + -2'P_10_17 + -1'P_10_18 + -1'P_11_6 + -2'P_11_7 + -2'P_11_8 + -3'P_11_9 + -3'P_11_10 + -4'P_11_11 + -4'P_11_12 + -5'P_11_13 + -4'P_11_14 + -4'P_11_15 + -3'P_11_16 + -2'P_11_17 + -1'P_11_18 + -1'P_12_6 + -2'P_12_7 + -3'P_12_8 + -3'P_12_9 + -4'P_12_10 + -4'P_12_11 + -5'P_12_12 + -4'P_12_13 + -4'P_12_14 + -3'P_12_15 + -3'P_12_16 + -2'P_12_17 + -1'P_12_18 + -1'P_13_6 + -2'P_13_7 + -3'P_13_8 + -4'P_13_9 + -4'P_13_10 + -5'P_13_11 + -4'P_13_12 + -4'P_13_13 + -3'P_13_14 + -3'P_13_15 + -2'P_13_16 + -2'P_13_17 + -1'P_13_18 + -1'P_14_6 + -2'P_14_7 + -3'P_14_8 + -4'P_14_9 + -5'P_14_10 + -4'P_14_11 + -4'P_14_12 + -3'P_14_13 + -3'P_14_14 + -2'P_14_15 + -2'P_14_16 + -1'P_14_17 + -1'P_14_18 + -1'P_15_6 + -2'P_15_7 + -3'P_15_8 + -4'P_15_9 + -4'P_15_10 + -4'P_15_11 + -3'P_15_12 + -3'P_15_13 + -2'P_15_14 + -2'P_15_15 + -1'P_15_16 + -1'P_15_17 + -1'P_16_6 + -2'P_16_7 + -3'P_16_8 + -3'P_16_9 + -3'P_16_10 + -3'P_16_11 + -3'P_16_12 + -2'P_16_13 + -2'P_16_14 + -1'P_16_15 + -1'P_16_16 + -1'P_17_6 + -2'P_17_7 + -2'P_17_8 + -2'P_17_9 + -2'P_17_10 + -2'P_17_11 + -2'P_17_12 + -2'P_17_13 + -1'P_17_14 + -1'P_17_15 + -1'P_18_6 + -1'P_18_7 + -1'P_18_8 + -1'P_18_9 + -1'P_18_10 + -1'P_18_11 + -1'P_18_12 + -1'P_18_13 + -1'P_18_14 + -1'cX_6 + -2'cX_7 + -3'cX_8 + -4'cX_9 + -5'cX_10 + -6'cX_11 + -7'cX_12 + -8'cX_13 + -9'cX_14 + -10'cX_15 + -11'cX_16 + -12'cX_17 + -13'cX_18 + -14'cX_19 + -1'cY_6 + -2'cY_7 + -3'cY_8 + -4'cY_9 + -5'cY_10 + -6'cY_11 + -7'cY_12 + -8'cY_13 + -9'cY_14 + -10'cY_15 + -11'cY_16 + -12'cY_17 + -13'cY_18 + -14'cY_19 + 7'L_0 + 7'L_1 + 6'L_2 + 6'L_3 + 5'L_4 + 5'L_5 + 4'L_6 + 4'L_7 + 3'L_8 + 3'L_9 + 2'L_10 + 2'L_11 + L_12 + L_13 + L_25 + L_26 + 2'L_27 + 2'L_28 + 3'L_29 + 3'L_30 + 4'L_31 + 4'L_32 + 5'L_33 + 5'L_34 + 6'L_35 + 6'L_36 + 7'L_37 + 7'L_38 + R_8 + R_9 + 2'R_10 + 2'R_11 + 3'R_12 + 3'R_13 + 4'R_14 + 4'R_15 + 5'R_16 + 5'R_17 + 6'R_18 + 6'R_19 + 7'R_20 + 7'R_21 + 8'R_22 + 8'R_23 + 9'R_24 + 9'R_25 + 11'R_26 + 12'R_27 + 14'R_28 + 15'R_29 + 17'R_30 + 18'R_31 + 20'R_32 + 21'R_33 + 23'R_34 + 24'R_35 + 25'R_36 + 26'R_37 + 27'R_38 + 28'R_39 = 273
invariant :P_1_10 + -1'P_3_9 + -1'P_3_10 + -1'P_3_11 + -1'P_4_8 + -2'P_4_9 + -2'P_4_10 + -2'P_4_11 + -1'P_4_12 + -1'P_5_7 + -2'P_5_8 + -3'P_5_9 + -3'P_5_10 + -3'P_5_11 + -2'P_5_12 + -1'P_5_13 + -1'P_6_6 + -2'P_6_7 + -3'P_6_8 + -4'P_6_9 + -4'P_6_10 + -4'P_6_11 + -3'P_6_12 + -2'P_6_13 + -1'P_6_14 + -1'P_7_5 + -2'P_7_6 + -3'P_7_7 + -4'P_7_8 + -5'P_7_9 + -5'P_7_10 + -5'P_7_11 + -4'P_7_12 + -3'P_7_13 + -2'P_7_14 + -1'P_7_15 + -1'P_8_4 + -2'P_8_5 + -3'P_8_6 + -4'P_8_7 + -5'P_8_8 + -6'P_8_9 + -6'P_8_10 + -6'P_8_11 + -5'P_8_12 + -4'P_8_13 + -3'P_8_14 + -2'P_8_15 + -1'P_8_16 + -1'P_9_3 + -2'P_9_4 + -3'P_9_5 + -4'P_9_6 + -5'P_9_7 + -6'P_9_8 + -7'P_9_9 + -7'P_9_10 + -7'P_9_11 + -6'P_9_12 + -5'P_9_13 + -4'P_9_14 + -3'P_9_15 + -2'P_9_16 + -1'P_9_17 + -1'P_10_2 + -2'P_10_3 + -3'P_10_4 + -4'P_10_5 + -5'P_10_6 + -6'P_10_7 + -7'P_10_8 + -8'P_10_9 + -8'P_10_10 + -8'P_10_11 + -7'P_10_12 + -6'P_10_13 + -5'P_10_14 + -4'P_10_15 + -3'P_10_16 + -2'P_10_17 + -1'P_10_18 + -1'P_11_2 + -2'P_11_3 + -3'P_11_4 + -4'P_11_5 + -5'P_11_6 + -6'P_11_7 + -7'P_11_8 + -8'P_11_9 + -8'P_11_10 + -8'P_11_11 + -7'P_11_12 + -6'P_11_13 + -5'P_11_14 + -4'P_11_15 + -3'P_11_16 + -2'P_11_17 + -1'P_11_18 + -1'P_12_3 + -2'P_12_4 + -3'P_12_5 + -4'P_12_6 + -5'P_12_7 + -6'P_12_8 + -7'P_12_9 + -7'P_12_10 + -7'P_12_11 + -6'P_12_12 + -5'P_12_13 + -4'P_12_14 + -3'P_12_15 + -2'P_12_16 + -1'P_12_17 + -1'P_13_4 + -2'P_13_5 + -3'P_13_6 + -4'P_13_7 + -5'P_13_8 + -6'P_13_9 + -6'P_13_10 + -6'P_13_11 + -5'P_13_12 + -4'P_13_13 + -3'P_13_14 + -2'P_13_15 + -1'P_13_16 + -1'P_14_5 + -2'P_14_6 + -3'P_14_7 + -4'P_14_8 + -5'P_14_9 + -5'P_14_10 + -5'P_14_11 + -4'P_14_12 + -3'P_14_13 + -2'P_14_14 + -1'P_14_15 + -1'P_15_6 + -2'P_15_7 + -3'P_15_8 + -4'P_15_9 + -4'P_15_10 + -4'P_15_11 + -3'P_15_12 + -2'P_15_13 + -1'P_15_14 + -1'P_16_7 + -2'P_16_8 + -3'P_16_9 + -3'P_16_10 + -3'P_16_11 + -2'P_16_12 + -1'P_16_13 + -1'P_17_8 + -2'P_17_9 + -2'P_17_10 + -2'P_17_11 + -1'P_17_12 + -1'P_18_9 + -1'P_18_10 + -1'P_18_11 + cX_11 + 3'cX_12 + 5'cX_13 + 7'cX_14 + 9'cX_15 + 11'cX_16 + 13'cX_17 + 15'cX_18 + 17'cX_19 + cY_10 + 2'cY_11 + 4'cY_12 + 6'cY_13 + 8'cY_14 + 10'cY_15 + 12'cY_16 + 14'cY_17 + 16'cY_18 + 18'cY_19 + -10'L_0 + -9'L_1 + -8'L_2 + -7'L_3 + -6'L_4 + -5'L_5 + -4'L_6 + -3'L_7 + -2'L_8 + -1'L_9 + -1'L_30 + -2'L_31 + -3'L_32 + -4'L_33 + -5'L_34 + -6'L_35 + -7'L_36 + -8'L_37 + -9'L_38 + -1'R_13 + -2'R_14 + -3'R_15 + -4'R_16 + -5'R_17 + -6'R_18 + -7'R_19 + -8'R_20 + -9'R_21 + -10'R_22 + -11'R_23 + -12'R_24 + -13'R_25 + -14'R_26 + -15'R_27 + -16'R_28 + -17'R_29 + -18'R_30 + -19'R_31 + -21'R_32 + -23'R_33 + -25'R_34 + -27'R_35 + -29'R_36 + -31'R_37 + -33'R_38 + -35'R_39 = -342
invariant :P_2_15 + P_3_14 + P_3_15 + P_3_16 + P_4_13 + P_4_14 + 2'P_4_15 + P_4_16 + P_4_17 + P_5_12 + P_5_13 + 2'P_5_14 + 2'P_5_15 + 2'P_5_16 + P_5_17 + P_5_18 + P_6_11 + P_6_12 + 2'P_6_13 + 2'P_6_14 + 3'P_6_15 + 2'P_6_16 + 2'P_6_17 + P_6_18 + P_7_10 + P_7_11 + 2'P_7_12 + 2'P_7_13 + 3'P_7_14 + 3'P_7_15 + 3'P_7_16 + 2'P_7_17 + P_7_18 + P_8_9 + P_8_10 + 2'P_8_11 + 2'P_8_12 + 3'P_8_13 + 3'P_8_14 + 4'P_8_15 + 3'P_8_16 + 2'P_8_17 + P_8_18 + P_9_8 + P_9_9 + 2'P_9_10 + 2'P_9_11 + 3'P_9_12 + 3'P_9_13 + 4'P_9_14 + 4'P_9_15 + 3'P_9_16 + 2'P_9_17 + P_9_18 + P_10_7 + P_10_8 + 2'P_10_9 + 2'P_10_10 + 3'P_10_11 + 3'P_10_12 + 4'P_10_13 + 4'P_10_14 + 4'P_10_15 + 3'P_10_16 + 2'P_10_17 + P_10_18 + P_11_6 + P_11_7 + 2'P_11_8 + 2'P_11_9 + 3'P_11_10 + 3'P_11_11 + 4'P_11_12 + 4'P_11_13 + 4'P_11_14 + 4'P_11_15 + 3'P_11_16 + 2'P_11_17 + P_11_18 + P_12_5 + P_12_6 + 2'P_12_7 + 2'P_12_8 + 3'P_12_9 + 3'P_12_10 + 4'P_12_11 + 4'P_12_12 + 4'P_12_13 + 4'P_12_14 + 4'P_12_15 + 3'P_12_16 + 2'P_12_17 + P_12_18 + P_13_4 + P_13_5 + 2'P_13_6 + 2'P_13_7 + 3'P_13_8 + 3'P_13_9 + 4'P_13_10 + 4'P_13_11 + 4'P_13_12 + 4'P_13_13 + 4'P_13_14 + 4'P_13_15 + 3'P_13_16 + 2'P_13_17 + P_13_18 + P_14_3 + P_14_4 + 2'P_14_5 + 2'P_14_6 + 3'P_14_7 + 3'P_14_8 + 4'P_14_9 + 4'P_14_10 + 4'P_14_11 + 4'P_14_12 + 4'P_14_13 + 4'P_14_14 + 4'P_14_15 + 3'P_14_16 + 2'P_14_17 + P_14_18 + P_15_2 + P_15_3 + 2'P_15_4 + 2'P_15_5 + 3'P_15_6 + 3'P_15_7 + 4'P_15_8 + 4'P_15_9 + 4'P_15_10 + 4'P_15_11 + 4'P_15_12 + 4'P_15_13 + 4'P_15_14 + 4'P_15_15 + 3'P_15_16 + 2'P_15_17 + P_15_18 + P_16_3 + P_16_4 + 2'P_16_5 + 2'P_16_6 + 3'P_16_7 + 3'P_16_8 + 3'P_16_9 + 3'P_16_10 + 3'P_16_11 + 3'P_16_12 + 3'P_16_13 + 3'P_16_14 + 3'P_16_15 + 2'P_16_16 + P_16_17 + P_17_4 + P_17_5 + 2'P_17_6 + 2'P_17_7 + 2'P_17_8 + 2'P_17_9 + 2'P_17_10 + 2'P_17_11 + 2'P_17_12 + 2'P_17_13 + 2'P_17_14 + 2'P_17_15 + P_17_16 + P_18_5 + P_18_6 + P_18_7 + P_18_8 + P_18_9 + P_18_10 + P_18_11 + P_18_12 + P_18_13 + P_18_14 + P_18_15 + -1'cX_16 + -2'cX_17 + -3'cX_18 + -4'cX_19 + -1'cY_16 + -2'cY_17 + -3'cY_18 + -4'cY_19 + 2'L_0 + 2'L_1 + L_2 + L_3 + L_35 + L_36 + 2'L_37 + 2'L_38 + R_18 + R_19 + 2'R_20 + 2'R_21 + 3'R_22 + 3'R_23 + 4'R_24 + 4'R_25 + 4'R_26 + 4'R_27 + 4'R_28 + 4'R_29 + 4'R_30 + 4'R_31 + 4'R_32 + 4'R_33 + 4'R_34 + 4'R_35 + 5'R_36 + 6'R_37 + 7'R_38 + 8'R_39 = 78
invariant :P_6_19 + P_7_18 + P_8_17 + P_9_16 + P_10_15 + P_11_14 + P_12_13 + P_13_12 + P_14_11 + P_15_10 + P_16_9 + P_17_8 + P_18_7 + P_19_6 + R_26 = 1
invariant :cY_1 + 2'cY_2 + 3'cY_3 + 4'cY_4 + 5'cY_5 + 6'cY_6 + 7'cY_7 + 8'cY_8 + 9'cY_9 + 10'cY_10 + 11'cY_11 + 12'cY_12 + 13'cY_13 + 14'cY_14 + 15'cY_15 + 16'cY_16 + 17'cY_17 + 18'cY_18 + 19'cY_19 + -9'L_0 + -9'L_1 + -8'L_2 + -8'L_3 + -7'L_4 + -7'L_5 + -6'L_6 + -6'L_7 + -5'L_8 + -5'L_9 + -4'L_10 + -4'L_11 + -3'L_12 + -3'L_13 + -2'L_14 + -2'L_15 + -1'L_16 + -1'L_17 + L_20 + L_21 + 2'L_22 + 2'L_23 + 3'L_24 + 3'L_25 + 4'L_26 + 4'L_27 + 5'L_28 + 5'L_29 + 6'L_30 + 6'L_31 + 7'L_32 + 7'L_33 + 8'L_34 + 8'L_35 + 9'L_36 + 9'L_37 + 10'L_38 + -1'R_2 + -1'R_3 + -2'R_4 + -2'R_5 + -3'R_6 + -3'R_7 + -4'R_8 + -4'R_9 + -5'R_10 + -5'R_11 + -6'R_12 + -6'R_13 + -7'R_14 + -7'R_15 + -8'R_16 + -8'R_17 + -9'R_18 + -9'R_19 + -10'R_20 + -10'R_21 + -11'R_22 + -11'R_23 + -12'R_24 + -12'R_25 + -13'R_26 + -13'R_27 + -14'R_28 + -14'R_29 + -15'R_30 + -15'R_31 + -16'R_32 + -16'R_33 + -17'R_34 + -17'R_35 + -18'R_36 + -18'R_37 + -19'R_38 + -19'R_39 = -180
invariant :P_0_12 + P_3_12 + P_4_11 + P_4_12 + P_4_13 + P_5_10 + P_5_11 + 2'P_5_12 + P_5_13 + P_5_14 + P_6_9 + P_6_10 + 2'P_6_11 + 2'P_6_12 + 2'P_6_13 + P_6_14 + P_6_15 + P_7_8 + P_7_9 + 2'P_7_10 + 2'P_7_11 + 3'P_7_12 + 2'P_7_13 + 2'P_7_14 + P_7_15 + P_7_16 + P_8_7 + P_8_8 + 2'P_8_9 + 2'P_8_10 + 3'P_8_11 + 3'P_8_12 + 3'P_8_13 + 2'P_8_14 + 2'P_8_15 + P_8_16 + P_8_17 + P_9_6 + P_9_7 + 2'P_9_8 + 2'P_9_9 + 3'P_9_10 + 3'P_9_11 + 4'P_9_12 + 3'P_9_13 + 3'P_9_14 + 2'P_9_15 + 2'P_9_16 + P_9_17 + P_9_18 + P_10_5 + P_10_6 + 2'P_10_7 + 2'P_10_8 + 3'P_10_9 + 3'P_10_10 + 4'P_10_11 + 4'P_10_12 + 4'P_10_13 + 3'P_10_14 + 3'P_10_15 + 2'P_10_16 + 2'P_10_17 + P_10_18 + P_11_4 + P_11_5 + 2'P_11_6 + 2'P_11_7 + 3'P_11_8 + 3'P_11_9 + 4'P_11_10 + 4'P_11_11 + 5'P_11_12 + 4'P_11_13 + 4'P_11_14 + 3'P_11_15 + 3'P_11_16 + 2'P_11_17 + P_11_18 + P_12_3 + P_12_4 + 2'P_12_5 + 2'P_12_6 + 3'P_12_7 + 3'P_12_8 + 4'P_12_9 + 4'P_12_10 + 5'P_12_11 + 5'P_12_12 + 5'P_12_13 + 4'P_12_14 + 4'P_12_15 + 3'P_12_16 + 2'P_12_17 + P_12_18 + P_13_2 + P_13_3 + 2'P_13_4 + 2'P_13_5 + 3'P_13_6 + 3'P_13_7 + 4'P_13_8 + 4'P_13_9 + 5'P_13_10 + 5'P_13_11 + 6'P_13_12 + 5'P_13_13 + 5'P_13_14 + 4'P_13_15 + 3'P_13_16 + 2'P_13_17 + P_13_18 + P_14_3 + P_14_4 + 2'P_14_5 + 2'P_14_6 + 3'P_14_7 + 3'P_14_8 + 4'P_14_9 + 4'P_14_10 + 5'P_14_11 + 5'P_14_12 + 5'P_14_13 + 4'P_14_14 + 3'P_14_15 + 2'P_14_16 + P_14_17 + P_15_4 + P_15_5 + 2'P_15_6 + 2'P_15_7 + 3'P_15_8 + 3'P_15_9 + 4'P_15_10 + 4'P_15_11 + 5'P_15_12 + 4'P_15_13 + 3'P_15_14 + 2'P_15_15 + P_15_16 + P_16_5 + P_16_6 + 2'P_16_7 + 2'P_16_8 + 3'P_16_9 + 3'P_16_10 + 4'P_16_11 + 4'P_16_12 + 3'P_16_13 + 2'P_16_14 + P_16_15 + P_17_6 + P_17_7 + 2'P_17_8 + 2'P_17_9 + 3'P_17_10 + 3'P_17_11 + 3'P_17_12 + 2'P_17_13 + P_17_14 + P_18_7 + P_18_8 + 2'P_18_9 + 2'P_18_10 + 2'P_18_11 + 2'P_18_12 + P_18_13 + P_19_8 + P_19_9 + P_19_10 + P_19_11 + P_19_12 + -1'cX_14 + -2'cX_15 + -3'cX_16 + -4'cX_17 + -5'cX_18 + -6'cX_19 + -1'cY_13 + -2'cY_14 + -3'cY_15 + -4'cY_16 + -5'cY_17 + -6'cY_18 + -7'cY_19 + 4'L_0 + 4'L_1 + 3'L_2 + 3'L_3 + 2'L_4 + 2'L_5 + L_6 + L_7 + L_33 + L_34 + 2'L_35 + 2'L_36 + 3'L_37 + 3'L_38 + R_16 + R_17 + 2'R_18 + 2'R_19 + 3'R_20 + 3'R_21 + 4'R_22 + 4'R_23 + 5'R_24 + 5'R_25 + 6'R_26 + 6'R_27 + 7'R_28 + 7'R_29 + 7'R_30 + 7'R_31 + 7'R_32 + 7'R_33 + 8'R_34 + 9'R_35 + 10'R_36 + 11'R_37 + 12'R_38 + 13'R_39 = 130
invariant :P_6_1 + P_6_2 + P_6_3 + P_6_4 + P_6_5 + P_6_6 + P_6_7 + P_6_8 + P_6_9 + P_6_10 + P_6_11 + P_6_12 + P_6_13 + P_6_14 + P_6_15 + P_6_16 + P_6_17 + P_6_18 + P_7_2 + P_7_3 + P_7_4 + P_7_5 + P_7_6 + P_7_7 + P_7_8 + P_7_9 + P_7_10 + P_7_11 + P_7_12 + P_7_13 + P_7_14 + P_7_15 + P_7_16 + P_7_17 + P_8_3 + P_8_4 + P_8_5 + P_8_6 + P_8_7 + P_8_8 + P_8_9 + P_8_10 + P_8_11 + P_8_12 + P_8_13 + P_8_14 + P_8_15 + P_8_16 + P_9_4 + P_9_5 + P_9_6 + P_9_7 + P_9_8 + P_9_9 + P_9_10 + P_9_11 + P_9_12 + P_9_13 + P_9_14 + P_9_15 + P_10_5 + P_10_6 + P_10_7 + P_10_8 + P_10_9 + P_10_10 + P_10_11 + P_10_12 + P_10_13 + P_10_14 + P_11_6 + P_11_7 + P_11_8 + P_11_9 + P_11_10 + P_11_11 + P_11_12 + P_11_13 + P_12_7 + P_12_8 + P_12_9 + P_12_10 + P_12_11 + P_12_12 + P_13_8 + P_13_9 + P_13_10 + P_13_11 + P_14_9 + P_14_10 + -1'P_16_9 + -1'P_16_10 + -1'P_17_8 + -1'P_17_9 + -1'P_17_10 + -1'P_17_11 + -1'P_18_7 + -1'P_18_8 + -1'P_18_9 + -1'P_18_10 + -1'P_18_11 + -1'P_18_12 + -1'P_19_6 + -1'P_19_7 + -1'P_19_8 + -1'P_19_9 + -1'P_19_10 + -1'P_19_11 + -1'P_19_12 + -1'P_19_13 + cX_6 + cX_7 + cX_8 + cX_9 + cX_10 + cX_11 + cX_12 + cX_13 + cX_14 + cX_15 + cX_16 + cX_17 + cX_18 + cX_19 + -1'L_25 + -1'L_26 + -1'L_27 + -1'L_28 + -1'L_29 + -1'L_30 + -1'L_31 + -1'L_32 + -1'L_33 + -1'L_34 + -1'L_35 + -1'L_36 + -1'L_37 + -1'L_38 + -1'R_26 + -1'R_27 + -1'R_28 + -1'R_29 + -1'R_30 + -1'R_31 + -1'R_32 + -1'R_33 + -1'R_34 + -1'R_35 + -1'R_36 + -1'R_37 + -1'R_38 + -1'R_39 = -14
invariant :P_0_3 + P_3_3 + P_4_2 + P_4_3 + P_4_4 + P_5_3 + -1'P_5_6 + -1'P_5_7 + -1'P_5_8 + -1'P_5_9 + -1'P_5_10 + -1'P_5_11 + -1'P_5_12 + -1'P_5_13 + -1'P_5_14 + -1'P_5_15 + -1'P_5_16 + -1'P_5_17 + -1'P_5_18 + -1'P_6_5 + -1'P_6_6 + -2'P_6_7 + -2'P_6_8 + -2'P_6_9 + -2'P_6_10 + -2'P_6_11 + -2'P_6_12 + -2'P_6_13 + -2'P_6_14 + -2'P_6_15 + -2'P_6_16 + -2'P_6_17 + -1'P_6_18 + -1'P_7_4 + -1'P_7_5 + -2'P_7_6 + -2'P_7_7 + -3'P_7_8 + -3'P_7_9 + -3'P_7_10 + -3'P_7_11 + -3'P_7_12 + -3'P_7_13 + -3'P_7_14 + -3'P_7_15 + -3'P_7_16 + -2'P_7_17 + -1'P_7_18 + -1'P_8_4 + -2'P_8_5 + -2'P_8_6 + -3'P_8_7 + -3'P_8_8 + -4'P_8_9 + -4'P_8_10 + -4'P_8_11 + -4'P_8_12 + -4'P_8_13 + -4'P_8_14 + -4'P_8_15 + -3'P_8_16 + -2'P_8_17 + -1'P_8_18 + -1'P_9_4 + -2'P_9_5 + -3'P_9_6 + -3'P_9_7 + -4'P_9_8 + -4'P_9_9 + -5'P_9_10 + -5'P_9_11 + -5'P_9_12 + -5'P_9_13 + -5'P_9_14 + -4'P_9_15 + -3'P_9_16 + -2'P_9_17 + -1'P_9_18 + -1'P_10_4 + -2'P_10_5 + -3'P_10_6 + -4'P_10_7 + -4'P_10_8 + -5'P_10_9 + -5'P_10_10 + -6'P_10_11 + -6'P_10_12 + -6'P_10_13 + -5'P_10_14 + -4'P_10_15 + -3'P_10_16 + -2'P_10_17 + -1'P_10_18 + -1'P_11_4 + -2'P_11_5 + -3'P_11_6 + -4'P_11_7 + -5'P_11_8 + -5'P_11_9 + -6'P_11_10 + -6'P_11_11 + -7'P_11_12 + -6'P_11_13 + -5'P_11_14 + -4'P_11_15 + -3'P_11_16 + -2'P_11_17 + -1'P_11_18 + -1'P_12_4 + -2'P_12_5 + -3'P_12_6 + -4'P_12_7 + -5'P_12_8 + -6'P_12_9 + -6'P_12_10 + -7'P_12_11 + -6'P_12_12 + -6'P_12_13 + -5'P_12_14 + -4'P_12_15 + -3'P_12_16 + -2'P_12_17 + -1'P_12_18 + -1'P_13_4 + -2'P_13_5 + -3'P_13_6 + -4'P_13_7 + -5'P_13_8 + -6'P_13_9 + -7'P_13_10 + -6'P_13_11 + -6'P_13_12 + -5'P_13_13 + -5'P_13_14 + -4'P_13_15 + -3'P_13_16 + -2'P_13_17 + -1'P_13_18 + -1'P_14_4 + -2'P_14_5 + -3'P_14_6 + -4'P_14_7 + -5'P_14_8 + -6'P_14_9 + -6'P_14_10 + -6'P_14_11 + -5'P_14_12 + -5'P_14_13 + -4'P_14_14 + -4'P_14_15 + -3'P_14_16 + -2'P_14_17 + -1'P_14_18 + -1'P_15_4 + -2'P_15_5 + -3'P_15_6 + -4'P_15_7 + -5'P_15_8 + -5'P_15_9 + -5'P_15_10 + -5'P_15_11 + -5'P_15_12 + -4'P_15_13 + -4'P_15_14 + -3'P_15_15 + -3'P_15_16 + -2'P_15_17 + -1'P_15_18 + -1'P_16_4 + -2'P_16_5 + -3'P_16_6 + -4'P_16_7 + -4'P_16_8 + -4'P_16_9 + -4'P_16_10 + -4'P_16_11 + -4'P_16_12 + -4'P_16_13 + -3'P_16_14 + -3'P_16_15 + -2'P_16_16 + -2'P_16_17 + -1'P_16_18 + -1'P_17_4 + -2'P_17_5 + -3'P_17_6 + -3'P_17_7 + -3'P_17_8 + -3'P_17_9 + -3'P_17_10 + -3'P_17_11 + -3'P_17_12 + -3'P_17_13 + -3'P_17_14 + -2'P_17_15 + -2'P_17_16 + -1'P_17_17 + -1'P_17_18 + -1'P_18_4 + -2'P_18_5 + -2'P_18_6 + -2'P_18_7 + -2'P_18_8 + -2'P_18_9 + -2'P_18_10 + -2'P_18_11 + -2'P_18_12 + -2'P_18_13 + -2'P_18_14 + -2'P_18_15 + -1'P_18_16 + -1'P_18_17 + -1'P_19_4 + -1'P_19_5 + -1'P_19_6 + -1'P_19_7 + -1'P_19_8 + -1'P_19_9 + -1'P_19_10 + -1'P_19_11 + -1'P_19_12 + -1'P_19_13 + -1'P_19_14 + -1'P_19_15 + -1'P_19_16 + -1'cX_5 + -2'cX_6 + -3'cX_7 + -4'cX_8 + -5'cX_9 + -6'cX_10 + -7'cX_11 + -8'cX_12 + -9'cX_13 + -10'cX_14 + -11'cX_15 + -12'cX_16 + -13'cX_17 + -14'cX_18 + -15'cX_19 + -1'cY_4 + -2'cY_5 + -3'cY_6 + -4'cY_7 + -5'cY_8 + -6'cY_9 + -7'cY_10 + -8'cY_11 + -9'cY_12 + -10'cY_13 + -11'cY_14 + -12'cY_15 + -13'cY_16 + -14'cY_17 + -15'cY_18 + -16'cY_19 + 9'L_0 + 8'L_1 + 8'L_2 + 7'L_3 + 7'L_4 + 6'L_5 + 6'L_6 + 5'L_7 + 5'L_8 + 4'L_9 + 4'L_10 + 3'L_11 + 3'L_12 + 2'L_13 + 2'L_14 + L_15 + L_16 + L_24 + L_25 + 2'L_26 + 2'L_27 + 3'L_28 + 3'L_29 + 4'L_30 + 4'L_31 + 5'L_32 + 5'L_33 + 6'L_34 + 6'L_35 + 7'L_36 + 7'L_37 + 8'L_38 + R_7 + R_8 + 2'R_9 + 2'R_10 + 3'R_11 + 3'R_12 + 4'R_13 + 4'R_14 + 5'R_15 + 5'R_16 + 6'R_17 + 6'R_18 + 7'R_19 + 7'R_20 + 8'R_21 + 8'R_22 + 9'R_23 + 9'R_24 + 11'R_25 + 12'R_26 + 14'R_27 + 15'R_28 + 17'R_29 + 18'R_30 + 20'R_31 + 21'R_32 + 23'R_33 + 24'R_34 + 26'R_35 + 27'R_36 + 29'R_37 + 30'R_38 + 31'R_39 = 297
invariant :P_14_19 + P_15_18 + P_16_17 + P_17_16 + P_18_15 + P_19_14 + R_34 = 1
invariant :P_15_19 + P_16_18 + P_17_17 + P_18_16 + P_19_15 + R_35 = 1
invariant :P_7_1 + P_7_2 + P_7_3 + P_7_4 + P_7_5 + P_7_6 + P_7_7 + P_7_8 + P_7_9 + P_7_10 + P_7_11 + P_7_12 + P_7_13 + P_7_14 + P_7_15 + P_7_16 + P_7_17 + P_7_18 + P_8_2 + P_8_3 + P_8_4 + P_8_5 + P_8_6 + P_8_7 + P_8_8 + P_8_9 + P_8_10 + P_8_11 + P_8_12 + P_8_13 + P_8_14 + P_8_15 + P_8_16 + P_8_17 + P_9_3 + P_9_4 + P_9_5 + P_9_6 + P_9_7 + P_9_8 + P_9_9 + P_9_10 + P_9_11 + P_9_12 + P_9_13 + P_9_14 + P_9_15 + P_9_16 + P_10_4 + P_10_5 + P_10_6 + P_10_7 + P_10_8 + P_10_9 + P_10_10 + P_10_11 + P_10_12 + P_10_13 + P_10_14 + P_10_15 + P_11_5 + P_11_6 + P_11_7 + P_11_8 + P_11_9 + P_11_10 + P_11_11 + P_11_12 + P_11_13 + P_11_14 + P_12_6 + P_12_7 + P_12_8 + P_12_9 + P_12_10 + P_12_11 + P_12_12 + P_12_13 + P_13_7 + P_13_8 + P_13_9 + P_13_10 + P_13_11 + P_13_12 + P_14_8 + P_14_9 + P_14_10 + P_14_11 + P_15_9 + P_15_10 + -1'P_17_9 + -1'P_17_10 + -1'P_18_8 + -1'P_18_9 + -1'P_18_10 + -1'P_18_11 + -1'P_19_7 + -1'P_19_8 + -1'P_19_9 + -1'P_19_10 + -1'P_19_11 + -1'P_19_12 + cX_7 + cX_8 + cX_9 + cX_10 + cX_11 + cX_12 + cX_13 + cX_14 + cX_15 + cX_16 + cX_17 + cX_18 + cX_19 + -1'L_26 + -1'L_27 + -1'L_28 + -1'L_29 + -1'L_30 + -1'L_31 + -1'L_32 + -1'L_33 + -1'L_34 + -1'L_35 + -1'L_36 + -1'L_37 + -1'L_38 + -1'R_27 + -1'R_28 + -1'R_29 + -1'R_30 + -1'R_31 + -1'R_32 + -1'R_33 + -1'R_34 + -1'R_35 + -1'R_36 + -1'R_37 + -1'R_38 + -1'R_39 = -13
invariant :P_0_19 + L_0 = 1
invariant :cX_2 + 3'cX_3 + 6'cX_4 + 10'cX_5 + 15'cX_6 + 21'cX_7 + 28'cX_8 + 36'cX_9 + 45'cX_10 + 55'cX_11 + 66'cX_12 + 78'cX_13 + 91'cX_14 + 105'cX_15 + 120'cX_16 + 136'cX_17 + 153'cX_18 + 171'cX_19 + cY_2 + 3'cY_3 + 6'cY_4 + 10'cY_5 + 15'cY_6 + 21'cY_7 + 28'cY_8 + 36'cY_9 + 45'cY_10 + 55'cY_11 + 66'cY_12 + 78'cY_13 + 91'cY_14 + 105'cY_15 + 120'cY_16 + 136'cY_17 + 153'cY_18 + 171'cY_19 + -90'L_0 + -81'L_1 + -72'L_2 + -64'L_3 + -56'L_4 + -49'L_5 + -42'L_6 + -36'L_7 + -30'L_8 + -25'L_9 + -20'L_10 + -16'L_11 + -12'L_12 + -9'L_13 + -6'L_14 + -4'L_15 + -2'L_16 + -1'L_17 + -1'L_21 + -2'L_22 + -4'L_23 + -6'L_24 + -9'L_25 + -12'L_26 + -16'L_27 + -20'L_28 + -25'L_29 + -30'L_30 + -36'L_31 + -42'L_32 + -49'L_33 + -56'L_34 + -64'L_35 + -72'L_36 + -81'L_37 + -90'L_38 + -1'R_4 + -2'R_5 + -4'R_6 + -6'R_7 + -9'R_8 + -12'R_9 + -16'R_10 + -20'R_11 + -25'R_12 + -30'R_13 + -36'R_14 + -42'R_15 + -49'R_16 + -56'R_17 + -64'R_18 + -72'R_19 + -81'R_20 + -90'R_21 + -100'R_22 + -110'R_23 + -121'R_24 + -132'R_25 + -144'R_26 + -156'R_27 + -169'R_28 + -182'R_29 + -196'R_30 + -210'R_31 + -225'R_32 + -240'R_33 + -256'R_34 + -272'R_35 + -289'R_36 + -306'R_37 + -324'R_38 + -342'R_39 = -3339
invariant :L_1 + L_3 + L_5 + L_7 + L_9 + L_11 + L_13 + L_15 + L_17 + L_19 + L_21 + L_23 + L_25 + L_27 + L_29 + L_31 + L_33 + L_35 + L_37 + -1'R_1 + -1'R_3 + -1'R_5 + -1'R_7 + -1'R_9 + -1'R_11 + -1'R_13 + -1'R_15 + -1'R_17 + -1'R_19 + -1'R_21 + -1'R_23 + -1'R_25 + -1'R_27 + -1'R_29 + -1'R_31 + -1'R_33 + -1'R_35 + -1'R_37 + -1'R_39 = -1
invariant :P_1_15 + -1'P_3_14 + -1'P_3_15 + -1'P_3_16 + -1'P_4_13 + -2'P_4_14 + -2'P_4_15 + -2'P_4_16 + -1'P_4_17 + -1'P_5_12 + -2'P_5_13 + -3'P_5_14 + -3'P_5_15 + -3'P_5_16 + -2'P_5_17 + -1'P_5_18 + -1'P_6_11 + -2'P_6_12 + -3'P_6_13 + -4'P_6_14 + -4'P_6_15 + -4'P_6_16 + -3'P_6_17 + -2'P_6_18 + -1'P_7_10 + -2'P_7_11 + -3'P_7_12 + -4'P_7_13 + -5'P_7_14 + -5'P_7_15 + -5'P_7_16 + -4'P_7_17 + -2'P_7_18 + -1'P_8_9 + -2'P_8_10 + -3'P_8_11 + -4'P_8_12 + -5'P_8_13 + -6'P_8_14 + -6'P_8_15 + -6'P_8_16 + -4'P_8_17 + -2'P_8_18 + -1'P_9_8 + -2'P_9_9 + -3'P_9_10 + -4'P_9_11 + -5'P_9_12 + -6'P_9_13 + -7'P_9_14 + -7'P_9_15 + -6'P_9_16 + -4'P_9_17 + -2'P_9_18 + -1'P_10_7 + -2'P_10_8 + -3'P_10_9 + -4'P_10_10 + -5'P_10_11 + -6'P_10_12 + -7'P_10_13 + -8'P_10_14 + -7'P_10_15 + -6'P_10_16 + -4'P_10_17 + -2'P_10_18 + -1'P_11_6 + -2'P_11_7 + -3'P_11_8 + -4'P_11_9 + -5'P_11_10 + -6'P_11_11 + -7'P_11_12 + -8'P_11_13 + -8'P_11_14 + -7'P_11_15 + -6'P_11_16 + -4'P_11_17 + -2'P_11_18 + -1'P_12_5 + -2'P_12_6 + -3'P_12_7 + -4'P_12_8 + -5'P_12_9 + -6'P_12_10 + -7'P_12_11 + -8'P_12_12 + -8'P_12_13 + -8'P_12_14 + -7'P_12_15 + -6'P_12_16 + -4'P_12_17 + -2'P_12_18 + -1'P_13_4 + -2'P_13_5 + -3'P_13_6 + -4'P_13_7 + -5'P_13_8 + -6'P_13_9 + -7'P_13_10 + -8'P_13_11 + -8'P_13_12 + -8'P_13_13 + -8'P_13_14 + -7'P_13_15 + -6'P_13_16 + -4'P_13_17 + -2'P_13_18 + -1'P_14_3 + -2'P_14_4 + -3'P_14_5 + -4'P_14_6 + -5'P_14_7 + -6'P_14_8 + -7'P_14_9 + -8'P_14_10 + -8'P_14_11 + -8'P_14_12 + -8'P_14_13 + -8'P_14_14 + -7'P_14_15 + -6'P_14_16 + -4'P_14_17 + -2'P_14_18 + -1'P_15_2 + -2'P_15_3 + -3'P_15_4 + -4'P_15_5 + -5'P_15_6 + -6'P_15_7 + -7'P_15_8 + -8'P_15_9 + -8'P_15_10 + -8'P_15_11 + -8'P_15_12 + -8'P_15_13 + -8'P_15_14 + -7'P_15_15 + -6'P_15_16 + -4'P_15_17 + -2'P_15_18 + -1'P_16_2 + -2'P_16_3 + -3'P_16_4 + -4'P_16_5 + -5'P_16_6 + -6'P_16_7 + -7'P_16_8 + -7'P_16_9 + -7'P_16_10 + -7'P_16_11 + -7'P_16_12 + -7'P_16_13 + -7'P_16_14 + -6'P_16_15 + -5'P_16_16 + -3'P_16_17 + -1'P_16_18 + -1'P_17_3 + -2'P_17_4 + -3'P_17_5 + -4'P_17_6 + -5'P_17_7 + -5'P_17_8 + -5'P_17_9 + -5'P_17_10 + -5'P_17_11 + -5'P_17_12 + -5'P_17_13 + -5'P_17_14 + -4'P_17_15 + -3'P_17_16 + -1'P_17_17 + -1'P_18_4 + -2'P_18_5 + -3'P_18_6 + -3'P_18_7 + -3'P_18_8 + -3'P_18_9 + -3'P_18_10 + -3'P_18_11 + -3'P_18_12 + -3'P_18_13 + -3'P_18_14 + -2'P_18_15 + -1'P_18_16 + -1'P_19_5 + -1'P_19_6 + -1'P_19_7 + -1'P_19_8 + -1'P_19_9 + -1'P_19_10 + -1'P_19_11 + -1'P_19_12 + -1'P_19_13 + -1'P_19_14 + cX_16 + 3'cX_17 + 5'cX_18 + 7'cX_19 + cY_15 + 2'cY_16 + 4'cY_17 + 6'cY_18 + 8'cY_19 + -5'L_0 + -4'L_1 + -3'L_2 + -2'L_3 + -1'L_4 + -1'L_35 + -2'L_36 + -3'L_37 + -4'L_38 + -1'R_18 + -2'R_19 + -3'R_20 + -4'R_21 + -5'R_22 + -6'R_23 + -7'R_24 + -8'R_25 + -8'R_26 + -8'R_27 + -8'R_28 + -8'R_29 + -8'R_30 + -8'R_31 + -8'R_32 + -8'R_33 + -8'R_34 + -8'R_35 + -9'R_36 + -11'R_37 + -13'R_38 + -15'R_39 = -152
invariant :P_0_15 + P_3_15 + P_4_14 + P_4_15 + P_4_16 + P_5_13 + P_5_14 + 2'P_5_15 + P_5_16 + P_5_17 + P_6_12 + P_6_13 + 2'P_6_14 + 2'P_6_15 + 2'P_6_16 + P_6_17 + P_6_18 + P_7_11 + P_7_12 + 2'P_7_13 + 2'P_7_14 + 3'P_7_15 + 2'P_7_16 + 2'P_7_17 + P_7_18 + P_8_10 + P_8_11 + 2'P_8_12 + 2'P_8_13 + 3'P_8_14 + 3'P_8_15 + 3'P_8_16 + 2'P_8_17 + P_8_18 + P_9_9 + P_9_10 + 2'P_9_11 + 2'P_9_12 + 3'P_9_13 + 3'P_9_14 + 4'P_9_15 + 3'P_9_16 + 2'P_9_17 + P_9_18 + P_10_8 + P_10_9 + 2'P_10_10 + 2'P_10_11 + 3'P_10_12 + 3'P_10_13 + 4'P_10_14 + 4'P_10_15 + 3'P_10_16 + 2'P_10_17 + P_10_18 + P_11_7 + P_11_8 + 2'P_11_9 + 2'P_11_10 + 3'P_11_11 + 3'P_11_12 + 4'P_11_13 + 4'P_11_14 + 4'P_11_15 + 3'P_11_16 + 2'P_11_17 + P_11_18 + P_12_6 + P_12_7 + 2'P_12_8 + 2'P_12_9 + 3'P_12_10 + 3'P_12_11 + 4'P_12_12 + 4'P_12_13 + 4'P_12_14 + 4'P_12_15 + 3'P_12_16 + 2'P_12_17 + P_12_18 + P_13_5 + P_13_6 + 2'P_13_7 + 2'P_13_8 + 3'P_13_9 + 3'P_13_10 + 4'P_13_11 + 4'P_13_12 + 4'P_13_13 + 4'P_13_14 + 4'P_13_15 + 3'P_13_16 + 2'P_13_17 + P_13_18 + P_14_4 + P_14_5 + 2'P_14_6 + 2'P_14_7 + 3'P_14_8 + 3'P_14_9 + 4'P_14_10 + 4'P_14_11 + 4'P_14_12 + 4'P_14_13 + 4'P_14_14 + 4'P_14_15 + 3'P_14_16 + 2'P_14_17 + P_14_18 + P_15_3 + P_15_4 + 2'P_15_5 + 2'P_15_6 + 3'P_15_7 + 3'P_15_8 + 4'P_15_9 + 4'P_15_10 + 4'P_15_11 + 4'P_15_12 + 4'P_15_13 + 4'P_15_14 + 4'P_15_15 + 3'P_15_16 + 2'P_15_17 + P_15_18 + P_16_2 + P_16_3 + 2'P_16_4 + 2'P_16_5 + 3'P_16_6 + 3'P_16_7 + 4'P_16_8 + 4'P_16_9 + 4'P_16_10 + 4'P_16_11 + 4'P_16_12 + 4'P_16_13 + 4'P_16_14 + 4'P_16_15 + 3'P_16_16 + 2'P_16_17 + P_16_18 + P_17_3 + P_17_4 + 2'P_17_5 + 2'P_17_6 + 3'P_17_7 + 3'P_17_8 + 3'P_17_9 + 3'P_17_10 + 3'P_17_11 + 3'P_17_12 + 3'P_17_13 + 3'P_17_14 + 3'P_17_15 + 2'P_17_16 + P_17_17 + P_18_4 + P_18_5 + 2'P_18_6 + 2'P_18_7 + 2'P_18_8 + 2'P_18_9 + 2'P_18_10 + 2'P_18_11 + 2'P_18_12 + 2'P_18_13 + 2'P_18_14 + 2'P_18_15 + P_18_16 + P_19_5 + P_19_6 + P_19_7 + P_19_8 + P_19_9 + P_19_10 + P_19_11 + P_19_12 + P_19_13 + P_19_14 + P_19_15 + -1'cX_17 + -2'cX_18 + -3'cX_19 + -1'cY_16 + -2'cY_17 + -3'cY_18 + -4'cY_19 + 3'L_0 + 2'L_1 + 2'L_2 + L_3 + L_4 + L_36 + L_37 + 2'L_38 + R_19 + R_20 + 2'R_21 + 2'R_22 + 3'R_23 + 3'R_24 + 4'R_25 + 4'R_26 + 4'R_27 + 4'R_28 + 4'R_29 + 4'R_30 + 4'R_31 + 4'R_32 + 4'R_33 + 4'R_34 + 4'R_35 + 4'R_36 + 5'R_37 + 6'R_38 + 7'R_39 = 75
invariant :P_3_19 + P_4_18 + P_5_17 + P_6_16 + P_7_15 + P_8_14 + P_9_13 + P_10_12 + P_11_11 + P_12_10 + P_13_9 + P_14_8 + P_15_7 + P_16_6 + P_17_5 + P_18_4 + P_19_3 + R_23 = 1
invariant :P_16_0 + -1'P_17_2 + -1'P_17_3 + -1'P_17_4 + -1'P_17_5 + -1'P_17_6 + -1'P_17_7 + -1'P_17_8 + -1'P_17_9 + -1'P_17_10 + -1'P_17_11 + -1'P_17_12 + -1'P_17_13 + -1'P_17_14 + -1'P_17_15 + -1'P_17_16 + -1'P_17_17 + -1'P_17_18 + -1'P_18_3 + -1'P_18_4 + -1'P_18_5 + -1'P_18_6 + -1'P_18_7 + -1'P_18_8 + -1'P_18_9 + -1'P_18_10 + -1'P_18_11 + -1'P_18_12 + -1'P_18_13 + -1'P_18_14 + -1'P_18_15 + -1'P_18_16 + -1'P_18_17 + -1'P_19_4 + -1'P_19_5 + -1'P_19_6 + -1'P_19_7 + -1'P_19_8 + -1'P_19_9 + -1'P_19_10 + -1'P_19_11 + -1'P_19_12 + -1'P_19_13 + -1'P_19_14 + -1'P_19_15 + -1'P_19_16 + -1'cX_17 + -1'cX_18 + -1'cX_19 + L_35 + L_36 + L_37 + L_38 + R_37 + R_38 + R_39 = 4
invariant :P_1_16 + -1'P_3_15 + -1'P_3_16 + -1'P_3_17 + -1'P_4_14 + -2'P_4_15 + -2'P_4_16 + -2'P_4_17 + -1'P_4_18 + -1'P_5_13 + -2'P_5_14 + -3'P_5_15 + -3'P_5_16 + -3'P_5_17 + -2'P_5_18 + -1'P_6_12 + -2'P_6_13 + -3'P_6_14 + -4'P_6_15 + -4'P_6_16 + -4'P_6_17 + -2'P_6_18 + -1'P_7_11 + -2'P_7_12 + -3'P_7_13 + -4'P_7_14 + -5'P_7_15 + -5'P_7_16 + -4'P_7_17 + -2'P_7_18 + -1'P_8_10 + -2'P_8_11 + -3'P_8_12 + -4'P_8_13 + -5'P_8_14 + -6'P_8_15 + -5'P_8_16 + -4'P_8_17 + -2'P_8_18 + -1'P_9_9 + -2'P_9_10 + -3'P_9_11 + -4'P_9_12 + -5'P_9_13 + -6'P_9_14 + -6'P_9_15 + -5'P_9_16 + -4'P_9_17 + -2'P_9_18 + -1'P_10_8 + -2'P_10_9 + -3'P_10_10 + -4'P_10_11 + -5'P_10_12 + -6'P_10_13 + -6'P_10_14 + -6'P_10_15 + -5'P_10_16 + -4'P_10_17 + -2'P_10_18 + -1'P_11_7 + -2'P_11_8 + -3'P_11_9 + -4'P_11_10 + -5'P_11_11 + -6'P_11_12 + -6'P_11_13 + -6'P_11_14 + -6'P_11_15 + -5'P_11_16 + -4'P_11_17 + -2'P_11_18 + -1'P_12_6 + -2'P_12_7 + -3'P_12_8 + -4'P_12_9 + -5'P_12_10 + -6'P_12_11 + -6'P_12_12 + -6'P_12_13 + -6'P_12_14 + -6'P_12_15 + -5'P_12_16 + -4'P_12_17 + -2'P_12_18 + -1'P_13_5 + -2'P_13_6 + -3'P_13_7 + -4'P_13_8 + -5'P_13_9 + -6'P_13_10 + -6'P_13_11 + -6'P_13_12 + -6'P_13_13 + -6'P_13_14 + -6'P_13_15 + -5'P_13_16 + -4'P_13_17 + -2'P_13_18 + -1'P_14_4 + -2'P_14_5 + -3'P_14_6 + -4'P_14_7 + -5'P_14_8 + -6'P_14_9 + -6'P_14_10 + -6'P_14_11 + -6'P_14_12 + -6'P_14_13 + -6'P_14_14 + -6'P_14_15 + -5'P_14_16 + -4'P_14_17 + -2'P_14_18 + -1'P_15_3 + -2'P_15_4 + -3'P_15_5 + -4'P_15_6 + -5'P_15_7 + -6'P_15_8 + -6'P_15_9 + -6'P_15_10 + -6'P_15_11 + -6'P_15_12 + -6'P_15_13 + -6'P_15_14 + -6'P_15_15 + -5'P_15_16 + -4'P_15_17 + -2'P_15_18 + -1'P_16_2 + -2'P_16_3 + -3'P_16_4 + -4'P_16_5 + -5'P_16_6 + -6'P_16_7 + -6'P_16_8 + -6'P_16_9 + -6'P_16_10 + -6'P_16_11 + -6'P_16_12 + -6'P_16_13 + -6'P_16_14 + -6'P_16_15 + -5'P_16_16 + -4'P_16_17 + -2'P_16_18 + -1'P_17_2 + -2'P_17_3 + -3'P_17_4 + -4'P_17_5 + -5'P_17_6 + -5'P_17_7 + -5'P_17_8 + -5'P_17_9 + -5'P_17_10 + -5'P_17_11 + -5'P_17_12 + -5'P_17_13 + -5'P_17_14 + -5'P_17_15 + -4'P_17_16 + -3'P_17_17 + -1'P_17_18 + -1'P_18_3 + -2'P_18_4 + -3'P_18_5 + -3'P_18_6 + -3'P_18_7 + -3'P_18_8 + -3'P_18_9 + -3'P_18_10 + -3'P_18_11 + -3'P_18_12 + -3'P_18_13 + -3'P_18_14 + -3'P_18_15 + -2'P_18_16 + -1'P_18_17 + -1'P_19_4 + -1'P_19_5 + -1'P_19_6 + -1'P_19_7 + -1'P_19_8 + -1'P_19_9 + -1'P_19_10 + -1'P_19_11 + -1'P_19_12 + -1'P_19_13 + -1'P_19_14 + -1'P_19_15 + cX_17 + 3'cX_18 + 5'cX_19 + cY_16 + 2'cY_17 + 4'cY_18 + 6'cY_19 + -4'L_0 + -3'L_1 + -2'L_2 + -1'L_3 + -1'L_36 + -2'L_37 + -3'L_38 + -1'R_19 + -2'R_20 + -3'R_21 + -4'R_22 + -5'R_23 + -6'R_24 + -6'R_25 + -6'R_26 + -6'R_27 + -6'R_28 + -6'R_29 + -6'R_30 + -6'R_31 + -6'R_32 + -6'R_33 + -6'R_34 + -6'R_35 + -6'R_36 + -7'R_37 + -9'R_38 + -11'R_39 = -114
invariant :P_1_14 + -1'P_3_13 + -1'P_3_14 + -1'P_3_15 + -1'P_4_12 + -2'P_4_13 + -2'P_4_14 + -2'P_4_15 + -1'P_4_16 + -1'P_5_11 + -2'P_5_12 + -3'P_5_13 + -3'P_5_14 + -3'P_5_15 + -2'P_5_16 + -1'P_5_17 + -1'P_6_10 + -2'P_6_11 + -3'P_6_12 + -4'P_6_13 + -4'P_6_14 + -4'P_6_15 + -3'P_6_16 + -2'P_6_17 + -1'P_6_18 + -1'P_7_9 + -2'P_7_10 + -3'P_7_11 + -4'P_7_12 + -5'P_7_13 + -5'P_7_14 + -5'P_7_15 + -4'P_7_16 + -3'P_7_17 + -2'P_7_18 + -1'P_8_8 + -2'P_8_9 + -3'P_8_10 + -4'P_8_11 + -5'P_8_12 + -6'P_8_13 + -6'P_8_14 + -6'P_8_15 + -5'P_8_16 + -4'P_8_17 + -2'P_8_18 + -1'P_9_7 + -2'P_9_8 + -3'P_9_9 + -4'P_9_10 + -5'P_9_11 + -6'P_9_12 + -7'P_9_13 + -7'P_9_14 + -7'P_9_15 + -6'P_9_16 + -4'P_9_17 + -2'P_9_18 + -1'P_10_6 + -2'P_10_7 + -3'P_10_8 + -4'P_10_9 + -5'P_10_10 + -6'P_10_11 + -7'P_10_12 + -8'P_10_13 + -8'P_10_14 + -8'P_10_15 + -6'P_10_16 + -4'P_10_17 + -2'P_10_18 + -1'P_11_5 + -2'P_11_6 + -3'P_11_7 + -4'P_11_8 + -5'P_11_9 + -6'P_11_10 + -7'P_11_11 + -8'P_11_12 + -9'P_11_13 + -9'P_11_14 + -8'P_11_15 + -6'P_11_16 + -4'P_11_17 + -2'P_11_18 + -1'P_12_4 + -2'P_12_5 + -3'P_12_6 + -4'P_12_7 + -5'P_12_8 + -6'P_12_9 + -7'P_12_10 + -8'P_12_11 + -9'P_12_12 + -10'P_12_13 + -9'P_12_14 + -8'P_12_15 + -6'P_12_16 + -4'P_12_17 + -2'P_12_18 + -1'P_13_3 + -2'P_13_4 + -3'P_13_5 + -4'P_13_6 + -5'P_13_7 + -6'P_13_8 + -7'P_13_9 + -8'P_13_10 + -9'P_13_11 + -10'P_13_12 + -10'P_13_13 + -9'P_13_14 + -8'P_13_15 + -6'P_13_16 + -4'P_13_17 + -2'P_13_18 + -1'P_14_2 + -2'P_14_3 + -3'P_14_4 + -4'P_14_5 + -5'P_14_6 + -6'P_14_7 + -7'P_14_8 + -8'P_14_9 + -9'P_14_10 + -10'P_14_11 + -10'P_14_12 + -10'P_14_13 + -9'P_14_14 + -8'P_14_15 + -6'P_14_16 + -4'P_14_17 + -2'P_14_18 + -1'P_15_2 + -2'P_15_3 + -3'P_15_4 + -4'P_15_5 + -5'P_15_6 + -6'P_15_7 + -7'P_15_8 + -8'P_15_9 + -9'P_15_10 + -9'P_15_11 + -9'P_15_12 + -9'P_15_13 + -8'P_15_14 + -7'P_15_15 + -5'P_15_16 + -3'P_15_17 + -1'P_15_18 + -1'P_16_3 + -2'P_16_4 + -3'P_16_5 + -4'P_16_6 + -5'P_16_7 + -6'P_16_8 + -7'P_16_9 + -7'P_16_10 + -7'P_16_11 + -7'P_16_12 + -7'P_16_13 + -6'P_16_14 + -5'P_16_15 + -3'P_16_16 + -1'P_16_17 + -1'P_17_4 + -2'P_17_5 + -3'P_17_6 + -4'P_17_7 + -5'P_17_8 + -5'P_17_9 + -5'P_17_10 + -5'P_17_11 + -5'P_17_12 + -5'P_17_13 + -4'P_17_14 + -3'P_17_15 + -1'P_17_16 + -1'P_18_5 + -2'P_18_6 + -3'P_18_7 + -3'P_18_8 + -3'P_18_9 + -3'P_18_10 + -3'P_18_11 + -3'P_18_12 + -3'P_18_13 + -2'P_18_14 + -1'P_18_15 + -1'P_19_6 + -1'P_19_7 + -1'P_19_8 + -1'P_19_9 + -1'P_19_10 + -1'P_19_11 + -1'P_19_12 + -1'P_19_13 + cX_15 + 3'cX_16 + 5'cX_17 + 7'cX_18 + 9'cX_19 + cY_14 + 2'cY_15 + 4'cY_16 + 6'cY_17 + 8'cY_18 + 10'cY_19 + -6'L_0 + -5'L_1 + -4'L_2 + -3'L_3 + -2'L_4 + -1'L_5 + -1'L_34 + -2'L_35 + -3'L_36 + -4'L_37 + -5'L_38 + -1'R_17 + -2'R_18 + -3'R_19 + -4'R_20 + -5'R_21 + -6'R_22 + -7'R_23 + -8'R_24 + -9'R_25 + -10'R_26 + -10'R_27 + -10'R_28 + -10'R_29 + -10'R_30 + -10'R_31 + -10'R_32 + -10'R_33 + -10'R_34 + -11'R_35 + -13'R_36 + -15'R_37 + -17'R_38 + -19'R_39 = -190
invariant :P_5_19 + P_6_18 + P_7_17 + P_8_16 + P_9_15 + P_10_14 + P_11_13 + P_12_12 + P_13_11 + P_14_10 + P_15_9 + P_16_8 + P_17_7 + P_18_6 + P_19_5 + R_25 = 1
invariant :P_1_1 + P_3_3 + P_3_4 + P_3_5 + P_3_6 + P_3_7 + P_3_8 + P_3_9 + P_3_10 + P_3_11 + P_3_12 + P_3_13 + P_3_14 + P_3_15 + P_3_16 + P_3_17 + P_3_18 + P_4_3 + 2'P_4_4 + 2'P_4_5 + 2'P_4_6 + 2'P_4_7 + 2'P_4_8 + 2'P_4_9 + 2'P_4_10 + 2'P_4_11 + 2'P_4_12 + 2'P_4_13 + 2'P_4_14 + 2'P_4_15 + 2'P_4_16 + 2'P_4_17 + P_4_18 + P_5_3 + 2'P_5_4 + 3'P_5_5 + 3'P_5_6 + 3'P_5_7 + 3'P_5_8 + 3'P_5_9 + 3'P_5_10 + 3'P_5_11 + 3'P_5_12 + 3'P_5_13 + 3'P_5_14 + 3'P_5_15 + 3'P_5_16 + 2'P_5_17 + P_5_18 + P_6_3 + 2'P_6_4 + 3'P_6_5 + 4'P_6_6 + 4'P_6_7 + 4'P_6_8 + 4'P_6_9 + 4'P_6_10 + 4'P_6_11 + 4'P_6_12 + 4'P_6_13 + 4'P_6_14 + 4'P_6_15 + 3'P_6_16 + 2'P_6_17 + P_6_18 + P_7_3 + 2'P_7_4 + 3'P_7_5 + 4'P_7_6 + 5'P_7_7 + 5'P_7_8 + 5'P_7_9 + 5'P_7_10 + 5'P_7_11 + 5'P_7_12 + 5'P_7_13 + 5'P_7_14 + 4'P_7_15 + 3'P_7_16 + 2'P_7_17 + P_7_18 + P_8_3 + 2'P_8_4 + 3'P_8_5 + 4'P_8_6 + 5'P_8_7 + 6'P_8_8 + 6'P_8_9 + 6'P_8_10 + 6'P_8_11 + 6'P_8_12 + 6'P_8_13 + 5'P_8_14 + 4'P_8_15 + 3'P_8_16 + 2'P_8_17 + P_8_18 + P_9_3 + 2'P_9_4 + 3'P_9_5 + 4'P_9_6 + 5'P_9_7 + 6'P_9_8 + 7'P_9_9 + 7'P_9_10 + 7'P_9_11 + 7'P_9_12 + 6'P_9_13 + 5'P_9_14 + 4'P_9_15 + 3'P_9_16 + 2'P_9_17 + P_9_18 + P_10_3 + 2'P_10_4 + 3'P_10_5 + 4'P_10_6 + 5'P_10_7 + 6'P_10_8 + 7'P_10_9 + 8'P_10_10 + 8'P_10_11 + 7'P_10_12 + 6'P_10_13 + 5'P_10_14 + 4'P_10_15 + 3'P_10_16 + 2'P_10_17 + P_10_18 + P_11_3 + 2'P_11_4 + 3'P_11_5 + 4'P_11_6 + 5'P_11_7 + 6'P_11_8 + 7'P_11_9 + 8'P_11_10 + 8'P_11_11 + 7'P_11_12 + 6'P_11_13 + 5'P_11_14 + 4'P_11_15 + 3'P_11_16 + 2'P_11_17 + P_11_18 + P_12_3 + 2'P_12_4 + 3'P_12_5 + 4'P_12_6 + 5'P_12_7 + 6'P_12_8 + 7'P_12_9 + 7'P_12_10 + 7'P_12_11 + 7'P_12_12 + 6'P_12_13 + 5'P_12_14 + 4'P_12_15 + 3'P_12_16 + 2'P_12_17 + P_12_18 + P_13_3 + 2'P_13_4 + 3'P_13_5 + 4'P_13_6 + 5'P_13_7 + 6'P_13_8 + 6'P_13_9 + 6'P_13_10 + 6'P_13_11 + 6'P_13_12 + 6'P_13_13 + 5'P_13_14 + 4'P_13_15 + 3'P_13_16 + 2'P_13_17 + P_13_18 + P_14_3 + 2'P_14_4 + 3'P_14_5 + 4'P_14_6 + 5'P_14_7 + 5'P_14_8 + 5'P_14_9 + 5'P_14_10 + 5'P_14_11 + 5'P_14_12 + 5'P_14_13 + 5'P_14_14 + 4'P_14_15 + 3'P_14_16 + 2'P_14_17 + P_14_18 + P_15_3 + 2'P_15_4 + 3'P_15_5 + 4'P_15_6 + 4'P_15_7 + 4'P_15_8 + 4'P_15_9 + 4'P_15_10 + 4'P_15_11 + 4'P_15_12 + 4'P_15_13 + 4'P_15_14 + 4'P_15_15 + 3'P_15_16 + 2'P_15_17 + P_15_18 + P_16_3 + 2'P_16_4 + 3'P_16_5 + 3'P_16_6 + 3'P_16_7 + 3'P_16_8 + 3'P_16_9 + 3'P_16_10 + 3'P_16_11 + 3'P_16_12 + 3'P_16_13 + 3'P_16_14 + 3'P_16_15 + 3'P_16_16 + 2'P_16_17 + P_16_18 + P_17_3 + 2'P_17_4 + 2'P_17_5 + 2'P_17_6 + 2'P_17_7 + 2'P_17_8 + 2'P_17_9 + 2'P_17_10 + 2'P_17_11 + 2'P_17_12 + 2'P_17_13 + 2'P_17_14 + 2'P_17_15 + 2'P_17_16 + 2'P_17_17 + P_17_18 + P_18_3 + P_18_4 + P_18_5 + P_18_6 + P_18_7 + P_18_8 + P_18_9 + P_18_10 + P_18_11 + P_18_12 + P_18_13 + P_18_14 + P_18_15 + P_18_16 + P_18_17 + P_18_18 + cX_3 + 2'cX_4 + 3'cX_5 + 4'cX_6 + 5'cX_7 + 6'cX_8 + 7'cX_9 + 8'cX_10 + 9'cX_11 + 10'cX_12 + 11'cX_13 + 12'cX_14 + 13'cX_15 + 14'cX_16 + 15'cX_17 + 16'cX_18 + 17'cX_19 + cY_3 + 2'cY_4 + 3'cY_5 + 4'cY_6 + 5'cY_7 + 6'cY_8 + 7'cY_9 + 8'cY_10 + 9'cY_11 + 10'cY_12 + 11'cY_13 + 12'cY_14 + 13'cY_15 + 14'cY_16 + 15'cY_17 + 16'cY_18 + 17'cY_19 + -9'L_0 + -9'L_1 + -8'L_2 + -8'L_3 + -7'L_4 + -7'L_5 + -6'L_6 + -6'L_7 + -5'L_8 + -5'L_9 + -4'L_10 + -4'L_11 + -3'L_12 + -3'L_13 + -2'L_14 + -2'L_15 + -1'L_16 + -1'L_17 + -1'L_21 + -1'L_22 + -2'L_23 + -2'L_24 + -3'L_25 + -3'L_26 + -4'L_27 + -4'L_28 + -5'L_29 + -5'L_30 + -6'L_31 + -6'L_32 + -7'L_33 + -7'L_34 + -8'L_35 + -8'L_36 + -9'L_37 + -9'L_38 + R_3 + -1'R_6 + -1'R_7 + -2'R_8 + -2'R_9 + -3'R_10 + -3'R_11 + -4'R_12 + -4'R_13 + -5'R_14 + -5'R_15 + -6'R_16 + -6'R_17 + -7'R_18 + -7'R_19 + -8'R_20 + -8'R_21 + -9'R_22 + -10'R_23 + -12'R_24 + -13'R_25 + -15'R_26 + -16'R_27 + -18'R_28 + -19'R_29 + -21'R_30 + -22'R_31 + -24'R_32 + -25'R_33 + -27'R_34 + -28'R_35 + -30'R_36 + -31'R_37 + -33'R_38 + -34'R_39 = -332
invariant :P_11_1 + P_11_2 + P_11_3 + P_11_4 + P_11_5 + P_11_6 + P_11_7 + P_11_8 + P_11_9 + P_11_10 + P_11_11 + P_11_12 + P_11_13 + P_11_14 + P_11_15 + P_11_16 + P_11_17 + P_11_18 + P_12_2 + P_12_3 + P_12_4 + P_12_5 + P_12_6 + P_12_7 + P_12_8 + P_12_9 + P_12_10 + P_12_11 + P_12_12 + P_12_13 + P_12_14 + P_12_15 + P_12_16 + P_12_17 + P_13_3 + P_13_4 + P_13_5 + P_13_6 + P_13_7 + P_13_8 + P_13_9 + P_13_10 + P_13_11 + P_13_12 + P_13_13 + P_13_14 + P_13_15 + P_13_16 + P_14_4 + P_14_5 + P_14_6 + P_14_7 + P_14_8 + P_14_9 + P_14_10 + P_14_11 + P_14_12 + P_14_13 + P_14_14 + P_14_15 + P_15_5 + P_15_6 + P_15_7 + P_15_8 + P_15_9 + P_15_10 + P_15_11 + P_15_12 + P_15_13 + P_15_14 + P_16_6 + P_16_7 + P_16_8 + P_16_9 + P_16_10 + P_16_11 + P_16_12 + P_16_13 + P_17_7 + P_17_8 + P_17_9 + P_17_10 + P_17_11 + P_17_12 + P_18_8 + P_18_9 + P_18_10 + P_18_11 + P_19_9 + P_19_10 + cX_11 + cX_12 + cX_13 + cX_14 + cX_15 + cX_16 + cX_17 + cX_18 + cX_19 + -1'L_30 + -1'L_31 + -1'L_32 + -1'L_33 + -1'L_34 + -1'L_35 + -1'L_36 + -1'L_37 + -1'L_38 + -1'R_31 + -1'R_32 + -1'R_33 + -1'R_34 + -1'R_35 + -1'R_36 + -1'R_37 + -1'R_38 + -1'R_39 = -9
invariant :P_0_17 + P_3_17 + P_4_16 + P_4_17 + P_4_18 + P_5_15 + P_5_16 + 2'P_5_17 + P_5_18 + P_6_14 + P_6_15 + 2'P_6_16 + 2'P_6_17 + P_6_18 + P_7_13 + P_7_14 + 2'P_7_15 + 2'P_7_16 + 2'P_7_17 + P_7_18 + P_8_12 + P_8_13 + 2'P_8_14 + 2'P_8_15 + 2'P_8_16 + 2'P_8_17 + P_8_18 + P_9_11 + P_9_12 + 2'P_9_13 + 2'P_9_14 + 2'P_9_15 + 2'P_9_16 + 2'P_9_17 + P_9_18 + P_10_10 + P_10_11 + 2'P_10_12 + 2'P_10_13 + 2'P_10_14 + 2'P_10_15 + 2'P_10_16 + 2'P_10_17 + P_10_18 + P_11_9 + P_11_10 + 2'P_11_11 + 2'P_11_12 + 2'P_11_13 + 2'P_11_14 + 2'P_11_15 + 2'P_11_16 + 2'P_11_17 + P_11_18 + P_12_8 + P_12_9 + 2'P_12_10 + 2'P_12_11 + 2'P_12_12 + 2'P_12_13 + 2'P_12_14 + 2'P_12_15 + 2'P_12_16 + 2'P_12_17 + P_12_18 + P_13_7 + P_13_8 + 2'P_13_9 + 2'P_13_10 + 2'P_13_11 + 2'P_13_12 + 2'P_13_13 + 2'P_13_14 + 2'P_13_15 + 2'P_13_16 + 2'P_13_17 + P_13_18 + P_14_6 + P_14_7 + 2'P_14_8 + 2'P_14_9 + 2'P_14_10 + 2'P_14_11 + 2'P_14_12 + 2'P_14_13 + 2'P_14_14 + 2'P_14_15 + 2'P_14_16 + 2'P_14_17 + P_14_18 + P_15_5 + P_15_6 + 2'P_15_7 + 2'P_15_8 + 2'P_15_9 + 2'P_15_10 + 2'P_15_11 + 2'P_15_12 + 2'P_15_13 + 2'P_15_14 + 2'P_15_15 + 2'P_15_16 + 2'P_15_17 + P_15_18 + P_16_4 + P_16_5 + 2'P_16_6 + 2'P_16_7 + 2'P_16_8 + 2'P_16_9 + 2'P_16_10 + 2'P_16_11 + 2'P_16_12 + 2'P_16_13 + 2'P_16_14 + 2'P_16_15 + 2'P_16_16 + 2'P_16_17 + P_16_18 + P_17_3 + P_17_4 + 2'P_17_5 + 2'P_17_6 + 2'P_17_7 + 2'P_17_8 + 2'P_17_9 + 2'P_17_10 + 2'P_17_11 + 2'P_17_12 + 2'P_17_13 + 2'P_17_14 + 2'P_17_15 + 2'P_17_16 + 2'P_17_17 + P_17_18 + P_18_2 + P_18_3 + 2'P_18_4 + 2'P_18_5 + 2'P_18_6 + 2'P_18_7 + 2'P_18_8 + 2'P_18_9 + 2'P_18_10 + 2'P_18_11 + 2'P_18_12 + 2'P_18_13 + 2'P_18_14 + 2'P_18_15 + 2'P_18_16 + 2'P_18_17 + P_18_18 + P_19_3 + P_19_4 + P_19_5 + P_19_6 + P_19_7 + P_19_8 + P_19_9 + P_19_10 + P_19_11 + P_19_12 + P_19_13 + P_19_14 + P_19_15 + P_19_16 + P_19_17 + -1'cX_19 + -1'cY_18 + -2'cY_19 + 2'L_0 + L_1 + L_2 + L_38 + R_21 + R_22 + 2'R_23 + 2'R_24 + 2'R_25 + 2'R_26 + 2'R_27 + 2'R_28 + 2'R_29 + 2'R_30 + 2'R_31 + 2'R_32 + 2'R_33 + 2'R_34 + 2'R_35 + 2'R_36 + 2'R_37 + 2'R_38 + 3'R_39 = 38
invariant :P_2_8 + P_3_7 + P_3_8 + P_3_9 + P_4_6 + P_4_7 + 2'P_4_8 + P_4_9 + P_4_10 + P_5_5 + P_5_6 + 2'P_5_7 + 2'P_5_8 + 2'P_5_9 + P_5_10 + P_5_11 + P_6_4 + P_6_5 + 2'P_6_6 + 2'P_6_7 + 3'P_6_8 + 2'P_6_9 + 2'P_6_10 + P_6_11 + P_6_12 + P_7_3 + P_7_4 + 2'P_7_5 + 2'P_7_6 + 3'P_7_7 + 3'P_7_8 + 3'P_7_9 + 2'P_7_10 + 2'P_7_11 + P_7_12 + P_7_13 + P_8_2 + P_8_3 + 2'P_8_4 + 2'P_8_5 + 3'P_8_6 + 3'P_8_7 + 4'P_8_8 + 3'P_8_9 + 3'P_8_10 + 2'P_8_11 + 2'P_8_12 + P_8_13 + P_8_14 + P_9_3 + P_9_4 + 2'P_9_5 + 2'P_9_6 + 3'P_9_7 + 3'P_9_8 + 3'P_9_9 + 2'P_9_10 + 2'P_9_11 + P_9_12 + P_9_13 + -1'P_9_16 + -1'P_9_17 + -1'P_9_18 + P_10_4 + P_10_5 + 2'P_10_6 + 2'P_10_7 + 3'P_10_8 + 2'P_10_9 + 2'P_10_10 + P_10_11 + P_10_12 + -1'P_10_15 + -1'P_10_16 + -2'P_10_17 + -1'P_10_18 + P_11_5 + P_11_6 + 2'P_11_7 + 2'P_11_8 + 2'P_11_9 + P_11_10 + P_11_11 + -1'P_11_14 + -1'P_11_15 + -2'P_11_16 + -1'P_11_17 + -1'P_11_18 + P_12_6 + P_12_7 + 2'P_12_8 + P_12_9 + P_12_10 + -1'P_12_13 + -1'P_12_14 + -2'P_12_15 + -1'P_12_16 + -1'P_12_17 + P_13_7 + P_13_8 + P_13_9 + -1'P_13_12 + -1'P_13_13 + -2'P_13_14 + -1'P_13_15 + -1'P_13_16 + P_14_8 + -1'P_14_11 + -1'P_14_12 + -2'P_14_13 + -1'P_14_14 + -1'P_14_15 + -1'P_15_10 + -1'P_15_11 + -2'P_15_12 + -1'P_15_13 + -1'P_15_14 + -1'P_16_9 + -1'P_16_10 + -2'P_16_11 + -1'P_16_12 + -1'P_16_13 + -1'P_17_9 + -2'P_17_10 + -1'P_17_11 + -1'P_17_12 + -1'P_18_9 + -1'P_18_10 + -1'P_18_11 + -1'cX_9 + -2'cX_10 + -3'cX_11 + -4'cX_12 + -5'cX_13 + -6'cX_14 + -7'cX_15 + -8'cX_16 + -9'cX_17 + -10'cX_18 + -11'cX_19 + -1'cY_9 + -2'cY_10 + -3'cY_11 + -4'cY_12 + -5'cY_13 + -6'cY_14 + -7'cY_15 + -8'cY_16 + -9'cY_17 + -10'cY_18 + -11'cY_19 + 6'L_0 + 5'L_1 + 5'L_2 + 4'L_3 + 4'L_4 + 3'L_5 + 3'L_6 + 2'L_7 + 2'L_8 + L_9 + L_10 + L_28 + L_29 + 2'L_30 + 2'L_31 + 3'L_32 + 3'L_33 + 4'L_34 + 4'L_35 + 5'L_36 + 5'L_37 + 6'L_38 + R_11 + R_12 + 2'R_13 + 2'R_14 + 3'R_15 + 3'R_16 + 4'R_17 + 4'R_18 + 5'R_19 + 5'R_20 + 6'R_21 + 6'R_22 + 7'R_23 + 7'R_24 + 8'R_25 + 8'R_26 + 9'R_27 + 9'R_28 + 11'R_29 + 12'R_30 + 14'R_31 + 15'R_32 + 16'R_33 + 17'R_34 + 18'R_35 + 19'R_36 + 20'R_37 + 21'R_38 + 22'R_39 = 215
invariant :P_2_9 + P_3_8 + P_3_9 + P_3_10 + P_4_7 + P_4_8 + 2'P_4_9 + P_4_10 + P_4_11 + P_5_6 + P_5_7 + 2'P_5_8 + 2'P_5_9 + 2'P_5_10 + P_5_11 + P_5_12 + P_6_5 + P_6_6 + 2'P_6_7 + 2'P_6_8 + 3'P_6_9 + 2'P_6_10 + 2'P_6_11 + P_6_12 + P_6_13 + P_7_4 + P_7_5 + 2'P_7_6 + 2'P_7_7 + 3'P_7_8 + 3'P_7_9 + 3'P_7_10 + 2'P_7_11 + 2'P_7_12 + P_7_13 + P_7_14 + P_8_3 + P_8_4 + 2'P_8_5 + 2'P_8_6 + 3'P_8_7 + 3'P_8_8 + 4'P_8_9 + 3'P_8_10 + 3'P_8_11 + 2'P_8_12 + 2'P_8_13 + P_8_14 + P_8_15 + P_9_2 + P_9_3 + 2'P_9_4 + 2'P_9_5 + 3'P_9_6 + 3'P_9_7 + 4'P_9_8 + 4'P_9_9 + 4'P_9_10 + 3'P_9_11 + 3'P_9_12 + 2'P_9_13 + 2'P_9_14 + P_9_15 + P_9_16 + P_10_3 + P_10_4 + 2'P_10_5 + 2'P_10_6 + 3'P_10_7 + 3'P_10_8 + 4'P_10_9 + 3'P_10_10 + 3'P_10_11 + 2'P_10_12 + 2'P_10_13 + P_10_14 + P_10_15 + -1'P_10_18 + P_11_4 + P_11_5 + 2'P_11_6 + 2'P_11_7 + 3'P_11_8 + 3'P_11_9 + 3'P_11_10 + 2'P_11_11 + 2'P_11_12 + P_11_13 + P_11_14 + -1'P_11_17 + P_12_5 + P_12_6 + 2'P_12_7 + 2'P_12_8 + 3'P_12_9 + 2'P_12_10 + 2'P_12_11 + P_12_12 + P_12_13 + -1'P_12_16 + P_13_6 + P_13_7 + 2'P_13_8 + 2'P_13_9 + 2'P_13_10 + P_13_11 + P_13_12 + -1'P_13_15 + P_14_7 + P_14_8 + 2'P_14_9 + P_14_10 + P_14_11 + -1'P_14_14 + P_15_8 + P_15_9 + P_15_10 + -1'P_15_13 + P_16_9 + -1'P_16_12 + -1'P_17_11 + -1'P_18_10 + -1'cX_10 + -2'cX_11 + -3'cX_12 + -4'cX_13 + -5'cX_14 + -6'cX_15 + -7'cX_16 + -8'cX_17 + -9'cX_18 + -10'cX_19 + -1'cY_10 + -2'cY_11 + -3'cY_12 + -4'cY_13 + -5'cY_14 + -6'cY_15 + -7'cY_16 + -8'cY_17 + -9'cY_18 + -10'cY_19 + 5'L_0 + 5'L_1 + 4'L_2 + 4'L_3 + 3'L_4 + 3'L_5 + 2'L_6 + 2'L_7 + L_8 + L_9 + L_29 + L_30 + 2'L_31 + 2'L_32 + 3'L_33 + 3'L_34 + 4'L_35 + 4'L_36 + 5'L_37 + 5'L_38 + R_12 + R_13 + 2'R_14 + 2'R_15 + 3'R_16 + 3'R_17 + 4'R_18 + 4'R_19 + 5'R_20 + 5'R_21 + 6'R_22 + 6'R_23 + 7'R_24 + 7'R_25 + 8'R_26 + 8'R_27 + 9'R_28 + 9'R_29 + 11'R_30 + 12'R_31 + 13'R_32 + 14'R_33 + 15'R_34 + 16'R_35 + 17'R_36 + 18'R_37 + 19'R_38 + 20'R_39 = 195
Presburger conditions satisfied. Using coverability to approximate state space in K-Induction.
// Phase 1: matrix 400 rows 518 cols
invariant :P_1_17 + -1'P_3_16 + -1'P_3_17 + -1'P_3_18 + -1'P_4_15 + -2'P_4_16 + -2'P_4_17 + -2'P_4_18 + -1'P_5_14 + -2'P_5_15 + -3'P_5_16 + -3'P_5_17 + -2'P_5_18 + -1'P_6_13 + -2'P_6_14 + -3'P_6_15 + -4'P_6_16 + -3'P_6_17 + -2'P_6_18 + -1'P_7_12 + -2'P_7_13 + -3'P_7_14 + -4'P_7_15 + -4'P_7_16 + -3'P_7_17 + -2'P_7_18 + -1'P_8_11 + -2'P_8_12 + -3'P_8_13 + -4'P_8_14 + -4'P_8_15 + -4'P_8_16 + -3'P_8_17 + -2'P_8_18 + -1'P_9_10 + -2'P_9_11 + -3'P_9_12 + -4'P_9_13 + -4'P_9_14 + -4'P_9_15 + -4'P_9_16 + -3'P_9_17 + -2'P_9_18 + -1'P_10_9 + -2'P_10_10 + -3'P_10_11 + -4'P_10_12 + -4'P_10_13 + -4'P_10_14 + -4'P_10_15 + -4'P_10_16 + -3'P_10_17 + -2'P_10_18 + -1'P_11_8 + -2'P_11_9 + -3'P_11_10 + -4'P_11_11 + -4'P_11_12 + -4'P_11_13 + -4'P_11_14 + -4'P_11_15 + -4'P_11_16 + -3'P_11_17 + -2'P_11_18 + -1'P_12_7 + -2'P_12_8 + -3'P_12_9 + -4'P_12_10 + -4'P_12_11 + -4'P_12_12 + -4'P_12_13 + -4'P_12_14 + -4'P_12_15 + -4'P_12_16 + -3'P_12_17 + -2'P_12_18 + -1'P_13_6 + -2'P_13_7 + -3'P_13_8 + -4'P_13_9 + -4'P_13_10 + -4'P_13_11 + -4'P_13_12 + -4'P_13_13 + -4'P_13_14 + -4'P_13_15 + -4'P_13_16 + -3'P_13_17 + -2'P_13_18 + -1'P_14_5 + -2'P_14_6 + -3'P_14_7 + -4'P_14_8 + -4'P_14_9 + -4'P_14_10 + -4'P_14_11 + -4'P_14_12 + -4'P_14_13 + -4'P_14_14 + -4'P_14_15 + -4'P_14_16 + -3'P_14_17 + -2'P_14_18 + -1'P_15_4 + -2'P_15_5 + -3'P_15_6 + -4'P_15_7 + -4'P_15_8 + -4'P_15_9 + -4'P_15_10 + -4'P_15_11 + -4'P_15_12 + -4'P_15_13 + -4'P_15_14 + -4'P_15_15 + -4'P_15_16 + -3'P_15_17 + -2'P_15_18 + -1'P_16_3 + -2'P_16_4 + -3'P_16_5 + -4'P_16_6 + -4'P_16_7 + -4'P_16_8 + -4'P_16_9 + -4'P_16_10 + -4'P_16_11 + -4'P_16_12 + -4'P_16_13 + -4'P_16_14 + -4'P_16_15 + -4'P_16_16 + -3'P_16_17 + -2'P_16_18 + -1'P_17_2 + -2'P_17_3 + -3'P_17_4 + -4'P_17_5 + -4'P_17_6 + -4'P_17_7 + -4'P_17_8 + -4'P_17_9 + -4'P_17_10 + -4'P_17_11 + -4'P_17_12 + -4'P_17_13 + -4'P_17_14 + -4'P_17_15 + -4'P_17_16 + -3'P_17_17 + -2'P_17_18 + -1'P_18_2 + -2'P_18_3 + -3'P_18_4 + -3'P_18_5 + -3'P_18_6 + -3'P_18_7 + -3'P_18_8 + -3'P_18_9 + -3'P_18_10 + -3'P_18_11 + -3'P_18_12 + -3'P_18_13 + -3'P_18_14 + -3'P_18_15 + -3'P_18_16 + -2'P_18_17 + -1'P_18_18 + -1'P_19_3 + -1'P_19_4 + -1'P_19_5 + -1'P_19_6 + -1'P_19_7 + -1'P_19_8 + -1'P_19_9 + -1'P_19_10 + -1'P_19_11 + -1'P_19_12 + -1'P_19_13 + -1'P_19_14 + -1'P_19_15 + -1'P_19_16 + cX_18 + 3'cX_19 + cY_17 + 2'cY_18 + 4'cY_19 + -3'L_0 + -2'L_1 + -1'L_2 + -1'L_37 + -2'L_38 + -1'R_20 + -2'R_21 + -3'R_22 + -4'R_23 + -4'R_24 + -4'R_25 + -4'R_26 + -4'R_27 + -4'R_28 + -4'R_29 + -4'R_30 + -4'R_31 + -4'R_32 + -4'R_33 + -4'R_34 + -4'R_35 + -4'R_36 + -4'R_37 + -5'R_38 + -7'R_39 = -76
invariant :P_2_4 + P_3_3 + P_3_4 + P_3_5 + P_4_2 + P_4_3 + 2'P_4_4 + P_4_5 + P_4_6 + P_5_3 + P_5_4 + P_5_5 + -1'P_5_8 + -1'P_5_9 + -1'P_5_10 + -1'P_5_11 + -1'P_5_12 + -1'P_5_13 + -1'P_5_14 + -1'P_5_15 + -1'P_5_16 + -1'P_5_17 + -1'P_5_18 + P_6_4 + -1'P_6_7 + -1'P_6_8 + -2'P_6_9 + -2'P_6_10 + -2'P_6_11 + -2'P_6_12 + -2'P_6_13 + -2'P_6_14 + -2'P_6_15 + -2'P_6_16 + -2'P_6_17 + -1'P_6_18 + -1'P_7_6 + -1'P_7_7 + -2'P_7_8 + -2'P_7_9 + -3'P_7_10 + -3'P_7_11 + -3'P_7_12 + -3'P_7_13 + -3'P_7_14 + -3'P_7_15 + -3'P_7_16 + -2'P_7_17 + -1'P_7_18 + -1'P_8_5 + -1'P_8_6 + -2'P_8_7 + -2'P_8_8 + -3'P_8_9 + -3'P_8_10 + -4'P_8_11 + -4'P_8_12 + -4'P_8_13 + -4'P_8_14 + -4'P_8_15 + -3'P_8_16 + -2'P_8_17 + -1'P_8_18 + -1'P_9_5 + -2'P_9_6 + -2'P_9_7 + -3'P_9_8 + -3'P_9_9 + -4'P_9_10 + -4'P_9_11 + -5'P_9_12 + -5'P_9_13 + -5'P_9_14 + -4'P_9_15 + -3'P_9_16 + -2'P_9_17 + -1'P_9_18 + -1'P_10_5 + -2'P_10_6 + -3'P_10_7 + -3'P_10_8 + -4'P_10_9 + -4'P_10_10 + -5'P_10_11 + -5'P_10_12 + -6'P_10_13 + -5'P_10_14 + -4'P_10_15 + -3'P_10_16 + -2'P_10_17 + -1'P_10_18 + -1'P_11_5 + -2'P_11_6 + -3'P_11_7 + -4'P_11_8 + -4'P_11_9 + -5'P_11_10 + -5'P_11_11 + -6'P_11_12 + -5'P_11_13 + -5'P_11_14 + -4'P_11_15 + -3'P_11_16 + -2'P_11_17 + -1'P_11_18 + -1'P_12_5 + -2'P_12_6 + -3'P_12_7 + -4'P_12_8 + -5'P_12_9 + -5'P_12_10 + -6'P_12_11 + -5'P_12_12 + -5'P_12_13 + -4'P_12_14 + -4'P_12_15 + -3'P_12_16 + -2'P_12_17 + -1'P_12_18 + -1'P_13_5 + -2'P_13_6 + -3'P_13_7 + -4'P_13_8 + -5'P_13_9 + -6'P_13_10 + -5'P_13_11 + -5'P_13_12 + -4'P_13_13 + -4'P_13_14 + -3'P_13_15 + -3'P_13_16 + -2'P_13_17 + -1'P_13_18 + -1'P_14_5 + -2'P_14_6 + -3'P_14_7 + -4'P_14_8 + -5'P_14_9 + -5'P_14_10 + -5'P_14_11 + -4'P_14_12 + -4'P_14_13 + -3'P_14_14 + -3'P_14_15 + -2'P_14_16 + -2'P_14_17 + -1'P_14_18 + -1'P_15_5 + -2'P_15_6 + -3'P_15_7 + -4'P_15_8 + -4'P_15_9 + -4'P_15_10 + -4'P_15_11 + -4'P_15_12 + -3'P_15_13 + -3'P_15_14 + -2'P_15_15 + -2'P_15_16 + -1'P_15_17 + -1'P_15_18 + -1'P_16_5 + -2'P_16_6 + -3'P_16_7 + -3'P_16_8 + -3'P_16_9 + -3'P_16_10 + -3'P_16_11 + -3'P_16_12 + -3'P_16_13 + -2'P_16_14 + -2'P_16_15 + -1'P_16_16 + -1'P_16_17 + -1'P_17_5 + -2'P_17_6 + -2'P_17_7 + -2'P_17_8 + -2'P_17_9 + -2'P_17_10 + -2'P_17_11 + -2'P_17_12 + -2'P_17_13 + -2'P_17_14 + -1'P_17_15 + -1'P_17_16 + -1'P_18_5 + -1'P_18_6 + -1'P_18_7 + -1'P_18_8 + -1'P_18_9 + -1'P_18_10 + -1'P_18_11 + -1'P_18_12 + -1'P_18_13 + -1'P_18_14 + -1'P_18_15 + -1'cX_5 + -2'cX_6 + -3'cX_7 + -4'cX_8 + -5'cX_9 + -6'cX_10 + -7'cX_11 + -8'cX_12 + -9'cX_13 + -10'cX_14 + -11'cX_15 + -12'cX_16 + -13'cX_17 + -14'cX_18 + -15'cX_19 + -1'cY_5 + -2'cY_6 + -3'cY_7 + -4'cY_8 + -5'cY_9 + -6'cY_10 + -7'cY_11 + -8'cY_12 + -9'cY_13 + -10'cY_14 + -11'cY_15 + -12'cY_16 + -13'cY_17 + -14'cY_18 + -15'cY_19 + 8'L_0 + 7'L_1 + 7'L_2 + 6'L_3 + 6'L_4 + 5'L_5 + 5'L_6 + 4'L_7 + 4'L_8 + 3'L_9 + 3'L_10 + 2'L_11 + 2'L_12 + L_13 + L_14 + L_24 + L_25 + 2'L_26 + 2'L_27 + 3'L_28 + 3'L_29 + 4'L_30 + 4'L_31 + 5'L_32 + 5'L_33 + 6'L_34 + 6'L_35 + 7'L_36 + 7'L_37 + 8'L_38 + R_7 + R_8 + 2'R_9 + 2'R_10 + 3'R_11 + 3'R_12 + 4'R_13 + 4'R_14 + 5'R_15 + 5'R_16 + 6'R_17 + 6'R_18 + 7'R_19 + 7'R_20 + 8'R_21 + 8'R_22 + 9'R_23 + 9'R_24 + 11'R_25 + 12'R_26 + 14'R_27 + 15'R_28 + 17'R_29 + 18'R_30 + 20'R_31 + 21'R_32 + 23'R_33 + 24'R_34 + 26'R_35 + 27'R_36 + 28'R_37 + 29'R_38 + 30'R_39 = 293
invariant :P_0_0 + R_1 = 1
invariant :P_17_1 + P_17_2 + P_17_3 + P_17_4 + P_17_5 + P_17_6 + P_17_7 + P_17_8 + P_17_9 + P_17_10 + P_17_11 + P_17_12 + P_17_13 + P_17_14 + P_17_15 + P_17_16 + P_17_17 + P_17_18 + P_18_2 + P_18_3 + P_18_4 + P_18_5 + P_18_6 + P_18_7 + P_18_8 + P_18_9 + P_18_10 + P_18_11 + P_18_12 + P_18_13 + P_18_14 + P_18_15 + P_18_16 + P_18_17 + P_19_3 + P_19_4 + P_19_5 + P_19_6 + P_19_7 + P_19_8 + P_19_9 + P_19_10 + P_19_11 + P_19_12 + P_19_13 + P_19_14 + P_19_15 + P_19_16 + cX_17 + cX_18 + cX_19 + -1'L_36 + -1'L_37 + -1'L_38 + -1'R_37 + -1'R_38 + -1'R_39 = -3
invariant :P_0_8 + P_3_8 + P_4_7 + P_4_8 + P_4_9 + P_5_6 + P_5_7 + 2'P_5_8 + P_5_9 + P_5_10 + P_6_5 + P_6_6 + 2'P_6_7 + 2'P_6_8 + 2'P_6_9 + P_6_10 + P_6_11 + P_7_4 + P_7_5 + 2'P_7_6 + 2'P_7_7 + 3'P_7_8 + 2'P_7_9 + 2'P_7_10 + P_7_11 + P_7_12 + P_8_3 + P_8_4 + 2'P_8_5 + 2'P_8_6 + 3'P_8_7 + 3'P_8_8 + 3'P_8_9 + 2'P_8_10 + 2'P_8_11 + P_8_12 + P_8_13 + P_9_2 + P_9_3 + 2'P_9_4 + 2'P_9_5 + 3'P_9_6 + 3'P_9_7 + 4'P_9_8 + 3'P_9_9 + 3'P_9_10 + 2'P_9_11 + 2'P_9_12 + P_9_13 + P_9_14 + P_10_3 + P_10_4 + 2'P_10_5 + 2'P_10_6 + 3'P_10_7 + 3'P_10_8 + 3'P_10_9 + 2'P_10_10 + 2'P_10_11 + P_10_12 + P_10_13 + -1'P_10_16 + -1'P_10_17 + -1'P_10_18 + P_11_4 + P_11_5 + 2'P_11_6 + 2'P_11_7 + 3'P_11_8 + 2'P_11_9 + 2'P_11_10 + P_11_11 + P_11_12 + -1'P_11_15 + -1'P_11_16 + -2'P_11_17 + -1'P_11_18 + P_12_5 + P_12_6 + 2'P_12_7 + 2'P_12_8 + 2'P_12_9 + P_12_10 + P_12_11 + -1'P_12_14 + -1'P_12_15 + -2'P_12_16 + -1'P_12_17 + -1'P_12_18 + P_13_6 + P_13_7 + 2'P_13_8 + P_13_9 + P_13_10 + -1'P_13_13 + -1'P_13_14 + -2'P_13_15 + -1'P_13_16 + -1'P_13_17 + P_14_7 + P_14_8 + P_14_9 + -1'P_14_12 + -1'P_14_13 + -2'P_14_14 + -1'P_14_15 + -1'P_14_16 + P_15_8 + -1'P_15_11 + -1'P_15_12 + -2'P_15_13 + -1'P_15_14 + -1'P_15_15 + -1'P_16_10 + -1'P_16_11 + -2'P_16_12 + -1'P_16_13 + -1'P_16_14 + -1'P_17_9 + -1'P_17_10 + -2'P_17_11 + -1'P_17_12 + -1'P_17_13 + -1'P_18_9 + -2'P_18_10 + -1'P_18_11 + -1'P_18_12 + -1'P_19_9 + -1'P_19_10 + -1'P_19_11 + -1'cX_10 + -2'cX_11 + -3'cX_12 + -4'cX_13 + -5'cX_14 + -6'cX_15 + -7'cX_16 + -8'cX_17 + -9'cX_18 + -10'cX_19 + -1'cY_9 + -2'cY_10 + -3'cY_11 + -4'cY_12 + -5'cY_13 + -6'cY_14 + -7'cY_15 + -8'cY_16 + -9'cY_17 + -10'cY_18 + -11'cY_19 + 6'L_0 + 6'L_1 + 5'L_2 + 5'L_3 + 4'L_4 + 4'L_5 + 3'L_6 + 3'L_7 + 2'L_8 + 2'L_9 + L_10 + L_11 + L_29 + L_30 + 2'L_31 + 2'L_32 + 3'L_33 + 3'L_34 + 4'L_35 + 4'L_36 + 5'L_37 + 5'L_38 + R_12 + R_13 + 2'R_14 + 2'R_15 + 3'R_16 + 3'R_17 + 4'R_18 + 4'R_19 + 5'R_20 + 5'R_21 + 6'R_22 + 6'R_23 + 7'R_24 + 7'R_25 + 8'R_26 + 8'R_27 + 9'R_28 + 9'R_29 + 11'R_30 + 12'R_31 + 14'R_32 + 15'R_33 + 16'R_34 + 17'R_35 + 18'R_36 + 19'R_37 + 20'R_38 + 21'R_39 = 204
invariant :P_0_5 + P_3_5 + P_4_4 + P_4_5 + P_4_6 + P_5_3 + P_5_4 + 2'P_5_5 + P_5_6 + P_5_7 + P_6_2 + P_6_3 + 2'P_6_4 + 2'P_6_5 + 2'P_6_6 + P_6_7 + P_6_8 + P_7_3 + P_7_4 + 2'P_7_5 + P_7_6 + P_7_7 + -1'P_7_10 + -1'P_7_11 + -1'P_7_12 + -1'P_7_13 + -1'P_7_14 + -1'P_7_15 + -1'P_7_16 + -1'P_7_17 + -1'P_7_18 + P_8_4 + P_8_5 + P_8_6 + -1'P_8_9 + -1'P_8_10 + -2'P_8_11 + -2'P_8_12 + -2'P_8_13 + -2'P_8_14 + -2'P_8_15 + -2'P_8_16 + -2'P_8_17 + -1'P_8_18 + P_9_5 + -1'P_9_8 + -1'P_9_9 + -2'P_9_10 + -2'P_9_11 + -3'P_9_12 + -3'P_9_13 + -3'P_9_14 + -3'P_9_15 + -3'P_9_16 + -2'P_9_17 + -1'P_9_18 + -1'P_10_7 + -1'P_10_8 + -2'P_10_9 + -2'P_10_10 + -3'P_10_11 + -3'P_10_12 + -4'P_10_13 + -4'P_10_14 + -4'P_10_15 + -3'P_10_16 + -2'P_10_17 + -1'P_10_18 + -1'P_11_6 + -1'P_11_7 + -2'P_11_8 + -2'P_11_9 + -3'P_11_10 + -3'P_11_11 + -4'P_11_12 + -4'P_11_13 + -5'P_11_14 + -4'P_11_15 + -3'P_11_16 + -2'P_11_17 + -1'P_11_18 + -1'P_12_6 + -2'P_12_7 + -2'P_12_8 + -3'P_12_9 + -3'P_12_10 + -4'P_12_11 + -4'P_12_12 + -5'P_12_13 + -4'P_12_14 + -4'P_12_15 + -3'P_12_16 + -2'P_12_17 + -1'P_12_18 + -1'P_13_6 + -2'P_13_7 + -3'P_13_8 + -3'P_13_9 + -4'P_13_10 + -4'P_13_11 + -5'P_13_12 + -4'P_13_13 + -4'P_13_14 + -3'P_13_15 + -3'P_13_16 + -2'P_13_17 + -1'P_13_18 + -1'P_14_6 + -2'P_14_7 + -3'P_14_8 + -4'P_14_9 + -4'P_14_10 + -5'P_14_11 + -4'P_14_12 + -4'P_14_13 + -3'P_14_14 + -3'P_14_15 + -2'P_14_16 + -2'P_14_17 + -1'P_14_18 + -1'P_15_6 + -2'P_15_7 + -3'P_15_8 + -4'P_15_9 + -5'P_15_10 + -4'P_15_11 + -4'P_15_12 + -3'P_15_13 + -3'P_15_14 + -2'P_15_15 + -2'P_15_16 + -1'P_15_17 + -1'P_15_18 + -1'P_16_6 + -2'P_16_7 + -3'P_16_8 + -4'P_16_9 + -4'P_16_10 + -4'P_16_11 + -3'P_16_12 + -3'P_16_13 + -2'P_16_14 + -2'P_16_15 + -1'P_16_16 + -1'P_16_17 + -1'P_17_6 + -2'P_17_7 + -3'P_17_8 + -3'P_17_9 + -3'P_17_10 + -3'P_17_11 + -3'P_17_12 + -2'P_17_13 + -2'P_17_14 + -1'P_17_15 + -1'P_17_16 + -1'P_18_6 + -2'P_18_7 + -2'P_18_8 + -2'P_18_9 + -2'P_18_10 + -2'P_18_11 + -2'P_18_12 + -2'P_18_13 + -1'P_18_14 + -1'P_18_15 + -1'P_19_6 + -1'P_19_7 + -1'P_19_8 + -1'P_19_9 + -1'P_19_10 + -1'P_19_11 + -1'P_19_12 + -1'P_19_13 + -1'P_19_14 + -1'cX_7 + -2'cX_8 + -3'cX_9 + -4'cX_10 + -5'cX_11 + -6'cX_12 + -7'cX_13 + -8'cX_14 + -9'cX_15 + -10'cX_16 + -11'cX_17 + -12'cX_18 + -13'cX_19 + -1'cY_6 + -2'cY_7 + -3'cY_8 + -4'cY_9 + -5'cY_10 + -6'cY_11 + -7'cY_12 + -8'cY_13 + -9'cY_14 + -10'cY_15 + -11'cY_16 + -12'cY_17 + -13'cY_18 + -14'cY_19 + 8'L_0 + 7'L_1 + 7'L_2 + 6'L_3 + 6'L_4 + 5'L_5 + 5'L_6 + 4'L_7 + 4'L_8 + 3'L_9 + 3'L_10 + 2'L_11 + 2'L_12 + L_13 + L_14 + L_26 + L_27 + 2'L_28 + 2'L_29 + 3'L_30 + 3'L_31 + 4'L_32 + 4'L_33 + 5'L_34 + 5'L_35 + 6'L_36 + 6'L_37 + 7'L_38 + R_9 + R_10 + 2'R_11 + 2'R_12 + 3'R_13 + 3'R_14 + 4'R_15 + 4'R_16 + 5'R_17 + 5'R_18 + 6'R_19 + 6'R_20 + 7'R_21 + 7'R_22 + 8'R_23 + 8'R_24 + 9'R_25 + 9'R_26 + 11'R_27 + 12'R_28 + 14'R_29 + 15'R_30 + 17'R_31 + 18'R_32 + 20'R_33 + 21'R_34 + 23'R_35 + 24'R_36 + 25'R_37 + 26'R_38 + 27'R_39 = 260
invariant :P_9_1 + P_9_2 + P_9_3 + P_9_4 + P_9_5 + P_9_6 + P_9_7 + P_9_8 + P_9_9 + P_9_10 + P_9_11 + P_9_12 + P_9_13 + P_9_14 + P_9_15 + P_9_16 + P_9_17 + P_9_18 + P_10_2 + P_10_3 + P_10_4 + P_10_5 + P_10_6 + P_10_7 + P_10_8 + P_10_9 + P_10_10 + P_10_11 + P_10_12 + P_10_13 + P_10_14 + P_10_15 + P_10_16 + P_10_17 + P_11_3 + P_11_4 + P_11_5 + P_11_6 + P_11_7 + P_11_8 + P_11_9 + P_11_10 + P_11_11 + P_11_12 + P_11_13 + P_11_14 + P_11_15 + P_11_16 + P_12_4 + P_12_5 + P_12_6 + P_12_7 + P_12_8 + P_12_9 + P_12_10 + P_12_11 + P_12_12 + P_12_13 + P_12_14 + P_12_15 + P_13_5 + P_13_6 + P_13_7 + P_13_8 + P_13_9 + P_13_10 + P_13_11 + P_13_12 + P_13_13 + P_13_14 + P_14_6 + P_14_7 + P_14_8 + P_14_9 + P_14_10 + P_14_11 + P_14_12 + P_14_13 + P_15_7 + P_15_8 + P_15_9 + P_15_10 + P_15_11 + P_15_12 + P_16_8 + P_16_9 + P_16_10 + P_16_11 + P_17_9 + P_17_10 + -1'P_19_9 + -1'P_19_10 + cX_9 + cX_10 + cX_11 + cX_12 + cX_13 + cX_14 + cX_15 + cX_16 + cX_17 + cX_18 + cX_19 + -1'L_28 + -1'L_29 + -1'L_30 + -1'L_31 + -1'L_32 + -1'L_33 + -1'L_34 + -1'L_35 + -1'L_36 + -1'L_37 + -1'L_38 + -1'R_29 + -1'R_30 + -1'R_31 + -1'R_32 + -1'R_33 + -1'R_34 + -1'R_35 + -1'R_36 + -1'R_37 + -1'R_38 + -1'R_39 = -11
invariant :P_2_6 + P_3_5 + P_3_6 + P_3_7 + P_4_4 + P_4_5 + 2'P_4_6 + P_4_7 + P_4_8 + P_5_3 + P_5_4 + 2'P_5_5 + 2'P_5_6 + 2'P_5_7 + P_5_8 + P_5_9 + P_6_2 + P_6_3 + 2'P_6_4 + 2'P_6_5 + 3'P_6_6 + 2'P_6_7 + 2'P_6_8 + P_6_9 + P_6_10 + P_7_3 + P_7_4 + 2'P_7_5 + 2'P_7_6 + 2'P_7_7 + P_7_8 + P_7_9 + -1'P_7_12 + -1'P_7_13 + -1'P_7_14 + -1'P_7_15 + -1'P_7_16 + -1'P_7_17 + -1'P_7_18 + P_8_4 + P_8_5 + 2'P_8_6 + P_8_7 + P_8_8 + -1'P_8_11 + -1'P_8_12 + -2'P_8_13 + -2'P_8_14 + -2'P_8_15 + -2'P_8_16 + -2'P_8_17 + -1'P_8_18 + P_9_5 + P_9_6 + P_9_7 + -1'P_9_10 + -1'P_9_11 + -2'P_9_12 + -2'P_9_13 + -3'P_9_14 + -3'P_9_15 + -3'P_9_16 + -2'P_9_17 + -1'P_9_18 + P_10_6 + -1'P_10_9 + -1'P_10_10 + -2'P_10_11 + -2'P_10_12 + -3'P_10_13 + -3'P_10_14 + -4'P_10_15 + -3'P_10_16 + -2'P_10_17 + -1'P_10_18 + -1'P_11_8 + -1'P_11_9 + -2'P_11_10 + -2'P_11_11 + -3'P_11_12 + -3'P_11_13 + -4'P_11_14 + -3'P_11_15 + -3'P_11_16 + -2'P_11_17 + -1'P_11_18 + -1'P_12_7 + -1'P_12_8 + -2'P_12_9 + -2'P_12_10 + -3'P_12_11 + -3'P_12_12 + -4'P_12_13 + -3'P_12_14 + -3'P_12_15 + -2'P_12_16 + -2'P_12_17 + -1'P_12_18 + -1'P_13_7 + -2'P_13_8 + -2'P_13_9 + -3'P_13_10 + -3'P_13_11 + -4'P_13_12 + -3'P_13_13 + -3'P_13_14 + -2'P_13_15 + -2'P_13_16 + -1'P_13_17 + -1'P_13_18 + -1'P_14_7 + -2'P_14_8 + -3'P_14_9 + -3'P_14_10 + -4'P_14_11 + -3'P_14_12 + -3'P_14_13 + -2'P_14_14 + -2'P_14_15 + -1'P_14_16 + -1'P_14_17 + -1'P_15_7 + -2'P_15_8 + -3'P_15_9 + -4'P_15_10 + -3'P_15_11 + -3'P_15_12 + -2'P_15_13 + -2'P_15_14 + -1'P_15_15 + -1'P_15_16 + -1'P_16_7 + -2'P_16_8 + -3'P_16_9 + -3'P_16_10 + -3'P_16_11 + -2'P_16_12 + -2'P_16_13 + -1'P_16_14 + -1'P_16_15 + -1'P_17_7 + -2'P_17_8 + -2'P_17_9 + -2'P_17_10 + -2'P_17_11 + -2'P_17_12 + -1'P_17_13 + -1'P_17_14 + -1'P_18_7 + -1'P_18_8 + -1'P_18_9 + -1'P_18_10 + -1'P_18_11 + -1'P_18_12 + -1'P_18_13 + -1'cX_7 + -2'cX_8 + -3'cX_9 + -4'cX_10 + -5'cX_11 + -6'cX_12 + -7'cX_13 + -8'cX_14 + -9'cX_15 + -10'cX_16 + -11'cX_17 + -12'cX_18 + -13'cX_19 + -1'cY_7 + -2'cY_8 + -3'cY_9 + -4'cY_10 + -5'cY_11 + -6'cY_12 + -7'cY_13 + -8'cY_14 + -9'cY_15 + -10'cY_16 + -11'cY_17 + -12'cY_18 + -13'cY_19 + 7'L_0 + 6'L_1 + 6'L_2 + 5'L_3 + 5'L_4 + 4'L_5 + 4'L_6 + 3'L_7 + 3'L_8 + 2'L_9 + 2'L_10 + L_11 + L_12 + L_26 + L_27 + 2'L_28 + 2'L_29 + 3'L_30 + 3'L_31 + 4'L_32 + 4'L_33 + 5'L_34 + 5'L_35 + 6'L_36 + 6'L_37 + 7'L_38 + R_9 + R_10 + 2'R_11 + 2'R_12 + 3'R_13 + 3'R_14 + 4'R_15 + 4'R_16 + 5'R_17 + 5'R_18 + 6'R_19 + 6'R_20 + 7'R_21 + 7'R_22 + 8'R_23 + 8'R_24 + 9'R_25 + 9'R_26 + 11'R_27 + 12'R_28 + 14'R_29 + 15'R_30 + 17'R_31 + 18'R_32 + 20'R_33 + 21'R_34 + 22'R_35 + 23'R_36 + 24'R_37 + 25'R_38 + 26'R_39 = 254
invariant :P_2_13 + P_3_12 + P_3_13 + P_3_14 + P_4_11 + P_4_12 + 2'P_4_13 + P_4_14 + P_4_15 + P_5_10 + P_5_11 + 2'P_5_12 + 2'P_5_13 + 2'P_5_14 + P_5_15 + P_5_16 + P_6_9 + P_6_10 + 2'P_6_11 + 2'P_6_12 + 3'P_6_13 + 2'P_6_14 + 2'P_6_15 + P_6_16 + P_6_17 + P_7_8 + P_7_9 + 2'P_7_10 + 2'P_7_11 + 3'P_7_12 + 3'P_7_13 + 3'P_7_14 + 2'P_7_15 + 2'P_7_16 + P_7_17 + P_7_18 + P_8_7 + P_8_8 + 2'P_8_9 + 2'P_8_10 + 3'P_8_11 + 3'P_8_12 + 4'P_8_13 + 3'P_8_14 + 3'P_8_15 + 2'P_8_16 + 2'P_8_17 + P_8_18 + P_9_6 + P_9_7 + 2'P_9_8 + 2'P_9_9 + 3'P_9_10 + 3'P_9_11 + 4'P_9_12 + 4'P_9_13 + 4'P_9_14 + 3'P_9_15 + 3'P_9_16 + 2'P_9_17 + P_9_18 + P_10_5 + P_10_6 + 2'P_10_7 + 2'P_10_8 + 3'P_10_9 + 3'P_10_10 + 4'P_10_11 + 4'P_10_12 + 5'P_10_13 + 4'P_10_14 + 4'P_10_15 + 3'P_10_16 + 2'P_10_17 + P_10_18 + P_11_4 + P_11_5 + 2'P_11_6 + 2'P_11_7 + 3'P_11_8 + 3'P_11_9 + 4'P_11_10 + 4'P_11_11 + 5'P_11_12 + 5'P_11_13 + 5'P_11_14 + 4'P_11_15 + 3'P_11_16 + 2'P_11_17 + P_11_18 + P_12_3 + P_12_4 + 2'P_12_5 + 2'P_12_6 + 3'P_12_7 + 3'P_12_8 + 4'P_12_9 + 4'P_12_10 + 5'P_12_11 + 5'P_12_12 + 6'P_12_13 + 5'P_12_14 + 4'P_12_15 + 3'P_12_16 + 2'P_12_17 + P_12_18 + P_13_2 + P_13_3 + 2'P_13_4 + 2'P_13_5 + 3'P_13_6 + 3'P_13_7 + 4'P_13_8 + 4'P_13_9 + 5'P_13_10 + 5'P_13_11 + 6'P_13_12 + 6'P_13_13 + 5'P_13_14 + 4'P_13_15 + 3'P_13_16 + 2'P_13_17 + P_13_18 + P_14_3 + P_14_4 + 2'P_14_5 + 2'P_14_6 + 3'P_14_7 + 3'P_14_8 + 4'P_14_9 + 4'P_14_10 + 5'P_14_11 + 5'P_14_12 + 5'P_14_13 + 4'P_14_14 + 3'P_14_15 + 2'P_14_16 + P_14_17 + P_15_4 + P_15_5 + 2'P_15_6 + 2'P_15_7 + 3'P_15_8 + 3'P_15_9 + 4'P_15_10 + 4'P_15_11 + 4'P_15_12 + 4'P_15_13 + 3'P_15_14 + 2'P_15_15 + P_15_16 + P_16_5 + P_16_6 + 2'P_16_7 + 2'P_16_8 + 3'P_16_9 + 3'P_16_10 + 3'P_16_11 + 3'P_16_12 + 3'P_16_13 + 2'P_16_14 + P_16_15 + P_17_6 + P_17_7 + 2'P_17_8 + 2'P_17_9 + 2'P_17_10 + 2'P_17_11 + 2'P_17_12 + 2'P_17_13 + P_17_14 + P_18_7 + P_18_8 + P_18_9 + P_18_10 + P_18_11 + P_18_12 + P_18_13 + -1'cX_14 + -2'cX_15 + -3'cX_16 + -4'cX_17 + -5'cX_18 + -6'cX_19 + -1'cY_14 + -2'cY_15 + -3'cY_16 + -4'cY_17 + -5'cY_18 + -6'cY_19 + 3'L_0 + 3'L_1 + 2'L_2 + 2'L_3 + L_4 + L_5 + L_33 + L_34 + 2'L_35 + 2'L_36 + 3'L_37 + 3'L_38 + R_16 + R_17 + 2'R_18 + 2'R_19 + 3'R_20 + 3'R_21 + 4'R_22 + 4'R_23 + 5'R_24 + 5'R_25 + 6'R_26 + 6'R_27 + 6'R_28 + 6'R_29 + 6'R_30 + 6'R_31 + 6'R_32 + 6'R_33 + 7'R_34 + 8'R_35 + 9'R_36 + 10'R_37 + 11'R_38 + 12'R_39 = 117
invariant :P_3_1 + P_3_2 + P_3_3 + P_3_4 + P_3_5 + P_3_6 + P_3_7 + P_3_8 + P_3_9 + P_3_10 + P_3_11 + P_3_12 + P_3_13 + P_3_14 + P_3_15 + P_3_16 + P_3_17 + P_3_18 + P_4_2 + P_4_3 + P_4_4 + P_4_5 + P_4_6 + P_4_7 + P_4_8 + P_4_9 + P_4_10 + P_4_11 + P_4_12 + P_4_13 + P_4_14 + P_4_15 + P_4_16 + P_4_17 + P_5_3 + P_5_4 + P_5_5 + P_5_6 + P_5_7 + P_5_8 + P_5_9 + P_5_10 + P_5_11 + P_5_12 + P_5_13 + P_5_14 + P_5_15 + P_5_16 + P_6_4 + P_6_5 + P_6_6 + P_6_7 + P_6_8 + P_6_9 + P_6_10 + P_6_11 + P_6_12 + P_6_13 + P_6_14 + P_6_15 + P_7_5 + P_7_6 + P_7_7 + P_7_8 + P_7_9 + P_7_10 + P_7_11 + P_7_12 + P_7_13 + P_7_14 + P_8_6 + P_8_7 + P_8_8 + P_8_9 + P_8_10 + P_8_11 + P_8_12 + P_8_13 + P_9_7 + P_9_8 + P_9_9 + P_9_10 + P_9_11 + P_9_12 + P_10_8 + P_10_9 + P_10_10 + P_10_11 + P_11_9 + P_11_10 + -1'P_13_9 + -1'P_13_10 + -1'P_14_8 + -1'P_14_9 + -1'P_14_10 + -1'P_14_11 + -1'P_15_7 + -1'P_15_8 + -1'P_15_9 + -1'P_15_10 + -1'P_15_11 + -1'P_15_12 + -1'P_16_6 + -1'P_16_7 + -1'P_16_8 + -1'P_16_9 + -1'P_16_10 + -1'P_16_11 + -1'P_16_12 + -1'P_16_13 + -1'P_17_5 + -1'P_17_6 + -1'P_17_7 + -1'P_17_8 + -1'P_17_9 + -1'P_17_10 + -1'P_17_11 + -1'P_17_12 + -1'P_17_13 + -1'P_17_14 + -1'P_18_4 + -1'P_18_5 + -1'P_18_6 + -1'P_18_7 + -1'P_18_8 + -1'P_18_9 + -1'P_18_10 + -1'P_18_11 + -1'P_18_12 + -1'P_18_13 + -1'P_18_14 + -1'P_18_15 + -1'P_19_3 + -1'P_19_4 + -1'P_19_5 + -1'P_19_6 + -1'P_19_7 + -1'P_19_8 + -1'P_19_9 + -1'P_19_10 + -1'P_19_11 + -1'P_19_12 + -1'P_19_13 + -1'P_19_14 + -1'P_19_15 + -1'P_19_16 + cX_3 + cX_4 + cX_5 + cX_6 + cX_7 + cX_8 + cX_9 + cX_10 + cX_11 + cX_12 + cX_13 + cX_14 + cX_15 + cX_16 + cX_17 + cX_18 + cX_19 + -1'L_22 + -1'L_23 + -1'L_24 + -1'L_25 + -1'L_26 + -1'L_27 + -1'L_28 + -1'L_29 + -1'L_30 + -1'L_31 + -1'L_32 + -1'L_33 + -1'L_34 + -1'L_35 + -1'L_36 + -1'L_37 + -1'L_38 + -1'R_23 + -1'R_24 + -1'R_25 + -1'R_26 + -1'R_27 + -1'R_28 + -1'R_29 + -1'R_30 + -1'R_31 + -1'R_32 + -1'R_33 + -1'R_34 + -1'R_35 + -1'R_36 + -1'R_37 + -1'R_38 + -1'R_39 = -17
invariant :P_2_17 + P_3_16 + P_3_17 + P_3_18 + P_4_15 + P_4_16 + 2'P_4_17 + P_4_18 + P_5_14 + P_5_15 + 2'P_5_16 + 2'P_5_17 + P_5_18 + P_6_13 + P_6_14 + 2'P_6_15 + 2'P_6_16 + 2'P_6_17 + P_6_18 + P_7_12 + P_7_13 + 2'P_7_14 + 2'P_7_15 + 2'P_7_16 + 2'P_7_17 + P_7_18 + P_8_11 + P_8_12 + 2'P_8_13 + 2'P_8_14 + 2'P_8_15 + 2'P_8_16 + 2'P_8_17 + P_8_18 + P_9_10 + P_9_11 + 2'P_9_12 + 2'P_9_13 + 2'P_9_14 + 2'P_9_15 + 2'P_9_16 + 2'P_9_17 + P_9_18 + P_10_9 + P_10_10 + 2'P_10_11 + 2'P_10_12 + 2'P_10_13 + 2'P_10_14 + 2'P_10_15 + 2'P_10_16 + 2'P_10_17 + P_10_18 + P_11_8 + P_11_9 + 2'P_11_10 + 2'P_11_11 + 2'P_11_12 + 2'P_11_13 + 2'P_11_14 + 2'P_11_15 + 2'P_11_16 + 2'P_11_17 + P_11_18 + P_12_7 + P_12_8 + 2'P_12_9 + 2'P_12_10 + 2'P_12_11 + 2'P_12_12 + 2'P_12_13 + 2'P_12_14 + 2'P_12_15 + 2'P_12_16 + 2'P_12_17 + P_12_18 + P_13_6 + P_13_7 + 2'P_13_8 + 2'P_13_9 + 2'P_13_10 + 2'P_13_11 + 2'P_13_12 + 2'P_13_13 + 2'P_13_14 + 2'P_13_15 + 2'P_13_16 + 2'P_13_17 + P_13_18 + P_14_5 + P_14_6 + 2'P_14_7 + 2'P_14_8 + 2'P_14_9 + 2'P_14_10 + 2'P_14_11 + 2'P_14_12 + 2'P_14_13 + 2'P_14_14 + 2'P_14_15 + 2'P_14_16 + 2'P_14_17 + P_14_18 + P_15_4 + P_15_5 + 2'P_15_6 + 2'P_15_7 + 2'P_15_8 + 2'P_15_9 + 2'P_15_10 + 2'P_15_11 + 2'P_15_12 + 2'P_15_13 + 2'P_15_14 + 2'P_15_15 + 2'P_15_16 + 2'P_15_17 + P_15_18 + P_16_3 + P_16_4 + 2'P_16_5 + 2'P_16_6 + 2'P_16_7 + 2'P_16_8 + 2'P_16_9 + 2'P_16_10 + 2'P_16_11 + 2'P_16_12 + 2'P_16_13 + 2'P_16_14 + 2'P_16_15 + 2'P_16_16 + 2'P_16_17 + P_16_18 + P_17_2 + P_17_3 + 2'P_17_4 + 2'P_17_5 + 2'P_17_6 + 2'P_17_7 + 2'P_17_8 + 2'P_17_9 + 2'P_17_10 + 2'P_17_11 + 2'P_17_12 + 2'P_17_13 + 2'P_17_14 + 2'P_17_15 + 2'P_17_16 + 2'P_17_17 + P_17_18 + P_18_3 + P_18_4 + P_18_5 + P_18_6 + P_18_7 + P_18_8 + P_18_9 + P_18_10 + P_18_11 + P_18_12 + P_18_13 + P_18_14 + P_18_15 + P_18_16 + P_18_17 + -1'cX_18 + -2'cX_19 + -1'cY_18 + -2'cY_19 + L_0 + L_1 + L_37 + L_38 + R_20 + R_21 + 2'R_22 + 2'R_23 + 2'R_24 + 2'R_25 + 2'R_26 + 2'R_27 + 2'R_28 + 2'R_29 + 2'R_30 + 2'R_31 + 2'R_32 + 2'R_33 + 2'R_34 + 2'R_35 + 2'R_36 + 2'R_37 + 3'R_38 + 4'R_39 = 39
invariant :P_2_2 + -1'P_3_4 + -1'P_3_5 + -1'P_3_6 + -1'P_3_7 + -1'P_3_8 + -1'P_3_9 + -1'P_3_10 + -1'P_3_11 + -1'P_3_12 + -1'P_3_13 + -1'P_3_14 + -1'P_3_15 + -1'P_3_16 + -1'P_3_17 + -1'P_3_18 + -1'P_4_3 + -1'P_4_4 + -2'P_4_5 + -2'P_4_6 + -2'P_4_7 + -2'P_4_8 + -2'P_4_9 + -2'P_4_10 + -2'P_4_11 + -2'P_4_12 + -2'P_4_13 + -2'P_4_14 + -2'P_4_15 + -2'P_4_16 + -2'P_4_17 + -1'P_4_18 + -1'P_5_3 + -2'P_5_4 + -2'P_5_5 + -3'P_5_6 + -3'P_5_7 + -3'P_5_8 + -3'P_5_9 + -3'P_5_10 + -3'P_5_11 + -3'P_5_12 + -3'P_5_13 + -3'P_5_14 + -3'P_5_15 + -3'P_5_16 + -2'P_5_17 + -1'P_5_18 + -1'P_6_3 + -2'P_6_4 + -3'P_6_5 + -3'P_6_6 + -4'P_6_7 + -4'P_6_8 + -4'P_6_9 + -4'P_6_10 + -4'P_6_11 + -4'P_6_12 + -4'P_6_13 + -4'P_6_14 + -4'P_6_15 + -3'P_6_16 + -2'P_6_17 + -1'P_6_18 + -1'P_7_3 + -2'P_7_4 + -3'P_7_5 + -4'P_7_6 + -4'P_7_7 + -5'P_7_8 + -5'P_7_9 + -5'P_7_10 + -5'P_7_11 + -5'P_7_12 + -5'P_7_13 + -5'P_7_14 + -4'P_7_15 + -3'P_7_16 + -2'P_7_17 + -1'P_7_18 + -1'P_8_3 + -2'P_8_4 + -3'P_8_5 + -4'P_8_6 + -5'P_8_7 + -5'P_8_8 + -6'P_8_9 + -6'P_8_10 + -6'P_8_11 + -6'P_8_12 + -6'P_8_13 + -5'P_8_14 + -4'P_8_15 + -3'P_8_16 + -2'P_8_17 + -1'P_8_18 + -1'P_9_3 + -2'P_9_4 + -3'P_9_5 + -4'P_9_6 + -5'P_9_7 + -6'P_9_8 + -6'P_9_9 + -7'P_9_10 + -7'P_9_11 + -7'P_9_12 + -6'P_9_13 + -5'P_9_14 + -4'P_9_15 + -3'P_9_16 + -2'P_9_17 + -1'P_9_18 + -1'P_10_3 + -2'P_10_4 + -3'P_10_5 + -4'P_10_6 + -5'P_10_7 + -6'P_10_8 + -7'P_10_9 + -7'P_10_10 + -8'P_10_11 + -7'P_10_12 + -6'P_10_13 + -5'P_10_14 + -4'P_10_15 + -3'P_10_16 + -2'P_10_17 + -1'P_10_18 + -1'P_11_3 + -2'P_11_4 + -3'P_11_5 + -4'P_11_6 + -5'P_11_7 + -6'P_11_8 + -7'P_11_9 + -8'P_11_10 + -7'P_11_11 + -7'P_11_12 + -6'P_11_13 + -5'P_11_14 + -4'P_11_15 + -3'P_11_16 + -2'P_11_17 + -1'P_11_18 + -1'P_12_3 + -2'P_12_4 + -3'P_12_5 + -4'P_12_6 + -5'P_12_7 + -6'P_12_8 + -7'P_12_9 + -7'P_12_10 + -7'P_12_11 + -6'P_12_12 + -6'P_12_13 + -5'P_12_14 + -4'P_12_15 + -3'P_12_16 + -2'P_12_17 + -1'P_12_18 + -1'P_13_3 + -2'P_13_4 + -3'P_13_5 + -4'P_13_6 + -5'P_13_7 + -6'P_13_8 + -6'P_13_9 + -6'P_13_10 + -6'P_13_11 + -6'P_13_12 + -5'P_13_13 + -5'P_13_14 + -4'P_13_15 + -3'P_13_16 + -2'P_13_17 + -1'P_13_18 + -1'P_14_3 + -2'P_14_4 + -3'P_14_5 + -4'P_14_6 + -5'P_14_7 + -5'P_14_8 + -5'P_14_9 + -5'P_14_10 + -5'P_14_11 + -5'P_14_12 + -5'P_14_13 + -4'P_14_14 + -4'P_14_15 + -3'P_14_16 + -2'P_14_17 + -1'P_14_18 + -1'P_15_3 + -2'P_15_4 + -3'P_15_5 + -4'P_15_6 + -4'P_15_7 + -4'P_15_8 + -4'P_15_9 + -4'P_15_10 + -4'P_15_11 + -4'P_15_12 + -4'P_15_13 + -4'P_15_14 + -3'P_15_15 + -3'P_15_16 + -2'P_15_17 + -1'P_15_18 + -1'P_16_3 + -2'P_16_4 + -3'P_16_5 + -3'P_16_6 + -3'P_16_7 + -3'P_16_8 + -3'P_16_9 + -3'P_16_10 + -3'P_16_11 + -3'P_16_12 + -3'P_16_13 + -3'P_16_14 + -3'P_16_15 + -2'P_16_16 + -2'P_16_17 + -1'P_16_18 + -1'P_17_3 + -2'P_17_4 + -2'P_17_5 + -2'P_17_6 + -2'P_17_7 + -2'P_17_8 + -2'P_17_9 + -2'P_17_10 + -2'P_17_11 + -2'P_17_12 + -2'P_17_13 + -2'P_17_14 + -2'P_17_15 + -2'P_17_16 + -1'P_17_17 + -1'P_17_18 + -1'P_18_3 + -1'P_18_4 + -1'P_18_5 + -1'P_18_6 + -1'P_18_7 + -1'P_18_8 + -1'P_18_9 + -1'P_18_10 + -1'P_18_11 + -1'P_18_12 + -1'P_18_13 + -1'P_18_14 + -1'P_18_15 + -1'P_18_16 + -1'P_18_17 + -1'cX_3 + -2'cX_4 + -3'cX_5 + -4'cX_6 + -5'cX_7 + -6'cX_8 + -7'cX_9 + -8'cX_10 + -9'cX_11 + -10'cX_12 + -11'cX_13 + -12'cX_14 + -13'cX_15 + -14'cX_16 + -15'cX_17 + -16'cX_18 + -17'cX_19 + -1'cY_3 + -2'cY_4 + -3'cY_5 + -4'cY_6 + -5'cY_7 + -6'cY_8 + -7'cY_9 + -8'cY_10 + -9'cY_11 + -10'cY_12 + -11'cY_13 + -12'cY_14 + -13'cY_15 + -14'cY_16 + -15'cY_17 + -16'cY_18 + -17'cY_19 + 9'L_0 + 8'L_1 + 8'L_2 + 7'L_3 + 7'L_4 + 6'L_5 + 6'L_6 + 5'L_7 + 5'L_8 + 4'L_9 + 4'L_10 + 3'L_11 + 3'L_12 + 2'L_13 + 2'L_14 + L_15 + L_16 + L_22 + L_23 + 2'L_24 + 2'L_25 + 3'L_26 + 3'L_27 + 4'L_28 + 4'L_29 + 5'L_30 + 5'L_31 + 6'L_32 + 6'L_33 + 7'L_34 + 7'L_35 + 8'L_36 + 8'L_37 + 9'L_38 + R_5 + R_6 + 2'R_7 + 2'R_8 + 3'R_9 + 3'R_10 + 4'R_11 + 4'R_12 + 5'R_13 + 5'R_14 + 6'R_15 + 6'R_16 + 7'R_17 + 7'R_18 + 8'R_19 + 8'R_20 + 9'R_21 + 9'R_22 + 11'R_23 + 12'R_24 + 14'R_25 + 15'R_26 + 17'R_27 + 18'R_28 + 20'R_29 + 21'R_30 + 23'R_31 + 24'R_32 + 26'R_33 + 27'R_34 + 29'R_35 + 30'R_36 + 32'R_37 + 33'R_38 + 34'R_39 = 332
invariant :P_17_19 + P_18_18 + P_19_17 + R_37 = 1
invariant :P_5_1 + P_5_2 + P_5_3 + P_5_4 + P_5_5 + P_5_6 + P_5_7 + P_5_8 + P_5_9 + P_5_10 + P_5_11 + P_5_12 + P_5_13 + P_5_14 + P_5_15 + P_5_16 + P_5_17 + P_5_18 + P_6_2 + P_6_3 + P_6_4 + P_6_5 + P_6_6 + P_6_7 + P_6_8 + P_6_9 + P_6_10 + P_6_11 + P_6_12 + P_6_13 + P_6_14 + P_6_15 + P_6_16 + P_6_17 + P_7_3 + P_7_4 + P_7_5 + P_7_6 + P_7_7 + P_7_8 + P_7_9 + P_7_10 + P_7_11 + P_7_12 + P_7_13 + P_7_14 + P_7_15 + P_7_16 + P_8_4 + P_8_5 + P_8_6 + P_8_7 + P_8_8 + P_8_9 + P_8_10 + P_8_11 + P_8_12 + P_8_13 + P_8_14 + P_8_15 + P_9_5 + P_9_6 + P_9_7 + P_9_8 + P_9_9 + P_9_10 + P_9_11 + P_9_12 + P_9_13 + P_9_14 + P_10_6 + P_10_7 + P_10_8 + P_10_9 + P_10_10 + P_10_11 + P_10_12 + P_10_13 + P_11_7 + P_11_8 + P_11_9 + P_11_10 + P_11_11 + P_11_12 + P_12_8 + P_12_9 + P_12_10 + P_12_11 + P_13_9 + P_13_10 + -1'P_15_9 + -1'P_15_10 + -1'P_16_8 + -1'P_16_9 + -1'P_16_10 + -1'P_16_11 + -1'P_17_7 + -1'P_17_8 + -1'P_17_9 + -1'P_17_10 + -1'P_17_11 + -1'P_17_12 + -1'P_18_6 + -1'P_18_7 + -1'P_18_8 + -1'P_18_9 + -1'P_18_10 + -1'P_18_11 + -1'P_18_12 + -1'P_18_13 + -1'P_19_5 + -1'P_19_6 + -1'P_19_7 + -1'P_19_8 + -1'P_19_9 + -1'P_19_10 + -1'P_19_11 + -1'P_19_12 + -1'P_19_13 + -1'P_19_14 + cX_5 + cX_6 + cX_7 + cX_8 + cX_9 + cX_10 + cX_11 + cX_12 + cX_13 + cX_14 + cX_15 + cX_16 + cX_17 + cX_18 + cX_19 + -1'L_24 + -1'L_25 + -1'L_26 + -1'L_27 + -1'L_28 + -1'L_29 + -1'L_30 + -1'L_31 + -1'L_32 + -1'L_33 + -1'L_34 + -1'L_35 + -1'L_36 + -1'L_37 + -1'L_38 + -1'R_25 + -1'R_26 + -1'R_27 + -1'R_28 + -1'R_29 + -1'R_30 + -1'R_31 + -1'R_32 + -1'R_33 + -1'R_34 + -1'R_35 + -1'R_36 + -1'R_37 + -1'R_38 + -1'R_39 = -15
invariant :P_0_11 + P_3_11 + P_4_10 + P_4_11 + P_4_12 + P_5_9 + P_5_10 + 2'P_5_11 + P_5_12 + P_5_13 + P_6_8 + P_6_9 + 2'P_6_10 + 2'P_6_11 + 2'P_6_12 + P_6_13 + P_6_14 + P_7_7 + P_7_8 + 2'P_7_9 + 2'P_7_10 + 3'P_7_11 + 2'P_7_12 + 2'P_7_13 + P_7_14 + P_7_15 + P_8_6 + P_8_7 + 2'P_8_8 + 2'P_8_9 + 3'P_8_10 + 3'P_8_11 + 3'P_8_12 + 2'P_8_13 + 2'P_8_14 + P_8_15 + P_8_16 + P_9_5 + P_9_6 + 2'P_9_7 + 2'P_9_8 + 3'P_9_9 + 3'P_9_10 + 4'P_9_11 + 3'P_9_12 + 3'P_9_13 + 2'P_9_14 + 2'P_9_15 + P_9_16 + P_9_17 + P_10_4 + P_10_5 + 2'P_10_6 + 2'P_10_7 + 3'P_10_8 + 3'P_10_9 + 4'P_10_10 + 4'P_10_11 + 4'P_10_12 + 3'P_10_13 + 3'P_10_14 + 2'P_10_15 + 2'P_10_16 + P_10_17 + P_10_18 + P_11_3 + P_11_4 + 2'P_11_5 + 2'P_11_6 + 3'P_11_7 + 3'P_11_8 + 4'P_11_9 + 4'P_11_10 + 5'P_11_11 + 4'P_11_12 + 4'P_11_13 + 3'P_11_14 + 3'P_11_15 + 2'P_11_16 + 2'P_11_17 + P_11_18 + P_12_2 + P_12_3 + 2'P_12_4 + 2'P_12_5 + 3'P_12_6 + 3'P_12_7 + 4'P_12_8 + 4'P_12_9 + 5'P_12_10 + 5'P_12_11 + 5'P_12_12 + 4'P_12_13 + 4'P_12_14 + 3'P_12_15 + 3'P_12_16 + 2'P_12_17 + P_12_18 + P_13_3 + P_13_4 + 2'P_13_5 + 2'P_13_6 + 3'P_13_7 + 3'P_13_8 + 4'P_13_9 + 4'P_13_10 + 5'P_13_11 + 4'P_13_12 + 4'P_13_13 + 3'P_13_14 + 3'P_13_15 + 2'P_13_16 + P_13_17 + P_14_4 + P_14_5 + 2'P_14_6 + 2'P_14_7 + 3'P_14_8 + 3'P_14_9 + 4'P_14_10 + 4'P_14_11 + 4'P_14_12 + 3'P_14_13 + 3'P_14_14 + 2'P_14_15 + P_14_16 + P_15_5 + P_15_6 + 2'P_15_7 + 2'P_15_8 + 3'P_15_9 + 3'P_15_10 + 4'P_15_11 + 3'P_15_12 + 3'P_15_13 + 2'P_15_14 + P_15_15 + P_16_6 + P_16_7 + 2'P_16_8 + 2'P_16_9 + 3'P_16_10 + 3'P_16_11 + 3'P_16_12 + 2'P_16_13 + P_16_14 + P_17_7 + P_17_8 + 2'P_17_9 + 2'P_17_10 + 3'P_17_11 + 2'P_17_12 + P_17_13 + P_18_8 + P_18_9 + 2'P_18_10 + 2'P_18_11 + P_18_12 + P_19_9 + P_19_10 + P_19_11 + -1'cX_13 + -2'cX_14 + -3'cX_15 + -4'cX_16 + -5'cX_17 + -6'cX_18 + -7'cX_19 + -1'cY_12 + -2'cY_13 + -3'cY_14 + -4'cY_15 + -5'cY_16 + -6'cY_17 + -7'cY_18 + -8'cY_19 + 5'L_0 + 4'L_1 + 4'L_2 + 3'L_3 + 3'L_4 + 2'L_5 + 2'L_6 + L_7 + L_8 + L_32 + L_33 + 2'L_34 + 2'L_35 + 3'L_36 + 3'L_37 + 4'L_38 + R_15 + R_16 + 2'R_17 + 2'R_18 + 3'R_19 + 3'R_20 + 4'R_21 + 4'R_22 + 5'R_23 + 5'R_24 + 6'R_25 + 6'R_26 + 7'R_27 + 7'R_28 + 8'R_29 + 8'R_30 + 8'R_31 + 8'R_32 + 9'R_33 + 10'R_34 + 11'R_35 + 12'R_36 + 13'R_37 + 14'R_38 + 15'R_39 = 149
invariant :P_10_0 + -1'P_11_2 + -1'P_11_3 + -1'P_11_4 + -1'P_11_5 + -1'P_11_6 + -1'P_11_7 + -1'P_11_8 + -1'P_11_9 + -1'P_11_10 + -1'P_11_11 + -1'P_11_12 + -1'P_11_13 + -1'P_11_14 + -1'P_11_15 + -1'P_11_16 + -1'P_11_17 + -1'P_11_18 + -1'P_12_3 + -1'P_12_4 + -1'P_12_5 + -1'P_12_6 + -1'P_12_7 + -1'P_12_8 + -1'P_12_9 + -1'P_12_10 + -1'P_12_11 + -1'P_12_12 + -1'P_12_13 + -1'P_12_14 + -1'P_12_15 + -1'P_12_16 + -1'P_12_17 + -1'P_13_4 + -1'P_13_5 + -1'P_13_6 + -1'P_13_7 + -1'P_13_8 + -1'P_13_9 + -1'P_13_10 + -1'P_13_11 + -1'P_13_12 + -1'P_13_13 + -1'P_13_14 + -1'P_13_15 + -1'P_13_16 + -1'P_14_5 + -1'P_14_6 + -1'P_14_7 + -1'P_14_8 + -1'P_14_9 + -1'P_14_10 + -1'P_14_11 + -1'P_14_12 + -1'P_14_13 + -1'P_14_14 + -1'P_14_15 + -1'P_15_6 + -1'P_15_7 + -1'P_15_8 + -1'P_15_9 + -1'P_15_10 + -1'P_15_11 + -1'P_15_12 + -1'P_15_13 + -1'P_15_14 + -1'P_16_7 + -1'P_16_8 + -1'P_16_9 + -1'P_16_10 + -1'P_16_11 + -1'P_16_12 + -1'P_16_13 + -1'P_17_8 + -1'P_17_9 + -1'P_17_10 + -1'P_17_11 + -1'P_17_12 + -1'P_18_9 + -1'P_18_10 + -1'P_18_11 + -1'P_19_10 + -1'cX_11 + -1'cX_12 + -1'cX_13 + -1'cX_14 + -1'cX_15 + -1'cX_16 + -1'cX_17 + -1'cX_18 + -1'cX_19 + L_29 + L_30 + L_31 + L_32 + L_33 + L_34 + L_35 + L_36 + L_37 + L_38 + R_31 + R_32 + R_33 + R_34 + R_35 + R_36 + R_37 + R_38 + R_39 = 10
invariant :P_1_12 + -1'P_3_11 + -1'P_3_12 + -1'P_3_13 + -1'P_4_10 + -2'P_4_11 + -2'P_4_12 + -2'P_4_13 + -1'P_4_14 + -1'P_5_9 + -2'P_5_10 + -3'P_5_11 + -3'P_5_12 + -3'P_5_13 + -2'P_5_14 + -1'P_5_15 + -1'P_6_8 + -2'P_6_9 + -3'P_6_10 + -4'P_6_11 + -4'P_6_12 + -4'P_6_13 + -3'P_6_14 + -2'P_6_15 + -1'P_6_16 + -1'P_7_7 + -2'P_7_8 + -3'P_7_9 + -4'P_7_10 + -5'P_7_11 + -5'P_7_12 + -5'P_7_13 + -4'P_7_14 + -3'P_7_15 + -2'P_7_16 + -1'P_7_17 + -1'P_8_6 + -2'P_8_7 + -3'P_8_8 + -4'P_8_9 + -5'P_8_10 + -6'P_8_11 + -6'P_8_12 + -6'P_8_13 + -5'P_8_14 + -4'P_8_15 + -3'P_8_16 + -2'P_8_17 + -1'P_8_18 + -1'P_9_5 + -2'P_9_6 + -3'P_9_7 + -4'P_9_8 + -5'P_9_9 + -6'P_9_10 + -7'P_9_11 + -7'P_9_12 + -7'P_9_13 + -6'P_9_14 + -5'P_9_15 + -4'P_9_16 + -3'P_9_17 + -2'P_9_18 + -1'P_10_4 + -2'P_10_5 + -3'P_10_6 + -4'P_10_7 + -5'P_10_8 + -6'P_10_9 + -7'P_10_10 + -8'P_10_11 + -8'P_10_12 + -8'P_10_13 + -7'P_10_14 + -6'P_10_15 + -5'P_10_16 + -4'P_10_17 + -2'P_10_18 + -1'P_11_3 + -2'P_11_4 + -3'P_11_5 + -4'P_11_6 + -5'P_11_7 + -6'P_11_8 + -7'P_11_9 + -8'P_11_10 + -9'P_11_11 + -9'P_11_12 + -9'P_11_13 + -8'P_11_14 + -7'P_11_15 + -6'P_11_16 + -4'P_11_17 + -2'P_11_18 + -1'P_12_2 + -2'P_12_3 + -3'P_12_4 + -4'P_12_5 + -5'P_12_6 + -6'P_12_7 + -7'P_12_8 + -8'P_12_9 + -9'P_12_10 + -10'P_12_11 + -10'P_12_12 + -10'P_12_13 + -9'P_12_14 + -8'P_12_15 + -6'P_12_16 + -4'P_12_17 + -2'P_12_18 + -1'P_13_2 + -2'P_13_3 + -3'P_13_4 + -4'P_13_5 + -5'P_13_6 + -6'P_13_7 + -7'P_13_8 + -8'P_13_9 + -9'P_13_10 + -10'P_13_11 + -10'P_13_12 + -10'P_13_13 + -9'P_13_14 + -7'P_13_15 + -5'P_13_16 + -3'P_13_17 + -1'P_13_18 + -1'P_14_3 + -2'P_14_4 + -3'P_14_5 + -4'P_14_6 + -5'P_14_7 + -6'P_14_8 + -7'P_14_9 + -8'P_14_10 + -9'P_14_11 + -9'P_14_12 + -9'P_14_13 + -7'P_14_14 + -5'P_14_15 + -3'P_14_16 + -1'P_14_17 + -1'P_15_4 + -2'P_15_5 + -3'P_15_6 + -4'P_15_7 + -5'P_15_8 + -6'P_15_9 + -7'P_15_10 + -8'P_15_11 + -8'P_15_12 + -7'P_15_13 + -5'P_15_14 + -3'P_15_15 + -1'P_15_16 + -1'P_16_5 + -2'P_16_6 + -3'P_16_7 + -4'P_16_8 + -5'P_16_9 + -6'P_16_10 + -7'P_16_11 + -6'P_16_12 + -5'P_16_13 + -3'P_16_14 + -1'P_16_15 + -1'P_17_6 + -2'P_17_7 + -3'P_17_8 + -4'P_17_9 + -5'P_17_10 + -5'P_17_11 + -4'P_17_12 + -3'P_17_13 + -1'P_17_14 + -1'P_18_7 + -2'P_18_8 + -3'P_18_9 + -3'P_18_10 + -3'P_18_11 + -2'P_18_12 + -1'P_18_13 + -1'P_19_8 + -1'P_19_9 + -1'P_19_10 + -1'P_19_11 + cX_13 + 3'cX_14 + 5'cX_15 + 7'cX_16 + 9'cX_17 + 11'cX_18 + 13'cX_19 + cY_12 + 2'cY_13 + 4'cY_14 + 6'cY_15 + 8'cY_16 + 10'cY_17 + 12'cY_18 + 14'cY_19 + -8'L_0 + -7'L_1 + -6'L_2 + -5'L_3 + -4'L_4 + -3'L_5 + -2'L_6 + -1'L_7 + -1'L_32 + -2'L_33 + -3'L_34 + -4'L_35 + -5'L_36 + -6'L_37 + -7'L_38 + -1'R_15 + -2'R_16 + -3'R_17 + -4'R_18 + -5'R_19 + -6'R_20 + -7'R_21 + -8'R_22 + -9'R_23 + -10'R_24 + -11'R_25 + -12'R_26 + -13'R_27 + -14'R_28 + -14'R_29 + -14'R_30 + -14'R_31 + -14'R_32 + -15'R_33 + -17'R_34 + -19'R_35 + -21'R_36 + -23'R_37 + -25'R_38 + -27'R_39 = -266
invariant :P_0_10 + P_3_10 + P_4_9 + P_4_10 + P_4_11 + P_5_8 + P_5_9 + 2'P_5_10 + P_5_11 + P_5_12 + P_6_7 + P_6_8 + 2'P_6_9 + 2'P_6_10 + 2'P_6_11 + P_6_12 + P_6_13 + P_7_6 + P_7_7 + 2'P_7_8 + 2'P_7_9 + 3'P_7_10 + 2'P_7_11 + 2'P_7_12 + P_7_13 + P_7_14 + P_8_5 + P_8_6 + 2'P_8_7 + 2'P_8_8 + 3'P_8_9 + 3'P_8_10 + 3'P_8_11 + 2'P_8_12 + 2'P_8_13 + P_8_14 + P_8_15 + P_9_4 + P_9_5 + 2'P_9_6 + 2'P_9_7 + 3'P_9_8 + 3'P_9_9 + 4'P_9_10 + 3'P_9_11 + 3'P_9_12 + 2'P_9_13 + 2'P_9_14 + P_9_15 + P_9_16 + P_10_3 + P_10_4 + 2'P_10_5 + 2'P_10_6 + 3'P_10_7 + 3'P_10_8 + 4'P_10_9 + 4'P_10_10 + 4'P_10_11 + 3'P_10_12 + 3'P_10_13 + 2'P_10_14 + 2'P_10_15 + P_10_16 + P_10_17 + P_11_2 + P_11_3 + 2'P_11_4 + 2'P_11_5 + 3'P_11_6 + 3'P_11_7 + 4'P_11_8 + 4'P_11_9 + 5'P_11_10 + 4'P_11_11 + 4'P_11_12 + 3'P_11_13 + 3'P_11_14 + 2'P_11_15 + 2'P_11_16 + P_11_17 + P_11_18 + P_12_3 + P_12_4 + 2'P_12_5 + 2'P_12_6 + 3'P_12_7 + 3'P_12_8 + 4'P_12_9 + 4'P_12_10 + 4'P_12_11 + 3'P_12_12 + 3'P_12_13 + 2'P_12_14 + 2'P_12_15 + P_12_16 + P_12_17 + P_13_4 + P_13_5 + 2'P_13_6 + 2'P_13_7 + 3'P_13_8 + 3'P_13_9 + 4'P_13_10 + 3'P_13_11 + 3'P_13_12 + 2'P_13_13 + 2'P_13_14 + P_13_15 + P_13_16 + P_14_5 + P_14_6 + 2'P_14_7 + 2'P_14_8 + 3'P_14_9 + 3'P_14_10 + 3'P_14_11 + 2'P_14_12 + 2'P_14_13 + P_14_14 + P_14_15 + P_15_6 + P_15_7 + 2'P_15_8 + 2'P_15_9 + 3'P_15_10 + 2'P_15_11 + 2'P_15_12 + P_15_13 + P_15_14 + P_16_7 + P_16_8 + 2'P_16_9 + 2'P_16_10 + 2'P_16_11 + P_16_12 + P_16_13 + P_17_8 + P_17_9 + 2'P_17_10 + P_17_11 + P_17_12 + P_18_9 + P_18_10 + P_18_11 + P_19_10 + -1'cX_12 + -2'cX_13 + -3'cX_14 + -4'cX_15 + -5'cX_16 + -6'cX_17 + -7'cX_18 + -8'cX_19 + -1'cY_11 + -2'cY_12 + -3'cY_13 + -4'cY_14 + -5'cY_15 + -6'cY_16 + -7'cY_17 + -8'cY_18 + -9'cY_19 + 5'L_0 + 5'L_1 + 4'L_2 + 4'L_3 + 3'L_4 + 3'L_5 + 2'L_6 + 2'L_7 + L_8 + L_9 + L_31 + L_32 + 2'L_33 + 2'L_34 + 3'L_35 + 3'L_36 + 4'L_37 + 4'L_38 + R_14 + R_15 + 2'R_16 + 2'R_17 + 3'R_18 + 3'R_19 + 4'R_20 + 4'R_21 + 5'R_22 + 5'R_23 + 6'R_24 + 6'R_25 + 7'R_26 + 7'R_27 + 8'R_28 + 8'R_29 + 9'R_30 + 9'R_31 + 10'R_32 + 11'R_33 + 12'R_34 + 13'R_35 + 14'R_36 + 15'R_37 + 16'R_38 + 17'R_39 = 167
invariant :P_1_13 + -1'P_3_12 + -1'P_3_13 + -1'P_3_14 + -1'P_4_11 + -2'P_4_12 + -2'P_4_13 + -2'P_4_14 + -1'P_4_15 + -1'P_5_10 + -2'P_5_11 + -3'P_5_12 + -3'P_5_13 + -3'P_5_14 + -2'P_5_15 + -1'P_5_16 + -1'P_6_9 + -2'P_6_10 + -3'P_6_11 + -4'P_6_12 + -4'P_6_13 + -4'P_6_14 + -3'P_6_15 + -2'P_6_16 + -1'P_6_17 + -1'P_7_8 + -2'P_7_9 + -3'P_7_10 + -4'P_7_11 + -5'P_7_12 + -5'P_7_13 + -5'P_7_14 + -4'P_7_15 + -3'P_7_16 + -2'P_7_17 + -1'P_7_18 + -1'P_8_7 + -2'P_8_8 + -3'P_8_9 + -4'P_8_10 + -5'P_8_11 + -6'P_8_12 + -6'P_8_13 + -6'P_8_14 + -5'P_8_15 + -4'P_8_16 + -3'P_8_17 + -2'P_8_18 + -1'P_9_6 + -2'P_9_7 + -3'P_9_8 + -4'P_9_9 + -5'P_9_10 + -6'P_9_11 + -7'P_9_12 + -7'P_9_13 + -7'P_9_14 + -6'P_9_15 + -5'P_9_16 + -4'P_9_17 + -2'P_9_18 + -1'P_10_5 + -2'P_10_6 + -3'P_10_7 + -4'P_10_8 + -5'P_10_9 + -6'P_10_10 + -7'P_10_11 + -8'P_10_12 + -8'P_10_13 + -8'P_10_14 + -7'P_10_15 + -6'P_10_16 + -4'P_10_17 + -2'P_10_18 + -1'P_11_4 + -2'P_11_5 + -3'P_11_6 + -4'P_11_7 + -5'P_11_8 + -6'P_11_9 + -7'P_11_10 + -8'P_11_11 + -9'P_11_12 + -9'P_11_13 + -9'P_11_14 + -8'P_11_15 + -6'P_11_16 + -4'P_11_17 + -2'P_11_18 + -1'P_12_3 + -2'P_12_4 + -3'P_12_5 + -4'P_12_6 + -5'P_12_7 + -6'P_12_8 + -7'P_12_9 + -8'P_12_10 + -9'P_12_11 + -10'P_12_12 + -10'P_12_13 + -10'P_12_14 + -8'P_12_15 + -6'P_12_16 + -4'P_12_17 + -2'P_12_18 + -1'P_13_2 + -2'P_13_3 + -3'P_13_4 + -4'P_13_5 + -5'P_13_6 + -6'P_13_7 + -7'P_13_8 + -8'P_13_9 + -9'P_13_10 + -10'P_13_11 + -11'P_13_12 + -11'P_13_13 + -10'P_13_14 + -8'P_13_15 + -6'P_13_16 + -4'P_13_17 + -2'P_13_18 + -1'P_14_2 + -2'P_14_3 + -3'P_14_4 + -4'P_14_5 + -5'P_14_6 + -6'P_14_7 + -7'P_14_8 + -8'P_14_9 + -9'P_14_10 + -10'P_14_11 + -11'P_14_12 + -10'P_14_13 + -9'P_14_14 + -7'P_14_15 + -5'P_14_16 + -3'P_14_17 + -1'P_14_18 + -1'P_15_3 + -2'P_15_4 + -3'P_15_5 + -4'P_15_6 + -5'P_15_7 + -6'P_15_8 + -7'P_15_9 + -8'P_15_10 + -9'P_15_11 + -9'P_15_12 + -8'P_15_13 + -7'P_15_14 + -5'P_15_15 + -3'P_15_16 + -1'P_15_17 + -1'P_16_4 + -2'P_16_5 + -3'P_16_6 + -4'P_16_7 + -5'P_16_8 + -6'P_16_9 + -7'P_16_10 + -7'P_16_11 + -7'P_16_12 + -6'P_16_13 + -5'P_16_14 + -3'P_16_15 + -1'P_16_16 + -1'P_17_5 + -2'P_17_6 + -3'P_17_7 + -4'P_17_8 + -5'P_17_9 + -5'P_17_10 + -5'P_17_11 + -5'P_17_12 + -4'P_17_13 + -3'P_17_14 + -1'P_17_15 + -1'P_18_6 + -2'P_18_7 + -3'P_18_8 + -3'P_18_9 + -3'P_18_10 + -3'P_18_11 + -3'P_18_12 + -2'P_18_13 + -1'P_18_14 + -1'P_19_7 + -1'P_19_8 + -1'P_19_9 + -1'P_19_10 + -1'P_19_11 + -1'P_19_12 + cX_14 + 3'cX_15 + 5'cX_16 + 7'cX_17 + 9'cX_18 + 11'cX_19 + cY_13 + 2'cY_14 + 4'cY_15 + 6'cY_16 + 8'cY_17 + 10'cY_18 + 12'cY_19 + -7'L_0 + -6'L_1 + -5'L_2 + -4'L_3 + -3'L_4 + -2'L_5 + -1'L_6 + -1'L_33 + -2'L_34 + -3'L_35 + -4'L_36 + -5'L_37 + -6'L_38 + -1'R_16 + -2'R_17 + -3'R_18 + -4'R_19 + -5'R_20 + -6'R_21 + -7'R_22 + -8'R_23 + -9'R_24 + -10'R_25 + -11'R_26 + -12'R_27 + -12'R_28 + -12'R_29 + -12'R_30 + -12'R_31 + -12'R_32 + -12'R_33 + -13'R_34 + -15'R_35 + -17'R_36 + -19'R_37 + -21'R_38 + -23'R_39 = -228
invariant :P_0_14 + P_3_14 + P_4_13 + P_4_14 + P_4_15 + P_5_12 + P_5_13 + 2'P_5_14 + P_5_15 + P_5_16 + P_6_11 + P_6_12 + 2'P_6_13 + 2'P_6_14 + 2'P_6_15 + P_6_16 + P_6_17 + P_7_10 + P_7_11 + 2'P_7_12 + 2'P_7_13 + 3'P_7_14 + 2'P_7_15 + 2'P_7_16 + P_7_17 + P_7_18 + P_8_9 + P_8_10 + 2'P_8_11 + 2'P_8_12 + 3'P_8_13 + 3'P_8_14 + 3'P_8_15 + 2'P_8_16 + 2'P_8_17 + P_8_18 + P_9_8 + P_9_9 + 2'P_9_10 + 2'P_9_11 + 3'P_9_12 + 3'P_9_13 + 4'P_9_14 + 3'P_9_15 + 3'P_9_16 + 2'P_9_17 + P_9_18 + P_10_7 + P_10_8 + 2'P_10_9 + 2'P_10_10 + 3'P_10_11 + 3'P_10_12 + 4'P_10_13 + 4'P_10_14 + 4'P_10_15 + 3'P_10_16 + 2'P_10_17 + P_10_18 + P_11_6 + P_11_7 + 2'P_11_8 + 2'P_11_9 + 3'P_11_10 + 3'P_11_11 + 4'P_11_12 + 4'P_11_13 + 5'P_11_14 + 4'P_11_15 + 3'P_11_16 + 2'P_11_17 + P_11_18 + P_12_5 + P_12_6 + 2'P_12_7 + 2'P_12_8 + 3'P_12_9 + 3'P_12_10 + 4'P_12_11 + 4'P_12_12 + 5'P_12_13 + 5'P_12_14 + 4'P_12_15 + 3'P_12_16 + 2'P_12_17 + P_12_18 + P_13_4 + P_13_5 + 2'P_13_6 + 2'P_13_7 + 3'P_13_8 + 3'P_13_9 + 4'P_13_10 + 4'P_13_11 + 5'P_13_12 + 5'P_13_13 + 5'P_13_14 + 4'P_13_15 + 3'P_13_16 + 2'P_13_17 + P_13_18 + P_14_3 + P_14_4 + 2'P_14_5 + 2'P_14_6 + 3'P_14_7 + 3'P_14_8 + 4'P_14_9 + 4'P_14_10 + 5'P_14_11 + 5'P_14_12 + 5'P_14_13 + 5'P_14_14 + 4'P_14_15 + 3'P_14_16 + 2'P_14_17 + P_14_18 + P_15_2 + P_15_3 + 2'P_15_4 + 2'P_15_5 + 3'P_15_6 + 3'P_15_7 + 4'P_15_8 + 4'P_15_9 + 5'P_15_10 + 5'P_15_11 + 5'P_15_12 + 5'P_15_13 + 5'P_15_14 + 4'P_15_15 + 3'P_15_16 + 2'P_15_17 + P_15_18 + P_16_3 + P_16_4 + 2'P_16_5 + 2'P_16_6 + 3'P_16_7 + 3'P_16_8 + 4'P_16_9 + 4'P_16_10 + 4'P_16_11 + 4'P_16_12 + 4'P_16_13 + 4'P_16_14 + 3'P_16_15 + 2'P_16_16 + P_16_17 + P_17_4 + P_17_5 + 2'P_17_6 + 2'P_17_7 + 3'P_17_8 + 3'P_17_9 + 3'P_17_10 + 3'P_17_11 + 3'P_17_12 + 3'P_17_13 + 3'P_17_14 + 2'P_17_15 + P_17_16 + P_18_5 + P_18_6 + 2'P_18_7 + 2'P_18_8 + 2'P_18_9 + 2'P_18_10 + 2'P_18_11 + 2'P_18_12 + 2'P_18_13 + 2'P_18_14 + P_18_15 + P_19_6 + P_19_7 + P_19_8 + P_19_9 + P_19_10 + P_19_11 + P_19_12 + P_19_13 + P_19_14 + -1'cX_16 + -2'cX_17 + -3'cX_18 + -4'cX_19 + -1'cY_15 + -2'cY_16 + -3'cY_17 + -4'cY_18 + -5'cY_19 + 3'L_0 + 3'L_1 + 2'L_2 + 2'L_3 + L_4 + L_5 + L_35 + L_36 + 2'L_37 + 2'L_38 + R_18 + R_19 + 2'R_20 + 2'R_21 + 3'R_22 + 3'R_23 + 4'R_24 + 4'R_25 + 5'R_26 + 5'R_27 + 5'R_28 + 5'R_29 + 5'R_30 + 5'R_31 + 5'R_32 + 5'R_33 + 5'R_34 + 5'R_35 + 6'R_36 + 7'R_37 + 8'R_38 + 9'R_39 = 93
invariant :P_2_0 + -1'P_3_2 + -1'P_3_3 + -1'P_3_4 + -1'P_3_5 + -1'P_3_6 + -1'P_3_7 + -1'P_3_8 + -1'P_3_9 + -1'P_3_10 + -1'P_3_11 + -1'P_3_12 + -1'P_3_13 + -1'P_3_14 + -1'P_3_15 + -1'P_3_16 + -1'P_3_17 + -1'P_3_18 + -1'P_4_3 + -1'P_4_4 + -1'P_4_5 + -1'P_4_6 + -1'P_4_7 + -1'P_4_8 + -1'P_4_9 + -1'P_4_10 + -1'P_4_11 + -1'P_4_12 + -1'P_4_13 + -1'P_4_14 + -1'P_4_15 + -1'P_4_16 + -1'P_4_17 + -1'P_5_4 + -1'P_5_5 + -1'P_5_6 + -1'P_5_7 + -1'P_5_8 + -1'P_5_9 + -1'P_5_10 + -1'P_5_11 + -1'P_5_12 + -1'P_5_13 + -1'P_5_14 + -1'P_5_15 + -1'P_5_16 + -1'P_6_5 + -1'P_6_6 + -1'P_6_7 + -1'P_6_8 + -1'P_6_9 + -1'P_6_10 + -1'P_6_11 + -1'P_6_12 + -1'P_6_13 + -1'P_6_14 + -1'P_6_15 + -1'P_7_6 + -1'P_7_7 + -1'P_7_8 + -1'P_7_9 + -1'P_7_10 + -1'P_7_11 + -1'P_7_12 + -1'P_7_13 + -1'P_7_14 + -1'P_8_7 + -1'P_8_8 + -1'P_8_9 + -1'P_8_10 + -1'P_8_11 + -1'P_8_12 + -1'P_8_13 + -1'P_9_8 + -1'P_9_9 + -1'P_9_10 + -1'P_9_11 + -1'P_9_12 + -1'P_10_9 + -1'P_10_10 + -1'P_10_11 + -1'P_11_10 + P_12_10 + P_13_9 + P_13_10 + P_13_11 + P_14_8 + P_14_9 + P_14_10 + P_14_11 + P_14_12 + P_15_7 + P_15_8 + P_15_9 + P_15_10 + P_15_11 + P_15_12 + P_15_13 + P_16_6 + P_16_7 + P_16_8 + P_16_9 + P_16_10 + P_16_11 + P_16_12 + P_16_13 + P_16_14 + P_17_5 + P_17_6 + P_17_7 + P_17_8 + P_17_9 + P_17_10 + P_17_11 + P_17_12 + P_17_13 + P_17_14 + P_17_15 + P_18_4 + P_18_5 + P_18_6 + P_18_7 + P_18_8 + P_18_9 + P_18_10 + P_18_11 + P_18_12 + P_18_13 + P_18_14 + P_18_15 + P_18_16 + P_19_3 + P_19_4 + P_19_5 + P_19_6 + P_19_7 + P_19_8 + P_19_9 + P_19_10 + P_19_11 + P_19_12 + P_19_13 + P_19_14 + P_19_15 + P_19_16 + P_19_17 + -1'cX_3 + -1'cX_4 + -1'cX_5 + -1'cX_6 + -1'cX_7 + -1'cX_8 + -1'cX_9 + -1'cX_10 + -1'cX_11 + -1'cX_12 + -1'cX_13 + -1'cX_14 + -1'cX_15 + -1'cX_16 + -1'cX_17 + -1'cX_18 + -1'cX_19 + L_21 + L_22 + L_23 + L_24 + L_25 + L_26 + L_27 + L_28 + L_29 + L_30 + L_31 + L_32 + L_33 + L_34 + L_35 + L_36 + L_37 + L_38 + R_23 + R_24 + R_25 + R_26 + R_27 + R_28 + R_29 + R_30 + R_31 + R_32 + R_33 + R_34 + R_35 + R_36 + R_37 + R_38 + R_39 = 18
invariant :P_1_2 + P_3_4 + P_3_5 + P_3_6 + P_3_7 + P_3_8 + P_3_9 + P_3_10 + P_3_11 + P_3_12 + P_3_13 + P_3_14 + P_3_15 + P_3_16 + P_3_17 + P_3_18 + P_4_2 + P_4_3 + 2'P_4_4 + 3'P_4_5 + 3'P_4_6 + 3'P_4_7 + 3'P_4_8 + 3'P_4_9 + 3'P_4_10 + 3'P_4_11 + 3'P_4_12 + 3'P_4_13 + 3'P_4_14 + 3'P_4_15 + 3'P_4_16 + 3'P_4_17 + 2'P_4_18 + P_5_2 + 2'P_5_3 + 3'P_5_4 + 4'P_5_5 + 5'P_5_6 + 5'P_5_7 + 5'P_5_8 + 5'P_5_9 + 5'P_5_10 + 5'P_5_11 + 5'P_5_12 + 5'P_5_13 + 5'P_5_14 + 5'P_5_15 + 5'P_5_16 + 4'P_5_17 + 2'P_5_18 + P_6_2 + 2'P_6_3 + 4'P_6_4 + 5'P_6_5 + 6'P_6_6 + 7'P_6_7 + 7'P_6_8 + 7'P_6_9 + 7'P_6_10 + 7'P_6_11 + 7'P_6_12 + 7'P_6_13 + 7'P_6_14 + 7'P_6_15 + 6'P_6_16 + 4'P_6_17 + 2'P_6_18 + P_7_2 + 2'P_7_3 + 4'P_7_4 + 6'P_7_5 + 7'P_7_6 + 8'P_7_7 + 9'P_7_8 + 9'P_7_9 + 9'P_7_10 + 9'P_7_11 + 9'P_7_12 + 9'P_7_13 + 9'P_7_14 + 8'P_7_15 + 6'P_7_16 + 4'P_7_17 + 2'P_7_18 + P_8_2 + 2'P_8_3 + 4'P_8_4 + 6'P_8_5 + 8'P_8_6 + 9'P_8_7 + 10'P_8_8 + 11'P_8_9 + 11'P_8_10 + 11'P_8_11 + 11'P_8_12 + 11'P_8_13 + 10'P_8_14 + 8'P_8_15 + 6'P_8_16 + 4'P_8_17 + 2'P_8_18 + P_9_2 + 2'P_9_3 + 4'P_9_4 + 6'P_9_5 + 8'P_9_6 + 10'P_9_7 + 11'P_9_8 + 12'P_9_9 + 13'P_9_10 + 13'P_9_11 + 13'P_9_12 + 12'P_9_13 + 10'P_9_14 + 8'P_9_15 + 6'P_9_16 + 4'P_9_17 + 2'P_9_18 + P_10_2 + 2'P_10_3 + 4'P_10_4 + 6'P_10_5 + 8'P_10_6 + 10'P_10_7 + 12'P_10_8 + 13'P_10_9 + 14'P_10_10 + 15'P_10_11 + 14'P_10_12 + 12'P_10_13 + 10'P_10_14 + 8'P_10_15 + 6'P_10_16 + 4'P_10_17 + 2'P_10_18 + P_11_2 + 2'P_11_3 + 4'P_11_4 + 6'P_11_5 + 8'P_11_6 + 10'P_11_7 + 12'P_11_8 + 14'P_11_9 + 15'P_11_10 + 15'P_11_11 + 14'P_11_12 + 12'P_11_13 + 10'P_11_14 + 8'P_11_15 + 6'P_11_16 + 4'P_11_17 + 2'P_11_18 + P_12_2 + 2'P_12_3 + 4'P_12_4 + 6'P_12_5 + 8'P_12_6 + 10'P_12_7 + 12'P_12_8 + 14'P_12_9 + 15'P_12_10 + 14'P_12_11 + 13'P_12_12 + 12'P_12_13 + 10'P_12_14 + 8'P_12_15 + 6'P_12_16 + 4'P_12_17 + 2'P_12_18 + P_13_2 + 2'P_13_3 + 4'P_13_4 + 6'P_13_5 + 8'P_13_6 + 10'P_13_7 + 12'P_13_8 + 13'P_13_9 + 13'P_13_10 + 13'P_13_11 + 12'P_13_12 + 11'P_13_13 + 10'P_13_14 + 8'P_13_15 + 6'P_13_16 + 4'P_13_17 + 2'P_13_18 + P_14_2 + 2'P_14_3 + 4'P_14_4 + 6'P_14_5 + 8'P_14_6 + 10'P_14_7 + 11'P_14_8 + 11'P_14_9 + 11'P_14_10 + 11'P_14_11 + 11'P_14_12 + 10'P_14_13 + 9'P_14_14 + 8'P_14_15 + 6'P_14_16 + 4'P_14_17 + 2'P_14_18 + P_15_2 + 2'P_15_3 + 4'P_15_4 + 6'P_15_5 + 8'P_15_6 + 9'P_15_7 + 9'P_15_8 + 9'P_15_9 + 9'P_15_10 + 9'P_15_11 + 9'P_15_12 + 9'P_15_13 + 8'P_15_14 + 7'P_15_15 + 6'P_15_16 + 4'P_15_17 + 2'P_15_18 + P_16_2 + 2'P_16_3 + 4'P_16_4 + 6'P_16_5 + 7'P_16_6 + 7'P_16_7 + 7'P_16_8 + 7'P_16_9 + 7'P_16_10 + 7'P_16_11 + 7'P_16_12 + 7'P_16_13 + 7'P_16_14 + 6'P_16_15 + 5'P_16_16 + 4'P_16_17 + 2'P_16_18 + P_17_2 + 2'P_17_3 + 4'P_17_4 + 5'P_17_5 + 5'P_17_6 + 5'P_17_7 + 5'P_17_8 + 5'P_17_9 + 5'P_17_10 + 5'P_17_11 + 5'P_17_12 + 5'P_17_13 + 5'P_17_14 + 5'P_17_15 + 4'P_17_16 + 3'P_17_17 + 2'P_17_18 + P_18_2 + 2'P_18_3 + 3'P_18_4 + 3'P_18_5 + 3'P_18_6 + 3'P_18_7 + 3'P_18_8 + 3'P_18_9 + 3'P_18_10 + 3'P_18_11 + 3'P_18_12 + 3'P_18_13 + 3'P_18_14 + 3'P_18_15 + 3'P_18_16 + 2'P_18_17 + P_18_18 + P_19_2 + P_19_3 + P_19_4 + P_19_5 + P_19_6 + P_19_7 + P_19_8 + P_19_9 + P_19_10 + P_19_11 + P_19_12 + P_19_13 + P_19_14 + P_19_15 + P_19_16 + P_19_17 + cX_3 + 3'cX_4 + 5'cX_5 + 7'cX_6 + 9'cX_7 + 11'cX_8 + 13'cX_9 + 15'cX_10 + 17'cX_11 + 19'cX_12 + 21'cX_13 + 23'cX_14 + 25'cX_15 + 27'cX_16 + 29'cX_17 + 31'cX_18 + 33'cX_19 + cY_2 + 2'cY_3 + 4'cY_4 + 6'cY_5 + 8'cY_6 + 10'cY_7 + 12'cY_8 + 14'cY_9 + 16'cY_10 + 18'cY_11 + 20'cY_12 + 22'cY_13 + 24'cY_14 + 26'cY_15 + 28'cY_16 + 30'cY_17 + 32'cY_18 + 34'cY_19 + -18'L_0 + -17'L_1 + -16'L_2 + -15'L_3 + -14'L_4 + -13'L_5 + -12'L_6 + -11'L_7 + -10'L_8 + -9'L_9 + -8'L_10 + -7'L_11 + -6'L_12 + -5'L_13 + -4'L_14 + -3'L_15 + -2'L_16 + -1'L_17 + -1'L_22 + -2'L_23 + -3'L_24 + -4'L_25 + -5'L_26 + -6'L_27 + -7'L_28 + -8'L_29 + -9'L_30 + -10'L_31 + -11'L_32 + -12'L_33 + -13'L_34 + -14'L_35 + -15'L_36 + -16'L_37 + -17'L_38 + -1'R_5 + -2'R_6 + -3'R_7 + -4'R_8 + -5'R_9 + -6'R_10 + -7'R_11 + -8'R_12 + -9'R_13 + -10'R_14 + -11'R_15 + -12'R_16 + -13'R_17 + -14'R_18 + -15'R_19 + -16'R_20 + -17'R_21 + -18'R_22 + -20'R_23 + -23'R_24 + -26'R_25 + -29'R_26 + -32'R_27 + -35'R_28 + -38'R_29 + -41'R_30 + -44'R_31 + -47'R_32 + -50'R_33 + -53'R_34 + -56'R_35 + -59'R_36 + -62'R_37 + -65'R_38 + -67'R_39 = -646
invariant :P_4_0 + -1'P_5_2 + -1'P_5_3 + -1'P_5_4 + -1'P_5_5 + -1'P_5_6 + -1'P_5_7 + -1'P_5_8 + -1'P_5_9 + -1'P_5_10 + -1'P_5_11 + -1'P_5_12 + -1'P_5_13 + -1'P_5_14 + -1'P_5_15 + -1'P_5_16 + -1'P_5_17 + -1'P_5_18 + -1'P_6_3 + -1'P_6_4 + -1'P_6_5 + -1'P_6_6 + -1'P_6_7 + -1'P_6_8 + -1'P_6_9 + -1'P_6_10 + -1'P_6_11 + -1'P_6_12 + -1'P_6_13 + -1'P_6_14 + -1'P_6_15 + -1'P_6_16 + -1'P_6_17 + -1'P_7_4 + -1'P_7_5 + -1'P_7_6 + -1'P_7_7 + -1'P_7_8 + -1'P_7_9 + -1'P_7_10 + -1'P_7_11 + -1'P_7_12 + -1'P_7_13 + -1'P_7_14 + -1'P_7_15 + -1'P_7_16 + -1'P_8_5 + -1'P_8_6 + -1'P_8_7 + -1'P_8_8 + -1'P_8_9 + -1'P_8_10 + -1'P_8_11 + -1'P_8_12 + -1'P_8_13 + -1'P_8_14 + -1'P_8_15 + -1'P_9_6 + -1'P_9_7 + -1'P_9_8 + -1'P_9_9 + -1'P_9_10 + -1'P_9_11 + -1'P_9_12 + -1'P_9_13 + -1'P_9_14 + -1'P_10_7 + -1'P_10_8 + -1'P_10_9 + -1'P_10_10 + -1'P_10_11 + -1'P_10_12 + -1'P_10_13 + -1'P_11_8 + -1'P_11_9 + -1'P_11_10 + -1'P_11_11 + -1'P_11_12 + -1'P_12_9 + -1'P_12_10 + -1'P_12_11 + -1'P_13_10 + P_14_10 + P_15_9 + P_15_10 + P_15_11 + P_16_8 + P_16_9 + P_16_10 + P_16_11 + P_16_12 + P_17_7 + P_17_8 + P_17_9 + P_17_10 + P_17_11 + P_17_12 + P_17_13 + P_18_6 + P_18_7 + P_18_8 + P_18_9 + P_18_10 + P_18_11 + P_18_12 + P_18_13 + P_18_14 + P_19_5 + P_19_6 + P_19_7 + P_19_8 + P_19_9 + P_19_10 + P_19_11 + P_19_12 + P_19_13 + P_19_14 + P_19_15 + -1'cX_5 + -1'cX_6 + -1'cX_7 + -1'cX_8 + -1'cX_9 + -1'cX_10 + -1'cX_11 + -1'cX_12 + -1'cX_13 + -1'cX_14 + -1'cX_15 + -1'cX_16 + -1'cX_17 + -1'cX_18 + -1'cX_19 + L_23 + L_24 + L_25 + L_26 + L_27 + L_28 + L_29 + L_30 + L_31 + L_32 + L_33 + L_34 + L_35 + L_36 + L_37 + L_38 + R_25 + R_26 + R_27 + R_28 + R_29 + R_30 + R_31 + R_32 + R_33 + R_34 + R_35 + R_36 + R_37 + R_38 + R_39 = 16
invariant :P_8_1 + P_8_2 + P_8_3 + P_8_4 + P_8_5 + P_8_6 + P_8_7 + P_8_8 + P_8_9 + P_8_10 + P_8_11 + P_8_12 + P_8_13 + P_8_14 + P_8_15 + P_8_16 + P_8_17 + P_8_18 + P_9_2 + P_9_3 + P_9_4 + P_9_5 + P_9_6 + P_9_7 + P_9_8 + P_9_9 + P_9_10 + P_9_11 + P_9_12 + P_9_13 + P_9_14 + P_9_15 + P_9_16 + P_9_17 + P_10_3 + P_10_4 + P_10_5 + P_10_6 + P_10_7 + P_10_8 + P_10_9 + P_10_10 + P_10_11 + P_10_12 + P_10_13 + P_10_14 + P_10_15 + P_10_16 + P_11_4 + P_11_5 + P_11_6 + P_11_7 + P_11_8 + P_11_9 + P_11_10 + P_11_11 + P_11_12 + P_11_13 + P_11_14 + P_11_15 + P_12_5 + P_12_6 + P_12_7 + P_12_8 + P_12_9 + P_12_10 + P_12_11 + P_12_12 + P_12_13 + P_12_14 + P_13_6 + P_13_7 + P_13_8 + P_13_9 + P_13_10 + P_13_11 + P_13_12 + P_13_13 + P_14_7 + P_14_8 + P_14_9 + P_14_10 + P_14_11 + P_14_12 + P_15_8 + P_15_9 + P_15_10 + P_15_11 + P_16_9 + P_16_10 + -1'P_18_9 + -1'P_18_10 + -1'P_19_8 + -1'P_19_9 + -1'P_19_10 + -1'P_19_11 + cX_8 + cX_9 + cX_10 + cX_11 + cX_12 + cX_13 + cX_14 + cX_15 + cX_16 + cX_17 + cX_18 + cX_19 + -1'L_27 + -1'L_28 + -1'L_29 + -1'L_30 + -1'L_31 + -1'L_32 + -1'L_33 + -1'L_34 + -1'L_35 + -1'L_36 + -1'L_37 + -1'L_38 + -1'R_28 + -1'R_29 + -1'R_30 + -1'R_31 + -1'R_32 + -1'R_33 + -1'R_34 + -1'R_35 + -1'R_36 + -1'R_37 + -1'R_38 + -1'R_39 = -12
invariant :P_2_7 + P_3_6 + P_3_7 + P_3_8 + P_4_5 + P_4_6 + 2'P_4_7 + P_4_8 + P_4_9 + P_5_4 + P_5_5 + 2'P_5_6 + 2'P_5_7 + 2'P_5_8 + P_5_9 + P_5_10 + P_6_3 + P_6_4 + 2'P_6_5 + 2'P_6_6 + 3'P_6_7 + 2'P_6_8 + 2'P_6_9 + P_6_10 + P_6_11 + P_7_2 + P_7_3 + 2'P_7_4 + 2'P_7_5 + 3'P_7_6 + 3'P_7_7 + 3'P_7_8 + 2'P_7_9 + 2'P_7_10 + P_7_11 + P_7_12 + P_8_3 + P_8_4 + 2'P_8_5 + 2'P_8_6 + 3'P_8_7 + 2'P_8_8 + 2'P_8_9 + P_8_10 + P_8_11 + -1'P_8_14 + -1'P_8_15 + -1'P_8_16 + -1'P_8_17 + -1'P_8_18 + P_9_4 + P_9_5 + 2'P_9_6 + 2'P_9_7 + 2'P_9_8 + P_9_9 + P_9_10 + -1'P_9_13 + -1'P_9_14 + -2'P_9_15 + -2'P_9_16 + -2'P_9_17 + -1'P_9_18 + P_10_5 + P_10_6 + 2'P_10_7 + P_10_8 + P_10_9 + -1'P_10_12 + -1'P_10_13 + -2'P_10_14 + -2'P_10_15 + -3'P_10_16 + -2'P_10_17 + -1'P_10_18 + P_11_6 + P_11_7 + P_11_8 + -1'P_11_11 + -1'P_11_12 + -2'P_11_13 + -2'P_11_14 + -3'P_11_15 + -2'P_11_16 + -2'P_11_17 + -1'P_11_18 + P_12_7 + -1'P_12_10 + -1'P_12_11 + -2'P_12_12 + -2'P_12_13 + -3'P_12_14 + -2'P_12_15 + -2'P_12_16 + -1'P_12_17 + -1'P_12_18 + -1'P_13_9 + -1'P_13_10 + -2'P_13_11 + -2'P_13_12 + -3'P_13_13 + -2'P_13_14 + -2'P_13_15 + -1'P_13_16 + -1'P_13_17 + -1'P_14_8 + -1'P_14_9 + -2'P_14_10 + -2'P_14_11 + -3'P_14_12 + -2'P_14_13 + -2'P_14_14 + -1'P_14_15 + -1'P_14_16 + -1'P_15_8 + -2'P_15_9 + -2'P_15_10 + -3'P_15_11 + -2'P_15_12 + -2'P_15_13 + -1'P_15_14 + -1'P_15_15 + -1'P_16_8 + -2'P_16_9 + -3'P_16_10 + -2'P_16_11 + -2'P_16_12 + -1'P_16_13 + -1'P_16_14 + -1'P_17_8 + -2'P_17_9 + -2'P_17_10 + -2'P_17_11 + -1'P_17_12 + -1'P_17_13 + -1'P_18_8 + -1'P_18_9 + -1'P_18_10 + -1'P_18_11 + -1'P_18_12 + -1'cX_8 + -2'cX_9 + -3'cX_10 + -4'cX_11 + -5'cX_12 + -6'cX_13 + -7'cX_14 + -8'cX_15 + -9'cX_16 + -10'cX_17 + -11'cX_18 + -12'cX_19 + -1'cY_8 + -2'cY_9 + -3'cY_10 + -4'cY_11 + -5'cY_12 + -6'cY_13 + -7'cY_14 + -8'cY_15 + -9'cY_16 + -10'cY_17 + -11'cY_18 + -12'cY_19 + 6'L_0 + 6'L_1 + 5'L_2 + 5'L_3 + 4'L_4 + 4'L_5 + 3'L_6 + 3'L_7 + 2'L_8 + 2'L_9 + L_10 + L_11 + L_27 + L_28 + 2'L_29 + 2'L_30 + 3'L_31 + 3'L_32 + 4'L_33 + 4'L_34 + 5'L_35 + 5'L_36 + 6'L_37 + 6'L_38 + R_10 + R_11 + 2'R_12 + 2'R_13 + 3'R_14 + 3'R_15 + 4'R_16 + 4'R_17 + 5'R_18 + 5'R_19 + 6'R_20 + 6'R_21 + 7'R_22 + 7'R_23 + 8'R_24 + 8'R_25 + 9'R_26 + 9'R_27 + 11'R_28 + 12'R_29 + 14'R_30 + 15'R_31 + 17'R_32 + 18'R_33 + 19'R_34 + 20'R_35 + 21'R_36 + 22'R_37 + 23'R_38 + 24'R_39 = 234
invariant :P_18_19 + P_19_18 + R_38 = 1
invariant :P_18_0 + -1'P_19_2 + -1'P_19_3 + -1'P_19_4 + -1'P_19_5 + -1'P_19_6 + -1'P_19_7 + -1'P_19_8 + -1'P_19_9 + -1'P_19_10 + -1'P_19_11 + -1'P_19_12 + -1'P_19_13 + -1'P_19_14 + -1'P_19_15 + -1'P_19_16 + -1'P_19_17 + -1'P_19_18 + -1'cX_19 + L_37 + L_38 + R_39 = 2
invariant :P_4_1 + P_4_2 + P_4_3 + P_4_4 + P_4_5 + P_4_6 + P_4_7 + P_4_8 + P_4_9 + P_4_10 + P_4_11 + P_4_12 + P_4_13 + P_4_14 + P_4_15 + P_4_16 + P_4_17 + P_4_18 + P_5_2 + P_5_3 + P_5_4 + P_5_5 + P_5_6 + P_5_7 + P_5_8 + P_5_9 + P_5_10 + P_5_11 + P_5_12 + P_5_13 + P_5_14 + P_5_15 + P_5_16 + P_5_17 + P_6_3 + P_6_4 + P_6_5 + P_6_6 + P_6_7 + P_6_8 + P_6_9 + P_6_10 + P_6_11 + P_6_12 + P_6_13 + P_6_14 + P_6_15 + P_6_16 + P_7_4 + P_7_5 + P_7_6 + P_7_7 + P_7_8 + P_7_9 + P_7_10 + P_7_11 + P_7_12 + P_7_13 + P_7_14 + P_7_15 + P_8_5 + P_8_6 + P_8_7 + P_8_8 + P_8_9 + P_8_10 + P_8_11 + P_8_12 + P_8_13 + P_8_14 + P_9_6 + P_9_7 + P_9_8 + P_9_9 + P_9_10 + P_9_11 + P_9_12 + P_9_13 + P_10_7 + P_10_8 + P_10_9 + P_10_10 + P_10_11 + P_10_12 + P_11_8 + P_11_9 + P_11_10 + P_11_11 + P_12_9 + P_12_10 + -1'P_14_9 + -1'P_14_10 + -1'P_15_8 + -1'P_15_9 + -1'P_15_10 + -1'P_15_11 + -1'P_16_7 + -1'P_16_8 + -1'P_16_9 + -1'P_16_10 + -1'P_16_11 + -1'P_16_12 + -1'P_17_6 + -1'P_17_7 + -1'P_17_8 + -1'P_17_9 + -1'P_17_10 + -1'P_17_11 + -1'P_17_12 + -1'P_17_13 + -1'P_18_5 + -1'P_18_6 + -1'P_18_7 + -1'P_18_8 + -1'P_18_9 + -1'P_18_10 + -1'P_18_11 + -1'P_18_12 + -1'P_18_13 + -1'P_18_14 + -1'P_19_4 + -1'P_19_5 + -1'P_19_6 + -1'P_19_7 + -1'P_19_8 + -1'P_19_9 + -1'P_19_10 + -1'P_19_11 + -1'P_19_12 + -1'P_19_13 + -1'P_19_14 + -1'P_19_15 + cX_4 + cX_5 + cX_6 + cX_7 + cX_8 + cX_9 + cX_10 + cX_11 + cX_12 + cX_13 + cX_14 + cX_15 + cX_16 + cX_17 + cX_18 + cX_19 + -1'L_23 + -1'L_24 + -1'L_25 + -1'L_26 + -1'L_27 + -1'L_28 + -1'L_29 + -1'L_30 + -1'L_31 + -1'L_32 + -1'L_33 + -1'L_34 + -1'L_35 + -1'L_36 + -1'L_37 + -1'L_38 + -1'R_24 + -1'R_25 + -1'R_26 + -1'R_27 + -1'R_28 + -1'R_29 + -1'R_30 + -1'R_31 + -1'R_32 + -1'R_33 + -1'R_34 + -1'R_35 + -1'R_36 + -1'R_37 + -1'R_38 + -1'R_39 = -16
invariant :P_0_2 + P_3_2 + -1'P_4_4 + -1'P_4_5 + -1'P_4_6 + -1'P_4_7 + -1'P_4_8 + -1'P_4_9 + -1'P_4_10 + -1'P_4_11 + -1'P_4_12 + -1'P_4_13 + -1'P_4_14 + -1'P_4_15 + -1'P_4_16 + -1'P_4_17 + -1'P_4_18 + -1'P_5_3 + -1'P_5_4 + -2'P_5_5 + -2'P_5_6 + -2'P_5_7 + -2'P_5_8 + -2'P_5_9 + -2'P_5_10 + -2'P_5_11 + -2'P_5_12 + -2'P_5_13 + -2'P_5_14 + -2'P_5_15 + -2'P_5_16 + -2'P_5_17 + -1'P_5_18 + -1'P_6_3 + -2'P_6_4 + -2'P_6_5 + -3'P_6_6 + -3'P_6_7 + -3'P_6_8 + -3'P_6_9 + -3'P_6_10 + -3'P_6_11 + -3'P_6_12 + -3'P_6_13 + -3'P_6_14 + -3'P_6_15 + -3'P_6_16 + -2'P_6_17 + -1'P_6_18 + -1'P_7_3 + -2'P_7_4 + -3'P_7_5 + -3'P_7_6 + -4'P_7_7 + -4'P_7_8 + -4'P_7_9 + -4'P_7_10 + -4'P_7_11 + -4'P_7_12 + -4'P_7_13 + -4'P_7_14 + -4'P_7_15 + -3'P_7_16 + -2'P_7_17 + -1'P_7_18 + -1'P_8_3 + -2'P_8_4 + -3'P_8_5 + -4'P_8_6 + -4'P_8_7 + -5'P_8_8 + -5'P_8_9 + -5'P_8_10 + -5'P_8_11 + -5'P_8_12 + -5'P_8_13 + -5'P_8_14 + -4'P_8_15 + -3'P_8_16 + -2'P_8_17 + -1'P_8_18 + -1'P_9_3 + -2'P_9_4 + -3'P_9_5 + -4'P_9_6 + -5'P_9_7 + -5'P_9_8 + -6'P_9_9 + -6'P_9_10 + -6'P_9_11 + -6'P_9_12 + -6'P_9_13 + -5'P_9_14 + -4'P_9_15 + -3'P_9_16 + -2'P_9_17 + -1'P_9_18 + -1'P_10_3 + -2'P_10_4 + -3'P_10_5 + -4'P_10_6 + -5'P_10_7 + -6'P_10_8 + -6'P_10_9 + -7'P_10_10 + -7'P_10_11 + -7'P_10_12 + -6'P_10_13 + -5'P_10_14 + -4'P_10_15 + -3'P_10_16 + -2'P_10_17 + -1'P_10_18 + -1'P_11_3 + -2'P_11_4 + -3'P_11_5 + -4'P_11_6 + -5'P_11_7 + -6'P_11_8 + -7'P_11_9 + -7'P_11_10 + -8'P_11_11 + -7'P_11_12 + -6'P_11_13 + -5'P_11_14 + -4'P_11_15 + -3'P_11_16 + -2'P_11_17 + -1'P_11_18 + -1'P_12_3 + -2'P_12_4 + -3'P_12_5 + -4'P_12_6 + -5'P_12_7 + -6'P_12_8 + -7'P_12_9 + -8'P_12_10 + -7'P_12_11 + -7'P_12_12 + -6'P_12_13 + -5'P_12_14 + -4'P_12_15 + -3'P_12_16 + -2'P_12_17 + -1'P_12_18 + -1'P_13_3 + -2'P_13_4 + -3'P_13_5 + -4'P_13_6 + -5'P_13_7 + -6'P_13_8 + -7'P_13_9 + -7'P_13_10 + -7'P_13_11 + -6'P_13_12 + -6'P_13_13 + -5'P_13_14 + -4'P_13_15 + -3'P_13_16 + -2'P_13_17 + -1'P_13_18 + -1'P_14_3 + -2'P_14_4 + -3'P_14_5 + -4'P_14_6 + -5'P_14_7 + -6'P_14_8 + -6'P_14_9 + -6'P_14_10 + -6'P_14_11 + -6'P_14_12 + -5'P_14_13 + -5'P_14_14 + -4'P_14_15 + -3'P_14_16 + -2'P_14_17 + -1'P_14_18 + -1'P_15_3 + -2'P_15_4 + -3'P_15_5 + -4'P_15_6 + -5'P_15_7 + -5'P_15_8 + -5'P_15_9 + -5'P_15_10 + -5'P_15_11 + -5'P_15_12 + -5'P_15_13 + -4'P_15_14 + -4'P_15_15 + -3'P_15_16 + -2'P_15_17 + -1'P_15_18 + -1'P_16_3 + -2'P_16_4 + -3'P_16_5 + -4'P_16_6 + -4'P_16_7 + -4'P_16_8 + -4'P_16_9 + -4'P_16_10 + -4'P_16_11 + -4'P_16_12 + -4'P_16_13 + -4'P_16_14 + -3'P_16_15 + -3'P_16_16 + -2'P_16_17 + -1'P_16_18 + -1'P_17_3 + -2'P_17_4 + -3'P_17_5 + -3'P_17_6 + -3'P_17_7 + -3'P_17_8 + -3'P_17_9 + -3'P_17_10 + -3'P_17_11 + -3'P_17_12 + -3'P_17_13 + -3'P_17_14 + -3'P_17_15 + -2'P_17_16 + -2'P_17_17 + -1'P_17_18 + -1'P_18_3 + -2'P_18_4 + -2'P_18_5 + -2'P_18_6 + -2'P_18_7 + -2'P_18_8 + -2'P_18_9 + -2'P_18_10 + -2'P_18_11 + -2'P_18_12 + -2'P_18_13 + -2'P_18_14 + -2'P_18_15 + -2'P_18_16 + -1'P_18_17 + -1'P_18_18 + -1'P_19_3 + -1'P_19_4 + -1'P_19_5 + -1'P_19_6 + -1'P_19_7 + -1'P_19_8 + -1'P_19_9 + -1'P_19_10 + -1'P_19_11 + -1'P_19_12 + -1'P_19_13 + -1'P_19_14 + -1'P_19_15 + -1'P_19_16 + -1'P_19_17 + -1'cX_4 + -2'cX_5 + -3'cX_6 + -4'cX_7 + -5'cX_8 + -6'cX_9 + -7'cX_10 + -8'cX_11 + -9'cX_12 + -10'cX_13 + -11'cX_14 + -12'cX_15 + -13'cX_16 + -14'cX_17 + -15'cX_18 + -16'cX_19 + -1'cY_3 + -2'cY_4 + -3'cY_5 + -4'cY_6 + -5'cY_7 + -6'cY_8 + -7'cY_9 + -8'cY_10 + -9'cY_11 + -10'cY_12 + -11'cY_13 + -12'cY_14 + -13'cY_15 + -14'cY_16 + -15'cY_17 + -16'cY_18 + -17'cY_19 + 9'L_0 + 9'L_1 + 8'L_2 + 8'L_3 + 7'L_4 + 7'L_5 + 6'L_6 + 6'L_7 + 5'L_8 + 5'L_9 + 4'L_10 + 4'L_11 + 3'L_12 + 3'L_13 + 2'L_14 + 2'L_15 + L_16 + L_17 + L_23 + L_24 + 2'L_25 + 2'L_26 + 3'L_27 + 3'L_28 + 4'L_29 + 4'L_30 + 5'L_31 + 5'L_32 + 6'L_33 + 6'L_34 + 7'L_35 + 7'L_36 + 8'L_37 + 8'L_38 + R_6 + R_7 + 2'R_8 + 2'R_9 + 3'R_10 + 3'R_11 + 4'R_12 + 4'R_13 + 5'R_14 + 5'R_15 + 6'R_16 + 6'R_17 + 7'R_18 + 7'R_19 + 8'R_20 + 8'R_21 + 9'R_22 + 9'R_23 + 11'R_24 + 12'R_25 + 14'R_26 + 15'R_27 + 17'R_28 + 18'R_29 + 20'R_30 + 21'R_31 + 23'R_32 + 24'R_33 + 26'R_34 + 27'R_35 + 29'R_36 + 30'R_37 + 32'R_38 + 33'R_39 = 315
invariant :P_12_1 + P_12_2 + P_12_3 + P_12_4 + P_12_5 + P_12_6 + P_12_7 + P_12_8 + P_12_9 + P_12_10 + P_12_11 + P_12_12 + P_12_13 + P_12_14 + P_12_15 + P_12_16 + P_12_17 + P_12_18 + P_13_2 + P_13_3 + P_13_4 + P_13_5 + P_13_6 + P_13_7 + P_13_8 + P_13_9 + P_13_10 + P_13_11 + P_13_12 + P_13_13 + P_13_14 + P_13_15 + P_13_16 + P_13_17 + P_14_3 + P_14_4 + P_14_5 + P_14_6 + P_14_7 + P_14_8 + P_14_9 + P_14_10 + P_14_11 + P_14_12 + P_14_13 + P_14_14 + P_14_15 + P_14_16 + P_15_4 + P_15_5 + P_15_6 + P_15_7 + P_15_8 + P_15_9 + P_15_10 + P_15_11 + P_15_12 + P_15_13 + P_15_14 + P_15_15 + P_16_5 + P_16_6 + P_16_7 + P_16_8 + P_16_9 + P_16_10 + P_16_11 + P_16_12 + P_16_13 + P_16_14 + P_17_6 + P_17_7 + P_17_8 + P_17_9 + P_17_10 + P_17_11 + P_17_12 + P_17_13 + P_18_7 + P_18_8 + P_18_9 + P_18_10 + P_18_11 + P_18_12 + P_19_8 + P_19_9 + P_19_10 + P_19_11 + cX_12 + cX_13 + cX_14 + cX_15 + cX_16 + cX_17 + cX_18 + cX_19 + -1'L_31 + -1'L_32 + -1'L_33 + -1'L_34 + -1'L_35 + -1'L_36 + -1'L_37 + -1'L_38 + -1'R_32 + -1'R_33 + -1'R_34 + -1'R_35 + -1'R_36 + -1'R_37 + -1'R_38 + -1'R_39 = -8
invariant :P_18_1 + P_18_2 + P_18_3 + P_18_4 + P_18_5 + P_18_6 + P_18_7 + P_18_8 + P_18_9 + P_18_10 + P_18_11 + P_18_12 + P_18_13 + P_18_14 + P_18_15 + P_18_16 + P_18_17 + P_18_18 + P_19_2 + P_19_3 + P_19_4 + P_19_5 + P_19_6 + P_19_7 + P_19_8 + P_19_9 + P_19_10 + P_19_11 + P_19_12 + P_19_13 + P_19_14 + P_19_15 + P_19_16 + P_19_17 + cX_18 + cX_19 + -1'L_37 + -1'L_38 + -1'R_38 + -1'R_39 = -2
invariant :P_1_11 + -1'P_3_10 + -1'P_3_11 + -1'P_3_12 + -1'P_4_9 + -2'P_4_10 + -2'P_4_11 + -2'P_4_12 + -1'P_4_13 + -1'P_5_8 + -2'P_5_9 + -3'P_5_10 + -3'P_5_11 + -3'P_5_12 + -2'P_5_13 + -1'P_5_14 + -1'P_6_7 + -2'P_6_8 + -3'P_6_9 + -4'P_6_10 + -4'P_6_11 + -4'P_6_12 + -3'P_6_13 + -2'P_6_14 + -1'P_6_15 + -1'P_7_6 + -2'P_7_7 + -3'P_7_8 + -4'P_7_9 + -5'P_7_10 + -5'P_7_11 + -5'P_7_12 + -4'P_7_13 + -3'P_7_14 + -2'P_7_15 + -1'P_7_16 + -1'P_8_5 + -2'P_8_6 + -3'P_8_7 + -4'P_8_8 + -5'P_8_9 + -6'P_8_10 + -6'P_8_11 + -6'P_8_12 + -5'P_8_13 + -4'P_8_14 + -3'P_8_15 + -2'P_8_16 + -1'P_8_17 + -1'P_9_4 + -2'P_9_5 + -3'P_9_6 + -4'P_9_7 + -5'P_9_8 + -6'P_9_9 + -7'P_9_10 + -7'P_9_11 + -7'P_9_12 + -6'P_9_13 + -5'P_9_14 + -4'P_9_15 + -3'P_9_16 + -2'P_9_17 + -1'P_9_18 + -1'P_10_3 + -2'P_10_4 + -3'P_10_5 + -4'P_10_6 + -5'P_10_7 + -6'P_10_8 + -7'P_10_9 + -8'P_10_10 + -8'P_10_11 + -8'P_10_12 + -7'P_10_13 + -6'P_10_14 + -5'P_10_15 + -4'P_10_16 + -3'P_10_17 + -2'P_10_18 + -1'P_11_2 + -2'P_11_3 + -3'P_11_4 + -4'P_11_5 + -5'P_11_6 + -6'P_11_7 + -7'P_11_8 + -8'P_11_9 + -9'P_11_10 + -9'P_11_11 + -9'P_11_12 + -8'P_11_13 + -7'P_11_14 + -6'P_11_15 + -5'P_11_16 + -4'P_11_17 + -2'P_11_18 + -1'P_12_2 + -2'P_12_3 + -3'P_12_4 + -4'P_12_5 + -5'P_12_6 + -6'P_12_7 + -7'P_12_8 + -8'P_12_9 + -9'P_12_10 + -9'P_12_11 + -9'P_12_12 + -8'P_12_13 + -7'P_12_14 + -6'P_12_15 + -5'P_12_16 + -3'P_12_17 + -1'P_12_18 + -1'P_13_3 + -2'P_13_4 + -3'P_13_5 + -4'P_13_6 + -5'P_13_7 + -6'P_13_8 + -7'P_13_9 + -8'P_13_10 + -8'P_13_11 + -8'P_13_12 + -7'P_13_13 + -6'P_13_14 + -5'P_13_15 + -3'P_13_16 + -1'P_13_17 + -1'P_14_4 + -2'P_14_5 + -3'P_14_6 + -4'P_14_7 + -5'P_14_8 + -6'P_14_9 + -7'P_14_10 + -7'P_14_11 + -7'P_14_12 + -6'P_14_13 + -5'P_14_14 + -3'P_14_15 + -1'P_14_16 + -1'P_15_5 + -2'P_15_6 + -3'P_15_7 + -4'P_15_8 + -5'P_15_9 + -6'P_15_10 + -6'P_15_11 + -6'P_15_12 + -5'P_15_13 + -3'P_15_14 + -1'P_15_15 + -1'P_16_6 + -2'P_16_7 + -3'P_16_8 + -4'P_16_9 + -5'P_16_10 + -5'P_16_11 + -5'P_16_12 + -3'P_16_13 + -1'P_16_14 + -1'P_17_7 + -2'P_17_8 + -3'P_17_9 + -4'P_17_10 + -4'P_17_11 + -3'P_17_12 + -1'P_17_13 + -1'P_18_8 + -2'P_18_9 + -3'P_18_10 + -2'P_18_11 + -1'P_18_12 + -1'P_19_9 + -1'P_19_10 + cX_12 + 3'cX_13 + 5'cX_14 + 7'cX_15 + 9'cX_16 + 11'cX_17 + 13'cX_18 + 15'cX_19 + cY_11 + 2'cY_12 + 4'cY_13 + 6'cY_14 + 8'cY_15 + 10'cY_16 + 12'cY_17 + 14'cY_18 + 16'cY_19 + -9'L_0 + -8'L_1 + -7'L_2 + -6'L_3 + -5'L_4 + -4'L_5 + -3'L_6 + -2'L_7 + -1'L_8 + -1'L_31 + -2'L_32 + -3'L_33 + -4'L_34 + -5'L_35 + -6'L_36 + -7'L_37 + -8'L_38 + -1'R_14 + -2'R_15 + -3'R_16 + -4'R_17 + -5'R_18 + -6'R_19 + -7'R_20 + -8'R_21 + -9'R_22 + -10'R_23 + -11'R_24 + -12'R_25 + -13'R_26 + -14'R_27 + -15'R_28 + -16'R_29 + -16'R_30 + -16'R_31 + -17'R_32 + -19'R_33 + -21'R_34 + -23'R_35 + -25'R_36 + -27'R_37 + -29'R_38 + -31'R_39 = -304
invariant :P_19_1 + P_19_2 + P_19_3 + P_19_4 + P_19_5 + P_19_6 + P_19_7 + P_19_8 + P_19_9 + P_19_10 + P_19_11 + P_19_12 + P_19_13 + P_19_14 + P_19_15 + P_19_16 + P_19_17 + P_19_18 + cX_19 + -1'L_38 + -1'R_39 = -1
invariant :P_0_18 + P_3_18 + P_4_17 + P_4_18 + P_5_16 + P_5_17 + P_5_18 + P_6_15 + P_6_16 + P_6_17 + P_6_18 + P_7_14 + P_7_15 + P_7_16 + P_7_17 + P_7_18 + P_8_13 + P_8_14 + P_8_15 + P_8_16 + P_8_17 + P_8_18 + P_9_12 + P_9_13 + P_9_14 + P_9_15 + P_9_16 + P_9_17 + P_9_18 + P_10_11 + P_10_12 + P_10_13 + P_10_14 + P_10_15 + P_10_16 + P_10_17 + P_10_18 + P_11_10 + P_11_11 + P_11_12 + P_11_13 + P_11_14 + P_11_15 + P_11_16 + P_11_17 + P_11_18 + P_12_9 + P_12_10 + P_12_11 + P_12_12 + P_12_13 + P_12_14 + P_12_15 + P_12_16 + P_12_17 + P_12_18 + P_13_8 + P_13_9 + P_13_10 + P_13_11 + P_13_12 + P_13_13 + P_13_14 + P_13_15 + P_13_16 + P_13_17 + P_13_18 + P_14_7 + P_14_8 + P_14_9 + P_14_10 + P_14_11 + P_14_12 + P_14_13 + P_14_14 + P_14_15 + P_14_16 + P_14_17 + P_14_18 + P_15_6 + P_15_7 + P_15_8 + P_15_9 + P_15_10 + P_15_11 + P_15_12 + P_15_13 + P_15_14 + P_15_15 + P_15_16 + P_15_17 + P_15_18 + P_16_5 + P_16_6 + P_16_7 + P_16_8 + P_16_9 + P_16_10 + P_16_11 + P_16_12 + P_16_13 + P_16_14 + P_16_15 + P_16_16 + P_16_17 + P_16_18 + P_17_4 + P_17_5 + P_17_6 + P_17_7 + P_17_8 + P_17_9 + P_17_10 + P_17_11 + P_17_12 + P_17_13 + P_17_14 + P_17_15 + P_17_16 + P_17_17 + P_17_18 + P_18_3 + P_18_4 + P_18_5 + P_18_6 + P_18_7 + P_18_8 + P_18_9 + P_18_10 + P_18_11 + P_18_12 + P_18_13 + P_18_14 + P_18_15 + P_18_16 + P_18_17 + P_18_18 + P_19_2 + P_19_3 + P_19_4 + P_19_5 + P_19_6 + P_19_7 + P_19_8 + P_19_9 + P_19_10 + P_19_11 + P_19_12 + P_19_13 + P_19_14 + P_19_15 + P_19_16 + P_19_17 + P_19_18 + -1'cY_19 + L_0 + L_1 + R_22 + R_23 + R_24 + R_25 + R_26 + R_27 + R_28 + R_29 + R_30 + R_31 + R_32 + R_33 + R_34 + R_35 + R_36 + R_37 + R_38 + R_39 = 19
invariant :P_1_4 + -1'P_3_3 + -1'P_3_4 + -1'P_3_5 + -1'P_4_2 + -2'P_4_3 + -2'P_4_4 + -2'P_4_5 + -1'P_4_6 + -1'P_5_2 + -2'P_5_3 + -2'P_5_4 + -2'P_5_5 + -1'P_5_6 + P_5_8 + P_5_9 + P_5_10 + P_5_11 + P_5_12 + P_5_13 + P_5_14 + P_5_15 + P_5_16 + P_5_17 + P_5_18 + -1'P_6_3 + -1'P_6_4 + -1'P_6_5 + P_6_7 + 2'P_6_8 + 3'P_6_9 + 3'P_6_10 + 3'P_6_11 + 3'P_6_12 + 3'P_6_13 + 3'P_6_14 + 3'P_6_15 + 3'P_6_16 + 3'P_6_17 + 2'P_6_18 + P_7_6 + 2'P_7_7 + 3'P_7_8 + 4'P_7_9 + 5'P_7_10 + 5'P_7_11 + 5'P_7_12 + 5'P_7_13 + 5'P_7_14 + 5'P_7_15 + 5'P_7_16 + 4'P_7_17 + 2'P_7_18 + P_8_4 + P_8_5 + 2'P_8_6 + 3'P_8_7 + 4'P_8_8 + 5'P_8_9 + 6'P_8_10 + 7'P_8_11 + 7'P_8_12 + 7'P_8_13 + 7'P_8_14 + 7'P_8_15 + 6'P_8_16 + 4'P_8_17 + 2'P_8_18 + P_9_4 + 2'P_9_5 + 3'P_9_6 + 4'P_9_7 + 5'P_9_8 + 6'P_9_9 + 7'P_9_10 + 8'P_9_11 + 9'P_9_12 + 9'P_9_13 + 9'P_9_14 + 8'P_9_15 + 6'P_9_16 + 4'P_9_17 + 2'P_9_18 + P_10_4 + 2'P_10_5 + 4'P_10_6 + 5'P_10_7 + 6'P_10_8 + 7'P_10_9 + 8'P_10_10 + 9'P_10_11 + 10'P_10_12 + 11'P_10_13 + 10'P_10_14 + 8'P_10_15 + 6'P_10_16 + 4'P_10_17 + 2'P_10_18 + P_11_4 + 2'P_11_5 + 4'P_11_6 + 6'P_11_7 + 7'P_11_8 + 8'P_11_9 + 9'P_11_10 + 10'P_11_11 + 11'P_11_12 + 11'P_11_13 + 10'P_11_14 + 8'P_11_15 + 6'P_11_16 + 4'P_11_17 + 2'P_11_18 + P_12_4 + 2'P_12_5 + 4'P_12_6 + 6'P_12_7 + 8'P_12_8 + 9'P_12_9 + 10'P_12_10 + 11'P_12_11 + 11'P_12_12 + 10'P_12_13 + 9'P_12_14 + 8'P_12_15 + 6'P_12_16 + 4'P_12_17 + 2'P_12_18 + P_13_4 + 2'P_13_5 + 4'P_13_6 + 6'P_13_7 + 8'P_13_8 + 10'P_13_9 + 11'P_13_10 + 11'P_13_11 + 10'P_13_12 + 9'P_13_13 + 8'P_13_14 + 7'P_13_15 + 6'P_13_16 + 4'P_13_17 + 2'P_13_18 + P_14_4 + 2'P_14_5 + 4'P_14_6 + 6'P_14_7 + 8'P_14_8 + 10'P_14_9 + 11'P_14_10 + 10'P_14_11 + 9'P_14_12 + 8'P_14_13 + 7'P_14_14 + 6'P_14_15 + 5'P_14_16 + 4'P_14_17 + 2'P_14_18 + P_15_4 + 2'P_15_5 + 4'P_15_6 + 6'P_15_7 + 8'P_15_8 + 9'P_15_9 + 9'P_15_10 + 9'P_15_11 + 8'P_15_12 + 7'P_15_13 + 6'P_15_14 + 5'P_15_15 + 4'P_15_16 + 3'P_15_17 + 2'P_15_18 + P_16_4 + 2'P_16_5 + 4'P_16_6 + 6'P_16_7 + 7'P_16_8 + 7'P_16_9 + 7'P_16_10 + 7'P_16_11 + 7'P_16_12 + 6'P_16_13 + 5'P_16_14 + 4'P_16_15 + 3'P_16_16 + 2'P_16_17 + P_16_18 + P_17_4 + 2'P_17_5 + 4'P_17_6 + 5'P_17_7 + 5'P_17_8 + 5'P_17_9 + 5'P_17_10 + 5'P_17_11 + 5'P_17_12 + 5'P_17_13 + 4'P_17_14 + 3'P_17_15 + 2'P_17_16 + P_17_17 + P_18_4 + 2'P_18_5 + 3'P_18_6 + 3'P_18_7 + 3'P_18_8 + 3'P_18_9 + 3'P_18_10 + 3'P_18_11 + 3'P_18_12 + 3'P_18_13 + 3'P_18_14 + 2'P_18_15 + P_18_16 + P_19_4 + P_19_5 + P_19_6 + P_19_7 + P_19_8 + P_19_9 + P_19_10 + P_19_11 + P_19_12 + P_19_13 + P_19_14 + P_19_15 + cX_5 + 3'cX_6 + 5'cX_7 + 7'cX_8 + 9'cX_9 + 11'cX_10 + 13'cX_11 + 15'cX_12 + 17'cX_13 + 19'cX_14 + 21'cX_15 + 23'cX_16 + 25'cX_17 + 27'cX_18 + 29'cX_19 + cY_4 + 2'cY_5 + 4'cY_6 + 6'cY_7 + 8'cY_8 + 10'cY_9 + 12'cY_10 + 14'cY_11 + 16'cY_12 + 18'cY_13 + 20'cY_14 + 22'cY_15 + 24'cY_16 + 26'cY_17 + 28'cY_18 + 30'cY_19 + -16'L_0 + -15'L_1 + -14'L_2 + -13'L_3 + -12'L_4 + -11'L_5 + -10'L_6 + -9'L_7 + -8'L_8 + -7'L_9 + -6'L_10 + -5'L_11 + -4'L_12 + -3'L_13 + -2'L_14 + -1'L_15 + -1'L_24 + -2'L_25 + -3'L_26 + -4'L_27 + -5'L_28 + -6'L_29 + -7'L_30 + -8'L_31 + -9'L_32 + -10'L_33 + -11'L_34 + -12'L_35 + -13'L_36 + -14'L_37 + -15'L_38 + -1'R_7 + -2'R_8 + -3'R_9 + -4'R_10 + -5'R_11 + -6'R_12 + -7'R_13 + -8'R_14 + -9'R_15 + -10'R_16 + -11'R_17 + -12'R_18 + -13'R_19 + -14'R_20 + -15'R_21 + -16'R_22 + -17'R_23 + -18'R_24 + -20'R_25 + -23'R_26 + -26'R_27 + -29'R_28 + -32'R_29 + -35'R_30 + -38'R_31 + -41'R_32 + -44'R_33 + -47'R_34 + -50'R_35 + -53'R_36 + -55'R_37 + -57'R_38 + -59'R_39 = -570
invariant :P_1_6 + -1'P_3_5 + -1'P_3_6 + -1'P_3_7 + -1'P_4_4 + -2'P_4_5 + -2'P_4_6 + -2'P_4_7 + -1'P_4_8 + -1'P_5_3 + -2'P_5_4 + -3'P_5_5 + -3'P_5_6 + -3'P_5_7 + -2'P_5_8 + -1'P_5_9 + -1'P_6_2 + -2'P_6_3 + -3'P_6_4 + -4'P_6_5 + -4'P_6_6 + -4'P_6_7 + -3'P_6_8 + -2'P_6_9 + -1'P_6_10 + -1'P_7_2 + -2'P_7_3 + -3'P_7_4 + -4'P_7_5 + -4'P_7_6 + -4'P_7_7 + -3'P_7_8 + -2'P_7_9 + -1'P_7_10 + P_7_12 + P_7_13 + P_7_14 + P_7_15 + P_7_16 + P_7_17 + P_7_18 + -1'P_8_3 + -2'P_8_4 + -3'P_8_5 + -3'P_8_6 + -3'P_8_7 + -2'P_8_8 + -1'P_8_9 + P_8_11 + 2'P_8_12 + 3'P_8_13 + 3'P_8_14 + 3'P_8_15 + 3'P_8_16 + 3'P_8_17 + 2'P_8_18 + -1'P_9_4 + -2'P_9_5 + -2'P_9_6 + -2'P_9_7 + -1'P_9_8 + P_9_10 + 2'P_9_11 + 3'P_9_12 + 4'P_9_13 + 5'P_9_14 + 5'P_9_15 + 5'P_9_16 + 4'P_9_17 + 2'P_9_18 + -1'P_10_5 + -1'P_10_6 + -1'P_10_7 + P_10_9 + 2'P_10_10 + 3'P_10_11 + 4'P_10_12 + 5'P_10_13 + 6'P_10_14 + 7'P_10_15 + 6'P_10_16 + 4'P_10_17 + 2'P_10_18 + P_11_8 + 2'P_11_9 + 3'P_11_10 + 4'P_11_11 + 5'P_11_12 + 6'P_11_13 + 7'P_11_14 + 7'P_11_15 + 6'P_11_16 + 4'P_11_17 + 2'P_11_18 + P_12_6 + P_12_7 + 2'P_12_8 + 3'P_12_9 + 4'P_12_10 + 5'P_12_11 + 6'P_12_12 + 7'P_12_13 + 7'P_12_14 + 6'P_12_15 + 5'P_12_16 + 4'P_12_17 + 2'P_12_18 + P_13_6 + 2'P_13_7 + 3'P_13_8 + 4'P_13_9 + 5'P_13_10 + 6'P_13_11 + 7'P_13_12 + 7'P_13_13 + 6'P_13_14 + 5'P_13_15 + 4'P_13_16 + 3'P_13_17 + 2'P_13_18 + P_14_6 + 2'P_14_7 + 4'P_14_8 + 5'P_14_9 + 6'P_14_10 + 7'P_14_11 + 7'P_14_12 + 6'P_14_13 + 5'P_14_14 + 4'P_14_15 + 3'P_14_16 + 2'P_14_17 + P_14_18 + P_15_6 + 2'P_15_7 + 4'P_15_8 + 6'P_15_9 + 7'P_15_10 + 7'P_15_11 + 6'P_15_12 + 5'P_15_13 + 4'P_15_14 + 3'P_15_15 + 2'P_15_16 + P_15_17 + P_16_6 + 2'P_16_7 + 4'P_16_8 + 6'P_16_9 + 7'P_16_10 + 6'P_16_11 + 5'P_16_12 + 4'P_16_13 + 3'P_16_14 + 2'P_16_15 + P_16_16 + P_17_6 + 2'P_17_7 + 4'P_17_8 + 5'P_17_9 + 5'P_17_10 + 5'P_17_11 + 4'P_17_12 + 3'P_17_13 + 2'P_17_14 + P_17_15 + P_18_6 + 2'P_18_7 + 3'P_18_8 + 3'P_18_9 + 3'P_18_10 + 3'P_18_11 + 3'P_18_12 + 2'P_18_13 + P_18_14 + P_19_6 + P_19_7 + P_19_8 + P_19_9 + P_19_10 + P_19_11 + P_19_12 + P_19_13 + cX_7 + 3'cX_8 + 5'cX_9 + 7'cX_10 + 9'cX_11 + 11'cX_12 + 13'cX_13 + 15'cX_14 + 17'cX_15 + 19'cX_16 + 21'cX_17 + 23'cX_18 + 25'cX_19 + cY_6 + 2'cY_7 + 4'cY_8 + 6'cY_9 + 8'cY_10 + 10'cY_11 + 12'cY_12 + 14'cY_13 + 16'cY_14 + 18'cY_15 + 20'cY_16 + 22'cY_17 + 24'cY_18 + 26'cY_19 + -14'L_0 + -13'L_1 + -12'L_2 + -11'L_3 + -10'L_4 + -9'L_5 + -8'L_6 + -7'L_7 + -6'L_8 + -5'L_9 + -4'L_10 + -3'L_11 + -2'L_12 + -1'L_13 + -1'L_26 + -2'L_27 + -3'L_28 + -4'L_29 + -5'L_30 + -6'L_31 + -7'L_32 + -8'L_33 + -9'L_34 + -10'L_35 + -11'L_36 + -12'L_37 + -13'L_38 + -1'R_9 + -2'R_10 + -3'R_11 + -4'R_12 + -5'R_13 + -6'R_14 + -7'R_15 + -8'R_16 + -9'R_17 + -10'R_18 + -11'R_19 + -12'R_20 + -13'R_21 + -14'R_22 + -15'R_23 + -16'R_24 + -17'R_25 + -18'R_26 + -20'R_27 + -23'R_28 + -26'R_29 + -29'R_30 + -32'R_31 + -35'R_32 + -38'R_33 + -41'R_34 + -43'R_35 + -45'R_36 + -47'R_37 + -49'R_38 + -51'R_39 = -494
invariant :P_7_19 + P_8_18 + P_9_17 + P_10_16 + P_11_15 + P_12_14 + P_13_13 + P_14_12 + P_15_11 + P_16_10 + P_17_9 + P_18_8 + P_19_7 + R_27 = 1
invariant :P_1_0 + P_3_2 + P_3_3 + P_3_4 + P_3_5 + P_3_6 + P_3_7 + P_3_8 + P_3_9 + P_3_10 + P_3_11 + P_3_12 + P_3_13 + P_3_14 + P_3_15 + P_3_16 + P_3_17 + P_3_18 + P_4_2 + 2'P_4_3 + 2'P_4_4 + 2'P_4_5 + 2'P_4_6 + 2'P_4_7 + 2'P_4_8 + 2'P_4_9 + 2'P_4_10 + 2'P_4_11 + 2'P_4_12 + 2'P_4_13 + 2'P_4_14 + 2'P_4_15 + 2'P_4_16 + 2'P_4_17 + P_4_18 + P_5_2 + 2'P_5_3 + 3'P_5_4 + 3'P_5_5 + 3'P_5_6 + 3'P_5_7 + 3'P_5_8 + 3'P_5_9 + 3'P_5_10 + 3'P_5_11 + 3'P_5_12 + 3'P_5_13 + 3'P_5_14 + 3'P_5_15 + 3'P_5_16 + 2'P_5_17 + P_5_18 + P_6_2 + 2'P_6_3 + 3'P_6_4 + 4'P_6_5 + 4'P_6_6 + 4'P_6_7 + 4'P_6_8 + 4'P_6_9 + 4'P_6_10 + 4'P_6_11 + 4'P_6_12 + 4'P_6_13 + 4'P_6_14 + 4'P_6_15 + 3'P_6_16 + 2'P_6_17 + P_6_18 + P_7_2 + 2'P_7_3 + 3'P_7_4 + 4'P_7_5 + 5'P_7_6 + 5'P_7_7 + 5'P_7_8 + 5'P_7_9 + 5'P_7_10 + 5'P_7_11 + 5'P_7_12 + 5'P_7_13 + 5'P_7_14 + 4'P_7_15 + 3'P_7_16 + 2'P_7_17 + P_7_18 + P_8_2 + 2'P_8_3 + 3'P_8_4 + 4'P_8_5 + 5'P_8_6 + 6'P_8_7 + 6'P_8_8 + 6'P_8_9 + 6'P_8_10 + 6'P_8_11 + 6'P_8_12 + 6'P_8_13 + 5'P_8_14 + 4'P_8_15 + 3'P_8_16 + 2'P_8_17 + P_8_18 + P_9_2 + 2'P_9_3 + 3'P_9_4 + 4'P_9_5 + 5'P_9_6 + 6'P_9_7 + 7'P_9_8 + 7'P_9_9 + 7'P_9_10 + 7'P_9_11 + 7'P_9_12 + 6'P_9_13 + 5'P_9_14 + 4'P_9_15 + 3'P_9_16 + 2'P_9_17 + P_9_18 + P_10_2 + 2'P_10_3 + 3'P_10_4 + 4'P_10_5 + 5'P_10_6 + 6'P_10_7 + 7'P_10_8 + 8'P_10_9 + 8'P_10_10 + 8'P_10_11 + 7'P_10_12 + 6'P_10_13 + 5'P_10_14 + 4'P_10_15 + 3'P_10_16 + 2'P_10_17 + P_10_18 + P_11_2 + 2'P_11_3 + 3'P_11_4 + 4'P_11_5 + 5'P_11_6 + 6'P_11_7 + 7'P_11_8 + 8'P_11_9 + 9'P_11_10 + 8'P_11_11 + 7'P_11_12 + 6'P_11_13 + 5'P_11_14 + 4'P_11_15 + 3'P_11_16 + 2'P_11_17 + P_11_18 + P_12_2 + 2'P_12_3 + 3'P_12_4 + 4'P_12_5 + 5'P_12_6 + 6'P_12_7 + 7'P_12_8 + 8'P_12_9 + 8'P_12_10 + 8'P_12_11 + 7'P_12_12 + 6'P_12_13 + 5'P_12_14 + 4'P_12_15 + 3'P_12_16 + 2'P_12_17 + P_12_18 + P_13_2 + 2'P_13_3 + 3'P_13_4 + 4'P_13_5 + 5'P_13_6 + 6'P_13_7 + 7'P_13_8 + 7'P_13_9 + 7'P_13_10 + 7'P_13_11 + 7'P_13_12 + 6'P_13_13 + 5'P_13_14 + 4'P_13_15 + 3'P_13_16 + 2'P_13_17 + P_13_18 + P_14_2 + 2'P_14_3 + 3'P_14_4 + 4'P_14_5 + 5'P_14_6 + 6'P_14_7 + 6'P_14_8 + 6'P_14_9 + 6'P_14_10 + 6'P_14_11 + 6'P_14_12 + 6'P_14_13 + 5'P_14_14 + 4'P_14_15 + 3'P_14_16 + 2'P_14_17 + P_14_18 + P_15_2 + 2'P_15_3 + 3'P_15_4 + 4'P_15_5 + 5'P_15_6 + 5'P_15_7 + 5'P_15_8 + 5'P_15_9 + 5'P_15_10 + 5'P_15_11 + 5'P_15_12 + 5'P_15_13 + 5'P_15_14 + 4'P_15_15 + 3'P_15_16 + 2'P_15_17 + P_15_18 + P_16_2 + 2'P_16_3 + 3'P_16_4 + 4'P_16_5 + 4'P_16_6 + 4'P_16_7 + 4'P_16_8 + 4'P_16_9 + 4'P_16_10 + 4'P_16_11 + 4'P_16_12 + 4'P_16_13 + 4'P_16_14 + 4'P_16_15 + 3'P_16_16 + 2'P_16_17 + P_16_18 + P_17_2 + 2'P_17_3 + 3'P_17_4 + 3'P_17_5 + 3'P_17_6 + 3'P_17_7 + 3'P_17_8 + 3'P_17_9 + 3'P_17_10 + 3'P_17_11 + 3'P_17_12 + 3'P_17_13 + 3'P_17_14 + 3'P_17_15 + 3'P_17_16 + 2'P_17_17 + P_17_18 + P_18_2 + 2'P_18_3 + 2'P_18_4 + 2'P_18_5 + 2'P_18_6 + 2'P_18_7 + 2'P_18_8 + 2'P_18_9 + 2'P_18_10 + 2'P_18_11 + 2'P_18_12 + 2'P_18_13 + 2'P_18_14 + 2'P_18_15 + 2'P_18_16 + 2'P_18_17 + P_18_18 + P_19_2 + P_19_3 + P_19_4 + P_19_5 + P_19_6 + P_19_7 + P_19_8 + P_19_9 + P_19_10 + P_19_11 + P_19_12 + P_19_13 + P_19_14 + P_19_15 + P_19_16 + P_19_17 + P_19_18 + cX_3 + 2'cX_4 + 3'cX_5 + 4'cX_6 + 5'cX_7 + 6'cX_8 + 7'cX_9 + 8'cX_10 + 9'cX_11 + 10'cX_12 + 11'cX_13 + 12'cX_14 + 13'cX_15 + 14'cX_16 + 15'cX_17 + 16'cX_18 + 17'cX_19 + cY_2 + 2'cY_3 + 3'cY_4 + 4'cY_5 + 5'cY_6 + 6'cY_7 + 7'cY_8 + 8'cY_9 + 9'cY_10 + 10'cY_11 + 11'cY_12 + 12'cY_13 + 13'cY_14 + 14'cY_15 + 15'cY_16 + 16'cY_17 + 17'cY_18 + 18'cY_19 + -9'L_0 + -9'L_1 + -8'L_2 + -8'L_3 + -7'L_4 + -7'L_5 + -6'L_6 + -6'L_7 + -5'L_8 + -5'L_9 + -4'L_10 + -4'L_11 + -3'L_12 + -3'L_13 + -2'L_14 + -2'L_15 + -1'L_16 + -1'L_17 + L_20 + -1'L_23 + -1'L_24 + -2'L_25 + -2'L_26 + -3'L_27 + -3'L_28 + -4'L_29 + -4'L_30 + -5'L_31 + -5'L_32 + -6'L_33 + -6'L_34 + -7'L_35 + -7'L_36 + -8'L_37 + -8'L_38 + -1'R_4 + -1'R_5 + -2'R_6 + -2'R_7 + -3'R_8 + -3'R_9 + -4'R_10 + -4'R_11 + -5'R_12 + -5'R_13 + -6'R_14 + -6'R_15 + -7'R_16 + -7'R_17 + -8'R_18 + -8'R_19 + -9'R_20 + -9'R_21 + -10'R_22 + -11'R_23 + -13'R_24 + -14'R_25 + -16'R_26 + -17'R_27 + -19'R_28 + -20'R_29 + -22'R_30 + -23'R_31 + -25'R_32 + -26'R_33 + -28'R_34 + -29'R_35 + -31'R_36 + -32'R_37 + -34'R_38 + -35'R_39 = -332
invariant :P_10_1 + P_10_2 + P_10_3 + P_10_4 + P_10_5 + P_10_6 + P_10_7 + P_10_8 + P_10_9 + P_10_10 + P_10_11 + P_10_12 + P_10_13 + P_10_14 + P_10_15 + P_10_16 + P_10_17 + P_10_18 + P_11_2 + P_11_3 + P_11_4 + P_11_5 + P_11_6 + P_11_7 + P_11_8 + P_11_9 + P_11_10 + P_11_11 + P_11_12 + P_11_13 + P_11_14 + P_11_15 + P_11_16 + P_11_17 + P_12_3 + P_12_4 + P_12_5 + P_12_6 + P_12_7 + P_12_8 + P_12_9 + P_12_10 + P_12_11 + P_12_12 + P_12_13 + P_12_14 + P_12_15 + P_12_16 + P_13_4 + P_13_5 + P_13_6 + P_13_7 + P_13_8 + P_13_9 + P_13_10 + P_13_11 + P_13_12 + P_13_13 + P_13_14 + P_13_15 + P_14_5 + P_14_6 + P_14_7 + P_14_8 + P_14_9 + P_14_10 + P_14_11 + P_14_12 + P_14_13 + P_14_14 + P_15_6 + P_15_7 + P_15_8 + P_15_9 + P_15_10 + P_15_11 + P_15_12 + P_15_13 + P_16_7 + P_16_8 + P_16_9 + P_16_10 + P_16_11 + P_16_12 + P_17_8 + P_17_9 + P_17_10 + P_17_11 + P_18_9 + P_18_10 + cX_10 + cX_11 + cX_12 + cX_13 + cX_14 + cX_15 + cX_16 + cX_17 + cX_18 + cX_19 + -1'L_29 + -1'L_30 + -1'L_31 + -1'L_32 + -1'L_33 + -1'L_34 + -1'L_35 + -1'L_36 + -1'L_37 + -1'L_38 + -1'R_30 + -1'R_31 + -1'R_32 + -1'R_33 + -1'R_34 + -1'R_35 + -1'R_36 + -1'R_37 + -1'R_38 + -1'R_39 = -10
invariant :P_1_9 + -1'P_3_8 + -1'P_3_9 + -1'P_3_10 + -1'P_4_7 + -2'P_4_8 + -2'P_4_9 + -2'P_4_10 + -1'P_4_11 + -1'P_5_6 + -2'P_5_7 + -3'P_5_8 + -3'P_5_9 + -3'P_5_10 + -2'P_5_11 + -1'P_5_12 + -1'P_6_5 + -2'P_6_6 + -3'P_6_7 + -4'P_6_8 + -4'P_6_9 + -4'P_6_10 + -3'P_6_11 + -2'P_6_12 + -1'P_6_13 + -1'P_7_4 + -2'P_7_5 + -3'P_7_6 + -4'P_7_7 + -5'P_7_8 + -5'P_7_9 + -5'P_7_10 + -4'P_7_11 + -3'P_7_12 + -2'P_7_13 + -1'P_7_14 + -1'P_8_3 + -2'P_8_4 + -3'P_8_5 + -4'P_8_6 + -5'P_8_7 + -6'P_8_8 + -6'P_8_9 + -6'P_8_10 + -5'P_8_11 + -4'P_8_12 + -3'P_8_13 + -2'P_8_14 + -1'P_8_15 + -1'P_9_2 + -2'P_9_3 + -3'P_9_4 + -4'P_9_5 + -5'P_9_6 + -6'P_9_7 + -7'P_9_8 + -7'P_9_9 + -7'P_9_10 + -6'P_9_11 + -5'P_9_12 + -4'P_9_13 + -3'P_9_14 + -2'P_9_15 + -1'P_9_16 + -1'P_10_2 + -2'P_10_3 + -3'P_10_4 + -4'P_10_5 + -5'P_10_6 + -6'P_10_7 + -7'P_10_8 + -7'P_10_9 + -7'P_10_10 + -6'P_10_11 + -5'P_10_12 + -4'P_10_13 + -3'P_10_14 + -2'P_10_15 + -1'P_10_16 + P_10_18 + -1'P_11_3 + -2'P_11_4 + -3'P_11_5 + -4'P_11_6 + -5'P_11_7 + -6'P_11_8 + -6'P_11_9 + -6'P_11_10 + -5'P_11_11 + -4'P_11_12 + -3'P_11_13 + -2'P_11_14 + -1'P_11_15 + P_11_17 + P_11_18 + -1'P_12_4 + -2'P_12_5 + -3'P_12_6 + -4'P_12_7 + -5'P_12_8 + -5'P_12_9 + -5'P_12_10 + -4'P_12_11 + -3'P_12_12 + -2'P_12_13 + -1'P_12_14 + P_12_16 + P_12_17 + -1'P_13_5 + -2'P_13_6 + -3'P_13_7 + -4'P_13_8 + -4'P_13_9 + -4'P_13_10 + -3'P_13_11 + -2'P_13_12 + -1'P_13_13 + P_13_15 + P_13_16 + -1'P_14_6 + -2'P_14_7 + -3'P_14_8 + -3'P_14_9 + -3'P_14_10 + -2'P_14_11 + -1'P_14_12 + P_14_14 + P_14_15 + -1'P_15_7 + -2'P_15_8 + -2'P_15_9 + -2'P_15_10 + -1'P_15_11 + P_15_13 + P_15_14 + -1'P_16_8 + -1'P_16_9 + -1'P_16_10 + P_16_12 + P_16_13 + P_17_11 + P_17_12 + P_18_9 + P_18_10 + P_18_11 + P_19_9 + P_19_10 + cX_10 + 3'cX_11 + 5'cX_12 + 7'cX_13 + 9'cX_14 + 11'cX_15 + 13'cX_16 + 15'cX_17 + 17'cX_18 + 19'cX_19 + cY_9 + 2'cY_10 + 4'cY_11 + 6'cY_12 + 8'cY_13 + 10'cY_14 + 12'cY_15 + 14'cY_16 + 16'cY_17 + 18'cY_18 + 20'cY_19 + -11'L_0 + -10'L_1 + -9'L_2 + -8'L_3 + -7'L_4 + -6'L_5 + -5'L_6 + -4'L_7 + -3'L_8 + -2'L_9 + -1'L_10 + -1'L_29 + -2'L_30 + -3'L_31 + -4'L_32 + -5'L_33 + -6'L_34 + -7'L_35 + -8'L_36 + -9'L_37 + -10'L_38 + -1'R_12 + -2'R_13 + -3'R_14 + -4'R_15 + -5'R_16 + -6'R_17 + -7'R_18 + -8'R_19 + -9'R_20 + -10'R_21 + -11'R_22 + -12'R_23 + -13'R_24 + -14'R_25 + -15'R_26 + -16'R_27 + -17'R_28 + -18'R_29 + -20'R_30 + -23'R_31 + -25'R_32 + -27'R_33 + -29'R_34 + -31'R_35 + -33'R_36 + -35'R_37 + -37'R_38 + -39'R_39 = -380
invariant :P_1_8 + -1'P_3_7 + -1'P_3_8 + -1'P_3_9 + -1'P_4_6 + -2'P_4_7 + -2'P_4_8 + -2'P_4_9 + -1'P_4_10 + -1'P_5_5 + -2'P_5_6 + -3'P_5_7 + -3'P_5_8 + -3'P_5_9 + -2'P_5_10 + -1'P_5_11 + -1'P_6_4 + -2'P_6_5 + -3'P_6_6 + -4'P_6_7 + -4'P_6_8 + -4'P_6_9 + -3'P_6_10 + -2'P_6_11 + -1'P_6_12 + -1'P_7_3 + -2'P_7_4 + -3'P_7_5 + -4'P_7_6 + -5'P_7_7 + -5'P_7_8 + -5'P_7_9 + -4'P_7_10 + -3'P_7_11 + -2'P_7_12 + -1'P_7_13 + -1'P_8_2 + -2'P_8_3 + -3'P_8_4 + -4'P_8_5 + -5'P_8_6 + -6'P_8_7 + -6'P_8_8 + -6'P_8_9 + -5'P_8_10 + -4'P_8_11 + -3'P_8_12 + -2'P_8_13 + -1'P_8_14 + -1'P_9_2 + -2'P_9_3 + -3'P_9_4 + -4'P_9_5 + -5'P_9_6 + -6'P_9_7 + -6'P_9_8 + -6'P_9_9 + -5'P_9_10 + -4'P_9_11 + -3'P_9_12 + -2'P_9_13 + -1'P_9_14 + P_9_16 + P_9_17 + P_9_18 + -1'P_10_3 + -2'P_10_4 + -3'P_10_5 + -4'P_10_6 + -5'P_10_7 + -5'P_10_8 + -5'P_10_9 + -4'P_10_10 + -3'P_10_11 + -2'P_10_12 + -1'P_10_13 + P_10_15 + 2'P_10_16 + 3'P_10_17 + 2'P_10_18 + -1'P_11_4 + -2'P_11_5 + -3'P_11_6 + -4'P_11_7 + -4'P_11_8 + -4'P_11_9 + -3'P_11_10 + -2'P_11_11 + -1'P_11_12 + P_11_14 + 2'P_11_15 + 3'P_11_16 + 3'P_11_17 + 2'P_11_18 + -1'P_12_5 + -2'P_12_6 + -3'P_12_7 + -3'P_12_8 + -3'P_12_9 + -2'P_12_10 + -1'P_12_11 + P_12_13 + 2'P_12_14 + 3'P_12_15 + 3'P_12_16 + 2'P_12_17 + P_12_18 + -1'P_13_6 + -2'P_13_7 + -2'P_13_8 + -2'P_13_9 + -1'P_13_10 + P_13_12 + 2'P_13_13 + 3'P_13_14 + 3'P_13_15 + 2'P_13_16 + P_13_17 + -1'P_14_7 + -1'P_14_8 + -1'P_14_9 + P_14_11 + 2'P_14_12 + 3'P_14_13 + 3'P_14_14 + 2'P_14_15 + P_14_16 + P_15_10 + 2'P_15_11 + 3'P_15_12 + 3'P_15_13 + 2'P_15_14 + P_15_15 + P_16_8 + P_16_9 + 2'P_16_10 + 3'P_16_11 + 3'P_16_12 + 2'P_16_13 + P_16_14 + P_17_8 + 2'P_17_9 + 3'P_17_10 + 3'P_17_11 + 2'P_17_12 + P_17_13 + P_18_8 + 2'P_18_9 + 3'P_18_10 + 2'P_18_11 + P_18_12 + P_19_8 + P_19_9 + P_19_10 + P_19_11 + cX_9 + 3'cX_10 + 5'cX_11 + 7'cX_12 + 9'cX_13 + 11'cX_14 + 13'cX_15 + 15'cX_16 + 17'cX_17 + 19'cX_18 + 21'cX_19 + cY_8 + 2'cY_9 + 4'cY_10 + 6'cY_11 + 8'cY_12 + 10'cY_13 + 12'cY_14 + 14'cY_15 + 16'cY_16 + 18'cY_17 + 20'cY_18 + 22'cY_19 + -12'L_0 + -11'L_1 + -10'L_2 + -9'L_3 + -8'L_4 + -7'L_5 + -6'L_6 + -5'L_7 + -4'L_8 + -3'L_9 + -2'L_10 + -1'L_11 + -1'L_28 + -2'L_29 + -3'L_30 + -4'L_31 + -5'L_32 + -6'L_33 + -7'L_34 + -8'L_35 + -9'L_36 + -10'L_37 + -11'L_38 + -1'R_11 + -2'R_12 + -3'R_13 + -4'R_14 + -5'R_15 + -6'R_16 + -7'R_17 + -8'R_18 + -9'R_19 + -10'R_20 + -11'R_21 + -12'R_22 + -13'R_23 + -14'R_24 + -15'R_25 + -16'R_26 + -17'R_27 + -18'R_28 + -20'R_29 + -23'R_30 + -26'R_31 + -29'R_32 + -31'R_33 + -33'R_34 + -35'R_35 + -37'R_36 + -39'R_37 + -41'R_38 + -43'R_39 = -418
invariant :P_8_19 + P_9_18 + P_10_17 + P_11_16 + P_12_15 + P_13_14 + P_14_13 + P_15_12 + P_16_11 + P_17_10 + P_18_9 + P_19_8 + R_28 = 1
invariant :P_19_19 + R_39 = 1
invariant :P_2_11 + P_3_10 + P_3_11 + P_3_12 + P_4_9 + P_4_10 + 2'P_4_11 + P_4_12 + P_4_13 + P_5_8 + P_5_9 + 2'P_5_10 + 2'P_5_11 + 2'P_5_12 + P_5_13 + P_5_14 + P_6_7 + P_6_8 + 2'P_6_9 + 2'P_6_10 + 3'P_6_11 + 2'P_6_12 + 2'P_6_13 + P_6_14 + P_6_15 + P_7_6 + P_7_7 + 2'P_7_8 + 2'P_7_9 + 3'P_7_10 + 3'P_7_11 + 3'P_7_12 + 2'P_7_13 + 2'P_7_14 + P_7_15 + P_7_16 + P_8_5 + P_8_6 + 2'P_8_7 + 2'P_8_8 + 3'P_8_9 + 3'P_8_10 + 4'P_8_11 + 3'P_8_12 + 3'P_8_13 + 2'P_8_14 + 2'P_8_15 + P_8_16 + P_8_17 + P_9_4 + P_9_5 + 2'P_9_6 + 2'P_9_7 + 3'P_9_8 + 3'P_9_9 + 4'P_9_10 + 4'P_9_11 + 4'P_9_12 + 3'P_9_13 + 3'P_9_14 + 2'P_9_15 + 2'P_9_16 + P_9_17 + P_9_18 + P_10_3 + P_10_4 + 2'P_10_5 + 2'P_10_6 + 3'P_10_7 + 3'P_10_8 + 4'P_10_9 + 4'P_10_10 + 5'P_10_11 + 4'P_10_12 + 4'P_10_13 + 3'P_10_14 + 3'P_10_15 + 2'P_10_16 + 2'P_10_17 + P_10_18 + P_11_2 + P_11_3 + 2'P_11_4 + 2'P_11_5 + 3'P_11_6 + 3'P_11_7 + 4'P_11_8 + 4'P_11_9 + 5'P_11_10 + 5'P_11_11 + 5'P_11_12 + 4'P_11_13 + 4'P_11_14 + 3'P_11_15 + 3'P_11_16 + 2'P_11_17 + P_11_18 + P_12_3 + P_12_4 + 2'P_12_5 + 2'P_12_6 + 3'P_12_7 + 3'P_12_8 + 4'P_12_9 + 4'P_12_10 + 5'P_12_11 + 4'P_12_12 + 4'P_12_13 + 3'P_12_14 + 3'P_12_15 + 2'P_12_16 + P_12_17 + P_13_4 + P_13_5 + 2'P_13_6 + 2'P_13_7 + 3'P_13_8 + 3'P_13_9 + 4'P_13_10 + 4'P_13_11 + 4'P_13_12 + 3'P_13_13 + 3'P_13_14 + 2'P_13_15 + P_13_16 + P_14_5 + P_14_6 + 2'P_14_7 + 2'P_14_8 + 3'P_14_9 + 3'P_14_10 + 4'P_14_11 + 3'P_14_12 + 3'P_14_13 + 2'P_14_14 + P_14_15 + P_15_6 + P_15_7 + 2'P_15_8 + 2'P_15_9 + 3'P_15_10 + 3'P_15_11 + 3'P_15_12 + 2'P_15_13 + P_15_14 + P_16_7 + P_16_8 + 2'P_16_9 + 2'P_16_10 + 3'P_16_11 + 2'P_16_12 + P_16_13 + P_17_8 + P_17_9 + 2'P_17_10 + 2'P_17_11 + P_17_12 + P_18_9 + P_18_10 + P_18_11 + -1'cX_12 + -2'cX_13 + -3'cX_14 + -4'cX_15 + -5'cX_16 + -6'cX_17 + -7'cX_18 + -8'cX_19 + -1'cY_12 + -2'cY_13 + -3'cY_14 + -4'cY_15 + -5'cY_16 + -6'cY_17 + -7'cY_18 + -8'cY_19 + 4'L_0 + 4'L_1 + 3'L_2 + 3'L_3 + 2'L_4 + 2'L_5 + L_6 + L_7 + L_31 + L_32 + 2'L_33 + 2'L_34 + 3'L_35 + 3'L_36 + 4'L_37 + 4'L_38 + R_14 + R_15 + 2'R_16 + 2'R_17 + 3'R_18 + 3'R_19 + 4'R_20 + 4'R_21 + 5'R_22 + 5'R_23 + 6'R_24 + 6'R_25 + 7'R_26 + 7'R_27 + 8'R_28 + 8'R_29 + 8'R_30 + 8'R_31 + 9'R_32 + 10'R_33 + 11'R_34 + 12'R_35 + 13'R_36 + 14'R_37 + 15'R_38 + 16'R_39 = 156
invariant :P_0_13 + P_3_13 + P_4_12 + P_4_13 + P_4_14 + P_5_11 + P_5_12 + 2'P_5_13 + P_5_14 + P_5_15 + P_6_10 + P_6_11 + 2'P_6_12 + 2'P_6_13 + 2'P_6_14 + P_6_15 + P_6_16 + P_7_9 + P_7_10 + 2'P_7_11 + 2'P_7_12 + 3'P_7_13 + 2'P_7_14 + 2'P_7_15 + P_7_16 + P_7_17 + P_8_8 + P_8_9 + 2'P_8_10 + 2'P_8_11 + 3'P_8_12 + 3'P_8_13 + 3'P_8_14 + 2'P_8_15 + 2'P_8_16 + P_8_17 + P_8_18 + P_9_7 + P_9_8 + 2'P_9_9 + 2'P_9_10 + 3'P_9_11 + 3'P_9_12 + 4'P_9_13 + 3'P_9_14 + 3'P_9_15 + 2'P_9_16 + 2'P_9_17 + P_9_18 + P_10_6 + P_10_7 + 2'P_10_8 + 2'P_10_9 + 3'P_10_10 + 3'P_10_11 + 4'P_10_12 + 4'P_10_13 + 4'P_10_14 + 3'P_10_15 + 3'P_10_16 + 2'P_10_17 + P_10_18 + P_11_5 + P_11_6 + 2'P_11_7 + 2'P_11_8 + 3'P_11_9 + 3'P_11_10 + 4'P_11_11 + 4'P_11_12 + 5'P_11_13 + 4'P_11_14 + 4'P_11_15 + 3'P_11_16 + 2'P_11_17 + P_11_18 + P_12_4 + P_12_5 + 2'P_12_6 + 2'P_12_7 + 3'P_12_8 + 3'P_12_9 + 4'P_12_10 + 4'P_12_11 + 5'P_12_12 + 5'P_12_13 + 5'P_12_14 + 4'P_12_15 + 3'P_12_16 + 2'P_12_17 + P_12_18 + P_13_3 + P_13_4 + 2'P_13_5 + 2'P_13_6 + 3'P_13_7 + 3'P_13_8 + 4'P_13_9 + 4'P_13_10 + 5'P_13_11 + 5'P_13_12 + 6'P_13_13 + 5'P_13_14 + 4'P_13_15 + 3'P_13_16 + 2'P_13_17 + P_13_18 + P_14_2 + P_14_3 + 2'P_14_4 + 2'P_14_5 + 3'P_14_6 + 3'P_14_7 + 4'P_14_8 + 4'P_14_9 + 5'P_14_10 + 5'P_14_11 + 6'P_14_12 + 6'P_14_13 + 5'P_14_14 + 4'P_14_15 + 3'P_14_16 + 2'P_14_17 + P_14_18 + P_15_3 + P_15_4 + 2'P_15_5 + 2'P_15_6 + 3'P_15_7 + 3'P_15_8 + 4'P_15_9 + 4'P_15_10 + 5'P_15_11 + 5'P_15_12 + 5'P_15_13 + 4'P_15_14 + 3'P_15_15 + 2'P_15_16 + P_15_17 + P_16_4 + P_16_5 + 2'P_16_6 + 2'P_16_7 + 3'P_16_8 + 3'P_16_9 + 4'P_16_10 + 4'P_16_11 + 4'P_16_12 + 4'P_16_13 + 3'P_16_14 + 2'P_16_15 + P_16_16 + P_17_5 + P_17_6 + 2'P_17_7 + 2'P_17_8 + 3'P_17_9 + 3'P_17_10 + 3'P_17_11 + 3'P_17_12 + 3'P_17_13 + 2'P_17_14 + P_17_15 + P_18_6 + P_18_7 + 2'P_18_8 + 2'P_18_9 + 2'P_18_10 + 2'P_18_11 + 2'P_18_12 + 2'P_18_13 + P_18_14 + P_19_7 + P_19_8 + P_19_9 + P_19_10 + P_19_11 + P_19_12 + P_19_13 + -1'cX_15 + -2'cX_16 + -3'cX_17 + -4'cX_18 + -5'cX_19 + -1'cY_14 + -2'cY_15 + -3'cY_16 + -4'cY_17 + -5'cY_18 + -6'cY_19 + 4'L_0 + 3'L_1 + 3'L_2 + 2'L_3 + 2'L_4 + L_5 + L_6 + L_34 + L_35 + 2'L_36 + 2'L_37 + 3'L_38 + R_17 + R_18 + 2'R_19 + 2'R_20 + 3'R_21 + 3'R_22 + 4'R_23 + 4'R_24 + 5'R_25 + 5'R_26 + 6'R_27 + 6'R_28 + 6'R_29 + 6'R_30 + 6'R_31 + 6'R_32 + 6'R_33 + 6'R_34 + 7'R_35 + 8'R_36 + 9'R_37 + 10'R_38 + 11'R_39 = 112
invariant :P_3_0 + -1'P_4_2 + -1'P_4_3 + -1'P_4_4 + -1'P_4_5 + -1'P_4_6 + -1'P_4_7 + -1'P_4_8 + -1'P_4_9 + -1'P_4_10 + -1'P_4_11 + -1'P_4_12 + -1'P_4_13 + -1'P_4_14 + -1'P_4_15 + -1'P_4_16 + -1'P_4_17 + -1'P_4_18 + -1'P_5_3 + -1'P_5_4 + -1'P_5_5 + -1'P_5_6 + -1'P_5_7 + -1'P_5_8 + -1'P_5_9 + -1'P_5_10 + -1'P_5_11 + -1'P_5_12 + -1'P_5_13 + -1'P_5_14 + -1'P_5_15 + -1'P_5_16 + -1'P_5_17 + -1'P_6_4 + -1'P_6_5 + -1'P_6_6 + -1'P_6_7 + -1'P_6_8 + -1'P_6_9 + -1'P_6_10 + -1'P_6_11 + -1'P_6_12 + -1'P_6_13 + -1'P_6_14 + -1'P_6_15 + -1'P_6_16 + -1'P_7_5 + -1'P_7_6 + -1'P_7_7 + -1'P_7_8 + -1'P_7_9 + -1'P_7_10 + -1'P_7_11 + -1'P_7_12 + -1'P_7_13 + -1'P_7_14 + -1'P_7_15 + -1'P_8_6 + -1'P_8_7 + -1'P_8_8 + -1'P_8_9 + -1'P_8_10 + -1'P_8_11 + -1'P_8_12 + -1'P_8_13 + -1'P_8_14 + -1'P_9_7 + -1'P_9_8 + -1'P_9_9 + -1'P_9_10 + -1'P_9_11 + -1'P_9_12 + -1'P_9_13 + -1'P_10_8 + -1'P_10_9 + -1'P_10_10 + -1'P_10_11 + -1'P_10_12 + -1'P_11_9 + -1'P_11_10 + -1'P_11_11 + -1'P_12_10 + P_13_10 + P_14_9 + P_14_10 + P_14_11 + P_15_8 + P_15_9 + P_15_10 + P_15_11 + P_15_12 + P_16_7 + P_16_8 + P_16_9 + P_16_10 + P_16_11 + P_16_12 + P_16_13 + P_17_6 + P_17_7 + P_17_8 + P_17_9 + P_17_10 + P_17_11 + P_17_12 + P_17_13 + P_17_14 + P_18_5 + P_18_6 + P_18_7 + P_18_8 + P_18_9 + P_18_10 + P_18_11 + P_18_12 + P_18_13 + P_18_14 + P_18_15 + P_19_4 + P_19_5 + P_19_6 + P_19_7 + P_19_8 + P_19_9 + P_19_10 + P_19_11 + P_19_12 + P_19_13 + P_19_14 + P_19_15 + P_19_16 + -1'cX_4 + -1'cX_5 + -1'cX_6 + -1'cX_7 + -1'cX_8 + -1'cX_9 + -1'cX_10 + -1'cX_11 + -1'cX_12 + -1'cX_13 + -1'cX_14 + -1'cX_15 + -1'cX_16 + -1'cX_17 + -1'cX_18 + -1'cX_19 + L_22 + L_23 + L_24 + L_25 + L_26 + L_27 + L_28 + L_29 + L_30 + L_31 + L_32 + L_33 + L_34 + L_35 + L_36 + L_37 + L_38 + R_24 + R_25 + R_26 + R_27 + R_28 + R_29 + R_30 + R_31 + R_32 + R_33 + R_34 + R_35 + R_36 + R_37 + R_38 + R_39 = 17
invariant :P_13_1 + P_13_2 + P_13_3 + P_13_4 + P_13_5 + P_13_6 + P_13_7 + P_13_8 + P_13_9 + P_13_10 + P_13_11 + P_13_12 + P_13_13 + P_13_14 + P_13_15 + P_13_16 + P_13_17 + P_13_18 + P_14_2 + P_14_3 + P_14_4 + P_14_5 + P_14_6 + P_14_7 + P_14_8 + P_14_9 + P_14_10 + P_14_11 + P_14_12 + P_14_13 + P_14_14 + P_14_15 + P_14_16 + P_14_17 + P_15_3 + P_15_4 + P_15_5 + P_15_6 + P_15_7 + P_15_8 + P_15_9 + P_15_10 + P_15_11 + P_15_12 + P_15_13 + P_15_14 + P_15_15 + P_15_16 + P_16_4 + P_16_5 + P_16_6 + P_16_7 + P_16_8 + P_16_9 + P_16_10 + P_16_11 + P_16_12 + P_16_13 + P_16_14 + P_16_15 + P_17_5 + P_17_6 + P_17_7 + P_17_8 + P_17_9 + P_17_10 + P_17_11 + P_17_12 + P_17_13 + P_17_14 + P_18_6 + P_18_7 + P_18_8 + P_18_9 + P_18_10 + P_18_11 + P_18_12 + P_18_13 + P_19_7 + P_19_8 + P_19_9 + P_19_10 + P_19_11 + P_19_12 + cX_13 + cX_14 + cX_15 + cX_16 + cX_17 + cX_18 + cX_19 + -1'L_32 + -1'L_33 + -1'L_34 + -1'L_35 + -1'L_36 + -1'L_37 + -1'L_38 + -1'R_33 + -1'R_34 + -1'R_35 + -1'R_36 + -1'R_37 + -1'R_38 + -1'R_39 = -7
invariant :P_8_0 + -1'P_9_2 + -1'P_9_3 + -1'P_9_4 + -1'P_9_5 + -1'P_9_6 + -1'P_9_7 + -1'P_9_8 + -1'P_9_9 + -1'P_9_10 + -1'P_9_11 + -1'P_9_12 + -1'P_9_13 + -1'P_9_14 + -1'P_9_15 + -1'P_9_16 + -1'P_9_17 + -1'P_9_18 + -1'P_10_3 + -1'P_10_4 + -1'P_10_5 + -1'P_10_6 + -1'P_10_7 + -1'P_10_8 + -1'P_10_9 + -1'P_10_10 + -1'P_10_11 + -1'P_10_12 + -1'P_10_13 + -1'P_10_14 + -1'P_10_15 + -1'P_10_16 + -1'P_10_17 + -1'P_11_4 + -1'P_11_5 + -1'P_11_6 + -1'P_11_7 + -1'P_11_8 + -1'P_11_9 + -1'P_11_10 + -1'P_11_11 + -1'P_11_12 + -1'P_11_13 + -1'P_11_14 + -1'P_11_15 + -1'P_11_16 + -1'P_12_5 + -1'P_12_6 + -1'P_12_7 + -1'P_12_8 + -1'P_12_9 + -1'P_12_10 + -1'P_12_11 + -1'P_12_12 + -1'P_12_13 + -1'P_12_14 + -1'P_12_15 + -1'P_13_6 + -1'P_13_7 + -1'P_13_8 + -1'P_13_9 + -1'P_13_10 + -1'P_13_11 + -1'P_13_12 + -1'P_13_13 + -1'P_13_14 + -1'P_14_7 + -1'P_14_8 + -1'P_14_9 + -1'P_14_10 + -1'P_14_11 + -1'P_14_12 + -1'P_14_13 + -1'P_15_8 + -1'P_15_9 + -1'P_15_10 + -1'P_15_11 + -1'P_15_12 + -1'P_16_9 + -1'P_16_10 + -1'P_16_11 + -1'P_17_10 + P_18_10 + P_19_9 + P_19_10 + P_19_11 + -1'cX_9 + -1'cX_10 + -1'cX_11 + -1'cX_12 + -1'cX_13 + -1'cX_14 + -1'cX_15 + -1'cX_16 + -1'cX_17 + -1'cX_18 + -1'cX_19 + L_27 + L_28 + L_29 + L_30 + L_31 + L_32 + L_33 + L_34 + L_35 + L_36 + L_37 + L_38 + R_29 + R_30 + R_31 + R_32 + R_33 + R_34 + R_35 + R_36 + R_37 + R_38 + R_39 = 12
invariant :P_2_14 + P_3_13 + P_3_14 + P_3_15 + P_4_12 + P_4_13 + 2'P_4_14 + P_4_15 + P_4_16 + P_5_11 + P_5_12 + 2'P_5_13 + 2'P_5_14 + 2'P_5_15 + P_5_16 + P_5_17 + P_6_10 + P_6_11 + 2'P_6_12 + 2'P_6_13 + 3'P_6_14 + 2'P_6_15 + 2'P_6_16 + P_6_17 + P_6_18 + P_7_9 + P_7_10 + 2'P_7_11 + 2'P_7_12 + 3'P_7_13 + 3'P_7_14 + 3'P_7_15 + 2'P_7_16 + 2'P_7_17 + P_7_18 + P_8_8 + P_8_9 + 2'P_8_10 + 2'P_8_11 + 3'P_8_12 + 3'P_8_13 + 4'P_8_14 + 3'P_8_15 + 3'P_8_16 + 2'P_8_17 + P_8_18 + P_9_7 + P_9_8 + 2'P_9_9 + 2'P_9_10 + 3'P_9_11 + 3'P_9_12 + 4'P_9_13 + 4'P_9_14 + 4'P_9_15 + 3'P_9_16 + 2'P_9_17 + P_9_18 + P_10_6 + P_10_7 + 2'P_10_8 + 2'P_10_9 + 3'P_10_10 + 3'P_10_11 + 4'P_10_12 + 4'P_10_13 + 5'P_10_14 + 4'P_10_15 + 3'P_10_16 + 2'P_10_17 + P_10_18 + P_11_5 + P_11_6 + 2'P_11_7 + 2'P_11_8 + 3'P_11_9 + 3'P_11_10 + 4'P_11_11 + 4'P_11_12 + 5'P_11_13 + 5'P_11_14 + 4'P_11_15 + 3'P_11_16 + 2'P_11_17 + P_11_18 + P_12_4 + P_12_5 + 2'P_12_6 + 2'P_12_7 + 3'P_12_8 + 3'P_12_9 + 4'P_12_10 + 4'P_12_11 + 5'P_12_12 + 5'P_12_13 + 5'P_12_14 + 4'P_12_15 + 3'P_12_16 + 2'P_12_17 + P_12_18 + P_13_3 + P_13_4 + 2'P_13_5 + 2'P_13_6 + 3'P_13_7 + 3'P_13_8 + 4'P_13_9 + 4'P_13_10 + 5'P_13_11 + 5'P_13_12 + 5'P_13_13 + 5'P_13_14 + 4'P_13_15 + 3'P_13_16 + 2'P_13_17 + P_13_18 + P_14_2 + P_14_3 + 2'P_14_4 + 2'P_14_5 + 3'P_14_6 + 3'P_14_7 + 4'P_14_8 + 4'P_14_9 + 5'P_14_10 + 5'P_14_11 + 5'P_14_12 + 5'P_14_13 + 5'P_14_14 + 4'P_14_15 + 3'P_14_16 + 2'P_14_17 + P_14_18 + P_15_3 + P_15_4 + 2'P_15_5 + 2'P_15_6 + 3'P_15_7 + 3'P_15_8 + 4'P_15_9 + 4'P_15_10 + 4'P_15_11 + 4'P_15_12 + 4'P_15_13 + 4'P_15_14 + 3'P_15_15 + 2'P_15_16 + P_15_17 + P_16_4 + P_16_5 + 2'P_16_6 + 2'P_16_7 + 3'P_16_8 + 3'P_16_9 + 3'P_16_10 + 3'P_16_11 + 3'P_16_12 + 3'P_16_13 + 3'P_16_14 + 2'P_16_15 + P_16_16 + P_17_5 + P_17_6 + 2'P_17_7 + 2'P_17_8 + 2'P_17_9 + 2'P_17_10 + 2'P_17_11 + 2'P_17_12 + 2'P_17_13 + 2'P_17_14 + P_17_15 + P_18_6 + P_18_7 + P_18_8 + P_18_9 + P_18_10 + P_18_11 + P_18_12 + P_18_13 + P_18_14 + -1'cX_15 + -2'cX_16 + -3'cX_17 + -4'cX_18 + -5'cX_19 + -1'cY_15 + -2'cY_16 + -3'cY_17 + -4'cY_18 + -5'cY_19 + 3'L_0 + 2'L_1 + 2'L_2 + L_3 + L_4 + L_34 + L_35 + 2'L_36 + 2'L_37 + 3'L_38 + R_17 + R_18 + 2'R_19 + 2'R_20 + 3'R_21 + 3'R_22 + 4'R_23 + 4'R_24 + 5'R_25 + 5'R_26 + 5'R_27 + 5'R_28 + 5'R_29 + 5'R_30 + 5'R_31 + 5'R_32 + 5'R_33 + 5'R_34 + 6'R_35 + 7'R_36 + 8'R_37 + 9'R_38 + 10'R_39 = 98
invariant :cY_0 + -1'cY_2 + -2'cY_3 + -3'cY_4 + -4'cY_5 + -5'cY_6 + -6'cY_7 + -7'cY_8 + -8'cY_9 + -9'cY_10 + -10'cY_11 + -11'cY_12 + -12'cY_13 + -13'cY_14 + -14'cY_15 + -15'cY_16 + -16'cY_17 + -17'cY_18 + -18'cY_19 + 9'L_0 + 9'L_1 + 8'L_2 + 8'L_3 + 7'L_4 + 7'L_5 + 6'L_6 + 6'L_7 + 5'L_8 + 5'L_9 + 4'L_10 + 4'L_11 + 3'L_12 + 3'L_13 + 2'L_14 + 2'L_15 + L_16 + L_17 + -1'L_20 + -1'L_21 + -2'L_22 + -2'L_23 + -3'L_24 + -3'L_25 + -4'L_26 + -4'L_27 + -5'L_28 + -5'L_29 + -6'L_30 + -6'L_31 + -7'L_32 + -7'L_33 + -8'L_34 + -8'L_35 + -9'L_36 + -9'L_37 + -10'L_38 + -1'R_1 + R_4 + R_5 + 2'R_6 + 2'R_7 + 3'R_8 + 3'R_9 + 4'R_10 + 4'R_11 + 5'R_12 + 5'R_13 + 6'R_14 + 6'R_15 + 7'R_16 + 7'R_17 + 8'R_18 + 8'R_19 + 9'R_20 + 9'R_21 + 10'R_22 + 10'R_23 + 11'R_24 + 11'R_25 + 12'R_26 + 12'R_27 + 13'R_28 + 13'R_29 + 14'R_30 + 14'R_31 + 15'R_32 + 15'R_33 + 16'R_34 + 16'R_35 + 17'R_36 + 17'R_37 + 18'R_38 + 18'R_39 = 161
invariant :P_11_0 + -1'P_12_2 + -1'P_12_3 + -1'P_12_4 + -1'P_12_5 + -1'P_12_6 + -1'P_12_7 + -1'P_12_8 + -1'P_12_9 + -1'P_12_10 + -1'P_12_11 + -1'P_12_12 + -1'P_12_13 + -1'P_12_14 + -1'P_12_15 + -1'P_12_16 + -1'P_12_17 + -1'P_12_18 + -1'P_13_3 + -1'P_13_4 + -1'P_13_5 + -1'P_13_6 + -1'P_13_7 + -1'P_13_8 + -1'P_13_9 + -1'P_13_10 + -1'P_13_11 + -1'P_13_12 + -1'P_13_13 + -1'P_13_14 + -1'P_13_15 + -1'P_13_16 + -1'P_13_17 + -1'P_14_4 + -1'P_14_5 + -1'P_14_6 + -1'P_14_7 + -1'P_14_8 + -1'P_14_9 + -1'P_14_10 + -1'P_14_11 + -1'P_14_12 + -1'P_14_13 + -1'P_14_14 + -1'P_14_15 + -1'P_14_16 + -1'P_15_5 + -1'P_15_6 + -1'P_15_7 + -1'P_15_8 + -1'P_15_9 + -1'P_15_10 + -1'P_15_11 + -1'P_15_12 + -1'P_15_13 + -1'P_15_14 + -1'P_15_15 + -1'P_16_6 + -1'P_16_7 + -1'P_16_8 + -1'P_16_9 + -1'P_16_10 + -1'P_16_11 + -1'P_16_12 + -1'P_16_13 + -1'P_16_14 + -1'P_17_7 + -1'P_17_8 + -1'P_17_9 + -1'P_17_10 + -1'P_17_11 + -1'P_17_12 + -1'P_17_13 + -1'P_18_8 + -1'P_18_9 + -1'P_18_10 + -1'P_18_11 + -1'P_18_12 + -1'P_19_9 + -1'P_19_10 + -1'P_19_11 + -1'cX_12 + -1'cX_13 + -1'cX_14 + -1'cX_15 + -1'cX_16 + -1'cX_17 + -1'cX_18 + -1'cX_19 + L_30 + L_31 + L_32 + L_33 + L_34 + L_35 + L_36 + L_37 + L_38 + R_32 + R_33 + R_34 + R_35 + R_36 + R_37 + R_38 + R_39 = 9
invariant :P_16_19 + P_17_18 + P_18_17 + P_19_16 + R_36 = 1
invariant :P_17_0 + -1'P_18_2 + -1'P_18_3 + -1'P_18_4 + -1'P_18_5 + -1'P_18_6 + -1'P_18_7 + -1'P_18_8 + -1'P_18_9 + -1'P_18_10 + -1'P_18_11 + -1'P_18_12 + -1'P_18_13 + -1'P_18_14 + -1'P_18_15 + -1'P_18_16 + -1'P_18_17 + -1'P_18_18 + -1'P_19_3 + -1'P_19_4 + -1'P_19_5 + -1'P_19_6 + -1'P_19_7 + -1'P_19_8 + -1'P_19_9 + -1'P_19_10 + -1'P_19_11 + -1'P_19_12 + -1'P_19_13 + -1'P_19_14 + -1'P_19_15 + -1'P_19_16 + -1'P_19_17 + -1'cX_18 + -1'cX_19 + L_36 + L_37 + L_38 + R_38 + R_39 = 3
invariant :P_1_18 + -1'P_3_17 + -1'P_3_18 + -1'P_4_16 + -2'P_4_17 + -1'P_4_18 + -1'P_5_15 + -2'P_5_16 + -2'P_5_17 + -1'P_5_18 + -1'P_6_14 + -2'P_6_15 + -2'P_6_16 + -2'P_6_17 + -1'P_6_18 + -1'P_7_13 + -2'P_7_14 + -2'P_7_15 + -2'P_7_16 + -2'P_7_17 + -1'P_7_18 + -1'P_8_12 + -2'P_8_13 + -2'P_8_14 + -2'P_8_15 + -2'P_8_16 + -2'P_8_17 + -1'P_8_18 + -1'P_9_11 + -2'P_9_12 + -2'P_9_13 + -2'P_9_14 + -2'P_9_15 + -2'P_9_16 + -2'P_9_17 + -1'P_9_18 + -1'P_10_10 + -2'P_10_11 + -2'P_10_12 + -2'P_10_13 + -2'P_10_14 + -2'P_10_15 + -2'P_10_16 + -2'P_10_17 + -1'P_10_18 + -1'P_11_9 + -2'P_11_10 + -2'P_11_11 + -2'P_11_12 + -2'P_11_13 + -2'P_11_14 + -2'P_11_15 + -2'P_11_16 + -2'P_11_17 + -1'P_11_18 + -1'P_12_8 + -2'P_12_9 + -2'P_12_10 + -2'P_12_11 + -2'P_12_12 + -2'P_12_13 + -2'P_12_14 + -2'P_12_15 + -2'P_12_16 + -2'P_12_17 + -1'P_12_18 + -1'P_13_7 + -2'P_13_8 + -2'P_13_9 + -2'P_13_10 + -2'P_13_11 + -2'P_13_12 + -2'P_13_13 + -2'P_13_14 + -2'P_13_15 + -2'P_13_16 + -2'P_13_17 + -1'P_13_18 + -1'P_14_6 + -2'P_14_7 + -2'P_14_8 + -2'P_14_9 + -2'P_14_10 + -2'P_14_11 + -2'P_14_12 + -2'P_14_13 + -2'P_14_14 + -2'P_14_15 + -2'P_14_16 + -2'P_14_17 + -1'P_14_18 + -1'P_15_5 + -2'P_15_6 + -2'P_15_7 + -2'P_15_8 + -2'P_15_9 + -2'P_15_10 + -2'P_15_11 + -2'P_15_12 + -2'P_15_13 + -2'P_15_14 + -2'P_15_15 + -2'P_15_16 + -2'P_15_17 + -1'P_15_18 + -1'P_16_4 + -2'P_16_5 + -2'P_16_6 + -2'P_16_7 + -2'P_16_8 + -2'P_16_9 + -2'P_16_10 + -2'P_16_11 + -2'P_16_12 + -2'P_16_13 + -2'P_16_14 + -2'P_16_15 + -2'P_16_16 + -2'P_16_17 + -1'P_16_18 + -1'P_17_3 + -2'P_17_4 + -2'P_17_5 + -2'P_17_6 + -2'P_17_7 + -2'P_17_8 + -2'P_17_9 + -2'P_17_10 + -2'P_17_11 + -2'P_17_12 + -2'P_17_13 + -2'P_17_14 + -2'P_17_15 + -2'P_17_16 + -2'P_17_17 + -1'P_17_18 + -1'P_18_2 + -2'P_18_3 + -2'P_18_4 + -2'P_18_5 + -2'P_18_6 + -2'P_18_7 + -2'P_18_8 + -2'P_18_9 + -2'P_18_10 + -2'P_18_11 + -2'P_18_12 + -2'P_18_13 + -2'P_18_14 + -2'P_18_15 + -2'P_18_16 + -2'P_18_17 + -1'P_18_18 + -1'P_19_2 + -1'P_19_3 + -1'P_19_4 + -1'P_19_5 + -1'P_19_6 + -1'P_19_7 + -1'P_19_8 + -1'P_19_9 + -1'P_19_10 + -1'P_19_11 + -1'P_19_12 + -1'P_19_13 + -1'P_19_14 + -1'P_19_15 + -1'P_19_16 + -1'P_19_17 + cX_19 + cY_18 + 2'cY_19 + -2'L_0 + -1'L_1 + -1'L_38 + -1'R_21 + -2'R_22 + -2'R_23 + -2'R_24 + -2'R_25 + -2'R_26 + -2'R_27 + -2'R_28 + -2'R_29 + -2'R_30 + -2'R_31 + -2'R_32 + -2'R_33 + -2'R_34 + -2'R_35 + -2'R_36 + -2'R_37 + -2'R_38 + -3'R_39 = -38
invariant :P_15_1 + P_15_2 + P_15_3 + P_15_4 + P_15_5 + P_15_6 + P_15_7 + P_15_8 + P_15_9 + P_15_10 + P_15_11 + P_15_12 + P_15_13 + P_15_14 + P_15_15 + P_15_16 + P_15_17 + P_15_18 + P_16_2 + P_16_3 + P_16_4 + P_16_5 + P_16_6 + P_16_7 + P_16_8 + P_16_9 + P_16_10 + P_16_11 + P_16_12 + P_16_13 + P_16_14 + P_16_15 + P_16_16 + P_16_17 + P_17_3 + P_17_4 + P_17_5 + P_17_6 + P_17_7 + P_17_8 + P_17_9 + P_17_10 + P_17_11 + P_17_12 + P_17_13 + P_17_14 + P_17_15 + P_17_16 + P_18_4 + P_18_5 + P_18_6 + P_18_7 + P_18_8 + P_18_9 + P_18_10 + P_18_11 + P_18_12 + P_18_13 + P_18_14 + P_18_15 + P_19_5 + P_19_6 + P_19_7 + P_19_8 + P_19_9 + P_19_10 + P_19_11 + P_19_12 + P_19_13 + P_19_14 + cX_15 + cX_16 + cX_17 + cX_18 + cX_19 + -1'L_34 + -1'L_35 + -1'L_36 + -1'L_37 + -1'L_38 + -1'R_35 + -1'R_36 + -1'R_37 + -1'R_38 + -1'R_39 = -5
invariant :P_14_1 + P_14_2 + P_14_3 + P_14_4 + P_14_5 + P_14_6 + P_14_7 + P_14_8 + P_14_9 + P_14_10 + P_14_11 + P_14_12 + P_14_13 + P_14_14 + P_14_15 + P_14_16 + P_14_17 + P_14_18 + P_15_2 + P_15_3 + P_15_4 + P_15_5 + P_15_6 + P_15_7 + P_15_8 + P_15_9 + P_15_10 + P_15_11 + P_15_12 + P_15_13 + P_15_14 + P_15_15 + P_15_16 + P_15_17 + P_16_3 + P_16_4 + P_16_5 + P_16_6 + P_16_7 + P_16_8 + P_16_9 + P_16_10 + P_16_11 + P_16_12 + P_16_13 + P_16_14 + P_16_15 + P_16_16 + P_17_4 + P_17_5 + P_17_6 + P_17_7 + P_17_8 + P_17_9 + P_17_10 + P_17_11 + P_17_12 + P_17_13 + P_17_14 + P_17_15 + P_18_5 + P_18_6 + P_18_7 + P_18_8 + P_18_9 + P_18_10 + P_18_11 + P_18_12 + P_18_13 + P_18_14 + P_19_6 + P_19_7 + P_19_8 + P_19_9 + P_19_10 + P_19_11 + P_19_12 + P_19_13 + cX_14 + cX_15 + cX_16 + cX_17 + cX_18 + cX_19 + -1'L_33 + -1'L_34 + -1'L_35 + -1'L_36 + -1'L_37 + -1'L_38 + -1'R_34 + -1'R_35 + -1'R_36 + -1'R_37 + -1'R_38 + -1'R_39 = -6
invariant :P_16_1 + P_16_2 + P_16_3 + P_16_4 + P_16_5 + P_16_6 + P_16_7 + P_16_8 + P_16_9 + P_16_10 + P_16_11 + P_16_12 + P_16_13 + P_16_14 + P_16_15 + P_16_16 + P_16_17 + P_16_18 + P_17_2 + P_17_3 + P_17_4 + P_17_5 + P_17_6 + P_17_7 + P_17_8 + P_17_9 + P_17_10 + P_17_11 + P_17_12 + P_17_13 + P_17_14 + P_17_15 + P_17_16 + P_17_17 + P_18_3 + P_18_4 + P_18_5 + P_18_6 + P_18_7 + P_18_8 + P_18_9 + P_18_10 + P_18_11 + P_18_12 + P_18_13 + P_18_14 + P_18_15 + P_18_16 + P_19_4 + P_19_5 + P_19_6 + P_19_7 + P_19_8 + P_19_9 + P_19_10 + P_19_11 + P_19_12 + P_19_13 + P_19_14 + P_19_15 + cX_16 + cX_17 + cX_18 + cX_19 + -1'L_35 + -1'L_36 + -1'L_37 + -1'L_38 + -1'R_36 + -1'R_37 + -1'R_38 + -1'R_39 = -4
invariant :P_13_19 + P_14_18 + P_15_17 + P_16_16 + P_17_15 + P_18_14 + P_19_13 + R_33 = 1
invariant :P_2_3 + P_3_2 + P_3_3 + P_3_4 + P_4_3 + -1'P_4_6 + -1'P_4_7 + -1'P_4_8 + -1'P_4_9 + -1'P_4_10 + -1'P_4_11 + -1'P_4_12 + -1'P_4_13 + -1'P_4_14 + -1'P_4_15 + -1'P_4_16 + -1'P_4_17 + -1'P_4_18 + -1'P_5_5 + -1'P_5_6 + -2'P_5_7 + -2'P_5_8 + -2'P_5_9 + -2'P_5_10 + -2'P_5_11 + -2'P_5_12 + -2'P_5_13 + -2'P_5_14 + -2'P_5_15 + -2'P_5_16 + -2'P_5_17 + -1'P_5_18 + -1'P_6_4 + -1'P_6_5 + -2'P_6_6 + -2'P_6_7 + -3'P_6_8 + -3'P_6_9 + -3'P_6_10 + -3'P_6_11 + -3'P_6_12 + -3'P_6_13 + -3'P_6_14 + -3'P_6_15 + -3'P_6_16 + -2'P_6_17 + -1'P_6_18 + -1'P_7_4 + -2'P_7_5 + -2'P_7_6 + -3'P_7_7 + -3'P_7_8 + -4'P_7_9 + -4'P_7_10 + -4'P_7_11 + -4'P_7_12 + -4'P_7_13 + -4'P_7_14 + -4'P_7_15 + -3'P_7_16 + -2'P_7_17 + -1'P_7_18 + -1'P_8_4 + -2'P_8_5 + -3'P_8_6 + -3'P_8_7 + -4'P_8_8 + -4'P_8_9 + -5'P_8_10 + -5'P_8_11 + -5'P_8_12 + -5'P_8_13 + -5'P_8_14 + -4'P_8_15 + -3'P_8_16 + -2'P_8_17 + -1'P_8_18 + -1'P_9_4 + -2'P_9_5 + -3'P_9_6 + -4'P_9_7 + -4'P_9_8 + -5'P_9_9 + -5'P_9_10 + -6'P_9_11 + -6'P_9_12 + -6'P_9_13 + -5'P_9_14 + -4'P_9_15 + -3'P_9_16 + -2'P_9_17 + -1'P_9_18 + -1'P_10_4 + -2'P_10_5 + -3'P_10_6 + -4'P_10_7 + -5'P_10_8 + -5'P_10_9 + -6'P_10_10 + -6'P_10_11 + -7'P_10_12 + -6'P_10_13 + -5'P_10_14 + -4'P_10_15 + -3'P_10_16 + -2'P_10_17 + -1'P_10_18 + -1'P_11_4 + -2'P_11_5 + -3'P_11_6 + -4'P_11_7 + -5'P_11_8 + -6'P_11_9 + -6'P_11_10 + -7'P_11_11 + -6'P_11_12 + -6'P_11_13 + -5'P_11_14 + -4'P_11_15 + -3'P_11_16 + -2'P_11_17 + -1'P_11_18 + -1'P_12_4 + -2'P_12_5 + -3'P_12_6 + -4'P_12_7 + -5'P_12_8 + -6'P_12_9 + -7'P_12_10 + -6'P_12_11 + -6'P_12_12 + -5'P_12_13 + -5'P_12_14 + -4'P_12_15 + -3'P_12_16 + -2'P_12_17 + -1'P_12_18 + -1'P_13_4 + -2'P_13_5 + -3'P_13_6 + -4'P_13_7 + -5'P_13_8 + -6'P_13_9 + -6'P_13_10 + -6'P_13_11 + -5'P_13_12 + -5'P_13_13 + -4'P_13_14 + -4'P_13_15 + -3'P_13_16 + -2'P_13_17 + -1'P_13_18 + -1'P_14_4 + -2'P_14_5 + -3'P_14_6 + -4'P_14_7 + -5'P_14_8 + -5'P_14_9 + -5'P_14_10 + -5'P_14_11 + -5'P_14_12 + -4'P_14_13 + -4'P_14_14 + -3'P_14_15 + -3'P_14_16 + -2'P_14_17 + -1'P_14_18 + -1'P_15_4 + -2'P_15_5 + -3'P_15_6 + -4'P_15_7 + -4'P_15_8 + -4'P_15_9 + -4'P_15_10 + -4'P_15_11 + -4'P_15_12 + -4'P_15_13 + -3'P_15_14 + -3'P_15_15 + -2'P_15_16 + -2'P_15_17 + -1'P_15_18 + -1'P_16_4 + -2'P_16_5 + -3'P_16_6 + -3'P_16_7 + -3'P_16_8 + -3'P_16_9 + -3'P_16_10 + -3'P_16_11 + -3'P_16_12 + -3'P_16_13 + -3'P_16_14 + -2'P_16_15 + -2'P_16_16 + -1'P_16_17 + -1'P_16_18 + -1'P_17_4 + -2'P_17_5 + -2'P_17_6 + -2'P_17_7 + -2'P_17_8 + -2'P_17_9 + -2'P_17_10 + -2'P_17_11 + -2'P_17_12 + -2'P_17_13 + -2'P_17_14 + -2'P_17_15 + -1'P_17_16 + -1'P_17_17 + -1'P_18_4 + -1'P_18_5 + -1'P_18_6 + -1'P_18_7 + -1'P_18_8 + -1'P_18_9 + -1'P_18_10 + -1'P_18_11 + -1'P_18_12 + -1'P_18_13 + -1'P_18_14 + -1'P_18_15 + -1'P_18_16 + -1'cX_4 + -2'cX_5 + -3'cX_6 + -4'cX_7 + -5'cX_8 + -6'cX_9 + -7'cX_10 + -8'cX_11 + -9'cX_12 + -10'cX_13 + -11'cX_14 + -12'cX_15 + -13'cX_16 + -14'cX_17 + -15'cX_18 + -16'cX_19 + -1'cY_4 + -2'cY_5 + -3'cY_6 + -4'cY_7 + -5'cY_8 + -6'cY_9 + -7'cY_10 + -8'cY_11 + -9'cY_12 + -10'cY_13 + -11'cY_14 + -12'cY_15 + -13'cY_16 + -14'cY_17 + -15'cY_18 + -16'cY_19 + 8'L_0 + 8'L_1 + 7'L_2 + 7'L_3 + 6'L_4 + 6'L_5 + 5'L_6 + 5'L_7 + 4'L_8 + 4'L_9 + 3'L_10 + 3'L_11 + 2'L_12 + 2'L_13 + L_14 + L_15 + L_23 + L_24 + 2'L_25 + 2'L_26 + 3'L_27 + 3'L_28 + 4'L_29 + 4'L_30 + 5'L_31 + 5'L_32 + 6'L_33 + 6'L_34 + 7'L_35 + 7'L_36 + 8'L_37 + 8'L_38 + R_6 + R_7 + 2'R_8 + 2'R_9 + 3'R_10 + 3'R_11 + 4'R_12 + 4'R_13 + 5'R_14 + 5'R_15 + 6'R_16 + 6'R_17 + 7'R_18 + 7'R_19 + 8'R_20 + 8'R_21 + 9'R_22 + 9'R_23 + 11'R_24 + 12'R_25 + 14'R_26 + 15'R_27 + 17'R_28 + 18'R_29 + 20'R_30 + 21'R_31 + 23'R_32 + 24'R_33 + 26'R_34 + 27'R_35 + 29'R_36 + 30'R_37 + 31'R_38 + 32'R_39 = 312
invariant :P_0_16 + P_3_16 + P_4_15 + P_4_16 + P_4_17 + P_5_14 + P_5_15 + 2'P_5_16 + P_5_17 + P_5_18 + P_6_13 + P_6_14 + 2'P_6_15 + 2'P_6_16 + 2'P_6_17 + P_6_18 + P_7_12 + P_7_13 + 2'P_7_14 + 2'P_7_15 + 3'P_7_16 + 2'P_7_17 + P_7_18 + P_8_11 + P_8_12 + 2'P_8_13 + 2'P_8_14 + 3'P_8_15 + 3'P_8_16 + 2'P_8_17 + P_8_18 + P_9_10 + P_9_11 + 2'P_9_12 + 2'P_9_13 + 3'P_9_14 + 3'P_9_15 + 3'P_9_16 + 2'P_9_17 + P_9_18 + P_10_9 + P_10_10 + 2'P_10_11 + 2'P_10_12 + 3'P_10_13 + 3'P_10_14 + 3'P_10_15 + 3'P_10_16 + 2'P_10_17 + P_10_18 + P_11_8 + P_11_9 + 2'P_11_10 + 2'P_11_11 + 3'P_11_12 + 3'P_11_13 + 3'P_11_14 + 3'P_11_15 + 3'P_11_16 + 2'P_11_17 + P_11_18 + P_12_7 + P_12_8 + 2'P_12_9 + 2'P_12_10 + 3'P_12_11 + 3'P_12_12 + 3'P_12_13 + 3'P_12_14 + 3'P_12_15 + 3'P_12_16 + 2'P_12_17 + P_12_18 + P_13_6 + P_13_7 + 2'P_13_8 + 2'P_13_9 + 3'P_13_10 + 3'P_13_11 + 3'P_13_12 + 3'P_13_13 + 3'P_13_14 + 3'P_13_15 + 3'P_13_16 + 2'P_13_17 + P_13_18 + P_14_5 + P_14_6 + 2'P_14_7 + 2'P_14_8 + 3'P_14_9 + 3'P_14_10 + 3'P_14_11 + 3'P_14_12 + 3'P_14_13 + 3'P_14_14 + 3'P_14_15 + 3'P_14_16 + 2'P_14_17 + P_14_18 + P_15_4 + P_15_5 + 2'P_15_6 + 2'P_15_7 + 3'P_15_8 + 3'P_15_9 + 3'P_15_10 + 3'P_15_11 + 3'P_15_12 + 3'P_15_13 + 3'P_15_14 + 3'P_15_15 + 3'P_15_16 + 2'P_15_17 + P_15_18 + P_16_3 + P_16_4 + 2'P_16_5 + 2'P_16_6 + 3'P_16_7 + 3'P_16_8 + 3'P_16_9 + 3'P_16_10 + 3'P_16_11 + 3'P_16_12 + 3'P_16_13 + 3'P_16_14 + 3'P_16_15 + 3'P_16_16 + 2'P_16_17 + P_16_18 + P_17_2 + P_17_3 + 2'P_17_4 + 2'P_17_5 + 3'P_17_6 + 3'P_17_7 + 3'P_17_8 + 3'P_17_9 + 3'P_17_10 + 3'P_17_11 + 3'P_17_12 + 3'P_17_13 + 3'P_17_14 + 3'P_17_15 + 3'P_17_16 + 2'P_17_17 + P_17_18 + P_18_3 + P_18_4 + 2'P_18_5 + 2'P_18_6 + 2'P_18_7 + 2'P_18_8 + 2'P_18_9 + 2'P_18_10 + 2'P_18_11 + 2'P_18_12 + 2'P_18_13 + 2'P_18_14 + 2'P_18_15 + 2'P_18_16 + P_18_17 + P_19_4 + P_19_5 + P_19_6 + P_19_7 + P_19_8 + P_19_9 + P_19_10 + P_19_11 + P_19_12 + P_19_13 + P_19_14 + P_19_15 + P_19_16 + -1'cX_18 + -2'cX_19 + -1'cY_17 + -2'cY_18 + -3'cY_19 + 2'L_0 + 2'L_1 + L_2 + L_3 + L_37 + L_38 + R_20 + R_21 + 2'R_22 + 2'R_23 + 3'R_24 + 3'R_25 + 3'R_26 + 3'R_27 + 3'R_28 + 3'R_29 + 3'R_30 + 3'R_31 + 3'R_32 + 3'R_33 + 3'R_34 + 3'R_35 + 3'R_36 + 3'R_37 + 4'R_38 + 5'R_39 = 56
invariant :P_0_4 + P_3_4 + P_4_3 + P_4_4 + P_4_5 + P_5_2 + P_5_3 + 2'P_5_4 + P_5_5 + P_5_6 + P_6_3 + P_6_4 + P_6_5 + -1'P_6_8 + -1'P_6_9 + -1'P_6_10 + -1'P_6_11 + -1'P_6_12 + -1'P_6_13 + -1'P_6_14 + -1'P_6_15 + -1'P_6_16 + -1'P_6_17 + -1'P_6_18 + P_7_4 + -1'P_7_7 + -1'P_7_8 + -2'P_7_9 + -2'P_7_10 + -2'P_7_11 + -2'P_7_12 + -2'P_7_13 + -2'P_7_14 + -2'P_7_15 + -2'P_7_16 + -2'P_7_17 + -1'P_7_18 + -1'P_8_6 + -1'P_8_7 + -2'P_8_8 + -2'P_8_9 + -3'P_8_10 + -3'P_8_11 + -3'P_8_12 + -3'P_8_13 + -3'P_8_14 + -3'P_8_15 + -3'P_8_16 + -2'P_8_17 + -1'P_8_18 + -1'P_9_5 + -1'P_9_6 + -2'P_9_7 + -2'P_9_8 + -3'P_9_9 + -3'P_9_10 + -4'P_9_11 + -4'P_9_12 + -4'P_9_13 + -4'P_9_14 + -4'P_9_15 + -3'P_9_16 + -2'P_9_17 + -1'P_9_18 + -1'P_10_5 + -2'P_10_6 + -2'P_10_7 + -3'P_10_8 + -3'P_10_9 + -4'P_10_10 + -4'P_10_11 + -5'P_10_12 + -5'P_10_13 + -5'P_10_14 + -4'P_10_15 + -3'P_10_16 + -2'P_10_17 + -1'P_10_18 + -1'P_11_5 + -2'P_11_6 + -3'P_11_7 + -3'P_11_8 + -4'P_11_9 + -4'P_11_10 + -5'P_11_11 + -5'P_11_12 + -6'P_11_13 + -5'P_11_14 + -4'P_11_15 + -3'P_11_16 + -2'P_11_17 + -1'P_11_18 + -1'P_12_5 + -2'P_12_6 + -3'P_12_7 + -4'P_12_8 + -4'P_12_9 + -5'P_12_10 + -5'P_12_11 + -6'P_12_12 + -5'P_12_13 + -5'P_12_14 + -4'P_12_15 + -3'P_12_16 + -2'P_12_17 + -1'P_12_18 + -1'P_13_5 + -2'P_13_6 + -3'P_13_7 + -4'P_13_8 + -5'P_13_9 + -5'P_13_10 + -6'P_13_11 + -5'P_13_12 + -5'P_13_13 + -4'P_13_14 + -4'P_13_15 + -3'P_13_16 + -2'P_13_17 + -1'P_13_18 + -1'P_14_5 + -2'P_14_6 + -3'P_14_7 + -4'P_14_8 + -5'P_14_9 + -6'P_14_10 + -5'P_14_11 + -5'P_14_12 + -4'P_14_13 + -4'P_14_14 + -3'P_14_15 + -3'P_14_16 + -2'P_14_17 + -1'P_14_18 + -1'P_15_5 + -2'P_15_6 + -3'P_15_7 + -4'P_15_8 + -5'P_15_9 + -5'P_15_10 + -5'P_15_11 + -4'P_15_12 + -4'P_15_13 + -3'P_15_14 + -3'P_15_15 + -2'P_15_16 + -2'P_15_17 + -1'P_15_18 + -1'P_16_5 + -2'P_16_6 + -3'P_16_7 + -4'P_16_8 + -4'P_16_9 + -4'P_16_10 + -4'P_16_11 + -4'P_16_12 + -3'P_16_13 + -3'P_16_14 + -2'P_16_15 + -2'P_16_16 + -1'P_16_17 + -1'P_16_18 + -1'P_17_5 + -2'P_17_6 + -3'P_17_7 + -3'P_17_8 + -3'P_17_9 + -3'P_17_10 + -3'P_17_11 + -3'P_17_12 + -3'P_17_13 + -2'P_17_14 + -2'P_17_15 + -1'P_17_16 + -1'P_17_17 + -1'P_18_5 + -2'P_18_6 + -2'P_18_7 + -2'P_18_8 + -2'P_18_9 + -2'P_18_10 + -2'P_18_11 + -2'P_18_12 + -2'P_18_13 + -2'P_18_14 + -1'P_18_15 + -1'P_18_16 + -1'P_19_5 + -1'P_19_6 + -1'P_19_7 + -1'P_19_8 + -1'P_19_9 + -1'P_19_10 + -1'P_19_11 + -1'P_19_12 + -1'P_19_13 + -1'P_19_14 + -1'P_19_15 + -1'cX_6 + -2'cX_7 + -3'cX_8 + -4'cX_9 + -5'cX_10 + -6'cX_11 + -7'cX_12 + -8'cX_13 + -9'cX_14 + -10'cX_15 + -11'cX_16 + -12'cX_17 + -13'cX_18 + -14'cX_19 + -1'cY_5 + -2'cY_6 + -3'cY_7 + -4'cY_8 + -5'cY_9 + -6'cY_10 + -7'cY_11 + -8'cY_12 + -9'cY_13 + -10'cY_14 + -11'cY_15 + -12'cY_16 + -13'cY_17 + -14'cY_18 + -15'cY_19 + 8'L_0 + 8'L_1 + 7'L_2 + 7'L_3 + 6'L_4 + 6'L_5 + 5'L_6 + 5'L_7 + 4'L_8 + 4'L_9 + 3'L_10 + 3'L_11 + 2'L_12 + 2'L_13 + L_14 + L_15 + L_25 + L_26 + 2'L_27 + 2'L_28 + 3'L_29 + 3'L_30 + 4'L_31 + 4'L_32 + 5'L_33 + 5'L_34 + 6'L_35 + 6'L_36 + 7'L_37 + 7'L_38 + R_8 + R_9 + 2'R_10 + 2'R_11 + 3'R_12 + 3'R_13 + 4'R_14 + 4'R_15 + 5'R_16 + 5'R_17 + 6'R_18 + 6'R_19 + 7'R_20 + 7'R_21 + 8'R_22 + 8'R_23 + 9'R_24 + 9'R_25 + 11'R_26 + 12'R_27 + 14'R_28 + 15'R_29 + 17'R_30 + 18'R_31 + 20'R_32 + 21'R_33 + 23'R_34 + 24'R_35 + 26'R_36 + 27'R_37 + 28'R_38 + 29'R_39 = 278
invariant :P_11_19 + P_12_18 + P_13_17 + P_14_16 + P_15_15 + P_16_14 + P_17_13 + P_18_12 + P_19_11 + R_31 = 1
invariant :P_4_19 + P_5_18 + P_6_17 + P_7_16 + P_8_15 + P_9_14 + P_10_13 + P_11_12 + P_12_11 + P_13_10 + P_14_9 + P_15_8 + P_16_7 + P_17_6 + P_18_5 + P_19_4 + R_24 = 1
invariant :P_13_0 + -1'P_14_2 + -1'P_14_3 + -1'P_14_4 + -1'P_14_5 + -1'P_14_6 + -1'P_14_7 + -1'P_14_8 + -1'P_14_9 + -1'P_14_10 + -1'P_14_11 + -1'P_14_12 + -1'P_14_13 + -1'P_14_14 + -1'P_14_15 + -1'P_14_16 + -1'P_14_17 + -1'P_14_18 + -1'P_15_3 + -1'P_15_4 + -1'P_15_5 + -1'P_15_6 + -1'P_15_7 + -1'P_15_8 + -1'P_15_9 + -1'P_15_10 + -1'P_15_11 + -1'P_15_12 + -1'P_15_13 + -1'P_15_14 + -1'P_15_15 + -1'P_15_16 + -1'P_15_17 + -1'P_16_4 + -1'P_16_5 + -1'P_16_6 + -1'P_16_7 + -1'P_16_8 + -1'P_16_9 + -1'P_16_10 + -1'P_16_11 + -1'P_16_12 + -1'P_16_13 + -1'P_16_14 + -1'P_16_15 + -1'P_16_16 + -1'P_17_5 + -1'P_17_6 + -1'P_17_7 + -1'P_17_8 + -1'P_17_9 + -1'P_17_10 + -1'P_17_11 + -1'P_17_12 + -1'P_17_13 + -1'P_17_14 + -1'P_17_15 + -1'P_18_6 + -1'P_18_7 + -1'P_18_8 + -1'P_18_9 + -1'P_18_10 + -1'P_18_11 + -1'P_18_12 + -1'P_18_13 + -1'P_18_14 + -1'P_19_7 + -1'P_19_8 + -1'P_19_9 + -1'P_19_10 + -1'P_19_11 + -1'P_19_12 + -1'P_19_13 + -1'cX_14 + -1'cX_15 + -1'cX_16 + -1'cX_17 + -1'cX_18 + -1'cX_19 + L_32 + L_33 + L_34 + L_35 + L_36 + L_37 + L_38 + R_34 + R_35 + R_36 + R_37 + R_38 + R_39 = 7
invariant :P_2_10 + P_3_9 + P_3_10 + P_3_11 + P_4_8 + P_4_9 + 2'P_4_10 + P_4_11 + P_4_12 + P_5_7 + P_5_8 + 2'P_5_9 + 2'P_5_10 + 2'P_5_11 + P_5_12 + P_5_13 + P_6_6 + P_6_7 + 2'P_6_8 + 2'P_6_9 + 3'P_6_10 + 2'P_6_11 + 2'P_6_12 + P_6_13 + P_6_14 + P_7_5 + P_7_6 + 2'P_7_7 + 2'P_7_8 + 3'P_7_9 + 3'P_7_10 + 3'P_7_11 + 2'P_7_12 + 2'P_7_13 + P_7_14 + P_7_15 + P_8_4 + P_8_5 + 2'P_8_6 + 2'P_8_7 + 3'P_8_8 + 3'P_8_9 + 4'P_8_10 + 3'P_8_11 + 3'P_8_12 + 2'P_8_13 + 2'P_8_14 + P_8_15 + P_8_16 + P_9_3 + P_9_4 + 2'P_9_5 + 2'P_9_6 + 3'P_9_7 + 3'P_9_8 + 4'P_9_9 + 4'P_9_10 + 4'P_9_11 + 3'P_9_12 + 3'P_9_13 + 2'P_9_14 + 2'P_9_15 + P_9_16 + P_9_17 + P_10_2 + P_10_3 + 2'P_10_4 + 2'P_10_5 + 3'P_10_6 + 3'P_10_7 + 4'P_10_8 + 4'P_10_9 + 5'P_10_10 + 4'P_10_11 + 4'P_10_12 + 3'P_10_13 + 3'P_10_14 + 2'P_10_15 + 2'P_10_16 + P_10_17 + P_10_18 + P_11_3 + P_11_4 + 2'P_11_5 + 2'P_11_6 + 3'P_11_7 + 3'P_11_8 + 4'P_11_9 + 4'P_11_10 + 4'P_11_11 + 3'P_11_12 + 3'P_11_13 + 2'P_11_14 + 2'P_11_15 + P_11_16 + P_11_17 + P_12_4 + P_12_5 + 2'P_12_6 + 2'P_12_7 + 3'P_12_8 + 3'P_12_9 + 4'P_12_10 + 3'P_12_11 + 3'P_12_12 + 2'P_12_13 + 2'P_12_14 + P_12_15 + P_12_16 + P_13_5 + P_13_6 + 2'P_13_7 + 2'P_13_8 + 3'P_13_9 + 3'P_13_10 + 3'P_13_11 + 2'P_13_12 + 2'P_13_13 + P_13_14 + P_13_15 + P_14_6 + P_14_7 + 2'P_14_8 + 2'P_14_9 + 3'P_14_10 + 2'P_14_11 + 2'P_14_12 + P_14_13 + P_14_14 + P_15_7 + P_15_8 + 2'P_15_9 + 2'P_15_10 + 2'P_15_11 + P_15_12 + P_15_13 + P_16_8 + P_16_9 + 2'P_16_10 + P_16_11 + P_16_12 + P_17_9 + P_17_10 + P_17_11 + P_18_10 + -1'cX_11 + -2'cX_12 + -3'cX_13 + -4'cX_14 + -5'cX_15 + -6'cX_16 + -7'cX_17 + -8'cX_18 + -9'cX_19 + -1'cY_11 + -2'cY_12 + -3'cY_13 + -4'cY_14 + -5'cY_15 + -6'cY_16 + -7'cY_17 + -8'cY_18 + -9'cY_19 + 5'L_0 + 4'L_1 + 4'L_2 + 3'L_3 + 3'L_4 + 2'L_5 + 2'L_6 + L_7 + L_8 + L_30 + L_31 + 2'L_32 + 2'L_33 + 3'L_34 + 3'L_35 + 4'L_36 + 4'L_37 + 5'L_38 + R_13 + R_14 + 2'R_15 + 2'R_16 + 3'R_17 + 3'R_18 + 4'R_19 + 4'R_20 + 5'R_21 + 5'R_22 + 6'R_23 + 6'R_24 + 7'R_25 + 7'R_26 + 8'R_27 + 8'R_28 + 9'R_29 + 9'R_30 + 10'R_31 + 11'R_32 + 12'R_33 + 13'R_34 + 14'R_35 + 15'R_36 + 16'R_37 + 17'R_38 + 18'R_39 = 176
invariant :P_15_0 + -1'P_16_2 + -1'P_16_3 + -1'P_16_4 + -1'P_16_5 + -1'P_16_6 + -1'P_16_7 + -1'P_16_8 + -1'P_16_9 + -1'P_16_10 + -1'P_16_11 + -1'P_16_12 + -1'P_16_13 + -1'P_16_14 + -1'P_16_15 + -1'P_16_16 + -1'P_16_17 + -1'P_16_18 + -1'P_17_3 + -1'P_17_4 + -1'P_17_5 + -1'P_17_6 + -1'P_17_7 + -1'P_17_8 + -1'P_17_9 + -1'P_17_10 + -1'P_17_11 + -1'P_17_12 + -1'P_17_13 + -1'P_17_14 + -1'P_17_15 + -1'P_17_16 + -1'P_17_17 + -1'P_18_4 + -1'P_18_5 + -1'P_18_6 + -1'P_18_7 + -1'P_18_8 + -1'P_18_9 + -1'P_18_10 + -1'P_18_11 + -1'P_18_12 + -1'P_18_13 + -1'P_18_14 + -1'P_18_15 + -1'P_18_16 + -1'P_19_5 + -1'P_19_6 + -1'P_19_7 + -1'P_19_8 + -1'P_19_9 + -1'P_19_10 + -1'P_19_11 + -1'P_19_12 + -1'P_19_13 + -1'P_19_14 + -1'P_19_15 + -1'cX_16 + -1'cX_17 + -1'cX_18 + -1'cX_19 + L_34 + L_35 + L_36 + L_37 + L_38 + R_36 + R_37 + R_38 + R_39 = 5
invariant :cX_1 + -3'cX_3 + -8'cX_4 + -15'cX_5 + -24'cX_6 + -35'cX_7 + -48'cX_8 + -63'cX_9 + -80'cX_10 + -99'cX_11 + -120'cX_12 + -143'cX_13 + -168'cX_14 + -195'cX_15 + -224'cX_16 + -255'cX_17 + -288'cX_18 + -323'cX_19 + -2'cY_2 + -6'cY_3 + -12'cY_4 + -20'cY_5 + -30'cY_6 + -42'cY_7 + -56'cY_8 + -72'cY_9 + -90'cY_10 + -110'cY_11 + -132'cY_12 + -156'cY_13 + -182'cY_14 + -210'cY_15 + -240'cY_16 + -272'cY_17 + -306'cY_18 + -342'cY_19 + 189'L_0 + 171'L_1 + 152'L_2 + 136'L_3 + 119'L_4 + 105'L_5 + 90'L_6 + 78'L_7 + 65'L_8 + 55'L_9 + 44'L_10 + 36'L_11 + 27'L_12 + 21'L_13 + 14'L_14 + 10'L_15 + 5'L_16 + 3'L_17 + -1'L_20 + L_21 + 2'L_22 + 6'L_23 + 9'L_24 + 15'L_25 + 20'L_26 + 28'L_27 + 35'L_28 + 45'L_29 + 54'L_30 + 66'L_31 + 77'L_32 + 91'L_33 + 104'L_34 + 120'L_35 + 135'L_36 + 153'L_37 + 170'L_38 + -1'R_3 + R_4 + 2'R_5 + 6'R_6 + 9'R_7 + 15'R_8 + 20'R_9 + 28'R_10 + 35'R_11 + 45'R_12 + 54'R_13 + 66'R_14 + 77'R_15 + 91'R_16 + 104'R_17 + 120'R_18 + 135'R_19 + 153'R_20 + 170'R_21 + 190'R_22 + 209'R_23 + 231'R_24 + 252'R_25 + 276'R_26 + 299'R_27 + 325'R_28 + 350'R_29 + 378'R_30 + 405'R_31 + 435'R_32 + 464'R_33 + 496'R_34 + 527'R_35 + 561'R_36 + 594'R_37 + 630'R_38 + 665'R_39 = 6497
invariant :P_2_16 + P_3_15 + P_3_16 + P_3_17 + P_4_14 + P_4_15 + 2'P_4_16 + P_4_17 + P_4_18 + P_5_13 + P_5_14 + 2'P_5_15 + 2'P_5_16 + 2'P_5_17 + P_5_18 + P_6_12 + P_6_13 + 2'P_6_14 + 2'P_6_15 + 3'P_6_16 + 2'P_6_17 + P_6_18 + P_7_11 + P_7_12 + 2'P_7_13 + 2'P_7_14 + 3'P_7_15 + 3'P_7_16 + 2'P_7_17 + P_7_18 + P_8_10 + P_8_11 + 2'P_8_12 + 2'P_8_13 + 3'P_8_14 + 3'P_8_15 + 3'P_8_16 + 2'P_8_17 + P_8_18 + P_9_9 + P_9_10 + 2'P_9_11 + 2'P_9_12 + 3'P_9_13 + 3'P_9_14 + 3'P_9_15 + 3'P_9_16 + 2'P_9_17 + P_9_18 + P_10_8 + P_10_9 + 2'P_10_10 + 2'P_10_11 + 3'P_10_12 + 3'P_10_13 + 3'P_10_14 + 3'P_10_15 + 3'P_10_16 + 2'P_10_17 + P_10_18 + P_11_7 + P_11_8 + 2'P_11_9 + 2'P_11_10 + 3'P_11_11 + 3'P_11_12 + 3'P_11_13 + 3'P_11_14 + 3'P_11_15 + 3'P_11_16 + 2'P_11_17 + P_11_18 + P_12_6 + P_12_7 + 2'P_12_8 + 2'P_12_9 + 3'P_12_10 + 3'P_12_11 + 3'P_12_12 + 3'P_12_13 + 3'P_12_14 + 3'P_12_15 + 3'P_12_16 + 2'P_12_17 + P_12_18 + P_13_5 + P_13_6 + 2'P_13_7 + 2'P_13_8 + 3'P_13_9 + 3'P_13_10 + 3'P_13_11 + 3'P_13_12 + 3'P_13_13 + 3'P_13_14 + 3'P_13_15 + 3'P_13_16 + 2'P_13_17 + P_13_18 + P_14_4 + P_14_5 + 2'P_14_6 + 2'P_14_7 + 3'P_14_8 + 3'P_14_9 + 3'P_14_10 + 3'P_14_11 + 3'P_14_12 + 3'P_14_13 + 3'P_14_14 + 3'P_14_15 + 3'P_14_16 + 2'P_14_17 + P_14_18 + P_15_3 + P_15_4 + 2'P_15_5 + 2'P_15_6 + 3'P_15_7 + 3'P_15_8 + 3'P_15_9 + 3'P_15_10 + 3'P_15_11 + 3'P_15_12 + 3'P_15_13 + 3'P_15_14 + 3'P_15_15 + 3'P_15_16 + 2'P_15_17 + P_15_18 + P_16_2 + P_16_3 + 2'P_16_4 + 2'P_16_5 + 3'P_16_6 + 3'P_16_7 + 3'P_16_8 + 3'P_16_9 + 3'P_16_10 + 3'P_16_11 + 3'P_16_12 + 3'P_16_13 + 3'P_16_14 + 3'P_16_15 + 3'P_16_16 + 2'P_16_17 + P_16_18 + P_17_3 + P_17_4 + 2'P_17_5 + 2'P_17_6 + 2'P_17_7 + 2'P_17_8 + 2'P_17_9 + 2'P_17_10 + 2'P_17_11 + 2'P_17_12 + 2'P_17_13 + 2'P_17_14 + 2'P_17_15 + 2'P_17_16 + P_17_17 + P_18_4 + P_18_5 + P_18_6 + P_18_7 + P_18_8 + P_18_9 + P_18_10 + P_18_11 + P_18_12 + P_18_13 + P_18_14 + P_18_15 + P_18_16 + -1'cX_17 + -2'cX_18 + -3'cX_19 + -1'cY_17 + -2'cY_18 + -3'cY_19 + 2'L_0 + L_1 + L_2 + L_36 + L_37 + 2'L_38 + R_19 + R_20 + 2'R_21 + 2'R_22 + 3'R_23 + 3'R_24 + 3'R_25 + 3'R_26 + 3'R_27 + 3'R_28 + 3'R_29 + 3'R_30 + 3'R_31 + 3'R_32 + 3'R_33 + 3'R_34 + 3'R_35 + 3'R_36 + 4'R_37 + 5'R_38 + 6'R_39 = 59
invariant :P_2_19 + P_3_18 + P_4_17 + P_5_16 + P_6_15 + P_7_14 + P_8_13 + P_9_12 + P_10_11 + P_11_10 + P_12_9 + P_13_8 + P_14_7 + P_15_6 + P_16_5 + P_17_4 + P_18_3 + P_19_2 + R_22 = 1
invariant :P_2_1 + -1'P_3_3 + -1'P_3_4 + -1'P_3_5 + -1'P_3_6 + -1'P_3_7 + -1'P_3_8 + -1'P_3_9 + -1'P_3_10 + -1'P_3_11 + -1'P_3_12 + -1'P_3_13 + -1'P_3_14 + -1'P_3_15 + -1'P_3_16 + -1'P_3_17 + -1'P_3_18 + -1'P_4_2 + -1'P_4_3 + -2'P_4_4 + -2'P_4_5 + -2'P_4_6 + -2'P_4_7 + -2'P_4_8 + -2'P_4_9 + -2'P_4_10 + -2'P_4_11 + -2'P_4_12 + -2'P_4_13 + -2'P_4_14 + -2'P_4_15 + -2'P_4_16 + -2'P_4_17 + -1'P_4_18 + -1'P_5_2 + -2'P_5_3 + -2'P_5_4 + -3'P_5_5 + -3'P_5_6 + -3'P_5_7 + -3'P_5_8 + -3'P_5_9 + -3'P_5_10 + -3'P_5_11 + -3'P_5_12 + -3'P_5_13 + -3'P_5_14 + -3'P_5_15 + -3'P_5_16 + -2'P_5_17 + -1'P_5_18 + -1'P_6_2 + -2'P_6_3 + -3'P_6_4 + -3'P_6_5 + -4'P_6_6 + -4'P_6_7 + -4'P_6_8 + -4'P_6_9 + -4'P_6_10 + -4'P_6_11 + -4'P_6_12 + -4'P_6_13 + -4'P_6_14 + -4'P_6_15 + -3'P_6_16 + -2'P_6_17 + -1'P_6_18 + -1'P_7_2 + -2'P_7_3 + -3'P_7_4 + -4'P_7_5 + -4'P_7_6 + -5'P_7_7 + -5'P_7_8 + -5'P_7_9 + -5'P_7_10 + -5'P_7_11 + -5'P_7_12 + -5'P_7_13 + -5'P_7_14 + -4'P_7_15 + -3'P_7_16 + -2'P_7_17 + -1'P_7_18 + -1'P_8_2 + -2'P_8_3 + -3'P_8_4 + -4'P_8_5 + -5'P_8_6 + -5'P_8_7 + -6'P_8_8 + -6'P_8_9 + -6'P_8_10 + -6'P_8_11 + -6'P_8_12 + -6'P_8_13 + -5'P_8_14 + -4'P_8_15 + -3'P_8_16 + -2'P_8_17 + -1'P_8_18 + -1'P_9_2 + -2'P_9_3 + -3'P_9_4 + -4'P_9_5 + -5'P_9_6 + -6'P_9_7 + -6'P_9_8 + -7'P_9_9 + -7'P_9_10 + -7'P_9_11 + -7'P_9_12 + -6'P_9_13 + -5'P_9_14 + -4'P_9_15 + -3'P_9_16 + -2'P_9_17 + -1'P_9_18 + -1'P_10_2 + -2'P_10_3 + -3'P_10_4 + -4'P_10_5 + -5'P_10_6 + -6'P_10_7 + -7'P_10_8 + -7'P_10_9 + -8'P_10_10 + -8'P_10_11 + -7'P_10_12 + -6'P_10_13 + -5'P_10_14 + -4'P_10_15 + -3'P_10_16 + -2'P_10_17 + -1'P_10_18 + -1'P_11_2 + -2'P_11_3 + -3'P_11_4 + -4'P_11_5 + -5'P_11_6 + -6'P_11_7 + -7'P_11_8 + -8'P_11_9 + -8'P_11_10 + -8'P_11_11 + -7'P_11_12 + -6'P_11_13 + -5'P_11_14 + -4'P_11_15 + -3'P_11_16 + -2'P_11_17 + -1'P_11_18 + -1'P_12_2 + -2'P_12_3 + -3'P_12_4 + -4'P_12_5 + -5'P_12_6 + -6'P_12_7 + -7'P_12_8 + -8'P_12_9 + -8'P_12_10 + -7'P_12_11 + -7'P_12_12 + -6'P_12_13 + -5'P_12_14 + -4'P_12_15 + -3'P_12_16 + -2'P_12_17 + -1'P_12_18 + -1'P_13_2 + -2'P_13_3 + -3'P_13_4 + -4'P_13_5 + -5'P_13_6 + -6'P_13_7 + -7'P_13_8 + -7'P_13_9 + -7'P_13_10 + -7'P_13_11 + -6'P_13_12 + -6'P_13_13 + -5'P_13_14 + -4'P_13_15 + -3'P_13_16 + -2'P_13_17 + -1'P_13_18 + -1'P_14_2 + -2'P_14_3 + -3'P_14_4 + -4'P_14_5 + -5'P_14_6 + -6'P_14_7 + -6'P_14_8 + -6'P_14_9 + -6'P_14_10 + -6'P_14_11 + -6'P_14_12 + -5'P_14_13 + -5'P_14_14 + -4'P_14_15 + -3'P_14_16 + -2'P_14_17 + -1'P_14_18 + -1'P_15_2 + -2'P_15_3 + -3'P_15_4 + -4'P_15_5 + -5'P_15_6 + -5'P_15_7 + -5'P_15_8 + -5'P_15_9 + -5'P_15_10 + -5'P_15_11 + -5'P_15_12 + -5'P_15_13 + -4'P_15_14 + -4'P_15_15 + -3'P_15_16 + -2'P_15_17 + -1'P_15_18 + -1'P_16_2 + -2'P_16_3 + -3'P_16_4 + -4'P_16_5 + -4'P_16_6 + -4'P_16_7 + -4'P_16_8 + -4'P_16_9 + -4'P_16_10 + -4'P_16_11 + -4'P_16_12 + -4'P_16_13 + -4'P_16_14 + -3'P_16_15 + -3'P_16_16 + -2'P_16_17 + -1'P_16_18 + -1'P_17_2 + -2'P_17_3 + -3'P_17_4 + -3'P_17_5 + -3'P_17_6 + -3'P_17_7 + -3'P_17_8 + -3'P_17_9 + -3'P_17_10 + -3'P_17_11 + -3'P_17_12 + -3'P_17_13 + -3'P_17_14 + -3'P_17_15 + -2'P_17_16 + -2'P_17_17 + -1'P_17_18 + -1'P_18_2 + -2'P_18_3 + -2'P_18_4 + -2'P_18_5 + -2'P_18_6 + -2'P_18_7 + -2'P_18_8 + -2'P_18_9 + -2'P_18_10 + -2'P_18_11 + -2'P_18_12 + -2'P_18_13 + -2'P_18_14 + -2'P_18_15 + -2'P_18_16 + -1'P_18_17 + -1'P_18_18 + -1'P_19_2 + -1'P_19_3 + -1'P_19_4 + -1'P_19_5 + -1'P_19_6 + -1'P_19_7 + -1'P_19_8 + -1'P_19_9 + -1'P_19_10 + -1'P_19_11 + -1'P_19_12 + -1'P_19_13 + -1'P_19_14 + -1'P_19_15 + -1'P_19_16 + -1'P_19_17 + -1'cX_3 + -2'cX_4 + -3'cX_5 + -4'cX_6 + -5'cX_7 + -6'cX_8 + -7'cX_9 + -8'cX_10 + -9'cX_11 + -10'cX_12 + -11'cX_13 + -12'cX_14 + -13'cX_15 + -14'cX_16 + -15'cX_17 + -16'cX_18 + -17'cX_19 + -1'cY_2 + -2'cY_3 + -3'cY_4 + -4'cY_5 + -5'cY_6 + -6'cY_7 + -7'cY_8 + -8'cY_9 + -9'cY_10 + -10'cY_11 + -11'cY_12 + -12'cY_13 + -13'cY_14 + -14'cY_15 + -15'cY_16 + -16'cY_17 + -17'cY_18 + -18'cY_19 + 9'L_0 + 9'L_1 + 8'L_2 + 8'L_3 + 7'L_4 + 7'L_5 + 6'L_6 + 6'L_7 + 5'L_8 + 5'L_9 + 4'L_10 + 4'L_11 + 3'L_12 + 3'L_13 + 2'L_14 + 2'L_15 + L_16 + L_17 + L_23 + L_24 + 2'L_25 + 2'L_26 + 3'L_27 + 3'L_28 + 4'L_29 + 4'L_30 + 5'L_31 + 5'L_32 + 6'L_33 + 6'L_34 + 7'L_35 + 7'L_36 + 8'L_37 + 8'L_38 + R_4 + R_5 + 2'R_6 + 2'R_7 + 3'R_8 + 3'R_9 + 4'R_10 + 4'R_11 + 5'R_12 + 5'R_13 + 6'R_14 + 6'R_15 + 7'R_16 + 7'R_17 + 8'R_18 + 8'R_19 + 9'R_20 + 9'R_21 + 10'R_22 + 11'R_23 + 13'R_24 + 14'R_25 + 16'R_26 + 17'R_27 + 19'R_28 + 20'R_29 + 22'R_30 + 23'R_31 + 25'R_32 + 26'R_33 + 28'R_34 + 29'R_35 + 31'R_36 + 32'R_37 + 34'R_38 + 35'R_39 = 333
invariant :P_2_12 + P_3_11 + P_3_12 + P_3_13 + P_4_10 + P_4_11 + 2'P_4_12 + P_4_13 + P_4_14 + P_5_9 + P_5_10 + 2'P_5_11 + 2'P_5_12 + 2'P_5_13 + P_5_14 + P_5_15 + P_6_8 + P_6_9 + 2'P_6_10 + 2'P_6_11 + 3'P_6_12 + 2'P_6_13 + 2'P_6_14 + P_6_15 + P_6_16 + P_7_7 + P_7_8 + 2'P_7_9 + 2'P_7_10 + 3'P_7_11 + 3'P_7_12 + 3'P_7_13 + 2'P_7_14 + 2'P_7_15 + P_7_16 + P_7_17 + P_8_6 + P_8_7 + 2'P_8_8 + 2'P_8_9 + 3'P_8_10 + 3'P_8_11 + 4'P_8_12 + 3'P_8_13 + 3'P_8_14 + 2'P_8_15 + 2'P_8_16 + P_8_17 + P_8_18 + P_9_5 + P_9_6 + 2'P_9_7 + 2'P_9_8 + 3'P_9_9 + 3'P_9_10 + 4'P_9_11 + 4'P_9_12 + 4'P_9_13 + 3'P_9_14 + 3'P_9_15 + 2'P_9_16 + 2'P_9_17 + P_9_18 + P_10_4 + P_10_5 + 2'P_10_6 + 2'P_10_7 + 3'P_10_8 + 3'P_10_9 + 4'P_10_10 + 4'P_10_11 + 5'P_10_12 + 4'P_10_13 + 4'P_10_14 + 3'P_10_15 + 3'P_10_16 + 2'P_10_17 + P_10_18 + P_11_3 + P_11_4 + 2'P_11_5 + 2'P_11_6 + 3'P_11_7 + 3'P_11_8 + 4'P_11_9 + 4'P_11_10 + 5'P_11_11 + 5'P_11_12 + 5'P_11_13 + 4'P_11_14 + 4'P_11_15 + 3'P_11_16 + 2'P_11_17 + P_11_18 + P_12_2 + P_12_3 + 2'P_12_4 + 2'P_12_5 + 3'P_12_6 + 3'P_12_7 + 4'P_12_8 + 4'P_12_9 + 5'P_12_10 + 5'P_12_11 + 6'P_12_12 + 5'P_12_13 + 5'P_12_14 + 4'P_12_15 + 3'P_12_16 + 2'P_12_17 + P_12_18 + P_13_3 + P_13_4 + 2'P_13_5 + 2'P_13_6 + 3'P_13_7 + 3'P_13_8 + 4'P_13_9 + 4'P_13_10 + 5'P_13_11 + 5'P_13_12 + 5'P_13_13 + 4'P_13_14 + 3'P_13_15 + 2'P_13_16 + P_13_17 + P_14_4 + P_14_5 + 2'P_14_6 + 2'P_14_7 + 3'P_14_8 + 3'P_14_9 + 4'P_14_10 + 4'P_14_11 + 5'P_14_12 + 4'P_14_13 + 3'P_14_14 + 2'P_14_15 + P_14_16 + P_15_5 + P_15_6 + 2'P_15_7 + 2'P_15_8 + 3'P_15_9 + 3'P_15_10 + 4'P_15_11 + 4'P_15_12 + 3'P_15_13 + 2'P_15_14 + P_15_15 + P_16_6 + P_16_7 + 2'P_16_8 + 2'P_16_9 + 3'P_16_10 + 3'P_16_11 + 3'P_16_12 + 2'P_16_13 + P_16_14 + P_17_7 + P_17_8 + 2'P_17_9 + 2'P_17_10 + 2'P_17_11 + 2'P_17_12 + P_17_13 + P_18_8 + P_18_9 + P_18_10 + P_18_11 + P_18_12 + -1'cX_13 + -2'cX_14 + -3'cX_15 + -4'cX_16 + -5'cX_17 + -6'cX_18 + -7'cX_19 + -1'cY_13 + -2'cY_14 + -3'cY_15 + -4'cY_16 + -5'cY_17 + -6'cY_18 + -7'cY_19 + 4'L_0 + 3'L_1 + 3'L_2 + 2'L_3 + 2'L_4 + L_5 + L_6 + L_32 + L_33 + 2'L_34 + 2'L_35 + 3'L_36 + 3'L_37 + 4'L_38 + R_15 + R_16 + 2'R_17 + 2'R_18 + 3'R_19 + 3'R_20 + 4'R_21 + 4'R_22 + 5'R_23 + 5'R_24 + 6'R_25 + 6'R_26 + 7'R_27 + 7'R_28 + 7'R_29 + 7'R_30 + 7'R_31 + 7'R_32 + 8'R_33 + 9'R_34 + 10'R_35 + 11'R_36 + 12'R_37 + 13'R_38 + 14'R_39 = 137
invariant :P_0_7 + P_3_7 + P_4_6 + P_4_7 + P_4_8 + P_5_5 + P_5_6 + 2'P_5_7 + P_5_8 + P_5_9 + P_6_4 + P_6_5 + 2'P_6_6 + 2'P_6_7 + 2'P_6_8 + P_6_9 + P_6_10 + P_7_3 + P_7_4 + 2'P_7_5 + 2'P_7_6 + 3'P_7_7 + 2'P_7_8 + 2'P_7_9 + P_7_10 + P_7_11 + P_8_2 + P_8_3 + 2'P_8_4 + 2'P_8_5 + 3'P_8_6 + 3'P_8_7 + 3'P_8_8 + 2'P_8_9 + 2'P_8_10 + P_8_11 + P_8_12 + P_9_3 + P_9_4 + 2'P_9_5 + 2'P_9_6 + 3'P_9_7 + 2'P_9_8 + 2'P_9_9 + P_9_10 + P_9_11 + -1'P_9_14 + -1'P_9_15 + -1'P_9_16 + -1'P_9_17 + -1'P_9_18 + P_10_4 + P_10_5 + 2'P_10_6 + 2'P_10_7 + 2'P_10_8 + P_10_9 + P_10_10 + -1'P_10_13 + -1'P_10_14 + -2'P_10_15 + -2'P_10_16 + -2'P_10_17 + -1'P_10_18 + P_11_5 + P_11_6 + 2'P_11_7 + P_11_8 + P_11_9 + -1'P_11_12 + -1'P_11_13 + -2'P_11_14 + -2'P_11_15 + -3'P_11_16 + -2'P_11_17 + -1'P_11_18 + P_12_6 + P_12_7 + P_12_8 + -1'P_12_11 + -1'P_12_12 + -2'P_12_13 + -2'P_12_14 + -3'P_12_15 + -2'P_12_16 + -2'P_12_17 + -1'P_12_18 + P_13_7 + -1'P_13_10 + -1'P_13_11 + -2'P_13_12 + -2'P_13_13 + -3'P_13_14 + -2'P_13_15 + -2'P_13_16 + -1'P_13_17 + -1'P_13_18 + -1'P_14_9 + -1'P_14_10 + -2'P_14_11 + -2'P_14_12 + -3'P_14_13 + -2'P_14_14 + -2'P_14_15 + -1'P_14_16 + -1'P_14_17 + -1'P_15_8 + -1'P_15_9 + -2'P_15_10 + -2'P_15_11 + -3'P_15_12 + -2'P_15_13 + -2'P_15_14 + -1'P_15_15 + -1'P_15_16 + -1'P_16_8 + -2'P_16_9 + -2'P_16_10 + -3'P_16_11 + -2'P_16_12 + -2'P_16_13 + -1'P_16_14 + -1'P_16_15 + -1'P_17_8 + -2'P_17_9 + -3'P_17_10 + -2'P_17_11 + -2'P_17_12 + -1'P_17_13 + -1'P_17_14 + -1'P_18_8 + -2'P_18_9 + -2'P_18_10 + -2'P_18_11 + -1'P_18_12 + -1'P_18_13 + -1'P_19_8 + -1'P_19_9 + -1'P_19_10 + -1'P_19_11 + -1'P_19_12 + -1'cX_9 + -2'cX_10 + -3'cX_11 + -4'cX_12 + -5'cX_13 + -6'cX_14 + -7'cX_15 + -8'cX_16 + -9'cX_17 + -10'cX_18 + -11'cX_19 + -1'cY_8 + -2'cY_9 + -3'cY_10 + -4'cY_11 + -5'cY_12 + -6'cY_13 + -7'cY_14 + -8'cY_15 + -9'cY_16 + -10'cY_17 + -11'cY_18 + -12'cY_19 + 7'L_0 + 6'L_1 + 6'L_2 + 5'L_3 + 5'L_4 + 4'L_5 + 4'L_6 + 3'L_7 + 3'L_8 + 2'L_9 + 2'L_10 + L_11 + L_12 + L_28 + L_29 + 2'L_30 + 2'L_31 + 3'L_32 + 3'L_33 + 4'L_34 + 4'L_35 + 5'L_36 + 5'L_37 + 6'L_38 + R_11 + R_12 + 2'R_13 + 2'R_14 + 3'R_15 + 3'R_16 + 4'R_17 + 4'R_18 + 5'R_19 + 5'R_20 + 6'R_21 + 6'R_22 + 7'R_23 + 7'R_24 + 8'R_25 + 8'R_26 + 9'R_27 + 9'R_28 + 11'R_29 + 12'R_30 + 14'R_31 + 15'R_32 + 17'R_33 + 18'R_34 + 19'R_35 + 20'R_36 + 21'R_37 + 22'R_38 + 23'R_39 = 223
invariant :P_1_3 + -1'P_3_2 + -1'P_3_3 + -1'P_3_4 + -1'P_4_2 + -1'P_4_3 + -1'P_4_4 + P_4_6 + P_4_7 + P_4_8 + P_4_9 + P_4_10 + P_4_11 + P_4_12 + P_4_13 + P_4_14 + P_4_15 + P_4_16 + P_4_17 + P_4_18 + P_5_5 + 2'P_5_6 + 3'P_5_7 + 3'P_5_8 + 3'P_5_9 + 3'P_5_10 + 3'P_5_11 + 3'P_5_12 + 3'P_5_13 + 3'P_5_14 + 3'P_5_15 + 3'P_5_16 + 3'P_5_17 + 2'P_5_18 + P_6_3 + P_6_4 + 2'P_6_5 + 3'P_6_6 + 4'P_6_7 + 5'P_6_8 + 5'P_6_9 + 5'P_6_10 + 5'P_6_11 + 5'P_6_12 + 5'P_6_13 + 5'P_6_14 + 5'P_6_15 + 5'P_6_16 + 4'P_6_17 + 2'P_6_18 + P_7_3 + 2'P_7_4 + 3'P_7_5 + 4'P_7_6 + 5'P_7_7 + 6'P_7_8 + 7'P_7_9 + 7'P_7_10 + 7'P_7_11 + 7'P_7_12 + 7'P_7_13 + 7'P_7_14 + 7'P_7_15 + 6'P_7_16 + 4'P_7_17 + 2'P_7_18 + P_8_3 + 2'P_8_4 + 4'P_8_5 + 5'P_8_6 + 6'P_8_7 + 7'P_8_8 + 8'P_8_9 + 9'P_8_10 + 9'P_8_11 + 9'P_8_12 + 9'P_8_13 + 9'P_8_14 + 8'P_8_15 + 6'P_8_16 + 4'P_8_17 + 2'P_8_18 + P_9_3 + 2'P_9_4 + 4'P_9_5 + 6'P_9_6 + 7'P_9_7 + 8'P_9_8 + 9'P_9_9 + 10'P_9_10 + 11'P_9_11 + 11'P_9_12 + 11'P_9_13 + 10'P_9_14 + 8'P_9_15 + 6'P_9_16 + 4'P_9_17 + 2'P_9_18 + P_10_3 + 2'P_10_4 + 4'P_10_5 + 6'P_10_6 + 8'P_10_7 + 9'P_10_8 + 10'P_10_9 + 11'P_10_10 + 12'P_10_11 + 13'P_10_12 + 12'P_10_13 + 10'P_10_14 + 8'P_10_15 + 6'P_10_16 + 4'P_10_17 + 2'P_10_18 + P_11_3 + 2'P_11_4 + 4'P_11_5 + 6'P_11_6 + 8'P_11_7 + 10'P_11_8 + 11'P_11_9 + 12'P_11_10 + 13'P_11_11 + 13'P_11_12 + 12'P_11_13 + 10'P_11_14 + 8'P_11_15 + 6'P_11_16 + 4'P_11_17 + 2'P_11_18 + P_12_3 + 2'P_12_4 + 4'P_12_5 + 6'P_12_6 + 8'P_12_7 + 10'P_12_8 + 12'P_12_9 + 13'P_12_10 + 13'P_12_11 + 12'P_12_12 + 11'P_12_13 + 10'P_12_14 + 8'P_12_15 + 6'P_12_16 + 4'P_12_17 + 2'P_12_18 + P_13_3 + 2'P_13_4 + 4'P_13_5 + 6'P_13_6 + 8'P_13_7 + 10'P_13_8 + 12'P_13_9 + 13'P_13_10 + 12'P_13_11 + 11'P_13_12 + 10'P_13_13 + 9'P_13_14 + 8'P_13_15 + 6'P_13_16 + 4'P_13_17 + 2'P_13_18 + P_14_3 + 2'P_14_4 + 4'P_14_5 + 6'P_14_6 + 8'P_14_7 + 10'P_14_8 + 11'P_14_9 + 11'P_14_10 + 11'P_14_11 + 10'P_14_12 + 9'P_14_13 + 8'P_14_14 + 7'P_14_15 + 6'P_14_16 + 4'P_14_17 + 2'P_14_18 + P_15_3 + 2'P_15_4 + 4'P_15_5 + 6'P_15_6 + 8'P_15_7 + 9'P_15_8 + 9'P_15_9 + 9'P_15_10 + 9'P_15_11 + 9'P_15_12 + 8'P_15_13 + 7'P_15_14 + 6'P_15_15 + 5'P_15_16 + 4'P_15_17 + 2'P_15_18 + P_16_3 + 2'P_16_4 + 4'P_16_5 + 6'P_16_6 + 7'P_16_7 + 7'P_16_8 + 7'P_16_9 + 7'P_16_10 + 7'P_16_11 + 7'P_16_12 + 7'P_16_13 + 6'P_16_14 + 5'P_16_15 + 4'P_16_16 + 3'P_16_17 + 2'P_16_18 + P_17_3 + 2'P_17_4 + 4'P_17_5 + 5'P_17_6 + 5'P_17_7 + 5'P_17_8 + 5'P_17_9 + 5'P_17_10 + 5'P_17_11 + 5'P_17_12 + 5'P_17_13 + 5'P_17_14 + 4'P_17_15 + 3'P_17_16 + 2'P_17_17 + P_17_18 + P_18_3 + 2'P_18_4 + 3'P_18_5 + 3'P_18_6 + 3'P_18_7 + 3'P_18_8 + 3'P_18_9 + 3'P_18_10 + 3'P_18_11 + 3'P_18_12 + 3'P_18_13 + 3'P_18_14 + 3'P_18_15 + 2'P_18_16 + P_18_17 + P_19_3 + P_19_4 + P_19_5 + P_19_6 + P_19_7 + P_19_8 + P_19_9 + P_19_10 + P_19_11 + P_19_12 + P_19_13 + P_19_14 + P_19_15 + P_19_16 + cX_4 + 3'cX_5 + 5'cX_6 + 7'cX_7 + 9'cX_8 + 11'cX_9 + 13'cX_10 + 15'cX_11 + 17'cX_12 + 19'cX_13 + 21'cX_14 + 23'cX_15 + 25'cX_16 + 27'cX_17 + 29'cX_18 + 31'cX_19 + cY_3 + 2'cY_4 + 4'cY_5 + 6'cY_6 + 8'cY_7 + 10'cY_8 + 12'cY_9 + 14'cY_10 + 16'cY_11 + 18'cY_12 + 20'cY_13 + 22'cY_14 + 24'cY_15 + 26'cY_16 + 28'cY_17 + 30'cY_18 + 32'cY_19 + -17'L_0 + -16'L_1 + -15'L_2 + -14'L_3 + -13'L_4 + -12'L_5 + -11'L_6 + -10'L_7 + -9'L_8 + -8'L_9 + -7'L_10 + -6'L_11 + -5'L_12 + -4'L_13 + -3'L_14 + -2'L_15 + -1'L_16 + -1'L_23 + -2'L_24 + -3'L_25 + -4'L_26 + -5'L_27 + -6'L_28 + -7'L_29 + -8'L_30 + -9'L_31 + -10'L_32 + -11'L_33 + -12'L_34 + -13'L_35 + -14'L_36 + -15'L_37 + -16'L_38 + -1'R_6 + -2'R_7 + -3'R_8 + -4'R_9 + -5'R_10 + -6'R_11 + -7'R_12 + -8'R_13 + -9'R_14 + -10'R_15 + -11'R_16 + -12'R_17 + -13'R_18 + -14'R_19 + -15'R_20 + -16'R_21 + -17'R_22 + -18'R_23 + -20'R_24 + -23'R_25 + -26'R_26 + -29'R_27 + -32'R_28 + -35'R_29 + -38'R_30 + -41'R_31 + -44'R_32 + -47'R_33 + -50'R_34 + -53'R_35 + -56'R_36 + -59'R_37 + -61'R_38 + -63'R_39 = -608
invariant :P_1_19 + -1'P_3_18 + -1'P_4_17 + -1'P_4_18 + -1'P_5_16 + -1'P_5_17 + -1'P_5_18 + -1'P_6_15 + -1'P_6_16 + -1'P_6_17 + -1'P_6_18 + -1'P_7_14 + -1'P_7_15 + -1'P_7_16 + -1'P_7_17 + -1'P_7_18 + -1'P_8_13 + -1'P_8_14 + -1'P_8_15 + -1'P_8_16 + -1'P_8_17 + -1'P_8_18 + -1'P_9_12 + -1'P_9_13 + -1'P_9_14 + -1'P_9_15 + -1'P_9_16 + -1'P_9_17 + -1'P_9_18 + -1'P_10_11 + -1'P_10_12 + -1'P_10_13 + -1'P_10_14 + -1'P_10_15 + -1'P_10_16 + -1'P_10_17 + -1'P_10_18 + -1'P_11_10 + -1'P_11_11 + -1'P_11_12 + -1'P_11_13 + -1'P_11_14 + -1'P_11_15 + -1'P_11_16 + -1'P_11_17 + -1'P_11_18 + -1'P_12_9 + -1'P_12_10 + -1'P_12_11 + -1'P_12_12 + -1'P_12_13 + -1'P_12_14 + -1'P_12_15 + -1'P_12_16 + -1'P_12_17 + -1'P_12_18 + -1'P_13_8 + -1'P_13_9 + -1'P_13_10 + -1'P_13_11 + -1'P_13_12 + -1'P_13_13 + -1'P_13_14 + -1'P_13_15 + -1'P_13_16 + -1'P_13_17 + -1'P_13_18 + -1'P_14_7 + -1'P_14_8 + -1'P_14_9 + -1'P_14_10 + -1'P_14_11 + -1'P_14_12 + -1'P_14_13 + -1'P_14_14 + -1'P_14_15 + -1'P_14_16 + -1'P_14_17 + -1'P_14_18 + -1'P_15_6 + -1'P_15_7 + -1'P_15_8 + -1'P_15_9 + -1'P_15_10 + -1'P_15_11 + -1'P_15_12 + -1'P_15_13 + -1'P_15_14 + -1'P_15_15 + -1'P_15_16 + -1'P_15_17 + -1'P_15_18 + -1'P_16_5 + -1'P_16_6 + -1'P_16_7 + -1'P_16_8 + -1'P_16_9 + -1'P_16_10 + -1'P_16_11 + -1'P_16_12 + -1'P_16_13 + -1'P_16_14 + -1'P_16_15 + -1'P_16_16 + -1'P_16_17 + -1'P_16_18 + -1'P_17_4 + -1'P_17_5 + -1'P_17_6 + -1'P_17_7 + -1'P_17_8 + -1'P_17_9 + -1'P_17_10 + -1'P_17_11 + -1'P_17_12 + -1'P_17_13 + -1'P_17_14 + -1'P_17_15 + -1'P_17_16 + -1'P_17_17 + -1'P_17_18 + -1'P_18_3 + -1'P_18_4 + -1'P_18_5 + -1'P_18_6 + -1'P_18_7 + -1'P_18_8 + -1'P_18_9 + -1'P_18_10 + -1'P_18_11 + -1'P_18_12 + -1'P_18_13 + -1'P_18_14 + -1'P_18_15 + -1'P_18_16 + -1'P_18_17 + -1'P_18_18 + -1'P_19_2 + -1'P_19_3 + -1'P_19_4 + -1'P_19_5 + -1'P_19_6 + -1'P_19_7 + -1'P_19_8 + -1'P_19_9 + -1'P_19_10 + -1'P_19_11 + -1'P_19_12 + -1'P_19_13 + -1'P_19_14 + -1'P_19_15 + -1'P_19_16 + -1'P_19_17 + -1'P_19_18 + cY_19 + -1'L_0 + -1'R_22 + -1'R_23 + -1'R_24 + -1'R_25 + -1'R_26 + -1'R_27 + -1'R_28 + -1'R_29 + -1'R_30 + -1'R_31 + -1'R_32 + -1'R_33 + -1'R_34 + -1'R_35 + -1'R_36 + -1'R_37 + -1'R_38 + -1'R_39 = -18
invariant :P_0_1 + -1'P_3_2 + -1'P_3_3 + -1'P_3_4 + -1'P_3_5 + -1'P_3_6 + -1'P_3_7 + -1'P_3_8 + -1'P_3_9 + -1'P_3_10 + -1'P_3_11 + -1'P_3_12 + -1'P_3_13 + -1'P_3_14 + -1'P_3_15 + -1'P_3_16 + -1'P_3_17 + -1'P_3_18 + -1'P_4_2 + -2'P_4_3 + -2'P_4_4 + -2'P_4_5 + -2'P_4_6 + -2'P_4_7 + -2'P_4_8 + -2'P_4_9 + -2'P_4_10 + -2'P_4_11 + -2'P_4_12 + -2'P_4_13 + -2'P_4_14 + -2'P_4_15 + -2'P_4_16 + -2'P_4_17 + -1'P_4_18 + -1'P_5_2 + -2'P_5_3 + -3'P_5_4 + -3'P_5_5 + -3'P_5_6 + -3'P_5_7 + -3'P_5_8 + -3'P_5_9 + -3'P_5_10 + -3'P_5_11 + -3'P_5_12 + -3'P_5_13 + -3'P_5_14 + -3'P_5_15 + -3'P_5_16 + -2'P_5_17 + -1'P_5_18 + -1'P_6_2 + -2'P_6_3 + -3'P_6_4 + -4'P_6_5 + -4'P_6_6 + -4'P_6_7 + -4'P_6_8 + -4'P_6_9 + -4'P_6_10 + -4'P_6_11 + -4'P_6_12 + -4'P_6_13 + -4'P_6_14 + -4'P_6_15 + -3'P_6_16 + -2'P_6_17 + -1'P_6_18 + -1'P_7_2 + -2'P_7_3 + -3'P_7_4 + -4'P_7_5 + -5'P_7_6 + -5'P_7_7 + -5'P_7_8 + -5'P_7_9 + -5'P_7_10 + -5'P_7_11 + -5'P_7_12 + -5'P_7_13 + -5'P_7_14 + -4'P_7_15 + -3'P_7_16 + -2'P_7_17 + -1'P_7_18 + -1'P_8_2 + -2'P_8_3 + -3'P_8_4 + -4'P_8_5 + -5'P_8_6 + -6'P_8_7 + -6'P_8_8 + -6'P_8_9 + -6'P_8_10 + -6'P_8_11 + -6'P_8_12 + -6'P_8_13 + -5'P_8_14 + -4'P_8_15 + -3'P_8_16 + -2'P_8_17 + -1'P_8_18 + -1'P_9_2 + -2'P_9_3 + -3'P_9_4 + -4'P_9_5 + -5'P_9_6 + -6'P_9_7 + -7'P_9_8 + -7'P_9_9 + -7'P_9_10 + -7'P_9_11 + -7'P_9_12 + -6'P_9_13 + -5'P_9_14 + -4'P_9_15 + -3'P_9_16 + -2'P_9_17 + -1'P_9_18 + -1'P_10_2 + -2'P_10_3 + -3'P_10_4 + -4'P_10_5 + -5'P_10_6 + -6'P_10_7 + -7'P_10_8 + -8'P_10_9 + -8'P_10_10 + -8'P_10_11 + -7'P_10_12 + -6'P_10_13 + -5'P_10_14 + -4'P_10_15 + -3'P_10_16 + -2'P_10_17 + -1'P_10_18 + -1'P_11_2 + -2'P_11_3 + -3'P_11_4 + -4'P_11_5 + -5'P_11_6 + -6'P_11_7 + -7'P_11_8 + -8'P_11_9 + -9'P_11_10 + -8'P_11_11 + -7'P_11_12 + -6'P_11_13 + -5'P_11_14 + -4'P_11_15 + -3'P_11_16 + -2'P_11_17 + -1'P_11_18 + -1'P_12_2 + -2'P_12_3 + -3'P_12_4 + -4'P_12_5 + -5'P_12_6 + -6'P_12_7 + -7'P_12_8 + -8'P_12_9 + -8'P_12_10 + -8'P_12_11 + -7'P_12_12 + -6'P_12_13 + -5'P_12_14 + -4'P_12_15 + -3'P_12_16 + -2'P_12_17 + -1'P_12_18 + -1'P_13_2 + -2'P_13_3 + -3'P_13_4 + -4'P_13_5 + -5'P_13_6 + -6'P_13_7 + -7'P_13_8 + -7'P_13_9 + -7'P_13_10 + -7'P_13_11 + -7'P_13_12 + -6'P_13_13 + -5'P_13_14 + -4'P_13_15 + -3'P_13_16 + -2'P_13_17 + -1'P_13_18 + -1'P_14_2 + -2'P_14_3 + -3'P_14_4 + -4'P_14_5 + -5'P_14_6 + -6'P_14_7 + -6'P_14_8 + -6'P_14_9 + -6'P_14_10 + -6'P_14_11 + -6'P_14_12 + -6'P_14_13 + -5'P_14_14 + -4'P_14_15 + -3'P_14_16 + -2'P_14_17 + -1'P_14_18 + -1'P_15_2 + -2'P_15_3 + -3'P_15_4 + -4'P_15_5 + -5'P_15_6 + -5'P_15_7 + -5'P_15_8 + -5'P_15_9 + -5'P_15_10 + -5'P_15_11 + -5'P_15_12 + -5'P_15_13 + -5'P_15_14 + -4'P_15_15 + -3'P_15_16 + -2'P_15_17 + -1'P_15_18 + -1'P_16_2 + -2'P_16_3 + -3'P_16_4 + -4'P_16_5 + -4'P_16_6 + -4'P_16_7 + -4'P_16_8 + -4'P_16_9 + -4'P_16_10 + -4'P_16_11 + -4'P_16_12 + -4'P_16_13 + -4'P_16_14 + -4'P_16_15 + -3'P_16_16 + -2'P_16_17 + -1'P_16_18 + -1'P_17_2 + -2'P_17_3 + -3'P_17_4 + -3'P_17_5 + -3'P_17_6 + -3'P_17_7 + -3'P_17_8 + -3'P_17_9 + -3'P_17_10 + -3'P_17_11 + -3'P_17_12 + -3'P_17_13 + -3'P_17_14 + -3'P_17_15 + -3'P_17_16 + -2'P_17_17 + -1'P_17_18 + -1'P_18_2 + -2'P_18_3 + -2'P_18_4 + -2'P_18_5 + -2'P_18_6 + -2'P_18_7 + -2'P_18_8 + -2'P_18_9 + -2'P_18_10 + -2'P_18_11 + -2'P_18_12 + -2'P_18_13 + -2'P_18_14 + -2'P_18_15 + -2'P_18_16 + -2'P_18_17 + -1'P_18_18 + -1'P_19_2 + -1'P_19_3 + -1'P_19_4 + -1'P_19_5 + -1'P_19_6 + -1'P_19_7 + -1'P_19_8 + -1'P_19_9 + -1'P_19_10 + -1'P_19_11 + -1'P_19_12 + -1'P_19_13 + -1'P_19_14 + -1'P_19_15 + -1'P_19_16 + -1'P_19_17 + -1'P_19_18 + -1'cX_3 + -2'cX_4 + -3'cX_5 + -4'cX_6 + -5'cX_7 + -6'cX_8 + -7'cX_9 + -8'cX_10 + -9'cX_11 + -10'cX_12 + -11'cX_13 + -12'cX_14 + -13'cX_15 + -14'cX_16 + -15'cX_17 + -16'cX_18 + -17'cX_19 + -1'cY_2 + -2'cY_3 + -3'cY_4 + -4'cY_5 + -5'cY_6 + -6'cY_7 + -7'cY_8 + -8'cY_9 + -9'cY_10 + -10'cY_11 + -11'cY_12 + -12'cY_13 + -13'cY_14 + -14'cY_15 + -15'cY_16 + -16'cY_17 + -17'cY_18 + -18'cY_19 + 9'L_0 + 9'L_1 + 8'L_2 + 8'L_3 + 7'L_4 + 7'L_5 + 6'L_6 + 6'L_7 + 5'L_8 + 5'L_9 + 4'L_10 + 4'L_11 + 3'L_12 + 3'L_13 + 2'L_14 + 2'L_15 + L_16 + L_17 + -1'L_20 + L_23 + L_24 + 2'L_25 + 2'L_26 + 3'L_27 + 3'L_28 + 4'L_29 + 4'L_30 + 5'L_31 + 5'L_32 + 6'L_33 + 6'L_34 + 7'L_35 + 7'L_36 + 8'L_37 + 8'L_38 + R_2 + R_4 + R_5 + 2'R_6 + 2'R_7 + 3'R_8 + 3'R_9 + 4'R_10 + 4'R_11 + 5'R_12 + 5'R_13 + 6'R_14 + 6'R_15 + 7'R_16 + 7'R_17 + 8'R_18 + 8'R_19 + 9'R_20 + 9'R_21 + 10'R_22 + 11'R_23 + 13'R_24 + 14'R_25 + 16'R_26 + 17'R_27 + 19'R_28 + 20'R_29 + 22'R_30 + 23'R_31 + 25'R_32 + 26'R_33 + 28'R_34 + 29'R_35 + 31'R_36 + 32'R_37 + 34'R_38 + 35'R_39 = 333
invariant :P_2_18 + P_3_17 + P_3_18 + P_4_16 + P_4_17 + P_4_18 + P_5_15 + P_5_16 + P_5_17 + P_5_18 + P_6_14 + P_6_15 + P_6_16 + P_6_17 + P_6_18 + P_7_13 + P_7_14 + P_7_15 + P_7_16 + P_7_17 + P_7_18 + P_8_12 + P_8_13 + P_8_14 + P_8_15 + P_8_16 + P_8_17 + P_8_18 + P_9_11 + P_9_12 + P_9_13 + P_9_14 + P_9_15 + P_9_16 + P_9_17 + P_9_18 + P_10_10 + P_10_11 + P_10_12 + P_10_13 + P_10_14 + P_10_15 + P_10_16 + P_10_17 + P_10_18 + P_11_9 + P_11_10 + P_11_11 + P_11_12 + P_11_13 + P_11_14 + P_11_15 + P_11_16 + P_11_17 + P_11_18 + P_12_8 + P_12_9 + P_12_10 + P_12_11 + P_12_12 + P_12_13 + P_12_14 + P_12_15 + P_12_16 + P_12_17 + P_12_18 + P_13_7 + P_13_8 + P_13_9 + P_13_10 + P_13_11 + P_13_12 + P_13_13 + P_13_14 + P_13_15 + P_13_16 + P_13_17 + P_13_18 + P_14_6 + P_14_7 + P_14_8 + P_14_9 + P_14_10 + P_14_11 + P_14_12 + P_14_13 + P_14_14 + P_14_15 + P_14_16 + P_14_17 + P_14_18 + P_15_5 + P_15_6 + P_15_7 + P_15_8 + P_15_9 + P_15_10 + P_15_11 + P_15_12 + P_15_13 + P_15_14 + P_15_15 + P_15_16 + P_15_17 + P_15_18 + P_16_4 + P_16_5 + P_16_6 + P_16_7 + P_16_8 + P_16_9 + P_16_10 + P_16_11 + P_16_12 + P_16_13 + P_16_14 + P_16_15 + P_16_16 + P_16_17 + P_16_18 + P_17_3 + P_17_4 + P_17_5 + P_17_6 + P_17_7 + P_17_8 + P_17_9 + P_17_10 + P_17_11 + P_17_12 + P_17_13 + P_17_14 + P_17_15 + P_17_16 + P_17_17 + P_17_18 + P_18_2 + P_18_3 + P_18_4 + P_18_5 + P_18_6 + P_18_7 + P_18_8 + P_18_9 + P_18_10 + P_18_11 + P_18_12 + P_18_13 + P_18_14 + P_18_15 + P_18_16 + P_18_17 + P_18_18 + -1'cX_19 + -1'cY_19 + L_0 + L_38 + R_21 + R_22 + R_23 + R_24 + R_25 + R_26 + R_27 + R_28 + R_29 + R_30 + R_31 + R_32 + R_33 + R_34 + R_35 + R_36 + R_37 + R_38 + 2'R_39 = 20
invariant :P_5_0 + -1'P_6_2 + -1'P_6_3 + -1'P_6_4 + -1'P_6_5 + -1'P_6_6 + -1'P_6_7 + -1'P_6_8 + -1'P_6_9 + -1'P_6_10 + -1'P_6_11 + -1'P_6_12 + -1'P_6_13 + -1'P_6_14 + -1'P_6_15 + -1'P_6_16 + -1'P_6_17 + -1'P_6_18 + -1'P_7_3 + -1'P_7_4 + -1'P_7_5 + -1'P_7_6 + -1'P_7_7 + -1'P_7_8 + -1'P_7_9 + -1'P_7_10 + -1'P_7_11 + -1'P_7_12 + -1'P_7_13 + -1'P_7_14 + -1'P_7_15 + -1'P_7_16 + -1'P_7_17 + -1'P_8_4 + -1'P_8_5 + -1'P_8_6 + -1'P_8_7 + -1'P_8_8 + -1'P_8_9 + -1'P_8_10 + -1'P_8_11 + -1'P_8_12 + -1'P_8_13 + -1'P_8_14 + -1'P_8_15 + -1'P_8_16 + -1'P_9_5 + -1'P_9_6 + -1'P_9_7 + -1'P_9_8 + -1'P_9_9 + -1'P_9_10 + -1'P_9_11 + -1'P_9_12 + -1'P_9_13 + -1'P_9_14 + -1'P_9_15 + -1'P_10_6 + -1'P_10_7 + -1'P_10_8 + -1'P_10_9 + -1'P_10_10 + -1'P_10_11 + -1'P_10_12 + -1'P_10_13 + -1'P_10_14 + -1'P_11_7 + -1'P_11_8 + -1'P_11_9 + -1'P_11_10 + -1'P_11_11 + -1'P_11_12 + -1'P_11_13 + -1'P_12_8 + -1'P_12_9 + -1'P_12_10 + -1'P_12_11 + -1'P_12_12 + -1'P_13_9 + -1'P_13_10 + -1'P_13_11 + -1'P_14_10 + P_15_10 + P_16_9 + P_16_10 + P_16_11 + P_17_8 + P_17_9 + P_17_10 + P_17_11 + P_17_12 + P_18_7 + P_18_8 + P_18_9 + P_18_10 + P_18_11 + P_18_12 + P_18_13 + P_19_6 + P_19_7 + P_19_8 + P_19_9 + P_19_10 + P_19_11 + P_19_12 + P_19_13 + P_19_14 + -1'cX_6 + -1'cX_7 + -1'cX_8 + -1'cX_9 + -1'cX_10 + -1'cX_11 + -1'cX_12 + -1'cX_13 + -1'cX_14 + -1'cX_15 + -1'cX_16 + -1'cX_17 + -1'cX_18 + -1'cX_19 + L_24 + L_25 + L_26 + L_27 + L_28 + L_29 + L_30 + L_31 + L_32 + L_33 + L_34 + L_35 + L_36 + L_37 + L_38 + R_26 + R_27 + R_28 + R_29 + R_30 + R_31 + R_32 + R_33 + R_34 + R_35 + R_36 + R_37 + R_38 + R_39 = 15
invariant :P_10_19 + P_11_18 + P_12_17 + P_13_16 + P_14_15 + P_15_14 + P_16_13 + P_17_12 + P_18_11 + P_19_10 + R_30 = 1
invariant :P_12_0 + -1'P_13_2 + -1'P_13_3 + -1'P_13_4 + -1'P_13_5 + -1'P_13_6 + -1'P_13_7 + -1'P_13_8 + -1'P_13_9 + -1'P_13_10 + -1'P_13_11 + -1'P_13_12 + -1'P_13_13 + -1'P_13_14 + -1'P_13_15 + -1'P_13_16 + -1'P_13_17 + -1'P_13_18 + -1'P_14_3 + -1'P_14_4 + -1'P_14_5 + -1'P_14_6 + -1'P_14_7 + -1'P_14_8 + -1'P_14_9 + -1'P_14_10 + -1'P_14_11 + -1'P_14_12 + -1'P_14_13 + -1'P_14_14 + -1'P_14_15 + -1'P_14_16 + -1'P_14_17 + -1'P_15_4 + -1'P_15_5 + -1'P_15_6 + -1'P_15_7 + -1'P_15_8 + -1'P_15_9 + -1'P_15_10 + -1'P_15_11 + -1'P_15_12 + -1'P_15_13 + -1'P_15_14 + -1'P_15_15 + -1'P_15_16 + -1'P_16_5 + -1'P_16_6 + -1'P_16_7 + -1'P_16_8 + -1'P_16_9 + -1'P_16_10 + -1'P_16_11 + -1'P_16_12 + -1'P_16_13 + -1'P_16_14 + -1'P_16_15 + -1'P_17_6 + -1'P_17_7 + -1'P_17_8 + -1'P_17_9 + -1'P_17_10 + -1'P_17_11 + -1'P_17_12 + -1'P_17_13 + -1'P_17_14 + -1'P_18_7 + -1'P_18_8 + -1'P_18_9 + -1'P_18_10 + -1'P_18_11 + -1'P_18_12 + -1'P_18_13 + -1'P_19_8 + -1'P_19_9 + -1'P_19_10 + -1'P_19_11 + -1'P_19_12 + -1'cX_13 + -1'cX_14 + -1'cX_15 + -1'cX_16 + -1'cX_17 + -1'cX_18 + -1'cX_19 + L_31 + L_32 + L_33 + L_34 + L_35 + L_36 + L_37 + L_38 + R_33 + R_34 + R_35 + R_36 + R_37 + R_38 + R_39 = 8
invariant :P_12_19 + P_13_18 + P_14_17 + P_15_16 + P_16_15 + P_17_14 + P_18_13 + P_19_12 + R_32 = 1
invariant :P_14_0 + -1'P_15_2 + -1'P_15_3 + -1'P_15_4 + -1'P_15_5 + -1'P_15_6 + -1'P_15_7 + -1'P_15_8 + -1'P_15_9 + -1'P_15_10 + -1'P_15_11 + -1'P_15_12 + -1'P_15_13 + -1'P_15_14 + -1'P_15_15 + -1'P_15_16 + -1'P_15_17 + -1'P_15_18 + -1'P_16_3 + -1'P_16_4 + -1'P_16_5 + -1'P_16_6 + -1'P_16_7 + -1'P_16_8 + -1'P_16_9 + -1'P_16_10 + -1'P_16_11 + -1'P_16_12 + -1'P_16_13 + -1'P_16_14 + -1'P_16_15 + -1'P_16_16 + -1'P_16_17 + -1'P_17_4 + -1'P_17_5 + -1'P_17_6 + -1'P_17_7 + -1'P_17_8 + -1'P_17_9 + -1'P_17_10 + -1'P_17_11 + -1'P_17_12 + -1'P_17_13 + -1'P_17_14 + -1'P_17_15 + -1'P_17_16 + -1'P_18_5 + -1'P_18_6 + -1'P_18_7 + -1'P_18_8 + -1'P_18_9 + -1'P_18_10 + -1'P_18_11 + -1'P_18_12 + -1'P_18_13 + -1'P_18_14 + -1'P_18_15 + -1'P_19_6 + -1'P_19_7 + -1'P_19_8 + -1'P_19_9 + -1'P_19_10 + -1'P_19_11 + -1'P_19_12 + -1'P_19_13 + -1'P_19_14 + -1'cX_15 + -1'cX_16 + -1'cX_17 + -1'cX_18 + -1'cX_19 + L_33 + L_34 + L_35 + L_36 + L_37 + L_38 + R_35 + R_36 + R_37 + R_38 + R_39 = 6
invariant :P_9_0 + -1'P_10_2 + -1'P_10_3 + -1'P_10_4 + -1'P_10_5 + -1'P_10_6 + -1'P_10_7 + -1'P_10_8 + -1'P_10_9 + -1'P_10_10 + -1'P_10_11 + -1'P_10_12 + -1'P_10_13 + -1'P_10_14 + -1'P_10_15 + -1'P_10_16 + -1'P_10_17 + -1'P_10_18 + -1'P_11_3 + -1'P_11_4 + -1'P_11_5 + -1'P_11_6 + -1'P_11_7 + -1'P_11_8 + -1'P_11_9 + -1'P_11_10 + -1'P_11_11 + -1'P_11_12 + -1'P_11_13 + -1'P_11_14 + -1'P_11_15 + -1'P_11_16 + -1'P_11_17 + -1'P_12_4 + -1'P_12_5 + -1'P_12_6 + -1'P_12_7 + -1'P_12_8 + -1'P_12_9 + -1'P_12_10 + -1'P_12_11 + -1'P_12_12 + -1'P_12_13 + -1'P_12_14 + -1'P_12_15 + -1'P_12_16 + -1'P_13_5 + -1'P_13_6 + -1'P_13_7 + -1'P_13_8 + -1'P_13_9 + -1'P_13_10 + -1'P_13_11 + -1'P_13_12 + -1'P_13_13 + -1'P_13_14 + -1'P_13_15 + -1'P_14_6 + -1'P_14_7 + -1'P_14_8 + -1'P_14_9 + -1'P_14_10 + -1'P_14_11 + -1'P_14_12 + -1'P_14_13 + -1'P_14_14 + -1'P_15_7 + -1'P_15_8 + -1'P_15_9 + -1'P_15_10 + -1'P_15_11 + -1'P_15_12 + -1'P_15_13 + -1'P_16_8 + -1'P_16_9 + -1'P_16_10 + -1'P_16_11 + -1'P_16_12 + -1'P_17_9 + -1'P_17_10 + -1'P_17_11 + -1'P_18_10 + P_19_10 + -1'cX_10 + -1'cX_11 + -1'cX_12 + -1'cX_13 + -1'cX_14 + -1'cX_15 + -1'cX_16 + -1'cX_17 + -1'cX_18 + -1'cX_19 + L_28 + L_29 + L_30 + L_31 + L_32 + L_33 + L_34 + L_35 + L_36 + L_37 + L_38 + R_30 + R_31 + R_32 + R_33 + R_34 + R_35 + R_36 + R_37 + R_38 + R_39 = 11
invariant :L_0 + L_2 + L_4 + L_6 + L_8 + L_10 + L_12 + L_14 + L_16 + L_18 + L_20 + L_22 + L_24 + L_26 + L_28 + L_30 + L_32 + L_34 + L_36 + L_38 + -1'R_2 + -1'R_4 + -1'R_6 + -1'R_8 + -1'R_10 + -1'R_12 + -1'R_14 + -1'R_16 + -1'R_18 + -1'R_20 + -1'R_22 + -1'R_24 + -1'R_26 + -1'R_28 + -1'R_30 + -1'R_32 + -1'R_34 + -1'R_36 + -1'R_38 = 1
invariant :P_6_0 + -1'P_7_2 + -1'P_7_3 + -1'P_7_4 + -1'P_7_5 + -1'P_7_6 + -1'P_7_7 + -1'P_7_8 + -1'P_7_9 + -1'P_7_10 + -1'P_7_11 + -1'P_7_12 + -1'P_7_13 + -1'P_7_14 + -1'P_7_15 + -1'P_7_16 + -1'P_7_17 + -1'P_7_18 + -1'P_8_3 + -1'P_8_4 + -1'P_8_5 + -1'P_8_6 + -1'P_8_7 + -1'P_8_8 + -1'P_8_9 + -1'P_8_10 + -1'P_8_11 + -1'P_8_12 + -1'P_8_13 + -1'P_8_14 + -1'P_8_15 + -1'P_8_16 + -1'P_8_17 + -1'P_9_4 + -1'P_9_5 + -1'P_9_6 + -1'P_9_7 + -1'P_9_8 + -1'P_9_9 + -1'P_9_10 + -1'P_9_11 + -1'P_9_12 + -1'P_9_13 + -1'P_9_14 + -1'P_9_15 + -1'P_9_16 + -1'P_10_5 + -1'P_10_6 + -1'P_10_7 + -1'P_10_8 + -1'P_10_9 + -1'P_10_10 + -1'P_10_11 + -1'P_10_12 + -1'P_10_13 + -1'P_10_14 + -1'P_10_15 + -1'P_11_6 + -1'P_11_7 + -1'P_11_8 + -1'P_11_9 + -1'P_11_10 + -1'P_11_11 + -1'P_11_12 + -1'P_11_13 + -1'P_11_14 + -1'P_12_7 + -1'P_12_8 + -1'P_12_9 + -1'P_12_10 + -1'P_12_11 + -1'P_12_12 + -1'P_12_13 + -1'P_13_8 + -1'P_13_9 + -1'P_13_10 + -1'P_13_11 + -1'P_13_12 + -1'P_14_9 + -1'P_14_10 + -1'P_14_11 + -1'P_15_10 + P_16_10 + P_17_9 + P_17_10 + P_17_11 + P_18_8 + P_18_9 + P_18_10 + P_18_11 + P_18_12 + P_19_7 + P_19_8 + P_19_9 + P_19_10 + P_19_11 + P_19_12 + P_19_13 + -1'cX_7 + -1'cX_8 + -1'cX_9 + -1'cX_10 + -1'cX_11 + -1'cX_12 + -1'cX_13 + -1'cX_14 + -1'cX_15 + -1'cX_16 + -1'cX_17 + -1'cX_18 + -1'cX_19 + L_25 + L_26 + L_27 + L_28 + L_29 + L_30 + L_31 + L_32 + L_33 + L_34 + L_35 + L_36 + L_37 + L_38 + R_27 + R_28 + R_29 + R_30 + R_31 + R_32 + R_33 + R_34 + R_35 + R_36 + R_37 + R_38 + R_39 = 14
invariant :cX_0 + cX_3 + 3'cX_4 + 6'cX_5 + 10'cX_6 + 15'cX_7 + 21'cX_8 + 28'cX_9 + 36'cX_10 + 45'cX_11 + 55'cX_12 + 66'cX_13 + 78'cX_14 + 91'cX_15 + 105'cX_16 + 120'cX_17 + 136'cX_18 + 153'cX_19 + cY_2 + 3'cY_3 + 6'cY_4 + 10'cY_5 + 15'cY_6 + 21'cY_7 + 28'cY_8 + 36'cY_9 + 45'cY_10 + 55'cY_11 + 66'cY_12 + 78'cY_13 + 91'cY_14 + 105'cY_15 + 120'cY_16 + 136'cY_17 + 153'cY_18 + 171'cY_19 + -99'L_0 + -90'L_1 + -80'L_2 + -72'L_3 + -63'L_4 + -56'L_5 + -48'L_6 + -42'L_7 + -35'L_8 + -30'L_9 + -24'L_10 + -20'L_11 + -15'L_12 + -12'L_13 + -8'L_14 + -6'L_15 + -3'L_16 + -2'L_17 + L_20 + -2'L_23 + -3'L_24 + -6'L_25 + -8'L_26 + -12'L_27 + -15'L_28 + -20'L_29 + -24'L_30 + -30'L_31 + -35'L_32 + -42'L_33 + -48'L_34 + -56'L_35 + -63'L_36 + -72'L_37 + -80'L_38 + -1'R_1 + -1'R_2 + -1'R_4 + -1'R_5 + -3'R_6 + -4'R_7 + -7'R_8 + -9'R_9 + -13'R_10 + -16'R_11 + -21'R_12 + -25'R_13 + -31'R_14 + -36'R_15 + -43'R_16 + -49'R_17 + -57'R_18 + -64'R_19 + -73'R_20 + -81'R_21 + -91'R_22 + -100'R_23 + -111'R_24 + -121'R_25 + -133'R_26 + -144'R_27 + -157'R_28 + -169'R_29 + -183'R_30 + -196'R_31 + -211'R_32 + -225'R_33 + -241'R_34 + -256'R_35 + -273'R_36 + -289'R_37 + -307'R_38 + -324'R_39 = -3177
invariant :P_7_0 + -1'P_8_2 + -1'P_8_3 + -1'P_8_4 + -1'P_8_5 + -1'P_8_6 + -1'P_8_7 + -1'P_8_8 + -1'P_8_9 + -1'P_8_10 + -1'P_8_11 + -1'P_8_12 + -1'P_8_13 + -1'P_8_14 + -1'P_8_15 + -1'P_8_16 + -1'P_8_17 + -1'P_8_18 + -1'P_9_3 + -1'P_9_4 + -1'P_9_5 + -1'P_9_6 + -1'P_9_7 + -1'P_9_8 + -1'P_9_9 + -1'P_9_10 + -1'P_9_11 + -1'P_9_12 + -1'P_9_13 + -1'P_9_14 + -1'P_9_15 + -1'P_9_16 + -1'P_9_17 + -1'P_10_4 + -1'P_10_5 + -1'P_10_6 + -1'P_10_7 + -1'P_10_8 + -1'P_10_9 + -1'P_10_10 + -1'P_10_11 + -1'P_10_12 + -1'P_10_13 + -1'P_10_14 + -1'P_10_15 + -1'P_10_16 + -1'P_11_5 + -1'P_11_6 + -1'P_11_7 + -1'P_11_8 + -1'P_11_9 + -1'P_11_10 + -1'P_11_11 + -1'P_11_12 + -1'P_11_13 + -1'P_11_14 + -1'P_11_15 + -1'P_12_6 + -1'P_12_7 + -1'P_12_8 + -1'P_12_9 + -1'P_12_10 + -1'P_12_11 + -1'P_12_12 + -1'P_12_13 + -1'P_12_14 + -1'P_13_7 + -1'P_13_8 + -1'P_13_9 + -1'P_13_10 + -1'P_13_11 + -1'P_13_12 + -1'P_13_13 + -1'P_14_8 + -1'P_14_9 + -1'P_14_10 + -1'P_14_11 + -1'P_14_12 + -1'P_15_9 + -1'P_15_10 + -1'P_15_11 + -1'P_16_10 + P_17_10 + P_18_9 + P_18_10 + P_18_11 + P_19_8 + P_19_9 + P_19_10 + P_19_11 + P_19_12 + -1'cX_8 + -1'cX_9 + -1'cX_10 + -1'cX_11 + -1'cX_12 + -1'cX_13 + -1'cX_14 + -1'cX_15 + -1'cX_16 + -1'cX_17 + -1'cX_18 + -1'cX_19 + L_26 + L_27 + L_28 + L_29 + L_30 + L_31 + L_32 + L_33 + L_34 + L_35 + L_36 + L_37 + L_38 + R_28 + R_29 + R_30 + R_31 + R_32 + R_33 + R_34 + R_35 + R_36 + R_37 + R_38 + R_39 = 13
invariant :P_0_9 + P_3_9 + P_4_8 + P_4_9 + P_4_10 + P_5_7 + P_5_8 + 2'P_5_9 + P_5_10 + P_5_11 + P_6_6 + P_6_7 + 2'P_6_8 + 2'P_6_9 + 2'P_6_10 + P_6_11 + P_6_12 + P_7_5 + P_7_6 + 2'P_7_7 + 2'P_7_8 + 3'P_7_9 + 2'P_7_10 + 2'P_7_11 + P_7_12 + P_7_13 + P_8_4 + P_8_5 + 2'P_8_6 + 2'P_8_7 + 3'P_8_8 + 3'P_8_9 + 3'P_8_10 + 2'P_8_11 + 2'P_8_12 + P_8_13 + P_8_14 + P_9_3 + P_9_4 + 2'P_9_5 + 2'P_9_6 + 3'P_9_7 + 3'P_9_8 + 4'P_9_9 + 3'P_9_10 + 3'P_9_11 + 2'P_9_12 + 2'P_9_13 + P_9_14 + P_9_15 + P_10_2 + P_10_3 + 2'P_10_4 + 2'P_10_5 + 3'P_10_6 + 3'P_10_7 + 4'P_10_8 + 4'P_10_9 + 4'P_10_10 + 3'P_10_11 + 3'P_10_12 + 2'P_10_13 + 2'P_10_14 + P_10_15 + P_10_16 + P_11_3 + P_11_4 + 2'P_11_5 + 2'P_11_6 + 3'P_11_7 + 3'P_11_8 + 4'P_11_9 + 3'P_11_10 + 3'P_11_11 + 2'P_11_12 + 2'P_11_13 + P_11_14 + P_11_15 + -1'P_11_18 + P_12_4 + P_12_5 + 2'P_12_6 + 2'P_12_7 + 3'P_12_8 + 3'P_12_9 + 3'P_12_10 + 2'P_12_11 + 2'P_12_12 + P_12_13 + P_12_14 + -1'P_12_17 + P_13_5 + P_13_6 + 2'P_13_7 + 2'P_13_8 + 3'P_13_9 + 2'P_13_10 + 2'P_13_11 + P_13_12 + P_13_13 + -1'P_13_16 + P_14_6 + P_14_7 + 2'P_14_8 + 2'P_14_9 + 2'P_14_10 + P_14_11 + P_14_12 + -1'P_14_15 + P_15_7 + P_15_8 + 2'P_15_9 + P_15_10 + P_15_11 + -1'P_15_14 + P_16_8 + P_16_9 + P_16_10 + -1'P_16_13 + P_17_9 + -1'P_17_12 + -1'P_18_11 + -1'P_19_10 + -1'cX_11 + -2'cX_12 + -3'cX_13 + -4'cX_14 + -5'cX_15 + -6'cX_16 + -7'cX_17 + -8'cX_18 + -9'cX_19 + -1'cY_10 + -2'cY_11 + -3'cY_12 + -4'cY_13 + -5'cY_14 + -6'cY_15 + -7'cY_16 + -8'cY_17 + -9'cY_18 + -10'cY_19 + 6'L_0 + 5'L_1 + 5'L_2 + 4'L_3 + 4'L_4 + 3'L_5 + 3'L_6 + 2'L_7 + 2'L_8 + L_9 + L_10 + L_30 + L_31 + 2'L_32 + 2'L_33 + 3'L_34 + 3'L_35 + 4'L_36 + 4'L_37 + 5'L_38 + R_13 + R_14 + 2'R_15 + 2'R_16 + 3'R_17 + 3'R_18 + 4'R_19 + 4'R_20 + 5'R_21 + 5'R_22 + 6'R_23 + 6'R_24 + 7'R_25 + 7'R_26 + 8'R_27 + 8'R_28 + 9'R_29 + 9'R_30 + 11'R_31 + 12'R_32 + 13'R_33 + 14'R_34 + 15'R_35 + 16'R_36 + 17'R_37 + 18'R_38 + 19'R_39 = 186
invariant :P_19_0 + L_38 = 1
invariant :P_1_7 + -1'P_3_6 + -1'P_3_7 + -1'P_3_8 + -1'P_4_5 + -2'P_4_6 + -2'P_4_7 + -2'P_4_8 + -1'P_4_9 + -1'P_5_4 + -2'P_5_5 + -3'P_5_6 + -3'P_5_7 + -3'P_5_8 + -2'P_5_9 + -1'P_5_10 + -1'P_6_3 + -2'P_6_4 + -3'P_6_5 + -4'P_6_6 + -4'P_6_7 + -4'P_6_8 + -3'P_6_9 + -2'P_6_10 + -1'P_6_11 + -1'P_7_2 + -2'P_7_3 + -3'P_7_4 + -4'P_7_5 + -5'P_7_6 + -5'P_7_7 + -5'P_7_8 + -4'P_7_9 + -3'P_7_10 + -2'P_7_11 + -1'P_7_12 + -1'P_8_2 + -2'P_8_3 + -3'P_8_4 + -4'P_8_5 + -5'P_8_6 + -5'P_8_7 + -5'P_8_8 + -4'P_8_9 + -3'P_8_10 + -2'P_8_11 + -1'P_8_12 + P_8_14 + P_8_15 + P_8_16 + P_8_17 + P_8_18 + -1'P_9_3 + -2'P_9_4 + -3'P_9_5 + -4'P_9_6 + -4'P_9_7 + -4'P_9_8 + -3'P_9_9 + -2'P_9_10 + -1'P_9_11 + P_9_13 + 2'P_9_14 + 3'P_9_15 + 3'P_9_16 + 3'P_9_17 + 2'P_9_18 + -1'P_10_4 + -2'P_10_5 + -3'P_10_6 + -3'P_10_7 + -3'P_10_8 + -2'P_10_9 + -1'P_10_10 + P_10_12 + 2'P_10_13 + 3'P_10_14 + 4'P_10_15 + 5'P_10_16 + 4'P_10_17 + 2'P_10_18 + -1'P_11_5 + -2'P_11_6 + -2'P_11_7 + -2'P_11_8 + -1'P_11_9 + P_11_11 + 2'P_11_12 + 3'P_11_13 + 4'P_11_14 + 5'P_11_15 + 5'P_11_16 + 4'P_11_17 + 2'P_11_18 + -1'P_12_6 + -1'P_12_7 + -1'P_12_8 + P_12_10 + 2'P_12_11 + 3'P_12_12 + 4'P_12_13 + 5'P_12_14 + 5'P_12_15 + 4'P_12_16 + 3'P_12_17 + 2'P_12_18 + P_13_9 + 2'P_13_10 + 3'P_13_11 + 4'P_13_12 + 5'P_13_13 + 5'P_13_14 + 4'P_13_15 + 3'P_13_16 + 2'P_13_17 + P_13_18 + P_14_7 + P_14_8 + 2'P_14_9 + 3'P_14_10 + 4'P_14_11 + 5'P_14_12 + 5'P_14_13 + 4'P_14_14 + 3'P_14_15 + 2'P_14_16 + P_14_17 + P_15_7 + 2'P_15_8 + 3'P_15_9 + 4'P_15_10 + 5'P_15_11 + 5'P_15_12 + 4'P_15_13 + 3'P_15_14 + 2'P_15_15 + P_15_16 + P_16_7 + 2'P_16_8 + 4'P_16_9 + 5'P_16_10 + 5'P_16_11 + 4'P_16_12 + 3'P_16_13 + 2'P_16_14 + P_16_15 + P_17_7 + 2'P_17_8 + 4'P_17_9 + 5'P_17_10 + 4'P_17_11 + 3'P_17_12 + 2'P_17_13 + P_17_14 + P_18_7 + 2'P_18_8 + 3'P_18_9 + 3'P_18_10 + 3'P_18_11 + 2'P_18_12 + P_18_13 + P_19_7 + P_19_8 + P_19_9 + P_19_10 + P_19_11 + P_19_12 + cX_8 + 3'cX_9 + 5'cX_10 + 7'cX_11 + 9'cX_12 + 11'cX_13 + 13'cX_14 + 15'cX_15 + 17'cX_16 + 19'cX_17 + 21'cX_18 + 23'cX_19 + cY_7 + 2'cY_8 + 4'cY_9 + 6'cY_10 + 8'cY_11 + 10'cY_12 + 12'cY_13 + 14'cY_14 + 16'cY_15 + 18'cY_16 + 20'cY_17 + 22'cY_18 + 24'cY_19 + -13'L_0 + -12'L_1 + -11'L_2 + -10'L_3 + -9'L_4 + -8'L_5 + -7'L_6 + -6'L_7 + -5'L_8 + -4'L_9 + -3'L_10 + -2'L_11 + -1'L_12 + -1'L_27 + -2'L_28 + -3'L_29 + -4'L_30 + -5'L_31 + -6'L_32 + -7'L_33 + -8'L_34 + -9'L_35 + -10'L_36 + -11'L_37 + -12'L_38 + -1'R_10 + -2'R_11 + -3'R_12 + -4'R_13 + -5'R_14 + -6'R_15 + -7'R_16 + -8'R_17 + -9'R_18 + -10'R_19 + -11'R_20 + -12'R_21 + -13'R_22 + -14'R_23 + -15'R_24 + -16'R_25 + -17'R_26 + -18'R_27 + -20'R_28 + -23'R_29 + -26'R_30 + -29'R_31 + -32'R_32 + -35'R_33 + -37'R_34 + -39'R_35 + -41'R_36 + -43'R_37 + -45'R_38 + -47'R_39 = -456
invariant :P_9_19 + P_10_18 + P_11_17 + P_12_16 + P_13_15 + P_14_14 + P_15_13 + P_16_12 + P_17_11 + P_18_10 + P_19_9 + R_29 = 1
invariant :P_0_6 + P_3_6 + P_4_5 + P_4_6 + P_4_7 + P_5_4 + P_5_5 + 2'P_5_6 + P_5_7 + P_5_8 + P_6_3 + P_6_4 + 2'P_6_5 + 2'P_6_6 + 2'P_6_7 + P_6_8 + P_6_9 + P_7_2 + P_7_3 + 2'P_7_4 + 2'P_7_5 + 3'P_7_6 + 2'P_7_7 + 2'P_7_8 + P_7_9 + P_7_10 + P_8_3 + P_8_4 + 2'P_8_5 + 2'P_8_6 + 2'P_8_7 + P_8_8 + P_8_9 + -1'P_8_12 + -1'P_8_13 + -1'P_8_14 + -1'P_8_15 + -1'P_8_16 + -1'P_8_17 + -1'P_8_18 + P_9_4 + P_9_5 + 2'P_9_6 + P_9_7 + P_9_8 + -1'P_9_11 + -1'P_9_12 + -2'P_9_13 + -2'P_9_14 + -2'P_9_15 + -2'P_9_16 + -2'P_9_17 + -1'P_9_18 + P_10_5 + P_10_6 + P_10_7 + -1'P_10_10 + -1'P_10_11 + -2'P_10_12 + -2'P_10_13 + -3'P_10_14 + -3'P_10_15 + -3'P_10_16 + -2'P_10_17 + -1'P_10_18 + P_11_6 + -1'P_11_9 + -1'P_11_10 + -2'P_11_11 + -2'P_11_12 + -3'P_11_13 + -3'P_11_14 + -4'P_11_15 + -3'P_11_16 + -2'P_11_17 + -1'P_11_18 + -1'P_12_8 + -1'P_12_9 + -2'P_12_10 + -2'P_12_11 + -3'P_12_12 + -3'P_12_13 + -4'P_12_14 + -3'P_12_15 + -3'P_12_16 + -2'P_12_17 + -1'P_12_18 + -1'P_13_7 + -1'P_13_8 + -2'P_13_9 + -2'P_13_10 + -3'P_13_11 + -3'P_13_12 + -4'P_13_13 + -3'P_13_14 + -3'P_13_15 + -2'P_13_16 + -2'P_13_17 + -1'P_13_18 + -1'P_14_7 + -2'P_14_8 + -2'P_14_9 + -3'P_14_10 + -3'P_14_11 + -4'P_14_12 + -3'P_14_13 + -3'P_14_14 + -2'P_14_15 + -2'P_14_16 + -1'P_14_17 + -1'P_14_18 + -1'P_15_7 + -2'P_15_8 + -3'P_15_9 + -3'P_15_10 + -4'P_15_11 + -3'P_15_12 + -3'P_15_13 + -2'P_15_14 + -2'P_15_15 + -1'P_15_16 + -1'P_15_17 + -1'P_16_7 + -2'P_16_8 + -3'P_16_9 + -4'P_16_10 + -3'P_16_11 + -3'P_16_12 + -2'P_16_13 + -2'P_16_14 + -1'P_16_15 + -1'P_16_16 + -1'P_17_7 + -2'P_17_8 + -3'P_17_9 + -3'P_17_10 + -3'P_17_11 + -2'P_17_12 + -2'P_17_13 + -1'P_17_14 + -1'P_17_15 + -1'P_18_7 + -2'P_18_8 + -2'P_18_9 + -2'P_18_10 + -2'P_18_11 + -2'P_18_12 + -1'P_18_13 + -1'P_18_14 + -1'P_19_7 + -1'P_19_8 + -1'P_19_9 + -1'P_19_10 + -1'P_19_11 + -1'P_19_12 + -1'P_19_13 + -1'cX_8 + -2'cX_9 + -3'cX_10 + -4'cX_11 + -5'cX_12 + -6'cX_13 + -7'cX_14 + -8'cX_15 + -9'cX_16 + -10'cX_17 + -11'cX_18 + -12'cX_19 + -1'cY_7 + -2'cY_8 + -3'cY_9 + -4'cY_10 + -5'cY_11 + -6'cY_12 + -7'cY_13 + -8'cY_14 + -9'cY_15 + -10'cY_16 + -11'cY_17 + -12'cY_18 + -13'cY_19 + 7'L_0 + 7'L_1 + 6'L_2 + 6'L_3 + 5'L_4 + 5'L_5 + 4'L_6 + 4'L_7 + 3'L_8 + 3'L_9 + 2'L_10 + 2'L_11 + L_12 + L_13 + L_27 + L_28 + 2'L_29 + 2'L_30 + 3'L_31 + 3'L_32 + 4'L_33 + 4'L_34 + 5'L_35 + 5'L_36 + 6'L_37 + 6'L_38 + R_10 + R_11 + 2'R_12 + 2'R_13 + 3'R_14 + 3'R_15 + 4'R_16 + 4'R_17 + 5'R_18 + 5'R_19 + 6'R_20 + 6'R_21 + 7'R_22 + 7'R_23 + 8'R_24 + 8'R_25 + 9'R_26 + 9'R_27 + 11'R_28 + 12'R_29 + 14'R_30 + 15'R_31 + 17'R_32 + 18'R_33 + 20'R_34 + 21'R_35 + 22'R_36 + 23'R_37 + 24'R_38 + 25'R_39 = 241
invariant :P_1_5 + -1'P_3_4 + -1'P_3_5 + -1'P_3_6 + -1'P_4_3 + -2'P_4_4 + -2'P_4_5 + -2'P_4_6 + -1'P_4_7 + -1'P_5_2 + -2'P_5_3 + -3'P_5_4 + -3'P_5_5 + -3'P_5_6 + -2'P_5_7 + -1'P_5_8 + -1'P_6_2 + -2'P_6_3 + -3'P_6_4 + -3'P_6_5 + -3'P_6_6 + -2'P_6_7 + -1'P_6_8 + P_6_10 + P_6_11 + P_6_12 + P_6_13 + P_6_14 + P_6_15 + P_6_16 + P_6_17 + P_6_18 + -1'P_7_3 + -2'P_7_4 + -2'P_7_5 + -2'P_7_6 + -1'P_7_7 + P_7_9 + 2'P_7_10 + 3'P_7_11 + 3'P_7_12 + 3'P_7_13 + 3'P_7_14 + 3'P_7_15 + 3'P_7_16 + 3'P_7_17 + 2'P_7_18 + -1'P_8_4 + -1'P_8_5 + -1'P_8_6 + P_8_8 + 2'P_8_9 + 3'P_8_10 + 4'P_8_11 + 5'P_8_12 + 5'P_8_13 + 5'P_8_14 + 5'P_8_15 + 5'P_8_16 + 4'P_8_17 + 2'P_8_18 + P_9_7 + 2'P_9_8 + 3'P_9_9 + 4'P_9_10 + 5'P_9_11 + 6'P_9_12 + 7'P_9_13 + 7'P_9_14 + 7'P_9_15 + 6'P_9_16 + 4'P_9_17 + 2'P_9_18 + P_10_5 + P_10_6 + 2'P_10_7 + 3'P_10_8 + 4'P_10_9 + 5'P_10_10 + 6'P_10_11 + 7'P_10_12 + 8'P_10_13 + 9'P_10_14 + 8'P_10_15 + 6'P_10_16 + 4'P_10_17 + 2'P_10_18 + P_11_5 + 2'P_11_6 + 3'P_11_7 + 4'P_11_8 + 5'P_11_9 + 6'P_11_10 + 7'P_11_11 + 8'P_11_12 + 9'P_11_13 + 9'P_11_14 + 8'P_11_15 + 6'P_11_16 + 4'P_11_17 + 2'P_11_18 + P_12_5 + 2'P_12_6 + 4'P_12_7 + 5'P_12_8 + 6'P_12_9 + 7'P_12_10 + 8'P_12_11 + 9'P_12_12 + 9'P_12_13 + 8'P_12_14 + 7'P_12_15 + 6'P_12_16 + 4'P_12_17 + 2'P_12_18 + P_13_5 + 2'P_13_6 + 4'P_13_7 + 6'P_13_8 + 7'P_13_9 + 8'P_13_10 + 9'P_13_11 + 9'P_13_12 + 8'P_13_13 + 7'P_13_14 + 6'P_13_15 + 5'P_13_16 + 4'P_13_17 + 2'P_13_18 + P_14_5 + 2'P_14_6 + 4'P_14_7 + 6'P_14_8 + 8'P_14_9 + 9'P_14_10 + 9'P_14_11 + 8'P_14_12 + 7'P_14_13 + 6'P_14_14 + 5'P_14_15 + 4'P_14_16 + 3'P_14_17 + 2'P_14_18 + P_15_5 + 2'P_15_6 + 4'P_15_7 + 6'P_15_8 + 8'P_15_9 + 9'P_15_10 + 8'P_15_11 + 7'P_15_12 + 6'P_15_13 + 5'P_15_14 + 4'P_15_15 + 3'P_15_16 + 2'P_15_17 + P_15_18 + P_16_5 + 2'P_16_6 + 4'P_16_7 + 6'P_16_8 + 7'P_16_9 + 7'P_16_10 + 7'P_16_11 + 6'P_16_12 + 5'P_16_13 + 4'P_16_14 + 3'P_16_15 + 2'P_16_16 + P_16_17 + P_17_5 + 2'P_17_6 + 4'P_17_7 + 5'P_17_8 + 5'P_17_9 + 5'P_17_10 + 5'P_17_11 + 5'P_17_12 + 4'P_17_13 + 3'P_17_14 + 2'P_17_15 + P_17_16 + P_18_5 + 2'P_18_6 + 3'P_18_7 + 3'P_18_8 + 3'P_18_9 + 3'P_18_10 + 3'P_18_11 + 3'P_18_12 + 3'P_18_13 + 2'P_18_14 + P_18_15 + P_19_5 + P_19_6 + P_19_7 + P_19_8 + P_19_9 + P_19_10 + P_19_11 + P_19_12 + P_19_13 + P_19_14 + cX_6 + 3'cX_7 + 5'cX_8 + 7'cX_9 + 9'cX_10 + 11'cX_11 + 13'cX_12 + 15'cX_13 + 17'cX_14 + 19'cX_15 + 21'cX_16 + 23'cX_17 + 25'cX_18 + 27'cX_19 + cY_5 + 2'cY_6 + 4'cY_7 + 6'cY_8 + 8'cY_9 + 10'cY_10 + 12'cY_11 + 14'cY_12 + 16'cY_13 + 18'cY_14 + 20'cY_15 + 22'cY_16 + 24'cY_17 + 26'cY_18 + 28'cY_19 + -15'L_0 + -14'L_1 + -13'L_2 + -12'L_3 + -11'L_4 + -10'L_5 + -9'L_6 + -8'L_7 + -7'L_8 + -6'L_9 + -5'L_10 + -4'L_11 + -3'L_12 + -2'L_13 + -1'L_14 + -1'L_25 + -2'L_26 + -3'L_27 + -4'L_28 + -5'L_29 + -6'L_30 + -7'L_31 + -8'L_32 + -9'L_33 + -10'L_34 + -11'L_35 + -12'L_36 + -13'L_37 + -14'L_38 + -1'R_8 + -2'R_9 + -3'R_10 + -4'R_11 + -5'R_12 + -6'R_13 + -7'R_14 + -8'R_15 + -9'R_16 + -10'R_17 + -11'R_18 + -12'R_19 + -13'R_20 + -14'R_21 + -15'R_22 + -16'R_23 + -17'R_24 + -18'R_25 + -20'R_26 + -23'R_27 + -26'R_28 + -29'R_29 + -32'R_30 + -35'R_31 + -38'R_32 + -41'R_33 + -44'R_34 + -47'R_35 + -49'R_36 + -51'R_37 + -53'R_38 + -55'R_39 = -532
invariant :P_2_5 + P_3_4 + P_3_5 + P_3_6 + P_4_3 + P_4_4 + 2'P_4_5 + P_4_6 + P_4_7 + P_5_2 + P_5_3 + 2'P_5_4 + 2'P_5_5 + 2'P_5_6 + P_5_7 + P_5_8 + P_6_3 + P_6_4 + 2'P_6_5 + P_6_6 + P_6_7 + -1'P_6_10 + -1'P_6_11 + -1'P_6_12 + -1'P_6_13 + -1'P_6_14 + -1'P_6_15 + -1'P_6_16 + -1'P_6_17 + -1'P_6_18 + P_7_4 + P_7_5 + P_7_6 + -1'P_7_9 + -1'P_7_10 + -2'P_7_11 + -2'P_7_12 + -2'P_7_13 + -2'P_7_14 + -2'P_7_15 + -2'P_7_16 + -2'P_7_17 + -1'P_7_18 + P_8_5 + -1'P_8_8 + -1'P_8_9 + -2'P_8_10 + -2'P_8_11 + -3'P_8_12 + -3'P_8_13 + -3'P_8_14 + -3'P_8_15 + -3'P_8_16 + -2'P_8_17 + -1'P_8_18 + -1'P_9_7 + -1'P_9_8 + -2'P_9_9 + -2'P_9_10 + -3'P_9_11 + -3'P_9_12 + -4'P_9_13 + -4'P_9_14 + -4'P_9_15 + -3'P_9_16 + -2'P_9_17 + -1'P_9_18 + -1'P_10_6 + -1'P_10_7 + -2'P_10_8 + -2'P_10_9 + -3'P_10_10 + -3'P_10_11 + -4'P_10_12 + -4'P_10_13 + -5'P_10_14 + -4'P_10_15 + -3'P_10_16 + -2'P_10_17 + -1'P_10_18 + -1'P_11_6 + -2'P_11_7 + -2'P_11_8 + -3'P_11_9 + -3'P_11_10 + -4'P_11_11 + -4'P_11_12 + -5'P_11_13 + -4'P_11_14 + -4'P_11_15 + -3'P_11_16 + -2'P_11_17 + -1'P_11_18 + -1'P_12_6 + -2'P_12_7 + -3'P_12_8 + -3'P_12_9 + -4'P_12_10 + -4'P_12_11 + -5'P_12_12 + -4'P_12_13 + -4'P_12_14 + -3'P_12_15 + -3'P_12_16 + -2'P_12_17 + -1'P_12_18 + -1'P_13_6 + -2'P_13_7 + -3'P_13_8 + -4'P_13_9 + -4'P_13_10 + -5'P_13_11 + -4'P_13_12 + -4'P_13_13 + -3'P_13_14 + -3'P_13_15 + -2'P_13_16 + -2'P_13_17 + -1'P_13_18 + -1'P_14_6 + -2'P_14_7 + -3'P_14_8 + -4'P_14_9 + -5'P_14_10 + -4'P_14_11 + -4'P_14_12 + -3'P_14_13 + -3'P_14_14 + -2'P_14_15 + -2'P_14_16 + -1'P_14_17 + -1'P_14_18 + -1'P_15_6 + -2'P_15_7 + -3'P_15_8 + -4'P_15_9 + -4'P_15_10 + -4'P_15_11 + -3'P_15_12 + -3'P_15_13 + -2'P_15_14 + -2'P_15_15 + -1'P_15_16 + -1'P_15_17 + -1'P_16_6 + -2'P_16_7 + -3'P_16_8 + -3'P_16_9 + -3'P_16_10 + -3'P_16_11 + -3'P_16_12 + -2'P_16_13 + -2'P_16_14 + -1'P_16_15 + -1'P_16_16 + -1'P_17_6 + -2'P_17_7 + -2'P_17_8 + -2'P_17_9 + -2'P_17_10 + -2'P_17_11 + -2'P_17_12 + -2'P_17_13 + -1'P_17_14 + -1'P_17_15 + -1'P_18_6 + -1'P_18_7 + -1'P_18_8 + -1'P_18_9 + -1'P_18_10 + -1'P_18_11 + -1'P_18_12 + -1'P_18_13 + -1'P_18_14 + -1'cX_6 + -2'cX_7 + -3'cX_8 + -4'cX_9 + -5'cX_10 + -6'cX_11 + -7'cX_12 + -8'cX_13 + -9'cX_14 + -10'cX_15 + -11'cX_16 + -12'cX_17 + -13'cX_18 + -14'cX_19 + -1'cY_6 + -2'cY_7 + -3'cY_8 + -4'cY_9 + -5'cY_10 + -6'cY_11 + -7'cY_12 + -8'cY_13 + -9'cY_14 + -10'cY_15 + -11'cY_16 + -12'cY_17 + -13'cY_18 + -14'cY_19 + 7'L_0 + 7'L_1 + 6'L_2 + 6'L_3 + 5'L_4 + 5'L_5 + 4'L_6 + 4'L_7 + 3'L_8 + 3'L_9 + 2'L_10 + 2'L_11 + L_12 + L_13 + L_25 + L_26 + 2'L_27 + 2'L_28 + 3'L_29 + 3'L_30 + 4'L_31 + 4'L_32 + 5'L_33 + 5'L_34 + 6'L_35 + 6'L_36 + 7'L_37 + 7'L_38 + R_8 + R_9 + 2'R_10 + 2'R_11 + 3'R_12 + 3'R_13 + 4'R_14 + 4'R_15 + 5'R_16 + 5'R_17 + 6'R_18 + 6'R_19 + 7'R_20 + 7'R_21 + 8'R_22 + 8'R_23 + 9'R_24 + 9'R_25 + 11'R_26 + 12'R_27 + 14'R_28 + 15'R_29 + 17'R_30 + 18'R_31 + 20'R_32 + 21'R_33 + 23'R_34 + 24'R_35 + 25'R_36 + 26'R_37 + 27'R_38 + 28'R_39 = 273
invariant :P_1_10 + -1'P_3_9 + -1'P_3_10 + -1'P_3_11 + -1'P_4_8 + -2'P_4_9 + -2'P_4_10 + -2'P_4_11 + -1'P_4_12 + -1'P_5_7 + -2'P_5_8 + -3'P_5_9 + -3'P_5_10 + -3'P_5_11 + -2'P_5_12 + -1'P_5_13 + -1'P_6_6 + -2'P_6_7 + -3'P_6_8 + -4'P_6_9 + -4'P_6_10 + -4'P_6_11 + -3'P_6_12 + -2'P_6_13 + -1'P_6_14 + -1'P_7_5 + -2'P_7_6 + -3'P_7_7 + -4'P_7_8 + -5'P_7_9 + -5'P_7_10 + -5'P_7_11 + -4'P_7_12 + -3'P_7_13 + -2'P_7_14 + -1'P_7_15 + -1'P_8_4 + -2'P_8_5 + -3'P_8_6 + -4'P_8_7 + -5'P_8_8 + -6'P_8_9 + -6'P_8_10 + -6'P_8_11 + -5'P_8_12 + -4'P_8_13 + -3'P_8_14 + -2'P_8_15 + -1'P_8_16 + -1'P_9_3 + -2'P_9_4 + -3'P_9_5 + -4'P_9_6 + -5'P_9_7 + -6'P_9_8 + -7'P_9_9 + -7'P_9_10 + -7'P_9_11 + -6'P_9_12 + -5'P_9_13 + -4'P_9_14 + -3'P_9_15 + -2'P_9_16 + -1'P_9_17 + -1'P_10_2 + -2'P_10_3 + -3'P_10_4 + -4'P_10_5 + -5'P_10_6 + -6'P_10_7 + -7'P_10_8 + -8'P_10_9 + -8'P_10_10 + -8'P_10_11 + -7'P_10_12 + -6'P_10_13 + -5'P_10_14 + -4'P_10_15 + -3'P_10_16 + -2'P_10_17 + -1'P_10_18 + -1'P_11_2 + -2'P_11_3 + -3'P_11_4 + -4'P_11_5 + -5'P_11_6 + -6'P_11_7 + -7'P_11_8 + -8'P_11_9 + -8'P_11_10 + -8'P_11_11 + -7'P_11_12 + -6'P_11_13 + -5'P_11_14 + -4'P_11_15 + -3'P_11_16 + -2'P_11_17 + -1'P_11_18 + -1'P_12_3 + -2'P_12_4 + -3'P_12_5 + -4'P_12_6 + -5'P_12_7 + -6'P_12_8 + -7'P_12_9 + -7'P_12_10 + -7'P_12_11 + -6'P_12_12 + -5'P_12_13 + -4'P_12_14 + -3'P_12_15 + -2'P_12_16 + -1'P_12_17 + -1'P_13_4 + -2'P_13_5 + -3'P_13_6 + -4'P_13_7 + -5'P_13_8 + -6'P_13_9 + -6'P_13_10 + -6'P_13_11 + -5'P_13_12 + -4'P_13_13 + -3'P_13_14 + -2'P_13_15 + -1'P_13_16 + -1'P_14_5 + -2'P_14_6 + -3'P_14_7 + -4'P_14_8 + -5'P_14_9 + -5'P_14_10 + -5'P_14_11 + -4'P_14_12 + -3'P_14_13 + -2'P_14_14 + -1'P_14_15 + -1'P_15_6 + -2'P_15_7 + -3'P_15_8 + -4'P_15_9 + -4'P_15_10 + -4'P_15_11 + -3'P_15_12 + -2'P_15_13 + -1'P_15_14 + -1'P_16_7 + -2'P_16_8 + -3'P_16_9 + -3'P_16_10 + -3'P_16_11 + -2'P_16_12 + -1'P_16_13 + -1'P_17_8 + -2'P_17_9 + -2'P_17_10 + -2'P_17_11 + -1'P_17_12 + -1'P_18_9 + -1'P_18_10 + -1'P_18_11 + cX_11 + 3'cX_12 + 5'cX_13 + 7'cX_14 + 9'cX_15 + 11'cX_16 + 13'cX_17 + 15'cX_18 + 17'cX_19 + cY_10 + 2'cY_11 + 4'cY_12 + 6'cY_13 + 8'cY_14 + 10'cY_15 + 12'cY_16 + 14'cY_17 + 16'cY_18 + 18'cY_19 + -10'L_0 + -9'L_1 + -8'L_2 + -7'L_3 + -6'L_4 + -5'L_5 + -4'L_6 + -3'L_7 + -2'L_8 + -1'L_9 + -1'L_30 + -2'L_31 + -3'L_32 + -4'L_33 + -5'L_34 + -6'L_35 + -7'L_36 + -8'L_37 + -9'L_38 + -1'R_13 + -2'R_14 + -3'R_15 + -4'R_16 + -5'R_17 + -6'R_18 + -7'R_19 + -8'R_20 + -9'R_21 + -10'R_22 + -11'R_23 + -12'R_24 + -13'R_25 + -14'R_26 + -15'R_27 + -16'R_28 + -17'R_29 + -18'R_30 + -19'R_31 + -21'R_32 + -23'R_33 + -25'R_34 + -27'R_35 + -29'R_36 + -31'R_37 + -33'R_38 + -35'R_39 = -342
invariant :P_2_15 + P_3_14 + P_3_15 + P_3_16 + P_4_13 + P_4_14 + 2'P_4_15 + P_4_16 + P_4_17 + P_5_12 + P_5_13 + 2'P_5_14 + 2'P_5_15 + 2'P_5_16 + P_5_17 + P_5_18 + P_6_11 + P_6_12 + 2'P_6_13 + 2'P_6_14 + 3'P_6_15 + 2'P_6_16 + 2'P_6_17 + P_6_18 + P_7_10 + P_7_11 + 2'P_7_12 + 2'P_7_13 + 3'P_7_14 + 3'P_7_15 + 3'P_7_16 + 2'P_7_17 + P_7_18 + P_8_9 + P_8_10 + 2'P_8_11 + 2'P_8_12 + 3'P_8_13 + 3'P_8_14 + 4'P_8_15 + 3'P_8_16 + 2'P_8_17 + P_8_18 + P_9_8 + P_9_9 + 2'P_9_10 + 2'P_9_11 + 3'P_9_12 + 3'P_9_13 + 4'P_9_14 + 4'P_9_15 + 3'P_9_16 + 2'P_9_17 + P_9_18 + P_10_7 + P_10_8 + 2'P_10_9 + 2'P_10_10 + 3'P_10_11 + 3'P_10_12 + 4'P_10_13 + 4'P_10_14 + 4'P_10_15 + 3'P_10_16 + 2'P_10_17 + P_10_18 + P_11_6 + P_11_7 + 2'P_11_8 + 2'P_11_9 + 3'P_11_10 + 3'P_11_11 + 4'P_11_12 + 4'P_11_13 + 4'P_11_14 + 4'P_11_15 + 3'P_11_16 + 2'P_11_17 + P_11_18 + P_12_5 + P_12_6 + 2'P_12_7 + 2'P_12_8 + 3'P_12_9 + 3'P_12_10 + 4'P_12_11 + 4'P_12_12 + 4'P_12_13 + 4'P_12_14 + 4'P_12_15 + 3'P_12_16 + 2'P_12_17 + P_12_18 + P_13_4 + P_13_5 + 2'P_13_6 + 2'P_13_7 + 3'P_13_8 + 3'P_13_9 + 4'P_13_10 + 4'P_13_11 + 4'P_13_12 + 4'P_13_13 + 4'P_13_14 + 4'P_13_15 + 3'P_13_16 + 2'P_13_17 + P_13_18 + P_14_3 + P_14_4 + 2'P_14_5 + 2'P_14_6 + 3'P_14_7 + 3'P_14_8 + 4'P_14_9 + 4'P_14_10 + 4'P_14_11 + 4'P_14_12 + 4'P_14_13 + 4'P_14_14 + 4'P_14_15 + 3'P_14_16 + 2'P_14_17 + P_14_18 + P_15_2 + P_15_3 + 2'P_15_4 + 2'P_15_5 + 3'P_15_6 + 3'P_15_7 + 4'P_15_8 + 4'P_15_9 + 4'P_15_10 + 4'P_15_11 + 4'P_15_12 + 4'P_15_13 + 4'P_15_14 + 4'P_15_15 + 3'P_15_16 + 2'P_15_17 + P_15_18 + P_16_3 + P_16_4 + 2'P_16_5 + 2'P_16_6 + 3'P_16_7 + 3'P_16_8 + 3'P_16_9 + 3'P_16_10 + 3'P_16_11 + 3'P_16_12 + 3'P_16_13 + 3'P_16_14 + 3'P_16_15 + 2'P_16_16 + P_16_17 + P_17_4 + P_17_5 + 2'P_17_6 + 2'P_17_7 + 2'P_17_8 + 2'P_17_9 + 2'P_17_10 + 2'P_17_11 + 2'P_17_12 + 2'P_17_13 + 2'P_17_14 + 2'P_17_15 + P_17_16 + P_18_5 + P_18_6 + P_18_7 + P_18_8 + P_18_9 + P_18_10 + P_18_11 + P_18_12 + P_18_13 + P_18_14 + P_18_15 + -1'cX_16 + -2'cX_17 + -3'cX_18 + -4'cX_19 + -1'cY_16 + -2'cY_17 + -3'cY_18 + -4'cY_19 + 2'L_0 + 2'L_1 + L_2 + L_3 + L_35 + L_36 + 2'L_37 + 2'L_38 + R_18 + R_19 + 2'R_20 + 2'R_21 + 3'R_22 + 3'R_23 + 4'R_24 + 4'R_25 + 4'R_26 + 4'R_27 + 4'R_28 + 4'R_29 + 4'R_30 + 4'R_31 + 4'R_32 + 4'R_33 + 4'R_34 + 4'R_35 + 5'R_36 + 6'R_37 + 7'R_38 + 8'R_39 = 78
invariant :P_6_19 + P_7_18 + P_8_17 + P_9_16 + P_10_15 + P_11_14 + P_12_13 + P_13_12 + P_14_11 + P_15_10 + P_16_9 + P_17_8 + P_18_7 + P_19_6 + R_26 = 1
invariant :cY_1 + 2'cY_2 + 3'cY_3 + 4'cY_4 + 5'cY_5 + 6'cY_6 + 7'cY_7 + 8'cY_8 + 9'cY_9 + 10'cY_10 + 11'cY_11 + 12'cY_12 + 13'cY_13 + 14'cY_14 + 15'cY_15 + 16'cY_16 + 17'cY_17 + 18'cY_18 + 19'cY_19 + -9'L_0 + -9'L_1 + -8'L_2 + -8'L_3 + -7'L_4 + -7'L_5 + -6'L_6 + -6'L_7 + -5'L_8 + -5'L_9 + -4'L_10 + -4'L_11 + -3'L_12 + -3'L_13 + -2'L_14 + -2'L_15 + -1'L_16 + -1'L_17 + L_20 + L_21 + 2'L_22 + 2'L_23 + 3'L_24 + 3'L_25 + 4'L_26 + 4'L_27 + 5'L_28 + 5'L_29 + 6'L_30 + 6'L_31 + 7'L_32 + 7'L_33 + 8'L_34 + 8'L_35 + 9'L_36 + 9'L_37 + 10'L_38 + -1'R_2 + -1'R_3 + -2'R_4 + -2'R_5 + -3'R_6 + -3'R_7 + -4'R_8 + -4'R_9 + -5'R_10 + -5'R_11 + -6'R_12 + -6'R_13 + -7'R_14 + -7'R_15 + -8'R_16 + -8'R_17 + -9'R_18 + -9'R_19 + -10'R_20 + -10'R_21 + -11'R_22 + -11'R_23 + -12'R_24 + -12'R_25 + -13'R_26 + -13'R_27 + -14'R_28 + -14'R_29 + -15'R_30 + -15'R_31 + -16'R_32 + -16'R_33 + -17'R_34 + -17'R_35 + -18'R_36 + -18'R_37 + -19'R_38 + -19'R_39 = -180
invariant :P_0_12 + P_3_12 + P_4_11 + P_4_12 + P_4_13 + P_5_10 + P_5_11 + 2'P_5_12 + P_5_13 + P_5_14 + P_6_9 + P_6_10 + 2'P_6_11 + 2'P_6_12 + 2'P_6_13 + P_6_14 + P_6_15 + P_7_8 + P_7_9 + 2'P_7_10 + 2'P_7_11 + 3'P_7_12 + 2'P_7_13 + 2'P_7_14 + P_7_15 + P_7_16 + P_8_7 + P_8_8 + 2'P_8_9 + 2'P_8_10 + 3'P_8_11 + 3'P_8_12 + 3'P_8_13 + 2'P_8_14 + 2'P_8_15 + P_8_16 + P_8_17 + P_9_6 + P_9_7 + 2'P_9_8 + 2'P_9_9 + 3'P_9_10 + 3'P_9_11 + 4'P_9_12 + 3'P_9_13 + 3'P_9_14 + 2'P_9_15 + 2'P_9_16 + P_9_17 + P_9_18 + P_10_5 + P_10_6 + 2'P_10_7 + 2'P_10_8 + 3'P_10_9 + 3'P_10_10 + 4'P_10_11 + 4'P_10_12 + 4'P_10_13 + 3'P_10_14 + 3'P_10_15 + 2'P_10_16 + 2'P_10_17 + P_10_18 + P_11_4 + P_11_5 + 2'P_11_6 + 2'P_11_7 + 3'P_11_8 + 3'P_11_9 + 4'P_11_10 + 4'P_11_11 + 5'P_11_12 + 4'P_11_13 + 4'P_11_14 + 3'P_11_15 + 3'P_11_16 + 2'P_11_17 + P_11_18 + P_12_3 + P_12_4 + 2'P_12_5 + 2'P_12_6 + 3'P_12_7 + 3'P_12_8 + 4'P_12_9 + 4'P_12_10 + 5'P_12_11 + 5'P_12_12 + 5'P_12_13 + 4'P_12_14 + 4'P_12_15 + 3'P_12_16 + 2'P_12_17 + P_12_18 + P_13_2 + P_13_3 + 2'P_13_4 + 2'P_13_5 + 3'P_13_6 + 3'P_13_7 + 4'P_13_8 + 4'P_13_9 + 5'P_13_10 + 5'P_13_11 + 6'P_13_12 + 5'P_13_13 + 5'P_13_14 + 4'P_13_15 + 3'P_13_16 + 2'P_13_17 + P_13_18 + P_14_3 + P_14_4 + 2'P_14_5 + 2'P_14_6 + 3'P_14_7 + 3'P_14_8 + 4'P_14_9 + 4'P_14_10 + 5'P_14_11 + 5'P_14_12 + 5'P_14_13 + 4'P_14_14 + 3'P_14_15 + 2'P_14_16 + P_14_17 + P_15_4 + P_15_5 + 2'P_15_6 + 2'P_15_7 + 3'P_15_8 + 3'P_15_9 + 4'P_15_10 + 4'P_15_11 + 5'P_15_12 + 4'P_15_13 + 3'P_15_14 + 2'P_15_15 + P_15_16 + P_16_5 + P_16_6 + 2'P_16_7 + 2'P_16_8 + 3'P_16_9 + 3'P_16_10 + 4'P_16_11 + 4'P_16_12 + 3'P_16_13 + 2'P_16_14 + P_16_15 + P_17_6 + P_17_7 + 2'P_17_8 + 2'P_17_9 + 3'P_17_10 + 3'P_17_11 + 3'P_17_12 + 2'P_17_13 + P_17_14 + P_18_7 + P_18_8 + 2'P_18_9 + 2'P_18_10 + 2'P_18_11 + 2'P_18_12 + P_18_13 + P_19_8 + P_19_9 + P_19_10 + P_19_11 + P_19_12 + -1'cX_14 + -2'cX_15 + -3'cX_16 + -4'cX_17 + -5'cX_18 + -6'cX_19 + -1'cY_13 + -2'cY_14 + -3'cY_15 + -4'cY_16 + -5'cY_17 + -6'cY_18 + -7'cY_19 + 4'L_0 + 4'L_1 + 3'L_2 + 3'L_3 + 2'L_4 + 2'L_5 + L_6 + L_7 + L_33 + L_34 + 2'L_35 + 2'L_36 + 3'L_37 + 3'L_38 + R_16 + R_17 + 2'R_18 + 2'R_19 + 3'R_20 + 3'R_21 + 4'R_22 + 4'R_23 + 5'R_24 + 5'R_25 + 6'R_26 + 6'R_27 + 7'R_28 + 7'R_29 + 7'R_30 + 7'R_31 + 7'R_32 + 7'R_33 + 8'R_34 + 9'R_35 + 10'R_36 + 11'R_37 + 12'R_38 + 13'R_39 = 130
invariant :P_6_1 + P_6_2 + P_6_3 + P_6_4 + P_6_5 + P_6_6 + P_6_7 + P_6_8 + P_6_9 + P_6_10 + P_6_11 + P_6_12 + P_6_13 + P_6_14 + P_6_15 + P_6_16 + P_6_17 + P_6_18 + P_7_2 + P_7_3 + P_7_4 + P_7_5 + P_7_6 + P_7_7 + P_7_8 + P_7_9 + P_7_10 + P_7_11 + P_7_12 + P_7_13 + P_7_14 + P_7_15 + P_7_16 + P_7_17 + P_8_3 + P_8_4 + P_8_5 + P_8_6 + P_8_7 + P_8_8 + P_8_9 + P_8_10 + P_8_11 + P_8_12 + P_8_13 + P_8_14 + P_8_15 + P_8_16 + P_9_4 + P_9_5 + P_9_6 + P_9_7 + P_9_8 + P_9_9 + P_9_10 + P_9_11 + P_9_12 + P_9_13 + P_9_14 + P_9_15 + P_10_5 + P_10_6 + P_10_7 + P_10_8 + P_10_9 + P_10_10 + P_10_11 + P_10_12 + P_10_13 + P_10_14 + P_11_6 + P_11_7 + P_11_8 + P_11_9 + P_11_10 + P_11_11 + P_11_12 + P_11_13 + P_12_7 + P_12_8 + P_12_9 + P_12_10 + P_12_11 + P_12_12 + P_13_8 + P_13_9 + P_13_10 + P_13_11 + P_14_9 + P_14_10 + -1'P_16_9 + -1'P_16_10 + -1'P_17_8 + -1'P_17_9 + -1'P_17_10 + -1'P_17_11 + -1'P_18_7 + -1'P_18_8 + -1'P_18_9 + -1'P_18_10 + -1'P_18_11 + -1'P_18_12 + -1'P_19_6 + -1'P_19_7 + -1'P_19_8 + -1'P_19_9 + -1'P_19_10 + -1'P_19_11 + -1'P_19_12 + -1'P_19_13 + cX_6 + cX_7 + cX_8 + cX_9 + cX_10 + cX_11 + cX_12 + cX_13 + cX_14 + cX_15 + cX_16 + cX_17 + cX_18 + cX_19 + -1'L_25 + -1'L_26 + -1'L_27 + -1'L_28 + -1'L_29 + -1'L_30 + -1'L_31 + -1'L_32 + -1'L_33 + -1'L_34 + -1'L_35 + -1'L_36 + -1'L_37 + -1'L_38 + -1'R_26 + -1'R_27 + -1'R_28 + -1'R_29 + -1'R_30 + -1'R_31 + -1'R_32 + -1'R_33 + -1'R_34 + -1'R_35 + -1'R_36 + -1'R_37 + -1'R_38 + -1'R_39 = -14
invariant :P_0_3 + P_3_3 + P_4_2 + P_4_3 + P_4_4 + P_5_3 + -1'P_5_6 + -1'P_5_7 + -1'P_5_8 + -1'P_5_9 + -1'P_5_10 + -1'P_5_11 + -1'P_5_12 + -1'P_5_13 + -1'P_5_14 + -1'P_5_15 + -1'P_5_16 + -1'P_5_17 + -1'P_5_18 + -1'P_6_5 + -1'P_6_6 + -2'P_6_7 + -2'P_6_8 + -2'P_6_9 + -2'P_6_10 + -2'P_6_11 + -2'P_6_12 + -2'P_6_13 + -2'P_6_14 + -2'P_6_15 + -2'P_6_16 + -2'P_6_17 + -1'P_6_18 + -1'P_7_4 + -1'P_7_5 + -2'P_7_6 + -2'P_7_7 + -3'P_7_8 + -3'P_7_9 + -3'P_7_10 + -3'P_7_11 + -3'P_7_12 + -3'P_7_13 + -3'P_7_14 + -3'P_7_15 + -3'P_7_16 + -2'P_7_17 + -1'P_7_18 + -1'P_8_4 + -2'P_8_5 + -2'P_8_6 + -3'P_8_7 + -3'P_8_8 + -4'P_8_9 + -4'P_8_10 + -4'P_8_11 + -4'P_8_12 + -4'P_8_13 + -4'P_8_14 + -4'P_8_15 + -3'P_8_16 + -2'P_8_17 + -1'P_8_18 + -1'P_9_4 + -2'P_9_5 + -3'P_9_6 + -3'P_9_7 + -4'P_9_8 + -4'P_9_9 + -5'P_9_10 + -5'P_9_11 + -5'P_9_12 + -5'P_9_13 + -5'P_9_14 + -4'P_9_15 + -3'P_9_16 + -2'P_9_17 + -1'P_9_18 + -1'P_10_4 + -2'P_10_5 + -3'P_10_6 + -4'P_10_7 + -4'P_10_8 + -5'P_10_9 + -5'P_10_10 + -6'P_10_11 + -6'P_10_12 + -6'P_10_13 + -5'P_10_14 + -4'P_10_15 + -3'P_10_16 + -2'P_10_17 + -1'P_10_18 + -1'P_11_4 + -2'P_11_5 + -3'P_11_6 + -4'P_11_7 + -5'P_11_8 + -5'P_11_9 + -6'P_11_10 + -6'P_11_11 + -7'P_11_12 + -6'P_11_13 + -5'P_11_14 + -4'P_11_15 + -3'P_11_16 + -2'P_11_17 + -1'P_11_18 + -1'P_12_4 + -2'P_12_5 + -3'P_12_6 + -4'P_12_7 + -5'P_12_8 + -6'P_12_9 + -6'P_12_10 + -7'P_12_11 + -6'P_12_12 + -6'P_12_13 + -5'P_12_14 + -4'P_12_15 + -3'P_12_16 + -2'P_12_17 + -1'P_12_18 + -1'P_13_4 + -2'P_13_5 + -3'P_13_6 + -4'P_13_7 + -5'P_13_8 + -6'P_13_9 + -7'P_13_10 + -6'P_13_11 + -6'P_13_12 + -5'P_13_13 + -5'P_13_14 + -4'P_13_15 + -3'P_13_16 + -2'P_13_17 + -1'P_13_18 + -1'P_14_4 + -2'P_14_5 + -3'P_14_6 + -4'P_14_7 + -5'P_14_8 + -6'P_14_9 + -6'P_14_10 + -6'P_14_11 + -5'P_14_12 + -5'P_14_13 + -4'P_14_14 + -4'P_14_15 + -3'P_14_16 + -2'P_14_17 + -1'P_14_18 + -1'P_15_4 + -2'P_15_5 + -3'P_15_6 + -4'P_15_7 + -5'P_15_8 + -5'P_15_9 + -5'P_15_10 + -5'P_15_11 + -5'P_15_12 + -4'P_15_13 + -4'P_15_14 + -3'P_15_15 + -3'P_15_16 + -2'P_15_17 + -1'P_15_18 + -1'P_16_4 + -2'P_16_5 + -3'P_16_6 + -4'P_16_7 + -4'P_16_8 + -4'P_16_9 + -4'P_16_10 + -4'P_16_11 + -4'P_16_12 + -4'P_16_13 + -3'P_16_14 + -3'P_16_15 + -2'P_16_16 + -2'P_16_17 + -1'P_16_18 + -1'P_17_4 + -2'P_17_5 + -3'P_17_6 + -3'P_17_7 + -3'P_17_8 + -3'P_17_9 + -3'P_17_10 + -3'P_17_11 + -3'P_17_12 + -3'P_17_13 + -3'P_17_14 + -2'P_17_15 + -2'P_17_16 + -1'P_17_17 + -1'P_17_18 + -1'P_18_4 + -2'P_18_5 + -2'P_18_6 + -2'P_18_7 + -2'P_18_8 + -2'P_18_9 + -2'P_18_10 + -2'P_18_11 + -2'P_18_12 + -2'P_18_13 + -2'P_18_14 + -2'P_18_15 + -1'P_18_16 + -1'P_18_17 + -1'P_19_4 + -1'P_19_5 + -1'P_19_6 + -1'P_19_7 + -1'P_19_8 + -1'P_19_9 + -1'P_19_10 + -1'P_19_11 + -1'P_19_12 + -1'P_19_13 + -1'P_19_14 + -1'P_19_15 + -1'P_19_16 + -1'cX_5 + -2'cX_6 + -3'cX_7 + -4'cX_8 + -5'cX_9 + -6'cX_10 + -7'cX_11 + -8'cX_12 + -9'cX_13 + -10'cX_14 + -11'cX_15 + -12'cX_16 + -13'cX_17 + -14'cX_18 + -15'cX_19 + -1'cY_4 + -2'cY_5 + -3'cY_6 + -4'cY_7 + -5'cY_8 + -6'cY_9 + -7'cY_10 + -8'cY_11 + -9'cY_12 + -10'cY_13 + -11'cY_14 + -12'cY_15 + -13'cY_16 + -14'cY_17 + -15'cY_18 + -16'cY_19 + 9'L_0 + 8'L_1 + 8'L_2 + 7'L_3 + 7'L_4 + 6'L_5 + 6'L_6 + 5'L_7 + 5'L_8 + 4'L_9 + 4'L_10 + 3'L_11 + 3'L_12 + 2'L_13 + 2'L_14 + L_15 + L_16 + L_24 + L_25 + 2'L_26 + 2'L_27 + 3'L_28 + 3'L_29 + 4'L_30 + 4'L_31 + 5'L_32 + 5'L_33 + 6'L_34 + 6'L_35 + 7'L_36 + 7'L_37 + 8'L_38 + R_7 + R_8 + 2'R_9 + 2'R_10 + 3'R_11 + 3'R_12 + 4'R_13 + 4'R_14 + 5'R_15 + 5'R_16 + 6'R_17 + 6'R_18 + 7'R_19 + 7'R_20 + 8'R_21 + 8'R_22 + 9'R_23 + 9'R_24 + 11'R_25 + 12'R_26 + 14'R_27 + 15'R_28 + 17'R_29 + 18'R_30 + 20'R_31 + 21'R_32 + 23'R_33 + 24'R_34 + 26'R_35 + 27'R_36 + 29'R_37 + 30'R_38 + 31'R_39 = 297
invariant :P_14_19 + P_15_18 + P_16_17 + P_17_16 + P_18_15 + P_19_14 + R_34 = 1
invariant :P_15_19 + P_16_18 + P_17_17 + P_18_16 + P_19_15 + R_35 = 1
invariant :P_7_1 + P_7_2 + P_7_3 + P_7_4 + P_7_5 + P_7_6 + P_7_7 + P_7_8 + P_7_9 + P_7_10 + P_7_11 + P_7_12 + P_7_13 + P_7_14 + P_7_15 + P_7_16 + P_7_17 + P_7_18 + P_8_2 + P_8_3 + P_8_4 + P_8_5 + P_8_6 + P_8_7 + P_8_8 + P_8_9 + P_8_10 + P_8_11 + P_8_12 + P_8_13 + P_8_14 + P_8_15 + P_8_16 + P_8_17 + P_9_3 + P_9_4 + P_9_5 + P_9_6 + P_9_7 + P_9_8 + P_9_9 + P_9_10 + P_9_11 + P_9_12 + P_9_13 + P_9_14 + P_9_15 + P_9_16 + P_10_4 + P_10_5 + P_10_6 + P_10_7 + P_10_8 + P_10_9 + P_10_10 + P_10_11 + P_10_12 + P_10_13 + P_10_14 + P_10_15 + P_11_5 + P_11_6 + P_11_7 + P_11_8 + P_11_9 + P_11_10 + P_11_11 + P_11_12 + P_11_13 + P_11_14 + P_12_6 + P_12_7 + P_12_8 + P_12_9 + P_12_10 + P_12_11 + P_12_12 + P_12_13 + P_13_7 + P_13_8 + P_13_9 + P_13_10 + P_13_11 + P_13_12 + P_14_8 + P_14_9 + P_14_10 + P_14_11 + P_15_9 + P_15_10 + -1'P_17_9 + -1'P_17_10 + -1'P_18_8 + -1'P_18_9 + -1'P_18_10 + -1'P_18_11 + -1'P_19_7 + -1'P_19_8 + -1'P_19_9 + -1'P_19_10 + -1'P_19_11 + -1'P_19_12 + cX_7 + cX_8 + cX_9 + cX_10 + cX_11 + cX_12 + cX_13 + cX_14 + cX_15 + cX_16 + cX_17 + cX_18 + cX_19 + -1'L_26 + -1'L_27 + -1'L_28 + -1'L_29 + -1'L_30 + -1'L_31 + -1'L_32 + -1'L_33 + -1'L_34 + -1'L_35 + -1'L_36 + -1'L_37 + -1'L_38 + -1'R_27 + -1'R_28 + -1'R_29 + -1'R_30 + -1'R_31 + -1'R_32 + -1'R_33 + -1'R_34 + -1'R_35 + -1'R_36 + -1'R_37 + -1'R_38 + -1'R_39 = -13
invariant :P_0_19 + L_0 = 1
invariant :cX_2 + 3'cX_3 + 6'cX_4 + 10'cX_5 + 15'cX_6 + 21'cX_7 + 28'cX_8 + 36'cX_9 + 45'cX_10 + 55'cX_11 + 66'cX_12 + 78'cX_13 + 91'cX_14 + 105'cX_15 + 120'cX_16 + 136'cX_17 + 153'cX_18 + 171'cX_19 + cY_2 + 3'cY_3 + 6'cY_4 + 10'cY_5 + 15'cY_6 + 21'cY_7 + 28'cY_8 + 36'cY_9 + 45'cY_10 + 55'cY_11 + 66'cY_12 + 78'cY_13 + 91'cY_14 + 105'cY_15 + 120'cY_16 + 136'cY_17 + 153'cY_18 + 171'cY_19 + -90'L_0 + -81'L_1 + -72'L_2 + -64'L_3 + -56'L_4 + -49'L_5 + -42'L_6 + -36'L_7 + -30'L_8 + -25'L_9 + -20'L_10 + -16'L_11 + -12'L_12 + -9'L_13 + -6'L_14 + -4'L_15 + -2'L_16 + -1'L_17 + -1'L_21 + -2'L_22 + -4'L_23 + -6'L_24 + -9'L_25 + -12'L_26 + -16'L_27 + -20'L_28 + -25'L_29 + -30'L_30 + -36'L_31 + -42'L_32 + -49'L_33 + -56'L_34 + -64'L_35 + -72'L_36 + -81'L_37 + -90'L_38 + -1'R_4 + -2'R_5 + -4'R_6 + -6'R_7 + -9'R_8 + -12'R_9 + -16'R_10 + -20'R_11 + -25'R_12 + -30'R_13 + -36'R_14 + -42'R_15 + -49'R_16 + -56'R_17 + -64'R_18 + -72'R_19 + -81'R_20 + -90'R_21 + -100'R_22 + -110'R_23 + -121'R_24 + -132'R_25 + -144'R_26 + -156'R_27 + -169'R_28 + -182'R_29 + -196'R_30 + -210'R_31 + -225'R_32 + -240'R_33 + -256'R_34 + -272'R_35 + -289'R_36 + -306'R_37 + -324'R_38 + -342'R_39 = -3339
invariant :L_1 + L_3 + L_5 + L_7 + L_9 + L_11 + L_13 + L_15 + L_17 + L_19 + L_21 + L_23 + L_25 + L_27 + L_29 + L_31 + L_33 + L_35 + L_37 + -1'R_1 + -1'R_3 + -1'R_5 + -1'R_7 + -1'R_9 + -1'R_11 + -1'R_13 + -1'R_15 + -1'R_17 + -1'R_19 + -1'R_21 + -1'R_23 + -1'R_25 + -1'R_27 + -1'R_29 + -1'R_31 + -1'R_33 + -1'R_35 + -1'R_37 + -1'R_39 = -1
invariant :P_1_15 + -1'P_3_14 + -1'P_3_15 + -1'P_3_16 + -1'P_4_13 + -2'P_4_14 + -2'P_4_15 + -2'P_4_16 + -1'P_4_17 + -1'P_5_12 + -2'P_5_13 + -3'P_5_14 + -3'P_5_15 + -3'P_5_16 + -2'P_5_17 + -1'P_5_18 + -1'P_6_11 + -2'P_6_12 + -3'P_6_13 + -4'P_6_14 + -4'P_6_15 + -4'P_6_16 + -3'P_6_17 + -2'P_6_18 + -1'P_7_10 + -2'P_7_11 + -3'P_7_12 + -4'P_7_13 + -5'P_7_14 + -5'P_7_15 + -5'P_7_16 + -4'P_7_17 + -2'P_7_18 + -1'P_8_9 + -2'P_8_10 + -3'P_8_11 + -4'P_8_12 + -5'P_8_13 + -6'P_8_14 + -6'P_8_15 + -6'P_8_16 + -4'P_8_17 + -2'P_8_18 + -1'P_9_8 + -2'P_9_9 + -3'P_9_10 + -4'P_9_11 + -5'P_9_12 + -6'P_9_13 + -7'P_9_14 + -7'P_9_15 + -6'P_9_16 + -4'P_9_17 + -2'P_9_18 + -1'P_10_7 + -2'P_10_8 + -3'P_10_9 + -4'P_10_10 + -5'P_10_11 + -6'P_10_12 + -7'P_10_13 + -8'P_10_14 + -7'P_10_15 + -6'P_10_16 + -4'P_10_17 + -2'P_10_18 + -1'P_11_6 + -2'P_11_7 + -3'P_11_8 + -4'P_11_9 + -5'P_11_10 + -6'P_11_11 + -7'P_11_12 + -8'P_11_13 + -8'P_11_14 + -7'P_11_15 + -6'P_11_16 + -4'P_11_17 + -2'P_11_18 + -1'P_12_5 + -2'P_12_6 + -3'P_12_7 + -4'P_12_8 + -5'P_12_9 + -6'P_12_10 + -7'P_12_11 + -8'P_12_12 + -8'P_12_13 + -8'P_12_14 + -7'P_12_15 + -6'P_12_16 + -4'P_12_17 + -2'P_12_18 + -1'P_13_4 + -2'P_13_5 + -3'P_13_6 + -4'P_13_7 + -5'P_13_8 + -6'P_13_9 + -7'P_13_10 + -8'P_13_11 + -8'P_13_12 + -8'P_13_13 + -8'P_13_14 + -7'P_13_15 + -6'P_13_16 + -4'P_13_17 + -2'P_13_18 + -1'P_14_3 + -2'P_14_4 + -3'P_14_5 + -4'P_14_6 + -5'P_14_7 + -6'P_14_8 + -7'P_14_9 + -8'P_14_10 + -8'P_14_11 + -8'P_14_12 + -8'P_14_13 + -8'P_14_14 + -7'P_14_15 + -6'P_14_16 + -4'P_14_17 + -2'P_14_18 + -1'P_15_2 + -2'P_15_3 + -3'P_15_4 + -4'P_15_5 + -5'P_15_6 + -6'P_15_7 + -7'P_15_8 + -8'P_15_9 + -8'P_15_10 + -8'P_15_11 + -8'P_15_12 + -8'P_15_13 + -8'P_15_14 + -7'P_15_15 + -6'P_15_16 + -4'P_15_17 + -2'P_15_18 + -1'P_16_2 + -2'P_16_3 + -3'P_16_4 + -4'P_16_5 + -5'P_16_6 + -6'P_16_7 + -7'P_16_8 + -7'P_16_9 + -7'P_16_10 + -7'P_16_11 + -7'P_16_12 + -7'P_16_13 + -7'P_16_14 + -6'P_16_15 + -5'P_16_16 + -3'P_16_17 + -1'P_16_18 + -1'P_17_3 + -2'P_17_4 + -3'P_17_5 + -4'P_17_6 + -5'P_17_7 + -5'P_17_8 + -5'P_17_9 + -5'P_17_10 + -5'P_17_11 + -5'P_17_12 + -5'P_17_13 + -5'P_17_14 + -4'P_17_15 + -3'P_17_16 + -1'P_17_17 + -1'P_18_4 + -2'P_18_5 + -3'P_18_6 + -3'P_18_7 + -3'P_18_8 + -3'P_18_9 + -3'P_18_10 + -3'P_18_11 + -3'P_18_12 + -3'P_18_13 + -3'P_18_14 + -2'P_18_15 + -1'P_18_16 + -1'P_19_5 + -1'P_19_6 + -1'P_19_7 + -1'P_19_8 + -1'P_19_9 + -1'P_19_10 + -1'P_19_11 + -1'P_19_12 + -1'P_19_13 + -1'P_19_14 + cX_16 + 3'cX_17 + 5'cX_18 + 7'cX_19 + cY_15 + 2'cY_16 + 4'cY_17 + 6'cY_18 + 8'cY_19 + -5'L_0 + -4'L_1 + -3'L_2 + -2'L_3 + -1'L_4 + -1'L_35 + -2'L_36 + -3'L_37 + -4'L_38 + -1'R_18 + -2'R_19 + -3'R_20 + -4'R_21 + -5'R_22 + -6'R_23 + -7'R_24 + -8'R_25 + -8'R_26 + -8'R_27 + -8'R_28 + -8'R_29 + -8'R_30 + -8'R_31 + -8'R_32 + -8'R_33 + -8'R_34 + -8'R_35 + -9'R_36 + -11'R_37 + -13'R_38 + -15'R_39 = -152
invariant :P_0_15 + P_3_15 + P_4_14 + P_4_15 + P_4_16 + P_5_13 + P_5_14 + 2'P_5_15 + P_5_16 + P_5_17 + P_6_12 + P_6_13 + 2'P_6_14 + 2'P_6_15 + 2'P_6_16 + P_6_17 + P_6_18 + P_7_11 + P_7_12 + 2'P_7_13 + 2'P_7_14 + 3'P_7_15 + 2'P_7_16 + 2'P_7_17 + P_7_18 + P_8_10 + P_8_11 + 2'P_8_12 + 2'P_8_13 + 3'P_8_14 + 3'P_8_15 + 3'P_8_16 + 2'P_8_17 + P_8_18 + P_9_9 + P_9_10 + 2'P_9_11 + 2'P_9_12 + 3'P_9_13 + 3'P_9_14 + 4'P_9_15 + 3'P_9_16 + 2'P_9_17 + P_9_18 + P_10_8 + P_10_9 + 2'P_10_10 + 2'P_10_11 + 3'P_10_12 + 3'P_10_13 + 4'P_10_14 + 4'P_10_15 + 3'P_10_16 + 2'P_10_17 + P_10_18 + P_11_7 + P_11_8 + 2'P_11_9 + 2'P_11_10 + 3'P_11_11 + 3'P_11_12 + 4'P_11_13 + 4'P_11_14 + 4'P_11_15 + 3'P_11_16 + 2'P_11_17 + P_11_18 + P_12_6 + P_12_7 + 2'P_12_8 + 2'P_12_9 + 3'P_12_10 + 3'P_12_11 + 4'P_12_12 + 4'P_12_13 + 4'P_12_14 + 4'P_12_15 + 3'P_12_16 + 2'P_12_17 + P_12_18 + P_13_5 + P_13_6 + 2'P_13_7 + 2'P_13_8 + 3'P_13_9 + 3'P_13_10 + 4'P_13_11 + 4'P_13_12 + 4'P_13_13 + 4'P_13_14 + 4'P_13_15 + 3'P_13_16 + 2'P_13_17 + P_13_18 + P_14_4 + P_14_5 + 2'P_14_6 + 2'P_14_7 + 3'P_14_8 + 3'P_14_9 + 4'P_14_10 + 4'P_14_11 + 4'P_14_12 + 4'P_14_13 + 4'P_14_14 + 4'P_14_15 + 3'P_14_16 + 2'P_14_17 + P_14_18 + P_15_3 + P_15_4 + 2'P_15_5 + 2'P_15_6 + 3'P_15_7 + 3'P_15_8 + 4'P_15_9 + 4'P_15_10 + 4'P_15_11 + 4'P_15_12 + 4'P_15_13 + 4'P_15_14 + 4'P_15_15 + 3'P_15_16 + 2'P_15_17 + P_15_18 + P_16_2 + P_16_3 + 2'P_16_4 + 2'P_16_5 + 3'P_16_6 + 3'P_16_7 + 4'P_16_8 + 4'P_16_9 + 4'P_16_10 + 4'P_16_11 + 4'P_16_12 + 4'P_16_13 + 4'P_16_14 + 4'P_16_15 + 3'P_16_16 + 2'P_16_17 + P_16_18 + P_17_3 + P_17_4 + 2'P_17_5 + 2'P_17_6 + 3'P_17_7 + 3'P_17_8 + 3'P_17_9 + 3'P_17_10 + 3'P_17_11 + 3'P_17_12 + 3'P_17_13 + 3'P_17_14 + 3'P_17_15 + 2'P_17_16 + P_17_17 + P_18_4 + P_18_5 + 2'P_18_6 + 2'P_18_7 + 2'P_18_8 + 2'P_18_9 + 2'P_18_10 + 2'P_18_11 + 2'P_18_12 + 2'P_18_13 + 2'P_18_14 + 2'P_18_15 + P_18_16 + P_19_5 + P_19_6 + P_19_7 + P_19_8 + P_19_9 + P_19_10 + P_19_11 + P_19_12 + P_19_13 + P_19_14 + P_19_15 + -1'cX_17 + -2'cX_18 + -3'cX_19 + -1'cY_16 + -2'cY_17 + -3'cY_18 + -4'cY_19 + 3'L_0 + 2'L_1 + 2'L_2 + L_3 + L_4 + L_36 + L_37 + 2'L_38 + R_19 + R_20 + 2'R_21 + 2'R_22 + 3'R_23 + 3'R_24 + 4'R_25 + 4'R_26 + 4'R_27 + 4'R_28 + 4'R_29 + 4'R_30 + 4'R_31 + 4'R_32 + 4'R_33 + 4'R_34 + 4'R_35 + 4'R_36 + 5'R_37 + 6'R_38 + 7'R_39 = 75
invariant :P_3_19 + P_4_18 + P_5_17 + P_6_16 + P_7_15 + P_8_14 + P_9_13 + P_10_12 + P_11_11 + P_12_10 + P_13_9 + P_14_8 + P_15_7 + P_16_6 + P_17_5 + P_18_4 + P_19_3 + R_23 = 1
invariant :P_16_0 + -1'P_17_2 + -1'P_17_3 + -1'P_17_4 + -1'P_17_5 + -1'P_17_6 + -1'P_17_7 + -1'P_17_8 + -1'P_17_9 + -1'P_17_10 + -1'P_17_11 + -1'P_17_12 + -1'P_17_13 + -1'P_17_14 + -1'P_17_15 + -1'P_17_16 + -1'P_17_17 + -1'P_17_18 + -1'P_18_3 + -1'P_18_4 + -1'P_18_5 + -1'P_18_6 + -1'P_18_7 + -1'P_18_8 + -1'P_18_9 + -1'P_18_10 + -1'P_18_11 + -1'P_18_12 + -1'P_18_13 + -1'P_18_14 + -1'P_18_15 + -1'P_18_16 + -1'P_18_17 + -1'P_19_4 + -1'P_19_5 + -1'P_19_6 + -1'P_19_7 + -1'P_19_8 + -1'P_19_9 + -1'P_19_10 + -1'P_19_11 + -1'P_19_12 + -1'P_19_13 + -1'P_19_14 + -1'P_19_15 + -1'P_19_16 + -1'cX_17 + -1'cX_18 + -1'cX_19 + L_35 + L_36 + L_37 + L_38 + R_37 + R_38 + R_39 = 4
invariant :P_1_16 + -1'P_3_15 + -1'P_3_16 + -1'P_3_17 + -1'P_4_14 + -2'P_4_15 + -2'P_4_16 + -2'P_4_17 + -1'P_4_18 + -1'P_5_13 + -2'P_5_14 + -3'P_5_15 + -3'P_5_16 + -3'P_5_17 + -2'P_5_18 + -1'P_6_12 + -2'P_6_13 + -3'P_6_14 + -4'P_6_15 + -4'P_6_16 + -4'P_6_17 + -2'P_6_18 + -1'P_7_11 + -2'P_7_12 + -3'P_7_13 + -4'P_7_14 + -5'P_7_15 + -5'P_7_16 + -4'P_7_17 + -2'P_7_18 + -1'P_8_10 + -2'P_8_11 + -3'P_8_12 + -4'P_8_13 + -5'P_8_14 + -6'P_8_15 + -5'P_8_16 + -4'P_8_17 + -2'P_8_18 + -1'P_9_9 + -2'P_9_10 + -3'P_9_11 + -4'P_9_12 + -5'P_9_13 + -6'P_9_14 + -6'P_9_15 + -5'P_9_16 + -4'P_9_17 + -2'P_9_18 + -1'P_10_8 + -2'P_10_9 + -3'P_10_10 + -4'P_10_11 + -5'P_10_12 + -6'P_10_13 + -6'P_10_14 + -6'P_10_15 + -5'P_10_16 + -4'P_10_17 + -2'P_10_18 + -1'P_11_7 + -2'P_11_8 + -3'P_11_9 + -4'P_11_10 + -5'P_11_11 + -6'P_11_12 + -6'P_11_13 + -6'P_11_14 + -6'P_11_15 + -5'P_11_16 + -4'P_11_17 + -2'P_11_18 + -1'P_12_6 + -2'P_12_7 + -3'P_12_8 + -4'P_12_9 + -5'P_12_10 + -6'P_12_11 + -6'P_12_12 + -6'P_12_13 + -6'P_12_14 + -6'P_12_15 + -5'P_12_16 + -4'P_12_17 + -2'P_12_18 + -1'P_13_5 + -2'P_13_6 + -3'P_13_7 + -4'P_13_8 + -5'P_13_9 + -6'P_13_10 + -6'P_13_11 + -6'P_13_12 + -6'P_13_13 + -6'P_13_14 + -6'P_13_15 + -5'P_13_16 + -4'P_13_17 + -2'P_13_18 + -1'P_14_4 + -2'P_14_5 + -3'P_14_6 + -4'P_14_7 + -5'P_14_8 + -6'P_14_9 + -6'P_14_10 + -6'P_14_11 + -6'P_14_12 + -6'P_14_13 + -6'P_14_14 + -6'P_14_15 + -5'P_14_16 + -4'P_14_17 + -2'P_14_18 + -1'P_15_3 + -2'P_15_4 + -3'P_15_5 + -4'P_15_6 + -5'P_15_7 + -6'P_15_8 + -6'P_15_9 + -6'P_15_10 + -6'P_15_11 + -6'P_15_12 + -6'P_15_13 + -6'P_15_14 + -6'P_15_15 + -5'P_15_16 + -4'P_15_17 + -2'P_15_18 + -1'P_16_2 + -2'P_16_3 + -3'P_16_4 + -4'P_16_5 + -5'P_16_6 + -6'P_16_7 + -6'P_16_8 + -6'P_16_9 + -6'P_16_10 + -6'P_16_11 + -6'P_16_12 + -6'P_16_13 + -6'P_16_14 + -6'P_16_15 + -5'P_16_16 + -4'P_16_17 + -2'P_16_18 + -1'P_17_2 + -2'P_17_3 + -3'P_17_4 + -4'P_17_5 + -5'P_17_6 + -5'P_17_7 + -5'P_17_8 + -5'P_17_9 + -5'P_17_10 + -5'P_17_11 + -5'P_17_12 + -5'P_17_13 + -5'P_17_14 + -5'P_17_15 + -4'P_17_16 + -3'P_17_17 + -1'P_17_18 + -1'P_18_3 + -2'P_18_4 + -3'P_18_5 + -3'P_18_6 + -3'P_18_7 + -3'P_18_8 + -3'P_18_9 + -3'P_18_10 + -3'P_18_11 + -3'P_18_12 + -3'P_18_13 + -3'P_18_14 + -3'P_18_15 + -2'P_18_16 + -1'P_18_17 + -1'P_19_4 + -1'P_19_5 + -1'P_19_6 + -1'P_19_7 + -1'P_19_8 + -1'P_19_9 + -1'P_19_10 + -1'P_19_11 + -1'P_19_12 + -1'P_19_13 + -1'P_19_14 + -1'P_19_15 + cX_17 + 3'cX_18 + 5'cX_19 + cY_16 + 2'cY_17 + 4'cY_18 + 6'cY_19 + -4'L_0 + -3'L_1 + -2'L_2 + -1'L_3 + -1'L_36 + -2'L_37 + -3'L_38 + -1'R_19 + -2'R_20 + -3'R_21 + -4'R_22 + -5'R_23 + -6'R_24 + -6'R_25 + -6'R_26 + -6'R_27 + -6'R_28 + -6'R_29 + -6'R_30 + -6'R_31 + -6'R_32 + -6'R_33 + -6'R_34 + -6'R_35 + -6'R_36 + -7'R_37 + -9'R_38 + -11'R_39 = -114
invariant :P_1_14 + -1'P_3_13 + -1'P_3_14 + -1'P_3_15 + -1'P_4_12 + -2'P_4_13 + -2'P_4_14 + -2'P_4_15 + -1'P_4_16 + -1'P_5_11 + -2'P_5_12 + -3'P_5_13 + -3'P_5_14 + -3'P_5_15 + -2'P_5_16 + -1'P_5_17 + -1'P_6_10 + -2'P_6_11 + -3'P_6_12 + -4'P_6_13 + -4'P_6_14 + -4'P_6_15 + -3'P_6_16 + -2'P_6_17 + -1'P_6_18 + -1'P_7_9 + -2'P_7_10 + -3'P_7_11 + -4'P_7_12 + -5'P_7_13 + -5'P_7_14 + -5'P_7_15 + -4'P_7_16 + -3'P_7_17 + -2'P_7_18 + -1'P_8_8 + -2'P_8_9 + -3'P_8_10 + -4'P_8_11 + -5'P_8_12 + -6'P_8_13 + -6'P_8_14 + -6'P_8_15 + -5'P_8_16 + -4'P_8_17 + -2'P_8_18 + -1'P_9_7 + -2'P_9_8 + -3'P_9_9 + -4'P_9_10 + -5'P_9_11 + -6'P_9_12 + -7'P_9_13 + -7'P_9_14 + -7'P_9_15 + -6'P_9_16 + -4'P_9_17 + -2'P_9_18 + -1'P_10_6 + -2'P_10_7 + -3'P_10_8 + -4'P_10_9 + -5'P_10_10 + -6'P_10_11 + -7'P_10_12 + -8'P_10_13 + -8'P_10_14 + -8'P_10_15 + -6'P_10_16 + -4'P_10_17 + -2'P_10_18 + -1'P_11_5 + -2'P_11_6 + -3'P_11_7 + -4'P_11_8 + -5'P_11_9 + -6'P_11_10 + -7'P_11_11 + -8'P_11_12 + -9'P_11_13 + -9'P_11_14 + -8'P_11_15 + -6'P_11_16 + -4'P_11_17 + -2'P_11_18 + -1'P_12_4 + -2'P_12_5 + -3'P_12_6 + -4'P_12_7 + -5'P_12_8 + -6'P_12_9 + -7'P_12_10 + -8'P_12_11 + -9'P_12_12 + -10'P_12_13 + -9'P_12_14 + -8'P_12_15 + -6'P_12_16 + -4'P_12_17 + -2'P_12_18 + -1'P_13_3 + -2'P_13_4 + -3'P_13_5 + -4'P_13_6 + -5'P_13_7 + -6'P_13_8 + -7'P_13_9 + -8'P_13_10 + -9'P_13_11 + -10'P_13_12 + -10'P_13_13 + -9'P_13_14 + -8'P_13_15 + -6'P_13_16 + -4'P_13_17 + -2'P_13_18 + -1'P_14_2 + -2'P_14_3 + -3'P_14_4 + -4'P_14_5 + -5'P_14_6 + -6'P_14_7 + -7'P_14_8 + -8'P_14_9 + -9'P_14_10 + -10'P_14_11 + -10'P_14_12 + -10'P_14_13 + -9'P_14_14 + -8'P_14_15 + -6'P_14_16 + -4'P_14_17 + -2'P_14_18 + -1'P_15_2 + -2'P_15_3 + -3'P_15_4 + -4'P_15_5 + -5'P_15_6 + -6'P_15_7 + -7'P_15_8 + -8'P_15_9 + -9'P_15_10 + -9'P_15_11 + -9'P_15_12 + -9'P_15_13 + -8'P_15_14 + -7'P_15_15 + -5'P_15_16 + -3'P_15_17 + -1'P_15_18 + -1'P_16_3 + -2'P_16_4 + -3'P_16_5 + -4'P_16_6 + -5'P_16_7 + -6'P_16_8 + -7'P_16_9 + -7'P_16_10 + -7'P_16_11 + -7'P_16_12 + -7'P_16_13 + -6'P_16_14 + -5'P_16_15 + -3'P_16_16 + -1'P_16_17 + -1'P_17_4 + -2'P_17_5 + -3'P_17_6 + -4'P_17_7 + -5'P_17_8 + -5'P_17_9 + -5'P_17_10 + -5'P_17_11 + -5'P_17_12 + -5'P_17_13 + -4'P_17_14 + -3'P_17_15 + -1'P_17_16 + -1'P_18_5 + -2'P_18_6 + -3'P_18_7 + -3'P_18_8 + -3'P_18_9 + -3'P_18_10 + -3'P_18_11 + -3'P_18_12 + -3'P_18_13 + -2'P_18_14 + -1'P_18_15 + -1'P_19_6 + -1'P_19_7 + -1'P_19_8 + -1'P_19_9 + -1'P_19_10 + -1'P_19_11 + -1'P_19_12 + -1'P_19_13 + cX_15 + 3'cX_16 + 5'cX_17 + 7'cX_18 + 9'cX_19 + cY_14 + 2'cY_15 + 4'cY_16 + 6'cY_17 + 8'cY_18 + 10'cY_19 + -6'L_0 + -5'L_1 + -4'L_2 + -3'L_3 + -2'L_4 + -1'L_5 + -1'L_34 + -2'L_35 + -3'L_36 + -4'L_37 + -5'L_38 + -1'R_17 + -2'R_18 + -3'R_19 + -4'R_20 + -5'R_21 + -6'R_22 + -7'R_23 + -8'R_24 + -9'R_25 + -10'R_26 + -10'R_27 + -10'R_28 + -10'R_29 + -10'R_30 + -10'R_31 + -10'R_32 + -10'R_33 + -10'R_34 + -11'R_35 + -13'R_36 + -15'R_37 + -17'R_38 + -19'R_39 = -190
invariant :P_5_19 + P_6_18 + P_7_17 + P_8_16 + P_9_15 + P_10_14 + P_11_13 + P_12_12 + P_13_11 + P_14_10 + P_15_9 + P_16_8 + P_17_7 + P_18_6 + P_19_5 + R_25 = 1
invariant :P_1_1 + P_3_3 + P_3_4 + P_3_5 + P_3_6 + P_3_7 + P_3_8 + P_3_9 + P_3_10 + P_3_11 + P_3_12 + P_3_13 + P_3_14 + P_3_15 + P_3_16 + P_3_17 + P_3_18 + P_4_3 + 2'P_4_4 + 2'P_4_5 + 2'P_4_6 + 2'P_4_7 + 2'P_4_8 + 2'P_4_9 + 2'P_4_10 + 2'P_4_11 + 2'P_4_12 + 2'P_4_13 + 2'P_4_14 + 2'P_4_15 + 2'P_4_16 + 2'P_4_17 + P_4_18 + P_5_3 + 2'P_5_4 + 3'P_5_5 + 3'P_5_6 + 3'P_5_7 + 3'P_5_8 + 3'P_5_9 + 3'P_5_10 + 3'P_5_11 + 3'P_5_12 + 3'P_5_13 + 3'P_5_14 + 3'P_5_15 + 3'P_5_16 + 2'P_5_17 + P_5_18 + P_6_3 + 2'P_6_4 + 3'P_6_5 + 4'P_6_6 + 4'P_6_7 + 4'P_6_8 + 4'P_6_9 + 4'P_6_10 + 4'P_6_11 + 4'P_6_12 + 4'P_6_13 + 4'P_6_14 + 4'P_6_15 + 3'P_6_16 + 2'P_6_17 + P_6_18 + P_7_3 + 2'P_7_4 + 3'P_7_5 + 4'P_7_6 + 5'P_7_7 + 5'P_7_8 + 5'P_7_9 + 5'P_7_10 + 5'P_7_11 + 5'P_7_12 + 5'P_7_13 + 5'P_7_14 + 4'P_7_15 + 3'P_7_16 + 2'P_7_17 + P_7_18 + P_8_3 + 2'P_8_4 + 3'P_8_5 + 4'P_8_6 + 5'P_8_7 + 6'P_8_8 + 6'P_8_9 + 6'P_8_10 + 6'P_8_11 + 6'P_8_12 + 6'P_8_13 + 5'P_8_14 + 4'P_8_15 + 3'P_8_16 + 2'P_8_17 + P_8_18 + P_9_3 + 2'P_9_4 + 3'P_9_5 + 4'P_9_6 + 5'P_9_7 + 6'P_9_8 + 7'P_9_9 + 7'P_9_10 + 7'P_9_11 + 7'P_9_12 + 6'P_9_13 + 5'P_9_14 + 4'P_9_15 + 3'P_9_16 + 2'P_9_17 + P_9_18 + P_10_3 + 2'P_10_4 + 3'P_10_5 + 4'P_10_6 + 5'P_10_7 + 6'P_10_8 + 7'P_10_9 + 8'P_10_10 + 8'P_10_11 + 7'P_10_12 + 6'P_10_13 + 5'P_10_14 + 4'P_10_15 + 3'P_10_16 + 2'P_10_17 + P_10_18 + P_11_3 + 2'P_11_4 + 3'P_11_5 + 4'P_11_6 + 5'P_11_7 + 6'P_11_8 + 7'P_11_9 + 8'P_11_10 + 8'P_11_11 + 7'P_11_12 + 6'P_11_13 + 5'P_11_14 + 4'P_11_15 + 3'P_11_16 + 2'P_11_17 + P_11_18 + P_12_3 + 2'P_12_4 + 3'P_12_5 + 4'P_12_6 + 5'P_12_7 + 6'P_12_8 + 7'P_12_9 + 7'P_12_10 + 7'P_12_11 + 7'P_12_12 + 6'P_12_13 + 5'P_12_14 + 4'P_12_15 + 3'P_12_16 + 2'P_12_17 + P_12_18 + P_13_3 + 2'P_13_4 + 3'P_13_5 + 4'P_13_6 + 5'P_13_7 + 6'P_13_8 + 6'P_13_9 + 6'P_13_10 + 6'P_13_11 + 6'P_13_12 + 6'P_13_13 + 5'P_13_14 + 4'P_13_15 + 3'P_13_16 + 2'P_13_17 + P_13_18 + P_14_3 + 2'P_14_4 + 3'P_14_5 + 4'P_14_6 + 5'P_14_7 + 5'P_14_8 + 5'P_14_9 + 5'P_14_10 + 5'P_14_11 + 5'P_14_12 + 5'P_14_13 + 5'P_14_14 + 4'P_14_15 + 3'P_14_16 + 2'P_14_17 + P_14_18 + P_15_3 + 2'P_15_4 + 3'P_15_5 + 4'P_15_6 + 4'P_15_7 + 4'P_15_8 + 4'P_15_9 + 4'P_15_10 + 4'P_15_11 + 4'P_15_12 + 4'P_15_13 + 4'P_15_14 + 4'P_15_15 + 3'P_15_16 + 2'P_15_17 + P_15_18 + P_16_3 + 2'P_16_4 + 3'P_16_5 + 3'P_16_6 + 3'P_16_7 + 3'P_16_8 + 3'P_16_9 + 3'P_16_10 + 3'P_16_11 + 3'P_16_12 + 3'P_16_13 + 3'P_16_14 + 3'P_16_15 + 3'P_16_16 + 2'P_16_17 + P_16_18 + P_17_3 + 2'P_17_4 + 2'P_17_5 + 2'P_17_6 + 2'P_17_7 + 2'P_17_8 + 2'P_17_9 + 2'P_17_10 + 2'P_17_11 + 2'P_17_12 + 2'P_17_13 + 2'P_17_14 + 2'P_17_15 + 2'P_17_16 + 2'P_17_17 + P_17_18 + P_18_3 + P_18_4 + P_18_5 + P_18_6 + P_18_7 + P_18_8 + P_18_9 + P_18_10 + P_18_11 + P_18_12 + P_18_13 + P_18_14 + P_18_15 + P_18_16 + P_18_17 + P_18_18 + cX_3 + 2'cX_4 + 3'cX_5 + 4'cX_6 + 5'cX_7 + 6'cX_8 + 7'cX_9 + 8'cX_10 + 9'cX_11 + 10'cX_12 + 11'cX_13 + 12'cX_14 + 13'cX_15 + 14'cX_16 + 15'cX_17 + 16'cX_18 + 17'cX_19 + cY_3 + 2'cY_4 + 3'cY_5 + 4'cY_6 + 5'cY_7 + 6'cY_8 + 7'cY_9 + 8'cY_10 + 9'cY_11 + 10'cY_12 + 11'cY_13 + 12'cY_14 + 13'cY_15 + 14'cY_16 + 15'cY_17 + 16'cY_18 + 17'cY_19 + -9'L_0 + -9'L_1 + -8'L_2 + -8'L_3 + -7'L_4 + -7'L_5 + -6'L_6 + -6'L_7 + -5'L_8 + -5'L_9 + -4'L_10 + -4'L_11 + -3'L_12 + -3'L_13 + -2'L_14 + -2'L_15 + -1'L_16 + -1'L_17 + -1'L_21 + -1'L_22 + -2'L_23 + -2'L_24 + -3'L_25 + -3'L_26 + -4'L_27 + -4'L_28 + -5'L_29 + -5'L_30 + -6'L_31 + -6'L_32 + -7'L_33 + -7'L_34 + -8'L_35 + -8'L_36 + -9'L_37 + -9'L_38 + R_3 + -1'R_6 + -1'R_7 + -2'R_8 + -2'R_9 + -3'R_10 + -3'R_11 + -4'R_12 + -4'R_13 + -5'R_14 + -5'R_15 + -6'R_16 + -6'R_17 + -7'R_18 + -7'R_19 + -8'R_20 + -8'R_21 + -9'R_22 + -10'R_23 + -12'R_24 + -13'R_25 + -15'R_26 + -16'R_27 + -18'R_28 + -19'R_29 + -21'R_30 + -22'R_31 + -24'R_32 + -25'R_33 + -27'R_34 + -28'R_35 + -30'R_36 + -31'R_37 + -33'R_38 + -34'R_39 = -332
invariant :P_11_1 + P_11_2 + P_11_3 + P_11_4 + P_11_5 + P_11_6 + P_11_7 + P_11_8 + P_11_9 + P_11_10 + P_11_11 + P_11_12 + P_11_13 + P_11_14 + P_11_15 + P_11_16 + P_11_17 + P_11_18 + P_12_2 + P_12_3 + P_12_4 + P_12_5 + P_12_6 + P_12_7 + P_12_8 + P_12_9 + P_12_10 + P_12_11 + P_12_12 + P_12_13 + P_12_14 + P_12_15 + P_12_16 + P_12_17 + P_13_3 + P_13_4 + P_13_5 + P_13_6 + P_13_7 + P_13_8 + P_13_9 + P_13_10 + P_13_11 + P_13_12 + P_13_13 + P_13_14 + P_13_15 + P_13_16 + P_14_4 + P_14_5 + P_14_6 + P_14_7 + P_14_8 + P_14_9 + P_14_10 + P_14_11 + P_14_12 + P_14_13 + P_14_14 + P_14_15 + P_15_5 + P_15_6 + P_15_7 + P_15_8 + P_15_9 + P_15_10 + P_15_11 + P_15_12 + P_15_13 + P_15_14 + P_16_6 + P_16_7 + P_16_8 + P_16_9 + P_16_10 + P_16_11 + P_16_12 + P_16_13 + P_17_7 + P_17_8 + P_17_9 + P_17_10 + P_17_11 + P_17_12 + P_18_8 + P_18_9 + P_18_10 + P_18_11 + P_19_9 + P_19_10 + cX_11 + cX_12 + cX_13 + cX_14 + cX_15 + cX_16 + cX_17 + cX_18 + cX_19 + -1'L_30 + -1'L_31 + -1'L_32 + -1'L_33 + -1'L_34 + -1'L_35 + -1'L_36 + -1'L_37 + -1'L_38 + -1'R_31 + -1'R_32 + -1'R_33 + -1'R_34 + -1'R_35 + -1'R_36 + -1'R_37 + -1'R_38 + -1'R_39 = -9
invariant :P_0_17 + P_3_17 + P_4_16 + P_4_17 + P_4_18 + P_5_15 + P_5_16 + 2'P_5_17 + P_5_18 + P_6_14 + P_6_15 + 2'P_6_16 + 2'P_6_17 + P_6_18 + P_7_13 + P_7_14 + 2'P_7_15 + 2'P_7_16 + 2'P_7_17 + P_7_18 + P_8_12 + P_8_13 + 2'P_8_14 + 2'P_8_15 + 2'P_8_16 + 2'P_8_17 + P_8_18 + P_9_11 + P_9_12 + 2'P_9_13 + 2'P_9_14 + 2'P_9_15 + 2'P_9_16 + 2'P_9_17 + P_9_18 + P_10_10 + P_10_11 + 2'P_10_12 + 2'P_10_13 + 2'P_10_14 + 2'P_10_15 + 2'P_10_16 + 2'P_10_17 + P_10_18 + P_11_9 + P_11_10 + 2'P_11_11 + 2'P_11_12 + 2'P_11_13 + 2'P_11_14 + 2'P_11_15 + 2'P_11_16 + 2'P_11_17 + P_11_18 + P_12_8 + P_12_9 + 2'P_12_10 + 2'P_12_11 + 2'P_12_12 + 2'P_12_13 + 2'P_12_14 + 2'P_12_15 + 2'P_12_16 + 2'P_12_17 + P_12_18 + P_13_7 + P_13_8 + 2'P_13_9 + 2'P_13_10 + 2'P_13_11 + 2'P_13_12 + 2'P_13_13 + 2'P_13_14 + 2'P_13_15 + 2'P_13_16 + 2'P_13_17 + P_13_18 + P_14_6 + P_14_7 + 2'P_14_8 + 2'P_14_9 + 2'P_14_10 + 2'P_14_11 + 2'P_14_12 + 2'P_14_13 + 2'P_14_14 + 2'P_14_15 + 2'P_14_16 + 2'P_14_17 + P_14_18 + P_15_5 + P_15_6 + 2'P_15_7 + 2'P_15_8 + 2'P_15_9 + 2'P_15_10 + 2'P_15_11 + 2'P_15_12 + 2'P_15_13 + 2'P_15_14 + 2'P_15_15 + 2'P_15_16 + 2'P_15_17 + P_15_18 + P_16_4 + P_16_5 + 2'P_16_6 + 2'P_16_7 + 2'P_16_8 + 2'P_16_9 + 2'P_16_10 + 2'P_16_11 + 2'P_16_12 + 2'P_16_13 + 2'P_16_14 + 2'P_16_15 + 2'P_16_16 + 2'P_16_17 + P_16_18 + P_17_3 + P_17_4 + 2'P_17_5 + 2'P_17_6 + 2'P_17_7 + 2'P_17_8 + 2'P_17_9 + 2'P_17_10 + 2'P_17_11 + 2'P_17_12 + 2'P_17_13 + 2'P_17_14 + 2'P_17_15 + 2'P_17_16 + 2'P_17_17 + P_17_18 + P_18_2 + P_18_3 + 2'P_18_4 + 2'P_18_5 + 2'P_18_6 + 2'P_18_7 + 2'P_18_8 + 2'P_18_9 + 2'P_18_10 + 2'P_18_11 + 2'P_18_12 + 2'P_18_13 + 2'P_18_14 + 2'P_18_15 + 2'P_18_16 + 2'P_18_17 + P_18_18 + P_19_3 + P_19_4 + P_19_5 + P_19_6 + P_19_7 + P_19_8 + P_19_9 + P_19_10 + P_19_11 + P_19_12 + P_19_13 + P_19_14 + P_19_15 + P_19_16 + P_19_17 + -1'cX_19 + -1'cY_18 + -2'cY_19 + 2'L_0 + L_1 + L_2 + L_38 + R_21 + R_22 + 2'R_23 + 2'R_24 + 2'R_25 + 2'R_26 + 2'R_27 + 2'R_28 + 2'R_29 + 2'R_30 + 2'R_31 + 2'R_32 + 2'R_33 + 2'R_34 + 2'R_35 + 2'R_36 + 2'R_37 + 2'R_38 + 3'R_39 = 38
invariant :P_2_8 + P_3_7 + P_3_8 + P_3_9 + P_4_6 + P_4_7 + 2'P_4_8 + P_4_9 + P_4_10 + P_5_5 + P_5_6 + 2'P_5_7 + 2'P_5_8 + 2'P_5_9 + P_5_10 + P_5_11 + P_6_4 + P_6_5 + 2'P_6_6 + 2'P_6_7 + 3'P_6_8 + 2'P_6_9 + 2'P_6_10 + P_6_11 + P_6_12 + P_7_3 + P_7_4 + 2'P_7_5 + 2'P_7_6 + 3'P_7_7 + 3'P_7_8 + 3'P_7_9 + 2'P_7_10 + 2'P_7_11 + P_7_12 + P_7_13 + P_8_2 + P_8_3 + 2'P_8_4 + 2'P_8_5 + 3'P_8_6 + 3'P_8_7 + 4'P_8_8 + 3'P_8_9 + 3'P_8_10 + 2'P_8_11 + 2'P_8_12 + P_8_13 + P_8_14 + P_9_3 + P_9_4 + 2'P_9_5 + 2'P_9_6 + 3'P_9_7 + 3'P_9_8 + 3'P_9_9 + 2'P_9_10 + 2'P_9_11 + P_9_12 + P_9_13 + -1'P_9_16 + -1'P_9_17 + -1'P_9_18 + P_10_4 + P_10_5 + 2'P_10_6 + 2'P_10_7 + 3'P_10_8 + 2'P_10_9 + 2'P_10_10 + P_10_11 + P_10_12 + -1'P_10_15 + -1'P_10_16 + -2'P_10_17 + -1'P_10_18 + P_11_5 + P_11_6 + 2'P_11_7 + 2'P_11_8 + 2'P_11_9 + P_11_10 + P_11_11 + -1'P_11_14 + -1'P_11_15 + -2'P_11_16 + -1'P_11_17 + -1'P_11_18 + P_12_6 + P_12_7 + 2'P_12_8 + P_12_9 + P_12_10 + -1'P_12_13 + -1'P_12_14 + -2'P_12_15 + -1'P_12_16 + -1'P_12_17 + P_13_7 + P_13_8 + P_13_9 + -1'P_13_12 + -1'P_13_13 + -2'P_13_14 + -1'P_13_15 + -1'P_13_16 + P_14_8 + -1'P_14_11 + -1'P_14_12 + -2'P_14_13 + -1'P_14_14 + -1'P_14_15 + -1'P_15_10 + -1'P_15_11 + -2'P_15_12 + -1'P_15_13 + -1'P_15_14 + -1'P_16_9 + -1'P_16_10 + -2'P_16_11 + -1'P_16_12 + -1'P_16_13 + -1'P_17_9 + -2'P_17_10 + -1'P_17_11 + -1'P_17_12 + -1'P_18_9 + -1'P_18_10 + -1'P_18_11 + -1'cX_9 + -2'cX_10 + -3'cX_11 + -4'cX_12 + -5'cX_13 + -6'cX_14 + -7'cX_15 + -8'cX_16 + -9'cX_17 + -10'cX_18 + -11'cX_19 + -1'cY_9 + -2'cY_10 + -3'cY_11 + -4'cY_12 + -5'cY_13 + -6'cY_14 + -7'cY_15 + -8'cY_16 + -9'cY_17 + -10'cY_18 + -11'cY_19 + 6'L_0 + 5'L_1 + 5'L_2 + 4'L_3 + 4'L_4 + 3'L_5 + 3'L_6 + 2'L_7 + 2'L_8 + L_9 + L_10 + L_28 + L_29 + 2'L_30 + 2'L_31 + 3'L_32 + 3'L_33 + 4'L_34 + 4'L_35 + 5'L_36 + 5'L_37 + 6'L_38 + R_11 + R_12 + 2'R_13 + 2'R_14 + 3'R_15 + 3'R_16 + 4'R_17 + 4'R_18 + 5'R_19 + 5'R_20 + 6'R_21 + 6'R_22 + 7'R_23 + 7'R_24 + 8'R_25 + 8'R_26 + 9'R_27 + 9'R_28 + 11'R_29 + 12'R_30 + 14'R_31 + 15'R_32 + 16'R_33 + 17'R_34 + 18'R_35 + 19'R_36 + 20'R_37 + 21'R_38 + 22'R_39 = 215
invariant :P_2_9 + P_3_8 + P_3_9 + P_3_10 + P_4_7 + P_4_8 + 2'P_4_9 + P_4_10 + P_4_11 + P_5_6 + P_5_7 + 2'P_5_8 + 2'P_5_9 + 2'P_5_10 + P_5_11 + P_5_12 + P_6_5 + P_6_6 + 2'P_6_7 + 2'P_6_8 + 3'P_6_9 + 2'P_6_10 + 2'P_6_11 + P_6_12 + P_6_13 + P_7_4 + P_7_5 + 2'P_7_6 + 2'P_7_7 + 3'P_7_8 + 3'P_7_9 + 3'P_7_10 + 2'P_7_11 + 2'P_7_12 + P_7_13 + P_7_14 + P_8_3 + P_8_4 + 2'P_8_5 + 2'P_8_6 + 3'P_8_7 + 3'P_8_8 + 4'P_8_9 + 3'P_8_10 + 3'P_8_11 + 2'P_8_12 + 2'P_8_13 + P_8_14 + P_8_15 + P_9_2 + P_9_3 + 2'P_9_4 + 2'P_9_5 + 3'P_9_6 + 3'P_9_7 + 4'P_9_8 + 4'P_9_9 + 4'P_9_10 + 3'P_9_11 + 3'P_9_12 + 2'P_9_13 + 2'P_9_14 + P_9_15 + P_9_16 + P_10_3 + P_10_4 + 2'P_10_5 + 2'P_10_6 + 3'P_10_7 + 3'P_10_8 + 4'P_10_9 + 3'P_10_10 + 3'P_10_11 + 2'P_10_12 + 2'P_10_13 + P_10_14 + P_10_15 + -1'P_10_18 + P_11_4 + P_11_5 + 2'P_11_6 + 2'P_11_7 + 3'P_11_8 + 3'P_11_9 + 3'P_11_10 + 2'P_11_11 + 2'P_11_12 + P_11_13 + P_11_14 + -1'P_11_17 + P_12_5 + P_12_6 + 2'P_12_7 + 2'P_12_8 + 3'P_12_9 + 2'P_12_10 + 2'P_12_11 + P_12_12 + P_12_13 + -1'P_12_16 + P_13_6 + P_13_7 + 2'P_13_8 + 2'P_13_9 + 2'P_13_10 + P_13_11 + P_13_12 + -1'P_13_15 + P_14_7 + P_14_8 + 2'P_14_9 + P_14_10 + P_14_11 + -1'P_14_14 + P_15_8 + P_15_9 + P_15_10 + -1'P_15_13 + P_16_9 + -1'P_16_12 + -1'P_17_11 + -1'P_18_10 + -1'cX_10 + -2'cX_11 + -3'cX_12 + -4'cX_13 + -5'cX_14 + -6'cX_15 + -7'cX_16 + -8'cX_17 + -9'cX_18 + -10'cX_19 + -1'cY_10 + -2'cY_11 + -3'cY_12 + -4'cY_13 + -5'cY_14 + -6'cY_15 + -7'cY_16 + -8'cY_17 + -9'cY_18 + -10'cY_19 + 5'L_0 + 5'L_1 + 4'L_2 + 4'L_3 + 3'L_4 + 3'L_5 + 2'L_6 + 2'L_7 + L_8 + L_9 + L_29 + L_30 + 2'L_31 + 2'L_32 + 3'L_33 + 3'L_34 + 4'L_35 + 4'L_36 + 5'L_37 + 5'L_38 + R_12 + R_13 + 2'R_14 + 2'R_15 + 3'R_16 + 3'R_17 + 4'R_18 + 4'R_19 + 5'R_20 + 5'R_21 + 6'R_22 + 6'R_23 + 7'R_24 + 7'R_25 + 8'R_26 + 8'R_27 + 9'R_28 + 9'R_29 + 11'R_30 + 12'R_31 + 13'R_32 + 14'R_33 + 15'R_34 + 16'R_35 + 17'R_36 + 18'R_37 + 19'R_38 + 20'R_39 = 195
FORMULA NQueens-PT-20-ReachabilityCardinality-00 FALSE TECHNIQUES SAT_SMT K_INDUCTION(0)
FORMULA NQueens-PT-20-ReachabilityCardinality-01 FALSE TECHNIQUES SAT_SMT K_INDUCTION(0)
Running compilation step : CommandLine [args=[gcc, -c, -I/home/mcc/BenchKit//lts_install_dir//include, -I., -std=c99, -fPIC, -O3, model.c], workingDir=/home/mcc/execution]
FORMULA NQueens-PT-20-ReachabilityCardinality-05 FALSE TECHNIQUES SAT_SMT K_INDUCTION(0)
FORMULA NQueens-PT-20-ReachabilityCardinality-06 FALSE TECHNIQUES SAT_SMT K_INDUCTION(0)
FORMULA NQueens-PT-20-ReachabilityCardinality-07 FALSE TECHNIQUES SAT_SMT K_INDUCTION(0)
FORMULA NQueens-PT-20-ReachabilityCardinality-08 FALSE TECHNIQUES SAT_SMT K_INDUCTION(0)
Compilation finished in 6540 ms.
Running link step : CommandLine [args=[gcc, -shared, -o, gal.so, model.o], workingDir=/home/mcc/execution]
Link finished in 55 ms.
Running LTSmin : CommandLine [args=[/home/mcc/BenchKit//lts_install_dir//bin/pins2lts-mc, ./gal.so, --threads=1, -p, --pins-guards, --when, -i, NQueensPT20ReachabilityCardinality03==true], workingDir=/home/mcc/execution]
FORMULA NQueens-PT-20-ReachabilityCardinality-09 FALSE TECHNIQUES SAT_SMT K_INDUCTION(0)
FORMULA NQueens-PT-20-ReachabilityCardinality-11 FALSE TECHNIQUES SAT_SMT K_INDUCTION(0)
FORMULA NQueens-PT-20-ReachabilityCardinality-12 FALSE TECHNIQUES SAT_SMT K_INDUCTION(0)
FORMULA NQueens-PT-20-ReachabilityCardinality-13 FALSE TECHNIQUES SAT_SMT K_INDUCTION(0)
FORMULA NQueens-PT-20-ReachabilityCardinality-14 TRUE TECHNIQUES SAT_SMT K_INDUCTION(0)
FORMULA NQueens-PT-20-ReachabilityCardinality-15 FALSE TECHNIQUES SAT_SMT K_INDUCTION(0)
FORMULA NQueens-PT-20-ReachabilityCardinality-03 FALSE TECHNIQUES SAT_SMT BMC(2)
FORMULA NQueens-PT-20-ReachabilityCardinality-04 TRUE TECHNIQUES SAT_SMT BMC(2)
LTSmin run took 144669 ms.
Found Violation
FORMULA NQueens-PT-20-ReachabilityCardinality-03 FALSE TECHNIQUES PARTIAL_ORDER EXPLICIT LTSMIN SAT_SMT
Running LTSmin : CommandLine [args=[/home/mcc/BenchKit//lts_install_dir//bin/pins2lts-mc, ./gal.so, --threads=1, -p, --pins-guards, --when, -i, NQueensPT20ReachabilityCardinality10==true], workingDir=/home/mcc/execution]
WARNING : LTSmin timed out (>240 s) on command CommandLine [args=[/home/mcc/BenchKit//lts_install_dir//bin/pins2lts-mc, ./gal.so, --threads=1, -p, --pins-guards, --when, -i, NQueensPT20ReachabilityCardinality10==true], workingDir=/home/mcc/execution]
Retrying LTSmin with larger timeout 1920 s
Running LTSmin : CommandLine [args=[/home/mcc/BenchKit//lts_install_dir//bin/pins2lts-mc, ./gal.so, --threads=1, -p, --pins-guards, --when, -i, NQueensPT20ReachabilityCardinality10==true], workingDir=/home/mcc/execution]
FORMULA NQueens-PT-20-ReachabilityCardinality-10 TRUE TECHNIQUES SAT_SMT BMC(2)
LTSmin run took 242072 ms.
Found Violation
FORMULA NQueens-PT-20-ReachabilityCardinality-10 TRUE TECHNIQUES PARTIAL_ORDER EXPLICIT LTSMIN SAT_SMT
ITS tools runner thread asked to quit. Dying gracefully.

BK_STOP 1527929576254

--------------------
content from stderr:

+ export BINDIR=/home/mcc/BenchKit/
+ BINDIR=/home/mcc/BenchKit/
++ pwd
+ export MODEL=/home/mcc/execution
+ MODEL=/home/mcc/execution
+ /home/mcc/BenchKit//runeclipse.sh /home/mcc/execution ReachabilityCardinality -its -ltsminpath /home/mcc/BenchKit//lts_install_dir/ -smt
+ ulimit -s 65536
+ [[ -z '' ]]
+ export LTSMIN_MEM_SIZE=8589934592
+ LTSMIN_MEM_SIZE=8589934592
+ /home/mcc/BenchKit//itstools/its-tools -consoleLog -data /home/mcc/execution/workspace -pnfolder /home/mcc/execution -examination ReachabilityCardinality -z3path /home/mcc/BenchKit//z3/bin/z3 -yices2path /home/mcc/BenchKit//yices/bin/yices -its -ltsminpath /home/mcc/BenchKit//lts_install_dir/ -smt -vmargs -Dosgi.locking=none -Declipse.stateSaveDelayInterval=-1 -Dosgi.configuration.area=/tmp/.eclipse -Xss8m -Xms40m -Xmx8192m -Dfile.encoding=UTF-8 -Dosgi.requiredJavaVersion=1.6
Jun 02, 2018 8:42:07 AM fr.lip6.move.gal.application.Application start
INFO: Running its-tools with arguments : [-pnfolder, /home/mcc/execution, -examination, ReachabilityCardinality, -z3path, /home/mcc/BenchKit//z3/bin/z3, -yices2path, /home/mcc/BenchKit//yices/bin/yices, -its, -ltsminpath, /home/mcc/BenchKit//lts_install_dir/, -smt]
Jun 02, 2018 8:42:07 AM fr.lip6.move.gal.application.MccTranslator transformPNML
INFO: Parsing pnml file : /home/mcc/execution/model.pnml
Jun 02, 2018 8:42:07 AM fr.lip6.move.gal.nupn.PTNetReader loadFromXML
INFO: Load time of PNML (sax parser for PT used): 108 ms
Jun 02, 2018 8:42:07 AM fr.lip6.move.gal.pnml.togal.PTGALTransformer handlePage
INFO: Transformed 520 places.
Jun 02, 2018 8:42:07 AM fr.lip6.move.gal.pnml.togal.PTGALTransformer handlePage
INFO: Transformed 400 transitions.
Jun 02, 2018 8:42:07 AM fr.lip6.move.serialization.SerializationUtil systemToFile
INFO: Time to serialize gal into /home/mcc/execution/model.pnml.img.gal : 40 ms
Jun 02, 2018 8:42:08 AM fr.lip6.move.gal.instantiate.DomainAnalyzer computeVariableDomains
INFO: Found a total of 2 fixed domain variables (out of 520 variables) in GAL type NQueens_PT_20
Jun 02, 2018 8:42:08 AM fr.lip6.move.gal.instantiate.Simplifier printConstantVars
INFO: Found a total of 2 constant array cells/variables (out of 520 variables) in type NQueens_PT_20
Jun 02, 2018 8:42:08 AM fr.lip6.move.gal.instantiate.Simplifier printConstantVars
INFO: R_0,L_39,
Jun 02, 2018 8:42:08 AM fr.lip6.move.gal.instantiate.DomainAnalyzer computeVariableDomains
INFO: Found a total of 2 fixed domain variables (out of 520 variables) in GAL type NQueens_PT_20
Jun 02, 2018 8:42:08 AM fr.lip6.move.gal.instantiate.Simplifier printConstantVars
INFO: Found a total of 2 constant array cells/variables (out of 520 variables) in type NQueens_PT_20
Jun 02, 2018 8:42:08 AM fr.lip6.move.gal.instantiate.Simplifier printConstantVars
INFO: R_0,L_39,
Jun 02, 2018 8:42:08 AM fr.lip6.move.gal.instantiate.Simplifier simplifyConstantVariables
INFO: Removed 2 constant variables :R_0=1, L_39=1
Jun 02, 2018 8:42:08 AM fr.lip6.move.gal.instantiate.Simplifier simplifyConstantVariables
INFO: Simplified 3 expressions due to constant valuations.
Jun 02, 2018 8:42:08 AM fr.lip6.move.gal.instantiate.GALRewriter flatten
INFO: Flatten gal took : 213 ms
Jun 02, 2018 8:42:08 AM fr.lip6.move.gal.instantiate.GALRewriter flatten
INFO: Flatten gal took : 246 ms
Jun 02, 2018 8:42:08 AM fr.lip6.move.gal.instantiate.GALRewriter flatten
INFO: Flatten gal took : 319 ms
Jun 02, 2018 8:42:08 AM fr.lip6.move.serialization.SerializationUtil systemToFile
INFO: Time to serialize gal into /home/mcc/execution/ReachabilityCardinality.pnml.gal : 18 ms
Jun 02, 2018 8:42:08 AM fr.lip6.move.serialization.SerializationUtil serializePropertiesForITSTools
INFO: Time to serialize properties into /home/mcc/execution/ReachabilityCardinality.prop : 0 ms
Jun 02, 2018 8:42:08 AM fr.lip6.move.gal.semantics.DeterministicNextBuilder getDeterministicNext
INFO: Input system was already deterministic with 400 transitions.
Jun 02, 2018 8:42:08 AM fr.lip6.move.gal.semantics.DeterministicNextBuilder getDeterministicNext
INFO: Input system was already deterministic with 400 transitions.
Jun 02, 2018 8:42:09 AM fr.lip6.move.gal.gal2smt.Gal2SMTFrontEnd checkProperties
INFO: Ran tautology test, simplified 0 / 15 in 732 ms.
Jun 02, 2018 8:42:09 AM fr.lip6.move.gal.gal2smt.bmc.KInductionSolver computeAndDeclareInvariants
INFO: Computed 118 place invariants in 231 ms
Jun 02, 2018 8:42:09 AM fr.lip6.move.gal.gal2smt.Gal2SMTFrontEnd runBMC
INFO: BMC solution for property NQueens-PT-20-ReachabilityCardinality-00(UNSAT) depth K=0 took 21 ms
Jun 02, 2018 8:42:09 AM fr.lip6.move.gal.gal2smt.Gal2SMTFrontEnd runBMC
INFO: BMC solution for property NQueens-PT-20-ReachabilityCardinality-01(UNSAT) depth K=0 took 10 ms
Jun 02, 2018 8:42:09 AM fr.lip6.move.gal.gal2smt.Gal2SMTFrontEnd runBMC
INFO: BMC solution for property NQueens-PT-20-ReachabilityCardinality-03(UNSAT) depth K=0 took 10 ms
Jun 02, 2018 8:42:09 AM fr.lip6.move.gal.gal2smt.Gal2SMTFrontEnd runBMC
INFO: BMC solution for property NQueens-PT-20-ReachabilityCardinality-04(UNSAT) depth K=0 took 12 ms
Jun 02, 2018 8:42:09 AM fr.lip6.move.gal.gal2smt.Gal2SMTFrontEnd runBMC
INFO: BMC solution for property NQueens-PT-20-ReachabilityCardinality-05(UNSAT) depth K=0 took 19 ms
Jun 02, 2018 8:42:09 AM fr.lip6.move.gal.gal2smt.Gal2SMTFrontEnd runBMC
INFO: BMC solution for property NQueens-PT-20-ReachabilityCardinality-06(UNSAT) depth K=0 took 16 ms
Jun 02, 2018 8:42:09 AM fr.lip6.move.gal.semantics.DeterministicNextBuilder getDeterministicNext
INFO: Input system was already deterministic with 400 transitions.
Jun 02, 2018 8:42:09 AM fr.lip6.move.gal.gal2smt.Gal2SMTFrontEnd runBMC
INFO: BMC solution for property NQueens-PT-20-ReachabilityCardinality-07(UNSAT) depth K=0 took 20 ms
Jun 02, 2018 8:42:09 AM fr.lip6.move.gal.gal2smt.Gal2SMTFrontEnd runBMC
INFO: BMC solution for property NQueens-PT-20-ReachabilityCardinality-08(UNSAT) depth K=0 took 17 ms
Jun 02, 2018 8:42:09 AM fr.lip6.move.gal.gal2smt.Gal2SMTFrontEnd runBMC
INFO: BMC solution for property NQueens-PT-20-ReachabilityCardinality-09(UNSAT) depth K=0 took 16 ms
Jun 02, 2018 8:42:09 AM fr.lip6.move.gal.gal2smt.Gal2SMTFrontEnd runBMC
INFO: BMC solution for property NQueens-PT-20-ReachabilityCardinality-10(UNSAT) depth K=0 took 5 ms
Jun 02, 2018 8:42:09 AM fr.lip6.move.gal.gal2smt.Gal2SMTFrontEnd runBMC
INFO: BMC solution for property NQueens-PT-20-ReachabilityCardinality-11(UNSAT) depth K=0 took 16 ms
Jun 02, 2018 8:42:09 AM fr.lip6.move.gal.gal2smt.Gal2SMTFrontEnd runBMC
INFO: BMC solution for property NQueens-PT-20-ReachabilityCardinality-12(UNSAT) depth K=0 took 7 ms
Jun 02, 2018 8:42:09 AM fr.lip6.move.gal.gal2smt.Gal2SMTFrontEnd runBMC
INFO: BMC solution for property NQueens-PT-20-ReachabilityCardinality-13(UNSAT) depth K=0 took 12 ms
Jun 02, 2018 8:42:09 AM fr.lip6.move.gal.gal2smt.Gal2SMTFrontEnd runBMC
INFO: BMC solution for property NQueens-PT-20-ReachabilityCardinality-14(UNSAT) depth K=0 took 10 ms
Jun 02, 2018 8:42:09 AM fr.lip6.move.gal.gal2smt.Gal2SMTFrontEnd runBMC
INFO: BMC solution for property NQueens-PT-20-ReachabilityCardinality-15(UNSAT) depth K=0 took 12 ms
Jun 02, 2018 8:42:09 AM fr.lip6.move.gal.gal2smt.bmc.KInductionSolver computeAndDeclareInvariants
INFO: Computed 118 place invariants in 285 ms
Jun 02, 2018 8:42:10 AM fr.lip6.move.gal.gal2smt.Gal2SMTFrontEnd runBMC
INFO: BMC solution for property NQueens-PT-20-ReachabilityCardinality-00(UNSAT) depth K=1 took 516 ms
Jun 02, 2018 8:42:10 AM fr.lip6.move.gal.gal2smt.Gal2SMTFrontEnd runBMC
INFO: BMC solution for property NQueens-PT-20-ReachabilityCardinality-01(UNSAT) depth K=1 took 462 ms
Jun 02, 2018 8:42:11 AM fr.lip6.move.gal.gal2smt.Gal2SMTFrontEnd runBMC
INFO: BMC solution for property NQueens-PT-20-ReachabilityCardinality-03(UNSAT) depth K=1 took 536 ms
Jun 02, 2018 8:42:11 AM fr.lip6.move.gal.gal2smt.Gal2SMTFrontEnd runBMC
INFO: BMC solution for property NQueens-PT-20-ReachabilityCardinality-04(UNSAT) depth K=1 took 534 ms
Jun 02, 2018 8:42:12 AM fr.lip6.move.gal.gal2smt.Gal2SMTFrontEnd runBMC
INFO: BMC solution for property NQueens-PT-20-ReachabilityCardinality-05(UNSAT) depth K=1 took 774 ms
Jun 02, 2018 8:42:12 AM fr.lip6.move.gal.gal2smt.Gal2SMTFrontEnd runBMC
INFO: BMC solution for property NQueens-PT-20-ReachabilityCardinality-06(UNSAT) depth K=1 took 442 ms
Jun 02, 2018 8:42:13 AM fr.lip6.move.gal.gal2smt.Gal2SMTFrontEnd runBMC
INFO: BMC solution for property NQueens-PT-20-ReachabilityCardinality-07(UNSAT) depth K=1 took 407 ms
Jun 02, 2018 8:42:13 AM fr.lip6.move.gal.gal2smt.Gal2SMTFrontEnd runBMC
INFO: BMC solution for property NQueens-PT-20-ReachabilityCardinality-08(UNSAT) depth K=1 took 413 ms
Jun 02, 2018 8:42:13 AM fr.lip6.move.gal.gal2smt.bmc.KInductionSolver init
INFO: Proved 518 variables to be positive in 4620 ms
Jun 02, 2018 8:42:13 AM fr.lip6.move.gal.gal2smt.bmc.NecessaryEnablingsolver computeAblingMatrix
INFO: Computing symmetric may disable matrix : 400 transitions.
Jun 02, 2018 8:42:13 AM fr.lip6.move.gal.gal2smt.bmc.NecessaryEnablingsolver printStats
INFO: Computation of disable matrix completed :0/400 took 1 ms. Total solver calls (SAT/UNSAT): 0(0/0)
Jun 02, 2018 8:42:13 AM fr.lip6.move.gal.gal2smt.bmc.NecessaryEnablingsolver printStats
INFO: Computation of Complete disable matrix. took 65 ms. Total solver calls (SAT/UNSAT): 0(0/0)
Jun 02, 2018 8:42:13 AM fr.lip6.move.gal.gal2smt.bmc.NecessaryEnablingsolver computeAblingMatrix
INFO: Computing symmetric may enable matrix : 400 transitions.
Jun 02, 2018 8:42:13 AM fr.lip6.move.gal.gal2smt.bmc.NecessaryEnablingsolver printStats
INFO: Computation of Complete enable matrix. took 42 ms. Total solver calls (SAT/UNSAT): 0(0/0)
Jun 02, 2018 8:42:14 AM fr.lip6.move.gal.gal2smt.Gal2SMTFrontEnd runBMC
INFO: BMC solution for property NQueens-PT-20-ReachabilityCardinality-09(UNSAT) depth K=1 took 426 ms
Jun 02, 2018 8:42:14 AM fr.lip6.move.gal.gal2smt.bmc.KInductionSolver init
INFO: Proved 518 variables to be positive in 4750 ms
Jun 02, 2018 8:42:14 AM fr.lip6.move.gal.gal2smt.Gal2SMTFrontEnd runBMC
INFO: BMC solution for property NQueens-PT-20-ReachabilityCardinality-10(UNSAT) depth K=1 took 435 ms
Jun 02, 2018 8:42:14 AM fr.lip6.move.gal.gal2smt.Gal2SMTFrontEnd runBMC
INFO: BMC solution for property NQueens-PT-20-ReachabilityCardinality-11(UNSAT) depth K=1 took 406 ms
Jun 02, 2018 8:42:14 AM fr.lip6.move.gal.gal2smt.Gal2SMTFrontEnd runKInduction
INFO: Induction result is UNSAT, proved UNreachability of reachability predicate NQueens-PT-20-ReachabilityCardinality-00
Jun 02, 2018 8:42:14 AM fr.lip6.move.gal.gal2smt.Gal2SMTFrontEnd runKInduction
INFO: Induction result is UNSAT, successfully proved induction at step 0 for NQueens-PT-20-ReachabilityCardinality-00
Jun 02, 2018 8:42:14 AM fr.lip6.move.gal.gal2smt.Gal2SMTFrontEnd runKInduction
INFO: KInduction solution for property NQueens-PT-20-ReachabilityCardinality-00(FALSE) depth K=0 took 539 ms
Jun 02, 2018 8:42:15 AM fr.lip6.move.gal.gal2smt.Gal2SMTFrontEnd runKInduction
INFO: Induction result is UNSAT, proved UNreachability of reachability predicate NQueens-PT-20-ReachabilityCardinality-01
Jun 02, 2018 8:42:15 AM fr.lip6.move.gal.gal2smt.Gal2SMTFrontEnd runKInduction
INFO: Induction result is UNSAT, successfully proved induction at step 0 for NQueens-PT-20-ReachabilityCardinality-01
Jun 02, 2018 8:42:15 AM fr.lip6.move.gal.gal2smt.Gal2SMTFrontEnd runKInduction
INFO: KInduction solution for property NQueens-PT-20-ReachabilityCardinality-01(FALSE) depth K=0 took 498 ms
Jun 02, 2018 8:42:15 AM fr.lip6.move.gal.gal2smt.Gal2SMTFrontEnd runBMC
INFO: BMC solution for property NQueens-PT-20-ReachabilityCardinality-12(UNSAT) depth K=1 took 714 ms
Jun 02, 2018 8:42:15 AM fr.lip6.move.gal.gal2smt.Gal2SMTFrontEnd runBMC
INFO: BMC solution for property NQueens-PT-20-ReachabilityCardinality-13(UNSAT) depth K=1 took 418 ms
Jun 02, 2018 8:42:16 AM fr.lip6.move.gal.gal2smt.Gal2SMTFrontEnd runBMC
INFO: BMC solution for property NQueens-PT-20-ReachabilityCardinality-14(UNSAT) depth K=1 took 404 ms
Jun 02, 2018 8:42:16 AM fr.lip6.move.gal.gal2smt.Gal2SMTFrontEnd runBMC
INFO: BMC solution for property NQueens-PT-20-ReachabilityCardinality-15(UNSAT) depth K=1 took 415 ms
Jun 02, 2018 8:42:19 AM fr.lip6.move.gal.gal2smt.bmc.NecessaryEnablingsolver computeCoEnablingMatrix
INFO: Computing symmetric co enabling matrix : 400 transitions.
Jun 02, 2018 8:42:21 AM fr.lip6.move.gal.gal2smt.Gal2SMTFrontEnd runKInduction
INFO: Induction result is SAT, non conclusive we might be starting from unreachable statesNQueens-PT-20-ReachabilityCardinality-03
Jun 02, 2018 8:42:21 AM fr.lip6.move.gal.gal2smt.Gal2SMTFrontEnd runKInduction
INFO: KInduction solution for property NQueens-PT-20-ReachabilityCardinality-03(SAT) depth K=0 took 5903 ms
SMT solver raised 'unknown', retrying with same input.
SMT solver raised 'unknown' twice, overapproximating result to 1.
Jun 02, 2018 8:42:21 AM fr.lip6.move.gal.gal2smt.bmc.NecessaryEnablingsolver printStats
INFO: Computation of co-enabling matrix(0/400) took 2249 ms. Total solver calls (SAT/UNSAT): 2(2/0)
Jun 02, 2018 8:42:21 AM fr.lip6.move.gal.gal2smt.bmc.NecessaryEnablingsolver printStats
INFO: Computation of Finished co-enabling matrix. took 2261 ms. Total solver calls (SAT/UNSAT): 2(2/0)
Jun 02, 2018 8:42:21 AM fr.lip6.move.gal.gal2smt.bmc.NecessaryEnablingsolver computeDoNotAccord
INFO: Computing Do-Not-Accords matrix : 400 transitions.
Jun 02, 2018 8:42:21 AM fr.lip6.move.gal.gal2smt.bmc.NecessaryEnablingsolver printStats
INFO: Computation of Completed DNA matrix. took 34 ms. Total solver calls (SAT/UNSAT): 0(0/0)
Jun 02, 2018 8:42:22 AM fr.lip6.move.gal.gal2pins.Gal2PinsTransformerNext transform
INFO: Built C files in 13605ms conformant to PINS in folder :/home/mcc/execution
Jun 02, 2018 8:42:26 AM fr.lip6.move.gal.gal2smt.Gal2SMTFrontEnd runKInduction
INFO: Induction result is SAT, non conclusive we might be starting from unreachable statesNQueens-PT-20-ReachabilityCardinality-04
Jun 02, 2018 8:42:26 AM fr.lip6.move.gal.gal2smt.Gal2SMTFrontEnd runKInduction
INFO: KInduction solution for property NQueens-PT-20-ReachabilityCardinality-04(SAT) depth K=0 took 4785 ms
Jun 02, 2018 8:42:26 AM fr.lip6.move.gal.gal2smt.Gal2SMTFrontEnd runKInduction
INFO: Induction result is UNSAT, proved UNreachability of reachability predicate NQueens-PT-20-ReachabilityCardinality-05
Jun 02, 2018 8:42:26 AM fr.lip6.move.gal.gal2smt.Gal2SMTFrontEnd runKInduction
INFO: Induction result is UNSAT, successfully proved induction at step 0 for NQueens-PT-20-ReachabilityCardinality-05
Jun 02, 2018 8:42:26 AM fr.lip6.move.gal.gal2smt.Gal2SMTFrontEnd runKInduction
INFO: KInduction solution for property NQueens-PT-20-ReachabilityCardinality-05(FALSE) depth K=0 took 615 ms
Jun 02, 2018 8:42:27 AM fr.lip6.move.gal.gal2smt.Gal2SMTFrontEnd runKInduction
INFO: Induction result is UNSAT, proved UNreachability of reachability predicate NQueens-PT-20-ReachabilityCardinality-06
Jun 02, 2018 8:42:27 AM fr.lip6.move.gal.gal2smt.Gal2SMTFrontEnd runKInduction
INFO: Induction result is UNSAT, successfully proved induction at step 0 for NQueens-PT-20-ReachabilityCardinality-06
Jun 02, 2018 8:42:27 AM fr.lip6.move.gal.gal2smt.Gal2SMTFrontEnd runKInduction
INFO: KInduction solution for property NQueens-PT-20-ReachabilityCardinality-06(FALSE) depth K=0 took 650 ms
Jun 02, 2018 8:42:27 AM fr.lip6.move.gal.gal2smt.Gal2SMTFrontEnd runKInduction
INFO: Induction result is UNSAT, proved UNreachability of reachability predicate NQueens-PT-20-ReachabilityCardinality-07
Jun 02, 2018 8:42:27 AM fr.lip6.move.gal.gal2smt.Gal2SMTFrontEnd runKInduction
INFO: Induction result is UNSAT, successfully proved induction at step 0 for NQueens-PT-20-ReachabilityCardinality-07
Jun 02, 2018 8:42:27 AM fr.lip6.move.gal.gal2smt.Gal2SMTFrontEnd runKInduction
INFO: KInduction solution for property NQueens-PT-20-ReachabilityCardinality-07(FALSE) depth K=0 took 444 ms
Jun 02, 2018 8:42:28 AM fr.lip6.move.gal.gal2smt.Gal2SMTFrontEnd runKInduction
INFO: Induction result is UNSAT, proved UNreachability of reachability predicate NQueens-PT-20-ReachabilityCardinality-08
Jun 02, 2018 8:42:28 AM fr.lip6.move.gal.gal2smt.Gal2SMTFrontEnd runKInduction
INFO: Induction result is UNSAT, successfully proved induction at step 0 for NQueens-PT-20-ReachabilityCardinality-08
Jun 02, 2018 8:42:28 AM fr.lip6.move.gal.gal2smt.Gal2SMTFrontEnd runKInduction
INFO: KInduction solution for property NQueens-PT-20-ReachabilityCardinality-08(FALSE) depth K=0 took 522 ms
Jun 02, 2018 8:42:28 AM fr.lip6.move.gal.gal2smt.Gal2SMTFrontEnd runKInduction
INFO: Induction result is UNSAT, proved UNreachability of reachability predicate NQueens-PT-20-ReachabilityCardinality-09
Jun 02, 2018 8:42:28 AM fr.lip6.move.gal.gal2smt.Gal2SMTFrontEnd runKInduction
INFO: Induction result is UNSAT, successfully proved induction at step 0 for NQueens-PT-20-ReachabilityCardinality-09
Jun 02, 2018 8:42:28 AM fr.lip6.move.gal.gal2smt.Gal2SMTFrontEnd runKInduction
INFO: KInduction solution for property NQueens-PT-20-ReachabilityCardinality-09(FALSE) depth K=0 took 394 ms
Jun 02, 2018 8:42:33 AM fr.lip6.move.gal.gal2smt.Gal2SMTFrontEnd runKInduction
INFO: Induction result is SAT, non conclusive we might be starting from unreachable statesNQueens-PT-20-ReachabilityCardinality-10
Jun 02, 2018 8:42:33 AM fr.lip6.move.gal.gal2smt.Gal2SMTFrontEnd runKInduction
INFO: KInduction solution for property NQueens-PT-20-ReachabilityCardinality-10(SAT) depth K=0 took 4726 ms
Jun 02, 2018 8:42:33 AM fr.lip6.move.gal.gal2smt.Gal2SMTFrontEnd runKInduction
INFO: Induction result is UNSAT, proved UNreachability of reachability predicate NQueens-PT-20-ReachabilityCardinality-11
Jun 02, 2018 8:42:33 AM fr.lip6.move.gal.gal2smt.Gal2SMTFrontEnd runKInduction
INFO: Induction result is UNSAT, successfully proved induction at step 0 for NQueens-PT-20-ReachabilityCardinality-11
Jun 02, 2018 8:42:33 AM fr.lip6.move.gal.gal2smt.Gal2SMTFrontEnd runKInduction
INFO: KInduction solution for property NQueens-PT-20-ReachabilityCardinality-11(FALSE) depth K=0 took 205 ms
Jun 02, 2018 8:42:34 AM fr.lip6.move.gal.gal2smt.Gal2SMTFrontEnd runKInduction
INFO: Induction result is UNSAT, proved UNreachability of reachability predicate NQueens-PT-20-ReachabilityCardinality-12
Jun 02, 2018 8:42:34 AM fr.lip6.move.gal.gal2smt.Gal2SMTFrontEnd runKInduction
INFO: Induction result is UNSAT, successfully proved induction at step 0 for NQueens-PT-20-ReachabilityCardinality-12
Jun 02, 2018 8:42:34 AM fr.lip6.move.gal.gal2smt.Gal2SMTFrontEnd runKInduction
INFO: KInduction solution for property NQueens-PT-20-ReachabilityCardinality-12(FALSE) depth K=0 took 714 ms
Jun 02, 2018 8:42:34 AM fr.lip6.move.gal.gal2smt.Gal2SMTFrontEnd runKInduction
INFO: Induction result is UNSAT, proved UNreachability of reachability predicate NQueens-PT-20-ReachabilityCardinality-13
Jun 02, 2018 8:42:34 AM fr.lip6.move.gal.gal2smt.Gal2SMTFrontEnd runKInduction
INFO: Induction result is UNSAT, successfully proved induction at step 0 for NQueens-PT-20-ReachabilityCardinality-13
Jun 02, 2018 8:42:34 AM fr.lip6.move.gal.gal2smt.Gal2SMTFrontEnd runKInduction
INFO: KInduction solution for property NQueens-PT-20-ReachabilityCardinality-13(FALSE) depth K=0 took 366 ms
Jun 02, 2018 8:42:35 AM fr.lip6.move.gal.gal2smt.Gal2SMTFrontEnd runKInduction
INFO: Induction result is UNSAT, proved invariant NQueens-PT-20-ReachabilityCardinality-14
Jun 02, 2018 8:42:35 AM fr.lip6.move.gal.gal2smt.Gal2SMTFrontEnd runKInduction
INFO: Induction result is UNSAT, successfully proved induction at step 0 for NQueens-PT-20-ReachabilityCardinality-14
Jun 02, 2018 8:42:35 AM fr.lip6.move.gal.gal2smt.Gal2SMTFrontEnd runKInduction
INFO: KInduction solution for property NQueens-PT-20-ReachabilityCardinality-14(TRUE) depth K=0 took 563 ms
Jun 02, 2018 8:42:35 AM fr.lip6.move.gal.gal2smt.Gal2SMTFrontEnd runKInduction
INFO: Induction result is UNSAT, proved UNreachability of reachability predicate NQueens-PT-20-ReachabilityCardinality-15
Jun 02, 2018 8:42:35 AM fr.lip6.move.gal.gal2smt.Gal2SMTFrontEnd runKInduction
INFO: Induction result is UNSAT, successfully proved induction at step 0 for NQueens-PT-20-ReachabilityCardinality-15
Jun 02, 2018 8:42:35 AM fr.lip6.move.gal.gal2smt.Gal2SMTFrontEnd runKInduction
INFO: KInduction solution for property NQueens-PT-20-ReachabilityCardinality-15(FALSE) depth K=0 took 237 ms
Jun 02, 2018 8:42:44 AM fr.lip6.move.gal.gal2smt.Gal2SMTFrontEnd runBMC
INFO: Result is SAT, found a counter-example trace to a state that contradicts invariant/never predicate NQueens-PT-20-ReachabilityCardinality-03
Jun 02, 2018 8:42:44 AM fr.lip6.move.gal.gal2smt.Gal2SMTFrontEnd runBMC
INFO: BMC solution for property NQueens-PT-20-ReachabilityCardinality-03(FALSE) depth K=2 took 28110 ms
Jun 02, 2018 8:43:52 AM fr.lip6.move.gal.gal2smt.Gal2SMTFrontEnd runBMC
INFO: Result is SAT, found a trace to state matching reachability predicate NQueens-PT-20-ReachabilityCardinality-04
Jun 02, 2018 8:43:52 AM fr.lip6.move.gal.gal2smt.Gal2SMTFrontEnd runBMC
INFO: BMC solution for property NQueens-PT-20-ReachabilityCardinality-04(TRUE) depth K=2 took 67173 ms
Jun 02, 2018 8:44:17 AM fr.lip6.move.gal.gal2smt.Gal2SMTFrontEnd runBMC
INFO: BMC solution for property NQueens-PT-20-ReachabilityCardinality-05(UNSAT) depth K=2 took 25559 ms
Jun 02, 2018 8:44:45 AM fr.lip6.move.gal.gal2smt.Gal2SMTFrontEnd runKInduction
INFO: Induction result is SAT, non conclusive we might be starting from unreachable statesNQueens-PT-20-ReachabilityCardinality-03
Jun 02, 2018 8:44:45 AM fr.lip6.move.gal.gal2smt.Gal2SMTFrontEnd runKInduction
INFO: KInduction solution for property NQueens-PT-20-ReachabilityCardinality-03(SAT) depth K=1 took 130009 ms
Jun 02, 2018 8:45:09 AM fr.lip6.move.gal.gal2smt.Gal2SMTFrontEnd runBMC
INFO: BMC solution for property NQueens-PT-20-ReachabilityCardinality-06(UNSAT) depth K=2 took 51931 ms
Jun 02, 2018 8:46:07 AM fr.lip6.move.gal.gal2smt.Gal2SMTFrontEnd runKInduction
INFO: Induction result is SAT, non conclusive we might be starting from unreachable statesNQueens-PT-20-ReachabilityCardinality-10
Jun 02, 2018 8:46:07 AM fr.lip6.move.gal.gal2smt.Gal2SMTFrontEnd runKInduction
INFO: KInduction solution for property NQueens-PT-20-ReachabilityCardinality-10(SAT) depth K=1 took 81719 ms
Jun 02, 2018 8:46:11 AM fr.lip6.move.gal.gal2smt.Gal2SMTFrontEnd runBMC
INFO: BMC solution for property NQueens-PT-20-ReachabilityCardinality-07(UNSAT) depth K=2 took 61551 ms
Jun 02, 2018 8:47:31 AM fr.lip6.move.gal.gal2smt.Gal2SMTFrontEnd runBMC
INFO: BMC solution for property NQueens-PT-20-ReachabilityCardinality-08(UNSAT) depth K=2 took 80256 ms
Jun 02, 2018 8:48:08 AM fr.lip6.move.gal.gal2smt.Gal2SMTFrontEnd runBMC
INFO: BMC solution for property NQueens-PT-20-ReachabilityCardinality-09(UNSAT) depth K=2 took 36753 ms
Jun 02, 2018 8:49:48 AM fr.lip6.move.gal.gal2smt.Gal2SMTFrontEnd runBMC
INFO: Result is SAT, found a trace to state matching reachability predicate NQueens-PT-20-ReachabilityCardinality-10
Jun 02, 2018 8:49:48 AM fr.lip6.move.gal.gal2smt.Gal2SMTFrontEnd runBMC
INFO: BMC solution for property NQueens-PT-20-ReachabilityCardinality-10(TRUE) depth K=2 took 99866 ms
Jun 02, 2018 8:52:55 AM fr.lip6.move.gal.gal2smt.Gal2SMTFrontEnd checkProperties
WARNING: Interrupting SMT solver.
Jun 02, 2018 8:52:55 AM fr.lip6.move.gal.gal2smt.bmc.NextBMCSolver checkSat
WARNING: SMT solver unexpectedly returned 'unknown' answer, retrying.
java.lang.RuntimeException: SMT solver raised an error :unknown
at fr.lip6.move.gal.gal2smt.bmc.NextBMCSolver.checkSat(NextBMCSolver.java:318)
at fr.lip6.move.gal.gal2smt.bmc.NextBMCSolver.checkSat(NextBMCSolver.java:305)
at fr.lip6.move.gal.gal2smt.bmc.NextBMCSolver.verifyAssertion(NextBMCSolver.java:452)
at fr.lip6.move.gal.gal2smt.bmc.NextBMCSolver.verify(NextBMCSolver.java:435)
at fr.lip6.move.gal.gal2smt.Gal2SMTFrontEnd.runBMC(Gal2SMTFrontEnd.java:378)
at fr.lip6.move.gal.gal2smt.Gal2SMTFrontEnd.access$0(Gal2SMTFrontEnd.java:350)
at fr.lip6.move.gal.gal2smt.Gal2SMTFrontEnd$1.run(Gal2SMTFrontEnd.java:159)
at java.lang.Thread.run(Thread.java:748)
Jun 02, 2018 8:52:55 AM fr.lip6.move.gal.gal2smt.Gal2SMTFrontEnd runBMC
WARNING: Unexpected error occurred while running SMT. Was verifying NQueens-PT-20-ReachabilityCardinality-11 SMT depth 2
java.lang.RuntimeException: java.lang.RuntimeException: SMT solver raised an error :unknown
at fr.lip6.move.gal.gal2smt.Gal2SMTFrontEnd.runBMC(Gal2SMTFrontEnd.java:404)
at fr.lip6.move.gal.gal2smt.Gal2SMTFrontEnd.access$0(Gal2SMTFrontEnd.java:350)
at fr.lip6.move.gal.gal2smt.Gal2SMTFrontEnd$1.run(Gal2SMTFrontEnd.java:159)
at java.lang.Thread.run(Thread.java:748)
Caused by: java.lang.RuntimeException: SMT solver raised an error :unknown
at fr.lip6.move.gal.gal2smt.bmc.NextBMCSolver.checkSat(NextBMCSolver.java:318)
at fr.lip6.move.gal.gal2smt.bmc.NextBMCSolver.checkSat(NextBMCSolver.java:305)
at fr.lip6.move.gal.gal2smt.bmc.NextBMCSolver.verifyAssertion(NextBMCSolver.java:452)
at fr.lip6.move.gal.gal2smt.bmc.NextBMCSolver.verify(NextBMCSolver.java:435)
at fr.lip6.move.gal.gal2smt.Gal2SMTFrontEnd.runBMC(Gal2SMTFrontEnd.java:378)
... 3 more
Jun 02, 2018 8:52:55 AM fr.lip6.move.gal.gal2smt.Gal2SMTFrontEnd runBMC
INFO: During BMC, SMT solver timed out at depth 2
Jun 02, 2018 8:52:55 AM fr.lip6.move.gal.gal2smt.Gal2SMTFrontEnd runBMC
INFO: BMC solving timed out (3600000 secs) at depth 2
java.lang.RuntimeException: SMT solver raised an exception or timeout :(error "Solver has unexpectedly terminated")
at fr.lip6.move.gal.gal2smt.bmc.NextBMCSolver.checkSat(NextBMCSolver.java:297)
at fr.lip6.move.gal.gal2smt.bmc.KInductionSolver.verify(KInductionSolver.java:573)
at fr.lip6.move.gal.gal2smt.Gal2SMTFrontEnd.runKInduction(Gal2SMTFrontEnd.java:301)
at fr.lip6.move.gal.gal2smt.Gal2SMTFrontEnd.access$1(Gal2SMTFrontEnd.java:274)
at fr.lip6.move.gal.gal2smt.Gal2SMTFrontEnd$2.run(Gal2SMTFrontEnd.java:166)
at java.lang.Thread.run(Thread.java:748)
Jun 02, 2018 8:52:55 AM fr.lip6.move.gal.gal2smt.Gal2SMTFrontEnd runKInduction
WARNING: Unexpected error occurred while running SMT. Was verifying NQueens-PT-20-ReachabilityCardinality-10 K-induction depth 2
Exception in thread "Thread-8" java.lang.RuntimeException: java.lang.RuntimeException: SMT solver raised an exception or timeout :(error "Solver has unexpectedly terminated")
at fr.lip6.move.gal.gal2smt.Gal2SMTFrontEnd.runKInduction(Gal2SMTFrontEnd.java:336)
at fr.lip6.move.gal.gal2smt.Gal2SMTFrontEnd.access$1(Gal2SMTFrontEnd.java:274)
at fr.lip6.move.gal.gal2smt.Gal2SMTFrontEnd$2.run(Gal2SMTFrontEnd.java:166)
at java.lang.Thread.run(Thread.java:748)
Caused by: java.lang.RuntimeException: SMT solver raised an exception or timeout :(error "Solver has unexpectedly terminated")
at fr.lip6.move.gal.gal2smt.bmc.NextBMCSolver.checkSat(NextBMCSolver.java:297)
at fr.lip6.move.gal.gal2smt.bmc.KInductionSolver.verify(KInductionSolver.java:573)
at fr.lip6.move.gal.gal2smt.Gal2SMTFrontEnd.runKInduction(Gal2SMTFrontEnd.java:301)
... 3 more
Jun 02, 2018 8:52:55 AM fr.lip6.move.gal.application.SMTRunner$2 run
INFO: SMT solved all 15 properties. Interrupting other analysis methods.

Sequence of Actions to be Executed by the VM

This is useful if one wants to reexecute the tool in the VM from the submitted image disk.

set -x
# this is for BenchKit: configuration of major elements for the test
export BK_INPUT="NQueens-PT-20"
export BK_EXAMINATION="ReachabilityCardinality"
export BK_TOOL="itstools"
export BK_RESULT_DIR="/tmp/BK_RESULTS/OUTPUTS"
export BK_TIME_CONFINEMENT="3600"
export BK_MEMORY_CONFINEMENT="16384"

# this is specific to your benchmark or test

export BIN_DIR="$HOME/BenchKit/bin"

# remove the execution directoty if it exists (to avoid increse of .vmdk images)
if [ -d execution ] ; then
rm -rf execution
fi

tar xzf /home/mcc/BenchKit/INPUTS/NQueens-PT-20.tgz
mv NQueens-PT-20 execution
cd execution
pwd
ls -lh

# this is for BenchKit: explicit launching of the test
echo "====================================================================="
echo " Generated by BenchKit 2-3637"
echo " Executing tool itstools"
echo " Input is NQueens-PT-20, examination is ReachabilityCardinality"
echo " Time confinement is $BK_TIME_CONFINEMENT seconds"
echo " Memory confinement is 16384 MBytes"
echo " Number of cores is 4"
echo " Run identifier is r284-csrt-152749175000358"
echo "====================================================================="
echo
echo "--------------------"
echo "content from stdout:"
echo
echo "=== Data for post analysis generated by BenchKit (invocation template)"
echo
if [ "ReachabilityCardinality" = "UpperBounds" ] ; then
echo "The expected result is a vector of positive values"
echo NUM_VECTOR
elif [ "ReachabilityCardinality" != "StateSpace" ] ; then
echo "The expected result is a vector of booleans"
echo BOOL_VECTOR
else
echo "no data necessary for post analysis"
fi
echo
if [ -f "ReachabilityCardinality.txt" ] ; then
echo "here is the order used to build the result vector(from text file)"
for x in $(grep Property ReachabilityCardinality.txt | cut -d ' ' -f 2 | sort -u) ; do
echo "FORMULA_NAME $x"
done
elif [ -f "ReachabilityCardinality.xml" ] ; then # for cunf (txt files deleted;-)
echo echo "here is the order used to build the result vector(from xml file)"
for x in $(grep '' ReachabilityCardinality.xml | cut -d '>' -f 2 | cut -d '<' -f 1 | sort -u) ; do
echo "FORMULA_NAME $x"
done
fi
echo
echo "=== Now, execution of the tool begins"
echo
echo -n "BK_START "
date -u +%s%3N
echo
timeout -s 9 $BK_TIME_CONFINEMENT bash -c "/home/mcc/BenchKit/BenchKit_head.sh 2> STDERR ; echo ; echo -n \"BK_STOP \" ; date -u +%s%3N"
if [ $? -eq 137 ] ; then
echo
echo "BK_TIME_CONFINEMENT_REACHED"
fi
echo
echo "--------------------"
echo "content from stderr:"
echo
cat STDERR ;