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 224K
-rw-r--r-- 1 mcc users 3.2K May 30 20:37 CTLCardinality.txt
-rw-r--r-- 1 mcc users 18K May 30 20:37 CTLCardinality.xml
-rw-r--r-- 1 mcc users 2.4K May 29 14:12 CTLFireability.txt
-rw-r--r-- 1 mcc users 16K May 29 14:12 CTLFireability.xml
-rw-r--r-- 1 mcc users 4.0K May 24 11:17 GenericPropertiesDefinition.xml
-rw-r--r-- 1 mcc users 6.3K May 24 11:17 GenericPropertiesVerdict.xml
-rw-r--r-- 1 mcc users 2.5K May 28 09:43 LTLCardinality.txt
-rw-r--r-- 1 mcc users 12K May 28 09:43 LTLCardinality.xml
-rw-r--r-- 1 mcc users 1.9K May 28 07:54 LTLFireability.txt
-rw-r--r-- 1 mcc users 9.8K May 28 07:54 LTLFireability.xml
-rw-r--r-- 1 mcc users 1 May 24 11:17 NewModel
-rw-r--r-- 1 mcc users 3.3K May 28 06:10 ReachabilityCardinality.txt
-rw-r--r-- 1 mcc users 16K May 28 06:10 ReachabilityCardinality.xml
-rw-r--r-- 1 mcc users 110 May 26 06:29 ReachabilityDeadlock.txt
-rw-r--r-- 1 mcc users 348 May 26 06:29 ReachabilityDeadlock.xml
-rw-r--r-- 1 mcc users 2.2K May 27 03:35 ReachabilityFireability.txt
-rw-r--r-- 1 mcc users 9.8K May 27 03:35 ReachabilityFireability.xml
-rw-r--r-- 1 mcc users 1.6K May 28 07:31 UpperBounds.txt
-rw-r--r-- 1 mcc users 3.7K 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 4 May 24 11:17 instance
-rw-r--r-- 1 mcc users 6 May 24 11:17 iscolored
-rw-r--r-- 1 mcc users 68K May 24 11:17 model.pnml
=====================================================================
Generated by BenchKit 2-3637
Executing tool itstools
Input is DiscoveryGPU-PT-09b, examination is ReachabilityFireability
Time confinement is 3600 seconds
Memory confinement is 16384 MBytes
Number of cores is 4
Run identifier is r284-csrt-152749174600072
=====================================================================

--------------------
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 DiscoveryGPU-PT-09b-ReachabilityFireability-00
FORMULA_NAME DiscoveryGPU-PT-09b-ReachabilityFireability-01
FORMULA_NAME DiscoveryGPU-PT-09b-ReachabilityFireability-02
FORMULA_NAME DiscoveryGPU-PT-09b-ReachabilityFireability-03
FORMULA_NAME DiscoveryGPU-PT-09b-ReachabilityFireability-04
FORMULA_NAME DiscoveryGPU-PT-09b-ReachabilityFireability-05
FORMULA_NAME DiscoveryGPU-PT-09b-ReachabilityFireability-06
FORMULA_NAME DiscoveryGPU-PT-09b-ReachabilityFireability-07
FORMULA_NAME DiscoveryGPU-PT-09b-ReachabilityFireability-08
FORMULA_NAME DiscoveryGPU-PT-09b-ReachabilityFireability-09
FORMULA_NAME DiscoveryGPU-PT-09b-ReachabilityFireability-10
FORMULA_NAME DiscoveryGPU-PT-09b-ReachabilityFireability-11
FORMULA_NAME DiscoveryGPU-PT-09b-ReachabilityFireability-12
FORMULA_NAME DiscoveryGPU-PT-09b-ReachabilityFireability-13
FORMULA_NAME DiscoveryGPU-PT-09b-ReachabilityFireability-14
FORMULA_NAME DiscoveryGPU-PT-09b-ReachabilityFireability-15

=== Now, execution of the tool begins

BK_START 1527921264077

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/ReachabilityFireability.pnml.gal, -t, CGAL, -reachable-file, ReachabilityFireability.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/ReachabilityFireability.pnml.gal -t CGAL -reachable-file ReachabilityFireability.prop --nowitness
Loading property file ReachabilityFireability.prop.
Read [reachable] property : DiscoveryGPU-PT-09b-ReachabilityFireability-00 with value :(u13.p124>=1)
Read [reachable] property : DiscoveryGPU-PT-09b-ReachabilityFireability-01 with value :(!(((!((u12.p98>=1)&&(u20.p266>=1)))&&(!((u16.p206>=1)&&(u20.p266>=1))))||(!(((u16.p224>=1)&&(u19.p259>=1))&&(u16.p217>=1)))))
Read [reachable] property : DiscoveryGPU-PT-09b-ReachabilityFireability-02 with value :(u14.p146>=1)
Read [reachable] property : DiscoveryGPU-PT-09b-ReachabilityFireability-03 with value :((u16.p213>=1)&&(u19.p259>=1))
Read [reachable] property : DiscoveryGPU-PT-09b-ReachabilityFireability-04 with value :(u16.p201>=1)
Read [reachable] property : DiscoveryGPU-PT-09b-ReachabilityFireability-05 with value :(((u19.p256>=1)||(u17.p234>=1))&&(u12.p102>=1))
Read [reachable] property : DiscoveryGPU-PT-09b-ReachabilityFireability-06 with value :(u13.p118>=1)
Read [invariant] property : DiscoveryGPU-PT-09b-ReachabilityFireability-07 with value :(!(((u13.p132>=1)&&(u19.p259>=1))&&((!(u15.p173>=1))&&(u17.p237>=1))))
Read [reachable] property : DiscoveryGPU-PT-09b-ReachabilityFireability-08 with value :(((u16.p207>=1)||((((u14.p152>=1)&&(u20.p266>=1))||((u16.p204>=1)&&(u19.p259>=1)))||(u13.p120>=1)))||((u13.p124>=1)||((!(u9.p28>=1))&&((u17.p246>=1)&&(u20.p266>=1)))))
Read [reachable] property : DiscoveryGPU-PT-09b-ReachabilityFireability-09 with value :((u16.p219>=1)&&(u20.p266>=1))
Read [invariant] property : DiscoveryGPU-PT-09b-ReachabilityFireability-10 with value :((!((((u11.p84>=1)&&(u20.p266>=1))&&(u9.p18>=1))&&(((u17.p240>=1)&&(u19.p259>=1))&&(u25.p0>=1))))||((!(((u16.p208>=1)&&(u20.p266>=1))&&(u17.p250>=1)))&&(u17.p225>=1)))
Read [reachable] property : DiscoveryGPU-PT-09b-ReachabilityFireability-11 with value :(((u13.p129>=1)||(u20.p265>=1))||(u14.p167>=1))
Read [invariant] property : DiscoveryGPU-PT-09b-ReachabilityFireability-12 with value :(!((u11.p73>=1)&&(u20.p266>=1)))
Read [invariant] property : DiscoveryGPU-PT-09b-ReachabilityFireability-13 with value :(!(((u11.p84>=1)&&(u20.p266>=1))&&(u11.p72>=1)))
Read [invariant] property : DiscoveryGPU-PT-09b-ReachabilityFireability-14 with value :(!((u11.p84>=1)&&(u20.p266>=1)))
Read [reachable] property : DiscoveryGPU-PT-09b-ReachabilityFireability-15 with value :((u9.p35>=1)&&(u19.p259>=1))
built 28 ordering constraints for composite.
Presburger conditions satisfied. Using coverability to approximate state space in K-Induction.
// Phase 1: matrix 284 rows 268 cols
invariant :p0 + p1 + p2 + p3 + p4 + p5 + p6 + p90 + p91 + p92 + p93 + p94 + p95 + p96 + p97 + p98 + p99 + p100 + p101 + p102 + p103 + p104 + p105 + p106 + p107 + p108 + p109 + p110 + p111 + p112 + p113 + p114 + p115 + p116 = 1
invariant :p0 + p1 + p2 + p198 + p199 + p200 + p201 + p202 + p203 + p204 + p205 + p206 + p207 + p208 + p209 + p210 + p211 + p212 + p213 + p214 + p215 + p216 + p217 + p218 + p219 + p220 + p221 + p222 + p223 + p224 = 1
invariant :p0 + p1 + p2 + p3 + p4 + p5 + p6 + p7 + p63 + p64 + p65 + p66 + p67 + p68 + p69 + p70 + p71 + p72 + p73 + p74 + p75 + p76 + p77 + p78 + p79 + p80 + p81 + p82 + p83 + p84 + p85 + p86 + p87 + p88 + p89 = 1
invariant :p0 + p1 + p2 + p3 + p4 + p144 + p145 + p146 + p147 + p148 + p149 + p150 + p151 + p152 + p153 + p154 + p155 + p156 + p157 + p158 + p159 + p160 + p161 + p162 + p163 + p164 + p165 + p166 + p167 + p168 + p169 + p170 = 1
invariant :p0 + p1 + p2 + p3 + p4 + p5 + p6 + p7 + p8 + p9 + p10 + p11 + p12 + p13 + p14 + p15 + p16 + p17 + p18 + p19 + p20 + p21 + p22 + p23 + p24 + p25 + p26 + p27 + p28 + p29 + p30 + p31 + p32 + p33 + p34 + p35 = 1
invariant :p0 + p1 + p225 + p226 + p227 + p228 + p229 + p230 + p231 + p232 + p233 + p234 + p235 + p236 + p237 + p238 + p239 + p240 + p241 + p242 + p243 + p244 + p245 + p246 + p247 + p248 + p249 + p250 + p251 = 1
invariant :p0 + p252 + p253 + p254 + p255 + p256 + p257 + p258 + p259 + p260 + p261 = 1
invariant :p0 + p252 + p262 + p263 + p264 + p265 + p266 + p267 = 1
invariant :p0 + p1 + p2 + p3 + p4 + p5 + p6 + p7 + p8 + p36 + p37 + p38 + p39 + p40 + p41 + p42 + p43 + p44 + p45 + p46 + p47 + p48 + p49 + p50 + p51 + p52 + p53 + p54 + p55 + p56 + p57 + p58 + p59 + p60 + p61 + p62 = 1
invariant :p0 + p1 + p2 + p3 + p171 + p172 + p173 + p174 + p175 + p176 + p177 + p178 + p179 + p180 + p181 + p182 + p183 + p184 + p185 + p186 + p187 + p188 + p189 + p190 + p191 + p192 + p193 + p194 + p195 + p196 + p197 = 1
invariant :p0 + p1 + p2 + p3 + p4 + p5 + p117 + p118 + p119 + p120 + p121 + p122 + p123 + p124 + p125 + p126 + p127 + p128 + p129 + p130 + p131 + p132 + p133 + p134 + p135 + p136 + p137 + p138 + p139 + p140 + p141 + p142 + p143 = 1
Model ,|S| ,Time ,Mem(kb) ,fin. SDD ,fin. DDD ,peak SDD ,peak DDD ,SDD Hom ,SDD cache peak ,DDD Hom ,DDD cachepeak ,SHom cache
DiscoveryGPU\_PT\_09b\_flat\_flat\_mod,1.45101e+14,1.76033,42812,766,1031,47026,14721,261,89675,149,187730,0
Total reachable state count : 145100651640636

Verifying 16 reachability properties.
Reachability property DiscoveryGPU-PT-09b-ReachabilityFireability-00 is true.
FORMULA DiscoveryGPU-PT-09b-ReachabilityFireability-00 TRUE TECHNIQUES DECISION_DIAGRAMS TOPOLOGICAL COLLATERAL_PROCESSING USE_NUPN

Model ,|S| ,Time ,Mem(kb) ,fin. SDD ,fin. DDD ,peak SDD ,peak DDD ,SDD Hom ,SDD cache peak ,DDD Hom ,DDD cachepeak ,SHom cache
DiscoveryGPU-PT-09b-ReachabilityFireability-00,1.53217e+10,1.76255,42844,63,287,47026,14721,263,89675,151,187730,0
Reachability property DiscoveryGPU-PT-09b-ReachabilityFireability-01 does not hold.
FORMULA DiscoveryGPU-PT-09b-ReachabilityFireability-01 FALSE TECHNIQUES DECISION_DIAGRAMS TOPOLOGICAL COLLATERAL_PROCESSING USE_NUPN
No reachable states exhibit your property : DiscoveryGPU-PT-09b-ReachabilityFireability-01

Model ,|S| ,Time ,Mem(kb) ,fin. SDD ,fin. DDD ,peak SDD ,peak DDD ,SDD Hom ,SDD cache peak ,DDD Hom ,DDD cachepeak ,SHom cache
DiscoveryGPU-PT-09b-ReachabilityFireability-01,0,1.77746,43076,1,0,47026,14721,291,89675,157,187730,1629
Reachability property DiscoveryGPU-PT-09b-ReachabilityFireability-02 is true.
FORMULA DiscoveryGPU-PT-09b-ReachabilityFireability-02 TRUE TECHNIQUES DECISION_DIAGRAMS TOPOLOGICAL COLLATERAL_PROCESSING USE_NUPN

Model ,|S| ,Time ,Mem(kb) ,fin. SDD ,fin. DDD ,peak SDD ,peak DDD ,SDD Hom ,SDD cache peak ,DDD Hom ,DDD cachepeak ,SHom cache
DiscoveryGPU-PT-09b-ReachabilityFireability-02,4.751e+10,1.77781,43164,55,159,47026,14721,293,89675,158,187730,1629
Reachability property DiscoveryGPU-PT-09b-ReachabilityFireability-03 is true.
Presburger conditions satisfied. Using coverability to approximate state space in K-Induction.
// Phase 1: matrix 284 rows 268 cols
FORMULA DiscoveryGPU-PT-09b-ReachabilityFireability-03 TRUE TECHNIQUES DECISION_DIAGRAMS TOPOLOGICAL COLLATERAL_PROCESSING USE_NUPN

Model ,|S| ,Time ,Mem(kb) ,fin. SDD ,fin. DDD ,peak SDD ,peak DDD ,SDD Hom ,SDD cache peak ,DDD Hom ,DDD cachepeak ,SHom cache
DiscoveryGPU-PT-09b-ReachabilityFireability-03,3.73602e+08,1.77814,43164,36,141,47026,14721,297,89675,159,187730,1636
Reachability property DiscoveryGPU-PT-09b-ReachabilityFireability-04 is true.
FORMULA DiscoveryGPU-PT-09b-ReachabilityFireability-04 TRUE TECHNIQUES DECISION_DIAGRAMS TOPOLOGICAL COLLATERAL_PROCESSING USE_NUPN

Model ,|S| ,Time ,Mem(kb) ,fin. SDD ,fin. DDD ,peak SDD ,peak DDD ,SDD Hom ,SDD cache peak ,DDD Hom ,DDD cachepeak ,SHom cache
DiscoveryGPU-PT-09b-ReachabilityFireability-04,4.47541e+11,1.77844,43164,94,276,47026,14721,298,89675,159,187730,1636
Reachability property DiscoveryGPU-PT-09b-ReachabilityFireability-05 is true.
FORMULA DiscoveryGPU-PT-09b-ReachabilityFireability-05 TRUE TECHNIQUES DECISION_DIAGRAMS TOPOLOGICAL COLLATERAL_PROCESSING USE_NUPN

Model ,|S| ,Time ,Mem(kb) ,fin. SDD ,fin. DDD ,peak SDD ,peak DDD ,SDD Hom ,SDD cache peak ,DDD Hom ,DDD cachepeak ,SHom cache
DiscoveryGPU-PT-09b-ReachabilityFireability-05,3.41415e+10,1.78104,43164,35,128,47026,14721,307,89675,162,187730,1951
Reachability property DiscoveryGPU-PT-09b-ReachabilityFireability-06 is true.
FORMULA DiscoveryGPU-PT-09b-ReachabilityFireability-06 TRUE TECHNIQUES DECISION_DIAGRAMS TOPOLOGICAL COLLATERAL_PROCESSING USE_NUPN

Model ,|S| ,Time ,Mem(kb) ,fin. SDD ,fin. DDD ,peak SDD ,peak DDD ,SDD Hom ,SDD cache peak ,DDD Hom ,DDD cachepeak ,SHom cache
DiscoveryGPU-PT-09b-ReachabilityFireability-06,1.53521e+10,1.78128,43164,45,149,47026,14721,309,89675,163,187730,1951
Invariant property DiscoveryGPU-PT-09b-ReachabilityFireability-07 does not hold.
FORMULA DiscoveryGPU-PT-09b-ReachabilityFireability-07 FALSE TECHNIQUES DECISION_DIAGRAMS TOPOLOGICAL COLLATERAL_PROCESSING USE_NUPN

Model ,|S| ,Time ,Mem(kb) ,fin. SDD ,fin. DDD ,peak SDD ,peak DDD ,SDD Hom ,SDD cache peak ,DDD Hom ,DDD cachepeak ,SHom cache
DiscoveryGPU-PT-09b-ReachabilityFireability-07,4.59818e+08,1.78191,43164,36,137,47026,14721,322,89675,165,187730,1969
Reachability property DiscoveryGPU-PT-09b-ReachabilityFireability-08 is true.
FORMULA DiscoveryGPU-PT-09b-ReachabilityFireability-08 TRUE TECHNIQUES DECISION_DIAGRAMS TOPOLOGICAL COLLATERAL_PROCESSING USE_NUPN

Model ,|S| ,Time ,Mem(kb) ,fin. SDD ,fin. DDD ,peak SDD ,peak DDD ,SDD Hom ,SDD cache peak ,DDD Hom ,DDD cachepeak ,SHom cache
DiscoveryGPU-PT-09b-ReachabilityFireability-08,4.41276e+10,1.7827,43164,35,130,47026,14721,350,89675,167,187730,1976
Reachability property DiscoveryGPU-PT-09b-ReachabilityFireability-09 is true.
FORMULA DiscoveryGPU-PT-09b-ReachabilityFireability-09 TRUE TECHNIQUES DECISION_DIAGRAMS TOPOLOGICAL COLLATERAL_PROCESSING USE_NUPN

Model ,|S| ,Time ,Mem(kb) ,fin. SDD ,fin. DDD ,peak SDD ,peak DDD ,SDD Hom ,SDD cache peak ,DDD Hom ,DDD cachepeak ,SHom cache
DiscoveryGPU-PT-09b-ReachabilityFireability-09,6.40567e+10,1.78296,43164,44,129,47026,14721,353,89675,168,187730,1983
Invariant property DiscoveryGPU-PT-09b-ReachabilityFireability-10 is true.
FORMULA DiscoveryGPU-PT-09b-ReachabilityFireability-10 TRUE TECHNIQUES DECISION_DIAGRAMS TOPOLOGICAL COLLATERAL_PROCESSING USE_NUPN

Model ,|S| ,Time ,Mem(kb) ,fin. SDD ,fin. DDD ,peak SDD ,peak DDD ,SDD Hom ,SDD cache peak ,DDD Hom ,DDD cachepeak ,SHom cache
DiscoveryGPU-PT-09b-ReachabilityFireability-10,0,1.78423,43164,1,0,47026,14721,386,89675,172,187730,2149
Reachability property DiscoveryGPU-PT-09b-ReachabilityFireability-11 is true.
FORMULA DiscoveryGPU-PT-09b-ReachabilityFireability-11 TRUE TECHNIQUES DECISION_DIAGRAMS TOPOLOGICAL COLLATERAL_PROCESSING USE_NUPN

Model ,|S| ,Time ,Mem(kb) ,fin. SDD ,fin. DDD ,peak SDD ,peak DDD ,SDD Hom ,SDD cache peak ,DDD Hom ,DDD cachepeak ,SHom cache
DiscoveryGPU-PT-09b-ReachabilityFireability-11,1.53521e+10,1.78459,43164,45,160,47026,14721,392,89675,172,187730,2149
Invariant property DiscoveryGPU-PT-09b-ReachabilityFireability-12 does not hold.
FORMULA DiscoveryGPU-PT-09b-ReachabilityFireability-12 FALSE TECHNIQUES DECISION_DIAGRAMS TOPOLOGICAL COLLATERAL_PROCESSING USE_NUPN

Model ,|S| ,Time ,Mem(kb) ,fin. SDD ,fin. DDD ,peak SDD ,peak DDD ,SDD Hom ,SDD cache peak ,DDD Hom ,DDD cachepeak ,SHom cache
DiscoveryGPU-PT-09b-ReachabilityFireability-12,8.62115e+07,1.78487,43164,33,124,47026,14721,396,89675,172,187730,2149
Invariant property DiscoveryGPU-PT-09b-ReachabilityFireability-13 is true.
FORMULA DiscoveryGPU-PT-09b-ReachabilityFireability-13 TRUE TECHNIQUES DECISION_DIAGRAMS TOPOLOGICAL COLLATERAL_PROCESSING USE_NUPN

Model ,|S| ,Time ,Mem(kb) ,fin. SDD ,fin. DDD ,peak SDD ,peak DDD ,SDD Hom ,SDD cache peak ,DDD Hom ,DDD cachepeak ,SHom cache
DiscoveryGPU-PT-09b-ReachabilityFireability-13,0,1.7858,43164,1,0,47026,14721,403,89675,174,187730,2149
Invariant property DiscoveryGPU-PT-09b-ReachabilityFireability-14 does not hold.
FORMULA DiscoveryGPU-PT-09b-ReachabilityFireability-14 FALSE TECHNIQUES DECISION_DIAGRAMS TOPOLOGICAL COLLATERAL_PROCESSING USE_NUPN

Model ,|S| ,Time ,Mem(kb) ,fin. SDD ,fin. DDD ,peak SDD ,peak DDD ,SDD Hom ,SDD cache peak ,DDD Hom ,DDD cachepeak ,SHom cache
DiscoveryGPU-PT-09b-ReachabilityFireability-14,8.62115e+07,1.78639,43164,33,105,47026,14721,404,89675,174,187730,2149
Reachability property DiscoveryGPU-PT-09b-ReachabilityFireability-15 is true.
FORMULA DiscoveryGPU-PT-09b-ReachabilityFireability-15 TRUE TECHNIQUES DECISION_DIAGRAMS TOPOLOGICAL COLLATERAL_PROCESSING USE_NUPN

Model ,|S| ,Time ,Mem(kb) ,fin. SDD ,fin. DDD ,peak SDD ,peak DDD ,SDD Hom ,SDD cache peak ,DDD Hom ,DDD cachepeak ,SHom cache
DiscoveryGPU-PT-09b-ReachabilityFireability-15,1.24357e+08,1.78665,43164,30,134,47026,14721,407,89675,174,187730,2152
invariant :p0 + p1 + p2 + p3 + p4 + p5 + p6 + p90 + p91 + p92 + p93 + p94 + p95 + p96 + p97 + p98 + p99 + p100 + p101 + p102 + p103 + p104 + p105 + p106 + p107 + p108 + p109 + p110 + p111 + p112 + p113 + p114 + p115 + p116 = 1
invariant :p0 + p1 + p2 + p198 + p199 + p200 + p201 + p202 + p203 + p204 + p205 + p206 + p207 + p208 + p209 + p210 + p211 + p212 + p213 + p214 + p215 + p216 + p217 + p218 + p219 + p220 + p221 + p222 + p223 + p224 = 1
invariant :p0 + p1 + p2 + p3 + p4 + p5 + p6 + p7 + p63 + p64 + p65 + p66 + p67 + p68 + p69 + p70 + p71 + p72 + p73 + p74 + p75 + p76 + p77 + p78 + p79 + p80 + p81 + p82 + p83 + p84 + p85 + p86 + p87 + p88 + p89 = 1
invariant :p0 + p1 + p2 + p3 + p4 + p144 + p145 + p146 + p147 + p148 + p149 + p150 + p151 + p152 + p153 + p154 + p155 + p156 + p157 + p158 + p159 + p160 + p161 + p162 + p163 + p164 + p165 + p166 + p167 + p168 + p169 + p170 = 1
invariant :p0 + p1 + p2 + p3 + p4 + p5 + p6 + p7 + p8 + p9 + p10 + p11 + p12 + p13 + p14 + p15 + p16 + p17 + p18 + p19 + p20 + p21 + p22 + p23 + p24 + p25 + p26 + p27 + p28 + p29 + p30 + p31 + p32 + p33 + p34 + p35 = 1
invariant :p0 + p1 + p225 + p226 + p227 + p228 + p229 + p230 + p231 + p232 + p233 + p234 + p235 + p236 + p237 + p238 + p239 + p240 + p241 + p242 + p243 + p244 + p245 + p246 + p247 + p248 + p249 + p250 + p251 = 1
invariant :p0 + p252 + p253 + p254 + p255 + p256 + p257 + p258 + p259 + p260 + p261 = 1
invariant :p0 + p252 + p262 + p263 + p264 + p265 + p266 + p267 = 1
invariant :p0 + p1 + p2 + p3 + p4 + p5 + p6 + p7 + p8 + p36 + p37 + p38 + p39 + p40 + p41 + p42 + p43 + p44 + p45 + p46 + p47 + p48 + p49 + p50 + p51 + p52 + p53 + p54 + p55 + p56 + p57 + p58 + p59 + p60 + p61 + p62 = 1
invariant :p0 + p1 + p2 + p3 + p171 + p172 + p173 + p174 + p175 + p176 + p177 + p178 + p179 + p180 + p181 + p182 + p183 + p184 + p185 + p186 + p187 + p188 + p189 + p190 + p191 + p192 + p193 + p194 + p195 + p196 + p197 = 1
invariant :p0 + p1 + p2 + p3 + p4 + p5 + p117 + p118 + p119 + p120 + p121 + p122 + p123 + p124 + p125 + p126 + p127 + p128 + p129 + p130 + p131 + p132 + p133 + p134 + p135 + p136 + p137 + p138 + p139 + p140 + p141 + p142 + p143 = 1
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]
WARNING : LTS min runner thread was asked to interrupt. Dying gracefully.

BK_STOP 1527921270240

--------------------
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 ReachabilityFireability -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 ReachabilityFireability -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 6:34:26 AM fr.lip6.move.gal.application.Application start
INFO: Running its-tools with arguments : [-pnfolder, /home/mcc/execution, -examination, ReachabilityFireability, -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 6:34:26 AM fr.lip6.move.gal.application.MccTranslator transformPNML
INFO: Parsing pnml file : /home/mcc/execution/model.pnml
Jun 02, 2018 6:34:26 AM fr.lip6.move.gal.nupn.PTNetReader loadFromXML
INFO: Load time of PNML (sax parser for PT used): 76 ms
Jun 02, 2018 6:34:26 AM fr.lip6.move.gal.pnml.togal.PTGALTransformer handlePage
INFO: Transformed 268 places.
Jun 02, 2018 6:34:26 AM fr.lip6.move.gal.pnml.togal.PTGALTransformer handlePage
INFO: Transformed 284 transitions.
Jun 02, 2018 6:34:26 AM fr.lip6.move.gal.pnml.togal.PnmlToGalTransformer transform
INFO: Found NUPN structural information;
Jun 02, 2018 6:34:26 AM fr.lip6.move.serialization.SerializationUtil systemToFile
INFO: Time to serialize gal into /home/mcc/execution/model.pnml.img.gal : 22 ms
Jun 02, 2018 6:34:26 AM fr.lip6.move.gal.instantiate.GALRewriter flatten
INFO: Flatten gal took : 95 ms
Jun 02, 2018 6:34:26 AM fr.lip6.move.gal.application.MccTranslator applyOrder
INFO: Applying decomposition
Jun 02, 2018 6:34:26 AM fr.lip6.move.gal.instantiate.CompositeBuilder decomposeWithOrder
INFO: Decomposing Gal with order
Jun 02, 2018 6:34:27 AM fr.lip6.move.gal.instantiate.GALRewriter flatten
INFO: Flatten gal took : 64 ms
Jun 02, 2018 6:34:27 AM fr.lip6.move.gal.instantiate.CompositeBuilder rewriteArraysToAllowPartition
INFO: Rewriting arrays to variables to allow decomposition.
Jun 02, 2018 6:34:27 AM fr.lip6.move.gal.instantiate.GALRewriter flatten
INFO: Flatten gal took : 63 ms
Jun 02, 2018 6:34:27 AM fr.lip6.move.gal.instantiate.Instantiator fuseIsomorphicEffects
INFO: Removed a total of 76 redundant transitions.
Jun 02, 2018 6:34:27 AM fr.lip6.move.serialization.SerializationUtil systemToFile
INFO: Time to serialize gal into /home/mcc/execution/ReachabilityFireability.pnml.gal : 10 ms
Jun 02, 2018 6:34:27 AM fr.lip6.move.serialization.SerializationUtil serializePropertiesForITSTools
INFO: Time to serialize properties into /home/mcc/execution/ReachabilityFireability.prop : 0 ms
Jun 02, 2018 6:34:27 AM fr.lip6.move.gal.semantics.DeterministicNextBuilder getDeterministicNext
INFO: Input system was already deterministic with 284 transitions.
Jun 02, 2018 6:34:27 AM fr.lip6.move.gal.semantics.DeterministicNextBuilder getDeterministicNext
INFO: Input system was already deterministic with 284 transitions.
Jun 02, 2018 6:34:28 AM fr.lip6.move.gal.gal2smt.bmc.KInductionSolver computeAndDeclareInvariants
INFO: Computed 11 place invariants in 188 ms
Jun 02, 2018 6:34:28 AM fr.lip6.move.gal.gal2smt.Gal2SMTFrontEnd checkProperties
INFO: Ran tautology test, simplified 0 / 16 in 1705 ms.
Jun 02, 2018 6:34:29 AM fr.lip6.move.gal.gal2smt.Gal2SMTFrontEnd runBMC
INFO: BMC solution for property DiscoveryGPU-PT-09b-ReachabilityFireability-00(UNSAT) depth K=0 took 43 ms
Jun 02, 2018 6:34:29 AM fr.lip6.move.gal.gal2smt.Gal2SMTFrontEnd runBMC
INFO: BMC solution for property DiscoveryGPU-PT-09b-ReachabilityFireability-01(UNSAT) depth K=0 took 49 ms
Jun 02, 2018 6:34:29 AM fr.lip6.move.gal.gal2smt.Gal2SMTFrontEnd runBMC
INFO: BMC solution for property DiscoveryGPU-PT-09b-ReachabilityFireability-02(UNSAT) depth K=0 took 14 ms
Jun 02, 2018 6:34:29 AM fr.lip6.move.gal.semantics.DeterministicNextBuilder getDeterministicNext
INFO: Input system was already deterministic with 284 transitions.
Jun 02, 2018 6:34:29 AM fr.lip6.move.gal.gal2smt.Gal2SMTFrontEnd runBMC
INFO: BMC solution for property DiscoveryGPU-PT-09b-ReachabilityFireability-03(UNSAT) depth K=0 took 37 ms
Jun 02, 2018 6:34:29 AM fr.lip6.move.gal.gal2smt.Gal2SMTFrontEnd runBMC
INFO: BMC solution for property DiscoveryGPU-PT-09b-ReachabilityFireability-04(UNSAT) depth K=0 took 55 ms
Jun 02, 2018 6:34:29 AM fr.lip6.move.gal.gal2smt.Gal2SMTFrontEnd runBMC
INFO: BMC solution for property DiscoveryGPU-PT-09b-ReachabilityFireability-05(UNSAT) depth K=0 took 23 ms
Jun 02, 2018 6:34:29 AM fr.lip6.move.gal.gal2smt.Gal2SMTFrontEnd runBMC
INFO: BMC solution for property DiscoveryGPU-PT-09b-ReachabilityFireability-06(UNSAT) depth K=0 took 49 ms
Jun 02, 2018 6:34:29 AM fr.lip6.move.gal.gal2smt.Gal2SMTFrontEnd runBMC
INFO: BMC solution for property DiscoveryGPU-PT-09b-ReachabilityFireability-07(UNSAT) depth K=0 took 53 ms
Jun 02, 2018 6:34:29 AM fr.lip6.move.gal.gal2smt.Gal2SMTFrontEnd runBMC
INFO: BMC solution for property DiscoveryGPU-PT-09b-ReachabilityFireability-08(UNSAT) depth K=0 took 27 ms
Jun 02, 2018 6:34:29 AM fr.lip6.move.gal.gal2smt.Gal2SMTFrontEnd runBMC
INFO: BMC solution for property DiscoveryGPU-PT-09b-ReachabilityFireability-09(UNSAT) depth K=0 took 6 ms
Jun 02, 2018 6:34:29 AM fr.lip6.move.gal.gal2smt.Gal2SMTFrontEnd runBMC
INFO: BMC solution for property DiscoveryGPU-PT-09b-ReachabilityFireability-10(UNSAT) depth K=0 took 40 ms
Jun 02, 2018 6:34:29 AM fr.lip6.move.gal.gal2smt.Gal2SMTFrontEnd runBMC
INFO: BMC solution for property DiscoveryGPU-PT-09b-ReachabilityFireability-11(UNSAT) depth K=0 took 31 ms
Jun 02, 2018 6:34:29 AM fr.lip6.move.gal.gal2smt.Gal2SMTFrontEnd runBMC
INFO: BMC solution for property DiscoveryGPU-PT-09b-ReachabilityFireability-12(UNSAT) depth K=0 took 2 ms
Jun 02, 2018 6:34:29 AM fr.lip6.move.gal.gal2smt.Gal2SMTFrontEnd runBMC
INFO: BMC solution for property DiscoveryGPU-PT-09b-ReachabilityFireability-13(UNSAT) depth K=0 took 8 ms
Jun 02, 2018 6:34:29 AM fr.lip6.move.gal.gal2smt.Gal2SMTFrontEnd runBMC
INFO: BMC solution for property DiscoveryGPU-PT-09b-ReachabilityFireability-14(UNSAT) depth K=0 took 2 ms
Jun 02, 2018 6:34:29 AM fr.lip6.move.gal.gal2smt.Gal2SMTFrontEnd runBMC
INFO: BMC solution for property DiscoveryGPU-PT-09b-ReachabilityFireability-15(UNSAT) depth K=0 took 2 ms
Jun 02, 2018 6:34:29 AM fr.lip6.move.gal.gal2smt.Gal2SMTFrontEnd runBMC
INFO: BMC solution for property DiscoveryGPU-PT-09b-ReachabilityFireability-00(UNSAT) depth K=1 took 22 ms
Jun 02, 2018 6:34:29 AM fr.lip6.move.gal.gal2smt.Gal2SMTFrontEnd runBMC
INFO: BMC solution for property DiscoveryGPU-PT-09b-ReachabilityFireability-01(UNSAT) depth K=1 took 21 ms
Jun 02, 2018 6:34:29 AM fr.lip6.move.gal.gal2smt.Gal2SMTFrontEnd runBMC
INFO: BMC solution for property DiscoveryGPU-PT-09b-ReachabilityFireability-02(UNSAT) depth K=1 took 6 ms
Jun 02, 2018 6:34:29 AM fr.lip6.move.gal.gal2smt.Gal2SMTFrontEnd runBMC
INFO: BMC solution for property DiscoveryGPU-PT-09b-ReachabilityFireability-03(UNSAT) depth K=1 took 53 ms
Jun 02, 2018 6:34:29 AM fr.lip6.move.gal.gal2smt.Gal2SMTFrontEnd runBMC
INFO: BMC solution for property DiscoveryGPU-PT-09b-ReachabilityFireability-04(UNSAT) depth K=1 took 8 ms
Jun 02, 2018 6:34:29 AM fr.lip6.move.gal.gal2smt.Gal2SMTFrontEnd runBMC
INFO: BMC solution for property DiscoveryGPU-PT-09b-ReachabilityFireability-05(UNSAT) depth K=1 took 29 ms
Jun 02, 2018 6:34:29 AM fr.lip6.move.gal.gal2smt.Gal2SMTFrontEnd runBMC
INFO: BMC solution for property DiscoveryGPU-PT-09b-ReachabilityFireability-06(UNSAT) depth K=1 took 29 ms
Jun 02, 2018 6:34:29 AM fr.lip6.move.gal.gal2smt.Gal2SMTFrontEnd runBMC
INFO: BMC solution for property DiscoveryGPU-PT-09b-ReachabilityFireability-07(UNSAT) depth K=1 took 41 ms
Jun 02, 2018 6:34:29 AM fr.lip6.move.gal.gal2smt.Gal2SMTFrontEnd runBMC
INFO: BMC solution for property DiscoveryGPU-PT-09b-ReachabilityFireability-08(UNSAT) depth K=1 took 20 ms
Jun 02, 2018 6:34:29 AM fr.lip6.move.gal.gal2smt.Gal2SMTFrontEnd runBMC
INFO: BMC solution for property DiscoveryGPU-PT-09b-ReachabilityFireability-09(UNSAT) depth K=1 took 10 ms
Jun 02, 2018 6:34:29 AM fr.lip6.move.gal.gal2smt.Gal2SMTFrontEnd checkProperties
WARNING: Interrupting SMT solver.
Jun 02, 2018 6:34:29 AM fr.lip6.move.gal.gal2smt.Gal2SMTFrontEnd runBMC
INFO: BMC solution for property DiscoveryGPU-PT-09b-ReachabilityFireability-10(UNSAT) depth K=1 took 17 ms
Jun 02, 2018 6:34:29 AM fr.lip6.move.gal.gal2smt.bmc.NextBMCSolver checkSat
WARNING: SMT solver unexpectedly returned 'unknown' answer, retrying.
Skipping mayMatrices nes/nds SMT solver raised an error :unknown
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.KInductionSolver.init(KInductionSolver.java:116)
at fr.lip6.move.gal.gal2smt.bmc.NecessaryEnablingsolver.init(NecessaryEnablingsolver.java:71)
at fr.lip6.move.gal.gal2pins.Gal2PinsTransformerNext.printLabels(Gal2PinsTransformerNext.java:471)
at fr.lip6.move.gal.gal2pins.Gal2PinsTransformerNext.printDependencyMatrix(Gal2PinsTransformerNext.java:209)
at fr.lip6.move.gal.gal2pins.Gal2PinsTransformerNext.buildBodyFile(Gal2PinsTransformerNext.java:85)
at fr.lip6.move.gal.gal2pins.Gal2PinsTransformerNext.transform(Gal2PinsTransformerNext.java:830)
at fr.lip6.move.gal.application.LTSminRunner$1.run(LTSminRunner.java:71)
at java.lang.Thread.run(Thread.java:748)
java.lang.RuntimeException: Assertion failed : SMT solver produced unexpected response (error "Failed to assert expression: java.io.IOException: Broken pipe (or (or (or (>= (select (select s 1) 129) 1) (>= (select (select s 1) 265) 1)) (>= (select (select s 1) 167) 1)) (or (or (>= (select (select s 1) 129) 1) (>= (select (select s 1) 265) 1)) (>= (select (select s 1) 167) 1)))")
at fr.lip6.move.gal.gal2smt.bmc.NextBMCSolver.verifyAssertion(NextBMCSolver.java:450)
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 6:34:29 AM fr.lip6.move.gal.gal2smt.Gal2SMTFrontEnd runBMC
WARNING: Unexpected error occurred while running SMT. Was verifying DiscoveryGPU-PT-09b-ReachabilityFireability-11 SMT depth 1
java.lang.RuntimeException: java.lang.RuntimeException: Assertion failed : SMT solver produced unexpected response (error "Failed to assert expression: java.io.IOException: Broken pipe (or (or (or (>= (select (select s 1) 129) 1) (>= (select (select s 1) 265) 1)) (>= (select (select s 1) 167) 1)) (or (or (>= (select (select s 1) 129) 1) (>= (select (select s 1) 265) 1)) (>= (select (select s 1) 167) 1)))")
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: Assertion failed : SMT solver produced unexpected response (error "Failed to assert expression: java.io.IOException: Broken pipe (or (or (or (>= (select (select s 1) 129) 1) (>= (select (select s 1) 265) 1)) (>= (select (select s 1) 167) 1)) (or (or (>= (select (select s 1) 129) 1) (>= (select (select s 1) 265) 1)) (>= (select (select s 1) 167) 1)))")
at fr.lip6.move.gal.gal2smt.bmc.NextBMCSolver.verifyAssertion(NextBMCSolver.java:450)
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 6:34:29 AM fr.lip6.move.gal.gal2smt.Gal2SMTFrontEnd runBMC
INFO: During BMC, SMT solver timed out at depth 1
Jun 02, 2018 6:34:29 AM fr.lip6.move.gal.gal2smt.Gal2SMTFrontEnd runBMC
INFO: BMC solving timed out (3600000 secs) at depth 1
Jun 02, 2018 6:34:29 AM fr.lip6.move.gal.gal2smt.bmc.KInductionSolver computeAndDeclareInvariants
INFO: Computed 11 place invariants in 134 ms
Jun 02, 2018 6:34:29 AM fr.lip6.move.gal.gal2pins.Gal2PinsTransformerNext transform
INFO: Built C files in 2262ms conformant to PINS in folder :/home/mcc/execution
Exception in thread "Thread-8" java.lang.RuntimeException: SMT solver raised an error :(error "Error writing to Z3 solver: java.io.IOException: Stream closed")
at fr.lip6.move.gal.gal2smt.bmc.KInductionSolver.computeAndDeclareInvariants(KInductionSolver.java:293)
at fr.lip6.move.gal.gal2smt.bmc.KInductionSolver.init(KInductionSolver.java:71)
at fr.lip6.move.gal.gal2smt.smt.ISMTSolver.init(ISMTSolver.java:17)
at fr.lip6.move.gal.gal2smt.Gal2SMTFrontEnd.runKInduction(Gal2SMTFrontEnd.java:278)
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 6:34:29 AM fr.lip6.move.gal.application.SMTRunner$2 run
INFO: SMT solved 0/ 16 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="DiscoveryGPU-PT-09b"
export BK_EXAMINATION="ReachabilityFireability"
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/DiscoveryGPU-PT-09b.tgz
mv DiscoveryGPU-PT-09b 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 DiscoveryGPU-PT-09b, examination is ReachabilityFireability"
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-152749174600072"
echo "====================================================================="
echo
echo "--------------------"
echo "content from stdout:"
echo
echo "=== Data for post analysis generated by BenchKit (invocation template)"
echo
if [ "ReachabilityFireability" = "UpperBounds" ] ; then
echo "The expected result is a vector of positive values"
echo NUM_VECTOR
elif [ "ReachabilityFireability" != "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 "ReachabilityFireability.txt" ] ; then
echo "here is the order used to build the result vector(from text file)"
for x in $(grep Property ReachabilityFireability.txt | cut -d ' ' -f 2 | sort -u) ; do
echo "FORMULA_NAME $x"
done
elif [ -f "ReachabilityFireability.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 '' ReachabilityFireability.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 ;