/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-RepeatedSemanticLbeWithDisjunctivePredicates.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread-wmm/safe019_tso.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-d5b4239aa45c8d22a30959944f2ef622f7386a6d-d5b4239 [2021-03-26 10:36:19,041 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-03-26 10:36:19,044 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-03-26 10:36:19,092 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-03-26 10:36:19,093 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-03-26 10:36:19,095 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-03-26 10:36:19,098 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-03-26 10:36:19,104 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-03-26 10:36:19,106 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-03-26 10:36:19,110 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-03-26 10:36:19,111 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-03-26 10:36:19,112 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-03-26 10:36:19,113 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-03-26 10:36:19,114 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-03-26 10:36:19,116 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-03-26 10:36:19,117 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-03-26 10:36:19,119 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-03-26 10:36:19,120 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-03-26 10:36:19,123 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-03-26 10:36:19,130 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-03-26 10:36:19,132 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-03-26 10:36:19,133 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-03-26 10:36:19,134 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-03-26 10:36:19,136 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-03-26 10:36:19,142 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-03-26 10:36:19,151 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-03-26 10:36:19,152 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-03-26 10:36:19,152 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-03-26 10:36:19,156 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-RepeatedSemanticLbeWithDisjunctivePredicates.epf [2021-03-26 10:36:19,191 INFO L113 SettingsManager]: Loading preferences was successful [2021-03-26 10:36:19,191 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-03-26 10:36:19,194 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-03-26 10:36:19,195 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-03-26 10:36:19,195 INFO L138 SettingsManager]: * Use SBE=true [2021-03-26 10:36:19,195 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-03-26 10:36:19,195 INFO L138 SettingsManager]: * sizeof long=4 [2021-03-26 10:36:19,195 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-03-26 10:36:19,195 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-03-26 10:36:19,196 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-03-26 10:36:19,197 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-03-26 10:36:19,197 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-03-26 10:36:19,197 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-03-26 10:36:19,197 INFO L138 SettingsManager]: * sizeof long double=12 [2021-03-26 10:36:19,197 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-03-26 10:36:19,197 INFO L138 SettingsManager]: * Use constant arrays=true [2021-03-26 10:36:19,198 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-03-26 10:36:19,198 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-03-26 10:36:19,198 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-03-26 10:36:19,198 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-03-26 10:36:19,198 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-03-26 10:36:19,199 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-03-26 10:36:19,199 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-03-26 10:36:19,199 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-03-26 10:36:19,199 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-03-26 10:36:19,199 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-03-26 10:36:19,200 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-03-26 10:36:19,200 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=SEMANTIC_BASED_MOVER_CHECK_WITH_PREDICATES_DISJUNCTIVE [2021-03-26 10:36:19,200 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-03-26 10:36:19,200 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-03-26 10:36:19,200 INFO L138 SettingsManager]: * Apply repeated Lipton Reduction=true WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-03-26 10:36:19,518 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-03-26 10:36:19,544 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-03-26 10:36:19,546 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-03-26 10:36:19,547 INFO L271 PluginConnector]: Initializing CDTParser... [2021-03-26 10:36:19,548 INFO L275 PluginConnector]: CDTParser initialized [2021-03-26 10:36:19,548 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe019_tso.oepc.i [2021-03-26 10:36:19,670 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c35a437c7/86ee96a1f33246d1aff1ebeb28ed3ec7/FLAGa4392b0ba [2021-03-26 10:36:20,167 INFO L306 CDTParser]: Found 1 translation units. [2021-03-26 10:36:20,167 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe019_tso.oepc.i [2021-03-26 10:36:20,183 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c35a437c7/86ee96a1f33246d1aff1ebeb28ed3ec7/FLAGa4392b0ba [2021-03-26 10:36:20,513 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c35a437c7/86ee96a1f33246d1aff1ebeb28ed3ec7 [2021-03-26 10:36:20,514 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-03-26 10:36:20,516 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-03-26 10:36:20,517 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-03-26 10:36:20,517 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-03-26 10:36:20,520 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-03-26 10:36:20,521 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.03 10:36:20" (1/1) ... [2021-03-26 10:36:20,522 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@298f587b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 10:36:20, skipping insertion in model container [2021-03-26 10:36:20,522 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.03 10:36:20" (1/1) ... [2021-03-26 10:36:20,531 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-03-26 10:36:20,582 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-03-26 10:36:20,713 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe019_tso.oepc.i[950,963] [2021-03-26 10:36:20,815 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-03-26 10:36:20,822 INFO L203 MainTranslator]: Completed pre-run [2021-03-26 10:36:20,831 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe019_tso.oepc.i[950,963] [2021-03-26 10:36:20,855 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-03-26 10:36:20,916 INFO L208 MainTranslator]: Completed translation [2021-03-26 10:36:20,917 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 10:36:20 WrapperNode [2021-03-26 10:36:20,917 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-03-26 10:36:20,918 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-03-26 10:36:20,918 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-03-26 10:36:20,918 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-03-26 10:36:20,924 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 10:36:20" (1/1) ... [2021-03-26 10:36:20,935 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 10:36:20" (1/1) ... [2021-03-26 10:36:20,951 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-03-26 10:36:20,951 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-03-26 10:36:20,952 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-03-26 10:36:20,952 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-03-26 10:36:20,958 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 10:36:20" (1/1) ... [2021-03-26 10:36:20,958 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 10:36:20" (1/1) ... [2021-03-26 10:36:20,961 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 10:36:20" (1/1) ... [2021-03-26 10:36:20,961 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 10:36:20" (1/1) ... [2021-03-26 10:36:20,966 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 10:36:20" (1/1) ... [2021-03-26 10:36:20,967 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 10:36:20" (1/1) ... [2021-03-26 10:36:20,969 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 10:36:20" (1/1) ... [2021-03-26 10:36:20,971 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-03-26 10:36:20,972 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-03-26 10:36:20,972 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-03-26 10:36:20,972 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-03-26 10:36:20,972 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 10:36:20" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-03-26 10:36:21,025 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-03-26 10:36:21,025 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-03-26 10:36:21,026 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-03-26 10:36:21,026 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-03-26 10:36:21,027 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2021-03-26 10:36:21,027 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2021-03-26 10:36:21,027 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2021-03-26 10:36:21,027 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2021-03-26 10:36:21,028 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2021-03-26 10:36:21,028 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2021-03-26 10:36:21,028 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2021-03-26 10:36:21,028 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2021-03-26 10:36:21,028 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-03-26 10:36:21,028 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-03-26 10:36:21,028 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-03-26 10:36:21,028 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-03-26 10:36:21,030 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-03-26 10:36:21,424 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-03-26 10:36:21,425 INFO L299 CfgBuilder]: Removed 8 assume(true) statements. [2021-03-26 10:36:21,427 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.03 10:36:21 BoogieIcfgContainer [2021-03-26 10:36:21,427 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-03-26 10:36:21,428 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-03-26 10:36:21,428 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-03-26 10:36:21,431 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-03-26 10:36:21,431 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.03 10:36:20" (1/3) ... [2021-03-26 10:36:21,432 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@444bbe4f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.03 10:36:21, skipping insertion in model container [2021-03-26 10:36:21,432 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 10:36:20" (2/3) ... [2021-03-26 10:36:21,432 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@444bbe4f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.03 10:36:21, skipping insertion in model container [2021-03-26 10:36:21,432 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.03 10:36:21" (3/3) ... [2021-03-26 10:36:21,434 INFO L111 eAbstractionObserver]: Analyzing ICFG safe019_tso.oepc.i [2021-03-26 10:36:21,439 INFO L149 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-03-26 10:36:21,443 INFO L161 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-03-26 10:36:21,443 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-03-26 10:36:21,484 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:36:21,485 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:36:21,485 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:36:21,485 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:36:21,485 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:36:21,485 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:36:21,485 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:36:21,485 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:36:21,486 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:36:21,486 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:36:21,486 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:36:21,486 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:36:21,487 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:36:21,487 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:36:21,487 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:36:21,487 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:36:21,487 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:36:21,487 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:36:21,487 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:36:21,487 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:36:21,491 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:36:21,491 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:36:21,492 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:36:21,492 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:36:21,493 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:36:21,493 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:36:21,494 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:36:21,494 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:36:21,494 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:36:21,494 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:36:21,494 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:36:21,495 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:36:21,495 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:36:21,495 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:36:21,496 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:36:21,496 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:36:21,496 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:36:21,496 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:36:21,496 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:36:21,497 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:36:21,497 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:36:21,497 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:36:21,497 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:36:21,497 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:36:21,497 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:36:21,497 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:36:21,498 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:36:21,498 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:36:21,499 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:36:21,500 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:36:21,500 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:36:21,500 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:36:21,504 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:36:21,504 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:36:21,504 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:36:21,505 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:36:21,507 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:36:21,508 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:36:21,508 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:36:21,508 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:36:21,510 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:36:21,511 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:36:21,511 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:36:21,511 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:36:21,515 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-03-26 10:36:21,530 INFO L253 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2021-03-26 10:36:21,558 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-03-26 10:36:21,558 INFO L377 AbstractCegarLoop]: Hoare is false [2021-03-26 10:36:21,558 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-03-26 10:36:21,558 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-03-26 10:36:21,558 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-03-26 10:36:21,559 INFO L381 AbstractCegarLoop]: Difference is false [2021-03-26 10:36:21,559 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-03-26 10:36:21,559 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-03-26 10:36:21,573 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 97 places, 86 transitions, 192 flow [2021-03-26 10:36:21,641 INFO L129 PetriNetUnfolder]: 2/82 cut-off events. [2021-03-26 10:36:21,641 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 10:36:21,646 INFO L84 FinitePrefix]: Finished finitePrefix Result has 95 conditions, 82 events. 2/82 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 62 event pairs, 0 based on Foata normal form. 0/79 useless extension candidates. Maximal degree in co-relation 68. Up to 2 conditions per place. [2021-03-26 10:36:21,647 INFO L82 GeneralOperation]: Start removeDead. Operand has 97 places, 86 transitions, 192 flow [2021-03-26 10:36:21,658 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 80 places, 68 transitions, 148 flow [2021-03-26 10:36:21,660 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 10:36:21,676 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 80 places, 68 transitions, 148 flow [2021-03-26 10:36:21,679 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 80 places, 68 transitions, 148 flow [2021-03-26 10:36:21,682 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 80 places, 68 transitions, 148 flow [2021-03-26 10:36:21,709 INFO L129 PetriNetUnfolder]: 1/68 cut-off events. [2021-03-26 10:36:21,709 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 10:36:21,710 INFO L84 FinitePrefix]: Finished finitePrefix Result has 81 conditions, 68 events. 1/68 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 49 event pairs, 0 based on Foata normal form. 0/67 useless extension candidates. Maximal degree in co-relation 54. Up to 2 conditions per place. [2021-03-26 10:36:21,713 INFO L142 LiptonReduction]: Number of co-enabled transitions 1250 [2021-03-26 10:36:23,511 INFO L154 LiptonReduction]: Checked pairs total: 1269 [2021-03-26 10:36:23,512 INFO L156 LiptonReduction]: Total number of compositions: 43 [2021-03-26 10:36:23,514 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 1855 [2021-03-26 10:36:23,524 INFO L129 PetriNetUnfolder]: 0/24 cut-off events. [2021-03-26 10:36:23,524 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 10:36:23,524 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 10:36:23,525 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 10:36:23,525 INFO L428 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-26 10:36:23,529 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 10:36:23,529 INFO L82 PathProgramCache]: Analyzing trace with hash 2002329809, now seen corresponding path program 1 times [2021-03-26 10:36:23,537 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 10:36:23,537 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [151736148] [2021-03-26 10:36:23,537 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 10:36:23,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 10:36:23,813 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:36:23,815 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 10:36:23,816 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:36:23,816 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 10:36:23,829 INFO L142 QuantifierPusher]: treesize reduction 3, result has 85.0 percent of original size [2021-03-26 10:36:23,830 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-26 10:36:23,847 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 10:36:23,847 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [151736148] [2021-03-26 10:36:23,848 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 10:36:23,848 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-26 10:36:23,848 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [866580338] [2021-03-26 10:36:23,857 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-03-26 10:36:23,857 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 10:36:23,868 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-03-26 10:36:23,869 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-03-26 10:36:23,872 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 104 out of 129 [2021-03-26 10:36:23,877 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 38 places, 25 transitions, 62 flow. Second operand has 4 states, 4 states have (on average 105.0) internal successors, (420), 4 states have internal predecessors, (420), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:36:23,877 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 10:36:23,878 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 104 of 129 [2021-03-26 10:36:23,879 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 10:36:23,938 INFO L129 PetriNetUnfolder]: 36/115 cut-off events. [2021-03-26 10:36:23,939 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 10:36:23,940 INFO L84 FinitePrefix]: Finished finitePrefix Result has 205 conditions, 115 events. 36/115 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 460 event pairs, 24 based on Foata normal form. 5/109 useless extension candidates. Maximal degree in co-relation 188. Up to 59 conditions per place. [2021-03-26 10:36:23,942 INFO L132 encePairwiseOnDemand]: 123/129 looper letters, 9 selfloop transitions, 5 changer transitions 0/30 dead transitions. [2021-03-26 10:36:23,942 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 41 places, 30 transitions, 100 flow [2021-03-26 10:36:23,943 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-03-26 10:36:23,945 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-03-26 10:36:23,955 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 432 transitions. [2021-03-26 10:36:23,959 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8372093023255814 [2021-03-26 10:36:23,960 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 432 transitions. [2021-03-26 10:36:23,960 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 432 transitions. [2021-03-26 10:36:23,963 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 10:36:23,966 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 432 transitions. [2021-03-26 10:36:23,970 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 108.0) internal successors, (432), 4 states have internal predecessors, (432), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:36:23,985 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 129.0) internal successors, (645), 5 states have internal predecessors, (645), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:36:23,986 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 129.0) internal successors, (645), 5 states have internal predecessors, (645), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:36:23,988 INFO L185 Difference]: Start difference. First operand has 38 places, 25 transitions, 62 flow. Second operand 4 states and 432 transitions. [2021-03-26 10:36:23,988 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 41 places, 30 transitions, 100 flow [2021-03-26 10:36:23,991 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 37 places, 30 transitions, 96 flow, removed 0 selfloop flow, removed 4 redundant places. [2021-03-26 10:36:23,992 INFO L241 Difference]: Finished difference. Result has 40 places, 28 transitions, 94 flow [2021-03-26 10:36:23,994 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=129, PETRI_DIFFERENCE_MINUEND_FLOW=58, PETRI_DIFFERENCE_MINUEND_PLACES=34, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=25, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=20, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=94, PETRI_PLACES=40, PETRI_TRANSITIONS=28} [2021-03-26 10:36:23,994 INFO L343 CegarLoopForPetriNet]: 38 programPoint places, 2 predicate places. [2021-03-26 10:36:23,995 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 10:36:23,995 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 40 places, 28 transitions, 94 flow [2021-03-26 10:36:23,995 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 40 places, 28 transitions, 94 flow [2021-03-26 10:36:23,996 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 40 places, 28 transitions, 94 flow [2021-03-26 10:36:24,011 INFO L129 PetriNetUnfolder]: 19/82 cut-off events. [2021-03-26 10:36:24,011 INFO L130 PetriNetUnfolder]: For 20/22 co-relation queries the response was YES. [2021-03-26 10:36:24,012 INFO L84 FinitePrefix]: Finished finitePrefix Result has 167 conditions, 82 events. 19/82 cut-off events. For 20/22 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 319 event pairs, 10 based on Foata normal form. 0/75 useless extension candidates. Maximal degree in co-relation 153. Up to 34 conditions per place. [2021-03-26 10:36:24,013 INFO L142 LiptonReduction]: Number of co-enabled transitions 226 [2021-03-26 10:36:24,520 INFO L154 LiptonReduction]: Checked pairs total: 278 [2021-03-26 10:36:24,520 INFO L156 LiptonReduction]: Total number of compositions: 4 [2021-03-26 10:36:24,521 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 526 [2021-03-26 10:36:24,522 INFO L480 AbstractCegarLoop]: Abstraction has has 36 places, 24 transitions, 86 flow [2021-03-26 10:36:24,522 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 105.0) internal successors, (420), 4 states have internal predecessors, (420), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:36:24,522 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 10:36:24,523 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 10:36:24,523 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-03-26 10:36:24,523 INFO L428 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-26 10:36:24,523 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 10:36:24,524 INFO L82 PathProgramCache]: Analyzing trace with hash 233500185, now seen corresponding path program 1 times [2021-03-26 10:36:24,524 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 10:36:24,524 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [478564102] [2021-03-26 10:36:24,524 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 10:36:24,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 10:36:24,589 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:36:24,589 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 10:36:24,590 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:36:24,590 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 10:36:24,594 INFO L142 QuantifierPusher]: treesize reduction 3, result has 85.0 percent of original size [2021-03-26 10:36:24,595 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-26 10:36:24,604 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 10:36:24,604 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [478564102] [2021-03-26 10:36:24,605 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 10:36:24,605 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-26 10:36:24,605 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [760470825] [2021-03-26 10:36:24,606 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-03-26 10:36:24,606 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 10:36:24,606 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-03-26 10:36:24,607 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-03-26 10:36:24,608 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 105 out of 133 [2021-03-26 10:36:24,608 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 36 places, 24 transitions, 86 flow. Second operand has 4 states, 4 states have (on average 106.25) internal successors, (425), 4 states have internal predecessors, (425), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:36:24,608 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 10:36:24,608 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 105 of 133 [2021-03-26 10:36:24,609 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 10:36:24,654 INFO L129 PetriNetUnfolder]: 28/99 cut-off events. [2021-03-26 10:36:24,655 INFO L130 PetriNetUnfolder]: For 61/101 co-relation queries the response was YES. [2021-03-26 10:36:24,657 INFO L84 FinitePrefix]: Finished finitePrefix Result has 265 conditions, 99 events. 28/99 cut-off events. For 61/101 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 392 event pairs, 7 based on Foata normal form. 4/96 useless extension candidates. Maximal degree in co-relation 251. Up to 46 conditions per place. [2021-03-26 10:36:24,658 INFO L132 encePairwiseOnDemand]: 125/133 looper letters, 7 selfloop transitions, 9 changer transitions 0/29 dead transitions. [2021-03-26 10:36:24,658 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 39 places, 29 transitions, 142 flow [2021-03-26 10:36:24,659 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-03-26 10:36:24,659 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-03-26 10:36:24,660 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 435 transitions. [2021-03-26 10:36:24,660 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8176691729323309 [2021-03-26 10:36:24,660 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 435 transitions. [2021-03-26 10:36:24,660 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 435 transitions. [2021-03-26 10:36:24,661 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 10:36:24,661 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 435 transitions. [2021-03-26 10:36:24,662 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 108.75) internal successors, (435), 4 states have internal predecessors, (435), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:36:24,664 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 133.0) internal successors, (665), 5 states have internal predecessors, (665), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:36:24,664 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 133.0) internal successors, (665), 5 states have internal predecessors, (665), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:36:24,664 INFO L185 Difference]: Start difference. First operand has 36 places, 24 transitions, 86 flow. Second operand 4 states and 435 transitions. [2021-03-26 10:36:24,664 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 39 places, 29 transitions, 142 flow [2021-03-26 10:36:24,666 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 38 places, 29 transitions, 138 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-03-26 10:36:24,667 INFO L241 Difference]: Finished difference. Result has 40 places, 26 transitions, 127 flow [2021-03-26 10:36:24,667 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=133, PETRI_DIFFERENCE_MINUEND_FLOW=84, PETRI_DIFFERENCE_MINUEND_PLACES=35, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=24, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=15, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=127, PETRI_PLACES=40, PETRI_TRANSITIONS=26} [2021-03-26 10:36:24,668 INFO L343 CegarLoopForPetriNet]: 38 programPoint places, 2 predicate places. [2021-03-26 10:36:24,668 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 10:36:24,668 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 40 places, 26 transitions, 127 flow [2021-03-26 10:36:24,669 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 40 places, 26 transitions, 127 flow [2021-03-26 10:36:24,669 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 40 places, 26 transitions, 127 flow [2021-03-26 10:36:24,685 INFO L129 PetriNetUnfolder]: 21/81 cut-off events. [2021-03-26 10:36:24,685 INFO L130 PetriNetUnfolder]: For 79/87 co-relation queries the response was YES. [2021-03-26 10:36:24,685 INFO L84 FinitePrefix]: Finished finitePrefix Result has 232 conditions, 81 events. 21/81 cut-off events. For 79/87 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 308 event pairs, 12 based on Foata normal form. 0/76 useless extension candidates. Maximal degree in co-relation 216. Up to 35 conditions per place. [2021-03-26 10:36:24,687 INFO L142 LiptonReduction]: Number of co-enabled transitions 216 [2021-03-26 10:36:24,873 WARN L205 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 76 [2021-03-26 10:36:25,117 WARN L205 SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 76 [2021-03-26 10:36:25,192 INFO L154 LiptonReduction]: Checked pairs total: 234 [2021-03-26 10:36:25,192 INFO L156 LiptonReduction]: Total number of compositions: 1 [2021-03-26 10:36:25,192 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 524 [2021-03-26 10:36:25,194 INFO L480 AbstractCegarLoop]: Abstraction has has 39 places, 25 transitions, 123 flow [2021-03-26 10:36:25,195 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 106.25) internal successors, (425), 4 states have internal predecessors, (425), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:36:25,195 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 10:36:25,197 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 10:36:25,198 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-03-26 10:36:25,198 INFO L428 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-26 10:36:25,199 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 10:36:25,205 INFO L82 PathProgramCache]: Analyzing trace with hash -466507060, now seen corresponding path program 1 times [2021-03-26 10:36:25,206 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 10:36:25,206 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [604282167] [2021-03-26 10:36:25,206 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 10:36:25,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 10:36:25,297 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:36:25,298 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 10:36:25,299 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:36:25,300 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 10:36:25,304 INFO L142 QuantifierPusher]: treesize reduction 3, result has 85.0 percent of original size [2021-03-26 10:36:25,305 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-26 10:36:25,315 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 10:36:25,320 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [604282167] [2021-03-26 10:36:25,320 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 10:36:25,320 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-26 10:36:25,320 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1588705826] [2021-03-26 10:36:25,321 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-03-26 10:36:25,321 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 10:36:25,322 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-03-26 10:36:25,322 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-03-26 10:36:25,324 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 101 out of 134 [2021-03-26 10:36:25,325 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 39 places, 25 transitions, 123 flow. Second operand has 4 states, 4 states have (on average 102.25) internal successors, (409), 4 states have internal predecessors, (409), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:36:25,325 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 10:36:25,325 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 101 of 134 [2021-03-26 10:36:25,325 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 10:36:25,400 INFO L129 PetriNetUnfolder]: 107/248 cut-off events. [2021-03-26 10:36:25,400 INFO L130 PetriNetUnfolder]: For 403/618 co-relation queries the response was YES. [2021-03-26 10:36:25,401 INFO L84 FinitePrefix]: Finished finitePrefix Result has 820 conditions, 248 events. 107/248 cut-off events. For 403/618 co-relation queries the response was YES. Maximal size of possible extension queue 34. Compared 1186 event pairs, 14 based on Foata normal form. 10/248 useless extension candidates. Maximal degree in co-relation 804. Up to 88 conditions per place. [2021-03-26 10:36:25,403 INFO L132 encePairwiseOnDemand]: 126/134 looper letters, 14 selfloop transitions, 23 changer transitions 0/49 dead transitions. [2021-03-26 10:36:25,403 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 43 places, 49 transitions, 354 flow [2021-03-26 10:36:25,404 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-26 10:36:25,404 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-03-26 10:36:25,406 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 532 transitions. [2021-03-26 10:36:25,406 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7940298507462686 [2021-03-26 10:36:25,406 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 532 transitions. [2021-03-26 10:36:25,406 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 532 transitions. [2021-03-26 10:36:25,407 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 10:36:25,407 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 532 transitions. [2021-03-26 10:36:25,408 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 106.4) internal successors, (532), 5 states have internal predecessors, (532), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:36:25,410 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 134.0) internal successors, (804), 6 states have internal predecessors, (804), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:36:25,410 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 134.0) internal successors, (804), 6 states have internal predecessors, (804), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:36:25,410 INFO L185 Difference]: Start difference. First operand has 39 places, 25 transitions, 123 flow. Second operand 5 states and 532 transitions. [2021-03-26 10:36:25,411 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 43 places, 49 transitions, 354 flow [2021-03-26 10:36:25,415 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 41 places, 49 transitions, 326 flow, removed 1 selfloop flow, removed 2 redundant places. [2021-03-26 10:36:25,417 INFO L241 Difference]: Finished difference. Result has 45 places, 42 transitions, 330 flow [2021-03-26 10:36:25,417 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=134, PETRI_DIFFERENCE_MINUEND_FLOW=111, PETRI_DIFFERENCE_MINUEND_PLACES=37, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=25, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=13, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=330, PETRI_PLACES=45, PETRI_TRANSITIONS=42} [2021-03-26 10:36:25,417 INFO L343 CegarLoopForPetriNet]: 38 programPoint places, 7 predicate places. [2021-03-26 10:36:25,417 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 10:36:25,418 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 45 places, 42 transitions, 330 flow [2021-03-26 10:36:25,418 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 45 places, 42 transitions, 330 flow [2021-03-26 10:36:25,419 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 45 places, 42 transitions, 330 flow [2021-03-26 10:36:25,436 INFO L129 PetriNetUnfolder]: 84/221 cut-off events. [2021-03-26 10:36:25,436 INFO L130 PetriNetUnfolder]: For 521/709 co-relation queries the response was YES. [2021-03-26 10:36:25,437 INFO L84 FinitePrefix]: Finished finitePrefix Result has 887 conditions, 221 events. 84/221 cut-off events. For 521/709 co-relation queries the response was YES. Maximal size of possible extension queue 32. Compared 1153 event pairs, 13 based on Foata normal form. 2/213 useless extension candidates. Maximal degree in co-relation 870. Up to 93 conditions per place. [2021-03-26 10:36:25,440 INFO L142 LiptonReduction]: Number of co-enabled transitions 350 [2021-03-26 10:36:25,476 INFO L154 LiptonReduction]: Checked pairs total: 226 [2021-03-26 10:36:25,477 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 10:36:25,477 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 60 [2021-03-26 10:36:25,478 INFO L480 AbstractCegarLoop]: Abstraction has has 45 places, 42 transitions, 330 flow [2021-03-26 10:36:25,478 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 102.25) internal successors, (409), 4 states have internal predecessors, (409), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:36:25,479 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 10:36:25,479 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 10:36:25,479 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-03-26 10:36:25,479 INFO L428 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-26 10:36:25,479 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 10:36:25,479 INFO L82 PathProgramCache]: Analyzing trace with hash 1816077954, now seen corresponding path program 1 times [2021-03-26 10:36:25,480 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 10:36:25,480 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [438995348] [2021-03-26 10:36:25,480 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 10:36:25,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 10:36:25,549 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:36:25,550 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 10:36:25,553 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:36:25,553 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 10:36:25,557 INFO L142 QuantifierPusher]: treesize reduction 3, result has 85.0 percent of original size [2021-03-26 10:36:25,558 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-26 10:36:25,568 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 10:36:25,568 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [438995348] [2021-03-26 10:36:25,568 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 10:36:25,568 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-26 10:36:25,569 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1935659680] [2021-03-26 10:36:25,569 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-03-26 10:36:25,569 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 10:36:25,569 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-03-26 10:36:25,569 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-03-26 10:36:25,571 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 101 out of 134 [2021-03-26 10:36:25,571 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 45 places, 42 transitions, 330 flow. Second operand has 5 states, 5 states have (on average 101.8) internal successors, (509), 5 states have internal predecessors, (509), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:36:25,572 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 10:36:25,572 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 101 of 134 [2021-03-26 10:36:25,572 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 10:36:25,643 INFO L129 PetriNetUnfolder]: 89/244 cut-off events. [2021-03-26 10:36:25,643 INFO L130 PetriNetUnfolder]: For 999/1562 co-relation queries the response was YES. [2021-03-26 10:36:25,644 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1109 conditions, 244 events. 89/244 cut-off events. For 999/1562 co-relation queries the response was YES. Maximal size of possible extension queue 41. Compared 1349 event pairs, 7 based on Foata normal form. 22/259 useless extension candidates. Maximal degree in co-relation 1090. Up to 93 conditions per place. [2021-03-26 10:36:25,645 INFO L132 encePairwiseOnDemand]: 126/134 looper letters, 14 selfloop transitions, 11 changer transitions 20/57 dead transitions. [2021-03-26 10:36:25,645 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 49 places, 57 transitions, 574 flow [2021-03-26 10:36:25,646 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-26 10:36:25,646 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-03-26 10:36:25,647 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 527 transitions. [2021-03-26 10:36:25,647 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7865671641791044 [2021-03-26 10:36:25,647 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 527 transitions. [2021-03-26 10:36:25,648 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 527 transitions. [2021-03-26 10:36:25,648 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 10:36:25,648 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 527 transitions. [2021-03-26 10:36:25,649 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 105.4) internal successors, (527), 5 states have internal predecessors, (527), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:36:25,650 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 134.0) internal successors, (804), 6 states have internal predecessors, (804), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:36:25,651 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 134.0) internal successors, (804), 6 states have internal predecessors, (804), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:36:25,651 INFO L185 Difference]: Start difference. First operand has 45 places, 42 transitions, 330 flow. Second operand 5 states and 527 transitions. [2021-03-26 10:36:25,651 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 49 places, 57 transitions, 574 flow [2021-03-26 10:36:25,654 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 49 places, 57 transitions, 574 flow, removed 0 selfloop flow, removed 0 redundant places. [2021-03-26 10:36:25,655 INFO L241 Difference]: Finished difference. Result has 51 places, 31 transitions, 251 flow [2021-03-26 10:36:25,655 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=134, PETRI_DIFFERENCE_MINUEND_FLOW=330, PETRI_DIFFERENCE_MINUEND_PLACES=45, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=42, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=31, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=251, PETRI_PLACES=51, PETRI_TRANSITIONS=31} [2021-03-26 10:36:25,655 INFO L343 CegarLoopForPetriNet]: 38 programPoint places, 13 predicate places. [2021-03-26 10:36:25,656 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 10:36:25,656 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 51 places, 31 transitions, 251 flow [2021-03-26 10:36:25,656 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 51 places, 31 transitions, 251 flow [2021-03-26 10:36:25,656 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 51 places, 31 transitions, 251 flow [2021-03-26 10:36:25,665 INFO L129 PetriNetUnfolder]: 32/110 cut-off events. [2021-03-26 10:36:25,666 INFO L130 PetriNetUnfolder]: For 352/470 co-relation queries the response was YES. [2021-03-26 10:36:25,666 INFO L84 FinitePrefix]: Finished finitePrefix Result has 487 conditions, 110 events. 32/110 cut-off events. For 352/470 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 469 event pairs, 14 based on Foata normal form. 1/107 useless extension candidates. Maximal degree in co-relation 466. Up to 58 conditions per place. [2021-03-26 10:36:25,667 INFO L142 LiptonReduction]: Number of co-enabled transitions 234 [2021-03-26 10:36:25,671 INFO L154 LiptonReduction]: Checked pairs total: 127 [2021-03-26 10:36:25,671 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 10:36:25,671 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 15 [2021-03-26 10:36:25,672 INFO L480 AbstractCegarLoop]: Abstraction has has 51 places, 31 transitions, 251 flow [2021-03-26 10:36:25,673 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 101.8) internal successors, (509), 5 states have internal predecessors, (509), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:36:25,673 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 10:36:25,673 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 10:36:25,673 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-03-26 10:36:25,673 INFO L428 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-26 10:36:25,673 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 10:36:25,674 INFO L82 PathProgramCache]: Analyzing trace with hash 1395746800, now seen corresponding path program 1 times [2021-03-26 10:36:25,674 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 10:36:25,674 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [539751378] [2021-03-26 10:36:25,674 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 10:36:25,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 10:36:25,703 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:36:25,703 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 10:36:25,706 INFO L142 QuantifierPusher]: treesize reduction 3, result has 85.0 percent of original size [2021-03-26 10:36:25,707 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-26 10:36:25,715 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 10:36:25,716 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [539751378] [2021-03-26 10:36:25,716 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 10:36:25,716 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-03-26 10:36:25,716 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1744668394] [2021-03-26 10:36:25,716 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-03-26 10:36:25,716 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 10:36:25,717 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-03-26 10:36:25,717 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-03-26 10:36:25,718 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 105 out of 134 [2021-03-26 10:36:25,718 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 51 places, 31 transitions, 251 flow. Second operand has 4 states, 4 states have (on average 106.0) internal successors, (424), 4 states have internal predecessors, (424), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:36:25,719 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 10:36:25,719 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 105 of 134 [2021-03-26 10:36:25,719 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 10:36:25,743 INFO L129 PetriNetUnfolder]: 24/88 cut-off events. [2021-03-26 10:36:25,744 INFO L130 PetriNetUnfolder]: For 402/526 co-relation queries the response was YES. [2021-03-26 10:36:25,744 INFO L84 FinitePrefix]: Finished finitePrefix Result has 447 conditions, 88 events. 24/88 cut-off events. For 402/526 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 343 event pairs, 1 based on Foata normal form. 4/89 useless extension candidates. Maximal degree in co-relation 424. Up to 45 conditions per place. [2021-03-26 10:36:25,745 INFO L132 encePairwiseOnDemand]: 128/134 looper letters, 11 selfloop transitions, 12 changer transitions 0/37 dead transitions. [2021-03-26 10:36:25,745 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 54 places, 37 transitions, 362 flow [2021-03-26 10:36:25,745 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-03-26 10:36:25,745 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-03-26 10:36:25,746 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 436 transitions. [2021-03-26 10:36:25,747 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8134328358208955 [2021-03-26 10:36:25,747 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 436 transitions. [2021-03-26 10:36:25,747 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 436 transitions. [2021-03-26 10:36:25,747 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 10:36:25,747 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 436 transitions. [2021-03-26 10:36:25,748 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 109.0) internal successors, (436), 4 states have internal predecessors, (436), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:36:25,749 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 134.0) internal successors, (670), 5 states have internal predecessors, (670), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:36:25,750 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 134.0) internal successors, (670), 5 states have internal predecessors, (670), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:36:25,750 INFO L185 Difference]: Start difference. First operand has 51 places, 31 transitions, 251 flow. Second operand 4 states and 436 transitions. [2021-03-26 10:36:25,750 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 54 places, 37 transitions, 362 flow [2021-03-26 10:36:25,752 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 46 places, 37 transitions, 288 flow, removed 7 selfloop flow, removed 8 redundant places. [2021-03-26 10:36:25,753 INFO L241 Difference]: Finished difference. Result has 47 places, 34 transitions, 251 flow [2021-03-26 10:36:25,753 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=134, PETRI_DIFFERENCE_MINUEND_FLOW=189, PETRI_DIFFERENCE_MINUEND_PLACES=43, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=31, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=21, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=251, PETRI_PLACES=47, PETRI_TRANSITIONS=34} [2021-03-26 10:36:25,754 INFO L343 CegarLoopForPetriNet]: 38 programPoint places, 9 predicate places. [2021-03-26 10:36:25,754 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 10:36:25,754 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 47 places, 34 transitions, 251 flow [2021-03-26 10:36:25,754 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 47 places, 34 transitions, 251 flow [2021-03-26 10:36:25,755 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 47 places, 34 transitions, 251 flow [2021-03-26 10:36:25,764 INFO L129 PetriNetUnfolder]: 25/95 cut-off events. [2021-03-26 10:36:25,764 INFO L130 PetriNetUnfolder]: For 228/280 co-relation queries the response was YES. [2021-03-26 10:36:25,765 INFO L84 FinitePrefix]: Finished finitePrefix Result has 381 conditions, 95 events. 25/95 cut-off events. For 228/280 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 401 event pairs, 9 based on Foata normal form. 2/94 useless extension candidates. Maximal degree in co-relation 364. Up to 49 conditions per place. [2021-03-26 10:36:25,766 INFO L142 LiptonReduction]: Number of co-enabled transitions 250 [2021-03-26 10:36:25,770 INFO L154 LiptonReduction]: Checked pairs total: 164 [2021-03-26 10:36:25,770 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 10:36:25,770 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 16 [2021-03-26 10:36:25,771 INFO L480 AbstractCegarLoop]: Abstraction has has 47 places, 34 transitions, 251 flow [2021-03-26 10:36:25,771 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 106.0) internal successors, (424), 4 states have internal predecessors, (424), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:36:25,771 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 10:36:25,771 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 10:36:25,771 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-03-26 10:36:25,772 INFO L428 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-26 10:36:25,772 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 10:36:25,772 INFO L82 PathProgramCache]: Analyzing trace with hash 318446437, now seen corresponding path program 1 times [2021-03-26 10:36:25,772 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 10:36:25,772 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [596765998] [2021-03-26 10:36:25,772 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 10:36:25,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 10:36:25,836 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:36:25,837 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 10:36:25,840 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:36:25,840 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 10:36:25,843 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 10:36:25,843 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [596765998] [2021-03-26 10:36:25,844 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 10:36:25,844 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-03-26 10:36:25,845 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1021832055] [2021-03-26 10:36:25,845 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-03-26 10:36:25,846 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 10:36:25,846 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-03-26 10:36:25,846 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-03-26 10:36:25,847 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 112 out of 134 [2021-03-26 10:36:25,847 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 47 places, 34 transitions, 251 flow. Second operand has 4 states, 4 states have (on average 113.0) internal successors, (452), 4 states have internal predecessors, (452), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:36:25,848 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 10:36:25,848 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 112 of 134 [2021-03-26 10:36:25,848 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 10:36:25,875 INFO L129 PetriNetUnfolder]: 24/101 cut-off events. [2021-03-26 10:36:25,875 INFO L130 PetriNetUnfolder]: For 380/420 co-relation queries the response was YES. [2021-03-26 10:36:25,876 INFO L84 FinitePrefix]: Finished finitePrefix Result has 443 conditions, 101 events. 24/101 cut-off events. For 380/420 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 458 event pairs, 11 based on Foata normal form. 7/105 useless extension candidates. Maximal degree in co-relation 424. Up to 52 conditions per place. [2021-03-26 10:36:25,877 INFO L132 encePairwiseOnDemand]: 129/134 looper letters, 5 selfloop transitions, 7 changer transitions 7/37 dead transitions. [2021-03-26 10:36:25,877 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 50 places, 37 transitions, 324 flow [2021-03-26 10:36:25,877 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-03-26 10:36:25,878 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-03-26 10:36:25,878 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 459 transitions. [2021-03-26 10:36:25,879 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8563432835820896 [2021-03-26 10:36:25,879 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 459 transitions. [2021-03-26 10:36:25,879 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 459 transitions. [2021-03-26 10:36:25,879 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 10:36:25,879 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 459 transitions. [2021-03-26 10:36:25,880 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 114.75) internal successors, (459), 4 states have internal predecessors, (459), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:36:25,881 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 134.0) internal successors, (670), 5 states have internal predecessors, (670), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:36:25,881 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 134.0) internal successors, (670), 5 states have internal predecessors, (670), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:36:25,881 INFO L185 Difference]: Start difference. First operand has 47 places, 34 transitions, 251 flow. Second operand 4 states and 459 transitions. [2021-03-26 10:36:25,881 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 50 places, 37 transitions, 324 flow [2021-03-26 10:36:25,883 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 49 places, 37 transitions, 295 flow, removed 10 selfloop flow, removed 1 redundant places. [2021-03-26 10:36:25,884 INFO L241 Difference]: Finished difference. Result has 50 places, 30 transitions, 211 flow [2021-03-26 10:36:25,884 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=134, PETRI_DIFFERENCE_MINUEND_FLOW=229, PETRI_DIFFERENCE_MINUEND_PLACES=46, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=34, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=27, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=211, PETRI_PLACES=50, PETRI_TRANSITIONS=30} [2021-03-26 10:36:25,885 INFO L343 CegarLoopForPetriNet]: 38 programPoint places, 12 predicate places. [2021-03-26 10:36:25,885 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 10:36:25,885 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 50 places, 30 transitions, 211 flow [2021-03-26 10:36:25,885 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 50 places, 30 transitions, 211 flow [2021-03-26 10:36:25,886 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 50 places, 30 transitions, 211 flow [2021-03-26 10:36:25,892 INFO L129 PetriNetUnfolder]: 14/63 cut-off events. [2021-03-26 10:36:25,892 INFO L130 PetriNetUnfolder]: For 151/153 co-relation queries the response was YES. [2021-03-26 10:36:25,892 INFO L84 FinitePrefix]: Finished finitePrefix Result has 247 conditions, 63 events. 14/63 cut-off events. For 151/153 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 221 event pairs, 5 based on Foata normal form. 2/65 useless extension candidates. Maximal degree in co-relation 227. Up to 32 conditions per place. [2021-03-26 10:36:25,893 INFO L142 LiptonReduction]: Number of co-enabled transitions 166 [2021-03-26 10:36:25,895 INFO L154 LiptonReduction]: Checked pairs total: 137 [2021-03-26 10:36:25,896 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 10:36:25,896 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 11 [2021-03-26 10:36:25,897 INFO L480 AbstractCegarLoop]: Abstraction has has 50 places, 30 transitions, 211 flow [2021-03-26 10:36:25,897 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 113.0) internal successors, (452), 4 states have internal predecessors, (452), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:36:25,897 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 10:36:25,897 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 10:36:25,897 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-03-26 10:36:25,897 INFO L428 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-26 10:36:25,898 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 10:36:25,898 INFO L82 PathProgramCache]: Analyzing trace with hash -114759063, now seen corresponding path program 2 times [2021-03-26 10:36:25,898 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 10:36:25,898 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [400096778] [2021-03-26 10:36:25,898 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 10:36:25,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 10:36:25,922 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:36:25,923 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 10:36:25,926 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:36:25,926 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 10:36:25,926 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 10:36:25,926 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [400096778] [2021-03-26 10:36:25,926 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 10:36:25,927 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-03-26 10:36:25,927 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1342218794] [2021-03-26 10:36:25,927 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-03-26 10:36:25,927 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 10:36:25,927 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-03-26 10:36:25,928 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-26 10:36:25,928 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 110 out of 134 [2021-03-26 10:36:25,929 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 50 places, 30 transitions, 211 flow. Second operand has 3 states, 3 states have (on average 110.66666666666667) internal successors, (332), 3 states have internal predecessors, (332), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:36:25,929 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 10:36:25,929 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 110 of 134 [2021-03-26 10:36:25,929 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 10:36:25,977 INFO L129 PetriNetUnfolder]: 199/389 cut-off events. [2021-03-26 10:36:25,977 INFO L130 PetriNetUnfolder]: For 498/528 co-relation queries the response was YES. [2021-03-26 10:36:25,979 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1057 conditions, 389 events. 199/389 cut-off events. For 498/528 co-relation queries the response was YES. Maximal size of possible extension queue 73. Compared 2097 event pairs, 99 based on Foata normal form. 2/336 useless extension candidates. Maximal degree in co-relation 1035. Up to 303 conditions per place. [2021-03-26 10:36:25,981 INFO L132 encePairwiseOnDemand]: 128/134 looper letters, 5 selfloop transitions, 5 changer transitions 0/34 dead transitions. [2021-03-26 10:36:25,982 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 52 places, 34 transitions, 239 flow [2021-03-26 10:36:25,982 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-26 10:36:25,982 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-03-26 10:36:25,983 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 341 transitions. [2021-03-26 10:36:25,983 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8482587064676617 [2021-03-26 10:36:25,983 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 341 transitions. [2021-03-26 10:36:25,983 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 341 transitions. [2021-03-26 10:36:25,983 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 10:36:25,984 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 341 transitions. [2021-03-26 10:36:25,985 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 113.66666666666667) internal successors, (341), 3 states have internal predecessors, (341), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:36:25,986 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 134.0) internal successors, (536), 4 states have internal predecessors, (536), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:36:25,986 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 134.0) internal successors, (536), 4 states have internal predecessors, (536), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:36:25,986 INFO L185 Difference]: Start difference. First operand has 50 places, 30 transitions, 211 flow. Second operand 3 states and 341 transitions. [2021-03-26 10:36:25,986 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 52 places, 34 transitions, 239 flow [2021-03-26 10:36:25,989 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 46 places, 34 transitions, 202 flow, removed 6 selfloop flow, removed 6 redundant places. [2021-03-26 10:36:25,990 INFO L241 Difference]: Finished difference. Result has 47 places, 34 transitions, 207 flow [2021-03-26 10:36:25,990 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=134, PETRI_DIFFERENCE_MINUEND_FLOW=174, PETRI_DIFFERENCE_MINUEND_PLACES=44, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=30, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=25, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=207, PETRI_PLACES=47, PETRI_TRANSITIONS=34} [2021-03-26 10:36:25,991 INFO L343 CegarLoopForPetriNet]: 38 programPoint places, 9 predicate places. [2021-03-26 10:36:25,991 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 10:36:25,991 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 47 places, 34 transitions, 207 flow [2021-03-26 10:36:25,991 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 47 places, 34 transitions, 207 flow [2021-03-26 10:36:25,992 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 47 places, 34 transitions, 207 flow [2021-03-26 10:36:26,016 INFO L129 PetriNetUnfolder]: 172/330 cut-off events. [2021-03-26 10:36:26,016 INFO L130 PetriNetUnfolder]: For 273/309 co-relation queries the response was YES. [2021-03-26 10:36:26,021 INFO L84 FinitePrefix]: Finished finitePrefix Result has 849 conditions, 330 events. 172/330 cut-off events. For 273/309 co-relation queries the response was YES. Maximal size of possible extension queue 65. Compared 1712 event pairs, 84 based on Foata normal form. 3/290 useless extension candidates. Maximal degree in co-relation 832. Up to 258 conditions per place. [2021-03-26 10:36:26,024 INFO L142 LiptonReduction]: Number of co-enabled transitions 208 [2021-03-26 10:36:26,028 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-26 10:36:26,028 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 10:36:26,028 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 37 [2021-03-26 10:36:26,029 INFO L480 AbstractCegarLoop]: Abstraction has has 47 places, 34 transitions, 207 flow [2021-03-26 10:36:26,029 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 110.66666666666667) internal successors, (332), 3 states have internal predecessors, (332), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:36:26,029 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 10:36:26,029 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 10:36:26,029 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-03-26 10:36:26,030 INFO L428 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-26 10:36:26,030 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 10:36:26,030 INFO L82 PathProgramCache]: Analyzing trace with hash -1604157359, now seen corresponding path program 1 times [2021-03-26 10:36:26,030 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 10:36:26,030 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [253997852] [2021-03-26 10:36:26,030 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 10:36:26,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 10:36:26,084 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:36:26,085 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 10:36:26,085 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:36:26,086 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 10:36:26,090 INFO L142 QuantifierPusher]: treesize reduction 3, result has 85.0 percent of original size [2021-03-26 10:36:26,093 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-26 10:36:26,103 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 10:36:26,103 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [253997852] [2021-03-26 10:36:26,103 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 10:36:26,103 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-26 10:36:26,104 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [59260782] [2021-03-26 10:36:26,104 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-03-26 10:36:26,104 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 10:36:26,105 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-03-26 10:36:26,105 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-03-26 10:36:26,106 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 105 out of 134 [2021-03-26 10:36:26,106 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 47 places, 34 transitions, 207 flow. Second operand has 4 states, 4 states have (on average 106.25) internal successors, (425), 4 states have internal predecessors, (425), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:36:26,106 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 10:36:26,106 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 105 of 134 [2021-03-26 10:36:26,107 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 10:36:26,157 INFO L129 PetriNetUnfolder]: 210/408 cut-off events. [2021-03-26 10:36:26,157 INFO L130 PetriNetUnfolder]: For 613/708 co-relation queries the response was YES. [2021-03-26 10:36:26,159 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1088 conditions, 408 events. 210/408 cut-off events. For 613/708 co-relation queries the response was YES. Maximal size of possible extension queue 75. Compared 2218 event pairs, 107 based on Foata normal form. 26/374 useless extension candidates. Maximal degree in co-relation 1069. Up to 333 conditions per place. [2021-03-26 10:36:26,160 INFO L132 encePairwiseOnDemand]: 129/134 looper letters, 8 selfloop transitions, 9 changer transitions 0/35 dead transitions. [2021-03-26 10:36:26,161 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 50 places, 35 transitions, 247 flow [2021-03-26 10:36:26,161 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-03-26 10:36:26,161 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-03-26 10:36:26,162 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 433 transitions. [2021-03-26 10:36:26,162 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8078358208955224 [2021-03-26 10:36:26,163 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 433 transitions. [2021-03-26 10:36:26,163 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 433 transitions. [2021-03-26 10:36:26,163 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 10:36:26,163 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 433 transitions. [2021-03-26 10:36:26,164 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 108.25) internal successors, (433), 4 states have internal predecessors, (433), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:36:26,165 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 134.0) internal successors, (670), 5 states have internal predecessors, (670), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:36:26,165 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 134.0) internal successors, (670), 5 states have internal predecessors, (670), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:36:26,165 INFO L185 Difference]: Start difference. First operand has 47 places, 34 transitions, 207 flow. Second operand 4 states and 433 transitions. [2021-03-26 10:36:26,165 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 50 places, 35 transitions, 247 flow [2021-03-26 10:36:26,167 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 49 places, 35 transitions, 242 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-03-26 10:36:26,168 INFO L241 Difference]: Finished difference. Result has 50 places, 34 transitions, 227 flow [2021-03-26 10:36:26,168 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=134, PETRI_DIFFERENCE_MINUEND_FLOW=202, PETRI_DIFFERENCE_MINUEND_PLACES=46, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=34, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=25, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=227, PETRI_PLACES=50, PETRI_TRANSITIONS=34} [2021-03-26 10:36:26,169 INFO L343 CegarLoopForPetriNet]: 38 programPoint places, 12 predicate places. [2021-03-26 10:36:26,169 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 10:36:26,169 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 50 places, 34 transitions, 227 flow [2021-03-26 10:36:26,169 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 50 places, 34 transitions, 227 flow [2021-03-26 10:36:26,169 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 50 places, 34 transitions, 227 flow [2021-03-26 10:36:26,197 INFO L129 PetriNetUnfolder]: 198/379 cut-off events. [2021-03-26 10:36:26,197 INFO L130 PetriNetUnfolder]: For 425/462 co-relation queries the response was YES. [2021-03-26 10:36:26,198 INFO L84 FinitePrefix]: Finished finitePrefix Result has 960 conditions, 379 events. 198/379 cut-off events. For 425/462 co-relation queries the response was YES. Maximal size of possible extension queue 69. Compared 2023 event pairs, 104 based on Foata normal form. 3/330 useless extension candidates. Maximal degree in co-relation 941. Up to 314 conditions per place. [2021-03-26 10:36:26,201 INFO L142 LiptonReduction]: Number of co-enabled transitions 208 [2021-03-26 10:36:26,205 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-26 10:36:26,206 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 10:36:26,206 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 37 [2021-03-26 10:36:26,206 INFO L480 AbstractCegarLoop]: Abstraction has has 50 places, 34 transitions, 227 flow [2021-03-26 10:36:26,207 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 106.25) internal successors, (425), 4 states have internal predecessors, (425), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:36:26,207 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 10:36:26,207 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 10:36:26,207 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-03-26 10:36:26,207 INFO L428 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-26 10:36:26,207 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 10:36:26,207 INFO L82 PathProgramCache]: Analyzing trace with hash 831522215, now seen corresponding path program 1 times [2021-03-26 10:36:26,208 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 10:36:26,208 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [251994992] [2021-03-26 10:36:26,208 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 10:36:26,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 10:36:26,255 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:36:26,256 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 10:36:26,258 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:36:26,259 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 10:36:26,263 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:36:26,263 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 10:36:26,264 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 10:36:26,264 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [251994992] [2021-03-26 10:36:26,264 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 10:36:26,264 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-26 10:36:26,264 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [419030959] [2021-03-26 10:36:26,265 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-03-26 10:36:26,265 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 10:36:26,265 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-03-26 10:36:26,265 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-03-26 10:36:26,266 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 110 out of 134 [2021-03-26 10:36:26,267 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 50 places, 34 transitions, 227 flow. Second operand has 4 states, 4 states have (on average 110.75) internal successors, (443), 4 states have internal predecessors, (443), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:36:26,267 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 10:36:26,267 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 110 of 134 [2021-03-26 10:36:26,267 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 10:36:26,319 INFO L129 PetriNetUnfolder]: 139/300 cut-off events. [2021-03-26 10:36:26,320 INFO L130 PetriNetUnfolder]: For 477/727 co-relation queries the response was YES. [2021-03-26 10:36:26,321 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1032 conditions, 300 events. 139/300 cut-off events. For 477/727 co-relation queries the response was YES. Maximal size of possible extension queue 52. Compared 1499 event pairs, 33 based on Foata normal form. 51/327 useless extension candidates. Maximal degree in co-relation 1011. Up to 237 conditions per place. [2021-03-26 10:36:26,322 INFO L132 encePairwiseOnDemand]: 128/134 looper letters, 5 selfloop transitions, 9 changer transitions 0/38 dead transitions. [2021-03-26 10:36:26,322 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 53 places, 38 transitions, 271 flow [2021-03-26 10:36:26,323 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-03-26 10:36:26,323 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-03-26 10:36:26,324 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 455 transitions. [2021-03-26 10:36:26,324 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8488805970149254 [2021-03-26 10:36:26,324 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 455 transitions. [2021-03-26 10:36:26,324 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 455 transitions. [2021-03-26 10:36:26,325 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 10:36:26,325 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 455 transitions. [2021-03-26 10:36:26,326 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 113.75) internal successors, (455), 4 states have internal predecessors, (455), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:36:26,327 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 134.0) internal successors, (670), 5 states have internal predecessors, (670), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:36:26,327 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 134.0) internal successors, (670), 5 states have internal predecessors, (670), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:36:26,327 INFO L185 Difference]: Start difference. First operand has 50 places, 34 transitions, 227 flow. Second operand 4 states and 455 transitions. [2021-03-26 10:36:26,327 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 53 places, 38 transitions, 271 flow [2021-03-26 10:36:26,330 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 52 places, 38 transitions, 260 flow, removed 1 selfloop flow, removed 1 redundant places. [2021-03-26 10:36:26,331 INFO L241 Difference]: Finished difference. Result has 53 places, 38 transitions, 268 flow [2021-03-26 10:36:26,332 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=134, PETRI_DIFFERENCE_MINUEND_FLOW=216, PETRI_DIFFERENCE_MINUEND_PLACES=49, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=34, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=25, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=268, PETRI_PLACES=53, PETRI_TRANSITIONS=38} [2021-03-26 10:36:26,332 INFO L343 CegarLoopForPetriNet]: 38 programPoint places, 15 predicate places. [2021-03-26 10:36:26,332 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 10:36:26,332 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 53 places, 38 transitions, 268 flow [2021-03-26 10:36:26,332 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 53 places, 38 transitions, 268 flow [2021-03-26 10:36:26,333 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 53 places, 38 transitions, 268 flow [2021-03-26 10:36:26,355 INFO L129 PetriNetUnfolder]: 137/291 cut-off events. [2021-03-26 10:36:26,355 INFO L130 PetriNetUnfolder]: For 508/712 co-relation queries the response was YES. [2021-03-26 10:36:26,356 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1042 conditions, 291 events. 137/291 cut-off events. For 508/712 co-relation queries the response was YES. Maximal size of possible extension queue 48. Compared 1522 event pairs, 35 based on Foata normal form. 5/274 useless extension candidates. Maximal degree in co-relation 1021. Up to 230 conditions per place. [2021-03-26 10:36:26,358 INFO L142 LiptonReduction]: Number of co-enabled transitions 254 [2021-03-26 10:36:26,361 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-26 10:36:26,362 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 10:36:26,362 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 30 [2021-03-26 10:36:26,363 INFO L480 AbstractCegarLoop]: Abstraction has has 53 places, 38 transitions, 268 flow [2021-03-26 10:36:26,363 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 110.75) internal successors, (443), 4 states have internal predecessors, (443), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:36:26,363 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 10:36:26,363 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 10:36:26,364 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-03-26 10:36:26,364 INFO L428 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-26 10:36:26,364 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 10:36:26,364 INFO L82 PathProgramCache]: Analyzing trace with hash 701304892, now seen corresponding path program 1 times [2021-03-26 10:36:26,364 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 10:36:26,364 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1486035416] [2021-03-26 10:36:26,364 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 10:36:26,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 10:36:26,400 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:36:26,401 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 10:36:26,404 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:36:26,405 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 10:36:26,408 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:36:26,409 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 10:36:26,413 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:36:26,414 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 10:36:26,415 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 10:36:26,416 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1486035416] [2021-03-26 10:36:26,417 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 10:36:26,417 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-03-26 10:36:26,417 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [645180071] [2021-03-26 10:36:26,417 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-03-26 10:36:26,417 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 10:36:26,418 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-03-26 10:36:26,418 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2021-03-26 10:36:26,418 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 110 out of 134 [2021-03-26 10:36:26,419 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 53 places, 38 transitions, 268 flow. Second operand has 5 states, 5 states have (on average 110.8) internal successors, (554), 5 states have internal predecessors, (554), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:36:26,419 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 10:36:26,419 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 110 of 134 [2021-03-26 10:36:26,419 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 10:36:26,466 INFO L129 PetriNetUnfolder]: 84/199 cut-off events. [2021-03-26 10:36:26,466 INFO L130 PetriNetUnfolder]: For 380/860 co-relation queries the response was YES. [2021-03-26 10:36:26,467 INFO L84 FinitePrefix]: Finished finitePrefix Result has 870 conditions, 199 events. 84/199 cut-off events. For 380/860 co-relation queries the response was YES. Maximal size of possible extension queue 30. Compared 875 event pairs, 4 based on Foata normal form. 96/278 useless extension candidates. Maximal degree in co-relation 847. Up to 155 conditions per place. [2021-03-26 10:36:26,468 INFO L132 encePairwiseOnDemand]: 128/134 looper letters, 5 selfloop transitions, 13 changer transitions 0/42 dead transitions. [2021-03-26 10:36:26,468 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 57 places, 42 transitions, 328 flow [2021-03-26 10:36:26,469 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-26 10:36:26,469 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-03-26 10:36:26,470 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 569 transitions. [2021-03-26 10:36:26,470 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8492537313432836 [2021-03-26 10:36:26,470 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 569 transitions. [2021-03-26 10:36:26,470 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 569 transitions. [2021-03-26 10:36:26,471 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 10:36:26,471 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 569 transitions. [2021-03-26 10:36:26,472 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 113.8) internal successors, (569), 5 states have internal predecessors, (569), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:36:26,473 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 134.0) internal successors, (804), 6 states have internal predecessors, (804), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:36:26,473 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 134.0) internal successors, (804), 6 states have internal predecessors, (804), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:36:26,473 INFO L185 Difference]: Start difference. First operand has 53 places, 38 transitions, 268 flow. Second operand 5 states and 569 transitions. [2021-03-26 10:36:26,473 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 57 places, 42 transitions, 328 flow [2021-03-26 10:36:26,475 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 54 places, 42 transitions, 303 flow, removed 5 selfloop flow, removed 3 redundant places. [2021-03-26 10:36:26,476 INFO L241 Difference]: Finished difference. Result has 55 places, 42 transitions, 311 flow [2021-03-26 10:36:26,477 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=134, PETRI_DIFFERENCE_MINUEND_FLOW=243, PETRI_DIFFERENCE_MINUEND_PLACES=50, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=38, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=25, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=311, PETRI_PLACES=55, PETRI_TRANSITIONS=42} [2021-03-26 10:36:26,477 INFO L343 CegarLoopForPetriNet]: 38 programPoint places, 17 predicate places. [2021-03-26 10:36:26,477 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 10:36:26,477 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 55 places, 42 transitions, 311 flow [2021-03-26 10:36:26,477 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 55 places, 42 transitions, 311 flow [2021-03-26 10:36:26,478 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 55 places, 42 transitions, 311 flow [2021-03-26 10:36:26,494 INFO L129 PetriNetUnfolder]: 84/197 cut-off events. [2021-03-26 10:36:26,494 INFO L130 PetriNetUnfolder]: For 390/499 co-relation queries the response was YES. [2021-03-26 10:36:26,517 INFO L84 FinitePrefix]: Finished finitePrefix Result has 799 conditions, 197 events. 84/197 cut-off events. For 390/499 co-relation queries the response was YES. Maximal size of possible extension queue 29. Compared 925 event pairs, 6 based on Foata normal form. 14/198 useless extension candidates. Maximal degree in co-relation 778. Up to 138 conditions per place. [2021-03-26 10:36:26,518 INFO L142 LiptonReduction]: Number of co-enabled transitions 248 [2021-03-26 10:36:26,521 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-26 10:36:26,521 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 10:36:26,522 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 45 [2021-03-26 10:36:26,522 INFO L480 AbstractCegarLoop]: Abstraction has has 55 places, 42 transitions, 311 flow [2021-03-26 10:36:26,522 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 110.8) internal successors, (554), 5 states have internal predecessors, (554), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:36:26,523 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 10:36:26,523 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 10:36:26,523 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-03-26 10:36:26,523 INFO L428 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-26 10:36:26,523 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 10:36:26,523 INFO L82 PathProgramCache]: Analyzing trace with hash -1521336821, now seen corresponding path program 1 times [2021-03-26 10:36:26,524 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 10:36:26,524 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1153406784] [2021-03-26 10:36:26,524 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 10:36:26,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 10:36:26,569 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:36:26,570 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 10:36:26,572 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:36:26,573 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 10:36:26,576 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:36:26,577 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 10:36:26,583 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:36:26,587 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 10:36:26,598 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:36:26,599 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 10:36:26,600 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 10:36:26,600 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1153406784] [2021-03-26 10:36:26,600 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 10:36:26,600 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-03-26 10:36:26,600 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [805764742] [2021-03-26 10:36:26,600 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-03-26 10:36:26,601 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 10:36:26,601 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-03-26 10:36:26,601 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2021-03-26 10:36:26,601 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 110 out of 134 [2021-03-26 10:36:26,602 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 55 places, 42 transitions, 311 flow. Second operand has 6 states, 6 states have (on average 110.83333333333333) internal successors, (665), 6 states have internal predecessors, (665), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:36:26,602 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 10:36:26,602 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 110 of 134 [2021-03-26 10:36:26,602 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 10:36:26,650 INFO L129 PetriNetUnfolder]: 71/163 cut-off events. [2021-03-26 10:36:26,651 INFO L130 PetriNetUnfolder]: For 520/891 co-relation queries the response was YES. [2021-03-26 10:36:26,651 INFO L84 FinitePrefix]: Finished finitePrefix Result has 775 conditions, 163 events. 71/163 cut-off events. For 520/891 co-relation queries the response was YES. Maximal size of possible extension queue 29. Compared 662 event pairs, 0 based on Foata normal form. 110/257 useless extension candidates. Maximal degree in co-relation 752. Up to 111 conditions per place. [2021-03-26 10:36:26,652 INFO L132 encePairwiseOnDemand]: 128/134 looper letters, 1 selfloop transitions, 17 changer transitions 8/42 dead transitions. [2021-03-26 10:36:26,652 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 60 places, 42 transitions, 347 flow [2021-03-26 10:36:26,653 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-03-26 10:36:26,653 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-03-26 10:36:26,654 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 679 transitions. [2021-03-26 10:36:26,654 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8445273631840796 [2021-03-26 10:36:26,655 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 679 transitions. [2021-03-26 10:36:26,655 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 679 transitions. [2021-03-26 10:36:26,655 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 10:36:26,655 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 679 transitions. [2021-03-26 10:36:26,657 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 113.16666666666667) internal successors, (679), 6 states have internal predecessors, (679), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:36:26,659 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 134.0) internal successors, (938), 7 states have internal predecessors, (938), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:36:26,659 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 134.0) internal successors, (938), 7 states have internal predecessors, (938), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:36:26,659 INFO L185 Difference]: Start difference. First operand has 55 places, 42 transitions, 311 flow. Second operand 6 states and 679 transitions. [2021-03-26 10:36:26,660 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 60 places, 42 transitions, 347 flow [2021-03-26 10:36:26,662 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 55 places, 42 transitions, 301 flow, removed 11 selfloop flow, removed 5 redundant places. [2021-03-26 10:36:26,663 INFO L241 Difference]: Finished difference. Result has 56 places, 34 transitions, 244 flow [2021-03-26 10:36:26,663 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=134, PETRI_DIFFERENCE_MINUEND_FLOW=265, PETRI_DIFFERENCE_MINUEND_PLACES=50, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=42, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=17, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=25, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=244, PETRI_PLACES=56, PETRI_TRANSITIONS=34} [2021-03-26 10:36:26,663 INFO L343 CegarLoopForPetriNet]: 38 programPoint places, 18 predicate places. [2021-03-26 10:36:26,663 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 10:36:26,663 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 56 places, 34 transitions, 244 flow [2021-03-26 10:36:26,664 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 56 places, 34 transitions, 244 flow [2021-03-26 10:36:26,664 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 54 places, 34 transitions, 244 flow [2021-03-26 10:36:26,671 INFO L129 PetriNetUnfolder]: 23/60 cut-off events. [2021-03-26 10:36:26,671 INFO L130 PetriNetUnfolder]: For 105/122 co-relation queries the response was YES. [2021-03-26 10:36:26,672 INFO L84 FinitePrefix]: Finished finitePrefix Result has 229 conditions, 60 events. 23/60 cut-off events. For 105/122 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 147 event pairs, 0 based on Foata normal form. 1/56 useless extension candidates. Maximal degree in co-relation 209. Up to 22 conditions per place. [2021-03-26 10:36:26,672 INFO L142 LiptonReduction]: Number of co-enabled transitions 138 [2021-03-26 10:36:26,873 INFO L154 LiptonReduction]: Checked pairs total: 32 [2021-03-26 10:36:26,874 INFO L156 LiptonReduction]: Total number of compositions: 5 [2021-03-26 10:36:26,874 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 211 [2021-03-26 10:36:26,876 INFO L480 AbstractCegarLoop]: Abstraction has has 52 places, 32 transitions, 254 flow [2021-03-26 10:36:26,877 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 110.83333333333333) internal successors, (665), 6 states have internal predecessors, (665), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:36:26,877 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 10:36:26,877 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 10:36:26,877 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-03-26 10:36:26,877 INFO L428 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-26 10:36:26,878 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 10:36:26,878 INFO L82 PathProgramCache]: Analyzing trace with hash 400638452, now seen corresponding path program 1 times [2021-03-26 10:36:26,878 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 10:36:26,878 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [715497309] [2021-03-26 10:36:26,878 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 10:36:26,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 10:36:26,937 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:36:26,939 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 10:36:26,940 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:36:26,940 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 10:36:26,944 INFO L142 QuantifierPusher]: treesize reduction 3, result has 85.0 percent of original size [2021-03-26 10:36:26,947 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-26 10:36:26,955 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 10:36:26,955 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [715497309] [2021-03-26 10:36:26,956 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 10:36:26,956 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-26 10:36:26,956 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1852901971] [2021-03-26 10:36:26,956 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-03-26 10:36:26,956 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 10:36:26,957 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-03-26 10:36:26,957 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-03-26 10:36:26,957 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 101 out of 139 [2021-03-26 10:36:26,958 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 52 places, 32 transitions, 254 flow. Second operand has 4 states, 4 states have (on average 103.0) internal successors, (412), 4 states have internal predecessors, (412), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:36:26,958 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 10:36:26,958 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 101 of 139 [2021-03-26 10:36:26,958 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 10:36:26,997 INFO L129 PetriNetUnfolder]: 40/101 cut-off events. [2021-03-26 10:36:26,998 INFO L130 PetriNetUnfolder]: For 341/430 co-relation queries the response was YES. [2021-03-26 10:36:26,998 INFO L84 FinitePrefix]: Finished finitePrefix Result has 428 conditions, 101 events. 40/101 cut-off events. For 341/430 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 355 event pairs, 0 based on Foata normal form. 15/112 useless extension candidates. Maximal degree in co-relation 406. Up to 37 conditions per place. [2021-03-26 10:36:26,999 INFO L132 encePairwiseOnDemand]: 131/139 looper letters, 4 selfloop transitions, 8 changer transitions 0/33 dead transitions. [2021-03-26 10:36:26,999 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 56 places, 33 transitions, 286 flow [2021-03-26 10:36:26,999 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-26 10:36:26,999 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-03-26 10:36:27,000 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 517 transitions. [2021-03-26 10:36:27,001 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7438848920863309 [2021-03-26 10:36:27,001 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 517 transitions. [2021-03-26 10:36:27,001 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 517 transitions. [2021-03-26 10:36:27,001 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 10:36:27,002 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 517 transitions. [2021-03-26 10:36:27,003 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 103.4) internal successors, (517), 5 states have internal predecessors, (517), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:36:27,004 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 139.0) internal successors, (834), 6 states have internal predecessors, (834), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:36:27,004 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 139.0) internal successors, (834), 6 states have internal predecessors, (834), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:36:27,005 INFO L185 Difference]: Start difference. First operand has 52 places, 32 transitions, 254 flow. Second operand 5 states and 517 transitions. [2021-03-26 10:36:27,005 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 56 places, 33 transitions, 286 flow [2021-03-26 10:36:27,007 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 45 places, 33 transitions, 208 flow, removed 15 selfloop flow, removed 11 redundant places. [2021-03-26 10:36:27,007 INFO L241 Difference]: Finished difference. Result has 46 places, 33 transitions, 211 flow [2021-03-26 10:36:27,008 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=139, PETRI_DIFFERENCE_MINUEND_FLOW=176, PETRI_DIFFERENCE_MINUEND_PLACES=41, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=32, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=24, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=211, PETRI_PLACES=46, PETRI_TRANSITIONS=33} [2021-03-26 10:36:27,008 INFO L343 CegarLoopForPetriNet]: 38 programPoint places, 8 predicate places. [2021-03-26 10:36:27,008 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 10:36:27,008 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 46 places, 33 transitions, 211 flow [2021-03-26 10:36:27,008 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 46 places, 33 transitions, 211 flow [2021-03-26 10:36:27,009 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 46 places, 33 transitions, 211 flow [2021-03-26 10:36:27,016 INFO L129 PetriNetUnfolder]: 40/101 cut-off events. [2021-03-26 10:36:27,016 INFO L130 PetriNetUnfolder]: For 160/189 co-relation queries the response was YES. [2021-03-26 10:36:27,017 INFO L84 FinitePrefix]: Finished finitePrefix Result has 342 conditions, 101 events. 40/101 cut-off events. For 160/189 co-relation queries the response was YES. Maximal size of possible extension queue 20. Compared 369 event pairs, 0 based on Foata normal form. 8/104 useless extension candidates. Maximal degree in co-relation 327. Up to 29 conditions per place. [2021-03-26 10:36:27,017 INFO L142 LiptonReduction]: Number of co-enabled transitions 114 [2021-03-26 10:36:27,019 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-26 10:36:27,019 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 10:36:27,019 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 11 [2021-03-26 10:36:27,021 INFO L480 AbstractCegarLoop]: Abstraction has has 46 places, 33 transitions, 211 flow [2021-03-26 10:36:27,021 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 103.0) internal successors, (412), 4 states have internal predecessors, (412), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:36:27,021 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 10:36:27,021 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 10:36:27,022 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-03-26 10:36:27,022 INFO L428 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-26 10:36:27,022 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 10:36:27,022 INFO L82 PathProgramCache]: Analyzing trace with hash -1037200681, now seen corresponding path program 1 times [2021-03-26 10:36:27,022 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 10:36:27,022 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [450365633] [2021-03-26 10:36:27,022 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 10:36:27,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 10:36:27,059 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:36:27,059 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 10:36:27,060 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:36:27,060 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 10:36:27,062 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:36:27,063 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 10:36:27,074 INFO L142 QuantifierPusher]: treesize reduction 3, result has 85.0 percent of original size [2021-03-26 10:36:27,077 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-26 10:36:27,087 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 10:36:27,088 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [450365633] [2021-03-26 10:36:27,088 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 10:36:27,088 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-03-26 10:36:27,088 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [681904456] [2021-03-26 10:36:27,088 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-03-26 10:36:27,088 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 10:36:27,089 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-03-26 10:36:27,089 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-03-26 10:36:27,090 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 106 out of 139 [2021-03-26 10:36:27,090 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 46 places, 33 transitions, 211 flow. Second operand has 5 states, 5 states have (on average 107.2) internal successors, (536), 5 states have internal predecessors, (536), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:36:27,090 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 10:36:27,090 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 106 of 139 [2021-03-26 10:36:27,090 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 10:36:27,120 INFO L129 PetriNetUnfolder]: 49/120 cut-off events. [2021-03-26 10:36:27,120 INFO L130 PetriNetUnfolder]: For 216/272 co-relation queries the response was YES. [2021-03-26 10:36:27,121 INFO L84 FinitePrefix]: Finished finitePrefix Result has 416 conditions, 120 events. 49/120 cut-off events. For 216/272 co-relation queries the response was YES. Maximal size of possible extension queue 22. Compared 460 event pairs, 0 based on Foata normal form. 13/128 useless extension candidates. Maximal degree in co-relation 399. Up to 37 conditions per place. [2021-03-26 10:36:27,121 INFO L132 encePairwiseOnDemand]: 133/139 looper letters, 0 selfloop transitions, 0 changer transitions 33/33 dead transitions. [2021-03-26 10:36:27,121 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 50 places, 33 transitions, 224 flow [2021-03-26 10:36:27,122 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-03-26 10:36:27,122 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-03-26 10:36:27,123 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 646 transitions. [2021-03-26 10:36:27,123 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7745803357314148 [2021-03-26 10:36:27,123 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 646 transitions. [2021-03-26 10:36:27,123 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 646 transitions. [2021-03-26 10:36:27,124 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 10:36:27,124 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 646 transitions. [2021-03-26 10:36:27,125 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 107.66666666666667) internal successors, (646), 6 states have internal predecessors, (646), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:36:27,127 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 139.0) internal successors, (973), 7 states have internal predecessors, (973), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:36:27,127 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 139.0) internal successors, (973), 7 states have internal predecessors, (973), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:36:27,127 INFO L185 Difference]: Start difference. First operand has 46 places, 33 transitions, 211 flow. Second operand 6 states and 646 transitions. [2021-03-26 10:36:27,127 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 50 places, 33 transitions, 224 flow [2021-03-26 10:36:27,129 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 43 places, 33 transitions, 176 flow, removed 5 selfloop flow, removed 7 redundant places. [2021-03-26 10:36:27,129 INFO L241 Difference]: Finished difference. Result has 43 places, 0 transitions, 0 flow [2021-03-26 10:36:27,129 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=139, PETRI_DIFFERENCE_MINUEND_FLOW=149, PETRI_DIFFERENCE_MINUEND_PLACES=38, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=32, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=32, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=0, PETRI_PLACES=43, PETRI_TRANSITIONS=0} [2021-03-26 10:36:27,129 INFO L343 CegarLoopForPetriNet]: 38 programPoint places, 5 predicate places. [2021-03-26 10:36:27,130 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 10:36:27,130 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 43 places, 0 transitions, 0 flow [2021-03-26 10:36:27,130 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 43 places, 0 transitions, 0 flow [2021-03-26 10:36:27,130 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 0 places, 0 transitions, 0 flow [2021-03-26 10:36:27,130 INFO L129 PetriNetUnfolder]: 0/0 cut-off events. [2021-03-26 10:36:27,130 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 10:36:27,130 INFO L84 FinitePrefix]: Finished finitePrefix Result has 0 conditions, 0 events. 0/0 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 0. Compared 0 event pairs, 0 based on Foata normal form. 0/0 useless extension candidates. Maximal degree in co-relation 0. Up to 0 conditions per place. [2021-03-26 10:36:27,130 INFO L142 LiptonReduction]: Number of co-enabled transitions 0 [2021-03-26 10:36:27,131 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-26 10:36:27,131 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 10:36:27,131 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 1 [2021-03-26 10:36:27,131 INFO L480 AbstractCegarLoop]: Abstraction has has 0 places, 0 transitions, 0 flow [2021-03-26 10:36:27,132 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 107.2) internal successors, (536), 5 states have internal predecessors, (536), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:36:27,132 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-03-26 10:36:27,135 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.03 10:36:27 BasicIcfg [2021-03-26 10:36:27,135 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-03-26 10:36:27,136 INFO L168 Benchmark]: Toolchain (without parser) took 6620.11 ms. Allocated memory was 255.9 MB in the beginning and 402.7 MB in the end (delta: 146.8 MB). Free memory was 232.5 MB in the beginning and 256.1 MB in the end (delta: -23.6 MB). Peak memory consumption was 121.7 MB. Max. memory is 16.0 GB. [2021-03-26 10:36:27,136 INFO L168 Benchmark]: CDTParser took 0.57 ms. Allocated memory is still 255.9 MB. Free memory is still 237.6 MB. There was no memory consumed. Max. memory is 16.0 GB. [2021-03-26 10:36:27,136 INFO L168 Benchmark]: CACSL2BoogieTranslator took 400.55 ms. Allocated memory was 255.9 MB in the beginning and 335.5 MB in the end (delta: 79.7 MB). Free memory was 232.5 MB in the beginning and 297.1 MB in the end (delta: -64.6 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.0 GB. [2021-03-26 10:36:27,136 INFO L168 Benchmark]: Boogie Procedure Inliner took 32.94 ms. Allocated memory is still 335.5 MB. Free memory was 297.1 MB in the beginning and 295.2 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-03-26 10:36:27,137 INFO L168 Benchmark]: Boogie Preprocessor took 19.61 ms. Allocated memory is still 335.5 MB. Free memory was 295.2 MB in the beginning and 293.8 MB in the end (delta: 1.4 MB). There was no memory consumed. Max. memory is 16.0 GB. [2021-03-26 10:36:27,137 INFO L168 Benchmark]: RCFGBuilder took 455.44 ms. Allocated memory is still 335.5 MB. Free memory was 293.8 MB in the beginning and 269.3 MB in the end (delta: 24.5 MB). Peak memory consumption was 25.2 MB. Max. memory is 16.0 GB. [2021-03-26 10:36:27,138 INFO L168 Benchmark]: TraceAbstraction took 5706.84 ms. Allocated memory was 335.5 MB in the beginning and 402.7 MB in the end (delta: 67.1 MB). Free memory was 269.3 MB in the beginning and 256.1 MB in the end (delta: 13.2 MB). Peak memory consumption was 81.7 MB. Max. memory is 16.0 GB. [2021-03-26 10:36:27,143 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.57 ms. Allocated memory is still 255.9 MB. Free memory is still 237.6 MB. There was no memory consumed. Max. memory is 16.0 GB. * CACSL2BoogieTranslator took 400.55 ms. Allocated memory was 255.9 MB in the beginning and 335.5 MB in the end (delta: 79.7 MB). Free memory was 232.5 MB in the beginning and 297.1 MB in the end (delta: -64.6 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 32.94 ms. Allocated memory is still 335.5 MB. Free memory was 297.1 MB in the beginning and 295.2 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * Boogie Preprocessor took 19.61 ms. Allocated memory is still 335.5 MB. Free memory was 295.2 MB in the beginning and 293.8 MB in the end (delta: 1.4 MB). There was no memory consumed. Max. memory is 16.0 GB. * RCFGBuilder took 455.44 ms. Allocated memory is still 335.5 MB. Free memory was 293.8 MB in the beginning and 269.3 MB in the end (delta: 24.5 MB). Peak memory consumption was 25.2 MB. Max. memory is 16.0 GB. * TraceAbstraction took 5706.84 ms. Allocated memory was 335.5 MB in the beginning and 402.7 MB in the end (delta: 67.1 MB). Free memory was 269.3 MB in the beginning and 256.1 MB in the end (delta: 13.2 MB). Peak memory consumption was 81.7 MB. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 1832.5ms, 80 PlacesBefore, 38 PlacesAfterwards, 68 TransitionsBefore, 25 TransitionsAfterwards, 1250 CoEnabledTransitionPairs, 4 FixpointIterations, 14 TrivialSequentialCompositions, 28 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 1 ChoiceCompositions, 43 TotalNumberOfCompositions, 1269 MoverChecksTotal, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 878, positive: 850, positive conditional: 850, positive unconditional: 0, negative: 28, negative conditional: 28, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 878, positive: 850, positive conditional: 0, positive unconditional: 850, negative: 28, negative conditional: 0, negative unconditional: 28, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 878, positive: 850, positive conditional: 0, positive unconditional: 850, negative: 28, negative conditional: 0, negative unconditional: 28, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 759, positive: 735, positive conditional: 0, positive unconditional: 735, negative: 24, negative conditional: 0, negative unconditional: 24, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 759, positive: 718, positive conditional: 0, positive unconditional: 718, negative: 41, negative conditional: 0, negative unconditional: 41, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 41, positive: 17, positive conditional: 0, positive unconditional: 17, negative: 24, negative conditional: 0, negative unconditional: 24, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 215, positive: 84, positive conditional: 0, positive unconditional: 84, negative: 131, negative conditional: 0, negative unconditional: 131, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 878, positive: 115, positive conditional: 0, positive unconditional: 115, negative: 4, negative conditional: 0, negative unconditional: 4, unknown: 759, unknown conditional: 0, unknown unconditional: 759] , Statistics on independence cache: Total cache size (in pairs): 759, Positive cache size: 735, Positive conditional cache size: 0, Positive unconditional cache size: 735, Negative cache size: 24, Negative conditional cache size: 0, Negative unconditional cache size: 24, Eliminated conditions: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 525.1ms, 40 PlacesBefore, 36 PlacesAfterwards, 28 TransitionsBefore, 24 TransitionsAfterwards, 226 CoEnabledTransitionPairs, 3 FixpointIterations, 3 TrivialSequentialCompositions, 1 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 4 TotalNumberOfCompositions, 278 MoverChecksTotal, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 120, positive: 101, positive conditional: 101, positive unconditional: 0, negative: 19, negative conditional: 19, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 120, positive: 101, positive conditional: 0, positive unconditional: 101, negative: 19, negative conditional: 0, negative unconditional: 19, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 120, positive: 101, positive conditional: 0, positive unconditional: 101, negative: 19, negative conditional: 0, negative unconditional: 19, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 42, positive: 36, positive conditional: 0, positive unconditional: 36, negative: 6, negative conditional: 0, negative unconditional: 6, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 42, positive: 33, positive conditional: 0, positive unconditional: 33, negative: 9, negative conditional: 0, negative unconditional: 9, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 9, positive: 3, positive conditional: 0, positive unconditional: 3, negative: 6, negative conditional: 0, negative unconditional: 6, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 44, positive: 22, positive conditional: 0, positive unconditional: 22, negative: 22, negative conditional: 0, negative unconditional: 22, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 120, positive: 65, positive conditional: 0, positive unconditional: 65, negative: 13, negative conditional: 0, negative unconditional: 13, unknown: 42, unknown conditional: 0, unknown unconditional: 42] , Statistics on independence cache: Total cache size (in pairs): 801, Positive cache size: 771, Positive conditional cache size: 0, Positive unconditional cache size: 771, Negative cache size: 30, Negative conditional cache size: 0, Negative unconditional cache size: 30, Eliminated conditions: 31 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 523.3ms, 40 PlacesBefore, 39 PlacesAfterwards, 26 TransitionsBefore, 25 TransitionsAfterwards, 216 CoEnabledTransitionPairs, 2 FixpointIterations, 1 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 1 TotalNumberOfCompositions, 234 MoverChecksTotal, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 116, positive: 100, positive conditional: 100, positive unconditional: 0, negative: 16, negative conditional: 16, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 116, positive: 100, positive conditional: 12, positive unconditional: 88, negative: 16, negative conditional: 0, negative unconditional: 16, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 116, positive: 100, positive conditional: 12, positive unconditional: 88, negative: 16, negative conditional: 0, negative unconditional: 16, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 11, positive: 8, positive conditional: 0, positive unconditional: 8, negative: 3, negative conditional: 0, negative unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 11, positive: 7, positive conditional: 0, positive unconditional: 7, negative: 4, negative conditional: 0, negative unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 4, positive: 1, positive conditional: 0, positive unconditional: 1, negative: 3, negative conditional: 0, negative unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 15, positive: 4, positive conditional: 0, positive unconditional: 4, negative: 10, negative conditional: 0, negative unconditional: 10, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 116, positive: 92, positive conditional: 12, positive unconditional: 80, negative: 13, negative conditional: 0, negative unconditional: 13, unknown: 11, unknown conditional: 0, unknown unconditional: 11] , Statistics on independence cache: Total cache size (in pairs): 812, Positive cache size: 779, Positive conditional cache size: 0, Positive unconditional cache size: 779, Negative cache size: 33, Negative conditional cache size: 0, Negative unconditional cache size: 33, Eliminated conditions: 34 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 58.3ms, 45 PlacesBefore, 45 PlacesAfterwards, 42 TransitionsBefore, 42 TransitionsAfterwards, 350 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 226 MoverChecksTotal, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 144, positive: 134, positive conditional: 134, positive unconditional: 0, negative: 10, negative conditional: 10, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 144, positive: 134, positive conditional: 14, positive unconditional: 120, negative: 10, negative conditional: 0, negative unconditional: 10, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 144, positive: 134, positive conditional: 14, positive unconditional: 120, negative: 10, negative conditional: 0, negative unconditional: 10, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 16, positive: 15, positive conditional: 0, positive unconditional: 15, negative: 1, negative conditional: 0, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 16, positive: 10, positive conditional: 0, positive unconditional: 10, negative: 6, negative conditional: 0, negative unconditional: 6, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 6, positive: 5, positive conditional: 0, positive unconditional: 5, negative: 1, negative conditional: 0, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 22, positive: 18, positive conditional: 0, positive unconditional: 18, negative: 4, negative conditional: 0, negative unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 144, positive: 119, positive conditional: 14, positive unconditional: 105, negative: 9, negative conditional: 0, negative unconditional: 9, unknown: 16, unknown conditional: 0, unknown unconditional: 16] , Statistics on independence cache: Total cache size (in pairs): 828, Positive cache size: 794, Positive conditional cache size: 0, Positive unconditional cache size: 794, Negative cache size: 34, Negative conditional cache size: 0, Negative unconditional cache size: 34, Eliminated conditions: 43 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 15.2ms, 51 PlacesBefore, 51 PlacesAfterwards, 31 TransitionsBefore, 31 TransitionsAfterwards, 234 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 127 MoverChecksTotal, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 79, positive: 71, positive conditional: 71, positive unconditional: 0, negative: 8, negative conditional: 8, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 79, positive: 71, positive conditional: 2, positive unconditional: 69, negative: 8, negative conditional: 0, negative unconditional: 8, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 79, positive: 71, positive conditional: 2, positive unconditional: 69, negative: 8, negative conditional: 0, negative unconditional: 8, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 2, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 2, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 79, positive: 69, positive conditional: 2, positive unconditional: 67, negative: 8, negative conditional: 0, negative unconditional: 8, unknown: 2, unknown conditional: 0, unknown unconditional: 2] , Statistics on independence cache: Total cache size (in pairs): 830, Positive cache size: 796, Positive conditional cache size: 0, Positive unconditional cache size: 796, Negative cache size: 34, Negative conditional cache size: 0, Negative unconditional cache size: 34, Eliminated conditions: 12 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 15.5ms, 47 PlacesBefore, 47 PlacesAfterwards, 34 TransitionsBefore, 34 TransitionsAfterwards, 250 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 164 MoverChecksTotal, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 124, positive: 113, positive conditional: 113, positive unconditional: 0, negative: 11, negative conditional: 11, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 124, positive: 113, positive conditional: 11, positive unconditional: 102, negative: 11, negative conditional: 0, negative unconditional: 11, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 124, positive: 113, positive conditional: 11, positive unconditional: 102, negative: 11, negative conditional: 0, negative unconditional: 11, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 124, positive: 113, positive conditional: 11, positive unconditional: 102, negative: 11, negative conditional: 0, negative unconditional: 11, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 830, Positive cache size: 796, Positive conditional cache size: 0, Positive unconditional cache size: 796, Negative cache size: 34, Negative conditional cache size: 0, Negative unconditional cache size: 34, Eliminated conditions: 41 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 10.4ms, 50 PlacesBefore, 50 PlacesAfterwards, 30 TransitionsBefore, 30 TransitionsAfterwards, 166 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 137 MoverChecksTotal, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 88, positive: 78, positive conditional: 78, positive unconditional: 0, negative: 10, negative conditional: 10, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 88, positive: 78, positive conditional: 0, positive unconditional: 78, negative: 10, negative conditional: 0, negative unconditional: 10, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 88, positive: 78, positive conditional: 0, positive unconditional: 78, negative: 10, negative conditional: 0, negative unconditional: 10, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 88, positive: 78, positive conditional: 0, positive unconditional: 78, negative: 10, negative conditional: 0, negative unconditional: 10, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 830, Positive cache size: 796, Positive conditional cache size: 0, Positive unconditional cache size: 796, Negative cache size: 34, Negative conditional cache size: 0, Negative unconditional cache size: 34, Eliminated conditions: 37 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 36.9ms, 47 PlacesBefore, 47 PlacesAfterwards, 34 TransitionsBefore, 34 TransitionsAfterwards, 208 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 830, Positive cache size: 796, Positive conditional cache size: 0, Positive unconditional cache size: 796, Negative cache size: 34, Negative conditional cache size: 0, Negative unconditional cache size: 34, Eliminated conditions: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 36.6ms, 50 PlacesBefore, 50 PlacesAfterwards, 34 TransitionsBefore, 34 TransitionsAfterwards, 208 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 830, Positive cache size: 796, Positive conditional cache size: 0, Positive unconditional cache size: 796, Negative cache size: 34, Negative conditional cache size: 0, Negative unconditional cache size: 34, Eliminated conditions: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 29.3ms, 53 PlacesBefore, 53 PlacesAfterwards, 38 TransitionsBefore, 38 TransitionsAfterwards, 254 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 830, Positive cache size: 796, Positive conditional cache size: 0, Positive unconditional cache size: 796, Negative cache size: 34, Negative conditional cache size: 0, Negative unconditional cache size: 34, Eliminated conditions: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 44.2ms, 55 PlacesBefore, 55 PlacesAfterwards, 42 TransitionsBefore, 42 TransitionsAfterwards, 248 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 830, Positive cache size: 796, Positive conditional cache size: 0, Positive unconditional cache size: 796, Negative cache size: 34, Negative conditional cache size: 0, Negative unconditional cache size: 34, Eliminated conditions: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 209.8ms, 56 PlacesBefore, 52 PlacesAfterwards, 34 TransitionsBefore, 32 TransitionsAfterwards, 138 CoEnabledTransitionPairs, 3 FixpointIterations, 1 TrivialSequentialCompositions, 3 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 1 ConcurrentYvCompositions, 0 ChoiceCompositions, 5 TotalNumberOfCompositions, 32 MoverChecksTotal, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 32, positive: 32, positive conditional: 32, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 32, positive: 32, positive conditional: 28, positive unconditional: 4, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 32, positive: 32, positive conditional: 28, positive unconditional: 4, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 5, positive: 5, positive conditional: 4, positive unconditional: 1, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 5, positive: 5, positive conditional: 0, positive unconditional: 5, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 32, positive: 27, positive conditional: 24, positive unconditional: 3, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 5, unknown conditional: 4, unknown unconditional: 1] , Statistics on independence cache: Total cache size (in pairs): 835, Positive cache size: 801, Positive conditional cache size: 4, Positive unconditional cache size: 797, Negative cache size: 34, Negative conditional cache size: 0, Negative unconditional cache size: 34, Eliminated conditions: 2 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 11.1ms, 46 PlacesBefore, 46 PlacesAfterwards, 33 TransitionsBefore, 33 TransitionsAfterwards, 114 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 835, Positive cache size: 801, Positive conditional cache size: 4, Positive unconditional cache size: 797, Negative cache size: 34, Negative conditional cache size: 0, Negative unconditional cache size: 34, Eliminated conditions: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 0.7ms, 43 PlacesBefore, 0 PlacesAfterwards, 0 TransitionsBefore, 0 TransitionsAfterwards, 0 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 835, Positive cache size: 801, Positive conditional cache size: 4, Positive unconditional cache size: 797, Negative cache size: 34, Negative conditional cache size: 0, Negative unconditional cache size: 34, Eliminated conditions: 0 - PositiveResult [Line: 18]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 85 locations, 1 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 4.3ms, RemoveRedundantFlowTime: 0.0ms, RemoveRedundantFlowUnfoldingTime: 0.0ms, BackfoldingTime: 0.0ms, BackfoldingUnfoldingTime: 0.0ms, FlowIncreaseByBackfolding: 0, BasicCegarLoop: VerificationResult: SAFE, OverallTime: 5579.0ms, OverallIterations: 13, TraceHistogramMax: 1, EmptinessCheckTime: 0.0ms, AutomataDifference: 853.7ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 1959.6ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 76 SDtfs, 47 SDslu, 35 SDs, 0 SdLazy, 174 SolverSat, 57 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 162.8ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 45 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 172.7ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=330occurred in iteration=3, InterpolantAutomatonStates: 59, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 38.1ms SsaConstructionTime, 287.2ms SatisfiabilityAnalysisTime, 680.1ms InterpolantComputationTime, 198 NumberOfCodeBlocks, 198 NumberOfCodeBlocksAsserted, 13 NumberOfCheckSat, 185 ConstructedInterpolants, 0 QuantifiedInterpolants, 1123 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 13 InterpolantComputations, 13 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! Received shutdown request...