/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-SemanticLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread-ext/45_monabsex1_vs.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-7cd14b8b9f04096d8ddfd3d9cd8a4ac590fe5404-7cd14b8 [2021-03-11 19:46:45,739 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-03-11 19:46:45,742 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-03-11 19:46:45,771 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-03-11 19:46:45,772 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-03-11 19:46:45,774 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-03-11 19:46:45,777 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-03-11 19:46:45,781 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-03-11 19:46:45,784 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-03-11 19:46:45,970 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-03-11 19:46:45,971 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-03-11 19:46:46,023 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-03-11 19:46:46,023 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-03-11 19:46:46,024 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-03-11 19:46:46,025 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-03-11 19:46:46,025 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-03-11 19:46:46,026 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-03-11 19:46:46,026 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-03-11 19:46:46,027 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-03-11 19:46:46,028 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-03-11 19:46:46,029 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-03-11 19:46:46,032 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-03-11 19:46:46,035 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-03-11 19:46:46,036 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-03-11 19:46:46,038 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-03-11 19:46:46,039 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-03-11 19:46:46,040 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-03-11 19:46:46,040 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-03-11 19:46:46,041 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-03-11 19:46:46,041 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-03-11 19:46:46,041 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-03-11 19:46:46,042 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-03-11 19:46:46,042 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-03-11 19:46:46,042 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-03-11 19:46:46,043 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-03-11 19:46:46,043 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-03-11 19:46:46,052 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-SemanticLbe.epf [2021-03-11 19:46:46,080 INFO L113 SettingsManager]: Loading preferences was successful [2021-03-11 19:46:46,080 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-03-11 19:46:46,083 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-03-11 19:46:46,084 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-03-11 19:46:46,084 INFO L138 SettingsManager]: * Use SBE=true [2021-03-11 19:46:46,084 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-03-11 19:46:46,084 INFO L138 SettingsManager]: * sizeof long=4 [2021-03-11 19:46:46,084 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-03-11 19:46:46,084 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-03-11 19:46:46,084 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-03-11 19:46:46,085 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-03-11 19:46:46,085 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-03-11 19:46:46,085 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-03-11 19:46:46,085 INFO L138 SettingsManager]: * sizeof long double=12 [2021-03-11 19:46:46,086 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-03-11 19:46:46,086 INFO L138 SettingsManager]: * Use constant arrays=true [2021-03-11 19:46:46,086 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-03-11 19:46:46,086 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-03-11 19:46:46,086 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-03-11 19:46:46,086 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-03-11 19:46:46,086 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-03-11 19:46:46,087 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-03-11 19:46:46,087 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-03-11 19:46:46,087 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-03-11 19:46:46,087 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-03-11 19:46:46,087 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-03-11 19:46:46,087 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-03-11 19:46:46,087 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-03-11 19:46:46,087 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-03-11 19:46:46,337 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-03-11 19:46:46,358 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-03-11 19:46:46,360 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-03-11 19:46:46,361 INFO L271 PluginConnector]: Initializing CDTParser... [2021-03-11 19:46:46,361 INFO L275 PluginConnector]: CDTParser initialized [2021-03-11 19:46:46,362 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-ext/45_monabsex1_vs.i [2021-03-11 19:46:46,420 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8fd977b08/1bd49a0cbb9f475b91a5e732e49a3d6c/FLAG984e761ee [2021-03-11 19:46:46,896 INFO L306 CDTParser]: Found 1 translation units. [2021-03-11 19:46:46,896 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-ext/45_monabsex1_vs.i [2021-03-11 19:46:46,908 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8fd977b08/1bd49a0cbb9f475b91a5e732e49a3d6c/FLAG984e761ee [2021-03-11 19:46:47,390 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8fd977b08/1bd49a0cbb9f475b91a5e732e49a3d6c [2021-03-11 19:46:47,393 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-03-11 19:46:47,396 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-03-11 19:46:47,397 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-03-11 19:46:47,397 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-03-11 19:46:47,410 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-03-11 19:46:47,411 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.03 07:46:47" (1/1) ... [2021-03-11 19:46:47,412 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3f0f033e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.03 07:46:47, skipping insertion in model container [2021-03-11 19:46:47,413 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.03 07:46:47" (1/1) ... [2021-03-11 19:46:47,417 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-03-11 19:46:47,448 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-03-11 19:46:47,538 WARN L612 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2021-03-11 19:46:47,633 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-ext/45_monabsex1_vs.i[30633,30646] [2021-03-11 19:46:47,638 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-03-11 19:46:47,644 INFO L203 MainTranslator]: Completed pre-run [2021-03-11 19:46:47,653 WARN L612 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2021-03-11 19:46:47,665 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-ext/45_monabsex1_vs.i[30633,30646] [2021-03-11 19:46:47,667 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-03-11 19:46:47,729 INFO L208 MainTranslator]: Completed translation [2021-03-11 19:46:47,730 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.03 07:46:47 WrapperNode [2021-03-11 19:46:47,730 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-03-11 19:46:47,731 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-03-11 19:46:47,731 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-03-11 19:46:47,731 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-03-11 19:46:47,736 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.03 07:46:47" (1/1) ... [2021-03-11 19:46:47,755 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.03 07:46:47" (1/1) ... [2021-03-11 19:46:47,769 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-03-11 19:46:47,770 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-03-11 19:46:47,770 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-03-11 19:46:47,770 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-03-11 19:46:47,775 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.03 07:46:47" (1/1) ... [2021-03-11 19:46:47,775 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.03 07:46:47" (1/1) ... [2021-03-11 19:46:47,783 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.03 07:46:47" (1/1) ... [2021-03-11 19:46:47,784 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.03 07:46:47" (1/1) ... [2021-03-11 19:46:47,786 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.03 07:46:47" (1/1) ... [2021-03-11 19:46:47,789 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.03 07:46:47" (1/1) ... [2021-03-11 19:46:47,790 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.03 07:46:47" (1/1) ... [2021-03-11 19:46:47,791 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-03-11 19:46:47,792 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-03-11 19:46:47,792 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-03-11 19:46:47,792 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-03-11 19:46:47,793 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.03 07:46:47" (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 [2021-03-11 19:46:47,844 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2021-03-11 19:46:47,844 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2021-03-11 19:46:47,844 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-03-11 19:46:47,845 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-03-11 19:46:47,845 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-03-11 19:46:47,845 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-03-11 19:46:47,847 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-03-11 19:46:47,847 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-03-11 19:46:47,847 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-03-11 19:46:47,847 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-03-11 19:46:47,848 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-03-11 19:46:48,124 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-03-11 19:46:48,125 INFO L299 CfgBuilder]: Removed 5 assume(true) statements. [2021-03-11 19:46:48,126 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.03 07:46:48 BoogieIcfgContainer [2021-03-11 19:46:48,126 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-03-11 19:46:48,127 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-03-11 19:46:48,127 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-03-11 19:46:48,129 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-03-11 19:46:48,129 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.03 07:46:47" (1/3) ... [2021-03-11 19:46:48,130 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@444e10ab and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.03 07:46:48, skipping insertion in model container [2021-03-11 19:46:48,130 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.03 07:46:47" (2/3) ... [2021-03-11 19:46:48,130 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@444e10ab and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.03 07:46:48, skipping insertion in model container [2021-03-11 19:46:48,130 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.03 07:46:48" (3/3) ... [2021-03-11 19:46:48,131 INFO L111 eAbstractionObserver]: Analyzing ICFG 45_monabsex1_vs.i [2021-03-11 19:46:48,135 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-03-11 19:46:48,138 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-03-11 19:46:48,138 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-03-11 19:46:48,160 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:46:48,160 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:46:48,160 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:46:48,160 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:46:48,160 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:46:48,160 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:46:48,161 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:46:48,161 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:46:48,161 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:46:48,161 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:46:48,161 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:46:48,161 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:46:48,161 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:46:48,161 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:46:48,162 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:46:48,162 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:46:48,162 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:46:48,162 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:46:48,162 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:46:48,163 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:46:48,163 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:46:48,163 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:46:48,163 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:46:48,163 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:46:48,164 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:46:48,164 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:46:48,164 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:46:48,165 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:46:48,166 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:46:48,167 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:46:48,167 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:46:48,167 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:46:48,167 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:46:48,167 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:46:48,170 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-03-11 19:46:48,184 INFO L253 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2021-03-11 19:46:48,208 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-03-11 19:46:48,209 INFO L377 AbstractCegarLoop]: Hoare is false [2021-03-11 19:46:48,209 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-03-11 19:46:48,209 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-03-11 19:46:48,209 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-03-11 19:46:48,209 INFO L381 AbstractCegarLoop]: Difference is false [2021-03-11 19:46:48,209 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-03-11 19:46:48,209 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-03-11 19:46:48,218 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 37 places, 35 transitions, 75 flow [2021-03-11 19:46:48,242 INFO L129 PetriNetUnfolder]: 2/43 cut-off events. [2021-03-11 19:46:48,243 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-11 19:46:48,256 INFO L84 FinitePrefix]: Finished finitePrefix Result has 48 conditions, 43 events. 2/43 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 48 event pairs, 0 based on Foata normal form. 0/38 useless extension candidates. Maximal degree in co-relation 22. Up to 4 conditions per place. [2021-03-11 19:46:48,256 INFO L82 GeneralOperation]: Start removeDead. Operand has 37 places, 35 transitions, 75 flow [2021-03-11 19:46:48,259 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 37 places, 35 transitions, 75 flow [2021-03-11 19:46:48,261 INFO L118 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-03-11 19:46:48,273 INFO L133 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 37 places, 35 transitions, 75 flow [2021-03-11 19:46:48,275 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 37 places, 35 transitions, 75 flow [2021-03-11 19:46:48,276 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 37 places, 35 transitions, 75 flow [2021-03-11 19:46:48,283 INFO L129 PetriNetUnfolder]: 2/43 cut-off events. [2021-03-11 19:46:48,283 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-11 19:46:48,287 INFO L84 FinitePrefix]: Finished finitePrefix Result has 48 conditions, 43 events. 2/43 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 39 event pairs, 0 based on Foata normal form. 0/38 useless extension candidates. Maximal degree in co-relation 22. Up to 4 conditions per place. [2021-03-11 19:46:48,288 INFO L116 LiptonReduction]: Number of co-enabled transitions 200 [2021-03-11 19:46:49,335 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 61 [2021-03-11 19:46:49,448 INFO L131 LiptonReduction]: Checked pairs total: 162 [2021-03-11 19:46:49,448 INFO L133 LiptonReduction]: Total number of compositions: 31 [2021-03-11 19:46:49,449 INFO L182 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 1190 [2021-03-11 19:46:49,461 INFO L129 PetriNetUnfolder]: 0/5 cut-off events. [2021-03-11 19:46:49,461 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-11 19:46:49,462 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-11 19:46:49,462 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2021-03-11 19:46:49,463 INFO L428 AbstractCegarLoop]: === Iteration 1 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-11 19:46:49,469 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 19:46:49,469 INFO L82 PathProgramCache]: Analyzing trace with hash 4970699, now seen corresponding path program 1 times [2021-03-11 19:46:49,475 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 19:46:49,476 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2013293192] [2021-03-11 19:46:49,476 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 19:46:49,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 19:46:49,595 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 19:46:49,596 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 19:46:49,598 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 19:46:49,598 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2013293192] [2021-03-11 19:46:49,599 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 19:46:49,599 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-03-11 19:46:49,599 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [571854401] [2021-03-11 19:46:49,605 INFO L460 AbstractCegarLoop]: Interpolant automaton has 2 states [2021-03-11 19:46:49,605 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 19:46:49,613 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-03-11 19:46:49,615 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-03-11 19:46:49,616 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 56 out of 66 [2021-03-11 19:46:49,618 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 11 places, 8 transitions, 21 flow. Second operand has 2 states, 2 states have (on average 56.5) internal successors, (113), 2 states have internal predecessors, (113), 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) [2021-03-11 19:46:49,619 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-11 19:46:49,619 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 56 of 66 [2021-03-11 19:46:49,620 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-11 19:46:49,626 INFO L129 PetriNetUnfolder]: 0/7 cut-off events. [2021-03-11 19:46:49,626 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-11 19:46:49,626 INFO L84 FinitePrefix]: Finished finitePrefix Result has 13 conditions, 7 events. 0/7 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 1 event pairs, 0 based on Foata normal form. 3/10 useless extension candidates. Maximal degree in co-relation 0. Up to 2 conditions per place. [2021-03-11 19:46:49,627 INFO L132 encePairwiseOnDemand]: 64/66 looper letters, 0 selfloop transitions, 0 changer transitions 0/6 dead transitions. [2021-03-11 19:46:49,627 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 10 places, 6 transitions, 17 flow [2021-03-11 19:46:49,627 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-03-11 19:46:49,630 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2021-03-11 19:46:49,635 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 114 transitions. [2021-03-11 19:46:49,637 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.8636363636363636 [2021-03-11 19:46:49,638 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 114 transitions. [2021-03-11 19:46:49,638 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 114 transitions. [2021-03-11 19:46:49,639 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-11 19:46:49,642 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 114 transitions. [2021-03-11 19:46:49,644 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 57.0) internal successors, (114), 2 states have internal predecessors, (114), 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) [2021-03-11 19:46:49,652 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 66.0) internal successors, (198), 3 states have internal predecessors, (198), 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) [2021-03-11 19:46:49,653 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 66.0) internal successors, (198), 3 states have internal predecessors, (198), 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) [2021-03-11 19:46:49,655 INFO L185 Difference]: Start difference. First operand has 11 places, 8 transitions, 21 flow. Second operand 2 states and 114 transitions. [2021-03-11 19:46:49,656 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 10 places, 6 transitions, 17 flow [2021-03-11 19:46:49,663 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 10 places, 6 transitions, 17 flow, removed 0 selfloop flow, removed 0 redundant places. [2021-03-11 19:46:49,664 INFO L241 Difference]: Finished difference. Result has 10 places, 6 transitions, 17 flow [2021-03-11 19:46:49,665 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=66, PETRI_DIFFERENCE_MINUEND_FLOW=17, PETRI_DIFFERENCE_MINUEND_PLACES=9, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=6, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=6, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=17, PETRI_PLACES=10, PETRI_TRANSITIONS=6} [2021-03-11 19:46:49,667 INFO L335 CegarLoopForPetriNet]: 11 programPoint places, -1 predicate places. [2021-03-11 19:46:49,667 INFO L480 AbstractCegarLoop]: Abstraction has has 10 places, 6 transitions, 17 flow [2021-03-11 19:46:49,667 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 2 states, 2 states have (on average 56.5) internal successors, (113), 2 states have internal predecessors, (113), 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) [2021-03-11 19:46:49,667 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-11 19:46:49,667 INFO L255 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1] [2021-03-11 19:46:49,667 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-03-11 19:46:49,668 INFO L428 AbstractCegarLoop]: === Iteration 2 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-11 19:46:49,668 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 19:46:49,668 INFO L82 PathProgramCache]: Analyzing trace with hash 481814714, now seen corresponding path program 1 times [2021-03-11 19:46:49,668 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 19:46:49,668 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2021269558] [2021-03-11 19:46:49,669 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 19:46:49,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-03-11 19:46:49,697 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-03-11 19:46:49,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-03-11 19:46:49,706 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-03-11 19:46:49,722 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-03-11 19:46:49,722 INFO L620 BasicCegarLoop]: Counterexample might be feasible [2021-03-11 19:46:49,722 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-03-11 19:46:49,723 WARN L342 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2021-03-11 19:46:49,723 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2021-03-11 19:46:49,728 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:46:49,728 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:46:49,729 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:46:49,729 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:46:49,729 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:46:49,729 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:46:49,729 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:46:49,729 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:46:49,729 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:46:49,729 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:46:49,729 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:46:49,729 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:46:49,729 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:46:49,730 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:46:49,730 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:46:49,730 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:46:49,730 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:46:49,730 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:46:49,730 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:46:49,730 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:46:49,730 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:46:49,730 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:46:49,730 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:46:49,731 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:46:49,731 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:46:49,731 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:46:49,731 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:46:49,731 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:46:49,731 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:46:49,731 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:46:49,731 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:46:49,731 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:46:49,732 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:46:49,732 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:46:49,732 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:46:49,732 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:46:49,732 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:46:49,732 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:46:49,732 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:46:49,732 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:46:49,732 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:46:49,732 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:46:49,732 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:46:49,733 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:46:49,733 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:46:49,733 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:46:49,733 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:46:49,733 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:46:49,733 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:46:49,733 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:46:49,733 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:46:49,733 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:46:49,734 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:46:49,734 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:46:49,734 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:46:49,734 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:46:49,734 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:46:49,734 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:46:49,734 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:46:49,735 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:46:49,735 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:46:49,735 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:46:49,736 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:46:49,736 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:46:49,736 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:46:49,736 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:46:49,736 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:46:49,737 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:46:49,737 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-03-11 19:46:49,738 INFO L253 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2021-03-11 19:46:49,739 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-03-11 19:46:49,739 INFO L377 AbstractCegarLoop]: Hoare is false [2021-03-11 19:46:49,739 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-03-11 19:46:49,739 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-03-11 19:46:49,739 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-03-11 19:46:49,739 INFO L381 AbstractCegarLoop]: Difference is false [2021-03-11 19:46:49,739 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-03-11 19:46:49,739 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-03-11 19:46:49,740 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 50 places, 46 transitions, 104 flow [2021-03-11 19:46:49,747 INFO L129 PetriNetUnfolder]: 3/63 cut-off events. [2021-03-11 19:46:49,748 INFO L130 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2021-03-11 19:46:49,748 INFO L84 FinitePrefix]: Finished finitePrefix Result has 73 conditions, 63 events. 3/63 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 110 event pairs, 0 based on Foata normal form. 0/55 useless extension candidates. Maximal degree in co-relation 44. Up to 6 conditions per place. [2021-03-11 19:46:49,748 INFO L82 GeneralOperation]: Start removeDead. Operand has 50 places, 46 transitions, 104 flow [2021-03-11 19:46:49,749 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 50 places, 46 transitions, 104 flow [2021-03-11 19:46:49,749 INFO L118 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-03-11 19:46:49,749 INFO L133 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 50 places, 46 transitions, 104 flow [2021-03-11 19:46:49,749 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 50 places, 46 transitions, 104 flow [2021-03-11 19:46:49,750 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 50 places, 46 transitions, 104 flow [2021-03-11 19:46:49,756 INFO L129 PetriNetUnfolder]: 3/63 cut-off events. [2021-03-11 19:46:49,756 INFO L130 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2021-03-11 19:46:49,756 INFO L84 FinitePrefix]: Finished finitePrefix Result has 73 conditions, 63 events. 3/63 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 112 event pairs, 0 based on Foata normal form. 0/55 useless extension candidates. Maximal degree in co-relation 44. Up to 6 conditions per place. [2021-03-11 19:46:49,757 INFO L116 LiptonReduction]: Number of co-enabled transitions 620 [2021-03-11 19:46:50,953 INFO L131 LiptonReduction]: Checked pairs total: 959 [2021-03-11 19:46:50,953 INFO L133 LiptonReduction]: Total number of compositions: 34 [2021-03-11 19:46:50,954 INFO L182 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 1205 [2021-03-11 19:46:50,955 INFO L129 PetriNetUnfolder]: 0/6 cut-off events. [2021-03-11 19:46:50,955 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-11 19:46:50,956 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-11 19:46:50,956 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2021-03-11 19:46:50,956 INFO L428 AbstractCegarLoop]: === Iteration 1 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2021-03-11 19:46:50,956 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 19:46:50,956 INFO L82 PathProgramCache]: Analyzing trace with hash 241704332, now seen corresponding path program 1 times [2021-03-11 19:46:50,956 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 19:46:50,956 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [393793235] [2021-03-11 19:46:50,956 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 19:46:50,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 19:46:50,978 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 19:46:50,978 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 19:46:50,979 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 19:46:50,979 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-11 19:46:50,983 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 19:46:50,984 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [393793235] [2021-03-11 19:46:50,984 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 19:46:50,984 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-03-11 19:46:50,984 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [690307733] [2021-03-11 19:46:50,984 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-03-11 19:46:50,984 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 19:46:50,985 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-03-11 19:46:50,985 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-11 19:46:50,985 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 44 out of 80 [2021-03-11 19:46:50,986 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 18 places, 13 transitions, 38 flow. Second operand has 3 states, 3 states have (on average 45.333333333333336) internal successors, (136), 3 states have internal predecessors, (136), 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) [2021-03-11 19:46:50,986 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-11 19:46:50,986 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 44 of 80 [2021-03-11 19:46:50,986 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-11 19:46:51,005 INFO L129 PetriNetUnfolder]: 9/38 cut-off events. [2021-03-11 19:46:51,005 INFO L130 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2021-03-11 19:46:51,005 INFO L84 FinitePrefix]: Finished finitePrefix Result has 80 conditions, 38 events. 9/38 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 109 event pairs, 2 based on Foata normal form. 24/52 useless extension candidates. Maximal degree in co-relation 60. Up to 17 conditions per place. [2021-03-11 19:46:51,006 INFO L132 encePairwiseOnDemand]: 75/80 looper letters, 9 selfloop transitions, 3 changer transitions 0/16 dead transitions. [2021-03-11 19:46:51,006 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 19 places, 16 transitions, 68 flow [2021-03-11 19:46:51,008 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-11 19:46:51,008 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-03-11 19:46:51,009 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 147 transitions. [2021-03-11 19:46:51,009 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.6125 [2021-03-11 19:46:51,010 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 147 transitions. [2021-03-11 19:46:51,010 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 147 transitions. [2021-03-11 19:46:51,010 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-11 19:46:51,010 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 147 transitions. [2021-03-11 19:46:51,011 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 49.0) internal successors, (147), 3 states have internal predecessors, (147), 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) [2021-03-11 19:46:51,012 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 80.0) internal successors, (320), 4 states have internal predecessors, (320), 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) [2021-03-11 19:46:51,012 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 80.0) internal successors, (320), 4 states have internal predecessors, (320), 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) [2021-03-11 19:46:51,012 INFO L185 Difference]: Start difference. First operand has 18 places, 13 transitions, 38 flow. Second operand 3 states and 147 transitions. [2021-03-11 19:46:51,012 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 19 places, 16 transitions, 68 flow [2021-03-11 19:46:51,012 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 19 places, 16 transitions, 66 flow, removed 1 selfloop flow, removed 0 redundant places. [2021-03-11 19:46:51,013 INFO L241 Difference]: Finished difference. Result has 21 places, 14 transitions, 56 flow [2021-03-11 19:46:51,013 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=80, PETRI_DIFFERENCE_MINUEND_FLOW=34, PETRI_DIFFERENCE_MINUEND_PLACES=17, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=12, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=9, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=56, PETRI_PLACES=21, PETRI_TRANSITIONS=14} [2021-03-11 19:46:51,013 INFO L335 CegarLoopForPetriNet]: 18 programPoint places, 3 predicate places. [2021-03-11 19:46:51,013 INFO L480 AbstractCegarLoop]: Abstraction has has 21 places, 14 transitions, 56 flow [2021-03-11 19:46:51,014 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 45.333333333333336) internal successors, (136), 3 states have internal predecessors, (136), 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) [2021-03-11 19:46:51,014 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-11 19:46:51,014 INFO L255 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1] [2021-03-11 19:46:51,014 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-03-11 19:46:51,014 INFO L428 AbstractCegarLoop]: === Iteration 2 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2021-03-11 19:46:51,014 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 19:46:51,014 INFO L82 PathProgramCache]: Analyzing trace with hash -2122327263, now seen corresponding path program 1 times [2021-03-11 19:46:51,014 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 19:46:51,014 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1904918887] [2021-03-11 19:46:51,015 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 19:46:51,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 19:46:51,050 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 19:46:51,051 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 19:46:51,051 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 19:46:51,052 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-11 19:46:51,054 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-03-11 19:46:51,054 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1904918887] [2021-03-11 19:46:51,054 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 19:46:51,054 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-03-11 19:46:51,054 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1048742682] [2021-03-11 19:46:51,054 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-03-11 19:46:51,054 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 19:46:51,055 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-03-11 19:46:51,055 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-11 19:46:51,055 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 47 out of 80 [2021-03-11 19:46:51,056 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 21 places, 14 transitions, 56 flow. Second operand has 3 states, 3 states have (on average 48.333333333333336) internal successors, (145), 3 states have internal predecessors, (145), 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) [2021-03-11 19:46:51,056 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-11 19:46:51,056 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 47 of 80 [2021-03-11 19:46:51,056 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-11 19:46:51,078 INFO L129 PetriNetUnfolder]: 7/37 cut-off events. [2021-03-11 19:46:51,078 INFO L130 PetriNetUnfolder]: For 26/26 co-relation queries the response was YES. [2021-03-11 19:46:51,078 INFO L84 FinitePrefix]: Finished finitePrefix Result has 110 conditions, 37 events. 7/37 cut-off events. For 26/26 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 101 event pairs, 5 based on Foata normal form. 0/34 useless extension candidates. Maximal degree in co-relation 74. Up to 16 conditions per place. [2021-03-11 19:46:51,079 INFO L132 encePairwiseOnDemand]: 76/80 looper letters, 9 selfloop transitions, 4 changer transitions 0/17 dead transitions. [2021-03-11 19:46:51,079 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 23 places, 17 transitions, 94 flow [2021-03-11 19:46:51,082 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-11 19:46:51,082 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-03-11 19:46:51,083 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 153 transitions. [2021-03-11 19:46:51,083 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.6375 [2021-03-11 19:46:51,083 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 153 transitions. [2021-03-11 19:46:51,083 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 153 transitions. [2021-03-11 19:46:51,084 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-11 19:46:51,084 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 153 transitions. [2021-03-11 19:46:51,084 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 51.0) internal successors, (153), 3 states have internal predecessors, (153), 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) [2021-03-11 19:46:51,085 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 80.0) internal successors, (320), 4 states have internal predecessors, (320), 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) [2021-03-11 19:46:51,085 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 80.0) internal successors, (320), 4 states have internal predecessors, (320), 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) [2021-03-11 19:46:51,085 INFO L185 Difference]: Start difference. First operand has 21 places, 14 transitions, 56 flow. Second operand 3 states and 153 transitions. [2021-03-11 19:46:51,085 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 23 places, 17 transitions, 94 flow [2021-03-11 19:46:51,086 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 21 places, 17 transitions, 86 flow, removed 0 selfloop flow, removed 2 redundant places. [2021-03-11 19:46:51,086 INFO L241 Difference]: Finished difference. Result has 23 places, 16 transitions, 78 flow [2021-03-11 19:46:51,086 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=80, PETRI_DIFFERENCE_MINUEND_FLOW=50, PETRI_DIFFERENCE_MINUEND_PLACES=19, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=14, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=10, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=78, PETRI_PLACES=23, PETRI_TRANSITIONS=16} [2021-03-11 19:46:51,087 INFO L335 CegarLoopForPetriNet]: 18 programPoint places, 5 predicate places. [2021-03-11 19:46:51,087 INFO L480 AbstractCegarLoop]: Abstraction has has 23 places, 16 transitions, 78 flow [2021-03-11 19:46:51,087 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 48.333333333333336) internal successors, (145), 3 states have internal predecessors, (145), 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) [2021-03-11 19:46:51,087 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-11 19:46:51,087 INFO L255 CegarLoopForPetriNet]: trace histogram [3, 2, 1, 1, 1, 1] [2021-03-11 19:46:51,087 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-03-11 19:46:51,087 INFO L428 AbstractCegarLoop]: === Iteration 3 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2021-03-11 19:46:51,088 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 19:46:51,088 INFO L82 PathProgramCache]: Analyzing trace with hash -1367710576, now seen corresponding path program 1 times [2021-03-11 19:46:51,088 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 19:46:51,088 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1076289830] [2021-03-11 19:46:51,088 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 19:46:51,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-03-11 19:46:51,098 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-03-11 19:46:51,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-03-11 19:46:51,105 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-03-11 19:46:51,109 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-03-11 19:46:51,109 INFO L620 BasicCegarLoop]: Counterexample might be feasible [2021-03-11 19:46:51,109 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-03-11 19:46:51,109 WARN L342 ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis [2021-03-11 19:46:51,110 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances. [2021-03-11 19:46:51,114 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:46:51,114 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:46:51,114 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:46:51,114 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:46:51,114 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:46:51,115 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:46:51,115 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:46:51,115 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:46:51,115 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:46:51,115 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:46:51,115 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:46:51,115 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:46:51,115 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:46:51,115 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:46:51,115 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:46:51,115 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:46:51,115 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:46:51,115 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:46:51,115 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:46:51,115 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:46:51,116 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:46:51,116 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:46:51,116 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:46:51,116 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:46:51,116 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:46:51,116 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:46:51,116 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:46:51,116 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:46:51,116 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:46:51,116 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:46:51,116 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:46:51,116 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:46:51,116 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:46:51,117 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:46:51,117 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:46:51,117 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:46:51,117 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:46:51,117 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:46:51,117 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:46:51,117 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:46:51,117 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:46:51,117 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:46:51,117 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:46:51,117 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:46:51,117 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:46:51,117 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:46:51,117 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:46:51,117 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:46:51,118 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:46:51,118 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:46:51,118 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:46:51,118 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:46:51,118 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:46:51,118 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:46:51,118 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:46:51,118 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:46:51,118 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:46:51,118 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:46:51,118 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:46:51,118 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:46:51,118 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:46:51,119 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:46:51,119 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:46:51,119 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:46:51,119 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:46:51,119 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:46:51,119 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:46:51,119 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:46:51,119 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:46:51,119 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:46:51,119 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:46:51,119 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:46:51,119 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:46:51,119 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:46:51,119 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:46:51,119 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:46:51,120 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:46:51,120 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:46:51,120 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:46:51,120 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:46:51,120 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:46:51,120 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:46:51,120 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:46:51,120 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:46:51,120 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:46:51,120 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:46:51,120 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:46:51,121 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:46:51,121 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:46:51,121 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:46:51,122 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:46:51,122 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:46:51,122 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:46:51,122 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:46:51,122 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:46:51,122 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:46:51,123 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:46:51,123 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:46:51,123 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:46:51,123 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:46:51,123 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:46:51,123 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:46:51,124 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-03-11 19:46:51,124 INFO L253 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2021-03-11 19:46:51,125 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-03-11 19:46:51,125 INFO L377 AbstractCegarLoop]: Hoare is false [2021-03-11 19:46:51,125 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-03-11 19:46:51,125 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-03-11 19:46:51,125 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-03-11 19:46:51,125 INFO L381 AbstractCegarLoop]: Difference is false [2021-03-11 19:46:51,125 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-03-11 19:46:51,125 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-03-11 19:46:51,126 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 63 places, 57 transitions, 135 flow [2021-03-11 19:46:51,133 INFO L129 PetriNetUnfolder]: 4/83 cut-off events. [2021-03-11 19:46:51,133 INFO L130 PetriNetUnfolder]: For 7/7 co-relation queries the response was YES. [2021-03-11 19:46:51,133 INFO L84 FinitePrefix]: Finished finitePrefix Result has 99 conditions, 83 events. 4/83 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 173 event pairs, 0 based on Foata normal form. 0/72 useless extension candidates. Maximal degree in co-relation 67. Up to 8 conditions per place. [2021-03-11 19:46:51,136 INFO L82 GeneralOperation]: Start removeDead. Operand has 63 places, 57 transitions, 135 flow [2021-03-11 19:46:51,138 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 63 places, 57 transitions, 135 flow [2021-03-11 19:46:51,138 INFO L118 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-03-11 19:46:51,138 INFO L133 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 63 places, 57 transitions, 135 flow [2021-03-11 19:46:51,139 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 63 places, 57 transitions, 135 flow [2021-03-11 19:46:51,139 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 63 places, 57 transitions, 135 flow [2021-03-11 19:46:51,147 INFO L129 PetriNetUnfolder]: 4/83 cut-off events. [2021-03-11 19:46:51,147 INFO L130 PetriNetUnfolder]: For 7/7 co-relation queries the response was YES. [2021-03-11 19:46:51,147 INFO L84 FinitePrefix]: Finished finitePrefix Result has 99 conditions, 83 events. 4/83 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 176 event pairs, 0 based on Foata normal form. 0/72 useless extension candidates. Maximal degree in co-relation 67. Up to 8 conditions per place. [2021-03-11 19:46:51,148 INFO L116 LiptonReduction]: Number of co-enabled transitions 1260 [2021-03-11 19:46:52,426 INFO L131 LiptonReduction]: Checked pairs total: 1820 [2021-03-11 19:46:52,426 INFO L133 LiptonReduction]: Total number of compositions: 41 [2021-03-11 19:46:52,426 INFO L182 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 1288 [2021-03-11 19:46:52,428 INFO L129 PetriNetUnfolder]: 0/8 cut-off events. [2021-03-11 19:46:52,428 INFO L130 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2021-03-11 19:46:52,428 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-11 19:46:52,428 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2021-03-11 19:46:52,429 INFO L428 AbstractCegarLoop]: === Iteration 1 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2021-03-11 19:46:52,429 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 19:46:52,429 INFO L82 PathProgramCache]: Analyzing trace with hash 345328526, now seen corresponding path program 1 times [2021-03-11 19:46:52,429 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 19:46:52,429 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1886567614] [2021-03-11 19:46:52,429 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 19:46:52,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 19:46:52,443 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 19:46:52,444 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 19:46:52,444 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 19:46:52,444 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-11 19:46:52,446 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 19:46:52,446 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1886567614] [2021-03-11 19:46:52,447 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 19:46:52,447 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-03-11 19:46:52,447 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [946577182] [2021-03-11 19:46:52,447 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-03-11 19:46:52,447 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 19:46:52,449 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-03-11 19:46:52,449 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-11 19:46:52,450 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 56 out of 98 [2021-03-11 19:46:52,450 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 24 places, 17 transitions, 55 flow. Second operand has 3 states, 3 states have (on average 57.333333333333336) internal successors, (172), 3 states have internal predecessors, (172), 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) [2021-03-11 19:46:52,450 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-11 19:46:52,450 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 56 of 98 [2021-03-11 19:46:52,450 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-11 19:46:52,483 INFO L129 PetriNetUnfolder]: 108/212 cut-off events. [2021-03-11 19:46:52,483 INFO L130 PetriNetUnfolder]: For 8/8 co-relation queries the response was YES. [2021-03-11 19:46:52,484 INFO L84 FinitePrefix]: Finished finitePrefix Result has 431 conditions, 212 events. 108/212 cut-off events. For 8/8 co-relation queries the response was YES. Maximal size of possible extension queue 30. Compared 918 event pairs, 46 based on Foata normal form. 98/240 useless extension candidates. Maximal degree in co-relation 402. Up to 124 conditions per place. [2021-03-11 19:46:52,485 INFO L132 encePairwiseOnDemand]: 92/98 looper letters, 14 selfloop transitions, 4 changer transitions 0/23 dead transitions. [2021-03-11 19:46:52,485 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 25 places, 23 transitions, 103 flow [2021-03-11 19:46:52,485 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-11 19:46:52,485 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-03-11 19:46:52,486 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 189 transitions. [2021-03-11 19:46:52,487 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.6428571428571429 [2021-03-11 19:46:52,487 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 189 transitions. [2021-03-11 19:46:52,487 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 189 transitions. [2021-03-11 19:46:52,487 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-11 19:46:52,487 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 189 transitions. [2021-03-11 19:46:52,488 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 63.0) internal successors, (189), 3 states have internal predecessors, (189), 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) [2021-03-11 19:46:52,488 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 98.0) internal successors, (392), 4 states have internal predecessors, (392), 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) [2021-03-11 19:46:52,489 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 98.0) internal successors, (392), 4 states have internal predecessors, (392), 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) [2021-03-11 19:46:52,489 INFO L185 Difference]: Start difference. First operand has 24 places, 17 transitions, 55 flow. Second operand 3 states and 189 transitions. [2021-03-11 19:46:52,489 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 25 places, 23 transitions, 103 flow [2021-03-11 19:46:52,489 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 25 places, 23 transitions, 97 flow, removed 3 selfloop flow, removed 0 redundant places. [2021-03-11 19:46:52,490 INFO L241 Difference]: Finished difference. Result has 27 places, 19 transitions, 77 flow [2021-03-11 19:46:52,490 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=98, PETRI_DIFFERENCE_MINUEND_FLOW=47, PETRI_DIFFERENCE_MINUEND_PLACES=23, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=16, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=12, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=77, PETRI_PLACES=27, PETRI_TRANSITIONS=19} [2021-03-11 19:46:52,490 INFO L335 CegarLoopForPetriNet]: 24 programPoint places, 3 predicate places. [2021-03-11 19:46:52,490 INFO L480 AbstractCegarLoop]: Abstraction has has 27 places, 19 transitions, 77 flow [2021-03-11 19:46:52,490 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 57.333333333333336) internal successors, (172), 3 states have internal predecessors, (172), 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) [2021-03-11 19:46:52,490 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-11 19:46:52,490 INFO L255 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1] [2021-03-11 19:46:52,490 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-03-11 19:46:52,490 INFO L428 AbstractCegarLoop]: === Iteration 2 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2021-03-11 19:46:52,491 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 19:46:52,491 INFO L82 PathProgramCache]: Analyzing trace with hash 1144990802, now seen corresponding path program 1 times [2021-03-11 19:46:52,491 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 19:46:52,491 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1212444329] [2021-03-11 19:46:52,491 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 19:46:52,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 19:46:52,505 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 19:46:52,505 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 19:46:52,506 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 19:46:52,506 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-11 19:46:52,508 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-03-11 19:46:52,508 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1212444329] [2021-03-11 19:46:52,508 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 19:46:52,508 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-03-11 19:46:52,508 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1050769408] [2021-03-11 19:46:52,516 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-03-11 19:46:52,516 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 19:46:52,516 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-03-11 19:46:52,517 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-11 19:46:52,517 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 55 out of 98 [2021-03-11 19:46:52,517 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 27 places, 19 transitions, 77 flow. Second operand has 3 states, 3 states have (on average 56.333333333333336) internal successors, (169), 3 states have internal predecessors, (169), 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) [2021-03-11 19:46:52,517 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-11 19:46:52,517 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 55 of 98 [2021-03-11 19:46:52,517 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-11 19:46:52,558 INFO L129 PetriNetUnfolder]: 130/268 cut-off events. [2021-03-11 19:46:52,558 INFO L130 PetriNetUnfolder]: For 179/217 co-relation queries the response was YES. [2021-03-11 19:46:52,559 INFO L84 FinitePrefix]: Finished finitePrefix Result has 733 conditions, 268 events. 130/268 cut-off events. For 179/217 co-relation queries the response was YES. Maximal size of possible extension queue 43. Compared 1251 event pairs, 40 based on Foata normal form. 1/209 useless extension candidates. Maximal degree in co-relation 696. Up to 156 conditions per place. [2021-03-11 19:46:52,569 INFO L132 encePairwiseOnDemand]: 93/98 looper letters, 17 selfloop transitions, 6 changer transitions 0/28 dead transitions. [2021-03-11 19:46:52,569 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 29 places, 28 transitions, 159 flow [2021-03-11 19:46:52,570 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-11 19:46:52,570 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-03-11 19:46:52,572 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 184 transitions. [2021-03-11 19:46:52,574 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.6258503401360545 [2021-03-11 19:46:52,575 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 184 transitions. [2021-03-11 19:46:52,575 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 184 transitions. [2021-03-11 19:46:52,575 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-11 19:46:52,575 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 184 transitions. [2021-03-11 19:46:52,576 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 61.333333333333336) internal successors, (184), 3 states have internal predecessors, (184), 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) [2021-03-11 19:46:52,578 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 98.0) internal successors, (392), 4 states have internal predecessors, (392), 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) [2021-03-11 19:46:52,578 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 98.0) internal successors, (392), 4 states have internal predecessors, (392), 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) [2021-03-11 19:46:52,578 INFO L185 Difference]: Start difference. First operand has 27 places, 19 transitions, 77 flow. Second operand 3 states and 184 transitions. [2021-03-11 19:46:52,578 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 29 places, 28 transitions, 159 flow [2021-03-11 19:46:52,581 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 27 places, 28 transitions, 145 flow, removed 0 selfloop flow, removed 2 redundant places. [2021-03-11 19:46:52,582 INFO L241 Difference]: Finished difference. Result has 29 places, 23 transitions, 117 flow [2021-03-11 19:46:52,582 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=98, PETRI_DIFFERENCE_MINUEND_FLOW=69, PETRI_DIFFERENCE_MINUEND_PLACES=25, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=19, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=13, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=117, PETRI_PLACES=29, PETRI_TRANSITIONS=23} [2021-03-11 19:46:52,582 INFO L335 CegarLoopForPetriNet]: 24 programPoint places, 5 predicate places. [2021-03-11 19:46:52,582 INFO L480 AbstractCegarLoop]: Abstraction has has 29 places, 23 transitions, 117 flow [2021-03-11 19:46:52,582 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 56.333333333333336) internal successors, (169), 3 states have internal predecessors, (169), 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) [2021-03-11 19:46:52,582 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-11 19:46:52,582 INFO L255 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 19:46:52,582 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-03-11 19:46:52,583 INFO L428 AbstractCegarLoop]: === Iteration 3 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2021-03-11 19:46:52,583 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 19:46:52,583 INFO L82 PathProgramCache]: Analyzing trace with hash 1134980923, now seen corresponding path program 1 times [2021-03-11 19:46:52,583 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 19:46:52,583 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [116923625] [2021-03-11 19:46:52,583 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 19:46:52,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 19:46:52,639 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 19:46:52,640 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 19:46:52,641 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 19:46:52,641 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-11 19:46:52,643 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 19:46:52,643 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-11 19:46:52,646 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-03-11 19:46:52,646 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [116923625] [2021-03-11 19:46:52,646 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 19:46:52,646 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-11 19:46:52,646 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [42931833] [2021-03-11 19:46:52,647 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-03-11 19:46:52,647 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 19:46:52,647 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-03-11 19:46:52,647 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-03-11 19:46:52,647 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 56 out of 98 [2021-03-11 19:46:52,648 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 29 places, 23 transitions, 117 flow. Second operand has 4 states, 4 states have (on average 57.25) internal successors, (229), 4 states have internal predecessors, (229), 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) [2021-03-11 19:46:52,648 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-11 19:46:52,648 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 56 of 98 [2021-03-11 19:46:52,648 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-11 19:46:52,699 INFO L129 PetriNetUnfolder]: 101/217 cut-off events. [2021-03-11 19:46:52,699 INFO L130 PetriNetUnfolder]: For 263/386 co-relation queries the response was YES. [2021-03-11 19:46:52,701 INFO L84 FinitePrefix]: Finished finitePrefix Result has 697 conditions, 217 events. 101/217 cut-off events. For 263/386 co-relation queries the response was YES. Maximal size of possible extension queue 35. Compared 1010 event pairs, 18 based on Foata normal form. 6/190 useless extension candidates. Maximal degree in co-relation 676. Up to 176 conditions per place. [2021-03-11 19:46:52,702 INFO L132 encePairwiseOnDemand]: 96/98 looper letters, 22 selfloop transitions, 2 changer transitions 0/29 dead transitions. [2021-03-11 19:46:52,703 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 30 places, 29 transitions, 195 flow [2021-03-11 19:46:52,703 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-11 19:46:52,703 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-03-11 19:46:52,703 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 185 transitions. [2021-03-11 19:46:52,703 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.6292517006802721 [2021-03-11 19:46:52,704 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 185 transitions. [2021-03-11 19:46:52,704 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 185 transitions. [2021-03-11 19:46:52,704 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-11 19:46:52,704 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 185 transitions. [2021-03-11 19:46:52,704 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 61.666666666666664) internal successors, (185), 3 states have internal predecessors, (185), 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) [2021-03-11 19:46:52,706 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 98.0) internal successors, (392), 4 states have internal predecessors, (392), 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) [2021-03-11 19:46:52,706 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 98.0) internal successors, (392), 4 states have internal predecessors, (392), 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) [2021-03-11 19:46:52,706 INFO L185 Difference]: Start difference. First operand has 29 places, 23 transitions, 117 flow. Second operand 3 states and 185 transitions. [2021-03-11 19:46:52,706 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 30 places, 29 transitions, 195 flow [2021-03-11 19:46:52,708 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 28 places, 29 transitions, 177 flow, removed 0 selfloop flow, removed 2 redundant places. [2021-03-11 19:46:52,709 INFO L241 Difference]: Finished difference. Result has 28 places, 22 transitions, 105 flow [2021-03-11 19:46:52,709 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=98, PETRI_DIFFERENCE_MINUEND_FLOW=101, PETRI_DIFFERENCE_MINUEND_PLACES=26, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=22, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=20, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=105, PETRI_PLACES=28, PETRI_TRANSITIONS=22} [2021-03-11 19:46:52,709 INFO L335 CegarLoopForPetriNet]: 24 programPoint places, 4 predicate places. [2021-03-11 19:46:52,709 INFO L480 AbstractCegarLoop]: Abstraction has has 28 places, 22 transitions, 105 flow [2021-03-11 19:46:52,710 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 57.25) internal successors, (229), 4 states have internal predecessors, (229), 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) [2021-03-11 19:46:52,710 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-11 19:46:52,710 INFO L255 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 19:46:52,710 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-03-11 19:46:52,710 INFO L428 AbstractCegarLoop]: === Iteration 4 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2021-03-11 19:46:52,711 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 19:46:52,711 INFO L82 PathProgramCache]: Analyzing trace with hash 1134978143, now seen corresponding path program 1 times [2021-03-11 19:46:52,711 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 19:46:52,711 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1469309955] [2021-03-11 19:46:52,711 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 19:46:52,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 19:46:52,744 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 19:46:52,744 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 19:46:52,745 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 19:46:52,745 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-11 19:46:52,747 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 19:46:52,748 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-11 19:46:52,751 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-03-11 19:46:52,751 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1469309955] [2021-03-11 19:46:52,751 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 19:46:52,751 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-11 19:46:52,751 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1885405566] [2021-03-11 19:46:52,751 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-03-11 19:46:52,752 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 19:46:52,752 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-03-11 19:46:52,752 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-03-11 19:46:52,752 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 55 out of 98 [2021-03-11 19:46:52,753 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 28 places, 22 transitions, 105 flow. Second operand has 4 states, 4 states have (on average 56.25) internal successors, (225), 4 states have internal predecessors, (225), 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) [2021-03-11 19:46:52,753 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-11 19:46:52,753 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 55 of 98 [2021-03-11 19:46:52,753 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-11 19:46:52,786 INFO L129 PetriNetUnfolder]: 81/182 cut-off events. [2021-03-11 19:46:52,786 INFO L130 PetriNetUnfolder]: For 175/280 co-relation queries the response was YES. [2021-03-11 19:46:52,787 INFO L84 FinitePrefix]: Finished finitePrefix Result has 569 conditions, 182 events. 81/182 cut-off events. For 175/280 co-relation queries the response was YES. Maximal size of possible extension queue 27. Compared 768 event pairs, 14 based on Foata normal form. 4/158 useless extension candidates. Maximal degree in co-relation 530. Up to 142 conditions per place. [2021-03-11 19:46:52,788 INFO L132 encePairwiseOnDemand]: 96/98 looper letters, 20 selfloop transitions, 2 changer transitions 0/27 dead transitions. [2021-03-11 19:46:52,788 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 29 places, 27 transitions, 171 flow [2021-03-11 19:46:52,788 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-11 19:46:52,788 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-03-11 19:46:52,789 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 180 transitions. [2021-03-11 19:46:52,789 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.6122448979591837 [2021-03-11 19:46:52,789 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 180 transitions. [2021-03-11 19:46:52,789 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 180 transitions. [2021-03-11 19:46:52,790 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-11 19:46:52,790 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 180 transitions. [2021-03-11 19:46:52,791 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 60.0) internal successors, (180), 3 states have internal predecessors, (180), 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) [2021-03-11 19:46:52,791 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 98.0) internal successors, (392), 4 states have internal predecessors, (392), 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) [2021-03-11 19:46:52,792 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 98.0) internal successors, (392), 4 states have internal predecessors, (392), 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) [2021-03-11 19:46:52,792 INFO L185 Difference]: Start difference. First operand has 28 places, 22 transitions, 105 flow. Second operand 3 states and 180 transitions. [2021-03-11 19:46:52,792 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 29 places, 27 transitions, 171 flow [2021-03-11 19:46:52,793 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 28 places, 27 transitions, 168 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-03-11 19:46:52,793 INFO L241 Difference]: Finished difference. Result has 28 places, 21 transitions, 103 flow [2021-03-11 19:46:52,794 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=98, PETRI_DIFFERENCE_MINUEND_FLOW=99, PETRI_DIFFERENCE_MINUEND_PLACES=26, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=21, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=19, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=103, PETRI_PLACES=28, PETRI_TRANSITIONS=21} [2021-03-11 19:46:52,794 INFO L335 CegarLoopForPetriNet]: 24 programPoint places, 4 predicate places. [2021-03-11 19:46:52,794 INFO L480 AbstractCegarLoop]: Abstraction has has 28 places, 21 transitions, 103 flow [2021-03-11 19:46:52,794 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 56.25) internal successors, (225), 4 states have internal predecessors, (225), 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) [2021-03-11 19:46:52,794 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-11 19:46:52,794 INFO L255 CegarLoopForPetriNet]: trace histogram [3, 2, 1, 1, 1, 1, 1, 1] [2021-03-11 19:46:52,794 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-03-11 19:46:52,794 INFO L428 AbstractCegarLoop]: === Iteration 5 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2021-03-11 19:46:52,794 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 19:46:52,795 INFO L82 PathProgramCache]: Analyzing trace with hash -297262045, now seen corresponding path program 1 times [2021-03-11 19:46:52,795 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 19:46:52,795 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [611305825] [2021-03-11 19:46:52,795 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 19:46:52,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 19:46:52,821 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 19:46:52,821 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 19:46:52,822 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 19:46:52,822 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-11 19:46:52,824 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2021-03-11 19:46:52,827 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [611305825] [2021-03-11 19:46:52,827 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 19:46:52,827 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-03-11 19:46:52,827 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [846668380] [2021-03-11 19:46:52,828 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-03-11 19:46:52,828 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 19:46:52,828 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-03-11 19:46:52,829 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-11 19:46:52,829 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 54 out of 98 [2021-03-11 19:46:52,829 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 28 places, 21 transitions, 103 flow. Second operand has 3 states, 3 states have (on average 55.333333333333336) internal successors, (166), 3 states have internal predecessors, (166), 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) [2021-03-11 19:46:52,829 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-11 19:46:52,829 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 54 of 98 [2021-03-11 19:46:52,829 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-11 19:46:52,861 INFO L129 PetriNetUnfolder]: 90/217 cut-off events. [2021-03-11 19:46:52,861 INFO L130 PetriNetUnfolder]: For 221/233 co-relation queries the response was YES. [2021-03-11 19:46:52,862 INFO L84 FinitePrefix]: Finished finitePrefix Result has 730 conditions, 217 events. 90/217 cut-off events. For 221/233 co-relation queries the response was YES. Maximal size of possible extension queue 34. Compared 1043 event pairs, 38 based on Foata normal form. 0/198 useless extension candidates. Maximal degree in co-relation 710. Up to 135 conditions per place. [2021-03-11 19:46:52,863 INFO L132 encePairwiseOnDemand]: 93/98 looper letters, 16 selfloop transitions, 9 changer transitions 0/30 dead transitions. [2021-03-11 19:46:52,863 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 30 places, 30 transitions, 201 flow [2021-03-11 19:46:52,863 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-11 19:46:52,863 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-03-11 19:46:52,863 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 177 transitions. [2021-03-11 19:46:52,864 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.6020408163265306 [2021-03-11 19:46:52,864 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 177 transitions. [2021-03-11 19:46:52,864 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 177 transitions. [2021-03-11 19:46:52,864 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-11 19:46:52,864 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 177 transitions. [2021-03-11 19:46:52,864 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 59.0) internal successors, (177), 3 states have internal predecessors, (177), 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) [2021-03-11 19:46:52,865 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 98.0) internal successors, (392), 4 states have internal predecessors, (392), 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) [2021-03-11 19:46:52,865 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 98.0) internal successors, (392), 4 states have internal predecessors, (392), 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) [2021-03-11 19:46:52,865 INFO L185 Difference]: Start difference. First operand has 28 places, 21 transitions, 103 flow. Second operand 3 states and 177 transitions. [2021-03-11 19:46:52,865 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 30 places, 30 transitions, 201 flow [2021-03-11 19:46:52,866 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 29 places, 30 transitions, 197 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-03-11 19:46:52,867 INFO L241 Difference]: Finished difference. Result has 31 places, 26 transitions, 179 flow [2021-03-11 19:46:52,867 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=98, PETRI_DIFFERENCE_MINUEND_FLOW=101, PETRI_DIFFERENCE_MINUEND_PLACES=27, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=21, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=12, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=179, PETRI_PLACES=31, PETRI_TRANSITIONS=26} [2021-03-11 19:46:52,867 INFO L335 CegarLoopForPetriNet]: 24 programPoint places, 7 predicate places. [2021-03-11 19:46:52,867 INFO L480 AbstractCegarLoop]: Abstraction has has 31 places, 26 transitions, 179 flow [2021-03-11 19:46:52,867 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 55.333333333333336) internal successors, (166), 3 states have internal predecessors, (166), 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) [2021-03-11 19:46:52,867 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-11 19:46:52,867 INFO L255 CegarLoopForPetriNet]: trace histogram [4, 3, 1, 1, 1, 1, 1] [2021-03-11 19:46:52,867 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-03-11 19:46:52,867 INFO L428 AbstractCegarLoop]: === Iteration 6 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2021-03-11 19:46:52,868 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 19:46:52,868 INFO L82 PathProgramCache]: Analyzing trace with hash -625284552, now seen corresponding path program 1 times [2021-03-11 19:46:52,868 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 19:46:52,868 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1447818241] [2021-03-11 19:46:52,868 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 19:46:52,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-03-11 19:46:52,891 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-03-11 19:46:52,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-03-11 19:46:52,895 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-03-11 19:46:52,898 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-03-11 19:46:52,898 INFO L620 BasicCegarLoop]: Counterexample might be feasible [2021-03-11 19:46:52,899 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-03-11 19:46:52,899 WARN L342 ceAbstractionStarter]: 3 thread instances were not sufficient, I will increase this number and restart the analysis [2021-03-11 19:46:52,899 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 4 thread instances. [2021-03-11 19:46:52,913 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:46:52,914 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:46:52,914 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:46:52,914 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:46:52,914 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:46:52,914 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:46:52,914 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:46:52,914 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:46:52,914 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:46:52,914 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:46:52,914 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:46:52,914 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:46:52,914 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:46:52,914 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:46:52,914 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:46:52,915 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:46:52,915 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:46:52,915 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:46:52,917 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:46:52,917 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:46:52,917 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:46:52,917 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:46:52,917 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:46:52,917 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:46:52,917 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:46:52,917 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:46:52,917 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:46:52,918 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:46:52,918 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:46:52,918 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:46:52,918 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:46:52,918 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:46:52,918 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:46:52,918 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:46:52,918 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:46:52,918 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:46:52,918 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:46:52,918 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:46:52,918 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:46:52,918 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:46:52,919 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:46:52,919 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:46:52,919 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:46:52,919 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:46:52,919 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:46:52,919 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:46:52,919 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:46:52,919 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:46:52,919 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:46:52,919 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:46:52,919 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:46:52,919 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:46:52,919 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:46:52,920 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:46:52,920 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:46:52,920 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:46:52,920 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:46:52,921 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:46:52,921 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:46:52,921 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:46:52,921 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:46:52,921 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:46:52,921 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:46:52,921 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:46:52,921 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:46:52,921 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:46:52,921 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:46:52,921 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:46:52,921 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:46:52,921 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:46:52,921 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:46:52,922 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:46:52,922 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:46:52,922 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:46:52,922 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:46:52,922 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:46:52,922 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:46:52,922 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:46:52,923 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:46:52,923 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:46:52,923 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:46:52,923 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:46:52,923 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:46:52,923 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:46:52,924 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:46:52,924 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:46:52,924 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:46:52,924 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:46:52,924 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:46:52,924 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:46:52,924 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:46:52,924 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:46:52,924 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:46:52,924 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:46:52,924 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:46:52,924 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:46:52,924 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:46:52,924 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:46:52,924 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:46:52,925 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:46:52,925 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:46:52,925 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:46:52,925 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:46:52,925 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:46:52,925 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:46:52,925 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:46:52,925 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:46:52,925 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:46:52,925 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:46:52,925 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:46:52,925 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:46:52,925 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:46:52,926 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:46:52,926 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:46:52,926 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:46:52,926 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:46:52,926 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:46:52,927 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:46:52,927 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:46:52,928 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:46:52,928 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:46:52,928 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:46:52,928 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:46:52,928 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:46:52,929 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:46:52,929 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:46:52,929 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:46:52,930 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:46:52,930 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:46:52,931 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:46:52,931 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:46:52,931 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:46:52,931 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:46:52,932 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:46:52,932 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:46:52,932 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:46:52,932 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-03-11 19:46:52,933 INFO L253 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2021-03-11 19:46:52,933 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-03-11 19:46:52,933 INFO L377 AbstractCegarLoop]: Hoare is false [2021-03-11 19:46:52,933 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-03-11 19:46:52,933 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-03-11 19:46:52,933 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-03-11 19:46:52,934 INFO L381 AbstractCegarLoop]: Difference is false [2021-03-11 19:46:52,934 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-03-11 19:46:52,934 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-03-11 19:46:52,939 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 76 places, 68 transitions, 168 flow [2021-03-11 19:46:52,945 INFO L129 PetriNetUnfolder]: 5/103 cut-off events. [2021-03-11 19:46:52,945 INFO L130 PetriNetUnfolder]: For 16/16 co-relation queries the response was YES. [2021-03-11 19:46:52,946 INFO L84 FinitePrefix]: Finished finitePrefix Result has 126 conditions, 103 events. 5/103 cut-off events. For 16/16 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 233 event pairs, 0 based on Foata normal form. 0/89 useless extension candidates. Maximal degree in co-relation 91. Up to 10 conditions per place. [2021-03-11 19:46:52,947 INFO L82 GeneralOperation]: Start removeDead. Operand has 76 places, 68 transitions, 168 flow [2021-03-11 19:46:52,948 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 76 places, 68 transitions, 168 flow [2021-03-11 19:46:52,948 INFO L118 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-03-11 19:46:52,948 INFO L133 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 76 places, 68 transitions, 168 flow [2021-03-11 19:46:52,948 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 76 places, 68 transitions, 168 flow [2021-03-11 19:46:52,948 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 76 places, 68 transitions, 168 flow [2021-03-11 19:46:52,957 INFO L129 PetriNetUnfolder]: 5/103 cut-off events. [2021-03-11 19:46:52,957 INFO L130 PetriNetUnfolder]: For 16/16 co-relation queries the response was YES. [2021-03-11 19:46:52,957 INFO L84 FinitePrefix]: Finished finitePrefix Result has 126 conditions, 103 events. 5/103 cut-off events. For 16/16 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 235 event pairs, 0 based on Foata normal form. 0/89 useless extension candidates. Maximal degree in co-relation 91. Up to 10 conditions per place. [2021-03-11 19:46:52,959 INFO L116 LiptonReduction]: Number of co-enabled transitions 2120 [2021-03-11 19:46:54,311 INFO L131 LiptonReduction]: Checked pairs total: 3304 [2021-03-11 19:46:54,311 INFO L133 LiptonReduction]: Total number of compositions: 48 [2021-03-11 19:46:54,311 INFO L182 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 1363 [2021-03-11 19:46:54,313 INFO L129 PetriNetUnfolder]: 0/8 cut-off events. [2021-03-11 19:46:54,313 INFO L130 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2021-03-11 19:46:54,313 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-11 19:46:54,313 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2021-03-11 19:46:54,313 INFO L428 AbstractCegarLoop]: === Iteration 1 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-11 19:46:54,313 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 19:46:54,313 INFO L82 PathProgramCache]: Analyzing trace with hash 466487743, now seen corresponding path program 1 times [2021-03-11 19:46:54,313 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 19:46:54,313 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1830540938] [2021-03-11 19:46:54,313 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 19:46:54,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 19:46:54,325 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 19:46:54,325 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 19:46:54,326 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 19:46:54,326 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-11 19:46:54,328 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 19:46:54,328 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1830540938] [2021-03-11 19:46:54,328 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 19:46:54,328 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-03-11 19:46:54,328 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1453884105] [2021-03-11 19:46:54,328 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-03-11 19:46:54,329 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 19:46:54,329 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-03-11 19:46:54,329 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-11 19:46:54,329 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 70 out of 116 [2021-03-11 19:46:54,329 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 30 places, 21 transitions, 74 flow. Second operand has 3 states, 3 states have (on average 71.33333333333333) internal successors, (214), 3 states have internal predecessors, (214), 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) [2021-03-11 19:46:54,330 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-11 19:46:54,330 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 70 of 116 [2021-03-11 19:46:54,330 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-11 19:46:54,417 INFO L129 PetriNetUnfolder]: 729/1124 cut-off events. [2021-03-11 19:46:54,418 INFO L130 PetriNetUnfolder]: For 17/17 co-relation queries the response was YES. [2021-03-11 19:46:54,420 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2259 conditions, 1124 events. 729/1124 cut-off events. For 17/17 co-relation queries the response was YES. Maximal size of possible extension queue 99. Compared 5458 event pairs, 366 based on Foata normal form. 388/1129 useless extension candidates. Maximal degree in co-relation 2220. Up to 729 conditions per place. [2021-03-11 19:46:54,426 INFO L132 encePairwiseOnDemand]: 109/116 looper letters, 19 selfloop transitions, 5 changer transitions 0/30 dead transitions. [2021-03-11 19:46:54,426 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 31 places, 30 transitions, 140 flow [2021-03-11 19:46:54,426 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-11 19:46:54,426 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-03-11 19:46:54,427 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 237 transitions. [2021-03-11 19:46:54,427 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.6810344827586207 [2021-03-11 19:46:54,427 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 237 transitions. [2021-03-11 19:46:54,427 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 237 transitions. [2021-03-11 19:46:54,427 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-11 19:46:54,427 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 237 transitions. [2021-03-11 19:46:54,428 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 79.0) internal successors, (237), 3 states have internal predecessors, (237), 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) [2021-03-11 19:46:54,428 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 116.0) internal successors, (464), 4 states have internal predecessors, (464), 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) [2021-03-11 19:46:54,429 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 116.0) internal successors, (464), 4 states have internal predecessors, (464), 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) [2021-03-11 19:46:54,429 INFO L185 Difference]: Start difference. First operand has 30 places, 21 transitions, 74 flow. Second operand 3 states and 237 transitions. [2021-03-11 19:46:54,429 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 31 places, 30 transitions, 140 flow [2021-03-11 19:46:54,430 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 31 places, 30 transitions, 128 flow, removed 6 selfloop flow, removed 0 redundant places. [2021-03-11 19:46:54,430 INFO L241 Difference]: Finished difference. Result has 33 places, 24 transitions, 98 flow [2021-03-11 19:46:54,430 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=116, PETRI_DIFFERENCE_MINUEND_FLOW=60, PETRI_DIFFERENCE_MINUEND_PLACES=29, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=20, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=15, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=98, PETRI_PLACES=33, PETRI_TRANSITIONS=24} [2021-03-11 19:46:54,430 INFO L335 CegarLoopForPetriNet]: 30 programPoint places, 3 predicate places. [2021-03-11 19:46:54,430 INFO L480 AbstractCegarLoop]: Abstraction has has 33 places, 24 transitions, 98 flow [2021-03-11 19:46:54,431 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 71.33333333333333) internal successors, (214), 3 states have internal predecessors, (214), 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) [2021-03-11 19:46:54,431 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-11 19:46:54,431 INFO L255 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1] [2021-03-11 19:46:54,431 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-03-11 19:46:54,431 INFO L428 AbstractCegarLoop]: === Iteration 2 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-11 19:46:54,431 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 19:46:54,431 INFO L82 PathProgramCache]: Analyzing trace with hash -1483644299, now seen corresponding path program 1 times [2021-03-11 19:46:54,431 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 19:46:54,431 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [406788473] [2021-03-11 19:46:54,431 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 19:46:54,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 19:46:54,448 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 19:46:54,449 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 19:46:54,449 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 19:46:54,450 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-11 19:46:54,452 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-03-11 19:46:54,452 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [406788473] [2021-03-11 19:46:54,452 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 19:46:54,452 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-03-11 19:46:54,453 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [990002275] [2021-03-11 19:46:54,453 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-03-11 19:46:54,453 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 19:46:54,453 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-03-11 19:46:54,453 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-11 19:46:54,453 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 70 out of 116 [2021-03-11 19:46:54,454 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 33 places, 24 transitions, 98 flow. Second operand has 3 states, 3 states have (on average 71.33333333333333) internal successors, (214), 3 states have internal predecessors, (214), 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) [2021-03-11 19:46:54,454 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-11 19:46:54,454 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 70 of 116 [2021-03-11 19:46:54,454 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-11 19:46:54,551 INFO L129 PetriNetUnfolder]: 982/1543 cut-off events. [2021-03-11 19:46:54,551 INFO L130 PetriNetUnfolder]: For 1031/1615 co-relation queries the response was YES. [2021-03-11 19:46:54,554 INFO L84 FinitePrefix]: Finished finitePrefix Result has 4107 conditions, 1543 events. 982/1543 cut-off events. For 1031/1615 co-relation queries the response was YES. Maximal size of possible extension queue 143. Compared 8014 event pairs, 363 based on Foata normal form. 1/1144 useless extension candidates. Maximal degree in co-relation 4069. Up to 1010 conditions per place. [2021-03-11 19:46:54,564 INFO L132 encePairwiseOnDemand]: 110/116 looper letters, 23 selfloop transitions, 8 changer transitions 0/37 dead transitions. [2021-03-11 19:46:54,564 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 35 places, 37 transitions, 210 flow [2021-03-11 19:46:54,564 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-11 19:46:54,565 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-03-11 19:46:54,565 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 235 transitions. [2021-03-11 19:46:54,565 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.6752873563218391 [2021-03-11 19:46:54,565 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 235 transitions. [2021-03-11 19:46:54,565 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 235 transitions. [2021-03-11 19:46:54,565 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-11 19:46:54,566 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 235 transitions. [2021-03-11 19:46:54,566 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 78.33333333333333) internal successors, (235), 3 states have internal predecessors, (235), 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) [2021-03-11 19:46:54,567 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 116.0) internal successors, (464), 4 states have internal predecessors, (464), 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) [2021-03-11 19:46:54,567 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 116.0) internal successors, (464), 4 states have internal predecessors, (464), 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) [2021-03-11 19:46:54,567 INFO L185 Difference]: Start difference. First operand has 33 places, 24 transitions, 98 flow. Second operand 3 states and 235 transitions. [2021-03-11 19:46:54,567 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 35 places, 37 transitions, 210 flow [2021-03-11 19:46:54,570 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 33 places, 37 transitions, 192 flow, removed 0 selfloop flow, removed 2 redundant places. [2021-03-11 19:46:54,571 INFO L241 Difference]: Finished difference. Result has 35 places, 30 transitions, 156 flow [2021-03-11 19:46:54,571 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=116, PETRI_DIFFERENCE_MINUEND_FLOW=88, PETRI_DIFFERENCE_MINUEND_PLACES=31, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=24, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=16, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=156, PETRI_PLACES=35, PETRI_TRANSITIONS=30} [2021-03-11 19:46:54,571 INFO L335 CegarLoopForPetriNet]: 30 programPoint places, 5 predicate places. [2021-03-11 19:46:54,571 INFO L480 AbstractCegarLoop]: Abstraction has has 35 places, 30 transitions, 156 flow [2021-03-11 19:46:54,572 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 71.33333333333333) internal successors, (214), 3 states have internal predecessors, (214), 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) [2021-03-11 19:46:54,572 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-11 19:46:54,572 INFO L255 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 19:46:54,572 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-03-11 19:46:54,572 INFO L428 AbstractCegarLoop]: === Iteration 3 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-11 19:46:54,572 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 19:46:54,572 INFO L82 PathProgramCache]: Analyzing trace with hash 1251668032, now seen corresponding path program 1 times [2021-03-11 19:46:54,572 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 19:46:54,574 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1948258503] [2021-03-11 19:46:54,574 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 19:46:54,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 19:46:54,588 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 19:46:54,588 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 19:46:54,588 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 19:46:54,589 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-11 19:46:54,591 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 19:46:54,592 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-11 19:46:54,594 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-03-11 19:46:54,595 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1948258503] [2021-03-11 19:46:54,595 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 19:46:54,595 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-11 19:46:54,595 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [932587660] [2021-03-11 19:46:54,595 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-03-11 19:46:54,595 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 19:46:54,596 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-03-11 19:46:54,597 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-03-11 19:46:54,597 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 70 out of 116 [2021-03-11 19:46:54,597 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 35 places, 30 transitions, 156 flow. Second operand has 4 states, 4 states have (on average 71.25) internal successors, (285), 4 states have internal predecessors, (285), 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) [2021-03-11 19:46:54,597 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-11 19:46:54,597 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 70 of 116 [2021-03-11 19:46:54,597 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-11 19:46:54,718 INFO L129 PetriNetUnfolder]: 783/1250 cut-off events. [2021-03-11 19:46:54,718 INFO L130 PetriNetUnfolder]: For 1436/2889 co-relation queries the response was YES. [2021-03-11 19:46:54,720 INFO L84 FinitePrefix]: Finished finitePrefix Result has 3919 conditions, 1250 events. 783/1250 cut-off events. For 1436/2889 co-relation queries the response was YES. Maximal size of possible extension queue 112. Compared 6538 event pairs, 142 based on Foata normal form. 8/1003 useless extension candidates. Maximal degree in co-relation 3897. Up to 1035 conditions per place. [2021-03-11 19:46:54,727 INFO L132 encePairwiseOnDemand]: 114/116 looper letters, 33 selfloop transitions, 2 changer transitions 0/41 dead transitions. [2021-03-11 19:46:54,727 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 36 places, 41 transitions, 280 flow [2021-03-11 19:46:54,727 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-11 19:46:54,728 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-03-11 19:46:54,728 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 233 transitions. [2021-03-11 19:46:54,728 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.6695402298850575 [2021-03-11 19:46:54,728 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 233 transitions. [2021-03-11 19:46:54,728 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 233 transitions. [2021-03-11 19:46:54,728 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-11 19:46:54,729 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 233 transitions. [2021-03-11 19:46:54,729 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 77.66666666666667) internal successors, (233), 3 states have internal predecessors, (233), 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) [2021-03-11 19:46:54,730 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 116.0) internal successors, (464), 4 states have internal predecessors, (464), 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) [2021-03-11 19:46:54,730 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 116.0) internal successors, (464), 4 states have internal predecessors, (464), 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) [2021-03-11 19:46:54,730 INFO L185 Difference]: Start difference. First operand has 35 places, 30 transitions, 156 flow. Second operand 3 states and 233 transitions. [2021-03-11 19:46:54,730 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 36 places, 41 transitions, 280 flow [2021-03-11 19:46:54,732 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 34 places, 41 transitions, 256 flow, removed 0 selfloop flow, removed 2 redundant places. [2021-03-11 19:46:54,733 INFO L241 Difference]: Finished difference. Result has 34 places, 29 transitions, 140 flow [2021-03-11 19:46:54,733 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=116, PETRI_DIFFERENCE_MINUEND_FLOW=136, PETRI_DIFFERENCE_MINUEND_PLACES=32, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=29, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=27, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=140, PETRI_PLACES=34, PETRI_TRANSITIONS=29} [2021-03-11 19:46:54,733 INFO L335 CegarLoopForPetriNet]: 30 programPoint places, 4 predicate places. [2021-03-11 19:46:54,733 INFO L480 AbstractCegarLoop]: Abstraction has has 34 places, 29 transitions, 140 flow [2021-03-11 19:46:54,733 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 71.25) internal successors, (285), 4 states have internal predecessors, (285), 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) [2021-03-11 19:46:54,734 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-11 19:46:54,734 INFO L255 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 19:46:54,734 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-03-11 19:46:54,734 INFO L428 AbstractCegarLoop]: === Iteration 4 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-11 19:46:54,734 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 19:46:54,734 INFO L82 PathProgramCache]: Analyzing trace with hash 1251668972, now seen corresponding path program 1 times [2021-03-11 19:46:54,734 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 19:46:54,734 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [251071812] [2021-03-11 19:46:54,734 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 19:46:54,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 19:46:54,754 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 19:46:54,756 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 19:46:54,757 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 19:46:54,757 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-11 19:46:54,759 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 19:46:54,759 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-11 19:46:54,762 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-03-11 19:46:54,762 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [251071812] [2021-03-11 19:46:54,762 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 19:46:54,762 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-11 19:46:54,762 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [284624573] [2021-03-11 19:46:54,762 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-03-11 19:46:54,762 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 19:46:54,763 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-03-11 19:46:54,763 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-03-11 19:46:54,763 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 70 out of 116 [2021-03-11 19:46:54,763 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 34 places, 29 transitions, 140 flow. Second operand has 4 states, 4 states have (on average 71.25) internal successors, (285), 4 states have internal predecessors, (285), 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) [2021-03-11 19:46:54,764 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-11 19:46:54,764 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 70 of 116 [2021-03-11 19:46:54,764 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-11 19:46:54,851 INFO L129 PetriNetUnfolder]: 625/1017 cut-off events. [2021-03-11 19:46:54,851 INFO L130 PetriNetUnfolder]: For 934/2097 co-relation queries the response was YES. [2021-03-11 19:46:54,853 INFO L84 FinitePrefix]: Finished finitePrefix Result has 3076 conditions, 1017 events. 625/1017 cut-off events. For 934/2097 co-relation queries the response was YES. Maximal size of possible extension queue 95. Compared 5104 event pairs, 97 based on Foata normal form. 6/810 useless extension candidates. Maximal degree in co-relation 3036. Up to 835 conditions per place. [2021-03-11 19:46:54,862 INFO L132 encePairwiseOnDemand]: 114/116 looper letters, 31 selfloop transitions, 2 changer transitions 0/39 dead transitions. [2021-03-11 19:46:54,862 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 35 places, 39 transitions, 250 flow [2021-03-11 19:46:54,862 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-11 19:46:54,862 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-03-11 19:46:54,863 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 231 transitions. [2021-03-11 19:46:54,863 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.6637931034482759 [2021-03-11 19:46:54,863 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 231 transitions. [2021-03-11 19:46:54,863 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 231 transitions. [2021-03-11 19:46:54,863 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-11 19:46:54,863 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 231 transitions. [2021-03-11 19:46:54,864 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 77.0) internal successors, (231), 3 states have internal predecessors, (231), 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) [2021-03-11 19:46:54,864 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 116.0) internal successors, (464), 4 states have internal predecessors, (464), 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) [2021-03-11 19:46:54,864 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 116.0) internal successors, (464), 4 states have internal predecessors, (464), 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) [2021-03-11 19:46:54,864 INFO L185 Difference]: Start difference. First operand has 34 places, 29 transitions, 140 flow. Second operand 3 states and 231 transitions. [2021-03-11 19:46:54,864 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 35 places, 39 transitions, 250 flow [2021-03-11 19:46:54,865 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 34 places, 39 transitions, 247 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-03-11 19:46:54,867 INFO L241 Difference]: Finished difference. Result has 34 places, 28 transitions, 138 flow [2021-03-11 19:46:54,867 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=116, PETRI_DIFFERENCE_MINUEND_FLOW=134, PETRI_DIFFERENCE_MINUEND_PLACES=32, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=28, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=26, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=138, PETRI_PLACES=34, PETRI_TRANSITIONS=28} [2021-03-11 19:46:54,867 INFO L335 CegarLoopForPetriNet]: 30 programPoint places, 4 predicate places. [2021-03-11 19:46:54,867 INFO L480 AbstractCegarLoop]: Abstraction has has 34 places, 28 transitions, 138 flow [2021-03-11 19:46:54,867 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 71.25) internal successors, (285), 4 states have internal predecessors, (285), 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) [2021-03-11 19:46:54,867 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-11 19:46:54,868 INFO L255 CegarLoopForPetriNet]: trace histogram [3, 2, 1, 1, 1, 1, 1, 1] [2021-03-11 19:46:54,868 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2021-03-11 19:46:54,868 INFO L428 AbstractCegarLoop]: === Iteration 5 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-11 19:46:54,869 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 19:46:54,869 INFO L82 PathProgramCache]: Analyzing trace with hash 154085002, now seen corresponding path program 1 times [2021-03-11 19:46:54,869 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 19:46:54,869 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1897761012] [2021-03-11 19:46:54,869 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 19:46:54,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 19:46:54,889 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 19:46:54,890 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 19:46:54,890 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 19:46:54,890 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-11 19:46:54,892 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2021-03-11 19:46:54,892 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1897761012] [2021-03-11 19:46:54,892 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 19:46:54,892 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-03-11 19:46:54,894 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1536593278] [2021-03-11 19:46:54,894 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-03-11 19:46:54,894 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 19:46:54,894 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-03-11 19:46:54,895 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-11 19:46:54,895 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 69 out of 116 [2021-03-11 19:46:54,896 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 34 places, 28 transitions, 138 flow. Second operand has 3 states, 3 states have (on average 70.33333333333333) internal successors, (211), 3 states have internal predecessors, (211), 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) [2021-03-11 19:46:54,896 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-11 19:46:54,896 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 69 of 116 [2021-03-11 19:46:54,896 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-11 19:46:55,000 INFO L129 PetriNetUnfolder]: 787/1325 cut-off events. [2021-03-11 19:46:55,000 INFO L130 PetriNetUnfolder]: For 1378/1780 co-relation queries the response was YES. [2021-03-11 19:46:55,003 INFO L84 FinitePrefix]: Finished finitePrefix Result has 4109 conditions, 1325 events. 787/1325 cut-off events. For 1378/1780 co-relation queries the response was YES. Maximal size of possible extension queue 137. Compared 7135 event pairs, 236 based on Foata normal form. 4/1093 useless extension candidates. Maximal degree in co-relation 4088. Up to 890 conditions per place. [2021-03-11 19:46:55,011 INFO L132 encePairwiseOnDemand]: 110/116 looper letters, 24 selfloop transitions, 13 changer transitions 0/43 dead transitions. [2021-03-11 19:46:55,011 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 36 places, 43 transitions, 288 flow [2021-03-11 19:46:55,011 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-11 19:46:55,012 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-03-11 19:46:55,012 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 228 transitions. [2021-03-11 19:46:55,012 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.6551724137931034 [2021-03-11 19:46:55,012 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 228 transitions. [2021-03-11 19:46:55,012 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 228 transitions. [2021-03-11 19:46:55,012 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-11 19:46:55,012 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 228 transitions. [2021-03-11 19:46:55,013 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 76.0) internal successors, (228), 3 states have internal predecessors, (228), 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) [2021-03-11 19:46:55,014 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 116.0) internal successors, (464), 4 states have internal predecessors, (464), 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) [2021-03-11 19:46:55,014 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 116.0) internal successors, (464), 4 states have internal predecessors, (464), 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) [2021-03-11 19:46:55,014 INFO L185 Difference]: Start difference. First operand has 34 places, 28 transitions, 138 flow. Second operand 3 states and 228 transitions. [2021-03-11 19:46:55,014 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 36 places, 43 transitions, 288 flow [2021-03-11 19:46:55,015 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 35 places, 43 transitions, 284 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-03-11 19:46:55,016 INFO L241 Difference]: Finished difference. Result has 37 places, 37 transitions, 262 flow [2021-03-11 19:46:55,017 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=116, PETRI_DIFFERENCE_MINUEND_FLOW=136, PETRI_DIFFERENCE_MINUEND_PLACES=33, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=28, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=15, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=262, PETRI_PLACES=37, PETRI_TRANSITIONS=37} [2021-03-11 19:46:55,017 INFO L335 CegarLoopForPetriNet]: 30 programPoint places, 7 predicate places. [2021-03-11 19:46:55,017 INFO L480 AbstractCegarLoop]: Abstraction has has 37 places, 37 transitions, 262 flow [2021-03-11 19:46:55,017 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 70.33333333333333) internal successors, (211), 3 states have internal predecessors, (211), 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) [2021-03-11 19:46:55,017 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-11 19:46:55,017 INFO L255 CegarLoopForPetriNet]: trace histogram [3, 2, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 19:46:55,017 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2021-03-11 19:46:55,017 INFO L428 AbstractCegarLoop]: === Iteration 6 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-11 19:46:55,017 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 19:46:55,017 INFO L82 PathProgramCache]: Analyzing trace with hash 481670682, now seen corresponding path program 1 times [2021-03-11 19:46:55,018 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 19:46:55,018 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [833407844] [2021-03-11 19:46:55,018 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 19:46:55,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 19:46:55,031 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 19:46:55,032 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 19:46:55,032 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 19:46:55,032 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-11 19:46:55,034 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 19:46:55,034 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-11 19:46:55,038 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2021-03-11 19:46:55,038 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [833407844] [2021-03-11 19:46:55,038 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 19:46:55,038 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-11 19:46:55,038 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [785376955] [2021-03-11 19:46:55,038 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-03-11 19:46:55,038 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 19:46:55,040 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-03-11 19:46:55,041 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-03-11 19:46:55,041 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 69 out of 116 [2021-03-11 19:46:55,041 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 37 places, 37 transitions, 262 flow. Second operand has 4 states, 4 states have (on average 70.25) internal successors, (281), 4 states have internal predecessors, (281), 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) [2021-03-11 19:46:55,042 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-11 19:46:55,042 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 69 of 116 [2021-03-11 19:46:55,042 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-11 19:46:55,141 INFO L129 PetriNetUnfolder]: 624/1075 cut-off events. [2021-03-11 19:46:55,141 INFO L130 PetriNetUnfolder]: For 2171/3131 co-relation queries the response was YES. [2021-03-11 19:46:55,143 INFO L84 FinitePrefix]: Finished finitePrefix Result has 4206 conditions, 1075 events. 624/1075 cut-off events. For 2171/3131 co-relation queries the response was YES. Maximal size of possible extension queue 104. Compared 5667 event pairs, 130 based on Foata normal form. 97/1049 useless extension candidates. Maximal degree in co-relation 4184. Up to 861 conditions per place. [2021-03-11 19:46:55,150 INFO L132 encePairwiseOnDemand]: 114/116 looper letters, 39 selfloop transitions, 4 changer transitions 0/49 dead transitions. [2021-03-11 19:46:55,150 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 38 places, 49 transitions, 424 flow [2021-03-11 19:46:55,150 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-11 19:46:55,150 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-03-11 19:46:55,151 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 226 transitions. [2021-03-11 19:46:55,151 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.6494252873563219 [2021-03-11 19:46:55,151 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 226 transitions. [2021-03-11 19:46:55,151 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 226 transitions. [2021-03-11 19:46:55,151 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-11 19:46:55,151 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 226 transitions. [2021-03-11 19:46:55,152 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 75.33333333333333) internal successors, (226), 3 states have internal predecessors, (226), 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) [2021-03-11 19:46:55,153 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 116.0) internal successors, (464), 4 states have internal predecessors, (464), 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) [2021-03-11 19:46:55,153 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 116.0) internal successors, (464), 4 states have internal predecessors, (464), 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) [2021-03-11 19:46:55,154 INFO L185 Difference]: Start difference. First operand has 37 places, 37 transitions, 262 flow. Second operand 3 states and 226 transitions. [2021-03-11 19:46:55,154 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 38 places, 49 transitions, 424 flow [2021-03-11 19:46:55,157 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 36 places, 49 transitions, 398 flow, removed 0 selfloop flow, removed 2 redundant places. [2021-03-11 19:46:55,158 INFO L241 Difference]: Finished difference. Result has 36 places, 36 transitions, 240 flow [2021-03-11 19:46:55,158 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=116, PETRI_DIFFERENCE_MINUEND_FLOW=232, PETRI_DIFFERENCE_MINUEND_PLACES=34, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=36, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=32, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=240, PETRI_PLACES=36, PETRI_TRANSITIONS=36} [2021-03-11 19:46:55,158 INFO L335 CegarLoopForPetriNet]: 30 programPoint places, 6 predicate places. [2021-03-11 19:46:55,158 INFO L480 AbstractCegarLoop]: Abstraction has has 36 places, 36 transitions, 240 flow [2021-03-11 19:46:55,158 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 70.25) internal successors, (281), 4 states have internal predecessors, (281), 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) [2021-03-11 19:46:55,158 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-11 19:46:55,159 INFO L255 CegarLoopForPetriNet]: trace histogram [4, 3, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 19:46:55,159 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2021-03-11 19:46:55,159 INFO L428 AbstractCegarLoop]: === Iteration 7 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-11 19:46:55,159 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 19:46:55,159 INFO L82 PathProgramCache]: Analyzing trace with hash -1080820256, now seen corresponding path program 1 times [2021-03-11 19:46:55,159 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 19:46:55,159 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [360587238] [2021-03-11 19:46:55,159 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 19:46:55,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 19:46:55,171 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 19:46:55,172 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 19:46:55,172 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 19:46:55,172 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-11 19:46:55,174 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2021-03-11 19:46:55,174 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [360587238] [2021-03-11 19:46:55,174 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 19:46:55,174 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-03-11 19:46:55,174 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2012454330] [2021-03-11 19:46:55,175 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-03-11 19:46:55,175 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 19:46:55,176 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-03-11 19:46:55,176 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-11 19:46:55,176 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 71 out of 116 [2021-03-11 19:46:55,176 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 36 places, 36 transitions, 240 flow. Second operand has 3 states, 3 states have (on average 72.33333333333333) internal successors, (217), 3 states have internal predecessors, (217), 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) [2021-03-11 19:46:55,176 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-11 19:46:55,176 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 71 of 116 [2021-03-11 19:46:55,176 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-11 19:46:55,318 INFO L129 PetriNetUnfolder]: 788/1404 cut-off events. [2021-03-11 19:46:55,318 INFO L130 PetriNetUnfolder]: For 2365/2609 co-relation queries the response was YES. [2021-03-11 19:46:55,321 INFO L84 FinitePrefix]: Finished finitePrefix Result has 5367 conditions, 1404 events. 788/1404 cut-off events. For 2365/2609 co-relation queries the response was YES. Maximal size of possible extension queue 154. Compared 8318 event pairs, 257 based on Foata normal form. 10/1308 useless extension candidates. Maximal degree in co-relation 5345. Up to 989 conditions per place. [2021-03-11 19:46:55,336 INFO L132 encePairwiseOnDemand]: 110/116 looper letters, 28 selfloop transitions, 21 changer transitions 0/55 dead transitions. [2021-03-11 19:46:55,336 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 38 places, 55 transitions, 476 flow [2021-03-11 19:46:55,336 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-11 19:46:55,336 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-03-11 19:46:55,337 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 232 transitions. [2021-03-11 19:46:55,337 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.6666666666666666 [2021-03-11 19:46:55,337 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 232 transitions. [2021-03-11 19:46:55,337 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 232 transitions. [2021-03-11 19:46:55,337 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-11 19:46:55,337 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 232 transitions. [2021-03-11 19:46:55,338 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 77.33333333333333) internal successors, (232), 3 states have internal predecessors, (232), 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) [2021-03-11 19:46:55,338 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 116.0) internal successors, (464), 4 states have internal predecessors, (464), 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) [2021-03-11 19:46:55,339 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 116.0) internal successors, (464), 4 states have internal predecessors, (464), 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) [2021-03-11 19:46:55,340 INFO L185 Difference]: Start difference. First operand has 36 places, 36 transitions, 240 flow. Second operand 3 states and 232 transitions. [2021-03-11 19:46:55,340 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 38 places, 55 transitions, 476 flow [2021-03-11 19:46:55,341 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 37 places, 55 transitions, 468 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-03-11 19:46:55,342 INFO L241 Difference]: Finished difference. Result has 39 places, 49 transitions, 458 flow [2021-03-11 19:46:55,343 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=116, PETRI_DIFFERENCE_MINUEND_FLOW=236, PETRI_DIFFERENCE_MINUEND_PLACES=35, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=36, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=15, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=458, PETRI_PLACES=39, PETRI_TRANSITIONS=49} [2021-03-11 19:46:55,343 INFO L335 CegarLoopForPetriNet]: 30 programPoint places, 9 predicate places. [2021-03-11 19:46:55,343 INFO L480 AbstractCegarLoop]: Abstraction has has 39 places, 49 transitions, 458 flow [2021-03-11 19:46:55,343 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 72.33333333333333) internal successors, (217), 3 states have internal predecessors, (217), 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) [2021-03-11 19:46:55,343 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-11 19:46:55,343 INFO L255 CegarLoopForPetriNet]: trace histogram [5, 4, 1, 1, 1, 1, 1, 1] [2021-03-11 19:46:55,343 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2021-03-11 19:46:55,344 INFO L428 AbstractCegarLoop]: === Iteration 8 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-11 19:46:55,344 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 19:46:55,344 INFO L82 PathProgramCache]: Analyzing trace with hash 854197721, now seen corresponding path program 1 times [2021-03-11 19:46:55,344 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 19:46:55,344 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [553739225] [2021-03-11 19:46:55,344 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 19:46:55,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-03-11 19:46:55,352 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-03-11 19:46:55,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-03-11 19:46:55,362 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-03-11 19:46:55,371 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-03-11 19:46:55,371 INFO L620 BasicCegarLoop]: Counterexample might be feasible [2021-03-11 19:46:55,371 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2021-03-11 19:46:55,372 WARN L342 ceAbstractionStarter]: 4 thread instances were not sufficient, I will increase this number and restart the analysis [2021-03-11 19:46:55,373 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 5 thread instances. [2021-03-11 19:46:55,383 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:46:55,383 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:46:55,383 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:46:55,383 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:46:55,384 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:46:55,384 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:46:55,384 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:46:55,384 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:46:55,384 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:46:55,384 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:46:55,384 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:46:55,384 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of5ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:46:55,384 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:46:55,384 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of5ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:46:55,384 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:46:55,384 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:46:55,384 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of5ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:46:55,384 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of5ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:46:55,384 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of5ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:46:55,385 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of5ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:46:55,385 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of5ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:46:55,385 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of5ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:46:55,385 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of5ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:46:55,385 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of5ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:46:55,385 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:46:55,385 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:46:55,385 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:46:55,385 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:46:55,386 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:46:55,386 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:46:55,386 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:46:55,387 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:46:55,387 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:46:55,387 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:46:55,387 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:46:55,387 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:46:55,387 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:46:55,387 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:46:55,387 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:46:55,387 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of5ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:46:55,387 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:46:55,387 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of5ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:46:55,387 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:46:55,387 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:46:55,387 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of5ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:46:55,387 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of5ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:46:55,388 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of5ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:46:55,388 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of5ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:46:55,388 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of5ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:46:55,388 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of5ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:46:55,388 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of5ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:46:55,388 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of5ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:46:55,388 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:46:55,388 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:46:55,388 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:46:55,388 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:46:55,388 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:46:55,388 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:46:55,388 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:46:55,388 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:46:55,389 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:46:55,389 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:46:55,389 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:46:55,389 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:46:55,389 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:46:55,389 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:46:55,389 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:46:55,389 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of5ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:46:55,389 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:46:55,389 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of5ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:46:55,390 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:46:55,390 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:46:55,390 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of5ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:46:55,390 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of5ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:46:55,390 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of5ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:46:55,390 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of5ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:46:55,390 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of5ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:46:55,390 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of5ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:46:55,390 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of5ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:46:55,393 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of5ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:46:55,393 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:46:55,393 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:46:55,394 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:46:55,394 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:46:55,394 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:46:55,394 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:46:55,394 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:46:55,394 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:46:55,394 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:46:55,395 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:46:55,395 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:46:55,395 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:46:55,395 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:46:55,395 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:46:55,395 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:46:55,395 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of5ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:46:55,395 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:46:55,395 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of5ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:46:55,395 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:46:55,395 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:46:55,395 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of5ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:46:55,395 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of5ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:46:55,395 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of5ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:46:55,395 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of5ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:46:55,395 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of5ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:46:55,396 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of5ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:46:55,396 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of5ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:46:55,396 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of5ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:46:55,396 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:46:55,396 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:46:55,396 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:46:55,396 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:46:55,396 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:46:55,396 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:46:55,397 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:46:55,397 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:46:55,397 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:46:55,397 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:46:55,397 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:46:55,397 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:46:55,397 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:46:55,397 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:46:55,397 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:46:55,397 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of5ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:46:55,397 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:46:55,397 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of5ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:46:55,397 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:46:55,397 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:46:55,397 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of5ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:46:55,397 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of5ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:46:55,397 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of5ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:46:55,398 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of5ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:46:55,398 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of5ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:46:55,398 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of5ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:46:55,398 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of5ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:46:55,398 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of5ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:46:55,398 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:46:55,398 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:46:55,398 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:46:55,398 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:46:55,398 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:46:55,398 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of5ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:46:55,399 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:46:55,399 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:46:55,399 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:46:55,399 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:46:55,400 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:46:55,400 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:46:55,400 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of5ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:46:55,400 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:46:55,400 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:46:55,400 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:46:55,401 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:46:55,401 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:46:55,401 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:46:55,402 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of5ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:46:55,402 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:46:55,402 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:46:55,403 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:46:55,403 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:46:55,403 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of5ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:46:55,403 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:46:55,403 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:46:55,403 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:46:55,404 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:46:55,404 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of5ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:46:55,404 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:46:55,404 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:46:55,404 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:46:55,404 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:46:55,405 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-03-11 19:46:55,405 INFO L253 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2021-03-11 19:46:55,407 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-03-11 19:46:55,407 INFO L377 AbstractCegarLoop]: Hoare is false [2021-03-11 19:46:55,407 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-03-11 19:46:55,407 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-03-11 19:46:55,407 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-03-11 19:46:55,407 INFO L381 AbstractCegarLoop]: Difference is false [2021-03-11 19:46:55,407 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-03-11 19:46:55,407 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-03-11 19:46:55,409 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 89 places, 79 transitions, 203 flow [2021-03-11 19:46:55,419 INFO L129 PetriNetUnfolder]: 6/123 cut-off events. [2021-03-11 19:46:55,419 INFO L130 PetriNetUnfolder]: For 30/30 co-relation queries the response was YES. [2021-03-11 19:46:55,420 INFO L84 FinitePrefix]: Finished finitePrefix Result has 154 conditions, 123 events. 6/123 cut-off events. For 30/30 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 303 event pairs, 0 based on Foata normal form. 0/106 useless extension candidates. Maximal degree in co-relation 116. Up to 12 conditions per place. [2021-03-11 19:46:55,420 INFO L82 GeneralOperation]: Start removeDead. Operand has 89 places, 79 transitions, 203 flow [2021-03-11 19:46:55,421 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 89 places, 79 transitions, 203 flow [2021-03-11 19:46:55,421 INFO L118 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-03-11 19:46:55,421 INFO L133 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 89 places, 79 transitions, 203 flow [2021-03-11 19:46:55,422 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 89 places, 79 transitions, 203 flow [2021-03-11 19:46:55,422 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 89 places, 79 transitions, 203 flow [2021-03-11 19:46:55,430 INFO L129 PetriNetUnfolder]: 6/123 cut-off events. [2021-03-11 19:46:55,431 INFO L130 PetriNetUnfolder]: For 30/30 co-relation queries the response was YES. [2021-03-11 19:46:55,431 INFO L84 FinitePrefix]: Finished finitePrefix Result has 154 conditions, 123 events. 6/123 cut-off events. For 30/30 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 323 event pairs, 0 based on Foata normal form. 0/106 useless extension candidates. Maximal degree in co-relation 116. Up to 12 conditions per place. [2021-03-11 19:46:55,434 INFO L116 LiptonReduction]: Number of co-enabled transitions 3200 [2021-03-11 19:46:56,985 INFO L131 LiptonReduction]: Checked pairs total: 5645 [2021-03-11 19:46:56,985 INFO L133 LiptonReduction]: Total number of compositions: 55 [2021-03-11 19:46:56,985 INFO L182 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 1564 [2021-03-11 19:46:56,987 INFO L129 PetriNetUnfolder]: 0/6 cut-off events. [2021-03-11 19:46:56,987 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-11 19:46:56,987 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-11 19:46:56,987 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2021-03-11 19:46:56,987 INFO L428 AbstractCegarLoop]: === Iteration 1 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-11 19:46:56,987 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 19:46:56,987 INFO L82 PathProgramCache]: Analyzing trace with hash 604526396, now seen corresponding path program 1 times [2021-03-11 19:46:56,988 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 19:46:56,988 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [551965254] [2021-03-11 19:46:56,988 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 19:46:56,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 19:46:56,998 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 19:46:56,998 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 19:46:56,998 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 19:46:56,998 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-11 19:46:57,001 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 19:46:57,001 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [551965254] [2021-03-11 19:46:57,001 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 19:46:57,001 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-03-11 19:46:57,001 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1047344061] [2021-03-11 19:46:57,001 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-03-11 19:46:57,001 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 19:46:57,002 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-03-11 19:46:57,002 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-11 19:46:57,002 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 83 out of 134 [2021-03-11 19:46:57,002 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 36 places, 25 transitions, 95 flow. Second operand has 3 states, 3 states have (on average 84.33333333333333) internal successors, (253), 3 states have internal predecessors, (253), 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) [2021-03-11 19:46:57,002 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-11 19:46:57,002 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 83 of 134 [2021-03-11 19:46:57,002 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-11 19:46:57,322 INFO L129 PetriNetUnfolder]: 4086/5636 cut-off events. [2021-03-11 19:46:57,322 INFO L130 PetriNetUnfolder]: For 31/31 co-relation queries the response was YES. [2021-03-11 19:46:57,331 INFO L84 FinitePrefix]: Finished finitePrefix Result has 11288 conditions, 5636 events. 4086/5636 cut-off events. For 31/31 co-relation queries the response was YES. Maximal size of possible extension queue 361. Compared 29225 event pairs, 2222 based on Foata normal form. 1542/5269 useless extension candidates. Maximal degree in co-relation 11238. Up to 3830 conditions per place. [2021-03-11 19:46:57,356 INFO L132 encePairwiseOnDemand]: 126/134 looper letters, 24 selfloop transitions, 6 changer transitions 0/37 dead transitions. [2021-03-11 19:46:57,356 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 37 places, 37 transitions, 179 flow [2021-03-11 19:46:57,357 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-11 19:46:57,357 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-03-11 19:46:57,357 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 282 transitions. [2021-03-11 19:46:57,357 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.7014925373134329 [2021-03-11 19:46:57,357 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 282 transitions. [2021-03-11 19:46:57,357 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 282 transitions. [2021-03-11 19:46:57,358 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-11 19:46:57,358 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 282 transitions. [2021-03-11 19:46:57,358 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 94.0) internal successors, (282), 3 states have internal predecessors, (282), 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) [2021-03-11 19:46:57,359 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) [2021-03-11 19:46:57,359 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) [2021-03-11 19:46:57,359 INFO L185 Difference]: Start difference. First operand has 36 places, 25 transitions, 95 flow. Second operand 3 states and 282 transitions. [2021-03-11 19:46:57,359 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 37 places, 37 transitions, 179 flow [2021-03-11 19:46:57,359 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 37 places, 37 transitions, 159 flow, removed 10 selfloop flow, removed 0 redundant places. [2021-03-11 19:46:57,360 INFO L241 Difference]: Finished difference. Result has 39 places, 29 transitions, 119 flow [2021-03-11 19:46:57,360 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=134, PETRI_DIFFERENCE_MINUEND_FLOW=73, PETRI_DIFFERENCE_MINUEND_PLACES=35, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=24, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=18, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=119, PETRI_PLACES=39, PETRI_TRANSITIONS=29} [2021-03-11 19:46:57,360 INFO L335 CegarLoopForPetriNet]: 36 programPoint places, 3 predicate places. [2021-03-11 19:46:57,360 INFO L480 AbstractCegarLoop]: Abstraction has has 39 places, 29 transitions, 119 flow [2021-03-11 19:46:57,360 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 84.33333333333333) internal successors, (253), 3 states have internal predecessors, (253), 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) [2021-03-11 19:46:57,360 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-11 19:46:57,360 INFO L255 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1] [2021-03-11 19:46:57,361 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2021-03-11 19:46:57,361 INFO L428 AbstractCegarLoop]: === Iteration 2 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-11 19:46:57,361 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 19:46:57,361 INFO L82 PathProgramCache]: Analyzing trace with hash 530801875, now seen corresponding path program 1 times [2021-03-11 19:46:57,361 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 19:46:57,361 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [256103463] [2021-03-11 19:46:57,361 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 19:46:57,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 19:46:57,371 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 19:46:57,372 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 19:46:57,372 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 19:46:57,372 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-11 19:46:57,375 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-03-11 19:46:57,376 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [256103463] [2021-03-11 19:46:57,376 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 19:46:57,376 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-03-11 19:46:57,376 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [202212236] [2021-03-11 19:46:57,376 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-03-11 19:46:57,376 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 19:46:57,376 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-03-11 19:46:57,376 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-11 19:46:57,377 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 82 out of 134 [2021-03-11 19:46:57,377 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 39 places, 29 transitions, 119 flow. Second operand has 3 states, 3 states have (on average 83.33333333333333) internal successors, (250), 3 states have internal predecessors, (250), 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) [2021-03-11 19:46:57,377 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-11 19:46:57,377 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 82 of 134 [2021-03-11 19:46:57,377 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-11 19:46:57,795 INFO L129 PetriNetUnfolder]: 5695/7939 cut-off events. [2021-03-11 19:46:57,795 INFO L130 PetriNetUnfolder]: For 5201/12034 co-relation queries the response was YES. [2021-03-11 19:46:57,816 INFO L84 FinitePrefix]: Finished finitePrefix Result has 20789 conditions, 7939 events. 5695/7939 cut-off events. For 5201/12034 co-relation queries the response was YES. Maximal size of possible extension queue 499. Compared 42978 event pairs, 2414 based on Foata normal form. 1/5741 useless extension candidates. Maximal degree in co-relation 20750. Up to 5467 conditions per place. [2021-03-11 19:46:57,859 INFO L132 encePairwiseOnDemand]: 127/134 looper letters, 29 selfloop transitions, 10 changer transitions 0/46 dead transitions. [2021-03-11 19:46:57,859 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 41 places, 46 transitions, 261 flow [2021-03-11 19:46:57,859 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-11 19:46:57,859 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-03-11 19:46:57,860 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 277 transitions. [2021-03-11 19:46:57,860 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.6890547263681592 [2021-03-11 19:46:57,860 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 277 transitions. [2021-03-11 19:46:57,860 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 277 transitions. [2021-03-11 19:46:57,860 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-11 19:46:57,860 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 277 transitions. [2021-03-11 19:46:57,861 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 92.33333333333333) internal successors, (277), 3 states have internal predecessors, (277), 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) [2021-03-11 19:46:57,861 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) [2021-03-11 19:46:57,862 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) [2021-03-11 19:46:57,862 INFO L185 Difference]: Start difference. First operand has 39 places, 29 transitions, 119 flow. Second operand 3 states and 277 transitions. [2021-03-11 19:46:57,862 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 41 places, 46 transitions, 261 flow [2021-03-11 19:46:57,879 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 39 places, 46 transitions, 239 flow, removed 0 selfloop flow, removed 2 redundant places. [2021-03-11 19:46:57,880 INFO L241 Difference]: Finished difference. Result has 41 places, 37 transitions, 195 flow [2021-03-11 19:46:57,880 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=134, PETRI_DIFFERENCE_MINUEND_FLOW=107, PETRI_DIFFERENCE_MINUEND_PLACES=37, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=29, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=19, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=195, PETRI_PLACES=41, PETRI_TRANSITIONS=37} [2021-03-11 19:46:57,880 INFO L335 CegarLoopForPetriNet]: 36 programPoint places, 5 predicate places. [2021-03-11 19:46:57,880 INFO L480 AbstractCegarLoop]: Abstraction has has 41 places, 37 transitions, 195 flow [2021-03-11 19:46:57,880 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 83.33333333333333) internal successors, (250), 3 states have internal predecessors, (250), 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) [2021-03-11 19:46:57,880 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-11 19:46:57,880 INFO L255 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 19:46:57,880 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2021-03-11 19:46:57,880 INFO L428 AbstractCegarLoop]: === Iteration 3 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-11 19:46:57,881 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 19:46:57,881 INFO L82 PathProgramCache]: Analyzing trace with hash -725013214, now seen corresponding path program 1 times [2021-03-11 19:46:57,881 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 19:46:57,881 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1551281107] [2021-03-11 19:46:57,881 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 19:46:57,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 19:46:57,891 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 19:46:57,891 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 19:46:57,891 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 19:46:57,892 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-11 19:46:57,894 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 19:46:57,894 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-11 19:46:57,897 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-03-11 19:46:57,897 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1551281107] [2021-03-11 19:46:57,897 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 19:46:57,897 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-11 19:46:57,897 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1509258474] [2021-03-11 19:46:57,897 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-03-11 19:46:57,897 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 19:46:57,897 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-03-11 19:46:57,897 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-03-11 19:46:57,898 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 83 out of 134 [2021-03-11 19:46:57,898 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 41 places, 37 transitions, 195 flow. Second operand has 4 states, 4 states have (on average 84.25) internal successors, (337), 4 states have internal predecessors, (337), 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) [2021-03-11 19:46:57,898 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-11 19:46:57,898 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 83 of 134 [2021-03-11 19:46:57,898 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-11 19:46:58,269 INFO L129 PetriNetUnfolder]: 4588/6450 cut-off events. [2021-03-11 19:46:58,269 INFO L130 PetriNetUnfolder]: For 6847/26864 co-relation queries the response was YES. [2021-03-11 19:46:58,289 INFO L84 FinitePrefix]: Finished finitePrefix Result has 19810 conditions, 6450 events. 4588/6450 cut-off events. For 6847/26864 co-relation queries the response was YES. Maximal size of possible extension queue 394. Compared 35404 event pairs, 770 based on Foata normal form. 10/4950 useless extension candidates. Maximal degree in co-relation 19787. Up to 5323 conditions per place. [2021-03-11 19:46:58,328 INFO L132 encePairwiseOnDemand]: 132/134 looper letters, 43 selfloop transitions, 2 changer transitions 0/52 dead transitions. [2021-03-11 19:46:58,328 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 42 places, 52 transitions, 357 flow [2021-03-11 19:46:58,329 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-11 19:46:58,329 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-03-11 19:46:58,329 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 278 transitions. [2021-03-11 19:46:58,329 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.6915422885572139 [2021-03-11 19:46:58,329 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 278 transitions. [2021-03-11 19:46:58,329 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 278 transitions. [2021-03-11 19:46:58,330 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-11 19:46:58,330 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 278 transitions. [2021-03-11 19:46:58,331 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 92.66666666666667) internal successors, (278), 3 states have internal predecessors, (278), 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) [2021-03-11 19:46:58,331 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) [2021-03-11 19:46:58,331 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) [2021-03-11 19:46:58,331 INFO L185 Difference]: Start difference. First operand has 41 places, 37 transitions, 195 flow. Second operand 3 states and 278 transitions. [2021-03-11 19:46:58,331 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 42 places, 52 transitions, 357 flow [2021-03-11 19:46:58,342 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 40 places, 52 transitions, 327 flow, removed 0 selfloop flow, removed 2 redundant places. [2021-03-11 19:46:58,344 INFO L241 Difference]: Finished difference. Result has 40 places, 36 transitions, 175 flow [2021-03-11 19:46:58,345 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=134, PETRI_DIFFERENCE_MINUEND_FLOW=171, PETRI_DIFFERENCE_MINUEND_PLACES=38, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=36, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=34, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=175, PETRI_PLACES=40, PETRI_TRANSITIONS=36} [2021-03-11 19:46:58,345 INFO L335 CegarLoopForPetriNet]: 36 programPoint places, 4 predicate places. [2021-03-11 19:46:58,345 INFO L480 AbstractCegarLoop]: Abstraction has has 40 places, 36 transitions, 175 flow [2021-03-11 19:46:58,345 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 84.25) internal successors, (337), 4 states have internal predecessors, (337), 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) [2021-03-11 19:46:58,345 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-11 19:46:58,345 INFO L255 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 19:46:58,345 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2021-03-11 19:46:58,345 INFO L428 AbstractCegarLoop]: === Iteration 4 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-11 19:46:58,346 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 19:46:58,346 INFO L82 PathProgramCache]: Analyzing trace with hash -725007644, now seen corresponding path program 1 times [2021-03-11 19:46:58,347 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 19:46:58,347 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [9697622] [2021-03-11 19:46:58,347 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 19:46:58,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 19:46:58,356 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 19:46:58,357 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 19:46:58,357 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 19:46:58,357 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-11 19:46:58,359 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 19:46:58,360 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-11 19:46:58,362 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-03-11 19:46:58,362 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [9697622] [2021-03-11 19:46:58,362 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 19:46:58,362 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-11 19:46:58,363 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [558431245] [2021-03-11 19:46:58,364 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-03-11 19:46:58,364 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 19:46:58,364 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-03-11 19:46:58,364 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-03-11 19:46:58,364 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 82 out of 134 [2021-03-11 19:46:58,365 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 40 places, 36 transitions, 175 flow. Second operand has 4 states, 4 states have (on average 83.25) internal successors, (333), 4 states have internal predecessors, (333), 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) [2021-03-11 19:46:58,365 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-11 19:46:58,365 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 82 of 134 [2021-03-11 19:46:58,365 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-11 19:46:58,622 INFO L129 PetriNetUnfolder]: 3689/5236 cut-off events. [2021-03-11 19:46:58,622 INFO L130 PetriNetUnfolder]: For 4507/18958 co-relation queries the response was YES. [2021-03-11 19:46:58,638 INFO L84 FinitePrefix]: Finished finitePrefix Result has 15483 conditions, 5236 events. 3689/5236 cut-off events. For 4507/18958 co-relation queries the response was YES. Maximal size of possible extension queue 316. Compared 28249 event pairs, 585 based on Foata normal form. 8/3989 useless extension candidates. Maximal degree in co-relation 15442. Up to 4309 conditions per place. [2021-03-11 19:46:58,697 INFO L132 encePairwiseOnDemand]: 132/134 looper letters, 41 selfloop transitions, 2 changer transitions 0/50 dead transitions. [2021-03-11 19:46:58,697 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 41 places, 50 transitions, 321 flow [2021-03-11 19:46:58,697 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-11 19:46:58,698 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-03-11 19:46:58,698 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 273 transitions. [2021-03-11 19:46:58,698 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.6791044776119403 [2021-03-11 19:46:58,698 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 273 transitions. [2021-03-11 19:46:58,698 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 273 transitions. [2021-03-11 19:46:58,698 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-11 19:46:58,698 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 273 transitions. [2021-03-11 19:46:58,699 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 91.0) internal successors, (273), 3 states have internal predecessors, (273), 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) [2021-03-11 19:46:58,699 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) [2021-03-11 19:46:58,700 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) [2021-03-11 19:46:58,700 INFO L185 Difference]: Start difference. First operand has 40 places, 36 transitions, 175 flow. Second operand 3 states and 273 transitions. [2021-03-11 19:46:58,700 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 41 places, 50 transitions, 321 flow [2021-03-11 19:46:58,701 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 40 places, 50 transitions, 318 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-03-11 19:46:58,701 INFO L241 Difference]: Finished difference. Result has 40 places, 35 transitions, 173 flow [2021-03-11 19:46:58,702 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=134, PETRI_DIFFERENCE_MINUEND_FLOW=169, PETRI_DIFFERENCE_MINUEND_PLACES=38, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=35, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=33, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=173, PETRI_PLACES=40, PETRI_TRANSITIONS=35} [2021-03-11 19:46:58,702 INFO L335 CegarLoopForPetriNet]: 36 programPoint places, 4 predicate places. [2021-03-11 19:46:58,702 INFO L480 AbstractCegarLoop]: Abstraction has has 40 places, 35 transitions, 173 flow [2021-03-11 19:46:58,702 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 83.25) internal successors, (333), 4 states have internal predecessors, (333), 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) [2021-03-11 19:46:58,702 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-11 19:46:58,702 INFO L255 CegarLoopForPetriNet]: trace histogram [3, 2, 1, 1, 1, 1, 1, 1] [2021-03-11 19:46:58,702 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2021-03-11 19:46:58,703 INFO L428 AbstractCegarLoop]: === Iteration 5 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-11 19:46:58,703 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 19:46:58,703 INFO L82 PathProgramCache]: Analyzing trace with hash -1073357184, now seen corresponding path program 1 times [2021-03-11 19:46:58,703 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 19:46:58,703 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [538771628] [2021-03-11 19:46:58,703 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 19:46:58,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 19:46:58,713 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 19:46:58,713 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 19:46:58,714 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 19:46:58,714 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-11 19:46:58,716 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2021-03-11 19:46:58,716 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [538771628] [2021-03-11 19:46:58,716 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 19:46:58,716 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-03-11 19:46:58,716 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [996040992] [2021-03-11 19:46:58,717 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-03-11 19:46:58,717 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 19:46:58,717 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-03-11 19:46:58,717 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-11 19:46:58,717 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 80 out of 134 [2021-03-11 19:46:58,718 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 40 places, 35 transitions, 173 flow. Second operand has 3 states, 3 states have (on average 81.33333333333333) internal successors, (244), 3 states have internal predecessors, (244), 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) [2021-03-11 19:46:58,718 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-11 19:46:58,718 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 80 of 134 [2021-03-11 19:46:58,718 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-11 19:46:59,044 INFO L129 PetriNetUnfolder]: 4904/7077 cut-off events. [2021-03-11 19:46:59,044 INFO L130 PetriNetUnfolder]: For 7935/23737 co-relation queries the response was YES. [2021-03-11 19:46:59,071 INFO L84 FinitePrefix]: Finished finitePrefix Result has 21288 conditions, 7077 events. 4904/7077 cut-off events. For 7935/23737 co-relation queries the response was YES. Maximal size of possible extension queue 453. Compared 39462 event pairs, 1712 based on Foata normal form. 4/5513 useless extension candidates. Maximal degree in co-relation 21266. Up to 4999 conditions per place. [2021-03-11 19:46:59,111 INFO L132 encePairwiseOnDemand]: 127/134 looper letters, 32 selfloop transitions, 17 changer transitions 0/56 dead transitions. [2021-03-11 19:46:59,112 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 42 places, 56 transitions, 375 flow [2021-03-11 19:46:59,112 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-11 19:46:59,112 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-03-11 19:46:59,112 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 267 transitions. [2021-03-11 19:46:59,113 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.664179104477612 [2021-03-11 19:46:59,113 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 267 transitions. [2021-03-11 19:46:59,113 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 267 transitions. [2021-03-11 19:46:59,113 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-11 19:46:59,113 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 267 transitions. [2021-03-11 19:46:59,113 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 89.0) internal successors, (267), 3 states have internal predecessors, (267), 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) [2021-03-11 19:46:59,114 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) [2021-03-11 19:46:59,114 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) [2021-03-11 19:46:59,114 INFO L185 Difference]: Start difference. First operand has 40 places, 35 transitions, 173 flow. Second operand 3 states and 267 transitions. [2021-03-11 19:46:59,114 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 42 places, 56 transitions, 375 flow [2021-03-11 19:46:59,115 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 41 places, 56 transitions, 371 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-03-11 19:46:59,116 INFO L241 Difference]: Finished difference. Result has 43 places, 48 transitions, 345 flow [2021-03-11 19:46:59,116 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=134, PETRI_DIFFERENCE_MINUEND_FLOW=171, PETRI_DIFFERENCE_MINUEND_PLACES=39, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=35, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=18, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=345, PETRI_PLACES=43, PETRI_TRANSITIONS=48} [2021-03-11 19:46:59,116 INFO L335 CegarLoopForPetriNet]: 36 programPoint places, 7 predicate places. [2021-03-11 19:46:59,116 INFO L480 AbstractCegarLoop]: Abstraction has has 43 places, 48 transitions, 345 flow [2021-03-11 19:46:59,117 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 81.33333333333333) internal successors, (244), 3 states have internal predecessors, (244), 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) [2021-03-11 19:46:59,117 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-11 19:46:59,117 INFO L255 CegarLoopForPetriNet]: trace histogram [3, 2, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 19:46:59,117 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2021-03-11 19:46:59,117 INFO L428 AbstractCegarLoop]: === Iteration 6 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-11 19:46:59,117 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 19:46:59,117 INFO L82 PathProgramCache]: Analyzing trace with hash 1085668479, now seen corresponding path program 1 times [2021-03-11 19:46:59,117 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 19:46:59,117 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1117629957] [2021-03-11 19:46:59,117 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 19:46:59,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 19:46:59,130 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 19:46:59,131 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 19:46:59,131 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 19:46:59,131 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-11 19:46:59,134 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 19:46:59,134 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-11 19:46:59,136 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2021-03-11 19:46:59,137 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1117629957] [2021-03-11 19:46:59,137 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 19:46:59,137 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-11 19:46:59,137 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1504263666] [2021-03-11 19:46:59,137 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-03-11 19:46:59,137 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 19:46:59,137 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-03-11 19:46:59,137 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-03-11 19:46:59,138 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 80 out of 134 [2021-03-11 19:46:59,141 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 43 places, 48 transitions, 345 flow. Second operand has 4 states, 4 states have (on average 81.25) internal successors, (325), 4 states have internal predecessors, (325), 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) [2021-03-11 19:46:59,141 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-11 19:46:59,141 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 80 of 134 [2021-03-11 19:46:59,141 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-11 19:46:59,431 INFO L129 PetriNetUnfolder]: 3910/5708 cut-off events. [2021-03-11 19:46:59,432 INFO L130 PetriNetUnfolder]: For 12276/46992 co-relation queries the response was YES. [2021-03-11 19:46:59,451 INFO L84 FinitePrefix]: Finished finitePrefix Result has 21427 conditions, 5708 events. 3910/5708 cut-off events. For 12276/46992 co-relation queries the response was YES. Maximal size of possible extension queue 356. Compared 31492 event pairs, 701 based on Foata normal form. 389/5114 useless extension candidates. Maximal degree in co-relation 21404. Up to 4659 conditions per place. [2021-03-11 19:46:59,480 INFO L132 encePairwiseOnDemand]: 132/134 looper letters, 56 selfloop transitions, 4 changer transitions 0/67 dead transitions. [2021-03-11 19:46:59,480 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 44 places, 67 transitions, 585 flow [2021-03-11 19:46:59,481 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-11 19:46:59,481 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-03-11 19:46:59,481 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 265 transitions. [2021-03-11 19:46:59,481 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.6592039800995025 [2021-03-11 19:46:59,481 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 265 transitions. [2021-03-11 19:46:59,481 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 265 transitions. [2021-03-11 19:46:59,482 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-11 19:46:59,482 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 265 transitions. [2021-03-11 19:46:59,482 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 88.33333333333333) internal successors, (265), 3 states have internal predecessors, (265), 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) [2021-03-11 19:46:59,483 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) [2021-03-11 19:46:59,483 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) [2021-03-11 19:46:59,483 INFO L185 Difference]: Start difference. First operand has 43 places, 48 transitions, 345 flow. Second operand 3 states and 265 transitions. [2021-03-11 19:46:59,483 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 44 places, 67 transitions, 585 flow [2021-03-11 19:46:59,491 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 42 places, 67 transitions, 551 flow, removed 0 selfloop flow, removed 2 redundant places. [2021-03-11 19:46:59,492 INFO L241 Difference]: Finished difference. Result has 42 places, 47 transitions, 315 flow [2021-03-11 19:46:59,492 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=134, PETRI_DIFFERENCE_MINUEND_FLOW=307, PETRI_DIFFERENCE_MINUEND_PLACES=40, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=47, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=43, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=315, PETRI_PLACES=42, PETRI_TRANSITIONS=47} [2021-03-11 19:46:59,492 INFO L335 CegarLoopForPetriNet]: 36 programPoint places, 6 predicate places. [2021-03-11 19:46:59,492 INFO L480 AbstractCegarLoop]: Abstraction has has 42 places, 47 transitions, 315 flow [2021-03-11 19:46:59,492 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 81.25) internal successors, (325), 4 states have internal predecessors, (325), 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) [2021-03-11 19:46:59,492 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-11 19:46:59,493 INFO L255 CegarLoopForPetriNet]: trace histogram [4, 3, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 19:46:59,493 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2021-03-11 19:46:59,493 INFO L428 AbstractCegarLoop]: === Iteration 7 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-11 19:46:59,493 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 19:46:59,493 INFO L82 PathProgramCache]: Analyzing trace with hash -476299569, now seen corresponding path program 1 times [2021-03-11 19:46:59,493 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 19:46:59,493 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [966567323] [2021-03-11 19:46:59,493 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 19:46:59,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 19:46:59,504 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 19:46:59,504 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 19:46:59,505 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 19:46:59,506 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-11 19:46:59,508 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2021-03-11 19:46:59,508 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [966567323] [2021-03-11 19:46:59,509 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 19:46:59,509 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-03-11 19:46:59,509 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [209738625] [2021-03-11 19:46:59,509 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-03-11 19:46:59,509 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 19:46:59,509 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-03-11 19:46:59,510 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-11 19:46:59,510 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 81 out of 134 [2021-03-11 19:46:59,510 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 42 places, 47 transitions, 315 flow. Second operand has 3 states, 3 states have (on average 82.33333333333333) internal successors, (247), 3 states have internal predecessors, (247), 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) [2021-03-11 19:46:59,510 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-11 19:46:59,510 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 81 of 134 [2021-03-11 19:46:59,510 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-11 19:46:59,905 INFO L129 PetriNetUnfolder]: 5049/7540 cut-off events. [2021-03-11 19:46:59,905 INFO L130 PetriNetUnfolder]: For 14505/17248 co-relation queries the response was YES. [2021-03-11 19:46:59,934 INFO L84 FinitePrefix]: Finished finitePrefix Result has 27039 conditions, 7540 events. 5049/7540 cut-off events. For 14505/17248 co-relation queries the response was YES. Maximal size of possible extension queue 507. Compared 44654 event pairs, 1447 based on Foata normal form. 21/6479 useless extension candidates. Maximal degree in co-relation 27016. Up to 5402 conditions per place. [2021-03-11 19:46:59,969 INFO L132 encePairwiseOnDemand]: 127/134 looper letters, 40 selfloop transitions, 29 changer transitions 0/76 dead transitions. [2021-03-11 19:46:59,970 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 44 places, 76 transitions, 659 flow [2021-03-11 19:46:59,970 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-11 19:46:59,970 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-03-11 19:46:59,971 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 268 transitions. [2021-03-11 19:46:59,971 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.6666666666666666 [2021-03-11 19:46:59,971 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 268 transitions. [2021-03-11 19:46:59,971 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 268 transitions. [2021-03-11 19:46:59,971 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-11 19:46:59,971 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 268 transitions. [2021-03-11 19:46:59,972 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 89.33333333333333) internal successors, (268), 3 states have internal predecessors, (268), 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) [2021-03-11 19:46:59,972 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) [2021-03-11 19:46:59,972 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) [2021-03-11 19:46:59,972 INFO L185 Difference]: Start difference. First operand has 42 places, 47 transitions, 315 flow. Second operand 3 states and 268 transitions. [2021-03-11 19:46:59,972 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 44 places, 76 transitions, 659 flow [2021-03-11 19:46:59,974 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 43 places, 76 transitions, 651 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-03-11 19:46:59,975 INFO L241 Difference]: Finished difference. Result has 45 places, 68 transitions, 645 flow [2021-03-11 19:46:59,975 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=134, PETRI_DIFFERENCE_MINUEND_FLOW=311, PETRI_DIFFERENCE_MINUEND_PLACES=41, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=47, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=18, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=645, PETRI_PLACES=45, PETRI_TRANSITIONS=68} [2021-03-11 19:46:59,975 INFO L335 CegarLoopForPetriNet]: 36 programPoint places, 9 predicate places. [2021-03-11 19:46:59,975 INFO L480 AbstractCegarLoop]: Abstraction has has 45 places, 68 transitions, 645 flow [2021-03-11 19:46:59,976 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 82.33333333333333) internal successors, (247), 3 states have internal predecessors, (247), 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) [2021-03-11 19:46:59,976 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-11 19:46:59,976 INFO L255 CegarLoopForPetriNet]: trace histogram [4, 3, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 19:46:59,976 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2021-03-11 19:46:59,976 INFO L428 AbstractCegarLoop]: === Iteration 8 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-11 19:46:59,976 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 19:46:59,976 INFO L82 PathProgramCache]: Analyzing trace with hash -1880382236, now seen corresponding path program 1 times [2021-03-11 19:46:59,976 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 19:46:59,976 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1872587809] [2021-03-11 19:46:59,976 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 19:46:59,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 19:46:59,987 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 19:46:59,987 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 19:46:59,988 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 19:46:59,989 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-11 19:46:59,991 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 19:46:59,992 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-11 19:46:59,994 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2021-03-11 19:46:59,994 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1872587809] [2021-03-11 19:46:59,994 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 19:46:59,994 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-11 19:46:59,994 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1290040205] [2021-03-11 19:46:59,995 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-03-11 19:46:59,995 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 19:46:59,995 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-03-11 19:46:59,995 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-03-11 19:46:59,995 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 81 out of 134 [2021-03-11 19:46:59,996 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 45 places, 68 transitions, 645 flow. Second operand has 4 states, 4 states have (on average 82.25) internal successors, (329), 4 states have internal predecessors, (329), 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) [2021-03-11 19:46:59,996 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-11 19:46:59,996 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 81 of 134 [2021-03-11 19:46:59,996 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-11 19:47:00,347 INFO L129 PetriNetUnfolder]: 4026/6096 cut-off events. [2021-03-11 19:47:00,347 INFO L130 PetriNetUnfolder]: For 18769/24860 co-relation queries the response was YES. [2021-03-11 19:47:00,366 INFO L84 FinitePrefix]: Finished finitePrefix Result has 26744 conditions, 6096 events. 4026/6096 cut-off events. For 18769/24860 co-relation queries the response was YES. Maximal size of possible extension queue 405. Compared 35833 event pairs, 917 based on Foata normal form. 455/6005 useless extension candidates. Maximal degree in co-relation 26720. Up to 4825 conditions per place. [2021-03-11 19:47:00,393 INFO L132 encePairwiseOnDemand]: 132/134 looper letters, 79 selfloop transitions, 8 changer transitions 0/94 dead transitions. [2021-03-11 19:47:00,393 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 46 places, 94 transitions, 1045 flow [2021-03-11 19:47:00,393 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-11 19:47:00,393 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-03-11 19:47:00,394 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 266 transitions. [2021-03-11 19:47:00,394 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.6616915422885572 [2021-03-11 19:47:00,394 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 266 transitions. [2021-03-11 19:47:00,394 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 266 transitions. [2021-03-11 19:47:00,394 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-11 19:47:00,394 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 266 transitions. [2021-03-11 19:47:00,395 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 88.66666666666667) internal successors, (266), 3 states have internal predecessors, (266), 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) [2021-03-11 19:47:00,395 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) [2021-03-11 19:47:00,395 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) [2021-03-11 19:47:00,396 INFO L185 Difference]: Start difference. First operand has 45 places, 68 transitions, 645 flow. Second operand 3 states and 266 transitions. [2021-03-11 19:47:00,396 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 46 places, 94 transitions, 1045 flow [2021-03-11 19:47:00,407 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 44 places, 94 transitions, 987 flow, removed 0 selfloop flow, removed 2 redundant places. [2021-03-11 19:47:00,408 INFO L241 Difference]: Finished difference. Result has 44 places, 67 transitions, 599 flow [2021-03-11 19:47:00,408 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=134, PETRI_DIFFERENCE_MINUEND_FLOW=583, PETRI_DIFFERENCE_MINUEND_PLACES=42, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=67, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=59, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=599, PETRI_PLACES=44, PETRI_TRANSITIONS=67} [2021-03-11 19:47:00,408 INFO L335 CegarLoopForPetriNet]: 36 programPoint places, 8 predicate places. [2021-03-11 19:47:00,408 INFO L480 AbstractCegarLoop]: Abstraction has has 44 places, 67 transitions, 599 flow [2021-03-11 19:47:00,409 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 82.25) internal successors, (329), 4 states have internal predecessors, (329), 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) [2021-03-11 19:47:00,409 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-11 19:47:00,409 INFO L255 CegarLoopForPetriNet]: trace histogram [5, 4, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 19:47:00,409 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2021-03-11 19:47:00,409 INFO L428 AbstractCegarLoop]: === Iteration 9 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-11 19:47:00,409 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 19:47:00,409 INFO L82 PathProgramCache]: Analyzing trace with hash 1005391993, now seen corresponding path program 1 times [2021-03-11 19:47:00,409 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 19:47:00,409 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1509826891] [2021-03-11 19:47:00,409 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 19:47:00,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 19:47:00,419 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 19:47:00,419 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 19:47:00,421 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 19:47:00,422 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-11 19:47:00,423 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2021-03-11 19:47:00,424 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1509826891] [2021-03-11 19:47:00,424 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 19:47:00,424 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-03-11 19:47:00,424 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [171736637] [2021-03-11 19:47:00,424 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-03-11 19:47:00,424 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 19:47:00,424 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-03-11 19:47:00,424 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-11 19:47:00,425 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 82 out of 134 [2021-03-11 19:47:00,425 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 44 places, 67 transitions, 599 flow. Second operand has 3 states, 3 states have (on average 83.33333333333333) internal successors, (250), 3 states have internal predecessors, (250), 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) [2021-03-11 19:47:00,425 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-11 19:47:00,425 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 82 of 134 [2021-03-11 19:47:00,425 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-11 19:47:00,929 INFO L129 PetriNetUnfolder]: 5410/8351 cut-off events. [2021-03-11 19:47:00,929 INFO L130 PetriNetUnfolder]: For 23299/26752 co-relation queries the response was YES. [2021-03-11 19:47:00,960 INFO L84 FinitePrefix]: Finished finitePrefix Result has 35734 conditions, 8351 events. 5410/8351 cut-off events. For 23299/26752 co-relation queries the response was YES. Maximal size of possible extension queue 653. Compared 54679 event pairs, 1586 based on Foata normal form. 40/7880 useless extension candidates. Maximal degree in co-relation 35710. Up to 6257 conditions per place. [2021-03-11 19:47:01,002 INFO L132 encePairwiseOnDemand]: 127/134 looper letters, 52 selfloop transitions, 49 changer transitions 0/108 dead transitions. [2021-03-11 19:47:01,003 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 46 places, 108 transitions, 1195 flow [2021-03-11 19:47:01,003 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-11 19:47:01,003 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-03-11 19:47:01,003 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 269 transitions. [2021-03-11 19:47:01,004 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.6691542288557214 [2021-03-11 19:47:01,004 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 269 transitions. [2021-03-11 19:47:01,004 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 269 transitions. [2021-03-11 19:47:01,004 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-11 19:47:01,004 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 269 transitions. [2021-03-11 19:47:01,005 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 89.66666666666667) internal successors, (269), 3 states have internal predecessors, (269), 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) [2021-03-11 19:47:01,005 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) [2021-03-11 19:47:01,005 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) [2021-03-11 19:47:01,005 INFO L185 Difference]: Start difference. First operand has 44 places, 67 transitions, 599 flow. Second operand 3 states and 269 transitions. [2021-03-11 19:47:01,005 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 46 places, 108 transitions, 1195 flow [2021-03-11 19:47:01,010 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 45 places, 108 transitions, 1179 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-03-11 19:47:01,012 INFO L241 Difference]: Finished difference. Result has 47 places, 100 transitions, 1209 flow [2021-03-11 19:47:01,012 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=134, PETRI_DIFFERENCE_MINUEND_FLOW=591, PETRI_DIFFERENCE_MINUEND_PLACES=43, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=67, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=16, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=18, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1209, PETRI_PLACES=47, PETRI_TRANSITIONS=100} [2021-03-11 19:47:01,012 INFO L335 CegarLoopForPetriNet]: 36 programPoint places, 11 predicate places. [2021-03-11 19:47:01,012 INFO L480 AbstractCegarLoop]: Abstraction has has 47 places, 100 transitions, 1209 flow [2021-03-11 19:47:01,012 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 83.33333333333333) internal successors, (250), 3 states have internal predecessors, (250), 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) [2021-03-11 19:47:01,012 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-11 19:47:01,012 INFO L255 CegarLoopForPetriNet]: trace histogram [6, 5, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 19:47:01,012 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2021-03-11 19:47:01,012 INFO L428 AbstractCegarLoop]: === Iteration 10 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-11 19:47:01,013 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 19:47:01,013 INFO L82 PathProgramCache]: Analyzing trace with hash 1102254931, now seen corresponding path program 1 times [2021-03-11 19:47:01,013 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 19:47:01,013 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1604575037] [2021-03-11 19:47:01,013 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 19:47:01,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-03-11 19:47:01,019 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-03-11 19:47:01,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-03-11 19:47:01,023 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-03-11 19:47:01,026 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-03-11 19:47:01,026 INFO L620 BasicCegarLoop]: Counterexample might be feasible [2021-03-11 19:47:01,026 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2021-03-11 19:47:01,026 WARN L342 ceAbstractionStarter]: 5 thread instances were not sufficient, I will increase this number and restart the analysis [2021-03-11 19:47:01,027 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 6 thread instances. [2021-03-11 19:47:01,037 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread6of6ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:47:01,037 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread6of6ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:47:01,037 WARN L313 ript$VariableManager]: TermVariabe thr1Thread6of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:47:01,037 WARN L313 ript$VariableManager]: TermVariabe thr1Thread6of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:47:01,037 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread6of6ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:47:01,037 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread6of6ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:47:01,037 WARN L313 ript$VariableManager]: TermVariabe thr1Thread6of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:47:01,037 WARN L313 ript$VariableManager]: TermVariabe thr1Thread6of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:47:01,037 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread6of6ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:47:01,037 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread6of6ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:47:01,037 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread6of6ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:47:01,037 WARN L313 ript$VariableManager]: TermVariabe thr1Thread6of6ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:47:01,038 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread6of6ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:47:01,038 WARN L313 ript$VariableManager]: TermVariabe thr1Thread6of6ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:47:01,038 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread6of6ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:47:01,038 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread6of6ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:47:01,038 WARN L313 ript$VariableManager]: TermVariabe thr1Thread6of6ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:47:01,038 WARN L313 ript$VariableManager]: TermVariabe thr1Thread6of6ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:47:01,038 WARN L313 ript$VariableManager]: TermVariabe thr1Thread6of6ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:47:01,038 WARN L313 ript$VariableManager]: TermVariabe thr1Thread6of6ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:47:01,038 WARN L313 ript$VariableManager]: TermVariabe thr1Thread6of6ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:47:01,038 WARN L313 ript$VariableManager]: TermVariabe thr1Thread6of6ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:47:01,038 WARN L313 ript$VariableManager]: TermVariabe thr1Thread6of6ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:47:01,038 WARN L313 ript$VariableManager]: TermVariabe thr1Thread6of6ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:47:01,038 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread6of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:47:01,038 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread6of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:47:01,038 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread6of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:47:01,038 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread6of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:47:01,039 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of6ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:47:01,039 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of6ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:47:01,039 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:47:01,039 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:47:01,039 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of6ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:47:01,039 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of6ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:47:01,039 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:47:01,039 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:47:01,039 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of6ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:47:01,039 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of6ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:47:01,039 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of6ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:47:01,039 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of6ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:47:01,039 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of6ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:47:01,039 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of6ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:47:01,039 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of6ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:47:01,039 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of6ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:47:01,039 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of6ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:47:01,039 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of6ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:47:01,040 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of6ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:47:01,040 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of6ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:47:01,040 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of6ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:47:01,040 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of6ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:47:01,040 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of6ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:47:01,040 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of6ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:47:01,040 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:47:01,040 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:47:01,040 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:47:01,040 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:47:01,040 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of6ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:47:01,040 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of6ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:47:01,040 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:47:01,040 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:47:01,040 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of6ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:47:01,040 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of6ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:47:01,040 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:47:01,041 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:47:01,041 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of6ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:47:01,041 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of6ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:47:01,041 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of6ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:47:01,041 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of6ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:47:01,041 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of6ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:47:01,041 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of6ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:47:01,041 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of6ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:47:01,041 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of6ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:47:01,041 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of6ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:47:01,041 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of6ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:47:01,041 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of6ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:47:01,041 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of6ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:47:01,041 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of6ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:47:01,041 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of6ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:47:01,041 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of6ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:47:01,041 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of6ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:47:01,042 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:47:01,042 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:47:01,042 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:47:01,042 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:47:01,042 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of6ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:47:01,042 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of6ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:47:01,042 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:47:01,042 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:47:01,042 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of6ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:47:01,042 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of6ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:47:01,042 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:47:01,042 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:47:01,042 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of6ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:47:01,042 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of6ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:47:01,042 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of6ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:47:01,042 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of6ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:47:01,042 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of6ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:47:01,042 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of6ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:47:01,043 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of6ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:47:01,043 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of6ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:47:01,043 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of6ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:47:01,043 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of6ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:47:01,043 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of6ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:47:01,043 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of6ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:47:01,043 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of6ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:47:01,043 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of6ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:47:01,043 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of6ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:47:01,043 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of6ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:47:01,043 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:47:01,043 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:47:01,043 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:47:01,043 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:47:01,043 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of6ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:47:01,044 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of6ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:47:01,044 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:47:01,044 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:47:01,044 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of6ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:47:01,044 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of6ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:47:01,044 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:47:01,044 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:47:01,044 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of6ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:47:01,044 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of6ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:47:01,044 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of6ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:47:01,044 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of6ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:47:01,044 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of6ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:47:01,044 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of6ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:47:01,044 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of6ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:47:01,044 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of6ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:47:01,044 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of6ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:47:01,044 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of6ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:47:01,044 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of6ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:47:01,044 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of6ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:47:01,045 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of6ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:47:01,045 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of6ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:47:01,045 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of6ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:47:01,045 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of6ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:47:01,045 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:47:01,045 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:47:01,045 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:47:01,045 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:47:01,045 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of6ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:47:01,045 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of6ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:47:01,045 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:47:01,045 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:47:01,045 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of6ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:47:01,045 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of6ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:47:01,045 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:47:01,046 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:47:01,046 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of6ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:47:01,046 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of6ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:47:01,046 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of6ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:47:01,046 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of6ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:47:01,046 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of6ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:47:01,046 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of6ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:47:01,046 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of6ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:47:01,046 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of6ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:47:01,046 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of6ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:47:01,046 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of6ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:47:01,046 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of6ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:47:01,046 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of6ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:47:01,046 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of6ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:47:01,046 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of6ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:47:01,046 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of6ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:47:01,046 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of6ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:47:01,046 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:47:01,047 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:47:01,047 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:47:01,047 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:47:01,047 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:47:01,047 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:47:01,047 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:47:01,047 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of6ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:47:01,047 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of6ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:47:01,047 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:47:01,048 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:47:01,048 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:47:01,048 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:47:01,048 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:47:01,049 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of6ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:47:01,049 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of6ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:47:01,049 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:47:01,049 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:47:01,049 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:47:01,050 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:47:01,050 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of6ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:47:01,050 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of6ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:47:01,050 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of6ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:47:01,050 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of6ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:47:01,051 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:47:01,051 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:47:01,051 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:47:01,051 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:47:01,051 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of6ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:47:01,052 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:47:01,052 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:47:01,052 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:47:01,052 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:47:01,052 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of6ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:47:01,053 WARN L313 ript$VariableManager]: TermVariabe thr1Thread6of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:47:01,053 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread6of6ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:47:01,053 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread6of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:47:01,053 WARN L313 ript$VariableManager]: TermVariabe thr1Thread6of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:47:01,053 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread6of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:47:01,053 WARN L313 ript$VariableManager]: TermVariabe thr1Thread6of6ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:47:01,054 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-03-11 19:47:01,054 INFO L253 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2021-03-11 19:47:01,054 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-03-11 19:47:01,054 INFO L377 AbstractCegarLoop]: Hoare is false [2021-03-11 19:47:01,054 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-03-11 19:47:01,054 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-03-11 19:47:01,054 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-03-11 19:47:01,054 INFO L381 AbstractCegarLoop]: Difference is false [2021-03-11 19:47:01,055 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-03-11 19:47:01,055 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-03-11 19:47:01,055 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 102 places, 90 transitions, 240 flow [2021-03-11 19:47:01,062 INFO L129 PetriNetUnfolder]: 7/143 cut-off events. [2021-03-11 19:47:01,063 INFO L130 PetriNetUnfolder]: For 50/50 co-relation queries the response was YES. [2021-03-11 19:47:01,063 INFO L84 FinitePrefix]: Finished finitePrefix Result has 183 conditions, 143 events. 7/143 cut-off events. For 50/50 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 364 event pairs, 0 based on Foata normal form. 0/123 useless extension candidates. Maximal degree in co-relation 142. Up to 14 conditions per place. [2021-03-11 19:47:01,063 INFO L82 GeneralOperation]: Start removeDead. Operand has 102 places, 90 transitions, 240 flow [2021-03-11 19:47:01,064 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 102 places, 90 transitions, 240 flow [2021-03-11 19:47:01,064 INFO L118 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-03-11 19:47:01,064 INFO L133 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 102 places, 90 transitions, 240 flow [2021-03-11 19:47:01,064 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 102 places, 90 transitions, 240 flow [2021-03-11 19:47:01,064 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 102 places, 90 transitions, 240 flow [2021-03-11 19:47:01,071 INFO L129 PetriNetUnfolder]: 7/143 cut-off events. [2021-03-11 19:47:01,071 INFO L130 PetriNetUnfolder]: For 50/50 co-relation queries the response was YES. [2021-03-11 19:47:01,072 INFO L84 FinitePrefix]: Finished finitePrefix Result has 183 conditions, 143 events. 7/143 cut-off events. For 50/50 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 394 event pairs, 0 based on Foata normal form. 0/123 useless extension candidates. Maximal degree in co-relation 142. Up to 14 conditions per place. [2021-03-11 19:47:01,074 INFO L116 LiptonReduction]: Number of co-enabled transitions 4500 [2021-03-11 19:47:02,702 INFO L131 LiptonReduction]: Checked pairs total: 7672 [2021-03-11 19:47:02,702 INFO L133 LiptonReduction]: Total number of compositions: 62 [2021-03-11 19:47:02,703 INFO L182 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 1639 [2021-03-11 19:47:02,703 INFO L129 PetriNetUnfolder]: 0/8 cut-off events. [2021-03-11 19:47:02,704 INFO L130 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2021-03-11 19:47:02,704 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-11 19:47:02,704 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2021-03-11 19:47:02,704 INFO L428 AbstractCegarLoop]: === Iteration 1 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-11 19:47:02,704 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 19:47:02,704 INFO L82 PathProgramCache]: Analyzing trace with hash 759951489, now seen corresponding path program 1 times [2021-03-11 19:47:02,704 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 19:47:02,704 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1900788494] [2021-03-11 19:47:02,704 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 19:47:02,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 19:47:02,710 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 19:47:02,711 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 19:47:02,711 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 19:47:02,711 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-11 19:47:02,713 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 19:47:02,713 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1900788494] [2021-03-11 19:47:02,713 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 19:47:02,714 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-03-11 19:47:02,714 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1562013015] [2021-03-11 19:47:02,714 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-03-11 19:47:02,714 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 19:47:02,714 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-03-11 19:47:02,714 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-11 19:47:02,714 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 90 out of 152 [2021-03-11 19:47:02,715 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 42 places, 29 transitions, 118 flow. Second operand has 3 states, 3 states have (on average 91.33333333333333) internal successors, (274), 3 states have internal predecessors, (274), 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) [2021-03-11 19:47:02,715 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-11 19:47:02,715 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 90 of 152 [2021-03-11 19:47:02,715 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-11 19:47:04,161 INFO L129 PetriNetUnfolder]: 20979/27140 cut-off events. [2021-03-11 19:47:04,161 INFO L130 PetriNetUnfolder]: For 51/51 co-relation queries the response was YES. [2021-03-11 19:47:04,234 INFO L84 FinitePrefix]: Finished finitePrefix Result has 54302 conditions, 27140 events. 20979/27140 cut-off events. For 51/51 co-relation queries the response was YES. Maximal size of possible extension queue 1355. Compared 145234 event pairs, 11950 based on Foata normal form. 6152/24234 useless extension candidates. Maximal degree in co-relation 54240. Up to 18931 conditions per place. [2021-03-11 19:47:04,338 INFO L132 encePairwiseOnDemand]: 143/152 looper letters, 29 selfloop transitions, 7 changer transitions 0/44 dead transitions. [2021-03-11 19:47:04,338 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 43 places, 44 transitions, 220 flow [2021-03-11 19:47:04,351 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-11 19:47:04,351 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-03-11 19:47:04,352 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 309 transitions. [2021-03-11 19:47:04,352 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.6776315789473685 [2021-03-11 19:47:04,352 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 309 transitions. [2021-03-11 19:47:04,352 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 309 transitions. [2021-03-11 19:47:04,352 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-11 19:47:04,352 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 309 transitions. [2021-03-11 19:47:04,353 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 103.0) internal successors, (309), 3 states have internal predecessors, (309), 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) [2021-03-11 19:47:04,353 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 152.0) internal successors, (608), 4 states have internal predecessors, (608), 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) [2021-03-11 19:47:04,354 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 152.0) internal successors, (608), 4 states have internal predecessors, (608), 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) [2021-03-11 19:47:04,354 INFO L185 Difference]: Start difference. First operand has 42 places, 29 transitions, 118 flow. Second operand 3 states and 309 transitions. [2021-03-11 19:47:04,354 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 43 places, 44 transitions, 220 flow [2021-03-11 19:47:04,354 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 43 places, 44 transitions, 190 flow, removed 15 selfloop flow, removed 0 redundant places. [2021-03-11 19:47:04,355 INFO L241 Difference]: Finished difference. Result has 45 places, 34 transitions, 140 flow [2021-03-11 19:47:04,355 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=152, PETRI_DIFFERENCE_MINUEND_FLOW=86, PETRI_DIFFERENCE_MINUEND_PLACES=41, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=28, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=21, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=140, PETRI_PLACES=45, PETRI_TRANSITIONS=34} [2021-03-11 19:47:04,355 INFO L335 CegarLoopForPetriNet]: 42 programPoint places, 3 predicate places. [2021-03-11 19:47:04,355 INFO L480 AbstractCegarLoop]: Abstraction has has 45 places, 34 transitions, 140 flow [2021-03-11 19:47:04,355 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 91.33333333333333) internal successors, (274), 3 states have internal predecessors, (274), 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) [2021-03-11 19:47:04,355 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-11 19:47:04,355 INFO L255 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1] [2021-03-11 19:47:04,355 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2021-03-11 19:47:04,355 INFO L428 AbstractCegarLoop]: === Iteration 2 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-11 19:47:04,355 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 19:47:04,356 INFO L82 PathProgramCache]: Analyzing trace with hash 801562081, now seen corresponding path program 1 times [2021-03-11 19:47:04,356 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 19:47:04,356 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [709753304] [2021-03-11 19:47:04,356 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 19:47:04,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 19:47:04,362 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 19:47:04,362 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 19:47:04,363 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 19:47:04,363 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-11 19:47:04,365 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-03-11 19:47:04,365 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [709753304] [2021-03-11 19:47:04,365 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 19:47:04,365 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-03-11 19:47:04,365 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [68204051] [2021-03-11 19:47:04,366 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-03-11 19:47:04,366 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 19:47:04,366 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-03-11 19:47:04,366 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-11 19:47:04,366 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 90 out of 152 [2021-03-11 19:47:04,367 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 45 places, 34 transitions, 140 flow. Second operand has 3 states, 3 states have (on average 91.33333333333333) internal successors, (274), 3 states have internal predecessors, (274), 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) [2021-03-11 19:47:04,367 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-11 19:47:04,367 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 90 of 152 [2021-03-11 19:47:04,367 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-11 19:47:06,517 INFO L129 PetriNetUnfolder]: 29632/38599 cut-off events. [2021-03-11 19:47:06,517 INFO L130 PetriNetUnfolder]: For 24520/75218 co-relation queries the response was YES. [2021-03-11 19:47:06,675 INFO L84 FinitePrefix]: Finished finitePrefix Result has 99919 conditions, 38599 events. 29632/38599 cut-off events. For 24520/75218 co-relation queries the response was YES. Maximal size of possible extension queue 1843. Compared 214484 event pairs, 13681 based on Foata normal form. 1/27650 useless extension candidates. Maximal degree in co-relation 99879. Up to 27324 conditions per place. [2021-03-11 19:47:06,949 INFO L132 encePairwiseOnDemand]: 144/152 looper letters, 35 selfloop transitions, 12 changer transitions 0/55 dead transitions. [2021-03-11 19:47:06,949 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 47 places, 55 transitions, 312 flow [2021-03-11 19:47:06,951 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-11 19:47:06,951 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-03-11 19:47:06,959 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 307 transitions. [2021-03-11 19:47:06,959 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.6732456140350878 [2021-03-11 19:47:06,959 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 307 transitions. [2021-03-11 19:47:06,960 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 307 transitions. [2021-03-11 19:47:06,960 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-11 19:47:06,960 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 307 transitions. [2021-03-11 19:47:06,960 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 102.33333333333333) internal successors, (307), 3 states have internal predecessors, (307), 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) [2021-03-11 19:47:06,961 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 152.0) internal successors, (608), 4 states have internal predecessors, (608), 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) [2021-03-11 19:47:06,961 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 152.0) internal successors, (608), 4 states have internal predecessors, (608), 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) [2021-03-11 19:47:06,961 INFO L185 Difference]: Start difference. First operand has 45 places, 34 transitions, 140 flow. Second operand 3 states and 307 transitions. [2021-03-11 19:47:06,961 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 47 places, 55 transitions, 312 flow [2021-03-11 19:47:07,080 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 45 places, 55 transitions, 286 flow, removed 0 selfloop flow, removed 2 redundant places. [2021-03-11 19:47:07,081 INFO L241 Difference]: Finished difference. Result has 47 places, 44 transitions, 234 flow [2021-03-11 19:47:07,081 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=152, PETRI_DIFFERENCE_MINUEND_FLOW=126, PETRI_DIFFERENCE_MINUEND_PLACES=43, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=34, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=22, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=234, PETRI_PLACES=47, PETRI_TRANSITIONS=44} [2021-03-11 19:47:07,081 INFO L335 CegarLoopForPetriNet]: 42 programPoint places, 5 predicate places. [2021-03-11 19:47:07,081 INFO L480 AbstractCegarLoop]: Abstraction has has 47 places, 44 transitions, 234 flow [2021-03-11 19:47:07,081 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 91.33333333333333) internal successors, (274), 3 states have internal predecessors, (274), 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) [2021-03-11 19:47:07,081 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-11 19:47:07,081 INFO L255 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 19:47:07,082 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2021-03-11 19:47:07,082 INFO L428 AbstractCegarLoop]: === Iteration 3 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-11 19:47:07,082 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 19:47:07,082 INFO L82 PathProgramCache]: Analyzing trace with hash -921374579, now seen corresponding path program 1 times [2021-03-11 19:47:07,082 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 19:47:07,082 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1777591756] [2021-03-11 19:47:07,082 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 19:47:07,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 19:47:07,089 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 19:47:07,089 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 19:47:07,089 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 19:47:07,089 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-11 19:47:07,091 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 19:47:07,092 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-11 19:47:07,094 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-03-11 19:47:07,094 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1777591756] [2021-03-11 19:47:07,094 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 19:47:07,094 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-11 19:47:07,094 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [56648804] [2021-03-11 19:47:07,094 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-03-11 19:47:07,094 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 19:47:07,095 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-03-11 19:47:07,095 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-03-11 19:47:07,095 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 90 out of 152 [2021-03-11 19:47:07,095 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 47 places, 44 transitions, 234 flow. Second operand has 4 states, 4 states have (on average 91.25) internal successors, (365), 4 states have internal predecessors, (365), 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) [2021-03-11 19:47:07,095 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-11 19:47:07,095 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 90 of 152 [2021-03-11 19:47:07,095 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-11 19:47:08,729 INFO L129 PetriNetUnfolder]: 24017/31450 cut-off events. [2021-03-11 19:47:08,729 INFO L130 PetriNetUnfolder]: For 30768/172998 co-relation queries the response was YES. [2021-03-11 19:47:08,974 INFO L84 FinitePrefix]: Finished finitePrefix Result has 95053 conditions, 31450 events. 24017/31450 cut-off events. For 30768/172998 co-relation queries the response was YES. Maximal size of possible extension queue 1472. Compared 176234 event pairs, 4098 based on Foata normal form. 12/23642 useless extension candidates. Maximal degree in co-relation 95029. Up to 25811 conditions per place. [2021-03-11 19:47:09,124 INFO L132 encePairwiseOnDemand]: 150/152 looper letters, 53 selfloop transitions, 2 changer transitions 0/63 dead transitions. [2021-03-11 19:47:09,124 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 48 places, 63 transitions, 434 flow [2021-03-11 19:47:09,124 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-11 19:47:09,125 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-03-11 19:47:09,125 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 305 transitions. [2021-03-11 19:47:09,125 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.668859649122807 [2021-03-11 19:47:09,125 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 305 transitions. [2021-03-11 19:47:09,125 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 305 transitions. [2021-03-11 19:47:09,126 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-11 19:47:09,126 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 305 transitions. [2021-03-11 19:47:09,126 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 101.66666666666667) internal successors, (305), 3 states have internal predecessors, (305), 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) [2021-03-11 19:47:09,126 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 152.0) internal successors, (608), 4 states have internal predecessors, (608), 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) [2021-03-11 19:47:09,127 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 152.0) internal successors, (608), 4 states have internal predecessors, (608), 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) [2021-03-11 19:47:09,127 INFO L185 Difference]: Start difference. First operand has 47 places, 44 transitions, 234 flow. Second operand 3 states and 305 transitions. [2021-03-11 19:47:09,127 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 48 places, 63 transitions, 434 flow [2021-03-11 19:47:09,264 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 46 places, 63 transitions, 398 flow, removed 0 selfloop flow, removed 2 redundant places. [2021-03-11 19:47:09,265 INFO L241 Difference]: Finished difference. Result has 46 places, 43 transitions, 210 flow [2021-03-11 19:47:09,265 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=152, PETRI_DIFFERENCE_MINUEND_FLOW=206, PETRI_DIFFERENCE_MINUEND_PLACES=44, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=43, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=41, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=210, PETRI_PLACES=46, PETRI_TRANSITIONS=43} [2021-03-11 19:47:09,265 INFO L335 CegarLoopForPetriNet]: 42 programPoint places, 4 predicate places. [2021-03-11 19:47:09,265 INFO L480 AbstractCegarLoop]: Abstraction has has 46 places, 43 transitions, 210 flow [2021-03-11 19:47:09,265 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 91.25) internal successors, (365), 4 states have internal predecessors, (365), 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) [2021-03-11 19:47:09,265 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-11 19:47:09,265 INFO L255 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 19:47:09,265 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2021-03-11 19:47:09,265 INFO L428 AbstractCegarLoop]: === Iteration 4 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-11 19:47:09,266 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 19:47:09,266 INFO L82 PathProgramCache]: Analyzing trace with hash -921376399, now seen corresponding path program 1 times [2021-03-11 19:47:09,266 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 19:47:09,266 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1197113478] [2021-03-11 19:47:09,266 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 19:47:09,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 19:47:09,289 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 19:47:09,290 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 19:47:09,290 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 19:47:09,291 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-11 19:47:09,293 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 19:47:09,294 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-11 19:47:09,296 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-03-11 19:47:09,296 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1197113478] [2021-03-11 19:47:09,296 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 19:47:09,296 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-11 19:47:09,297 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1644143787] [2021-03-11 19:47:09,297 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-03-11 19:47:09,297 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 19:47:09,297 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-03-11 19:47:09,297 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-03-11 19:47:09,297 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 90 out of 152 [2021-03-11 19:47:09,298 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 46 places, 43 transitions, 210 flow. Second operand has 4 states, 4 states have (on average 91.25) internal successors, (365), 4 states have internal predecessors, (365), 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) [2021-03-11 19:47:09,298 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-11 19:47:09,298 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 90 of 152 [2021-03-11 19:47:09,298 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-11 19:47:10,809 INFO L129 PetriNetUnfolder]: 19425/25583 cut-off events. [2021-03-11 19:47:10,809 INFO L130 PetriNetUnfolder]: For 21695/127127 co-relation queries the response was YES. [2021-03-11 19:47:10,879 INFO L84 FinitePrefix]: Finished finitePrefix Result has 74402 conditions, 25583 events. 19425/25583 cut-off events. For 21695/127127 co-relation queries the response was YES. Maximal size of possible extension queue 1170. Compared 139038 event pairs, 5213 based on Foata normal form. 10/19103 useless extension candidates. Maximal degree in co-relation 74360. Up to 20959 conditions per place. [2021-03-11 19:47:10,983 INFO L132 encePairwiseOnDemand]: 150/152 looper letters, 51 selfloop transitions, 2 changer transitions 0/61 dead transitions. [2021-03-11 19:47:10,983 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 47 places, 61 transitions, 392 flow [2021-03-11 19:47:10,984 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-11 19:47:10,984 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-03-11 19:47:10,984 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 303 transitions. [2021-03-11 19:47:10,984 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.6644736842105263 [2021-03-11 19:47:10,984 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 303 transitions. [2021-03-11 19:47:10,985 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 303 transitions. [2021-03-11 19:47:10,985 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-11 19:47:10,985 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 303 transitions. [2021-03-11 19:47:10,985 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 101.0) internal successors, (303), 3 states have internal predecessors, (303), 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) [2021-03-11 19:47:10,986 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 152.0) internal successors, (608), 4 states have internal predecessors, (608), 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) [2021-03-11 19:47:10,986 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 152.0) internal successors, (608), 4 states have internal predecessors, (608), 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) [2021-03-11 19:47:10,986 INFO L185 Difference]: Start difference. First operand has 46 places, 43 transitions, 210 flow. Second operand 3 states and 303 transitions. [2021-03-11 19:47:10,986 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 47 places, 61 transitions, 392 flow [2021-03-11 19:47:10,989 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 46 places, 61 transitions, 389 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-03-11 19:47:10,990 INFO L241 Difference]: Finished difference. Result has 46 places, 42 transitions, 208 flow [2021-03-11 19:47:10,990 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=152, PETRI_DIFFERENCE_MINUEND_FLOW=204, PETRI_DIFFERENCE_MINUEND_PLACES=44, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=42, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=40, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=208, PETRI_PLACES=46, PETRI_TRANSITIONS=42} [2021-03-11 19:47:10,990 INFO L335 CegarLoopForPetriNet]: 42 programPoint places, 4 predicate places. [2021-03-11 19:47:10,990 INFO L480 AbstractCegarLoop]: Abstraction has has 46 places, 42 transitions, 208 flow [2021-03-11 19:47:10,990 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 91.25) internal successors, (365), 4 states have internal predecessors, (365), 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) [2021-03-11 19:47:10,990 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-11 19:47:10,990 INFO L255 CegarLoopForPetriNet]: trace histogram [3, 2, 1, 1, 1, 1, 1, 1] [2021-03-11 19:47:10,990 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2021-03-11 19:47:10,990 INFO L428 AbstractCegarLoop]: === Iteration 5 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-11 19:47:10,990 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 19:47:10,990 INFO L82 PathProgramCache]: Analyzing trace with hash -822183931, now seen corresponding path program 1 times [2021-03-11 19:47:10,990 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 19:47:10,991 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1689974206] [2021-03-11 19:47:10,991 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 19:47:10,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 19:47:10,997 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 19:47:10,997 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 19:47:10,997 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 19:47:10,997 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-11 19:47:10,999 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2021-03-11 19:47:10,999 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1689974206] [2021-03-11 19:47:10,999 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 19:47:10,999 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-03-11 19:47:11,000 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [965086299] [2021-03-11 19:47:11,000 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-03-11 19:47:11,000 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 19:47:11,000 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-03-11 19:47:11,000 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-11 19:47:11,000 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 92 out of 152 [2021-03-11 19:47:11,001 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 46 places, 42 transitions, 208 flow. Second operand has 3 states, 3 states have (on average 93.33333333333333) internal successors, (280), 3 states have internal predecessors, (280), 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) [2021-03-11 19:47:11,001 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-11 19:47:11,001 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 92 of 152 [2021-03-11 19:47:11,001 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-11 19:47:13,060 INFO L129 PetriNetUnfolder]: 26373/35077 cut-off events. [2021-03-11 19:47:13,060 INFO L130 PetriNetUnfolder]: For 39680/174832 co-relation queries the response was YES. [2021-03-11 19:47:13,209 INFO L84 FinitePrefix]: Finished finitePrefix Result has 103459 conditions, 35077 events. 26373/35077 cut-off events. For 39680/174832 co-relation queries the response was YES. Maximal size of possible extension queue 1641. Compared 199007 event pairs, 10352 based on Foata normal form. 4/26616 useless extension candidates. Maximal degree in co-relation 103436. Up to 25476 conditions per place. [2021-03-11 19:47:13,371 INFO L132 encePairwiseOnDemand]: 144/152 looper letters, 40 selfloop transitions, 21 changer transitions 0/69 dead transitions. [2021-03-11 19:47:13,372 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 48 places, 69 transitions, 462 flow [2021-03-11 19:47:13,372 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-11 19:47:13,372 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-03-11 19:47:13,373 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 309 transitions. [2021-03-11 19:47:13,373 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.6776315789473685 [2021-03-11 19:47:13,373 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 309 transitions. [2021-03-11 19:47:13,373 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 309 transitions. [2021-03-11 19:47:13,373 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-11 19:47:13,373 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 309 transitions. [2021-03-11 19:47:13,373 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 103.0) internal successors, (309), 3 states have internal predecessors, (309), 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) [2021-03-11 19:47:13,374 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 152.0) internal successors, (608), 4 states have internal predecessors, (608), 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) [2021-03-11 19:47:13,374 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 152.0) internal successors, (608), 4 states have internal predecessors, (608), 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) [2021-03-11 19:47:13,374 INFO L185 Difference]: Start difference. First operand has 46 places, 42 transitions, 208 flow. Second operand 3 states and 309 transitions. [2021-03-11 19:47:13,374 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 48 places, 69 transitions, 462 flow [2021-03-11 19:47:13,380 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 47 places, 69 transitions, 458 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-03-11 19:47:13,381 INFO L241 Difference]: Finished difference. Result has 49 places, 59 transitions, 428 flow [2021-03-11 19:47:13,381 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=152, PETRI_DIFFERENCE_MINUEND_FLOW=206, PETRI_DIFFERENCE_MINUEND_PLACES=45, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=42, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=21, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=428, PETRI_PLACES=49, PETRI_TRANSITIONS=59} [2021-03-11 19:47:13,381 INFO L335 CegarLoopForPetriNet]: 42 programPoint places, 7 predicate places. [2021-03-11 19:47:13,381 INFO L480 AbstractCegarLoop]: Abstraction has has 49 places, 59 transitions, 428 flow [2021-03-11 19:47:13,381 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 93.33333333333333) internal successors, (280), 3 states have internal predecessors, (280), 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) [2021-03-11 19:47:13,381 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-11 19:47:13,381 INFO L255 CegarLoopForPetriNet]: trace histogram [3, 2, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 19:47:13,381 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2021-03-11 19:47:13,382 INFO L428 AbstractCegarLoop]: === Iteration 6 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-11 19:47:13,382 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 19:47:13,382 INFO L82 PathProgramCache]: Analyzing trace with hash 282105019, now seen corresponding path program 1 times [2021-03-11 19:47:13,382 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 19:47:13,382 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [525983471] [2021-03-11 19:47:13,382 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 19:47:13,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 19:47:13,389 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 19:47:13,390 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 19:47:13,390 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 19:47:13,390 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-11 19:47:13,392 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 19:47:13,392 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-11 19:47:13,395 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2021-03-11 19:47:13,395 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [525983471] [2021-03-11 19:47:13,395 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 19:47:13,395 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-11 19:47:13,395 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1539161181] [2021-03-11 19:47:13,395 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-03-11 19:47:13,395 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 19:47:13,396 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-03-11 19:47:13,396 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-03-11 19:47:13,396 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 92 out of 152 [2021-03-11 19:47:13,396 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 49 places, 59 transitions, 428 flow. Second operand has 4 states, 4 states have (on average 93.25) internal successors, (373), 4 states have internal predecessors, (373), 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) [2021-03-11 19:47:13,396 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-11 19:47:13,396 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 92 of 152 [2021-03-11 19:47:13,396 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-11 19:47:14,979 INFO L129 PetriNetUnfolder]: 21164/28341 cut-off events. [2021-03-11 19:47:14,979 INFO L130 PetriNetUnfolder]: For 57513/369707 co-relation queries the response was YES. [2021-03-11 19:47:15,099 INFO L84 FinitePrefix]: Finished finitePrefix Result has 103256 conditions, 28341 events. 21164/28341 cut-off events. For 57513/369707 co-relation queries the response was YES. Maximal size of possible extension queue 1287. Compared 163429 event pairs, 3669 based on Foata normal form. 1545/24159 useless extension candidates. Maximal degree in co-relation 103232. Up to 23073 conditions per place. [2021-03-11 19:47:15,232 INFO L132 encePairwiseOnDemand]: 150/152 looper letters, 72 selfloop transitions, 4 changer transitions 0/84 dead transitions. [2021-03-11 19:47:15,232 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 50 places, 84 transitions, 736 flow [2021-03-11 19:47:15,232 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-11 19:47:15,233 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-03-11 19:47:15,233 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 307 transitions. [2021-03-11 19:47:15,233 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.6732456140350878 [2021-03-11 19:47:15,233 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 307 transitions. [2021-03-11 19:47:15,233 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 307 transitions. [2021-03-11 19:47:15,233 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-11 19:47:15,233 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 307 transitions. [2021-03-11 19:47:15,234 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 102.33333333333333) internal successors, (307), 3 states have internal predecessors, (307), 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) [2021-03-11 19:47:15,234 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 152.0) internal successors, (608), 4 states have internal predecessors, (608), 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) [2021-03-11 19:47:15,234 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 152.0) internal successors, (608), 4 states have internal predecessors, (608), 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) [2021-03-11 19:47:15,235 INFO L185 Difference]: Start difference. First operand has 49 places, 59 transitions, 428 flow. Second operand 3 states and 307 transitions. [2021-03-11 19:47:15,235 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 50 places, 84 transitions, 736 flow [2021-03-11 19:47:15,285 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 48 places, 84 transitions, 694 flow, removed 0 selfloop flow, removed 2 redundant places. [2021-03-11 19:47:15,286 INFO L241 Difference]: Finished difference. Result has 48 places, 58 transitions, 390 flow [2021-03-11 19:47:15,286 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=152, PETRI_DIFFERENCE_MINUEND_FLOW=382, PETRI_DIFFERENCE_MINUEND_PLACES=46, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=58, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=54, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=390, PETRI_PLACES=48, PETRI_TRANSITIONS=58} [2021-03-11 19:47:15,286 INFO L335 CegarLoopForPetriNet]: 42 programPoint places, 6 predicate places. [2021-03-11 19:47:15,286 INFO L480 AbstractCegarLoop]: Abstraction has has 48 places, 58 transitions, 390 flow [2021-03-11 19:47:15,286 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 93.25) internal successors, (373), 4 states have internal predecessors, (373), 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) [2021-03-11 19:47:15,286 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-11 19:47:15,287 INFO L255 CegarLoopForPetriNet]: trace histogram [4, 3, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 19:47:15,287 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2021-03-11 19:47:15,287 INFO L428 AbstractCegarLoop]: === Iteration 7 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-11 19:47:15,287 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 19:47:15,287 INFO L82 PathProgramCache]: Analyzing trace with hash 380096694, now seen corresponding path program 1 times [2021-03-11 19:47:15,287 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 19:47:15,287 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1790709530] [2021-03-11 19:47:15,287 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 19:47:15,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 19:47:15,294 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 19:47:15,294 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 19:47:15,295 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 19:47:15,295 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-11 19:47:15,297 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2021-03-11 19:47:15,298 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1790709530] [2021-03-11 19:47:15,298 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 19:47:15,298 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-03-11 19:47:15,298 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [207971728] [2021-03-11 19:47:15,298 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-03-11 19:47:15,298 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 19:47:15,299 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-03-11 19:47:15,299 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-11 19:47:15,299 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 91 out of 152 [2021-03-11 19:47:15,299 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 48 places, 58 transitions, 390 flow. Second operand has 3 states, 3 states have (on average 92.33333333333333) internal successors, (277), 3 states have internal predecessors, (277), 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) [2021-03-11 19:47:15,299 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-11 19:47:15,299 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 91 of 152 [2021-03-11 19:47:15,299 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-11 19:47:17,813 INFO L129 PetriNetUnfolder]: 28030/38012 cut-off events. [2021-03-11 19:47:17,814 INFO L130 PetriNetUnfolder]: For 80997/392827 co-relation queries the response was YES. [2021-03-11 19:47:18,094 INFO L84 FinitePrefix]: Finished finitePrefix Result has 132159 conditions, 38012 events. 28030/38012 cut-off events. For 80997/392827 co-relation queries the response was YES. Maximal size of possible extension queue 1828. Compared 226088 event pairs, 9219 based on Foata normal form. 22/30948 useless extension candidates. Maximal degree in co-relation 132135. Up to 27935 conditions per place. [2021-03-11 19:47:18,260 INFO L132 encePairwiseOnDemand]: 144/152 looper letters, 52 selfloop transitions, 37 changer transitions 0/97 dead transitions. [2021-03-11 19:47:18,260 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 50 places, 97 transitions, 842 flow [2021-03-11 19:47:18,261 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-11 19:47:18,261 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-03-11 19:47:18,261 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 304 transitions. [2021-03-11 19:47:18,261 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.6666666666666666 [2021-03-11 19:47:18,261 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 304 transitions. [2021-03-11 19:47:18,262 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 304 transitions. [2021-03-11 19:47:18,262 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-11 19:47:18,262 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 304 transitions. [2021-03-11 19:47:18,262 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 101.33333333333333) internal successors, (304), 3 states have internal predecessors, (304), 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) [2021-03-11 19:47:18,263 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 152.0) internal successors, (608), 4 states have internal predecessors, (608), 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) [2021-03-11 19:47:18,263 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 152.0) internal successors, (608), 4 states have internal predecessors, (608), 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) [2021-03-11 19:47:18,263 INFO L185 Difference]: Start difference. First operand has 48 places, 58 transitions, 390 flow. Second operand 3 states and 304 transitions. [2021-03-11 19:47:18,263 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 50 places, 97 transitions, 842 flow [2021-03-11 19:47:18,268 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 49 places, 97 transitions, 834 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-03-11 19:47:18,269 INFO L241 Difference]: Finished difference. Result has 51 places, 87 transitions, 832 flow [2021-03-11 19:47:18,269 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=152, PETRI_DIFFERENCE_MINUEND_FLOW=386, PETRI_DIFFERENCE_MINUEND_PLACES=47, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=58, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=21, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=832, PETRI_PLACES=51, PETRI_TRANSITIONS=87} [2021-03-11 19:47:18,269 INFO L335 CegarLoopForPetriNet]: 42 programPoint places, 9 predicate places. [2021-03-11 19:47:18,269 INFO L480 AbstractCegarLoop]: Abstraction has has 51 places, 87 transitions, 832 flow [2021-03-11 19:47:18,269 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 92.33333333333333) internal successors, (277), 3 states have internal predecessors, (277), 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) [2021-03-11 19:47:18,269 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-11 19:47:18,269 INFO L255 CegarLoopForPetriNet]: trace histogram [4, 3, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 19:47:18,269 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2021-03-11 19:47:18,269 INFO L428 AbstractCegarLoop]: === Iteration 8 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-11 19:47:18,269 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 19:47:18,269 INFO L82 PathProgramCache]: Analyzing trace with hash -1101900970, now seen corresponding path program 1 times [2021-03-11 19:47:18,270 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 19:47:18,270 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2118547532] [2021-03-11 19:47:18,270 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 19:47:18,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 19:47:18,279 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 19:47:18,279 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 19:47:18,279 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 19:47:18,280 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-11 19:47:18,281 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 19:47:18,282 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-11 19:47:18,284 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2021-03-11 19:47:18,284 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2118547532] [2021-03-11 19:47:18,284 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 19:47:18,284 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-11 19:47:18,284 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [432005220] [2021-03-11 19:47:18,285 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-03-11 19:47:18,285 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 19:47:18,285 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-03-11 19:47:18,285 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-03-11 19:47:18,286 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 91 out of 152 [2021-03-11 19:47:18,286 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 51 places, 87 transitions, 832 flow. Second operand has 4 states, 4 states have (on average 92.25) internal successors, (369), 4 states have internal predecessors, (369), 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) [2021-03-11 19:47:18,286 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-11 19:47:18,286 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 91 of 152 [2021-03-11 19:47:18,286 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-11 19:47:20,230 INFO L129 PetriNetUnfolder]: 22378/30595 cut-off events. [2021-03-11 19:47:20,230 INFO L130 PetriNetUnfolder]: For 101935/708986 co-relation queries the response was YES. [2021-03-11 19:47:20,417 INFO L84 FinitePrefix]: Finished finitePrefix Result has 129103 conditions, 30595 events. 22378/30595 cut-off events. For 101935/708986 co-relation queries the response was YES. Maximal size of possible extension queue 1452. Compared 182254 event pairs, 4442 based on Foata normal form. 1809/28022 useless extension candidates. Maximal degree in co-relation 129078. Up to 24691 conditions per place. [2021-03-11 19:47:20,580 INFO L132 encePairwiseOnDemand]: 150/152 looper letters, 108 selfloop transitions, 8 changer transitions 0/124 dead transitions. [2021-03-11 19:47:20,580 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 52 places, 124 transitions, 1384 flow [2021-03-11 19:47:20,580 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-11 19:47:20,581 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-03-11 19:47:20,581 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 302 transitions. [2021-03-11 19:47:20,581 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.6622807017543859 [2021-03-11 19:47:20,581 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 302 transitions. [2021-03-11 19:47:20,581 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 302 transitions. [2021-03-11 19:47:20,581 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-11 19:47:20,581 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 302 transitions. [2021-03-11 19:47:20,582 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 100.66666666666667) internal successors, (302), 3 states have internal predecessors, (302), 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) [2021-03-11 19:47:20,582 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 152.0) internal successors, (608), 4 states have internal predecessors, (608), 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) [2021-03-11 19:47:20,582 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 152.0) internal successors, (608), 4 states have internal predecessors, (608), 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) [2021-03-11 19:47:20,582 INFO L185 Difference]: Start difference. First operand has 51 places, 87 transitions, 832 flow. Second operand 3 states and 302 transitions. [2021-03-11 19:47:20,583 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 52 places, 124 transitions, 1384 flow [2021-03-11 19:47:20,657 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 50 places, 124 transitions, 1310 flow, removed 0 selfloop flow, removed 2 redundant places. [2021-03-11 19:47:20,658 INFO L241 Difference]: Finished difference. Result has 50 places, 86 transitions, 770 flow [2021-03-11 19:47:20,658 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=152, PETRI_DIFFERENCE_MINUEND_FLOW=754, PETRI_DIFFERENCE_MINUEND_PLACES=48, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=86, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=78, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=770, PETRI_PLACES=50, PETRI_TRANSITIONS=86} [2021-03-11 19:47:20,658 INFO L335 CegarLoopForPetriNet]: 42 programPoint places, 8 predicate places. [2021-03-11 19:47:20,658 INFO L480 AbstractCegarLoop]: Abstraction has has 50 places, 86 transitions, 770 flow [2021-03-11 19:47:20,658 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 92.25) internal successors, (369), 4 states have internal predecessors, (369), 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) [2021-03-11 19:47:20,659 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-11 19:47:20,659 INFO L255 CegarLoopForPetriNet]: trace histogram [5, 4, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 19:47:20,659 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2021-03-11 19:47:20,659 INFO L428 AbstractCegarLoop]: === Iteration 9 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-11 19:47:20,659 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 19:47:20,659 INFO L82 PathProgramCache]: Analyzing trace with hash 1794831532, now seen corresponding path program 1 times [2021-03-11 19:47:20,659 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 19:47:20,659 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1240048876] [2021-03-11 19:47:20,659 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 19:47:20,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 19:47:20,671 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 19:47:20,673 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 19:47:20,674 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 19:47:20,674 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-11 19:47:20,676 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2021-03-11 19:47:20,676 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1240048876] [2021-03-11 19:47:20,676 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 19:47:20,676 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-03-11 19:47:20,676 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2103106432] [2021-03-11 19:47:20,676 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-03-11 19:47:20,676 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 19:47:20,676 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-03-11 19:47:20,677 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-11 19:47:20,678 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 90 out of 152 [2021-03-11 19:47:20,678 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 50 places, 86 transitions, 770 flow. Second operand has 3 states, 3 states have (on average 91.33333333333333) internal successors, (274), 3 states have internal predecessors, (274), 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) [2021-03-11 19:47:20,678 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-11 19:47:20,678 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 90 of 152 [2021-03-11 19:47:20,678 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-11 19:47:23,557 INFO L129 PetriNetUnfolder]: 29279/40671 cut-off events. [2021-03-11 19:47:23,557 INFO L130 PetriNetUnfolder]: For 130588/146194 co-relation queries the response was YES. [2021-03-11 19:47:23,769 INFO L84 FinitePrefix]: Finished finitePrefix Result has 165259 conditions, 40671 events. 29279/40671 cut-off events. For 130588/146194 co-relation queries the response was YES. Maximal size of possible extension queue 2020. Compared 256973 event pairs, 8232 based on Foata normal form. 66/35849 useless extension candidates. Maximal degree in co-relation 165234. Up to 30318 conditions per place. [2021-03-11 19:47:24,000 INFO L132 encePairwiseOnDemand]: 144/152 looper letters, 72 selfloop transitions, 65 changer transitions 0/145 dead transitions. [2021-03-11 19:47:24,000 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 52 places, 145 transitions, 1602 flow [2021-03-11 19:47:24,002 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-11 19:47:24,002 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-03-11 19:47:24,002 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 299 transitions. [2021-03-11 19:47:24,002 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.6557017543859649 [2021-03-11 19:47:24,002 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 299 transitions. [2021-03-11 19:47:24,002 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 299 transitions. [2021-03-11 19:47:24,003 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-11 19:47:24,003 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 299 transitions. [2021-03-11 19:47:24,003 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 99.66666666666667) internal successors, (299), 3 states have internal predecessors, (299), 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) [2021-03-11 19:47:24,004 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 152.0) internal successors, (608), 4 states have internal predecessors, (608), 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) [2021-03-11 19:47:24,004 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 152.0) internal successors, (608), 4 states have internal predecessors, (608), 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) [2021-03-11 19:47:24,004 INFO L185 Difference]: Start difference. First operand has 50 places, 86 transitions, 770 flow. Second operand 3 states and 299 transitions. [2021-03-11 19:47:24,004 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 52 places, 145 transitions, 1602 flow [2021-03-11 19:47:24,015 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 51 places, 145 transitions, 1586 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-03-11 19:47:24,017 INFO L241 Difference]: Finished difference. Result has 53 places, 135 transitions, 1636 flow [2021-03-11 19:47:24,017 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=152, PETRI_DIFFERENCE_MINUEND_FLOW=762, PETRI_DIFFERENCE_MINUEND_PLACES=49, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=86, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=16, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=21, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1636, PETRI_PLACES=53, PETRI_TRANSITIONS=135} [2021-03-11 19:47:24,017 INFO L335 CegarLoopForPetriNet]: 42 programPoint places, 11 predicate places. [2021-03-11 19:47:24,017 INFO L480 AbstractCegarLoop]: Abstraction has has 53 places, 135 transitions, 1636 flow [2021-03-11 19:47:24,018 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 91.33333333333333) internal successors, (274), 3 states have internal predecessors, (274), 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) [2021-03-11 19:47:24,018 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-11 19:47:24,018 INFO L255 CegarLoopForPetriNet]: trace histogram [5, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 19:47:24,018 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2021-03-11 19:47:24,018 INFO L428 AbstractCegarLoop]: === Iteration 10 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-11 19:47:24,018 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 19:47:24,018 INFO L82 PathProgramCache]: Analyzing trace with hash -194793745, now seen corresponding path program 1 times [2021-03-11 19:47:24,018 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 19:47:24,018 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [587269482] [2021-03-11 19:47:24,018 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 19:47:24,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 19:47:24,027 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 19:47:24,027 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 19:47:24,028 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 19:47:24,028 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-11 19:47:24,030 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 19:47:24,030 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-11 19:47:24,033 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2021-03-11 19:47:24,033 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [587269482] [2021-03-11 19:47:24,033 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 19:47:24,033 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-11 19:47:24,033 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2011024564] [2021-03-11 19:47:24,034 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-03-11 19:47:24,034 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 19:47:24,034 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-03-11 19:47:24,034 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-03-11 19:47:24,035 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 90 out of 152 [2021-03-11 19:47:24,035 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 53 places, 135 transitions, 1636 flow. Second operand has 4 states, 4 states have (on average 91.25) internal successors, (365), 4 states have internal predecessors, (365), 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) [2021-03-11 19:47:24,035 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-11 19:47:24,035 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 90 of 152 [2021-03-11 19:47:24,035 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-11 19:47:26,601 INFO L129 PetriNetUnfolder]: 23432/32857 cut-off events. [2021-03-11 19:47:26,601 INFO L130 PetriNetUnfolder]: For 150390/179659 co-relation queries the response was YES. [2021-03-11 19:47:26,771 INFO L84 FinitePrefix]: Finished finitePrefix Result has 159536 conditions, 32857 events. 23432/32857 cut-off events. For 150390/179659 co-relation queries the response was YES. Maximal size of possible extension queue 1621. Compared 207625 event pairs, 5734 based on Foata normal form. 2061/32513 useless extension candidates. Maximal degree in co-relation 159510. Up to 25613 conditions per place. [2021-03-11 19:47:26,935 INFO L132 encePairwiseOnDemand]: 150/152 looper letters, 167 selfloop transitions, 16 changer transitions 0/191 dead transitions. [2021-03-11 19:47:26,935 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 54 places, 191 transitions, 2630 flow [2021-03-11 19:47:26,935 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-11 19:47:26,935 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-03-11 19:47:26,936 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 297 transitions. [2021-03-11 19:47:26,936 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.6513157894736842 [2021-03-11 19:47:26,936 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 297 transitions. [2021-03-11 19:47:26,936 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 297 transitions. [2021-03-11 19:47:26,936 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-11 19:47:26,936 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 297 transitions. [2021-03-11 19:47:26,937 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 99.0) internal successors, (297), 3 states have internal predecessors, (297), 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) [2021-03-11 19:47:26,937 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 152.0) internal successors, (608), 4 states have internal predecessors, (608), 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) [2021-03-11 19:47:26,937 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 152.0) internal successors, (608), 4 states have internal predecessors, (608), 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) [2021-03-11 19:47:26,937 INFO L185 Difference]: Start difference. First operand has 53 places, 135 transitions, 1636 flow. Second operand 3 states and 297 transitions. [2021-03-11 19:47:26,937 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 54 places, 191 transitions, 2630 flow [2021-03-11 19:47:27,063 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 52 places, 191 transitions, 2500 flow, removed 0 selfloop flow, removed 2 redundant places. [2021-03-11 19:47:27,066 INFO L241 Difference]: Finished difference. Result has 52 places, 134 transitions, 1534 flow [2021-03-11 19:47:27,066 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=152, PETRI_DIFFERENCE_MINUEND_FLOW=1502, PETRI_DIFFERENCE_MINUEND_PLACES=50, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=134, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=16, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=118, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1534, PETRI_PLACES=52, PETRI_TRANSITIONS=134} [2021-03-11 19:47:27,066 INFO L335 CegarLoopForPetriNet]: 42 programPoint places, 10 predicate places. [2021-03-11 19:47:27,066 INFO L480 AbstractCegarLoop]: Abstraction has has 52 places, 134 transitions, 1534 flow [2021-03-11 19:47:27,066 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 91.25) internal successors, (365), 4 states have internal predecessors, (365), 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) [2021-03-11 19:47:27,066 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-11 19:47:27,066 INFO L255 CegarLoopForPetriNet]: trace histogram [6, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 19:47:27,066 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2021-03-11 19:47:27,066 INFO L428 AbstractCegarLoop]: === Iteration 11 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-11 19:47:27,067 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 19:47:27,067 INFO L82 PathProgramCache]: Analyzing trace with hash 1636454707, now seen corresponding path program 1 times [2021-03-11 19:47:27,067 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 19:47:27,067 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [356901655] [2021-03-11 19:47:27,067 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 19:47:27,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 19:47:27,074 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 19:47:27,074 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 19:47:27,074 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 19:47:27,075 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-11 19:47:27,077 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2021-03-11 19:47:27,077 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [356901655] [2021-03-11 19:47:27,077 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 19:47:27,077 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-03-11 19:47:27,077 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2141958905] [2021-03-11 19:47:27,077 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-03-11 19:47:27,077 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 19:47:27,078 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-03-11 19:47:27,078 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-11 19:47:27,078 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 91 out of 152 [2021-03-11 19:47:27,078 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 52 places, 134 transitions, 1534 flow. Second operand has 3 states, 3 states have (on average 92.33333333333333) internal successors, (277), 3 states have internal predecessors, (277), 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) [2021-03-11 19:47:27,078 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-11 19:47:27,078 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 91 of 152 [2021-03-11 19:47:27,078 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-11 19:47:30,848 INFO L129 PetriNetUnfolder]: 32556/46210 cut-off events. [2021-03-11 19:47:30,848 INFO L130 PetriNetUnfolder]: For 199147/271477 co-relation queries the response was YES. [2021-03-11 19:47:31,137 INFO L84 FinitePrefix]: Finished finitePrefix Result has 218971 conditions, 46210 events. 32556/46210 cut-off events. For 199147/271477 co-relation queries the response was YES. Maximal size of possible extension queue 2839. Compared 319910 event pairs, 9195 based on Foata normal form. 103/43973 useless extension candidates. Maximal degree in co-relation 218945. Up to 35925 conditions per place. [2021-03-11 19:47:31,563 INFO L132 encePairwiseOnDemand]: 144/152 looper letters, 104 selfloop transitions, 113 changer transitions 0/225 dead transitions. [2021-03-11 19:47:31,563 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 54 places, 225 transitions, 3066 flow [2021-03-11 19:47:31,564 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-11 19:47:31,564 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-03-11 19:47:31,564 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 300 transitions. [2021-03-11 19:47:31,565 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.6578947368421053 [2021-03-11 19:47:31,565 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 300 transitions. [2021-03-11 19:47:31,565 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 300 transitions. [2021-03-11 19:47:31,565 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-11 19:47:31,565 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 300 transitions. [2021-03-11 19:47:31,565 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 100.0) internal successors, (300), 3 states have internal predecessors, (300), 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) [2021-03-11 19:47:31,566 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 152.0) internal successors, (608), 4 states have internal predecessors, (608), 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) [2021-03-11 19:47:31,566 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 152.0) internal successors, (608), 4 states have internal predecessors, (608), 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) [2021-03-11 19:47:31,566 INFO L185 Difference]: Start difference. First operand has 52 places, 134 transitions, 1534 flow. Second operand 3 states and 300 transitions. [2021-03-11 19:47:31,566 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 54 places, 225 transitions, 3066 flow [2021-03-11 19:47:31,583 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 53 places, 225 transitions, 3034 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-03-11 19:47:31,586 INFO L241 Difference]: Finished difference. Result has 55 places, 215 transitions, 3176 flow [2021-03-11 19:47:31,587 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=152, PETRI_DIFFERENCE_MINUEND_FLOW=1518, PETRI_DIFFERENCE_MINUEND_PLACES=51, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=134, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=32, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=21, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=3176, PETRI_PLACES=55, PETRI_TRANSITIONS=215} [2021-03-11 19:47:31,587 INFO L335 CegarLoopForPetriNet]: 42 programPoint places, 13 predicate places. [2021-03-11 19:47:31,587 INFO L480 AbstractCegarLoop]: Abstraction has has 55 places, 215 transitions, 3176 flow [2021-03-11 19:47:31,587 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 92.33333333333333) internal successors, (277), 3 states have internal predecessors, (277), 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) [2021-03-11 19:47:31,587 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-11 19:47:31,587 INFO L255 CegarLoopForPetriNet]: trace histogram [7, 6, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 19:47:31,587 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2021-03-11 19:47:31,587 INFO L428 AbstractCegarLoop]: === Iteration 12 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-11 19:47:31,588 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 19:47:31,588 INFO L82 PathProgramCache]: Analyzing trace with hash -809653845, now seen corresponding path program 1 times [2021-03-11 19:47:31,588 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 19:47:31,588 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1758281163] [2021-03-11 19:47:31,588 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 19:47:31,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-03-11 19:47:31,593 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-03-11 19:47:31,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-03-11 19:47:31,598 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-03-11 19:47:31,601 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-03-11 19:47:31,601 INFO L620 BasicCegarLoop]: Counterexample might be feasible [2021-03-11 19:47:31,601 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2021-03-11 19:47:31,602 WARN L342 ceAbstractionStarter]: 6 thread instances were not sufficient, I will increase this number and restart the analysis [2021-03-11 19:47:31,602 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 7 thread instances. [2021-03-11 19:47:31,613 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of7ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:47:31,613 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of7ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:47:31,613 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of7ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:47:31,613 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of7ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:47:31,613 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of7ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:47:31,614 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of7ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:47:31,614 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of7ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:47:31,614 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of7ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:47:31,614 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of7ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:47:31,614 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of7ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:47:31,614 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of7ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:47:31,614 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of7ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:47:31,614 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of7ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:47:31,614 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of7ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:47:31,614 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of7ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:47:31,614 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of7ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:47:31,614 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of7ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:47:31,614 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of7ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:47:31,614 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of7ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:47:31,614 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of7ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:47:31,614 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of7ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:47:31,614 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of7ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:47:31,615 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of7ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:47:31,615 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of7ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:47:31,615 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of7ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:47:31,615 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of7ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:47:31,615 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of7ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:47:31,615 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of7ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:47:31,615 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread6of7ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:47:31,615 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread6of7ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:47:31,615 WARN L313 ript$VariableManager]: TermVariabe thr1Thread6of7ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:47:31,615 WARN L313 ript$VariableManager]: TermVariabe thr1Thread6of7ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:47:31,616 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread6of7ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:47:31,616 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread6of7ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:47:31,616 WARN L313 ript$VariableManager]: TermVariabe thr1Thread6of7ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:47:31,616 WARN L313 ript$VariableManager]: TermVariabe thr1Thread6of7ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:47:31,616 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread6of7ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:47:31,616 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread6of7ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:47:31,616 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread6of7ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:47:31,616 WARN L313 ript$VariableManager]: TermVariabe thr1Thread6of7ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:47:31,616 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread6of7ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:47:31,616 WARN L313 ript$VariableManager]: TermVariabe thr1Thread6of7ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:47:31,616 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread6of7ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:47:31,616 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread6of7ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:47:31,616 WARN L313 ript$VariableManager]: TermVariabe thr1Thread6of7ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:47:31,616 WARN L313 ript$VariableManager]: TermVariabe thr1Thread6of7ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:47:31,616 WARN L313 ript$VariableManager]: TermVariabe thr1Thread6of7ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:47:31,616 WARN L313 ript$VariableManager]: TermVariabe thr1Thread6of7ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:47:31,616 WARN L313 ript$VariableManager]: TermVariabe thr1Thread6of7ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:47:31,616 WARN L313 ript$VariableManager]: TermVariabe thr1Thread6of7ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:47:31,617 WARN L313 ript$VariableManager]: TermVariabe thr1Thread6of7ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:47:31,617 WARN L313 ript$VariableManager]: TermVariabe thr1Thread6of7ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:47:31,617 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread6of7ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:47:31,617 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread6of7ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:47:31,617 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread6of7ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:47:31,617 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread6of7ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:47:31,618 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of7ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:47:31,618 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of7ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:47:31,618 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of7ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:47:31,618 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of7ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:47:31,618 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of7ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:47:31,618 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of7ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:47:31,618 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of7ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:47:31,618 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of7ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:47:31,618 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of7ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:47:31,619 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of7ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:47:31,619 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of7ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:47:31,619 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of7ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:47:31,619 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of7ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:47:31,619 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of7ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:47:31,619 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of7ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:47:31,619 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of7ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:47:31,619 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of7ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:47:31,619 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of7ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:47:31,619 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of7ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:47:31,619 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of7ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:47:31,619 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of7ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:47:31,619 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of7ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:47:31,619 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of7ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:47:31,619 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of7ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:47:31,619 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of7ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:47:31,619 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of7ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:47:31,620 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of7ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:47:31,620 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of7ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:47:31,620 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of7ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:47:31,620 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of7ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:47:31,620 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of7ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:47:31,620 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of7ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:47:31,620 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of7ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:47:31,620 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of7ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:47:31,620 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of7ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:47:31,620 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of7ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:47:31,620 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of7ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:47:31,620 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of7ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:47:31,620 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of7ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:47:31,620 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of7ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:47:31,620 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of7ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:47:31,620 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of7ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:47:31,620 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of7ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:47:31,620 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of7ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:47:31,620 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of7ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:47:31,621 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of7ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:47:31,621 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of7ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:47:31,621 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of7ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:47:31,621 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of7ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:47:31,621 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of7ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:47:31,621 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of7ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:47:31,621 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of7ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:47:31,621 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of7ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:47:31,621 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of7ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:47:31,621 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of7ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:47:31,621 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of7ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:47:31,621 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of7ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:47:31,621 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of7ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:47:31,621 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of7ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:47:31,621 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of7ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:47:31,621 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of7ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:47:31,621 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of7ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:47:31,622 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of7ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:47:31,622 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of7ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:47:31,622 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of7ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:47:31,622 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of7ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:47:31,622 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of7ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:47:31,622 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of7ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:47:31,622 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of7ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:47:31,622 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of7ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:47:31,622 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of7ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:47:31,622 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of7ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:47:31,622 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of7ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:47:31,622 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of7ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:47:31,622 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of7ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:47:31,622 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of7ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:47:31,622 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of7ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:47:31,622 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of7ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:47:31,622 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of7ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:47:31,622 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of7ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:47:31,623 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of7ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:47:31,623 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of7ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:47:31,623 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of7ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:47:31,623 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of7ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:47:31,623 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of7ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:47:31,623 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of7ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:47:31,623 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of7ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:47:31,623 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of7ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:47:31,623 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of7ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:47:31,623 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of7ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:47:31,623 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of7ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:47:31,623 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of7ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:47:31,623 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of7ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:47:31,623 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of7ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:47:31,623 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of7ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:47:31,623 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of7ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:47:31,623 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of7ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:47:31,624 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of7ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:47:31,624 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of7ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:47:31,624 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of7ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:47:31,624 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of7ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:47:31,624 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of7ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:47:31,624 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of7ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:47:31,624 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of7ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:47:31,624 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of7ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:47:31,624 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of7ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:47:31,624 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of7ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:47:31,624 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of7ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:47:31,624 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of7ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:47:31,624 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of7ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:47:31,624 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of7ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:47:31,624 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of7ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:47:31,624 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread7of7ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:47:31,625 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread7of7ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:47:31,625 WARN L313 ript$VariableManager]: TermVariabe thr1Thread7of7ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:47:31,625 WARN L313 ript$VariableManager]: TermVariabe thr1Thread7of7ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:47:31,625 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread7of7ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:47:31,625 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread7of7ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:47:31,625 WARN L313 ript$VariableManager]: TermVariabe thr1Thread7of7ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:47:31,625 WARN L313 ript$VariableManager]: TermVariabe thr1Thread7of7ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:47:31,625 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread7of7ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:47:31,625 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread7of7ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:47:31,625 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread7of7ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:47:31,625 WARN L313 ript$VariableManager]: TermVariabe thr1Thread7of7ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:47:31,625 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread7of7ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:47:31,625 WARN L313 ript$VariableManager]: TermVariabe thr1Thread7of7ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:47:31,625 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread7of7ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:47:31,625 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread7of7ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:47:31,625 WARN L313 ript$VariableManager]: TermVariabe thr1Thread7of7ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:47:31,625 WARN L313 ript$VariableManager]: TermVariabe thr1Thread7of7ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:47:31,625 WARN L313 ript$VariableManager]: TermVariabe thr1Thread7of7ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:47:31,625 WARN L313 ript$VariableManager]: TermVariabe thr1Thread7of7ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:47:31,626 WARN L313 ript$VariableManager]: TermVariabe thr1Thread7of7ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:47:31,626 WARN L313 ript$VariableManager]: TermVariabe thr1Thread7of7ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:47:31,626 WARN L313 ript$VariableManager]: TermVariabe thr1Thread7of7ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:47:31,626 WARN L313 ript$VariableManager]: TermVariabe thr1Thread7of7ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:47:31,626 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread7of7ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:47:31,626 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread7of7ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:47:31,626 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread7of7ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:47:31,626 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread7of7ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:47:31,626 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of7ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:47:31,626 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of7ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:47:31,626 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of7ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:47:31,626 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of7ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:47:31,626 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of7ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:47:31,627 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of7ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:47:31,628 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of7ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:47:31,628 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of7ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:47:31,628 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of7ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:47:31,628 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of7ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:47:31,628 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of7ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:47:31,628 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of7ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:47:31,638 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of7ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:47:31,638 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of7ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:47:31,638 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of7ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:47:31,639 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of7ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:47:31,639 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of7ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:47:31,639 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of7ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:47:31,639 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of7ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:47:31,640 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of7ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:47:31,640 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of7ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:47:31,640 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of7ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:47:31,640 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of7ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:47:31,640 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of7ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:47:31,640 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of7ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:47:31,641 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of7ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:47:31,641 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of7ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:47:31,641 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of7ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:47:31,641 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of7ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:47:31,641 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of7ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:47:31,641 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread6of7ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:47:31,642 WARN L313 ript$VariableManager]: TermVariabe thr1Thread6of7ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:47:31,642 WARN L313 ript$VariableManager]: TermVariabe thr1Thread6of7ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:47:31,642 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread6of7ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:47:31,642 WARN L313 ript$VariableManager]: TermVariabe thr1Thread6of7ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:47:31,642 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread6of7ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:47:31,642 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread7of7ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:47:31,642 WARN L313 ript$VariableManager]: TermVariabe thr1Thread7of7ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:47:31,643 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread7of7ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:47:31,643 WARN L313 ript$VariableManager]: TermVariabe thr1Thread7of7ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:47:31,643 WARN L313 ript$VariableManager]: TermVariabe thr1Thread7of7ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:47:31,643 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread7of7ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:47:31,643 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-03-11 19:47:31,644 INFO L253 AbstractCegarLoop]: Starting to check reachability of 9 error locations. [2021-03-11 19:47:31,644 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-03-11 19:47:31,644 INFO L377 AbstractCegarLoop]: Hoare is false [2021-03-11 19:47:31,644 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-03-11 19:47:31,644 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-03-11 19:47:31,644 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-03-11 19:47:31,644 INFO L381 AbstractCegarLoop]: Difference is false [2021-03-11 19:47:31,644 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-03-11 19:47:31,644 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-03-11 19:47:31,645 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 115 places, 101 transitions, 279 flow [2021-03-11 19:47:31,653 INFO L129 PetriNetUnfolder]: 8/163 cut-off events. [2021-03-11 19:47:31,653 INFO L130 PetriNetUnfolder]: For 77/77 co-relation queries the response was YES. [2021-03-11 19:47:31,654 INFO L84 FinitePrefix]: Finished finitePrefix Result has 213 conditions, 163 events. 8/163 cut-off events. For 77/77 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 430 event pairs, 0 based on Foata normal form. 0/140 useless extension candidates. Maximal degree in co-relation 170. Up to 16 conditions per place. [2021-03-11 19:47:31,654 INFO L82 GeneralOperation]: Start removeDead. Operand has 115 places, 101 transitions, 279 flow [2021-03-11 19:47:31,655 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 115 places, 101 transitions, 279 flow [2021-03-11 19:47:31,655 INFO L118 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-03-11 19:47:31,655 INFO L133 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 115 places, 101 transitions, 279 flow [2021-03-11 19:47:31,655 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 115 places, 101 transitions, 279 flow [2021-03-11 19:47:31,655 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 115 places, 101 transitions, 279 flow [2021-03-11 19:47:31,663 INFO L129 PetriNetUnfolder]: 8/163 cut-off events. [2021-03-11 19:47:31,664 INFO L130 PetriNetUnfolder]: For 77/77 co-relation queries the response was YES. [2021-03-11 19:47:31,664 INFO L84 FinitePrefix]: Finished finitePrefix Result has 213 conditions, 163 events. 8/163 cut-off events. For 77/77 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 450 event pairs, 0 based on Foata normal form. 0/140 useless extension candidates. Maximal degree in co-relation 170. Up to 16 conditions per place. [2021-03-11 19:47:31,668 INFO L116 LiptonReduction]: Number of co-enabled transitions 6020 [2021-03-11 19:47:33,542 INFO L131 LiptonReduction]: Checked pairs total: 9833 [2021-03-11 19:47:33,542 INFO L133 LiptonReduction]: Total number of compositions: 69 [2021-03-11 19:47:33,542 INFO L182 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 1887 [2021-03-11 19:47:33,543 INFO L129 PetriNetUnfolder]: 0/7 cut-off events. [2021-03-11 19:47:33,544 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-11 19:47:33,544 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-11 19:47:33,544 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2021-03-11 19:47:33,544 INFO L428 AbstractCegarLoop]: === Iteration 1 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-11 19:47:33,544 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 19:47:33,544 INFO L82 PathProgramCache]: Analyzing trace with hash 933179372, now seen corresponding path program 1 times [2021-03-11 19:47:33,544 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 19:47:33,544 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [937408769] [2021-03-11 19:47:33,544 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 19:47:33,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 19:47:33,550 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 19:47:33,551 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 19:47:33,551 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 19:47:33,551 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-11 19:47:33,553 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 19:47:33,554 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [937408769] [2021-03-11 19:47:33,554 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 19:47:33,554 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-03-11 19:47:33,554 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1181923823] [2021-03-11 19:47:33,554 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-03-11 19:47:33,554 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 19:47:33,554 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-03-11 19:47:33,554 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-11 19:47:33,555 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 103 out of 170 [2021-03-11 19:47:33,555 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 48 places, 33 transitions, 143 flow. Second operand has 3 states, 3 states have (on average 104.33333333333333) internal successors, (313), 3 states have internal predecessors, (313), 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) [2021-03-11 19:47:33,555 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-11 19:47:33,555 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 103 of 170 [2021-03-11 19:47:33,555 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-11 19:47:44,036 INFO L129 PetriNetUnfolder]: 102384/126980 cut-off events. [2021-03-11 19:47:44,036 INFO L130 PetriNetUnfolder]: For 78/78 co-relation queries the response was YES. [2021-03-11 19:47:44,730 INFO L84 FinitePrefix]: Finished finitePrefix Result has 253989 conditions, 126980 events. 102384/126980 cut-off events. For 78/78 co-relation queries the response was YES. Maximal size of possible extension queue 5174. Compared 697271 event pairs, 60078 based on Foata normal form. 24586/109601 useless extension candidates. Maximal degree in co-relation 253914. Up to 90096 conditions per place. [2021-03-11 19:47:45,285 INFO L132 encePairwiseOnDemand]: 160/170 looper letters, 34 selfloop transitions, 8 changer transitions 0/51 dead transitions. [2021-03-11 19:47:45,286 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 49 places, 51 transitions, 263 flow [2021-03-11 19:47:45,286 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-11 19:47:45,286 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-03-11 19:47:45,287 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 354 transitions. [2021-03-11 19:47:45,287 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.6941176470588235 [2021-03-11 19:47:45,287 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 354 transitions. [2021-03-11 19:47:45,287 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 354 transitions. [2021-03-11 19:47:45,287 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-11 19:47:45,287 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 354 transitions. [2021-03-11 19:47:45,287 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 118.0) internal successors, (354), 3 states have internal predecessors, (354), 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) [2021-03-11 19:47:45,288 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 170.0) internal successors, (680), 4 states have internal predecessors, (680), 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) [2021-03-11 19:47:45,288 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 170.0) internal successors, (680), 4 states have internal predecessors, (680), 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) [2021-03-11 19:47:45,288 INFO L185 Difference]: Start difference. First operand has 48 places, 33 transitions, 143 flow. Second operand 3 states and 354 transitions. [2021-03-11 19:47:45,288 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 49 places, 51 transitions, 263 flow [2021-03-11 19:47:45,289 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 49 places, 51 transitions, 221 flow, removed 21 selfloop flow, removed 0 redundant places. [2021-03-11 19:47:45,289 INFO L241 Difference]: Finished difference. Result has 51 places, 39 transitions, 161 flow [2021-03-11 19:47:45,289 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=170, PETRI_DIFFERENCE_MINUEND_FLOW=99, PETRI_DIFFERENCE_MINUEND_PLACES=47, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=32, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=24, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=161, PETRI_PLACES=51, PETRI_TRANSITIONS=39} [2021-03-11 19:47:45,289 INFO L335 CegarLoopForPetriNet]: 48 programPoint places, 3 predicate places. [2021-03-11 19:47:45,290 INFO L480 AbstractCegarLoop]: Abstraction has has 51 places, 39 transitions, 161 flow [2021-03-11 19:47:45,290 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 104.33333333333333) internal successors, (313), 3 states have internal predecessors, (313), 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) [2021-03-11 19:47:45,290 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-11 19:47:45,290 INFO L255 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1] [2021-03-11 19:47:45,290 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2021-03-11 19:47:45,290 INFO L428 AbstractCegarLoop]: === Iteration 2 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-11 19:47:45,290 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 19:47:45,290 INFO L82 PathProgramCache]: Analyzing trace with hash -1130797060, now seen corresponding path program 1 times [2021-03-11 19:47:45,290 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 19:47:45,290 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1992390810] [2021-03-11 19:47:45,290 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 19:47:45,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 19:47:45,297 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 19:47:45,297 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 19:47:45,297 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 19:47:45,298 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-11 19:47:45,300 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-03-11 19:47:45,300 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1992390810] [2021-03-11 19:47:45,300 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 19:47:45,300 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-03-11 19:47:45,300 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [880280443] [2021-03-11 19:47:45,300 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-03-11 19:47:45,300 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 19:47:45,301 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-03-11 19:47:45,301 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-11 19:47:45,301 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 102 out of 170 [2021-03-11 19:47:45,301 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 51 places, 39 transitions, 161 flow. Second operand has 3 states, 3 states have (on average 103.33333333333333) internal successors, (310), 3 states have internal predecessors, (310), 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) [2021-03-11 19:47:45,301 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-11 19:47:45,301 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 102 of 170 [2021-03-11 19:47:45,301 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-11 19:48:02,270 INFO L129 PetriNetUnfolder]: 145585/181435 cut-off events. [2021-03-11 19:48:02,270 INFO L130 PetriNetUnfolder]: For 111433/441390 co-relation queries the response was YES. [2021-03-11 19:48:03,104 INFO L84 FinitePrefix]: Finished finitePrefix Result has 465705 conditions, 181435 events. 145585/181435 cut-off events. For 111433/441390 co-relation queries the response was YES. Maximal size of possible extension queue 6953. Compared 1027894 event pairs, 71028 based on Foata normal form. 1/129140 useless extension candidates. Maximal degree in co-relation 465664. Up to 130733 conditions per place. [2021-03-11 19:48:04,128 INFO L132 encePairwiseOnDemand]: 161/170 looper letters, 41 selfloop transitions, 14 changer transitions 0/64 dead transitions. [2021-03-11 19:48:04,128 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 53 places, 64 transitions, 363 flow [2021-03-11 19:48:04,130 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-11 19:48:04,130 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-03-11 19:48:04,130 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 349 transitions. [2021-03-11 19:48:04,131 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.6843137254901961 [2021-03-11 19:48:04,131 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 349 transitions. [2021-03-11 19:48:04,131 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 349 transitions. [2021-03-11 19:48:04,131 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-11 19:48:04,131 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 349 transitions. [2021-03-11 19:48:04,131 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 116.33333333333333) internal successors, (349), 3 states have internal predecessors, (349), 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) [2021-03-11 19:48:04,132 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 170.0) internal successors, (680), 4 states have internal predecessors, (680), 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) [2021-03-11 19:48:04,132 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 170.0) internal successors, (680), 4 states have internal predecessors, (680), 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) [2021-03-11 19:48:04,132 INFO L185 Difference]: Start difference. First operand has 51 places, 39 transitions, 161 flow. Second operand 3 states and 349 transitions. [2021-03-11 19:48:04,132 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 53 places, 64 transitions, 363 flow [2021-03-11 19:48:08,577 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 51 places, 64 transitions, 333 flow, removed 0 selfloop flow, removed 2 redundant places. [2021-03-11 19:48:08,578 INFO L241 Difference]: Finished difference. Result has 53 places, 51 transitions, 273 flow [2021-03-11 19:48:08,578 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=170, PETRI_DIFFERENCE_MINUEND_FLOW=145, PETRI_DIFFERENCE_MINUEND_PLACES=49, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=39, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=25, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=273, PETRI_PLACES=53, PETRI_TRANSITIONS=51} [2021-03-11 19:48:08,578 INFO L335 CegarLoopForPetriNet]: 48 programPoint places, 5 predicate places. [2021-03-11 19:48:08,578 INFO L480 AbstractCegarLoop]: Abstraction has has 53 places, 51 transitions, 273 flow [2021-03-11 19:48:08,578 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 103.33333333333333) internal successors, (310), 3 states have internal predecessors, (310), 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) [2021-03-11 19:48:08,579 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-11 19:48:08,579 INFO L255 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 19:48:08,579 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2021-03-11 19:48:08,579 INFO L428 AbstractCegarLoop]: === Iteration 3 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-11 19:48:08,579 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 19:48:08,579 INFO L82 PathProgramCache]: Analyzing trace with hash -694968868, now seen corresponding path program 1 times [2021-03-11 19:48:08,579 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 19:48:08,579 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [736292502] [2021-03-11 19:48:08,579 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 19:48:08,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 19:48:08,586 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 19:48:08,586 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 19:48:08,586 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 19:48:08,586 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-11 19:48:08,588 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 19:48:08,589 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-11 19:48:08,591 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-03-11 19:48:08,591 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [736292502] [2021-03-11 19:48:08,591 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 19:48:08,591 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-11 19:48:08,591 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1258821940] [2021-03-11 19:48:08,591 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-03-11 19:48:08,592 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 19:48:08,592 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-03-11 19:48:08,592 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-03-11 19:48:08,592 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 103 out of 170 [2021-03-11 19:48:08,592 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 53 places, 51 transitions, 273 flow. Second operand has 4 states, 4 states have (on average 104.25) internal successors, (417), 4 states have internal predecessors, (417), 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) [2021-03-11 19:48:08,593 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-11 19:48:08,593 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 103 of 170 [2021-03-11 19:48:08,593 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-11 19:48:22,106 INFO L129 PetriNetUnfolder]: 118470/148178 cut-off events. [2021-03-11 19:48:22,106 INFO L130 PetriNetUnfolder]: For 135372/987524 co-relation queries the response was YES. [2021-03-11 19:48:22,811 INFO L84 FinitePrefix]: Finished finitePrefix Result has 442408 conditions, 148178 events. 118470/148178 cut-off events. For 135372/987524 co-relation queries the response was YES. Maximal size of possible extension queue 5570. Compared 858494 event pairs, 20482 based on Foata normal form. 14/109899 useless extension candidates. Maximal degree in co-relation 442383. Up to 121035 conditions per place. [2021-03-11 19:48:23,539 INFO L132 encePairwiseOnDemand]: 168/170 looper letters, 63 selfloop transitions, 2 changer transitions 0/74 dead transitions. [2021-03-11 19:48:23,539 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 54 places, 74 transitions, 511 flow [2021-03-11 19:48:23,540 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-11 19:48:23,540 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-03-11 19:48:23,540 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 350 transitions. [2021-03-11 19:48:23,540 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.6862745098039216 [2021-03-11 19:48:23,540 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 350 transitions. [2021-03-11 19:48:23,540 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 350 transitions. [2021-03-11 19:48:23,540 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-11 19:48:23,540 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 350 transitions. [2021-03-11 19:48:23,543 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 116.66666666666667) internal successors, (350), 3 states have internal predecessors, (350), 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) [2021-03-11 19:48:23,543 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 170.0) internal successors, (680), 4 states have internal predecessors, (680), 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) [2021-03-11 19:48:23,544 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 170.0) internal successors, (680), 4 states have internal predecessors, (680), 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) [2021-03-11 19:48:23,544 INFO L185 Difference]: Start difference. First operand has 53 places, 51 transitions, 273 flow. Second operand 3 states and 350 transitions. [2021-03-11 19:48:23,544 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 54 places, 74 transitions, 511 flow [2021-03-11 19:48:27,361 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 52 places, 74 transitions, 469 flow, removed 0 selfloop flow, removed 2 redundant places. [2021-03-11 19:48:27,362 INFO L241 Difference]: Finished difference. Result has 52 places, 50 transitions, 245 flow [2021-03-11 19:48:27,362 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=170, PETRI_DIFFERENCE_MINUEND_FLOW=241, PETRI_DIFFERENCE_MINUEND_PLACES=50, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=50, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=48, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=245, PETRI_PLACES=52, PETRI_TRANSITIONS=50} [2021-03-11 19:48:27,362 INFO L335 CegarLoopForPetriNet]: 48 programPoint places, 4 predicate places. [2021-03-11 19:48:27,362 INFO L480 AbstractCegarLoop]: Abstraction has has 52 places, 50 transitions, 245 flow [2021-03-11 19:48:27,363 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 104.25) internal successors, (417), 4 states have internal predecessors, (417), 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) [2021-03-11 19:48:27,363 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-11 19:48:27,363 INFO L255 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 19:48:27,363 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43 [2021-03-11 19:48:27,363 INFO L428 AbstractCegarLoop]: === Iteration 4 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-11 19:48:27,363 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 19:48:27,363 INFO L82 PathProgramCache]: Analyzing trace with hash -694966998, now seen corresponding path program 1 times [2021-03-11 19:48:27,363 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 19:48:27,363 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2133586075] [2021-03-11 19:48:27,363 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 19:48:27,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 19:48:27,375 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 19:48:27,375 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 19:48:27,376 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 19:48:27,376 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-11 19:48:27,378 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 19:48:27,378 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-11 19:48:27,381 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-03-11 19:48:27,381 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2133586075] [2021-03-11 19:48:27,381 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 19:48:27,381 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-11 19:48:27,381 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [991665059] [2021-03-11 19:48:27,381 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-03-11 19:48:27,381 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 19:48:27,382 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-03-11 19:48:27,382 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-03-11 19:48:27,382 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 102 out of 170 [2021-03-11 19:48:27,382 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 52 places, 50 transitions, 245 flow. Second operand has 4 states, 4 states have (on average 103.25) internal successors, (413), 4 states have internal predecessors, (413), 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) [2021-03-11 19:48:27,382 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-11 19:48:27,383 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 102 of 170 [2021-03-11 19:48:27,383 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-11 19:48:36,377 INFO L129 PetriNetUnfolder]: 96217/120810 cut-off events. [2021-03-11 19:48:36,377 INFO L130 PetriNetUnfolder]: For 90235/861655 co-relation queries the response was YES. [2021-03-11 19:48:36,934 INFO L84 FinitePrefix]: Finished finitePrefix Result has 347017 conditions, 120810 events. 96217/120810 cut-off events. For 90235/861655 co-relation queries the response was YES. Maximal size of possible extension queue 4418. Compared 687420 event pairs, 15961 based on Foata normal form. 12/89082 useless extension candidates. Maximal degree in co-relation 346974. Up to 98521 conditions per place. [2021-03-11 19:48:37,660 INFO L132 encePairwiseOnDemand]: 168/170 looper letters, 61 selfloop transitions, 2 changer transitions 0/72 dead transitions. [2021-03-11 19:48:37,660 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 53 places, 72 transitions, 463 flow [2021-03-11 19:48:37,661 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-11 19:48:37,661 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-03-11 19:48:37,661 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 345 transitions. [2021-03-11 19:48:37,661 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.6764705882352942 [2021-03-11 19:48:37,661 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 345 transitions. [2021-03-11 19:48:37,661 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 345 transitions. [2021-03-11 19:48:37,661 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-11 19:48:37,661 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 345 transitions. [2021-03-11 19:48:37,662 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 115.0) internal successors, (345), 3 states have internal predecessors, (345), 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) [2021-03-11 19:48:37,662 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 170.0) internal successors, (680), 4 states have internal predecessors, (680), 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) [2021-03-11 19:48:37,662 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 170.0) internal successors, (680), 4 states have internal predecessors, (680), 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) [2021-03-11 19:48:37,662 INFO L185 Difference]: Start difference. First operand has 52 places, 50 transitions, 245 flow. Second operand 3 states and 345 transitions. [2021-03-11 19:48:37,662 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 53 places, 72 transitions, 463 flow [2021-03-11 19:48:37,674 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 52 places, 72 transitions, 460 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-03-11 19:48:37,675 INFO L241 Difference]: Finished difference. Result has 52 places, 49 transitions, 243 flow [2021-03-11 19:48:37,675 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=170, PETRI_DIFFERENCE_MINUEND_FLOW=239, PETRI_DIFFERENCE_MINUEND_PLACES=50, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=49, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=47, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=243, PETRI_PLACES=52, PETRI_TRANSITIONS=49} [2021-03-11 19:48:37,675 INFO L335 CegarLoopForPetriNet]: 48 programPoint places, 4 predicate places. [2021-03-11 19:48:37,675 INFO L480 AbstractCegarLoop]: Abstraction has has 52 places, 49 transitions, 243 flow [2021-03-11 19:48:37,675 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 103.25) internal successors, (413), 4 states have internal predecessors, (413), 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) [2021-03-11 19:48:37,675 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-11 19:48:37,675 INFO L255 CegarLoopForPetriNet]: trace histogram [3, 2, 1, 1, 1, 1, 1, 1] [2021-03-11 19:48:37,675 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44 [2021-03-11 19:48:37,676 INFO L428 AbstractCegarLoop]: === Iteration 5 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-11 19:48:37,676 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 19:48:37,676 INFO L82 PathProgramCache]: Analyzing trace with hash 1991949894, now seen corresponding path program 1 times [2021-03-11 19:48:37,676 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 19:48:37,676 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [387352999] [2021-03-11 19:48:37,676 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 19:48:37,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 19:48:37,683 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 19:48:37,683 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 19:48:37,683 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 19:48:37,684 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-11 19:48:37,685 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2021-03-11 19:48:37,686 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [387352999] [2021-03-11 19:48:37,686 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 19:48:37,686 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-03-11 19:48:37,686 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [803401198] [2021-03-11 19:48:37,686 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-03-11 19:48:37,686 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 19:48:37,686 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-03-11 19:48:37,686 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-11 19:48:37,687 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 103 out of 170 [2021-03-11 19:48:37,687 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 52 places, 49 transitions, 243 flow. Second operand has 3 states, 3 states have (on average 104.33333333333333) internal successors, (313), 3 states have internal predecessors, (313), 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) [2021-03-11 19:48:37,687 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-11 19:48:37,687 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 103 of 170 [2021-03-11 19:48:37,687 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-11 19:48:50,493 INFO L129 PetriNetUnfolder]: 131938/166757 cut-off events. [2021-03-11 19:48:50,493 INFO L130 PetriNetUnfolder]: For 185667/1071608 co-relation queries the response was YES. [2021-03-11 19:48:51,438 INFO L84 FinitePrefix]: Finished finitePrefix Result has 484766 conditions, 166757 events. 131938/166757 cut-off events. For 185667/1071608 co-relation queries the response was YES. Maximal size of possible extension queue 6111. Compared 960826 event pairs, 55856 based on Foata normal form. 4/124511 useless extension candidates. Maximal degree in co-relation 484742. Up to 123233 conditions per place. [2021-03-11 19:48:52,231 INFO L132 encePairwiseOnDemand]: 161/170 looper letters, 48 selfloop transitions, 25 changer transitions 0/82 dead transitions. [2021-03-11 19:48:52,231 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 54 places, 82 transitions, 549 flow [2021-03-11 19:48:52,231 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-11 19:48:52,232 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-03-11 19:48:52,232 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 348 transitions. [2021-03-11 19:48:52,232 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.6823529411764706 [2021-03-11 19:48:52,232 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 348 transitions. [2021-03-11 19:48:52,232 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 348 transitions. [2021-03-11 19:48:52,232 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-11 19:48:52,232 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 348 transitions. [2021-03-11 19:48:52,233 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 116.0) internal successors, (348), 3 states have internal predecessors, (348), 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) [2021-03-11 19:48:52,233 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 170.0) internal successors, (680), 4 states have internal predecessors, (680), 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) [2021-03-11 19:48:52,233 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 170.0) internal successors, (680), 4 states have internal predecessors, (680), 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) [2021-03-11 19:48:52,233 INFO L185 Difference]: Start difference. First operand has 52 places, 49 transitions, 243 flow. Second operand 3 states and 348 transitions. [2021-03-11 19:48:52,233 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 54 places, 82 transitions, 549 flow [2021-03-11 19:48:52,248 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 53 places, 82 transitions, 545 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-03-11 19:48:52,249 INFO L241 Difference]: Finished difference. Result has 55 places, 70 transitions, 511 flow [2021-03-11 19:48:52,249 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=170, PETRI_DIFFERENCE_MINUEND_FLOW=241, PETRI_DIFFERENCE_MINUEND_PLACES=51, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=49, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=24, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=511, PETRI_PLACES=55, PETRI_TRANSITIONS=70} [2021-03-11 19:48:52,249 INFO L335 CegarLoopForPetriNet]: 48 programPoint places, 7 predicate places. [2021-03-11 19:48:52,249 INFO L480 AbstractCegarLoop]: Abstraction has has 55 places, 70 transitions, 511 flow [2021-03-11 19:48:52,249 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 104.33333333333333) internal successors, (313), 3 states have internal predecessors, (313), 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) [2021-03-11 19:48:52,249 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-11 19:48:52,249 INFO L255 CegarLoopForPetriNet]: trace histogram [3, 2, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 19:48:52,249 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable45 [2021-03-11 19:48:52,249 INFO L428 AbstractCegarLoop]: === Iteration 6 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-11 19:48:52,249 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 19:48:52,249 INFO L82 PathProgramCache]: Analyzing trace with hash 1620908726, now seen corresponding path program 1 times [2021-03-11 19:48:52,250 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 19:48:52,250 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [305508975] [2021-03-11 19:48:52,250 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 19:48:52,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 19:48:52,263 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 19:48:52,265 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 19:48:52,265 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 19:48:52,265 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-11 19:48:52,267 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 19:48:52,268 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-11 19:48:52,270 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2021-03-11 19:48:52,270 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [305508975] [2021-03-11 19:48:52,270 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 19:48:52,270 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-11 19:48:52,270 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [771350478] [2021-03-11 19:48:52,271 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-03-11 19:48:52,271 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 19:48:52,271 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-03-11 19:48:52,271 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-03-11 19:48:52,272 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 103 out of 170 [2021-03-11 19:48:52,272 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 55 places, 70 transitions, 511 flow. Second operand has 4 states, 4 states have (on average 104.25) internal successors, (417), 4 states have internal predecessors, (417), 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) [2021-03-11 19:48:52,272 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-11 19:48:52,272 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 103 of 170 [2021-03-11 19:48:52,272 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-11 19:49:02,011 INFO L129 PetriNetUnfolder]: 106386/135070 cut-off events. [2021-03-11 19:49:02,011 INFO L130 PetriNetUnfolder]: For 258736/2539598 co-relation queries the response was YES. [2021-03-11 19:49:02,763 INFO L84 FinitePrefix]: Finished finitePrefix Result has 481245 conditions, 135070 events. 106386/135070 cut-off events. For 258736/2539598 co-relation queries the response was YES. Maximal size of possible extension queue 4879. Compared 787377 event pairs, 18277 based on Foata normal form. 6157/111437 useless extension candidates. Maximal degree in co-relation 481220. Up to 109455 conditions per place. [2021-03-11 19:49:03,435 INFO L132 encePairwiseOnDemand]: 168/170 looper letters, 88 selfloop transitions, 4 changer transitions 0/101 dead transitions. [2021-03-11 19:49:03,435 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 56 places, 101 transitions, 887 flow [2021-03-11 19:49:03,435 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-11 19:49:03,435 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-03-11 19:49:03,436 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 346 transitions. [2021-03-11 19:49:03,436 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.6784313725490196 [2021-03-11 19:49:03,436 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 346 transitions. [2021-03-11 19:49:03,436 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 346 transitions. [2021-03-11 19:49:03,436 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-11 19:49:03,436 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 346 transitions. [2021-03-11 19:49:03,436 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 115.33333333333333) internal successors, (346), 3 states have internal predecessors, (346), 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) [2021-03-11 19:49:03,437 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 170.0) internal successors, (680), 4 states have internal predecessors, (680), 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) [2021-03-11 19:49:03,437 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 170.0) internal successors, (680), 4 states have internal predecessors, (680), 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) [2021-03-11 19:49:03,437 INFO L185 Difference]: Start difference. First operand has 55 places, 70 transitions, 511 flow. Second operand 3 states and 346 transitions. [2021-03-11 19:49:03,437 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 56 places, 101 transitions, 887 flow [2021-03-11 19:49:04,399 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 54 places, 101 transitions, 837 flow, removed 0 selfloop flow, removed 2 redundant places. [2021-03-11 19:49:04,400 INFO L241 Difference]: Finished difference. Result has 54 places, 69 transitions, 465 flow [2021-03-11 19:49:04,400 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=170, PETRI_DIFFERENCE_MINUEND_FLOW=457, PETRI_DIFFERENCE_MINUEND_PLACES=52, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=69, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=65, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=465, PETRI_PLACES=54, PETRI_TRANSITIONS=69} [2021-03-11 19:49:04,400 INFO L335 CegarLoopForPetriNet]: 48 programPoint places, 6 predicate places. [2021-03-11 19:49:04,400 INFO L480 AbstractCegarLoop]: Abstraction has has 54 places, 69 transitions, 465 flow [2021-03-11 19:49:04,400 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 104.25) internal successors, (417), 4 states have internal predecessors, (417), 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) [2021-03-11 19:49:04,400 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-11 19:49:04,400 INFO L255 CegarLoopForPetriNet]: trace histogram [4, 3, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 19:49:04,401 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable46 [2021-03-11 19:49:04,401 INFO L428 AbstractCegarLoop]: === Iteration 7 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-11 19:49:04,401 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 19:49:04,401 INFO L82 PathProgramCache]: Analyzing trace with hash -1534927586, now seen corresponding path program 1 times [2021-03-11 19:49:04,401 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 19:49:04,401 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2055721167] [2021-03-11 19:49:04,401 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 19:49:04,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 19:49:04,410 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 19:49:04,410 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 19:49:04,410 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 19:49:04,410 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-11 19:49:04,413 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2021-03-11 19:49:04,413 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2055721167] [2021-03-11 19:49:04,413 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 19:49:04,413 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-03-11 19:49:04,413 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2011048976] [2021-03-11 19:49:04,413 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-03-11 19:49:04,413 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 19:49:04,413 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-03-11 19:49:04,413 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-11 19:49:04,414 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 103 out of 170 [2021-03-11 19:49:04,414 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 54 places, 69 transitions, 465 flow. Second operand has 3 states, 3 states have (on average 104.33333333333333) internal successors, (313), 3 states have internal predecessors, (313), 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) [2021-03-11 19:49:04,414 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-11 19:49:04,414 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 103 of 170 [2021-03-11 19:49:04,414 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-11 19:49:18,596 INFO L129 PetriNetUnfolder]: 142739/182676 cut-off events. [2021-03-11 19:49:18,597 INFO L130 PetriNetUnfolder]: For 397278/3114682 co-relation queries the response was YES. [2021-03-11 19:49:19,445 INFO L84 FinitePrefix]: Finished finitePrefix Result has 621615 conditions, 182676 events. 142739/182676 cut-off events. For 397278/3114682 co-relation queries the response was YES. Maximal size of possible extension queue 6755. Compared 1091646 event pairs, 52355 based on Foata normal form. 22/144329 useless extension candidates. Maximal degree in co-relation 621590. Up to 136628 conditions per place. [2021-03-11 19:49:20,486 INFO L132 encePairwiseOnDemand]: 161/170 looper letters, 64 selfloop transitions, 45 changer transitions 0/118 dead transitions. [2021-03-11 19:49:20,486 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 56 places, 118 transitions, 1025 flow [2021-03-11 19:49:20,486 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-11 19:49:20,486 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-03-11 19:49:20,487 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 346 transitions. [2021-03-11 19:49:20,487 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.6784313725490196 [2021-03-11 19:49:20,487 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 346 transitions. [2021-03-11 19:49:20,487 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 346 transitions. [2021-03-11 19:49:20,487 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-11 19:49:20,487 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 346 transitions. [2021-03-11 19:49:20,487 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 115.33333333333333) internal successors, (346), 3 states have internal predecessors, (346), 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) [2021-03-11 19:49:20,488 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 170.0) internal successors, (680), 4 states have internal predecessors, (680), 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) [2021-03-11 19:49:20,488 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 170.0) internal successors, (680), 4 states have internal predecessors, (680), 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) [2021-03-11 19:49:20,488 INFO L185 Difference]: Start difference. First operand has 54 places, 69 transitions, 465 flow. Second operand 3 states and 346 transitions. [2021-03-11 19:49:20,488 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 56 places, 118 transitions, 1025 flow [2021-03-11 19:49:20,533 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 55 places, 118 transitions, 1017 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-03-11 19:49:20,535 INFO L241 Difference]: Finished difference. Result has 57 places, 106 transitions, 1019 flow [2021-03-11 19:49:20,535 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=170, PETRI_DIFFERENCE_MINUEND_FLOW=461, PETRI_DIFFERENCE_MINUEND_PLACES=53, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=69, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=24, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1019, PETRI_PLACES=57, PETRI_TRANSITIONS=106} [2021-03-11 19:49:20,535 INFO L335 CegarLoopForPetriNet]: 48 programPoint places, 9 predicate places. [2021-03-11 19:49:20,535 INFO L480 AbstractCegarLoop]: Abstraction has has 57 places, 106 transitions, 1019 flow [2021-03-11 19:49:20,535 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 104.33333333333333) internal successors, (313), 3 states have internal predecessors, (313), 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) [2021-03-11 19:49:20,535 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-11 19:49:20,535 INFO L255 CegarLoopForPetriNet]: trace histogram [4, 3, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 19:49:20,535 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable47 [2021-03-11 19:49:20,535 INFO L428 AbstractCegarLoop]: === Iteration 8 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-11 19:49:20,535 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 19:49:20,535 INFO L82 PathProgramCache]: Analyzing trace with hash -338110609, now seen corresponding path program 1 times [2021-03-11 19:49:20,536 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 19:49:20,536 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [683972198] [2021-03-11 19:49:20,536 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 19:49:20,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 19:49:20,549 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 19:49:20,549 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 19:49:20,549 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 19:49:20,550 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-11 19:49:20,552 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 19:49:20,552 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-11 19:49:20,554 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2021-03-11 19:49:20,554 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [683972198] [2021-03-11 19:49:20,555 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 19:49:20,555 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-11 19:49:20,555 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [311848640] [2021-03-11 19:49:20,555 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-03-11 19:49:20,556 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 19:49:20,556 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-03-11 19:49:20,556 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-03-11 19:49:20,556 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 103 out of 170 [2021-03-11 19:49:20,557 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 57 places, 106 transitions, 1019 flow. Second operand has 4 states, 4 states have (on average 104.25) internal successors, (417), 4 states have internal predecessors, (417), 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) [2021-03-11 19:49:20,557 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-11 19:49:20,557 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 103 of 170 [2021-03-11 19:49:20,557 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-11 19:49:32,342 INFO L129 PetriNetUnfolder]: 114458/147254 cut-off events. [2021-03-11 19:49:32,343 INFO L130 PetriNetUnfolder]: For 479155/5939172 co-relation queries the response was YES. [2021-03-11 19:49:33,296 INFO L84 FinitePrefix]: Finished finitePrefix Result has 603510 conditions, 147254 events. 114458/147254 cut-off events. For 479155/5939172 co-relation queries the response was YES. Maximal size of possible extension queue 5439. Compared 894160 event pairs, 21554 based on Foata normal form. 7193/128767 useless extension candidates. Maximal degree in co-relation 603484. Up to 118717 conditions per place. [2021-03-11 19:49:34,332 INFO L132 encePairwiseOnDemand]: 168/170 looper letters, 136 selfloop transitions, 8 changer transitions 0/153 dead transitions. [2021-03-11 19:49:34,332 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 58 places, 153 transitions, 1711 flow [2021-03-11 19:49:34,333 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-11 19:49:34,333 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-03-11 19:49:34,333 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 344 transitions. [2021-03-11 19:49:34,333 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.6745098039215687 [2021-03-11 19:49:34,333 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 344 transitions. [2021-03-11 19:49:34,333 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 344 transitions. [2021-03-11 19:49:34,334 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-11 19:49:34,334 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 344 transitions. [2021-03-11 19:49:34,334 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 114.66666666666667) internal successors, (344), 3 states have internal predecessors, (344), 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) [2021-03-11 19:49:34,334 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 170.0) internal successors, (680), 4 states have internal predecessors, (680), 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) [2021-03-11 19:49:34,335 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 170.0) internal successors, (680), 4 states have internal predecessors, (680), 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) [2021-03-11 19:49:34,335 INFO L185 Difference]: Start difference. First operand has 57 places, 106 transitions, 1019 flow. Second operand 3 states and 344 transitions. [2021-03-11 19:49:34,335 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 58 places, 153 transitions, 1711 flow [2021-03-11 19:49:35,986 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 56 places, 153 transitions, 1621 flow, removed 0 selfloop flow, removed 2 redundant places. [2021-03-11 19:49:35,987 INFO L241 Difference]: Finished difference. Result has 56 places, 105 transitions, 941 flow [2021-03-11 19:49:35,988 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=170, PETRI_DIFFERENCE_MINUEND_FLOW=925, PETRI_DIFFERENCE_MINUEND_PLACES=54, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=105, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=97, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=941, PETRI_PLACES=56, PETRI_TRANSITIONS=105} [2021-03-11 19:49:35,988 INFO L335 CegarLoopForPetriNet]: 48 programPoint places, 8 predicate places. [2021-03-11 19:49:35,988 INFO L480 AbstractCegarLoop]: Abstraction has has 56 places, 105 transitions, 941 flow [2021-03-11 19:49:35,988 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 104.25) internal successors, (417), 4 states have internal predecessors, (417), 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) [2021-03-11 19:49:35,988 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-11 19:49:35,988 INFO L255 CegarLoopForPetriNet]: trace histogram [5, 4, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 19:49:35,988 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable48 [2021-03-11 19:49:35,988 INFO L428 AbstractCegarLoop]: === Iteration 9 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-11 19:49:35,988 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 19:49:35,989 INFO L82 PathProgramCache]: Analyzing trace with hash 1332752679, now seen corresponding path program 1 times [2021-03-11 19:49:35,989 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 19:49:35,989 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2104557280] [2021-03-11 19:49:35,989 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 19:49:35,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 19:49:36,003 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 19:49:36,003 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 19:49:36,004 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 19:49:36,004 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-11 19:49:36,006 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2021-03-11 19:49:36,006 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2104557280] [2021-03-11 19:49:36,006 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 19:49:36,006 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-03-11 19:49:36,006 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [862409210] [2021-03-11 19:49:36,006 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-03-11 19:49:36,006 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 19:49:36,006 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-03-11 19:49:36,007 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-11 19:49:36,007 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 102 out of 170 [2021-03-11 19:49:36,007 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 56 places, 105 transitions, 941 flow. Second operand has 3 states, 3 states have (on average 103.33333333333333) internal successors, (310), 3 states have internal predecessors, (310), 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) [2021-03-11 19:49:36,007 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-11 19:49:36,007 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 102 of 170 [2021-03-11 19:49:36,007 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-11 19:49:53,651 INFO L129 PetriNetUnfolder]: 151068/196255 cut-off events. [2021-03-11 19:49:53,651 INFO L130 PetriNetUnfolder]: For 689990/4620977 co-relation queries the response was YES. [2021-03-11 19:49:54,799 INFO L84 FinitePrefix]: Finished finitePrefix Result has 773632 conditions, 196255 events. 151068/196255 cut-off events. For 689990/4620977 co-relation queries the response was YES. Maximal size of possible extension queue 7465. Compared 1228197 event pairs, 48076 based on Foata normal form. 72/164852 useless extension candidates. Maximal degree in co-relation 773606. Up to 148267 conditions per place. [2021-03-11 19:49:56,069 INFO L132 encePairwiseOnDemand]: 161/170 looper letters, 92 selfloop transitions, 81 changer transitions 0/182 dead transitions. [2021-03-11 19:49:56,069 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 58 places, 182 transitions, 2009 flow [2021-03-11 19:49:56,070 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-11 19:49:56,070 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-03-11 19:49:56,070 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 341 transitions. [2021-03-11 19:49:56,070 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.6686274509803921 [2021-03-11 19:49:56,070 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 341 transitions. [2021-03-11 19:49:56,070 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 341 transitions. [2021-03-11 19:49:56,070 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-11 19:49:56,070 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 341 transitions. [2021-03-11 19:49:56,071 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) [2021-03-11 19:49:56,071 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 170.0) internal successors, (680), 4 states have internal predecessors, (680), 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) [2021-03-11 19:49:56,071 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 170.0) internal successors, (680), 4 states have internal predecessors, (680), 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) [2021-03-11 19:49:56,071 INFO L185 Difference]: Start difference. First operand has 56 places, 105 transitions, 941 flow. Second operand 3 states and 341 transitions. [2021-03-11 19:49:56,071 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 58 places, 182 transitions, 2009 flow [2021-03-11 19:49:56,285 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 57 places, 182 transitions, 1993 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-03-11 19:49:56,287 INFO L241 Difference]: Finished difference. Result has 59 places, 170 transitions, 2063 flow [2021-03-11 19:49:56,288 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=170, PETRI_DIFFERENCE_MINUEND_FLOW=933, PETRI_DIFFERENCE_MINUEND_PLACES=55, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=105, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=16, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=24, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=2063, PETRI_PLACES=59, PETRI_TRANSITIONS=170} [2021-03-11 19:49:56,288 INFO L335 CegarLoopForPetriNet]: 48 programPoint places, 11 predicate places. [2021-03-11 19:49:56,288 INFO L480 AbstractCegarLoop]: Abstraction has has 59 places, 170 transitions, 2063 flow [2021-03-11 19:49:56,288 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 103.33333333333333) internal successors, (310), 3 states have internal predecessors, (310), 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) [2021-03-11 19:49:56,288 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-11 19:49:56,288 INFO L255 CegarLoopForPetriNet]: trace histogram [5, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 19:49:56,288 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable49 [2021-03-11 19:49:56,288 INFO L428 AbstractCegarLoop]: === Iteration 10 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-11 19:49:56,288 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 19:49:56,288 INFO L82 PathProgramCache]: Analyzing trace with hash -1634334824, now seen corresponding path program 1 times [2021-03-11 19:49:56,289 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 19:49:56,289 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [357143962] [2021-03-11 19:49:56,289 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 19:49:56,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 19:49:56,297 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 19:49:56,298 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 19:49:56,298 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 19:49:56,298 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-11 19:49:56,300 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 19:49:56,301 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-11 19:49:56,303 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2021-03-11 19:49:56,303 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [357143962] [2021-03-11 19:49:56,303 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 19:49:56,303 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-11 19:49:56,303 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [181134082] [2021-03-11 19:49:56,304 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-03-11 19:49:56,304 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 19:49:56,304 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-03-11 19:49:56,304 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-03-11 19:49:56,304 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 102 out of 170 [2021-03-11 19:49:56,305 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 59 places, 170 transitions, 2063 flow. Second operand has 4 states, 4 states have (on average 103.25) internal successors, (413), 4 states have internal predecessors, (413), 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) [2021-03-11 19:49:56,305 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-11 19:49:56,305 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 102 of 170 [2021-03-11 19:49:56,305 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-11 19:50:12,256 INFO L129 PetriNetUnfolder]: 120726/157802 cut-off events. [2021-03-11 19:50:12,257 INFO L130 PetriNetUnfolder]: For 770542/7302819 co-relation queries the response was YES. [2021-03-11 19:50:13,304 INFO L84 FinitePrefix]: Finished finitePrefix Result has 739225 conditions, 157802 events. 120726/157802 cut-off events. For 770542/7302819 co-relation queries the response was YES. Maximal size of possible extension queue 6043. Compared 994291 event pairs, 26145 based on Foata normal form. 8232/146849 useless extension candidates. Maximal degree in co-relation 739198. Up to 126059 conditions per place. [2021-03-11 19:50:14,309 INFO L132 encePairwiseOnDemand]: 168/170 looper letters, 220 selfloop transitions, 16 changer transitions 0/245 dead transitions. [2021-03-11 19:50:14,309 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 60 places, 245 transitions, 3371 flow [2021-03-11 19:50:14,310 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-11 19:50:14,310 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-03-11 19:50:14,310 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 339 transitions. [2021-03-11 19:50:14,310 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.6647058823529411 [2021-03-11 19:50:14,311 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 339 transitions. [2021-03-11 19:50:14,311 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 339 transitions. [2021-03-11 19:50:14,311 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-11 19:50:14,311 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 339 transitions. [2021-03-11 19:50:14,311 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 113.0) internal successors, (339), 3 states have internal predecessors, (339), 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) [2021-03-11 19:50:14,312 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 170.0) internal successors, (680), 4 states have internal predecessors, (680), 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) [2021-03-11 19:50:14,312 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 170.0) internal successors, (680), 4 states have internal predecessors, (680), 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) [2021-03-11 19:50:14,312 INFO L185 Difference]: Start difference. First operand has 59 places, 170 transitions, 2063 flow. Second operand 3 states and 339 transitions. [2021-03-11 19:50:14,312 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 60 places, 245 transitions, 3371 flow [2021-03-11 19:50:18,528 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 58 places, 245 transitions, 3209 flow, removed 0 selfloop flow, removed 2 redundant places. [2021-03-11 19:50:18,531 INFO L241 Difference]: Finished difference. Result has 58 places, 169 transitions, 1929 flow [2021-03-11 19:50:18,531 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=170, PETRI_DIFFERENCE_MINUEND_FLOW=1897, PETRI_DIFFERENCE_MINUEND_PLACES=56, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=169, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=16, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=153, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1929, PETRI_PLACES=58, PETRI_TRANSITIONS=169} [2021-03-11 19:50:18,531 INFO L335 CegarLoopForPetriNet]: 48 programPoint places, 10 predicate places. [2021-03-11 19:50:18,531 INFO L480 AbstractCegarLoop]: Abstraction has has 58 places, 169 transitions, 1929 flow [2021-03-11 19:50:18,531 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 103.25) internal successors, (413), 4 states have internal predecessors, (413), 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) [2021-03-11 19:50:18,531 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-11 19:50:18,531 INFO L255 CegarLoopForPetriNet]: trace histogram [6, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 19:50:18,531 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable50 [2021-03-11 19:50:18,532 INFO L428 AbstractCegarLoop]: === Iteration 11 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-11 19:50:18,532 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 19:50:18,532 INFO L82 PathProgramCache]: Analyzing trace with hash 1205333495, now seen corresponding path program 1 times [2021-03-11 19:50:18,532 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 19:50:18,532 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [398848638] [2021-03-11 19:50:18,532 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 19:50:18,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 19:50:18,541 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 19:50:18,541 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 19:50:18,541 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 19:50:18,542 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-11 19:50:18,543 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2021-03-11 19:50:18,544 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [398848638] [2021-03-11 19:50:18,544 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 19:50:18,544 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-03-11 19:50:18,544 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [402642799] [2021-03-11 19:50:18,544 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-03-11 19:50:18,544 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 19:50:18,544 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-03-11 19:50:18,544 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-11 19:50:18,545 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 102 out of 170 [2021-03-11 19:50:18,545 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 58 places, 169 transitions, 1929 flow. Second operand has 3 states, 3 states have (on average 103.33333333333333) internal successors, (310), 3 states have internal predecessors, (310), 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) [2021-03-11 19:50:18,545 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-11 19:50:18,545 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 102 of 170 [2021-03-11 19:50:18,545 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-11 19:50:39,734 INFO L129 PetriNetUnfolder]: 159073/210362 cut-off events. [2021-03-11 19:50:39,735 INFO L130 PetriNetUnfolder]: For 1043919/1148070 co-relation queries the response was YES. [2021-03-11 19:50:41,049 INFO L84 FinitePrefix]: Finished finitePrefix Result has 954581 conditions, 210362 events. 159073/210362 cut-off events. For 1043919/1148070 co-relation queries the response was YES. Maximal size of possible extension queue 8203. Compared 1394541 event pairs, 44697 based on Foata normal form. 160/188690 useless extension candidates. Maximal degree in co-relation 954554. Up to 161162 conditions per place. [2021-03-11 19:50:42,410 INFO L132 encePairwiseOnDemand]: 161/170 looper letters, 140 selfloop transitions, 145 changer transitions 0/294 dead transitions. [2021-03-11 19:50:42,411 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 60 places, 294 transitions, 3985 flow [2021-03-11 19:50:42,415 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-11 19:50:42,415 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-03-11 19:50:42,415 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 339 transitions. [2021-03-11 19:50:42,415 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.6647058823529411 [2021-03-11 19:50:42,415 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 339 transitions. [2021-03-11 19:50:42,415 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 339 transitions. [2021-03-11 19:50:42,416 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-11 19:50:42,416 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 339 transitions. [2021-03-11 19:50:42,416 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 113.0) internal successors, (339), 3 states have internal predecessors, (339), 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) [2021-03-11 19:50:42,416 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 170.0) internal successors, (680), 4 states have internal predecessors, (680), 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) [2021-03-11 19:50:42,417 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 170.0) internal successors, (680), 4 states have internal predecessors, (680), 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) [2021-03-11 19:50:42,417 INFO L185 Difference]: Start difference. First operand has 58 places, 169 transitions, 1929 flow. Second operand 3 states and 339 transitions. [2021-03-11 19:50:42,417 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 60 places, 294 transitions, 3985 flow [2021-03-11 19:50:42,576 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 59 places, 294 transitions, 3953 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-03-11 19:50:42,579 INFO L241 Difference]: Finished difference. Result has 61 places, 282 transitions, 4147 flow [2021-03-11 19:50:42,579 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=170, PETRI_DIFFERENCE_MINUEND_FLOW=1913, PETRI_DIFFERENCE_MINUEND_PLACES=57, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=169, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=32, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=24, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=4147, PETRI_PLACES=61, PETRI_TRANSITIONS=282} [2021-03-11 19:50:42,580 INFO L335 CegarLoopForPetriNet]: 48 programPoint places, 13 predicate places. [2021-03-11 19:50:42,580 INFO L480 AbstractCegarLoop]: Abstraction has has 61 places, 282 transitions, 4147 flow [2021-03-11 19:50:42,580 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 103.33333333333333) internal successors, (310), 3 states have internal predecessors, (310), 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) [2021-03-11 19:50:42,580 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-11 19:50:42,580 INFO L255 CegarLoopForPetriNet]: trace histogram [6, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 19:50:42,580 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable51 [2021-03-11 19:50:42,580 INFO L428 AbstractCegarLoop]: === Iteration 12 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-11 19:50:42,580 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 19:50:42,580 INFO L82 PathProgramCache]: Analyzing trace with hash -1289362656, now seen corresponding path program 1 times [2021-03-11 19:50:42,580 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 19:50:42,580 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1738083408] [2021-03-11 19:50:42,581 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 19:50:42,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 19:50:42,588 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 19:50:42,588 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 19:50:42,588 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 19:50:42,588 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-11 19:50:42,590 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 19:50:42,591 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-11 19:50:42,593 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2021-03-11 19:50:42,593 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1738083408] [2021-03-11 19:50:42,593 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 19:50:42,593 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-11 19:50:42,593 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2132963481] [2021-03-11 19:50:42,593 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-03-11 19:50:42,593 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 19:50:42,594 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-03-11 19:50:42,594 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-03-11 19:50:42,594 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 102 out of 170 [2021-03-11 19:50:42,594 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 61 places, 282 transitions, 4147 flow. Second operand has 4 states, 4 states have (on average 103.25) internal successors, (413), 4 states have internal predecessors, (413), 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) [2021-03-11 19:50:42,594 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-11 19:50:42,594 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 102 of 170 [2021-03-11 19:50:42,594 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-11 19:51:02,344 INFO L129 PetriNetUnfolder]: 127614/169930 cut-off events. [2021-03-11 19:51:02,344 INFO L130 PetriNetUnfolder]: For 1121629/1319730 co-relation queries the response was YES. [2021-03-11 19:51:03,642 INFO L84 FinitePrefix]: Finished finitePrefix Result has 904668 conditions, 169930 events. 127614/169930 cut-off events. For 1121629/1319730 co-relation queries the response was YES. Maximal size of possible extension queue 6681. Compared 1130062 event pairs, 33295 based on Foata normal form. 9192/168572 useless extension candidates. Maximal degree in co-relation 904640. Up to 130785 conditions per place. [2021-03-11 19:51:04,760 INFO L132 encePairwiseOnDemand]: 168/170 looper letters, 363 selfloop transitions, 32 changer transitions 0/404 dead transitions. [2021-03-11 19:51:04,760 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 62 places, 404 transitions, 6611 flow [2021-03-11 19:51:04,761 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-11 19:51:04,761 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-03-11 19:51:04,761 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 337 transitions. [2021-03-11 19:51:04,761 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.6607843137254902 [2021-03-11 19:51:04,761 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 337 transitions. [2021-03-11 19:51:04,761 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 337 transitions. [2021-03-11 19:51:04,761 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-11 19:51:04,761 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 337 transitions. [2021-03-11 19:51:04,762 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 112.33333333333333) internal successors, (337), 3 states have internal predecessors, (337), 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) [2021-03-11 19:51:04,762 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 170.0) internal successors, (680), 4 states have internal predecessors, (680), 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) [2021-03-11 19:51:04,762 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 170.0) internal successors, (680), 4 states have internal predecessors, (680), 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) [2021-03-11 19:51:04,762 INFO L185 Difference]: Start difference. First operand has 61 places, 282 transitions, 4147 flow. Second operand 3 states and 337 transitions. [2021-03-11 19:51:04,762 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 62 places, 404 transitions, 6611 flow [2021-03-11 19:51:11,647 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 60 places, 404 transitions, 6321 flow, removed 0 selfloop flow, removed 2 redundant places. [2021-03-11 19:51:11,652 INFO L241 Difference]: Finished difference. Result has 60 places, 281 transitions, 3917 flow [2021-03-11 19:51:11,653 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=170, PETRI_DIFFERENCE_MINUEND_FLOW=3853, PETRI_DIFFERENCE_MINUEND_PLACES=58, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=281, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=32, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=249, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=3917, PETRI_PLACES=60, PETRI_TRANSITIONS=281} [2021-03-11 19:51:11,653 INFO L335 CegarLoopForPetriNet]: 48 programPoint places, 12 predicate places. [2021-03-11 19:51:11,653 INFO L480 AbstractCegarLoop]: Abstraction has has 60 places, 281 transitions, 3917 flow [2021-03-11 19:51:11,653 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 103.25) internal successors, (413), 4 states have internal predecessors, (413), 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) [2021-03-11 19:51:11,653 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-11 19:51:11,653 INFO L255 CegarLoopForPetriNet]: trace histogram [7, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 19:51:11,653 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable52 [2021-03-11 19:51:11,653 INFO L428 AbstractCegarLoop]: === Iteration 13 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-11 19:51:11,654 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 19:51:11,654 INFO L82 PathProgramCache]: Analyzing trace with hash 2009368488, now seen corresponding path program 1 times [2021-03-11 19:51:11,654 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 19:51:11,654 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1739521640] [2021-03-11 19:51:11,654 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 19:51:11,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 19:51:11,661 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 19:51:11,661 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 19:51:11,662 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 19:51:11,662 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-11 19:51:11,664 INFO L134 CoverageAnalysis]: Checked inductivity of 57 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 57 trivial. 0 not checked. [2021-03-11 19:51:11,664 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1739521640] [2021-03-11 19:51:11,664 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 19:51:11,664 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-03-11 19:51:11,664 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [112651172] [2021-03-11 19:51:11,664 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-03-11 19:51:11,664 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 19:51:11,664 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-03-11 19:51:11,664 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-11 19:51:11,665 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 103 out of 170 [2021-03-11 19:51:11,665 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 60 places, 281 transitions, 3917 flow. Second operand has 3 states, 3 states have (on average 104.33333333333333) internal successors, (313), 3 states have internal predecessors, (313), 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) [2021-03-11 19:51:11,665 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-11 19:51:11,665 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 103 of 170 [2021-03-11 19:51:11,665 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-11 19:51:46,361 INFO L129 PetriNetUnfolder]: 180722/242637 cut-off events. [2021-03-11 19:51:46,362 INFO L130 PetriNetUnfolder]: For 1564902/2822456 co-relation queries the response was YES. [2021-03-11 19:51:47,761 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1262226 conditions, 242637 events. 180722/242637 cut-off events. For 1564902/2822456 co-relation queries the response was YES. Maximal size of possible extension queue 12090. Compared 1745061 event pairs, 50816 based on Foata normal form. 334/232509 useless extension candidates. Maximal degree in co-relation 1262198. Up to 193385 conditions per place. [2021-03-11 19:51:49,172 INFO L132 encePairwiseOnDemand]: 161/170 looper letters, 220 selfloop transitions, 257 changer transitions 0/486 dead transitions. [2021-03-11 19:51:49,172 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 62 places, 486 transitions, 7833 flow [2021-03-11 19:51:49,172 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-11 19:51:49,172 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-03-11 19:51:49,173 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 340 transitions. [2021-03-11 19:51:49,173 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.6666666666666666 [2021-03-11 19:51:49,173 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 340 transitions. [2021-03-11 19:51:49,173 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 340 transitions. [2021-03-11 19:51:49,173 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-11 19:51:49,173 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 340 transitions. [2021-03-11 19:51:49,173 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 113.33333333333333) internal successors, (340), 3 states have internal predecessors, (340), 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) [2021-03-11 19:51:49,174 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 170.0) internal successors, (680), 4 states have internal predecessors, (680), 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) [2021-03-11 19:51:49,174 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 170.0) internal successors, (680), 4 states have internal predecessors, (680), 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) [2021-03-11 19:51:49,174 INFO L185 Difference]: Start difference. First operand has 60 places, 281 transitions, 3917 flow. Second operand 3 states and 340 transitions. [2021-03-11 19:51:49,174 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 62 places, 486 transitions, 7833 flow [2021-03-11 19:51:49,384 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 61 places, 486 transitions, 7769 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-03-11 19:51:49,394 INFO L241 Difference]: Finished difference. Result has 63 places, 474 transitions, 8183 flow [2021-03-11 19:51:49,394 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=170, PETRI_DIFFERENCE_MINUEND_FLOW=3885, PETRI_DIFFERENCE_MINUEND_PLACES=59, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=281, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=64, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=24, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=8183, PETRI_PLACES=63, PETRI_TRANSITIONS=474} [2021-03-11 19:51:49,395 INFO L335 CegarLoopForPetriNet]: 48 programPoint places, 15 predicate places. [2021-03-11 19:51:49,395 INFO L480 AbstractCegarLoop]: Abstraction has has 63 places, 474 transitions, 8183 flow [2021-03-11 19:51:49,395 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 104.33333333333333) internal successors, (313), 3 states have internal predecessors, (313), 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) [2021-03-11 19:51:49,395 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-11 19:51:49,395 INFO L255 CegarLoopForPetriNet]: trace histogram [8, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 19:51:49,395 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable53 [2021-03-11 19:51:49,395 INFO L428 AbstractCegarLoop]: === Iteration 14 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-11 19:51:49,395 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 19:51:49,395 INFO L82 PathProgramCache]: Analyzing trace with hash -2134242578, now seen corresponding path program 1 times [2021-03-11 19:51:49,395 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 19:51:49,395 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1554097365] [2021-03-11 19:51:49,396 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 19:51:49,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-03-11 19:51:49,400 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-03-11 19:51:49,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-03-11 19:51:49,404 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-03-11 19:51:49,407 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-03-11 19:51:49,408 INFO L620 BasicCegarLoop]: Counterexample might be feasible [2021-03-11 19:51:49,408 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable54 [2021-03-11 19:51:49,408 WARN L342 ceAbstractionStarter]: 7 thread instances were not sufficient, I will increase this number and restart the analysis [2021-03-11 19:51:49,408 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 8 thread instances. [2021-03-11 19:51:49,425 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of8ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:51:49,425 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of8ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:51:49,425 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of8ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:51:49,425 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of8ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:51:49,425 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of8ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:51:49,425 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of8ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:51:49,425 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of8ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:51:49,425 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of8ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:51:49,425 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of8ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:51:49,425 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of8ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:51:49,425 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of8ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:51:49,425 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of8ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:51:49,425 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of8ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:51:49,425 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of8ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:51:49,425 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of8ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:51:49,426 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of8ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:51:49,426 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of8ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:51:49,426 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of8ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:51:49,426 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of8ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:51:49,426 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of8ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:51:49,426 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of8ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:51:49,426 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of8ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:51:49,426 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of8ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:51:49,426 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of8ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:51:49,426 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of8ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:51:49,426 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of8ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:51:49,426 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of8ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:51:49,426 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of8ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:51:49,426 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread7of8ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:51:49,426 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread7of8ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:51:49,426 WARN L313 ript$VariableManager]: TermVariabe thr1Thread7of8ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:51:49,426 WARN L313 ript$VariableManager]: TermVariabe thr1Thread7of8ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:51:49,426 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread7of8ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:51:49,426 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread7of8ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:51:49,426 WARN L313 ript$VariableManager]: TermVariabe thr1Thread7of8ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:51:49,426 WARN L313 ript$VariableManager]: TermVariabe thr1Thread7of8ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:51:49,426 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread7of8ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:51:49,427 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread7of8ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:51:49,427 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread7of8ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:51:49,427 WARN L313 ript$VariableManager]: TermVariabe thr1Thread7of8ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:51:49,427 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread7of8ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:51:49,427 WARN L313 ript$VariableManager]: TermVariabe thr1Thread7of8ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:51:49,427 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread7of8ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:51:49,427 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread7of8ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:51:49,427 WARN L313 ript$VariableManager]: TermVariabe thr1Thread7of8ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:51:49,427 WARN L313 ript$VariableManager]: TermVariabe thr1Thread7of8ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:51:49,427 WARN L313 ript$VariableManager]: TermVariabe thr1Thread7of8ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:51:49,427 WARN L313 ript$VariableManager]: TermVariabe thr1Thread7of8ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:51:49,427 WARN L313 ript$VariableManager]: TermVariabe thr1Thread7of8ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:51:49,427 WARN L313 ript$VariableManager]: TermVariabe thr1Thread7of8ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:51:49,427 WARN L313 ript$VariableManager]: TermVariabe thr1Thread7of8ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:51:49,427 WARN L313 ript$VariableManager]: TermVariabe thr1Thread7of8ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:51:49,427 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread7of8ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:51:49,427 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread7of8ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:51:49,427 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread7of8ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:51:49,427 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread7of8ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:51:49,427 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of8ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:51:49,428 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of8ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:51:49,428 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of8ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:51:49,428 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of8ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:51:49,428 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of8ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:51:49,428 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of8ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:51:49,428 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of8ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:51:49,428 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of8ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:51:49,428 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of8ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:51:49,428 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of8ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:51:49,428 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of8ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:51:49,428 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of8ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:51:49,428 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of8ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:51:49,428 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of8ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:51:49,428 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of8ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:51:49,428 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of8ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:51:49,428 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of8ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:51:49,428 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of8ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:51:49,428 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of8ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:51:49,428 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of8ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:51:49,428 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of8ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:51:49,428 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of8ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:51:49,428 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of8ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:51:49,429 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of8ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:51:49,429 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of8ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:51:49,429 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of8ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:51:49,429 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of8ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:51:49,429 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of8ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:51:49,429 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of8ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:51:49,429 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of8ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:51:49,429 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of8ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:51:49,429 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of8ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:51:49,429 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of8ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:51:49,429 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of8ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:51:49,429 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of8ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:51:49,429 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of8ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:51:49,429 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of8ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:51:49,429 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of8ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:51:49,429 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of8ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:51:49,429 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of8ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:51:49,429 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of8ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:51:49,429 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of8ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:51:49,429 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of8ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:51:49,429 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of8ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:51:49,429 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of8ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:51:49,430 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of8ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:51:49,430 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of8ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:51:49,430 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of8ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:51:49,430 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of8ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:51:49,430 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of8ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:51:49,430 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of8ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:51:49,430 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of8ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:51:49,430 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of8ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:51:49,430 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of8ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:51:49,430 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of8ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:51:49,430 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of8ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:51:49,430 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread8of8ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:51:49,430 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread8of8ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:51:49,430 WARN L313 ript$VariableManager]: TermVariabe thr1Thread8of8ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:51:49,430 WARN L313 ript$VariableManager]: TermVariabe thr1Thread8of8ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:51:49,430 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread8of8ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:51:49,430 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread8of8ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:51:49,430 WARN L313 ript$VariableManager]: TermVariabe thr1Thread8of8ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:51:49,430 WARN L313 ript$VariableManager]: TermVariabe thr1Thread8of8ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:51:49,430 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread8of8ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:51:49,430 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread8of8ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:51:49,430 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread8of8ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:51:49,431 WARN L313 ript$VariableManager]: TermVariabe thr1Thread8of8ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:51:49,431 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread8of8ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:51:49,431 WARN L313 ript$VariableManager]: TermVariabe thr1Thread8of8ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:51:49,431 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread8of8ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:51:49,431 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread8of8ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:51:49,431 WARN L313 ript$VariableManager]: TermVariabe thr1Thread8of8ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:51:49,431 WARN L313 ript$VariableManager]: TermVariabe thr1Thread8of8ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:51:49,431 WARN L313 ript$VariableManager]: TermVariabe thr1Thread8of8ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:51:49,431 WARN L313 ript$VariableManager]: TermVariabe thr1Thread8of8ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:51:49,431 WARN L313 ript$VariableManager]: TermVariabe thr1Thread8of8ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:51:49,431 WARN L313 ript$VariableManager]: TermVariabe thr1Thread8of8ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:51:49,431 WARN L313 ript$VariableManager]: TermVariabe thr1Thread8of8ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:51:49,431 WARN L313 ript$VariableManager]: TermVariabe thr1Thread8of8ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:51:49,431 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread8of8ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:51:49,431 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread8of8ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:51:49,431 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread8of8ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:51:49,431 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread8of8ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:51:49,431 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of8ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:51:49,431 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of8ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:51:49,431 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of8ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:51:49,431 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of8ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:51:49,431 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of8ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:51:49,432 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of8ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:51:49,432 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of8ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:51:49,432 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of8ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:51:49,432 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of8ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:51:49,432 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of8ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:51:49,432 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of8ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:51:49,432 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of8ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:51:49,432 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of8ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:51:49,432 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of8ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:51:49,432 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of8ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:51:49,432 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of8ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:51:49,432 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of8ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:51:49,432 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of8ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:51:49,432 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of8ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:51:49,432 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of8ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:51:49,432 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of8ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:51:49,432 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of8ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:51:49,432 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of8ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:51:49,432 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of8ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:51:49,432 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of8ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:51:49,432 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of8ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:51:49,432 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of8ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:51:49,432 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of8ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:51:49,433 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread6of8ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:51:49,433 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread6of8ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:51:49,433 WARN L313 ript$VariableManager]: TermVariabe thr1Thread6of8ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:51:49,433 WARN L313 ript$VariableManager]: TermVariabe thr1Thread6of8ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:51:49,433 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread6of8ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:51:49,433 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread6of8ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:51:49,433 WARN L313 ript$VariableManager]: TermVariabe thr1Thread6of8ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:51:49,433 WARN L313 ript$VariableManager]: TermVariabe thr1Thread6of8ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:51:49,433 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread6of8ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:51:49,433 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread6of8ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:51:49,433 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread6of8ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:51:49,433 WARN L313 ript$VariableManager]: TermVariabe thr1Thread6of8ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:51:49,433 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread6of8ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:51:49,433 WARN L313 ript$VariableManager]: TermVariabe thr1Thread6of8ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:51:49,433 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread6of8ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:51:49,433 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread6of8ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:51:49,433 WARN L313 ript$VariableManager]: TermVariabe thr1Thread6of8ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:51:49,433 WARN L313 ript$VariableManager]: TermVariabe thr1Thread6of8ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:51:49,433 WARN L313 ript$VariableManager]: TermVariabe thr1Thread6of8ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:51:49,433 WARN L313 ript$VariableManager]: TermVariabe thr1Thread6of8ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:51:49,433 WARN L313 ript$VariableManager]: TermVariabe thr1Thread6of8ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:51:49,434 WARN L313 ript$VariableManager]: TermVariabe thr1Thread6of8ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:51:49,434 WARN L313 ript$VariableManager]: TermVariabe thr1Thread6of8ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:51:49,434 WARN L313 ript$VariableManager]: TermVariabe thr1Thread6of8ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:51:49,434 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread6of8ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:51:49,434 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread6of8ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:51:49,434 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread6of8ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:51:49,434 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread6of8ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:51:49,434 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of8ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:51:49,434 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of8ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:51:49,434 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of8ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:51:49,434 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of8ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:51:49,434 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of8ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:51:49,434 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of8ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:51:49,434 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of8ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:51:49,434 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of8ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:51:49,434 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of8ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:51:49,434 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of8ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:51:49,434 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of8ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:51:49,434 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of8ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:51:49,434 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of8ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:51:49,434 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of8ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:51:49,434 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of8ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:51:49,434 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of8ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:51:49,435 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of8ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:51:49,435 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of8ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:51:49,435 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of8ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:51:49,435 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of8ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:51:49,435 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of8ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:51:49,435 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of8ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:51:49,435 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of8ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:51:49,435 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of8ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:51:49,435 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of8ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:51:49,435 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of8ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:51:49,435 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of8ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:51:49,435 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of8ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:51:49,435 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of8ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:51:49,435 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of8ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:51:49,435 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of8ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:51:49,435 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of8ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:51:49,436 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of8ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:51:49,436 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of8ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:51:49,436 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of8ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:51:49,436 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of8ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:51:49,436 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of8ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:51:49,437 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of8ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:51:49,437 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of8ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:51:49,437 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of8ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:51:49,437 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of8ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:51:49,437 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of8ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:51:49,437 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of8ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:51:49,437 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of8ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:51:49,437 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of8ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:51:49,438 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of8ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:51:49,438 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of8ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:51:49,438 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of8ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:51:49,438 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of8ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:51:49,438 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of8ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:51:49,438 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of8ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:51:49,438 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of8ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:51:49,439 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of8ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:51:49,439 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of8ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:51:49,439 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of8ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:51:49,439 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of8ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:51:49,439 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of8ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:51:49,439 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of8ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:51:49,443 WARN L313 ript$VariableManager]: TermVariabe thr1Thread6of8ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:51:49,443 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread6of8ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:51:49,444 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread6of8ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:51:49,444 WARN L313 ript$VariableManager]: TermVariabe thr1Thread6of8ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:51:49,444 WARN L313 ript$VariableManager]: TermVariabe thr1Thread6of8ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:51:49,444 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread6of8ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:51:49,444 WARN L313 ript$VariableManager]: TermVariabe thr1Thread7of8ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:51:49,444 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread7of8ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:51:49,444 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread7of8ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:51:49,445 WARN L313 ript$VariableManager]: TermVariabe thr1Thread7of8ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:51:49,445 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread7of8ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:51:49,445 WARN L313 ript$VariableManager]: TermVariabe thr1Thread7of8ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:51:49,445 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread8of8ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:51:49,445 WARN L313 ript$VariableManager]: TermVariabe thr1Thread8of8ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:51:49,445 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread8of8ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:51:49,445 WARN L313 ript$VariableManager]: TermVariabe thr1Thread8of8ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:51:49,446 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread8of8ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:51:49,446 WARN L313 ript$VariableManager]: TermVariabe thr1Thread8of8ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:51:49,446 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-03-11 19:51:49,446 INFO L253 AbstractCegarLoop]: Starting to check reachability of 10 error locations. [2021-03-11 19:51:49,447 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-03-11 19:51:49,447 INFO L377 AbstractCegarLoop]: Hoare is false [2021-03-11 19:51:49,447 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-03-11 19:51:49,447 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-03-11 19:51:49,447 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-03-11 19:51:49,447 INFO L381 AbstractCegarLoop]: Difference is false [2021-03-11 19:51:49,447 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-03-11 19:51:49,447 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-03-11 19:51:49,448 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 128 places, 112 transitions, 320 flow [2021-03-11 19:51:49,456 INFO L129 PetriNetUnfolder]: 9/183 cut-off events. [2021-03-11 19:51:49,457 INFO L130 PetriNetUnfolder]: For 112/112 co-relation queries the response was YES. [2021-03-11 19:51:49,457 INFO L84 FinitePrefix]: Finished finitePrefix Result has 244 conditions, 183 events. 9/183 cut-off events. For 112/112 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 496 event pairs, 0 based on Foata normal form. 0/157 useless extension candidates. Maximal degree in co-relation 200. Up to 18 conditions per place. [2021-03-11 19:51:49,457 INFO L82 GeneralOperation]: Start removeDead. Operand has 128 places, 112 transitions, 320 flow [2021-03-11 19:51:49,458 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 128 places, 112 transitions, 320 flow [2021-03-11 19:51:49,458 INFO L118 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-03-11 19:51:49,458 INFO L133 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 128 places, 112 transitions, 320 flow [2021-03-11 19:51:49,458 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 128 places, 112 transitions, 320 flow [2021-03-11 19:51:49,458 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 128 places, 112 transitions, 320 flow [2021-03-11 19:51:49,471 INFO L129 PetriNetUnfolder]: 9/183 cut-off events. [2021-03-11 19:51:49,472 INFO L130 PetriNetUnfolder]: For 112/112 co-relation queries the response was YES. [2021-03-11 19:51:49,473 INFO L84 FinitePrefix]: Finished finitePrefix Result has 244 conditions, 183 events. 9/183 cut-off events. For 112/112 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 528 event pairs, 0 based on Foata normal form. 0/157 useless extension candidates. Maximal degree in co-relation 200. Up to 18 conditions per place. [2021-03-11 19:51:49,477 INFO L116 LiptonReduction]: Number of co-enabled transitions 7760 [2021-03-11 19:51:51,202 INFO L131 LiptonReduction]: Checked pairs total: 11704 [2021-03-11 19:51:51,202 INFO L133 LiptonReduction]: Total number of compositions: 76 [2021-03-11 19:51:51,202 INFO L182 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 1744 [2021-03-11 19:51:51,203 INFO L129 PetriNetUnfolder]: 0/9 cut-off events. [2021-03-11 19:51:51,203 INFO L130 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2021-03-11 19:51:51,203 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-11 19:51:51,203 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2021-03-11 19:51:51,204 INFO L428 AbstractCegarLoop]: === Iteration 1 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-11 19:51:51,204 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 19:51:51,204 INFO L82 PathProgramCache]: Analyzing trace with hash 1122690934, now seen corresponding path program 1 times [2021-03-11 19:51:51,204 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 19:51:51,204 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [899601480] [2021-03-11 19:51:51,204 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 19:51:51,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 19:51:51,212 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 19:51:51,213 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 19:51:51,213 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 19:51:51,213 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-11 19:51:51,215 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 19:51:51,215 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [899601480] [2021-03-11 19:51:51,215 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 19:51:51,216 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-03-11 19:51:51,216 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [806502560] [2021-03-11 19:51:51,216 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-03-11 19:51:51,216 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 19:51:51,216 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-03-11 19:51:51,216 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-11 19:51:51,217 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 112 out of 188 [2021-03-11 19:51:51,217 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 54 places, 37 transitions, 170 flow. Second operand has 3 states, 3 states have (on average 113.33333333333333) internal successors, (340), 3 states have internal predecessors, (340), 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) [2021-03-11 19:51:51,217 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-11 19:51:51,217 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 112 of 188 [2021-03-11 19:51:51,217 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-11 19:53:10,889 INFO L129 PetriNetUnfolder]: 483309/581636 cut-off events. [2021-03-11 19:53:10,889 INFO L130 PetriNetUnfolder]: For 113/113 co-relation queries the response was YES. [2021-03-11 19:53:14,464 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1163309 conditions, 581636 events. 483309/581636 cut-off events. For 113/113 co-relation queries the response was YES. Maximal size of possible extension queue 19898. Compared 3237376 event pairs, 289454 based on Foata normal form. 98316/488719 useless extension candidates. Maximal degree in co-relation 1163220. Up to 417773 conditions per place. [2021-03-11 19:53:17,317 INFO L132 encePairwiseOnDemand]: 177/188 looper letters, 39 selfloop transitions, 9 changer transitions 0/58 dead transitions. [2021-03-11 19:53:17,318 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 55 places, 58 transitions, 308 flow [2021-03-11 19:53:17,318 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-11 19:53:17,318 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-03-11 19:53:17,318 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 387 transitions. [2021-03-11 19:53:17,318 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.6861702127659575 [2021-03-11 19:53:17,318 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 387 transitions. [2021-03-11 19:53:17,319 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 387 transitions. [2021-03-11 19:53:17,319 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-11 19:53:17,319 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 387 transitions. [2021-03-11 19:53:17,319 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 129.0) internal successors, (387), 3 states have internal predecessors, (387), 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) [2021-03-11 19:53:17,320 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 188.0) internal successors, (752), 4 states have internal predecessors, (752), 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) [2021-03-11 19:53:17,320 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 188.0) internal successors, (752), 4 states have internal predecessors, (752), 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) [2021-03-11 19:53:17,320 INFO L185 Difference]: Start difference. First operand has 54 places, 37 transitions, 170 flow. Second operand 3 states and 387 transitions. [2021-03-11 19:53:17,320 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 55 places, 58 transitions, 308 flow [2021-03-11 19:53:17,320 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 55 places, 58 transitions, 252 flow, removed 28 selfloop flow, removed 0 redundant places. [2021-03-11 19:53:17,321 INFO L241 Difference]: Finished difference. Result has 57 places, 44 transitions, 182 flow [2021-03-11 19:53:17,321 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=188, PETRI_DIFFERENCE_MINUEND_FLOW=112, PETRI_DIFFERENCE_MINUEND_PLACES=53, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=36, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=27, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=182, PETRI_PLACES=57, PETRI_TRANSITIONS=44} [2021-03-11 19:53:17,321 INFO L335 CegarLoopForPetriNet]: 54 programPoint places, 3 predicate places. [2021-03-11 19:53:17,321 INFO L480 AbstractCegarLoop]: Abstraction has has 57 places, 44 transitions, 182 flow [2021-03-11 19:53:17,321 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 113.33333333333333) internal successors, (340), 3 states have internal predecessors, (340), 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) [2021-03-11 19:53:17,321 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-11 19:53:17,321 INFO L255 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1] [2021-03-11 19:53:17,321 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable55 [2021-03-11 19:53:17,321 INFO L428 AbstractCegarLoop]: === Iteration 2 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-11 19:53:17,322 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 19:53:17,322 INFO L82 PathProgramCache]: Analyzing trace with hash 1009124838, now seen corresponding path program 1 times [2021-03-11 19:53:17,322 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 19:53:17,322 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1139668102] [2021-03-11 19:53:17,322 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 19:53:17,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 19:53:17,335 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 19:53:17,335 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 19:53:17,336 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 19:53:17,336 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-11 19:53:17,338 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-03-11 19:53:17,338 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1139668102] [2021-03-11 19:53:17,338 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 19:53:17,338 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-03-11 19:53:17,338 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [818286369] [2021-03-11 19:53:17,338 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-03-11 19:53:17,338 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 19:53:17,338 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-03-11 19:53:17,338 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-11 19:53:17,339 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 111 out of 188 [2021-03-11 19:53:17,339 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 57 places, 44 transitions, 182 flow. Second operand has 3 states, 3 states have (on average 112.33333333333333) internal successors, (337), 3 states have internal predecessors, (337), 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) [2021-03-11 19:53:17,339 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-11 19:53:17,339 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 111 of 188 [2021-03-11 19:53:17,339 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-11 19:55:41,945 INFO L129 PetriNetUnfolder]: 690082/833455 cut-off events. [2021-03-11 19:55:41,945 INFO L130 PetriNetUnfolder]: For 494573/2720520 co-relation queries the response was YES. [2021-03-11 19:55:46,223 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2125571 conditions, 833455 events. 690082/833455 cut-off events. For 494573/2720520 co-relation queries the response was YES. Maximal size of possible extension queue 26379. Compared 4785461 event pairs, 349559 based on Foata normal form. 1/589958 useless extension candidates. Maximal degree in co-relation 2125529. Up to 608158 conditions per place. [2021-03-11 19:55:50,535 INFO L132 encePairwiseOnDemand]: 178/188 looper letters, 47 selfloop transitions, 16 changer transitions 0/73 dead transitions. [2021-03-11 19:55:50,536 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 59 places, 73 transitions, 414 flow [2021-03-11 19:55:50,536 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-11 19:55:50,536 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-03-11 19:55:50,536 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 382 transitions. [2021-03-11 19:55:50,536 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.6773049645390071 [2021-03-11 19:55:50,536 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 382 transitions. [2021-03-11 19:55:50,536 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 382 transitions. [2021-03-11 19:55:50,537 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-11 19:55:50,537 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 382 transitions. [2021-03-11 19:55:50,537 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 127.33333333333333) internal successors, (382), 3 states have internal predecessors, (382), 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) [2021-03-11 19:55:50,537 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 188.0) internal successors, (752), 4 states have internal predecessors, (752), 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) [2021-03-11 19:55:50,538 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 188.0) internal successors, (752), 4 states have internal predecessors, (752), 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) [2021-03-11 19:55:50,538 INFO L185 Difference]: Start difference. First operand has 57 places, 44 transitions, 182 flow. Second operand 3 states and 382 transitions. [2021-03-11 19:55:50,538 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 59 places, 73 transitions, 414 flow [2021-03-11 19:57:27,773 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 57 places, 73 transitions, 380 flow, removed 0 selfloop flow, removed 2 redundant places. [2021-03-11 19:57:27,774 INFO L241 Difference]: Finished difference. Result has 59 places, 58 transitions, 312 flow [2021-03-11 19:57:27,774 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=188, PETRI_DIFFERENCE_MINUEND_FLOW=164, PETRI_DIFFERENCE_MINUEND_PLACES=55, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=44, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=28, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=312, PETRI_PLACES=59, PETRI_TRANSITIONS=58} [2021-03-11 19:57:27,774 INFO L335 CegarLoopForPetriNet]: 54 programPoint places, 5 predicate places. [2021-03-11 19:57:27,774 INFO L480 AbstractCegarLoop]: Abstraction has has 59 places, 58 transitions, 312 flow [2021-03-11 19:57:27,774 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 112.33333333333333) internal successors, (337), 3 states have internal predecessors, (337), 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) [2021-03-11 19:57:27,774 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-11 19:57:27,774 INFO L255 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 19:57:27,774 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable56 [2021-03-11 19:57:27,774 INFO L428 AbstractCegarLoop]: === Iteration 3 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-11 19:57:27,774 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 19:57:27,774 INFO L82 PathProgramCache]: Analyzing trace with hash 1218099885, now seen corresponding path program 1 times [2021-03-11 19:57:27,775 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 19:57:27,775 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1519389124] [2021-03-11 19:57:27,775 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 19:57:27,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 19:57:27,786 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 19:57:27,786 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 19:57:27,786 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 19:57:27,786 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-11 19:57:27,788 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 19:57:27,788 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-11 19:57:27,791 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-03-11 19:57:27,791 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1519389124] [2021-03-11 19:57:27,791 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 19:57:27,791 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-11 19:57:27,791 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [370599648] [2021-03-11 19:57:27,791 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-03-11 19:57:27,791 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 19:57:27,791 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-03-11 19:57:27,791 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-03-11 19:57:27,792 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 112 out of 188 [2021-03-11 19:57:27,792 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 59 places, 58 transitions, 312 flow. Second operand has 4 states, 4 states have (on average 113.25) internal successors, (453), 4 states have internal predecessors, (453), 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) [2021-03-11 19:57:27,792 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-11 19:57:27,792 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 112 of 188 [2021-03-11 19:57:27,792 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-11 19:59:10,679 INFO L129 PetriNetUnfolder]: 563131/681930 cut-off events. [2021-03-11 19:59:10,680 INFO L130 PetriNetUnfolder]: For 598655/8889538 co-relation queries the response was YES. [2021-03-11 19:59:14,325 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2017027 conditions, 681930 events. 563131/681930 cut-off events. For 598655/8889538 co-relation queries the response was YES. Maximal size of possible extension queue 21232. Compared 3978809 event pairs, 98306 based on Foata normal form. 16/500409 useless extension candidates. Maximal degree in co-relation 2017001. Up to 554947 conditions per place. [2021-03-11 19:59:17,943 INFO L132 encePairwiseOnDemand]: 186/188 looper letters, 73 selfloop transitions, 2 changer transitions 0/85 dead transitions. [2021-03-11 19:59:17,943 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 60 places, 85 transitions, 588 flow [2021-03-11 19:59:17,944 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-11 19:59:17,944 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-03-11 19:59:17,944 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 383 transitions. [2021-03-11 19:59:17,944 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.6790780141843972 [2021-03-11 19:59:17,944 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 383 transitions. [2021-03-11 19:59:17,944 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 383 transitions. [2021-03-11 19:59:17,944 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-11 19:59:17,944 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 383 transitions. [2021-03-11 19:59:17,945 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 127.66666666666667) internal successors, (383), 3 states have internal predecessors, (383), 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) [2021-03-11 19:59:17,945 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 188.0) internal successors, (752), 4 states have internal predecessors, (752), 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) [2021-03-11 19:59:17,945 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 188.0) internal successors, (752), 4 states have internal predecessors, (752), 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) [2021-03-11 19:59:17,945 INFO L185 Difference]: Start difference. First operand has 59 places, 58 transitions, 312 flow. Second operand 3 states and 383 transitions. [2021-03-11 19:59:17,945 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 60 places, 85 transitions, 588 flow Received shutdown request... Cannot interrupt operation gracefully because timeout expired. Forcing shutdown