/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-RepeatedVariableLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread-ext/46_monabsex2_vs.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-d5b4239aa45c8d22a30959944f2ef622f7386a6d-d5b4239 [2021-03-25 04:19:56,114 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-03-25 04:19:56,117 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-03-25 04:19:56,154 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-03-25 04:19:56,155 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-03-25 04:19:56,157 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-03-25 04:19:56,159 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-03-25 04:19:56,164 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-03-25 04:19:56,166 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-03-25 04:19:56,170 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-03-25 04:19:56,171 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-03-25 04:19:56,172 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-03-25 04:19:56,173 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-03-25 04:19:56,174 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-03-25 04:19:56,175 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-03-25 04:19:56,176 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-03-25 04:19:56,179 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-03-25 04:19:56,179 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-03-25 04:19:56,182 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-03-25 04:19:56,189 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-03-25 04:19:56,190 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-03-25 04:19:56,191 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-03-25 04:19:56,193 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-03-25 04:19:56,194 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-03-25 04:19:56,199 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-03-25 04:19:56,203 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-03-25 04:19:56,204 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-03-25 04:19:56,205 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-03-25 04:19:56,205 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-03-25 04:19:56,206 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-03-25 04:19:56,206 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-03-25 04:19:56,207 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-03-25 04:19:56,207 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-03-25 04:19:56,207 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-03-25 04:19:56,208 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-03-25 04:19:56,208 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-03-25 04:19:56,212 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-RepeatedVariableLbe.epf [2021-03-25 04:19:56,246 INFO L113 SettingsManager]: Loading preferences was successful [2021-03-25 04:19:56,246 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-03-25 04:19:56,249 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-03-25 04:19:56,250 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-03-25 04:19:56,250 INFO L138 SettingsManager]: * Use SBE=true [2021-03-25 04:19:56,250 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-03-25 04:19:56,250 INFO L138 SettingsManager]: * sizeof long=4 [2021-03-25 04:19:56,250 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-03-25 04:19:56,250 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-03-25 04:19:56,251 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-03-25 04:19:56,252 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-03-25 04:19:56,252 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-03-25 04:19:56,252 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-03-25 04:19:56,252 INFO L138 SettingsManager]: * sizeof long double=12 [2021-03-25 04:19:56,252 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-03-25 04:19:56,252 INFO L138 SettingsManager]: * Use constant arrays=true [2021-03-25 04:19:56,253 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-03-25 04:19:56,253 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-03-25 04:19:56,253 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-03-25 04:19:56,253 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-03-25 04:19:56,253 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-03-25 04:19:56,254 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-03-25 04:19:56,254 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-03-25 04:19:56,254 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-03-25 04:19:56,254 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-03-25 04:19:56,254 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-03-25 04:19:56,254 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-03-25 04:19:56,255 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=VARIABLE_BASED_MOVER_CHECK [2021-03-25 04:19:56,255 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-03-25 04:19:56,255 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-03-25 04:19:56,255 INFO L138 SettingsManager]: * Apply repeated Lipton Reduction=true WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-03-25 04:19:56,562 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-03-25 04:19:56,586 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-03-25 04:19:56,589 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-03-25 04:19:56,589 INFO L271 PluginConnector]: Initializing CDTParser... [2021-03-25 04:19:56,590 INFO L275 PluginConnector]: CDTParser initialized [2021-03-25 04:19:56,591 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-ext/46_monabsex2_vs.i [2021-03-25 04:19:56,644 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d2c8da105/01d69ea23b60445a897bfdb680a3f659/FLAGea7484000 [2021-03-25 04:19:57,102 INFO L306 CDTParser]: Found 1 translation units. [2021-03-25 04:19:57,103 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-ext/46_monabsex2_vs.i [2021-03-25 04:19:57,114 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d2c8da105/01d69ea23b60445a897bfdb680a3f659/FLAGea7484000 [2021-03-25 04:19:57,132 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d2c8da105/01d69ea23b60445a897bfdb680a3f659 [2021-03-25 04:19:57,134 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-03-25 04:19:57,136 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-03-25 04:19:57,139 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-03-25 04:19:57,139 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-03-25 04:19:57,142 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-03-25 04:19:57,142 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.03 04:19:57" (1/1) ... [2021-03-25 04:19:57,144 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@214926a4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 04:19:57, skipping insertion in model container [2021-03-25 04:19:57,144 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.03 04:19:57" (1/1) ... [2021-03-25 04:19:57,150 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-03-25 04:19:57,193 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-03-25 04:19:57,368 WARN L612 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2021-03-25 04:19:57,490 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/46_monabsex2_vs.i[30503,30516] [2021-03-25 04:19:57,496 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-03-25 04:19:57,502 INFO L203 MainTranslator]: Completed pre-run [2021-03-25 04:19:57,512 WARN L612 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2021-03-25 04:19:57,526 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/46_monabsex2_vs.i[30503,30516] [2021-03-25 04:19:57,528 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-03-25 04:19:57,585 INFO L208 MainTranslator]: Completed translation [2021-03-25 04:19:57,585 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 04:19:57 WrapperNode [2021-03-25 04:19:57,586 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-03-25 04:19:57,586 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-03-25 04:19:57,586 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-03-25 04:19:57,587 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-03-25 04:19:57,592 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 04:19:57" (1/1) ... [2021-03-25 04:19:57,603 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 04:19:57" (1/1) ... [2021-03-25 04:19:57,616 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-03-25 04:19:57,617 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-03-25 04:19:57,617 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-03-25 04:19:57,617 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-03-25 04:19:57,623 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 04:19:57" (1/1) ... [2021-03-25 04:19:57,623 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 04:19:57" (1/1) ... [2021-03-25 04:19:57,625 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 04:19:57" (1/1) ... [2021-03-25 04:19:57,625 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 04:19:57" (1/1) ... [2021-03-25 04:19:57,629 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 04:19:57" (1/1) ... [2021-03-25 04:19:57,631 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 04:19:57" (1/1) ... [2021-03-25 04:19:57,632 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 04:19:57" (1/1) ... [2021-03-25 04:19:57,634 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-03-25 04:19:57,635 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-03-25 04:19:57,635 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-03-25 04:19:57,635 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-03-25 04:19:57,636 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 04:19:57" (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 [2021-03-25 04:19:57,699 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2021-03-25 04:19:57,699 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2021-03-25 04:19:57,699 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-03-25 04:19:57,700 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-03-25 04:19:57,700 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-03-25 04:19:57,700 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-03-25 04:19:57,700 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-03-25 04:19:57,700 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-03-25 04:19:57,700 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-03-25 04:19:57,701 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-03-25 04:19:57,702 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-03-25 04:19:57,992 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-03-25 04:19:57,992 INFO L299 CfgBuilder]: Removed 5 assume(true) statements. [2021-03-25 04:19:57,994 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.03 04:19:57 BoogieIcfgContainer [2021-03-25 04:19:57,994 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-03-25 04:19:58,000 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-03-25 04:19:58,001 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-03-25 04:19:58,003 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-03-25 04:19:58,003 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.03 04:19:57" (1/3) ... [2021-03-25 04:19:58,004 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@77998193 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.03 04:19:58, skipping insertion in model container [2021-03-25 04:19:58,004 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 04:19:57" (2/3) ... [2021-03-25 04:19:58,004 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@77998193 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.03 04:19:58, skipping insertion in model container [2021-03-25 04:19:58,004 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.03 04:19:57" (3/3) ... [2021-03-25 04:19:58,005 INFO L111 eAbstractionObserver]: Analyzing ICFG 46_monabsex2_vs.i [2021-03-25 04:19:58,010 INFO L149 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-03-25 04:19:58,015 INFO L161 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-03-25 04:19:58,016 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-03-25 04:19:58,043 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:19:58,043 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:19:58,043 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:19:58,044 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:19:58,044 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:19:58,044 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:19:58,044 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:19:58,044 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:19:58,045 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:19:58,045 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:19:58,045 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:19:58,045 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:19:58,047 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:19:58,047 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:19:58,048 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:19:58,048 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:19:58,052 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-03-25 04:19:58,066 INFO L253 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2021-03-25 04:19:58,083 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-03-25 04:19:58,083 INFO L377 AbstractCegarLoop]: Hoare is false [2021-03-25 04:19:58,083 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-03-25 04:19:58,083 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-03-25 04:19:58,083 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-03-25 04:19:58,083 INFO L381 AbstractCegarLoop]: Difference is false [2021-03-25 04:19:58,083 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-03-25 04:19:58,084 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-03-25 04:19:58,091 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 32 places, 30 transitions, 65 flow [2021-03-25 04:19:58,111 INFO L129 PetriNetUnfolder]: 2/38 cut-off events. [2021-03-25 04:19:58,111 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-25 04:19:58,113 INFO L84 FinitePrefix]: Finished finitePrefix Result has 43 conditions, 38 events. 2/38 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 50 event pairs, 0 based on Foata normal form. 0/33 useless extension candidates. Maximal degree in co-relation 20. Up to 4 conditions per place. [2021-03-25 04:19:58,113 INFO L82 GeneralOperation]: Start removeDead. Operand has 32 places, 30 transitions, 65 flow [2021-03-25 04:19:58,116 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 32 places, 30 transitions, 65 flow [2021-03-25 04:19:58,117 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 04:19:58,124 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 32 places, 30 transitions, 65 flow [2021-03-25 04:19:58,126 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 32 places, 30 transitions, 65 flow [2021-03-25 04:19:58,127 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 32 places, 30 transitions, 65 flow [2021-03-25 04:19:58,135 INFO L129 PetriNetUnfolder]: 2/38 cut-off events. [2021-03-25 04:19:58,136 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-25 04:19:58,136 INFO L84 FinitePrefix]: Finished finitePrefix Result has 43 conditions, 38 events. 2/38 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 49 event pairs, 0 based on Foata normal form. 0/33 useless extension candidates. Maximal degree in co-relation 20. Up to 4 conditions per place. [2021-03-25 04:19:58,137 INFO L142 LiptonReduction]: Number of co-enabled transitions 140 [2021-03-25 04:19:59,018 WARN L205 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 59 [2021-03-25 04:19:59,184 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 59 [2021-03-25 04:19:59,233 INFO L154 LiptonReduction]: Checked pairs total: 63 [2021-03-25 04:19:59,233 INFO L156 LiptonReduction]: Total number of compositions: 20 [2021-03-25 04:19:59,235 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 1119 [2021-03-25 04:19:59,240 INFO L129 PetriNetUnfolder]: 0/6 cut-off events. [2021-03-25 04:19:59,240 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-25 04:19:59,241 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 04:19:59,241 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2021-03-25 04:19:59,241 INFO L428 AbstractCegarLoop]: === Iteration 1 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-25 04:19:59,245 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 04:19:59,245 INFO L82 PathProgramCache]: Analyzing trace with hash 131104392, now seen corresponding path program 1 times [2021-03-25 04:19:59,252 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 04:19:59,252 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1561827646] [2021-03-25 04:19:59,252 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 04:19:59,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 04:19:59,437 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 04:19:59,439 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 04:19:59,444 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 04:19:59,445 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1561827646] [2021-03-25 04:19:59,445 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 04:19:59,445 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-03-25 04:19:59,446 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1124761015] [2021-03-25 04:19:59,452 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-03-25 04:19:59,452 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 04:19:59,462 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-03-25 04:19:59,463 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-25 04:19:59,465 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 34 out of 50 [2021-03-25 04:19:59,466 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 14 places, 11 transitions, 27 flow. Second operand has 3 states, 3 states have (on average 34.666666666666664) internal successors, (104), 3 states have internal predecessors, (104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:19:59,467 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 04:19:59,467 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 34 of 50 [2021-03-25 04:19:59,468 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 04:19:59,479 INFO L129 PetriNetUnfolder]: 0/10 cut-off events. [2021-03-25 04:19:59,479 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-25 04:19:59,479 INFO L84 FinitePrefix]: Finished finitePrefix Result has 19 conditions, 10 events. 0/10 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 4 event pairs, 0 based on Foata normal form. 3/13 useless extension candidates. Maximal degree in co-relation 0. Up to 2 conditions per place. [2021-03-25 04:19:59,480 INFO L132 encePairwiseOnDemand]: 46/50 looper letters, 1 selfloop transitions, 2 changer transitions 0/8 dead transitions. [2021-03-25 04:19:59,480 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 13 places, 8 transitions, 27 flow [2021-03-25 04:19:59,481 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-25 04:19:59,483 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-03-25 04:19:59,488 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 108 transitions. [2021-03-25 04:19:59,490 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.72 [2021-03-25 04:19:59,491 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 108 transitions. [2021-03-25 04:19:59,491 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 108 transitions. [2021-03-25 04:19:59,492 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 04:19:59,494 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 108 transitions. [2021-03-25 04:19:59,497 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 36.0) internal successors, (108), 3 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:19:59,503 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 50.0) internal successors, (200), 4 states have internal predecessors, (200), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:19:59,504 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 50.0) internal successors, (200), 4 states have internal predecessors, (200), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:19:59,505 INFO L185 Difference]: Start difference. First operand has 14 places, 11 transitions, 27 flow. Second operand 3 states and 108 transitions. [2021-03-25 04:19:59,506 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 13 places, 8 transitions, 27 flow [2021-03-25 04:19:59,507 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 13 places, 8 transitions, 27 flow, removed 0 selfloop flow, removed 0 redundant places. [2021-03-25 04:19:59,508 INFO L241 Difference]: Finished difference. Result has 13 places, 8 transitions, 25 flow [2021-03-25 04:19:59,510 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=50, PETRI_DIFFERENCE_MINUEND_FLOW=21, PETRI_DIFFERENCE_MINUEND_PLACES=11, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=8, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=6, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=25, PETRI_PLACES=13, PETRI_TRANSITIONS=8} [2021-03-25 04:19:59,510 INFO L343 CegarLoopForPetriNet]: 14 programPoint places, -1 predicate places. [2021-03-25 04:19:59,511 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 04:19:59,511 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 13 places, 8 transitions, 25 flow [2021-03-25 04:19:59,511 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 13 places, 8 transitions, 25 flow [2021-03-25 04:19:59,511 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 13 places, 8 transitions, 25 flow [2021-03-25 04:19:59,513 INFO L129 PetriNetUnfolder]: 0/10 cut-off events. [2021-03-25 04:19:59,514 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-25 04:19:59,514 INFO L84 FinitePrefix]: Finished finitePrefix Result has 18 conditions, 10 events. 0/10 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 3 event pairs, 0 based on Foata normal form. 0/10 useless extension candidates. Maximal degree in co-relation 0. Up to 2 conditions per place. [2021-03-25 04:19:59,514 INFO L142 LiptonReduction]: Number of co-enabled transitions 16 [2021-03-25 04:19:59,578 INFO L154 LiptonReduction]: Checked pairs total: 7 [2021-03-25 04:19:59,578 INFO L156 LiptonReduction]: Total number of compositions: 3 [2021-03-25 04:19:59,578 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 67 [2021-03-25 04:19:59,583 INFO L480 AbstractCegarLoop]: Abstraction has has 12 places, 7 transitions, 23 flow [2021-03-25 04:19:59,584 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 34.666666666666664) internal successors, (104), 3 states have internal predecessors, (104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:19:59,584 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 04:19:59,584 INFO L263 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1] [2021-03-25 04:19:59,584 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-03-25 04:19:59,584 INFO L428 AbstractCegarLoop]: === Iteration 2 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-25 04:19:59,585 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 04:19:59,585 INFO L82 PathProgramCache]: Analyzing trace with hash 1604685753, now seen corresponding path program 1 times [2021-03-25 04:19:59,585 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 04:19:59,585 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1810051012] [2021-03-25 04:19:59,586 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 04:19:59,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-03-25 04:19:59,621 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-03-25 04:19:59,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-03-25 04:19:59,631 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-03-25 04:19:59,643 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-03-25 04:19:59,643 INFO L634 BasicCegarLoop]: Counterexample might be feasible [2021-03-25 04:19:59,644 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-03-25 04:19:59,644 WARN L342 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2021-03-25 04:19:59,645 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2021-03-25 04:19:59,651 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:19:59,651 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:19:59,651 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:19:59,651 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:19:59,651 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:19:59,651 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:19:59,651 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:19:59,651 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:19:59,652 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:19:59,652 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:19:59,652 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:19:59,652 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:19:59,652 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:19:59,653 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:19:59,653 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:19:59,653 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:19:59,653 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:19:59,653 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:19:59,653 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:19:59,653 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:19:59,653 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:19:59,654 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:19:59,654 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:19:59,654 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:19:59,654 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:19:59,654 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:19:59,655 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:19:59,655 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:19:59,656 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:19:59,656 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:19:59,656 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:19:59,656 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:19:59,657 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-03-25 04:19:59,657 INFO L253 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2021-03-25 04:19:59,658 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-03-25 04:19:59,658 INFO L377 AbstractCegarLoop]: Hoare is false [2021-03-25 04:19:59,658 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-03-25 04:19:59,659 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-03-25 04:19:59,659 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-03-25 04:19:59,659 INFO L381 AbstractCegarLoop]: Difference is false [2021-03-25 04:19:59,659 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-03-25 04:19:59,659 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-03-25 04:19:59,660 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 42 places, 38 transitions, 88 flow [2021-03-25 04:19:59,667 INFO L129 PetriNetUnfolder]: 3/55 cut-off events. [2021-03-25 04:19:59,667 INFO L130 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2021-03-25 04:19:59,668 INFO L84 FinitePrefix]: Finished finitePrefix Result has 65 conditions, 55 events. 3/55 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 97 event pairs, 0 based on Foata normal form. 0/47 useless extension candidates. Maximal degree in co-relation 39. Up to 6 conditions per place. [2021-03-25 04:19:59,668 INFO L82 GeneralOperation]: Start removeDead. Operand has 42 places, 38 transitions, 88 flow [2021-03-25 04:19:59,669 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 42 places, 38 transitions, 88 flow [2021-03-25 04:19:59,669 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 04:19:59,669 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 42 places, 38 transitions, 88 flow [2021-03-25 04:19:59,669 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 42 places, 38 transitions, 88 flow [2021-03-25 04:19:59,670 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 42 places, 38 transitions, 88 flow [2021-03-25 04:19:59,676 INFO L129 PetriNetUnfolder]: 3/55 cut-off events. [2021-03-25 04:19:59,676 INFO L130 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2021-03-25 04:19:59,676 INFO L84 FinitePrefix]: Finished finitePrefix Result has 65 conditions, 55 events. 3/55 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 102 event pairs, 0 based on Foata normal form. 0/47 useless extension candidates. Maximal degree in co-relation 39. Up to 6 conditions per place. [2021-03-25 04:19:59,677 INFO L142 LiptonReduction]: Number of co-enabled transitions 392 [2021-03-25 04:20:00,634 INFO L154 LiptonReduction]: Checked pairs total: 482 [2021-03-25 04:20:00,634 INFO L156 LiptonReduction]: Total number of compositions: 23 [2021-03-25 04:20:00,635 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 966 [2021-03-25 04:20:00,637 INFO L129 PetriNetUnfolder]: 0/6 cut-off events. [2021-03-25 04:20:00,637 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-25 04:20:00,637 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 04:20:00,637 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2021-03-25 04:20:00,637 INFO L428 AbstractCegarLoop]: === Iteration 1 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2021-03-25 04:20:00,638 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 04:20:00,638 INFO L82 PathProgramCache]: Analyzing trace with hash 199475965, now seen corresponding path program 1 times [2021-03-25 04:20:00,638 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 04:20:00,638 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [904495109] [2021-03-25 04:20:00,638 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 04:20:00,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 04:20:00,661 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 04:20:00,661 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 04:20:00,664 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 04:20:00,664 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [904495109] [2021-03-25 04:20:00,664 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 04:20:00,664 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-03-25 04:20:00,664 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1415949098] [2021-03-25 04:20:00,664 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-03-25 04:20:00,665 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 04:20:00,665 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-03-25 04:20:00,665 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-25 04:20:00,666 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 40 out of 61 [2021-03-25 04:20:00,666 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 22 places, 17 transitions, 46 flow. Second operand has 3 states, 3 states have (on average 40.666666666666664) internal successors, (122), 3 states have internal predecessors, (122), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:20:00,666 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 04:20:00,666 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 40 of 61 [2021-03-25 04:20:00,666 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 04:20:00,681 INFO L129 PetriNetUnfolder]: 4/29 cut-off events. [2021-03-25 04:20:00,681 INFO L130 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2021-03-25 04:20:00,681 INFO L84 FinitePrefix]: Finished finitePrefix Result has 55 conditions, 29 events. 4/29 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 62 event pairs, 1 based on Foata normal form. 13/38 useless extension candidates. Maximal degree in co-relation 34. Up to 11 conditions per place. [2021-03-25 04:20:00,681 INFO L132 encePairwiseOnDemand]: 55/61 looper letters, 8 selfloop transitions, 3 changer transitions 0/19 dead transitions. [2021-03-25 04:20:00,682 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 22 places, 19 transitions, 72 flow [2021-03-25 04:20:00,682 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-25 04:20:00,682 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-03-25 04:20:00,683 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 135 transitions. [2021-03-25 04:20:00,683 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7377049180327869 [2021-03-25 04:20:00,683 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 135 transitions. [2021-03-25 04:20:00,683 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 135 transitions. [2021-03-25 04:20:00,684 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 04:20:00,684 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 135 transitions. [2021-03-25 04:20:00,685 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 45.0) internal successors, (135), 3 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:20:00,686 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 61.0) internal successors, (244), 4 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) [2021-03-25 04:20:00,686 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 61.0) internal successors, (244), 4 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) [2021-03-25 04:20:00,686 INFO L185 Difference]: Start difference. First operand has 22 places, 17 transitions, 46 flow. Second operand 3 states and 135 transitions. [2021-03-25 04:20:00,686 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 22 places, 19 transitions, 72 flow [2021-03-25 04:20:00,686 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 22 places, 19 transitions, 70 flow, removed 1 selfloop flow, removed 0 redundant places. [2021-03-25 04:20:00,687 INFO L241 Difference]: Finished difference. Result has 23 places, 17 transitions, 61 flow [2021-03-25 04:20:00,687 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=61, PETRI_DIFFERENCE_MINUEND_FLOW=40, PETRI_DIFFERENCE_MINUEND_PLACES=20, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=15, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=12, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=61, PETRI_PLACES=23, PETRI_TRANSITIONS=17} [2021-03-25 04:20:00,687 INFO L343 CegarLoopForPetriNet]: 22 programPoint places, 1 predicate places. [2021-03-25 04:20:00,688 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 04:20:00,688 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 23 places, 17 transitions, 61 flow [2021-03-25 04:20:00,688 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 23 places, 17 transitions, 61 flow [2021-03-25 04:20:00,688 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 23 places, 17 transitions, 61 flow [2021-03-25 04:20:00,691 INFO L129 PetriNetUnfolder]: 1/22 cut-off events. [2021-03-25 04:20:00,691 INFO L130 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2021-03-25 04:20:00,691 INFO L84 FinitePrefix]: Finished finitePrefix Result has 42 conditions, 22 events. 1/22 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 32 event pairs, 0 based on Foata normal form. 0/22 useless extension candidates. Maximal degree in co-relation 23. Up to 7 conditions per place. [2021-03-25 04:20:00,692 INFO L142 LiptonReduction]: Number of co-enabled transitions 102 [2021-03-25 04:20:00,693 INFO L154 LiptonReduction]: Checked pairs total: 52 [2021-03-25 04:20:00,693 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 04:20:00,693 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 5 [2021-03-25 04:20:00,694 INFO L480 AbstractCegarLoop]: Abstraction has has 23 places, 17 transitions, 61 flow [2021-03-25 04:20:00,694 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 40.666666666666664) internal successors, (122), 3 states have internal predecessors, (122), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:20:00,694 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 04:20:00,694 INFO L263 CegarLoopForPetriNet]: trace histogram [3, 3, 2, 1, 1, 1, 1] [2021-03-25 04:20:00,694 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-03-25 04:20:00,694 INFO L428 AbstractCegarLoop]: === Iteration 2 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2021-03-25 04:20:00,695 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 04:20:00,695 INFO L82 PathProgramCache]: Analyzing trace with hash -230395477, now seen corresponding path program 1 times [2021-03-25 04:20:00,695 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 04:20:00,695 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [11685338] [2021-03-25 04:20:00,695 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 04:20:00,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-03-25 04:20:00,707 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-03-25 04:20:00,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-03-25 04:20:00,716 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-03-25 04:20:00,720 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-03-25 04:20:00,720 INFO L634 BasicCegarLoop]: Counterexample might be feasible [2021-03-25 04:20:00,720 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-03-25 04:20:00,720 WARN L342 ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis [2021-03-25 04:20:00,721 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances. [2021-03-25 04:20:00,727 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:20:00,727 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:20:00,727 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:20:00,727 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:20:00,727 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:20:00,727 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:20:00,727 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:20:00,728 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:20:00,728 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:20:00,728 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:20:00,728 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:20:00,728 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:20:00,728 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:20:00,728 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:20:00,728 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:20:00,729 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:20:00,729 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:20:00,729 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:20:00,729 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:20:00,729 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:20:00,729 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:20:00,729 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:20:00,729 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:20:00,729 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:20:00,730 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:20:00,730 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:20:00,730 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:20:00,730 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:20:00,730 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:20:00,730 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:20:00,730 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:20:00,730 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:20:00,731 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:20:00,731 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:20:00,731 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:20:00,731 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:20:00,731 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:20:00,731 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:20:00,731 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:20:00,731 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:20:00,732 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:20:00,733 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:20:00,733 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:20:00,733 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:20:00,734 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:20:00,734 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:20:00,734 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:20:00,734 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:20:00,735 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-03-25 04:20:00,735 INFO L253 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2021-03-25 04:20:00,736 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-03-25 04:20:00,736 INFO L377 AbstractCegarLoop]: Hoare is false [2021-03-25 04:20:00,736 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-03-25 04:20:00,736 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-03-25 04:20:00,736 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-03-25 04:20:00,736 INFO L381 AbstractCegarLoop]: Difference is false [2021-03-25 04:20:00,736 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-03-25 04:20:00,736 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-03-25 04:20:00,738 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 52 places, 46 transitions, 113 flow [2021-03-25 04:20:00,744 INFO L129 PetriNetUnfolder]: 4/72 cut-off events. [2021-03-25 04:20:00,744 INFO L130 PetriNetUnfolder]: For 7/7 co-relation queries the response was YES. [2021-03-25 04:20:00,745 INFO L84 FinitePrefix]: Finished finitePrefix Result has 88 conditions, 72 events. 4/72 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 152 event pairs, 0 based on Foata normal form. 0/61 useless extension candidates. Maximal degree in co-relation 59. Up to 8 conditions per place. [2021-03-25 04:20:00,745 INFO L82 GeneralOperation]: Start removeDead. Operand has 52 places, 46 transitions, 113 flow [2021-03-25 04:20:00,745 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 52 places, 46 transitions, 113 flow [2021-03-25 04:20:00,746 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 04:20:00,746 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 52 places, 46 transitions, 113 flow [2021-03-25 04:20:00,746 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 52 places, 46 transitions, 113 flow [2021-03-25 04:20:00,746 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 52 places, 46 transitions, 113 flow [2021-03-25 04:20:00,752 INFO L129 PetriNetUnfolder]: 4/72 cut-off events. [2021-03-25 04:20:00,753 INFO L130 PetriNetUnfolder]: For 7/7 co-relation queries the response was YES. [2021-03-25 04:20:00,753 INFO L84 FinitePrefix]: Finished finitePrefix Result has 88 conditions, 72 events. 4/72 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 143 event pairs, 0 based on Foata normal form. 0/61 useless extension candidates. Maximal degree in co-relation 59. Up to 8 conditions per place. [2021-03-25 04:20:00,754 INFO L142 LiptonReduction]: Number of co-enabled transitions 756 [2021-03-25 04:20:01,706 INFO L154 LiptonReduction]: Checked pairs total: 1089 [2021-03-25 04:20:01,706 INFO L156 LiptonReduction]: Total number of compositions: 27 [2021-03-25 04:20:01,706 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 960 [2021-03-25 04:20:01,716 INFO L129 PetriNetUnfolder]: 0/7 cut-off events. [2021-03-25 04:20:01,716 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-25 04:20:01,716 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 04:20:01,717 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2021-03-25 04:20:01,717 INFO L428 AbstractCegarLoop]: === Iteration 1 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2021-03-25 04:20:01,717 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 04:20:01,717 INFO L82 PathProgramCache]: Analyzing trace with hash 276405487, now seen corresponding path program 1 times [2021-03-25 04:20:01,717 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 04:20:01,718 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1138074825] [2021-03-25 04:20:01,718 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 04:20:01,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 04:20:01,737 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 04:20:01,738 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 04:20:01,740 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 04:20:01,740 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1138074825] [2021-03-25 04:20:01,740 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 04:20:01,740 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-03-25 04:20:01,741 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1330684850] [2021-03-25 04:20:01,741 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-03-25 04:20:01,741 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 04:20:01,741 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-03-25 04:20:01,741 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-25 04:20:01,742 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 45 out of 73 [2021-03-25 04:20:01,742 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 29 places, 22 transitions, 65 flow. Second operand has 3 states, 3 states have (on average 45.666666666666664) internal successors, (137), 3 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:20:01,743 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 04:20:01,743 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 45 of 73 [2021-03-25 04:20:01,743 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 04:20:01,777 INFO L129 PetriNetUnfolder]: 43/119 cut-off events. [2021-03-25 04:20:01,778 INFO L130 PetriNetUnfolder]: For 7/7 co-relation queries the response was YES. [2021-03-25 04:20:01,778 INFO L84 FinitePrefix]: Finished finitePrefix Result has 224 conditions, 119 events. 43/119 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 511 event pairs, 19 based on Foata normal form. 49/136 useless extension candidates. Maximal degree in co-relation 193. Up to 76 conditions per place. [2021-03-25 04:20:01,779 INFO L132 encePairwiseOnDemand]: 65/73 looper letters, 12 selfloop transitions, 4 changer transitions 0/26 dead transitions. [2021-03-25 04:20:01,779 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 29 places, 26 transitions, 105 flow [2021-03-25 04:20:01,788 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-25 04:20:01,788 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-03-25 04:20:01,789 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 156 transitions. [2021-03-25 04:20:01,790 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7123287671232876 [2021-03-25 04:20:01,790 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 156 transitions. [2021-03-25 04:20:01,790 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 156 transitions. [2021-03-25 04:20:01,790 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 04:20:01,790 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 156 transitions. [2021-03-25 04:20:01,791 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 52.0) internal successors, (156), 3 states have internal predecessors, (156), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:20:01,792 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 73.0) internal successors, (292), 4 states have internal predecessors, (292), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:20:01,792 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 73.0) internal successors, (292), 4 states have internal predecessors, (292), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:20:01,792 INFO L185 Difference]: Start difference. First operand has 29 places, 22 transitions, 65 flow. Second operand 3 states and 156 transitions. [2021-03-25 04:20:01,792 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 29 places, 26 transitions, 105 flow [2021-03-25 04:20:01,793 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 29 places, 26 transitions, 99 flow, removed 3 selfloop flow, removed 0 redundant places. [2021-03-25 04:20:01,793 INFO L241 Difference]: Finished difference. Result has 30 places, 23 transitions, 85 flow [2021-03-25 04:20:01,794 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=73, PETRI_DIFFERENCE_MINUEND_FLOW=55, PETRI_DIFFERENCE_MINUEND_PLACES=27, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=20, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=16, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=85, PETRI_PLACES=30, PETRI_TRANSITIONS=23} [2021-03-25 04:20:01,794 INFO L343 CegarLoopForPetriNet]: 29 programPoint places, 1 predicate places. [2021-03-25 04:20:01,794 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 04:20:01,794 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 30 places, 23 transitions, 85 flow [2021-03-25 04:20:01,794 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 30 places, 23 transitions, 85 flow [2021-03-25 04:20:01,794 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 30 places, 23 transitions, 85 flow [2021-03-25 04:20:01,807 INFO L129 PetriNetUnfolder]: 14/55 cut-off events. [2021-03-25 04:20:01,807 INFO L130 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2021-03-25 04:20:01,808 INFO L84 FinitePrefix]: Finished finitePrefix Result has 107 conditions, 55 events. 14/55 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 179 event pairs, 7 based on Foata normal form. 0/50 useless extension candidates. Maximal degree in co-relation 87. Up to 34 conditions per place. [2021-03-25 04:20:01,808 INFO L142 LiptonReduction]: Number of co-enabled transitions 242 [2021-03-25 04:20:01,810 INFO L154 LiptonReduction]: Checked pairs total: 149 [2021-03-25 04:20:01,810 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 04:20:01,810 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 16 [2021-03-25 04:20:01,811 INFO L480 AbstractCegarLoop]: Abstraction has has 30 places, 23 transitions, 85 flow [2021-03-25 04:20:01,811 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 45.666666666666664) internal successors, (137), 3 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:20:01,811 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 04:20:01,812 INFO L263 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 04:20:01,812 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-03-25 04:20:01,812 INFO L428 AbstractCegarLoop]: === Iteration 2 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2021-03-25 04:20:01,812 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 04:20:01,812 INFO L82 PathProgramCache]: Analyzing trace with hash 676572339, now seen corresponding path program 1 times [2021-03-25 04:20:01,813 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 04:20:01,813 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2031446515] [2021-03-25 04:20:01,813 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 04:20:01,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 04:20:01,856 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 04:20:01,857 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 04:20:01,858 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 04:20:01,858 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 04:20:01,860 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 04:20:01,861 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2031446515] [2021-03-25 04:20:01,861 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 04:20:01,861 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-03-25 04:20:01,861 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [620845875] [2021-03-25 04:20:01,861 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-03-25 04:20:01,861 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 04:20:01,862 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-03-25 04:20:01,862 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-25 04:20:01,862 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 51 out of 73 [2021-03-25 04:20:01,863 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 30 places, 23 transitions, 85 flow. Second operand has 3 states, 3 states have (on average 52.333333333333336) internal successors, (157), 3 states have internal predecessors, (157), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:20:01,863 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 04:20:01,863 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 51 of 73 [2021-03-25 04:20:01,863 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 04:20:01,902 INFO L129 PetriNetUnfolder]: 38/108 cut-off events. [2021-03-25 04:20:01,902 INFO L130 PetriNetUnfolder]: For 23/39 co-relation queries the response was YES. [2021-03-25 04:20:01,903 INFO L84 FinitePrefix]: Finished finitePrefix Result has 237 conditions, 108 events. 38/108 cut-off events. For 23/39 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 383 event pairs, 7 based on Foata normal form. 22/122 useless extension candidates. Maximal degree in co-relation 215. Up to 42 conditions per place. [2021-03-25 04:20:01,903 INFO L132 encePairwiseOnDemand]: 67/73 looper letters, 10 selfloop transitions, 3 changer transitions 0/26 dead transitions. [2021-03-25 04:20:01,903 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 29 places, 26 transitions, 111 flow [2021-03-25 04:20:01,906 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-25 04:20:01,906 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-03-25 04:20:01,909 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 169 transitions. [2021-03-25 04:20:01,910 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.771689497716895 [2021-03-25 04:20:01,910 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 169 transitions. [2021-03-25 04:20:01,910 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 169 transitions. [2021-03-25 04:20:01,910 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 04:20:01,911 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 169 transitions. [2021-03-25 04:20:01,912 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 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) [2021-03-25 04:20:01,913 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 73.0) internal successors, (292), 4 states have internal predecessors, (292), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:20:01,913 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 73.0) internal successors, (292), 4 states have internal predecessors, (292), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:20:01,913 INFO L185 Difference]: Start difference. First operand has 30 places, 23 transitions, 85 flow. Second operand 3 states and 169 transitions. [2021-03-25 04:20:01,913 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 29 places, 26 transitions, 111 flow [2021-03-25 04:20:01,914 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 28 places, 26 transitions, 107 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-03-25 04:20:01,915 INFO L241 Difference]: Finished difference. Result has 29 places, 23 transitions, 90 flow [2021-03-25 04:20:01,915 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=73, PETRI_DIFFERENCE_MINUEND_FLOW=69, PETRI_DIFFERENCE_MINUEND_PLACES=26, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=20, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=17, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=90, PETRI_PLACES=29, PETRI_TRANSITIONS=23} [2021-03-25 04:20:01,915 INFO L343 CegarLoopForPetriNet]: 29 programPoint places, 0 predicate places. [2021-03-25 04:20:01,915 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 04:20:01,916 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 29 places, 23 transitions, 90 flow [2021-03-25 04:20:01,916 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 29 places, 23 transitions, 90 flow [2021-03-25 04:20:01,916 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 29 places, 23 transitions, 90 flow [2021-03-25 04:20:01,923 INFO L129 PetriNetUnfolder]: 12/51 cut-off events. [2021-03-25 04:20:01,923 INFO L130 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2021-03-25 04:20:01,924 INFO L84 FinitePrefix]: Finished finitePrefix Result has 102 conditions, 51 events. 12/51 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 107 event pairs, 2 based on Foata normal form. 0/48 useless extension candidates. Maximal degree in co-relation 82. Up to 21 conditions per place. [2021-03-25 04:20:01,925 INFO L142 LiptonReduction]: Number of co-enabled transitions 224 [2021-03-25 04:20:01,926 INFO L154 LiptonReduction]: Checked pairs total: 60 [2021-03-25 04:20:01,926 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 04:20:01,926 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 11 [2021-03-25 04:20:01,927 INFO L480 AbstractCegarLoop]: Abstraction has has 29 places, 23 transitions, 90 flow [2021-03-25 04:20:01,927 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 52.333333333333336) internal successors, (157), 3 states have internal predecessors, (157), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:20:01,927 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 04:20:01,928 INFO L263 CegarLoopForPetriNet]: trace histogram [4, 4, 3, 1, 1, 1, 1, 1] [2021-03-25 04:20:01,928 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-03-25 04:20:01,928 INFO L428 AbstractCegarLoop]: === Iteration 3 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2021-03-25 04:20:01,928 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 04:20:01,928 INFO L82 PathProgramCache]: Analyzing trace with hash -2049568373, now seen corresponding path program 1 times [2021-03-25 04:20:01,929 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 04:20:01,929 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1547046410] [2021-03-25 04:20:01,929 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 04:20:01,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-03-25 04:20:01,939 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-03-25 04:20:01,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-03-25 04:20:01,947 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-03-25 04:20:01,951 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-03-25 04:20:01,951 INFO L634 BasicCegarLoop]: Counterexample might be feasible [2021-03-25 04:20:01,952 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-03-25 04:20:01,952 WARN L342 ceAbstractionStarter]: 3 thread instances were not sufficient, I will increase this number and restart the analysis [2021-03-25 04:20:01,952 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 4 thread instances. [2021-03-25 04:20:01,958 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:20:01,958 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:20:01,958 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:20:01,959 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:20:01,959 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:20:01,959 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:20:01,959 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:20:01,959 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:20:01,959 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:20:01,959 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:20:01,959 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:20:01,960 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:20:01,960 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:20:01,960 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:20:01,960 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:20:01,960 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:20:01,960 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:20:01,960 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:20:01,960 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:20:01,960 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:20:01,961 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:20:01,961 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:20:01,961 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:20:01,961 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:20:01,961 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:20:01,961 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:20:01,961 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:20:01,961 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:20:01,961 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:20:01,962 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:20:01,962 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:20:01,962 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:20:01,962 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:20:01,962 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:20:01,962 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:20:01,962 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:20:01,963 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:20:01,963 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:20:01,963 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:20:01,963 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:20:01,963 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:20:01,963 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:20:01,963 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:20:01,963 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:20:01,963 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:20:01,964 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:20:01,964 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:20:01,964 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:20:01,964 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:20:01,964 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:20:01,964 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:20:01,967 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:20:01,968 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:20:01,969 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:20:01,969 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:20:01,969 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:20:01,970 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:20:01,970 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:20:01,970 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:20:01,970 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:20:01,971 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:20:01,971 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:20:01,971 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:20:01,971 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:20:01,972 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-03-25 04:20:01,972 INFO L253 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2021-03-25 04:20:01,973 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-03-25 04:20:01,973 INFO L377 AbstractCegarLoop]: Hoare is false [2021-03-25 04:20:01,974 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-03-25 04:20:01,974 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-03-25 04:20:01,974 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-03-25 04:20:01,974 INFO L381 AbstractCegarLoop]: Difference is false [2021-03-25 04:20:01,974 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-03-25 04:20:01,974 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-03-25 04:20:01,975 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 62 places, 54 transitions, 140 flow [2021-03-25 04:20:01,982 INFO L129 PetriNetUnfolder]: 5/89 cut-off events. [2021-03-25 04:20:01,982 INFO L130 PetriNetUnfolder]: For 16/16 co-relation queries the response was YES. [2021-03-25 04:20:01,982 INFO L84 FinitePrefix]: Finished finitePrefix Result has 112 conditions, 89 events. 5/89 cut-off events. For 16/16 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 178 event pairs, 0 based on Foata normal form. 0/75 useless extension candidates. Maximal degree in co-relation 80. Up to 10 conditions per place. [2021-03-25 04:20:01,982 INFO L82 GeneralOperation]: Start removeDead. Operand has 62 places, 54 transitions, 140 flow [2021-03-25 04:20:01,983 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 62 places, 54 transitions, 140 flow [2021-03-25 04:20:01,983 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 04:20:01,983 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 62 places, 54 transitions, 140 flow [2021-03-25 04:20:01,984 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 62 places, 54 transitions, 140 flow [2021-03-25 04:20:01,984 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 62 places, 54 transitions, 140 flow [2021-03-25 04:20:01,990 INFO L129 PetriNetUnfolder]: 5/89 cut-off events. [2021-03-25 04:20:01,990 INFO L130 PetriNetUnfolder]: For 16/16 co-relation queries the response was YES. [2021-03-25 04:20:01,991 INFO L84 FinitePrefix]: Finished finitePrefix Result has 112 conditions, 89 events. 5/89 cut-off events. For 16/16 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 207 event pairs, 0 based on Foata normal form. 0/75 useless extension candidates. Maximal degree in co-relation 80. Up to 10 conditions per place. [2021-03-25 04:20:01,992 INFO L142 LiptonReduction]: Number of co-enabled transitions 1232 [2021-03-25 04:20:03,134 INFO L154 LiptonReduction]: Checked pairs total: 1723 [2021-03-25 04:20:03,135 INFO L156 LiptonReduction]: Total number of compositions: 31 [2021-03-25 04:20:03,135 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 1152 [2021-03-25 04:20:03,137 INFO L129 PetriNetUnfolder]: 0/7 cut-off events. [2021-03-25 04:20:03,137 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-25 04:20:03,137 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 04:20:03,137 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2021-03-25 04:20:03,137 INFO L428 AbstractCegarLoop]: === Iteration 1 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-25 04:20:03,137 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 04:20:03,137 INFO L82 PathProgramCache]: Analyzing trace with hash 364786669, now seen corresponding path program 1 times [2021-03-25 04:20:03,137 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 04:20:03,138 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [416104254] [2021-03-25 04:20:03,138 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 04:20:03,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 04:20:03,151 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 04:20:03,152 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 04:20:03,154 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 04:20:03,154 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [416104254] [2021-03-25 04:20:03,154 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 04:20:03,154 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-03-25 04:20:03,154 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1030907000] [2021-03-25 04:20:03,154 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-03-25 04:20:03,155 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 04:20:03,155 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-03-25 04:20:03,155 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-25 04:20:03,156 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 51 out of 85 [2021-03-25 04:20:03,156 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 36 places, 27 transitions, 86 flow. Second operand has 3 states, 3 states have (on average 51.666666666666664) internal successors, (155), 3 states have internal predecessors, (155), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:20:03,156 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 04:20:03,156 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 51 of 85 [2021-03-25 04:20:03,156 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 04:20:03,226 INFO L129 PetriNetUnfolder]: 318/596 cut-off events. [2021-03-25 04:20:03,226 INFO L130 PetriNetUnfolder]: For 16/16 co-relation queries the response was YES. [2021-03-25 04:20:03,228 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1129 conditions, 596 events. 318/596 cut-off events. For 16/16 co-relation queries the response was YES. Maximal size of possible extension queue 91. Compared 3498 event pairs, 189 based on Foata normal form. 197/603 useless extension candidates. Maximal degree in co-relation 1087. Up to 477 conditions per place. [2021-03-25 04:20:03,232 INFO L132 encePairwiseOnDemand]: 75/85 looper letters, 16 selfloop transitions, 5 changer transitions 0/33 dead transitions. [2021-03-25 04:20:03,233 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 36 places, 33 transitions, 140 flow [2021-03-25 04:20:03,233 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-25 04:20:03,233 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-03-25 04:20:03,234 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 180 transitions. [2021-03-25 04:20:03,234 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7058823529411765 [2021-03-25 04:20:03,234 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 180 transitions. [2021-03-25 04:20:03,234 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 180 transitions. [2021-03-25 04:20:03,234 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 04:20:03,234 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 180 transitions. [2021-03-25 04:20:03,235 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) [2021-03-25 04:20:03,236 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 85.0) internal successors, (340), 4 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) [2021-03-25 04:20:03,236 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 85.0) internal successors, (340), 4 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) [2021-03-25 04:20:03,236 INFO L185 Difference]: Start difference. First operand has 36 places, 27 transitions, 86 flow. Second operand 3 states and 180 transitions. [2021-03-25 04:20:03,236 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 36 places, 33 transitions, 140 flow [2021-03-25 04:20:03,237 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 36 places, 33 transitions, 128 flow, removed 6 selfloop flow, removed 0 redundant places. [2021-03-25 04:20:03,238 INFO L241 Difference]: Finished difference. Result has 37 places, 29 transitions, 109 flow [2021-03-25 04:20:03,238 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=85, PETRI_DIFFERENCE_MINUEND_FLOW=70, PETRI_DIFFERENCE_MINUEND_PLACES=34, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=25, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=20, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=109, PETRI_PLACES=37, PETRI_TRANSITIONS=29} [2021-03-25 04:20:03,238 INFO L343 CegarLoopForPetriNet]: 36 programPoint places, 1 predicate places. [2021-03-25 04:20:03,238 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 04:20:03,238 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 37 places, 29 transitions, 109 flow [2021-03-25 04:20:03,239 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 37 places, 29 transitions, 109 flow [2021-03-25 04:20:03,239 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 37 places, 29 transitions, 109 flow [2021-03-25 04:20:03,250 INFO L129 PetriNetUnfolder]: 91/184 cut-off events. [2021-03-25 04:20:03,250 INFO L130 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2021-03-25 04:20:03,251 INFO L84 FinitePrefix]: Finished finitePrefix Result has 364 conditions, 184 events. 91/184 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 42. Compared 861 event pairs, 58 based on Foata normal form. 0/163 useless extension candidates. Maximal degree in co-relation 343. Up to 157 conditions per place. [2021-03-25 04:20:03,253 INFO L142 LiptonReduction]: Number of co-enabled transitions 408 [2021-03-25 04:20:03,255 INFO L154 LiptonReduction]: Checked pairs total: 265 [2021-03-25 04:20:03,255 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 04:20:03,255 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 17 [2021-03-25 04:20:03,256 INFO L480 AbstractCegarLoop]: Abstraction has has 37 places, 29 transitions, 109 flow [2021-03-25 04:20:03,256 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 51.666666666666664) internal successors, (155), 3 states have internal predecessors, (155), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:20:03,256 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 04:20:03,256 INFO L263 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 04:20:03,257 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-03-25 04:20:03,257 INFO L428 AbstractCegarLoop]: === Iteration 2 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-25 04:20:03,257 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 04:20:03,257 INFO L82 PathProgramCache]: Analyzing trace with hash 2071808609, now seen corresponding path program 1 times [2021-03-25 04:20:03,257 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 04:20:03,257 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [673681987] [2021-03-25 04:20:03,257 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 04:20:03,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 04:20:03,274 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 04:20:03,274 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 04:20:03,274 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 04:20:03,275 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 04:20:03,277 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 04:20:03,277 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [673681987] [2021-03-25 04:20:03,277 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 04:20:03,277 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-03-25 04:20:03,277 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1051622935] [2021-03-25 04:20:03,278 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-03-25 04:20:03,278 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 04:20:03,278 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-03-25 04:20:03,278 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-25 04:20:03,279 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 57 out of 85 [2021-03-25 04:20:03,279 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 37 places, 29 transitions, 109 flow. Second operand has 3 states, 3 states have (on average 58.333333333333336) internal successors, (175), 3 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:20:03,279 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 04:20:03,279 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 57 of 85 [2021-03-25 04:20:03,279 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 04:20:03,335 INFO L129 PetriNetUnfolder]: 204/424 cut-off events. [2021-03-25 04:20:03,335 INFO L130 PetriNetUnfolder]: For 151/285 co-relation queries the response was YES. [2021-03-25 04:20:03,337 INFO L84 FinitePrefix]: Finished finitePrefix Result has 915 conditions, 424 events. 204/424 cut-off events. For 151/285 co-relation queries the response was YES. Maximal size of possible extension queue 40. Compared 2089 event pairs, 40 based on Foata normal form. 135/525 useless extension candidates. Maximal degree in co-relation 892. Up to 189 conditions per place. [2021-03-25 04:20:03,339 INFO L132 encePairwiseOnDemand]: 77/85 looper letters, 13 selfloop transitions, 4 changer transitions 0/33 dead transitions. [2021-03-25 04:20:03,340 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 35 places, 33 transitions, 143 flow [2021-03-25 04:20:03,340 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-25 04:20:03,340 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-03-25 04:20:03,341 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 192 transitions. [2021-03-25 04:20:03,341 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7529411764705882 [2021-03-25 04:20:03,341 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 192 transitions. [2021-03-25 04:20:03,341 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 192 transitions. [2021-03-25 04:20:03,341 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 04:20:03,341 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 192 transitions. [2021-03-25 04:20:03,342 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 64.0) internal successors, (192), 3 states have internal predecessors, (192), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:20:03,343 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 85.0) internal successors, (340), 4 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) [2021-03-25 04:20:03,343 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 85.0) internal successors, (340), 4 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) [2021-03-25 04:20:03,343 INFO L185 Difference]: Start difference. First operand has 37 places, 29 transitions, 109 flow. Second operand 3 states and 192 transitions. [2021-03-25 04:20:03,343 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 35 places, 33 transitions, 143 flow [2021-03-25 04:20:03,344 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 34 places, 33 transitions, 138 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-03-25 04:20:03,345 INFO L241 Difference]: Finished difference. Result has 35 places, 29 transitions, 116 flow [2021-03-25 04:20:03,345 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=85, PETRI_DIFFERENCE_MINUEND_FLOW=88, PETRI_DIFFERENCE_MINUEND_PLACES=32, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=25, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=21, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=116, PETRI_PLACES=35, PETRI_TRANSITIONS=29} [2021-03-25 04:20:03,346 INFO L343 CegarLoopForPetriNet]: 36 programPoint places, -1 predicate places. [2021-03-25 04:20:03,346 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 04:20:03,346 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 35 places, 29 transitions, 116 flow [2021-03-25 04:20:03,346 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 35 places, 29 transitions, 116 flow [2021-03-25 04:20:03,346 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 35 places, 29 transitions, 116 flow [2021-03-25 04:20:03,354 INFO L129 PetriNetUnfolder]: 51/130 cut-off events. [2021-03-25 04:20:03,354 INFO L130 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2021-03-25 04:20:03,354 INFO L84 FinitePrefix]: Finished finitePrefix Result has 260 conditions, 130 events. 51/130 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 446 event pairs, 15 based on Foata normal form. 0/113 useless extension candidates. Maximal degree in co-relation 239. Up to 75 conditions per place. [2021-03-25 04:20:03,356 INFO L142 LiptonReduction]: Number of co-enabled transitions 372 [2021-03-25 04:20:03,358 INFO L154 LiptonReduction]: Checked pairs total: 104 [2021-03-25 04:20:03,358 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 04:20:03,358 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 12 [2021-03-25 04:20:03,358 INFO L480 AbstractCegarLoop]: Abstraction has has 35 places, 29 transitions, 116 flow [2021-03-25 04:20:03,359 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 58.333333333333336) internal successors, (175), 3 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:20:03,359 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 04:20:03,359 INFO L263 CegarLoopForPetriNet]: trace histogram [5, 5, 4, 1, 1, 1, 1, 1, 1] [2021-03-25 04:20:03,359 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-03-25 04:20:03,359 INFO L428 AbstractCegarLoop]: === Iteration 3 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-25 04:20:03,359 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 04:20:03,360 INFO L82 PathProgramCache]: Analyzing trace with hash 38474362, now seen corresponding path program 1 times [2021-03-25 04:20:03,360 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 04:20:03,360 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1531916337] [2021-03-25 04:20:03,360 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 04:20:03,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-03-25 04:20:03,369 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-03-25 04:20:03,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-03-25 04:20:03,374 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-03-25 04:20:03,378 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-03-25 04:20:03,379 INFO L634 BasicCegarLoop]: Counterexample might be feasible [2021-03-25 04:20:03,379 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-03-25 04:20:03,379 WARN L342 ceAbstractionStarter]: 4 thread instances were not sufficient, I will increase this number and restart the analysis [2021-03-25 04:20:03,379 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 5 thread instances. [2021-03-25 04:20:03,390 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:20:03,390 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:20:03,390 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:20:03,390 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:20:03,390 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:20:03,390 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:20:03,390 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:20:03,390 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:20:03,391 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:20:03,391 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:20:03,391 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:20:03,391 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:20:03,391 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:20:03,391 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:20:03,391 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:20:03,391 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:20:03,391 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:20:03,391 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:20:03,391 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:20:03,391 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:20:03,392 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:20:03,392 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:20:03,392 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:20:03,392 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:20:03,392 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:20:03,392 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:20:03,392 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:20:03,392 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:20:03,392 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:20:03,392 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:20:03,392 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:20:03,392 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:20:03,393 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:20:03,393 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:20:03,393 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:20:03,393 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:20:03,393 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:20:03,393 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:20:03,393 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:20:03,393 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:20:03,393 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:20:03,393 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:20:03,393 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:20:03,393 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:20:03,394 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:20:03,394 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:20:03,394 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:20:03,394 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:20:03,394 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:20:03,394 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:20:03,394 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:20:03,394 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:20:03,394 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:20:03,394 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:20:03,394 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:20:03,394 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:20:03,395 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:20:03,395 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:20:03,395 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:20:03,395 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:20:03,395 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:20:03,395 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:20:03,395 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:20:03,395 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:20:03,399 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:20:03,399 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:20:03,399 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:20:03,399 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:20:03,400 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:20:03,400 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:20:03,400 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:20:03,401 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:20:03,402 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:20:03,402 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:20:03,402 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:20:03,402 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:20:03,403 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:20:03,403 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:20:03,403 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:20:03,403 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:20:03,404 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-03-25 04:20:03,404 INFO L253 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2021-03-25 04:20:03,405 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-03-25 04:20:03,405 INFO L377 AbstractCegarLoop]: Hoare is false [2021-03-25 04:20:03,405 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-03-25 04:20:03,405 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-03-25 04:20:03,405 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-03-25 04:20:03,405 INFO L381 AbstractCegarLoop]: Difference is false [2021-03-25 04:20:03,405 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-03-25 04:20:03,405 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-03-25 04:20:03,409 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 72 places, 62 transitions, 169 flow [2021-03-25 04:20:03,415 INFO L129 PetriNetUnfolder]: 6/106 cut-off events. [2021-03-25 04:20:03,415 INFO L130 PetriNetUnfolder]: For 30/30 co-relation queries the response was YES. [2021-03-25 04:20:03,416 INFO L84 FinitePrefix]: Finished finitePrefix Result has 137 conditions, 106 events. 6/106 cut-off events. For 30/30 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 231 event pairs, 0 based on Foata normal form. 0/89 useless extension candidates. Maximal degree in co-relation 102. Up to 12 conditions per place. [2021-03-25 04:20:03,416 INFO L82 GeneralOperation]: Start removeDead. Operand has 72 places, 62 transitions, 169 flow [2021-03-25 04:20:03,416 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 72 places, 62 transitions, 169 flow [2021-03-25 04:20:03,417 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 04:20:03,417 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 72 places, 62 transitions, 169 flow [2021-03-25 04:20:03,417 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 72 places, 62 transitions, 169 flow [2021-03-25 04:20:03,417 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 72 places, 62 transitions, 169 flow [2021-03-25 04:20:03,423 INFO L129 PetriNetUnfolder]: 6/106 cut-off events. [2021-03-25 04:20:03,423 INFO L130 PetriNetUnfolder]: For 30/30 co-relation queries the response was YES. [2021-03-25 04:20:03,424 INFO L84 FinitePrefix]: Finished finitePrefix Result has 137 conditions, 106 events. 6/106 cut-off events. For 30/30 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 251 event pairs, 0 based on Foata normal form. 0/89 useless extension candidates. Maximal degree in co-relation 102. Up to 12 conditions per place. [2021-03-25 04:20:03,425 INFO L142 LiptonReduction]: Number of co-enabled transitions 1820 [2021-03-25 04:20:04,690 INFO L154 LiptonReduction]: Checked pairs total: 2795 [2021-03-25 04:20:04,690 INFO L156 LiptonReduction]: Total number of compositions: 35 [2021-03-25 04:20:04,690 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 1273 [2021-03-25 04:20:04,692 INFO L129 PetriNetUnfolder]: 0/8 cut-off events. [2021-03-25 04:20:04,692 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-25 04:20:04,692 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 04:20:04,692 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2021-03-25 04:20:04,692 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]=== [2021-03-25 04:20:04,693 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 04:20:04,693 INFO L82 PathProgramCache]: Analyzing trace with hash 464619504, now seen corresponding path program 1 times [2021-03-25 04:20:04,693 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 04:20:04,693 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [813866279] [2021-03-25 04:20:04,693 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 04:20:04,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 04:20:04,704 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 04:20:04,704 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 04:20:04,707 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 04:20:04,707 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [813866279] [2021-03-25 04:20:04,707 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 04:20:04,707 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-03-25 04:20:04,707 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1405595912] [2021-03-25 04:20:04,707 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-03-25 04:20:04,707 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 04:20:04,708 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-03-25 04:20:04,708 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-25 04:20:04,708 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 58 out of 97 [2021-03-25 04:20:04,709 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 43 places, 32 transitions, 109 flow. Second operand has 3 states, 3 states have (on average 58.666666666666664) internal successors, (176), 3 states have internal predecessors, (176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:20:04,709 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 04:20:04,709 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 58 of 97 [2021-03-25 04:20:04,709 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 04:20:05,011 INFO L129 PetriNetUnfolder]: 1973/3105 cut-off events. [2021-03-25 04:20:05,011 INFO L130 PetriNetUnfolder]: For 30/30 co-relation queries the response was YES. [2021-03-25 04:20:05,019 INFO L84 FinitePrefix]: Finished finitePrefix Result has 5923 conditions, 3105 events. 1973/3105 cut-off events. For 30/30 co-relation queries the response was YES. Maximal size of possible extension queue 386. Compared 20919 event pairs, 1351 based on Foata normal form. 821/2922 useless extension candidates. Maximal degree in co-relation 5869. Up to 2706 conditions per place. [2021-03-25 04:20:05,039 INFO L132 encePairwiseOnDemand]: 85/97 looper letters, 20 selfloop transitions, 6 changer transitions 0/40 dead transitions. [2021-03-25 04:20:05,039 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 43 places, 40 transitions, 177 flow [2021-03-25 04:20:05,040 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-25 04:20:05,040 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-03-25 04:20:05,041 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 207 transitions. [2021-03-25 04:20:05,041 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.711340206185567 [2021-03-25 04:20:05,041 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 207 transitions. [2021-03-25 04:20:05,041 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 207 transitions. [2021-03-25 04:20:05,041 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 04:20:05,041 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 207 transitions. [2021-03-25 04:20:05,042 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 69.0) internal successors, (207), 3 states have internal predecessors, (207), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:20:05,043 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 97.0) internal successors, (388), 4 states have internal predecessors, (388), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:20:05,044 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 97.0) internal successors, (388), 4 states have internal predecessors, (388), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:20:05,044 INFO L185 Difference]: Start difference. First operand has 43 places, 32 transitions, 109 flow. Second operand 3 states and 207 transitions. [2021-03-25 04:20:05,044 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 43 places, 40 transitions, 177 flow [2021-03-25 04:20:05,046 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 43 places, 40 transitions, 157 flow, removed 10 selfloop flow, removed 0 redundant places. [2021-03-25 04:20:05,047 INFO L241 Difference]: Finished difference. Result has 44 places, 35 transitions, 133 flow [2021-03-25 04:20:05,047 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=97, PETRI_DIFFERENCE_MINUEND_FLOW=85, PETRI_DIFFERENCE_MINUEND_PLACES=41, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=30, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=24, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=133, PETRI_PLACES=44, PETRI_TRANSITIONS=35} [2021-03-25 04:20:05,047 INFO L343 CegarLoopForPetriNet]: 43 programPoint places, 1 predicate places. [2021-03-25 04:20:05,047 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 04:20:05,048 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 44 places, 35 transitions, 133 flow [2021-03-25 04:20:05,048 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 44 places, 35 transitions, 133 flow [2021-03-25 04:20:05,048 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 44 places, 35 transitions, 133 flow [2021-03-25 04:20:05,090 INFO L129 PetriNetUnfolder]: 444/689 cut-off events. [2021-03-25 04:20:05,090 INFO L130 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2021-03-25 04:20:05,092 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1373 conditions, 689 events. 444/689 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 127. Compared 3605 event pairs, 313 based on Foata normal form. 0/601 useless extension candidates. Maximal degree in co-relation 1351. Up to 656 conditions per place. [2021-03-25 04:20:05,099 INFO L142 LiptonReduction]: Number of co-enabled transitions 616 [2021-03-25 04:20:05,107 INFO L154 LiptonReduction]: Checked pairs total: 418 [2021-03-25 04:20:05,107 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 04:20:05,107 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 60 [2021-03-25 04:20:05,108 INFO L480 AbstractCegarLoop]: Abstraction has has 44 places, 35 transitions, 133 flow [2021-03-25 04:20:05,108 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 58.666666666666664) internal successors, (176), 3 states have internal predecessors, (176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:20:05,108 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 04:20:05,108 INFO L263 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 04:20:05,108 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-03-25 04:20:05,109 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]=== [2021-03-25 04:20:05,109 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 04:20:05,109 INFO L82 PathProgramCache]: Analyzing trace with hash -36848398, now seen corresponding path program 1 times [2021-03-25 04:20:05,109 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 04:20:05,110 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1811209283] [2021-03-25 04:20:05,110 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 04:20:05,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 04:20:05,145 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 04:20:05,145 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 04:20:05,146 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 04:20:05,146 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 04:20:05,149 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 04:20:05,149 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1811209283] [2021-03-25 04:20:05,149 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 04:20:05,149 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-03-25 04:20:05,149 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1478811947] [2021-03-25 04:20:05,149 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-03-25 04:20:05,149 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 04:20:05,150 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-03-25 04:20:05,150 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-25 04:20:05,150 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 64 out of 97 [2021-03-25 04:20:05,150 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 44 places, 35 transitions, 133 flow. Second operand has 3 states, 3 states have (on average 65.33333333333333) internal successors, (196), 3 states have internal predecessors, (196), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:20:05,151 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 04:20:05,151 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 64 of 97 [2021-03-25 04:20:05,151 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 04:20:05,326 INFO L129 PetriNetUnfolder]: 960/1722 cut-off events. [2021-03-25 04:20:05,326 INFO L130 PetriNetUnfolder]: For 879/2044 co-relation queries the response was YES. [2021-03-25 04:20:05,334 INFO L84 FinitePrefix]: Finished finitePrefix Result has 3657 conditions, 1722 events. 960/1722 cut-off events. For 879/2044 co-relation queries the response was YES. Maximal size of possible extension queue 141. Compared 10523 event pairs, 219 based on Foata normal form. 729/2312 useless extension candidates. Maximal degree in co-relation 3633. Up to 889 conditions per place. [2021-03-25 04:20:05,345 INFO L132 encePairwiseOnDemand]: 87/97 looper letters, 16 selfloop transitions, 5 changer transitions 0/40 dead transitions. [2021-03-25 04:20:05,346 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 41 places, 40 transitions, 175 flow [2021-03-25 04:20:05,346 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-25 04:20:05,346 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-03-25 04:20:05,346 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 218 transitions. [2021-03-25 04:20:05,347 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7491408934707904 [2021-03-25 04:20:05,347 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 218 transitions. [2021-03-25 04:20:05,347 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 218 transitions. [2021-03-25 04:20:05,347 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 04:20:05,347 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 218 transitions. [2021-03-25 04:20:05,348 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 72.66666666666667) internal successors, (218), 3 states have internal predecessors, (218), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:20:05,348 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 97.0) internal successors, (388), 4 states have internal predecessors, (388), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:20:05,348 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 97.0) internal successors, (388), 4 states have internal predecessors, (388), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:20:05,349 INFO L185 Difference]: Start difference. First operand has 44 places, 35 transitions, 133 flow. Second operand 3 states and 218 transitions. [2021-03-25 04:20:05,349 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 41 places, 40 transitions, 175 flow [2021-03-25 04:20:05,351 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 40 places, 40 transitions, 169 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-03-25 04:20:05,352 INFO L241 Difference]: Finished difference. Result has 41 places, 35 transitions, 142 flow [2021-03-25 04:20:05,352 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=97, PETRI_DIFFERENCE_MINUEND_FLOW=107, PETRI_DIFFERENCE_MINUEND_PLACES=38, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=30, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=25, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=142, PETRI_PLACES=41, PETRI_TRANSITIONS=35} [2021-03-25 04:20:05,352 INFO L343 CegarLoopForPetriNet]: 43 programPoint places, -2 predicate places. [2021-03-25 04:20:05,352 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 04:20:05,352 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 41 places, 35 transitions, 142 flow [2021-03-25 04:20:05,352 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 41 places, 35 transitions, 142 flow [2021-03-25 04:20:05,353 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 41 places, 35 transitions, 142 flow [2021-03-25 04:20:05,381 INFO L129 PetriNetUnfolder]: 191/372 cut-off events. [2021-03-25 04:20:05,381 INFO L130 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2021-03-25 04:20:05,383 INFO L84 FinitePrefix]: Finished finitePrefix Result has 744 conditions, 372 events. 191/372 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 35. Compared 1659 event pairs, 75 based on Foata normal form. 0/300 useless extension candidates. Maximal degree in co-relation 722. Up to 264 conditions per place. [2021-03-25 04:20:05,387 INFO L142 LiptonReduction]: Number of co-enabled transitions 556 [2021-03-25 04:20:05,390 INFO L154 LiptonReduction]: Checked pairs total: 158 [2021-03-25 04:20:05,391 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 04:20:05,391 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 39 [2021-03-25 04:20:05,391 INFO L480 AbstractCegarLoop]: Abstraction has has 41 places, 35 transitions, 142 flow [2021-03-25 04:20:05,391 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 65.33333333333333) internal successors, (196), 3 states have internal predecessors, (196), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:20:05,391 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 04:20:05,392 INFO L263 CegarLoopForPetriNet]: trace histogram [6, 6, 5, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 04:20:05,392 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-03-25 04:20:05,392 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]=== [2021-03-25 04:20:05,392 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 04:20:05,392 INFO L82 PathProgramCache]: Analyzing trace with hash -1052753288, now seen corresponding path program 1 times [2021-03-25 04:20:05,392 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 04:20:05,393 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1715408696] [2021-03-25 04:20:05,393 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 04:20:05,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-03-25 04:20:05,408 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-03-25 04:20:05,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-03-25 04:20:05,421 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-03-25 04:20:05,434 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-03-25 04:20:05,434 INFO L634 BasicCegarLoop]: Counterexample might be feasible [2021-03-25 04:20:05,434 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-03-25 04:20:05,434 WARN L342 ceAbstractionStarter]: 5 thread instances were not sufficient, I will increase this number and restart the analysis [2021-03-25 04:20:05,435 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 6 thread instances. [2021-03-25 04:20:05,446 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread6of6ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:20:05,447 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread6of6ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:20:05,447 WARN L313 ript$VariableManager]: TermVariabe thr1Thread6of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:20:05,447 WARN L313 ript$VariableManager]: TermVariabe thr1Thread6of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:20:05,447 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread6of6ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:20:05,447 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread6of6ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:20:05,447 WARN L313 ript$VariableManager]: TermVariabe thr1Thread6of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:20:05,447 WARN L313 ript$VariableManager]: TermVariabe thr1Thread6of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:20:05,447 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread6of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:20:05,447 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread6of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:20:05,448 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread6of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:20:05,448 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread6of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:20:05,448 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of6ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:20:05,448 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of6ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:20:05,448 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:20:05,448 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:20:05,448 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of6ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:20:05,448 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of6ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:20:05,448 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:20:05,448 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:20:05,449 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:20:05,449 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:20:05,449 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:20:05,449 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:20:05,449 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of6ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:20:05,449 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of6ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:20:05,449 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:20:05,449 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:20:05,450 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of6ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:20:05,450 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of6ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:20:05,450 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:20:05,450 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:20:05,450 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:20:05,450 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:20:05,450 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:20:05,450 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:20:05,450 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of6ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:20:05,450 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of6ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:20:05,450 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:20:05,450 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:20:05,451 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of6ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:20:05,451 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of6ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:20:05,451 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:20:05,451 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:20:05,454 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:20:05,455 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:20:05,455 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:20:05,455 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:20:05,456 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of6ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:20:05,456 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of6ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:20:05,456 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:20:05,456 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:20:05,456 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of6ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:20:05,456 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of6ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:20:05,456 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:20:05,456 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:20:05,457 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:20:05,457 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:20:05,457 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:20:05,457 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:20:05,457 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of6ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:20:05,457 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of6ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:20:05,457 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:20:05,457 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:20:05,457 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of6ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:20:05,457 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of6ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:20:05,457 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:20:05,457 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:20:05,457 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:20:05,458 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:20:05,458 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:20:05,458 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:20:05,458 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:20:05,458 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:20:05,458 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:20:05,458 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:20:05,459 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:20:05,460 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:20:05,460 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:20:05,460 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:20:05,460 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:20:05,461 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:20:05,461 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:20:05,461 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:20:05,461 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:20:05,462 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:20:05,462 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:20:05,462 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:20:05,463 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:20:05,463 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:20:05,463 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:20:05,463 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:20:05,463 WARN L313 ript$VariableManager]: TermVariabe thr1Thread6of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:20:05,464 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread6of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:20:05,464 WARN L313 ript$VariableManager]: TermVariabe thr1Thread6of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:20:05,464 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread6of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:20:05,464 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-03-25 04:20:05,465 INFO L253 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2021-03-25 04:20:05,467 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-03-25 04:20:05,467 INFO L377 AbstractCegarLoop]: Hoare is false [2021-03-25 04:20:05,467 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-03-25 04:20:05,467 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-03-25 04:20:05,467 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-03-25 04:20:05,468 INFO L381 AbstractCegarLoop]: Difference is false [2021-03-25 04:20:05,468 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-03-25 04:20:05,468 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-03-25 04:20:05,471 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 82 places, 70 transitions, 200 flow [2021-03-25 04:20:05,481 INFO L129 PetriNetUnfolder]: 7/123 cut-off events. [2021-03-25 04:20:05,481 INFO L130 PetriNetUnfolder]: For 50/50 co-relation queries the response was YES. [2021-03-25 04:20:05,481 INFO L84 FinitePrefix]: Finished finitePrefix Result has 163 conditions, 123 events. 7/123 cut-off events. For 50/50 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 266 event pairs, 0 based on Foata normal form. 0/103 useless extension candidates. Maximal degree in co-relation 126. Up to 14 conditions per place. [2021-03-25 04:20:05,481 INFO L82 GeneralOperation]: Start removeDead. Operand has 82 places, 70 transitions, 200 flow [2021-03-25 04:20:05,482 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 82 places, 70 transitions, 200 flow [2021-03-25 04:20:05,482 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 04:20:05,483 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 82 places, 70 transitions, 200 flow [2021-03-25 04:20:05,483 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 82 places, 70 transitions, 200 flow [2021-03-25 04:20:05,483 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 82 places, 70 transitions, 200 flow [2021-03-25 04:20:05,492 INFO L129 PetriNetUnfolder]: 7/123 cut-off events. [2021-03-25 04:20:05,493 INFO L130 PetriNetUnfolder]: For 50/50 co-relation queries the response was YES. [2021-03-25 04:20:05,493 INFO L84 FinitePrefix]: Finished finitePrefix Result has 163 conditions, 123 events. 7/123 cut-off events. For 50/50 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 286 event pairs, 0 based on Foata normal form. 0/103 useless extension candidates. Maximal degree in co-relation 126. Up to 14 conditions per place. [2021-03-25 04:20:05,495 INFO L142 LiptonReduction]: Number of co-enabled transitions 2520 [2021-03-25 04:20:06,851 INFO L154 LiptonReduction]: Checked pairs total: 4071 [2021-03-25 04:20:06,852 INFO L156 LiptonReduction]: Total number of compositions: 39 [2021-03-25 04:20:06,852 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 1370 [2021-03-25 04:20:06,853 INFO L129 PetriNetUnfolder]: 0/7 cut-off events. [2021-03-25 04:20:06,854 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-25 04:20:06,854 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 04:20:06,854 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2021-03-25 04:20:06,854 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]=== [2021-03-25 04:20:06,854 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 04:20:06,854 INFO L82 PathProgramCache]: Analyzing trace with hash 575904024, now seen corresponding path program 1 times [2021-03-25 04:20:06,854 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 04:20:06,854 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1835363789] [2021-03-25 04:20:06,854 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 04:20:06,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 04:20:06,865 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 04:20:06,865 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 04:20:06,867 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 04:20:06,868 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1835363789] [2021-03-25 04:20:06,868 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 04:20:06,868 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-03-25 04:20:06,868 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [854700070] [2021-03-25 04:20:06,868 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-03-25 04:20:06,868 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 04:20:06,868 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-03-25 04:20:06,869 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-25 04:20:06,869 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 63 out of 109 [2021-03-25 04:20:06,869 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 50 places, 37 transitions, 134 flow. Second operand has 3 states, 3 states have (on average 63.666666666666664) internal successors, (191), 3 states have internal predecessors, (191), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:20:06,869 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 04:20:06,869 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 63 of 109 [2021-03-25 04:20:06,869 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 04:20:08,541 INFO L129 PetriNetUnfolder]: 11012/15742 cut-off events. [2021-03-25 04:20:08,541 INFO L130 PetriNetUnfolder]: For 50/50 co-relation queries the response was YES. [2021-03-25 04:20:08,586 INFO L84 FinitePrefix]: Finished finitePrefix Result has 30226 conditions, 15742 events. 11012/15742 cut-off events. For 50/50 co-relation queries the response was YES. Maximal size of possible extension queue 1611. Compared 112271 event pairs, 8141 based on Foata normal form. 3442/14139 useless extension candidates. Maximal degree in co-relation 30159. Up to 14251 conditions per place. [2021-03-25 04:20:08,692 INFO L132 encePairwiseOnDemand]: 95/109 looper letters, 24 selfloop transitions, 7 changer transitions 0/47 dead transitions. [2021-03-25 04:20:08,693 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 50 places, 47 transitions, 216 flow [2021-03-25 04:20:08,693 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-25 04:20:08,693 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-03-25 04:20:08,694 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 228 transitions. [2021-03-25 04:20:08,694 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6972477064220184 [2021-03-25 04:20:08,694 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 228 transitions. [2021-03-25 04:20:08,694 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 228 transitions. [2021-03-25 04:20:08,694 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 04:20:08,694 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 228 transitions. [2021-03-25 04:20:08,695 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) [2021-03-25 04:20:08,696 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 109.0) internal successors, (436), 4 states have internal predecessors, (436), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:20:08,696 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 109.0) internal successors, (436), 4 states have internal predecessors, (436), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:20:08,696 INFO L185 Difference]: Start difference. First operand has 50 places, 37 transitions, 134 flow. Second operand 3 states and 228 transitions. [2021-03-25 04:20:08,696 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 50 places, 47 transitions, 216 flow [2021-03-25 04:20:08,698 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 50 places, 47 transitions, 186 flow, removed 15 selfloop flow, removed 0 redundant places. [2021-03-25 04:20:08,699 INFO L241 Difference]: Finished difference. Result has 51 places, 41 transitions, 157 flow [2021-03-25 04:20:08,699 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=109, PETRI_DIFFERENCE_MINUEND_FLOW=100, PETRI_DIFFERENCE_MINUEND_PLACES=48, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=35, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=28, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=157, PETRI_PLACES=51, PETRI_TRANSITIONS=41} [2021-03-25 04:20:08,699 INFO L343 CegarLoopForPetriNet]: 50 programPoint places, 1 predicate places. [2021-03-25 04:20:08,699 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 04:20:08,699 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 51 places, 41 transitions, 157 flow [2021-03-25 04:20:08,699 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 51 places, 41 transitions, 157 flow [2021-03-25 04:20:08,700 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 51 places, 41 transitions, 157 flow [2021-03-25 04:20:08,913 INFO L129 PetriNetUnfolder]: 1873/2578 cut-off events. [2021-03-25 04:20:08,914 INFO L130 PetriNetUnfolder]: For 5/5 co-relation queries the response was YES. [2021-03-25 04:20:08,921 INFO L84 FinitePrefix]: Finished finitePrefix Result has 5150 conditions, 2578 events. 1873/2578 cut-off events. For 5/5 co-relation queries the response was YES. Maximal size of possible extension queue 381. Compared 15438 event pairs, 1400 based on Foata normal form. 0/2326 useless extension candidates. Maximal degree in co-relation 5127. Up to 2539 conditions per place. [2021-03-25 04:20:08,954 INFO L142 LiptonReduction]: Number of co-enabled transitions 866 [2021-03-25 04:20:09,035 INFO L154 LiptonReduction]: Checked pairs total: 596 [2021-03-25 04:20:09,035 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 04:20:09,035 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 336 [2021-03-25 04:20:09,037 INFO L480 AbstractCegarLoop]: Abstraction has has 51 places, 41 transitions, 157 flow [2021-03-25 04:20:09,038 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 63.666666666666664) internal successors, (191), 3 states have internal predecessors, (191), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:20:09,038 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 04:20:09,038 INFO L263 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 04:20:09,038 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-03-25 04:20:09,038 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]=== [2021-03-25 04:20:09,038 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 04:20:09,038 INFO L82 PathProgramCache]: Analyzing trace with hash 382182391, now seen corresponding path program 1 times [2021-03-25 04:20:09,039 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 04:20:09,039 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1789151634] [2021-03-25 04:20:09,039 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 04:20:09,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 04:20:09,066 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 04:20:09,067 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 04:20:09,067 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 04:20:09,067 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 04:20:09,069 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 04:20:09,070 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1789151634] [2021-03-25 04:20:09,070 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 04:20:09,070 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-03-25 04:20:09,070 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [633302912] [2021-03-25 04:20:09,071 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-03-25 04:20:09,071 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 04:20:09,071 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-03-25 04:20:09,071 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-25 04:20:09,072 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 71 out of 109 [2021-03-25 04:20:09,072 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 51 places, 41 transitions, 157 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) [2021-03-25 04:20:09,072 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 04:20:09,072 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 71 of 109 [2021-03-25 04:20:09,072 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 04:20:09,641 INFO L129 PetriNetUnfolder]: 4252/7024 cut-off events. [2021-03-25 04:20:09,641 INFO L130 PetriNetUnfolder]: For 4691/13930 co-relation queries the response was YES. [2021-03-25 04:20:09,677 INFO L84 FinitePrefix]: Finished finitePrefix Result has 14715 conditions, 7024 events. 4252/7024 cut-off events. For 4691/13930 co-relation queries the response was YES. Maximal size of possible extension queue 526. Compared 50287 event pairs, 1162 based on Foata normal form. 3614/10039 useless extension candidates. Maximal degree in co-relation 14690. Up to 4081 conditions per place. [2021-03-25 04:20:09,714 INFO L132 encePairwiseOnDemand]: 97/109 looper letters, 19 selfloop transitions, 6 changer transitions 0/47 dead transitions. [2021-03-25 04:20:09,714 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 47 places, 47 transitions, 207 flow [2021-03-25 04:20:09,714 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-25 04:20:09,714 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-03-25 04:20:09,715 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 244 transitions. [2021-03-25 04:20:09,715 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.746177370030581 [2021-03-25 04:20:09,715 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 244 transitions. [2021-03-25 04:20:09,715 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 244 transitions. [2021-03-25 04:20:09,716 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 04:20:09,716 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 244 transitions. [2021-03-25 04:20:09,716 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 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) [2021-03-25 04:20:09,717 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 109.0) internal successors, (436), 4 states have internal predecessors, (436), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:20:09,717 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 109.0) internal successors, (436), 4 states have internal predecessors, (436), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:20:09,717 INFO L185 Difference]: Start difference. First operand has 51 places, 41 transitions, 157 flow. Second operand 3 states and 244 transitions. [2021-03-25 04:20:09,717 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 47 places, 47 transitions, 207 flow [2021-03-25 04:20:09,719 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 46 places, 47 transitions, 200 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-03-25 04:20:09,722 INFO L241 Difference]: Finished difference. Result has 47 places, 41 transitions, 168 flow [2021-03-25 04:20:09,722 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=109, PETRI_DIFFERENCE_MINUEND_FLOW=126, PETRI_DIFFERENCE_MINUEND_PLACES=44, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=35, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=29, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=168, PETRI_PLACES=47, PETRI_TRANSITIONS=41} [2021-03-25 04:20:09,722 INFO L343 CegarLoopForPetriNet]: 50 programPoint places, -3 predicate places. [2021-03-25 04:20:09,722 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 04:20:09,723 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 47 places, 41 transitions, 168 flow [2021-03-25 04:20:09,724 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 47 places, 41 transitions, 168 flow [2021-03-25 04:20:09,724 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 47 places, 41 transitions, 168 flow [2021-03-25 04:20:09,781 INFO L129 PetriNetUnfolder]: 676/1137 cut-off events. [2021-03-25 04:20:09,782 INFO L130 PetriNetUnfolder]: For 5/5 co-relation queries the response was YES. [2021-03-25 04:20:09,788 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2274 conditions, 1137 events. 676/1137 cut-off events. For 5/5 co-relation queries the response was YES. Maximal size of possible extension queue 107. Compared 6383 event pairs, 318 based on Foata normal form. 0/947 useless extension candidates. Maximal degree in co-relation 2251. Up to 912 conditions per place. [2021-03-25 04:20:09,800 INFO L142 LiptonReduction]: Number of co-enabled transitions 776 [2021-03-25 04:20:09,811 INFO L154 LiptonReduction]: Checked pairs total: 223 [2021-03-25 04:20:09,811 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 04:20:09,811 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 89 [2021-03-25 04:20:09,814 INFO L480 AbstractCegarLoop]: Abstraction has has 47 places, 41 transitions, 168 flow [2021-03-25 04:20:09,814 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) [2021-03-25 04:20:09,814 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 04:20:09,815 INFO L263 CegarLoopForPetriNet]: trace histogram [7, 7, 6, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 04:20:09,815 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2021-03-25 04:20:09,815 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]=== [2021-03-25 04:20:09,815 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 04:20:09,815 INFO L82 PathProgramCache]: Analyzing trace with hash 1665707909, now seen corresponding path program 1 times [2021-03-25 04:20:09,817 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 04:20:09,817 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [162027102] [2021-03-25 04:20:09,817 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 04:20:09,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-03-25 04:20:09,832 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-03-25 04:20:09,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-03-25 04:20:09,847 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-03-25 04:20:09,855 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-03-25 04:20:09,856 INFO L634 BasicCegarLoop]: Counterexample might be feasible [2021-03-25 04:20:09,857 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2021-03-25 04:20:09,857 WARN L342 ceAbstractionStarter]: 6 thread instances were not sufficient, I will increase this number and restart the analysis [2021-03-25 04:20:09,857 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 7 thread instances. [2021-03-25 04:20:09,871 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of7ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:20:09,871 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of7ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:20:09,871 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of7ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:20:09,871 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of7ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:20:09,871 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of7ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:20:09,871 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of7ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:20:09,871 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of7ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:20:09,871 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of7ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:20:09,872 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of7ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:20:09,872 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of7ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:20:09,872 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of7ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:20:09,872 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of7ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:20:09,872 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread6of7ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:20:09,872 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread6of7ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:20:09,872 WARN L313 ript$VariableManager]: TermVariabe thr1Thread6of7ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:20:09,872 WARN L313 ript$VariableManager]: TermVariabe thr1Thread6of7ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:20:09,873 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread6of7ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:20:09,873 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread6of7ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:20:09,873 WARN L313 ript$VariableManager]: TermVariabe thr1Thread6of7ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:20:09,873 WARN L313 ript$VariableManager]: TermVariabe thr1Thread6of7ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:20:09,873 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread6of7ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:20:09,873 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread6of7ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:20:09,873 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread6of7ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:20:09,873 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread6of7ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:20:09,873 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of7ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:20:09,873 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of7ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:20:09,873 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of7ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:20:09,873 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of7ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:20:09,874 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of7ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:20:09,874 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of7ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:20:09,874 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of7ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:20:09,874 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of7ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:20:09,874 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of7ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:20:09,874 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of7ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:20:09,874 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of7ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:20:09,874 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of7ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:20:09,874 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of7ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:20:09,874 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of7ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:20:09,874 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of7ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:20:09,875 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of7ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:20:09,875 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of7ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:20:09,875 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of7ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:20:09,875 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of7ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:20:09,875 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of7ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:20:09,875 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of7ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:20:09,875 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of7ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:20:09,875 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of7ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:20:09,875 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of7ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:20:09,875 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of7ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:20:09,875 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of7ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:20:09,876 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of7ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:20:09,876 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of7ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:20:09,876 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of7ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:20:09,876 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of7ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:20:09,876 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of7ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:20:09,876 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of7ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:20:09,876 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of7ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:20:09,876 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of7ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:20:09,876 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of7ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:20:09,876 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of7ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:20:09,876 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of7ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:20:09,876 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of7ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:20:09,877 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of7ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:20:09,877 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of7ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:20:09,877 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of7ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:20:09,877 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of7ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:20:09,877 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of7ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:20:09,877 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of7ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:20:09,877 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of7ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:20:09,877 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of7ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:20:09,877 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of7ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:20:09,877 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of7ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:20:09,878 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread7of7ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:20:09,878 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread7of7ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:20:09,878 WARN L313 ript$VariableManager]: TermVariabe thr1Thread7of7ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:20:09,878 WARN L313 ript$VariableManager]: TermVariabe thr1Thread7of7ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:20:09,878 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread7of7ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:20:09,878 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread7of7ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:20:09,878 WARN L313 ript$VariableManager]: TermVariabe thr1Thread7of7ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:20:09,878 WARN L313 ript$VariableManager]: TermVariabe thr1Thread7of7ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:20:09,878 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread7of7ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:20:09,879 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread7of7ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:20:09,879 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread7of7ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:20:09,879 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread7of7ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:20:09,879 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of7ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:20:09,879 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of7ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:20:09,879 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of7ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:20:09,879 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of7ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:20:09,880 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of7ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:20:09,881 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of7ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:20:09,881 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of7ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:20:09,881 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of7ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:20:09,882 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of7ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:20:09,882 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of7ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:20:09,882 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of7ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:20:09,882 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of7ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:20:09,883 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of7ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:20:09,883 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of7ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:20:09,883 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of7ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:20:09,883 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of7ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:20:09,884 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of7ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:20:09,884 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of7ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:20:09,884 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of7ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:20:09,884 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of7ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:20:09,885 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread6of7ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:20:09,885 WARN L313 ript$VariableManager]: TermVariabe thr1Thread6of7ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:20:09,885 WARN L313 ript$VariableManager]: TermVariabe thr1Thread6of7ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:20:09,886 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread6of7ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:20:09,886 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread7of7ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:20:09,886 WARN L313 ript$VariableManager]: TermVariabe thr1Thread7of7ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:20:09,886 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread7of7ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:20:09,886 WARN L313 ript$VariableManager]: TermVariabe thr1Thread7of7ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:20:09,887 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-03-25 04:20:09,887 INFO L253 AbstractCegarLoop]: Starting to check reachability of 9 error locations. [2021-03-25 04:20:09,888 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-03-25 04:20:09,888 INFO L377 AbstractCegarLoop]: Hoare is false [2021-03-25 04:20:09,888 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-03-25 04:20:09,888 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-03-25 04:20:09,888 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-03-25 04:20:09,888 INFO L381 AbstractCegarLoop]: Difference is false [2021-03-25 04:20:09,888 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-03-25 04:20:09,888 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-03-25 04:20:09,889 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 92 places, 78 transitions, 233 flow [2021-03-25 04:20:09,897 INFO L129 PetriNetUnfolder]: 8/140 cut-off events. [2021-03-25 04:20:09,897 INFO L130 PetriNetUnfolder]: For 77/77 co-relation queries the response was YES. [2021-03-25 04:20:09,898 INFO L84 FinitePrefix]: Finished finitePrefix Result has 190 conditions, 140 events. 8/140 cut-off events. For 77/77 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 324 event pairs, 0 based on Foata normal form. 0/117 useless extension candidates. Maximal degree in co-relation 152. Up to 16 conditions per place. [2021-03-25 04:20:09,898 INFO L82 GeneralOperation]: Start removeDead. Operand has 92 places, 78 transitions, 233 flow [2021-03-25 04:20:09,899 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 92 places, 78 transitions, 233 flow [2021-03-25 04:20:09,899 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 04:20:09,899 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 92 places, 78 transitions, 233 flow [2021-03-25 04:20:09,899 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 92 places, 78 transitions, 233 flow [2021-03-25 04:20:09,900 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 92 places, 78 transitions, 233 flow [2021-03-25 04:20:09,908 INFO L129 PetriNetUnfolder]: 8/140 cut-off events. [2021-03-25 04:20:09,908 INFO L130 PetriNetUnfolder]: For 77/77 co-relation queries the response was YES. [2021-03-25 04:20:09,909 INFO L84 FinitePrefix]: Finished finitePrefix Result has 190 conditions, 140 events. 8/140 cut-off events. For 77/77 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 345 event pairs, 0 based on Foata normal form. 0/117 useless extension candidates. Maximal degree in co-relation 152. Up to 16 conditions per place. [2021-03-25 04:20:09,911 INFO L142 LiptonReduction]: Number of co-enabled transitions 3332 [2021-03-25 04:20:11,268 INFO L154 LiptonReduction]: Checked pairs total: 5083 [2021-03-25 04:20:11,268 INFO L156 LiptonReduction]: Total number of compositions: 43 [2021-03-25 04:20:11,268 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 1369 [2021-03-25 04:20:11,270 INFO L129 PetriNetUnfolder]: 0/6 cut-off events. [2021-03-25 04:20:11,270 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-25 04:20:11,270 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 04:20:11,270 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2021-03-25 04:20:11,270 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]=== [2021-03-25 04:20:11,270 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 04:20:11,270 INFO L82 PathProgramCache]: Analyzing trace with hash 698640187, now seen corresponding path program 1 times [2021-03-25 04:20:11,270 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 04:20:11,270 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1666902232] [2021-03-25 04:20:11,270 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 04:20:11,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 04:20:11,282 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 04:20:11,282 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 04:20:11,285 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 04:20:11,285 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1666902232] [2021-03-25 04:20:11,285 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 04:20:11,285 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-03-25 04:20:11,285 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [968437484] [2021-03-25 04:20:11,285 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-03-25 04:20:11,285 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 04:20:11,286 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-03-25 04:20:11,286 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-25 04:20:11,286 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 68 out of 121 [2021-03-25 04:20:11,287 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 57 places, 42 transitions, 161 flow. Second operand has 3 states, 3 states have (on average 68.66666666666667) internal successors, (206), 3 states have internal predecessors, (206), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:20:11,287 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 04:20:11,287 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 68 of 121 [2021-03-25 04:20:11,287 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 04:20:18,319 INFO L129 PetriNetUnfolder]: 57279/77011 cut-off events. [2021-03-25 04:20:18,319 INFO L130 PetriNetUnfolder]: For 77/77 co-relation queries the response was YES. [2021-03-25 04:20:18,722 INFO L84 FinitePrefix]: Finished finitePrefix Result has 148666 conditions, 77011 events. 57279/77011 cut-off events. For 77/77 co-relation queries the response was YES. Maximal size of possible extension queue 6498. Compared 569028 event pairs, 44383 based on Foata normal form. 14338/66762 useless extension candidates. Maximal degree in co-relation 148585. Up to 71156 conditions per place. [2021-03-25 04:20:19,380 INFO L132 encePairwiseOnDemand]: 105/121 looper letters, 28 selfloop transitions, 8 changer transitions 0/54 dead transitions. [2021-03-25 04:20:19,380 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 57 places, 54 transitions, 257 flow [2021-03-25 04:20:19,380 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-25 04:20:19,380 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-03-25 04:20:19,382 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 249 transitions. [2021-03-25 04:20:19,382 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6859504132231405 [2021-03-25 04:20:19,383 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 249 transitions. [2021-03-25 04:20:19,383 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 249 transitions. [2021-03-25 04:20:19,383 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 04:20:19,383 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 249 transitions. [2021-03-25 04:20:19,383 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 83.0) internal successors, (249), 3 states have internal predecessors, (249), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:20:19,384 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 121.0) internal successors, (484), 4 states have internal predecessors, (484), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:20:19,384 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 121.0) internal successors, (484), 4 states have internal predecessors, (484), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:20:19,384 INFO L185 Difference]: Start difference. First operand has 57 places, 42 transitions, 161 flow. Second operand 3 states and 249 transitions. [2021-03-25 04:20:19,384 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 57 places, 54 transitions, 257 flow [2021-03-25 04:20:19,385 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 57 places, 54 transitions, 215 flow, removed 21 selfloop flow, removed 0 redundant places. [2021-03-25 04:20:19,387 INFO L241 Difference]: Finished difference. Result has 58 places, 47 transitions, 181 flow [2021-03-25 04:20:19,387 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=121, PETRI_DIFFERENCE_MINUEND_FLOW=115, PETRI_DIFFERENCE_MINUEND_PLACES=55, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=40, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=32, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=181, PETRI_PLACES=58, PETRI_TRANSITIONS=47} [2021-03-25 04:20:19,387 INFO L343 CegarLoopForPetriNet]: 57 programPoint places, 1 predicate places. [2021-03-25 04:20:19,387 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 04:20:19,388 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 58 places, 47 transitions, 181 flow [2021-03-25 04:20:19,388 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 58 places, 47 transitions, 181 flow [2021-03-25 04:20:19,388 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 58 places, 47 transitions, 181 flow [2021-03-25 04:20:19,956 INFO L129 PetriNetUnfolder]: 7258/9363 cut-off events. [2021-03-25 04:20:19,956 INFO L130 PetriNetUnfolder]: For 6/6 co-relation queries the response was YES. [2021-03-25 04:20:19,973 INFO L84 FinitePrefix]: Finished finitePrefix Result has 18719 conditions, 9363 events. 7258/9363 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 1125. Compared 55095 event pairs, 5647 based on Foata normal form. 0/8804 useless extension candidates. Maximal degree in co-relation 18695. Up to 9318 conditions per place. [2021-03-25 04:20:20,050 INFO L142 LiptonReduction]: Number of co-enabled transitions 1158 [2021-03-25 04:20:20,260 INFO L154 LiptonReduction]: Checked pairs total: 815 [2021-03-25 04:20:20,260 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 04:20:20,260 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 873 [2021-03-25 04:20:20,260 INFO L480 AbstractCegarLoop]: Abstraction has has 58 places, 47 transitions, 181 flow [2021-03-25 04:20:20,260 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 68.66666666666667) internal successors, (206), 3 states have internal predecessors, (206), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:20:20,260 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 04:20:20,261 INFO L263 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 04:20:20,261 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2021-03-25 04:20:20,261 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]=== [2021-03-25 04:20:20,261 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 04:20:20,261 INFO L82 PathProgramCache]: Analyzing trace with hash 875791525, now seen corresponding path program 1 times [2021-03-25 04:20:20,261 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 04:20:20,261 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [238410506] [2021-03-25 04:20:20,261 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 04:20:20,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 04:20:20,274 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 04:20:20,274 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 04:20:20,274 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 04:20:20,275 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 04:20:20,277 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 04:20:20,277 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [238410506] [2021-03-25 04:20:20,277 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 04:20:20,277 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-03-25 04:20:20,277 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1803831686] [2021-03-25 04:20:20,277 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-03-25 04:20:20,277 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 04:20:20,278 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-03-25 04:20:20,278 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-25 04:20:20,278 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 78 out of 121 [2021-03-25 04:20:20,278 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 58 places, 47 transitions, 181 flow. Second operand has 3 states, 3 states have (on average 79.33333333333333) internal successors, (238), 3 states have internal predecessors, (238), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:20:20,278 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 04:20:20,279 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 78 of 121 [2021-03-25 04:20:20,279 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 04:20:22,365 INFO L129 PetriNetUnfolder]: 18292/28638 cut-off events. [2021-03-25 04:20:22,365 INFO L130 PetriNetUnfolder]: For 23575/92911 co-relation queries the response was YES. [2021-03-25 04:20:22,463 INFO L84 FinitePrefix]: Finished finitePrefix Result has 59337 conditions, 28638 events. 18292/28638 cut-off events. For 23575/92911 co-relation queries the response was YES. Maximal size of possible extension queue 2023. Compared 232575 event pairs, 5957 based on Foata normal form. 16924/42925 useless extension candidates. Maximal degree in co-relation 59311. Up to 18401 conditions per place. [2021-03-25 04:20:22,607 INFO L132 encePairwiseOnDemand]: 107/121 looper letters, 22 selfloop transitions, 7 changer transitions 0/54 dead transitions. [2021-03-25 04:20:22,607 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 53 places, 54 transitions, 239 flow [2021-03-25 04:20:22,608 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-25 04:20:22,608 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-03-25 04:20:22,609 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 270 transitions. [2021-03-25 04:20:22,609 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.743801652892562 [2021-03-25 04:20:22,609 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 270 transitions. [2021-03-25 04:20:22,609 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 270 transitions. [2021-03-25 04:20:22,609 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 04:20:22,609 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 270 transitions. [2021-03-25 04:20:22,610 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 90.0) internal successors, (270), 3 states have internal predecessors, (270), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:20:22,610 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 121.0) internal successors, (484), 4 states have internal predecessors, (484), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:20:22,611 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 121.0) internal successors, (484), 4 states have internal predecessors, (484), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:20:22,611 INFO L185 Difference]: Start difference. First operand has 58 places, 47 transitions, 181 flow. Second operand 3 states and 270 transitions. [2021-03-25 04:20:22,611 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 53 places, 54 transitions, 239 flow [2021-03-25 04:20:22,613 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 52 places, 54 transitions, 231 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-03-25 04:20:22,614 INFO L241 Difference]: Finished difference. Result has 53 places, 47 transitions, 194 flow [2021-03-25 04:20:22,614 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=121, PETRI_DIFFERENCE_MINUEND_FLOW=145, PETRI_DIFFERENCE_MINUEND_PLACES=50, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=40, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=33, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=194, PETRI_PLACES=53, PETRI_TRANSITIONS=47} [2021-03-25 04:20:22,614 INFO L343 CegarLoopForPetriNet]: 57 programPoint places, -4 predicate places. [2021-03-25 04:20:22,614 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 04:20:22,615 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 53 places, 47 transitions, 194 flow [2021-03-25 04:20:22,615 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 53 places, 47 transitions, 194 flow [2021-03-25 04:20:22,615 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 53 places, 47 transitions, 194 flow [2021-03-25 04:20:22,806 INFO L129 PetriNetUnfolder]: 2326/3585 cut-off events. [2021-03-25 04:20:22,806 INFO L130 PetriNetUnfolder]: For 6/6 co-relation queries the response was YES. [2021-03-25 04:20:22,821 INFO L84 FinitePrefix]: Finished finitePrefix Result has 7170 conditions, 3585 events. 2326/3585 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 318. Compared 22423 event pairs, 1240 based on Foata normal form. 0/2896 useless extension candidates. Maximal degree in co-relation 7146. Up to 3099 conditions per place. [2021-03-25 04:20:22,851 INFO L142 LiptonReduction]: Number of co-enabled transitions 1032 [2021-03-25 04:20:22,862 INFO L154 LiptonReduction]: Checked pairs total: 296 [2021-03-25 04:20:22,862 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 04:20:22,862 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 248 [2021-03-25 04:20:22,863 INFO L480 AbstractCegarLoop]: Abstraction has has 53 places, 47 transitions, 194 flow [2021-03-25 04:20:22,863 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 79.33333333333333) internal successors, (238), 3 states have internal predecessors, (238), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:20:22,863 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 04:20:22,863 INFO L263 CegarLoopForPetriNet]: trace histogram [8, 8, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 04:20:22,863 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2021-03-25 04:20:22,863 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]=== [2021-03-25 04:20:22,864 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 04:20:22,864 INFO L82 PathProgramCache]: Analyzing trace with hash -1561483359, now seen corresponding path program 1 times [2021-03-25 04:20:22,864 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 04:20:22,864 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [541404951] [2021-03-25 04:20:22,864 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 04:20:22,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-03-25 04:20:22,871 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-03-25 04:20:22,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-03-25 04:20:22,876 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-03-25 04:20:22,880 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-03-25 04:20:22,880 INFO L634 BasicCegarLoop]: Counterexample might be feasible [2021-03-25 04:20:22,880 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2021-03-25 04:20:22,880 WARN L342 ceAbstractionStarter]: 7 thread instances were not sufficient, I will increase this number and restart the analysis [2021-03-25 04:20:22,880 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 8 thread instances. [2021-03-25 04:20:22,890 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of8ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:20:22,890 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of8ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:20:22,890 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of8ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:20:22,890 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of8ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:20:22,890 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of8ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:20:22,890 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of8ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:20:22,890 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of8ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:20:22,890 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of8ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:20:22,890 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of8ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:20:22,890 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of8ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:20:22,891 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of8ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:20:22,891 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of8ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:20:22,891 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread7of8ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:20:22,891 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread7of8ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:20:22,891 WARN L313 ript$VariableManager]: TermVariabe thr1Thread7of8ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:20:22,891 WARN L313 ript$VariableManager]: TermVariabe thr1Thread7of8ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:20:22,891 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread7of8ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:20:22,891 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread7of8ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:20:22,891 WARN L313 ript$VariableManager]: TermVariabe thr1Thread7of8ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:20:22,891 WARN L313 ript$VariableManager]: TermVariabe thr1Thread7of8ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:20:22,891 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread7of8ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:20:22,891 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread7of8ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:20:22,891 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread7of8ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:20:22,892 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread7of8ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:20:22,892 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of8ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:20:22,892 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of8ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:20:22,892 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of8ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:20:22,892 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of8ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:20:22,892 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of8ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:20:22,892 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of8ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:20:22,892 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of8ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:20:22,892 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of8ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:20:22,892 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of8ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:20:22,892 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of8ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:20:22,892 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of8ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:20:22,892 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of8ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:20:22,893 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of8ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:20:22,893 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of8ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:20:22,893 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of8ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:20:22,893 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of8ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:20:22,893 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of8ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:20:22,893 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of8ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:20:22,893 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of8ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:20:22,893 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of8ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:20:22,893 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of8ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:20:22,893 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of8ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:20:22,893 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of8ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:20:22,893 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of8ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:20:22,893 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread8of8ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:20:22,894 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread8of8ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:20:22,894 WARN L313 ript$VariableManager]: TermVariabe thr1Thread8of8ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:20:22,894 WARN L313 ript$VariableManager]: TermVariabe thr1Thread8of8ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:20:22,894 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread8of8ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:20:22,894 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread8of8ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:20:22,894 WARN L313 ript$VariableManager]: TermVariabe thr1Thread8of8ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:20:22,894 WARN L313 ript$VariableManager]: TermVariabe thr1Thread8of8ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:20:22,894 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread8of8ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:20:22,894 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread8of8ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:20:22,894 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread8of8ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:20:22,894 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread8of8ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:20:22,894 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of8ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:20:22,894 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of8ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:20:22,894 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of8ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:20:22,895 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of8ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:20:22,895 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of8ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:20:22,895 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of8ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:20:22,895 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of8ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:20:22,895 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of8ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:20:22,895 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of8ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:20:22,895 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of8ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:20:22,895 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of8ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:20:22,895 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of8ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:20:22,895 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread6of8ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:20:22,895 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread6of8ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:20:22,895 WARN L313 ript$VariableManager]: TermVariabe thr1Thread6of8ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:20:22,895 WARN L313 ript$VariableManager]: TermVariabe thr1Thread6of8ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:20:22,895 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread6of8ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:20:22,896 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread6of8ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:20:22,896 WARN L313 ript$VariableManager]: TermVariabe thr1Thread6of8ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:20:22,896 WARN L313 ript$VariableManager]: TermVariabe thr1Thread6of8ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:20:22,896 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread6of8ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:20:22,896 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread6of8ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:20:22,896 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread6of8ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:20:22,896 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread6of8ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:20:22,896 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of8ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:20:22,896 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of8ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:20:22,896 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of8ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:20:22,896 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of8ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:20:22,896 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of8ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:20:22,896 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of8ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:20:22,896 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of8ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:20:22,896 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of8ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:20:22,897 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of8ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:20:22,897 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of8ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:20:22,897 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of8ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:20:22,897 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of8ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:20:22,897 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of8ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:20:22,897 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of8ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:20:22,897 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of8ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:20:22,897 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of8ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:20:22,898 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of8ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:20:22,898 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of8ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:20:22,898 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of8ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:20:22,898 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of8ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:20:22,899 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of8ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:20:22,899 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of8ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:20:22,899 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of8ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:20:22,899 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of8ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:20:22,900 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of8ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:20:22,900 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of8ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:20:22,900 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of8ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:20:22,900 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of8ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:20:22,901 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of8ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:20:22,901 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of8ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:20:22,901 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of8ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:20:22,901 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of8ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:20:22,902 WARN L313 ript$VariableManager]: TermVariabe thr1Thread6of8ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:20:22,902 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread6of8ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:20:22,902 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread6of8ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:20:22,902 WARN L313 ript$VariableManager]: TermVariabe thr1Thread6of8ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:20:22,903 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread7of8ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:20:22,903 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread7of8ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:20:22,903 WARN L313 ript$VariableManager]: TermVariabe thr1Thread7of8ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:20:22,903 WARN L313 ript$VariableManager]: TermVariabe thr1Thread7of8ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:20:22,904 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread8of8ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:20:22,904 WARN L313 ript$VariableManager]: TermVariabe thr1Thread8of8ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:20:22,904 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread8of8ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:20:22,904 WARN L313 ript$VariableManager]: TermVariabe thr1Thread8of8ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:20:22,904 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-03-25 04:20:22,905 INFO L253 AbstractCegarLoop]: Starting to check reachability of 10 error locations. [2021-03-25 04:20:22,905 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-03-25 04:20:22,905 INFO L377 AbstractCegarLoop]: Hoare is false [2021-03-25 04:20:22,905 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-03-25 04:20:22,905 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-03-25 04:20:22,906 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-03-25 04:20:22,906 INFO L381 AbstractCegarLoop]: Difference is false [2021-03-25 04:20:22,906 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-03-25 04:20:22,906 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-03-25 04:20:22,906 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 102 places, 86 transitions, 268 flow [2021-03-25 04:20:22,914 INFO L129 PetriNetUnfolder]: 9/157 cut-off events. [2021-03-25 04:20:22,915 INFO L130 PetriNetUnfolder]: For 112/112 co-relation queries the response was YES. [2021-03-25 04:20:22,915 INFO L84 FinitePrefix]: Finished finitePrefix Result has 218 conditions, 157 events. 9/157 cut-off events. For 112/112 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 363 event pairs, 0 based on Foata normal form. 0/131 useless extension candidates. Maximal degree in co-relation 179. Up to 18 conditions per place. [2021-03-25 04:20:22,915 INFO L82 GeneralOperation]: Start removeDead. Operand has 102 places, 86 transitions, 268 flow [2021-03-25 04:20:22,916 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 102 places, 86 transitions, 268 flow [2021-03-25 04:20:22,916 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 04:20:22,916 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 102 places, 86 transitions, 268 flow [2021-03-25 04:20:22,916 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 102 places, 86 transitions, 268 flow [2021-03-25 04:20:22,917 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 102 places, 86 transitions, 268 flow [2021-03-25 04:20:22,925 INFO L129 PetriNetUnfolder]: 9/157 cut-off events. [2021-03-25 04:20:22,925 INFO L130 PetriNetUnfolder]: For 112/112 co-relation queries the response was YES. [2021-03-25 04:20:22,926 INFO L84 FinitePrefix]: Finished finitePrefix Result has 218 conditions, 157 events. 9/157 cut-off events. For 112/112 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 408 event pairs, 0 based on Foata normal form. 0/131 useless extension candidates. Maximal degree in co-relation 179. Up to 18 conditions per place. [2021-03-25 04:20:22,928 INFO L142 LiptonReduction]: Number of co-enabled transitions 4256 [2021-03-25 04:20:24,312 INFO L154 LiptonReduction]: Checked pairs total: 6921 [2021-03-25 04:20:24,312 INFO L156 LiptonReduction]: Total number of compositions: 47 [2021-03-25 04:20:24,312 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 1396 [2021-03-25 04:20:24,313 INFO L129 PetriNetUnfolder]: 0/7 cut-off events. [2021-03-25 04:20:24,313 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-25 04:20:24,313 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 04:20:24,313 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2021-03-25 04:20:24,313 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]=== [2021-03-25 04:20:24,314 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 04:20:24,314 INFO L82 PathProgramCache]: Analyzing trace with hash 832827984, now seen corresponding path program 1 times [2021-03-25 04:20:24,314 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 04:20:24,314 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1179769707] [2021-03-25 04:20:24,314 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 04:20:24,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 04:20:24,322 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 04:20:24,323 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 04:20:24,325 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 04:20:24,325 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1179769707] [2021-03-25 04:20:24,325 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 04:20:24,325 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-03-25 04:20:24,325 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1300593481] [2021-03-25 04:20:24,325 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-03-25 04:20:24,325 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 04:20:24,326 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-03-25 04:20:24,326 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-25 04:20:24,326 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 73 out of 133 [2021-03-25 04:20:24,326 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 64 places, 47 transitions, 190 flow. Second operand has 3 states, 3 states have (on average 73.66666666666667) internal successors, (221), 3 states have internal predecessors, (221), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:20:24,327 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 04:20:24,327 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 73 of 133 [2021-03-25 04:20:24,327 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 04:21:22,703 INFO L129 PetriNetUnfolder]: 283546/365232 cut-off events. [2021-03-25 04:21:22,703 INFO L130 PetriNetUnfolder]: For 112/112 co-relation queries the response was YES. [2021-03-25 04:21:24,957 INFO L84 FinitePrefix]: Finished finitePrefix Result has 708071 conditions, 365232 events. 283546/365232 cut-off events. For 112/112 co-relation queries the response was YES. Maximal size of possible extension queue 26062. Compared 2766563 event pairs, 226861 based on Foata normal form. 59246/307962 useless extension candidates. Maximal degree in co-relation 707975. Up to 341753 conditions per place. [2021-03-25 04:21:26,828 INFO L132 encePairwiseOnDemand]: 115/133 looper letters, 32 selfloop transitions, 9 changer transitions 0/61 dead transitions. [2021-03-25 04:21:26,829 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 64 places, 61 transitions, 300 flow [2021-03-25 04:21:26,829 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-25 04:21:26,829 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-03-25 04:21:26,830 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 270 transitions. [2021-03-25 04:21:26,830 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6766917293233082 [2021-03-25 04:21:26,830 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 270 transitions. [2021-03-25 04:21:26,830 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 270 transitions. [2021-03-25 04:21:26,830 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 04:21:26,830 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 270 transitions. [2021-03-25 04:21:26,831 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 90.0) internal successors, (270), 3 states have internal predecessors, (270), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:21:26,831 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 133.0) internal successors, (532), 4 states have internal predecessors, (532), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:21:26,832 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 133.0) internal successors, (532), 4 states have internal predecessors, (532), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:21:26,832 INFO L185 Difference]: Start difference. First operand has 64 places, 47 transitions, 190 flow. Second operand 3 states and 270 transitions. [2021-03-25 04:21:26,832 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 64 places, 61 transitions, 300 flow [2021-03-25 04:21:26,833 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 64 places, 61 transitions, 244 flow, removed 28 selfloop flow, removed 0 redundant places. [2021-03-25 04:21:26,834 INFO L241 Difference]: Finished difference. Result has 65 places, 53 transitions, 205 flow [2021-03-25 04:21:26,834 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=133, PETRI_DIFFERENCE_MINUEND_FLOW=130, PETRI_DIFFERENCE_MINUEND_PLACES=62, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=45, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=36, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=205, PETRI_PLACES=65, PETRI_TRANSITIONS=53} [2021-03-25 04:21:26,834 INFO L343 CegarLoopForPetriNet]: 64 programPoint places, 1 predicate places. [2021-03-25 04:21:26,834 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 04:21:26,834 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 65 places, 53 transitions, 205 flow [2021-03-25 04:21:26,834 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 65 places, 53 transitions, 205 flow [2021-03-25 04:21:26,834 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 65 places, 53 transitions, 205 flow [2021-03-25 04:21:28,817 INFO L129 PetriNetUnfolder]: 26647/33004 cut-off events. [2021-03-25 04:21:28,817 INFO L130 PetriNetUnfolder]: For 7/7 co-relation queries the response was YES. [2021-03-25 04:21:28,951 INFO L84 FinitePrefix]: Finished finitePrefix Result has 66000 conditions, 33004 events. 26647/33004 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 3408. Compared 206627 event pairs, 21366 based on Foata normal form. 0/31563 useless extension candidates. Maximal degree in co-relation 65975. Up to 32953 conditions per place. [2021-03-25 04:21:29,301 INFO L142 LiptonReduction]: Number of co-enabled transitions 1492 [2021-03-25 04:21:31,893 INFO L154 LiptonReduction]: Checked pairs total: 1064 [2021-03-25 04:21:31,894 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 04:21:31,894 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 5060 [2021-03-25 04:21:31,894 INFO L480 AbstractCegarLoop]: Abstraction has has 65 places, 53 transitions, 205 flow [2021-03-25 04:21:31,894 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 73.66666666666667) internal successors, (221), 3 states have internal predecessors, (221), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:21:31,894 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 04:21:31,894 INFO L263 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 04:21:31,895 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2021-03-25 04:21:31,895 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]=== [2021-03-25 04:21:31,895 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 04:21:31,895 INFO L82 PathProgramCache]: Analyzing trace with hash 1569199190, now seen corresponding path program 1 times [2021-03-25 04:21:31,895 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 04:21:31,895 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1692022503] [2021-03-25 04:21:31,895 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 04:21:32,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 04:21:32,126 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 04:21:32,126 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 04:21:32,126 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 04:21:32,127 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 04:21:32,129 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 04:21:32,129 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1692022503] [2021-03-25 04:21:32,129 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 04:21:32,129 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-03-25 04:21:32,129 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [550139686] [2021-03-25 04:21:32,129 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-03-25 04:21:32,129 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 04:21:32,130 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-03-25 04:21:32,130 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-25 04:21:32,130 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 85 out of 133 [2021-03-25 04:21:32,131 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 65 places, 53 transitions, 205 flow. Second operand has 3 states, 3 states have (on average 86.33333333333333) internal successors, (259), 3 states have internal predecessors, (259), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:21:32,131 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 04:21:32,131 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 85 of 133 [2021-03-25 04:21:32,131 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 04:21:41,481 INFO L129 PetriNetUnfolder]: 69689/100526 cut-off events. [2021-03-25 04:21:41,481 INFO L130 PetriNetUnfolder]: For 113583/429092 co-relation queries the response was YES. [2021-03-25 04:21:42,161 INFO L84 FinitePrefix]: Finished finitePrefix Result has 204313 conditions, 100526 events. 69689/100526 cut-off events. For 113583/429092 co-relation queries the response was YES. Maximal size of possible extension queue 7313. Compared 842628 event pairs, 40358 based on Foata normal form. 61907/148266 useless extension candidates. Maximal degree in co-relation 204286. Up to 65499 conditions per place. [2021-03-25 04:21:42,892 INFO L132 encePairwiseOnDemand]: 117/133 looper letters, 25 selfloop transitions, 8 changer transitions 0/61 dead transitions. [2021-03-25 04:21:42,892 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 59 places, 61 transitions, 271 flow [2021-03-25 04:21:42,893 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-25 04:21:42,893 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-03-25 04:21:42,893 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 296 transitions. [2021-03-25 04:21:42,894 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7418546365914787 [2021-03-25 04:21:42,894 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 296 transitions. [2021-03-25 04:21:42,894 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 296 transitions. [2021-03-25 04:21:42,894 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 04:21:42,894 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 296 transitions. [2021-03-25 04:21:42,895 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 98.66666666666667) internal successors, (296), 3 states have internal predecessors, (296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:21:42,895 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 133.0) internal successors, (532), 4 states have internal predecessors, (532), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:21:42,896 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 133.0) internal successors, (532), 4 states have internal predecessors, (532), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:21:42,896 INFO L185 Difference]: Start difference. First operand has 65 places, 53 transitions, 205 flow. Second operand 3 states and 296 transitions. [2021-03-25 04:21:42,896 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 59 places, 61 transitions, 271 flow [2021-03-25 04:21:42,901 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 58 places, 61 transitions, 262 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-03-25 04:21:42,902 INFO L241 Difference]: Finished difference. Result has 59 places, 53 transitions, 220 flow [2021-03-25 04:21:42,902 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=133, PETRI_DIFFERENCE_MINUEND_FLOW=164, PETRI_DIFFERENCE_MINUEND_PLACES=56, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=45, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=37, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=220, PETRI_PLACES=59, PETRI_TRANSITIONS=53} [2021-03-25 04:21:42,902 INFO L343 CegarLoopForPetriNet]: 64 programPoint places, -5 predicate places. [2021-03-25 04:21:42,902 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 04:21:42,902 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 59 places, 53 transitions, 220 flow [2021-03-25 04:21:42,902 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 59 places, 53 transitions, 220 flow [2021-03-25 04:21:42,903 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 59 places, 53 transitions, 220 flow [2021-03-25 04:21:43,471 INFO L129 PetriNetUnfolder]: 7877/11456 cut-off events. [2021-03-25 04:21:43,471 INFO L130 PetriNetUnfolder]: For 7/7 co-relation queries the response was YES. [2021-03-25 04:21:43,533 INFO L84 FinitePrefix]: Finished finitePrefix Result has 22912 conditions, 11456 events. 7877/11456 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 921. Compared 77683 event pairs, 4605 based on Foata normal form. 0/9432 useless extension candidates. Maximal degree in co-relation 22887. Up to 10389 conditions per place. [2021-03-25 04:21:43,660 INFO L142 LiptonReduction]: Number of co-enabled transitions 1324 [2021-03-25 04:21:43,938 INFO L154 LiptonReduction]: Checked pairs total: 386 [2021-03-25 04:21:43,939 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 04:21:43,939 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 1037 [2021-03-25 04:21:43,939 INFO L480 AbstractCegarLoop]: Abstraction has has 59 places, 53 transitions, 220 flow [2021-03-25 04:21:43,939 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 86.33333333333333) internal successors, (259), 3 states have internal predecessors, (259), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:21:43,939 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 04:21:43,940 INFO L263 CegarLoopForPetriNet]: trace histogram [9, 9, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 04:21:43,940 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2021-03-25 04:21:43,940 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]=== [2021-03-25 04:21:43,940 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 04:21:43,940 INFO L82 PathProgramCache]: Analyzing trace with hash 934197452, now seen corresponding path program 1 times [2021-03-25 04:21:43,940 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 04:21:43,940 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [23107514] [2021-03-25 04:21:43,940 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 04:21:43,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-03-25 04:21:43,948 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-03-25 04:21:43,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-03-25 04:21:43,954 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-03-25 04:21:43,959 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-03-25 04:21:43,959 INFO L634 BasicCegarLoop]: Counterexample might be feasible [2021-03-25 04:21:43,959 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2021-03-25 04:21:43,959 WARN L342 ceAbstractionStarter]: 8 thread instances were not sufficient, I will increase this number and restart the analysis [2021-03-25 04:21:43,959 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 9 thread instances. [2021-03-25 04:21:43,972 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of9ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:21:43,972 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of9ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:21:43,972 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of9ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:21:43,972 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of9ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:21:43,972 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of9ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:21:43,972 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of9ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:21:43,972 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of9ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:21:43,972 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of9ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:21:43,972 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of9ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:21:43,972 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of9ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:21:43,972 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of9ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:21:43,972 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of9ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:21:43,973 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of9ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:21:43,973 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of9ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:21:43,973 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of9ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:21:43,973 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of9ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:21:43,973 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of9ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:21:43,973 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of9ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:21:43,973 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of9ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:21:43,973 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of9ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:21:43,973 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of9ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:21:43,973 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of9ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:21:43,973 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of9ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:21:43,973 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of9ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:21:43,973 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of9ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:21:43,974 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of9ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:21:43,974 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of9ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:21:43,974 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of9ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:21:43,974 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of9ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:21:43,974 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of9ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:21:43,974 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of9ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:21:43,974 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of9ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:21:43,974 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of9ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:21:43,974 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of9ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:21:43,974 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of9ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:21:43,974 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of9ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:21:43,974 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread7of9ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:21:43,975 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread7of9ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:21:43,975 WARN L313 ript$VariableManager]: TermVariabe thr1Thread7of9ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:21:43,975 WARN L313 ript$VariableManager]: TermVariabe thr1Thread7of9ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:21:43,975 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread7of9ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:21:43,975 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread7of9ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:21:43,975 WARN L313 ript$VariableManager]: TermVariabe thr1Thread7of9ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:21:43,975 WARN L313 ript$VariableManager]: TermVariabe thr1Thread7of9ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:21:43,975 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread7of9ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:21:43,975 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread7of9ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:21:43,975 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread7of9ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:21:43,975 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread7of9ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:21:43,975 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread8of9ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:21:43,975 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread8of9ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:21:43,976 WARN L313 ript$VariableManager]: TermVariabe thr1Thread8of9ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:21:43,976 WARN L313 ript$VariableManager]: TermVariabe thr1Thread8of9ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:21:43,976 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread8of9ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:21:43,976 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread8of9ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:21:43,976 WARN L313 ript$VariableManager]: TermVariabe thr1Thread8of9ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:21:43,976 WARN L313 ript$VariableManager]: TermVariabe thr1Thread8of9ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:21:43,976 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread8of9ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:21:43,976 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread8of9ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:21:43,976 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread8of9ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:21:43,976 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread8of9ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:21:43,976 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread9of9ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:21:43,976 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread9of9ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:21:43,976 WARN L313 ript$VariableManager]: TermVariabe thr1Thread9of9ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:21:43,976 WARN L313 ript$VariableManager]: TermVariabe thr1Thread9of9ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:21:43,976 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread9of9ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:21:43,977 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread9of9ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:21:43,977 WARN L313 ript$VariableManager]: TermVariabe thr1Thread9of9ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:21:43,977 WARN L313 ript$VariableManager]: TermVariabe thr1Thread9of9ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:21:43,977 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread9of9ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:21:43,977 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread9of9ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:21:43,977 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread9of9ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:21:43,977 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread9of9ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:21:43,977 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of9ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:21:43,977 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of9ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:21:43,977 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of9ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:21:43,977 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of9ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:21:43,977 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of9ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:21:43,977 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of9ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:21:43,977 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of9ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:21:43,978 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of9ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:21:43,978 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of9ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:21:43,978 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of9ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:21:43,978 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of9ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:21:43,978 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of9ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:21:43,978 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread6of9ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:21:43,978 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread6of9ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:21:43,978 WARN L313 ript$VariableManager]: TermVariabe thr1Thread6of9ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:21:43,978 WARN L313 ript$VariableManager]: TermVariabe thr1Thread6of9ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:21:43,978 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread6of9ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:21:43,978 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread6of9ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:21:43,978 WARN L313 ript$VariableManager]: TermVariabe thr1Thread6of9ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:21:43,978 WARN L313 ript$VariableManager]: TermVariabe thr1Thread6of9ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:21:43,979 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread6of9ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:21:43,979 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread6of9ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:21:43,979 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread6of9ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:21:43,979 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread6of9ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:21:43,979 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of9ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:21:43,979 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of9ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:21:43,979 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of9ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:21:43,979 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of9ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:21:43,979 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of9ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:21:43,979 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of9ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:21:43,979 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of9ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:21:43,979 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of9ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:21:43,979 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of9ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:21:43,979 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of9ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:21:43,980 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of9ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:21:43,980 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of9ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:21:43,980 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of9ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:21:43,980 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of9ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:21:43,980 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of9ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:21:43,980 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of9ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:21:43,981 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of9ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:21:43,981 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of9ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:21:43,981 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of9ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:21:43,981 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of9ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:21:43,982 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of9ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:21:43,982 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of9ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:21:43,982 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of9ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:21:43,982 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of9ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:21:43,983 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of9ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:21:43,983 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of9ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:21:43,983 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of9ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:21:43,983 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of9ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:21:43,984 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of9ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:21:43,984 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of9ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:21:43,984 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of9ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:21:43,984 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of9ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:21:43,985 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread6of9ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:21:43,985 WARN L313 ript$VariableManager]: TermVariabe thr1Thread6of9ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:21:43,985 WARN L313 ript$VariableManager]: TermVariabe thr1Thread6of9ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:21:43,985 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread6of9ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:21:43,985 WARN L313 ript$VariableManager]: TermVariabe thr1Thread7of9ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:21:43,986 WARN L313 ript$VariableManager]: TermVariabe thr1Thread7of9ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:21:43,986 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread7of9ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:21:43,986 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread7of9ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:21:43,987 WARN L313 ript$VariableManager]: TermVariabe thr1Thread8of9ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:21:43,987 WARN L313 ript$VariableManager]: TermVariabe thr1Thread8of9ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:21:43,987 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread8of9ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:21:43,987 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread8of9ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:21:43,987 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread9of9ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:21:43,988 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread9of9ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:21:43,988 WARN L313 ript$VariableManager]: TermVariabe thr1Thread9of9ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:21:43,988 WARN L313 ript$VariableManager]: TermVariabe thr1Thread9of9ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:21:43,988 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-03-25 04:21:43,989 INFO L253 AbstractCegarLoop]: Starting to check reachability of 11 error locations. [2021-03-25 04:21:43,989 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-03-25 04:21:43,989 INFO L377 AbstractCegarLoop]: Hoare is false [2021-03-25 04:21:43,989 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-03-25 04:21:43,989 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-03-25 04:21:43,989 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-03-25 04:21:43,989 INFO L381 AbstractCegarLoop]: Difference is false [2021-03-25 04:21:43,990 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-03-25 04:21:43,990 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-03-25 04:21:43,990 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 112 places, 94 transitions, 305 flow [2021-03-25 04:21:44,000 INFO L129 PetriNetUnfolder]: 10/174 cut-off events. [2021-03-25 04:21:44,000 INFO L130 PetriNetUnfolder]: For 156/156 co-relation queries the response was YES. [2021-03-25 04:21:44,001 INFO L84 FinitePrefix]: Finished finitePrefix Result has 247 conditions, 174 events. 10/174 cut-off events. For 156/156 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 393 event pairs, 0 based on Foata normal form. 0/145 useless extension candidates. Maximal degree in co-relation 207. Up to 20 conditions per place. [2021-03-25 04:21:44,001 INFO L82 GeneralOperation]: Start removeDead. Operand has 112 places, 94 transitions, 305 flow [2021-03-25 04:21:44,002 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 112 places, 94 transitions, 305 flow [2021-03-25 04:21:44,002 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 04:21:44,002 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 112 places, 94 transitions, 305 flow [2021-03-25 04:21:44,002 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 112 places, 94 transitions, 305 flow [2021-03-25 04:21:44,002 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 112 places, 94 transitions, 305 flow [2021-03-25 04:21:44,012 INFO L129 PetriNetUnfolder]: 10/174 cut-off events. [2021-03-25 04:21:44,012 INFO L130 PetriNetUnfolder]: For 156/156 co-relation queries the response was YES. [2021-03-25 04:21:44,013 INFO L84 FinitePrefix]: Finished finitePrefix Result has 247 conditions, 174 events. 10/174 cut-off events. For 156/156 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 403 event pairs, 0 based on Foata normal form. 0/145 useless extension candidates. Maximal degree in co-relation 207. Up to 20 conditions per place. [2021-03-25 04:21:44,015 INFO L142 LiptonReduction]: Number of co-enabled transitions 5292 [2021-03-25 04:21:45,485 INFO L154 LiptonReduction]: Checked pairs total: 8161 [2021-03-25 04:21:45,486 INFO L156 LiptonReduction]: Total number of compositions: 51 [2021-03-25 04:21:45,486 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 1484 [2021-03-25 04:21:45,487 INFO L129 PetriNetUnfolder]: 0/8 cut-off events. [2021-03-25 04:21:45,487 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-25 04:21:45,487 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 04:21:45,487 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2021-03-25 04:21:45,487 INFO L428 AbstractCegarLoop]: === Iteration 1 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, 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, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-25 04:21:45,487 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 04:21:45,488 INFO L82 PathProgramCache]: Analyzing trace with hash 978467491, now seen corresponding path program 1 times [2021-03-25 04:21:45,488 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 04:21:45,488 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [391022944] [2021-03-25 04:21:45,488 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 04:21:45,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 04:21:45,504 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 04:21:45,504 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 04:21:45,506 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 04:21:45,506 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [391022944] [2021-03-25 04:21:45,506 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 04:21:45,506 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-03-25 04:21:45,506 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [819255460] [2021-03-25 04:21:45,507 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-03-25 04:21:45,507 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 04:21:45,507 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-03-25 04:21:45,507 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-25 04:21:45,508 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 78 out of 145 [2021-03-25 04:21:45,508 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 71 places, 52 transitions, 221 flow. Second operand has 3 states, 3 states have (on average 78.66666666666667) internal successors, (236), 3 states have internal predecessors, (236), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:21:45,508 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 04:21:45,508 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 78 of 145 [2021-03-25 04:21:45,508 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand