/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/automizer/concurrent/VMCAI2021_PN.epf -i ../../../trunk/examples/svcomp/pthread/queue_longest.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-11af1e5 [2020-10-11 16:38:53,663 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-11 16:38:53,666 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-11 16:38:53,692 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-11 16:38:53,693 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-11 16:38:53,694 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-11 16:38:53,695 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-11 16:38:53,698 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-11 16:38:53,700 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-11 16:38:53,702 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-11 16:38:53,703 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-11 16:38:53,705 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-11 16:38:53,705 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-11 16:38:53,706 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-11 16:38:53,708 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-11 16:38:53,709 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-11 16:38:53,711 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-11 16:38:53,712 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-11 16:38:53,714 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-11 16:38:53,717 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-11 16:38:53,719 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-11 16:38:53,721 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-11 16:38:53,723 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-11 16:38:53,724 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-11 16:38:53,727 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-11 16:38:53,728 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-11 16:38:53,728 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-11 16:38:53,729 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-11 16:38:53,730 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-11 16:38:53,731 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-11 16:38:53,731 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-11 16:38:53,732 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-11 16:38:53,733 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-11 16:38:53,734 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-11 16:38:53,735 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-11 16:38:53,736 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-11 16:38:53,737 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-11 16:38:53,737 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-11 16:38:53,737 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-11 16:38:53,738 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-11 16:38:53,739 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-11 16:38:53,740 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/VMCAI2021_PN.epf [2020-10-11 16:38:53,766 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-11 16:38:53,766 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-11 16:38:53,768 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-11 16:38:53,768 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-11 16:38:53,769 INFO L138 SettingsManager]: * Use SBE=true [2020-10-11 16:38:53,769 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-11 16:38:53,769 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-11 16:38:53,769 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-11 16:38:53,769 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-11 16:38:53,770 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-11 16:38:53,770 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-11 16:38:53,770 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-11 16:38:53,770 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-11 16:38:53,770 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-11 16:38:53,771 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-11 16:38:53,771 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-11 16:38:53,774 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-11 16:38:53,775 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-11 16:38:53,775 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-11 16:38:53,775 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-11 16:38:53,775 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-11 16:38:53,775 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-11 16:38:53,776 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-11 16:38:53,776 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-11 16:38:53,776 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-11 16:38:53,776 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-11 16:38:53,777 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-11 16:38:53,777 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2020-10-11 16:38:53,777 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2020-10-11 16:38:53,777 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-10-11 16:38:54,141 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-11 16:38:54,158 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-11 16:38:54,164 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-11 16:38:54,165 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-11 16:38:54,166 INFO L275 PluginConnector]: CDTParser initialized [2020-10-11 16:38:54,166 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread/queue_longest.i [2020-10-11 16:38:54,235 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/aa81c47f7/7df603b967434a8d9265f9a30e24c3c9/FLAG78cbc8bfd [2020-10-11 16:38:54,829 INFO L306 CDTParser]: Found 1 translation units. [2020-10-11 16:38:54,830 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread/queue_longest.i [2020-10-11 16:38:54,864 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/aa81c47f7/7df603b967434a8d9265f9a30e24c3c9/FLAG78cbc8bfd [2020-10-11 16:38:55,152 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/aa81c47f7/7df603b967434a8d9265f9a30e24c3c9 [2020-10-11 16:38:55,161 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-11 16:38:55,163 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-10-11 16:38:55,164 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-11 16:38:55,164 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-11 16:38:55,168 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-11 16:38:55,170 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 04:38:55" (1/1) ... [2020-10-11 16:38:55,174 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6330fec4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 04:38:55, skipping insertion in model container [2020-10-11 16:38:55,174 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 04:38:55" (1/1) ... [2020-10-11 16:38:55,186 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-11 16:38:55,271 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-11 16:38:56,065 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-11 16:38:56,089 INFO L203 MainTranslator]: Completed pre-run [2020-10-11 16:38:56,151 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-11 16:38:56,335 INFO L208 MainTranslator]: Completed translation [2020-10-11 16:38:56,335 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 04:38:56 WrapperNode [2020-10-11 16:38:56,335 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-11 16:38:56,336 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-11 16:38:56,337 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-11 16:38:56,337 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-11 16:38:56,348 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 04:38:56" (1/1) ... [2020-10-11 16:38:56,390 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 04:38:56" (1/1) ... [2020-10-11 16:38:56,430 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-11 16:38:56,431 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-11 16:38:56,431 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-11 16:38:56,431 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-11 16:38:56,442 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 04:38:56" (1/1) ... [2020-10-11 16:38:56,443 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 04:38:56" (1/1) ... [2020-10-11 16:38:56,448 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 04:38:56" (1/1) ... [2020-10-11 16:38:56,449 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 04:38:56" (1/1) ... [2020-10-11 16:38:56,466 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 04:38:56" (1/1) ... [2020-10-11 16:38:56,472 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 04:38:56" (1/1) ... [2020-10-11 16:38:56,476 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 04:38:56" (1/1) ... [2020-10-11 16:38:56,482 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-11 16:38:56,483 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-11 16:38:56,483 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-11 16:38:56,483 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-11 16:38:56,484 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 04:38:56" (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 [2020-10-11 16:38:56,551 INFO L130 BoogieDeclarations]: Found specification of procedure t1 [2020-10-11 16:38:56,551 INFO L138 BoogieDeclarations]: Found implementation of procedure t1 [2020-10-11 16:38:56,552 INFO L130 BoogieDeclarations]: Found specification of procedure t2 [2020-10-11 16:38:56,552 INFO L138 BoogieDeclarations]: Found implementation of procedure t2 [2020-10-11 16:38:56,557 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-11 16:38:56,558 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-11 16:38:56,558 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-11 16:38:56,559 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-11 16:38:56,559 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2020-10-11 16:38:56,559 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-11 16:38:56,559 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-11 16:38:56,559 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-11 16:38:56,562 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-10-11 16:38:57,259 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-11 16:38:57,259 INFO L298 CfgBuilder]: Removed 18 assume(true) statements. [2020-10-11 16:38:57,262 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 04:38:57 BoogieIcfgContainer [2020-10-11 16:38:57,263 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-11 16:38:57,264 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-11 16:38:57,265 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-11 16:38:57,269 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-11 16:38:57,269 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.10 04:38:55" (1/3) ... [2020-10-11 16:38:57,270 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6347be67 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 04:38:57, skipping insertion in model container [2020-10-11 16:38:57,271 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 04:38:56" (2/3) ... [2020-10-11 16:38:57,271 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6347be67 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 04:38:57, skipping insertion in model container [2020-10-11 16:38:57,272 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 04:38:57" (3/3) ... [2020-10-11 16:38:57,274 INFO L111 eAbstractionObserver]: Analyzing ICFG queue_longest.i [2020-10-11 16:38:57,289 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-11 16:38:57,299 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2020-10-11 16:38:57,301 INFO L348 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-10-11 16:38:57,352 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:38:57,352 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:38:57,353 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:38:57,353 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:38:57,353 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~value~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:38:57,354 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:38:57,354 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~nondet50| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:38:57,354 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~nondet50| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:38:57,354 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~nondet51| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:38:57,355 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~nondet51| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:38:57,355 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~value~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:38:57,356 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~nondet51| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:38:57,356 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~value~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:38:57,356 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_enqueue_#in~q.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:38:57,357 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_enqueue_#in~q.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:38:57,357 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_enqueue_#in~x| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:38:57,357 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_enqueue_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:38:57,357 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_enqueue_#t~post39| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:38:57,358 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_enqueue_~x not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:38:57,358 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_enqueue_#t~mem40| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:38:57,358 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_enqueue_#t~mem41| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:38:57,358 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_enqueue_#t~mem38| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:38:57,359 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_enqueue_#t~mem37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:38:57,359 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_enqueue_~q.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:38:57,359 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_enqueue_#t~post42| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:38:57,359 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_enqueue_~q.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:38:57,359 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_enqueue_#in~q.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:38:57,360 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_enqueue_#in~q.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:38:57,360 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_enqueue_~q.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:38:57,360 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_enqueue_~q.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:38:57,361 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_enqueue_#in~x| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:38:57,361 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_enqueue_~x not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:38:57,361 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_enqueue_~q.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:38:57,361 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_enqueue_~q.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:38:57,361 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_enqueue_#t~mem37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:38:57,362 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_enqueue_~x not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:38:57,362 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_enqueue_~q.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:38:57,362 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_enqueue_#t~mem37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:38:57,363 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_enqueue_~q.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:38:57,363 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_enqueue_#t~mem37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:38:57,363 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_enqueue_~q.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:38:57,363 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_enqueue_~q.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:38:57,364 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_enqueue_#t~mem38| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:38:57,364 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_enqueue_#t~mem38| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:38:57,364 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_enqueue_#t~post39| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:38:57,365 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_enqueue_#t~post39| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:38:57,365 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_enqueue_~q.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:38:57,365 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_enqueue_~q.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:38:57,365 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_enqueue_#t~mem38| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:38:57,366 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_enqueue_#t~post39| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:38:57,366 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_enqueue_~q.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:38:57,366 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_enqueue_~q.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:38:57,366 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_enqueue_#t~mem40| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:38:57,367 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_enqueue_#t~mem40| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:38:57,367 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_enqueue_#t~mem40| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:38:57,367 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_enqueue_#t~mem40| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:38:57,367 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_enqueue_#t~mem40| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:38:57,368 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_enqueue_~q.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:38:57,368 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_enqueue_~q.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:38:57,368 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_enqueue_~q.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:38:57,368 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_enqueue_~q.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:38:57,369 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_enqueue_#t~mem41| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:38:57,369 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_enqueue_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:38:57,369 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_enqueue_#t~mem41| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:38:57,369 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_enqueue_#t~post42| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:38:57,369 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_enqueue_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:38:57,370 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~ret52| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:38:57,370 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_enqueue_~q.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:38:57,370 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_enqueue_#t~post42| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:38:57,370 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_enqueue_~q.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:38:57,371 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~ret52| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:38:57,371 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_enqueue_#t~mem41| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:38:57,371 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~ret52| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:38:57,372 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~ret52| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:38:57,372 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_enqueue_#t~post42| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:38:57,372 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~ret52| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:38:57,372 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~ret52| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:38:57,373 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~value~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:38:57,373 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_empty_#in~q.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:38:57,373 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_empty_#in~q.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:38:57,374 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_empty_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:38:57,374 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_empty_#t~mem31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:38:57,374 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_empty_#t~mem30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:38:57,374 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_empty_~q.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:38:57,375 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_empty_~q.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:38:57,375 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_empty_#t~nondet32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:38:57,375 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_empty_#in~q.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:38:57,375 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_empty_#in~q.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:38:57,375 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_empty_~q.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:38:57,376 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_empty_~q.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:38:57,376 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_empty_~q.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:38:57,376 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_empty_~q.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:38:57,376 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_empty_#t~mem30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:38:57,377 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_empty_~q.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:38:57,377 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_empty_~q.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:38:57,377 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_empty_#t~mem31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:38:57,378 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_empty_#t~mem31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:38:57,378 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_empty_#t~mem30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:38:57,378 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_empty_#t~mem31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:38:57,379 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_empty_#t~mem30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:38:57,379 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_empty_#t~mem30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:38:57,379 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_empty_#t~mem30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:38:57,379 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_empty_#t~mem31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:38:57,379 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_empty_#t~mem31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:38:57,380 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_empty_#t~nondet32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:38:57,380 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_empty_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:38:57,380 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_empty_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:38:57,381 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_empty_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:38:57,381 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~ret53| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:38:57,381 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~ret53| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:38:57,381 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~ret53| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:38:57,382 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~ret53| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:38:57,382 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~ret53| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:38:57,382 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~ret53| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:38:57,383 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:38:57,383 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:38:57,383 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:38:57,383 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:38:57,384 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:38:57,384 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~nondet55| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:38:57,384 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~nondet55| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:38:57,384 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~nondet56| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:38:57,385 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~nondet56| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:38:57,385 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~value~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:38:57,385 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:38:57,385 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~post54| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:38:57,386 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~nondet56| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:38:57,386 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~post54| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:38:57,386 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:38:57,386 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~value~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:38:57,387 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_enqueue_#in~q.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:38:57,387 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_enqueue_#in~q.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:38:57,387 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_enqueue_#in~x| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:38:57,388 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~post54| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:38:57,388 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_enqueue_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:38:57,388 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_enqueue_#t~post39| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:38:57,388 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_enqueue_~x not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:38:57,388 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_enqueue_#t~mem40| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:38:57,389 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_enqueue_#t~mem41| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:38:57,389 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_enqueue_#t~mem38| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:38:57,389 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_enqueue_#t~mem37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:38:57,389 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_enqueue_~q.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:38:57,389 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_enqueue_#t~post42| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:38:57,390 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_enqueue_~q.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:38:57,390 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_enqueue_#in~q.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:38:57,390 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_enqueue_#in~q.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:38:57,391 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_enqueue_~q.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:38:57,391 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_enqueue_~q.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:38:57,391 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_enqueue_#in~x| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:38:57,391 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_enqueue_~x not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:38:57,391 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_enqueue_~q.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:38:57,392 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_enqueue_~q.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:38:57,392 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_enqueue_#t~mem37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:38:57,392 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_enqueue_~x not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:38:57,392 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_enqueue_~q.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:38:57,393 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_enqueue_#t~mem37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:38:57,393 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_enqueue_~q.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:38:57,393 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_enqueue_#t~mem37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:38:57,393 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_enqueue_~q.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:38:57,394 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_enqueue_~q.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:38:57,394 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_enqueue_#t~mem38| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:38:57,394 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_enqueue_#t~mem38| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:38:57,394 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_enqueue_#t~post39| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:38:57,394 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_enqueue_#t~post39| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:38:57,395 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_enqueue_~q.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:38:57,395 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_enqueue_~q.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:38:57,395 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_enqueue_#t~mem38| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:38:57,396 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_enqueue_#t~post39| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:38:57,396 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_enqueue_~q.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:38:57,396 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_enqueue_~q.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:38:57,396 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_enqueue_#t~mem40| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:38:57,396 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_enqueue_#t~mem40| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:38:57,397 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_enqueue_#t~mem40| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:38:57,397 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_enqueue_#t~mem40| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:38:57,397 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_enqueue_#t~mem40| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:38:57,397 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_enqueue_~q.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:38:57,398 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_enqueue_~q.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:38:57,398 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_enqueue_~q.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:38:57,398 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_enqueue_~q.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:38:57,398 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_enqueue_#t~mem41| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:38:57,399 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_enqueue_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:38:57,399 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_enqueue_#t~mem41| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:38:57,399 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_enqueue_#t~post42| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:38:57,399 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_enqueue_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:38:57,399 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~ret57| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:38:57,400 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_enqueue_~q.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:38:57,400 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_enqueue_#t~post42| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:38:57,400 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_enqueue_~q.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:38:57,400 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~ret57| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:38:57,400 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_enqueue_#t~mem41| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:38:57,401 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~ret57| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:38:57,401 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_enqueue_#t~post42| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:38:57,401 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:38:57,401 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~value~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:38:57,403 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:38:57,403 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:38:57,403 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:38:57,404 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:38:57,404 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:38:57,404 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:38:57,404 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:38:57,405 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:38:57,405 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:38:57,405 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:38:57,405 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~nondet59| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:38:57,406 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~nondet59| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:38:57,406 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_dequeue_#in~q.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:38:57,406 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_dequeue_#in~q.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:38:57,407 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_dequeue_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:38:57,428 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:38:57,429 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~post58| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:38:57,429 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_dequeue_#t~post46| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:38:57,429 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_dequeue_~x~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:38:57,429 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_dequeue_~q.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:38:57,429 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_dequeue_#t~mem44| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:38:57,429 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_dequeue_#t~mem43| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:38:57,430 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_dequeue_#t~post49| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:38:57,430 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_dequeue_~q.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:38:57,430 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_dequeue_#t~mem45| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:38:57,430 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_dequeue_#t~mem48| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:38:57,430 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_dequeue_#t~mem47| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:38:57,430 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~post58| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:38:57,431 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:38:57,431 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_dequeue_#in~q.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:38:57,431 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_dequeue_#in~q.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:38:57,431 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_dequeue_~q.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:38:57,432 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_dequeue_~q.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:38:57,432 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~post58| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:38:57,432 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_dequeue_~x~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:38:57,432 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_dequeue_~q.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:38:57,432 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_dequeue_~q.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:38:57,432 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_dequeue_#t~mem43| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:38:57,433 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_dequeue_~q.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:38:57,433 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_dequeue_~q.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:38:57,433 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_dequeue_#t~mem43| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:38:57,433 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_dequeue_#t~mem44| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:38:57,434 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_dequeue_#t~mem44| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:38:57,434 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_dequeue_~x~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:38:57,434 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_dequeue_#t~mem44| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:38:57,434 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_dequeue_#t~mem43| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:38:57,434 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_dequeue_~q.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:38:57,434 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_dequeue_~q.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:38:57,435 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_dequeue_#t~mem45| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:38:57,435 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_dequeue_#t~mem45| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:38:57,435 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_dequeue_#t~post46| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:38:57,435 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_dequeue_#t~post46| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:38:57,435 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_dequeue_~q.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:38:57,436 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_dequeue_~q.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:38:57,436 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_dequeue_#t~post46| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:38:57,436 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_dequeue_#t~mem45| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:38:57,436 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_dequeue_~q.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:38:57,436 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_dequeue_~q.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:38:57,437 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_dequeue_#t~mem47| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:38:57,437 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_dequeue_#t~mem47| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:38:57,437 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_dequeue_#t~mem47| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:38:57,437 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_dequeue_#t~mem47| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:38:57,437 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_dequeue_#t~mem47| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:38:57,438 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_dequeue_~q.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:38:57,438 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_dequeue_~q.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:38:57,438 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_dequeue_~q.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:38:57,438 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_dequeue_~q.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:38:57,438 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_dequeue_#t~mem48| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:38:57,439 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_dequeue_~x~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:38:57,439 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_dequeue_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:38:57,439 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_dequeue_#t~mem48| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:38:57,439 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_dequeue_#t~post49| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:38:57,439 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_dequeue_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:38:57,439 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~ret60| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:38:57,440 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_dequeue_~q.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:38:57,440 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_dequeue_#t~post49| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:38:57,440 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_dequeue_~q.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:38:57,440 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~ret60| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:38:57,440 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_dequeue_#t~post49| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:38:57,441 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:38:57,441 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~mem61| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:38:57,441 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_dequeue_#t~mem48| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:38:57,441 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~mem61| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:38:57,441 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~ret60| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:38:57,442 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~mem61| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:38:57,442 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~ret60| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:38:57,442 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~ret60| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:38:57,442 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~ret60| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:38:57,442 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~mem61| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:38:57,442 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~mem61| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:38:57,446 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_empty_~q.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:38:57,447 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:38:57,447 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_enqueue_#in~q.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:38:57,447 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_enqueue_#in~x| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:38:57,448 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_enqueue_#t~post39| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:38:57,448 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~value~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:38:57,448 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:38:57,448 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_enqueue_~x not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:38:57,448 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_enqueue_~q.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:38:57,449 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_empty_#in~q.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:38:57,449 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:38:57,449 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_empty_#in~q.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:38:57,449 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_enqueue_#in~q.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:38:57,449 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:38:57,449 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_enqueue_~q.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:38:57,450 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~ret52| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:38:57,450 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_enqueue_#t~mem41| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:38:57,450 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~nondet50| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:38:57,450 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~ret53| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:38:57,451 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_enqueue_#t~mem40| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:38:57,451 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~nondet51| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:38:57,451 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_enqueue_#t~post42| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:38:57,451 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~ret57| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:38:57,451 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:38:57,451 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_empty_#t~nondet32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:38:57,452 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_empty_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:38:57,452 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_empty_#t~mem31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:38:57,452 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~post54| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:38:57,452 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_empty_#t~mem30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:38:57,452 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_enqueue_#t~mem38| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:38:57,453 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_enqueue_#t~mem37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:38:57,453 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_enqueue_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:38:57,453 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~nondet56| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:38:57,453 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_empty_~q.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:38:57,453 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~nondet55| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:38:57,462 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_dequeue_#t~mem47| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:38:57,462 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_dequeue_#t~mem45| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:38:57,463 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_dequeue_#t~mem44| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:38:57,463 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_dequeue_~q.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:38:57,463 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:38:57,463 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:38:57,463 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_dequeue_#t~mem48| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:38:57,464 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_dequeue_~q.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:38:57,464 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_dequeue_#t~mem43| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:38:57,464 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~nondet59| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:38:57,464 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_dequeue_#t~post49| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:38:57,464 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:38:57,464 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~ret60| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:38:57,465 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_dequeue_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:38:57,465 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_dequeue_#t~post46| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:38:57,465 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~post58| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:38:57,465 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:38:57,465 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:38:57,466 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_dequeue_~x~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:38:57,466 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~mem61| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:38:57,466 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_dequeue_#in~q.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:38:57,466 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_dequeue_#in~q.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:38:57,494 INFO L253 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2020-10-11 16:38:57,518 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-11 16:38:57,519 INFO L378 AbstractCegarLoop]: Hoare is false [2020-10-11 16:38:57,519 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-11 16:38:57,519 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-11 16:38:57,519 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-11 16:38:57,519 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-11 16:38:57,519 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-11 16:38:57,520 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-11 16:38:57,543 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 234 places, 244 transitions, 510 flow [2020-10-11 16:38:57,711 INFO L129 PetriNetUnfolder]: 16/244 cut-off events. [2020-10-11 16:38:57,711 INFO L130 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2020-10-11 16:38:57,723 INFO L80 FinitePrefix]: Finished finitePrefix Result has 255 conditions, 244 events. 16/244 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 381 event pairs, 0 based on Foata normal form. 0/226 useless extension candidates. Maximal degree in co-relation 179. Up to 3 conditions per place. [2020-10-11 16:38:57,724 INFO L82 GeneralOperation]: Start removeDead. Operand has 234 places, 244 transitions, 510 flow [2020-10-11 16:38:57,737 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 223 places, 232 transitions, 476 flow [2020-10-11 16:38:57,751 INFO L129 PetriNetUnfolder]: 2/52 cut-off events. [2020-10-11 16:38:57,751 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-10-11 16:38:57,751 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-11 16:38:57,753 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-11 16:38:57,754 INFO L429 AbstractCegarLoop]: === Iteration 1 === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-11 16:38:57,761 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-11 16:38:57,762 INFO L82 PathProgramCache]: Analyzing trace with hash 1392109782, now seen corresponding path program 1 times [2020-10-11 16:38:57,775 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-11 16:38:57,775 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1902354695] [2020-10-11 16:38:57,776 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-11 16:38:57,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-11 16:38:58,049 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-11 16:38:58,050 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1902354695] [2020-10-11 16:38:58,051 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-11 16:38:58,052 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-11 16:38:58,053 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1902070028] [2020-10-11 16:38:58,068 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-10-11 16:38:58,069 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-11 16:38:58,088 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-10-11 16:38:58,091 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-10-11 16:38:58,100 INFO L506 CegarLoopForPetriNet]: Number of universal loopers: 238 out of 244 [2020-10-11 16:38:58,106 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 223 places, 232 transitions, 476 flow. Second operand 2 states. [2020-10-11 16:38:58,107 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-10-11 16:38:58,107 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 238 of 244 [2020-10-11 16:38:58,109 INFO L71 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2020-10-11 16:38:58,182 INFO L129 PetriNetUnfolder]: 10/226 cut-off events. [2020-10-11 16:38:58,183 INFO L130 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2020-10-11 16:38:58,186 INFO L80 FinitePrefix]: Finished finitePrefix Result has 236 conditions, 226 events. 10/226 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 280 event pairs, 0 based on Foata normal form. 5/219 useless extension candidates. Maximal degree in co-relation 232. Up to 2 conditions per place. [2020-10-11 16:38:58,189 INFO L132 encePairwiseOnDemand]: 239/244 looper letters, 0 selfloop transitions, 0 changer transitions 0/224 dead transitions. [2020-10-11 16:38:58,189 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 221 places, 224 transitions, 460 flow [2020-10-11 16:38:58,190 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-10-11 16:38:58,193 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2020-10-11 16:38:58,205 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 481 transitions. [2020-10-11 16:38:58,210 INFO L551 CegarLoopForPetriNet]: DFA transition density 0.985655737704918 [2020-10-11 16:38:58,211 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 481 transitions. [2020-10-11 16:38:58,212 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 481 transitions. [2020-10-11 16:38:58,216 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-11 16:38:58,220 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 481 transitions. [2020-10-11 16:38:58,225 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 3 states. [2020-10-11 16:38:58,235 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result 3 states. [2020-10-11 16:38:58,236 INFO L81 ComplementDD]: Finished complementDD. Result 3 states. [2020-10-11 16:38:58,239 INFO L185 Difference]: Start difference. First operand has 223 places, 232 transitions, 476 flow. Second operand 2 states and 481 transitions. [2020-10-11 16:38:58,242 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 221 places, 224 transitions, 460 flow [2020-10-11 16:38:58,252 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 217 places, 224 transitions, 452 flow, removed 0 selfloop flow, removed 4 redundant places. [2020-10-11 16:38:58,258 INFO L241 Difference]: Finished difference. Result has 217 places, 224 transitions, 452 flow [2020-10-11 16:38:58,262 INFO L325 CegarLoopForPetriNet]: {PETRI_ALPHABET=244, PETRI_DIFFERENCE_MINUEND_FLOW=452, PETRI_DIFFERENCE_MINUEND_PLACES=216, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=224, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=224, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=452, PETRI_PLACES=217, PETRI_TRANSITIONS=224} [2020-10-11 16:38:58,263 INFO L341 CegarLoopForPetriNet]: 223 programPoint places, -6 predicate places. [2020-10-11 16:38:58,263 INFO L481 AbstractCegarLoop]: Abstraction has has 217 places, 224 transitions, 452 flow [2020-10-11 16:38:58,263 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-10-11 16:38:58,264 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-11 16:38:58,264 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-11 16:38:58,264 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-11 16:38:58,265 INFO L429 AbstractCegarLoop]: === Iteration 2 === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-11 16:38:58,265 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-11 16:38:58,266 INFO L82 PathProgramCache]: Analyzing trace with hash 352145242, now seen corresponding path program 1 times [2020-10-11 16:38:58,266 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-11 16:38:58,266 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [206195352] [2020-10-11 16:38:58,266 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-11 16:38:58,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-11 16:38:58,725 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-11 16:38:58,726 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [206195352] [2020-10-11 16:38:58,726 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-11 16:38:58,726 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-10-11 16:38:58,727 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [903278131] [2020-10-11 16:38:58,729 INFO L461 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-11 16:38:58,730 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-11 16:38:58,731 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-11 16:38:58,731 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2020-10-11 16:39:06,434 INFO L506 CegarLoopForPetriNet]: Number of universal loopers: 203 out of 244 [2020-10-11 16:39:06,436 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 217 places, 224 transitions, 452 flow. Second operand 12 states. [2020-10-11 16:39:06,436 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-10-11 16:39:06,436 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 203 of 244 [2020-10-11 16:39:06,437 INFO L71 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2020-10-11 16:39:07,028 INFO L129 PetriNetUnfolder]: 73/655 cut-off events. [2020-10-11 16:39:07,029 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-10-11 16:39:07,036 INFO L80 FinitePrefix]: Finished finitePrefix Result has 772 conditions, 655 events. 73/655 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 3018 event pairs, 30 based on Foata normal form. 0/614 useless extension candidates. Maximal degree in co-relation 769. Up to 94 conditions per place. [2020-10-11 16:39:07,041 INFO L132 encePairwiseOnDemand]: 229/244 looper letters, 20 selfloop transitions, 14 changer transitions 0/222 dead transitions. [2020-10-11 16:39:07,041 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 226 places, 222 transitions, 516 flow [2020-10-11 16:39:07,042 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-11 16:39:07,042 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2020-10-11 16:39:07,055 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 2674 transitions. [2020-10-11 16:39:07,057 INFO L551 CegarLoopForPetriNet]: DFA transition density 0.8430012610340479 [2020-10-11 16:39:07,057 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 2674 transitions. [2020-10-11 16:39:07,058 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 2674 transitions. [2020-10-11 16:39:07,060 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-11 16:39:07,060 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 2674 transitions. [2020-10-11 16:39:07,069 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 14 states. [2020-10-11 16:39:07,079 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result 14 states. [2020-10-11 16:39:07,080 INFO L81 ComplementDD]: Finished complementDD. Result 14 states. [2020-10-11 16:39:07,080 INFO L185 Difference]: Start difference. First operand has 217 places, 224 transitions, 452 flow. Second operand 13 states and 2674 transitions. [2020-10-11 16:39:07,080 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 226 places, 222 transitions, 516 flow [2020-10-11 16:39:07,086 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 226 places, 222 transitions, 516 flow, removed 0 selfloop flow, removed 0 redundant places. [2020-10-11 16:39:07,098 INFO L241 Difference]: Finished difference. Result has 227 places, 222 transitions, 485 flow [2020-10-11 16:39:07,099 INFO L325 CegarLoopForPetriNet]: {PETRI_ALPHABET=244, PETRI_DIFFERENCE_MINUEND_FLOW=444, PETRI_DIFFERENCE_MINUEND_PLACES=214, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=220, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=12, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=206, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=485, PETRI_PLACES=227, PETRI_TRANSITIONS=222} [2020-10-11 16:39:07,099 INFO L341 CegarLoopForPetriNet]: 223 programPoint places, 4 predicate places. [2020-10-11 16:39:07,099 INFO L481 AbstractCegarLoop]: Abstraction has has 227 places, 222 transitions, 485 flow [2020-10-11 16:39:07,100 INFO L482 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-11 16:39:07,100 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-11 16:39:07,100 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-11 16:39:07,101 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-11 16:39:07,102 INFO L429 AbstractCegarLoop]: === Iteration 3 === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-11 16:39:07,102 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-11 16:39:07,102 INFO L82 PathProgramCache]: Analyzing trace with hash -1780751271, now seen corresponding path program 1 times [2020-10-11 16:39:07,102 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-11 16:39:07,103 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1156125668] [2020-10-11 16:39:07,103 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-11 16:39:07,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-11 16:39:07,208 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-11 16:39:07,209 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1156125668] [2020-10-11 16:39:07,209 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-11 16:39:07,209 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-11 16:39:07,209 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1446915592] [2020-10-11 16:39:07,210 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-11 16:39:07,210 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-11 16:39:07,210 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-11 16:39:07,210 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-11 16:39:07,279 INFO L506 CegarLoopForPetriNet]: Number of universal loopers: 228 out of 244 [2020-10-11 16:39:07,280 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 227 places, 222 transitions, 485 flow. Second operand 4 states. [2020-10-11 16:39:07,281 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-10-11 16:39:07,281 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 228 of 244 [2020-10-11 16:39:07,281 INFO L71 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2020-10-11 16:39:07,349 INFO L129 PetriNetUnfolder]: 14/315 cut-off events. [2020-10-11 16:39:07,349 INFO L130 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2020-10-11 16:39:07,352 INFO L80 FinitePrefix]: Finished finitePrefix Result has 355 conditions, 315 events. 14/315 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 657 event pairs, 0 based on Foata normal form. 0/299 useless extension candidates. Maximal degree in co-relation 350. Up to 6 conditions per place. [2020-10-11 16:39:07,353 INFO L132 encePairwiseOnDemand]: 238/244 looper letters, 3 selfloop transitions, 5 changer transitions 0/220 dead transitions. [2020-10-11 16:39:07,353 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 229 places, 220 transitions, 497 flow [2020-10-11 16:39:07,354 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-11 16:39:07,354 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-10-11 16:39:07,356 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 921 transitions. [2020-10-11 16:39:07,357 INFO L551 CegarLoopForPetriNet]: DFA transition density 0.9436475409836066 [2020-10-11 16:39:07,357 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 921 transitions. [2020-10-11 16:39:07,357 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 921 transitions. [2020-10-11 16:39:07,358 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-11 16:39:07,358 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 921 transitions. [2020-10-11 16:39:07,360 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 5 states. [2020-10-11 16:39:07,362 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result 5 states. [2020-10-11 16:39:07,364 INFO L81 ComplementDD]: Finished complementDD. Result 5 states. [2020-10-11 16:39:07,364 INFO L185 Difference]: Start difference. First operand has 227 places, 222 transitions, 485 flow. Second operand 4 states and 921 transitions. [2020-10-11 16:39:07,365 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 229 places, 220 transitions, 497 flow [2020-10-11 16:39:07,368 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 219 places, 220 transitions, 476 flow, removed 0 selfloop flow, removed 10 redundant places. [2020-10-11 16:39:07,371 INFO L241 Difference]: Finished difference. Result has 219 places, 220 transitions, 470 flow [2020-10-11 16:39:07,372 INFO L325 CegarLoopForPetriNet]: {PETRI_ALPHABET=244, PETRI_DIFFERENCE_MINUEND_FLOW=460, PETRI_DIFFERENCE_MINUEND_PLACES=216, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=220, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=215, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=470, PETRI_PLACES=219, PETRI_TRANSITIONS=220} [2020-10-11 16:39:07,372 INFO L341 CegarLoopForPetriNet]: 223 programPoint places, -4 predicate places. [2020-10-11 16:39:07,373 INFO L481 AbstractCegarLoop]: Abstraction has has 219 places, 220 transitions, 470 flow [2020-10-11 16:39:07,373 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-11 16:39:07,373 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-11 16:39:07,373 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-11 16:39:07,374 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-11 16:39:07,374 INFO L429 AbstractCegarLoop]: === Iteration 4 === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-11 16:39:07,374 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-11 16:39:07,374 INFO L82 PathProgramCache]: Analyzing trace with hash -963916843, now seen corresponding path program 1 times [2020-10-11 16:39:07,375 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-11 16:39:07,375 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [575015524] [2020-10-11 16:39:07,375 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-11 16:39:07,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-11 16:39:07,549 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-11 16:39:07,550 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [575015524] [2020-10-11 16:39:07,550 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-11 16:39:07,550 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-11 16:39:07,551 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1188629949] [2020-10-11 16:39:07,551 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-11 16:39:07,552 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-11 16:39:07,552 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-11 16:39:07,552 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-11 16:39:07,575 INFO L506 CegarLoopForPetriNet]: Number of universal loopers: 233 out of 244 [2020-10-11 16:39:07,576 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 219 places, 220 transitions, 470 flow. Second operand 3 states. [2020-10-11 16:39:07,576 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-10-11 16:39:07,576 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 233 of 244 [2020-10-11 16:39:07,576 INFO L71 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2020-10-11 16:39:07,682 INFO L129 PetriNetUnfolder]: 23/476 cut-off events. [2020-10-11 16:39:07,683 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-10-11 16:39:07,686 INFO L80 FinitePrefix]: Finished finitePrefix Result has 520 conditions, 476 events. 23/476 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 898 event pairs, 0 based on Foata normal form. 2/452 useless extension candidates. Maximal degree in co-relation 515. Up to 12 conditions per place. [2020-10-11 16:39:07,688 INFO L132 encePairwiseOnDemand]: 240/244 looper letters, 3 selfloop transitions, 3 changer transitions 0/221 dead transitions. [2020-10-11 16:39:07,688 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 221 places, 221 transitions, 484 flow [2020-10-11 16:39:07,689 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-11 16:39:07,689 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-10-11 16:39:07,692 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 706 transitions. [2020-10-11 16:39:07,693 INFO L551 CegarLoopForPetriNet]: DFA transition density 0.9644808743169399 [2020-10-11 16:39:07,693 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 706 transitions. [2020-10-11 16:39:07,693 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 706 transitions. [2020-10-11 16:39:07,694 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-11 16:39:07,695 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 706 transitions. [2020-10-11 16:39:07,697 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 4 states. [2020-10-11 16:39:07,699 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result 4 states. [2020-10-11 16:39:07,700 INFO L81 ComplementDD]: Finished complementDD. Result 4 states. [2020-10-11 16:39:07,700 INFO L185 Difference]: Start difference. First operand has 219 places, 220 transitions, 470 flow. Second operand 3 states and 706 transitions. [2020-10-11 16:39:07,700 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 221 places, 221 transitions, 484 flow [2020-10-11 16:39:07,703 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 218 places, 221 transitions, 474 flow, removed 0 selfloop flow, removed 3 redundant places. [2020-10-11 16:39:07,708 INFO L241 Difference]: Finished difference. Result has 219 places, 221 transitions, 475 flow [2020-10-11 16:39:07,709 INFO L325 CegarLoopForPetriNet]: {PETRI_ALPHABET=244, PETRI_DIFFERENCE_MINUEND_FLOW=460, PETRI_DIFFERENCE_MINUEND_PLACES=216, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=220, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=217, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=475, PETRI_PLACES=219, PETRI_TRANSITIONS=221} [2020-10-11 16:39:07,710 INFO L341 CegarLoopForPetriNet]: 223 programPoint places, -4 predicate places. [2020-10-11 16:39:07,710 INFO L481 AbstractCegarLoop]: Abstraction has has 219 places, 221 transitions, 475 flow [2020-10-11 16:39:07,710 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-11 16:39:07,710 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-11 16:39:07,711 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-11 16:39:07,711 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-11 16:39:07,711 INFO L429 AbstractCegarLoop]: === Iteration 5 === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-11 16:39:07,711 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-11 16:39:07,712 INFO L82 PathProgramCache]: Analyzing trace with hash 155716678, now seen corresponding path program 1 times [2020-10-11 16:39:07,712 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-11 16:39:07,712 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [529314464] [2020-10-11 16:39:07,713 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-11 16:39:07,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-11 16:39:07,774 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-11 16:39:07,774 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [529314464] [2020-10-11 16:39:07,775 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-11 16:39:07,775 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-11 16:39:07,775 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [584506539] [2020-10-11 16:39:07,775 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-11 16:39:07,775 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-11 16:39:07,776 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-11 16:39:07,776 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-11 16:39:07,846 INFO L506 CegarLoopForPetriNet]: Number of universal loopers: 229 out of 244 [2020-10-11 16:39:07,847 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 219 places, 221 transitions, 475 flow. Second operand 4 states. [2020-10-11 16:39:07,847 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-10-11 16:39:07,848 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 229 of 244 [2020-10-11 16:39:07,848 INFO L71 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2020-10-11 16:39:08,026 INFO L129 PetriNetUnfolder]: 38/784 cut-off events. [2020-10-11 16:39:08,026 INFO L130 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2020-10-11 16:39:08,030 INFO L80 FinitePrefix]: Finished finitePrefix Result has 851 conditions, 784 events. 38/784 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 2760 event pairs, 0 based on Foata normal form. 0/739 useless extension candidates. Maximal degree in co-relation 845. Up to 24 conditions per place. [2020-10-11 16:39:08,033 INFO L132 encePairwiseOnDemand]: 239/244 looper letters, 7 selfloop transitions, 5 changer transitions 0/224 dead transitions. [2020-10-11 16:39:08,033 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 223 places, 224 transitions, 505 flow [2020-10-11 16:39:08,034 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-11 16:39:08,034 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2020-10-11 16:39:08,036 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 1158 transitions. [2020-10-11 16:39:08,037 INFO L551 CegarLoopForPetriNet]: DFA transition density 0.9491803278688524 [2020-10-11 16:39:08,037 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 1158 transitions. [2020-10-11 16:39:08,038 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 1158 transitions. [2020-10-11 16:39:08,039 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-11 16:39:08,039 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 1158 transitions. [2020-10-11 16:39:08,041 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 6 states. [2020-10-11 16:39:08,043 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result 6 states. [2020-10-11 16:39:08,043 INFO L81 ComplementDD]: Finished complementDD. Result 6 states. [2020-10-11 16:39:08,044 INFO L185 Difference]: Start difference. First operand has 219 places, 221 transitions, 475 flow. Second operand 5 states and 1158 transitions. [2020-10-11 16:39:08,044 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 223 places, 224 transitions, 505 flow [2020-10-11 16:39:08,046 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 222 places, 224 transitions, 502 flow, removed 0 selfloop flow, removed 1 redundant places. [2020-10-11 16:39:08,049 INFO L241 Difference]: Finished difference. Result has 225 places, 224 transitions, 502 flow [2020-10-11 16:39:08,050 INFO L325 CegarLoopForPetriNet]: {PETRI_ALPHABET=244, PETRI_DIFFERENCE_MINUEND_FLOW=472, PETRI_DIFFERENCE_MINUEND_PLACES=218, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=221, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=217, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=502, PETRI_PLACES=225, PETRI_TRANSITIONS=224} [2020-10-11 16:39:08,050 INFO L341 CegarLoopForPetriNet]: 223 programPoint places, 2 predicate places. [2020-10-11 16:39:08,050 INFO L481 AbstractCegarLoop]: Abstraction has has 225 places, 224 transitions, 502 flow [2020-10-11 16:39:08,051 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-11 16:39:08,051 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-11 16:39:08,051 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-11 16:39:08,051 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-11 16:39:08,051 INFO L429 AbstractCegarLoop]: === Iteration 6 === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-11 16:39:08,052 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-11 16:39:08,052 INFO L82 PathProgramCache]: Analyzing trace with hash -123679411, now seen corresponding path program 1 times [2020-10-11 16:39:08,052 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-11 16:39:08,052 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1250157272] [2020-10-11 16:39:08,052 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-11 16:39:08,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-11 16:39:08,388 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-11 16:39:08,388 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1250157272] [2020-10-11 16:39:08,388 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-11 16:39:08,388 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2020-10-11 16:39:08,389 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [981449181] [2020-10-11 16:39:08,389 INFO L461 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-10-11 16:39:08,389 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-11 16:39:08,390 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-10-11 16:39:08,390 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=145, Unknown=0, NotChecked=0, Total=182 [2020-10-11 16:39:19,088 INFO L506 CegarLoopForPetriNet]: Number of universal loopers: 188 out of 244 [2020-10-11 16:39:19,090 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 225 places, 224 transitions, 502 flow. Second operand 14 states. [2020-10-11 16:39:19,091 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-10-11 16:39:19,091 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 188 of 244 [2020-10-11 16:39:19,091 INFO L71 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2020-10-11 16:39:20,063 INFO L129 PetriNetUnfolder]: 200/1144 cut-off events. [2020-10-11 16:39:20,064 INFO L130 PetriNetUnfolder]: For 72/72 co-relation queries the response was YES. [2020-10-11 16:39:20,074 INFO L80 FinitePrefix]: Finished finitePrefix Result has 1708 conditions, 1144 events. 200/1144 cut-off events. For 72/72 co-relation queries the response was YES. Maximal size of possible extension queue 45. Compared 5559 event pairs, 84 based on Foata normal form. 2/1102 useless extension candidates. Maximal degree in co-relation 1700. Up to 398 conditions per place. [2020-10-11 16:39:20,083 INFO L132 encePairwiseOnDemand]: 228/244 looper letters, 43 selfloop transitions, 22 changer transitions 0/240 dead transitions. [2020-10-11 16:39:20,084 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 238 places, 240 transitions, 679 flow [2020-10-11 16:39:20,084 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-10-11 16:39:20,084 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2020-10-11 16:39:20,095 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 2697 transitions. [2020-10-11 16:39:20,098 INFO L551 CegarLoopForPetriNet]: DFA transition density 0.789519906323185 [2020-10-11 16:39:20,099 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 2697 transitions. [2020-10-11 16:39:20,099 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 2697 transitions. [2020-10-11 16:39:20,102 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-11 16:39:20,102 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 2697 transitions. [2020-10-11 16:39:20,110 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 15 states. [2020-10-11 16:39:20,119 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result 15 states. [2020-10-11 16:39:20,120 INFO L81 ComplementDD]: Finished complementDD. Result 15 states. [2020-10-11 16:39:20,120 INFO L185 Difference]: Start difference. First operand has 225 places, 224 transitions, 502 flow. Second operand 14 states and 2697 transitions. [2020-10-11 16:39:20,120 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 238 places, 240 transitions, 679 flow [2020-10-11 16:39:20,123 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 238 places, 240 transitions, 679 flow, removed 0 selfloop flow, removed 0 redundant places. [2020-10-11 16:39:20,130 INFO L241 Difference]: Finished difference. Result has 244 places, 238 transitions, 634 flow [2020-10-11 16:39:20,131 INFO L325 CegarLoopForPetriNet]: {PETRI_ALPHABET=244, PETRI_DIFFERENCE_MINUEND_FLOW=502, PETRI_DIFFERENCE_MINUEND_PLACES=225, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=224, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=208, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=634, PETRI_PLACES=244, PETRI_TRANSITIONS=238} [2020-10-11 16:39:20,131 INFO L341 CegarLoopForPetriNet]: 223 programPoint places, 21 predicate places. [2020-10-11 16:39:20,131 INFO L481 AbstractCegarLoop]: Abstraction has has 244 places, 238 transitions, 634 flow [2020-10-11 16:39:20,132 INFO L482 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-10-11 16:39:20,132 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-11 16:39:20,132 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-11 16:39:20,133 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-11 16:39:20,133 INFO L429 AbstractCegarLoop]: === Iteration 7 === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-11 16:39:20,133 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-11 16:39:20,134 INFO L82 PathProgramCache]: Analyzing trace with hash -1649380683, now seen corresponding path program 1 times [2020-10-11 16:39:20,134 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-11 16:39:20,135 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1726972307] [2020-10-11 16:39:20,135 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-11 16:39:20,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-11 16:39:20,713 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-11 16:39:20,713 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1726972307] [2020-10-11 16:39:20,713 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-11 16:39:20,714 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2020-10-11 16:39:20,714 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [348894250] [2020-10-11 16:39:20,714 INFO L461 AbstractCegarLoop]: Interpolant automaton has 17 states [2020-10-11 16:39:20,714 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-11 16:39:20,715 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2020-10-11 16:39:20,715 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=223, Unknown=0, NotChecked=0, Total=272 [2020-10-11 16:39:33,320 INFO L506 CegarLoopForPetriNet]: Number of universal loopers: 184 out of 244 [2020-10-11 16:39:33,322 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 244 places, 238 transitions, 634 flow. Second operand 17 states. [2020-10-11 16:39:33,323 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-10-11 16:39:33,323 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 184 of 244 [2020-10-11 16:39:33,323 INFO L71 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2020-10-11 16:39:34,717 INFO L129 PetriNetUnfolder]: 226/1465 cut-off events. [2020-10-11 16:39:34,718 INFO L130 PetriNetUnfolder]: For 249/253 co-relation queries the response was YES. [2020-10-11 16:39:34,729 INFO L80 FinitePrefix]: Finished finitePrefix Result has 2250 conditions, 1465 events. 226/1465 cut-off events. For 249/253 co-relation queries the response was YES. Maximal size of possible extension queue 47. Compared 7844 event pairs, 78 based on Foata normal form. 4/1396 useless extension candidates. Maximal degree in co-relation 2235. Up to 385 conditions per place. [2020-10-11 16:39:34,736 INFO L132 encePairwiseOnDemand]: 217/244 looper letters, 48 selfloop transitions, 46 changer transitions 0/266 dead transitions. [2020-10-11 16:39:34,736 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 263 places, 266 transitions, 912 flow [2020-10-11 16:39:34,737 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2020-10-11 16:39:34,737 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2020-10-11 16:39:34,746 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 3767 transitions. [2020-10-11 16:39:34,749 INFO L551 CegarLoopForPetriNet]: DFA transition density 0.7719262295081967 [2020-10-11 16:39:34,749 INFO L72 ComplementDD]: Start complementDD. Operand 20 states and 3767 transitions. [2020-10-11 16:39:34,749 INFO L73 IsDeterministic]: Start isDeterministic. Operand 20 states and 3767 transitions. [2020-10-11 16:39:34,753 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-11 16:39:34,753 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 20 states and 3767 transitions. [2020-10-11 16:39:34,761 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 21 states. [2020-10-11 16:39:34,770 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result 21 states. [2020-10-11 16:39:34,770 INFO L81 ComplementDD]: Finished complementDD. Result 21 states. [2020-10-11 16:39:34,770 INFO L185 Difference]: Start difference. First operand has 244 places, 238 transitions, 634 flow. Second operand 20 states and 3767 transitions. [2020-10-11 16:39:34,770 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 263 places, 266 transitions, 912 flow [2020-10-11 16:39:34,779 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 257 places, 266 transitions, 899 flow, removed 1 selfloop flow, removed 6 redundant places. [2020-10-11 16:39:34,784 INFO L241 Difference]: Finished difference. Result has 264 places, 254 transitions, 842 flow [2020-10-11 16:39:34,785 INFO L325 CegarLoopForPetriNet]: {PETRI_ALPHABET=244, PETRI_DIFFERENCE_MINUEND_FLOW=621, PETRI_DIFFERENCE_MINUEND_PLACES=238, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=238, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=32, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=198, PETRI_DIFFERENCE_SUBTRAHEND_STATES=20, PETRI_FLOW=842, PETRI_PLACES=264, PETRI_TRANSITIONS=254} [2020-10-11 16:39:34,785 INFO L341 CegarLoopForPetriNet]: 223 programPoint places, 41 predicate places. [2020-10-11 16:39:34,785 INFO L481 AbstractCegarLoop]: Abstraction has has 264 places, 254 transitions, 842 flow [2020-10-11 16:39:34,786 INFO L482 AbstractCegarLoop]: Interpolant automaton has 17 states. [2020-10-11 16:39:34,786 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-11 16:39:34,786 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-11 16:39:34,786 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-11 16:39:34,786 INFO L429 AbstractCegarLoop]: === Iteration 8 === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-11 16:39:34,787 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-11 16:39:34,787 INFO L82 PathProgramCache]: Analyzing trace with hash -1262693723, now seen corresponding path program 2 times [2020-10-11 16:39:34,787 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-11 16:39:34,787 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [435582138] [2020-10-11 16:39:34,787 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-11 16:39:34,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-11 16:39:35,337 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-11 16:39:35,339 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [435582138] [2020-10-11 16:39:35,339 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-11 16:39:35,339 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2020-10-11 16:39:35,340 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1813965613] [2020-10-11 16:39:35,341 INFO L461 AbstractCegarLoop]: Interpolant automaton has 17 states [2020-10-11 16:39:35,341 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-11 16:39:35,341 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2020-10-11 16:39:35,342 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=225, Unknown=0, NotChecked=0, Total=272 [2020-10-11 16:39:51,430 INFO L506 CegarLoopForPetriNet]: Number of universal loopers: 184 out of 244 [2020-10-11 16:39:51,432 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 264 places, 254 transitions, 842 flow. Second operand 17 states. [2020-10-11 16:39:51,433 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-10-11 16:39:51,433 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 184 of 244 [2020-10-11 16:39:51,433 INFO L71 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2020-10-11 16:39:52,854 INFO L129 PetriNetUnfolder]: 224/1441 cut-off events. [2020-10-11 16:39:52,855 INFO L130 PetriNetUnfolder]: For 509/511 co-relation queries the response was YES. [2020-10-11 16:39:52,866 INFO L80 FinitePrefix]: Finished finitePrefix Result has 2518 conditions, 1441 events. 224/1441 cut-off events. For 509/511 co-relation queries the response was YES. Maximal size of possible extension queue 47. Compared 7646 event pairs, 79 based on Foata normal form. 1/1387 useless extension candidates. Maximal degree in co-relation 2496. Up to 387 conditions per place. [2020-10-11 16:39:52,872 INFO L132 encePairwiseOnDemand]: 217/244 looper letters, 47 selfloop transitions, 51 changer transitions 0/270 dead transitions. [2020-10-11 16:39:52,872 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 282 places, 270 transitions, 1112 flow [2020-10-11 16:39:52,873 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-10-11 16:39:52,873 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2020-10-11 16:39:52,881 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 3578 transitions. [2020-10-11 16:39:52,882 INFO L551 CegarLoopForPetriNet]: DFA transition density 0.771786022433132 [2020-10-11 16:39:52,883 INFO L72 ComplementDD]: Start complementDD. Operand 19 states and 3578 transitions. [2020-10-11 16:39:52,883 INFO L73 IsDeterministic]: Start isDeterministic. Operand 19 states and 3578 transitions. [2020-10-11 16:39:52,886 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-11 16:39:52,886 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 19 states and 3578 transitions. [2020-10-11 16:39:52,892 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 20 states. [2020-10-11 16:39:52,900 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result 20 states. [2020-10-11 16:39:52,900 INFO L81 ComplementDD]: Finished complementDD. Result 20 states. [2020-10-11 16:39:52,900 INFO L185 Difference]: Start difference. First operand has 264 places, 254 transitions, 842 flow. Second operand 19 states and 3578 transitions. [2020-10-11 16:39:52,900 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 282 places, 270 transitions, 1112 flow [2020-10-11 16:39:52,906 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 273 places, 270 transitions, 1070 flow, removed 12 selfloop flow, removed 9 redundant places. [2020-10-11 16:39:52,911 INFO L241 Difference]: Finished difference. Result has 278 places, 260 transitions, 1001 flow [2020-10-11 16:39:52,911 INFO L325 CegarLoopForPetriNet]: {PETRI_ALPHABET=244, PETRI_DIFFERENCE_MINUEND_FLOW=804, PETRI_DIFFERENCE_MINUEND_PLACES=255, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=254, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=45, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=204, PETRI_DIFFERENCE_SUBTRAHEND_STATES=19, PETRI_FLOW=1001, PETRI_PLACES=278, PETRI_TRANSITIONS=260} [2020-10-11 16:39:52,912 INFO L341 CegarLoopForPetriNet]: 223 programPoint places, 55 predicate places. [2020-10-11 16:39:52,912 INFO L481 AbstractCegarLoop]: Abstraction has has 278 places, 260 transitions, 1001 flow [2020-10-11 16:39:52,912 INFO L482 AbstractCegarLoop]: Interpolant automaton has 17 states. [2020-10-11 16:39:52,912 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-11 16:39:52,912 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-11 16:39:52,912 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-11 16:39:52,913 INFO L429 AbstractCegarLoop]: === Iteration 9 === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-11 16:39:52,913 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-11 16:39:52,913 INFO L82 PathProgramCache]: Analyzing trace with hash -1136874111, now seen corresponding path program 3 times [2020-10-11 16:39:52,913 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-11 16:39:52,913 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1630331305] [2020-10-11 16:39:52,914 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-11 16:39:52,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-11 16:39:53,361 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-11 16:39:53,361 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1630331305] [2020-10-11 16:39:53,361 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-11 16:39:53,362 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2020-10-11 16:39:53,362 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [30708849] [2020-10-11 16:39:53,363 INFO L461 AbstractCegarLoop]: Interpolant automaton has 17 states [2020-10-11 16:39:53,363 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-11 16:39:53,363 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2020-10-11 16:39:53,363 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=225, Unknown=0, NotChecked=0, Total=272 [2020-10-11 16:40:10,027 INFO L506 CegarLoopForPetriNet]: Number of universal loopers: 184 out of 244 [2020-10-11 16:40:10,029 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 278 places, 260 transitions, 1001 flow. Second operand 17 states. [2020-10-11 16:40:10,029 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-10-11 16:40:10,029 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 184 of 244 [2020-10-11 16:40:10,030 INFO L71 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2020-10-11 16:40:11,415 INFO L129 PetriNetUnfolder]: 223/1432 cut-off events. [2020-10-11 16:40:11,415 INFO L130 PetriNetUnfolder]: For 774/776 co-relation queries the response was YES. [2020-10-11 16:40:11,428 INFO L80 FinitePrefix]: Finished finitePrefix Result has 2654 conditions, 1432 events. 223/1432 cut-off events. For 774/776 co-relation queries the response was YES. Maximal size of possible extension queue 47. Compared 7775 event pairs, 80 based on Foata normal form. 1/1378 useless extension candidates. Maximal degree in co-relation 2629. Up to 379 conditions per place. [2020-10-11 16:40:11,437 INFO L132 encePairwiseOnDemand]: 221/244 looper letters, 43 selfloop transitions, 47 changer transitions 0/262 dead transitions. [2020-10-11 16:40:11,437 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 292 places, 262 transitions, 1177 flow [2020-10-11 16:40:11,438 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-10-11 16:40:11,438 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2020-10-11 16:40:11,445 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 3192 transitions. [2020-10-11 16:40:11,446 INFO L551 CegarLoopForPetriNet]: DFA transition density 0.7695274831243973 [2020-10-11 16:40:11,446 INFO L72 ComplementDD]: Start complementDD. Operand 17 states and 3192 transitions. [2020-10-11 16:40:11,446 INFO L73 IsDeterministic]: Start isDeterministic. Operand 17 states and 3192 transitions. [2020-10-11 16:40:11,449 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-11 16:40:11,449 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 17 states and 3192 transitions. [2020-10-11 16:40:11,455 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 18 states. [2020-10-11 16:40:11,463 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result 18 states. [2020-10-11 16:40:11,463 INFO L81 ComplementDD]: Finished complementDD. Result 18 states. [2020-10-11 16:40:11,464 INFO L185 Difference]: Start difference. First operand has 278 places, 260 transitions, 1001 flow. Second operand 17 states and 3192 transitions. [2020-10-11 16:40:11,464 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 292 places, 262 transitions, 1177 flow [2020-10-11 16:40:11,470 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 278 places, 262 transitions, 1117 flow, removed 3 selfloop flow, removed 14 redundant places. [2020-10-11 16:40:11,475 INFO L241 Difference]: Finished difference. Result has 278 places, 256 transitions, 1007 flow [2020-10-11 16:40:11,475 INFO L325 CegarLoopForPetriNet]: {PETRI_ALPHABET=244, PETRI_DIFFERENCE_MINUEND_FLOW=913, PETRI_DIFFERENCE_MINUEND_PLACES=262, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=256, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=47, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=209, PETRI_DIFFERENCE_SUBTRAHEND_STATES=17, PETRI_FLOW=1007, PETRI_PLACES=278, PETRI_TRANSITIONS=256} [2020-10-11 16:40:11,476 INFO L341 CegarLoopForPetriNet]: 223 programPoint places, 55 predicate places. [2020-10-11 16:40:11,476 INFO L481 AbstractCegarLoop]: Abstraction has has 278 places, 256 transitions, 1007 flow [2020-10-11 16:40:11,476 INFO L482 AbstractCegarLoop]: Interpolant automaton has 17 states. [2020-10-11 16:40:11,476 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-11 16:40:11,476 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-11 16:40:11,477 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-11 16:40:11,477 INFO L429 AbstractCegarLoop]: === Iteration 10 === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-11 16:40:11,477 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-11 16:40:11,477 INFO L82 PathProgramCache]: Analyzing trace with hash -1696868621, now seen corresponding path program 1 times [2020-10-11 16:40:11,477 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-11 16:40:11,478 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2066994469] [2020-10-11 16:40:11,479 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-11 16:40:11,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-11 16:40:12,580 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-11 16:40:12,581 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2066994469] [2020-10-11 16:40:12,581 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-11 16:40:12,581 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2020-10-11 16:40:12,581 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [334477586] [2020-10-11 16:40:12,582 INFO L461 AbstractCegarLoop]: Interpolant automaton has 26 states [2020-10-11 16:40:12,582 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-11 16:40:12,582 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2020-10-11 16:40:12,582 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=72, Invalid=578, Unknown=0, NotChecked=0, Total=650 [2020-10-11 16:40:49,940 INFO L506 CegarLoopForPetriNet]: Number of universal loopers: 166 out of 244 [2020-10-11 16:40:49,942 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 278 places, 256 transitions, 1007 flow. Second operand 26 states. [2020-10-11 16:40:49,943 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-10-11 16:40:49,943 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 166 of 244 [2020-10-11 16:40:49,943 INFO L71 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2020-10-11 16:40:52,782 INFO L129 PetriNetUnfolder]: 189/1321 cut-off events. [2020-10-11 16:40:52,783 INFO L130 PetriNetUnfolder]: For 801/804 co-relation queries the response was YES. [2020-10-11 16:40:52,792 INFO L80 FinitePrefix]: Finished finitePrefix Result has 2461 conditions, 1321 events. 189/1321 cut-off events. For 801/804 co-relation queries the response was YES. Maximal size of possible extension queue 43. Compared 6921 event pairs, 74 based on Foata normal form. 3/1272 useless extension candidates. Maximal degree in co-relation 2439. Up to 390 conditions per place. [2020-10-11 16:40:52,798 INFO L132 encePairwiseOnDemand]: 214/244 looper letters, 76 selfloop transitions, 45 changer transitions 0/286 dead transitions. [2020-10-11 16:40:52,798 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 303 places, 286 transitions, 1353 flow [2020-10-11 16:40:52,799 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2020-10-11 16:40:52,799 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26 states. [2020-10-11 16:40:52,804 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 4423 transitions. [2020-10-11 16:40:52,806 INFO L551 CegarLoopForPetriNet]: DFA transition density 0.6971941992433796 [2020-10-11 16:40:52,806 INFO L72 ComplementDD]: Start complementDD. Operand 26 states and 4423 transitions. [2020-10-11 16:40:52,806 INFO L73 IsDeterministic]: Start isDeterministic. Operand 26 states and 4423 transitions. [2020-10-11 16:40:52,808 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-11 16:40:52,809 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 26 states and 4423 transitions. [2020-10-11 16:40:52,814 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 27 states. [2020-10-11 16:40:52,822 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result 27 states. [2020-10-11 16:40:52,823 INFO L81 ComplementDD]: Finished complementDD. Result 27 states. [2020-10-11 16:40:52,823 INFO L185 Difference]: Start difference. First operand has 278 places, 256 transitions, 1007 flow. Second operand 26 states and 4423 transitions. [2020-10-11 16:40:52,823 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 303 places, 286 transitions, 1353 flow [2020-10-11 16:40:52,829 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 288 places, 286 transitions, 1263 flow, removed 0 selfloop flow, removed 15 redundant places. [2020-10-11 16:40:52,834 INFO L241 Difference]: Finished difference. Result has 299 places, 276 transitions, 1171 flow [2020-10-11 16:40:52,834 INFO L325 CegarLoopForPetriNet]: {PETRI_ALPHABET=244, PETRI_DIFFERENCE_MINUEND_FLOW=917, PETRI_DIFFERENCE_MINUEND_PLACES=263, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=256, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=26, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=220, PETRI_DIFFERENCE_SUBTRAHEND_STATES=26, PETRI_FLOW=1171, PETRI_PLACES=299, PETRI_TRANSITIONS=276} [2020-10-11 16:40:52,835 INFO L341 CegarLoopForPetriNet]: 223 programPoint places, 76 predicate places. [2020-10-11 16:40:52,835 INFO L481 AbstractCegarLoop]: Abstraction has has 299 places, 276 transitions, 1171 flow [2020-10-11 16:40:52,835 INFO L482 AbstractCegarLoop]: Interpolant automaton has 26 states. [2020-10-11 16:40:52,835 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-11 16:40:52,835 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-11 16:40:52,835 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-11 16:40:52,836 INFO L429 AbstractCegarLoop]: === Iteration 11 === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-11 16:40:52,836 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-11 16:40:52,836 INFO L82 PathProgramCache]: Analyzing trace with hash -1509945509, now seen corresponding path program 1 times [2020-10-11 16:40:52,836 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-11 16:40:52,837 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1268035721] [2020-10-11 16:40:52,837 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-11 16:40:52,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-11 16:40:54,272 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-11 16:40:54,273 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1268035721] [2020-10-11 16:40:54,273 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-11 16:40:54,273 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2020-10-11 16:40:54,273 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [724089538] [2020-10-11 16:40:54,274 INFO L461 AbstractCegarLoop]: Interpolant automaton has 28 states [2020-10-11 16:40:54,274 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-11 16:40:54,274 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2020-10-11 16:40:54,275 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=79, Invalid=677, Unknown=0, NotChecked=0, Total=756 [2020-10-11 16:41:56,811 INFO L506 CegarLoopForPetriNet]: Number of universal loopers: 164 out of 244 [2020-10-11 16:41:56,813 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 299 places, 276 transitions, 1171 flow. Second operand 28 states. [2020-10-11 16:41:56,814 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-10-11 16:41:56,814 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 164 of 244 [2020-10-11 16:41:56,814 INFO L71 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2020-10-11 16:41:57,733 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 50 [2020-10-11 16:41:58,598 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 48 [2020-10-11 16:42:00,000 INFO L129 PetriNetUnfolder]: 193/1420 cut-off events. [2020-10-11 16:42:00,000 INFO L130 PetriNetUnfolder]: For 893/896 co-relation queries the response was YES. [2020-10-11 16:42:00,007 INFO L80 FinitePrefix]: Finished finitePrefix Result has 2661 conditions, 1420 events. 193/1420 cut-off events. For 893/896 co-relation queries the response was YES. Maximal size of possible extension queue 42. Compared 7564 event pairs, 76 based on Foata normal form. 2/1365 useless extension candidates. Maximal degree in co-relation 2628. Up to 313 conditions per place. [2020-10-11 16:42:00,012 INFO L132 encePairwiseOnDemand]: 213/244 looper letters, 72 selfloop transitions, 58 changer transitions 0/294 dead transitions. [2020-10-11 16:42:00,012 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 325 places, 294 transitions, 1487 flow [2020-10-11 16:42:00,013 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2020-10-11 16:42:00,013 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27 states. [2020-10-11 16:42:00,016 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 4526 transitions. [2020-10-11 16:42:00,018 INFO L551 CegarLoopForPetriNet]: DFA transition density 0.6870066788099575 [2020-10-11 16:42:00,018 INFO L72 ComplementDD]: Start complementDD. Operand 27 states and 4526 transitions. [2020-10-11 16:42:00,018 INFO L73 IsDeterministic]: Start isDeterministic. Operand 27 states and 4526 transitions. [2020-10-11 16:42:00,019 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-11 16:42:00,020 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 27 states and 4526 transitions. [2020-10-11 16:42:00,024 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 28 states. [2020-10-11 16:42:00,030 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result 28 states. [2020-10-11 16:42:00,031 INFO L81 ComplementDD]: Finished complementDD. Result 28 states. [2020-10-11 16:42:00,031 INFO L185 Difference]: Start difference. First operand has 299 places, 276 transitions, 1171 flow. Second operand 27 states and 4526 transitions. [2020-10-11 16:42:00,031 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 325 places, 294 transitions, 1487 flow [2020-10-11 16:42:00,038 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 312 places, 294 transitions, 1426 flow, removed 14 selfloop flow, removed 13 redundant places. [2020-10-11 16:42:00,043 INFO L241 Difference]: Finished difference. Result has 317 places, 283 transitions, 1304 flow [2020-10-11 16:42:00,044 INFO L325 CegarLoopForPetriNet]: {PETRI_ALPHABET=244, PETRI_DIFFERENCE_MINUEND_FLOW=1110, PETRI_DIFFERENCE_MINUEND_PLACES=286, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=276, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=52, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=220, PETRI_DIFFERENCE_SUBTRAHEND_STATES=27, PETRI_FLOW=1304, PETRI_PLACES=317, PETRI_TRANSITIONS=283} [2020-10-11 16:42:00,044 INFO L341 CegarLoopForPetriNet]: 223 programPoint places, 94 predicate places. [2020-10-11 16:42:00,044 INFO L481 AbstractCegarLoop]: Abstraction has has 317 places, 283 transitions, 1304 flow [2020-10-11 16:42:00,044 INFO L482 AbstractCegarLoop]: Interpolant automaton has 28 states. [2020-10-11 16:42:00,044 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-11 16:42:00,044 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-11 16:42:00,045 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-11 16:42:00,045 INFO L429 AbstractCegarLoop]: === Iteration 12 === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-11 16:42:00,045 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-11 16:42:00,045 INFO L82 PathProgramCache]: Analyzing trace with hash 1842310555, now seen corresponding path program 2 times [2020-10-11 16:42:00,046 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-11 16:42:00,046 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1841245463] [2020-10-11 16:42:00,046 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-11 16:42:00,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-11 16:42:01,654 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-11 16:42:01,655 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1841245463] [2020-10-11 16:42:01,655 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-11 16:42:01,655 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2020-10-11 16:42:01,655 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1326209066] [2020-10-11 16:42:01,656 INFO L461 AbstractCegarLoop]: Interpolant automaton has 28 states [2020-10-11 16:42:01,656 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-11 16:42:01,656 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2020-10-11 16:42:01,656 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=678, Unknown=0, NotChecked=0, Total=756 [2020-10-11 16:43:12,682 INFO L506 CegarLoopForPetriNet]: Number of universal loopers: 164 out of 244 [2020-10-11 16:43:12,685 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 317 places, 283 transitions, 1304 flow. Second operand 28 states. [2020-10-11 16:43:12,685 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-10-11 16:43:12,685 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 164 of 244 [2020-10-11 16:43:12,686 INFO L71 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2020-10-11 16:43:13,677 WARN L193 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 49 [2020-10-11 16:43:13,842 WARN L193 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 50 [2020-10-11 16:43:14,462 WARN L193 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 44 [2020-10-11 16:43:14,651 WARN L193 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 46 [2020-10-11 16:43:14,903 WARN L193 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 46 [2020-10-11 16:43:15,097 WARN L193 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 48 [2020-10-11 16:43:15,904 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 59 [2020-10-11 16:43:16,045 WARN L193 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 62 [2020-10-11 16:43:16,601 INFO L129 PetriNetUnfolder]: 193/1439 cut-off events. [2020-10-11 16:43:16,601 INFO L130 PetriNetUnfolder]: For 945/947 co-relation queries the response was YES. [2020-10-11 16:43:16,609 INFO L80 FinitePrefix]: Finished finitePrefix Result has 2780 conditions, 1439 events. 193/1439 cut-off events. For 945/947 co-relation queries the response was YES. Maximal size of possible extension queue 42. Compared 7787 event pairs, 76 based on Foata normal form. 1/1384 useless extension candidates. Maximal degree in co-relation 2742. Up to 316 conditions per place. [2020-10-11 16:43:16,614 INFO L132 encePairwiseOnDemand]: 212/244 looper letters, 71 selfloop transitions, 63 changer transitions 0/298 dead transitions. [2020-10-11 16:43:16,614 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 345 places, 298 transitions, 1631 flow [2020-10-11 16:43:16,617 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2020-10-11 16:43:16,617 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29 states. [2020-10-11 16:43:16,620 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 4852 transitions. [2020-10-11 16:43:16,622 INFO L551 CegarLoopForPetriNet]: DFA transition density 0.6856981345392877 [2020-10-11 16:43:16,622 INFO L72 ComplementDD]: Start complementDD. Operand 29 states and 4852 transitions. [2020-10-11 16:43:16,622 INFO L73 IsDeterministic]: Start isDeterministic. Operand 29 states and 4852 transitions. [2020-10-11 16:43:16,623 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-11 16:43:16,623 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 29 states and 4852 transitions. [2020-10-11 16:43:16,629 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 30 states. [2020-10-11 16:43:16,636 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result 30 states. [2020-10-11 16:43:16,636 INFO L81 ComplementDD]: Finished complementDD. Result 30 states. [2020-10-11 16:43:16,636 INFO L185 Difference]: Start difference. First operand has 317 places, 283 transitions, 1304 flow. Second operand 29 states and 4852 transitions. [2020-10-11 16:43:16,636 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 345 places, 298 transitions, 1631 flow [2020-10-11 16:43:16,643 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 325 places, 298 transitions, 1542 flow, removed 5 selfloop flow, removed 20 redundant places. [2020-10-11 16:43:16,649 INFO L241 Difference]: Finished difference. Result has 329 places, 288 transitions, 1423 flow [2020-10-11 16:43:16,650 INFO L325 CegarLoopForPetriNet]: {PETRI_ALPHABET=244, PETRI_DIFFERENCE_MINUEND_FLOW=1217, PETRI_DIFFERENCE_MINUEND_PLACES=297, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=283, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=58, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=222, PETRI_DIFFERENCE_SUBTRAHEND_STATES=29, PETRI_FLOW=1423, PETRI_PLACES=329, PETRI_TRANSITIONS=288} [2020-10-11 16:43:16,650 INFO L341 CegarLoopForPetriNet]: 223 programPoint places, 106 predicate places. [2020-10-11 16:43:16,650 INFO L481 AbstractCegarLoop]: Abstraction has has 329 places, 288 transitions, 1423 flow [2020-10-11 16:43:16,650 INFO L482 AbstractCegarLoop]: Interpolant automaton has 28 states. [2020-10-11 16:43:16,650 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-11 16:43:16,650 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-11 16:43:16,651 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-11 16:43:16,651 INFO L429 AbstractCegarLoop]: === Iteration 13 === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-11 16:43:16,651 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-11 16:43:16,651 INFO L82 PathProgramCache]: Analyzing trace with hash -1401636619, now seen corresponding path program 3 times [2020-10-11 16:43:16,652 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-11 16:43:16,652 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1899058355] [2020-10-11 16:43:16,652 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-11 16:43:16,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-11 16:43:18,445 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-11 16:43:18,446 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1899058355] [2020-10-11 16:43:18,446 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-11 16:43:18,446 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2020-10-11 16:43:18,446 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [209773561] [2020-10-11 16:43:18,447 INFO L461 AbstractCegarLoop]: Interpolant automaton has 28 states [2020-10-11 16:43:18,447 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-11 16:43:18,447 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2020-10-11 16:43:18,448 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=678, Unknown=0, NotChecked=0, Total=756 [2020-10-11 16:44:23,500 INFO L506 CegarLoopForPetriNet]: Number of universal loopers: 164 out of 244 [2020-10-11 16:44:23,502 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 329 places, 288 transitions, 1423 flow. Second operand 28 states. [2020-10-11 16:44:23,502 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-10-11 16:44:23,502 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 164 of 244 [2020-10-11 16:44:23,502 INFO L71 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2020-10-11 16:44:24,451 WARN L193 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 48 [2020-10-11 16:44:24,618 WARN L193 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 49 [2020-10-11 16:44:24,799 WARN L193 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 50 [2020-10-11 16:44:24,957 WARN L193 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 46 [2020-10-11 16:44:25,482 WARN L193 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 44 [2020-10-11 16:44:25,686 WARN L193 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 46 [2020-10-11 16:44:25,969 WARN L193 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 46 [2020-10-11 16:44:26,169 WARN L193 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 48 [2020-10-11 16:44:26,349 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 47 [2020-10-11 16:44:26,483 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 48 [2020-10-11 16:44:26,929 WARN L193 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 58 [2020-10-11 16:44:27,082 WARN L193 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 61 [2020-10-11 16:44:27,256 WARN L193 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 64 [2020-10-11 16:44:27,636 INFO L129 PetriNetUnfolder]: 135/1108 cut-off events. [2020-10-11 16:44:27,637 INFO L130 PetriNetUnfolder]: For 947/950 co-relation queries the response was YES. [2020-10-11 16:44:27,645 INFO L80 FinitePrefix]: Finished finitePrefix Result has 2224 conditions, 1108 events. 135/1108 cut-off events. For 947/950 co-relation queries the response was YES. Maximal size of possible extension queue 22. Compared 5254 event pairs, 46 based on Foata normal form. 2/1067 useless extension candidates. Maximal degree in co-relation 2183. Up to 185 conditions per place. [2020-10-11 16:44:27,648 INFO L132 encePairwiseOnDemand]: 214/244 looper letters, 64 selfloop transitions, 61 changer transitions 0/281 dead transitions. [2020-10-11 16:44:27,648 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 348 places, 281 transitions, 1643 flow [2020-10-11 16:44:27,650 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2020-10-11 16:44:27,650 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28 states. [2020-10-11 16:44:27,653 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 4674 transitions. [2020-10-11 16:44:27,654 INFO L551 CegarLoopForPetriNet]: DFA transition density 0.6841334894613583 [2020-10-11 16:44:27,655 INFO L72 ComplementDD]: Start complementDD. Operand 28 states and 4674 transitions. [2020-10-11 16:44:27,655 INFO L73 IsDeterministic]: Start isDeterministic. Operand 28 states and 4674 transitions. [2020-10-11 16:44:27,656 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-11 16:44:27,656 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 28 states and 4674 transitions. [2020-10-11 16:44:27,661 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 29 states. [2020-10-11 16:44:27,668 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result 29 states. [2020-10-11 16:44:27,668 INFO L81 ComplementDD]: Finished complementDD. Result 29 states. [2020-10-11 16:44:27,668 INFO L185 Difference]: Start difference. First operand has 329 places, 288 transitions, 1423 flow. Second operand 28 states and 4674 transitions. [2020-10-11 16:44:27,668 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 348 places, 281 transitions, 1643 flow [2020-10-11 16:44:27,677 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 316 places, 281 transitions, 1520 flow, removed 3 selfloop flow, removed 32 redundant places. [2020-10-11 16:44:27,681 INFO L241 Difference]: Finished difference. Result has 316 places, 277 transitions, 1384 flow [2020-10-11 16:44:27,682 INFO L325 CegarLoopForPetriNet]: {PETRI_ALPHABET=244, PETRI_DIFFERENCE_MINUEND_FLOW=1262, PETRI_DIFFERENCE_MINUEND_PLACES=289, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=277, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=61, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=216, PETRI_DIFFERENCE_SUBTRAHEND_STATES=28, PETRI_FLOW=1384, PETRI_PLACES=316, PETRI_TRANSITIONS=277} [2020-10-11 16:44:27,682 INFO L341 CegarLoopForPetriNet]: 223 programPoint places, 93 predicate places. [2020-10-11 16:44:27,682 INFO L481 AbstractCegarLoop]: Abstraction has has 316 places, 277 transitions, 1384 flow [2020-10-11 16:44:27,682 INFO L482 AbstractCegarLoop]: Interpolant automaton has 28 states. [2020-10-11 16:44:27,683 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-11 16:44:27,683 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-11 16:44:27,683 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-10-11 16:44:27,683 INFO L429 AbstractCegarLoop]: === Iteration 14 === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-11 16:44:27,683 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-11 16:44:27,684 INFO L82 PathProgramCache]: Analyzing trace with hash 859184451, now seen corresponding path program 1 times [2020-10-11 16:44:27,684 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-11 16:44:27,684 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [488981650] [2020-10-11 16:44:27,684 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-11 16:44:27,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-11 16:44:27,774 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-11 16:44:27,778 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [488981650] [2020-10-11 16:44:27,779 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-11 16:44:27,779 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-11 16:44:27,779 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1757120758] [2020-10-11 16:44:27,779 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-11 16:44:27,780 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-11 16:44:27,780 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-11 16:44:27,780 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-11 16:44:27,878 INFO L506 CegarLoopForPetriNet]: Number of universal loopers: 230 out of 244 [2020-10-11 16:44:27,878 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 316 places, 277 transitions, 1384 flow. Second operand 3 states. [2020-10-11 16:44:27,879 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-10-11 16:44:27,879 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 230 of 244 [2020-10-11 16:44:27,879 INFO L71 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2020-10-11 16:44:28,024 INFO L129 PetriNetUnfolder]: 50/912 cut-off events. [2020-10-11 16:44:28,024 INFO L130 PetriNetUnfolder]: For 614/619 co-relation queries the response was YES. [2020-10-11 16:44:28,027 INFO L80 FinitePrefix]: Finished finitePrefix Result has 1618 conditions, 912 events. 50/912 cut-off events. For 614/619 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 4030 event pairs, 5 based on Foata normal form. 26/905 useless extension candidates. Maximal degree in co-relation 1583. Up to 26 conditions per place. [2020-10-11 16:44:28,029 INFO L132 encePairwiseOnDemand]: 238/244 looper letters, 2 selfloop transitions, 6 changer transitions 0/275 dead transitions. [2020-10-11 16:44:28,030 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 318 places, 275 transitions, 1382 flow [2020-10-11 16:44:28,031 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-11 16:44:28,031 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-10-11 16:44:28,031 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 701 transitions. [2020-10-11 16:44:28,032 INFO L551 CegarLoopForPetriNet]: DFA transition density 0.9576502732240437 [2020-10-11 16:44:28,032 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 701 transitions. [2020-10-11 16:44:28,032 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 701 transitions. [2020-10-11 16:44:28,032 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-11 16:44:28,032 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 701 transitions. [2020-10-11 16:44:28,033 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 4 states. [2020-10-11 16:44:28,033 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result 4 states. [2020-10-11 16:44:28,033 INFO L81 ComplementDD]: Finished complementDD. Result 4 states. [2020-10-11 16:44:28,033 INFO L185 Difference]: Start difference. First operand has 316 places, 277 transitions, 1384 flow. Second operand 3 states and 701 transitions. [2020-10-11 16:44:28,033 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 318 places, 275 transitions, 1382 flow [2020-10-11 16:44:28,039 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 292 places, 275 transitions, 1271 flow, removed 2 selfloop flow, removed 26 redundant places. [2020-10-11 16:44:28,042 INFO L241 Difference]: Finished difference. Result has 292 places, 275 transitions, 1267 flow [2020-10-11 16:44:28,043 INFO L325 CegarLoopForPetriNet]: {PETRI_ALPHABET=244, PETRI_DIFFERENCE_MINUEND_FLOW=1255, PETRI_DIFFERENCE_MINUEND_PLACES=290, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=275, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=269, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1267, PETRI_PLACES=292, PETRI_TRANSITIONS=275} [2020-10-11 16:44:28,043 INFO L341 CegarLoopForPetriNet]: 223 programPoint places, 69 predicate places. [2020-10-11 16:44:28,043 INFO L481 AbstractCegarLoop]: Abstraction has has 292 places, 275 transitions, 1267 flow [2020-10-11 16:44:28,043 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-11 16:44:28,043 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-11 16:44:28,043 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-11 16:44:28,043 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-10-11 16:44:28,044 INFO L429 AbstractCegarLoop]: === Iteration 15 === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-11 16:44:28,044 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-11 16:44:28,044 INFO L82 PathProgramCache]: Analyzing trace with hash -1665884962, now seen corresponding path program 1 times [2020-10-11 16:44:28,044 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-11 16:44:28,045 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [120584341] [2020-10-11 16:44:28,045 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-11 16:44:28,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-11 16:44:29,716 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-11 16:44:29,717 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [120584341] [2020-10-11 16:44:29,717 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-11 16:44:29,717 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2020-10-11 16:44:29,717 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1990018255] [2020-10-11 16:44:29,718 INFO L461 AbstractCegarLoop]: Interpolant automaton has 26 states [2020-10-11 16:44:29,718 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-11 16:44:29,718 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2020-10-11 16:44:29,718 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=95, Invalid=555, Unknown=0, NotChecked=0, Total=650 [2020-10-11 16:45:25,374 INFO L506 CegarLoopForPetriNet]: Number of universal loopers: 174 out of 244 [2020-10-11 16:45:25,377 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 292 places, 275 transitions, 1267 flow. Second operand 26 states. [2020-10-11 16:45:25,377 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-10-11 16:45:25,377 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 174 of 244 [2020-10-11 16:45:25,377 INFO L71 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2020-10-11 16:45:26,389 WARN L193 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 42 [2020-10-11 16:45:26,548 WARN L193 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 44 [2020-10-11 16:45:26,758 WARN L193 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 46 [2020-10-11 16:45:26,933 WARN L193 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 44 [2020-10-11 16:45:27,108 WARN L193 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 46 [2020-10-11 16:45:27,295 WARN L193 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 52 [2020-10-11 16:45:27,443 WARN L193 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 50 [2020-10-11 16:45:28,208 WARN L193 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 53 [2020-10-11 16:45:28,398 WARN L193 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 57 [2020-10-11 16:45:28,672 WARN L193 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 57 [2020-10-11 16:45:29,203 INFO L129 PetriNetUnfolder]: 86/1015 cut-off events. [2020-10-11 16:45:29,204 INFO L130 PetriNetUnfolder]: For 869/877 co-relation queries the response was YES. [2020-10-11 16:45:29,207 INFO L80 FinitePrefix]: Finished finitePrefix Result has 2077 conditions, 1015 events. 86/1015 cut-off events. For 869/877 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 4598 event pairs, 8 based on Foata normal form. 5/980 useless extension candidates. Maximal degree in co-relation 2042. Up to 110 conditions per place. [2020-10-11 16:45:29,211 INFO L132 encePairwiseOnDemand]: 213/244 looper letters, 72 selfloop transitions, 58 changer transitions 0/295 dead transitions. [2020-10-11 16:45:29,211 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 318 places, 295 transitions, 1643 flow [2020-10-11 16:45:29,213 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2020-10-11 16:45:29,213 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27 states. [2020-10-11 16:45:29,216 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 4786 transitions. [2020-10-11 16:45:29,218 INFO L551 CegarLoopForPetriNet]: DFA transition density 0.7264723740133576 [2020-10-11 16:45:29,218 INFO L72 ComplementDD]: Start complementDD. Operand 27 states and 4786 transitions. [2020-10-11 16:45:29,218 INFO L73 IsDeterministic]: Start isDeterministic. Operand 27 states and 4786 transitions. [2020-10-11 16:45:29,219 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-11 16:45:29,219 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 27 states and 4786 transitions. [2020-10-11 16:45:29,223 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 28 states. [2020-10-11 16:45:29,230 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result 28 states. [2020-10-11 16:45:29,230 INFO L81 ComplementDD]: Finished complementDD. Result 28 states. [2020-10-11 16:45:29,230 INFO L185 Difference]: Start difference. First operand has 292 places, 275 transitions, 1267 flow. Second operand 27 states and 4786 transitions. [2020-10-11 16:45:29,230 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 318 places, 295 transitions, 1643 flow [2020-10-11 16:45:29,238 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 317 places, 295 transitions, 1637 flow, removed 0 selfloop flow, removed 1 redundant places. [2020-10-11 16:45:29,243 INFO L241 Difference]: Finished difference. Result has 323 places, 283 transitions, 1439 flow [2020-10-11 16:45:29,244 INFO L325 CegarLoopForPetriNet]: {PETRI_ALPHABET=244, PETRI_DIFFERENCE_MINUEND_FLOW=1261, PETRI_DIFFERENCE_MINUEND_PLACES=291, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=275, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=50, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=218, PETRI_DIFFERENCE_SUBTRAHEND_STATES=27, PETRI_FLOW=1439, PETRI_PLACES=323, PETRI_TRANSITIONS=283} [2020-10-11 16:45:29,244 INFO L341 CegarLoopForPetriNet]: 223 programPoint places, 100 predicate places. [2020-10-11 16:45:29,244 INFO L481 AbstractCegarLoop]: Abstraction has has 323 places, 283 transitions, 1439 flow [2020-10-11 16:45:29,244 INFO L482 AbstractCegarLoop]: Interpolant automaton has 26 states. [2020-10-11 16:45:29,245 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-11 16:45:29,245 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-11 16:45:29,245 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-10-11 16:45:29,245 INFO L429 AbstractCegarLoop]: === Iteration 16 === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-11 16:45:29,245 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-11 16:45:29,246 INFO L82 PathProgramCache]: Analyzing trace with hash 1477363163, now seen corresponding path program 1 times [2020-10-11 16:45:29,246 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-11 16:45:29,246 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [149227289] [2020-10-11 16:45:29,246 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-11 16:45:29,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-11 16:45:30,081 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 45 DAG size of output: 32 [2020-10-11 16:45:30,466 WARN L193 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 41 DAG size of output: 22 [2020-10-11 16:45:30,675 WARN L193 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 26 [2020-10-11 16:45:30,957 WARN L193 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 44 DAG size of output: 25 [2020-10-11 16:45:31,156 WARN L193 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 20 [2020-10-11 16:45:31,326 WARN L193 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 42 DAG size of output: 27 [2020-10-11 16:45:31,866 WARN L193 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 27 [2020-10-11 16:45:32,076 WARN L193 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 34 [2020-10-11 16:45:32,244 WARN L193 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 21 [2020-10-11 16:45:32,872 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-11 16:45:32,872 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [149227289] [2020-10-11 16:45:32,873 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-11 16:45:32,873 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [34] imperfect sequences [] total 34 [2020-10-11 16:45:32,873 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [52111845] [2020-10-11 16:45:32,873 INFO L461 AbstractCegarLoop]: Interpolant automaton has 34 states [2020-10-11 16:45:32,874 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-11 16:45:32,874 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2020-10-11 16:45:32,874 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=145, Invalid=977, Unknown=0, NotChecked=0, Total=1122 [2020-10-11 16:47:51,215 INFO L506 CegarLoopForPetriNet]: Number of universal loopers: 158 out of 244 [2020-10-11 16:47:51,217 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 323 places, 283 transitions, 1439 flow. Second operand 34 states. [2020-10-11 16:47:51,218 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-10-11 16:47:51,218 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 158 of 244 [2020-10-11 16:47:51,218 INFO L71 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2020-10-11 16:47:52,221 WARN L193 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 41 [2020-10-11 16:47:52,445 WARN L193 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 46 [2020-10-11 16:47:52,676 WARN L193 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 50 [2020-10-11 16:47:52,931 WARN L193 SmtUtils]: Spent 169.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 50 [2020-10-11 16:47:53,309 WARN L193 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 40 [2020-10-11 16:47:53,603 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 44 [2020-10-11 16:47:53,850 WARN L193 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 48 [2020-10-11 16:47:54,299 WARN L193 SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 49 [2020-10-11 16:47:54,616 WARN L193 SmtUtils]: Spent 177.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 49 [2020-10-11 16:47:54,899 WARN L193 SmtUtils]: Spent 181.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 51 [2020-10-11 16:47:55,169 WARN L193 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 51 [2020-10-11 16:47:55,402 WARN L193 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 54 [2020-10-11 16:47:55,637 WARN L193 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 49 [2020-10-11 16:47:55,943 WARN L193 SmtUtils]: Spent 173.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 51 [2020-10-11 16:47:56,246 WARN L193 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 46 [2020-10-11 16:47:56,563 WARN L193 SmtUtils]: Spent 195.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 57 [2020-10-11 16:47:56,957 WARN L193 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 39 [2020-10-11 16:47:57,183 WARN L193 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 46 [2020-10-11 16:47:57,516 WARN L193 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 54 [2020-10-11 16:47:57,940 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 57 [2020-10-11 16:47:58,368 INFO L129 PetriNetUnfolder]: 188/1449 cut-off events. [2020-10-11 16:47:58,368 INFO L130 PetriNetUnfolder]: For 1411/1416 co-relation queries the response was YES. [2020-10-11 16:47:58,374 INFO L80 FinitePrefix]: Finished finitePrefix Result has 3226 conditions, 1449 events. 188/1449 cut-off events. For 1411/1416 co-relation queries the response was YES. Maximal size of possible extension queue 28. Compared 7218 event pairs, 19 based on Foata normal form. 1/1389 useless extension candidates. Maximal degree in co-relation 3184. Up to 146 conditions per place. [2020-10-11 16:47:58,378 INFO L132 encePairwiseOnDemand]: 206/244 looper letters, 104 selfloop transitions, 66 changer transitions 0/324 dead transitions. [2020-10-11 16:47:58,378 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 354 places, 324 transitions, 1934 flow [2020-10-11 16:47:58,381 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2020-10-11 16:47:58,381 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 32 states. [2020-10-11 16:47:58,385 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 5186 transitions. [2020-10-11 16:47:58,387 INFO L551 CegarLoopForPetriNet]: DFA transition density 0.6641905737704918 [2020-10-11 16:47:58,387 INFO L72 ComplementDD]: Start complementDD. Operand 32 states and 5186 transitions. [2020-10-11 16:47:58,387 INFO L73 IsDeterministic]: Start isDeterministic. Operand 32 states and 5186 transitions. [2020-10-11 16:47:58,388 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-11 16:47:58,389 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 32 states and 5186 transitions. [2020-10-11 16:47:58,394 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 33 states. [2020-10-11 16:47:58,400 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result 33 states. [2020-10-11 16:47:58,400 INFO L81 ComplementDD]: Finished complementDD. Result 33 states. [2020-10-11 16:47:58,400 INFO L185 Difference]: Start difference. First operand has 323 places, 283 transitions, 1439 flow. Second operand 32 states and 5186 transitions. [2020-10-11 16:47:58,400 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 354 places, 324 transitions, 1934 flow [2020-10-11 16:47:58,410 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 335 places, 324 transitions, 1838 flow, removed 0 selfloop flow, removed 19 redundant places. [2020-10-11 16:47:58,416 INFO L241 Difference]: Finished difference. Result has 341 places, 292 transitions, 1528 flow [2020-10-11 16:47:58,416 INFO L325 CegarLoopForPetriNet]: {PETRI_ALPHABET=244, PETRI_DIFFERENCE_MINUEND_FLOW=1343, PETRI_DIFFERENCE_MINUEND_PLACES=304, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=283, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=58, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=219, PETRI_DIFFERENCE_SUBTRAHEND_STATES=32, PETRI_FLOW=1528, PETRI_PLACES=341, PETRI_TRANSITIONS=292} [2020-10-11 16:47:58,416 INFO L341 CegarLoopForPetriNet]: 223 programPoint places, 118 predicate places. [2020-10-11 16:47:58,417 INFO L481 AbstractCegarLoop]: Abstraction has has 341 places, 292 transitions, 1528 flow [2020-10-11 16:47:58,417 INFO L482 AbstractCegarLoop]: Interpolant automaton has 34 states. [2020-10-11 16:47:58,417 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-11 16:47:58,417 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-11 16:47:58,417 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-10-11 16:47:58,417 INFO L429 AbstractCegarLoop]: === Iteration 17 === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-11 16:47:58,418 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-11 16:47:58,418 INFO L82 PathProgramCache]: Analyzing trace with hash -801141496, now seen corresponding path program 1 times [2020-10-11 16:47:58,418 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-11 16:47:58,418 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [952682817] [2020-10-11 16:47:58,418 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-11 16:47:58,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat Received shutdown request... [2020-10-11 16:52:16,714 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2020-10-11 16:52:16,718 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2020-10-11 16:52:16,732 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2020-10-11 16:52:16,737 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2020-10-11 16:52:16,739 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2020-10-11 16:52:16,742 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2020-10-11 16:52:16,743 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2020-10-11 16:52:16,750 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2020-10-11 16:52:16,751 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2020-10-11 16:52:16,755 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2020-10-11 16:52:16,756 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2020-10-11 16:52:16,759 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2020-10-11 16:52:16,761 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2020-10-11 16:52:16,764 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2020-10-11 16:52:16,768 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2020-10-11 16:52:16,770 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2020-10-11 16:52:16,773 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2020-10-11 16:52:16,775 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2020-10-11 16:52:16,778 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2020-10-11 16:52:16,779 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2020-10-11 16:52:16,784 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2020-10-11 16:52:16,785 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2020-10-11 16:52:16,786 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2020-10-11 16:52:16,788 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2020-10-11 16:52:16,789 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2020-10-11 16:52:16,790 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2020-10-11 16:52:16,793 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2020-10-11 16:52:16,794 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2020-10-11 16:52:16,795 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2020-10-11 16:52:16,795 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2020-10-11 16:52:16,796 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2020-10-11 16:52:16,799 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2020-10-11 16:52:16,800 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2020-10-11 16:52:16,800 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2020-10-11 16:52:16,801 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2020-10-11 16:52:16,801 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2020-10-11 16:52:16,802 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2020-10-11 16:52:16,803 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2020-10-11 16:52:16,803 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2020-10-11 16:52:16,803 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2020-10-11 16:52:16,804 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2020-10-11 16:52:16,804 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2020-10-11 16:52:16,804 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2020-10-11 16:52:16,805 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2020-10-11 16:52:16,809 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2020-10-11 16:52:16,809 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2020-10-11 16:52:16,810 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2020-10-11 16:52:16,810 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2020-10-11 16:52:16,811 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2020-10-11 16:52:16,813 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2020-10-11 16:52:16,813 WARN L546 AbstractCegarLoop]: Verification canceled [2020-10-11 16:52:16,821 WARN L235 ceAbstractionStarter]: Timeout [2020-10-11 16:52:16,821 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.10 04:52:16 BasicIcfg [2020-10-11 16:52:16,821 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-11 16:52:16,823 INFO L168 Benchmark]: Toolchain (without parser) took 801659.87 ms. Allocated memory was 248.5 MB in the beginning and 6.1 GB in the end (delta: 5.8 GB). Free memory was 200.7 MB in the beginning and 4.8 GB in the end (delta: -4.6 GB). Peak memory consumption was 5.9 GB. Max. memory is 14.2 GB. [2020-10-11 16:52:16,829 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 248.5 MB. Free memory is still 222.4 MB. There was no memory consumed. Max. memory is 14.2 GB. [2020-10-11 16:52:16,830 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1171.65 ms. Allocated memory was 248.5 MB in the beginning and 305.7 MB in the end (delta: 57.1 MB). Free memory was 200.7 MB in the beginning and 234.2 MB in the end (delta: -33.5 MB). Peak memory consumption was 33.7 MB. Max. memory is 14.2 GB. [2020-10-11 16:52:16,830 INFO L168 Benchmark]: Boogie Procedure Inliner took 93.97 ms. Allocated memory is still 305.7 MB. Free memory was 234.2 MB in the beginning and 229.2 MB in the end (delta: 5.0 MB). Peak memory consumption was 5.0 MB. Max. memory is 14.2 GB. [2020-10-11 16:52:16,831 INFO L168 Benchmark]: Boogie Preprocessor took 51.64 ms. Allocated memory is still 305.7 MB. Free memory was 229.2 MB in the beginning and 226.6 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.5 MB. Max. memory is 14.2 GB. [2020-10-11 16:52:16,832 INFO L168 Benchmark]: RCFGBuilder took 780.17 ms. Allocated memory is still 305.7 MB. Free memory was 226.6 MB in the beginning and 179.1 MB in the end (delta: 47.5 MB). Peak memory consumption was 47.5 MB. Max. memory is 14.2 GB. [2020-10-11 16:52:16,832 INFO L168 Benchmark]: TraceAbstraction took 799556.81 ms. Allocated memory was 305.7 MB in the beginning and 6.1 GB in the end (delta: 5.8 GB). Free memory was 179.1 MB in the beginning and 4.8 GB in the end (delta: -4.6 GB). Peak memory consumption was 5.8 GB. Max. memory is 14.2 GB. [2020-10-11 16:52:16,840 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 248.5 MB. Free memory is still 222.4 MB. There was no memory consumed. Max. memory is 14.2 GB. * CACSL2BoogieTranslator took 1171.65 ms. Allocated memory was 248.5 MB in the beginning and 305.7 MB in the end (delta: 57.1 MB). Free memory was 200.7 MB in the beginning and 234.2 MB in the end (delta: -33.5 MB). Peak memory consumption was 33.7 MB. Max. memory is 14.2 GB. * Boogie Procedure Inliner took 93.97 ms. Allocated memory is still 305.7 MB. Free memory was 234.2 MB in the beginning and 229.2 MB in the end (delta: 5.0 MB). Peak memory consumption was 5.0 MB. Max. memory is 14.2 GB. * Boogie Preprocessor took 51.64 ms. Allocated memory is still 305.7 MB. Free memory was 229.2 MB in the beginning and 226.6 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.5 MB. Max. memory is 14.2 GB. * RCFGBuilder took 780.17 ms. Allocated memory is still 305.7 MB. Free memory was 226.6 MB in the beginning and 179.1 MB in the end (delta: 47.5 MB). Peak memory consumption was 47.5 MB. Max. memory is 14.2 GB. * TraceAbstraction took 799556.81 ms. Allocated memory was 305.7 MB in the beginning and 6.1 GB in the end (delta: 5.8 GB). Free memory was 179.1 MB in the beginning and 4.8 GB in the end (delta: -4.6 GB). Peak memory consumption was 5.8 GB. Max. memory is 14.2 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 1040]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 1040). Cancelled while CegarLoopForPetriNet was analyzing trace of length 176 with TraceHistMax 1,while InterpolatingTraceCheckCraig was constructing Craig interpolants,while NestedInterpolantsBuilder was constructing predicates for 174 interpolants. - TimeoutResultAtElement [Line: 1013]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 1013). Cancelled while CegarLoopForPetriNet was analyzing trace of length 176 with TraceHistMax 1,while InterpolatingTraceCheckCraig was constructing Craig interpolants,while NestedInterpolantsBuilder was constructing predicates for 174 interpolants. - TimeoutResultAtElement [Line: 1024]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 1024). Cancelled while CegarLoopForPetriNet was analyzing trace of length 176 with TraceHistMax 1,while InterpolatingTraceCheckCraig was constructing Craig interpolants,while NestedInterpolantsBuilder was constructing predicates for 174 interpolants. - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 228 locations, 3 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: VerificationResult: TIMEOUT, OverallTime: 799.2s, OverallIterations: 17, TraceHistogramMax: 1, AutomataDifference: 526.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.2s, HoareTripleCheckerStatistics: 4569 SDtfs, 11947 SDslu, 51274 SDs, 0 SdLazy, 77810 SolverSat, 996 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 94.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 515 GetRequests, 46 SyntacticMatches, 19 SemanticMatches, 450 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4250 ImplicationChecksByTransitivity, 31.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1528occurred in iteration=16, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 12.9s InterpolantComputationTime, 1660 NumberOfCodeBlocks, 1660 NumberOfCodeBlocksAsserted, 16 NumberOfCheckSat, 1644 ConstructedInterpolants, 0 QuantifiedInterpolants, 2132950 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 16 InterpolantComputations, 16 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown