/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-NoLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread-atomic/read_write_lock-2.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-0e22065b97d0a1f8b3904e080cebe0f05e88d2b7-0e22065 [2021-06-10 11:14:29,541 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-06-10 11:14:29,544 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-06-10 11:14:29,575 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-06-10 11:14:29,575 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-06-10 11:14:29,578 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-06-10 11:14:29,581 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-06-10 11:14:29,586 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-06-10 11:14:29,588 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-06-10 11:14:29,592 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-06-10 11:14:29,592 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-06-10 11:14:29,593 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-06-10 11:14:29,593 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-06-10 11:14:29,594 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-06-10 11:14:29,595 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-06-10 11:14:29,595 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-06-10 11:14:29,596 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-06-10 11:14:29,597 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-06-10 11:14:29,598 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-06-10 11:14:29,599 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-06-10 11:14:29,600 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-06-10 11:14:29,603 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-06-10 11:14:29,604 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-06-10 11:14:29,606 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-06-10 11:14:29,618 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-06-10 11:14:29,618 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-06-10 11:14:29,619 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-06-10 11:14:29,619 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-06-10 11:14:29,620 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-06-10 11:14:29,621 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-06-10 11:14:29,621 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-06-10 11:14:29,621 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-06-10 11:14:29,622 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-06-10 11:14:29,622 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-06-10 11:14:29,623 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-06-10 11:14:29,623 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-06-10 11:14:29,624 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-06-10 11:14:29,624 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-06-10 11:14:29,624 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-06-10 11:14:29,625 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-06-10 11:14:29,625 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-06-10 11:14:29,629 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-NoLbe.epf [2021-06-10 11:14:29,661 INFO L113 SettingsManager]: Loading preferences was successful [2021-06-10 11:14:29,661 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-06-10 11:14:29,664 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-06-10 11:14:29,664 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-06-10 11:14:29,664 INFO L138 SettingsManager]: * Use SBE=true [2021-06-10 11:14:29,664 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-06-10 11:14:29,664 INFO L138 SettingsManager]: * sizeof long=4 [2021-06-10 11:14:29,665 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-06-10 11:14:29,665 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-06-10 11:14:29,665 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-06-10 11:14:29,666 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-06-10 11:14:29,666 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-06-10 11:14:29,666 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-06-10 11:14:29,666 INFO L138 SettingsManager]: * sizeof long double=12 [2021-06-10 11:14:29,666 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-06-10 11:14:29,666 INFO L138 SettingsManager]: * Use constant arrays=true [2021-06-10 11:14:29,666 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-06-10 11:14:29,667 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-06-10 11:14:29,667 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-06-10 11:14:29,667 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-06-10 11:14:29,667 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-06-10 11:14:29,667 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-06-10 11:14:29,667 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-06-10 11:14:29,667 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-06-10 11:14:29,668 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-06-10 11:14:29,668 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-06-10 11:14:29,668 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-06-10 11:14:29,668 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-06-10 11:14:29,668 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-06-10 11:14:29,668 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-06-10 11:14:29,935 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-06-10 11:14:29,952 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-06-10 11:14:29,954 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-06-10 11:14:29,955 INFO L271 PluginConnector]: Initializing CDTParser... [2021-06-10 11:14:29,956 INFO L275 PluginConnector]: CDTParser initialized [2021-06-10 11:14:29,956 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-atomic/read_write_lock-2.i [2021-06-10 11:14:30,028 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b564076be/fbedf3e2b0b845fd8b599d80742aae79/FLAG05549c592 [2021-06-10 11:14:30,575 INFO L306 CDTParser]: Found 1 translation units. [2021-06-10 11:14:30,576 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-atomic/read_write_lock-2.i [2021-06-10 11:14:30,590 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b564076be/fbedf3e2b0b845fd8b599d80742aae79/FLAG05549c592 [2021-06-10 11:14:30,884 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b564076be/fbedf3e2b0b845fd8b599d80742aae79 [2021-06-10 11:14:30,887 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-06-10 11:14:30,889 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-06-10 11:14:30,892 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-06-10 11:14:30,892 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-06-10 11:14:30,894 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-06-10 11:14:30,895 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.06 11:14:30" (1/1) ... [2021-06-10 11:14:30,896 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@57d359a1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.06 11:14:30, skipping insertion in model container [2021-06-10 11:14:30,896 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.06 11:14:30" (1/1) ... [2021-06-10 11:14:30,902 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-06-10 11:14:30,947 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-06-10 11:14:31,111 WARN L612 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2021-06-10 11:14:31,233 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-atomic/read_write_lock-2.i[31244,31257] [2021-06-10 11:14:31,245 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-06-10 11:14:31,252 INFO L203 MainTranslator]: Completed pre-run [2021-06-10 11:14:31,276 WARN L612 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2021-06-10 11:14:31,302 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-atomic/read_write_lock-2.i[31244,31257] [2021-06-10 11:14:31,305 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-06-10 11:14:31,376 INFO L208 MainTranslator]: Completed translation [2021-06-10 11:14:31,377 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.06 11:14:31 WrapperNode [2021-06-10 11:14:31,377 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-06-10 11:14:31,378 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-06-10 11:14:31,378 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-06-10 11:14:31,378 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-06-10 11:14:31,384 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.06 11:14:31" (1/1) ... [2021-06-10 11:14:31,412 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.06 11:14:31" (1/1) ... [2021-06-10 11:14:31,437 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-06-10 11:14:31,438 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-06-10 11:14:31,438 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-06-10 11:14:31,438 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-06-10 11:14:31,444 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.06 11:14:31" (1/1) ... [2021-06-10 11:14:31,444 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.06 11:14:31" (1/1) ... [2021-06-10 11:14:31,448 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.06 11:14:31" (1/1) ... [2021-06-10 11:14:31,449 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.06 11:14:31" (1/1) ... [2021-06-10 11:14:31,463 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.06 11:14:31" (1/1) ... [2021-06-10 11:14:31,465 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.06 11:14:31" (1/1) ... [2021-06-10 11:14:31,466 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.06 11:14:31" (1/1) ... [2021-06-10 11:14:31,468 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-06-10 11:14:31,468 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-06-10 11:14:31,468 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-06-10 11:14:31,469 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-06-10 11:14:31,469 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.06 11:14:31" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-06-10 11:14:31,542 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-06-10 11:14:31,542 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-06-10 11:14:31,543 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-06-10 11:14:31,543 INFO L130 BoogieDeclarations]: Found specification of procedure reader [2021-06-10 11:14:31,543 INFO L138 BoogieDeclarations]: Found implementation of procedure reader [2021-06-10 11:14:31,543 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-06-10 11:14:31,543 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-06-10 11:14:31,543 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-06-10 11:14:31,543 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-06-10 11:14:31,544 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-06-10 11:14:31,544 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-06-10 11:14:31,544 INFO L130 BoogieDeclarations]: Found specification of procedure writer [2021-06-10 11:14:31,544 INFO L138 BoogieDeclarations]: Found implementation of procedure writer [2021-06-10 11:14:31,545 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-06-10 11:14:31,902 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-06-10 11:14:31,902 INFO L299 CfgBuilder]: Removed 4 assume(true) statements. [2021-06-10 11:14:31,904 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.06 11:14:31 BoogieIcfgContainer [2021-06-10 11:14:31,904 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-06-10 11:14:31,905 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-06-10 11:14:31,905 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-06-10 11:14:31,908 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-06-10 11:14:31,908 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.06 11:14:30" (1/3) ... [2021-06-10 11:14:31,908 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3201c9cb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.06 11:14:31, skipping insertion in model container [2021-06-10 11:14:31,908 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.06 11:14:31" (2/3) ... [2021-06-10 11:14:31,909 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3201c9cb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.06 11:14:31, skipping insertion in model container [2021-06-10 11:14:31,909 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.06 11:14:31" (3/3) ... [2021-06-10 11:14:31,910 INFO L111 eAbstractionObserver]: Analyzing ICFG read_write_lock-2.i [2021-06-10 11:14:31,914 INFO L149 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-06-10 11:14:31,918 INFO L161 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-06-10 11:14:31,918 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-06-10 11:14:31,942 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 11:14:31,943 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 11:14:31,943 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 11:14:31,943 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 11:14:31,943 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 11:14:31,943 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 11:14:31,943 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 11:14:31,943 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 11:14:31,944 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork1_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 11:14:31,944 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork1_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 11:14:31,944 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 11:14:31,944 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 11:14:31,944 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 11:14:31,945 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 11:14:31,945 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork1_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 11:14:31,945 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork1_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 11:14:31,945 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork1_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 11:14:31,945 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork1_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 11:14:31,945 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork1_~ly~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 11:14:31,946 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork1_~ly~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 11:14:31,946 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork1_~lx~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 11:14:31,946 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork1_~lx~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 11:14:31,946 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork1_~ly~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 11:14:31,946 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork1_~lx~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 11:14:31,946 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork1_~ly~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 11:14:31,947 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork1_~lx~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 11:14:31,947 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork1_~ly~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 11:14:31,947 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork1_~lx~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 11:14:31,947 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork1_~ly~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 11:14:31,947 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork1_~lx~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 11:14:31,947 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork1_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 11:14:31,948 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork1_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 11:14:31,948 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork1_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 11:14:31,948 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork1_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 11:14:31,948 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 11:14:31,948 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 11:14:31,948 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 11:14:31,948 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 11:14:31,949 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 11:14:31,949 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 11:14:31,949 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 11:14:31,949 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 11:14:31,949 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 11:14:31,950 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 11:14:31,950 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 11:14:31,950 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 11:14:31,950 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork3_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 11:14:31,950 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork3_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 11:14:31,950 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork3_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 11:14:31,951 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork3_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 11:14:31,951 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork3_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 11:14:31,951 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork3_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 11:14:31,951 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork3_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 11:14:31,951 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork3_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 11:14:31,951 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork3_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 11:14:31,952 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork3_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 11:14:31,952 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork3_~ly~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 11:14:31,952 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork3_~ly~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 11:14:31,952 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork3_~lx~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 11:14:31,952 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork3_~lx~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 11:14:31,953 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork3_~ly~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 11:14:31,953 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork3_~lx~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 11:14:31,953 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork3_~ly~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 11:14:31,953 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork3_~lx~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 11:14:31,953 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork3_~ly~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 11:14:31,953 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork3_~lx~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 11:14:31,953 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork3_~ly~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 11:14:31,954 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork3_~lx~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 11:14:31,954 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork3_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 11:14:31,954 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork3_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 11:14:31,954 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork3_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 11:14:31,954 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork3_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 11:14:31,955 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 11:14:31,955 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 11:14:31,955 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 11:14:31,955 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 11:14:31,955 WARN L313 ript$VariableManager]: TermVariabe |writerThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 11:14:31,955 WARN L313 ript$VariableManager]: TermVariabe |writerThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 11:14:31,956 WARN L313 ript$VariableManager]: TermVariabe writerThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 11:14:31,956 WARN L313 ript$VariableManager]: TermVariabe writerThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 11:14:31,956 WARN L313 ript$VariableManager]: TermVariabe |writerThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 11:14:31,956 WARN L313 ript$VariableManager]: TermVariabe |writerThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 11:14:31,956 WARN L313 ript$VariableManager]: TermVariabe writerThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 11:14:31,956 WARN L313 ript$VariableManager]: TermVariabe writerThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 11:14:31,956 WARN L313 ript$VariableManager]: TermVariabe writerThread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 11:14:31,957 WARN L313 ript$VariableManager]: TermVariabe |writerThread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 11:14:31,957 WARN L313 ript$VariableManager]: TermVariabe writerThread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 11:14:31,957 WARN L313 ript$VariableManager]: TermVariabe |writerThread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 11:14:31,957 WARN L313 ript$VariableManager]: TermVariabe |writerThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 11:14:31,957 WARN L313 ript$VariableManager]: TermVariabe |writerThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 11:14:31,958 WARN L313 ript$VariableManager]: TermVariabe |writerThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 11:14:31,958 WARN L313 ript$VariableManager]: TermVariabe |writerThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 11:14:31,958 WARN L313 ript$VariableManager]: TermVariabe |writerThread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 11:14:31,958 WARN L313 ript$VariableManager]: TermVariabe |writerThread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 11:14:31,958 WARN L313 ript$VariableManager]: TermVariabe writerThread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 11:14:31,958 WARN L313 ript$VariableManager]: TermVariabe writerThread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 11:14:31,958 WARN L313 ript$VariableManager]: TermVariabe |writerThread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 11:14:31,959 WARN L313 ript$VariableManager]: TermVariabe |writerThread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 11:14:31,959 WARN L313 ript$VariableManager]: TermVariabe writerThread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 11:14:31,959 WARN L313 ript$VariableManager]: TermVariabe writerThread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 11:14:31,959 WARN L313 ript$VariableManager]: TermVariabe writerThread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 11:14:31,959 WARN L313 ript$VariableManager]: TermVariabe |writerThread1of1ForFork2_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 11:14:31,959 WARN L313 ript$VariableManager]: TermVariabe writerThread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 11:14:31,959 WARN L313 ript$VariableManager]: TermVariabe |writerThread1of1ForFork2_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 11:14:31,960 WARN L313 ript$VariableManager]: TermVariabe |writerThread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 11:14:31,960 WARN L313 ript$VariableManager]: TermVariabe |writerThread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 11:14:31,960 WARN L313 ript$VariableManager]: TermVariabe |writerThread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 11:14:31,960 WARN L313 ript$VariableManager]: TermVariabe |writerThread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 11:14:31,962 WARN L313 ript$VariableManager]: TermVariabe |writerThread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 11:14:31,962 WARN L313 ript$VariableManager]: TermVariabe |writerThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 11:14:31,962 WARN L313 ript$VariableManager]: TermVariabe writerThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 11:14:31,963 WARN L313 ript$VariableManager]: TermVariabe |writerThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 11:14:31,963 WARN L313 ript$VariableManager]: TermVariabe writerThread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 11:14:31,963 WARN L313 ript$VariableManager]: TermVariabe writerThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 11:14:31,965 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 11:14:31,965 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 11:14:31,965 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 11:14:31,965 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 11:14:31,966 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork1_~ly~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 11:14:31,966 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork1_~lx~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 11:14:31,966 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 11:14:31,966 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 11:14:31,966 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork1_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 11:14:31,967 WARN L313 ript$VariableManager]: TermVariabe writerThread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 11:14:31,968 WARN L313 ript$VariableManager]: TermVariabe |writerThread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 11:14:31,968 WARN L313 ript$VariableManager]: TermVariabe |writerThread1of1ForFork2_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 11:14:31,968 WARN L313 ript$VariableManager]: TermVariabe |writerThread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 11:14:31,968 WARN L313 ript$VariableManager]: TermVariabe writerThread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 11:14:31,968 WARN L313 ript$VariableManager]: TermVariabe writerThread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 11:14:31,973 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork3_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 11:14:31,974 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork3_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 11:14:31,974 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork3_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 11:14:31,974 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 11:14:31,974 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 11:14:31,975 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 11:14:31,975 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 11:14:31,975 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork3_~ly~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 11:14:31,975 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork3_~lx~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 11:14:31,994 INFO L149 ThreadInstanceAdder]: Constructed 16 joinOtherThreadTransitions. [2021-06-10 11:14:32,008 INFO L253 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2021-06-10 11:14:32,024 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-06-10 11:14:32,025 INFO L377 AbstractCegarLoop]: Hoare is false [2021-06-10 11:14:32,025 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-06-10 11:14:32,025 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-06-10 11:14:32,025 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-06-10 11:14:32,025 INFO L381 AbstractCegarLoop]: Difference is false [2021-06-10 11:14:32,025 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-06-10 11:14:32,025 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-06-10 11:14:32,036 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 109 places, 110 transitions, 288 flow [2021-06-10 11:14:32,081 INFO L129 PetriNetUnfolder]: 19/144 cut-off events. [2021-06-10 11:14:32,081 INFO L130 PetriNetUnfolder]: For 32/32 co-relation queries the response was YES. [2021-06-10 11:14:32,086 INFO L84 FinitePrefix]: Finished finitePrefix Result has 189 conditions, 144 events. 19/144 cut-off events. For 32/32 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 345 event pairs, 0 based on Foata normal form. 0/139 useless extension candidates. Maximal degree in co-relation 97. Up to 12 conditions per place. [2021-06-10 11:14:32,086 INFO L82 GeneralOperation]: Start removeDead. Operand has 109 places, 110 transitions, 288 flow [2021-06-10 11:14:32,090 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 92 places, 90 transitions, 228 flow [2021-06-10 11:14:32,101 INFO L129 PetriNetUnfolder]: 1/53 cut-off events. [2021-06-10 11:14:32,102 INFO L130 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2021-06-10 11:14:32,102 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-10 11:14:32,103 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-10 11:14:32,103 INFO L428 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr3INUSE_VIOLATION, readerErr0ASSERT_VIOLATIONERROR_FUNCTION, readerErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, readerErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2021-06-10 11:14:32,107 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-10 11:14:32,107 INFO L82 PathProgramCache]: Analyzing trace with hash -1663789000, now seen corresponding path program 1 times [2021-06-10 11:14:32,117 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-10 11:14:32,117 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [158597358] [2021-06-10 11:14:32,118 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-10 11:14:32,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-10 11:14:32,362 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 11:14:32,363 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-10 11:14:32,364 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 11:14:32,365 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-10 11:14:32,372 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 11:14:32,373 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-10 11:14:32,378 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 11:14:32,379 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-10 11:14:32,386 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 11:14:32,387 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-10 11:14:32,394 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 11:14:32,394 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-10 11:14:32,396 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-10 11:14:32,396 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [158597358] [2021-06-10 11:14:32,397 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-10 11:14:32,397 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-06-10 11:14:32,397 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [151407351] [2021-06-10 11:14:32,404 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-06-10 11:14:32,404 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-10 11:14:32,415 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-06-10 11:14:32,417 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-06-10 11:14:32,422 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 90 out of 110 [2021-06-10 11:14:32,427 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 92 places, 90 transitions, 228 flow. Second operand has 6 states, 6 states have (on average 91.5) internal successors, (549), 6 states have internal predecessors, (549), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-10 11:14:32,428 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-10 11:14:32,428 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 90 of 110 [2021-06-10 11:14:32,429 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-10 11:14:32,981 INFO L129 PetriNetUnfolder]: 890/2833 cut-off events. [2021-06-10 11:14:32,981 INFO L130 PetriNetUnfolder]: For 495/495 co-relation queries the response was YES. [2021-06-10 11:14:32,993 INFO L84 FinitePrefix]: Finished finitePrefix Result has 4476 conditions, 2833 events. 890/2833 cut-off events. For 495/495 co-relation queries the response was YES. Maximal size of possible extension queue 178. Compared 26270 event pairs, 145 based on Foata normal form. 132/2830 useless extension candidates. Maximal degree in co-relation 3792. Up to 388 conditions per place. [2021-06-10 11:14:33,009 INFO L132 encePairwiseOnDemand]: 98/110 looper letters, 54 selfloop transitions, 32 changer transitions 0/156 dead transitions. [2021-06-10 11:14:33,009 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 103 places, 156 transitions, 532 flow [2021-06-10 11:14:33,009 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-06-10 11:14:33,011 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2021-06-10 11:14:33,020 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 1182 transitions. [2021-06-10 11:14:33,024 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8954545454545455 [2021-06-10 11:14:33,024 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 1182 transitions. [2021-06-10 11:14:33,024 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 1182 transitions. [2021-06-10 11:14:33,027 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-10 11:14:33,029 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 1182 transitions. [2021-06-10 11:14:33,034 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 98.5) internal successors, (1182), 12 states have internal predecessors, (1182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-10 11:14:33,041 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 110.0) internal successors, (1430), 13 states have internal predecessors, (1430), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-10 11:14:33,042 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 110.0) internal successors, (1430), 13 states have internal predecessors, (1430), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-10 11:14:33,043 INFO L185 Difference]: Start difference. First operand has 92 places, 90 transitions, 228 flow. Second operand 12 states and 1182 transitions. [2021-06-10 11:14:33,044 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 103 places, 156 transitions, 532 flow [2021-06-10 11:14:33,055 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 95 places, 156 transitions, 500 flow, removed 0 selfloop flow, removed 8 redundant places. [2021-06-10 11:14:33,059 INFO L241 Difference]: Finished difference. Result has 103 places, 123 transitions, 412 flow [2021-06-10 11:14:33,060 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=110, PETRI_DIFFERENCE_MINUEND_FLOW=192, PETRI_DIFFERENCE_MINUEND_PLACES=84, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=88, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=79, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=412, PETRI_PLACES=103, PETRI_TRANSITIONS=123} [2021-06-10 11:14:33,061 INFO L343 CegarLoopForPetriNet]: 92 programPoint places, 11 predicate places. [2021-06-10 11:14:33,061 INFO L480 AbstractCegarLoop]: Abstraction has has 103 places, 123 transitions, 412 flow [2021-06-10 11:14:33,061 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 91.5) internal successors, (549), 6 states have internal predecessors, (549), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-10 11:14:33,062 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-10 11:14:33,062 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-10 11:14:33,062 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-06-10 11:14:33,062 INFO L428 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr3INUSE_VIOLATION, readerErr0ASSERT_VIOLATIONERROR_FUNCTION, readerErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, readerErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2021-06-10 11:14:33,062 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-10 11:14:33,063 INFO L82 PathProgramCache]: Analyzing trace with hash -1605139710, now seen corresponding path program 1 times [2021-06-10 11:14:33,063 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-10 11:14:33,063 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [170342538] [2021-06-10 11:14:33,063 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-10 11:14:33,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-10 11:14:33,122 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 11:14:33,128 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-10 11:14:33,131 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 11:14:33,131 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-10 11:14:33,135 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 11:14:33,135 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-10 11:14:33,141 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 11:14:33,142 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-10 11:14:33,142 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-10 11:14:33,143 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [170342538] [2021-06-10 11:14:33,143 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-10 11:14:33,143 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-06-10 11:14:33,143 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [67259499] [2021-06-10 11:14:33,144 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-06-10 11:14:33,144 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-10 11:14:33,144 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-06-10 11:14:33,145 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-06-10 11:14:33,152 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 99 out of 110 [2021-06-10 11:14:33,154 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 103 places, 123 transitions, 412 flow. Second operand has 4 states, 4 states have (on average 99.75) internal successors, (399), 4 states have internal predecessors, (399), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-10 11:14:33,154 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-10 11:14:33,154 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 99 of 110 [2021-06-10 11:14:33,154 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-10 11:14:33,722 INFO L129 PetriNetUnfolder]: 1056/4756 cut-off events. [2021-06-10 11:14:33,723 INFO L130 PetriNetUnfolder]: For 632/785 co-relation queries the response was YES. [2021-06-10 11:14:33,747 INFO L84 FinitePrefix]: Finished finitePrefix Result has 6951 conditions, 4756 events. 1056/4756 cut-off events. For 632/785 co-relation queries the response was YES. Maximal size of possible extension queue 373. Compared 55656 event pairs, 89 based on Foata normal form. 96/4619 useless extension candidates. Maximal degree in co-relation 6425. Up to 538 conditions per place. [2021-06-10 11:14:33,768 INFO L132 encePairwiseOnDemand]: 103/110 looper letters, 23 selfloop transitions, 9 changer transitions 0/143 dead transitions. [2021-06-10 11:14:33,769 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 106 places, 143 transitions, 538 flow [2021-06-10 11:14:33,769 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-10 11:14:33,769 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-06-10 11:14:33,770 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 421 transitions. [2021-06-10 11:14:33,771 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.9568181818181818 [2021-06-10 11:14:33,771 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 421 transitions. [2021-06-10 11:14:33,771 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 421 transitions. [2021-06-10 11:14:33,772 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-10 11:14:33,772 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 421 transitions. [2021-06-10 11:14:33,773 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 105.25) internal successors, (421), 4 states have internal predecessors, (421), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-10 11:14:33,774 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 110.0) internal successors, (550), 5 states have internal predecessors, (550), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-10 11:14:33,774 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 110.0) internal successors, (550), 5 states have internal predecessors, (550), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-10 11:14:33,774 INFO L185 Difference]: Start difference. First operand has 103 places, 123 transitions, 412 flow. Second operand 4 states and 421 transitions. [2021-06-10 11:14:33,774 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 106 places, 143 transitions, 538 flow [2021-06-10 11:14:33,790 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 106 places, 143 transitions, 538 flow, removed 0 selfloop flow, removed 0 redundant places. [2021-06-10 11:14:33,793 INFO L241 Difference]: Finished difference. Result has 109 places, 131 transitions, 480 flow [2021-06-10 11:14:33,794 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=110, PETRI_DIFFERENCE_MINUEND_FLOW=412, PETRI_DIFFERENCE_MINUEND_PLACES=103, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=123, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=116, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=480, PETRI_PLACES=109, PETRI_TRANSITIONS=131} [2021-06-10 11:14:33,794 INFO L343 CegarLoopForPetriNet]: 92 programPoint places, 17 predicate places. [2021-06-10 11:14:33,794 INFO L480 AbstractCegarLoop]: Abstraction has has 109 places, 131 transitions, 480 flow [2021-06-10 11:14:33,795 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 99.75) internal successors, (399), 4 states have internal predecessors, (399), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-10 11:14:33,795 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-10 11:14:33,795 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-10 11:14:33,795 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-06-10 11:14:33,795 INFO L428 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr3INUSE_VIOLATION, readerErr0ASSERT_VIOLATIONERROR_FUNCTION, readerErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, readerErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2021-06-10 11:14:33,796 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-10 11:14:33,796 INFO L82 PathProgramCache]: Analyzing trace with hash -1916863806, now seen corresponding path program 2 times [2021-06-10 11:14:33,796 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-10 11:14:33,796 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [493318606] [2021-06-10 11:14:33,797 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-10 11:14:33,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-10 11:14:33,872 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 11:14:33,873 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-10 11:14:33,873 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 11:14:33,873 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-10 11:14:33,877 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 11:14:33,877 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-10 11:14:33,879 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-10 11:14:33,879 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [493318606] [2021-06-10 11:14:33,879 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-10 11:14:33,879 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-06-10 11:14:33,879 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1149980942] [2021-06-10 11:14:33,880 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-06-10 11:14:33,880 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-10 11:14:33,881 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-06-10 11:14:33,882 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-06-10 11:14:33,883 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 101 out of 110 [2021-06-10 11:14:33,884 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 109 places, 131 transitions, 480 flow. Second operand has 3 states, 3 states have (on average 102.0) internal successors, (306), 3 states have internal predecessors, (306), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-10 11:14:33,884 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-10 11:14:33,884 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 101 of 110 [2021-06-10 11:14:33,884 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-10 11:14:34,110 INFO L129 PetriNetUnfolder]: 409/2078 cut-off events. [2021-06-10 11:14:34,110 INFO L130 PetriNetUnfolder]: For 539/615 co-relation queries the response was YES. [2021-06-10 11:14:34,122 INFO L84 FinitePrefix]: Finished finitePrefix Result has 3067 conditions, 2078 events. 409/2078 cut-off events. For 539/615 co-relation queries the response was YES. Maximal size of possible extension queue 180. Compared 20746 event pairs, 6 based on Foata normal form. 57/2053 useless extension candidates. Maximal degree in co-relation 2878. Up to 282 conditions per place. [2021-06-10 11:14:34,130 INFO L132 encePairwiseOnDemand]: 104/110 looper letters, 5 selfloop transitions, 6 changer transitions 0/131 dead transitions. [2021-06-10 11:14:34,131 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 111 places, 131 transitions, 502 flow [2021-06-10 11:14:34,131 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-10 11:14:34,131 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-06-10 11:14:34,132 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 314 transitions. [2021-06-10 11:14:34,132 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.9515151515151515 [2021-06-10 11:14:34,132 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 314 transitions. [2021-06-10 11:14:34,132 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 314 transitions. [2021-06-10 11:14:34,132 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-10 11:14:34,132 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 314 transitions. [2021-06-10 11:14:34,134 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 104.66666666666667) internal successors, (314), 3 states have internal predecessors, (314), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-10 11:14:34,134 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 110.0) internal successors, (440), 4 states have internal predecessors, (440), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-10 11:14:34,135 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 110.0) internal successors, (440), 4 states have internal predecessors, (440), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-10 11:14:34,135 INFO L185 Difference]: Start difference. First operand has 109 places, 131 transitions, 480 flow. Second operand 3 states and 314 transitions. [2021-06-10 11:14:34,135 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 111 places, 131 transitions, 502 flow [2021-06-10 11:14:34,140 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 111 places, 131 transitions, 502 flow, removed 0 selfloop flow, removed 0 redundant places. [2021-06-10 11:14:34,144 INFO L241 Difference]: Finished difference. Result has 112 places, 131 transitions, 502 flow [2021-06-10 11:14:34,145 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=110, PETRI_DIFFERENCE_MINUEND_FLOW=480, PETRI_DIFFERENCE_MINUEND_PLACES=109, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=131, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=125, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=502, PETRI_PLACES=112, PETRI_TRANSITIONS=131} [2021-06-10 11:14:34,145 INFO L343 CegarLoopForPetriNet]: 92 programPoint places, 20 predicate places. [2021-06-10 11:14:34,145 INFO L480 AbstractCegarLoop]: Abstraction has has 112 places, 131 transitions, 502 flow [2021-06-10 11:14:34,145 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 102.0) internal successors, (306), 3 states have internal predecessors, (306), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-10 11:14:34,145 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-10 11:14:34,145 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-10 11:14:34,148 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-06-10 11:14:34,148 INFO L428 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr3INUSE_VIOLATION, readerErr0ASSERT_VIOLATIONERROR_FUNCTION, readerErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, readerErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2021-06-10 11:14:34,149 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-10 11:14:34,149 INFO L82 PathProgramCache]: Analyzing trace with hash 1484928555, now seen corresponding path program 1 times [2021-06-10 11:14:34,149 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-10 11:14:34,149 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [632526810] [2021-06-10 11:14:34,149 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-10 11:14:34,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-10 11:14:34,199 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 11:14:34,199 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-10 11:14:34,200 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 11:14:34,200 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-10 11:14:34,203 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 11:14:34,204 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-10 11:14:34,207 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 11:14:34,207 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-10 11:14:34,211 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 11:14:34,211 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-10 11:14:34,217 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 11:14:34,217 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-10 11:14:34,217 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-10 11:14:34,218 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [632526810] [2021-06-10 11:14:34,218 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-10 11:14:34,218 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-06-10 11:14:34,218 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1944481014] [2021-06-10 11:14:34,218 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-06-10 11:14:34,218 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-10 11:14:34,219 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-06-10 11:14:34,221 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-06-10 11:14:34,222 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 90 out of 110 [2021-06-10 11:14:34,222 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 112 places, 131 transitions, 502 flow. Second operand has 6 states, 6 states have (on average 91.5) internal successors, (549), 6 states have internal predecessors, (549), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-10 11:14:34,222 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-10 11:14:34,224 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 90 of 110 [2021-06-10 11:14:34,224 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-10 11:14:34,759 INFO L129 PetriNetUnfolder]: 987/3949 cut-off events. [2021-06-10 11:14:34,759 INFO L130 PetriNetUnfolder]: For 2271/2379 co-relation queries the response was YES. [2021-06-10 11:14:34,783 INFO L84 FinitePrefix]: Finished finitePrefix Result has 7402 conditions, 3949 events. 987/3949 cut-off events. For 2271/2379 co-relation queries the response was YES. Maximal size of possible extension queue 316. Compared 41738 event pairs, 76 based on Foata normal form. 40/3855 useless extension candidates. Maximal degree in co-relation 7032. Up to 476 conditions per place. [2021-06-10 11:14:34,799 INFO L132 encePairwiseOnDemand]: 100/110 looper letters, 83 selfloop transitions, 64 changer transitions 0/228 dead transitions. [2021-06-10 11:14:34,799 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 123 places, 228 transitions, 1262 flow [2021-06-10 11:14:34,800 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-06-10 11:14:34,800 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2021-06-10 11:14:34,802 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 1169 transitions. [2021-06-10 11:14:34,802 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8856060606060606 [2021-06-10 11:14:34,802 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 1169 transitions. [2021-06-10 11:14:34,802 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 1169 transitions. [2021-06-10 11:14:34,803 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-10 11:14:34,803 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 1169 transitions. [2021-06-10 11:14:34,806 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 97.41666666666667) internal successors, (1169), 12 states have internal predecessors, (1169), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-10 11:14:34,808 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 110.0) internal successors, (1430), 13 states have internal predecessors, (1430), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-10 11:14:34,808 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 110.0) internal successors, (1430), 13 states have internal predecessors, (1430), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-10 11:14:34,808 INFO L185 Difference]: Start difference. First operand has 112 places, 131 transitions, 502 flow. Second operand 12 states and 1169 transitions. [2021-06-10 11:14:34,808 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 123 places, 228 transitions, 1262 flow [2021-06-10 11:14:34,824 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 121 places, 228 transitions, 1250 flow, removed 0 selfloop flow, removed 2 redundant places. [2021-06-10 11:14:34,827 INFO L241 Difference]: Finished difference. Result has 131 places, 186 transitions, 1054 flow [2021-06-10 11:14:34,827 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=110, PETRI_DIFFERENCE_MINUEND_FLOW=490, PETRI_DIFFERENCE_MINUEND_PLACES=110, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=131, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=21, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=96, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=1054, PETRI_PLACES=131, PETRI_TRANSITIONS=186} [2021-06-10 11:14:34,827 INFO L343 CegarLoopForPetriNet]: 92 programPoint places, 39 predicate places. [2021-06-10 11:14:34,828 INFO L480 AbstractCegarLoop]: Abstraction has has 131 places, 186 transitions, 1054 flow [2021-06-10 11:14:34,828 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 91.5) internal successors, (549), 6 states have internal predecessors, (549), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-10 11:14:34,828 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-10 11:14:34,828 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-10 11:14:34,828 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-06-10 11:14:34,828 INFO L428 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr3INUSE_VIOLATION, readerErr0ASSERT_VIOLATIONERROR_FUNCTION, readerErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, readerErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2021-06-10 11:14:34,829 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-10 11:14:34,829 INFO L82 PathProgramCache]: Analyzing trace with hash -153453842, now seen corresponding path program 1 times [2021-06-10 11:14:34,829 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-10 11:14:34,829 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [275657073] [2021-06-10 11:14:34,829 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-10 11:14:34,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-10 11:14:34,849 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 11:14:34,849 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-10 11:14:34,850 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 11:14:34,850 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-10 11:14:34,853 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 11:14:34,853 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-10 11:14:34,856 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 11:14:34,856 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-10 11:14:34,860 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 11:14:34,860 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-10 11:14:34,865 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 11:14:34,865 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-10 11:14:34,865 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-10 11:14:34,865 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [275657073] [2021-06-10 11:14:34,866 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-10 11:14:34,866 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-06-10 11:14:34,866 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1708719543] [2021-06-10 11:14:34,866 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-06-10 11:14:34,866 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-10 11:14:34,867 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-06-10 11:14:34,867 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-06-10 11:14:34,867 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 89 out of 110 [2021-06-10 11:14:34,868 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 131 places, 186 transitions, 1054 flow. Second operand has 6 states, 6 states have (on average 91.0) internal successors, (546), 6 states have internal predecessors, (546), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-10 11:14:34,868 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-10 11:14:34,868 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 89 of 110 [2021-06-10 11:14:34,868 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-10 11:14:35,485 INFO L129 PetriNetUnfolder]: 1071/4359 cut-off events. [2021-06-10 11:14:35,485 INFO L130 PetriNetUnfolder]: For 4195/4315 co-relation queries the response was YES. [2021-06-10 11:14:35,518 INFO L84 FinitePrefix]: Finished finitePrefix Result has 9116 conditions, 4359 events. 1071/4359 cut-off events. For 4195/4315 co-relation queries the response was YES. Maximal size of possible extension queue 353. Compared 47467 event pairs, 75 based on Foata normal form. 84/4323 useless extension candidates. Maximal degree in co-relation 8715. Up to 532 conditions per place. [2021-06-10 11:14:35,535 INFO L132 encePairwiseOnDemand]: 100/110 looper letters, 91 selfloop transitions, 81 changer transitions 0/252 dead transitions. [2021-06-10 11:14:35,535 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 143 places, 252 transitions, 1829 flow [2021-06-10 11:14:35,535 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-06-10 11:14:35,535 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2021-06-10 11:14:35,537 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1243 transitions. [2021-06-10 11:14:35,538 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8692307692307693 [2021-06-10 11:14:35,538 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 1243 transitions. [2021-06-10 11:14:35,538 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 1243 transitions. [2021-06-10 11:14:35,539 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-10 11:14:35,539 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 1243 transitions. [2021-06-10 11:14:35,541 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 95.61538461538461) internal successors, (1243), 13 states have internal predecessors, (1243), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-10 11:14:35,543 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 110.0) internal successors, (1540), 14 states have internal predecessors, (1540), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-10 11:14:35,543 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 110.0) internal successors, (1540), 14 states have internal predecessors, (1540), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-10 11:14:35,544 INFO L185 Difference]: Start difference. First operand has 131 places, 186 transitions, 1054 flow. Second operand 13 states and 1243 transitions. [2021-06-10 11:14:35,544 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 143 places, 252 transitions, 1829 flow [2021-06-10 11:14:35,576 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 143 places, 252 transitions, 1829 flow, removed 0 selfloop flow, removed 0 redundant places. [2021-06-10 11:14:35,580 INFO L241 Difference]: Finished difference. Result has 147 places, 215 transitions, 1518 flow [2021-06-10 11:14:35,580 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=110, PETRI_DIFFERENCE_MINUEND_FLOW=1054, PETRI_DIFFERENCE_MINUEND_PLACES=131, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=186, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=54, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=131, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=1518, PETRI_PLACES=147, PETRI_TRANSITIONS=215} [2021-06-10 11:14:35,580 INFO L343 CegarLoopForPetriNet]: 92 programPoint places, 55 predicate places. [2021-06-10 11:14:35,580 INFO L480 AbstractCegarLoop]: Abstraction has has 147 places, 215 transitions, 1518 flow [2021-06-10 11:14:35,581 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 91.0) internal successors, (546), 6 states have internal predecessors, (546), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-10 11:14:35,581 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-10 11:14:35,581 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-10 11:14:35,581 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-06-10 11:14:35,581 INFO L428 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr3INUSE_VIOLATION, readerErr0ASSERT_VIOLATIONERROR_FUNCTION, readerErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, readerErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2021-06-10 11:14:35,581 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-10 11:14:35,582 INFO L82 PathProgramCache]: Analyzing trace with hash 1930985810, now seen corresponding path program 1 times [2021-06-10 11:14:35,582 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-10 11:14:35,582 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1652252684] [2021-06-10 11:14:35,582 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-10 11:14:35,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-10 11:14:35,601 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 11:14:35,601 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-10 11:14:35,602 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 11:14:35,602 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-10 11:14:35,605 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 11:14:35,605 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-10 11:14:35,608 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 11:14:35,608 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-10 11:14:35,612 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 11:14:35,612 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-10 11:14:35,617 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 11:14:35,617 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-10 11:14:35,617 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-10 11:14:35,617 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1652252684] [2021-06-10 11:14:35,618 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-10 11:14:35,618 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-06-10 11:14:35,618 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1266427510] [2021-06-10 11:14:35,618 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-06-10 11:14:35,618 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-10 11:14:35,619 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-06-10 11:14:35,619 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-06-10 11:14:35,619 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 89 out of 110 [2021-06-10 11:14:35,620 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 147 places, 215 transitions, 1518 flow. Second operand has 6 states, 6 states have (on average 91.0) internal successors, (546), 6 states have internal predecessors, (546), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-10 11:14:35,620 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-10 11:14:35,620 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 89 of 110 [2021-06-10 11:14:35,620 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-10 11:14:36,283 INFO L129 PetriNetUnfolder]: 1186/4662 cut-off events. [2021-06-10 11:14:36,283 INFO L130 PetriNetUnfolder]: For 7130/7271 co-relation queries the response was YES. [2021-06-10 11:14:36,322 INFO L84 FinitePrefix]: Finished finitePrefix Result has 10284 conditions, 4662 events. 1186/4662 cut-off events. For 7130/7271 co-relation queries the response was YES. Maximal size of possible extension queue 383. Compared 51065 event pairs, 76 based on Foata normal form. 92/4619 useless extension candidates. Maximal degree in co-relation 9618. Up to 578 conditions per place. [2021-06-10 11:14:36,339 INFO L132 encePairwiseOnDemand]: 100/110 looper letters, 109 selfloop transitions, 88 changer transitions 0/286 dead transitions. [2021-06-10 11:14:36,339 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 159 places, 286 transitions, 2416 flow [2021-06-10 11:14:36,341 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-06-10 11:14:36,341 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2021-06-10 11:14:36,344 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1245 transitions. [2021-06-10 11:14:36,345 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8706293706293706 [2021-06-10 11:14:36,345 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 1245 transitions. [2021-06-10 11:14:36,346 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 1245 transitions. [2021-06-10 11:14:36,346 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-10 11:14:36,346 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 1245 transitions. [2021-06-10 11:14:36,350 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 95.76923076923077) internal successors, (1245), 13 states have internal predecessors, (1245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-10 11:14:36,355 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 110.0) internal successors, (1540), 14 states have internal predecessors, (1540), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-10 11:14:36,355 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 110.0) internal successors, (1540), 14 states have internal predecessors, (1540), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-10 11:14:36,355 INFO L185 Difference]: Start difference. First operand has 147 places, 215 transitions, 1518 flow. Second operand 13 states and 1245 transitions. [2021-06-10 11:14:36,355 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 159 places, 286 transitions, 2416 flow [2021-06-10 11:14:36,396 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 157 places, 286 transitions, 2364 flow, removed 10 selfloop flow, removed 2 redundant places. [2021-06-10 11:14:36,401 INFO L241 Difference]: Finished difference. Result has 161 places, 244 transitions, 1965 flow [2021-06-10 11:14:36,402 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=110, PETRI_DIFFERENCE_MINUEND_FLOW=1473, PETRI_DIFFERENCE_MINUEND_PLACES=145, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=215, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=61, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=153, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=1965, PETRI_PLACES=161, PETRI_TRANSITIONS=244} [2021-06-10 11:14:36,402 INFO L343 CegarLoopForPetriNet]: 92 programPoint places, 69 predicate places. [2021-06-10 11:14:36,402 INFO L480 AbstractCegarLoop]: Abstraction has has 161 places, 244 transitions, 1965 flow [2021-06-10 11:14:36,402 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 91.0) internal successors, (546), 6 states have internal predecessors, (546), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-10 11:14:36,402 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-10 11:14:36,403 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-10 11:14:36,403 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-06-10 11:14:36,403 INFO L428 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr3INUSE_VIOLATION, readerErr0ASSERT_VIOLATIONERROR_FUNCTION, readerErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, readerErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2021-06-10 11:14:36,403 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-10 11:14:36,403 INFO L82 PathProgramCache]: Analyzing trace with hash 316717725, now seen corresponding path program 1 times [2021-06-10 11:14:36,404 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-10 11:14:36,404 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [24643322] [2021-06-10 11:14:36,404 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-10 11:14:36,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-10 11:14:36,434 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 11:14:36,435 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-10 11:14:36,435 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 11:14:36,436 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-10 11:14:36,438 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 11:14:36,438 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-10 11:14:36,441 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 11:14:36,442 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-10 11:14:36,445 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 11:14:36,446 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-10 11:14:36,450 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 11:14:36,450 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-10 11:14:36,450 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 11:14:36,451 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-10 11:14:36,451 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-10 11:14:36,451 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [24643322] [2021-06-10 11:14:36,451 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-10 11:14:36,451 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-06-10 11:14:36,451 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [281424453] [2021-06-10 11:14:36,452 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-06-10 11:14:36,452 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-10 11:14:36,452 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-06-10 11:14:36,452 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-06-10 11:14:36,453 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 95 out of 110 [2021-06-10 11:14:36,454 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 161 places, 244 transitions, 1965 flow. Second operand has 6 states, 6 states have (on average 96.66666666666667) internal successors, (580), 6 states have internal predecessors, (580), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-10 11:14:36,454 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-10 11:14:36,454 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 95 of 110 [2021-06-10 11:14:36,454 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-10 11:14:37,198 INFO L129 PetriNetUnfolder]: 1195/5426 cut-off events. [2021-06-10 11:14:37,199 INFO L130 PetriNetUnfolder]: For 6686/6875 co-relation queries the response was YES. [2021-06-10 11:14:37,241 INFO L84 FinitePrefix]: Finished finitePrefix Result has 10390 conditions, 5426 events. 1195/5426 cut-off events. For 6686/6875 co-relation queries the response was YES. Maximal size of possible extension queue 529. Compared 65027 event pairs, 31 based on Foata normal form. 85/5356 useless extension candidates. Maximal degree in co-relation 9734. Up to 802 conditions per place. [2021-06-10 11:14:37,254 INFO L132 encePairwiseOnDemand]: 102/110 looper letters, 53 selfloop transitions, 15 changer transitions 26/270 dead transitions. [2021-06-10 11:14:37,254 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 169 places, 270 transitions, 2219 flow [2021-06-10 11:14:37,254 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-10 11:14:37,255 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-06-10 11:14:37,256 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 907 transitions. [2021-06-10 11:14:37,257 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.9161616161616162 [2021-06-10 11:14:37,257 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 907 transitions. [2021-06-10 11:14:37,257 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 907 transitions. [2021-06-10 11:14:37,257 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-10 11:14:37,257 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 907 transitions. [2021-06-10 11:14:37,259 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 100.77777777777777) internal successors, (907), 9 states have internal predecessors, (907), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-10 11:14:37,261 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 110.0) internal successors, (1100), 10 states have internal predecessors, (1100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-10 11:14:37,262 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 110.0) internal successors, (1100), 10 states have internal predecessors, (1100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-10 11:14:37,262 INFO L185 Difference]: Start difference. First operand has 161 places, 244 transitions, 1965 flow. Second operand 9 states and 907 transitions. [2021-06-10 11:14:37,262 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 169 places, 270 transitions, 2219 flow [2021-06-10 11:14:37,312 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 165 places, 270 transitions, 2105 flow, removed 14 selfloop flow, removed 4 redundant places. [2021-06-10 11:14:37,316 INFO L241 Difference]: Finished difference. Result has 169 places, 225 transitions, 1658 flow [2021-06-10 11:14:37,317 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=110, PETRI_DIFFERENCE_MINUEND_FLOW=1603, PETRI_DIFFERENCE_MINUEND_PLACES=157, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=225, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=213, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=1658, PETRI_PLACES=169, PETRI_TRANSITIONS=225} [2021-06-10 11:14:37,317 INFO L343 CegarLoopForPetriNet]: 92 programPoint places, 77 predicate places. [2021-06-10 11:14:37,317 INFO L480 AbstractCegarLoop]: Abstraction has has 169 places, 225 transitions, 1658 flow [2021-06-10 11:14:37,317 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 96.66666666666667) internal successors, (580), 6 states have internal predecessors, (580), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-10 11:14:37,317 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-10 11:14:37,317 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-10 11:14:37,317 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-06-10 11:14:37,318 INFO L428 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr3INUSE_VIOLATION, readerErr0ASSERT_VIOLATIONERROR_FUNCTION, readerErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, readerErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2021-06-10 11:14:37,318 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-10 11:14:37,318 INFO L82 PathProgramCache]: Analyzing trace with hash 1885315355, now seen corresponding path program 2 times [2021-06-10 11:14:37,319 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-10 11:14:37,319 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1811029723] [2021-06-10 11:14:37,319 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-10 11:14:37,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-06-10 11:14:37,343 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-06-10 11:14:37,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-06-10 11:14:37,380 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-06-10 11:14:37,416 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-06-10 11:14:37,417 INFO L634 BasicCegarLoop]: Counterexample might be feasible [2021-06-10 11:14:37,417 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-06-10 11:14:37,466 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.06 11:14:37 BasicIcfg [2021-06-10 11:14:37,466 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-06-10 11:14:37,467 INFO L168 Benchmark]: Toolchain (without parser) took 6577.82 ms. Allocated memory was 352.3 MB in the beginning and 622.9 MB in the end (delta: 270.5 MB). Free memory was 314.4 MB in the beginning and 346.2 MB in the end (delta: -31.8 MB). Peak memory consumption was 239.4 MB. Max. memory is 16.0 GB. [2021-06-10 11:14:37,467 INFO L168 Benchmark]: CDTParser took 0.12 ms. Allocated memory is still 352.3 MB. Free memory is still 332.5 MB. There was no memory consumed. Max. memory is 16.0 GB. [2021-06-10 11:14:37,467 INFO L168 Benchmark]: CACSL2BoogieTranslator took 485.94 ms. Allocated memory is still 352.3 MB. Free memory was 314.2 MB in the beginning and 314.0 MB in the end (delta: 197.8 kB). Peak memory consumption was 6.9 MB. Max. memory is 16.0 GB. [2021-06-10 11:14:37,468 INFO L168 Benchmark]: Boogie Procedure Inliner took 58.92 ms. Allocated memory is still 352.3 MB. Free memory was 314.0 MB in the beginning and 311.9 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-06-10 11:14:37,468 INFO L168 Benchmark]: Boogie Preprocessor took 29.89 ms. Allocated memory is still 352.3 MB. Free memory was 311.9 MB in the beginning and 310.2 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-06-10 11:14:37,468 INFO L168 Benchmark]: RCFGBuilder took 435.37 ms. Allocated memory is still 352.3 MB. Free memory was 310.2 MB in the beginning and 278.4 MB in the end (delta: 31.8 MB). Peak memory consumption was 31.5 MB. Max. memory is 16.0 GB. [2021-06-10 11:14:37,469 INFO L168 Benchmark]: TraceAbstraction took 5560.68 ms. Allocated memory was 352.3 MB in the beginning and 622.9 MB in the end (delta: 270.5 MB). Free memory was 278.4 MB in the beginning and 346.2 MB in the end (delta: -67.8 MB). Peak memory consumption was 204.8 MB. Max. memory is 16.0 GB. [2021-06-10 11:14:37,471 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12 ms. Allocated memory is still 352.3 MB. Free memory is still 332.5 MB. There was no memory consumed. Max. memory is 16.0 GB. * CACSL2BoogieTranslator took 485.94 ms. Allocated memory is still 352.3 MB. Free memory was 314.2 MB in the beginning and 314.0 MB in the end (delta: 197.8 kB). Peak memory consumption was 6.9 MB. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 58.92 ms. Allocated memory is still 352.3 MB. Free memory was 314.0 MB in the beginning and 311.9 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * Boogie Preprocessor took 29.89 ms. Allocated memory is still 352.3 MB. Free memory was 311.9 MB in the beginning and 310.2 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * RCFGBuilder took 435.37 ms. Allocated memory is still 352.3 MB. Free memory was 310.2 MB in the beginning and 278.4 MB in the end (delta: 31.8 MB). Peak memory consumption was 31.5 MB. Max. memory is 16.0 GB. * TraceAbstraction took 5560.68 ms. Allocated memory was 352.3 MB in the beginning and 622.9 MB in the end (delta: 270.5 MB). Free memory was 278.4 MB in the beginning and 346.2 MB in the end (delta: -67.8 MB). Peak memory consumption was 204.8 MB. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 738]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L704] 0 int w=0, r=0, x, y; VAL [r=0, w=0, x=0, y=0] [L748] 0 pthread_t t1, t2, t3, t4; VAL [r=0, w=0, x=0, y=0] [L749] FCALL, FORK 0 pthread_create(&t1, 0, writer, 0) VAL [r=0, w=0, x=0, y=0] [L750] FCALL, FORK 0 pthread_create(&t2, 0, reader, 0) VAL [r=0, w=0, x=0, y=0] [L724] 2 int l; VAL [r=0, w=0, x=0, y=0] [L725] CALL 2 __VERIFIER_atomic_take_read_lock() [L710] CALL 2 assume_abort_if_not(w==0) [L3] COND FALSE 2 !(!cond) [L710] RET 2 assume_abort_if_not(w==0) [L711] 2 r = r+1 [L725] RET 2 __VERIFIER_atomic_take_read_lock() [L727] 2 l = x VAL [r=1, w=0, x=0, y=0] [L730] 2 y = l VAL [r=1, w=0, x=0, y=0] [L733] 2 int ly = y; VAL [r=1, w=0, x=0, y=0] [L736] 2 int lx = x; VAL [r=1, w=0, x=0, y=0] [L738] COND FALSE 2 !(!(ly == lx)) VAL [r=1, w=0, x=0, y=0] [L740] 2 l = r-1 VAL [r=1, w=0, x=0, y=0] [L751] FCALL, FORK 0 pthread_create(&t3, 0, writer, 0) VAL [r=1, w=0, x=0, y=0] [L752] FCALL, FORK 0 pthread_create(&t4, 0, reader, 0) VAL [r=1, w=0, x=0, y=0] [L724] 4 int l; VAL [r=1, w=0, x=0, y=0] [L725] CALL 4 __VERIFIER_atomic_take_read_lock() [L710] CALL 4 assume_abort_if_not(w==0) [L3] COND FALSE 4 !(!cond) [L710] RET 4 assume_abort_if_not(w==0) [L711] 4 r = r+1 [L725] RET 4 __VERIFIER_atomic_take_read_lock() [L727] 4 l = x VAL [r=2, w=0, x=0, y=0] [L730] 4 y = l VAL [r=2, w=0, x=0, y=0] [L733] 4 int ly = y; VAL [r=2, w=0, x=0, y=0] [L743] 2 r = l VAL [r=0, w=0, x=0, y=0] [L714] CALL 1 __VERIFIER_atomic_take_write_lock() [L706] CALL 1 assume_abort_if_not(w==0 && r==0) [L3] COND FALSE 1 !(!cond) [L706] RET 1 assume_abort_if_not(w==0 && r==0) [L707] 1 w = 1 [L714] RET 1 __VERIFIER_atomic_take_write_lock() [L716] 1 x = 3 VAL [r=0, w=1, x=3, y=0] [L736] 4 int lx = x; VAL [r=0, w=1, x=3, y=0] [L738] COND TRUE 4 !(ly == lx) VAL [r=0, w=1, x=3, y=0] [L738] 4 reach_error() VAL [r=0, w=1, x=3, y=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 75 locations, 1 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 11.0ms, RemoveRedundantFlowTime: 0.0ms, RemoveRedundantFlowUnfoldingTime: 0.0ms, BackfoldingTime: 0.0ms, BackfoldingUnfoldingTime: 0.0ms, FlowIncreaseByBackfolding: 0, BasicCegarLoop: VerificationResult: UNSAFE, OverallTime: 5397.1ms, OverallIterations: 8, TraceHistogramMax: 1, EmptinessCheckTime: 0.0ms, AutomataDifference: 4531.1ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 65.2ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 164 SDtfs, 276 SDslu, 215 SDs, 0 SdLazy, 616 SolverSat, 23 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 315.4ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 75 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 99 ImplicationChecksByTransitivity, 289.5ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=1965occurred in iteration=6, InterpolantAutomatonStates: 66, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 26.4ms SsaConstructionTime, 149.6ms SatisfiabilityAnalysisTime, 360.7ms InterpolantComputationTime, 320 NumberOfCodeBlocks, 320 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 263 ConstructedInterpolants, 0 QuantifiedInterpolants, 425 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 7 InterpolantComputations, 7 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 proved your program to be incorrect! Received shutdown request...