/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-After.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread-atomic/lamport.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-bf34d27 [2022-01-19 10:24:07,915 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-01-19 10:24:07,917 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-01-19 10:24:07,954 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-01-19 10:24:07,954 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-01-19 10:24:07,955 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-01-19 10:24:07,956 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-01-19 10:24:07,957 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-01-19 10:24:07,958 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-01-19 10:24:07,958 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-01-19 10:24:07,959 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-01-19 10:24:07,975 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-01-19 10:24:07,975 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-01-19 10:24:07,979 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-01-19 10:24:07,980 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-01-19 10:24:07,982 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-01-19 10:24:07,983 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-01-19 10:24:07,984 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-01-19 10:24:07,987 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-01-19 10:24:07,991 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-01-19 10:24:07,992 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-01-19 10:24:07,994 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-01-19 10:24:07,995 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-01-19 10:24:07,995 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-01-19 10:24:07,996 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-01-19 10:24:07,996 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-01-19 10:24:07,997 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-01-19 10:24:07,997 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-01-19 10:24:07,997 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-01-19 10:24:07,998 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-01-19 10:24:07,998 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-01-19 10:24:07,998 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-01-19 10:24:07,999 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-01-19 10:24:07,999 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-01-19 10:24:08,000 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-01-19 10:24:08,000 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-01-19 10:24:08,000 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-01-19 10:24:08,000 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-01-19 10:24:08,000 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-01-19 10:24:08,001 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-01-19 10:24:08,001 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-01-19 10:24:08,006 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-After.epf [2022-01-19 10:24:08,020 INFO L113 SettingsManager]: Loading preferences was successful [2022-01-19 10:24:08,020 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-01-19 10:24:08,021 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-01-19 10:24:08,021 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-01-19 10:24:08,021 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-01-19 10:24:08,021 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-01-19 10:24:08,021 INFO L138 SettingsManager]: * Use SBE=true [2022-01-19 10:24:08,021 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-01-19 10:24:08,021 INFO L138 SettingsManager]: * sizeof long=4 [2022-01-19 10:24:08,022 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-01-19 10:24:08,022 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-01-19 10:24:08,022 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-01-19 10:24:08,022 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-01-19 10:24:08,022 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-01-19 10:24:08,022 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-01-19 10:24:08,022 INFO L138 SettingsManager]: * sizeof long double=12 [2022-01-19 10:24:08,022 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-01-19 10:24:08,022 INFO L138 SettingsManager]: * Use constant arrays=true [2022-01-19 10:24:08,022 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-01-19 10:24:08,022 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-01-19 10:24:08,022 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-01-19 10:24:08,023 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-01-19 10:24:08,023 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-01-19 10:24:08,023 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-19 10:24:08,023 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-01-19 10:24:08,023 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-01-19 10:24:08,023 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-01-19 10:24:08,023 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-01-19 10:24:08,023 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-01-19 10:24:08,023 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-01-19 10:24:08,023 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-01-19 10:24:08,023 INFO L138 SettingsManager]: * When to check the insufficient erros location relative to the other error locations=AFTER [2022-01-19 10:24:08,024 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-01-19 10:24:08,176 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-01-19 10:24:08,194 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-01-19 10:24:08,196 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-01-19 10:24:08,197 INFO L271 PluginConnector]: Initializing CDTParser... [2022-01-19 10:24:08,197 INFO L275 PluginConnector]: CDTParser initialized [2022-01-19 10:24:08,198 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-atomic/lamport.i [2022-01-19 10:24:08,236 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1133ed033/267e3a6afe944a6bb7e0cf9773a89885/FLAG311cd607f [2022-01-19 10:24:08,546 INFO L306 CDTParser]: Found 1 translation units. [2022-01-19 10:24:08,547 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-atomic/lamport.i [2022-01-19 10:24:08,559 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1133ed033/267e3a6afe944a6bb7e0cf9773a89885/FLAG311cd607f [2022-01-19 10:24:08,949 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1133ed033/267e3a6afe944a6bb7e0cf9773a89885 [2022-01-19 10:24:08,950 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-01-19 10:24:08,951 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-01-19 10:24:08,962 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-01-19 10:24:08,962 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-01-19 10:24:08,964 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-01-19 10:24:08,964 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.01 10:24:08" (1/1) ... [2022-01-19 10:24:08,965 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@75aa783 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 10:24:08, skipping insertion in model container [2022-01-19 10:24:08,965 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.01 10:24:08" (1/1) ... [2022-01-19 10:24:08,969 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-01-19 10:24:09,018 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-19 10:24:09,227 WARN L610 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-01-19 10:24:09,297 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-atomic/lamport.i[32156,32169] [2022-01-19 10:24:09,301 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-atomic/lamport.i[34083,34096] [2022-01-19 10:24:09,305 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-19 10:24:09,314 INFO L203 MainTranslator]: Completed pre-run [2022-01-19 10:24:09,335 WARN L610 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-01-19 10:24:09,360 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-atomic/lamport.i[32156,32169] [2022-01-19 10:24:09,363 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-atomic/lamport.i[34083,34096] [2022-01-19 10:24:09,365 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-19 10:24:09,396 INFO L208 MainTranslator]: Completed translation [2022-01-19 10:24:09,396 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 10:24:09 WrapperNode [2022-01-19 10:24:09,396 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-01-19 10:24:09,397 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-01-19 10:24:09,397 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-01-19 10:24:09,397 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-01-19 10:24:09,401 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 10:24:09" (1/1) ... [2022-01-19 10:24:09,412 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 10:24:09" (1/1) ... [2022-01-19 10:24:09,427 INFO L137 Inliner]: procedures = 171, calls = 83, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 44 [2022-01-19 10:24:09,428 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-01-19 10:24:09,428 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-01-19 10:24:09,428 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-01-19 10:24:09,428 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-01-19 10:24:09,434 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 10:24:09" (1/1) ... [2022-01-19 10:24:09,434 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 10:24:09" (1/1) ... [2022-01-19 10:24:09,449 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 10:24:09" (1/1) ... [2022-01-19 10:24:09,449 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 10:24:09" (1/1) ... [2022-01-19 10:24:09,453 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 10:24:09" (1/1) ... [2022-01-19 10:24:09,456 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 10:24:09" (1/1) ... [2022-01-19 10:24:09,457 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 10:24:09" (1/1) ... [2022-01-19 10:24:09,458 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-01-19 10:24:09,459 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-01-19 10:24:09,459 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-01-19 10:24:09,459 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-01-19 10:24:09,475 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 10:24:09" (1/1) ... [2022-01-19 10:24:09,481 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-19 10:24:09,491 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-19 10:24:09,511 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-01-19 10:24:09,540 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-01-19 10:24:09,552 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-01-19 10:24:09,552 INFO L130 BoogieDeclarations]: Found specification of procedure thr2 [2022-01-19 10:24:09,552 INFO L138 BoogieDeclarations]: Found implementation of procedure thr2 [2022-01-19 10:24:09,553 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2022-01-19 10:24:09,553 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2022-01-19 10:24:09,553 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-01-19 10:24:09,553 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-01-19 10:24:09,553 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-01-19 10:24:09,553 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-01-19 10:24:09,553 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-01-19 10:24:09,553 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-01-19 10:24:09,553 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-01-19 10:24:09,554 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-01-19 10:24:09,554 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-01-19 10:24:09,555 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-01-19 10:24:09,678 INFO L234 CfgBuilder]: Building ICFG [2022-01-19 10:24:09,679 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-01-19 10:24:09,811 INFO L275 CfgBuilder]: Performing block encoding [2022-01-19 10:24:09,816 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-01-19 10:24:09,816 INFO L299 CfgBuilder]: Removed 8 assume(true) statements. [2022-01-19 10:24:09,817 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.01 10:24:09 BoogieIcfgContainer [2022-01-19 10:24:09,817 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-01-19 10:24:09,818 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-01-19 10:24:09,818 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-01-19 10:24:09,821 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-01-19 10:24:09,821 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.01 10:24:08" (1/3) ... [2022-01-19 10:24:09,821 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3abc8399 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.01 10:24:09, skipping insertion in model container [2022-01-19 10:24:09,821 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 10:24:09" (2/3) ... [2022-01-19 10:24:09,821 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3abc8399 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.01 10:24:09, skipping insertion in model container [2022-01-19 10:24:09,821 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.01 10:24:09" (3/3) ... [2022-01-19 10:24:09,822 INFO L111 eAbstractionObserver]: Analyzing ICFG lamport.i [2022-01-19 10:24:09,825 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-01-19 10:24:09,825 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-01-19 10:24:09,826 INFO L534 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-01-19 10:24:09,847 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#in~_.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 10:24:09,847 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#in~_.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 10:24:09,847 WARN L322 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~_.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 10:24:09,847 WARN L322 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~_.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 10:24:09,847 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#in~_.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 10:24:09,847 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#in~_.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 10:24:09,847 WARN L322 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~_.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 10:24:09,848 WARN L322 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~_.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 10:24:09,848 WARN L322 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~y2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 10:24:09,848 WARN L322 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~y2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 10:24:09,849 WARN L322 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~y2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 10:24:09,849 WARN L322 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~y2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 10:24:09,849 WARN L322 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~y2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 10:24:09,849 WARN L322 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~y2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 10:24:09,849 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 10:24:09,849 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 10:24:09,849 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 10:24:09,849 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 10:24:09,850 WARN L322 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~y2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 10:24:09,850 WARN L322 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~y2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 10:24:09,850 WARN L322 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~x2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 10:24:09,850 WARN L322 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~x2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 10:24:09,850 WARN L322 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~y2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 10:24:09,850 WARN L322 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~y2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 10:24:09,850 WARN L322 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~y2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 10:24:09,850 WARN L322 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~y2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 10:24:09,851 WARN L322 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~x2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 10:24:09,851 WARN L322 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~x2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 10:24:09,851 WARN L322 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~x2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 10:24:09,851 WARN L322 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~x2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 10:24:09,851 WARN L322 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~y2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 10:24:09,851 WARN L322 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~y2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 10:24:09,851 WARN L322 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~b12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 10:24:09,852 WARN L322 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~b12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 10:24:09,852 WARN L322 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~b12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 10:24:09,852 WARN L322 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~b12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 10:24:09,852 WARN L322 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~b12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 10:24:09,852 WARN L322 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~b12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 10:24:09,852 WARN L322 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~y2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 10:24:09,852 WARN L322 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~y2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 10:24:09,853 WARN L322 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~b12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 10:24:09,853 WARN L322 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~b12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 10:24:09,853 WARN L322 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~y2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 10:24:09,853 WARN L322 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~y2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 10:24:09,853 WARN L322 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~y2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 10:24:09,853 WARN L322 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~y2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 10:24:09,853 WARN L322 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~y2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 10:24:09,853 WARN L322 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~y2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 10:24:09,853 WARN L322 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~y2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 10:24:09,854 WARN L322 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~y2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 10:24:09,854 WARN L322 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~y2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 10:24:09,854 WARN L322 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~y2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 10:24:09,854 WARN L322 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~y2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 10:24:09,854 WARN L322 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~y2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 10:24:09,855 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#in~_.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 10:24:09,855 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#in~_.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 10:24:09,855 WARN L322 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~_.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 10:24:09,855 WARN L322 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~_.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 10:24:09,855 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#in~_.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 10:24:09,855 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#in~_.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 10:24:09,855 WARN L322 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~_.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 10:24:09,855 WARN L322 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~_.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 10:24:09,856 WARN L322 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~y1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 10:24:09,856 WARN L322 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~y1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 10:24:09,856 WARN L322 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~y1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 10:24:09,856 WARN L322 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~y1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 10:24:09,856 WARN L322 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~y1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 10:24:09,856 WARN L322 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~y1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 10:24:09,856 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 10:24:09,857 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 10:24:09,857 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 10:24:09,857 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 10:24:09,857 WARN L322 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~y1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 10:24:09,857 WARN L322 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~y1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 10:24:09,857 WARN L322 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~x1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 10:24:09,857 WARN L322 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~x1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 10:24:09,858 WARN L322 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~y1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 10:24:09,858 WARN L322 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~y1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 10:24:09,858 WARN L322 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~y1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 10:24:09,858 WARN L322 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~y1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 10:24:09,858 WARN L322 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~x1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 10:24:09,858 WARN L322 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~x1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 10:24:09,858 WARN L322 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~x1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 10:24:09,858 WARN L322 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~x1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 10:24:09,858 WARN L322 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~y1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 10:24:09,859 WARN L322 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~y1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 10:24:09,859 WARN L322 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~b21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 10:24:09,859 WARN L322 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~b21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 10:24:09,859 WARN L322 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~b21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 10:24:09,859 WARN L322 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~b21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 10:24:09,859 WARN L322 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~b21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 10:24:09,860 WARN L322 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~b21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 10:24:09,860 WARN L322 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~y1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 10:24:09,860 WARN L322 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~y1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 10:24:09,860 WARN L322 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~b21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 10:24:09,860 WARN L322 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~b21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 10:24:09,860 WARN L322 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~y1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 10:24:09,860 WARN L322 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~y1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 10:24:09,860 WARN L322 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~y1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 10:24:09,861 WARN L322 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~y1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 10:24:09,861 WARN L322 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~y1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 10:24:09,861 WARN L322 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~y1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 10:24:09,861 WARN L322 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~y1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 10:24:09,861 WARN L322 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~y1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 10:24:09,861 WARN L322 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~y1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 10:24:09,861 WARN L322 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~y1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 10:24:09,861 WARN L322 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~y1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 10:24:09,861 WARN L322 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~y1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 10:24:09,864 WARN L322 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~_.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 10:24:09,864 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 10:24:09,864 WARN L322 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~y1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 10:24:09,864 WARN L322 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~b21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 10:24:09,864 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 10:24:09,864 WARN L322 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~x1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 10:24:09,864 WARN L322 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~_.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 10:24:09,866 WARN L322 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~_.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 10:24:09,866 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 10:24:09,866 WARN L322 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~b12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 10:24:09,866 WARN L322 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~x2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 10:24:09,866 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 10:24:09,867 WARN L322 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~y2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 10:24:09,867 WARN L322 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~_.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 10:24:09,869 INFO L148 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2022-01-19 10:24:09,904 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-01-19 10:24:09,909 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2022-01-19 10:24:09,909 INFO L340 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2022-01-19 10:24:09,916 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 116 places, 133 transitions, 282 flow [2022-01-19 10:24:09,961 INFO L129 PetriNetUnfolder]: 24/131 cut-off events. [2022-01-19 10:24:09,962 INFO L130 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-01-19 10:24:09,973 INFO L84 FinitePrefix]: Finished finitePrefix Result has 140 conditions, 131 events. 24/131 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 255 event pairs, 0 based on Foata normal form. 0/105 useless extension candidates. Maximal degree in co-relation 97. Up to 5 conditions per place. [2022-01-19 10:24:09,973 INFO L82 GeneralOperation]: Start removeDead. Operand has 116 places, 133 transitions, 282 flow [2022-01-19 10:24:09,977 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 104 places, 121 transitions, 251 flow [2022-01-19 10:24:09,982 INFO L129 PetriNetUnfolder]: 2/39 cut-off events. [2022-01-19 10:24:09,982 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-01-19 10:24:09,982 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 10:24:09,983 INFO L254 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] [2022-01-19 10:24:10,003 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION (and 2 more)] === [2022-01-19 10:24:10,009 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 10:24:10,009 INFO L85 PathProgramCache]: Analyzing trace with hash 513087575, now seen corresponding path program 1 times [2022-01-19 10:24:10,017 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 10:24:10,031 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [664058768] [2022-01-19 10:24:10,031 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 10:24:10,032 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 10:24:10,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 10:24:10,186 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-19 10:24:10,186 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 10:24:10,186 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [664058768] [2022-01-19 10:24:10,187 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [664058768] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 10:24:10,187 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 10:24:10,187 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-19 10:24:10,188 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1192677500] [2022-01-19 10:24:10,188 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 10:24:10,193 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-01-19 10:24:10,194 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 10:24:10,213 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-01-19 10:24:10,214 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-01-19 10:24:10,217 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 117 out of 133 [2022-01-19 10:24:10,220 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 104 places, 121 transitions, 251 flow. Second operand has 2 states, 2 states have (on average 118.0) internal successors, (236), 2 states have internal predecessors, (236), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 10:24:10,220 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 10:24:10,220 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 117 of 133 [2022-01-19 10:24:10,221 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 10:24:10,245 INFO L129 PetriNetUnfolder]: 12/109 cut-off events. [2022-01-19 10:24:10,245 INFO L130 PetriNetUnfolder]: For 5/6 co-relation queries the response was YES. [2022-01-19 10:24:10,246 INFO L84 FinitePrefix]: Finished finitePrefix Result has 121 conditions, 109 events. 12/109 cut-off events. For 5/6 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 199 event pairs, 0 based on Foata normal form. 20/115 useless extension candidates. Maximal degree in co-relation 86. Up to 4 conditions per place. [2022-01-19 10:24:10,247 INFO L132 encePairwiseOnDemand]: 121/133 looper letters, 3 selfloop transitions, 0 changer transitions 0/109 dead transitions. [2022-01-19 10:24:10,247 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 105 places, 109 transitions, 233 flow [2022-01-19 10:24:10,248 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-01-19 10:24:10,249 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2022-01-19 10:24:10,254 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 249 transitions. [2022-01-19 10:24:10,255 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.9360902255639098 [2022-01-19 10:24:10,256 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 249 transitions. [2022-01-19 10:24:10,256 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 249 transitions. [2022-01-19 10:24:10,257 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 10:24:10,258 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 249 transitions. [2022-01-19 10:24:10,260 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 124.5) internal successors, (249), 2 states have internal predecessors, (249), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 10:24:10,264 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 133.0) internal successors, (399), 3 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) [2022-01-19 10:24:10,264 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 133.0) internal successors, (399), 3 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) [2022-01-19 10:24:10,265 INFO L186 Difference]: Start difference. First operand has 104 places, 121 transitions, 251 flow. Second operand 2 states and 249 transitions. [2022-01-19 10:24:10,266 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 105 places, 109 transitions, 233 flow [2022-01-19 10:24:10,267 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 102 places, 109 transitions, 228 flow, removed 0 selfloop flow, removed 3 redundant places. [2022-01-19 10:24:10,270 INFO L242 Difference]: Finished difference. Result has 102 places, 109 transitions, 222 flow [2022-01-19 10:24:10,271 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=133, PETRI_DIFFERENCE_MINUEND_FLOW=222, PETRI_DIFFERENCE_MINUEND_PLACES=101, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=109, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=109, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=222, PETRI_PLACES=102, PETRI_TRANSITIONS=109} [2022-01-19 10:24:10,273 INFO L334 CegarLoopForPetriNet]: 104 programPoint places, -2 predicate places. [2022-01-19 10:24:10,273 INFO L470 AbstractCegarLoop]: Abstraction has has 102 places, 109 transitions, 222 flow [2022-01-19 10:24:10,273 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 118.0) internal successors, (236), 2 states have internal predecessors, (236), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 10:24:10,273 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 10:24:10,273 INFO L254 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] [2022-01-19 10:24:10,273 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-01-19 10:24:10,273 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION (and 2 more)] === [2022-01-19 10:24:10,274 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 10:24:10,274 INFO L85 PathProgramCache]: Analyzing trace with hash 659391114, now seen corresponding path program 1 times [2022-01-19 10:24:10,274 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 10:24:10,274 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [267522489] [2022-01-19 10:24:10,274 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 10:24:10,274 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 10:24:10,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 10:24:10,319 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-19 10:24:10,319 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 10:24:10,319 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [267522489] [2022-01-19 10:24:10,319 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [267522489] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 10:24:10,319 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 10:24:10,320 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-19 10:24:10,320 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [675329679] [2022-01-19 10:24:10,320 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 10:24:10,321 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-19 10:24:10,321 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 10:24:10,321 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-19 10:24:10,321 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-19 10:24:10,322 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 110 out of 133 [2022-01-19 10:24:10,322 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 102 places, 109 transitions, 222 flow. Second operand has 3 states, 3 states have (on average 111.33333333333333) internal successors, (334), 3 states have internal predecessors, (334), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 10:24:10,323 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 10:24:10,323 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 110 of 133 [2022-01-19 10:24:10,323 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 10:24:10,364 INFO L129 PetriNetUnfolder]: 31/215 cut-off events. [2022-01-19 10:24:10,364 INFO L130 PetriNetUnfolder]: For 7/7 co-relation queries the response was YES. [2022-01-19 10:24:10,365 INFO L84 FinitePrefix]: Finished finitePrefix Result has 270 conditions, 215 events. 31/215 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 737 event pairs, 4 based on Foata normal form. 0/186 useless extension candidates. Maximal degree in co-relation 267. Up to 24 conditions per place. [2022-01-19 10:24:10,366 INFO L132 encePairwiseOnDemand]: 128/133 looper letters, 11 selfloop transitions, 3 changer transitions 0/113 dead transitions. [2022-01-19 10:24:10,366 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 104 places, 113 transitions, 259 flow [2022-01-19 10:24:10,366 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-19 10:24:10,366 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-01-19 10:24:10,368 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 346 transitions. [2022-01-19 10:24:10,368 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8671679197994987 [2022-01-19 10:24:10,369 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 346 transitions. [2022-01-19 10:24:10,369 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 346 transitions. [2022-01-19 10:24:10,369 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 10:24:10,369 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 346 transitions. [2022-01-19 10:24:10,371 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 115.33333333333333) internal successors, (346), 3 states have internal predecessors, (346), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 10:24:10,373 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 133.0) internal successors, (532), 4 states have internal predecessors, (532), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 10:24:10,373 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 133.0) internal successors, (532), 4 states have internal predecessors, (532), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 10:24:10,373 INFO L186 Difference]: Start difference. First operand has 102 places, 109 transitions, 222 flow. Second operand 3 states and 346 transitions. [2022-01-19 10:24:10,373 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 104 places, 113 transitions, 259 flow [2022-01-19 10:24:10,374 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 104 places, 113 transitions, 259 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-01-19 10:24:10,376 INFO L242 Difference]: Finished difference. Result has 106 places, 110 transitions, 242 flow [2022-01-19 10:24:10,376 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=133, PETRI_DIFFERENCE_MINUEND_FLOW=222, PETRI_DIFFERENCE_MINUEND_PLACES=102, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=109, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=106, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=242, PETRI_PLACES=106, PETRI_TRANSITIONS=110} [2022-01-19 10:24:10,376 INFO L334 CegarLoopForPetriNet]: 104 programPoint places, 2 predicate places. [2022-01-19 10:24:10,376 INFO L470 AbstractCegarLoop]: Abstraction has has 106 places, 110 transitions, 242 flow [2022-01-19 10:24:10,377 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 111.33333333333333) internal successors, (334), 3 states have internal predecessors, (334), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 10:24:10,377 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 10:24:10,377 INFO L254 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] [2022-01-19 10:24:10,377 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-01-19 10:24:10,377 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting thr2Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION (and 2 more)] === [2022-01-19 10:24:10,377 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 10:24:10,378 INFO L85 PathProgramCache]: Analyzing trace with hash 685275118, now seen corresponding path program 1 times [2022-01-19 10:24:10,378 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 10:24:10,378 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [605304507] [2022-01-19 10:24:10,378 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 10:24:10,378 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 10:24:10,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 10:24:10,454 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-19 10:24:10,455 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 10:24:10,455 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [605304507] [2022-01-19 10:24:10,455 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [605304507] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 10:24:10,455 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 10:24:10,455 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-19 10:24:10,455 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1199980069] [2022-01-19 10:24:10,455 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 10:24:10,456 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-19 10:24:10,456 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 10:24:10,456 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-19 10:24:10,456 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-19 10:24:10,457 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 110 out of 133 [2022-01-19 10:24:10,457 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 106 places, 110 transitions, 242 flow. Second operand has 3 states, 3 states have (on average 111.66666666666667) internal successors, (335), 3 states have internal predecessors, (335), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 10:24:10,458 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 10:24:10,458 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 110 of 133 [2022-01-19 10:24:10,458 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 10:24:10,490 INFO L129 PetriNetUnfolder]: 25/196 cut-off events. [2022-01-19 10:24:10,490 INFO L130 PetriNetUnfolder]: For 24/24 co-relation queries the response was YES. [2022-01-19 10:24:10,491 INFO L84 FinitePrefix]: Finished finitePrefix Result has 265 conditions, 196 events. 25/196 cut-off events. For 24/24 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 620 event pairs, 5 based on Foata normal form. 7/181 useless extension candidates. Maximal degree in co-relation 260. Up to 22 conditions per place. [2022-01-19 10:24:10,492 INFO L132 encePairwiseOnDemand]: 129/133 looper letters, 9 selfloop transitions, 2 changer transitions 1/111 dead transitions. [2022-01-19 10:24:10,492 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 108 places, 111 transitions, 269 flow [2022-01-19 10:24:10,492 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-19 10:24:10,492 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-01-19 10:24:10,493 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 344 transitions. [2022-01-19 10:24:10,494 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8621553884711779 [2022-01-19 10:24:10,494 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 344 transitions. [2022-01-19 10:24:10,494 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 344 transitions. [2022-01-19 10:24:10,494 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 10:24:10,494 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 344 transitions. [2022-01-19 10:24:10,496 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 114.66666666666667) internal successors, (344), 3 states have internal predecessors, (344), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 10:24:10,497 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 133.0) internal successors, (532), 4 states have internal predecessors, (532), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 10:24:10,497 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 133.0) internal successors, (532), 4 states have internal predecessors, (532), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 10:24:10,498 INFO L186 Difference]: Start difference. First operand has 106 places, 110 transitions, 242 flow. Second operand 3 states and 344 transitions. [2022-01-19 10:24:10,498 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 108 places, 111 transitions, 269 flow [2022-01-19 10:24:10,499 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 106 places, 111 transitions, 263 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-01-19 10:24:10,500 INFO L242 Difference]: Finished difference. Result has 107 places, 110 transitions, 246 flow [2022-01-19 10:24:10,500 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=133, PETRI_DIFFERENCE_MINUEND_FLOW=236, PETRI_DIFFERENCE_MINUEND_PLACES=104, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=110, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=108, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=246, PETRI_PLACES=107, PETRI_TRANSITIONS=110} [2022-01-19 10:24:10,501 INFO L334 CegarLoopForPetriNet]: 104 programPoint places, 3 predicate places. [2022-01-19 10:24:10,501 INFO L470 AbstractCegarLoop]: Abstraction has has 107 places, 110 transitions, 246 flow [2022-01-19 10:24:10,501 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 111.66666666666667) internal successors, (335), 3 states have internal predecessors, (335), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 10:24:10,501 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 10:24:10,501 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-19 10:24:10,501 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-01-19 10:24:10,502 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION (and 2 more)] === [2022-01-19 10:24:10,502 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 10:24:10,502 INFO L85 PathProgramCache]: Analyzing trace with hash -1799529779, now seen corresponding path program 1 times [2022-01-19 10:24:10,502 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 10:24:10,502 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1719761545] [2022-01-19 10:24:10,502 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 10:24:10,502 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 10:24:10,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 10:24:10,548 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-19 10:24:10,548 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 10:24:10,549 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1719761545] [2022-01-19 10:24:10,549 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1719761545] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 10:24:10,549 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 10:24:10,549 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-19 10:24:10,549 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2079174495] [2022-01-19 10:24:10,549 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 10:24:10,549 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-19 10:24:10,549 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 10:24:10,550 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-19 10:24:10,550 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-19 10:24:10,551 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 92 out of 133 [2022-01-19 10:24:10,551 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 107 places, 110 transitions, 246 flow. Second operand has 4 states, 4 states have (on average 94.0) internal successors, (376), 4 states have internal predecessors, (376), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 10:24:10,551 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 10:24:10,551 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 92 of 133 [2022-01-19 10:24:10,551 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 10:24:10,733 INFO L129 PetriNetUnfolder]: 430/1239 cut-off events. [2022-01-19 10:24:10,734 INFO L130 PetriNetUnfolder]: For 85/85 co-relation queries the response was YES. [2022-01-19 10:24:10,736 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1999 conditions, 1239 events. 430/1239 cut-off events. For 85/85 co-relation queries the response was YES. Maximal size of possible extension queue 71. Compared 8086 event pairs, 60 based on Foata normal form. 0/1078 useless extension candidates. Maximal degree in co-relation 1993. Up to 300 conditions per place. [2022-01-19 10:24:10,740 INFO L132 encePairwiseOnDemand]: 119/133 looper letters, 47 selfloop transitions, 5 changer transitions 26/160 dead transitions. [2022-01-19 10:24:10,740 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 111 places, 160 transitions, 505 flow [2022-01-19 10:24:10,740 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-19 10:24:10,741 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-01-19 10:24:10,744 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 546 transitions. [2022-01-19 10:24:10,745 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8210526315789474 [2022-01-19 10:24:10,745 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 546 transitions. [2022-01-19 10:24:10,745 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 546 transitions. [2022-01-19 10:24:10,746 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 10:24:10,746 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 546 transitions. [2022-01-19 10:24:10,748 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 109.2) internal successors, (546), 5 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) [2022-01-19 10:24:10,750 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 133.0) internal successors, (798), 6 states have internal predecessors, (798), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 10:24:10,751 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 133.0) internal successors, (798), 6 states have internal predecessors, (798), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 10:24:10,751 INFO L186 Difference]: Start difference. First operand has 107 places, 110 transitions, 246 flow. Second operand 5 states and 546 transitions. [2022-01-19 10:24:10,751 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 111 places, 160 transitions, 505 flow [2022-01-19 10:24:10,754 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 110 places, 160 transitions, 503 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-01-19 10:24:10,758 INFO L242 Difference]: Finished difference. Result has 114 places, 115 transitions, 320 flow [2022-01-19 10:24:10,758 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=133, PETRI_DIFFERENCE_MINUEND_FLOW=244, PETRI_DIFFERENCE_MINUEND_PLACES=106, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=110, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=105, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=320, PETRI_PLACES=114, PETRI_TRANSITIONS=115} [2022-01-19 10:24:10,759 INFO L334 CegarLoopForPetriNet]: 104 programPoint places, 10 predicate places. [2022-01-19 10:24:10,759 INFO L470 AbstractCegarLoop]: Abstraction has has 114 places, 115 transitions, 320 flow [2022-01-19 10:24:10,759 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 94.0) internal successors, (376), 4 states have internal predecessors, (376), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 10:24:10,760 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 10:24:10,760 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-19 10:24:10,760 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-01-19 10:24:10,762 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION (and 2 more)] === [2022-01-19 10:24:10,766 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 10:24:10,766 INFO L85 PathProgramCache]: Analyzing trace with hash -928539297, now seen corresponding path program 2 times [2022-01-19 10:24:10,766 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 10:24:10,767 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [263849165] [2022-01-19 10:24:10,767 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 10:24:10,767 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 10:24:10,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 10:24:10,827 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-19 10:24:10,828 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 10:24:10,828 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [263849165] [2022-01-19 10:24:10,828 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [263849165] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 10:24:10,828 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 10:24:10,828 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-19 10:24:10,828 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [561249001] [2022-01-19 10:24:10,828 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 10:24:10,829 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-19 10:24:10,829 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 10:24:10,829 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-19 10:24:10,829 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-19 10:24:10,831 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 110 out of 133 [2022-01-19 10:24:10,831 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 114 places, 115 transitions, 320 flow. Second operand has 4 states, 4 states have (on average 112.0) internal successors, (448), 4 states have internal predecessors, (448), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 10:24:10,831 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 10:24:10,831 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 110 of 133 [2022-01-19 10:24:10,832 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 10:24:11,000 INFO L129 PetriNetUnfolder]: 324/1536 cut-off events. [2022-01-19 10:24:11,001 INFO L130 PetriNetUnfolder]: For 230/245 co-relation queries the response was YES. [2022-01-19 10:24:11,003 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2426 conditions, 1536 events. 324/1536 cut-off events. For 230/245 co-relation queries the response was YES. Maximal size of possible extension queue 66. Compared 11594 event pairs, 33 based on Foata normal form. 1/1357 useless extension candidates. Maximal degree in co-relation 2417. Up to 187 conditions per place. [2022-01-19 10:24:11,007 INFO L132 encePairwiseOnDemand]: 129/133 looper letters, 21 selfloop transitions, 6 changer transitions 0/132 dead transitions. [2022-01-19 10:24:11,007 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 117 places, 132 transitions, 410 flow [2022-01-19 10:24:11,007 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-19 10:24:11,007 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-01-19 10:24:11,008 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 578 transitions. [2022-01-19 10:24:11,008 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.869172932330827 [2022-01-19 10:24:11,008 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 578 transitions. [2022-01-19 10:24:11,008 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 578 transitions. [2022-01-19 10:24:11,009 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 10:24:11,009 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 578 transitions. [2022-01-19 10:24:11,010 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 115.6) internal successors, (578), 5 states have internal predecessors, (578), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 10:24:11,011 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 133.0) internal successors, (798), 6 states have internal predecessors, (798), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 10:24:11,011 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 133.0) internal successors, (798), 6 states have internal predecessors, (798), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 10:24:11,011 INFO L186 Difference]: Start difference. First operand has 114 places, 115 transitions, 320 flow. Second operand 5 states and 578 transitions. [2022-01-19 10:24:11,011 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 117 places, 132 transitions, 410 flow [2022-01-19 10:24:11,015 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 116 places, 132 transitions, 394 flow, removed 8 selfloop flow, removed 1 redundant places. [2022-01-19 10:24:11,017 INFO L242 Difference]: Finished difference. Result has 120 places, 121 transitions, 354 flow [2022-01-19 10:24:11,017 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=133, PETRI_DIFFERENCE_MINUEND_FLOW=304, PETRI_DIFFERENCE_MINUEND_PLACES=112, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=115, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=112, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=354, PETRI_PLACES=120, PETRI_TRANSITIONS=121} [2022-01-19 10:24:11,019 INFO L334 CegarLoopForPetriNet]: 104 programPoint places, 16 predicate places. [2022-01-19 10:24:11,019 INFO L470 AbstractCegarLoop]: Abstraction has has 120 places, 121 transitions, 354 flow [2022-01-19 10:24:11,020 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 112.0) internal successors, (448), 4 states have internal predecessors, (448), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 10:24:11,020 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 10:24:11,020 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-19 10:24:11,020 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-01-19 10:24:11,020 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION (and 2 more)] === [2022-01-19 10:24:11,020 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 10:24:11,020 INFO L85 PathProgramCache]: Analyzing trace with hash -907127399, now seen corresponding path program 3 times [2022-01-19 10:24:11,021 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 10:24:11,021 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1968045179] [2022-01-19 10:24:11,021 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 10:24:11,021 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 10:24:11,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 10:24:11,079 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-19 10:24:11,079 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 10:24:11,079 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1968045179] [2022-01-19 10:24:11,079 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1968045179] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 10:24:11,079 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 10:24:11,079 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-19 10:24:11,079 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [737382222] [2022-01-19 10:24:11,079 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 10:24:11,080 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-19 10:24:11,080 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 10:24:11,080 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-19 10:24:11,080 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-19 10:24:11,080 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 92 out of 133 [2022-01-19 10:24:11,081 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 120 places, 121 transitions, 354 flow. Second operand has 4 states, 4 states have (on average 94.0) internal successors, (376), 4 states have internal predecessors, (376), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 10:24:11,081 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 10:24:11,081 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 92 of 133 [2022-01-19 10:24:11,081 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 10:24:11,172 INFO L382 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([373] L777-->L780: Formula: (= 2 v_~x~0_1) InVars {} OutVars{~x~0=v_~x~0_1} AuxVars[] AssignedVars[~x~0][55], [Black: 130#(= (+ (- 1) ~X~0) 0), 104#L710true, 6#L846-4true, 133#true, Black: 138#(and (= thr2Thread1of1ForFork1_~y2~0 1) (= ~y~0 1)), 119#true, Black: 135#(= ~y~0 1), 147#(= 2 ~x~0), 156#true, thr2Thread1of1ForFork1InUse, Black: 145#true, Black: 148#(= 2 thr1Thread1of1ForFork0_~x1~0), 11#L780true, Black: 150#(and (= 2 ~x~0) (= 2 thr1Thread1of1ForFork0_~x1~0)), Black: 122#true]) [2022-01-19 10:24:11,172 INFO L384 tUnfolder$Statistics]: this new event has 55 ancestors and is cut-off event [2022-01-19 10:24:11,172 INFO L387 tUnfolder$Statistics]: existing Event has 39 ancestors and is cut-off event [2022-01-19 10:24:11,172 INFO L387 tUnfolder$Statistics]: existing Event has 47 ancestors and is cut-off event [2022-01-19 10:24:11,172 INFO L387 tUnfolder$Statistics]: existing Event has 47 ancestors and is cut-off event [2022-01-19 10:24:11,364 INFO L129 PetriNetUnfolder]: 1188/3819 cut-off events. [2022-01-19 10:24:11,364 INFO L130 PetriNetUnfolder]: For 1424/1482 co-relation queries the response was YES. [2022-01-19 10:24:11,373 INFO L84 FinitePrefix]: Finished finitePrefix Result has 7576 conditions, 3819 events. 1188/3819 cut-off events. For 1424/1482 co-relation queries the response was YES. Maximal size of possible extension queue 160. Compared 32603 event pairs, 155 based on Foata normal form. 27/3490 useless extension candidates. Maximal degree in co-relation 7564. Up to 885 conditions per place. [2022-01-19 10:24:11,383 INFO L132 encePairwiseOnDemand]: 119/133 looper letters, 63 selfloop transitions, 16 changer transitions 3/170 dead transitions. [2022-01-19 10:24:11,383 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 124 places, 170 transitions, 657 flow [2022-01-19 10:24:11,383 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-19 10:24:11,383 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-01-19 10:24:11,384 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 545 transitions. [2022-01-19 10:24:11,384 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8195488721804511 [2022-01-19 10:24:11,385 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 545 transitions. [2022-01-19 10:24:11,385 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 545 transitions. [2022-01-19 10:24:11,385 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 10:24:11,385 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 545 transitions. [2022-01-19 10:24:11,386 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 109.0) internal successors, (545), 5 states have internal predecessors, (545), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 10:24:11,387 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 133.0) internal successors, (798), 6 states have internal predecessors, (798), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 10:24:11,387 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 133.0) internal successors, (798), 6 states have internal predecessors, (798), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 10:24:11,388 INFO L186 Difference]: Start difference. First operand has 120 places, 121 transitions, 354 flow. Second operand 5 states and 545 transitions. [2022-01-19 10:24:11,388 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 124 places, 170 transitions, 657 flow [2022-01-19 10:24:11,391 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 124 places, 170 transitions, 657 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-01-19 10:24:11,393 INFO L242 Difference]: Finished difference. Result has 128 places, 134 transitions, 492 flow [2022-01-19 10:24:11,393 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=133, PETRI_DIFFERENCE_MINUEND_FLOW=354, PETRI_DIFFERENCE_MINUEND_PLACES=120, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=121, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=110, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=492, PETRI_PLACES=128, PETRI_TRANSITIONS=134} [2022-01-19 10:24:11,394 INFO L334 CegarLoopForPetriNet]: 104 programPoint places, 24 predicate places. [2022-01-19 10:24:11,395 INFO L470 AbstractCegarLoop]: Abstraction has has 128 places, 134 transitions, 492 flow [2022-01-19 10:24:11,395 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 94.0) internal successors, (376), 4 states have internal predecessors, (376), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 10:24:11,395 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 10:24:11,395 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-19 10:24:11,395 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-01-19 10:24:11,395 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION (and 2 more)] === [2022-01-19 10:24:11,396 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 10:24:11,396 INFO L85 PathProgramCache]: Analyzing trace with hash 2025051371, now seen corresponding path program 4 times [2022-01-19 10:24:11,396 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 10:24:11,396 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [651156993] [2022-01-19 10:24:11,396 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 10:24:11,396 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 10:24:11,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 10:24:11,442 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-19 10:24:11,442 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 10:24:11,442 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [651156993] [2022-01-19 10:24:11,442 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [651156993] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 10:24:11,443 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 10:24:11,443 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-19 10:24:11,445 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1188906037] [2022-01-19 10:24:11,445 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 10:24:11,445 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-19 10:24:11,446 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 10:24:11,448 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-19 10:24:11,449 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-19 10:24:11,449 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 110 out of 133 [2022-01-19 10:24:11,450 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 128 places, 134 transitions, 492 flow. Second operand has 4 states, 4 states have (on average 112.0) internal successors, (448), 4 states have internal predecessors, (448), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 10:24:11,450 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 10:24:11,450 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 110 of 133 [2022-01-19 10:24:11,450 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 10:24:11,734 INFO L129 PetriNetUnfolder]: 714/3354 cut-off events. [2022-01-19 10:24:11,734 INFO L130 PetriNetUnfolder]: For 1974/2058 co-relation queries the response was YES. [2022-01-19 10:24:11,744 INFO L84 FinitePrefix]: Finished finitePrefix Result has 6730 conditions, 3354 events. 714/3354 cut-off events. For 1974/2058 co-relation queries the response was YES. Maximal size of possible extension queue 131. Compared 30538 event pairs, 69 based on Foata normal form. 35/3246 useless extension candidates. Maximal degree in co-relation 6714. Up to 469 conditions per place. [2022-01-19 10:24:11,752 INFO L132 encePairwiseOnDemand]: 129/133 looper letters, 28 selfloop transitions, 11 changer transitions 0/157 dead transitions. [2022-01-19 10:24:11,752 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 132 places, 157 transitions, 673 flow [2022-01-19 10:24:11,753 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-19 10:24:11,753 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-01-19 10:24:11,753 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 580 transitions. [2022-01-19 10:24:11,754 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8721804511278195 [2022-01-19 10:24:11,754 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 580 transitions. [2022-01-19 10:24:11,754 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 580 transitions. [2022-01-19 10:24:11,754 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 10:24:11,754 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 580 transitions. [2022-01-19 10:24:11,755 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 116.0) internal successors, (580), 5 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) [2022-01-19 10:24:11,756 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 133.0) internal successors, (798), 6 states have internal predecessors, (798), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 10:24:11,757 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 133.0) internal successors, (798), 6 states have internal predecessors, (798), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 10:24:11,757 INFO L186 Difference]: Start difference. First operand has 128 places, 134 transitions, 492 flow. Second operand 5 states and 580 transitions. [2022-01-19 10:24:11,758 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 132 places, 157 transitions, 673 flow [2022-01-19 10:24:11,762 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 132 places, 157 transitions, 673 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-01-19 10:24:11,764 INFO L242 Difference]: Finished difference. Result has 136 places, 142 transitions, 586 flow [2022-01-19 10:24:11,764 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=133, PETRI_DIFFERENCE_MINUEND_FLOW=492, PETRI_DIFFERENCE_MINUEND_PLACES=128, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=134, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=128, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=586, PETRI_PLACES=136, PETRI_TRANSITIONS=142} [2022-01-19 10:24:11,764 INFO L334 CegarLoopForPetriNet]: 104 programPoint places, 32 predicate places. [2022-01-19 10:24:11,764 INFO L470 AbstractCegarLoop]: Abstraction has has 136 places, 142 transitions, 586 flow [2022-01-19 10:24:11,764 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 112.0) internal successors, (448), 4 states have internal predecessors, (448), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 10:24:11,764 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 10:24:11,765 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-19 10:24:11,765 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-01-19 10:24:11,765 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION (and 2 more)] === [2022-01-19 10:24:11,765 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 10:24:11,765 INFO L85 PathProgramCache]: Analyzing trace with hash 547816781, now seen corresponding path program 1 times [2022-01-19 10:24:11,765 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 10:24:11,765 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [758611523] [2022-01-19 10:24:11,765 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 10:24:11,766 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 10:24:11,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 10:24:11,790 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-19 10:24:11,790 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 10:24:11,790 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [758611523] [2022-01-19 10:24:11,790 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [758611523] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 10:24:11,790 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 10:24:11,790 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-19 10:24:11,791 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1764296357] [2022-01-19 10:24:11,791 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 10:24:11,791 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-19 10:24:11,791 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 10:24:11,791 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-19 10:24:11,791 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-19 10:24:11,792 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 108 out of 133 [2022-01-19 10:24:11,792 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 136 places, 142 transitions, 586 flow. Second operand has 4 states, 4 states have (on average 109.5) internal successors, (438), 4 states have internal predecessors, (438), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 10:24:11,792 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 10:24:11,792 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 108 of 133 [2022-01-19 10:24:11,792 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 10:24:11,998 INFO L129 PetriNetUnfolder]: 672/3164 cut-off events. [2022-01-19 10:24:11,998 INFO L130 PetriNetUnfolder]: For 1587/1642 co-relation queries the response was YES. [2022-01-19 10:24:12,007 INFO L84 FinitePrefix]: Finished finitePrefix Result has 6489 conditions, 3164 events. 672/3164 cut-off events. For 1587/1642 co-relation queries the response was YES. Maximal size of possible extension queue 128. Compared 29350 event pairs, 75 based on Foata normal form. 15/3057 useless extension candidates. Maximal degree in co-relation 6469. Up to 385 conditions per place. [2022-01-19 10:24:12,013 INFO L132 encePairwiseOnDemand]: 126/133 looper letters, 15 selfloop transitions, 10 changer transitions 5/155 dead transitions. [2022-01-19 10:24:12,013 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 140 places, 155 transitions, 659 flow [2022-01-19 10:24:12,014 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-19 10:24:12,014 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-01-19 10:24:12,015 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 569 transitions. [2022-01-19 10:24:12,015 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8556390977443609 [2022-01-19 10:24:12,015 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 569 transitions. [2022-01-19 10:24:12,015 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 569 transitions. [2022-01-19 10:24:12,015 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 10:24:12,015 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 569 transitions. [2022-01-19 10:24:12,016 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 113.8) internal successors, (569), 5 states have internal predecessors, (569), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 10:24:12,017 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 133.0) internal successors, (798), 6 states have internal predecessors, (798), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 10:24:12,017 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 133.0) internal successors, (798), 6 states have internal predecessors, (798), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 10:24:12,017 INFO L186 Difference]: Start difference. First operand has 136 places, 142 transitions, 586 flow. Second operand 5 states and 569 transitions. [2022-01-19 10:24:12,017 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 140 places, 155 transitions, 659 flow [2022-01-19 10:24:12,022 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 140 places, 155 transitions, 655 flow, removed 2 selfloop flow, removed 0 redundant places. [2022-01-19 10:24:12,023 INFO L242 Difference]: Finished difference. Result has 143 places, 144 transitions, 615 flow [2022-01-19 10:24:12,023 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=133, PETRI_DIFFERENCE_MINUEND_FLOW=570, PETRI_DIFFERENCE_MINUEND_PLACES=136, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=140, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=134, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=615, PETRI_PLACES=143, PETRI_TRANSITIONS=144} [2022-01-19 10:24:12,025 INFO L334 CegarLoopForPetriNet]: 104 programPoint places, 39 predicate places. [2022-01-19 10:24:12,025 INFO L470 AbstractCegarLoop]: Abstraction has has 143 places, 144 transitions, 615 flow [2022-01-19 10:24:12,025 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 109.5) internal successors, (438), 4 states have internal predecessors, (438), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 10:24:12,025 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 10:24:12,025 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-19 10:24:12,025 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-01-19 10:24:12,026 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION (and 2 more)] === [2022-01-19 10:24:12,026 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 10:24:12,026 INFO L85 PathProgramCache]: Analyzing trace with hash 1481179120, now seen corresponding path program 1 times [2022-01-19 10:24:12,026 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 10:24:12,026 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1937478578] [2022-01-19 10:24:12,026 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 10:24:12,026 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 10:24:12,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 10:24:12,064 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-19 10:24:12,065 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 10:24:12,065 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1937478578] [2022-01-19 10:24:12,065 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1937478578] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 10:24:12,065 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 10:24:12,065 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-19 10:24:12,065 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [429755123] [2022-01-19 10:24:12,065 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 10:24:12,066 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-19 10:24:12,066 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 10:24:12,066 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-19 10:24:12,066 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-19 10:24:12,067 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 108 out of 133 [2022-01-19 10:24:12,067 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 143 places, 144 transitions, 615 flow. Second operand has 4 states, 4 states have (on average 109.5) internal successors, (438), 4 states have internal predecessors, (438), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 10:24:12,067 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 10:24:12,067 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 108 of 133 [2022-01-19 10:24:12,067 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 10:24:12,309 INFO L129 PetriNetUnfolder]: 633/2953 cut-off events. [2022-01-19 10:24:12,309 INFO L130 PetriNetUnfolder]: For 1382/1418 co-relation queries the response was YES. [2022-01-19 10:24:12,318 INFO L84 FinitePrefix]: Finished finitePrefix Result has 6389 conditions, 2953 events. 633/2953 cut-off events. For 1382/1418 co-relation queries the response was YES. Maximal size of possible extension queue 119. Compared 26314 event pairs, 63 based on Foata normal form. 8/2860 useless extension candidates. Maximal degree in co-relation 6365. Up to 364 conditions per place. [2022-01-19 10:24:12,320 INFO L132 encePairwiseOnDemand]: 126/133 looper letters, 0 selfloop transitions, 0 changer transitions 154/154 dead transitions. [2022-01-19 10:24:12,320 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 143 places, 154 transitions, 674 flow [2022-01-19 10:24:12,320 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-19 10:24:12,320 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-01-19 10:24:12,321 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 570 transitions. [2022-01-19 10:24:12,322 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8571428571428571 [2022-01-19 10:24:12,322 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 570 transitions. [2022-01-19 10:24:12,322 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 570 transitions. [2022-01-19 10:24:12,322 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 10:24:12,322 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 570 transitions. [2022-01-19 10:24:12,323 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 114.0) internal successors, (570), 5 states have internal predecessors, (570), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 10:24:12,324 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 133.0) internal successors, (798), 6 states have internal predecessors, (798), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 10:24:12,324 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 133.0) internal successors, (798), 6 states have internal predecessors, (798), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 10:24:12,324 INFO L186 Difference]: Start difference. First operand has 143 places, 144 transitions, 615 flow. Second operand 5 states and 570 transitions. [2022-01-19 10:24:12,324 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 143 places, 154 transitions, 674 flow [2022-01-19 10:24:12,331 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 142 places, 154 transitions, 660 flow, removed 6 selfloop flow, removed 1 redundant places. [2022-01-19 10:24:12,331 INFO L242 Difference]: Finished difference. Result has 142 places, 0 transitions, 0 flow [2022-01-19 10:24:12,332 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=133, PETRI_DIFFERENCE_MINUEND_FLOW=569, PETRI_DIFFERENCE_MINUEND_PLACES=138, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=138, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=138, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=0, PETRI_PLACES=142, PETRI_TRANSITIONS=0} [2022-01-19 10:24:12,332 INFO L334 CegarLoopForPetriNet]: 104 programPoint places, 38 predicate places. [2022-01-19 10:24:12,332 INFO L470 AbstractCegarLoop]: Abstraction has has 142 places, 0 transitions, 0 flow [2022-01-19 10:24:12,332 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 109.5) internal successors, (438), 4 states have internal predecessors, (438), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 10:24:12,334 INFO L764 garLoopResultBuilder]: Registering result SAFE for location thr2Err0ASSERT_VIOLATIONERROR_FUNCTION (5 of 6 remaining) [2022-01-19 10:24:12,334 INFO L764 garLoopResultBuilder]: Registering result SAFE for location thr1Err0ASSERT_VIOLATIONERROR_FUNCTION (4 of 6 remaining) [2022-01-19 10:24:12,334 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATION (3 of 6 remaining) [2022-01-19 10:24:12,335 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATION (2 of 6 remaining) [2022-01-19 10:24:12,335 INFO L764 garLoopResultBuilder]: Registering result SAFE for location thr2Err0ASSERT_VIOLATIONERROR_FUNCTION (1 of 6 remaining) [2022-01-19 10:24:12,337 INFO L764 garLoopResultBuilder]: Registering result SAFE for location thr1Err0ASSERT_VIOLATIONERROR_FUNCTION (0 of 6 remaining) [2022-01-19 10:24:12,338 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-01-19 10:24:12,341 INFO L732 BasicCegarLoop]: Path program histogram: [4, 1, 1, 1, 1, 1] [2022-01-19 10:24:12,343 INFO L230 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-01-19 10:24:12,343 INFO L180 ceAbstractionStarter]: Computing trace abstraction results [2022-01-19 10:24:12,347 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.01 10:24:12 BasicIcfg [2022-01-19 10:24:12,347 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-01-19 10:24:12,348 INFO L158 Benchmark]: Toolchain (without parser) took 3396.38ms. Allocated memory was 373.3MB in the beginning and 497.0MB in the end (delta: 123.7MB). Free memory was 317.9MB in the beginning and 376.6MB in the end (delta: -58.6MB). Peak memory consumption was 265.3MB. Max. memory is 16.0GB. [2022-01-19 10:24:12,348 INFO L158 Benchmark]: CDTParser took 0.09ms. Allocated memory is still 373.3MB. Free memory is still 335.3MB. There was no memory consumed. Max. memory is 16.0GB. [2022-01-19 10:24:12,349 INFO L158 Benchmark]: CACSL2BoogieTranslator took 434.09ms. Allocated memory is still 373.3MB. Free memory was 317.7MB in the beginning and 335.1MB in the end (delta: -17.4MB). Peak memory consumption was 16.3MB. Max. memory is 16.0GB. [2022-01-19 10:24:12,349 INFO L158 Benchmark]: Boogie Procedure Inliner took 30.94ms. Allocated memory is still 373.3MB. Free memory was 335.1MB in the beginning and 333.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2022-01-19 10:24:12,349 INFO L158 Benchmark]: Boogie Preprocessor took 30.22ms. Allocated memory is still 373.3MB. Free memory was 333.0MB in the beginning and 331.9MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2022-01-19 10:24:12,349 INFO L158 Benchmark]: RCFGBuilder took 358.43ms. Allocated memory is still 373.3MB. Free memory was 331.9MB in the beginning and 317.2MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.0GB. [2022-01-19 10:24:12,349 INFO L158 Benchmark]: TraceAbstraction took 2529.08ms. Allocated memory was 373.3MB in the beginning and 497.0MB in the end (delta: 123.7MB). Free memory was 316.2MB in the beginning and 376.6MB in the end (delta: -60.4MB). Peak memory consumption was 263.6MB. Max. memory is 16.0GB. [2022-01-19 10:24:12,351 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.09ms. Allocated memory is still 373.3MB. Free memory is still 335.3MB. There was no memory consumed. Max. memory is 16.0GB. * CACSL2BoogieTranslator took 434.09ms. Allocated memory is still 373.3MB. Free memory was 317.7MB in the beginning and 335.1MB in the end (delta: -17.4MB). Peak memory consumption was 16.3MB. Max. memory is 16.0GB. * Boogie Procedure Inliner took 30.94ms. Allocated memory is still 373.3MB. Free memory was 335.1MB in the beginning and 333.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * Boogie Preprocessor took 30.22ms. Allocated memory is still 373.3MB. Free memory was 333.0MB in the beginning and 331.9MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * RCFGBuilder took 358.43ms. Allocated memory is still 373.3MB. Free memory was 331.9MB in the beginning and 317.2MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.0GB. * TraceAbstraction took 2529.08ms. Allocated memory was 373.3MB in the beginning and 497.0MB in the end (delta: 123.7MB). Free memory was 316.2MB in the beginning and 376.6MB in the end (delta: -60.4MB). Peak memory consumption was 263.6MB. Max. memory is 16.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 834]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 764]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 176 locations, 6 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 2.4s, OverallIterations: 9, TraceHistogramMax: 1, PathProgramHistogramMax: 4, EmptinessCheckTime: 0.0s, AutomataDifference: 1.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 133 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 133 mSDsluCounter, 204 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 105 mSDsCounter, 27 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 351 IncrementalHoareTripleChecker+Invalid, 378 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 27 mSolverCounterUnsat, 138 mSDtfsCounter, 351 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 40 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=615occurred in iteration=8, InterpolantAutomatonStates: 38, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 434 NumberOfCodeBlocks, 434 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 425 ConstructedInterpolants, 0 QuantifiedInterpolants, 563 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 9 InterpolantComputations, 9 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 2 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-01-19 10:24:12,388 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...