/usr/bin/java -Xmx8000000000 -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-RepeatedSemanticLbeWithDisjunctivePredicates.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread-atomic/szymanski.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.repeated-lipton-8d0d62b [2022-12-06 06:16:05,985 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-06 06:16:05,987 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-06 06:16:06,010 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-06 06:16:06,010 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-06 06:16:06,012 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-06 06:16:06,019 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-06 06:16:06,020 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-06 06:16:06,021 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-06 06:16:06,022 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-06 06:16:06,022 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-06 06:16:06,023 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-06 06:16:06,023 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-06 06:16:06,024 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-06 06:16:06,026 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-06 06:16:06,026 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-06 06:16:06,027 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-06 06:16:06,027 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-06 06:16:06,028 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-06 06:16:06,029 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-06 06:16:06,030 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-06 06:16:06,031 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-06 06:16:06,032 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-06 06:16:06,032 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-06 06:16:06,034 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-06 06:16:06,034 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-06 06:16:06,035 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-06 06:16:06,035 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-06 06:16:06,035 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-06 06:16:06,036 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-06 06:16:06,036 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-06 06:16:06,036 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-06 06:16:06,041 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-06 06:16:06,042 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-06 06:16:06,043 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-06 06:16:06,043 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-06 06:16:06,043 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-06 06:16:06,043 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-06 06:16:06,044 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-06 06:16:06,044 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-06 06:16:06,045 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-06 06:16:06,046 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-RepeatedSemanticLbeWithDisjunctivePredicates.epf [2022-12-06 06:16:06,076 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-06 06:16:06,076 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-06 06:16:06,077 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-06 06:16:06,077 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-06 06:16:06,077 INFO L138 SettingsManager]: * Use SBE=true [2022-12-06 06:16:06,078 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-06 06:16:06,078 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-06 06:16:06,078 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-06 06:16:06,078 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-06 06:16:06,078 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-06 06:16:06,079 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-06 06:16:06,079 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-06 06:16:06,079 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-06 06:16:06,079 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-06 06:16:06,079 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-06 06:16:06,079 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-06 06:16:06,079 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-06 06:16:06,079 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-06 06:16:06,080 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-06 06:16:06,080 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-12-06 06:16:06,080 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-06 06:16:06,080 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-06 06:16:06,080 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-06 06:16:06,080 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-06 06:16:06,080 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-06 06:16:06,080 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-06 06:16:06,080 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-06 06:16:06,080 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=REPEATED_LIPTON_PN [2022-12-06 06:16:06,080 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-12-06 06:16:06,347 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-06 06:16:06,366 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-06 06:16:06,368 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-06 06:16:06,369 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-06 06:16:06,369 INFO L275 PluginConnector]: CDTParser initialized [2022-12-06 06:16:06,371 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-atomic/szymanski.i [2022-12-06 06:16:07,398 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-06 06:16:07,600 INFO L351 CDTParser]: Found 1 translation units. [2022-12-06 06:16:07,600 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-atomic/szymanski.i [2022-12-06 06:16:07,609 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3fe2e2337/c8ad9b05a5a846c6a3214c65e0782000/FLAGb19717e76 [2022-12-06 06:16:07,620 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3fe2e2337/c8ad9b05a5a846c6a3214c65e0782000 [2022-12-06 06:16:07,622 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-06 06:16:07,623 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-12-06 06:16:07,624 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-06 06:16:07,624 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-06 06:16:07,626 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-06 06:16:07,626 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 06:16:07" (1/1) ... [2022-12-06 06:16:07,627 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2c62339a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 06:16:07, skipping insertion in model container [2022-12-06 06:16:07,627 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 06:16:07" (1/1) ... [2022-12-06 06:16:07,631 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-06 06:16:07,670 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-06 06:16:07,845 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-12-06 06:16:07,975 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 06:16:07,976 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 06:16:07,976 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 06:16:07,977 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 06:16:07,977 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 06:16:07,978 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 06:16:07,979 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 06:16:07,979 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 06:16:07,979 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 06:16:07,979 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 06:16:07,980 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 06:16:07,980 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 06:16:07,980 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 06:16:07,980 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 06:16:07,980 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 06:16:07,981 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 06:16:07,981 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 06:16:07,981 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 06:16:07,982 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 06:16:07,982 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 06:16:07,983 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 06:16:07,983 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 06:16:07,984 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-atomic/szymanski.i[31505,31518] [2022-12-06 06:16:07,988 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 06:16:07,988 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 06:16:07,989 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 06:16:07,989 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 06:16:07,990 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 06:16:07,990 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 06:16:07,993 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 06:16:07,993 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 06:16:07,994 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 06:16:07,994 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 06:16:07,994 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 06:16:07,995 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 06:16:07,995 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 06:16:07,996 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 06:16:07,996 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 06:16:07,997 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 06:16:07,997 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 06:16:07,997 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 06:16:07,997 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 06:16:07,998 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 06:16:07,998 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 06:16:07,998 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 06:16:07,998 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 06:16:07,998 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 06:16:07,999 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 06:16:07,999 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 06:16:08,000 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 06:16:08,001 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 06:16:08,001 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-atomic/szymanski.i[32915,32928] [2022-12-06 06:16:08,002 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 06:16:08,002 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 06:16:08,002 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 06:16:08,003 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 06:16:08,003 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 06:16:08,003 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 06:16:08,010 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-06 06:16:08,021 INFO L203 MainTranslator]: Completed pre-run [2022-12-06 06:16:08,042 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-12-06 06:16:08,064 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 06:16:08,064 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 06:16:08,064 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 06:16:08,065 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 06:16:08,065 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 06:16:08,065 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 06:16:08,066 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 06:16:08,066 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 06:16:08,066 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 06:16:08,066 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 06:16:08,067 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 06:16:08,067 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 06:16:08,067 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 06:16:08,067 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 06:16:08,067 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 06:16:08,068 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 06:16:08,069 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 06:16:08,070 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 06:16:08,070 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 06:16:08,071 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 06:16:08,071 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 06:16:08,071 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 06:16:08,072 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-atomic/szymanski.i[31505,31518] [2022-12-06 06:16:08,072 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 06:16:08,073 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 06:16:08,074 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 06:16:08,075 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 06:16:08,075 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 06:16:08,076 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 06:16:08,079 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 06:16:08,080 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 06:16:08,080 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 06:16:08,081 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 06:16:08,081 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 06:16:08,082 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 06:16:08,083 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 06:16:08,083 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 06:16:08,083 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 06:16:08,084 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 06:16:08,085 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 06:16:08,085 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 06:16:08,085 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 06:16:08,085 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 06:16:08,085 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 06:16:08,086 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 06:16:08,086 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 06:16:08,087 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 06:16:08,087 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 06:16:08,088 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 06:16:08,089 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 06:16:08,090 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 06:16:08,090 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-atomic/szymanski.i[32915,32928] [2022-12-06 06:16:08,090 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 06:16:08,091 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 06:16:08,091 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 06:16:08,092 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 06:16:08,092 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 06:16:08,093 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 06:16:08,100 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-06 06:16:08,140 INFO L208 MainTranslator]: Completed translation [2022-12-06 06:16:08,141 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 06:16:08 WrapperNode [2022-12-06 06:16:08,141 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-06 06:16:08,142 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-06 06:16:08,142 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-06 06:16:08,142 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-06 06:16:08,150 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 06:16:08" (1/1) ... [2022-12-06 06:16:08,180 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 06:16:08" (1/1) ... [2022-12-06 06:16:08,194 INFO L138 Inliner]: procedures = 171, calls = 75, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 42 [2022-12-06 06:16:08,195 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-06 06:16:08,196 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-06 06:16:08,196 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-06 06:16:08,196 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-06 06:16:08,203 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 06:16:08" (1/1) ... [2022-12-06 06:16:08,203 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 06:16:08" (1/1) ... [2022-12-06 06:16:08,215 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 06:16:08" (1/1) ... [2022-12-06 06:16:08,215 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 06:16:08" (1/1) ... [2022-12-06 06:16:08,220 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 06:16:08" (1/1) ... [2022-12-06 06:16:08,224 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 06:16:08" (1/1) ... [2022-12-06 06:16:08,225 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 06:16:08" (1/1) ... [2022-12-06 06:16:08,226 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 06:16:08" (1/1) ... [2022-12-06 06:16:08,228 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-06 06:16:08,229 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-06 06:16:08,229 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-06 06:16:08,229 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-06 06:16:08,229 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 06:16:08" (1/1) ... [2022-12-06 06:16:08,234 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-06 06:16:08,242 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-06 06:16:08,273 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) [2022-12-06 06:16:08,294 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 [2022-12-06 06:16:08,314 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-06 06:16:08,314 INFO L130 BoogieDeclarations]: Found specification of procedure thr2 [2022-12-06 06:16:08,314 INFO L138 BoogieDeclarations]: Found implementation of procedure thr2 [2022-12-06 06:16:08,314 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2022-12-06 06:16:08,314 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2022-12-06 06:16:08,314 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-06 06:16:08,314 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-12-06 06:16:08,315 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-06 06:16:08,315 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-06 06:16:08,315 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-06 06:16:08,315 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-06 06:16:08,315 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-12-06 06:16:08,315 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-06 06:16:08,315 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-06 06:16:08,316 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2022-12-06 06:16:08,417 INFO L236 CfgBuilder]: Building ICFG [2022-12-06 06:16:08,419 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-06 06:16:08,604 INFO L277 CfgBuilder]: Performing block encoding [2022-12-06 06:16:08,609 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-06 06:16:08,609 INFO L302 CfgBuilder]: Removed 8 assume(true) statements. [2022-12-06 06:16:08,611 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 06:16:08 BoogieIcfgContainer [2022-12-06 06:16:08,611 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-06 06:16:08,620 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-06 06:16:08,621 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-06 06:16:08,623 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-06 06:16:08,623 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.12 06:16:07" (1/3) ... [2022-12-06 06:16:08,623 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@27ecaaa9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.12 06:16:08, skipping insertion in model container [2022-12-06 06:16:08,624 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 06:16:08" (2/3) ... [2022-12-06 06:16:08,624 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@27ecaaa9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.12 06:16:08, skipping insertion in model container [2022-12-06 06:16:08,624 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 06:16:08" (3/3) ... [2022-12-06 06:16:08,625 INFO L112 eAbstractionObserver]: Analyzing ICFG szymanski.i [2022-12-06 06:16:08,638 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-06 06:16:08,639 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-12-06 06:16:08,639 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-12-06 06:16:08,720 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2022-12-06 06:16:08,752 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 100 places, 113 transitions, 242 flow [2022-12-06 06:16:08,789 INFO L130 PetriNetUnfolder]: 20/111 cut-off events. [2022-12-06 06:16:08,789 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-12-06 06:16:08,795 INFO L83 FinitePrefix]: Finished finitePrefix Result has 120 conditions, 111 events. 20/111 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 148 event pairs, 0 based on Foata normal form. 0/89 useless extension candidates. Maximal degree in co-relation 83. Up to 3 conditions per place. [2022-12-06 06:16:08,795 INFO L82 GeneralOperation]: Start removeDead. Operand has 100 places, 113 transitions, 242 flow [2022-12-06 06:16:08,798 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 89 places, 102 transitions, 213 flow [2022-12-06 06:16:08,799 INFO L195 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-06 06:16:08,810 INFO L167 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 89 places, 102 transitions, 213 flow [2022-12-06 06:16:08,813 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 89 places, 102 transitions, 213 flow [2022-12-06 06:16:08,835 INFO L130 PetriNetUnfolder]: 20/102 cut-off events. [2022-12-06 06:16:08,835 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-12-06 06:16:08,836 INFO L83 FinitePrefix]: Finished finitePrefix Result has 110 conditions, 102 events. 20/102 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 148 event pairs, 0 based on Foata normal form. 0/80 useless extension candidates. Maximal degree in co-relation 83. Up to 3 conditions per place. [2022-12-06 06:16:08,839 INFO L184 LiptonReduction]: Starting Lipton reduction on Petri net that has 89 places, 102 transitions, 213 flow [2022-12-06 06:16:08,839 INFO L188 LiptonReduction]: Number of co-enabled transitions 3672 [2022-12-06 06:16:10,669 INFO L203 LiptonReduction]: Total number of compositions: 63 [2022-12-06 06:16:10,679 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-06 06:16:10,683 INFO L357 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=REPEATED_LIPTON_PN, 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, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@716fbf73, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, Conditionality=CONDITIONAL_DISJUNCTIVE, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-06 06:16:10,684 INFO L358 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2022-12-06 06:16:10,688 INFO L130 PetriNetUnfolder]: 13/38 cut-off events. [2022-12-06 06:16:10,688 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-06 06:16:10,688 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 06:16:10,689 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 06:16:10,689 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2022-12-06 06:16:10,692 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 06:16:10,692 INFO L85 PathProgramCache]: Analyzing trace with hash -1328925776, now seen corresponding path program 1 times [2022-12-06 06:16:10,702 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 06:16:10,702 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [195493338] [2022-12-06 06:16:10,702 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 06:16:10,702 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 06:16:10,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 06:16:10,845 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 06:16:10,846 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 06:16:10,846 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [195493338] [2022-12-06 06:16:10,846 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [195493338] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 06:16:10,847 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 06:16:10,847 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-06 06:16:10,848 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [967188052] [2022-12-06 06:16:10,849 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 06:16:10,854 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-06 06:16:10,854 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 06:16:10,873 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-06 06:16:10,874 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-06 06:16:10,875 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 49 [2022-12-06 06:16:10,877 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 41 places, 49 transitions, 107 flow. Second operand has 3 states, 3 states have (on average 13.333333333333334) internal successors, (40), 3 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 06:16:10,877 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 06:16:10,877 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 49 [2022-12-06 06:16:10,878 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 06:16:11,034 INFO L130 PetriNetUnfolder]: 870/1314 cut-off events. [2022-12-06 06:16:11,035 INFO L131 PetriNetUnfolder]: For 40/40 co-relation queries the response was YES. [2022-12-06 06:16:11,039 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2579 conditions, 1314 events. 870/1314 cut-off events. For 40/40 co-relation queries the response was YES. Maximal size of possible extension queue 68. Compared 5586 event pairs, 236 based on Foata normal form. 25/805 useless extension candidates. Maximal degree in co-relation 2382. Up to 838 conditions per place. [2022-12-06 06:16:11,044 INFO L137 encePairwiseOnDemand]: 38/49 looper letters, 44 selfloop transitions, 5 changer transitions 2/62 dead transitions. [2022-12-06 06:16:11,045 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 43 places, 62 transitions, 238 flow [2022-12-06 06:16:11,046 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-06 06:16:11,047 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-06 06:16:11,051 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 92 transitions. [2022-12-06 06:16:11,053 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.6258503401360545 [2022-12-06 06:16:11,054 INFO L175 Difference]: Start difference. First operand has 41 places, 49 transitions, 107 flow. Second operand 3 states and 92 transitions. [2022-12-06 06:16:11,054 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 43 places, 62 transitions, 238 flow [2022-12-06 06:16:11,056 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 40 places, 62 transitions, 231 flow, removed 0 selfloop flow, removed 3 redundant places. [2022-12-06 06:16:11,058 INFO L231 Difference]: Finished difference. Result has 42 places, 46 transitions, 122 flow [2022-12-06 06:16:11,059 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=49, PETRI_DIFFERENCE_MINUEND_FLOW=92, PETRI_DIFFERENCE_MINUEND_PLACES=38, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=44, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=39, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=122, PETRI_PLACES=42, PETRI_TRANSITIONS=46} [2022-12-06 06:16:11,061 INFO L294 CegarLoopForPetriNet]: 41 programPoint places, 1 predicate places. [2022-12-06 06:16:11,061 WARN L163 eatedLiptonReduction]: Counterexample is not a run of mAbstraction. Replaying acceptance of the word... [2022-12-06 06:16:11,062 INFO L89 Accepts]: Start accepts. Operand has 42 places, 46 transitions, 122 flow [2022-12-06 06:16:11,064 INFO L95 Accepts]: Finished accepts. [2022-12-06 06:16:11,064 INFO L195 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-06 06:16:11,064 INFO L167 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 42 places, 46 transitions, 122 flow [2022-12-06 06:16:11,065 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 42 places, 46 transitions, 122 flow [2022-12-06 06:16:11,069 INFO L130 PetriNetUnfolder]: 14/71 cut-off events. [2022-12-06 06:16:11,069 INFO L131 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2022-12-06 06:16:11,070 INFO L83 FinitePrefix]: Finished finitePrefix Result has 103 conditions, 71 events. 14/71 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 205 event pairs, 0 based on Foata normal form. 0/51 useless extension candidates. Maximal degree in co-relation 91. Up to 9 conditions per place. [2022-12-06 06:16:11,070 INFO L184 LiptonReduction]: Starting Lipton reduction on Petri net that has 42 places, 46 transitions, 122 flow [2022-12-06 06:16:11,070 INFO L188 LiptonReduction]: Number of co-enabled transitions 870 [2022-12-06 06:16:11,093 INFO L203 LiptonReduction]: Total number of compositions: 1 [2022-12-06 06:16:11,094 INFO L143 eatedLiptonReduction]: Time needed for LBE in milliseconds: 33 [2022-12-06 06:16:11,094 INFO L495 AbstractCegarLoop]: Abstraction has has 43 places, 46 transitions, 122 flow [2022-12-06 06:16:11,095 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.333333333333334) internal successors, (40), 3 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 06:16:11,095 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 06:16:11,095 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 06:16:11,095 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-06 06:16:11,095 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting thr2Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2022-12-06 06:16:11,095 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 06:16:11,095 INFO L85 PathProgramCache]: Analyzing trace with hash 284079718, now seen corresponding path program 1 times [2022-12-06 06:16:11,096 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 06:16:11,096 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1349829613] [2022-12-06 06:16:11,096 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 06:16:11,096 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 06:16:11,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 06:16:11,141 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 06:16:11,141 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 06:16:11,141 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1349829613] [2022-12-06 06:16:11,141 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1349829613] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 06:16:11,142 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 06:16:11,142 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-06 06:16:11,142 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [459922407] [2022-12-06 06:16:11,142 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 06:16:11,143 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-06 06:16:11,143 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 06:16:11,143 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-06 06:16:11,143 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-06 06:16:11,143 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 44 [2022-12-06 06:16:11,144 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 43 places, 46 transitions, 122 flow. Second operand has 3 states, 3 states have (on average 14.0) internal successors, (42), 3 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 06:16:11,144 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 06:16:11,144 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 44 [2022-12-06 06:16:11,144 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 06:16:11,263 INFO L130 PetriNetUnfolder]: 813/1229 cut-off events. [2022-12-06 06:16:11,265 INFO L131 PetriNetUnfolder]: For 143/143 co-relation queries the response was YES. [2022-12-06 06:16:11,271 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2682 conditions, 1229 events. 813/1229 cut-off events. For 143/143 co-relation queries the response was YES. Maximal size of possible extension queue 58. Compared 5163 event pairs, 238 based on Foata normal form. 28/820 useless extension candidates. Maximal degree in co-relation 1539. Up to 834 conditions per place. [2022-12-06 06:16:11,273 INFO L137 encePairwiseOnDemand]: 39/44 looper letters, 39 selfloop transitions, 4 changer transitions 7/61 dead transitions. [2022-12-06 06:16:11,274 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 45 places, 61 transitions, 253 flow [2022-12-06 06:16:11,274 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-06 06:16:11,274 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-06 06:16:11,275 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 84 transitions. [2022-12-06 06:16:11,276 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.6363636363636364 [2022-12-06 06:16:11,276 INFO L175 Difference]: Start difference. First operand has 43 places, 46 transitions, 122 flow. Second operand 3 states and 84 transitions. [2022-12-06 06:16:11,276 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 45 places, 61 transitions, 253 flow [2022-12-06 06:16:11,278 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 43 places, 61 transitions, 243 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-12-06 06:16:11,279 INFO L231 Difference]: Finished difference. Result has 44 places, 45 transitions, 122 flow [2022-12-06 06:16:11,280 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=44, PETRI_DIFFERENCE_MINUEND_FLOW=112, PETRI_DIFFERENCE_MINUEND_PLACES=41, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=46, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=42, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=122, PETRI_PLACES=44, PETRI_TRANSITIONS=45} [2022-12-06 06:16:11,280 INFO L294 CegarLoopForPetriNet]: 41 programPoint places, 3 predicate places. [2022-12-06 06:16:11,280 WARN L163 eatedLiptonReduction]: Counterexample is not a run of mAbstraction. Replaying acceptance of the word... [2022-12-06 06:16:11,280 INFO L89 Accepts]: Start accepts. Operand has 44 places, 45 transitions, 122 flow [2022-12-06 06:16:11,282 INFO L95 Accepts]: Finished accepts. [2022-12-06 06:16:11,282 INFO L195 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-06 06:16:11,282 INFO L167 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 44 places, 45 transitions, 122 flow [2022-12-06 06:16:11,283 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 44 places, 45 transitions, 122 flow [2022-12-06 06:16:11,289 INFO L130 PetriNetUnfolder]: 12/59 cut-off events. [2022-12-06 06:16:11,289 INFO L131 PetriNetUnfolder]: For 6/6 co-relation queries the response was YES. [2022-12-06 06:16:11,289 INFO L83 FinitePrefix]: Finished finitePrefix Result has 92 conditions, 59 events. 12/59 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 134 event pairs, 0 based on Foata normal form. 0/44 useless extension candidates. Maximal degree in co-relation 80. Up to 7 conditions per place. [2022-12-06 06:16:11,290 INFO L184 LiptonReduction]: Starting Lipton reduction on Petri net that has 44 places, 45 transitions, 122 flow [2022-12-06 06:16:11,290 INFO L188 LiptonReduction]: Number of co-enabled transitions 656 [2022-12-06 06:16:11,301 INFO L203 LiptonReduction]: Total number of compositions: 0 [2022-12-06 06:16:11,302 INFO L143 eatedLiptonReduction]: Time needed for LBE in milliseconds: 22 [2022-12-06 06:16:11,303 INFO L495 AbstractCegarLoop]: Abstraction has has 44 places, 45 transitions, 122 flow [2022-12-06 06:16:11,303 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.0) internal successors, (42), 3 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 06:16:11,303 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 06:16:11,303 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 06:16:11,303 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-06 06:16:11,304 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2022-12-06 06:16:11,304 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 06:16:11,304 INFO L85 PathProgramCache]: Analyzing trace with hash -669221234, now seen corresponding path program 1 times [2022-12-06 06:16:11,305 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 06:16:11,305 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [497411506] [2022-12-06 06:16:11,306 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 06:16:11,306 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 06:16:11,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 06:16:11,406 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 06:16:11,406 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 06:16:11,407 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [497411506] [2022-12-06 06:16:11,409 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [497411506] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 06:16:11,409 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 06:16:11,409 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-06 06:16:11,409 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1189400461] [2022-12-06 06:16:11,409 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 06:16:11,410 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-06 06:16:11,410 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 06:16:11,410 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-06 06:16:11,410 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-06 06:16:11,410 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 5 out of 44 [2022-12-06 06:16:11,410 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 44 places, 45 transitions, 122 flow. Second operand has 4 states, 4 states have (on average 9.0) internal successors, (36), 4 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 06:16:11,410 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 06:16:11,411 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 5 of 44 [2022-12-06 06:16:11,411 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 06:16:11,583 INFO L130 PetriNetUnfolder]: 734/1147 cut-off events. [2022-12-06 06:16:11,583 INFO L131 PetriNetUnfolder]: For 170/170 co-relation queries the response was YES. [2022-12-06 06:16:11,585 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2489 conditions, 1147 events. 734/1147 cut-off events. For 170/170 co-relation queries the response was YES. Maximal size of possible extension queue 50. Compared 4594 event pairs, 249 based on Foata normal form. 6/911 useless extension candidates. Maximal degree in co-relation 1783. Up to 609 conditions per place. [2022-12-06 06:16:11,587 INFO L137 encePairwiseOnDemand]: 27/44 looper letters, 46 selfloop transitions, 6 changer transitions 36/93 dead transitions. [2022-12-06 06:16:11,587 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 48 places, 93 transitions, 423 flow [2022-12-06 06:16:11,589 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-06 06:16:11,589 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-12-06 06:16:11,592 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 118 transitions. [2022-12-06 06:16:11,592 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.5363636363636364 [2022-12-06 06:16:11,592 INFO L175 Difference]: Start difference. First operand has 44 places, 45 transitions, 122 flow. Second operand 5 states and 118 transitions. [2022-12-06 06:16:11,592 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 48 places, 93 transitions, 423 flow [2022-12-06 06:16:11,596 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 47 places, 93 transitions, 415 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-12-06 06:16:11,598 INFO L231 Difference]: Finished difference. Result has 50 places, 45 transitions, 163 flow [2022-12-06 06:16:11,598 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=44, PETRI_DIFFERENCE_MINUEND_FLOW=118, PETRI_DIFFERENCE_MINUEND_PLACES=43, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=45, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=39, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=163, PETRI_PLACES=50, PETRI_TRANSITIONS=45} [2022-12-06 06:16:11,599 INFO L294 CegarLoopForPetriNet]: 41 programPoint places, 9 predicate places. [2022-12-06 06:16:11,599 WARN L163 eatedLiptonReduction]: Counterexample is not a run of mAbstraction. Replaying acceptance of the word... [2022-12-06 06:16:11,599 INFO L89 Accepts]: Start accepts. Operand has 50 places, 45 transitions, 163 flow [2022-12-06 06:16:11,601 INFO L95 Accepts]: Finished accepts. [2022-12-06 06:16:11,601 INFO L195 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-06 06:16:11,601 INFO L167 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 50 places, 45 transitions, 163 flow [2022-12-06 06:16:11,602 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 50 places, 45 transitions, 163 flow [2022-12-06 06:16:11,607 INFO L130 PetriNetUnfolder]: 18/78 cut-off events. [2022-12-06 06:16:11,608 INFO L131 PetriNetUnfolder]: For 21/25 co-relation queries the response was YES. [2022-12-06 06:16:11,608 INFO L83 FinitePrefix]: Finished finitePrefix Result has 150 conditions, 78 events. 18/78 cut-off events. For 21/25 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 205 event pairs, 0 based on Foata normal form. 0/68 useless extension candidates. Maximal degree in co-relation 135. Up to 12 conditions per place. [2022-12-06 06:16:11,608 INFO L184 LiptonReduction]: Starting Lipton reduction on Petri net that has 50 places, 45 transitions, 163 flow [2022-12-06 06:16:11,608 INFO L188 LiptonReduction]: Number of co-enabled transitions 496 [2022-12-06 06:16:11,668 INFO L203 LiptonReduction]: Total number of compositions: 1 [2022-12-06 06:16:11,670 INFO L143 eatedLiptonReduction]: Time needed for LBE in milliseconds: 71 [2022-12-06 06:16:11,670 INFO L495 AbstractCegarLoop]: Abstraction has has 50 places, 45 transitions, 167 flow [2022-12-06 06:16:11,670 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.0) internal successors, (36), 4 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 06:16:11,670 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 06:16:11,670 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 06:16:11,670 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-06 06:16:11,670 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2022-12-06 06:16:11,671 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 06:16:11,671 INFO L85 PathProgramCache]: Analyzing trace with hash -1689507818, now seen corresponding path program 2 times [2022-12-06 06:16:11,671 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 06:16:11,671 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [974025353] [2022-12-06 06:16:11,671 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 06:16:11,671 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 06:16:11,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 06:16:11,726 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 06:16:11,727 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 06:16:11,727 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [974025353] [2022-12-06 06:16:11,727 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [974025353] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 06:16:11,727 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 06:16:11,727 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-06 06:16:11,727 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1814658125] [2022-12-06 06:16:11,727 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 06:16:11,727 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-06 06:16:11,727 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 06:16:11,728 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-06 06:16:11,728 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-06 06:16:11,728 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 5 out of 43 [2022-12-06 06:16:11,728 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 50 places, 45 transitions, 167 flow. Second operand has 4 states, 4 states have (on average 9.0) internal successors, (36), 4 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 06:16:11,728 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 06:16:11,728 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 5 of 43 [2022-12-06 06:16:11,728 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 06:16:11,852 INFO L130 PetriNetUnfolder]: 625/1036 cut-off events. [2022-12-06 06:16:11,852 INFO L131 PetriNetUnfolder]: For 563/567 co-relation queries the response was YES. [2022-12-06 06:16:11,853 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2618 conditions, 1036 events. 625/1036 cut-off events. For 563/567 co-relation queries the response was YES. Maximal size of possible extension queue 54. Compared 4476 event pairs, 145 based on Foata normal form. 32/973 useless extension candidates. Maximal degree in co-relation 1898. Up to 373 conditions per place. [2022-12-06 06:16:11,856 INFO L137 encePairwiseOnDemand]: 25/43 looper letters, 57 selfloop transitions, 22 changer transitions 8/92 dead transitions. [2022-12-06 06:16:11,856 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 54 places, 92 transitions, 527 flow [2022-12-06 06:16:11,856 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-06 06:16:11,856 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-12-06 06:16:11,857 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 116 transitions. [2022-12-06 06:16:11,857 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.5395348837209303 [2022-12-06 06:16:11,857 INFO L175 Difference]: Start difference. First operand has 50 places, 45 transitions, 167 flow. Second operand 5 states and 116 transitions. [2022-12-06 06:16:11,857 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 54 places, 92 transitions, 527 flow [2022-12-06 06:16:11,862 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 53 places, 92 transitions, 501 flow, removed 12 selfloop flow, removed 1 redundant places. [2022-12-06 06:16:11,865 INFO L231 Difference]: Finished difference. Result has 57 places, 61 transitions, 354 flow [2022-12-06 06:16:11,866 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=155, PETRI_DIFFERENCE_MINUEND_PLACES=49, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=45, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=30, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=354, PETRI_PLACES=57, PETRI_TRANSITIONS=61} [2022-12-06 06:16:11,867 INFO L294 CegarLoopForPetriNet]: 41 programPoint places, 16 predicate places. [2022-12-06 06:16:11,867 WARN L163 eatedLiptonReduction]: Counterexample is not a run of mAbstraction. Replaying acceptance of the word... [2022-12-06 06:16:11,867 INFO L89 Accepts]: Start accepts. Operand has 57 places, 61 transitions, 354 flow [2022-12-06 06:16:11,868 INFO L95 Accepts]: Finished accepts. [2022-12-06 06:16:11,868 INFO L195 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-06 06:16:11,868 INFO L167 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 57 places, 61 transitions, 354 flow [2022-12-06 06:16:11,869 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 57 places, 61 transitions, 354 flow [2022-12-06 06:16:11,877 INFO L130 PetriNetUnfolder]: 52/160 cut-off events. [2022-12-06 06:16:11,878 INFO L131 PetriNetUnfolder]: For 179/194 co-relation queries the response was YES. [2022-12-06 06:16:11,878 INFO L83 FinitePrefix]: Finished finitePrefix Result has 414 conditions, 160 events. 52/160 cut-off events. For 179/194 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 601 event pairs, 3 based on Foata normal form. 1/148 useless extension candidates. Maximal degree in co-relation 396. Up to 39 conditions per place. [2022-12-06 06:16:11,879 INFO L184 LiptonReduction]: Starting Lipton reduction on Petri net that has 57 places, 61 transitions, 354 flow [2022-12-06 06:16:11,879 INFO L188 LiptonReduction]: Number of co-enabled transitions 536 [2022-12-06 06:16:11,887 ERROR L112 fgCompositionFactory]: Composing non-subsequent actions: [460] L712-->L716: Formula: (and (not (<= 3 v_thr1Thread1of1ForFork0_~f21~0_In_4)) (= v_~flag1~0_Out_16 3)) InVars {thr1Thread1of1ForFork0_~f21~0=v_thr1Thread1of1ForFork0_~f21~0_In_4} OutVars{thr1Thread1of1ForFork0_~f21~0=v_thr1Thread1of1ForFork0_~f21~0_In_4, ~flag1~0=v_~flag1~0_Out_16} AuxVars[] AssignedVars[~flag1~0] and [361] L721-->L723: Formula: (= 2 v_~flag1~0_13) InVars {} OutVars{~flag1~0=v_~flag1~0_13} AuxVars[] AssignedVars[~flag1~0] [2022-12-06 06:16:11,912 INFO L203 LiptonReduction]: Total number of compositions: 1 [2022-12-06 06:16:11,919 INFO L143 eatedLiptonReduction]: Time needed for LBE in milliseconds: 52 [2022-12-06 06:16:11,919 INFO L495 AbstractCegarLoop]: Abstraction has has 57 places, 61 transitions, 356 flow [2022-12-06 06:16:11,919 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.0) internal successors, (36), 4 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 06:16:11,919 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 06:16:11,919 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 06:16:11,919 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-12-06 06:16:11,920 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2022-12-06 06:16:11,920 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 06:16:11,920 INFO L85 PathProgramCache]: Analyzing trace with hash 1053435646, now seen corresponding path program 3 times [2022-12-06 06:16:11,920 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 06:16:11,920 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [891275372] [2022-12-06 06:16:11,921 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 06:16:11,921 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 06:16:11,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 06:16:11,956 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 06:16:11,956 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 06:16:11,956 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [891275372] [2022-12-06 06:16:11,956 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [891275372] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 06:16:11,956 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 06:16:11,956 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-06 06:16:11,957 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [36133178] [2022-12-06 06:16:11,957 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 06:16:11,957 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-06 06:16:11,957 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 06:16:11,957 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-06 06:16:11,958 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-06 06:16:11,958 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 5 out of 44 [2022-12-06 06:16:11,958 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 57 places, 61 transitions, 356 flow. Second operand has 4 states, 4 states have (on average 9.0) internal successors, (36), 4 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 06:16:11,958 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 06:16:11,958 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 5 of 44 [2022-12-06 06:16:11,958 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 06:16:12,170 INFO L130 PetriNetUnfolder]: 794/1365 cut-off events. [2022-12-06 06:16:12,171 INFO L131 PetriNetUnfolder]: For 2105/2117 co-relation queries the response was YES. [2022-12-06 06:16:12,172 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4293 conditions, 1365 events. 794/1365 cut-off events. For 2105/2117 co-relation queries the response was YES. Maximal size of possible extension queue 76. Compared 6696 event pairs, 262 based on Foata normal form. 44/1322 useless extension candidates. Maximal degree in co-relation 3360. Up to 782 conditions per place. [2022-12-06 06:16:12,176 INFO L137 encePairwiseOnDemand]: 30/44 looper letters, 86 selfloop transitions, 21 changer transitions 2/114 dead transitions. [2022-12-06 06:16:12,176 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 61 places, 114 transitions, 886 flow [2022-12-06 06:16:12,176 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-06 06:16:12,176 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-12-06 06:16:12,177 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 121 transitions. [2022-12-06 06:16:12,177 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.55 [2022-12-06 06:16:12,177 INFO L175 Difference]: Start difference. First operand has 57 places, 61 transitions, 356 flow. Second operand 5 states and 121 transitions. [2022-12-06 06:16:12,177 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 61 places, 114 transitions, 886 flow [2022-12-06 06:16:12,182 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 61 places, 114 transitions, 876 flow, removed 5 selfloop flow, removed 0 redundant places. [2022-12-06 06:16:12,184 INFO L231 Difference]: Finished difference. Result has 65 places, 78 transitions, 605 flow [2022-12-06 06:16:12,185 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=44, PETRI_DIFFERENCE_MINUEND_FLOW=338, PETRI_DIFFERENCE_MINUEND_PLACES=57, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=60, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=44, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=605, PETRI_PLACES=65, PETRI_TRANSITIONS=78} [2022-12-06 06:16:12,186 INFO L294 CegarLoopForPetriNet]: 41 programPoint places, 24 predicate places. [2022-12-06 06:16:12,186 WARN L163 eatedLiptonReduction]: Counterexample is not a run of mAbstraction. Replaying acceptance of the word... [2022-12-06 06:16:12,187 INFO L89 Accepts]: Start accepts. Operand has 65 places, 78 transitions, 605 flow [2022-12-06 06:16:12,187 INFO L95 Accepts]: Finished accepts. [2022-12-06 06:16:12,187 INFO L195 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-06 06:16:12,188 INFO L167 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 65 places, 78 transitions, 605 flow [2022-12-06 06:16:12,189 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 65 places, 78 transitions, 605 flow [2022-12-06 06:16:12,201 INFO L130 PetriNetUnfolder]: 89/271 cut-off events. [2022-12-06 06:16:12,201 INFO L131 PetriNetUnfolder]: For 492/510 co-relation queries the response was YES. [2022-12-06 06:16:12,202 INFO L83 FinitePrefix]: Finished finitePrefix Result has 806 conditions, 271 events. 89/271 cut-off events. For 492/510 co-relation queries the response was YES. Maximal size of possible extension queue 25. Compared 1259 event pairs, 1 based on Foata normal form. 1/247 useless extension candidates. Maximal degree in co-relation 784. Up to 63 conditions per place. [2022-12-06 06:16:12,203 INFO L184 LiptonReduction]: Starting Lipton reduction on Petri net that has 65 places, 78 transitions, 605 flow [2022-12-06 06:16:12,203 INFO L188 LiptonReduction]: Number of co-enabled transitions 634 [2022-12-06 06:16:12,209 INFO L203 LiptonReduction]: Total number of compositions: 0 [2022-12-06 06:16:12,211 INFO L143 eatedLiptonReduction]: Time needed for LBE in milliseconds: 25 [2022-12-06 06:16:12,211 INFO L495 AbstractCegarLoop]: Abstraction has has 65 places, 78 transitions, 605 flow [2022-12-06 06:16:12,211 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.0) internal successors, (36), 4 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 06:16:12,212 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 06:16:12,212 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 06:16:12,212 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-12-06 06:16:12,212 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2022-12-06 06:16:12,212 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 06:16:12,212 INFO L85 PathProgramCache]: Analyzing trace with hash 1726620000, now seen corresponding path program 4 times [2022-12-06 06:16:12,212 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 06:16:12,212 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [605145379] [2022-12-06 06:16:12,212 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 06:16:12,213 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 06:16:12,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 06:16:12,254 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 06:16:12,254 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 06:16:12,254 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [605145379] [2022-12-06 06:16:12,254 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [605145379] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 06:16:12,254 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 06:16:12,254 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-06 06:16:12,255 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [294480162] [2022-12-06 06:16:12,255 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 06:16:12,255 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-06 06:16:12,255 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 06:16:12,256 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-06 06:16:12,256 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-06 06:16:12,256 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 6 out of 43 [2022-12-06 06:16:12,257 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 65 places, 78 transitions, 605 flow. Second operand has 4 states, 4 states have (on average 10.0) internal successors, (40), 4 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 06:16:12,257 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 06:16:12,257 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 6 of 43 [2022-12-06 06:16:12,257 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 06:16:12,393 INFO L130 PetriNetUnfolder]: 752/1276 cut-off events. [2022-12-06 06:16:12,393 INFO L131 PetriNetUnfolder]: For 3338/3383 co-relation queries the response was YES. [2022-12-06 06:16:12,395 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4615 conditions, 1276 events. 752/1276 cut-off events. For 3338/3383 co-relation queries the response was YES. Maximal size of possible extension queue 83. Compared 6092 event pairs, 216 based on Foata normal form. 44/1231 useless extension candidates. Maximal degree in co-relation 3802. Up to 664 conditions per place. [2022-12-06 06:16:12,397 INFO L137 encePairwiseOnDemand]: 28/43 looper letters, 0 selfloop transitions, 0 changer transitions 108/108 dead transitions. [2022-12-06 06:16:12,397 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 64 places, 108 transitions, 927 flow [2022-12-06 06:16:12,397 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-06 06:16:12,397 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-12-06 06:16:12,397 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 100 transitions. [2022-12-06 06:16:12,398 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.46511627906976744 [2022-12-06 06:16:12,398 INFO L175 Difference]: Start difference. First operand has 65 places, 78 transitions, 605 flow. Second operand 5 states and 100 transitions. [2022-12-06 06:16:12,398 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 64 places, 108 transitions, 927 flow [2022-12-06 06:16:12,407 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 62 places, 108 transitions, 886 flow, removed 14 selfloop flow, removed 2 redundant places. [2022-12-06 06:16:12,408 INFO L231 Difference]: Finished difference. Result has 62 places, 0 transitions, 0 flow [2022-12-06 06:16:12,408 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=540, PETRI_DIFFERENCE_MINUEND_PLACES=58, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=72, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=72, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=0, PETRI_PLACES=62, PETRI_TRANSITIONS=0} [2022-12-06 06:16:12,410 INFO L294 CegarLoopForPetriNet]: 41 programPoint places, 21 predicate places. [2022-12-06 06:16:12,410 INFO L195 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-06 06:16:12,410 INFO L167 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 62 places, 0 transitions, 0 flow [2022-12-06 06:16:12,410 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 0 places, 0 transitions, 0 flow [2022-12-06 06:16:12,410 INFO L130 PetriNetUnfolder]: 0/0 cut-off events. [2022-12-06 06:16:12,410 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-06 06:16:12,411 INFO L83 FinitePrefix]: Finished finitePrefix Result has 0 conditions, 0 events. 0/0 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 0. Compared 0 event pairs, 0 based on Foata normal form. 0/0 useless extension candidates. Maximal degree in co-relation 0. Up to 0 conditions per place. [2022-12-06 06:16:12,411 INFO L184 LiptonReduction]: Starting Lipton reduction on Petri net that has 0 places, 0 transitions, 0 flow [2022-12-06 06:16:12,411 INFO L188 LiptonReduction]: Number of co-enabled transitions 0 [2022-12-06 06:16:12,411 INFO L203 LiptonReduction]: Total number of compositions: 0 [2022-12-06 06:16:12,411 INFO L143 eatedLiptonReduction]: Time needed for LBE in milliseconds: 1 [2022-12-06 06:16:12,411 INFO L495 AbstractCegarLoop]: Abstraction has has 0 places, 0 transitions, 0 flow [2022-12-06 06:16:12,412 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.0) internal successors, (40), 4 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 06:16:12,416 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr2Err0ASSERT_VIOLATIONERROR_FUNCTION (5 of 6 remaining) [2022-12-06 06:16:12,417 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr1Err0ASSERT_VIOLATIONERROR_FUNCTION (4 of 6 remaining) [2022-12-06 06:16:12,417 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (3 of 6 remaining) [2022-12-06 06:16:12,417 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 6 remaining) [2022-12-06 06:16:12,417 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr2Err0ASSERT_VIOLATIONERROR_FUNCTION (1 of 6 remaining) [2022-12-06 06:16:12,417 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr1Err0ASSERT_VIOLATIONERROR_FUNCTION (0 of 6 remaining) [2022-12-06 06:16:12,417 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-12-06 06:16:12,418 INFO L458 BasicCegarLoop]: Path program histogram: [4, 1, 1] [2022-12-06 06:16:12,421 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-12-06 06:16:12,422 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-06 06:16:12,424 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.12 06:16:12 BasicIcfg [2022-12-06 06:16:12,424 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-06 06:16:12,425 INFO L158 Benchmark]: Toolchain (without parser) took 4801.54ms. Allocated memory was 197.1MB in the beginning and 260.0MB in the end (delta: 62.9MB). Free memory was 170.7MB in the beginning and 132.3MB in the end (delta: 38.5MB). Peak memory consumption was 103.0MB. Max. memory is 8.0GB. [2022-12-06 06:16:12,425 INFO L158 Benchmark]: CDTParser took 0.16ms. Allocated memory is still 197.1MB. Free memory is still 173.7MB. There was no memory consumed. Max. memory is 8.0GB. [2022-12-06 06:16:12,425 INFO L158 Benchmark]: CACSL2BoogieTranslator took 517.41ms. Allocated memory is still 197.1MB. Free memory was 170.7MB in the beginning and 144.0MB in the end (delta: 26.7MB). Peak memory consumption was 27.3MB. Max. memory is 8.0GB. [2022-12-06 06:16:12,425 INFO L158 Benchmark]: Boogie Procedure Inliner took 52.51ms. Allocated memory is still 197.1MB. Free memory was 144.0MB in the beginning and 141.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-12-06 06:16:12,425 INFO L158 Benchmark]: Boogie Preprocessor took 32.28ms. Allocated memory is still 197.1MB. Free memory was 141.9MB in the beginning and 140.3MB in the end (delta: 1.6MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-12-06 06:16:12,425 INFO L158 Benchmark]: RCFGBuilder took 382.57ms. Allocated memory is still 197.1MB. Free memory was 140.3MB in the beginning and 125.6MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 8.0GB. [2022-12-06 06:16:12,426 INFO L158 Benchmark]: TraceAbstraction took 3803.83ms. Allocated memory was 197.1MB in the beginning and 260.0MB in the end (delta: 62.9MB). Free memory was 124.6MB in the beginning and 132.3MB in the end (delta: -7.7MB). Peak memory consumption was 56.8MB. Max. memory is 8.0GB. [2022-12-06 06:16:12,427 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16ms. Allocated memory is still 197.1MB. Free memory is still 173.7MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 517.41ms. Allocated memory is still 197.1MB. Free memory was 170.7MB in the beginning and 144.0MB in the end (delta: 26.7MB). Peak memory consumption was 27.3MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 52.51ms. Allocated memory is still 197.1MB. Free memory was 144.0MB in the beginning and 141.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 32.28ms. Allocated memory is still 197.1MB. Free memory was 141.9MB in the beginning and 140.3MB in the end (delta: 1.6MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 382.57ms. Allocated memory is still 197.1MB. Free memory was 140.3MB in the beginning and 125.6MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 8.0GB. * TraceAbstraction took 3803.83ms. Allocated memory was 197.1MB in the beginning and 260.0MB in the end (delta: 62.9MB). Free memory was 124.6MB in the beginning and 132.3MB in the end (delta: -7.7MB). Peak memory consumption was 56.8MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 1.8s, 89 PlacesBefore, 41 PlacesAfterwards, 102 TransitionsBefore, 49 TransitionsAfterwards, 3672 CoEnabledTransitionPairs, 3 FixpointIterations, 0 TrivialSequentialCompositions, 8 ConcurrentSequentialCompositions, 16 TrivialYvCompositions, 34 ConcurrentYvCompositions, 5 ChoiceCompositions, 63 TotalNumberOfCompositions, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 2467, independent: 2358, independent conditional: 2358, independent unconditional: 0, dependent: 109, dependent conditional: 109, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 2467, independent: 2358, independent conditional: 0, independent unconditional: 2358, dependent: 109, dependent conditional: 0, dependent unconditional: 109, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 2467, independent: 2358, independent conditional: 0, independent unconditional: 2358, dependent: 109, dependent conditional: 0, dependent unconditional: 109, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 2467, independent: 2358, independent conditional: 0, independent unconditional: 2358, dependent: 109, dependent conditional: 0, dependent unconditional: 109, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 2043, independent: 2003, independent conditional: 0, independent unconditional: 2003, dependent: 40, dependent conditional: 0, dependent unconditional: 40, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 2043, independent: 1948, independent conditional: 0, independent unconditional: 1948, dependent: 95, dependent conditional: 0, dependent unconditional: 95, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 95, independent: 55, independent conditional: 0, independent unconditional: 55, dependent: 40, dependent conditional: 0, dependent unconditional: 40, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 89, independent: 34, independent conditional: 0, independent unconditional: 34, dependent: 55, dependent conditional: 0, dependent unconditional: 55, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 2467, independent: 355, independent conditional: 0, independent unconditional: 355, dependent: 69, dependent conditional: 0, dependent unconditional: 69, unknown: 2043, unknown conditional: 0, unknown unconditional: 2043] , Statistics on independence cache: Total cache size (in pairs): 3047, Positive cache size: 3007, Positive conditional cache size: 0, Positive unconditional cache size: 3007, Negative cache size: 40, Negative conditional cache size: 0, Negative unconditional cache size: 40, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 0, Maximal queried relation: -1 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 0.0s, 42 PlacesBefore, 43 PlacesAfterwards, 46 TransitionsBefore, 46 TransitionsAfterwards, 870 CoEnabledTransitionPairs, 2 FixpointIterations, 1 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 1 TotalNumberOfCompositions, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 199, independent: 130, independent conditional: 130, independent unconditional: 0, dependent: 69, dependent conditional: 69, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 199, independent: 130, independent conditional: 40, independent unconditional: 90, dependent: 69, dependent conditional: 0, dependent unconditional: 69, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 199, independent: 130, independent conditional: 0, independent unconditional: 130, dependent: 69, dependent conditional: 0, dependent unconditional: 69, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 199, independent: 130, independent conditional: 0, independent unconditional: 130, dependent: 69, dependent conditional: 0, dependent unconditional: 69, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 88, independent: 60, independent conditional: 0, independent unconditional: 60, dependent: 28, dependent conditional: 0, dependent unconditional: 28, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 88, independent: 59, independent conditional: 0, independent unconditional: 59, dependent: 29, dependent conditional: 0, dependent unconditional: 29, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 29, independent: 1, independent conditional: 0, independent unconditional: 1, dependent: 28, dependent conditional: 0, dependent unconditional: 28, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 17, independent: 1, independent conditional: 0, independent unconditional: 1, dependent: 17, dependent conditional: 0, dependent unconditional: 17, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 199, independent: 70, independent conditional: 0, independent unconditional: 70, dependent: 41, dependent conditional: 0, dependent unconditional: 41, unknown: 88, unknown conditional: 0, unknown unconditional: 88] , Statistics on independence cache: Total cache size (in pairs): 88, Positive cache size: 60, Positive conditional cache size: 0, Positive unconditional cache size: 60, Negative cache size: 28, Negative conditional cache size: 0, Negative unconditional cache size: 28, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 40, Maximal queried relation: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 0.0s, 44 PlacesBefore, 44 PlacesAfterwards, 45 TransitionsBefore, 45 TransitionsAfterwards, 656 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 55, independent: 23, independent conditional: 23, independent unconditional: 0, dependent: 32, dependent conditional: 32, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 55, independent: 23, independent conditional: 0, independent unconditional: 23, dependent: 32, dependent conditional: 0, dependent unconditional: 32, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 55, independent: 23, independent conditional: 0, independent unconditional: 23, dependent: 32, dependent conditional: 0, dependent unconditional: 32, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 55, independent: 23, independent conditional: 0, independent unconditional: 23, dependent: 32, dependent conditional: 0, dependent unconditional: 32, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 19, independent: 11, independent conditional: 0, independent unconditional: 11, dependent: 8, dependent conditional: 0, dependent unconditional: 8, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 19, independent: 10, independent conditional: 0, independent unconditional: 10, dependent: 9, dependent conditional: 0, dependent unconditional: 9, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 9, independent: 1, independent conditional: 0, independent unconditional: 1, dependent: 8, dependent conditional: 0, dependent unconditional: 8, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 7, independent: 1, independent conditional: 0, independent unconditional: 1, dependent: 7, dependent conditional: 0, dependent unconditional: 7, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 55, independent: 12, independent conditional: 0, independent unconditional: 12, dependent: 24, dependent conditional: 0, dependent unconditional: 24, unknown: 19, unknown conditional: 0, unknown unconditional: 19] , Statistics on independence cache: Total cache size (in pairs): 107, Positive cache size: 71, Positive conditional cache size: 0, Positive unconditional cache size: 71, Negative cache size: 36, Negative conditional cache size: 0, Negative unconditional cache size: 36, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 0, Maximal queried relation: -1 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 0.1s, 50 PlacesBefore, 50 PlacesAfterwards, 45 TransitionsBefore, 45 TransitionsAfterwards, 496 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 1 ConcurrentYvCompositions, 0 ChoiceCompositions, 1 TotalNumberOfCompositions, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 94, independent: 52, independent conditional: 52, independent unconditional: 0, dependent: 42, dependent conditional: 42, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 94, independent: 52, independent conditional: 12, independent unconditional: 40, dependent: 42, dependent conditional: 3, dependent unconditional: 39, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 94, independent: 52, independent conditional: 12, independent unconditional: 40, dependent: 42, dependent conditional: 1, dependent unconditional: 41, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 94, independent: 52, independent conditional: 12, independent unconditional: 40, dependent: 42, dependent conditional: 1, dependent unconditional: 41, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 13, independent: 9, independent conditional: 6, independent unconditional: 3, dependent: 4, dependent conditional: 1, dependent unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 13, independent: 9, independent conditional: 0, independent unconditional: 9, dependent: 4, dependent conditional: 0, dependent unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 4, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 4, dependent conditional: 1, dependent unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 4, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 4, dependent conditional: 1, dependent unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 94, independent: 43, independent conditional: 6, independent unconditional: 37, dependent: 38, dependent conditional: 0, dependent unconditional: 38, unknown: 13, unknown conditional: 7, unknown unconditional: 6] , Statistics on independence cache: Total cache size (in pairs): 122, Positive cache size: 82, Positive conditional cache size: 6, Positive unconditional cache size: 76, Negative cache size: 40, Negative conditional cache size: 1, Negative unconditional cache size: 39, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 2, Maximal queried relation: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 0.0s, 57 PlacesBefore, 57 PlacesAfterwards, 61 TransitionsBefore, 61 TransitionsAfterwards, 536 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 1 ConcurrentYvCompositions, 0 ChoiceCompositions, 1 TotalNumberOfCompositions, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 147, independent: 117, independent conditional: 117, independent unconditional: 0, dependent: 30, dependent conditional: 30, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 147, independent: 117, independent conditional: 37, independent unconditional: 80, dependent: 30, dependent conditional: 12, dependent unconditional: 18, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 153, independent: 117, independent conditional: 36, independent unconditional: 81, dependent: 36, dependent conditional: 12, dependent unconditional: 24, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 153, independent: 117, independent conditional: 36, independent unconditional: 81, dependent: 36, dependent conditional: 12, dependent unconditional: 24, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 21, independent: 17, independent conditional: 6, independent unconditional: 11, dependent: 4, dependent conditional: 3, dependent unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 21, independent: 16, independent conditional: 0, independent unconditional: 16, dependent: 5, dependent conditional: 0, dependent unconditional: 5, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 5, independent: 1, independent conditional: 0, independent unconditional: 1, dependent: 4, dependent conditional: 3, dependent unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 5, independent: 1, independent conditional: 0, independent unconditional: 1, dependent: 5, dependent conditional: 3, dependent unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 153, independent: 100, independent conditional: 30, independent unconditional: 70, dependent: 32, dependent conditional: 9, dependent unconditional: 23, unknown: 21, unknown conditional: 9, unknown unconditional: 12] , Statistics on independence cache: Total cache size (in pairs): 144, Positive cache size: 100, Positive conditional cache size: 12, Positive unconditional cache size: 88, Negative cache size: 44, Negative conditional cache size: 4, Negative unconditional cache size: 40, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 7, Maximal queried relation: 1 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 0.0s, 65 PlacesBefore, 65 PlacesAfterwards, 78 TransitionsBefore, 78 TransitionsAfterwards, 634 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 38, independent: 23, independent conditional: 23, independent unconditional: 0, dependent: 15, dependent conditional: 15, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 38, independent: 23, independent conditional: 7, independent unconditional: 16, dependent: 15, dependent conditional: 3, dependent unconditional: 12, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 44, independent: 23, independent conditional: 4, independent unconditional: 19, dependent: 21, dependent conditional: 6, dependent unconditional: 15, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 44, independent: 23, independent conditional: 4, independent unconditional: 19, dependent: 21, dependent conditional: 6, dependent unconditional: 15, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 6, independent: 1, independent conditional: 0, independent unconditional: 1, dependent: 5, dependent conditional: 0, dependent unconditional: 5, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 6, independent: 1, independent conditional: 0, independent unconditional: 1, dependent: 5, dependent conditional: 0, dependent unconditional: 5, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 5, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 5, dependent conditional: 0, dependent unconditional: 5, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 4, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 4, dependent conditional: 0, dependent unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 44, independent: 22, independent conditional: 4, independent unconditional: 18, dependent: 16, dependent conditional: 6, dependent unconditional: 10, unknown: 6, unknown conditional: 0, unknown unconditional: 6] , Statistics on independence cache: Total cache size (in pairs): 150, Positive cache size: 101, Positive conditional cache size: 12, Positive unconditional cache size: 89, Negative cache size: 49, Negative conditional cache size: 4, Negative unconditional cache size: 45, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 6, Maximal queried relation: 2 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 0.0s, 0 PlacesBefore, 0 PlacesAfterwards, 0 TransitionsBefore, 0 TransitionsAfterwards, 0 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 150, Positive cache size: 101, Positive conditional cache size: 12, Positive unconditional cache size: 89, Negative cache size: 49, Negative conditional cache size: 4, Negative unconditional cache size: 45, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 0, Maximal queried relation: -1 - PositiveResult [Line: 802]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 745]: 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, 150 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: 3.7s, OverallIterations: 6, TraceHistogramMax: 1, PathProgramHistogramMax: 4, EmptinessCheckTime: 0.0s, AutomataDifference: 1.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 1.9s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 194 SdHoareTripleChecker+Valid, 0.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 194 mSDsluCounter, 32 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 3 mSDsCounter, 63 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 767 IncrementalHoareTripleChecker+Invalid, 830 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 63 mSolverCounterUnsat, 29 mSDtfsCounter, 767 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 24 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=605occurred in iteration=5, InterpolantAutomatonStates: 26, 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, 0.0s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 98 NumberOfCodeBlocks, 98 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 92 ConstructedInterpolants, 0 QuantifiedInterpolants, 138 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 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! [2022-12-06 06:16:12,447 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request...