/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-RepeatedSemanticLbe.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-a802222-m [2022-12-13 00:32:15,768 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-13 00:32:15,770 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-13 00:32:15,831 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-13 00:32:15,831 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-13 00:32:15,834 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-13 00:32:15,836 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-13 00:32:15,839 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-13 00:32:15,842 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-13 00:32:15,846 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-13 00:32:15,847 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-13 00:32:15,849 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-13 00:32:15,849 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-13 00:32:15,851 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-13 00:32:15,867 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-13 00:32:15,870 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-13 00:32:15,871 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-13 00:32:15,871 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-13 00:32:15,873 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-13 00:32:15,877 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-13 00:32:15,878 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-13 00:32:15,879 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-13 00:32:15,880 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-13 00:32:15,880 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-13 00:32:15,886 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-13 00:32:15,886 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-13 00:32:15,886 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-13 00:32:15,888 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-13 00:32:15,888 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-13 00:32:15,888 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-13 00:32:15,889 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-13 00:32:15,890 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-13 00:32:15,891 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-13 00:32:15,891 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-13 00:32:15,892 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-13 00:32:15,892 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-13 00:32:15,893 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-13 00:32:15,893 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-13 00:32:15,893 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-13 00:32:15,894 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-13 00:32:15,911 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-13 00:32:15,913 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-RepeatedSemanticLbe.epf [2022-12-13 00:32:15,954 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-13 00:32:15,954 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-13 00:32:15,956 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-13 00:32:15,956 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-13 00:32:15,956 INFO L138 SettingsManager]: * Use SBE=true [2022-12-13 00:32:15,956 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-13 00:32:15,957 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-13 00:32:15,957 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-13 00:32:15,957 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-13 00:32:15,957 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-13 00:32:15,958 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-13 00:32:15,958 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-13 00:32:15,958 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-13 00:32:15,958 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-13 00:32:15,958 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-13 00:32:15,958 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-13 00:32:15,958 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-13 00:32:15,959 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-13 00:32:15,959 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-13 00:32:15,959 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-12-13 00:32:15,959 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-13 00:32:15,959 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 00:32:15,959 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-13 00:32:15,959 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-13 00:32:15,960 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-13 00:32:15,960 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-13 00:32:15,960 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-13 00:32:15,960 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=REPEATED_LIPTON_PN [2022-12-13 00:32:15,960 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-12-13 00:32:16,452 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-13 00:32:16,474 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-13 00:32:16,476 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-13 00:32:16,477 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-13 00:32:16,477 INFO L275 PluginConnector]: CDTParser initialized [2022-12-13 00:32:16,478 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-atomic/szymanski.i [2022-12-13 00:32:17,505 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-13 00:32:17,738 INFO L351 CDTParser]: Found 1 translation units. [2022-12-13 00:32:17,738 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-atomic/szymanski.i [2022-12-13 00:32:17,775 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d8e4ea09b/9900205365fe4db5a816b880e43c2390/FLAGafb0185c1 [2022-12-13 00:32:17,789 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d8e4ea09b/9900205365fe4db5a816b880e43c2390 [2022-12-13 00:32:17,791 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-13 00:32:17,792 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-12-13 00:32:17,793 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-13 00:32:17,793 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-13 00:32:17,795 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-13 00:32:17,796 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 12:32:17" (1/1) ... [2022-12-13 00:32:17,797 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3c2f7aa4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:32:17, skipping insertion in model container [2022-12-13 00:32:17,797 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 12:32:17" (1/1) ... [2022-12-13 00:32:17,801 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-13 00:32:17,837 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-13 00:32:17,980 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-12-13 00:32:18,086 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 00:32:18,087 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 00:32:18,087 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 00:32:18,088 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 00:32:18,089 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 00:32:18,089 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 00:32:18,090 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 00:32:18,091 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 00:32:18,091 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 00:32:18,091 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 00:32:18,091 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 00:32:18,091 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 00:32:18,092 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 00:32:18,092 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 00:32:18,092 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 00:32:18,092 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 00:32:18,093 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 00:32:18,093 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 00:32:18,093 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 00:32:18,094 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 00:32:18,094 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 00:32:18,095 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 00:32:18,096 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] [2022-12-13 00:32:18,099 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 00:32:18,099 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 00:32:18,100 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 00:32:18,100 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 00:32:18,100 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 00:32:18,101 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 00:32:18,103 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 00:32:18,103 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 00:32:18,103 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 00:32:18,104 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 00:32:18,104 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 00:32:18,104 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 00:32:18,104 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 00:32:18,106 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 00:32:18,106 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 00:32:18,106 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 00:32:18,106 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 00:32:18,106 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 00:32:18,106 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 00:32:18,106 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 00:32:18,107 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 00:32:18,107 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 00:32:18,107 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 00:32:18,107 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 00:32:18,107 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 00:32:18,107 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 00:32:18,109 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 00:32:18,109 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 00:32:18,109 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] [2022-12-13 00:32:18,109 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 00:32:18,110 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 00:32:18,110 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 00:32:18,110 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 00:32:18,110 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 00:32:18,111 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 00:32:18,117 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 00:32:18,126 INFO L203 MainTranslator]: Completed pre-run [2022-12-13 00:32:18,143 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-12-13 00:32:18,153 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 00:32:18,153 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 00:32:18,153 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 00:32:18,153 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 00:32:18,154 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 00:32:18,154 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 00:32:18,154 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 00:32:18,154 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 00:32:18,154 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 00:32:18,154 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 00:32:18,154 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 00:32:18,155 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 00:32:18,155 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 00:32:18,155 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 00:32:18,155 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 00:32:18,155 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 00:32:18,155 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 00:32:18,156 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 00:32:18,156 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 00:32:18,156 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 00:32:18,156 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 00:32:18,156 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 00:32:18,156 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] [2022-12-13 00:32:18,157 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 00:32:18,157 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 00:32:18,157 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 00:32:18,157 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 00:32:18,157 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 00:32:18,157 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 00:32:18,158 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 00:32:18,158 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 00:32:18,158 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 00:32:18,158 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 00:32:18,158 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 00:32:18,159 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 00:32:18,159 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 00:32:18,159 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 00:32:18,160 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 00:32:18,160 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 00:32:18,160 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 00:32:18,160 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 00:32:18,160 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 00:32:18,161 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 00:32:18,161 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 00:32:18,161 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 00:32:18,161 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 00:32:18,161 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 00:32:18,161 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 00:32:18,162 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 00:32:18,162 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 00:32:18,162 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 00:32:18,162 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] [2022-12-13 00:32:18,162 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 00:32:18,163 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 00:32:18,163 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 00:32:18,164 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 00:32:18,165 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 00:32:18,165 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 00:32:18,168 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 00:32:18,197 INFO L208 MainTranslator]: Completed translation [2022-12-13 00:32:18,197 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:32:18 WrapperNode [2022-12-13 00:32:18,197 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-13 00:32:18,199 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-13 00:32:18,199 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-13 00:32:18,199 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-13 00:32:18,203 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:32:18" (1/1) ... [2022-12-13 00:32:18,214 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:32:18" (1/1) ... [2022-12-13 00:32:18,226 INFO L138 Inliner]: procedures = 171, calls = 75, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 42 [2022-12-13 00:32:18,226 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-13 00:32:18,227 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-13 00:32:18,227 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-13 00:32:18,227 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-13 00:32:18,232 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:32:18" (1/1) ... [2022-12-13 00:32:18,232 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:32:18" (1/1) ... [2022-12-13 00:32:18,234 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:32:18" (1/1) ... [2022-12-13 00:32:18,234 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:32:18" (1/1) ... [2022-12-13 00:32:18,238 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:32:18" (1/1) ... [2022-12-13 00:32:18,240 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:32:18" (1/1) ... [2022-12-13 00:32:18,241 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:32:18" (1/1) ... [2022-12-13 00:32:18,242 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:32:18" (1/1) ... [2022-12-13 00:32:18,244 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-13 00:32:18,253 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-13 00:32:18,253 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-13 00:32:18,254 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-13 00:32:18,254 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:32:18" (1/1) ... [2022-12-13 00:32:18,258 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 00:32:18,267 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-13 00:32:18,296 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) [2022-12-13 00:32:18,312 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 [2022-12-13 00:32:18,320 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-13 00:32:18,320 INFO L130 BoogieDeclarations]: Found specification of procedure thr2 [2022-12-13 00:32:18,320 INFO L138 BoogieDeclarations]: Found implementation of procedure thr2 [2022-12-13 00:32:18,320 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2022-12-13 00:32:18,321 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2022-12-13 00:32:18,321 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-13 00:32:18,321 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-12-13 00:32:18,321 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-13 00:32:18,321 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-13 00:32:18,321 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-13 00:32:18,321 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-13 00:32:18,321 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-12-13 00:32:18,321 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-13 00:32:18,321 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-13 00:32:18,322 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2022-12-13 00:32:18,491 INFO L236 CfgBuilder]: Building ICFG [2022-12-13 00:32:18,492 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-13 00:32:18,635 INFO L277 CfgBuilder]: Performing block encoding [2022-12-13 00:32:18,640 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-13 00:32:18,640 INFO L302 CfgBuilder]: Removed 8 assume(true) statements. [2022-12-13 00:32:18,642 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 12:32:18 BoogieIcfgContainer [2022-12-13 00:32:18,642 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-13 00:32:18,643 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-13 00:32:18,643 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-13 00:32:18,645 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-13 00:32:18,645 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.12 12:32:17" (1/3) ... [2022-12-13 00:32:18,646 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6083cf8b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 12:32:18, skipping insertion in model container [2022-12-13 00:32:18,646 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:32:18" (2/3) ... [2022-12-13 00:32:18,646 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6083cf8b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 12:32:18, skipping insertion in model container [2022-12-13 00:32:18,646 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 12:32:18" (3/3) ... [2022-12-13 00:32:18,647 INFO L112 eAbstractionObserver]: Analyzing ICFG szymanski.i [2022-12-13 00:32:18,659 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-13 00:32:18,659 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-12-13 00:32:18,659 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-12-13 00:32:18,722 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2022-12-13 00:32:18,777 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 100 places, 113 transitions, 242 flow [2022-12-13 00:32:18,834 INFO L130 PetriNetUnfolder]: 20/111 cut-off events. [2022-12-13 00:32:18,834 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-12-13 00:32:18,840 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. [2022-12-13 00:32:18,840 INFO L82 GeneralOperation]: Start removeDead. Operand has 100 places, 113 transitions, 242 flow [2022-12-13 00:32:18,844 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 89 places, 102 transitions, 213 flow [2022-12-13 00:32:18,846 INFO L203 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-13 00:32:18,858 INFO L174 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 89 places, 102 transitions, 213 flow [2022-12-13 00:32:18,861 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 89 places, 102 transitions, 213 flow [2022-12-13 00:32:18,889 INFO L130 PetriNetUnfolder]: 20/102 cut-off events. [2022-12-13 00:32:18,889 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-12-13 00:32:18,890 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. [2022-12-13 00:32:18,897 INFO L222 LiptonReduction]: Starting Lipton reduction on Petri net that has 89 places, 102 transitions, 213 flow [2022-12-13 00:32:18,897 INFO L226 LiptonReduction]: Number of co-enabled transitions 3672 [2022-12-13 00:32:20,723 INFO L241 LiptonReduction]: Total number of compositions: 69 [2022-12-13 00:32:20,754 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-13 00:32:20,758 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;@4642e955, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, Conditionality=CONDITIONAL_DISJUNCTIVE, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-13 00:32:20,759 INFO L358 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2022-12-13 00:32:20,765 INFO L130 PetriNetUnfolder]: 15/65 cut-off events. [2022-12-13 00:32:20,766 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 00:32:20,766 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-13 00:32:20,766 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 00:32:20,767 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2022-12-13 00:32:20,770 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 00:32:20,770 INFO L85 PathProgramCache]: Analyzing trace with hash -1271667008, now seen corresponding path program 1 times [2022-12-13 00:32:20,793 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 00:32:20,793 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1138434337] [2022-12-13 00:32:20,793 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 00:32:20,793 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 00:32:20,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 00:32:21,149 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 00:32:21,149 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 00:32:21,149 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1138434337] [2022-12-13 00:32:21,150 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1138434337] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 00:32:21,150 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 00:32:21,150 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-13 00:32:21,151 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1554243474] [2022-12-13 00:32:21,151 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 00:32:21,162 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 00:32:21,162 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 00:32:21,181 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 00:32:21,181 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 00:32:21,185 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 88 [2022-12-13 00:32:21,187 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 78 places, 88 transitions, 185 flow. Second operand has 3 states, 3 states have (on average 28.333333333333332) internal successors, (85), 3 states have internal predecessors, (85), 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) [2022-12-13 00:32:21,187 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 00:32:21,187 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 88 [2022-12-13 00:32:21,188 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 00:32:21,733 INFO L130 PetriNetUnfolder]: 3611/5557 cut-off events. [2022-12-13 00:32:21,733 INFO L131 PetriNetUnfolder]: For 59/59 co-relation queries the response was YES. [2022-12-13 00:32:21,740 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10566 conditions, 5557 events. 3611/5557 cut-off events. For 59/59 co-relation queries the response was YES. Maximal size of possible extension queue 321. Compared 33230 event pairs, 960 based on Foata normal form. 61/2255 useless extension candidates. Maximal degree in co-relation 10223. Up to 3151 conditions per place. [2022-12-13 00:32:21,811 INFO L137 encePairwiseOnDemand]: 71/88 looper letters, 66 selfloop transitions, 5 changer transitions 11/108 dead transitions. [2022-12-13 00:32:21,812 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 75 places, 108 transitions, 392 flow [2022-12-13 00:32:21,813 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 00:32:21,814 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-13 00:32:21,819 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 176 transitions. [2022-12-13 00:32:21,820 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.6666666666666666 [2022-12-13 00:32:21,821 INFO L175 Difference]: Start difference. First operand has 78 places, 88 transitions, 185 flow. Second operand 3 states and 176 transitions. [2022-12-13 00:32:21,822 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 75 places, 108 transitions, 392 flow [2022-12-13 00:32:21,824 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 72 places, 108 transitions, 385 flow, removed 0 selfloop flow, removed 3 redundant places. [2022-12-13 00:32:21,826 INFO L231 Difference]: Finished difference. Result has 74 places, 75 transitions, 182 flow [2022-12-13 00:32:21,827 INFO L277 CegarLoopForPetriNet]: {PETRI_ALPHABET=88, PETRI_DIFFERENCE_MINUEND_FLOW=160, PETRI_DIFFERENCE_MINUEND_PLACES=70, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=78, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=73, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=182, PETRI_PLACES=74, PETRI_TRANSITIONS=75} [2022-12-13 00:32:21,830 INFO L295 CegarLoopForPetriNet]: 78 programPoint places, -4 predicate places. [2022-12-13 00:32:21,830 WARN L178 eatedLiptonReduction]: Counterexample is not a run of mAbstraction. Replaying acceptance of the word... [2022-12-13 00:32:21,830 INFO L89 Accepts]: Start accepts. Operand has 74 places, 75 transitions, 182 flow [2022-12-13 00:32:21,832 INFO L95 Accepts]: Finished accepts. [2022-12-13 00:32:21,832 INFO L203 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-13 00:32:21,832 INFO L174 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 74 places, 75 transitions, 182 flow [2022-12-13 00:32:21,833 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 69 places, 75 transitions, 182 flow [2022-12-13 00:32:21,840 INFO L130 PetriNetUnfolder]: 16/121 cut-off events. [2022-12-13 00:32:21,840 INFO L131 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2022-12-13 00:32:21,840 INFO L83 FinitePrefix]: Finished finitePrefix Result has 155 conditions, 121 events. 16/121 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 22. Compared 531 event pairs, 0 based on Foata normal form. 0/51 useless extension candidates. Maximal degree in co-relation 142. Up to 11 conditions per place. [2022-12-13 00:32:21,843 INFO L222 LiptonReduction]: Starting Lipton reduction on Petri net that has 69 places, 75 transitions, 182 flow [2022-12-13 00:32:21,843 INFO L226 LiptonReduction]: Number of co-enabled transitions 2572 [2022-12-13 00:32:21,933 INFO L241 LiptonReduction]: Total number of compositions: 1 [2022-12-13 00:32:21,935 INFO L158 eatedLiptonReduction]: Time needed for LBE in milliseconds: 105 [2022-12-13 00:32:21,935 INFO L495 AbstractCegarLoop]: Abstraction has has 69 places, 75 transitions, 182 flow [2022-12-13 00:32:21,935 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 28.333333333333332) internal successors, (85), 3 states have internal predecessors, (85), 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) [2022-12-13 00:32:21,935 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-13 00:32:21,935 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 00:32:21,935 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-13 00:32:21,936 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting thr2Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2022-12-13 00:32:21,936 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 00:32:21,936 INFO L85 PathProgramCache]: Analyzing trace with hash -525326120, now seen corresponding path program 1 times [2022-12-13 00:32:21,936 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 00:32:21,936 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [250600106] [2022-12-13 00:32:21,936 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 00:32:21,937 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 00:32:21,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 00:32:22,008 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 00:32:22,009 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 00:32:22,009 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [250600106] [2022-12-13 00:32:22,009 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [250600106] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 00:32:22,009 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 00:32:22,009 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-13 00:32:22,009 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1760877368] [2022-12-13 00:32:22,009 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 00:32:22,010 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 00:32:22,010 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 00:32:22,011 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 00:32:22,011 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 00:32:22,011 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 24 out of 73 [2022-12-13 00:32:22,011 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 69 places, 75 transitions, 182 flow. Second operand has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 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) [2022-12-13 00:32:22,011 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 00:32:22,011 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 24 of 73 [2022-12-13 00:32:22,011 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 00:32:22,285 INFO L130 PetriNetUnfolder]: 3117/4785 cut-off events. [2022-12-13 00:32:22,287 INFO L131 PetriNetUnfolder]: For 346/346 co-relation queries the response was YES. [2022-12-13 00:32:22,296 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9747 conditions, 4785 events. 3117/4785 cut-off events. For 346/346 co-relation queries the response was YES. Maximal size of possible extension queue 275. Compared 27514 event pairs, 899 based on Foata normal form. 62/2198 useless extension candidates. Maximal degree in co-relation 4781. Up to 2848 conditions per place. [2022-12-13 00:32:22,304 INFO L137 encePairwiseOnDemand]: 67/73 looper letters, 47 selfloop transitions, 4 changer transitions 26/101 dead transitions. [2022-12-13 00:32:22,304 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 71 places, 101 transitions, 389 flow [2022-12-13 00:32:22,304 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 00:32:22,304 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-13 00:32:22,307 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 151 transitions. [2022-12-13 00:32:22,308 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.6894977168949772 [2022-12-13 00:32:22,308 INFO L175 Difference]: Start difference. First operand has 69 places, 75 transitions, 182 flow. Second operand 3 states and 151 transitions. [2022-12-13 00:32:22,308 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 71 places, 101 transitions, 389 flow [2022-12-13 00:32:22,315 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 69 places, 101 transitions, 379 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-12-13 00:32:22,317 INFO L231 Difference]: Finished difference. Result has 70 places, 65 transitions, 162 flow [2022-12-13 00:32:22,317 INFO L277 CegarLoopForPetriNet]: {PETRI_ALPHABET=73, PETRI_DIFFERENCE_MINUEND_FLOW=172, PETRI_DIFFERENCE_MINUEND_PLACES=67, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=75, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=71, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=162, PETRI_PLACES=70, PETRI_TRANSITIONS=65} [2022-12-13 00:32:22,318 INFO L295 CegarLoopForPetriNet]: 78 programPoint places, -8 predicate places. [2022-12-13 00:32:22,318 WARN L178 eatedLiptonReduction]: Counterexample is not a run of mAbstraction. Replaying acceptance of the word... [2022-12-13 00:32:22,318 INFO L89 Accepts]: Start accepts. Operand has 70 places, 65 transitions, 162 flow [2022-12-13 00:32:22,319 INFO L95 Accepts]: Finished accepts. [2022-12-13 00:32:22,319 INFO L203 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-13 00:32:22,319 INFO L174 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 70 places, 65 transitions, 162 flow [2022-12-13 00:32:22,320 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 63 places, 65 transitions, 162 flow [2022-12-13 00:32:22,328 INFO L130 PetriNetUnfolder]: 12/88 cut-off events. [2022-12-13 00:32:22,328 INFO L131 PetriNetUnfolder]: For 6/6 co-relation queries the response was YES. [2022-12-13 00:32:22,328 INFO L83 FinitePrefix]: Finished finitePrefix Result has 121 conditions, 88 events. 12/88 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 293 event pairs, 0 based on Foata normal form. 0/44 useless extension candidates. Maximal degree in co-relation 108. Up to 7 conditions per place. [2022-12-13 00:32:22,329 INFO L222 LiptonReduction]: Starting Lipton reduction on Petri net that has 63 places, 65 transitions, 162 flow [2022-12-13 00:32:22,329 INFO L226 LiptonReduction]: Number of co-enabled transitions 1516 [2022-12-13 00:32:22,348 INFO L241 LiptonReduction]: Total number of compositions: 1 [2022-12-13 00:32:22,349 INFO L158 eatedLiptonReduction]: Time needed for LBE in milliseconds: 31 [2022-12-13 00:32:22,349 INFO L495 AbstractCegarLoop]: Abstraction has has 64 places, 65 transitions, 162 flow [2022-12-13 00:32:22,349 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 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) [2022-12-13 00:32:22,349 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-13 00:32:22,350 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 00:32:22,350 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-13 00:32:22,350 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2022-12-13 00:32:22,351 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 00:32:22,351 INFO L85 PathProgramCache]: Analyzing trace with hash -58528400, now seen corresponding path program 1 times [2022-12-13 00:32:22,351 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 00:32:22,352 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [149823460] [2022-12-13 00:32:22,352 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 00:32:22,352 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 00:32:22,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 00:32:22,442 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 00:32:22,443 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 00:32:22,443 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [149823460] [2022-12-13 00:32:22,443 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [149823460] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 00:32:22,443 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 00:32:22,443 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-13 00:32:22,443 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1309710614] [2022-12-13 00:32:22,443 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 00:32:22,444 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-13 00:32:22,444 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 00:32:22,444 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-13 00:32:22,444 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-13 00:32:22,444 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 64 [2022-12-13 00:32:22,445 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 64 places, 65 transitions, 162 flow. Second operand has 4 states, 4 states have (on average 18.0) internal successors, (72), 4 states have internal predecessors, (72), 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) [2022-12-13 00:32:22,445 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 00:32:22,445 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 64 [2022-12-13 00:32:22,445 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 00:32:22,710 INFO L130 PetriNetUnfolder]: 2091/3334 cut-off events. [2022-12-13 00:32:22,711 INFO L131 PetriNetUnfolder]: For 382/382 co-relation queries the response was YES. [2022-12-13 00:32:22,714 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6978 conditions, 3334 events. 2091/3334 cut-off events. For 382/382 co-relation queries the response was YES. Maximal size of possible extension queue 178. Compared 17829 event pairs, 767 based on Foata normal form. 9/1956 useless extension candidates. Maximal degree in co-relation 5489. Up to 1572 conditions per place. [2022-12-13 00:32:22,719 INFO L137 encePairwiseOnDemand]: 43/64 looper letters, 54 selfloop transitions, 8 changer transitions 58/134 dead transitions. [2022-12-13 00:32:22,720 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 68 places, 134 transitions, 569 flow [2022-12-13 00:32:22,720 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-13 00:32:22,720 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-12-13 00:32:22,721 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 198 transitions. [2022-12-13 00:32:22,721 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.61875 [2022-12-13 00:32:22,721 INFO L175 Difference]: Start difference. First operand has 64 places, 65 transitions, 162 flow. Second operand 5 states and 198 transitions. [2022-12-13 00:32:22,721 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 68 places, 134 transitions, 569 flow [2022-12-13 00:32:22,723 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 67 places, 134 transitions, 561 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-12-13 00:32:22,724 INFO L231 Difference]: Finished difference. Result has 70 places, 61 transitions, 201 flow [2022-12-13 00:32:22,725 INFO L277 CegarLoopForPetriNet]: {PETRI_ALPHABET=64, PETRI_DIFFERENCE_MINUEND_FLOW=158, PETRI_DIFFERENCE_MINUEND_PLACES=63, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=65, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=57, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=201, PETRI_PLACES=70, PETRI_TRANSITIONS=61} [2022-12-13 00:32:22,725 INFO L295 CegarLoopForPetriNet]: 78 programPoint places, -8 predicate places. [2022-12-13 00:32:22,725 WARN L178 eatedLiptonReduction]: Counterexample is not a run of mAbstraction. Replaying acceptance of the word... [2022-12-13 00:32:22,725 INFO L89 Accepts]: Start accepts. Operand has 70 places, 61 transitions, 201 flow [2022-12-13 00:32:22,726 INFO L95 Accepts]: Finished accepts. [2022-12-13 00:32:22,726 INFO L203 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-13 00:32:22,726 INFO L174 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 70 places, 61 transitions, 201 flow [2022-12-13 00:32:22,727 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 66 places, 61 transitions, 201 flow [2022-12-13 00:32:22,731 INFO L130 PetriNetUnfolder]: 18/106 cut-off events. [2022-12-13 00:32:22,731 INFO L131 PetriNetUnfolder]: For 21/25 co-relation queries the response was YES. [2022-12-13 00:32:22,732 INFO L83 FinitePrefix]: Finished finitePrefix Result has 186 conditions, 106 events. 18/106 cut-off events. For 21/25 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 360 event pairs, 0 based on Foata normal form. 0/70 useless extension candidates. Maximal degree in co-relation 170. Up to 16 conditions per place. [2022-12-13 00:32:22,732 INFO L222 LiptonReduction]: Starting Lipton reduction on Petri net that has 66 places, 61 transitions, 201 flow [2022-12-13 00:32:22,733 INFO L226 LiptonReduction]: Number of co-enabled transitions 992 [2022-12-13 00:32:22,890 INFO L241 LiptonReduction]: Total number of compositions: 1 [2022-12-13 00:32:22,891 INFO L158 eatedLiptonReduction]: Time needed for LBE in milliseconds: 166 [2022-12-13 00:32:22,891 INFO L495 AbstractCegarLoop]: Abstraction has has 66 places, 61 transitions, 217 flow [2022-12-13 00:32:22,891 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 18.0) internal successors, (72), 4 states have internal predecessors, (72), 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) [2022-12-13 00:32:22,892 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-13 00:32:22,892 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 00:32:22,892 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-13 00:32:22,892 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2022-12-13 00:32:22,892 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 00:32:22,892 INFO L85 PathProgramCache]: Analyzing trace with hash -1475897531, now seen corresponding path program 1 times [2022-12-13 00:32:22,892 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 00:32:22,892 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2771895] [2022-12-13 00:32:22,892 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 00:32:22,893 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 00:32:22,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 00:32:22,923 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 00:32:22,924 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 00:32:22,924 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2771895] [2022-12-13 00:32:22,924 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2771895] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 00:32:22,924 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 00:32:22,924 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-13 00:32:22,924 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1610064779] [2022-12-13 00:32:22,924 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 00:32:22,924 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-13 00:32:22,924 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 00:32:22,925 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-13 00:32:22,925 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-13 00:32:22,925 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 59 [2022-12-13 00:32:22,925 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 66 places, 61 transitions, 217 flow. Second operand has 4 states, 4 states have (on average 18.0) internal successors, (72), 4 states have internal predecessors, (72), 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) [2022-12-13 00:32:22,925 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 00:32:22,925 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 59 [2022-12-13 00:32:22,925 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 00:32:23,114 INFO L130 PetriNetUnfolder]: 1190/2032 cut-off events. [2022-12-13 00:32:23,114 INFO L131 PetriNetUnfolder]: For 904/919 co-relation queries the response was YES. [2022-12-13 00:32:23,116 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5001 conditions, 2032 events. 1190/2032 cut-off events. For 904/919 co-relation queries the response was YES. Maximal size of possible extension queue 106. Compared 10699 event pairs, 261 based on Foata normal form. 48/1596 useless extension candidates. Maximal degree in co-relation 3843. Up to 622 conditions per place. [2022-12-13 00:32:23,122 INFO L137 encePairwiseOnDemand]: 36/59 looper letters, 62 selfloop transitions, 27 changer transitions 9/112 dead transitions. [2022-12-13 00:32:23,122 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 70 places, 112 transitions, 607 flow [2022-12-13 00:32:23,122 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-13 00:32:23,122 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-12-13 00:32:23,123 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 172 transitions. [2022-12-13 00:32:23,123 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.5830508474576271 [2022-12-13 00:32:23,123 INFO L175 Difference]: Start difference. First operand has 66 places, 61 transitions, 217 flow. Second operand 5 states and 172 transitions. [2022-12-13 00:32:23,123 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 70 places, 112 transitions, 607 flow [2022-12-13 00:32:23,126 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 69 places, 112 transitions, 578 flow, removed 12 selfloop flow, removed 1 redundant places. [2022-12-13 00:32:23,127 INFO L231 Difference]: Finished difference. Result has 73 places, 77 transitions, 421 flow [2022-12-13 00:32:23,128 INFO L277 CegarLoopForPetriNet]: {PETRI_ALPHABET=59, PETRI_DIFFERENCE_MINUEND_FLOW=202, PETRI_DIFFERENCE_MINUEND_PLACES=65, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=61, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=41, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=421, PETRI_PLACES=73, PETRI_TRANSITIONS=77} [2022-12-13 00:32:23,128 INFO L295 CegarLoopForPetriNet]: 78 programPoint places, -5 predicate places. [2022-12-13 00:32:23,128 WARN L178 eatedLiptonReduction]: Counterexample is not a run of mAbstraction. Replaying acceptance of the word... [2022-12-13 00:32:23,128 INFO L89 Accepts]: Start accepts. Operand has 73 places, 77 transitions, 421 flow [2022-12-13 00:32:23,129 INFO L95 Accepts]: Finished accepts. [2022-12-13 00:32:23,129 INFO L203 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-13 00:32:23,129 INFO L174 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 73 places, 77 transitions, 421 flow [2022-12-13 00:32:23,130 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 73 places, 77 transitions, 421 flow [2022-12-13 00:32:23,141 INFO L130 PetriNetUnfolder]: 53/200 cut-off events. [2022-12-13 00:32:23,141 INFO L131 PetriNetUnfolder]: For 196/214 co-relation queries the response was YES. [2022-12-13 00:32:23,142 INFO L83 FinitePrefix]: Finished finitePrefix Result has 486 conditions, 200 events. 53/200 cut-off events. For 196/214 co-relation queries the response was YES. Maximal size of possible extension queue 22. Compared 882 event pairs, 4 based on Foata normal form. 1/149 useless extension candidates. Maximal degree in co-relation 467. Up to 49 conditions per place. [2022-12-13 00:32:23,143 INFO L222 LiptonReduction]: Starting Lipton reduction on Petri net that has 73 places, 77 transitions, 421 flow [2022-12-13 00:32:23,143 INFO L226 LiptonReduction]: Number of co-enabled transitions 1106 [2022-12-13 00:32:23,149 ERROR L112 fgCompositionFactory]: Composing non-subsequent actions: [462] L712-->L716: Formula: (and (= v_~flag1~0_Out_2 3) (not (<= 3 v_thr1Thread1of1ForFork0_~f21~0_In_3))) InVars {thr1Thread1of1ForFork0_~f21~0=v_thr1Thread1of1ForFork0_~f21~0_In_3} OutVars{thr1Thread1of1ForFork0_~f21~0=v_thr1Thread1of1ForFork0_~f21~0_In_3, ~flag1~0=v_~flag1~0_Out_2} 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] [2022-12-13 00:32:23,174 INFO L241 LiptonReduction]: Total number of compositions: 1 [2022-12-13 00:32:23,175 INFO L158 eatedLiptonReduction]: Time needed for LBE in milliseconds: 47 [2022-12-13 00:32:23,176 INFO L495 AbstractCegarLoop]: Abstraction has has 73 places, 77 transitions, 423 flow [2022-12-13 00:32:23,176 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 18.0) internal successors, (72), 4 states have internal predecessors, (72), 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) [2022-12-13 00:32:23,176 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-13 00:32:23,176 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 00:32:23,176 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-12-13 00:32:23,176 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2022-12-13 00:32:23,176 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 00:32:23,177 INFO L85 PathProgramCache]: Analyzing trace with hash 1238336207, now seen corresponding path program 2 times [2022-12-13 00:32:23,177 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 00:32:23,177 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [812121982] [2022-12-13 00:32:23,177 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 00:32:23,177 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 00:32:23,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 00:32:23,207 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 00:32:23,207 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 00:32:23,207 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [812121982] [2022-12-13 00:32:23,207 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [812121982] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 00:32:23,207 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 00:32:23,208 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-13 00:32:23,208 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [258151181] [2022-12-13 00:32:23,208 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 00:32:23,208 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-13 00:32:23,208 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 00:32:23,208 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-13 00:32:23,209 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-13 00:32:23,209 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 60 [2022-12-13 00:32:23,209 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 73 places, 77 transitions, 423 flow. Second operand has 4 states, 4 states have (on average 18.0) internal successors, (72), 4 states have internal predecessors, (72), 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) [2022-12-13 00:32:23,209 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 00:32:23,209 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 60 [2022-12-13 00:32:23,209 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 00:32:23,458 INFO L130 PetriNetUnfolder]: 1573/2763 cut-off events. [2022-12-13 00:32:23,458 INFO L131 PetriNetUnfolder]: For 3217/3244 co-relation queries the response was YES. [2022-12-13 00:32:23,463 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8442 conditions, 2763 events. 1573/2763 cut-off events. For 3217/3244 co-relation queries the response was YES. Maximal size of possible extension queue 132. Compared 16304 event pairs, 591 based on Foata normal form. 66/2191 useless extension candidates. Maximal degree in co-relation 7021. Up to 1577 conditions per place. [2022-12-13 00:32:23,471 INFO L137 encePairwiseOnDemand]: 43/60 looper letters, 99 selfloop transitions, 24 changer transitions 2/139 dead transitions. [2022-12-13 00:32:23,472 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 77 places, 139 transitions, 1038 flow [2022-12-13 00:32:23,472 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-13 00:32:23,472 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-12-13 00:32:23,472 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 182 transitions. [2022-12-13 00:32:23,473 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.6066666666666667 [2022-12-13 00:32:23,473 INFO L175 Difference]: Start difference. First operand has 73 places, 77 transitions, 423 flow. Second operand 5 states and 182 transitions. [2022-12-13 00:32:23,473 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 77 places, 139 transitions, 1038 flow [2022-12-13 00:32:23,479 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 77 places, 139 transitions, 1028 flow, removed 5 selfloop flow, removed 0 redundant places. [2022-12-13 00:32:23,481 INFO L231 Difference]: Finished difference. Result has 81 places, 97 transitions, 717 flow [2022-12-13 00:32:23,481 INFO L277 CegarLoopForPetriNet]: {PETRI_ALPHABET=60, PETRI_DIFFERENCE_MINUEND_FLOW=405, PETRI_DIFFERENCE_MINUEND_PLACES=73, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=76, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=57, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=717, PETRI_PLACES=81, PETRI_TRANSITIONS=97} [2022-12-13 00:32:23,481 INFO L295 CegarLoopForPetriNet]: 78 programPoint places, 3 predicate places. [2022-12-13 00:32:23,481 WARN L178 eatedLiptonReduction]: Counterexample is not a run of mAbstraction. Replaying acceptance of the word... [2022-12-13 00:32:23,481 INFO L89 Accepts]: Start accepts. Operand has 81 places, 97 transitions, 717 flow [2022-12-13 00:32:23,482 INFO L95 Accepts]: Finished accepts. [2022-12-13 00:32:23,483 INFO L203 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-13 00:32:23,483 INFO L174 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 81 places, 97 transitions, 717 flow [2022-12-13 00:32:23,483 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 81 places, 97 transitions, 717 flow [2022-12-13 00:32:23,497 INFO L130 PetriNetUnfolder]: 93/327 cut-off events. [2022-12-13 00:32:23,497 INFO L131 PetriNetUnfolder]: For 517/541 co-relation queries the response was YES. [2022-12-13 00:32:23,498 INFO L83 FinitePrefix]: Finished finitePrefix Result has 941 conditions, 327 events. 93/327 cut-off events. For 517/541 co-relation queries the response was YES. Maximal size of possible extension queue 30. Compared 1707 event pairs, 4 based on Foata normal form. 1/239 useless extension candidates. Maximal degree in co-relation 918. Up to 84 conditions per place. [2022-12-13 00:32:23,500 INFO L222 LiptonReduction]: Starting Lipton reduction on Petri net that has 81 places, 97 transitions, 717 flow [2022-12-13 00:32:23,500 INFO L226 LiptonReduction]: Number of co-enabled transitions 1376 [2022-12-13 00:32:23,505 ERROR L112 fgCompositionFactory]: Composing non-subsequent actions: [399] $Ultimate##0-->L705: Formula: (and (= v_thr1Thread1of1ForFork0_~_.base_5 |v_thr1Thread1of1ForFork0_#in~_.base_5|) (= |v_thr1Thread1of1ForFork0_#in~_.offset_5| v_thr1Thread1of1ForFork0_~_.offset_5) (= v_~flag1~0_24 1)) InVars {thr1Thread1of1ForFork0_#in~_.offset=|v_thr1Thread1of1ForFork0_#in~_.offset_5|, thr1Thread1of1ForFork0_#in~_.base=|v_thr1Thread1of1ForFork0_#in~_.base_5|} OutVars{thr1Thread1of1ForFork0_~_.base=v_thr1Thread1of1ForFork0_~_.base_5, thr1Thread1of1ForFork0_#in~_.offset=|v_thr1Thread1of1ForFork0_#in~_.offset_5|, ~flag1~0=v_~flag1~0_24, thr1Thread1of1ForFork0_#in~_.base=|v_thr1Thread1of1ForFork0_#in~_.base_5|, thr1Thread1of1ForFork0_~_.offset=v_thr1Thread1of1ForFork0_~_.offset_5} AuxVars[] AssignedVars[thr1Thread1of1ForFork0_~_.base, ~flag1~0, thr1Thread1of1ForFork0_~_.offset] and [462] L712-->L716: Formula: (and (= v_~flag1~0_Out_2 3) (not (<= 3 v_thr1Thread1of1ForFork0_~f21~0_In_3))) InVars {thr1Thread1of1ForFork0_~f21~0=v_thr1Thread1of1ForFork0_~f21~0_In_3} OutVars{thr1Thread1of1ForFork0_~f21~0=v_thr1Thread1of1ForFork0_~f21~0_In_3, ~flag1~0=v_~flag1~0_Out_2} AuxVars[] AssignedVars[~flag1~0] [2022-12-13 00:32:23,541 INFO L241 LiptonReduction]: Total number of compositions: 1 [2022-12-13 00:32:23,541 INFO L158 eatedLiptonReduction]: Time needed for LBE in milliseconds: 60 [2022-12-13 00:32:23,542 INFO L495 AbstractCegarLoop]: Abstraction has has 81 places, 97 transitions, 723 flow [2022-12-13 00:32:23,542 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 18.0) internal successors, (72), 4 states have internal predecessors, (72), 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) [2022-12-13 00:32:23,542 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-13 00:32:23,542 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 00:32:23,542 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-12-13 00:32:23,542 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2022-12-13 00:32:23,542 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 00:32:23,542 INFO L85 PathProgramCache]: Analyzing trace with hash 1520713925, now seen corresponding path program 3 times [2022-12-13 00:32:23,542 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 00:32:23,543 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1089397323] [2022-12-13 00:32:23,543 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 00:32:23,543 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 00:32:23,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 00:32:23,570 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 00:32:23,570 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 00:32:23,570 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1089397323] [2022-12-13 00:32:23,570 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1089397323] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 00:32:23,570 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 00:32:23,570 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-13 00:32:23,570 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1994167469] [2022-12-13 00:32:23,570 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 00:32:23,571 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-13 00:32:23,571 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 00:32:23,571 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-13 00:32:23,571 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-13 00:32:23,571 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 60 [2022-12-13 00:32:23,571 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 81 places, 97 transitions, 723 flow. Second operand has 4 states, 4 states have (on average 15.0) internal successors, (60), 4 states have internal predecessors, (60), 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) [2022-12-13 00:32:23,572 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 00:32:23,572 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 60 [2022-12-13 00:32:23,572 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 00:32:23,782 INFO L130 PetriNetUnfolder]: 1669/2760 cut-off events. [2022-12-13 00:32:23,782 INFO L131 PetriNetUnfolder]: For 6559/6747 co-relation queries the response was YES. [2022-12-13 00:32:23,788 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9638 conditions, 2760 events. 1669/2760 cut-off events. For 6559/6747 co-relation queries the response was YES. Maximal size of possible extension queue 159. Compared 14847 event pairs, 538 based on Foata normal form. 88/2059 useless extension candidates. Maximal degree in co-relation 7170. Up to 1402 conditions per place. [2022-12-13 00:32:23,790 INFO L137 encePairwiseOnDemand]: 43/60 looper letters, 0 selfloop transitions, 0 changer transitions 133/133 dead transitions. [2022-12-13 00:32:23,791 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 77 places, 133 transitions, 1075 flow [2022-12-13 00:32:23,791 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-13 00:32:23,791 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-12-13 00:32:23,791 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 144 transitions. [2022-12-13 00:32:23,792 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.48 [2022-12-13 00:32:23,792 INFO L175 Difference]: Start difference. First operand has 81 places, 97 transitions, 723 flow. Second operand 5 states and 144 transitions. [2022-12-13 00:32:23,792 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 77 places, 133 transitions, 1075 flow [2022-12-13 00:32:23,805 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 75 places, 133 transitions, 1034 flow, removed 14 selfloop flow, removed 2 redundant places. [2022-12-13 00:32:23,806 INFO L231 Difference]: Finished difference. Result has 75 places, 0 transitions, 0 flow [2022-12-13 00:32:23,806 INFO L277 CegarLoopForPetriNet]: {PETRI_ALPHABET=60, PETRI_DIFFERENCE_MINUEND_FLOW=626, PETRI_DIFFERENCE_MINUEND_PLACES=71, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=87, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=87, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=0, PETRI_PLACES=75, PETRI_TRANSITIONS=0} [2022-12-13 00:32:23,806 INFO L295 CegarLoopForPetriNet]: 78 programPoint places, -3 predicate places. [2022-12-13 00:32:23,807 INFO L203 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-13 00:32:23,807 INFO L174 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 75 places, 0 transitions, 0 flow [2022-12-13 00:32:23,807 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 0 places, 0 transitions, 0 flow [2022-12-13 00:32:23,807 INFO L130 PetriNetUnfolder]: 0/0 cut-off events. [2022-12-13 00:32:23,807 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 00:32:23,807 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. [2022-12-13 00:32:23,807 INFO L222 LiptonReduction]: Starting Lipton reduction on Petri net that has 0 places, 0 transitions, 0 flow [2022-12-13 00:32:23,807 INFO L226 LiptonReduction]: Number of co-enabled transitions 0 [2022-12-13 00:32:23,808 INFO L241 LiptonReduction]: Total number of compositions: 0 [2022-12-13 00:32:23,808 INFO L158 eatedLiptonReduction]: Time needed for LBE in milliseconds: 1 [2022-12-13 00:32:23,808 INFO L495 AbstractCegarLoop]: Abstraction has has 0 places, 0 transitions, 0 flow [2022-12-13 00:32:23,808 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.0) internal successors, (60), 4 states have internal predecessors, (60), 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) [2022-12-13 00:32:23,810 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr2Err0ASSERT_VIOLATIONERROR_FUNCTION (5 of 6 remaining) [2022-12-13 00:32:23,810 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr1Err0ASSERT_VIOLATIONERROR_FUNCTION (4 of 6 remaining) [2022-12-13 00:32:23,810 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (3 of 6 remaining) [2022-12-13 00:32:23,811 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 6 remaining) [2022-12-13 00:32:23,811 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr2Err0ASSERT_VIOLATIONERROR_FUNCTION (1 of 6 remaining) [2022-12-13 00:32:23,811 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr1Err0ASSERT_VIOLATIONERROR_FUNCTION (0 of 6 remaining) [2022-12-13 00:32:23,811 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-12-13 00:32:23,811 INFO L445 BasicCegarLoop]: Path program histogram: [3, 1, 1, 1] [2022-12-13 00:32:23,814 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-12-13 00:32:23,814 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-13 00:32:23,816 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.12 12:32:23 BasicIcfg [2022-12-13 00:32:23,816 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-13 00:32:23,817 INFO L158 Benchmark]: Toolchain (without parser) took 6025.20ms. Allocated memory was 200.3MB in the beginning and 366.0MB in the end (delta: 165.7MB). Free memory was 174.8MB in the beginning and 220.0MB in the end (delta: -45.2MB). Peak memory consumption was 120.9MB. Max. memory is 8.0GB. [2022-12-13 00:32:23,817 INFO L158 Benchmark]: CDTParser took 0.09ms. Allocated memory is still 127.9MB. Free memory is still 104.9MB. There was no memory consumed. Max. memory is 8.0GB. [2022-12-13 00:32:23,817 INFO L158 Benchmark]: CACSL2BoogieTranslator took 404.44ms. Allocated memory is still 200.3MB. Free memory was 174.7MB in the beginning and 148.1MB in the end (delta: 26.6MB). Peak memory consumption was 27.3MB. Max. memory is 8.0GB. [2022-12-13 00:32:23,817 INFO L158 Benchmark]: Boogie Procedure Inliner took 27.68ms. Allocated memory is still 200.3MB. Free memory was 148.1MB in the beginning and 146.4MB in the end (delta: 1.7MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-12-13 00:32:23,817 INFO L158 Benchmark]: Boogie Preprocessor took 17.16ms. Allocated memory is still 200.3MB. Free memory was 146.4MB in the beginning and 144.6MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-12-13 00:32:23,818 INFO L158 Benchmark]: RCFGBuilder took 388.27ms. Allocated memory is still 200.3MB. Free memory was 144.6MB in the beginning and 176.1MB in the end (delta: -31.5MB). Peak memory consumption was 16.8MB. Max. memory is 8.0GB. [2022-12-13 00:32:23,818 INFO L158 Benchmark]: TraceAbstraction took 5173.33ms. Allocated memory was 200.3MB in the beginning and 366.0MB in the end (delta: 165.7MB). Free memory was 175.1MB in the beginning and 220.0MB in the end (delta: -44.9MB). Peak memory consumption was 121.3MB. Max. memory is 8.0GB. [2022-12-13 00:32:23,819 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.09ms. Allocated memory is still 127.9MB. Free memory is still 104.9MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 404.44ms. Allocated memory is still 200.3MB. Free memory was 174.7MB in the beginning and 148.1MB in the end (delta: 26.6MB). Peak memory consumption was 27.3MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 27.68ms. Allocated memory is still 200.3MB. Free memory was 148.1MB in the beginning and 146.4MB in the end (delta: 1.7MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * Boogie Preprocessor took 17.16ms. Allocated memory is still 200.3MB. Free memory was 146.4MB in the beginning and 144.6MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * RCFGBuilder took 388.27ms. Allocated memory is still 200.3MB. Free memory was 144.6MB in the beginning and 176.1MB in the end (delta: -31.5MB). Peak memory consumption was 16.8MB. Max. memory is 8.0GB. * TraceAbstraction took 5173.33ms. Allocated memory was 200.3MB in the beginning and 366.0MB in the end (delta: 165.7MB). Free memory was 175.1MB in the beginning and 220.0MB in the end (delta: -44.9MB). Peak memory consumption was 121.3MB. 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, 78 PlacesAfterwards, 102 TransitionsBefore, 88 TransitionsAfterwards, 3672 CoEnabledTransitionPairs, 3 FixpointIterations, 0 TrivialSequentialCompositions, 8 ConcurrentSequentialCompositions, 16 TrivialYvCompositions, 34 ConcurrentYvCompositions, 11 ChoiceCompositions, 69 TotalNumberOfCompositions, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 3953, independent: 3825, independent conditional: 3825, independent unconditional: 0, dependent: 128, dependent conditional: 128, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 3953, independent: 3825, independent conditional: 0, independent unconditional: 3825, dependent: 128, dependent conditional: 0, dependent unconditional: 128, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 3953, independent: 3825, independent conditional: 0, independent unconditional: 3825, dependent: 128, dependent conditional: 0, dependent unconditional: 128, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 3953, independent: 3825, independent conditional: 0, independent unconditional: 3825, dependent: 128, dependent conditional: 0, dependent unconditional: 128, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 2742, independent: 2685, independent conditional: 0, independent unconditional: 2685, dependent: 57, dependent conditional: 0, dependent unconditional: 57, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 2742, independent: 2643, independent conditional: 0, independent unconditional: 2643, dependent: 99, dependent conditional: 0, dependent unconditional: 99, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 99, independent: 42, independent conditional: 0, independent unconditional: 42, dependent: 57, dependent conditional: 0, dependent unconditional: 57, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 115, independent: 32, independent conditional: 0, independent unconditional: 32, dependent: 84, dependent conditional: 0, dependent unconditional: 84, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 3953, independent: 1140, independent conditional: 0, independent unconditional: 1140, dependent: 71, dependent conditional: 0, dependent unconditional: 71, unknown: 2742, unknown conditional: 0, unknown unconditional: 2742] , Statistics on independence cache: Total cache size (in pairs): 4873, Positive cache size: 4816, Positive conditional cache size: 0, Positive unconditional cache size: 4816, Negative cache size: 57, Negative conditional cache size: 0, Negative unconditional cache size: 57, 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, 69 PlacesBefore, 69 PlacesAfterwards, 75 TransitionsBefore, 75 TransitionsAfterwards, 2572 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 1 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 1 TotalNumberOfCompositions, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 410, independent: 330, independent conditional: 330, independent unconditional: 0, dependent: 80, dependent conditional: 80, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 410, independent: 330, independent conditional: 0, independent unconditional: 330, dependent: 80, dependent conditional: 0, dependent unconditional: 80, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 410, independent: 330, independent conditional: 0, independent unconditional: 330, dependent: 80, dependent conditional: 0, dependent unconditional: 80, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 410, independent: 330, independent conditional: 0, independent unconditional: 330, dependent: 80, dependent conditional: 0, dependent unconditional: 80, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 224, independent: 191, independent conditional: 0, independent unconditional: 191, dependent: 33, dependent conditional: 0, dependent unconditional: 33, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 224, independent: 187, independent conditional: 0, independent unconditional: 187, dependent: 37, dependent conditional: 0, dependent unconditional: 37, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 37, independent: 4, independent conditional: 0, independent unconditional: 4, dependent: 33, dependent conditional: 0, dependent unconditional: 33, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 65, independent: 3, independent conditional: 0, independent unconditional: 3, dependent: 62, dependent conditional: 0, dependent unconditional: 62, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 410, independent: 139, independent conditional: 0, independent unconditional: 139, dependent: 47, dependent conditional: 0, dependent unconditional: 47, unknown: 224, unknown conditional: 0, unknown unconditional: 224] , Statistics on independence cache: Total cache size (in pairs): 226, Positive cache size: 193, Positive conditional cache size: 0, Positive unconditional cache size: 193, Negative cache size: 33, Negative conditional cache size: 0, Negative unconditional cache size: 33, 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, 63 PlacesBefore, 64 PlacesAfterwards, 65 TransitionsBefore, 65 TransitionsAfterwards, 1516 CoEnabledTransitionPairs, 2 FixpointIterations, 1 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 1 TotalNumberOfCompositions, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 332, independent: 268, independent conditional: 268, independent unconditional: 0, dependent: 64, dependent conditional: 64, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 332, independent: 268, independent conditional: 12, independent unconditional: 256, dependent: 64, dependent conditional: 0, dependent unconditional: 64, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 332, independent: 268, independent conditional: 0, independent unconditional: 268, dependent: 64, dependent conditional: 0, dependent unconditional: 64, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 332, independent: 268, independent conditional: 0, independent unconditional: 268, dependent: 64, dependent conditional: 0, dependent unconditional: 64, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 121, independent: 106, independent conditional: 0, independent unconditional: 106, dependent: 15, dependent conditional: 0, dependent unconditional: 15, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 121, independent: 105, independent conditional: 0, independent unconditional: 105, dependent: 16, dependent conditional: 0, dependent unconditional: 16, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 16, independent: 1, independent conditional: 0, independent unconditional: 1, dependent: 15, dependent conditional: 0, dependent unconditional: 15, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 10, independent: 1, independent conditional: 0, independent unconditional: 1, dependent: 9, dependent conditional: 0, dependent unconditional: 9, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 332, independent: 162, independent conditional: 0, independent unconditional: 162, dependent: 49, dependent conditional: 0, dependent unconditional: 49, unknown: 121, unknown conditional: 0, unknown unconditional: 121] , Statistics on independence cache: Total cache size (in pairs): 347, Positive cache size: 299, Positive conditional cache size: 0, Positive unconditional cache size: 299, Negative cache size: 48, Negative conditional cache size: 0, Negative unconditional cache size: 48, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 12, Maximal queried relation: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 0.2s, 66 PlacesBefore, 66 PlacesAfterwards, 61 TransitionsBefore, 61 TransitionsAfterwards, 992 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 1 ConcurrentYvCompositions, 0 ChoiceCompositions, 1 TotalNumberOfCompositions, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 170, independent: 128, independent conditional: 128, 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: 170, independent: 128, independent conditional: 57, independent unconditional: 71, 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: 170, independent: 128, independent conditional: 45, independent unconditional: 83, 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: 170, independent: 128, independent conditional: 45, independent unconditional: 83, 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: 36, independent: 27, independent conditional: 10, independent unconditional: 17, dependent: 9, dependent conditional: 1, dependent unconditional: 8, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 36, independent: 24, independent conditional: 0, independent unconditional: 24, dependent: 12, dependent conditional: 0, dependent unconditional: 12, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 12, independent: 3, independent conditional: 0, independent unconditional: 3, dependent: 9, dependent conditional: 1, dependent unconditional: 8, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 9, independent: 2, independent conditional: 0, independent unconditional: 2, dependent: 7, dependent conditional: 1, dependent unconditional: 6, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 170, independent: 101, independent conditional: 35, independent unconditional: 66, dependent: 33, dependent conditional: 0, dependent unconditional: 33, unknown: 36, unknown conditional: 11, unknown unconditional: 25] , Statistics on independence cache: Total cache size (in pairs): 387, Positive cache size: 330, Positive conditional cache size: 10, Positive unconditional cache size: 320, Negative cache size: 57, Negative conditional cache size: 1, Negative unconditional cache size: 56, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 14, Maximal queried relation: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 0.0s, 73 PlacesBefore, 73 PlacesAfterwards, 77 TransitionsBefore, 77 TransitionsAfterwards, 1106 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 1 ConcurrentYvCompositions, 0 ChoiceCompositions, 1 TotalNumberOfCompositions, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 135, independent: 105, independent conditional: 105, 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: 135, independent: 105, independent conditional: 11, independent unconditional: 94, dependent: 30, dependent conditional: 2, dependent unconditional: 28, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 137, independent: 105, independent conditional: 8, independent unconditional: 97, dependent: 32, dependent conditional: 4, dependent unconditional: 28, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 137, independent: 105, independent conditional: 8, independent unconditional: 97, dependent: 32, dependent conditional: 4, dependent unconditional: 28, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 9, independent: 5, independent conditional: 1, independent unconditional: 4, 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: 9, independent: 5, independent conditional: 0, independent unconditional: 5, 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: 3, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 3, dependent conditional: 1, dependent unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 137, independent: 100, independent conditional: 7, independent unconditional: 93, dependent: 28, dependent conditional: 3, dependent unconditional: 25, unknown: 9, unknown conditional: 2, unknown unconditional: 7] , Statistics on independence cache: Total cache size (in pairs): 413, Positive cache size: 352, Positive conditional cache size: 11, Positive unconditional cache size: 341, Negative cache size: 61, Negative conditional cache size: 2, Negative unconditional cache size: 59, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 3, Maximal queried relation: 1 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 0.0s, 81 PlacesBefore, 81 PlacesAfterwards, 97 TransitionsBefore, 97 TransitionsAfterwards, 1376 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 1 ConcurrentYvCompositions, 0 ChoiceCompositions, 1 TotalNumberOfCompositions, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 107, independent: 75, independent conditional: 75, 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: 107, independent: 75, independent conditional: 19, independent unconditional: 56, dependent: 32, dependent conditional: 8, dependent unconditional: 24, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 111, independent: 75, independent conditional: 16, independent unconditional: 59, dependent: 36, dependent conditional: 4, dependent unconditional: 32, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 111, independent: 75, independent conditional: 16, independent unconditional: 59, dependent: 36, dependent conditional: 4, dependent unconditional: 32, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 12, independent: 9, independent conditional: 6, independent unconditional: 3, dependent: 3, dependent conditional: 0, dependent unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 12, independent: 9, independent conditional: 0, independent unconditional: 9, dependent: 3, dependent conditional: 0, dependent unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 3, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 3, dependent conditional: 0, dependent unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 2, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 2, dependent conditional: 0, dependent unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 111, independent: 66, independent conditional: 10, independent unconditional: 56, dependent: 33, dependent conditional: 4, dependent unconditional: 29, unknown: 12, unknown conditional: 6, unknown unconditional: 6] , Statistics on independence cache: Total cache size (in pairs): 442, Positive cache size: 378, Positive conditional cache size: 17, Positive unconditional cache size: 361, Negative cache size: 64, Negative conditional cache size: 2, Negative unconditional cache size: 62, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 11, 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): 442, Positive cache size: 378, Positive conditional cache size: 17, Positive unconditional cache size: 361, Negative cache size: 64, Negative conditional cache size: 2, Negative unconditional cache size: 62, 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: 5.0s, OverallIterations: 6, TraceHistogramMax: 1, PathProgramHistogramMax: 3, EmptinessCheckTime: 0.0s, AutomataDifference: 2.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 2.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 270 SdHoareTripleChecker+Valid, 0.7s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 270 mSDsluCounter, 58 SdHoareTripleChecker+Invalid, 0.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 11 mSDsCounter, 71 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 976 IncrementalHoareTripleChecker+Invalid, 1047 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 71 mSolverCounterUnsat, 47 mSDtfsCounter, 976 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=723occurred 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, 0.1s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 98 NumberOfCodeBlocks, 98 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 92 ConstructedInterpolants, 0 QuantifiedInterpolants, 144 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! [2022-12-13 00:32:23,835 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...