/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-RepeatedSemanticLbeWithDisjunctivePredicates.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/weaver/parallel-bakery-4.wvr.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.repeated-lipton-8d0d62b [2022-12-06 07:26:19,864 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-06 07:26:19,866 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-06 07:26:19,907 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-06 07:26:19,908 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-06 07:26:19,910 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-06 07:26:19,913 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-06 07:26:19,917 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-06 07:26:19,921 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-06 07:26:19,925 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-06 07:26:19,926 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-06 07:26:19,928 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-06 07:26:19,928 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-06 07:26:19,930 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-06 07:26:19,943 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-06 07:26:19,947 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-06 07:26:19,948 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-06 07:26:19,950 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-06 07:26:19,953 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-06 07:26:19,958 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-06 07:26:19,959 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-06 07:26:19,961 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-06 07:26:19,961 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-06 07:26:19,962 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-06 07:26:19,968 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-06 07:26:19,969 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-06 07:26:19,969 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-06 07:26:19,970 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-06 07:26:19,971 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-06 07:26:19,971 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-06 07:26:19,972 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-06 07:26:19,973 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-06 07:26:19,974 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-06 07:26:19,975 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-06 07:26:19,975 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-06 07:26:19,976 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-06 07:26:19,976 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-06 07:26:19,976 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-06 07:26:19,976 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-06 07:26:19,977 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-06 07:26:19,978 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-06 07:26:19,980 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-RepeatedSemanticLbeWithDisjunctivePredicates.epf [2022-12-06 07:26:20,010 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-06 07:26:20,010 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-06 07:26:20,012 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-06 07:26:20,012 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-06 07:26:20,012 INFO L138 SettingsManager]: * Use SBE=true [2022-12-06 07:26:20,013 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-06 07:26:20,013 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-06 07:26:20,014 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-06 07:26:20,014 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-06 07:26:20,014 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-06 07:26:20,015 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-06 07:26:20,015 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-06 07:26:20,015 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-06 07:26:20,015 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-06 07:26:20,015 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-06 07:26:20,015 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-06 07:26:20,016 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-06 07:26:20,016 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-06 07:26:20,016 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-06 07:26:20,016 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-12-06 07:26:20,016 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-06 07:26:20,016 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-06 07:26:20,016 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-06 07:26:20,017 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-06 07:26:20,017 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-06 07:26:20,017 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-06 07:26:20,017 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-06 07:26:20,017 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=REPEATED_LIPTON_PN [2022-12-06 07:26:20,017 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-12-06 07:26:20,327 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-06 07:26:20,345 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-06 07:26:20,347 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-06 07:26:20,348 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-06 07:26:20,348 INFO L275 PluginConnector]: CDTParser initialized [2022-12-06 07:26:20,349 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/parallel-bakery-4.wvr.c [2022-12-06 07:26:21,381 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-06 07:26:21,616 INFO L351 CDTParser]: Found 1 translation units. [2022-12-06 07:26:21,617 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/parallel-bakery-4.wvr.c [2022-12-06 07:26:21,623 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0f15c3692/4f3f69c4d2ef454dbb767d5d98b7d49c/FLAGcc3070924 [2022-12-06 07:26:21,633 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0f15c3692/4f3f69c4d2ef454dbb767d5d98b7d49c [2022-12-06 07:26:21,636 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-06 07:26:21,637 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-12-06 07:26:21,638 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-06 07:26:21,638 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-06 07:26:21,640 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-06 07:26:21,641 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 07:26:21" (1/1) ... [2022-12-06 07:26:21,642 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@10085d2b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 07:26:21, skipping insertion in model container [2022-12-06 07:26:21,642 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 07:26:21" (1/1) ... [2022-12-06 07:26:21,648 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-06 07:26:21,682 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-06 07:26:21,846 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 07:26:21,847 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 07:26:21,847 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 07:26:21,849 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 07:26:21,850 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 07:26:21,852 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 07:26:21,852 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 07:26:21,853 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 07:26:21,853 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 07:26:21,855 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 07:26:21,855 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 07:26:21,856 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 07:26:21,856 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 07:26:21,857 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 07:26:21,857 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 07:26:21,859 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 07:26:21,860 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 07:26:21,860 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 07:26:21,860 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 07:26:21,861 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 07:26:21,861 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 07:26:21,861 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 07:26:21,862 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 07:26:21,862 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 07:26:21,862 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 07:26:21,863 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 07:26:21,863 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 07:26:21,863 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 07:26:21,864 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 07:26:21,864 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 07:26:21,870 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 07:26:21,872 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 07:26:21,872 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 07:26:21,873 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 07:26:21,874 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 07:26:21,875 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 07:26:21,875 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 07:26:21,877 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 07:26:21,877 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 07:26:21,878 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 07:26:21,878 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 07:26:21,878 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 07:26:21,878 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 07:26:21,879 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 07:26:21,879 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 07:26:21,881 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 07:26:21,881 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 07:26:21,882 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 07:26:21,882 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 07:26:21,884 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 07:26:21,884 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 07:26:21,887 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 07:26:21,887 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 07:26:21,889 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 07:26:21,889 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 07:26:21,889 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 07:26:21,889 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 07:26:21,890 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 07:26:21,890 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 07:26:21,890 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 07:26:21,892 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 07:26:21,892 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 07:26:21,893 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 07:26:21,896 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 07:26:21,896 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 07:26:21,897 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 07:26:21,897 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 07:26:21,898 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 07:26:21,898 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 07:26:21,898 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 07:26:21,898 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 07:26:21,899 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 07:26:21,899 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 07:26:21,900 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 07:26:21,900 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 07:26:21,901 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 07:26:21,901 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 07:26:21,902 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 07:26:21,902 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 07:26:21,903 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 07:26:21,903 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 07:26:21,903 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 07:26:21,903 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 07:26:21,904 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 07:26:21,905 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 07:26:21,905 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 07:26:21,905 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 07:26:21,905 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 07:26:21,906 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 07:26:21,906 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 07:26:21,908 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 07:26:21,910 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 07:26:21,910 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 07:26:21,911 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 07:26:21,912 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 07:26:21,915 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 07:26:21,916 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 07:26:21,917 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 07:26:21,917 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 07:26:21,917 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 07:26:21,918 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 07:26:21,918 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 07:26:21,918 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 07:26:21,918 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 07:26:21,918 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 07:26:21,920 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 07:26:21,920 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 07:26:21,920 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 07:26:21,920 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 07:26:21,922 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 07:26:21,922 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 07:26:21,923 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 07:26:21,923 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 07:26:21,924 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 07:26:21,925 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 07:26:21,925 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 07:26:21,926 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 07:26:21,926 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 07:26:21,926 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 07:26:21,926 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 07:26:21,947 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/parallel-bakery-4.wvr.c[7978,7991] [2022-12-06 07:26:21,952 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-06 07:26:21,962 INFO L203 MainTranslator]: Completed pre-run [2022-12-06 07:26:21,981 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 07:26:21,982 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 07:26:21,982 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 07:26:21,983 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 07:26:21,983 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 07:26:21,985 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 07:26:21,985 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 07:26:21,985 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 07:26:21,986 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 07:26:21,986 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 07:26:21,986 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 07:26:21,986 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 07:26:21,987 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 07:26:21,987 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 07:26:21,987 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 07:26:21,988 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 07:26:21,989 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 07:26:21,989 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 07:26:21,989 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 07:26:21,996 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 07:26:21,997 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 07:26:21,997 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 07:26:21,997 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 07:26:21,998 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 07:26:21,998 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 07:26:21,998 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 07:26:21,999 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 07:26:21,999 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 07:26:21,999 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 07:26:21,999 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 07:26:22,001 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 07:26:22,002 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 07:26:22,002 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 07:26:22,002 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 07:26:22,003 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 07:26:22,004 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 07:26:22,005 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 07:26:22,009 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 07:26:22,010 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 07:26:22,010 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 07:26:22,010 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 07:26:22,010 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 07:26:22,010 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 07:26:22,011 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 07:26:22,011 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 07:26:22,011 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 07:26:22,011 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 07:26:22,012 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 07:26:22,012 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 07:26:22,012 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 07:26:22,012 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 07:26:22,013 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 07:26:22,013 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 07:26:22,013 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 07:26:22,013 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 07:26:22,013 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 07:26:22,014 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 07:26:22,014 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 07:26:22,014 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 07:26:22,014 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 07:26:22,015 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 07:26:22,015 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 07:26:22,015 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 07:26:22,015 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 07:26:22,015 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 07:26:22,016 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 07:26:22,016 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 07:26:22,016 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 07:26:22,016 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 07:26:22,016 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 07:26:22,017 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 07:26:22,017 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 07:26:22,017 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 07:26:22,017 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 07:26:22,017 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 07:26:22,018 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 07:26:22,018 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 07:26:22,018 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 07:26:22,018 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 07:26:22,019 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 07:26:22,019 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 07:26:22,019 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 07:26:22,019 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 07:26:22,020 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 07:26:22,020 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 07:26:22,020 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 07:26:22,020 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 07:26:22,021 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 07:26:22,021 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 07:26:22,021 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 07:26:22,022 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 07:26:22,022 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 07:26:22,022 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 07:26:22,022 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 07:26:22,022 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 07:26:22,023 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 07:26:22,023 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 07:26:22,031 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 07:26:22,031 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 07:26:22,032 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 07:26:22,032 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 07:26:22,032 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 07:26:22,032 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 07:26:22,033 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 07:26:22,033 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 07:26:22,035 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 07:26:22,039 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 07:26:22,039 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 07:26:22,039 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 07:26:22,041 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 07:26:22,041 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 07:26:22,041 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 07:26:22,041 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 07:26:22,045 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 07:26:22,046 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 07:26:22,046 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 07:26:22,046 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 07:26:22,046 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 07:26:22,046 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 07:26:22,047 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 07:26:22,059 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/parallel-bakery-4.wvr.c[7978,7991] [2022-12-06 07:26:22,060 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-06 07:26:22,074 INFO L208 MainTranslator]: Completed translation [2022-12-06 07:26:22,074 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 07:26:22 WrapperNode [2022-12-06 07:26:22,075 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-06 07:26:22,076 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-06 07:26:22,076 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-06 07:26:22,076 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-06 07:26:22,082 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 07:26:22" (1/1) ... [2022-12-06 07:26:22,098 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 07:26:22" (1/1) ... [2022-12-06 07:26:22,142 INFO L138 Inliner]: procedures = 23, calls = 176, calls flagged for inlining = 28, calls inlined = 28, statements flattened = 392 [2022-12-06 07:26:22,143 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-06 07:26:22,144 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-06 07:26:22,144 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-06 07:26:22,144 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-06 07:26:22,156 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 07:26:22" (1/1) ... [2022-12-06 07:26:22,156 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 07:26:22" (1/1) ... [2022-12-06 07:26:22,167 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 07:26:22" (1/1) ... [2022-12-06 07:26:22,167 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 07:26:22" (1/1) ... [2022-12-06 07:26:22,179 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 07:26:22" (1/1) ... [2022-12-06 07:26:22,182 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 07:26:22" (1/1) ... [2022-12-06 07:26:22,184 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 07:26:22" (1/1) ... [2022-12-06 07:26:22,185 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 07:26:22" (1/1) ... [2022-12-06 07:26:22,188 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-06 07:26:22,188 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-06 07:26:22,188 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-06 07:26:22,189 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-06 07:26:22,193 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 07:26:22" (1/1) ... [2022-12-06 07:26:22,198 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-06 07:26:22,208 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-06 07:26:22,220 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-06 07:26:22,247 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-06 07:26:22,264 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-06 07:26:22,264 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-12-06 07:26:22,264 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-12-06 07:26:22,264 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-12-06 07:26:22,264 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-12-06 07:26:22,264 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2022-12-06 07:26:22,265 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2022-12-06 07:26:22,265 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2022-12-06 07:26:22,265 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2022-12-06 07:26:22,265 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-06 07:26:22,265 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-06 07:26:22,265 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-06 07:26:22,265 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-12-06 07:26:22,265 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-12-06 07:26:22,266 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-06 07:26:22,266 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-06 07:26:22,266 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-06 07:26:22,266 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-06 07:26:22,267 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2022-12-06 07:26:22,375 INFO L236 CfgBuilder]: Building ICFG [2022-12-06 07:26:22,377 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-06 07:26:22,863 INFO L277 CfgBuilder]: Performing block encoding [2022-12-06 07:26:23,046 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-06 07:26:23,046 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-06 07:26:23,049 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 07:26:23 BoogieIcfgContainer [2022-12-06 07:26:23,049 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-06 07:26:23,051 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-06 07:26:23,051 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-06 07:26:23,054 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-06 07:26:23,054 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.12 07:26:21" (1/3) ... [2022-12-06 07:26:23,055 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5f513263 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.12 07:26:23, skipping insertion in model container [2022-12-06 07:26:23,055 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 07:26:22" (2/3) ... [2022-12-06 07:26:23,055 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5f513263 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.12 07:26:23, skipping insertion in model container [2022-12-06 07:26:23,055 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 07:26:23" (3/3) ... [2022-12-06 07:26:23,058 INFO L112 eAbstractionObserver]: Analyzing ICFG parallel-bakery-4.wvr.c [2022-12-06 07:26:23,076 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-06 07:26:23,076 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-12-06 07:26:23,076 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-12-06 07:26:23,191 INFO L144 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2022-12-06 07:26:23,261 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 206 places, 195 transitions, 422 flow [2022-12-06 07:26:23,340 INFO L130 PetriNetUnfolder]: 2/191 cut-off events. [2022-12-06 07:26:23,340 INFO L131 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2022-12-06 07:26:23,344 INFO L83 FinitePrefix]: Finished finitePrefix Result has 208 conditions, 191 events. 2/191 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 204 event pairs, 0 based on Foata normal form. 0/188 useless extension candidates. Maximal degree in co-relation 145. Up to 2 conditions per place. [2022-12-06 07:26:23,344 INFO L82 GeneralOperation]: Start removeDead. Operand has 206 places, 195 transitions, 422 flow [2022-12-06 07:26:23,349 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 190 places, 179 transitions, 382 flow [2022-12-06 07:26:23,350 INFO L195 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-06 07:26:23,365 INFO L167 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 190 places, 179 transitions, 382 flow [2022-12-06 07:26:23,369 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 190 places, 179 transitions, 382 flow [2022-12-06 07:26:23,412 INFO L130 PetriNetUnfolder]: 2/179 cut-off events. [2022-12-06 07:26:23,413 INFO L131 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2022-12-06 07:26:23,413 INFO L83 FinitePrefix]: Finished finitePrefix Result has 196 conditions, 179 events. 2/179 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 203 event pairs, 0 based on Foata normal form. 0/177 useless extension candidates. Maximal degree in co-relation 145. Up to 2 conditions per place. [2022-12-06 07:26:23,419 INFO L184 LiptonReduction]: Starting Lipton reduction on Petri net that has 190 places, 179 transitions, 382 flow [2022-12-06 07:26:23,419 INFO L188 LiptonReduction]: Number of co-enabled transitions 5712 [2022-12-06 07:26:30,253 INFO L203 LiptonReduction]: Total number of compositions: 110 [2022-12-06 07:26:30,274 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-06 07:26:30,281 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;@78458f6c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, Conditionality=CONDITIONAL_DISJUNCTIVE, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-06 07:26:30,282 INFO L358 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2022-12-06 07:26:30,313 INFO L130 PetriNetUnfolder]: 0/68 cut-off events. [2022-12-06 07:26:30,313 INFO L131 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2022-12-06 07:26:30,313 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 07:26:30,314 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 07:26:30,315 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2022-12-06 07:26:30,320 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 07:26:30,320 INFO L85 PathProgramCache]: Analyzing trace with hash 1008108662, now seen corresponding path program 1 times [2022-12-06 07:26:30,328 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 07:26:30,329 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [856759840] [2022-12-06 07:26:30,329 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 07:26:30,329 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 07:26:30,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 07:26:31,448 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 07:26:31,449 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 07:26:31,449 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [856759840] [2022-12-06 07:26:31,449 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [856759840] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 07:26:31,449 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 07:26:31,450 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-12-06 07:26:31,451 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1289270098] [2022-12-06 07:26:31,451 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 07:26:31,459 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-12-06 07:26:31,459 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 07:26:31,475 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-12-06 07:26:31,475 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2022-12-06 07:26:31,476 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 69 [2022-12-06 07:26:31,478 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 82 places, 69 transitions, 162 flow. Second operand has 11 states, 11 states have (on average 13.545454545454545) internal successors, (149), 11 states have internal predecessors, (149), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 07:26:31,478 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 07:26:31,478 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 69 [2022-12-06 07:26:31,478 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 07:26:47,055 INFO L130 PetriNetUnfolder]: 182045/244047 cut-off events. [2022-12-06 07:26:47,055 INFO L131 PetriNetUnfolder]: For 8108/8108 co-relation queries the response was YES. [2022-12-06 07:26:47,423 INFO L83 FinitePrefix]: Finished finitePrefix Result has 495385 conditions, 244047 events. 182045/244047 cut-off events. For 8108/8108 co-relation queries the response was YES. Maximal size of possible extension queue 3891. Compared 1574792 event pairs, 68259 based on Foata normal form. 1/243810 useless extension candidates. Maximal degree in co-relation 450360. Up to 90209 conditions per place. [2022-12-06 07:26:48,208 INFO L137 encePairwiseOnDemand]: 59/69 looper letters, 352 selfloop transitions, 25 changer transitions 34/419 dead transitions. [2022-12-06 07:26:48,208 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 95 places, 419 transitions, 1813 flow [2022-12-06 07:26:48,209 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-12-06 07:26:48,211 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2022-12-06 07:26:48,217 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 524 transitions. [2022-12-06 07:26:48,219 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.5424430641821946 [2022-12-06 07:26:48,221 INFO L175 Difference]: Start difference. First operand has 82 places, 69 transitions, 162 flow. Second operand 14 states and 524 transitions. [2022-12-06 07:26:48,221 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 95 places, 419 transitions, 1813 flow [2022-12-06 07:26:49,579 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 87 places, 419 transitions, 1711 flow, removed 0 selfloop flow, removed 8 redundant places. [2022-12-06 07:26:49,585 INFO L231 Difference]: Finished difference. Result has 92 places, 98 transitions, 301 flow [2022-12-06 07:26:49,586 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=69, PETRI_DIFFERENCE_MINUEND_FLOW=146, PETRI_DIFFERENCE_MINUEND_PLACES=74, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=69, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=61, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=301, PETRI_PLACES=92, PETRI_TRANSITIONS=98} [2022-12-06 07:26:49,590 INFO L294 CegarLoopForPetriNet]: 82 programPoint places, 10 predicate places. [2022-12-06 07:26:49,590 WARN L163 eatedLiptonReduction]: Counterexample is not a run of mAbstraction. Replaying acceptance of the word... [2022-12-06 07:26:49,591 INFO L89 Accepts]: Start accepts. Operand has 92 places, 98 transitions, 301 flow [2022-12-06 07:26:49,598 INFO L95 Accepts]: Finished accepts. [2022-12-06 07:26:49,599 INFO L195 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-06 07:26:49,599 INFO L167 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 92 places, 98 transitions, 301 flow [2022-12-06 07:26:49,602 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 90 places, 98 transitions, 301 flow [2022-12-06 07:26:49,633 INFO L130 PetriNetUnfolder]: 49/309 cut-off events. [2022-12-06 07:26:49,633 INFO L131 PetriNetUnfolder]: For 15/15 co-relation queries the response was YES. [2022-12-06 07:26:49,635 INFO L83 FinitePrefix]: Finished finitePrefix Result has 483 conditions, 309 events. 49/309 cut-off events. For 15/15 co-relation queries the response was YES. Maximal size of possible extension queue 34. Compared 1729 event pairs, 12 based on Foata normal form. 0/298 useless extension candidates. Maximal degree in co-relation 462. Up to 37 conditions per place. [2022-12-06 07:26:49,640 INFO L184 LiptonReduction]: Starting Lipton reduction on Petri net that has 90 places, 98 transitions, 301 flow [2022-12-06 07:26:49,640 INFO L188 LiptonReduction]: Number of co-enabled transitions 4128 [2022-12-06 07:26:49,671 ERROR L112 fgCompositionFactory]: Composing non-subsequent actions: [804] L78-->L82: Formula: (= v_~i1~0_1 v_~i~0_1) InVars {~i~0=v_~i~0_1} OutVars{~i~0=v_~i~0_1, ~i1~0=v_~i1~0_1} AuxVars[] AssignedVars[~i1~0] and [856] L238-->L241: Formula: (= (+ v_~i4~0_2 1) v_~i~0_8) InVars {~i4~0=v_~i4~0_2} OutVars{~i~0=v_~i~0_8, ~i4~0=v_~i4~0_2} AuxVars[] AssignedVars[~i~0] [2022-12-06 07:26:49,730 ERROR L112 fgCompositionFactory]: Composing non-subsequent actions: [838] L182-->L186: Formula: (= v_~i3~0_1 v_~i~0_5) InVars {~i~0=v_~i~0_5} OutVars{~i3~0=v_~i3~0_1, ~i~0=v_~i~0_5} AuxVars[] AssignedVars[~i3~0] and [805] L82-->L85: Formula: (= (+ v_~i1~0_2 1) v_~i~0_2) InVars {~i1~0=v_~i1~0_2} OutVars{~i~0=v_~i~0_2, ~i1~0=v_~i1~0_2} AuxVars[] AssignedVars[~i~0] [2022-12-06 07:26:49,741 ERROR L112 fgCompositionFactory]: Composing non-subsequent actions: [838] L182-->L186: Formula: (= v_~i3~0_1 v_~i~0_5) InVars {~i~0=v_~i~0_5} OutVars{~i3~0=v_~i3~0_1, ~i~0=v_~i~0_5} AuxVars[] AssignedVars[~i3~0] and [856] L238-->L241: Formula: (= (+ v_~i4~0_2 1) v_~i~0_8) InVars {~i4~0=v_~i4~0_2} OutVars{~i~0=v_~i~0_8, ~i4~0=v_~i4~0_2} AuxVars[] AssignedVars[~i~0] [2022-12-06 07:26:49,766 ERROR L112 fgCompositionFactory]: Composing non-subsequent actions: [838] L182-->L186: Formula: (= v_~i3~0_1 v_~i~0_5) InVars {~i~0=v_~i~0_5} OutVars{~i3~0=v_~i3~0_1, ~i~0=v_~i~0_5} AuxVars[] AssignedVars[~i3~0] and [822] L134-->L137: Formula: (= (+ v_~i2~0_2 1) v_~i~0_4) InVars {~i2~0=v_~i2~0_2} OutVars{~i~0=v_~i~0_4, ~i2~0=v_~i2~0_2} AuxVars[] AssignedVars[~i~0] [2022-12-06 07:26:49,809 ERROR L112 fgCompositionFactory]: Composing non-subsequent actions: [821] L130-->L134: Formula: (= v_~i2~0_1 v_~i~0_3) InVars {~i~0=v_~i~0_3} OutVars{~i~0=v_~i~0_3, ~i2~0=v_~i2~0_1} AuxVars[] AssignedVars[~i2~0] and [856] L238-->L241: Formula: (= (+ v_~i4~0_2 1) v_~i~0_8) InVars {~i4~0=v_~i4~0_2} OutVars{~i~0=v_~i~0_8, ~i4~0=v_~i4~0_2} AuxVars[] AssignedVars[~i~0] [2022-12-06 07:26:49,837 ERROR L112 fgCompositionFactory]: Composing non-subsequent actions: [821] L130-->L134: Formula: (= v_~i2~0_1 v_~i~0_3) InVars {~i~0=v_~i~0_3} OutVars{~i~0=v_~i~0_3, ~i2~0=v_~i2~0_1} AuxVars[] AssignedVars[~i2~0] and [805] L82-->L85: Formula: (= (+ v_~i1~0_2 1) v_~i~0_2) InVars {~i1~0=v_~i1~0_2} OutVars{~i~0=v_~i~0_2, ~i1~0=v_~i1~0_2} AuxVars[] AssignedVars[~i~0] [2022-12-06 07:26:49,859 ERROR L112 fgCompositionFactory]: Composing non-subsequent actions: [994] L78-->L241: Formula: (and (= (+ v_~i4~0_49 1) v_~i~0_117) (= v_~i1~0_41 v_~i~0_118)) InVars {~i4~0=v_~i4~0_49, ~i~0=v_~i~0_118} OutVars{~i~0=v_~i~0_117, ~i4~0=v_~i4~0_49, ~i1~0=v_~i1~0_41} AuxVars[] AssignedVars[~i~0, ~i1~0] and [805] L82-->L85: Formula: (= (+ v_~i1~0_2 1) v_~i~0_2) InVars {~i1~0=v_~i1~0_2} OutVars{~i~0=v_~i~0_2, ~i1~0=v_~i1~0_2} AuxVars[] AssignedVars[~i~0] [2022-12-06 07:26:49,930 INFO L203 LiptonReduction]: Total number of compositions: 5 [2022-12-06 07:26:49,932 INFO L143 eatedLiptonReduction]: Time needed for LBE in milliseconds: 342 [2022-12-06 07:26:49,933 INFO L495 AbstractCegarLoop]: Abstraction has has 87 places, 94 transitions, 300 flow [2022-12-06 07:26:49,933 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 13.545454545454545) internal successors, (149), 11 states have internal predecessors, (149), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 07:26:49,933 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 07:26:49,933 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 07:26:49,933 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-06 07:26:49,937 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2022-12-06 07:26:49,937 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 07:26:49,937 INFO L85 PathProgramCache]: Analyzing trace with hash -469471222, now seen corresponding path program 2 times [2022-12-06 07:26:49,937 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 07:26:49,938 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1047121421] [2022-12-06 07:26:49,938 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 07:26:49,938 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 07:26:50,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 07:26:51,170 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 07:26:51,170 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 07:26:51,171 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1047121421] [2022-12-06 07:26:51,171 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1047121421] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 07:26:51,171 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 07:26:51,172 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-12-06 07:26:51,172 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1714312776] [2022-12-06 07:26:51,172 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 07:26:51,173 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-12-06 07:26:51,174 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 07:26:51,174 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-12-06 07:26:51,177 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2022-12-06 07:26:51,182 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 77 [2022-12-06 07:26:51,183 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 87 places, 94 transitions, 300 flow. Second operand has 9 states, 9 states have (on average 14.777777777777779) internal successors, (133), 9 states have internal predecessors, (133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 07:26:51,183 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 07:26:51,183 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 77 [2022-12-06 07:26:51,183 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 07:27:13,969 INFO L130 PetriNetUnfolder]: 286912/399807 cut-off events. [2022-12-06 07:27:13,969 INFO L131 PetriNetUnfolder]: For 15292/15332 co-relation queries the response was YES. [2022-12-06 07:27:14,636 INFO L83 FinitePrefix]: Finished finitePrefix Result has 825734 conditions, 399807 events. 286912/399807 cut-off events. For 15292/15332 co-relation queries the response was YES. Maximal size of possible extension queue 5920. Compared 2924973 event pairs, 70247 based on Foata normal form. 3458/397688 useless extension candidates. Maximal degree in co-relation 825705. Up to 258455 conditions per place. [2022-12-06 07:27:15,891 INFO L137 encePairwiseOnDemand]: 59/77 looper letters, 320 selfloop transitions, 56 changer transitions 0/400 dead transitions. [2022-12-06 07:27:15,891 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 98 places, 400 transitions, 1758 flow [2022-12-06 07:27:15,891 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-12-06 07:27:15,891 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2022-12-06 07:27:15,893 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 474 transitions. [2022-12-06 07:27:15,894 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.512987012987013 [2022-12-06 07:27:15,894 INFO L175 Difference]: Start difference. First operand has 87 places, 94 transitions, 300 flow. Second operand 12 states and 474 transitions. [2022-12-06 07:27:15,894 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 98 places, 400 transitions, 1758 flow [2022-12-06 07:27:16,654 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 97 places, 400 transitions, 1756 flow, removed 1 selfloop flow, removed 1 redundant places. [2022-12-06 07:27:16,659 INFO L231 Difference]: Finished difference. Result has 105 places, 157 transitions, 670 flow [2022-12-06 07:27:16,659 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=77, PETRI_DIFFERENCE_MINUEND_FLOW=293, PETRI_DIFFERENCE_MINUEND_PLACES=86, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=93, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=76, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=670, PETRI_PLACES=105, PETRI_TRANSITIONS=157} [2022-12-06 07:27:16,660 INFO L294 CegarLoopForPetriNet]: 82 programPoint places, 23 predicate places. [2022-12-06 07:27:16,660 WARN L163 eatedLiptonReduction]: Counterexample is not a run of mAbstraction. Replaying acceptance of the word... [2022-12-06 07:27:16,660 INFO L89 Accepts]: Start accepts. Operand has 105 places, 157 transitions, 670 flow [2022-12-06 07:27:16,663 INFO L95 Accepts]: Finished accepts. [2022-12-06 07:27:16,663 INFO L195 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-06 07:27:16,663 INFO L167 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 105 places, 157 transitions, 670 flow [2022-12-06 07:27:16,664 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 105 places, 157 transitions, 670 flow [2022-12-06 07:27:16,904 INFO L130 PetriNetUnfolder]: 1187/4553 cut-off events. [2022-12-06 07:27:16,904 INFO L131 PetriNetUnfolder]: For 1440/1496 co-relation queries the response was YES. [2022-12-06 07:27:16,930 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8992 conditions, 4553 events. 1187/4553 cut-off events. For 1440/1496 co-relation queries the response was YES. Maximal size of possible extension queue 277. Compared 48064 event pairs, 317 based on Foata normal form. 11/4234 useless extension candidates. Maximal degree in co-relation 8544. Up to 829 conditions per place. [2022-12-06 07:27:16,974 INFO L184 LiptonReduction]: Starting Lipton reduction on Petri net that has 105 places, 157 transitions, 670 flow [2022-12-06 07:27:16,974 INFO L188 LiptonReduction]: Number of co-enabled transitions 6534 [2022-12-06 07:27:17,061 INFO L203 LiptonReduction]: Total number of compositions: 0 [2022-12-06 07:27:17,062 INFO L143 eatedLiptonReduction]: Time needed for LBE in milliseconds: 402 [2022-12-06 07:27:17,062 INFO L495 AbstractCegarLoop]: Abstraction has has 105 places, 157 transitions, 670 flow [2022-12-06 07:27:17,062 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 14.777777777777779) internal successors, (133), 9 states have internal predecessors, (133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 07:27:17,063 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 07:27:17,063 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 07:27:17,063 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-06 07:27:17,063 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2022-12-06 07:27:17,063 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 07:27:17,063 INFO L85 PathProgramCache]: Analyzing trace with hash -1339777785, now seen corresponding path program 1 times [2022-12-06 07:27:17,064 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 07:27:17,064 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [477291730] [2022-12-06 07:27:17,064 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 07:27:17,064 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 07:27:17,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 07:27:17,350 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 07:27:17,351 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 07:27:17,351 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [477291730] [2022-12-06 07:27:17,354 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [477291730] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 07:27:17,354 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 07:27:17,355 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-06 07:27:17,355 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1733349507] [2022-12-06 07:27:17,355 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 07:27:17,355 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-06 07:27:17,355 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 07:27:17,356 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-06 07:27:17,356 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-06 07:27:17,356 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 16 out of 77 [2022-12-06 07:27:17,356 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 105 places, 157 transitions, 670 flow. Second operand has 3 states, 3 states have (on average 34.666666666666664) internal successors, (104), 3 states have internal predecessors, (104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 07:27:17,356 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 07:27:17,356 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 16 of 77 [2022-12-06 07:27:17,356 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 07:27:33,676 INFO L380 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([974] L189-->thread3EXIT: Formula: (and (= |v_thread3Thread1of1ForFork0_#res#1.base_15| 0) (= v_~n3~0_189 0) (= |v_thread3Thread1of1ForFork0_#res#1.offset_15| 0)) InVars {} OutVars{thread3Thread1of1ForFork0_#res#1.offset=|v_thread3Thread1of1ForFork0_#res#1.offset_15|, ~n3~0=v_~n3~0_189, thread3Thread1of1ForFork0_#res#1.base=|v_thread3Thread1of1ForFork0_#res#1.base_15|} AuxVars[] AssignedVars[thread3Thread1of1ForFork0_#res#1.offset, ~n3~0, thread3Thread1of1ForFork0_#res#1.base][128], [Black: 253#(and (<= 1 ~n1~0) (<= (+ ~n1~0 1) ~n2~0)), Black: 248#(and (<= ~n3~0 ~n2~0) (<= 0 ~n2~0) (<= ~n4~0 ~n2~0) (<= ~n2~0 ~n1~0)), Black: 247#(and (<= ~n3~0 ~n4~0) (<= ~n1~0 ~n4~0) (<= 0 ~n2~0) (<= ~n4~0 ~n2~0) (<= ~n2~0 ~n1~0) (<= ~n4~0 ~n3~0)), Black: 251#(and (<= 1 ~n1~0) (<= (+ ~n4~0 1) ~n2~0) (<= ~n1~0 ~n2~0)), Black: 255#(and (<= 1 ~n1~0) (<= ~n3~0 ~n2~0) (<= (+ ~n4~0 1) ~n2~0) (<= ~n1~0 ~n2~0) (<= ~n2~0 ~n1~0)), Black: 250#(and (<= 1 ~n1~0) (= ~n2~0 ~n1~0) (<= (+ ~n4~0 1) ~n1~0) (<= (+ ~n3~0 1) ~n1~0)), Black: 257#(and (<= 1 ~n1~0) (<= (+ ~n1~0 1) ~n2~0) (<= (+ ~n4~0 1) ~n2~0)), Black: 249#(and (<= ~n3~0 ~n2~0) (<= 0 ~n2~0) (<= ~n4~0 ~n2~0) (<= (+ ~n2~0 1) ~n1~0)), 209#true, Black: 211#(and (<= ~i~0 0) (<= 0 ~i~0)), Black: 227#(and (<= ~i~0 2) (<= 0 ~i3~0) (<= ~i2~0 1) (<= 1 ~i2~0) (<= ~i3~0 0) (<= 2 ~i~0)), 183#L274-2true, Black: 233#(and (<= 2 ~i1~0) (<= 0 ~i3~0) (<= ~i2~0 1) (<= 3 ~i~0) (<= 1 ~i2~0) (<= ~i1~0 2) (<= ~i~0 3) (<= ~i3~0 0)), Black: 223#(and (<= 1 ~i~0) (<= 0 ~i3~0) (<= ~i~0 1) (<= ~i3~0 0)), 194#L209true, 268#true, 85#thread3EXITtrue, 35#thread2EXITtrue, 245#true]) [2022-12-06 07:27:33,677 INFO L382 tUnfolder$Statistics]: this new event has 52 ancestors and is not cut-off event [2022-12-06 07:27:33,677 INFO L385 tUnfolder$Statistics]: existing Event has 52 ancestors and is not cut-off event [2022-12-06 07:27:33,677 INFO L385 tUnfolder$Statistics]: existing Event has 52 ancestors and is not cut-off event [2022-12-06 07:27:33,677 INFO L385 tUnfolder$Statistics]: existing Event has 52 ancestors and is not cut-off event [2022-12-06 07:27:33,678 INFO L380 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([974] L189-->thread3EXIT: Formula: (and (= |v_thread3Thread1of1ForFork0_#res#1.base_15| 0) (= v_~n3~0_189 0) (= |v_thread3Thread1of1ForFork0_#res#1.offset_15| 0)) InVars {} OutVars{thread3Thread1of1ForFork0_#res#1.offset=|v_thread3Thread1of1ForFork0_#res#1.offset_15|, ~n3~0=v_~n3~0_189, thread3Thread1of1ForFork0_#res#1.base=|v_thread3Thread1of1ForFork0_#res#1.base_15|} AuxVars[] AssignedVars[thread3Thread1of1ForFork0_#res#1.offset, ~n3~0, thread3Thread1of1ForFork0_#res#1.base][128], [Black: 253#(and (<= 1 ~n1~0) (<= (+ ~n1~0 1) ~n2~0)), Black: 248#(and (<= ~n3~0 ~n2~0) (<= 0 ~n2~0) (<= ~n4~0 ~n2~0) (<= ~n2~0 ~n1~0)), Black: 247#(and (<= ~n3~0 ~n4~0) (<= ~n1~0 ~n4~0) (<= 0 ~n2~0) (<= ~n4~0 ~n2~0) (<= ~n2~0 ~n1~0) (<= ~n4~0 ~n3~0)), Black: 251#(and (<= 1 ~n1~0) (<= (+ ~n4~0 1) ~n2~0) (<= ~n1~0 ~n2~0)), Black: 255#(and (<= 1 ~n1~0) (<= ~n3~0 ~n2~0) (<= (+ ~n4~0 1) ~n2~0) (<= ~n1~0 ~n2~0) (<= ~n2~0 ~n1~0)), Black: 250#(and (<= 1 ~n1~0) (= ~n2~0 ~n1~0) (<= (+ ~n4~0 1) ~n1~0) (<= (+ ~n3~0 1) ~n1~0)), Black: 257#(and (<= 1 ~n1~0) (<= (+ ~n1~0 1) ~n2~0) (<= (+ ~n4~0 1) ~n2~0)), Black: 249#(and (<= ~n3~0 ~n2~0) (<= 0 ~n2~0) (<= ~n4~0 ~n2~0) (<= (+ ~n2~0 1) ~n1~0)), 209#true, Black: 211#(and (<= ~i~0 0) (<= 0 ~i~0)), Black: 227#(and (<= ~i~0 2) (<= 0 ~i3~0) (<= ~i2~0 1) (<= 1 ~i2~0) (<= ~i3~0 0) (<= 2 ~i~0)), Black: 233#(and (<= 2 ~i1~0) (<= 0 ~i3~0) (<= ~i2~0 1) (<= 3 ~i~0) (<= 1 ~i2~0) (<= ~i1~0 2) (<= ~i~0 3) (<= ~i3~0 0)), 268#true, 185#L275-1true, 194#L209true, Black: 223#(and (<= 1 ~i~0) (<= 0 ~i3~0) (<= ~i~0 1) (<= ~i3~0 0)), 85#thread3EXITtrue, 35#thread2EXITtrue, 245#true]) [2022-12-06 07:27:33,678 INFO L382 tUnfolder$Statistics]: this new event has 53 ancestors and is cut-off event [2022-12-06 07:27:33,678 INFO L385 tUnfolder$Statistics]: existing Event has 53 ancestors and is cut-off event [2022-12-06 07:27:33,678 INFO L385 tUnfolder$Statistics]: existing Event has 53 ancestors and is cut-off event [2022-12-06 07:27:33,678 INFO L385 tUnfolder$Statistics]: existing Event has 53 ancestors and is cut-off event [2022-12-06 07:27:33,778 INFO L380 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([974] L189-->thread3EXIT: Formula: (and (= |v_thread3Thread1of1ForFork0_#res#1.base_15| 0) (= v_~n3~0_189 0) (= |v_thread3Thread1of1ForFork0_#res#1.offset_15| 0)) InVars {} OutVars{thread3Thread1of1ForFork0_#res#1.offset=|v_thread3Thread1of1ForFork0_#res#1.offset_15|, ~n3~0=v_~n3~0_189, thread3Thread1of1ForFork0_#res#1.base=|v_thread3Thread1of1ForFork0_#res#1.base_15|} AuxVars[] AssignedVars[thread3Thread1of1ForFork0_#res#1.offset, ~n3~0, thread3Thread1of1ForFork0_#res#1.base][128], [Black: 253#(and (<= 1 ~n1~0) (<= (+ ~n1~0 1) ~n2~0)), Black: 248#(and (<= ~n3~0 ~n2~0) (<= 0 ~n2~0) (<= ~n4~0 ~n2~0) (<= ~n2~0 ~n1~0)), Black: 247#(and (<= ~n3~0 ~n4~0) (<= ~n1~0 ~n4~0) (<= 0 ~n2~0) (<= ~n4~0 ~n2~0) (<= ~n2~0 ~n1~0) (<= ~n4~0 ~n3~0)), Black: 251#(and (<= 1 ~n1~0) (<= (+ ~n4~0 1) ~n2~0) (<= ~n1~0 ~n2~0)), Black: 255#(and (<= 1 ~n1~0) (<= ~n3~0 ~n2~0) (<= (+ ~n4~0 1) ~n2~0) (<= ~n1~0 ~n2~0) (<= ~n2~0 ~n1~0)), Black: 250#(and (<= 1 ~n1~0) (= ~n2~0 ~n1~0) (<= (+ ~n4~0 1) ~n1~0) (<= (+ ~n3~0 1) ~n1~0)), Black: 257#(and (<= 1 ~n1~0) (<= (+ ~n1~0 1) ~n2~0) (<= (+ ~n4~0 1) ~n2~0)), Black: 249#(and (<= ~n3~0 ~n2~0) (<= 0 ~n2~0) (<= ~n4~0 ~n2~0) (<= (+ ~n2~0 1) ~n1~0)), 209#true, Black: 211#(and (<= ~i~0 0) (<= 0 ~i~0)), Black: 227#(and (<= ~i~0 2) (<= 0 ~i3~0) (<= ~i2~0 1) (<= 1 ~i2~0) (<= ~i3~0 0) (<= 2 ~i~0)), 171#L275-2true, Black: 233#(and (<= 2 ~i1~0) (<= 0 ~i3~0) (<= ~i2~0 1) (<= 3 ~i~0) (<= 1 ~i2~0) (<= ~i1~0 2) (<= ~i~0 3) (<= ~i3~0 0)), 194#L209true, Black: 223#(and (<= 1 ~i~0) (<= 0 ~i3~0) (<= ~i~0 1) (<= ~i3~0 0)), 268#true, 85#thread3EXITtrue, 245#true]) [2022-12-06 07:27:33,779 INFO L382 tUnfolder$Statistics]: this new event has 54 ancestors and is cut-off event [2022-12-06 07:27:33,779 INFO L385 tUnfolder$Statistics]: existing Event has 54 ancestors and is cut-off event [2022-12-06 07:27:33,779 INFO L385 tUnfolder$Statistics]: existing Event has 54 ancestors and is cut-off event [2022-12-06 07:27:33,779 INFO L385 tUnfolder$Statistics]: existing Event has 54 ancestors and is cut-off event [2022-12-06 07:27:33,851 INFO L380 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([974] L189-->thread3EXIT: Formula: (and (= |v_thread3Thread1of1ForFork0_#res#1.base_15| 0) (= v_~n3~0_189 0) (= |v_thread3Thread1of1ForFork0_#res#1.offset_15| 0)) InVars {} OutVars{thread3Thread1of1ForFork0_#res#1.offset=|v_thread3Thread1of1ForFork0_#res#1.offset_15|, ~n3~0=v_~n3~0_189, thread3Thread1of1ForFork0_#res#1.base=|v_thread3Thread1of1ForFork0_#res#1.base_15|} AuxVars[] AssignedVars[thread3Thread1of1ForFork0_#res#1.offset, ~n3~0, thread3Thread1of1ForFork0_#res#1.base][128], [Black: 253#(and (<= 1 ~n1~0) (<= (+ ~n1~0 1) ~n2~0)), Black: 248#(and (<= ~n3~0 ~n2~0) (<= 0 ~n2~0) (<= ~n4~0 ~n2~0) (<= ~n2~0 ~n1~0)), Black: 247#(and (<= ~n3~0 ~n4~0) (<= ~n1~0 ~n4~0) (<= 0 ~n2~0) (<= ~n4~0 ~n2~0) (<= ~n2~0 ~n1~0) (<= ~n4~0 ~n3~0)), Black: 251#(and (<= 1 ~n1~0) (<= (+ ~n4~0 1) ~n2~0) (<= ~n1~0 ~n2~0)), 104#L276-1true, Black: 255#(and (<= 1 ~n1~0) (<= ~n3~0 ~n2~0) (<= (+ ~n4~0 1) ~n2~0) (<= ~n1~0 ~n2~0) (<= ~n2~0 ~n1~0)), Black: 250#(and (<= 1 ~n1~0) (= ~n2~0 ~n1~0) (<= (+ ~n4~0 1) ~n1~0) (<= (+ ~n3~0 1) ~n1~0)), Black: 257#(and (<= 1 ~n1~0) (<= (+ ~n1~0 1) ~n2~0) (<= (+ ~n4~0 1) ~n2~0)), Black: 249#(and (<= ~n3~0 ~n2~0) (<= 0 ~n2~0) (<= ~n4~0 ~n2~0) (<= (+ ~n2~0 1) ~n1~0)), 209#true, Black: 211#(and (<= ~i~0 0) (<= 0 ~i~0)), Black: 227#(and (<= ~i~0 2) (<= 0 ~i3~0) (<= ~i2~0 1) (<= 1 ~i2~0) (<= ~i3~0 0) (<= 2 ~i~0)), Black: 233#(and (<= 2 ~i1~0) (<= 0 ~i3~0) (<= ~i2~0 1) (<= 3 ~i~0) (<= 1 ~i2~0) (<= ~i1~0 2) (<= ~i~0 3) (<= ~i3~0 0)), 268#true, 194#L209true, Black: 223#(and (<= 1 ~i~0) (<= 0 ~i3~0) (<= ~i~0 1) (<= ~i3~0 0)), 85#thread3EXITtrue, 245#true]) [2022-12-06 07:27:33,851 INFO L382 tUnfolder$Statistics]: this new event has 55 ancestors and is cut-off event [2022-12-06 07:27:33,851 INFO L385 tUnfolder$Statistics]: existing Event has 55 ancestors and is cut-off event [2022-12-06 07:27:33,851 INFO L385 tUnfolder$Statistics]: existing Event has 55 ancestors and is cut-off event [2022-12-06 07:27:33,851 INFO L385 tUnfolder$Statistics]: existing Event has 55 ancestors and is cut-off event [2022-12-06 07:27:34,059 INFO L130 PetriNetUnfolder]: 142409/213029 cut-off events. [2022-12-06 07:27:34,059 INFO L131 PetriNetUnfolder]: For 104999/106927 co-relation queries the response was YES. [2022-12-06 07:27:34,739 INFO L83 FinitePrefix]: Finished finitePrefix Result has 524471 conditions, 213029 events. 142409/213029 cut-off events. For 104999/106927 co-relation queries the response was YES. Maximal size of possible extension queue 4121. Compared 1741023 event pairs, 111692 based on Foata normal form. 2428/208644 useless extension candidates. Maximal degree in co-relation 453441. Up to 172093 conditions per place. [2022-12-06 07:27:35,569 INFO L137 encePairwiseOnDemand]: 72/77 looper letters, 147 selfloop transitions, 10 changer transitions 0/197 dead transitions. [2022-12-06 07:27:35,570 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 107 places, 197 transitions, 1121 flow [2022-12-06 07:27:35,570 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-06 07:27:35,570 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-06 07:27:35,570 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 146 transitions. [2022-12-06 07:27:35,571 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.6320346320346321 [2022-12-06 07:27:35,571 INFO L175 Difference]: Start difference. First operand has 105 places, 157 transitions, 670 flow. Second operand 3 states and 146 transitions. [2022-12-06 07:27:35,571 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 107 places, 197 transitions, 1121 flow [2022-12-06 07:27:36,188 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 107 places, 197 transitions, 1121 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-12-06 07:27:36,190 INFO L231 Difference]: Finished difference. Result has 108 places, 155 transitions, 694 flow [2022-12-06 07:27:36,191 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=77, PETRI_DIFFERENCE_MINUEND_FLOW=658, PETRI_DIFFERENCE_MINUEND_PLACES=105, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=155, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=145, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=694, PETRI_PLACES=108, PETRI_TRANSITIONS=155} [2022-12-06 07:27:36,191 INFO L294 CegarLoopForPetriNet]: 82 programPoint places, 26 predicate places. [2022-12-06 07:27:36,192 WARN L163 eatedLiptonReduction]: Counterexample is not a run of mAbstraction. Replaying acceptance of the word... [2022-12-06 07:27:36,192 INFO L89 Accepts]: Start accepts. Operand has 108 places, 155 transitions, 694 flow [2022-12-06 07:27:36,195 INFO L95 Accepts]: Finished accepts. [2022-12-06 07:27:36,195 INFO L195 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-06 07:27:36,195 INFO L167 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 108 places, 155 transitions, 694 flow [2022-12-06 07:27:36,196 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 108 places, 155 transitions, 694 flow [2022-12-06 07:27:36,555 INFO L130 PetriNetUnfolder]: 1479/5460 cut-off events. [2022-12-06 07:27:36,556 INFO L131 PetriNetUnfolder]: For 2198/2250 co-relation queries the response was YES. [2022-12-06 07:27:36,586 INFO L83 FinitePrefix]: Finished finitePrefix Result has 11411 conditions, 5460 events. 1479/5460 cut-off events. For 2198/2250 co-relation queries the response was YES. Maximal size of possible extension queue 310. Compared 58772 event pairs, 539 based on Foata normal form. 20/5051 useless extension candidates. Maximal degree in co-relation 10873. Up to 845 conditions per place. [2022-12-06 07:27:36,640 INFO L184 LiptonReduction]: Starting Lipton reduction on Petri net that has 108 places, 155 transitions, 694 flow [2022-12-06 07:27:36,640 INFO L188 LiptonReduction]: Number of co-enabled transitions 5736 [2022-12-06 07:27:36,687 ERROR L112 fgCompositionFactory]: Composing non-subsequent actions: [960] L53-->L59: Formula: (and (= v_~e1~0_82 0) (= v_~n1~0_187 (+ v_~n1~0_188 1))) InVars {~n1~0=v_~n1~0_188} OutVars{thread1Thread1of1ForFork1_#t~post1#1=|v_thread1Thread1of1ForFork1_#t~post1#1_17|, ~n1~0=v_~n1~0_187, ~e1~0=v_~e1~0_82} AuxVars[] AssignedVars[thread1Thread1of1ForFork1_#t~post1#1, ~n1~0, ~e1~0] and [912] L105-->L111: Formula: (and (= v_~e2~0_52 0) (= v_~n2~0_113 (+ v_~n2~0_114 1))) InVars {~n2~0=v_~n2~0_114} OutVars{~n2~0=v_~n2~0_113, thread2Thread1of1ForFork3_#t~post2#1=|v_thread2Thread1of1ForFork3_#t~post2#1_9|, ~e2~0=v_~e2~0_52} AuxVars[] AssignedVars[~n2~0, thread2Thread1of1ForFork3_#t~post2#1, ~e2~0] [2022-12-06 07:27:36,786 INFO L203 LiptonReduction]: Total number of compositions: 1 [2022-12-06 07:27:36,788 INFO L143 eatedLiptonReduction]: Time needed for LBE in milliseconds: 596 [2022-12-06 07:27:36,788 INFO L495 AbstractCegarLoop]: Abstraction has has 108 places, 155 transitions, 698 flow [2022-12-06 07:27:36,788 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 34.666666666666664) internal successors, (104), 3 states have internal predecessors, (104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 07:27:36,788 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 07:27:36,789 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 07:27:36,789 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-06 07:27:36,789 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2022-12-06 07:27:36,789 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 07:27:36,789 INFO L85 PathProgramCache]: Analyzing trace with hash 1313083165, now seen corresponding path program 2 times [2022-12-06 07:27:36,790 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 07:27:36,790 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [97507091] [2022-12-06 07:27:36,790 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 07:27:36,790 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 07:27:36,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 07:27:37,036 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 07:27:37,039 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 07:27:37,040 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [97507091] [2022-12-06 07:27:37,040 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [97507091] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 07:27:37,041 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 07:27:37,041 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-06 07:27:37,041 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1884138738] [2022-12-06 07:27:37,041 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 07:27:37,042 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-06 07:27:37,042 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 07:27:37,043 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-06 07:27:37,043 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-06 07:27:37,044 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 16 out of 78 [2022-12-06 07:27:37,045 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 108 places, 155 transitions, 698 flow. Second operand has 3 states, 3 states have (on average 34.666666666666664) internal successors, (104), 3 states have internal predecessors, (104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 07:27:37,045 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 07:27:37,045 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 16 of 78 [2022-12-06 07:27:37,045 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 07:27:50,896 INFO L130 PetriNetUnfolder]: 123346/183977 cut-off events. [2022-12-06 07:27:50,896 INFO L131 PetriNetUnfolder]: For 137551/138961 co-relation queries the response was YES. [2022-12-06 07:27:51,530 INFO L83 FinitePrefix]: Finished finitePrefix Result has 492031 conditions, 183977 events. 123346/183977 cut-off events. For 137551/138961 co-relation queries the response was YES. Maximal size of possible extension queue 3441. Compared 1477996 event pairs, 92863 based on Foata normal form. 1416/180526 useless extension candidates. Maximal degree in co-relation 421271. Up to 143796 conditions per place. [2022-12-06 07:27:52,231 INFO L137 encePairwiseOnDemand]: 73/78 looper letters, 157 selfloop transitions, 19 changer transitions 1/217 dead transitions. [2022-12-06 07:27:52,231 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 110 places, 217 transitions, 1352 flow [2022-12-06 07:27:52,232 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-06 07:27:52,232 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-06 07:27:52,233 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 151 transitions. [2022-12-06 07:27:52,233 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.6452991452991453 [2022-12-06 07:27:52,233 INFO L175 Difference]: Start difference. First operand has 108 places, 155 transitions, 698 flow. Second operand 3 states and 151 transitions. [2022-12-06 07:27:52,233 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 110 places, 217 transitions, 1352 flow [2022-12-06 07:27:53,277 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 108 places, 217 transitions, 1312 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-12-06 07:27:53,281 INFO L231 Difference]: Finished difference. Result has 109 places, 155 transitions, 741 flow [2022-12-06 07:27:53,281 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=78, PETRI_DIFFERENCE_MINUEND_FLOW=678, PETRI_DIFFERENCE_MINUEND_PLACES=106, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=155, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=19, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=136, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=741, PETRI_PLACES=109, PETRI_TRANSITIONS=155} [2022-12-06 07:27:53,282 INFO L294 CegarLoopForPetriNet]: 82 programPoint places, 27 predicate places. [2022-12-06 07:27:53,282 WARN L163 eatedLiptonReduction]: Counterexample is not a run of mAbstraction. Replaying acceptance of the word... [2022-12-06 07:27:53,282 INFO L89 Accepts]: Start accepts. Operand has 109 places, 155 transitions, 741 flow [2022-12-06 07:27:53,285 INFO L95 Accepts]: Finished accepts. [2022-12-06 07:27:53,285 INFO L195 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-06 07:27:53,285 INFO L167 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 109 places, 155 transitions, 741 flow [2022-12-06 07:27:53,286 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 109 places, 155 transitions, 741 flow [2022-12-06 07:27:53,751 INFO L130 PetriNetUnfolder]: 1814/6204 cut-off events. [2022-12-06 07:27:53,751 INFO L131 PetriNetUnfolder]: For 3195/3225 co-relation queries the response was YES. [2022-12-06 07:27:53,773 INFO L83 FinitePrefix]: Finished finitePrefix Result has 14126 conditions, 6204 events. 1814/6204 cut-off events. For 3195/3225 co-relation queries the response was YES. Maximal size of possible extension queue 297. Compared 66108 event pairs, 748 based on Foata normal form. 20/5681 useless extension candidates. Maximal degree in co-relation 13692. Up to 1077 conditions per place. [2022-12-06 07:27:53,819 INFO L184 LiptonReduction]: Starting Lipton reduction on Petri net that has 109 places, 155 transitions, 741 flow [2022-12-06 07:27:53,819 INFO L188 LiptonReduction]: Number of co-enabled transitions 5532 [2022-12-06 07:27:53,865 INFO L203 LiptonReduction]: Total number of compositions: 0 [2022-12-06 07:27:53,866 INFO L143 eatedLiptonReduction]: Time needed for LBE in milliseconds: 584 [2022-12-06 07:27:53,866 INFO L495 AbstractCegarLoop]: Abstraction has has 109 places, 155 transitions, 741 flow [2022-12-06 07:27:53,866 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 34.666666666666664) internal successors, (104), 3 states have internal predecessors, (104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 07:27:53,866 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 07:27:53,867 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 07:27:53,867 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-12-06 07:27:53,867 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2022-12-06 07:27:53,867 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 07:27:53,867 INFO L85 PathProgramCache]: Analyzing trace with hash -586171520, now seen corresponding path program 1 times [2022-12-06 07:27:53,867 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 07:27:53,867 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [718762572] [2022-12-06 07:27:53,868 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 07:27:53,868 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 07:27:53,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 07:27:54,040 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 07:27:54,041 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 07:27:54,041 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [718762572] [2022-12-06 07:27:54,041 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [718762572] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 07:27:54,041 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 07:27:54,041 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-06 07:27:54,042 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1854528876] [2022-12-06 07:27:54,042 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 07:27:54,043 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-06 07:27:54,043 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 07:27:54,043 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-06 07:27:54,043 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-06 07:27:54,044 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 16 out of 78 [2022-12-06 07:27:54,044 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 109 places, 155 transitions, 741 flow. Second operand has 3 states, 3 states have (on average 34.333333333333336) internal successors, (103), 3 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 07:27:54,044 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 07:27:54,044 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 16 of 78 [2022-12-06 07:27:54,044 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 07:28:09,472 INFO L130 PetriNetUnfolder]: 123005/185349 cut-off events. [2022-12-06 07:28:09,472 INFO L131 PetriNetUnfolder]: For 142698/145308 co-relation queries the response was YES. [2022-12-06 07:28:10,132 INFO L83 FinitePrefix]: Finished finitePrefix Result has 500553 conditions, 185349 events. 123005/185349 cut-off events. For 142698/145308 co-relation queries the response was YES. Maximal size of possible extension queue 3516. Compared 1518126 event pairs, 93707 based on Foata normal form. 1611/179607 useless extension candidates. Maximal degree in co-relation 430308. Up to 150634 conditions per place. [2022-12-06 07:28:10,830 INFO L137 encePairwiseOnDemand]: 73/78 looper letters, 164 selfloop transitions, 15 changer transitions 0/219 dead transitions. [2022-12-06 07:28:10,830 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 111 places, 219 transitions, 1420 flow [2022-12-06 07:28:10,830 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-06 07:28:10,830 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-06 07:28:10,831 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 145 transitions. [2022-12-06 07:28:10,831 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.6196581196581197 [2022-12-06 07:28:10,831 INFO L175 Difference]: Start difference. First operand has 109 places, 155 transitions, 741 flow. Second operand 3 states and 145 transitions. [2022-12-06 07:28:10,831 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 111 places, 219 transitions, 1420 flow [2022-12-06 07:28:11,369 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 109 places, 219 transitions, 1350 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-12-06 07:28:11,372 INFO L231 Difference]: Finished difference. Result has 110 places, 155 transitions, 754 flow [2022-12-06 07:28:11,372 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=78, PETRI_DIFFERENCE_MINUEND_FLOW=703, PETRI_DIFFERENCE_MINUEND_PLACES=107, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=155, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=15, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=140, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=754, PETRI_PLACES=110, PETRI_TRANSITIONS=155} [2022-12-06 07:28:11,373 INFO L294 CegarLoopForPetriNet]: 82 programPoint places, 28 predicate places. [2022-12-06 07:28:11,373 WARN L163 eatedLiptonReduction]: Counterexample is not a run of mAbstraction. Replaying acceptance of the word... [2022-12-06 07:28:11,373 INFO L89 Accepts]: Start accepts. Operand has 110 places, 155 transitions, 754 flow [2022-12-06 07:28:11,375 INFO L95 Accepts]: Finished accepts. [2022-12-06 07:28:11,375 INFO L195 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-06 07:28:11,375 INFO L167 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 110 places, 155 transitions, 754 flow [2022-12-06 07:28:11,376 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 110 places, 155 transitions, 754 flow [2022-12-06 07:28:11,858 INFO L130 PetriNetUnfolder]: 2148/7704 cut-off events. [2022-12-06 07:28:11,858 INFO L131 PetriNetUnfolder]: For 4727/4785 co-relation queries the response was YES. [2022-12-06 07:28:11,886 INFO L83 FinitePrefix]: Finished finitePrefix Result has 17901 conditions, 7704 events. 2148/7704 cut-off events. For 4727/4785 co-relation queries the response was YES. Maximal size of possible extension queue 331. Compared 86588 event pairs, 957 based on Foata normal form. 20/7016 useless extension candidates. Maximal degree in co-relation 17367. Up to 1292 conditions per place. [2022-12-06 07:28:11,943 INFO L184 LiptonReduction]: Starting Lipton reduction on Petri net that has 110 places, 155 transitions, 754 flow [2022-12-06 07:28:11,943 INFO L188 LiptonReduction]: Number of co-enabled transitions 5402 [2022-12-06 07:28:11,993 INFO L203 LiptonReduction]: Total number of compositions: 0 [2022-12-06 07:28:11,994 INFO L143 eatedLiptonReduction]: Time needed for LBE in milliseconds: 621 [2022-12-06 07:28:11,994 INFO L495 AbstractCegarLoop]: Abstraction has has 110 places, 155 transitions, 754 flow [2022-12-06 07:28:11,994 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 34.333333333333336) internal successors, (103), 3 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 07:28:11,994 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 07:28:11,995 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 07:28:11,995 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-12-06 07:28:11,995 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2022-12-06 07:28:11,995 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 07:28:11,995 INFO L85 PathProgramCache]: Analyzing trace with hash -2032583738, now seen corresponding path program 2 times [2022-12-06 07:28:11,995 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 07:28:11,995 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [762170323] [2022-12-06 07:28:11,995 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 07:28:11,996 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 07:28:12,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 07:28:13,141 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 07:28:13,141 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 07:28:13,142 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [762170323] [2022-12-06 07:28:13,142 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [762170323] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 07:28:13,142 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 07:28:13,142 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-12-06 07:28:13,142 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1833652334] [2022-12-06 07:28:13,142 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 07:28:13,142 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-12-06 07:28:13,143 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 07:28:13,143 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-12-06 07:28:13,143 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2022-12-06 07:28:13,143 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 78 [2022-12-06 07:28:13,144 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 110 places, 155 transitions, 754 flow. Second operand has 11 states, 11 states have (on average 13.727272727272727) internal successors, (151), 11 states have internal predecessors, (151), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 07:28:13,144 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 07:28:13,144 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 78 [2022-12-06 07:28:13,144 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand