/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-RepeatedSemanticLbe.epf --traceabstraction.use.on-demand.petri.net.difference true -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/weaver/parallel-barrier-loop.wvr.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.repeated-lipton-8d0d62b [2022-12-06 02:11:43,930 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-06 02:11:43,932 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-06 02:11:43,968 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-06 02:11:43,970 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-06 02:11:43,973 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-06 02:11:43,978 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-06 02:11:43,981 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-06 02:11:43,985 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-06 02:11:43,990 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-06 02:11:43,991 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-06 02:11:43,992 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-06 02:11:43,993 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-06 02:11:43,995 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-06 02:11:43,996 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-06 02:11:43,998 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-06 02:11:43,999 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-06 02:11:44,000 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-06 02:11:44,001 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-06 02:11:44,002 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-06 02:11:44,003 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-06 02:11:44,005 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-06 02:11:44,006 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-06 02:11:44,007 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-06 02:11:44,009 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-06 02:11:44,010 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-06 02:11:44,010 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-06 02:11:44,010 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-06 02:11:44,011 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-06 02:11:44,011 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-06 02:11:44,012 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-06 02:11:44,012 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-06 02:11:44,013 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-06 02:11:44,013 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-06 02:11:44,014 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-06 02:11:44,014 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-06 02:11:44,015 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-06 02:11:44,015 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-06 02:11:44,015 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-06 02:11:44,016 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-06 02:11:44,016 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-06 02:11:44,027 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-RepeatedSemanticLbe.epf [2022-12-06 02:11:44,067 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-06 02:11:44,067 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-06 02:11:44,069 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-06 02:11:44,069 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-06 02:11:44,069 INFO L138 SettingsManager]: * Use SBE=true [2022-12-06 02:11:44,070 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-06 02:11:44,070 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-06 02:11:44,070 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-06 02:11:44,070 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-06 02:11:44,070 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-06 02:11:44,071 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-06 02:11:44,071 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-06 02:11:44,072 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-06 02:11:44,072 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-06 02:11:44,072 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-06 02:11:44,072 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-06 02:11:44,072 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-06 02:11:44,072 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-06 02:11:44,072 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-06 02:11:44,073 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-12-06 02:11:44,073 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-06 02:11:44,073 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-06 02:11:44,073 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-06 02:11:44,073 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-06 02:11:44,073 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-06 02:11:44,073 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-06 02:11:44,074 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-06 02:11:44,074 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=REPEATED_LIPTON_PN [2022-12-06 02:11:44,074 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use on-demand Petri net difference -> true [2022-12-06 02:11:44,377 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-06 02:11:44,395 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-06 02:11:44,397 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-06 02:11:44,398 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-06 02:11:44,398 INFO L275 PluginConnector]: CDTParser initialized [2022-12-06 02:11:44,400 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/parallel-barrier-loop.wvr.c [2022-12-06 02:11:45,532 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-06 02:11:45,741 INFO L351 CDTParser]: Found 1 translation units. [2022-12-06 02:11:45,741 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/parallel-barrier-loop.wvr.c [2022-12-06 02:11:45,754 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/186475484/de3b7cc38cf54dd88963e87dad4c75b3/FLAG6ebe60e43 [2022-12-06 02:11:45,770 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/186475484/de3b7cc38cf54dd88963e87dad4c75b3 [2022-12-06 02:11:45,773 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-06 02:11:45,774 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-12-06 02:11:45,778 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-06 02:11:45,778 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-06 02:11:45,780 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-06 02:11:45,781 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 02:11:45" (1/1) ... [2022-12-06 02:11:45,782 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2a62d23 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 02:11:45, skipping insertion in model container [2022-12-06 02:11:45,782 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 02:11:45" (1/1) ... [2022-12-06 02:11:45,788 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-06 02:11:45,808 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-06 02:11:45,926 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 02:11:45,926 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 02:11:45,927 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 02:11:45,927 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 02:11:45,928 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 02:11:45,928 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 02:11:45,928 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 02:11:45,929 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 02:11:45,929 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 02:11:45,929 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 02:11:45,930 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 02:11:45,930 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 02:11:45,930 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 02:11:45,931 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 02:11:45,931 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 02:11:45,932 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 02:11:45,935 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 02:11:45,935 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 02:11:45,935 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 02:11:45,936 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 02:11:45,936 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 02:11:45,936 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 02:11:45,937 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 02:11:45,937 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 02:11:45,937 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 02:11:45,937 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 02:11:45,938 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 02:11:45,938 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 02:11:45,938 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 02:11:45,939 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 02:11:45,939 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 02:11:45,939 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 02:11:45,941 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 02:11:45,941 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 02:11:45,945 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 02:11:45,946 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 02:11:45,946 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 02:11:45,946 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 02:11:45,946 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 02:11:45,947 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 02:11:45,947 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 02:11:45,947 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 02:11:45,947 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 02:11:45,948 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 02:11:45,948 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 02:11:45,948 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 02:11:45,949 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 02:11:45,949 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 02:11:45,949 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 02:11:45,949 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 02:11:45,950 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 02:11:45,951 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 02:11:45,951 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 02:11:45,951 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 02:11:45,951 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 02:11:45,952 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 02:11:45,952 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 02:11:45,952 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 02:11:45,952 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 02:11:45,953 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 02:11:45,953 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 02:11:45,953 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 02:11:45,953 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 02:11:45,954 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 02:11:45,954 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 02:11:45,954 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 02:11:45,955 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 02:11:45,956 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 02:11:45,962 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-barrier-loop.wvr.c[5938,5951] [2022-12-06 02:11:45,966 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-06 02:11:45,979 INFO L203 MainTranslator]: Completed pre-run [2022-12-06 02:11:45,995 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 02:11:45,996 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 02:11:45,996 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 02:11:45,997 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 02:11:45,997 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 02:11:45,997 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 02:11:45,998 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 02:11:45,999 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 02:11:46,000 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 02:11:46,000 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 02:11:46,001 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 02:11:46,001 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 02:11:46,001 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 02:11:46,002 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 02:11:46,002 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 02:11:46,003 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 02:11:46,010 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 02:11:46,010 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 02:11:46,011 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 02:11:46,011 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 02:11:46,011 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 02:11:46,011 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 02:11:46,012 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 02:11:46,012 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 02:11:46,012 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 02:11:46,012 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 02:11:46,012 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 02:11:46,013 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 02:11:46,013 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 02:11:46,013 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 02:11:46,013 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 02:11:46,014 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 02:11:46,015 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 02:11:46,016 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 02:11:46,017 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 02:11:46,018 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 02:11:46,018 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 02:11:46,018 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 02:11:46,018 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 02:11:46,018 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 02:11:46,019 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 02:11:46,019 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 02:11:46,019 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 02:11:46,019 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 02:11:46,019 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 02:11:46,020 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 02:11:46,020 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 02:11:46,020 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 02:11:46,020 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 02:11:46,021 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 02:11:46,021 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 02:11:46,021 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 02:11:46,022 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 02:11:46,022 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 02:11:46,022 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 02:11:46,022 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 02:11:46,023 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 02:11:46,025 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 02:11:46,026 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 02:11:46,026 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 02:11:46,026 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 02:11:46,027 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 02:11:46,027 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 02:11:46,028 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 02:11:46,028 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 02:11:46,029 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 02:11:46,031 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 02:11:46,033 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 02:11:46,047 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-barrier-loop.wvr.c[5938,5951] [2022-12-06 02:11:46,048 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-06 02:11:46,069 INFO L208 MainTranslator]: Completed translation [2022-12-06 02:11:46,070 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 02:11:46 WrapperNode [2022-12-06 02:11:46,070 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-06 02:11:46,071 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-06 02:11:46,071 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-06 02:11:46,071 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-06 02:11:46,077 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 02:11:46" (1/1) ... [2022-12-06 02:11:46,096 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 02:11:46" (1/1) ... [2022-12-06 02:11:46,119 INFO L138 Inliner]: procedures = 25, calls = 120, calls flagged for inlining = 12, calls inlined = 12, statements flattened = 248 [2022-12-06 02:11:46,119 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-06 02:11:46,120 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-06 02:11:46,120 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-06 02:11:46,120 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-06 02:11:46,127 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 02:11:46" (1/1) ... [2022-12-06 02:11:46,127 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 02:11:46" (1/1) ... [2022-12-06 02:11:46,139 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 02:11:46" (1/1) ... [2022-12-06 02:11:46,139 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 02:11:46" (1/1) ... [2022-12-06 02:11:46,145 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 02:11:46" (1/1) ... [2022-12-06 02:11:46,149 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 02:11:46" (1/1) ... [2022-12-06 02:11:46,150 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 02:11:46" (1/1) ... [2022-12-06 02:11:46,168 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 02:11:46" (1/1) ... [2022-12-06 02:11:46,171 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-06 02:11:46,172 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-06 02:11:46,172 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-06 02:11:46,172 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-06 02:11:46,173 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 02:11:46" (1/1) ... [2022-12-06 02:11:46,177 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-06 02:11:46,191 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-06 02:11:46,204 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 02:11:46,233 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 02:11:46,251 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-06 02:11:46,252 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-06 02:11:46,252 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-06 02:11:46,252 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-06 02:11:46,252 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-12-06 02:11:46,252 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-12-06 02:11:46,252 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-12-06 02:11:46,252 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-12-06 02:11:46,252 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2022-12-06 02:11:46,253 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2022-12-06 02:11:46,253 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2022-12-06 02:11:46,253 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2022-12-06 02:11:46,253 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-06 02:11:46,253 INFO L130 BoogieDeclarations]: Found specification of procedure thread5 [2022-12-06 02:11:46,253 INFO L138 BoogieDeclarations]: Found implementation of procedure thread5 [2022-12-06 02:11:46,253 INFO L130 BoogieDeclarations]: Found specification of procedure thread6 [2022-12-06 02:11:46,253 INFO L138 BoogieDeclarations]: Found implementation of procedure thread6 [2022-12-06 02:11:46,254 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-12-06 02:11:46,254 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-12-06 02:11:46,254 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-06 02:11:46,255 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-06 02:11:46,255 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-06 02:11:46,256 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 02:11:46,382 INFO L236 CfgBuilder]: Building ICFG [2022-12-06 02:11:46,383 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-06 02:11:46,712 INFO L277 CfgBuilder]: Performing block encoding [2022-12-06 02:11:46,871 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-06 02:11:46,871 INFO L302 CfgBuilder]: Removed 4 assume(true) statements. [2022-12-06 02:11:46,873 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 02:11:46 BoogieIcfgContainer [2022-12-06 02:11:46,873 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-06 02:11:46,875 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-06 02:11:46,875 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-06 02:11:46,878 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-06 02:11:46,878 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.12 02:11:45" (1/3) ... [2022-12-06 02:11:46,879 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@70811297 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.12 02:11:46, skipping insertion in model container [2022-12-06 02:11:46,879 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 02:11:46" (2/3) ... [2022-12-06 02:11:46,879 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@70811297 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.12 02:11:46, skipping insertion in model container [2022-12-06 02:11:46,879 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 02:11:46" (3/3) ... [2022-12-06 02:11:46,881 INFO L112 eAbstractionObserver]: Analyzing ICFG parallel-barrier-loop.wvr.c [2022-12-06 02:11:46,903 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-06 02:11:46,903 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-12-06 02:11:46,904 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-12-06 02:11:47,094 INFO L144 ThreadInstanceAdder]: Constructed 18 joinOtherThreadTransitions. [2022-12-06 02:11:47,139 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 250 places, 245 transitions, 562 flow [2022-12-06 02:11:47,301 INFO L130 PetriNetUnfolder]: 14/217 cut-off events. [2022-12-06 02:11:47,301 INFO L131 PetriNetUnfolder]: For 6/6 co-relation queries the response was YES. [2022-12-06 02:11:47,318 INFO L83 FinitePrefix]: Finished finitePrefix Result has 246 conditions, 217 events. 14/217 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 364 event pairs, 0 based on Foata normal form. 0/202 useless extension candidates. Maximal degree in co-relation 182. Up to 3 conditions per place. [2022-12-06 02:11:47,319 INFO L82 GeneralOperation]: Start removeDead. Operand has 250 places, 245 transitions, 562 flow [2022-12-06 02:11:47,330 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 214 places, 209 transitions, 466 flow [2022-12-06 02:11:47,332 INFO L195 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-06 02:11:47,358 INFO L167 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 214 places, 209 transitions, 466 flow [2022-12-06 02:11:47,362 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 214 places, 209 transitions, 466 flow [2022-12-06 02:11:47,422 INFO L130 PetriNetUnfolder]: 14/209 cut-off events. [2022-12-06 02:11:47,423 INFO L131 PetriNetUnfolder]: For 6/6 co-relation queries the response was YES. [2022-12-06 02:11:47,433 INFO L83 FinitePrefix]: Finished finitePrefix Result has 238 conditions, 209 events. 14/209 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 363 event pairs, 0 based on Foata normal form. 0/195 useless extension candidates. Maximal degree in co-relation 182. Up to 3 conditions per place. [2022-12-06 02:11:47,441 INFO L184 LiptonReduction]: Starting Lipton reduction on Petri net that has 214 places, 209 transitions, 466 flow [2022-12-06 02:11:47,441 INFO L188 LiptonReduction]: Number of co-enabled transitions 10592 [2022-12-06 02:11:51,257 INFO L203 LiptonReduction]: Total number of compositions: 126 [2022-12-06 02:11:51,270 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-06 02:11:51,276 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;@3565ad15, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, Conditionality=CONDITIONAL_DISJUNCTIVE, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-06 02:11:51,276 INFO L358 AbstractCegarLoop]: Starting to check reachability of 11 error locations. [2022-12-06 02:11:51,287 INFO L130 PetriNetUnfolder]: 8/82 cut-off events. [2022-12-06 02:11:51,287 INFO L131 PetriNetUnfolder]: For 6/6 co-relation queries the response was YES. [2022-12-06 02:11:51,288 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 02:11:51,288 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] [2022-12-06 02:11:51,289 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [thread1Err1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread1Err8INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2022-12-06 02:11:51,292 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 02:11:51,293 INFO L85 PathProgramCache]: Analyzing trace with hash 1572349509, now seen corresponding path program 1 times [2022-12-06 02:11:51,301 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 02:11:51,301 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1700223980] [2022-12-06 02:11:51,301 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 02:11:51,302 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 02:11:51,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 02:11:52,144 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 02:11:52,144 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 02:11:52,145 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1700223980] [2022-12-06 02:11:52,145 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1700223980] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 02:11:52,146 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 02:11:52,146 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-12-06 02:11:52,147 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1046847889] [2022-12-06 02:11:52,148 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 02:11:52,155 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-06 02:11:52,155 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 02:11:52,177 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-06 02:11:52,178 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-06 02:11:52,179 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 22 out of 83 [2022-12-06 02:11:52,181 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 94 places, 83 transitions, 214 flow. Second operand has 3 states, 3 states have (on average 33.0) internal successors, (99), 3 states have internal predecessors, (99), 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 02:11:52,181 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 02:11:52,181 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 22 of 83 [2022-12-06 02:11:52,182 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 02:12:05,767 INFO L130 PetriNetUnfolder]: 158623/210585 cut-off events. [2022-12-06 02:12:05,767 INFO L131 PetriNetUnfolder]: For 17762/17762 co-relation queries the response was YES. [2022-12-06 02:12:06,383 INFO L83 FinitePrefix]: Finished finitePrefix Result has 426322 conditions, 210585 events. 158623/210585 cut-off events. For 17762/17762 co-relation queries the response was YES. Maximal size of possible extension queue 5535. Compared 1367345 event pairs, 61192 based on Foata normal form. 1/186156 useless extension candidates. Maximal degree in co-relation 423806. Up to 185756 conditions per place. [2022-12-06 02:12:07,420 INFO L137 encePairwiseOnDemand]: 77/83 looper letters, 97 selfloop transitions, 5 changer transitions 1/125 dead transitions. [2022-12-06 02:12:07,420 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 96 places, 125 transitions, 549 flow [2022-12-06 02:12:07,421 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-06 02:12:07,424 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-06 02:12:07,430 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 170 transitions. [2022-12-06 02:12:07,432 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.6827309236947792 [2022-12-06 02:12:07,435 INFO L294 CegarLoopForPetriNet]: 94 programPoint places, 2 predicate places. [2022-12-06 02:12:07,438 INFO L195 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-06 02:12:07,438 INFO L167 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 96 places, 125 transitions, 549 flow [2022-12-06 02:12:08,669 INFO L184 LiptonReduction]: Starting Lipton reduction on Petri net that has 96 places, 125 transitions, 549 flow [2022-12-06 02:12:08,669 INFO L188 LiptonReduction]: Number of co-enabled transitions 2304 [2022-12-06 02:12:39,875 INFO L203 LiptonReduction]: Total number of compositions: 21 [2022-12-06 02:12:39,877 INFO L143 eatedLiptonReduction]: Time needed for LBE in milliseconds: 32442 [2022-12-06 02:12:39,877 INFO L495 AbstractCegarLoop]: Abstraction has has 80 places, 109 transitions, 517 flow [2022-12-06 02:12:39,877 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 33.0) internal successors, (99), 3 states have internal predecessors, (99), 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 02:12:39,877 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 02:12:39,877 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] [2022-12-06 02:12:39,878 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-06 02:12:39,878 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [thread1Err1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread1Err8INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2022-12-06 02:12:39,879 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 02:12:39,879 INFO L85 PathProgramCache]: Analyzing trace with hash -1673056834, now seen corresponding path program 1 times [2022-12-06 02:12:39,879 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 02:12:39,879 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [682094270] [2022-12-06 02:12:39,879 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 02:12:39,880 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 02:12:39,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 02:12:40,099 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 02:12:40,102 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 02:12:40,102 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [682094270] [2022-12-06 02:12:40,105 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [682094270] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 02:12:40,105 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 02:12:40,105 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-06 02:12:40,105 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [70412220] [2022-12-06 02:12:40,105 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 02:12:40,106 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-06 02:12:40,107 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 02:12:40,107 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-06 02:12:40,107 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-06 02:12:40,107 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 73 [2022-12-06 02:12:40,108 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 80 places, 109 transitions, 517 flow. Second operand has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 3 states have internal predecessors, (82), 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 02:12:40,108 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 02:12:40,108 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 73 [2022-12-06 02:12:40,108 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 02:12:52,647 INFO L130 PetriNetUnfolder]: 178611/223307 cut-off events. [2022-12-06 02:12:52,647 INFO L131 PetriNetUnfolder]: For 95720/95925 co-relation queries the response was YES. [2022-12-06 02:12:53,241 INFO L83 FinitePrefix]: Finished finitePrefix Result has 632550 conditions, 223307 events. 178611/223307 cut-off events. For 95720/95925 co-relation queries the response was YES. Maximal size of possible extension queue 4544. Compared 1179614 event pairs, 74395 based on Foata normal form. 6131/201729 useless extension candidates. Maximal degree in co-relation 628952. Up to 208789 conditions per place. [2022-12-06 02:12:54,198 INFO L137 encePairwiseOnDemand]: 68/73 looper letters, 140 selfloop transitions, 4 changer transitions 1/162 dead transitions. [2022-12-06 02:12:54,198 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 82 places, 162 transitions, 1061 flow [2022-12-06 02:12:54,199 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-06 02:12:54,199 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-06 02:12:54,201 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 139 transitions. [2022-12-06 02:12:54,202 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.634703196347032 [2022-12-06 02:12:54,202 INFO L294 CegarLoopForPetriNet]: 94 programPoint places, -12 predicate places. [2022-12-06 02:12:54,203 INFO L195 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-06 02:12:54,203 INFO L167 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 82 places, 162 transitions, 1061 flow [2022-12-06 02:12:55,251 INFO L184 LiptonReduction]: Starting Lipton reduction on Petri net that has 82 places, 162 transitions, 1061 flow [2022-12-06 02:12:55,252 INFO L188 LiptonReduction]: Number of co-enabled transitions 346 [2022-12-06 02:12:59,273 INFO L203 LiptonReduction]: Total number of compositions: 1 [2022-12-06 02:12:59,274 INFO L143 eatedLiptonReduction]: Time needed for LBE in milliseconds: 5071 [2022-12-06 02:12:59,275 INFO L495 AbstractCegarLoop]: Abstraction has has 82 places, 162 transitions, 1065 flow [2022-12-06 02:12:59,275 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 3 states have internal predecessors, (82), 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 02:12:59,275 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 02:12:59,275 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] [2022-12-06 02:12:59,275 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-06 02:12:59,276 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [thread1Err1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread1Err8INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2022-12-06 02:12:59,276 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 02:12:59,276 INFO L85 PathProgramCache]: Analyzing trace with hash 601448482, now seen corresponding path program 1 times [2022-12-06 02:12:59,276 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 02:12:59,276 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1905458396] [2022-12-06 02:12:59,276 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 02:12:59,277 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 02:12:59,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 02:12:59,548 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 02:12:59,548 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 02:12:59,549 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1905458396] [2022-12-06 02:12:59,551 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1905458396] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 02:12:59,552 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 02:12:59,552 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-06 02:12:59,552 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1318585453] [2022-12-06 02:12:59,552 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 02:12:59,553 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-06 02:12:59,553 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 02:12:59,553 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-06 02:12:59,554 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-06 02:12:59,554 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 13 out of 74 [2022-12-06 02:12:59,555 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 82 places, 162 transitions, 1065 flow. Second operand has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 3 states have internal predecessors, (76), 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 02:12:59,555 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 02:12:59,555 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 13 of 74 [2022-12-06 02:12:59,555 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand