/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-RepeatedSemanticLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/weaver/parallel-ticket-7.wvr.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.repeated-lipton-8d0d62b [2022-12-06 00:07:07,214 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-06 00:07:07,216 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-06 00:07:07,245 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-06 00:07:07,245 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-06 00:07:07,247 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-06 00:07:07,250 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-06 00:07:07,253 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-06 00:07:07,257 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-06 00:07:07,262 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-06 00:07:07,263 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-06 00:07:07,264 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-06 00:07:07,264 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-06 00:07:07,266 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-06 00:07:07,267 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-06 00:07:07,270 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-06 00:07:07,270 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-06 00:07:07,271 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-06 00:07:07,273 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-06 00:07:07,277 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-06 00:07:07,278 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-06 00:07:07,279 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-06 00:07:07,280 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-06 00:07:07,281 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-06 00:07:07,286 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-06 00:07:07,287 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-06 00:07:07,287 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-06 00:07:07,289 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-06 00:07:07,289 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-06 00:07:07,290 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-06 00:07:07,290 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-06 00:07:07,291 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-06 00:07:07,292 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-06 00:07:07,293 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-06 00:07:07,293 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-06 00:07:07,293 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-06 00:07:07,294 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-06 00:07:07,294 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-06 00:07:07,294 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-06 00:07:07,295 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-06 00:07:07,295 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-06 00:07:07,296 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 00:07:07,327 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-06 00:07:07,327 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-06 00:07:07,329 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-06 00:07:07,329 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-06 00:07:07,329 INFO L138 SettingsManager]: * Use SBE=true [2022-12-06 00:07:07,330 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-06 00:07:07,330 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-06 00:07:07,330 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-06 00:07:07,330 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-06 00:07:07,330 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-06 00:07:07,331 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-06 00:07:07,331 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-06 00:07:07,331 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-06 00:07:07,331 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-06 00:07:07,331 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-06 00:07:07,332 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-06 00:07:07,332 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-06 00:07:07,332 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-06 00:07:07,332 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-06 00:07:07,332 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-12-06 00:07:07,332 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-06 00:07:07,332 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-06 00:07:07,332 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-06 00:07:07,332 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-06 00:07:07,333 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-06 00:07:07,333 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-06 00:07:07,333 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-06 00:07:07,333 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=REPEATED_LIPTON_PN [2022-12-06 00:07:07,333 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-12-06 00:07:07,618 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-06 00:07:07,644 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-06 00:07:07,646 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-06 00:07:07,647 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-06 00:07:07,647 INFO L275 PluginConnector]: CDTParser initialized [2022-12-06 00:07:07,648 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/parallel-ticket-7.wvr.c [2022-12-06 00:07:08,610 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-06 00:07:08,805 INFO L351 CDTParser]: Found 1 translation units. [2022-12-06 00:07:08,806 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/parallel-ticket-7.wvr.c [2022-12-06 00:07:08,811 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e907911c2/45a837600f2944da9f7039b697553185/FLAGe15e3d9cf [2022-12-06 00:07:08,825 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e907911c2/45a837600f2944da9f7039b697553185 [2022-12-06 00:07:08,827 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-06 00:07:08,828 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-12-06 00:07:08,829 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-06 00:07:08,829 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-06 00:07:08,831 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-06 00:07:08,831 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 12:07:08" (1/1) ... [2022-12-06 00:07:08,832 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6dc4bf54 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 12:07:08, skipping insertion in model container [2022-12-06 00:07:08,832 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 12:07:08" (1/1) ... [2022-12-06 00:07:08,836 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-06 00:07:08,849 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-06 00:07:08,937 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 00:07:08,939 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 00:07:08,939 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 00:07:08,939 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 00:07:08,940 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 00:07:08,940 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 00:07:08,940 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 00:07:08,940 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 00:07:08,940 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 00:07:08,941 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 00:07:08,942 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 00:07:08,942 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 00:07:08,942 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 00:07:08,942 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 00:07:08,943 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 00:07:08,943 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 00:07:08,943 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 00:07:08,948 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 00:07:08,949 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 00:07:08,950 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 00:07:08,950 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 00:07:08,951 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 00:07:08,951 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 00:07:08,953 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 00:07:08,953 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 00:07:08,958 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 00:07:08,959 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 00:07:08,960 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 00:07:08,960 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 00:07:08,960 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 00:07:08,960 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 00:07:08,961 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 00:07:08,961 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 00:07:08,961 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 00:07:08,961 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 00:07:08,962 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 00:07:08,962 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 00:07:08,962 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 00:07:08,962 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 00:07:08,963 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 00:07:08,963 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 00:07:08,963 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 00:07:08,963 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 00:07:08,964 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 00:07:08,964 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 00:07:08,964 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 00:07:08,964 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 00:07:08,964 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 00:07:08,965 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 00:07:08,965 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 00:07:08,965 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 00:07:08,965 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 00:07:08,966 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 00:07:08,966 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 00:07:08,966 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 00:07:08,966 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 00:07:08,966 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 00:07:08,967 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 00:07:08,991 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-ticket-7.wvr.c[4837,4850] [2022-12-06 00:07:08,999 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-06 00:07:09,005 INFO L203 MainTranslator]: Completed pre-run [2022-12-06 00:07:09,021 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 00:07:09,022 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 00:07:09,022 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 00:07:09,023 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 00:07:09,023 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 00:07:09,024 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 00:07:09,024 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 00:07:09,024 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 00:07:09,024 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 00:07:09,025 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 00:07:09,025 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 00:07:09,026 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 00:07:09,026 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 00:07:09,027 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 00:07:09,027 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 00:07:09,029 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 00:07:09,029 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 00:07:09,029 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 00:07:09,032 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 00:07:09,032 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 00:07:09,032 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 00:07:09,033 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 00:07:09,033 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 00:07:09,034 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 00:07:09,034 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 00:07:09,039 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 00:07:09,040 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 00:07:09,041 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 00:07:09,041 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 00:07:09,043 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 00:07:09,043 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 00:07:09,043 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 00:07:09,043 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 00:07:09,044 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 00:07:09,045 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 00:07:09,045 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 00:07:09,045 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 00:07:09,046 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 00:07:09,046 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 00:07:09,046 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 00:07:09,046 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 00:07:09,046 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 00:07:09,047 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 00:07:09,047 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 00:07:09,047 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 00:07:09,047 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 00:07:09,047 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 00:07:09,047 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 00:07:09,048 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 00:07:09,048 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 00:07:09,048 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 00:07:09,048 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 00:07:09,048 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 00:07:09,049 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 00:07:09,049 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 00:07:09,049 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 00:07:09,049 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 00:07:09,049 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 00:07:09,054 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-ticket-7.wvr.c[4837,4850] [2022-12-06 00:07:09,062 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-06 00:07:09,075 INFO L208 MainTranslator]: Completed translation [2022-12-06 00:07:09,076 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 12:07:09 WrapperNode [2022-12-06 00:07:09,076 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-06 00:07:09,077 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-06 00:07:09,077 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-06 00:07:09,077 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-06 00:07:09,082 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 12:07:09" (1/1) ... [2022-12-06 00:07:09,102 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 12:07:09" (1/1) ... [2022-12-06 00:07:09,133 INFO L138 Inliner]: procedures = 26, calls = 115, calls flagged for inlining = 11, calls inlined = 11, statements flattened = 318 [2022-12-06 00:07:09,134 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-06 00:07:09,134 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-06 00:07:09,134 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-06 00:07:09,134 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-06 00:07:09,144 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 12:07:09" (1/1) ... [2022-12-06 00:07:09,145 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 12:07:09" (1/1) ... [2022-12-06 00:07:09,152 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 12:07:09" (1/1) ... [2022-12-06 00:07:09,153 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 12:07:09" (1/1) ... [2022-12-06 00:07:09,160 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 12:07:09" (1/1) ... [2022-12-06 00:07:09,162 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 12:07:09" (1/1) ... [2022-12-06 00:07:09,163 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 12:07:09" (1/1) ... [2022-12-06 00:07:09,164 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 12:07:09" (1/1) ... [2022-12-06 00:07:09,167 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-06 00:07:09,177 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-06 00:07:09,177 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-06 00:07:09,177 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-06 00:07:09,178 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 12:07:09" (1/1) ... [2022-12-06 00:07:09,182 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-06 00:07:09,190 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-06 00:07:09,202 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 00:07:09,223 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 00:07:09,237 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-06 00:07:09,238 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-06 00:07:09,238 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-06 00:07:09,238 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-06 00:07:09,238 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-12-06 00:07:09,238 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-12-06 00:07:09,239 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-12-06 00:07:09,239 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-12-06 00:07:09,239 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2022-12-06 00:07:09,239 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2022-12-06 00:07:09,240 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2022-12-06 00:07:09,240 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2022-12-06 00:07:09,241 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-06 00:07:09,243 INFO L130 BoogieDeclarations]: Found specification of procedure thread5 [2022-12-06 00:07:09,248 INFO L138 BoogieDeclarations]: Found implementation of procedure thread5 [2022-12-06 00:07:09,248 INFO L130 BoogieDeclarations]: Found specification of procedure thread6 [2022-12-06 00:07:09,248 INFO L138 BoogieDeclarations]: Found implementation of procedure thread6 [2022-12-06 00:07:09,248 INFO L130 BoogieDeclarations]: Found specification of procedure thread7 [2022-12-06 00:07:09,248 INFO L138 BoogieDeclarations]: Found implementation of procedure thread7 [2022-12-06 00:07:09,248 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-12-06 00:07:09,248 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-12-06 00:07:09,248 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-06 00:07:09,248 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-06 00:07:09,248 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-06 00:07:09,250 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 00:07:09,349 INFO L236 CfgBuilder]: Building ICFG [2022-12-06 00:07:09,350 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-06 00:07:09,672 INFO L277 CfgBuilder]: Performing block encoding [2022-12-06 00:07:09,761 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-06 00:07:09,761 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-06 00:07:09,766 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 12:07:09 BoogieIcfgContainer [2022-12-06 00:07:09,766 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-06 00:07:09,768 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-06 00:07:09,768 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-06 00:07:09,770 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-06 00:07:09,770 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.12 12:07:08" (1/3) ... [2022-12-06 00:07:09,771 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@29f5fecf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.12 12:07:09, skipping insertion in model container [2022-12-06 00:07:09,771 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 12:07:09" (2/3) ... [2022-12-06 00:07:09,771 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@29f5fecf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.12 12:07:09, skipping insertion in model container [2022-12-06 00:07:09,771 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 12:07:09" (3/3) ... [2022-12-06 00:07:09,772 INFO L112 eAbstractionObserver]: Analyzing ICFG parallel-ticket-7.wvr.c [2022-12-06 00:07:09,786 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-06 00:07:09,787 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-12-06 00:07:09,787 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-12-06 00:07:09,849 INFO L144 ThreadInstanceAdder]: Constructed 7 joinOtherThreadTransitions. [2022-12-06 00:07:09,894 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 224 places, 204 transitions, 464 flow [2022-12-06 00:07:09,977 INFO L130 PetriNetUnfolder]: 2/197 cut-off events. [2022-12-06 00:07:09,977 INFO L131 PetriNetUnfolder]: For 7/7 co-relation queries the response was YES. [2022-12-06 00:07:09,981 INFO L83 FinitePrefix]: Finished finitePrefix Result has 226 conditions, 197 events. 2/197 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 87 event pairs, 0 based on Foata normal form. 0/194 useless extension candidates. Maximal degree in co-relation 153. Up to 2 conditions per place. [2022-12-06 00:07:09,982 INFO L82 GeneralOperation]: Start removeDead. Operand has 224 places, 204 transitions, 464 flow [2022-12-06 00:07:09,989 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 199 places, 179 transitions, 400 flow [2022-12-06 00:07:09,991 INFO L195 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-06 00:07:10,011 INFO L167 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 199 places, 179 transitions, 400 flow [2022-12-06 00:07:10,014 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 199 places, 179 transitions, 400 flow [2022-12-06 00:07:10,088 INFO L130 PetriNetUnfolder]: 2/179 cut-off events. [2022-12-06 00:07:10,089 INFO L131 PetriNetUnfolder]: For 7/7 co-relation queries the response was YES. [2022-12-06 00:07:10,089 INFO L83 FinitePrefix]: Finished finitePrefix Result has 208 conditions, 179 events. 2/179 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 86 event pairs, 0 based on Foata normal form. 0/177 useless extension candidates. Maximal degree in co-relation 153. Up to 2 conditions per place. [2022-12-06 00:07:10,092 INFO L184 LiptonReduction]: Starting Lipton reduction on Petri net that has 199 places, 179 transitions, 400 flow [2022-12-06 00:07:10,092 INFO L188 LiptonReduction]: Number of co-enabled transitions 4182 [2022-12-06 00:07:20,033 INFO L203 LiptonReduction]: Total number of compositions: 135 [2022-12-06 00:07:20,050 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-06 00:07:20,056 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;@6cd7967b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, Conditionality=CONDITIONAL_DISJUNCTIVE, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-06 00:07:20,056 INFO L358 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2022-12-06 00:07:20,068 INFO L130 PetriNetUnfolder]: 0/43 cut-off events. [2022-12-06 00:07:20,068 INFO L131 PetriNetUnfolder]: For 7/7 co-relation queries the response was YES. [2022-12-06 00:07:20,068 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 00:07:20,069 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 00:07:20,069 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 5 more)] === [2022-12-06 00:07:20,072 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 00:07:20,072 INFO L85 PathProgramCache]: Analyzing trace with hash -1030329122, now seen corresponding path program 1 times [2022-12-06 00:07:20,079 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 00:07:20,079 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2038402202] [2022-12-06 00:07:20,079 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 00:07:20,080 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 00:07:20,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 00:07:21,829 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 00:07:21,830 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 00:07:21,830 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2038402202] [2022-12-06 00:07:21,830 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2038402202] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 00:07:21,830 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 00:07:21,830 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-12-06 00:07:21,831 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1703008522] [2022-12-06 00:07:21,832 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 00:07:21,838 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-12-06 00:07:21,838 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 00:07:21,855 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-12-06 00:07:21,855 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2022-12-06 00:07:21,856 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 0 out of 44 [2022-12-06 00:07:21,857 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 66 places, 44 transitions, 130 flow. Second operand has 8 states, 7 states have (on average 6.285714285714286) internal successors, (44), 7 states have internal predecessors, (44), 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 00:07:21,857 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 00:07:21,857 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 0 of 44 [2022-12-06 00:07:21,858 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 00:07:27,543 INFO L130 PetriNetUnfolder]: 68867/86768 cut-off events. [2022-12-06 00:07:27,543 INFO L131 PetriNetUnfolder]: For 6627/6627 co-relation queries the response was YES. [2022-12-06 00:07:27,699 INFO L83 FinitePrefix]: Finished finitePrefix Result has 178818 conditions, 86768 events. 68867/86768 cut-off events. For 6627/6627 co-relation queries the response was YES. Maximal size of possible extension queue 1977. Compared 421900 event pairs, 8446 based on Foata normal form. 2/86770 useless extension candidates. Maximal degree in co-relation 177045. Up to 51938 conditions per place. [2022-12-06 00:07:27,943 INFO L137 encePairwiseOnDemand]: 27/44 looper letters, 104 selfloop transitions, 28 changer transitions 51/183 dead transitions. [2022-12-06 00:07:27,944 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 74 places, 183 transitions, 852 flow [2022-12-06 00:07:27,945 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-12-06 00:07:27,946 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2022-12-06 00:07:27,953 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 185 transitions. [2022-12-06 00:07:27,957 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.4671717171717172 [2022-12-06 00:07:27,958 INFO L175 Difference]: Start difference. First operand has 66 places, 44 transitions, 130 flow. Second operand 9 states and 185 transitions. [2022-12-06 00:07:27,959 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 74 places, 183 transitions, 852 flow [2022-12-06 00:07:28,288 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 60 places, 183 transitions, 772 flow, removed 0 selfloop flow, removed 14 redundant places. [2022-12-06 00:07:28,291 INFO L231 Difference]: Finished difference. Result has 66 places, 77 transitions, 302 flow [2022-12-06 00:07:28,292 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=44, PETRI_DIFFERENCE_MINUEND_FLOW=102, PETRI_DIFFERENCE_MINUEND_PLACES=52, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=44, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=29, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=302, PETRI_PLACES=66, PETRI_TRANSITIONS=77} [2022-12-06 00:07:28,295 INFO L294 CegarLoopForPetriNet]: 66 programPoint places, 0 predicate places. [2022-12-06 00:07:28,295 WARN L163 eatedLiptonReduction]: Counterexample is not a run of mAbstraction. Replaying acceptance of the word... [2022-12-06 00:07:28,295 INFO L89 Accepts]: Start accepts. Operand has 66 places, 77 transitions, 302 flow [2022-12-06 00:07:28,300 INFO L95 Accepts]: Finished accepts. [2022-12-06 00:07:28,300 INFO L195 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-06 00:07:28,301 INFO L167 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 66 places, 77 transitions, 302 flow [2022-12-06 00:07:28,304 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 64 places, 77 transitions, 302 flow [2022-12-06 00:07:28,764 INFO L130 PetriNetUnfolder]: 3371/5628 cut-off events. [2022-12-06 00:07:28,764 INFO L131 PetriNetUnfolder]: For 308/366 co-relation queries the response was YES. [2022-12-06 00:07:28,784 INFO L83 FinitePrefix]: Finished finitePrefix Result has 11918 conditions, 5628 events. 3371/5628 cut-off events. For 308/366 co-relation queries the response was YES. Maximal size of possible extension queue 637. Compared 40813 event pairs, 1273 based on Foata normal form. 0/5009 useless extension candidates. Maximal degree in co-relation 11907. Up to 3086 conditions per place. [2022-12-06 00:07:28,825 INFO L184 LiptonReduction]: Starting Lipton reduction on Petri net that has 64 places, 77 transitions, 302 flow [2022-12-06 00:07:28,825 INFO L188 LiptonReduction]: Number of co-enabled transitions 1026 [2022-12-06 00:07:29,261 ERROR L112 fgCompositionFactory]: Composing non-subsequent actions: [740] L45-->L52: Formula: (and (not (= |v_thread1Thread1of1ForFork5_assume_abort_if_not_~cond#1_33| 0)) (= v_~x~0_169 1) (= (ite (<= v_~m1~0_47 v_~s~0_719) 1 0) |v_thread1Thread1of1ForFork5_assume_abort_if_not_#in~cond#1_33|) (= |v_thread1Thread1of1ForFork5_assume_abort_if_not_~cond#1_33| |v_thread1Thread1of1ForFork5_assume_abort_if_not_#in~cond#1_33|)) InVars {~m1~0=v_~m1~0_47, ~s~0=v_~s~0_719} OutVars{thread1Thread1of1ForFork5_assume_abort_if_not_~cond#1=|v_thread1Thread1of1ForFork5_assume_abort_if_not_~cond#1_33|, ~m1~0=v_~m1~0_47, thread1Thread1of1ForFork5_assume_abort_if_not_#in~cond#1=|v_thread1Thread1of1ForFork5_assume_abort_if_not_#in~cond#1_33|, ~x~0=v_~x~0_169, ~s~0=v_~s~0_719} AuxVars[] AssignedVars[thread1Thread1of1ForFork5_assume_abort_if_not_~cond#1, thread1Thread1of1ForFork5_assume_abort_if_not_#in~cond#1, ~x~0] and [729] L67-->thread2EXIT: Formula: (and (= (+ v_~s~0_562 1) v_~s~0_561) (= |v_thread2Thread1of1ForFork1_assume_abort_if_not_#in~cond#1_45| (ite (<= v_~m2~0_67 v_~s~0_562) 1 0)) (= |v_thread2Thread1of1ForFork1_#res#1.base_7| 0) (= |v_thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1_45| |v_thread2Thread1of1ForFork1_assume_abort_if_not_#in~cond#1_45|) (not (= |v_thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1_45| 0)) (= (ite (= (ite (or (= v_~x~0_111 1) (not (= (mod v_~b~0_190 256) 0))) 1 0) 0) 0 1) v_~b~0_189) (= |v_thread2Thread1of1ForFork1_#res#1.offset_7| 0)) InVars {~b~0=v_~b~0_190, ~m2~0=v_~m2~0_67, ~x~0=v_~x~0_111, ~s~0=v_~s~0_562} OutVars{thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1=|v_thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1_45|, thread2Thread1of1ForFork1_#res#1.base=|v_thread2Thread1of1ForFork1_#res#1.base_7|, thread2Thread1of1ForFork1_#t~post4#1=|v_thread2Thread1of1ForFork1_#t~post4#1_43|, ~b~0=v_~b~0_189, thread2Thread1of1ForFork1_#res#1.offset=|v_thread2Thread1of1ForFork1_#res#1.offset_7|, ~m2~0=v_~m2~0_67, thread2Thread1of1ForFork1_assume_abort_if_not_#in~cond#1=|v_thread2Thread1of1ForFork1_assume_abort_if_not_#in~cond#1_45|, ~x~0=v_~x~0_111, ~s~0=v_~s~0_561} AuxVars[] AssignedVars[thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1, thread2Thread1of1ForFork1_#res#1.base, thread2Thread1of1ForFork1_#t~post4#1, ~b~0, thread2Thread1of1ForFork1_#res#1.offset, thread2Thread1of1ForFork1_assume_abort_if_not_#in~cond#1, ~s~0] [2022-12-06 00:07:29,339 ERROR L112 fgCompositionFactory]: Composing non-subsequent actions: [740] L45-->L52: Formula: (and (not (= |v_thread1Thread1of1ForFork5_assume_abort_if_not_~cond#1_33| 0)) (= v_~x~0_169 1) (= (ite (<= v_~m1~0_47 v_~s~0_719) 1 0) |v_thread1Thread1of1ForFork5_assume_abort_if_not_#in~cond#1_33|) (= |v_thread1Thread1of1ForFork5_assume_abort_if_not_~cond#1_33| |v_thread1Thread1of1ForFork5_assume_abort_if_not_#in~cond#1_33|)) InVars {~m1~0=v_~m1~0_47, ~s~0=v_~s~0_719} OutVars{thread1Thread1of1ForFork5_assume_abort_if_not_~cond#1=|v_thread1Thread1of1ForFork5_assume_abort_if_not_~cond#1_33|, ~m1~0=v_~m1~0_47, thread1Thread1of1ForFork5_assume_abort_if_not_#in~cond#1=|v_thread1Thread1of1ForFork5_assume_abort_if_not_#in~cond#1_33|, ~x~0=v_~x~0_169, ~s~0=v_~s~0_719} AuxVars[] AssignedVars[thread1Thread1of1ForFork5_assume_abort_if_not_~cond#1, thread1Thread1of1ForFork5_assume_abort_if_not_#in~cond#1, ~x~0] and [747] L105-->thread4EXIT: Formula: (and (= (+ v_~s~0_750 1) v_~s~0_749) (= |v_thread4Thread1of1ForFork6_#res#1.base_33| 0) (not (= |v_thread4Thread1of1ForFork6_assume_abort_if_not_~cond#1_31| 0)) (= |v_thread4Thread1of1ForFork6_assume_abort_if_not_#in~cond#1_31| |v_thread4Thread1of1ForFork6_assume_abort_if_not_~cond#1_31|) (= v_~b~0_297 (ite (= 0 (ite (or (not (= (mod v_~b~0_298 256) 0)) (= v_~x~0_184 1)) 1 0)) 0 1)) (= |v_thread4Thread1of1ForFork6_assume_abort_if_not_#in~cond#1_31| (ite (<= v_~m4~0_55 v_~s~0_750) 1 0)) (= |v_thread4Thread1of1ForFork6_#res#1.offset_33| 0)) InVars {~b~0=v_~b~0_298, ~m4~0=v_~m4~0_55, ~x~0=v_~x~0_184, ~s~0=v_~s~0_750} OutVars{thread4Thread1of1ForFork6_#res#1.offset=|v_thread4Thread1of1ForFork6_#res#1.offset_33|, ~b~0=v_~b~0_297, thread4Thread1of1ForFork6_assume_abort_if_not_~cond#1=|v_thread4Thread1of1ForFork6_assume_abort_if_not_~cond#1_31|, ~m4~0=v_~m4~0_55, thread4Thread1of1ForFork6_#res#1.base=|v_thread4Thread1of1ForFork6_#res#1.base_33|, thread4Thread1of1ForFork6_#t~post8#1=|v_thread4Thread1of1ForFork6_#t~post8#1_57|, ~x~0=v_~x~0_184, thread4Thread1of1ForFork6_assume_abort_if_not_#in~cond#1=|v_thread4Thread1of1ForFork6_assume_abort_if_not_#in~cond#1_31|, ~s~0=v_~s~0_749} AuxVars[] AssignedVars[thread4Thread1of1ForFork6_#res#1.offset, ~b~0, thread4Thread1of1ForFork6_assume_abort_if_not_~cond#1, thread4Thread1of1ForFork6_#res#1.base, thread4Thread1of1ForFork6_#t~post8#1, thread4Thread1of1ForFork6_assume_abort_if_not_#in~cond#1, ~s~0] [2022-12-06 00:07:29,404 ERROR L112 fgCompositionFactory]: Composing non-subsequent actions: [740] L45-->L52: Formula: (and (not (= |v_thread1Thread1of1ForFork5_assume_abort_if_not_~cond#1_33| 0)) (= v_~x~0_169 1) (= (ite (<= v_~m1~0_47 v_~s~0_719) 1 0) |v_thread1Thread1of1ForFork5_assume_abort_if_not_#in~cond#1_33|) (= |v_thread1Thread1of1ForFork5_assume_abort_if_not_~cond#1_33| |v_thread1Thread1of1ForFork5_assume_abort_if_not_#in~cond#1_33|)) InVars {~m1~0=v_~m1~0_47, ~s~0=v_~s~0_719} OutVars{thread1Thread1of1ForFork5_assume_abort_if_not_~cond#1=|v_thread1Thread1of1ForFork5_assume_abort_if_not_~cond#1_33|, ~m1~0=v_~m1~0_47, thread1Thread1of1ForFork5_assume_abort_if_not_#in~cond#1=|v_thread1Thread1of1ForFork5_assume_abort_if_not_#in~cond#1_33|, ~x~0=v_~x~0_169, ~s~0=v_~s~0_719} AuxVars[] AssignedVars[thread1Thread1of1ForFork5_assume_abort_if_not_~cond#1, thread1Thread1of1ForFork5_assume_abort_if_not_#in~cond#1, ~x~0] and [692] L143-->thread6EXIT: Formula: (and (= |v_thread6Thread1of1ForFork4_assume_abort_if_not_#in~cond#1_19| (ite (<= v_~m6~0_33 v_~s~0_354) 1 0)) (= (+ v_~s~0_354 1) v_~s~0_353) (= |v_thread6Thread1of1ForFork4_#res#1.offset_43| 0) (not (= |v_thread6Thread1of1ForFork4_assume_abort_if_not_~cond#1_19| 0)) (= (ite (= (ite (or (not (= (mod v_~b~0_76 256) 0)) (= v_~x~0_46 1)) 1 0) 0) 0 1) v_~b~0_75) (= |v_thread6Thread1of1ForFork4_#res#1.base_43| 0) (= |v_thread6Thread1of1ForFork4_assume_abort_if_not_~cond#1_19| |v_thread6Thread1of1ForFork4_assume_abort_if_not_#in~cond#1_19|)) InVars {~b~0=v_~b~0_76, ~m6~0=v_~m6~0_33, ~x~0=v_~x~0_46, ~s~0=v_~s~0_354} OutVars{thread6Thread1of1ForFork4_#res#1.base=|v_thread6Thread1of1ForFork4_#res#1.base_43|, thread6Thread1of1ForFork4_#t~post12#1=|v_thread6Thread1of1ForFork4_#t~post12#1_45|, thread6Thread1of1ForFork4_assume_abort_if_not_~cond#1=|v_thread6Thread1of1ForFork4_assume_abort_if_not_~cond#1_19|, ~b~0=v_~b~0_75, ~m6~0=v_~m6~0_33, thread6Thread1of1ForFork4_#res#1.offset=|v_thread6Thread1of1ForFork4_#res#1.offset_43|, thread6Thread1of1ForFork4_assume_abort_if_not_#in~cond#1=|v_thread6Thread1of1ForFork4_assume_abort_if_not_#in~cond#1_19|, ~x~0=v_~x~0_46, ~s~0=v_~s~0_353} AuxVars[] AssignedVars[thread6Thread1of1ForFork4_#res#1.base, thread6Thread1of1ForFork4_#t~post12#1, thread6Thread1of1ForFork4_assume_abort_if_not_~cond#1, ~b~0, thread6Thread1of1ForFork4_#res#1.offset, thread6Thread1of1ForFork4_assume_abort_if_not_#in~cond#1, ~s~0] [2022-12-06 00:07:29,468 ERROR L112 fgCompositionFactory]: Composing non-subsequent actions: [740] L45-->L52: Formula: (and (not (= |v_thread1Thread1of1ForFork5_assume_abort_if_not_~cond#1_33| 0)) (= v_~x~0_169 1) (= (ite (<= v_~m1~0_47 v_~s~0_719) 1 0) |v_thread1Thread1of1ForFork5_assume_abort_if_not_#in~cond#1_33|) (= |v_thread1Thread1of1ForFork5_assume_abort_if_not_~cond#1_33| |v_thread1Thread1of1ForFork5_assume_abort_if_not_#in~cond#1_33|)) InVars {~m1~0=v_~m1~0_47, ~s~0=v_~s~0_719} OutVars{thread1Thread1of1ForFork5_assume_abort_if_not_~cond#1=|v_thread1Thread1of1ForFork5_assume_abort_if_not_~cond#1_33|, ~m1~0=v_~m1~0_47, thread1Thread1of1ForFork5_assume_abort_if_not_#in~cond#1=|v_thread1Thread1of1ForFork5_assume_abort_if_not_#in~cond#1_33|, ~x~0=v_~x~0_169, ~s~0=v_~s~0_719} AuxVars[] AssignedVars[thread1Thread1of1ForFork5_assume_abort_if_not_~cond#1, thread1Thread1of1ForFork5_assume_abort_if_not_#in~cond#1, ~x~0] and [776] L86-->thread3EXIT: Formula: (and (= |v_thread3Thread1of1ForFork3_assume_abort_if_not_#in~cond#1_55| |v_thread3Thread1of1ForFork3_assume_abort_if_not_~cond#1_55|) (= (+ v_~s~0_874 1) v_~s~0_873) (= (ite (<= v_~m3~0_87 v_~s~0_874) 1 0) |v_thread3Thread1of1ForFork3_assume_abort_if_not_#in~cond#1_55|) (= |v_thread3Thread1of1ForFork3_#res#1.base_7| 0) (not (= |v_thread3Thread1of1ForFork3_assume_abort_if_not_~cond#1_55| 0)) (= v_~b~0_381 (ite (= (ite (or (= v_~x~0_244 1) (not (= (mod v_~b~0_382 256) 0))) 1 0) 0) 0 1)) (= |v_thread3Thread1of1ForFork3_#res#1.offset_7| 0)) InVars {~m3~0=v_~m3~0_87, ~b~0=v_~b~0_382, ~x~0=v_~x~0_244, ~s~0=v_~s~0_874} OutVars{~m3~0=v_~m3~0_87, thread3Thread1of1ForFork3_#res#1.offset=|v_thread3Thread1of1ForFork3_#res#1.offset_7|, thread3Thread1of1ForFork3_#res#1.base=|v_thread3Thread1of1ForFork3_#res#1.base_7|, ~b~0=v_~b~0_381, thread3Thread1of1ForFork3_assume_abort_if_not_~cond#1=|v_thread3Thread1of1ForFork3_assume_abort_if_not_~cond#1_55|, ~x~0=v_~x~0_244, thread3Thread1of1ForFork3_assume_abort_if_not_#in~cond#1=|v_thread3Thread1of1ForFork3_assume_abort_if_not_#in~cond#1_55|, thread3Thread1of1ForFork3_#t~post6#1=|v_thread3Thread1of1ForFork3_#t~post6#1_57|, ~s~0=v_~s~0_873} AuxVars[] AssignedVars[thread3Thread1of1ForFork3_#res#1.offset, thread3Thread1of1ForFork3_#res#1.base, ~b~0, thread3Thread1of1ForFork3_assume_abort_if_not_~cond#1, thread3Thread1of1ForFork3_assume_abort_if_not_#in~cond#1, thread3Thread1of1ForFork3_#t~post6#1, ~s~0] [2022-12-06 00:07:29,537 ERROR L112 fgCompositionFactory]: Composing non-subsequent actions: [740] L45-->L52: Formula: (and (not (= |v_thread1Thread1of1ForFork5_assume_abort_if_not_~cond#1_33| 0)) (= v_~x~0_169 1) (= (ite (<= v_~m1~0_47 v_~s~0_719) 1 0) |v_thread1Thread1of1ForFork5_assume_abort_if_not_#in~cond#1_33|) (= |v_thread1Thread1of1ForFork5_assume_abort_if_not_~cond#1_33| |v_thread1Thread1of1ForFork5_assume_abort_if_not_#in~cond#1_33|)) InVars {~m1~0=v_~m1~0_47, ~s~0=v_~s~0_719} OutVars{thread1Thread1of1ForFork5_assume_abort_if_not_~cond#1=|v_thread1Thread1of1ForFork5_assume_abort_if_not_~cond#1_33|, ~m1~0=v_~m1~0_47, thread1Thread1of1ForFork5_assume_abort_if_not_#in~cond#1=|v_thread1Thread1of1ForFork5_assume_abort_if_not_#in~cond#1_33|, ~x~0=v_~x~0_169, ~s~0=v_~s~0_719} AuxVars[] AssignedVars[thread1Thread1of1ForFork5_assume_abort_if_not_~cond#1, thread1Thread1of1ForFork5_assume_abort_if_not_#in~cond#1, ~x~0] and [770] L124-->thread5EXIT: Formula: (and (= (ite (<= v_~m5~0_79 v_~s~0_860) 1 0) |v_thread5Thread1of1ForFork2_assume_abort_if_not_#in~cond#1_43|) (= |v_thread5Thread1of1ForFork2_#res#1.base_7| 0) (= |v_thread5Thread1of1ForFork2_assume_abort_if_not_~cond#1_43| |v_thread5Thread1of1ForFork2_assume_abort_if_not_#in~cond#1_43|) (= (+ v_~s~0_860 1) v_~s~0_859) (not (= |v_thread5Thread1of1ForFork2_assume_abort_if_not_~cond#1_43| 0)) (= (ite (= (ite (or (= v_~x~0_235 1) (not (= (mod v_~b~0_370 256) 0))) 1 0) 0) 0 1) v_~b~0_369) (= |v_thread5Thread1of1ForFork2_#res#1.offset_7| 0)) InVars {~b~0=v_~b~0_370, ~m5~0=v_~m5~0_79, ~x~0=v_~x~0_235, ~s~0=v_~s~0_860} OutVars{thread5Thread1of1ForFork2_#res#1.offset=|v_thread5Thread1of1ForFork2_#res#1.offset_7|, thread5Thread1of1ForFork2_assume_abort_if_not_#in~cond#1=|v_thread5Thread1of1ForFork2_assume_abort_if_not_#in~cond#1_43|, ~b~0=v_~b~0_369, ~m5~0=v_~m5~0_79, thread5Thread1of1ForFork2_assume_abort_if_not_~cond#1=|v_thread5Thread1of1ForFork2_assume_abort_if_not_~cond#1_43|, ~x~0=v_~x~0_235, thread5Thread1of1ForFork2_#res#1.base=|v_thread5Thread1of1ForFork2_#res#1.base_7|, thread5Thread1of1ForFork2_#t~post10#1=|v_thread5Thread1of1ForFork2_#t~post10#1_49|, ~s~0=v_~s~0_859} AuxVars[] AssignedVars[thread5Thread1of1ForFork2_#res#1.offset, thread5Thread1of1ForFork2_assume_abort_if_not_#in~cond#1, ~b~0, thread5Thread1of1ForFork2_assume_abort_if_not_~cond#1, thread5Thread1of1ForFork2_#res#1.base, thread5Thread1of1ForFork2_#t~post10#1, ~s~0] [2022-12-06 00:07:29,600 ERROR L112 fgCompositionFactory]: Composing non-subsequent actions: [740] L45-->L52: Formula: (and (not (= |v_thread1Thread1of1ForFork5_assume_abort_if_not_~cond#1_33| 0)) (= v_~x~0_169 1) (= (ite (<= v_~m1~0_47 v_~s~0_719) 1 0) |v_thread1Thread1of1ForFork5_assume_abort_if_not_#in~cond#1_33|) (= |v_thread1Thread1of1ForFork5_assume_abort_if_not_~cond#1_33| |v_thread1Thread1of1ForFork5_assume_abort_if_not_#in~cond#1_33|)) InVars {~m1~0=v_~m1~0_47, ~s~0=v_~s~0_719} OutVars{thread1Thread1of1ForFork5_assume_abort_if_not_~cond#1=|v_thread1Thread1of1ForFork5_assume_abort_if_not_~cond#1_33|, ~m1~0=v_~m1~0_47, thread1Thread1of1ForFork5_assume_abort_if_not_#in~cond#1=|v_thread1Thread1of1ForFork5_assume_abort_if_not_#in~cond#1_33|, ~x~0=v_~x~0_169, ~s~0=v_~s~0_719} AuxVars[] AssignedVars[thread1Thread1of1ForFork5_assume_abort_if_not_~cond#1, thread1Thread1of1ForFork5_assume_abort_if_not_#in~cond#1, ~x~0] and [768] L162-->thread7EXIT: Formula: (and (= (+ v_~s~0_850 1) v_~s~0_849) (= |v_thread7Thread1of1ForFork0_assume_abort_if_not_#in~cond#1_35| (ite (<= v_~m7~0_59 v_~s~0_850) 1 0)) (= |v_thread7Thread1of1ForFork0_#res#1.offset_7| 0) (= |v_thread7Thread1of1ForFork0_#res#1.base_7| 0) (not (= |v_thread7Thread1of1ForFork0_assume_abort_if_not_~cond#1_35| 0)) (= |v_thread7Thread1of1ForFork0_assume_abort_if_not_~cond#1_35| |v_thread7Thread1of1ForFork0_assume_abort_if_not_#in~cond#1_35|) (= v_~b~0_361 (ite (= (ite (or (not (= (mod v_~b~0_362 256) 0)) (= v_~x~0_230 1)) 1 0) 0) 0 1))) InVars {~b~0=v_~b~0_362, ~m7~0=v_~m7~0_59, ~x~0=v_~x~0_230, ~s~0=v_~s~0_850} OutVars{thread7Thread1of1ForFork0_assume_abort_if_not_~cond#1=|v_thread7Thread1of1ForFork0_assume_abort_if_not_~cond#1_35|, thread7Thread1of1ForFork0_#res#1.base=|v_thread7Thread1of1ForFork0_#res#1.base_7|, ~b~0=v_~b~0_361, thread7Thread1of1ForFork0_assume_abort_if_not_#in~cond#1=|v_thread7Thread1of1ForFork0_assume_abort_if_not_#in~cond#1_35|, ~m7~0=v_~m7~0_59, thread7Thread1of1ForFork0_#res#1.offset=|v_thread7Thread1of1ForFork0_#res#1.offset_7|, ~x~0=v_~x~0_230, thread7Thread1of1ForFork0_#t~post14#1=|v_thread7Thread1of1ForFork0_#t~post14#1_57|, ~s~0=v_~s~0_849} AuxVars[] AssignedVars[thread7Thread1of1ForFork0_assume_abort_if_not_~cond#1, thread7Thread1of1ForFork0_#res#1.base, ~b~0, thread7Thread1of1ForFork0_assume_abort_if_not_#in~cond#1, thread7Thread1of1ForFork0_#res#1.offset, thread7Thread1of1ForFork0_#t~post14#1, ~s~0] [2022-12-06 00:07:29,696 INFO L203 LiptonReduction]: Total number of compositions: 2 [2022-12-06 00:07:29,698 INFO L143 eatedLiptonReduction]: Time needed for LBE in milliseconds: 1403 [2022-12-06 00:07:29,698 INFO L495 AbstractCegarLoop]: Abstraction has has 63 places, 76 transitions, 322 flow [2022-12-06 00:07:29,698 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 6.285714285714286) internal successors, (44), 7 states have internal predecessors, (44), 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 00:07:29,698 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 00:07:29,698 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 00:07:29,698 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-06 00:07:29,699 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 5 more)] === [2022-12-06 00:07:29,699 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 00:07:29,699 INFO L85 PathProgramCache]: Analyzing trace with hash 1183584736, now seen corresponding path program 2 times [2022-12-06 00:07:29,699 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 00:07:29,699 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2122827187] [2022-12-06 00:07:29,699 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 00:07:29,699 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 00:07:29,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 00:07:30,857 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 00:07:30,858 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 00:07:30,858 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2122827187] [2022-12-06 00:07:30,858 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2122827187] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 00:07:30,858 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 00:07:30,858 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-12-06 00:07:30,858 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1196647125] [2022-12-06 00:07:30,858 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 00:07:30,859 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-12-06 00:07:30,859 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 00:07:30,859 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-12-06 00:07:30,860 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=151, Unknown=0, NotChecked=0, Total=210 [2022-12-06 00:07:30,860 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 0 out of 51 [2022-12-06 00:07:30,860 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 63 places, 76 transitions, 322 flow. Second operand has 15 states, 14 states have (on average 3.142857142857143) internal successors, (44), 14 states have internal predecessors, (44), 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 00:07:30,860 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 00:07:30,860 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 0 of 51 [2022-12-06 00:07:30,860 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 00:07:40,778 INFO L130 PetriNetUnfolder]: 111160/140676 cut-off events. [2022-12-06 00:07:40,779 INFO L131 PetriNetUnfolder]: For 79925/79925 co-relation queries the response was YES. [2022-12-06 00:07:41,041 INFO L83 FinitePrefix]: Finished finitePrefix Result has 414704 conditions, 140676 events. 111160/140676 cut-off events. For 79925/79925 co-relation queries the response was YES. Maximal size of possible extension queue 3533. Compared 743722 event pairs, 12048 based on Foata normal form. 5/140681 useless extension candidates. Maximal degree in co-relation 414691. Up to 53075 conditions per place. [2022-12-06 00:07:41,378 INFO L137 encePairwiseOnDemand]: 27/51 looper letters, 225 selfloop transitions, 385 changer transitions 251/861 dead transitions. [2022-12-06 00:07:41,379 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 91 places, 861 transitions, 4865 flow [2022-12-06 00:07:41,379 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-12-06 00:07:41,379 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29 states. [2022-12-06 00:07:41,381 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 738 transitions. [2022-12-06 00:07:41,382 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.49898580121703856 [2022-12-06 00:07:41,382 INFO L175 Difference]: Start difference. First operand has 63 places, 76 transitions, 322 flow. Second operand 29 states and 738 transitions. [2022-12-06 00:07:41,382 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 91 places, 861 transitions, 4865 flow [2022-12-06 00:07:42,706 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 88 places, 861 transitions, 4793 flow, removed 36 selfloop flow, removed 3 redundant places. [2022-12-06 00:07:42,713 INFO L231 Difference]: Finished difference. Result has 94 places, 458 transitions, 2986 flow [2022-12-06 00:07:42,714 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=51, PETRI_DIFFERENCE_MINUEND_FLOW=302, PETRI_DIFFERENCE_MINUEND_PLACES=60, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=76, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=47, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=29, PETRI_DIFFERENCE_SUBTRAHEND_STATES=29, PETRI_FLOW=2986, PETRI_PLACES=94, PETRI_TRANSITIONS=458} [2022-12-06 00:07:42,714 INFO L294 CegarLoopForPetriNet]: 66 programPoint places, 28 predicate places. [2022-12-06 00:07:42,714 WARN L163 eatedLiptonReduction]: Counterexample is not a run of mAbstraction. Replaying acceptance of the word... [2022-12-06 00:07:42,714 INFO L89 Accepts]: Start accepts. Operand has 94 places, 458 transitions, 2986 flow [2022-12-06 00:07:42,716 INFO L95 Accepts]: Finished accepts. [2022-12-06 00:07:42,716 INFO L195 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-06 00:07:42,717 INFO L167 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 94 places, 458 transitions, 2986 flow [2022-12-06 00:07:42,718 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 94 places, 458 transitions, 2986 flow [2022-12-06 00:07:44,327 INFO L130 PetriNetUnfolder]: 16341/23748 cut-off events. [2022-12-06 00:07:44,328 INFO L131 PetriNetUnfolder]: For 17928/30274 co-relation queries the response was YES. [2022-12-06 00:07:44,384 INFO L83 FinitePrefix]: Finished finitePrefix Result has 72974 conditions, 23748 events. 16341/23748 cut-off events. For 17928/30274 co-relation queries the response was YES. Maximal size of possible extension queue 1303. Compared 156450 event pairs, 1187 based on Foata normal form. 0/23502 useless extension candidates. Maximal degree in co-relation 70670. Up to 8931 conditions per place. [2022-12-06 00:07:44,512 INFO L184 LiptonReduction]: Starting Lipton reduction on Petri net that has 94 places, 458 transitions, 2986 flow [2022-12-06 00:07:44,513 INFO L188 LiptonReduction]: Number of co-enabled transitions 2902 [2022-12-06 00:07:44,858 ERROR L112 fgCompositionFactory]: Composing non-subsequent actions: [623] $Ultimate##0-->L162: Formula: (and (= (+ v_~t~0_90 1) v_~t~0_89) (= v_~m7~0_11 v_~t~0_90)) InVars {~t~0=v_~t~0_90} OutVars{thread7Thread1of1ForFork0_#t~post13#1=|v_thread7Thread1of1ForFork0_#t~post13#1_1|, ~m7~0=v_~m7~0_11, ~t~0=v_~t~0_89} AuxVars[] AssignedVars[thread7Thread1of1ForFork0_#t~post13#1, ~m7~0, ~t~0] and [617] $Ultimate##0-->L143: Formula: (and (= v_~m6~0_5 v_~t~0_74) (= v_~t~0_73 (+ v_~t~0_74 1))) InVars {~t~0=v_~t~0_74} OutVars{thread6Thread1of1ForFork4_#t~post11#1=|v_thread6Thread1of1ForFork4_#t~post11#1_1|, ~m6~0=v_~m6~0_5, ~t~0=v_~t~0_73} AuxVars[] AssignedVars[thread6Thread1of1ForFork4_#t~post11#1, ~m6~0, ~t~0] [2022-12-06 00:07:44,871 ERROR L112 fgCompositionFactory]: Composing non-subsequent actions: [623] $Ultimate##0-->L162: Formula: (and (= (+ v_~t~0_90 1) v_~t~0_89) (= v_~m7~0_11 v_~t~0_90)) InVars {~t~0=v_~t~0_90} OutVars{thread7Thread1of1ForFork0_#t~post13#1=|v_thread7Thread1of1ForFork0_#t~post13#1_1|, ~m7~0=v_~m7~0_11, ~t~0=v_~t~0_89} AuxVars[] AssignedVars[thread7Thread1of1ForFork0_#t~post13#1, ~m7~0, ~t~0] and [599] $Ultimate##0-->L86: Formula: (and (= (+ v_~t~0_78 1) v_~t~0_77) (= v_~m3~0_9 v_~t~0_78)) InVars {~t~0=v_~t~0_78} OutVars{~m3~0=v_~m3~0_9, thread3Thread1of1ForFork3_#t~post5#1=|v_thread3Thread1of1ForFork3_#t~post5#1_1|, ~t~0=v_~t~0_77} AuxVars[] AssignedVars[~m3~0, thread3Thread1of1ForFork3_#t~post5#1, ~t~0] [2022-12-06 00:07:44,885 ERROR L112 fgCompositionFactory]: Composing non-subsequent actions: [623] $Ultimate##0-->L162: Formula: (and (= (+ v_~t~0_90 1) v_~t~0_89) (= v_~m7~0_11 v_~t~0_90)) InVars {~t~0=v_~t~0_90} OutVars{thread7Thread1of1ForFork0_#t~post13#1=|v_thread7Thread1of1ForFork0_#t~post13#1_1|, ~m7~0=v_~m7~0_11, ~t~0=v_~t~0_89} AuxVars[] AssignedVars[thread7Thread1of1ForFork0_#t~post13#1, ~m7~0, ~t~0] and [593] $Ultimate##0-->L67: Formula: (and (= v_~m2~0_13 v_~t~0_82) (= (+ v_~t~0_82 1) v_~t~0_81)) InVars {~t~0=v_~t~0_82} OutVars{thread2Thread1of1ForFork1_#t~post3#1=|v_thread2Thread1of1ForFork1_#t~post3#1_1|, ~m2~0=v_~m2~0_13, ~t~0=v_~t~0_81} AuxVars[] AssignedVars[~m2~0, thread2Thread1of1ForFork1_#t~post3#1, ~t~0] [2022-12-06 00:07:44,900 ERROR L112 fgCompositionFactory]: Composing non-subsequent actions: [623] $Ultimate##0-->L162: Formula: (and (= (+ v_~t~0_90 1) v_~t~0_89) (= v_~m7~0_11 v_~t~0_90)) InVars {~t~0=v_~t~0_90} OutVars{thread7Thread1of1ForFork0_#t~post13#1=|v_thread7Thread1of1ForFork0_#t~post13#1_1|, ~m7~0=v_~m7~0_11, ~t~0=v_~t~0_89} AuxVars[] AssignedVars[thread7Thread1of1ForFork0_#t~post13#1, ~m7~0, ~t~0] and [605] $Ultimate##0-->L105: Formula: (and (= v_~m4~0_9 v_~t~0_94) (= v_~t~0_93 (+ v_~t~0_94 1))) InVars {~t~0=v_~t~0_94} OutVars{thread4Thread1of1ForFork6_#t~post7#1=|v_thread4Thread1of1ForFork6_#t~post7#1_1|, ~m4~0=v_~m4~0_9, ~t~0=v_~t~0_93} AuxVars[] AssignedVars[~m4~0, thread4Thread1of1ForFork6_#t~post7#1, ~t~0] [2022-12-06 00:07:44,915 ERROR L112 fgCompositionFactory]: Composing non-subsequent actions: [623] $Ultimate##0-->L162: Formula: (and (= (+ v_~t~0_90 1) v_~t~0_89) (= v_~m7~0_11 v_~t~0_90)) InVars {~t~0=v_~t~0_90} OutVars{thread7Thread1of1ForFork0_#t~post13#1=|v_thread7Thread1of1ForFork0_#t~post13#1_1|, ~m7~0=v_~m7~0_11, ~t~0=v_~t~0_89} AuxVars[] AssignedVars[thread7Thread1of1ForFork0_#t~post13#1, ~m7~0, ~t~0] and [611] $Ultimate##0-->L124: Formula: (and (= (+ v_~t~0_66 1) v_~t~0_65) (= v_~m5~0_7 v_~t~0_66)) InVars {~t~0=v_~t~0_66} OutVars{thread5Thread1of1ForFork2_#t~post9#1=|v_thread5Thread1of1ForFork2_#t~post9#1_1|, ~m5~0=v_~m5~0_7, ~t~0=v_~t~0_65} AuxVars[] AssignedVars[thread5Thread1of1ForFork2_#t~post9#1, ~m5~0, ~t~0] [2022-12-06 00:07:44,929 ERROR L112 fgCompositionFactory]: Composing non-subsequent actions: [623] $Ultimate##0-->L162: Formula: (and (= (+ v_~t~0_90 1) v_~t~0_89) (= v_~m7~0_11 v_~t~0_90)) InVars {~t~0=v_~t~0_90} OutVars{thread7Thread1of1ForFork0_#t~post13#1=|v_thread7Thread1of1ForFork0_#t~post13#1_1|, ~m7~0=v_~m7~0_11, ~t~0=v_~t~0_89} AuxVars[] AssignedVars[thread7Thread1of1ForFork0_#t~post13#1, ~m7~0, ~t~0] and [586] $Ultimate##0-->L45: Formula: (and (= v_~t~0_69 (+ v_~t~0_70 1)) (= v_~m1~0_9 v_~t~0_70)) InVars {~t~0=v_~t~0_70} OutVars{~m1~0=v_~m1~0_9, thread1Thread1of1ForFork5_#t~post1#1=|v_thread1Thread1of1ForFork5_#t~post1#1_1|, ~t~0=v_~t~0_69} AuxVars[] AssignedVars[~m1~0, thread1Thread1of1ForFork5_#t~post1#1, ~t~0] [2022-12-06 00:07:45,256 INFO L203 LiptonReduction]: Total number of compositions: 1 [2022-12-06 00:07:45,257 INFO L143 eatedLiptonReduction]: Time needed for LBE in milliseconds: 2543 [2022-12-06 00:07:45,258 INFO L495 AbstractCegarLoop]: Abstraction has has 93 places, 457 transitions, 3007 flow [2022-12-06 00:07:45,258 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 3.142857142857143) internal successors, (44), 14 states have internal predecessors, (44), 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 00:07:45,258 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 00:07:45,258 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] [2022-12-06 00:07:45,258 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-06 00:07:45,258 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 5 more)] === [2022-12-06 00:07:45,258 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 00:07:45,258 INFO L85 PathProgramCache]: Analyzing trace with hash 1407564012, now seen corresponding path program 1 times [2022-12-06 00:07:45,259 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 00:07:45,259 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1698793488] [2022-12-06 00:07:45,259 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 00:07:45,259 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 00:07:45,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 00:07:45,469 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 00:07:45,469 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 00:07:45,469 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1698793488] [2022-12-06 00:07:45,472 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1698793488] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 00:07:45,472 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 00:07:45,472 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-06 00:07:45,472 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [464209666] [2022-12-06 00:07:45,472 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 00:07:45,473 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-06 00:07:45,473 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 00:07:45,473 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-06 00:07:45,474 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-12-06 00:07:45,474 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 0 out of 57 [2022-12-06 00:07:45,474 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 93 places, 457 transitions, 3007 flow. Second operand has 5 states, 5 states have (on average 8.4) internal successors, (42), 4 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 00:07:45,474 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 00:07:45,474 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 0 of 57 [2022-12-06 00:07:45,474 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 00:08:04,221 INFO L130 PetriNetUnfolder]: 191762/241214 cut-off events. [2022-12-06 00:08:04,221 INFO L131 PetriNetUnfolder]: For 273598/273598 co-relation queries the response was YES. [2022-12-06 00:08:04,751 INFO L83 FinitePrefix]: Finished finitePrefix Result has 945160 conditions, 241214 events. 191762/241214 cut-off events. For 273598/273598 co-relation queries the response was YES. Maximal size of possible extension queue 7036. Compared 1343207 event pairs, 19144 based on Foata normal form. 3806/245020 useless extension candidates. Maximal degree in co-relation 920658. Up to 107194 conditions per place. [2022-12-06 00:08:05,694 INFO L137 encePairwiseOnDemand]: 29/57 looper letters, 560 selfloop transitions, 618 changer transitions 0/1178 dead transitions. [2022-12-06 00:08:05,694 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 97 places, 1178 transitions, 9867 flow [2022-12-06 00:08:05,695 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-06 00:08:05,695 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-12-06 00:08:05,695 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 175 transitions. [2022-12-06 00:08:05,695 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.6140350877192983 [2022-12-06 00:08:05,695 INFO L175 Difference]: Start difference. First operand has 93 places, 457 transitions, 3007 flow. Second operand 5 states and 175 transitions. [2022-12-06 00:08:05,695 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 97 places, 1178 transitions, 9867 flow [2022-12-06 00:08:48,972 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 91 places, 1178 transitions, 8535 flow, removed 576 selfloop flow, removed 6 redundant places. [2022-12-06 00:08:48,983 INFO L231 Difference]: Finished difference. Result has 94 places, 954 transitions, 8154 flow [2022-12-06 00:08:48,984 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=57, PETRI_DIFFERENCE_MINUEND_FLOW=2402, PETRI_DIFFERENCE_MINUEND_PLACES=87, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=452, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=251, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=113, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=8154, PETRI_PLACES=94, PETRI_TRANSITIONS=954} [2022-12-06 00:08:48,984 INFO L294 CegarLoopForPetriNet]: 66 programPoint places, 28 predicate places. [2022-12-06 00:08:48,984 WARN L163 eatedLiptonReduction]: Counterexample is not a run of mAbstraction. Replaying acceptance of the word... [2022-12-06 00:08:48,985 INFO L89 Accepts]: Start accepts. Operand has 94 places, 954 transitions, 8154 flow [2022-12-06 00:08:48,987 INFO L95 Accepts]: Finished accepts. [2022-12-06 00:08:48,987 INFO L195 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-06 00:08:48,987 INFO L167 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 94 places, 954 transitions, 8154 flow [2022-12-06 00:08:48,992 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 94 places, 954 transitions, 8154 flow [2022-12-06 00:08:54,648 INFO L130 PetriNetUnfolder]: 51969/70353 cut-off events. [2022-12-06 00:08:54,649 INFO L131 PetriNetUnfolder]: For 66490/161306 co-relation queries the response was YES. [2022-12-06 00:08:54,809 INFO L83 FinitePrefix]: Finished finitePrefix Result has 279312 conditions, 70353 events. 51969/70353 cut-off events. For 66490/161306 co-relation queries the response was YES. Maximal size of possible extension queue 3897. Compared 443774 event pairs, 2973 based on Foata normal form. 5/69800 useless extension candidates. Maximal degree in co-relation 275691. Up to 37599 conditions per place. [2022-12-06 00:08:55,184 INFO L184 LiptonReduction]: Starting Lipton reduction on Petri net that has 94 places, 954 transitions, 8154 flow [2022-12-06 00:08:55,184 INFO L188 LiptonReduction]: Number of co-enabled transitions 5874 [2022-12-06 00:08:55,202 INFO L203 LiptonReduction]: Total number of compositions: 0 [2022-12-06 00:08:55,203 INFO L143 eatedLiptonReduction]: Time needed for LBE in milliseconds: 6219 [2022-12-06 00:08:55,203 INFO L495 AbstractCegarLoop]: Abstraction has has 94 places, 954 transitions, 8154 flow [2022-12-06 00:08:55,203 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.4) internal successors, (42), 4 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 00:08:55,203 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 00:08:55,203 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] [2022-12-06 00:08:55,204 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-06 00:08:55,204 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 5 more)] === [2022-12-06 00:08:55,204 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 00:08:55,204 INFO L85 PathProgramCache]: Analyzing trace with hash 2127855881, now seen corresponding path program 1 times [2022-12-06 00:08:55,204 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 00:08:55,204 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1180376229] [2022-12-06 00:08:55,204 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 00:08:55,204 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 00:08:55,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 00:08:55,382 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 00:08:55,382 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 00:08:55,382 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1180376229] [2022-12-06 00:08:55,382 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1180376229] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 00:08:55,382 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 00:08:55,383 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-06 00:08:55,383 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1884618934] [2022-12-06 00:08:55,384 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 00:08:55,386 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-06 00:08:55,386 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 00:08:55,387 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-06 00:08:55,387 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-06 00:08:55,387 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 0 out of 57 [2022-12-06 00:08:55,387 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 94 places, 954 transitions, 8154 flow. Second operand has 4 states, 4 states have (on average 10.5) internal successors, (42), 3 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 00:08:55,387 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 00:08:55,387 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 0 of 57 [2022-12-06 00:08:55,387 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand