/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-SemanticLbe.epf --traceabstraction.use.on-demand.petri.net.difference true -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread-wmm/mix044_power.oepc_pso.oepc_rmo.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.repeated-lipton-a802222-m [2022-12-12 18:37:44,766 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-12 18:37:44,767 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-12 18:37:44,790 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-12 18:37:44,790 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-12 18:37:44,791 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-12 18:37:44,798 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-12 18:37:44,801 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-12 18:37:44,802 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-12 18:37:44,803 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-12 18:37:44,803 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-12 18:37:44,805 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-12 18:37:44,805 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-12 18:37:44,809 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-12 18:37:44,810 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-12 18:37:44,811 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-12 18:37:44,811 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-12 18:37:44,813 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-12 18:37:44,815 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-12 18:37:44,818 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-12 18:37:44,819 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-12 18:37:44,820 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-12 18:37:44,820 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-12 18:37:44,821 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-12 18:37:44,823 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-12 18:37:44,823 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-12 18:37:44,823 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-12 18:37:44,824 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-12 18:37:44,824 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-12 18:37:44,825 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-12 18:37:44,825 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-12 18:37:44,825 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-12 18:37:44,826 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-12 18:37:44,826 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-12 18:37:44,827 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-12 18:37:44,827 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-12 18:37:44,828 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-12 18:37:44,828 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-12 18:37:44,828 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-12 18:37:44,828 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-12 18:37:44,829 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-12 18:37:44,833 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-SemanticLbe.epf [2022-12-12 18:37:44,856 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-12 18:37:44,857 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-12 18:37:44,858 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-12 18:37:44,858 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-12 18:37:44,858 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-12 18:37:44,859 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-12 18:37:44,859 INFO L138 SettingsManager]: * Use SBE=true [2022-12-12 18:37:44,859 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-12 18:37:44,859 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-12 18:37:44,859 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-12 18:37:44,860 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-12 18:37:44,860 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-12 18:37:44,860 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-12 18:37:44,860 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-12 18:37:44,860 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-12 18:37:44,861 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-12 18:37:44,861 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-12 18:37:44,861 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-12 18:37:44,861 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-12 18:37:44,861 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-12 18:37:44,861 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-12 18:37:44,861 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-12-12 18:37:44,861 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-12 18:37:44,861 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-12 18:37:44,861 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-12 18:37:44,862 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-12 18:37:44,862 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-12 18:37:44,862 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-12 18:37:44,862 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-12 18:37:44,862 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-12 18:37:44,862 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use on-demand Petri net difference -> true [2022-12-12 18:37:45,149 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-12 18:37:45,173 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-12 18:37:45,175 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-12 18:37:45,176 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-12 18:37:45,176 INFO L275 PluginConnector]: CDTParser initialized [2022-12-12 18:37:45,177 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/mix044_power.oepc_pso.oepc_rmo.oepc.i [2022-12-12 18:37:46,313 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-12 18:37:46,547 INFO L351 CDTParser]: Found 1 translation units. [2022-12-12 18:37:46,548 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/mix044_power.oepc_pso.oepc_rmo.oepc.i [2022-12-12 18:37:46,565 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ad5c72e60/98088702ab6f4eb59825fd1c5dc3397f/FLAGfb96cc812 [2022-12-12 18:37:46,578 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ad5c72e60/98088702ab6f4eb59825fd1c5dc3397f [2022-12-12 18:37:46,580 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-12 18:37:46,581 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-12-12 18:37:46,581 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-12 18:37:46,582 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-12 18:37:46,583 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-12 18:37:46,584 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.12 06:37:46" (1/1) ... [2022-12-12 18:37:46,585 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6db832f8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 06:37:46, skipping insertion in model container [2022-12-12 18:37:46,585 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.12 06:37:46" (1/1) ... [2022-12-12 18:37:46,589 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-12 18:37:46,636 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-12 18:37:46,740 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/mix044_power.oepc_pso.oepc_rmo.oepc.i[969,982] [2022-12-12 18:37:46,863 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 18:37:46,866 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 18:37:46,867 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 18:37:46,867 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 18:37:46,867 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 18:37:46,872 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 18:37:46,872 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 18:37:46,872 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 18:37:46,873 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 18:37:46,873 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 18:37:46,873 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 18:37:46,874 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 18:37:46,874 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 18:37:46,879 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 18:37:46,879 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 18:37:46,879 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 18:37:46,883 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 18:37:46,883 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 18:37:46,883 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 18:37:46,883 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 18:37:46,883 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 18:37:46,887 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 18:37:46,888 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 18:37:46,888 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 18:37:46,889 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 18:37:46,890 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 18:37:46,890 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 18:37:46,890 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 18:37:46,891 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 18:37:46,891 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 18:37:46,891 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 18:37:46,907 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 18:37:46,907 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 18:37:46,908 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 18:37:46,909 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 18:37:46,909 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 18:37:46,917 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 18:37:46,918 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 18:37:46,918 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 18:37:46,924 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 18:37:46,924 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 18:37:46,926 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 18:37:46,926 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-12 18:37:46,935 INFO L203 MainTranslator]: Completed pre-run [2022-12-12 18:37:46,944 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/mix044_power.oepc_pso.oepc_rmo.oepc.i[969,982] [2022-12-12 18:37:46,966 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 18:37:46,967 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 18:37:46,967 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 18:37:46,967 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 18:37:46,967 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 18:37:46,968 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 18:37:46,968 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 18:37:46,969 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 18:37:46,969 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 18:37:46,969 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 18:37:46,969 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 18:37:46,969 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 18:37:46,969 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 18:37:46,970 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 18:37:46,971 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 18:37:46,971 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 18:37:46,974 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 18:37:46,974 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 18:37:46,975 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 18:37:46,975 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 18:37:46,975 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 18:37:46,979 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 18:37:46,979 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 18:37:46,979 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 18:37:46,980 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 18:37:46,980 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 18:37:46,980 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 18:37:46,980 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 18:37:46,980 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 18:37:46,981 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 18:37:46,981 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 18:37:47,000 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 18:37:47,000 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 18:37:47,001 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 18:37:47,001 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 18:37:47,001 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 18:37:47,003 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 18:37:47,004 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 18:37:47,004 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 18:37:47,005 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 18:37:47,005 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 18:37:47,005 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 18:37:47,006 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-12 18:37:47,037 INFO L208 MainTranslator]: Completed translation [2022-12-12 18:37:47,038 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 06:37:47 WrapperNode [2022-12-12 18:37:47,038 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-12 18:37:47,039 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-12 18:37:47,039 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-12 18:37:47,039 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-12 18:37:47,043 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 06:37:47" (1/1) ... [2022-12-12 18:37:47,060 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 06:37:47" (1/1) ... [2022-12-12 18:37:47,076 INFO L138 Inliner]: procedures = 177, calls = 71, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 145 [2022-12-12 18:37:47,076 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-12 18:37:47,077 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-12 18:37:47,077 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-12 18:37:47,077 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-12 18:37:47,083 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 06:37:47" (1/1) ... [2022-12-12 18:37:47,083 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 06:37:47" (1/1) ... [2022-12-12 18:37:47,094 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 06:37:47" (1/1) ... [2022-12-12 18:37:47,095 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 06:37:47" (1/1) ... [2022-12-12 18:37:47,101 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 06:37:47" (1/1) ... [2022-12-12 18:37:47,102 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 06:37:47" (1/1) ... [2022-12-12 18:37:47,104 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 06:37:47" (1/1) ... [2022-12-12 18:37:47,105 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 06:37:47" (1/1) ... [2022-12-12 18:37:47,124 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-12 18:37:47,125 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-12 18:37:47,125 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-12 18:37:47,125 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-12 18:37:47,126 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 06:37:47" (1/1) ... [2022-12-12 18:37:47,130 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-12 18:37:47,152 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-12 18:37:47,189 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) [2022-12-12 18:37:47,226 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 [2022-12-12 18:37:47,238 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-12 18:37:47,238 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-12-12 18:37:47,238 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-12 18:37:47,239 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-12 18:37:47,239 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-12 18:37:47,239 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2022-12-12 18:37:47,239 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2022-12-12 18:37:47,239 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2022-12-12 18:37:47,239 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2022-12-12 18:37:47,240 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2022-12-12 18:37:47,240 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2022-12-12 18:37:47,240 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2022-12-12 18:37:47,241 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2022-12-12 18:37:47,241 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-12 18:37:47,241 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-12-12 18:37:47,241 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-12 18:37:47,241 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-12 18:37:47,242 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2022-12-12 18:37:47,406 INFO L236 CfgBuilder]: Building ICFG [2022-12-12 18:37:47,407 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-12 18:37:47,651 INFO L277 CfgBuilder]: Performing block encoding [2022-12-12 18:37:47,801 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-12 18:37:47,802 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-12 18:37:47,803 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.12 06:37:47 BoogieIcfgContainer [2022-12-12 18:37:47,804 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-12 18:37:47,805 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-12 18:37:47,805 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-12 18:37:47,808 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-12 18:37:47,808 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.12 06:37:46" (1/3) ... [2022-12-12 18:37:47,808 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@38d5c70f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.12 06:37:47, skipping insertion in model container [2022-12-12 18:37:47,808 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 06:37:47" (2/3) ... [2022-12-12 18:37:47,809 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@38d5c70f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.12 06:37:47, skipping insertion in model container [2022-12-12 18:37:47,809 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.12 06:37:47" (3/3) ... [2022-12-12 18:37:47,810 INFO L112 eAbstractionObserver]: Analyzing ICFG mix044_power.oepc_pso.oepc_rmo.oepc.i [2022-12-12 18:37:47,840 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-12 18:37:47,840 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-12-12 18:37:47,840 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-12-12 18:37:47,891 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-12-12 18:37:47,925 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 143 places, 132 transitions, 284 flow [2022-12-12 18:37:47,998 INFO L130 PetriNetUnfolder]: 2/128 cut-off events. [2022-12-12 18:37:47,999 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-12 18:37:48,018 INFO L83 FinitePrefix]: Finished finitePrefix Result has 141 conditions, 128 events. 2/128 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 70 event pairs, 0 based on Foata normal form. 0/124 useless extension candidates. Maximal degree in co-relation 89. Up to 2 conditions per place. [2022-12-12 18:37:48,020 INFO L82 GeneralOperation]: Start removeDead. Operand has 143 places, 132 transitions, 284 flow [2022-12-12 18:37:48,028 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 139 places, 128 transitions, 268 flow [2022-12-12 18:37:48,034 INFO L203 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-12 18:37:48,061 INFO L174 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 139 places, 128 transitions, 268 flow [2022-12-12 18:37:48,064 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 139 places, 128 transitions, 268 flow [2022-12-12 18:37:48,121 INFO L130 PetriNetUnfolder]: 2/128 cut-off events. [2022-12-12 18:37:48,121 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-12 18:37:48,124 INFO L83 FinitePrefix]: Finished finitePrefix Result has 141 conditions, 128 events. 2/128 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 70 event pairs, 0 based on Foata normal form. 0/124 useless extension candidates. Maximal degree in co-relation 89. Up to 2 conditions per place. [2022-12-12 18:37:48,149 INFO L222 LiptonReduction]: Starting Lipton reduction on Petri net that has 139 places, 128 transitions, 268 flow [2022-12-12 18:37:48,149 INFO L226 LiptonReduction]: Number of co-enabled transitions 3270 [2022-12-12 18:37:53,629 INFO L241 LiptonReduction]: Total number of compositions: 101 [2022-12-12 18:37:53,640 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-12 18:37:53,644 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=PETRI_NET, 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;@6d9bb194, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, Conditionality=CONDITIONAL_DISJUNCTIVE, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-12 18:37:53,644 INFO L358 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2022-12-12 18:37:53,646 INFO L130 PetriNetUnfolder]: 0/3 cut-off events. [2022-12-12 18:37:53,646 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-12 18:37:53,646 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 18:37:53,647 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2022-12-12 18:37:53,647 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting P0Err0ASSERT_VIOLATIONERROR_FUNCTION === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-12-12 18:37:53,650 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 18:37:53,650 INFO L85 PathProgramCache]: Analyzing trace with hash 592657, now seen corresponding path program 1 times [2022-12-12 18:37:53,656 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 18:37:53,656 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [484460949] [2022-12-12 18:37:53,656 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 18:37:53,656 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 18:37:53,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 18:37:53,883 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 18:37:53,883 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 18:37:53,883 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [484460949] [2022-12-12 18:37:53,884 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [484460949] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 18:37:53,884 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 18:37:53,884 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-12-12 18:37:53,885 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1107161981] [2022-12-12 18:37:53,889 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 18:37:53,895 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-12 18:37:53,895 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 18:37:53,907 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-12 18:37:53,907 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-12 18:37:53,908 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 17 out of 84 [2022-12-12 18:37:53,909 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 96 places, 84 transitions, 180 flow. Second operand has 3 states, 3 states have (on average 18.0) internal successors, (54), 3 states have internal predecessors, (54), 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) [2022-12-12 18:37:53,909 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 18:37:53,910 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 17 of 84 [2022-12-12 18:37:53,910 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 18:38:01,433 INFO L130 PetriNetUnfolder]: 78140/113356 cut-off events. [2022-12-12 18:38:01,434 INFO L131 PetriNetUnfolder]: For 142/142 co-relation queries the response was YES. [2022-12-12 18:38:01,582 INFO L83 FinitePrefix]: Finished finitePrefix Result has 216370 conditions, 113356 events. 78140/113356 cut-off events. For 142/142 co-relation queries the response was YES. Maximal size of possible extension queue 5291. Compared 934591 event pairs, 11700 based on Foata normal form. 0/71018 useless extension candidates. Maximal degree in co-relation 216358. Up to 86085 conditions per place. [2022-12-12 18:38:01,712 INFO L137 encePairwiseOnDemand]: 79/84 looper letters, 50 selfloop transitions, 2 changer transitions 71/139 dead transitions. [2022-12-12 18:38:01,713 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 96 places, 139 transitions, 543 flow [2022-12-12 18:38:01,714 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-12 18:38:01,716 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-12 18:38:01,720 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 178 transitions. [2022-12-12 18:38:01,721 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.7063492063492064 [2022-12-12 18:38:01,723 INFO L295 CegarLoopForPetriNet]: 96 programPoint places, 0 predicate places. [2022-12-12 18:38:01,724 INFO L82 GeneralOperation]: Start removeDead. Operand has 96 places, 139 transitions, 543 flow [2022-12-12 18:38:01,834 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 60 places, 68 transitions, 261 flow [2022-12-12 18:38:01,835 INFO L495 AbstractCegarLoop]: Abstraction has has 60 places, 68 transitions, 261 flow [2022-12-12 18:38:01,835 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.0) internal successors, (54), 3 states have internal predecessors, (54), 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) [2022-12-12 18:38:01,835 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 18:38:01,835 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-12 18:38:01,836 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-12 18:38:01,836 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-12-12 18:38:01,842 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 18:38:01,842 INFO L85 PathProgramCache]: Analyzing trace with hash -1090959398, now seen corresponding path program 1 times [2022-12-12 18:38:01,842 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 18:38:01,842 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [24704148] [2022-12-12 18:38:01,842 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 18:38:01,843 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 18:38:01,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 18:38:02,052 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 18:38:02,053 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 18:38:02,053 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [24704148] [2022-12-12 18:38:02,053 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [24704148] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 18:38:02,053 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 18:38:02,053 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-12-12 18:38:02,053 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1823619082] [2022-12-12 18:38:02,053 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 18:38:02,054 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-12 18:38:02,054 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 18:38:02,055 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-12 18:38:02,055 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-12 18:38:02,055 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 84 [2022-12-12 18:38:02,055 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 60 places, 68 transitions, 261 flow. Second operand has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 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) [2022-12-12 18:38:02,055 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 18:38:02,055 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 84 [2022-12-12 18:38:02,055 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 18:38:06,931 INFO L130 PetriNetUnfolder]: 51165/70897 cut-off events. [2022-12-12 18:38:06,931 INFO L131 PetriNetUnfolder]: For 9306/9306 co-relation queries the response was YES. [2022-12-12 18:38:07,047 INFO L83 FinitePrefix]: Finished finitePrefix Result has 194980 conditions, 70897 events. 51165/70897 cut-off events. For 9306/9306 co-relation queries the response was YES. Maximal size of possible extension queue 2367. Compared 464460 event pairs, 5749 based on Foata normal form. 1540/59701 useless extension candidates. Maximal degree in co-relation 194965. Up to 48530 conditions per place. [2022-12-12 18:38:07,414 INFO L137 encePairwiseOnDemand]: 74/84 looper letters, 91 selfloop transitions, 13 changer transitions 2/117 dead transitions. [2022-12-12 18:38:07,414 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 62 places, 117 transitions, 671 flow [2022-12-12 18:38:07,415 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-12 18:38:07,415 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-12 18:38:07,418 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 100 transitions. [2022-12-12 18:38:07,418 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.3968253968253968 [2022-12-12 18:38:07,419 INFO L295 CegarLoopForPetriNet]: 96 programPoint places, -34 predicate places. [2022-12-12 18:38:07,421 INFO L82 GeneralOperation]: Start removeDead. Operand has 62 places, 117 transitions, 671 flow [2022-12-12 18:38:07,613 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 61 places, 115 transitions, 663 flow [2022-12-12 18:38:07,613 INFO L495 AbstractCegarLoop]: Abstraction has has 61 places, 115 transitions, 663 flow [2022-12-12 18:38:07,613 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 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) [2022-12-12 18:38:07,613 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 18:38:07,614 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-12 18:38:07,614 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-12 18:38:07,614 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-12-12 18:38:07,616 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 18:38:07,617 INFO L85 PathProgramCache]: Analyzing trace with hash 539995494, now seen corresponding path program 1 times [2022-12-12 18:38:07,617 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 18:38:07,617 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1064884767] [2022-12-12 18:38:07,617 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 18:38:07,618 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 18:38:07,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 18:38:07,851 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 18:38:07,851 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 18:38:07,855 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1064884767] [2022-12-12 18:38:07,856 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1064884767] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 18:38:07,856 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 18:38:07,856 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-12 18:38:07,857 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [401673954] [2022-12-12 18:38:07,857 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 18:38:07,857 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-12 18:38:07,857 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 18:38:07,857 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-12 18:38:07,857 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-12-12 18:38:07,858 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 84 [2022-12-12 18:38:07,858 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 61 places, 115 transitions, 663 flow. Second operand has 4 states, 4 states have (on average 15.0) internal successors, (60), 4 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 18:38:07,858 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 18:38:07,858 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 84 [2022-12-12 18:38:07,858 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 18:38:11,579 INFO L130 PetriNetUnfolder]: 39799/56111 cut-off events. [2022-12-12 18:38:11,579 INFO L131 PetriNetUnfolder]: For 5835/5835 co-relation queries the response was YES. [2022-12-12 18:38:11,687 INFO L83 FinitePrefix]: Finished finitePrefix Result has 209391 conditions, 56111 events. 39799/56111 cut-off events. For 5835/5835 co-relation queries the response was YES. Maximal size of possible extension queue 1926. Compared 363118 event pairs, 1252 based on Foata normal form. 60/46101 useless extension candidates. Maximal degree in co-relation 209373. Up to 40145 conditions per place. [2022-12-12 18:38:11,911 INFO L137 encePairwiseOnDemand]: 74/84 looper letters, 133 selfloop transitions, 23 changer transitions 0/167 dead transitions. [2022-12-12 18:38:11,912 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 64 places, 167 transitions, 1287 flow [2022-12-12 18:38:11,912 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-12 18:38:11,912 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-12-12 18:38:11,913 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 126 transitions. [2022-12-12 18:38:11,913 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.375 [2022-12-12 18:38:11,913 INFO L295 CegarLoopForPetriNet]: 96 programPoint places, -32 predicate places. [2022-12-12 18:38:11,914 INFO L82 GeneralOperation]: Start removeDead. Operand has 64 places, 167 transitions, 1287 flow [2022-12-12 18:38:12,114 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 64 places, 167 transitions, 1287 flow [2022-12-12 18:38:12,115 INFO L495 AbstractCegarLoop]: Abstraction has has 64 places, 167 transitions, 1287 flow [2022-12-12 18:38:12,115 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.0) internal successors, (60), 4 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 18:38:12,115 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 18:38:12,115 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-12 18:38:12,115 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-12 18:38:12,115 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-12-12 18:38:12,116 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 18:38:12,116 INFO L85 PathProgramCache]: Analyzing trace with hash 539995308, now seen corresponding path program 1 times [2022-12-12 18:38:12,116 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 18:38:12,116 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2094687804] [2022-12-12 18:38:12,116 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 18:38:12,116 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 18:38:12,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 18:38:12,232 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 18:38:12,232 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 18:38:12,233 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2094687804] [2022-12-12 18:38:12,233 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2094687804] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 18:38:12,233 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 18:38:12,233 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-12 18:38:12,233 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [964126604] [2022-12-12 18:38:12,234 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 18:38:12,234 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-12 18:38:12,234 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 18:38:12,235 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-12 18:38:12,235 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-12-12 18:38:12,236 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 84 [2022-12-12 18:38:12,236 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 64 places, 167 transitions, 1287 flow. Second operand has 4 states, 4 states have (on average 15.0) internal successors, (60), 4 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 18:38:12,236 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 18:38:12,236 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 84 [2022-12-12 18:38:12,236 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 18:38:16,422 INFO L130 PetriNetUnfolder]: 39225/55304 cut-off events. [2022-12-12 18:38:16,423 INFO L131 PetriNetUnfolder]: For 5769/5769 co-relation queries the response was YES. [2022-12-12 18:38:16,526 INFO L83 FinitePrefix]: Finished finitePrefix Result has 259073 conditions, 55304 events. 39225/55304 cut-off events. For 5769/5769 co-relation queries the response was YES. Maximal size of possible extension queue 1894. Compared 356443 event pairs, 1180 based on Foata normal form. 84/45388 useless extension candidates. Maximal degree in co-relation 259052. Up to 39716 conditions per place. [2022-12-12 18:38:16,764 INFO L137 encePairwiseOnDemand]: 74/84 looper letters, 197 selfloop transitions, 27 changer transitions 0/235 dead transitions. [2022-12-12 18:38:16,764 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 67 places, 235 transitions, 2282 flow [2022-12-12 18:38:16,765 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-12 18:38:16,765 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-12-12 18:38:16,765 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 133 transitions. [2022-12-12 18:38:16,765 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.3958333333333333 [2022-12-12 18:38:16,766 INFO L295 CegarLoopForPetriNet]: 96 programPoint places, -29 predicate places. [2022-12-12 18:38:16,766 INFO L82 GeneralOperation]: Start removeDead. Operand has 67 places, 235 transitions, 2282 flow [2022-12-12 18:38:16,997 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 67 places, 235 transitions, 2282 flow [2022-12-12 18:38:16,998 INFO L495 AbstractCegarLoop]: Abstraction has has 67 places, 235 transitions, 2282 flow [2022-12-12 18:38:16,998 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.0) internal successors, (60), 4 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 18:38:16,998 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 18:38:16,998 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-12 18:38:16,998 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-12-12 18:38:16,998 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-12-12 18:38:16,999 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 18:38:16,999 INFO L85 PathProgramCache]: Analyzing trace with hash -440010592, now seen corresponding path program 1 times [2022-12-12 18:38:16,999 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 18:38:16,999 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1353820269] [2022-12-12 18:38:16,999 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 18:38:16,999 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 18:38:17,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 18:38:17,100 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 18:38:17,100 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 18:38:17,100 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1353820269] [2022-12-12 18:38:17,100 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1353820269] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 18:38:17,100 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 18:38:17,101 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-12 18:38:17,101 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [432217656] [2022-12-12 18:38:17,101 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 18:38:17,101 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-12 18:38:17,101 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 18:38:17,102 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-12 18:38:17,102 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-12-12 18:38:17,102 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 84 [2022-12-12 18:38:17,103 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 67 places, 235 transitions, 2282 flow. Second operand has 4 states, 4 states have (on average 15.25) internal successors, (61), 4 states have internal predecessors, (61), 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) [2022-12-12 18:38:17,103 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 18:38:17,103 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 84 [2022-12-12 18:38:17,103 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 18:38:21,210 INFO L130 PetriNetUnfolder]: 36539/51343 cut-off events. [2022-12-12 18:38:21,211 INFO L131 PetriNetUnfolder]: For 5664/5664 co-relation queries the response was YES. [2022-12-12 18:38:21,288 INFO L83 FinitePrefix]: Finished finitePrefix Result has 290325 conditions, 51343 events. 36539/51343 cut-off events. For 5664/5664 co-relation queries the response was YES. Maximal size of possible extension queue 1689. Compared 322850 event pairs, 820 based on Foata normal form. 528/42613 useless extension candidates. Maximal degree in co-relation 290301. Up to 37131 conditions per place. [2022-12-12 18:38:21,496 INFO L137 encePairwiseOnDemand]: 76/84 looper letters, 278 selfloop transitions, 17 changer transitions 11/317 dead transitions. [2022-12-12 18:38:21,496 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 70 places, 317 transitions, 3696 flow [2022-12-12 18:38:21,496 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-12 18:38:21,497 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-12-12 18:38:21,514 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 120 transitions. [2022-12-12 18:38:21,515 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.35714285714285715 [2022-12-12 18:38:21,515 INFO L295 CegarLoopForPetriNet]: 96 programPoint places, -26 predicate places. [2022-12-12 18:38:21,515 INFO L82 GeneralOperation]: Start removeDead. Operand has 70 places, 317 transitions, 3696 flow [2022-12-12 18:38:21,854 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 69 places, 306 transitions, 3564 flow [2022-12-12 18:38:21,854 INFO L495 AbstractCegarLoop]: Abstraction has has 69 places, 306 transitions, 3564 flow [2022-12-12 18:38:21,854 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.25) internal successors, (61), 4 states have internal predecessors, (61), 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) [2022-12-12 18:38:21,854 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 18:38:21,854 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-12 18:38:21,855 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-12-12 18:38:21,855 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-12-12 18:38:21,856 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 18:38:21,856 INFO L85 PathProgramCache]: Analyzing trace with hash -755337945, now seen corresponding path program 1 times [2022-12-12 18:38:21,874 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 18:38:21,875 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1366339177] [2022-12-12 18:38:21,875 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 18:38:21,878 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 18:38:21,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 18:38:22,032 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 18:38:22,032 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 18:38:22,032 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1366339177] [2022-12-12 18:38:22,032 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1366339177] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 18:38:22,032 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 18:38:22,032 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-12 18:38:22,032 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1389112531] [2022-12-12 18:38:22,032 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 18:38:22,033 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-12 18:38:22,033 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 18:38:22,034 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-12 18:38:22,034 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-12 18:38:22,034 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 13 out of 84 [2022-12-12 18:38:22,035 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 69 places, 306 transitions, 3564 flow. Second operand has 4 states, 4 states have (on average 16.25) internal successors, (65), 4 states have internal predecessors, (65), 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) [2022-12-12 18:38:22,035 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 18:38:22,035 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 13 of 84 [2022-12-12 18:38:22,035 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 18:38:30,226 INFO L130 PetriNetUnfolder]: 65790/90291 cut-off events. [2022-12-12 18:38:30,227 INFO L131 PetriNetUnfolder]: For 167993/170858 co-relation queries the response was YES. [2022-12-12 18:38:30,445 INFO L83 FinitePrefix]: Finished finitePrefix Result has 552719 conditions, 90291 events. 65790/90291 cut-off events. For 167993/170858 co-relation queries the response was YES. Maximal size of possible extension queue 3135. Compared 585495 event pairs, 6768 based on Foata normal form. 5749/82586 useless extension candidates. Maximal degree in co-relation 552692. Up to 62622 conditions per place. [2022-12-12 18:38:30,949 INFO L137 encePairwiseOnDemand]: 69/84 looper letters, 367 selfloop transitions, 87 changer transitions 369/859 dead transitions. [2022-12-12 18:38:30,949 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 73 places, 859 transitions, 11765 flow [2022-12-12 18:38:30,950 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-12 18:38:30,950 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-12-12 18:38:30,951 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 169 transitions. [2022-12-12 18:38:30,951 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.4023809523809524 [2022-12-12 18:38:30,951 INFO L295 CegarLoopForPetriNet]: 96 programPoint places, -23 predicate places. [2022-12-12 18:38:30,951 INFO L82 GeneralOperation]: Start removeDead. Operand has 73 places, 859 transitions, 11765 flow [2022-12-12 18:38:31,331 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 71 places, 490 transitions, 6679 flow [2022-12-12 18:38:31,332 INFO L495 AbstractCegarLoop]: Abstraction has has 71 places, 490 transitions, 6679 flow [2022-12-12 18:38:31,332 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.25) internal successors, (65), 4 states have internal predecessors, (65), 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) [2022-12-12 18:38:31,332 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 18:38:31,332 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-12 18:38:31,332 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-12-12 18:38:31,332 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-12-12 18:38:31,333 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 18:38:31,333 INFO L85 PathProgramCache]: Analyzing trace with hash 1537663224, now seen corresponding path program 1 times [2022-12-12 18:38:31,333 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 18:38:31,333 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1985955867] [2022-12-12 18:38:31,333 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 18:38:31,333 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 18:38:31,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 18:38:31,481 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 18:38:31,482 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 18:38:31,482 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1985955867] [2022-12-12 18:38:31,482 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1985955867] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 18:38:31,482 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 18:38:31,482 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-12 18:38:31,482 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1789581932] [2022-12-12 18:38:31,482 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 18:38:31,482 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-12 18:38:31,482 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 18:38:31,483 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-12 18:38:31,483 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-12-12 18:38:31,483 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 84 [2022-12-12 18:38:31,483 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 71 places, 490 transitions, 6679 flow. Second operand has 4 states, 4 states have (on average 16.0) internal successors, (64), 4 states have internal predecessors, (64), 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) [2022-12-12 18:38:31,483 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 18:38:31,483 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 84 [2022-12-12 18:38:31,483 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 18:38:42,650 INFO L130 PetriNetUnfolder]: 79725/109320 cut-off events. [2022-12-12 18:38:42,651 INFO L131 PetriNetUnfolder]: For 249485/253072 co-relation queries the response was YES. [2022-12-12 18:38:42,890 INFO L83 FinitePrefix]: Finished finitePrefix Result has 763329 conditions, 109320 events. 79725/109320 cut-off events. For 249485/253072 co-relation queries the response was YES. Maximal size of possible extension queue 3552. Compared 718645 event pairs, 9328 based on Foata normal form. 2618/94880 useless extension candidates. Maximal degree in co-relation 763299. Up to 96445 conditions per place. [2022-12-12 18:38:43,253 INFO L137 encePairwiseOnDemand]: 75/84 looper letters, 502 selfloop transitions, 57 changer transitions 63/637 dead transitions. [2022-12-12 18:38:43,254 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 74 places, 637 transitions, 9969 flow [2022-12-12 18:38:43,254 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-12 18:38:43,258 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-12-12 18:38:43,258 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 135 transitions. [2022-12-12 18:38:43,258 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.4017857142857143 [2022-12-12 18:38:43,259 INFO L295 CegarLoopForPetriNet]: 96 programPoint places, -22 predicate places. [2022-12-12 18:38:43,259 INFO L82 GeneralOperation]: Start removeDead. Operand has 74 places, 637 transitions, 9969 flow [2022-12-12 18:38:43,624 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 74 places, 574 transitions, 8963 flow [2022-12-12 18:38:43,624 INFO L495 AbstractCegarLoop]: Abstraction has has 74 places, 574 transitions, 8963 flow [2022-12-12 18:38:43,624 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.0) internal successors, (64), 4 states have internal predecessors, (64), 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) [2022-12-12 18:38:43,624 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 18:38:43,624 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-12 18:38:43,624 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-12-12 18:38:43,624 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-12-12 18:38:43,625 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 18:38:43,626 INFO L85 PathProgramCache]: Analyzing trace with hash -1085687664, now seen corresponding path program 1 times [2022-12-12 18:38:43,626 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 18:38:43,626 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1587538814] [2022-12-12 18:38:43,626 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 18:38:43,626 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 18:38:43,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 18:38:43,784 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 18:38:43,784 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 18:38:43,784 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1587538814] [2022-12-12 18:38:43,784 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1587538814] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 18:38:43,784 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 18:38:43,784 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-12 18:38:43,784 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [957147900] [2022-12-12 18:38:43,784 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 18:38:43,785 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-12 18:38:43,785 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 18:38:43,785 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-12 18:38:43,785 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-12-12 18:38:43,785 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 13 out of 84 [2022-12-12 18:38:43,787 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 74 places, 574 transitions, 8963 flow. Second operand has 5 states, 5 states have (on average 16.0) internal successors, (80), 5 states have internal predecessors, (80), 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) [2022-12-12 18:38:43,787 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 18:38:43,787 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 13 of 84 [2022-12-12 18:38:43,787 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 18:38:54,164 INFO L130 PetriNetUnfolder]: 64538/93081 cut-off events. [2022-12-12 18:38:54,164 INFO L131 PetriNetUnfolder]: For 227660/232798 co-relation queries the response was YES. [2022-12-12 18:38:54,391 INFO L83 FinitePrefix]: Finished finitePrefix Result has 729473 conditions, 93081 events. 64538/93081 cut-off events. For 227660/232798 co-relation queries the response was YES. Maximal size of possible extension queue 3818. Compared 678514 event pairs, 4583 based on Foata normal form. 8703/87284 useless extension candidates. Maximal degree in co-relation 729440. Up to 81898 conditions per place. [2022-12-12 18:38:54,660 INFO L137 encePairwiseOnDemand]: 69/84 looper letters, 451 selfloop transitions, 197 changer transitions 374/1062 dead transitions. [2022-12-12 18:38:54,660 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 79 places, 1062 transitions, 18692 flow [2022-12-12 18:38:54,661 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-12 18:38:54,661 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-12-12 18:38:54,661 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 207 transitions. [2022-12-12 18:38:54,662 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.4107142857142857 [2022-12-12 18:38:54,662 INFO L295 CegarLoopForPetriNet]: 96 programPoint places, -17 predicate places. [2022-12-12 18:38:54,662 INFO L82 GeneralOperation]: Start removeDead. Operand has 79 places, 1062 transitions, 18692 flow [2022-12-12 18:38:55,032 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 77 places, 688 transitions, 12056 flow [2022-12-12 18:38:55,032 INFO L495 AbstractCegarLoop]: Abstraction has has 77 places, 688 transitions, 12056 flow [2022-12-12 18:38:55,032 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.0) internal successors, (80), 5 states have internal predecessors, (80), 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) [2022-12-12 18:38:55,032 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 18:38:55,032 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-12 18:38:55,033 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-12-12 18:38:55,033 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-12-12 18:38:55,033 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 18:38:55,033 INFO L85 PathProgramCache]: Analyzing trace with hash 1815478050, now seen corresponding path program 1 times [2022-12-12 18:38:55,033 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 18:38:55,033 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [758545394] [2022-12-12 18:38:55,033 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 18:38:55,033 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 18:38:55,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 18:38:55,203 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 18:38:55,203 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 18:38:55,203 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [758545394] [2022-12-12 18:38:55,204 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [758545394] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 18:38:55,204 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 18:38:55,204 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-12 18:38:55,204 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1202947127] [2022-12-12 18:38:55,205 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 18:38:55,206 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-12 18:38:55,206 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 18:38:55,206 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-12 18:38:55,206 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2022-12-12 18:38:55,206 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 13 out of 84 [2022-12-12 18:38:55,207 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 77 places, 688 transitions, 12056 flow. Second operand has 6 states, 6 states have (on average 16.0) internal successors, (96), 6 states have internal predecessors, (96), 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) [2022-12-12 18:38:55,207 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 18:38:55,207 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 13 of 84 [2022-12-12 18:38:55,207 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 18:39:01,822 INFO L130 PetriNetUnfolder]: 35043/53570 cut-off events. [2022-12-12 18:39:01,823 INFO L131 PetriNetUnfolder]: For 160926/164973 co-relation queries the response was YES. [2022-12-12 18:39:01,960 INFO L83 FinitePrefix]: Finished finitePrefix Result has 468299 conditions, 53570 events. 35043/53570 cut-off events. For 160926/164973 co-relation queries the response was YES. Maximal size of possible extension queue 2232. Compared 405909 event pairs, 765 based on Foata normal form. 6130/51599 useless extension candidates. Maximal degree in co-relation 468263. Up to 46395 conditions per place. [2022-12-12 18:39:02,142 INFO L137 encePairwiseOnDemand]: 69/84 looper letters, 408 selfloop transitions, 247 changer transitions 250/945 dead transitions. [2022-12-12 18:39:02,142 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 83 places, 945 transitions, 18357 flow [2022-12-12 18:39:02,143 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-12 18:39:02,143 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2022-12-12 18:39:02,144 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 243 transitions. [2022-12-12 18:39:02,144 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.413265306122449 [2022-12-12 18:39:02,144 INFO L295 CegarLoopForPetriNet]: 96 programPoint places, -13 predicate places. [2022-12-12 18:39:02,144 INFO L82 GeneralOperation]: Start removeDead. Operand has 83 places, 945 transitions, 18357 flow [2022-12-12 18:39:02,439 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 81 places, 695 transitions, 13450 flow [2022-12-12 18:39:02,439 INFO L495 AbstractCegarLoop]: Abstraction has has 81 places, 695 transitions, 13450 flow [2022-12-12 18:39:02,439 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 16.0) internal successors, (96), 6 states have internal predecessors, (96), 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) [2022-12-12 18:39:02,439 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 18:39:02,440 INFO L214 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] [2022-12-12 18:39:02,440 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-12-12 18:39:02,440 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-12-12 18:39:02,440 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 18:39:02,440 INFO L85 PathProgramCache]: Analyzing trace with hash -488384312, now seen corresponding path program 1 times [2022-12-12 18:39:02,440 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 18:39:02,440 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [839049395] [2022-12-12 18:39:02,440 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 18:39:02,440 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 18:39:02,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat