/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-RepeatedSemanticLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread-wmm/mix028_tso.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.repeated-lipton-8d0d62b [2022-12-05 22:57:54,754 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-05 22:57:54,755 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-05 22:57:54,780 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-05 22:57:54,781 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-05 22:57:54,782 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-05 22:57:54,784 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-05 22:57:54,787 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-05 22:57:54,791 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-05 22:57:54,794 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-05 22:57:54,795 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-05 22:57:54,796 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-05 22:57:54,796 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-05 22:57:54,796 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-05 22:57:54,797 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-05 22:57:54,798 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-05 22:57:54,798 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-05 22:57:54,798 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-05 22:57:54,799 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-05 22:57:54,800 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-05 22:57:54,801 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-05 22:57:54,802 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-05 22:57:54,802 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-05 22:57:54,803 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-05 22:57:54,806 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-05 22:57:54,807 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-05 22:57:54,807 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-05 22:57:54,807 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-05 22:57:54,808 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-05 22:57:54,808 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-05 22:57:54,836 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-05 22:57:54,837 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-05 22:57:54,838 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-05 22:57:54,839 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-05 22:57:54,839 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-05 22:57:54,839 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-05 22:57:54,840 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-05 22:57:54,840 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-05 22:57:54,840 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-05 22:57:54,840 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-05 22:57:54,841 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-05 22:57:54,842 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 [2022-12-05 22:57:54,869 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-05 22:57:54,870 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-05 22:57:54,871 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-05 22:57:54,872 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-05 22:57:54,872 INFO L138 SettingsManager]: * Use SBE=true [2022-12-05 22:57:54,872 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-05 22:57:54,873 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-05 22:57:54,873 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-05 22:57:54,873 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-05 22:57:54,873 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-05 22:57:54,874 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-05 22:57:54,874 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-05 22:57:54,874 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-05 22:57:54,874 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-05 22:57:54,874 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-05 22:57:54,874 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-05 22:57:54,874 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-05 22:57:54,874 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-05 22:57:54,874 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-05 22:57:54,875 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-12-05 22:57:54,875 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-05 22:57:54,875 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-05 22:57:54,875 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-05 22:57:54,875 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-05 22:57:54,875 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-05 22:57:54,875 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-05 22:57:54,875 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-05 22:57:54,876 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=REPEATED_LIPTON_PN [2022-12-05 22:57:54,876 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-12-05 22:57:55,157 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-05 22:57:55,170 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-05 22:57:55,172 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-05 22:57:55,172 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-05 22:57:55,173 INFO L275 PluginConnector]: CDTParser initialized [2022-12-05 22:57:55,174 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/mix028_tso.i [2022-12-05 22:57:56,076 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-05 22:57:56,316 INFO L351 CDTParser]: Found 1 translation units. [2022-12-05 22:57:56,317 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/mix028_tso.i [2022-12-05 22:57:56,334 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ea2e2a09b/041c364212534d31b1cc7badbdabf9e2/FLAG95586e44a [2022-12-05 22:57:56,657 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ea2e2a09b/041c364212534d31b1cc7badbdabf9e2 [2022-12-05 22:57:56,658 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-05 22:57:56,659 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-12-05 22:57:56,660 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-05 22:57:56,660 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-05 22:57:56,662 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-05 22:57:56,663 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.12 10:57:56" (1/1) ... [2022-12-05 22:57:56,663 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2499dac8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 10:57:56, skipping insertion in model container [2022-12-05 22:57:56,663 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.12 10:57:56" (1/1) ... [2022-12-05 22:57:56,667 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-05 22:57:56,695 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-05 22:57:56,791 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/mix028_tso.i[944,957] [2022-12-05 22:57:56,872 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 22:57:56,872 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 22:57:56,872 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 22:57:56,873 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 22:57:56,873 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 22:57:56,873 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 22:57:56,873 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 22:57:56,873 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 22:57:56,874 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 22:57:56,874 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 22:57:56,874 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 22:57:56,874 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 22:57:56,874 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 22:57:56,876 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 22:57:56,877 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 22:57:56,877 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 22:57:56,877 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 22:57:56,878 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 22:57:56,879 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 22:57:56,884 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 22:57:56,884 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 22:57:56,884 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 22:57:56,884 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 22:57:56,886 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 22:57:56,886 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 22:57:56,886 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 22:57:56,891 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 22:57:56,892 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 22:57:56,892 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 22:57:56,893 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 22:57:56,893 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 22:57:56,898 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 22:57:56,899 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-05 22:57:56,906 INFO L203 MainTranslator]: Completed pre-run [2022-12-05 22:57:56,913 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/mix028_tso.i[944,957] [2022-12-05 22:57:56,927 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 22:57:56,927 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 22:57:56,928 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 22:57:56,928 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 22:57:56,928 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 22:57:56,928 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 22:57:56,928 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 22:57:56,928 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 22:57:56,929 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 22:57:56,929 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 22:57:56,929 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 22:57:56,929 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 22:57:56,929 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 22:57:56,931 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 22:57:56,931 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 22:57:56,931 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 22:57:56,931 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 22:57:56,932 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 22:57:56,932 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 22:57:56,936 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 22:57:56,936 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 22:57:56,936 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 22:57:56,936 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 22:57:56,937 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 22:57:56,938 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 22:57:56,938 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 22:57:56,950 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 22:57:56,950 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 22:57:56,950 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 22:57:56,951 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 22:57:56,952 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 22:57:56,969 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 22:57:56,970 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-05 22:57:57,001 INFO L208 MainTranslator]: Completed translation [2022-12-05 22:57:57,002 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 10:57:57 WrapperNode [2022-12-05 22:57:57,002 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-05 22:57:57,003 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-05 22:57:57,003 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-05 22:57:57,003 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-05 22:57:57,008 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 10:57:57" (1/1) ... [2022-12-05 22:57:57,033 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 10:57:57" (1/1) ... [2022-12-05 22:57:57,074 INFO L138 Inliner]: procedures = 176, calls = 56, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 161 [2022-12-05 22:57:57,074 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-05 22:57:57,075 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-05 22:57:57,075 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-05 22:57:57,075 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-05 22:57:57,082 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 10:57:57" (1/1) ... [2022-12-05 22:57:57,082 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 10:57:57" (1/1) ... [2022-12-05 22:57:57,095 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 10:57:57" (1/1) ... [2022-12-05 22:57:57,095 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 10:57:57" (1/1) ... [2022-12-05 22:57:57,109 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 10:57:57" (1/1) ... [2022-12-05 22:57:57,110 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 10:57:57" (1/1) ... [2022-12-05 22:57:57,111 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 10:57:57" (1/1) ... [2022-12-05 22:57:57,112 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 10:57:57" (1/1) ... [2022-12-05 22:57:57,114 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-05 22:57:57,115 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-05 22:57:57,115 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-05 22:57:57,115 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-05 22:57:57,116 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 10:57:57" (1/1) ... [2022-12-05 22:57:57,130 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-05 22:57:57,141 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-05 22:57:57,157 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) [2022-12-05 22:57:57,212 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 [2022-12-05 22:57:57,229 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-05 22:57:57,229 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-12-05 22:57:57,230 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-05 22:57:57,230 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-05 22:57:57,230 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-05 22:57:57,230 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2022-12-05 22:57:57,230 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2022-12-05 22:57:57,230 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2022-12-05 22:57:57,230 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2022-12-05 22:57:57,230 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2022-12-05 22:57:57,230 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2022-12-05 22:57:57,230 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-05 22:57:57,230 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-12-05 22:57:57,231 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-05 22:57:57,231 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-05 22:57:57,232 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2022-12-05 22:57:57,381 INFO L236 CfgBuilder]: Building ICFG [2022-12-05 22:57:57,382 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-05 22:57:57,662 INFO L277 CfgBuilder]: Performing block encoding [2022-12-05 22:57:57,826 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-05 22:57:57,826 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-05 22:57:57,828 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.12 10:57:57 BoogieIcfgContainer [2022-12-05 22:57:57,828 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-05 22:57:57,829 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-05 22:57:57,829 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-05 22:57:57,836 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-05 22:57:57,836 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 05.12 10:57:56" (1/3) ... [2022-12-05 22:57:57,837 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4518ce15 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.12 10:57:57, skipping insertion in model container [2022-12-05 22:57:57,837 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 10:57:57" (2/3) ... [2022-12-05 22:57:57,837 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4518ce15 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.12 10:57:57, skipping insertion in model container [2022-12-05 22:57:57,837 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.12 10:57:57" (3/3) ... [2022-12-05 22:57:57,838 INFO L112 eAbstractionObserver]: Analyzing ICFG mix028_tso.i [2022-12-05 22:57:57,855 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-05 22:57:57,856 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-12-05 22:57:57,856 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-12-05 22:57:57,924 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-12-05 22:57:57,952 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 116 places, 108 transitions, 231 flow [2022-12-05 22:57:57,985 INFO L130 PetriNetUnfolder]: 2/105 cut-off events. [2022-12-05 22:57:57,985 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-05 22:57:57,988 INFO L83 FinitePrefix]: Finished finitePrefix Result has 115 conditions, 105 events. 2/105 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 56 event pairs, 0 based on Foata normal form. 0/101 useless extension candidates. Maximal degree in co-relation 69. Up to 2 conditions per place. [2022-12-05 22:57:57,989 INFO L82 GeneralOperation]: Start removeDead. Operand has 116 places, 108 transitions, 231 flow [2022-12-05 22:57:57,992 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 113 places, 105 transitions, 219 flow [2022-12-05 22:57:57,994 INFO L195 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-05 22:57:58,010 INFO L167 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 113 places, 105 transitions, 219 flow [2022-12-05 22:57:58,013 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 113 places, 105 transitions, 219 flow [2022-12-05 22:57:58,032 INFO L130 PetriNetUnfolder]: 2/105 cut-off events. [2022-12-05 22:57:58,032 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-05 22:57:58,032 INFO L83 FinitePrefix]: Finished finitePrefix Result has 115 conditions, 105 events. 2/105 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 56 event pairs, 0 based on Foata normal form. 0/101 useless extension candidates. Maximal degree in co-relation 69. Up to 2 conditions per place. [2022-12-05 22:57:58,034 INFO L184 LiptonReduction]: Starting Lipton reduction on Petri net that has 113 places, 105 transitions, 219 flow [2022-12-05 22:57:58,034 INFO L188 LiptonReduction]: Number of co-enabled transitions 1860 [2022-12-05 22:58:01,915 INFO L203 LiptonReduction]: Total number of compositions: 83 [2022-12-05 22:58:01,939 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-05 22:58:01,944 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;@65978c0c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, Conditionality=CONDITIONAL_DISJUNCTIVE, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-05 22:58:01,945 INFO L358 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2022-12-05 22:58:01,951 INFO L130 PetriNetUnfolder]: 0/12 cut-off events. [2022-12-05 22:58:01,951 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-05 22:58:01,951 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-05 22:58:01,952 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-12-05 22:58:01,952 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting P2Err0ASSERT_VIOLATIONERROR_FUNCTION === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2022-12-05 22:58:01,955 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-05 22:58:01,956 INFO L85 PathProgramCache]: Analyzing trace with hash -1490817936, now seen corresponding path program 1 times [2022-12-05 22:58:01,962 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-05 22:58:01,963 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1925704394] [2022-12-05 22:58:01,963 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-05 22:58:01,964 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-05 22:58:02,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-05 22:58:02,359 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-05 22:58:02,359 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-05 22:58:02,359 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1925704394] [2022-12-05 22:58:02,360 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1925704394] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-05 22:58:02,360 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-05 22:58:02,360 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-12-05 22:58:02,361 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1960077134] [2022-12-05 22:58:02,361 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-05 22:58:02,367 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-05 22:58:02,367 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-05 22:58:02,388 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-05 22:58:02,388 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-05 22:58:02,389 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 3 out of 26 [2022-12-05 22:58:02,390 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 35 places, 26 transitions, 61 flow. Second operand has 3 states, 3 states have (on average 5.333333333333333) internal successors, (16), 3 states have internal predecessors, (16), 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) [2022-12-05 22:58:02,390 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-05 22:58:02,390 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 3 of 26 [2022-12-05 22:58:02,391 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-05 22:58:02,592 INFO L130 PetriNetUnfolder]: 777/1247 cut-off events. [2022-12-05 22:58:02,592 INFO L131 PetriNetUnfolder]: For 9/9 co-relation queries the response was YES. [2022-12-05 22:58:02,595 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2452 conditions, 1247 events. 777/1247 cut-off events. For 9/9 co-relation queries the response was YES. Maximal size of possible extension queue 87. Compared 6171 event pairs, 129 based on Foata normal form. 0/1123 useless extension candidates. Maximal degree in co-relation 2441. Up to 937 conditions per place. [2022-12-05 22:58:02,599 INFO L137 encePairwiseOnDemand]: 21/26 looper letters, 24 selfloop transitions, 2 changer transitions 4/33 dead transitions. [2022-12-05 22:58:02,600 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 35 places, 33 transitions, 135 flow [2022-12-05 22:58:02,601 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-05 22:58:02,602 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-05 22:58:02,606 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 44 transitions. [2022-12-05 22:58:02,608 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.5641025641025641 [2022-12-05 22:58:02,609 INFO L175 Difference]: Start difference. First operand has 35 places, 26 transitions, 61 flow. Second operand 3 states and 44 transitions. [2022-12-05 22:58:02,609 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 35 places, 33 transitions, 135 flow [2022-12-05 22:58:02,612 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 32 places, 33 transitions, 132 flow, removed 0 selfloop flow, removed 3 redundant places. [2022-12-05 22:58:02,614 INFO L231 Difference]: Finished difference. Result has 32 places, 21 transitions, 52 flow [2022-12-05 22:58:02,615 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=26, PETRI_DIFFERENCE_MINUEND_FLOW=52, PETRI_DIFFERENCE_MINUEND_PLACES=30, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=23, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=21, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=52, PETRI_PLACES=32, PETRI_TRANSITIONS=21} [2022-12-05 22:58:02,618 INFO L294 CegarLoopForPetriNet]: 35 programPoint places, -3 predicate places. [2022-12-05 22:58:02,618 WARN L163 eatedLiptonReduction]: Counterexample is not a run of mAbstraction. Replaying acceptance of the word... [2022-12-05 22:58:02,618 INFO L89 Accepts]: Start accepts. Operand has 32 places, 21 transitions, 52 flow [2022-12-05 22:58:02,620 INFO L95 Accepts]: Finished accepts. [2022-12-05 22:58:02,621 INFO L195 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-05 22:58:02,621 INFO L167 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 32 places, 21 transitions, 52 flow [2022-12-05 22:58:02,622 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 30 places, 21 transitions, 52 flow [2022-12-05 22:58:02,627 INFO L130 PetriNetUnfolder]: 0/21 cut-off events. [2022-12-05 22:58:02,627 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-05 22:58:02,627 INFO L83 FinitePrefix]: Finished finitePrefix Result has 31 conditions, 21 events. 0/21 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 25 event pairs, 0 based on Foata normal form. 0/21 useless extension candidates. Maximal degree in co-relation 0. Up to 2 conditions per place. [2022-12-05 22:58:02,628 INFO L184 LiptonReduction]: Starting Lipton reduction on Petri net that has 30 places, 21 transitions, 52 flow [2022-12-05 22:58:02,628 INFO L188 LiptonReduction]: Number of co-enabled transitions 206 [2022-12-05 22:58:02,737 INFO L203 LiptonReduction]: Total number of compositions: 0 [2022-12-05 22:58:02,739 INFO L143 eatedLiptonReduction]: Time needed for LBE in milliseconds: 121 [2022-12-05 22:58:02,739 INFO L495 AbstractCegarLoop]: Abstraction has has 30 places, 21 transitions, 52 flow [2022-12-05 22:58:02,740 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.333333333333333) internal successors, (16), 3 states have internal predecessors, (16), 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) [2022-12-05 22:58:02,740 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-05 22:58:02,740 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-05 22:58:02,740 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-05 22:58:02,743 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2022-12-05 22:58:02,743 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-05 22:58:02,744 INFO L85 PathProgramCache]: Analyzing trace with hash 1843101316, now seen corresponding path program 1 times [2022-12-05 22:58:02,744 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-05 22:58:02,744 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1814206285] [2022-12-05 22:58:02,744 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-05 22:58:02,744 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-05 22:58:02,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-05 22:58:02,906 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-05 22:58:02,906 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-05 22:58:02,906 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1814206285] [2022-12-05 22:58:02,907 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1814206285] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-05 22:58:02,907 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-05 22:58:02,907 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-12-05 22:58:02,907 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [53167115] [2022-12-05 22:58:02,907 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-05 22:58:02,908 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-05 22:58:02,908 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-05 22:58:02,908 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-05 22:58:02,908 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-05 22:58:02,908 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 3 out of 21 [2022-12-05 22:58:02,909 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 30 places, 21 transitions, 52 flow. Second operand has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 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) [2022-12-05 22:58:02,909 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-05 22:58:02,909 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 3 of 21 [2022-12-05 22:58:02,909 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-05 22:58:03,005 INFO L130 PetriNetUnfolder]: 453/743 cut-off events. [2022-12-05 22:58:03,005 INFO L131 PetriNetUnfolder]: For 27/27 co-relation queries the response was YES. [2022-12-05 22:58:03,006 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1515 conditions, 743 events. 453/743 cut-off events. For 27/27 co-relation queries the response was YES. Maximal size of possible extension queue 51. Compared 3278 event pairs, 177 based on Foata normal form. 24/763 useless extension candidates. Maximal degree in co-relation 1505. Up to 445 conditions per place. [2022-12-05 22:58:03,009 INFO L137 encePairwiseOnDemand]: 18/21 looper letters, 23 selfloop transitions, 2 changer transitions 0/28 dead transitions. [2022-12-05 22:58:03,009 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 32 places, 28 transitions, 116 flow [2022-12-05 22:58:03,009 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-05 22:58:03,009 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-05 22:58:03,010 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 35 transitions. [2022-12-05 22:58:03,010 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.5555555555555556 [2022-12-05 22:58:03,010 INFO L175 Difference]: Start difference. First operand has 30 places, 21 transitions, 52 flow. Second operand 3 states and 35 transitions. [2022-12-05 22:58:03,010 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 32 places, 28 transitions, 116 flow [2022-12-05 22:58:03,011 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 30 places, 28 transitions, 112 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-12-05 22:58:03,011 INFO L231 Difference]: Finished difference. Result has 31 places, 21 transitions, 56 flow [2022-12-05 22:58:03,011 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=21, PETRI_DIFFERENCE_MINUEND_FLOW=48, PETRI_DIFFERENCE_MINUEND_PLACES=28, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=21, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=19, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=56, PETRI_PLACES=31, PETRI_TRANSITIONS=21} [2022-12-05 22:58:03,012 INFO L294 CegarLoopForPetriNet]: 35 programPoint places, -4 predicate places. [2022-12-05 22:58:03,012 WARN L163 eatedLiptonReduction]: Counterexample is not a run of mAbstraction. Replaying acceptance of the word... [2022-12-05 22:58:03,012 INFO L89 Accepts]: Start accepts. Operand has 31 places, 21 transitions, 56 flow [2022-12-05 22:58:03,013 INFO L95 Accepts]: Finished accepts. [2022-12-05 22:58:03,013 INFO L195 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-05 22:58:03,013 INFO L167 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 31 places, 21 transitions, 56 flow [2022-12-05 22:58:03,013 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 31 places, 21 transitions, 56 flow [2022-12-05 22:58:03,017 INFO L130 PetriNetUnfolder]: 0/21 cut-off events. [2022-12-05 22:58:03,017 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-05 22:58:03,017 INFO L83 FinitePrefix]: Finished finitePrefix Result has 34 conditions, 21 events. 0/21 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 26 event pairs, 0 based on Foata normal form. 0/21 useless extension candidates. Maximal degree in co-relation 0. Up to 3 conditions per place. [2022-12-05 22:58:03,017 INFO L184 LiptonReduction]: Starting Lipton reduction on Petri net that has 31 places, 21 transitions, 56 flow [2022-12-05 22:58:03,017 INFO L188 LiptonReduction]: Number of co-enabled transitions 202 [2022-12-05 22:58:03,025 INFO L203 LiptonReduction]: Total number of compositions: 0 [2022-12-05 22:58:03,026 INFO L143 eatedLiptonReduction]: Time needed for LBE in milliseconds: 14 [2022-12-05 22:58:03,026 INFO L495 AbstractCegarLoop]: Abstraction has has 31 places, 21 transitions, 56 flow [2022-12-05 22:58:03,027 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 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) [2022-12-05 22:58:03,027 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-05 22:58:03,027 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-05 22:58:03,027 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-05 22:58:03,027 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2022-12-05 22:58:03,027 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-05 22:58:03,027 INFO L85 PathProgramCache]: Analyzing trace with hash 1648594908, now seen corresponding path program 1 times [2022-12-05 22:58:03,028 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-05 22:58:03,028 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2098669244] [2022-12-05 22:58:03,028 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-05 22:58:03,028 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-05 22:58:03,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-05 22:58:03,148 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-05 22:58:03,148 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-05 22:58:03,148 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2098669244] [2022-12-05 22:58:03,148 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2098669244] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-05 22:58:03,148 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-05 22:58:03,148 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-12-05 22:58:03,148 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2007912202] [2022-12-05 22:58:03,148 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-05 22:58:03,149 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-05 22:58:03,149 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-05 22:58:03,149 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-05 22:58:03,149 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-05 22:58:03,149 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 2 out of 21 [2022-12-05 22:58:03,149 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 31 places, 21 transitions, 56 flow. Second operand has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 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) [2022-12-05 22:58:03,149 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-05 22:58:03,150 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 2 of 21 [2022-12-05 22:58:03,150 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-05 22:58:03,245 INFO L130 PetriNetUnfolder]: 615/1010 cut-off events. [2022-12-05 22:58:03,246 INFO L131 PetriNetUnfolder]: For 90/90 co-relation queries the response was YES. [2022-12-05 22:58:03,247 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2133 conditions, 1010 events. 615/1010 cut-off events. For 90/90 co-relation queries the response was YES. Maximal size of possible extension queue 58. Compared 4663 event pairs, 127 based on Foata normal form. 6/1012 useless extension candidates. Maximal degree in co-relation 2122. Up to 866 conditions per place. [2022-12-05 22:58:03,249 INFO L137 encePairwiseOnDemand]: 17/21 looper letters, 29 selfloop transitions, 3 changer transitions 0/34 dead transitions. [2022-12-05 22:58:03,250 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 33 places, 34 transitions, 153 flow [2022-12-05 22:58:03,250 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-05 22:58:03,250 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-05 22:58:03,250 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 39 transitions. [2022-12-05 22:58:03,250 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.6190476190476191 [2022-12-05 22:58:03,251 INFO L175 Difference]: Start difference. First operand has 31 places, 21 transitions, 56 flow. Second operand 3 states and 39 transitions. [2022-12-05 22:58:03,251 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 33 places, 34 transitions, 153 flow [2022-12-05 22:58:03,251 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 31 places, 34 transitions, 147 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-12-05 22:58:03,252 INFO L231 Difference]: Finished difference. Result has 32 places, 23 transitions, 71 flow [2022-12-05 22:58:03,252 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=21, PETRI_DIFFERENCE_MINUEND_FLOW=52, PETRI_DIFFERENCE_MINUEND_PLACES=29, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=21, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=18, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=71, PETRI_PLACES=32, PETRI_TRANSITIONS=23} [2022-12-05 22:58:03,252 INFO L294 CegarLoopForPetriNet]: 35 programPoint places, -3 predicate places. [2022-12-05 22:58:03,252 WARN L163 eatedLiptonReduction]: Counterexample is not a run of mAbstraction. Replaying acceptance of the word... [2022-12-05 22:58:03,252 INFO L89 Accepts]: Start accepts. Operand has 32 places, 23 transitions, 71 flow [2022-12-05 22:58:03,253 INFO L95 Accepts]: Finished accepts. [2022-12-05 22:58:03,253 INFO L195 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-05 22:58:03,253 INFO L167 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 32 places, 23 transitions, 71 flow [2022-12-05 22:58:03,253 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 32 places, 23 transitions, 71 flow [2022-12-05 22:58:03,257 INFO L130 PetriNetUnfolder]: 3/33 cut-off events. [2022-12-05 22:58:03,257 INFO L131 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2022-12-05 22:58:03,257 INFO L83 FinitePrefix]: Finished finitePrefix Result has 59 conditions, 33 events. 3/33 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 68 event pairs, 1 based on Foata normal form. 0/31 useless extension candidates. Maximal degree in co-relation 50. Up to 10 conditions per place. [2022-12-05 22:58:03,257 INFO L184 LiptonReduction]: Starting Lipton reduction on Petri net that has 32 places, 23 transitions, 71 flow [2022-12-05 22:58:03,257 INFO L188 LiptonReduction]: Number of co-enabled transitions 232 [2022-12-05 22:58:03,273 INFO L203 LiptonReduction]: Total number of compositions: 0 [2022-12-05 22:58:03,274 INFO L143 eatedLiptonReduction]: Time needed for LBE in milliseconds: 22 [2022-12-05 22:58:03,274 INFO L495 AbstractCegarLoop]: Abstraction has has 32 places, 23 transitions, 71 flow [2022-12-05 22:58:03,275 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 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) [2022-12-05 22:58:03,275 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-05 22:58:03,275 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-05 22:58:03,275 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-05 22:58:03,275 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2022-12-05 22:58:03,275 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-05 22:58:03,275 INFO L85 PathProgramCache]: Analyzing trace with hash -435271201, now seen corresponding path program 1 times [2022-12-05 22:58:03,275 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-05 22:58:03,275 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [553793973] [2022-12-05 22:58:03,275 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-05 22:58:03,276 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-05 22:58:03,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-05 22:58:03,438 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-05 22:58:03,438 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-05 22:58:03,439 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [553793973] [2022-12-05 22:58:03,439 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [553793973] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-05 22:58:03,439 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-05 22:58:03,439 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-05 22:58:03,439 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1914301874] [2022-12-05 22:58:03,439 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-05 22:58:03,439 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-05 22:58:03,439 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-05 22:58:03,440 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-05 22:58:03,440 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-05 22:58:03,440 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 3 out of 21 [2022-12-05 22:58:03,440 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 32 places, 23 transitions, 71 flow. Second operand has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 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) [2022-12-05 22:58:03,440 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-05 22:58:03,440 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 3 of 21 [2022-12-05 22:58:03,440 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-05 22:58:03,513 INFO L130 PetriNetUnfolder]: 314/555 cut-off events. [2022-12-05 22:58:03,513 INFO L131 PetriNetUnfolder]: For 87/87 co-relation queries the response was YES. [2022-12-05 22:58:03,514 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1292 conditions, 555 events. 314/555 cut-off events. For 87/87 co-relation queries the response was YES. Maximal size of possible extension queue 37. Compared 2404 event pairs, 84 based on Foata normal form. 32/582 useless extension candidates. Maximal degree in co-relation 1280. Up to 432 conditions per place. [2022-12-05 22:58:03,516 INFO L137 encePairwiseOnDemand]: 16/21 looper letters, 29 selfloop transitions, 4 changer transitions 0/37 dead transitions. [2022-12-05 22:58:03,516 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 34 places, 37 transitions, 175 flow [2022-12-05 22:58:03,516 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-05 22:58:03,517 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-05 22:58:03,517 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 41 transitions. [2022-12-05 22:58:03,517 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.6507936507936508 [2022-12-05 22:58:03,517 INFO L175 Difference]: Start difference. First operand has 32 places, 23 transitions, 71 flow. Second operand 3 states and 41 transitions. [2022-12-05 22:58:03,517 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 34 places, 37 transitions, 175 flow [2022-12-05 22:58:03,518 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 33 places, 37 transitions, 171 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-12-05 22:58:03,518 INFO L231 Difference]: Finished difference. Result has 34 places, 26 transitions, 94 flow [2022-12-05 22:58:03,518 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=21, PETRI_DIFFERENCE_MINUEND_FLOW=68, PETRI_DIFFERENCE_MINUEND_PLACES=31, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=23, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=19, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=94, PETRI_PLACES=34, PETRI_TRANSITIONS=26} [2022-12-05 22:58:03,519 INFO L294 CegarLoopForPetriNet]: 35 programPoint places, -1 predicate places. [2022-12-05 22:58:03,519 WARN L163 eatedLiptonReduction]: Counterexample is not a run of mAbstraction. Replaying acceptance of the word... [2022-12-05 22:58:03,519 INFO L89 Accepts]: Start accepts. Operand has 34 places, 26 transitions, 94 flow [2022-12-05 22:58:03,520 INFO L95 Accepts]: Finished accepts. [2022-12-05 22:58:03,520 INFO L195 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-05 22:58:03,520 INFO L167 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 34 places, 26 transitions, 94 flow [2022-12-05 22:58:03,520 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 34 places, 26 transitions, 94 flow [2022-12-05 22:58:03,528 INFO L130 PetriNetUnfolder]: 28/92 cut-off events. [2022-12-05 22:58:03,528 INFO L131 PetriNetUnfolder]: For 13/13 co-relation queries the response was YES. [2022-12-05 22:58:03,528 INFO L83 FinitePrefix]: Finished finitePrefix Result has 185 conditions, 92 events. 28/92 cut-off events. For 13/13 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 346 event pairs, 13 based on Foata normal form. 0/83 useless extension candidates. Maximal degree in co-relation 174. Up to 40 conditions per place. [2022-12-05 22:58:03,529 INFO L184 LiptonReduction]: Starting Lipton reduction on Petri net that has 34 places, 26 transitions, 94 flow [2022-12-05 22:58:03,529 INFO L188 LiptonReduction]: Number of co-enabled transitions 264 [2022-12-05 22:58:03,537 INFO L203 LiptonReduction]: Total number of compositions: 0 [2022-12-05 22:58:03,538 INFO L143 eatedLiptonReduction]: Time needed for LBE in milliseconds: 19 [2022-12-05 22:58:03,538 INFO L495 AbstractCegarLoop]: Abstraction has has 34 places, 26 transitions, 94 flow [2022-12-05 22:58:03,538 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 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) [2022-12-05 22:58:03,538 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-05 22:58:03,538 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-05 22:58:03,538 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-12-05 22:58:03,539 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2022-12-05 22:58:03,539 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-05 22:58:03,539 INFO L85 PathProgramCache]: Analyzing trace with hash -987219309, now seen corresponding path program 1 times [2022-12-05 22:58:03,539 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-05 22:58:03,539 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [796798075] [2022-12-05 22:58:03,539 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-05 22:58:03,539 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-05 22:58:03,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-05 22:58:03,662 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-05 22:58:03,663 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-05 22:58:03,663 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [796798075] [2022-12-05 22:58:03,663 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [796798075] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-05 22:58:03,663 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-05 22:58:03,663 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-05 22:58:03,663 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1908412909] [2022-12-05 22:58:03,663 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-05 22:58:03,663 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-05 22:58:03,663 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-05 22:58:03,664 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-05 22:58:03,664 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-05 22:58:03,664 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 2 out of 21 [2022-12-05 22:58:03,664 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 34 places, 26 transitions, 94 flow. Second operand has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 3 states have internal predecessors, (20), 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) [2022-12-05 22:58:03,664 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-05 22:58:03,664 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 2 of 21 [2022-12-05 22:58:03,664 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-05 22:58:03,765 INFO L130 PetriNetUnfolder]: 466/822 cut-off events. [2022-12-05 22:58:03,766 INFO L131 PetriNetUnfolder]: For 264/264 co-relation queries the response was YES. [2022-12-05 22:58:03,767 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2220 conditions, 822 events. 466/822 cut-off events. For 264/264 co-relation queries the response was YES. Maximal size of possible extension queue 50. Compared 3973 event pairs, 206 based on Foata normal form. 18/833 useless extension candidates. Maximal degree in co-relation 2206. Up to 486 conditions per place. [2022-12-05 22:58:03,769 INFO L137 encePairwiseOnDemand]: 18/21 looper letters, 36 selfloop transitions, 3 changer transitions 1/42 dead transitions. [2022-12-05 22:58:03,769 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 36 places, 42 transitions, 228 flow [2022-12-05 22:58:03,769 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-05 22:58:03,770 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-05 22:58:03,770 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 40 transitions. [2022-12-05 22:58:03,770 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.6349206349206349 [2022-12-05 22:58:03,770 INFO L175 Difference]: Start difference. First operand has 34 places, 26 transitions, 94 flow. Second operand 3 states and 40 transitions. [2022-12-05 22:58:03,770 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 36 places, 42 transitions, 228 flow [2022-12-05 22:58:03,771 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 35 places, 42 transitions, 221 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-12-05 22:58:03,772 INFO L231 Difference]: Finished difference. Result has 36 places, 26 transitions, 101 flow [2022-12-05 22:58:03,772 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=21, PETRI_DIFFERENCE_MINUEND_FLOW=90, PETRI_DIFFERENCE_MINUEND_PLACES=33, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=26, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=23, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=101, PETRI_PLACES=36, PETRI_TRANSITIONS=26} [2022-12-05 22:58:03,772 INFO L294 CegarLoopForPetriNet]: 35 programPoint places, 1 predicate places. [2022-12-05 22:58:03,772 WARN L163 eatedLiptonReduction]: Counterexample is not a run of mAbstraction. Replaying acceptance of the word... [2022-12-05 22:58:03,772 INFO L89 Accepts]: Start accepts. Operand has 36 places, 26 transitions, 101 flow [2022-12-05 22:58:03,773 INFO L95 Accepts]: Finished accepts. [2022-12-05 22:58:03,773 INFO L195 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-05 22:58:03,773 INFO L167 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 36 places, 26 transitions, 101 flow [2022-12-05 22:58:03,773 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 36 places, 26 transitions, 101 flow [2022-12-05 22:58:03,803 INFO L130 PetriNetUnfolder]: 30/100 cut-off events. [2022-12-05 22:58:03,803 INFO L131 PetriNetUnfolder]: For 47/57 co-relation queries the response was YES. [2022-12-05 22:58:03,803 INFO L83 FinitePrefix]: Finished finitePrefix Result has 215 conditions, 100 events. 30/100 cut-off events. For 47/57 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 416 event pairs, 13 based on Foata normal form. 0/91 useless extension candidates. Maximal degree in co-relation 203. Up to 60 conditions per place. [2022-12-05 22:58:03,804 INFO L184 LiptonReduction]: Starting Lipton reduction on Petri net that has 36 places, 26 transitions, 101 flow [2022-12-05 22:58:03,804 INFO L188 LiptonReduction]: Number of co-enabled transitions 264 [2022-12-05 22:58:03,805 INFO L203 LiptonReduction]: Total number of compositions: 0 [2022-12-05 22:58:03,806 INFO L143 eatedLiptonReduction]: Time needed for LBE in milliseconds: 34 [2022-12-05 22:58:03,806 INFO L495 AbstractCegarLoop]: Abstraction has has 36 places, 26 transitions, 101 flow [2022-12-05 22:58:03,806 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 3 states have internal predecessors, (20), 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) [2022-12-05 22:58:03,806 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-05 22:58:03,806 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-05 22:58:03,806 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-12-05 22:58:03,806 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2022-12-05 22:58:03,806 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-05 22:58:03,807 INFO L85 PathProgramCache]: Analyzing trace with hash -1486855190, now seen corresponding path program 1 times [2022-12-05 22:58:03,807 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-05 22:58:03,807 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1822777295] [2022-12-05 22:58:03,807 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-05 22:58:03,807 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-05 22:58:03,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-05 22:58:03,931 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-05 22:58:03,931 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-05 22:58:03,931 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1822777295] [2022-12-05 22:58:03,931 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1822777295] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-05 22:58:03,931 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-05 22:58:03,931 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-05 22:58:03,931 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [732323354] [2022-12-05 22:58:03,931 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-05 22:58:03,932 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-05 22:58:03,932 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-05 22:58:03,932 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-05 22:58:03,932 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-12-05 22:58:03,932 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 3 out of 21 [2022-12-05 22:58:03,932 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 36 places, 26 transitions, 101 flow. Second operand has 4 states, 4 states have (on average 6.5) internal successors, (26), 4 states have internal predecessors, (26), 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) [2022-12-05 22:58:03,932 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-05 22:58:03,933 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 3 of 21 [2022-12-05 22:58:03,933 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-05 22:58:04,008 INFO L130 PetriNetUnfolder]: 200/396 cut-off events. [2022-12-05 22:58:04,008 INFO L131 PetriNetUnfolder]: For 150/151 co-relation queries the response was YES. [2022-12-05 22:58:04,009 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1081 conditions, 396 events. 200/396 cut-off events. For 150/151 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 1727 event pairs, 54 based on Foata normal form. 40/430 useless extension candidates. Maximal degree in co-relation 1066. Up to 144 conditions per place. [2022-12-05 22:58:04,010 INFO L137 encePairwiseOnDemand]: 16/21 looper letters, 37 selfloop transitions, 7 changer transitions 0/48 dead transitions. [2022-12-05 22:58:04,010 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 39 places, 48 transitions, 259 flow [2022-12-05 22:58:04,010 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-05 22:58:04,010 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-12-05 22:58:04,011 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 55 transitions. [2022-12-05 22:58:04,011 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.6547619047619048 [2022-12-05 22:58:04,011 INFO L175 Difference]: Start difference. First operand has 36 places, 26 transitions, 101 flow. Second operand 4 states and 55 transitions. [2022-12-05 22:58:04,011 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 39 places, 48 transitions, 259 flow [2022-12-05 22:58:04,012 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 38 places, 48 transitions, 248 flow, removed 3 selfloop flow, removed 1 redundant places. [2022-12-05 22:58:04,013 INFO L231 Difference]: Finished difference. Result has 39 places, 29 transitions, 136 flow [2022-12-05 22:58:04,013 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=21, PETRI_DIFFERENCE_MINUEND_FLOW=96, PETRI_DIFFERENCE_MINUEND_PLACES=35, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=26, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=19, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=136, PETRI_PLACES=39, PETRI_TRANSITIONS=29} [2022-12-05 22:58:04,013 INFO L294 CegarLoopForPetriNet]: 35 programPoint places, 4 predicate places. [2022-12-05 22:58:04,013 WARN L163 eatedLiptonReduction]: Counterexample is not a run of mAbstraction. Replaying acceptance of the word... [2022-12-05 22:58:04,013 INFO L89 Accepts]: Start accepts. Operand has 39 places, 29 transitions, 136 flow [2022-12-05 22:58:04,014 INFO L95 Accepts]: Finished accepts. [2022-12-05 22:58:04,014 INFO L195 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-05 22:58:04,014 INFO L167 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 39 places, 29 transitions, 136 flow [2022-12-05 22:58:04,014 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 39 places, 29 transitions, 136 flow [2022-12-05 22:58:04,020 INFO L130 PetriNetUnfolder]: 16/71 cut-off events. [2022-12-05 22:58:04,020 INFO L131 PetriNetUnfolder]: For 39/58 co-relation queries the response was YES. [2022-12-05 22:58:04,021 INFO L83 FinitePrefix]: Finished finitePrefix Result has 199 conditions, 71 events. 16/71 cut-off events. For 39/58 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 224 event pairs, 2 based on Foata normal form. 3/69 useless extension candidates. Maximal degree in co-relation 185. Up to 39 conditions per place. [2022-12-05 22:58:04,021 INFO L184 LiptonReduction]: Starting Lipton reduction on Petri net that has 39 places, 29 transitions, 136 flow [2022-12-05 22:58:04,021 INFO L188 LiptonReduction]: Number of co-enabled transitions 256 [2022-12-05 22:58:04,022 INFO L203 LiptonReduction]: Total number of compositions: 0 [2022-12-05 22:58:04,022 INFO L143 eatedLiptonReduction]: Time needed for LBE in milliseconds: 9 [2022-12-05 22:58:04,023 INFO L495 AbstractCegarLoop]: Abstraction has has 39 places, 29 transitions, 136 flow [2022-12-05 22:58:04,023 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.5) internal successors, (26), 4 states have internal predecessors, (26), 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) [2022-12-05 22:58:04,023 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-05 22:58:04,023 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-05 22:58:04,023 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-12-05 22:58:04,023 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2022-12-05 22:58:04,023 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-05 22:58:04,023 INFO L85 PathProgramCache]: Analyzing trace with hash 1190511134, now seen corresponding path program 1 times [2022-12-05 22:58:04,023 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-05 22:58:04,023 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [169399712] [2022-12-05 22:58:04,024 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-05 22:58:04,024 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-05 22:58:04,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-05 22:58:04,173 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-05 22:58:04,173 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-05 22:58:04,173 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [169399712] [2022-12-05 22:58:04,173 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [169399712] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-05 22:58:04,173 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-05 22:58:04,173 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-05 22:58:04,173 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2039631401] [2022-12-05 22:58:04,173 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-05 22:58:04,174 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-05 22:58:04,174 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-05 22:58:04,174 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-05 22:58:04,174 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-12-05 22:58:04,174 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 3 out of 21 [2022-12-05 22:58:04,174 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 39 places, 29 transitions, 136 flow. Second operand has 5 states, 5 states have (on average 6.2) internal successors, (31), 5 states have internal predecessors, (31), 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) [2022-12-05 22:58:04,174 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-05 22:58:04,174 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 3 of 21 [2022-12-05 22:58:04,175 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-05 22:58:04,247 INFO L130 PetriNetUnfolder]: 162/317 cut-off events. [2022-12-05 22:58:04,247 INFO L131 PetriNetUnfolder]: For 337/337 co-relation queries the response was YES. [2022-12-05 22:58:04,247 INFO L83 FinitePrefix]: Finished finitePrefix Result has 979 conditions, 317 events. 162/317 cut-off events. For 337/337 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 1356 event pairs, 49 based on Foata normal form. 16/327 useless extension candidates. Maximal degree in co-relation 962. Up to 133 conditions per place. [2022-12-05 22:58:04,248 INFO L137 encePairwiseOnDemand]: 16/21 looper letters, 31 selfloop transitions, 10 changer transitions 4/48 dead transitions. [2022-12-05 22:58:04,248 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 43 places, 48 transitions, 276 flow [2022-12-05 22:58:04,249 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-05 22:58:04,249 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-12-05 22:58:04,249 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 58 transitions. [2022-12-05 22:58:04,249 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.5523809523809524 [2022-12-05 22:58:04,249 INFO L175 Difference]: Start difference. First operand has 39 places, 29 transitions, 136 flow. Second operand 5 states and 58 transitions. [2022-12-05 22:58:04,249 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 43 places, 48 transitions, 276 flow [2022-12-05 22:58:04,251 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 40 places, 48 transitions, 254 flow, removed 5 selfloop flow, removed 3 redundant places. [2022-12-05 22:58:04,251 INFO L231 Difference]: Finished difference. Result has 41 places, 27 transitions, 134 flow [2022-12-05 22:58:04,251 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=21, PETRI_DIFFERENCE_MINUEND_FLOW=116, PETRI_DIFFERENCE_MINUEND_PLACES=36, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=29, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=19, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=134, PETRI_PLACES=41, PETRI_TRANSITIONS=27} [2022-12-05 22:58:04,252 INFO L294 CegarLoopForPetriNet]: 35 programPoint places, 6 predicate places. [2022-12-05 22:58:04,252 WARN L163 eatedLiptonReduction]: Counterexample is not a run of mAbstraction. Replaying acceptance of the word... [2022-12-05 22:58:04,252 INFO L89 Accepts]: Start accepts. Operand has 41 places, 27 transitions, 134 flow [2022-12-05 22:58:04,252 INFO L95 Accepts]: Finished accepts. [2022-12-05 22:58:04,253 INFO L195 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-05 22:58:04,253 INFO L167 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 41 places, 27 transitions, 134 flow [2022-12-05 22:58:04,253 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 41 places, 27 transitions, 134 flow [2022-12-05 22:58:04,256 INFO L130 PetriNetUnfolder]: 5/30 cut-off events. [2022-12-05 22:58:04,256 INFO L131 PetriNetUnfolder]: For 26/29 co-relation queries the response was YES. [2022-12-05 22:58:04,256 INFO L83 FinitePrefix]: Finished finitePrefix Result has 86 conditions, 30 events. 5/30 cut-off events. For 26/29 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 32 event pairs, 0 based on Foata normal form. 1/30 useless extension candidates. Maximal degree in co-relation 72. Up to 11 conditions per place. [2022-12-05 22:58:04,257 INFO L184 LiptonReduction]: Starting Lipton reduction on Petri net that has 41 places, 27 transitions, 134 flow [2022-12-05 22:58:04,257 INFO L188 LiptonReduction]: Number of co-enabled transitions 148 Received shutdown request... [2022-12-05 23:12:43,465 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (5 of 6 remaining) [2022-12-05 23:12:43,465 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-12-05 23:12:43,465 WARN L619 AbstractCegarLoop]: Verification canceled: while PolyPacSimplificationTermWalker was simplifying a ATOM-1 term,while PolyPacSimplificationTermWalker was simplifying 4 xjuncts wrt. a ATOM-1 context. [2022-12-05 23:12:43,466 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location P2Err0ASSERT_VIOLATIONERROR_FUNCTION (4 of 6 remaining) [2022-12-05 23:12:43,466 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (3 of 6 remaining) [2022-12-05 23:12:43,467 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 6 remaining) [2022-12-05 23:12:43,467 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 6 remaining) [2022-12-05 23:12:43,467 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location P2Err0ASSERT_VIOLATIONERROR_FUNCTION (0 of 6 remaining) [2022-12-05 23:12:43,467 INFO L458 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1] [2022-12-05 23:12:43,470 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-12-05 23:12:43,470 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-05 23:12:43,475 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 05.12 11:12:43 BasicIcfg [2022-12-05 23:12:43,475 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-05 23:12:43,476 INFO L158 Benchmark]: Toolchain (without parser) took 886816.15ms. Allocated memory was 206.6MB in the beginning and 1.1GB in the end (delta: 850.4MB). Free memory was 181.2MB in the beginning and 835.0MB in the end (delta: -653.8MB). Peak memory consumption was 649.7MB. Max. memory is 8.0GB. [2022-12-05 23:12:43,476 INFO L158 Benchmark]: CDTParser took 0.09ms. Allocated memory is still 206.6MB. Free memory is still 183.7MB. There was no memory consumed. Max. memory is 8.0GB. [2022-12-05 23:12:43,476 INFO L158 Benchmark]: CACSL2BoogieTranslator took 341.85ms. Allocated memory is still 206.6MB. Free memory was 181.2MB in the beginning and 153.9MB in the end (delta: 27.3MB). Peak memory consumption was 27.3MB. Max. memory is 8.0GB. [2022-12-05 23:12:43,476 INFO L158 Benchmark]: Boogie Procedure Inliner took 71.51ms. Allocated memory is still 206.6MB. Free memory was 153.9MB in the beginning and 150.2MB in the end (delta: 3.7MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. [2022-12-05 23:12:43,476 INFO L158 Benchmark]: Boogie Preprocessor took 39.94ms. Allocated memory is still 206.6MB. Free memory was 150.2MB in the beginning and 148.6MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-12-05 23:12:43,477 INFO L158 Benchmark]: RCFGBuilder took 712.94ms. Allocated memory was 206.6MB in the beginning and 294.6MB in the end (delta: 88.1MB). Free memory was 148.1MB in the beginning and 263.3MB in the end (delta: -115.2MB). Peak memory consumption was 35.3MB. Max. memory is 8.0GB. [2022-12-05 23:12:43,478 INFO L158 Benchmark]: TraceAbstraction took 885645.96ms. Allocated memory was 294.6MB in the beginning and 1.1GB in the end (delta: 762.3MB). Free memory was 262.8MB in the beginning and 835.0MB in the end (delta: -572.2MB). Peak memory consumption was 643.8MB. Max. memory is 8.0GB. [2022-12-05 23:12:43,479 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.09ms. Allocated memory is still 206.6MB. Free memory is still 183.7MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 341.85ms. Allocated memory is still 206.6MB. Free memory was 181.2MB in the beginning and 153.9MB in the end (delta: 27.3MB). Peak memory consumption was 27.3MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 71.51ms. Allocated memory is still 206.6MB. Free memory was 153.9MB in the beginning and 150.2MB in the end (delta: 3.7MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 39.94ms. Allocated memory is still 206.6MB. Free memory was 150.2MB in the beginning and 148.6MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * RCFGBuilder took 712.94ms. Allocated memory was 206.6MB in the beginning and 294.6MB in the end (delta: 88.1MB). Free memory was 148.1MB in the beginning and 263.3MB in the end (delta: -115.2MB). Peak memory consumption was 35.3MB. Max. memory is 8.0GB. * TraceAbstraction took 885645.96ms. Allocated memory was 294.6MB in the beginning and 1.1GB in the end (delta: 762.3MB). Free memory was 262.8MB in the beginning and 835.0MB in the end (delta: -572.2MB). Peak memory consumption was 643.8MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 3.9s, 113 PlacesBefore, 35 PlacesAfterwards, 105 TransitionsBefore, 26 TransitionsAfterwards, 1860 CoEnabledTransitionPairs, 3 FixpointIterations, 0 TrivialSequentialCompositions, 2 ConcurrentSequentialCompositions, 38 TrivialYvCompositions, 42 ConcurrentYvCompositions, 1 ChoiceCompositions, 83 TotalNumberOfCompositions, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 1526, independent: 1438, independent conditional: 1438, independent unconditional: 0, dependent: 88, dependent conditional: 88, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 1526, independent: 1438, independent conditional: 0, independent unconditional: 1438, dependent: 88, dependent conditional: 0, dependent unconditional: 88, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 1526, independent: 1438, independent conditional: 0, independent unconditional: 1438, dependent: 88, dependent conditional: 0, dependent unconditional: 88, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 1526, independent: 1438, independent conditional: 0, independent unconditional: 1438, dependent: 88, dependent conditional: 0, dependent unconditional: 88, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 1187, independent: 1150, independent conditional: 0, independent unconditional: 1150, dependent: 37, dependent conditional: 0, dependent unconditional: 37, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 1187, independent: 1103, independent conditional: 0, independent unconditional: 1103, dependent: 84, dependent conditional: 0, dependent unconditional: 84, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 84, independent: 47, independent conditional: 0, independent unconditional: 47, dependent: 37, dependent conditional: 0, dependent unconditional: 37, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 184, independent: 39, independent conditional: 0, independent unconditional: 39, dependent: 146, dependent conditional: 0, dependent unconditional: 146, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 1526, independent: 288, independent conditional: 0, independent unconditional: 288, dependent: 51, dependent conditional: 0, dependent unconditional: 51, unknown: 1187, unknown conditional: 0, unknown unconditional: 1187] , Statistics on independence cache: Total cache size (in pairs): 1765, Positive cache size: 1728, Positive conditional cache size: 0, Positive unconditional cache size: 1728, Negative cache size: 37, Negative conditional cache size: 0, Negative unconditional cache size: 37, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 0, Maximal queried relation: -1 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 0.1s, 30 PlacesBefore, 30 PlacesAfterwards, 21 TransitionsBefore, 21 TransitionsAfterwards, 206 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 104, independent: 82, independent conditional: 82, independent unconditional: 0, dependent: 22, dependent conditional: 22, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 104, independent: 82, independent conditional: 7, independent unconditional: 75, dependent: 22, dependent conditional: 3, dependent unconditional: 19, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 104, independent: 82, independent conditional: 7, independent unconditional: 75, dependent: 22, dependent conditional: 3, dependent unconditional: 19, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 104, independent: 82, independent conditional: 7, independent unconditional: 75, dependent: 22, dependent conditional: 3, dependent unconditional: 19, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 94, independent: 75, independent conditional: 6, independent unconditional: 69, dependent: 19, dependent conditional: 3, dependent unconditional: 16, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 94, independent: 72, independent conditional: 0, independent unconditional: 72, dependent: 22, dependent conditional: 0, dependent unconditional: 22, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 22, independent: 3, independent conditional: 0, independent unconditional: 3, dependent: 19, dependent conditional: 3, dependent unconditional: 16, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 106, independent: 3, independent conditional: 0, independent unconditional: 3, dependent: 103, dependent conditional: 19, dependent unconditional: 84, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 104, independent: 7, independent conditional: 1, independent unconditional: 6, dependent: 3, dependent conditional: 0, dependent unconditional: 3, unknown: 94, unknown conditional: 9, unknown unconditional: 85] , Statistics on independence cache: Total cache size (in pairs): 94, Positive cache size: 75, Positive conditional cache size: 6, Positive unconditional cache size: 69, Negative cache size: 19, Negative conditional cache size: 3, Negative unconditional cache size: 16, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 0, Maximal queried relation: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 0.0s, 31 PlacesBefore, 31 PlacesAfterwards, 21 TransitionsBefore, 21 TransitionsAfterwards, 202 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 107, independent: 87, independent conditional: 87, independent unconditional: 0, dependent: 20, dependent conditional: 20, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 107, independent: 87, independent conditional: 6, independent unconditional: 81, dependent: 20, dependent conditional: 3, dependent unconditional: 17, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 107, independent: 87, independent conditional: 0, independent unconditional: 87, dependent: 20, dependent conditional: 0, dependent unconditional: 20, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 107, independent: 87, independent conditional: 0, independent unconditional: 87, dependent: 20, dependent conditional: 0, dependent unconditional: 20, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 14, independent: 12, independent conditional: 0, independent unconditional: 12, dependent: 2, dependent conditional: 0, dependent unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 14, independent: 12, independent conditional: 0, independent unconditional: 12, dependent: 2, dependent conditional: 0, dependent unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 2, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 2, dependent conditional: 0, dependent unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 7, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 7, dependent conditional: 0, dependent unconditional: 7, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 107, independent: 75, independent conditional: 0, independent unconditional: 75, dependent: 18, dependent conditional: 0, dependent unconditional: 18, unknown: 14, unknown conditional: 0, unknown unconditional: 14] , Statistics on independence cache: Total cache size (in pairs): 108, Positive cache size: 87, Positive conditional cache size: 6, Positive unconditional cache size: 81, Negative cache size: 21, Negative conditional cache size: 3, Negative unconditional cache size: 18, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 9, Maximal queried relation: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 0.0s, 32 PlacesBefore, 32 PlacesAfterwards, 23 TransitionsBefore, 23 TransitionsAfterwards, 232 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 106, independent: 88, independent conditional: 88, independent unconditional: 0, dependent: 18, dependent conditional: 18, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 106, independent: 88, independent conditional: 9, independent unconditional: 79, dependent: 18, dependent conditional: 0, dependent unconditional: 18, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 106, independent: 88, independent conditional: 0, independent unconditional: 88, dependent: 18, dependent conditional: 0, dependent unconditional: 18, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 106, independent: 88, independent conditional: 0, independent unconditional: 88, dependent: 18, dependent conditional: 0, dependent unconditional: 18, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 13, independent: 9, independent conditional: 0, independent unconditional: 9, dependent: 4, dependent conditional: 0, dependent unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 13, independent: 9, independent conditional: 0, independent unconditional: 9, dependent: 4, dependent conditional: 0, dependent unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 4, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 4, dependent conditional: 0, dependent unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 15, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 15, dependent conditional: 0, dependent unconditional: 15, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 106, independent: 79, independent conditional: 0, independent unconditional: 79, dependent: 14, dependent conditional: 0, dependent unconditional: 14, unknown: 13, unknown conditional: 0, unknown unconditional: 13] , Statistics on independence cache: Total cache size (in pairs): 121, Positive cache size: 96, Positive conditional cache size: 6, Positive unconditional cache size: 90, Negative cache size: 25, Negative conditional cache size: 3, Negative unconditional cache size: 22, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 9, Maximal queried relation: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 0.0s, 34 PlacesBefore, 34 PlacesAfterwards, 26 TransitionsBefore, 26 TransitionsAfterwards, 264 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 98, independent: 84, independent conditional: 84, independent unconditional: 0, dependent: 14, dependent conditional: 14, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 98, independent: 84, independent conditional: 25, independent unconditional: 59, dependent: 14, dependent conditional: 0, dependent unconditional: 14, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 98, independent: 84, independent conditional: 11, independent unconditional: 73, dependent: 14, dependent conditional: 0, dependent unconditional: 14, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 98, independent: 84, independent conditional: 11, independent unconditional: 73, dependent: 14, dependent conditional: 0, dependent unconditional: 14, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 10, independent: 8, independent conditional: 2, independent unconditional: 6, dependent: 2, dependent conditional: 0, dependent unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 10, independent: 8, independent conditional: 0, independent unconditional: 8, dependent: 2, dependent conditional: 0, dependent unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 2, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 2, dependent conditional: 0, dependent unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 7, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 7, dependent conditional: 0, dependent unconditional: 7, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 98, independent: 76, independent conditional: 9, independent unconditional: 67, dependent: 12, dependent conditional: 0, dependent unconditional: 12, unknown: 10, unknown conditional: 2, unknown unconditional: 8] , Statistics on independence cache: Total cache size (in pairs): 131, Positive cache size: 104, Positive conditional cache size: 8, Positive unconditional cache size: 96, Negative cache size: 27, Negative conditional cache size: 3, Negative unconditional cache size: 24, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 14, Maximal queried relation: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 0.0s, 36 PlacesBefore, 36 PlacesAfterwards, 26 TransitionsBefore, 26 TransitionsAfterwards, 264 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 95, independent: 79, independent conditional: 79, independent unconditional: 0, dependent: 16, dependent conditional: 16, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 95, independent: 79, independent conditional: 28, independent unconditional: 51, dependent: 16, dependent conditional: 0, dependent unconditional: 16, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 95, independent: 79, independent conditional: 13, independent unconditional: 66, dependent: 16, dependent conditional: 0, dependent unconditional: 16, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 95, independent: 79, independent conditional: 13, independent unconditional: 66, dependent: 16, dependent conditional: 0, dependent unconditional: 16, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 95, independent: 79, independent conditional: 13, independent unconditional: 66, dependent: 16, dependent conditional: 0, dependent unconditional: 16, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 131, Positive cache size: 104, Positive conditional cache size: 8, Positive unconditional cache size: 96, Negative cache size: 27, Negative conditional cache size: 3, Negative unconditional cache size: 24, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 15, Maximal queried relation: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 0.0s, 39 PlacesBefore, 39 PlacesAfterwards, 29 TransitionsBefore, 29 TransitionsAfterwards, 256 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 111, independent: 93, independent conditional: 93, independent unconditional: 0, dependent: 18, dependent conditional: 18, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 111, independent: 93, independent conditional: 35, independent unconditional: 58, dependent: 18, dependent conditional: 0, dependent unconditional: 18, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 111, independent: 93, independent conditional: 15, independent unconditional: 78, dependent: 18, dependent conditional: 0, dependent unconditional: 18, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 111, independent: 93, independent conditional: 15, independent unconditional: 78, dependent: 18, dependent conditional: 0, dependent unconditional: 18, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 111, independent: 93, independent conditional: 15, independent unconditional: 78, dependent: 18, dependent conditional: 0, dependent unconditional: 18, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 131, Positive cache size: 104, Positive conditional cache size: 8, Positive unconditional cache size: 96, Negative cache size: 27, Negative conditional cache size: 3, Negative unconditional cache size: 24, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 20, Maximal queried relation: 0 - TimeoutResultAtElement [Line: 18]: Timeout (TraceAbstraction) Unable to prove that call to reach_error is unreachable Cancelled while PolyPacSimplificationTermWalker was simplifying a ATOM-1 term,while PolyPacSimplificationTermWalker was simplifying 4 xjuncts wrt. a ATOM-1 context. - TimeoutResultAtElement [Line: 18]: Timeout (TraceAbstraction) Unable to prove that call to reach_error is unreachable Cancelled while PolyPacSimplificationTermWalker was simplifying a ATOM-1 term,while PolyPacSimplificationTermWalker was simplifying 4 xjuncts wrt. a ATOM-1 context. - TimeoutResultAtElement [Line: 832]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while PolyPacSimplificationTermWalker was simplifying a ATOM-1 term,while PolyPacSimplificationTermWalker was simplifying 4 xjuncts wrt. a ATOM-1 context. - TimeoutResultAtElement [Line: 834]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while PolyPacSimplificationTermWalker was simplifying a ATOM-1 term,while PolyPacSimplificationTermWalker was simplifying 4 xjuncts wrt. a ATOM-1 context. - TimeoutResultAtElement [Line: 836]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while PolyPacSimplificationTermWalker was simplifying a ATOM-1 term,while PolyPacSimplificationTermWalker was simplifying 4 xjuncts wrt. a ATOM-1 context. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 7 procedures, 135 locations, 6 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 885.5s, OverallIterations: 7, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 4.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 79 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 79 mSDsluCounter, 2 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 13 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 279 IncrementalHoareTripleChecker+Invalid, 292 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 13 mSolverCounterUnsat, 2 mSDtfsCounter, 279 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 14 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=136occurred in iteration=6, InterpolantAutomatonStates: 24, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.9s InterpolantComputationTime, 86 NumberOfCodeBlocks, 86 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 79 ConstructedInterpolants, 0 QuantifiedInterpolants, 209 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 7 InterpolantComputations, 7 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown