/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-SemanticLbe.epf --traceabstraction.use.on-demand.petri.net.difference true --traceabstraction.size.reduction.to.apply.after.petri.net.difference REMOVE_DEAD -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread-wmm/safe019_power.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.repeated-lipton-a802222-m [2022-12-12 21:42:50,770 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-12 21:42:50,771 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-12 21:42:50,799 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-12 21:42:50,801 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-12 21:42:50,803 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-12 21:42:50,805 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-12 21:42:50,808 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-12 21:42:50,809 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-12 21:42:50,809 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-12 21:42:50,810 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-12 21:42:50,811 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-12 21:42:50,811 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-12 21:42:50,812 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-12 21:42:50,812 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-12 21:42:50,813 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-12 21:42:50,813 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-12 21:42:50,814 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-12 21:42:50,815 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-12 21:42:50,816 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-12 21:42:50,817 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-12 21:42:50,823 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-12 21:42:50,823 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-12 21:42:50,824 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-12 21:42:50,826 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-12 21:42:50,826 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-12 21:42:50,826 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-12 21:42:50,827 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-12 21:42:50,827 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-12 21:42:50,828 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-12 21:42:50,828 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-12 21:42:50,828 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-12 21:42:50,829 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-12 21:42:50,829 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-12 21:42:50,830 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-12 21:42:50,830 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-12 21:42:50,830 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-12 21:42:50,831 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-12 21:42:50,831 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-12 21:42:50,831 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-12 21:42:50,832 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-12 21:42:50,841 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-SemanticLbe.epf [2022-12-12 21:42:50,863 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-12 21:42:50,863 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-12 21:42:50,865 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-12 21:42:50,865 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-12 21:42:50,865 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-12 21:42:50,866 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-12 21:42:50,866 INFO L138 SettingsManager]: * Use SBE=true [2022-12-12 21:42:50,866 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-12 21:42:50,866 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-12 21:42:50,866 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-12 21:42:50,867 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-12 21:42:50,867 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-12 21:42:50,867 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-12 21:42:50,867 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-12 21:42:50,867 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-12 21:42:50,868 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-12 21:42:50,868 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-12 21:42:50,868 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-12 21:42:50,868 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-12 21:42:50,868 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-12 21:42:50,868 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-12 21:42:50,868 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-12-12 21:42:50,868 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-12 21:42:50,868 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-12 21:42:50,881 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-12 21:42:50,881 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-12 21:42:50,881 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-12 21:42:50,881 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-12 21:42:50,881 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-12 21:42:50,882 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-12 21:42:50,882 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use on-demand Petri net difference -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Size reduction to apply after Petri net difference -> REMOVE_DEAD [2022-12-12 21:42:51,153 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-12 21:42:51,179 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-12 21:42:51,181 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-12 21:42:51,182 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-12 21:42:51,182 INFO L275 PluginConnector]: CDTParser initialized [2022-12-12 21:42:51,183 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe019_power.opt.i [2022-12-12 21:42:52,224 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-12 21:42:52,479 INFO L351 CDTParser]: Found 1 translation units. [2022-12-12 21:42:52,479 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe019_power.opt.i [2022-12-12 21:42:52,496 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/68b72df66/f928a4583eaa4630adaf61376079c5aa/FLAG85c25d60c [2022-12-12 21:42:52,507 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/68b72df66/f928a4583eaa4630adaf61376079c5aa [2022-12-12 21:42:52,509 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-12 21:42:52,510 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-12-12 21:42:52,510 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-12 21:42:52,510 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-12 21:42:52,512 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-12 21:42:52,513 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.12 09:42:52" (1/1) ... [2022-12-12 21:42:52,513 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2361fc64 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 09:42:52, skipping insertion in model container [2022-12-12 21:42:52,513 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.12 09:42:52" (1/1) ... [2022-12-12 21:42:52,518 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-12 21:42:52,560 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-12 21:42:52,651 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/safe019_power.opt.i[994,1007] [2022-12-12 21:42:52,781 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 21:42:52,782 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 21:42:52,782 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 21:42:52,796 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 21:42:52,796 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 21:42:52,797 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 21:42:52,797 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 21:42:52,797 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 21:42:52,801 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 21:42:52,803 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 21:42:52,803 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 21:42:52,804 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 21:42:52,804 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 21:42:52,805 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 21:42:52,805 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 21:42:52,813 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 21:42:52,813 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 21:42:52,813 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 21:42:52,813 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 21:42:52,815 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 21:42:52,815 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 21:42:52,815 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 21:42:52,815 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 21:42:52,816 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 21:42:52,816 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 21:42:52,817 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 21:42:52,817 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 21:42:52,817 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 21:42:52,823 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 21:42:52,823 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 21:42:52,823 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 21:42:52,825 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 21:42:52,825 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 21:42:52,825 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 21:42:52,826 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-12 21:42:52,834 INFO L203 MainTranslator]: Completed pre-run [2022-12-12 21:42:52,841 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/safe019_power.opt.i[994,1007] [2022-12-12 21:42:52,865 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 21:42:52,866 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 21:42:52,866 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 21:42:52,869 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 21:42:52,869 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 21:42:52,870 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 21:42:52,870 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 21:42:52,870 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 21:42:52,870 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 21:42:52,873 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 21:42:52,873 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 21:42:52,877 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 21:42:52,877 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 21:42:52,877 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 21:42:52,878 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 21:42:52,893 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 21:42:52,894 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 21:42:52,894 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 21:42:52,894 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 21:42:52,895 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 21:42:52,895 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 21:42:52,895 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 21:42:52,896 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 21:42:52,896 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 21:42:52,896 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 21:42:52,897 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 21:42:52,897 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 21:42:52,898 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 21:42:52,900 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 21:42:52,900 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 21:42:52,900 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 21:42:52,901 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 21:42:52,901 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 21:42:52,902 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 21:42:52,902 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-12 21:42:52,933 INFO L208 MainTranslator]: Completed translation [2022-12-12 21:42:52,933 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 09:42:52 WrapperNode [2022-12-12 21:42:52,933 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-12 21:42:52,934 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-12 21:42:52,935 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-12 21:42:52,935 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-12 21:42:52,939 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 09:42:52" (1/1) ... [2022-12-12 21:42:52,954 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 09:42:52" (1/1) ... [2022-12-12 21:42:52,971 INFO L138 Inliner]: procedures = 177, calls = 88, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 193 [2022-12-12 21:42:52,971 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-12 21:42:52,972 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-12 21:42:52,972 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-12 21:42:52,972 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-12 21:42:52,981 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 09:42:52" (1/1) ... [2022-12-12 21:42:52,981 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 09:42:52" (1/1) ... [2022-12-12 21:42:52,994 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 09:42:52" (1/1) ... [2022-12-12 21:42:52,995 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 09:42:52" (1/1) ... [2022-12-12 21:42:53,017 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 09:42:52" (1/1) ... [2022-12-12 21:42:53,019 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 09:42:52" (1/1) ... [2022-12-12 21:42:53,020 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 09:42:52" (1/1) ... [2022-12-12 21:42:53,022 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 09:42:52" (1/1) ... [2022-12-12 21:42:53,026 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-12 21:42:53,027 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-12 21:42:53,027 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-12 21:42:53,027 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-12 21:42:53,028 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 09:42:52" (1/1) ... [2022-12-12 21:42:53,032 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-12 21:42:53,047 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-12 21:42:53,064 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-12 21:42:53,105 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-12 21:42:53,126 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-12 21:42:53,126 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-12 21:42:53,126 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-12-12 21:42:53,126 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-12 21:42:53,127 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-12 21:42:53,127 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-12 21:42:53,127 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2022-12-12 21:42:53,127 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2022-12-12 21:42:53,127 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2022-12-12 21:42:53,127 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2022-12-12 21:42:53,127 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2022-12-12 21:42:53,127 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2022-12-12 21:42:53,128 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2022-12-12 21:42:53,128 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2022-12-12 21:42:53,128 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-12 21:42:53,128 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-12-12 21:42:53,128 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-12 21:42:53,128 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-12 21:42:53,129 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2022-12-12 21:42:53,286 INFO L236 CfgBuilder]: Building ICFG [2022-12-12 21:42:53,288 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-12 21:42:53,794 INFO L277 CfgBuilder]: Performing block encoding [2022-12-12 21:42:54,029 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-12 21:42:54,030 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-12 21:42:54,033 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.12 09:42:54 BoogieIcfgContainer [2022-12-12 21:42:54,033 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-12 21:42:54,035 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-12 21:42:54,035 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-12 21:42:54,037 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-12 21:42:54,037 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.12 09:42:52" (1/3) ... [2022-12-12 21:42:54,038 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@58e5ea00 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.12 09:42:54, skipping insertion in model container [2022-12-12 21:42:54,038 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 09:42:52" (2/3) ... [2022-12-12 21:42:54,038 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@58e5ea00 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.12 09:42:54, skipping insertion in model container [2022-12-12 21:42:54,038 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.12 09:42:54" (3/3) ... [2022-12-12 21:42:54,045 INFO L112 eAbstractionObserver]: Analyzing ICFG safe019_power.opt.i [2022-12-12 21:42:54,060 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-12 21:42:54,060 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-12-12 21:42:54,060 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-12-12 21:42:54,128 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-12-12 21:42:54,157 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 156 places, 145 transitions, 310 flow [2022-12-12 21:42:54,208 INFO L130 PetriNetUnfolder]: 2/141 cut-off events. [2022-12-12 21:42:54,208 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-12 21:42:54,213 INFO L83 FinitePrefix]: Finished finitePrefix Result has 154 conditions, 141 events. 2/141 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 62 event pairs, 0 based on Foata normal form. 0/137 useless extension candidates. Maximal degree in co-relation 84. Up to 2 conditions per place. [2022-12-12 21:42:54,214 INFO L82 GeneralOperation]: Start removeDead. Operand has 156 places, 145 transitions, 310 flow [2022-12-12 21:42:54,217 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 152 places, 141 transitions, 294 flow [2022-12-12 21:42:54,218 INFO L203 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-12 21:42:54,231 INFO L174 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 152 places, 141 transitions, 294 flow [2022-12-12 21:42:54,239 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 152 places, 141 transitions, 294 flow [2022-12-12 21:42:54,282 INFO L130 PetriNetUnfolder]: 2/141 cut-off events. [2022-12-12 21:42:54,282 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-12 21:42:54,283 INFO L83 FinitePrefix]: Finished finitePrefix Result has 154 conditions, 141 events. 2/141 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 62 event pairs, 0 based on Foata normal form. 0/137 useless extension candidates. Maximal degree in co-relation 84. Up to 2 conditions per place. [2022-12-12 21:42:54,286 INFO L222 LiptonReduction]: Starting Lipton reduction on Petri net that has 152 places, 141 transitions, 294 flow [2022-12-12 21:42:54,287 INFO L226 LiptonReduction]: Number of co-enabled transitions 2664 [2022-12-12 21:43:05,704 INFO L241 LiptonReduction]: Total number of compositions: 119 [2022-12-12 21:43:05,716 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-12 21:43:05,720 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@14a19e7e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, Conditionality=CONDITIONAL_DISJUNCTIVE, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-12 21:43:05,721 INFO L358 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2022-12-12 21:43:05,723 INFO L130 PetriNetUnfolder]: 0/9 cut-off events. [2022-12-12 21:43:05,723 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-12 21:43:05,724 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 21:43:05,724 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2022-12-12 21:43:05,724 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting P1Err0ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-12-12 21:43:05,728 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 21:43:05,728 INFO L85 PathProgramCache]: Analyzing trace with hash 939025343, now seen corresponding path program 1 times [2022-12-12 21:43:05,735 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 21:43:05,735 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1851617322] [2022-12-12 21:43:05,735 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 21:43:05,736 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 21:43:05,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 21:43:06,104 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 21:43:06,105 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 21:43:06,105 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1851617322] [2022-12-12 21:43:06,105 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1851617322] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 21:43:06,106 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 21:43:06,106 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-12-12 21:43:06,107 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1371659421] [2022-12-12 21:43:06,107 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 21:43:06,113 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-12 21:43:06,113 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 21:43:06,130 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-12 21:43:06,131 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-12 21:43:06,132 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 73 [2022-12-12 21:43:06,133 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 86 places, 73 transitions, 158 flow. Second operand has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 21:43:06,133 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 21:43:06,133 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 73 [2022-12-12 21:43:06,133 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 21:43:15,275 INFO L130 PetriNetUnfolder]: 57424/79774 cut-off events. [2022-12-12 21:43:15,275 INFO L131 PetriNetUnfolder]: For 143/143 co-relation queries the response was YES. [2022-12-12 21:43:15,475 INFO L83 FinitePrefix]: Finished finitePrefix Result has 155927 conditions, 79774 events. 57424/79774 cut-off events. For 143/143 co-relation queries the response was YES. Maximal size of possible extension queue 3746. Compared 568271 event pairs, 8548 based on Foata normal form. 0/49657 useless extension candidates. Maximal degree in co-relation 155915. Up to 63597 conditions per place. [2022-12-12 21:43:15,576 INFO L137 encePairwiseOnDemand]: 69/73 looper letters, 44 selfloop transitions, 2 changer transitions 64/122 dead transitions. [2022-12-12 21:43:15,576 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 86 places, 122 transitions, 482 flow [2022-12-12 21:43:15,577 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-12 21:43:15,579 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-12 21:43:15,583 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 149 transitions. [2022-12-12 21:43:15,584 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.680365296803653 [2022-12-12 21:43:15,586 INFO L295 CegarLoopForPetriNet]: 86 programPoint places, 0 predicate places. [2022-12-12 21:43:15,586 INFO L82 GeneralOperation]: Start removeDead. Operand has 86 places, 122 transitions, 482 flow [2022-12-12 21:43:15,670 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 54 places, 58 transitions, 226 flow [2022-12-12 21:43:15,672 INFO L495 AbstractCegarLoop]: Abstraction has has 54 places, 58 transitions, 226 flow [2022-12-12 21:43:15,672 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 21:43:15,672 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 21:43:15,672 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-12 21:43:15,672 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-12 21:43:15,672 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-12-12 21:43:15,673 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 21:43:15,673 INFO L85 PathProgramCache]: Analyzing trace with hash -1833549510, now seen corresponding path program 1 times [2022-12-12 21:43:15,673 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 21:43:15,674 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1161630181] [2022-12-12 21:43:15,674 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 21:43:15,674 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 21:43:15,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 21:43:15,924 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 21:43:15,924 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 21:43:15,924 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1161630181] [2022-12-12 21:43:15,924 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1161630181] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 21:43:15,924 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 21:43:15,924 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-12-12 21:43:15,924 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1560547695] [2022-12-12 21:43:15,925 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 21:43:15,925 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-12 21:43:15,925 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 21:43:15,926 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-12 21:43:15,926 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-12 21:43:15,926 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 73 [2022-12-12 21:43:15,926 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 54 places, 58 transitions, 226 flow. Second operand has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 21:43:15,926 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 21:43:15,926 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 73 [2022-12-12 21:43:15,927 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 21:43:17,918 INFO L130 PetriNetUnfolder]: 9589/13574 cut-off events. [2022-12-12 21:43:17,918 INFO L131 PetriNetUnfolder]: For 538/538 co-relation queries the response was YES. [2022-12-12 21:43:17,931 INFO L83 FinitePrefix]: Finished finitePrefix Result has 39218 conditions, 13574 events. 9589/13574 cut-off events. For 538/538 co-relation queries the response was YES. Maximal size of possible extension queue 543. Compared 72318 event pairs, 1897 based on Foata normal form. 50/11152 useless extension candidates. Maximal degree in co-relation 39203. Up to 12026 conditions per place. [2022-12-12 21:43:18,010 INFO L137 encePairwiseOnDemand]: 69/73 looper letters, 68 selfloop transitions, 4 changer transitions 0/83 dead transitions. [2022-12-12 21:43:18,010 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 56 places, 83 transitions, 474 flow [2022-12-12 21:43:18,011 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-12 21:43:18,011 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-12 21:43:18,011 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 77 transitions. [2022-12-12 21:43:18,012 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.3515981735159817 [2022-12-12 21:43:18,012 INFO L295 CegarLoopForPetriNet]: 86 programPoint places, -30 predicate places. [2022-12-12 21:43:18,012 INFO L82 GeneralOperation]: Start removeDead. Operand has 56 places, 83 transitions, 474 flow [2022-12-12 21:43:18,078 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 56 places, 83 transitions, 474 flow [2022-12-12 21:43:18,078 INFO L495 AbstractCegarLoop]: Abstraction has has 56 places, 83 transitions, 474 flow [2022-12-12 21:43:18,079 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 21:43:18,079 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 21:43:18,079 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-12 21:43:18,079 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-12 21:43:18,079 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-12-12 21:43:18,080 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 21:43:18,080 INFO L85 PathProgramCache]: Analyzing trace with hash -1005458958, now seen corresponding path program 1 times [2022-12-12 21:43:18,080 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 21:43:18,080 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1818264118] [2022-12-12 21:43:18,080 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 21:43:18,080 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 21:43:18,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 21:43:18,221 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 21:43:18,222 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 21:43:18,225 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1818264118] [2022-12-12 21:43:18,225 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1818264118] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 21:43:18,225 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 21:43:18,225 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-12-12 21:43:18,225 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1409172105] [2022-12-12 21:43:18,225 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 21:43:18,226 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-12 21:43:18,226 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 21:43:18,226 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-12 21:43:18,226 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-12 21:43:18,227 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 73 [2022-12-12 21:43:18,228 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 56 places, 83 transitions, 474 flow. Second operand has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 21:43:18,228 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 21:43:18,228 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 73 [2022-12-12 21:43:18,228 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 21:43:19,625 INFO L130 PetriNetUnfolder]: 9112/12941 cut-off events. [2022-12-12 21:43:19,625 INFO L131 PetriNetUnfolder]: For 1401/1401 co-relation queries the response was YES. [2022-12-12 21:43:19,658 INFO L83 FinitePrefix]: Finished finitePrefix Result has 49150 conditions, 12941 events. 9112/12941 cut-off events. For 1401/1401 co-relation queries the response was YES. Maximal size of possible extension queue 518. Compared 68968 event pairs, 1644 based on Foata normal form. 140/10692 useless extension candidates. Maximal degree in co-relation 49132. Up to 11409 conditions per place. [2022-12-12 21:43:19,730 INFO L137 encePairwiseOnDemand]: 70/73 looper letters, 115 selfloop transitions, 5 changer transitions 0/133 dead transitions. [2022-12-12 21:43:19,730 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 58 places, 133 transitions, 1035 flow [2022-12-12 21:43:19,730 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-12 21:43:19,731 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-12 21:43:19,731 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 84 transitions. [2022-12-12 21:43:19,731 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.3835616438356164 [2022-12-12 21:43:19,732 INFO L295 CegarLoopForPetriNet]: 86 programPoint places, -28 predicate places. [2022-12-12 21:43:19,732 INFO L82 GeneralOperation]: Start removeDead. Operand has 58 places, 133 transitions, 1035 flow [2022-12-12 21:43:19,791 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 58 places, 133 transitions, 1035 flow [2022-12-12 21:43:19,791 INFO L495 AbstractCegarLoop]: Abstraction has has 58 places, 133 transitions, 1035 flow [2022-12-12 21:43:19,792 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 21:43:19,792 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 21:43:19,795 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-12 21:43:19,795 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-12 21:43:19,795 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-12-12 21:43:19,801 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 21:43:19,801 INFO L85 PathProgramCache]: Analyzing trace with hash -1104490218, now seen corresponding path program 1 times [2022-12-12 21:43:19,802 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 21:43:19,802 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1370023372] [2022-12-12 21:43:19,802 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 21:43:19,802 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 21:43:19,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 21:43:19,937 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 21:43:19,937 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 21:43:19,938 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1370023372] [2022-12-12 21:43:19,938 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1370023372] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 21:43:19,938 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 21:43:19,938 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-12 21:43:19,939 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [368085492] [2022-12-12 21:43:19,939 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 21:43:19,939 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-12 21:43:19,940 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 21:43:19,940 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-12 21:43:19,941 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-12 21:43:19,941 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 73 [2022-12-12 21:43:19,941 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 58 places, 133 transitions, 1035 flow. Second operand has 4 states, 4 states have (on average 14.25) internal successors, (57), 4 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 21:43:19,942 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 21:43:19,942 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 73 [2022-12-12 21:43:19,942 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 21:43:22,015 INFO L130 PetriNetUnfolder]: 14224/20353 cut-off events. [2022-12-12 21:43:22,015 INFO L131 PetriNetUnfolder]: For 1466/1466 co-relation queries the response was YES. [2022-12-12 21:43:22,078 INFO L83 FinitePrefix]: Finished finitePrefix Result has 96334 conditions, 20353 events. 14224/20353 cut-off events. For 1466/1466 co-relation queries the response was YES. Maximal size of possible extension queue 847. Compared 120848 event pairs, 1324 based on Foata normal form. 560/16996 useless extension candidates. Maximal degree in co-relation 96313. Up to 18361 conditions per place. [2022-12-12 21:43:22,148 INFO L137 encePairwiseOnDemand]: 68/73 looper letters, 87 selfloop transitions, 6 changer transitions 65/168 dead transitions. [2022-12-12 21:43:22,149 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 61 places, 168 transitions, 1631 flow [2022-12-12 21:43:22,149 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-12 21:43:22,149 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-12-12 21:43:22,150 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 108 transitions. [2022-12-12 21:43:22,150 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.3698630136986301 [2022-12-12 21:43:22,150 INFO L295 CegarLoopForPetriNet]: 86 programPoint places, -25 predicate places. [2022-12-12 21:43:22,151 INFO L82 GeneralOperation]: Start removeDead. Operand has 61 places, 168 transitions, 1631 flow [2022-12-12 21:43:22,220 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 60 places, 103 transitions, 968 flow [2022-12-12 21:43:22,220 INFO L495 AbstractCegarLoop]: Abstraction has has 60 places, 103 transitions, 968 flow [2022-12-12 21:43:22,220 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.25) internal successors, (57), 4 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 21:43:22,220 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 21:43:22,220 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-12 21:43:22,220 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-12-12 21:43:22,221 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-12-12 21:43:22,221 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 21:43:22,221 INFO L85 PathProgramCache]: Analyzing trace with hash -1104456738, now seen corresponding path program 2 times [2022-12-12 21:43:22,221 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 21:43:22,221 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [340805009] [2022-12-12 21:43:22,221 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 21:43:22,221 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 21:43:22,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 21:43:22,378 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 21:43:22,378 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 21:43:22,378 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [340805009] [2022-12-12 21:43:22,378 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [340805009] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 21:43:22,378 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 21:43:22,379 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-12-12 21:43:22,379 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1274969748] [2022-12-12 21:43:22,379 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 21:43:22,379 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-12 21:43:22,379 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 21:43:22,379 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-12 21:43:22,379 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-12 21:43:22,380 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 73 [2022-12-12 21:43:22,380 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 60 places, 103 transitions, 968 flow. Second operand has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 21:43:22,380 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 21:43:22,380 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 73 [2022-12-12 21:43:22,380 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 21:43:23,643 INFO L130 PetriNetUnfolder]: 8128/11559 cut-off events. [2022-12-12 21:43:23,643 INFO L131 PetriNetUnfolder]: For 653/653 co-relation queries the response was YES. [2022-12-12 21:43:23,656 INFO L83 FinitePrefix]: Finished finitePrefix Result has 65443 conditions, 11559 events. 8128/11559 cut-off events. For 653/653 co-relation queries the response was YES. Maximal size of possible extension queue 498. Compared 63059 event pairs, 540 based on Foata normal form. 80/9416 useless extension candidates. Maximal degree in co-relation 65419. Up to 10845 conditions per place. [2022-12-12 21:43:23,707 INFO L137 encePairwiseOnDemand]: 70/73 looper letters, 133 selfloop transitions, 7 changer transitions 0/153 dead transitions. [2022-12-12 21:43:23,707 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 62 places, 153 transitions, 1754 flow [2022-12-12 21:43:23,708 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-12 21:43:23,708 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-12 21:43:23,709 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 80 transitions. [2022-12-12 21:43:23,709 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.365296803652968 [2022-12-12 21:43:23,711 INFO L295 CegarLoopForPetriNet]: 86 programPoint places, -24 predicate places. [2022-12-12 21:43:23,713 INFO L82 GeneralOperation]: Start removeDead. Operand has 62 places, 153 transitions, 1754 flow [2022-12-12 21:43:23,766 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 62 places, 153 transitions, 1754 flow [2022-12-12 21:43:23,766 INFO L495 AbstractCegarLoop]: Abstraction has has 62 places, 153 transitions, 1754 flow [2022-12-12 21:43:23,766 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 21:43:23,766 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 21:43:23,766 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-12 21:43:23,766 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-12-12 21:43:23,766 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-12-12 21:43:23,767 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 21:43:23,767 INFO L85 PathProgramCache]: Analyzing trace with hash 119668910, now seen corresponding path program 1 times [2022-12-12 21:43:23,767 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 21:43:23,767 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1478855035] [2022-12-12 21:43:23,767 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 21:43:23,768 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 21:43:23,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 21:43:24,028 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 21:43:24,029 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 21:43:24,029 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1478855035] [2022-12-12 21:43:24,029 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1478855035] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 21:43:24,029 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 21:43:24,029 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-12 21:43:24,029 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1677205353] [2022-12-12 21:43:24,029 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 21:43:24,030 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-12 21:43:24,030 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 21:43:24,030 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-12 21:43:24,030 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-12 21:43:24,030 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 73 [2022-12-12 21:43:24,030 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 62 places, 153 transitions, 1754 flow. Second operand has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 21:43:24,031 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 21:43:24,031 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 73 [2022-12-12 21:43:24,031 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 21:43:26,043 INFO L130 PetriNetUnfolder]: 11840/17071 cut-off events. [2022-12-12 21:43:26,043 INFO L131 PetriNetUnfolder]: For 2141/2141 co-relation queries the response was YES. [2022-12-12 21:43:26,087 INFO L83 FinitePrefix]: Finished finitePrefix Result has 112839 conditions, 17071 events. 11840/17071 cut-off events. For 2141/2141 co-relation queries the response was YES. Maximal size of possible extension queue 784. Compared 101778 event pairs, 480 based on Foata normal form. 400/13920 useless extension candidates. Maximal degree in co-relation 112812. Up to 15997 conditions per place. [2022-12-12 21:43:26,171 INFO L137 encePairwiseOnDemand]: 70/73 looper letters, 178 selfloop transitions, 6 changer transitions 7/201 dead transitions. [2022-12-12 21:43:26,171 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 64 places, 201 transitions, 2712 flow [2022-12-12 21:43:26,172 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-12 21:43:26,172 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-12 21:43:26,172 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 81 transitions. [2022-12-12 21:43:26,173 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.3698630136986301 [2022-12-12 21:43:26,174 INFO L295 CegarLoopForPetriNet]: 86 programPoint places, -22 predicate places. [2022-12-12 21:43:26,174 INFO L82 GeneralOperation]: Start removeDead. Operand has 64 places, 201 transitions, 2712 flow [2022-12-12 21:43:26,260 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 64 places, 194 transitions, 2620 flow [2022-12-12 21:43:26,261 INFO L495 AbstractCegarLoop]: Abstraction has has 64 places, 194 transitions, 2620 flow [2022-12-12 21:43:26,261 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 21:43:26,261 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 21:43:26,261 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-12 21:43:26,261 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-12-12 21:43:26,261 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-12-12 21:43:26,262 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 21:43:26,262 INFO L85 PathProgramCache]: Analyzing trace with hash 119766932, now seen corresponding path program 1 times [2022-12-12 21:43:26,262 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 21:43:26,262 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [753772840] [2022-12-12 21:43:26,262 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 21:43:26,262 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 21:43:26,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 21:43:27,338 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 21:43:27,338 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 21:43:27,338 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [753772840] [2022-12-12 21:43:27,338 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [753772840] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 21:43:27,339 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 21:43:27,339 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-12 21:43:27,339 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1155240953] [2022-12-12 21:43:27,339 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 21:43:27,339 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-12 21:43:27,339 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 21:43:27,339 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-12 21:43:27,339 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-12-12 21:43:27,340 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 73 [2022-12-12 21:43:27,340 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 64 places, 194 transitions, 2620 flow. Second operand has 7 states, 7 states have (on average 14.0) internal successors, (98), 7 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 21:43:27,340 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 21:43:27,340 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 73 [2022-12-12 21:43:27,340 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 21:43:30,116 INFO L130 PetriNetUnfolder]: 14535/20712 cut-off events. [2022-12-12 21:43:30,116 INFO L131 PetriNetUnfolder]: For 4586/4586 co-relation queries the response was YES. [2022-12-12 21:43:30,170 INFO L83 FinitePrefix]: Finished finitePrefix Result has 157499 conditions, 20712 events. 14535/20712 cut-off events. For 4586/4586 co-relation queries the response was YES. Maximal size of possible extension queue 944. Compared 123916 event pairs, 1128 based on Foata normal form. 160/16730 useless extension candidates. Maximal degree in co-relation 157469. Up to 19609 conditions per place. [2022-12-12 21:43:30,262 INFO L137 encePairwiseOnDemand]: 63/73 looper letters, 238 selfloop transitions, 41 changer transitions 6/297 dead transitions. [2022-12-12 21:43:30,263 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 68 places, 297 transitions, 4650 flow [2022-12-12 21:43:30,263 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-12 21:43:30,263 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-12-12 21:43:30,264 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 140 transitions. [2022-12-12 21:43:30,264 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.3835616438356164 [2022-12-12 21:43:30,264 INFO L295 CegarLoopForPetriNet]: 86 programPoint places, -18 predicate places. [2022-12-12 21:43:30,264 INFO L82 GeneralOperation]: Start removeDead. Operand has 68 places, 297 transitions, 4650 flow [2022-12-12 21:43:30,360 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 68 places, 291 transitions, 4554 flow [2022-12-12 21:43:30,360 INFO L495 AbstractCegarLoop]: Abstraction has has 68 places, 291 transitions, 4554 flow [2022-12-12 21:43:30,360 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 14.0) internal successors, (98), 7 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 21:43:30,360 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 21:43:30,361 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-12 21:43:30,361 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-12-12 21:43:30,362 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-12-12 21:43:30,362 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 21:43:30,362 INFO L85 PathProgramCache]: Analyzing trace with hash -1652444164, now seen corresponding path program 2 times [2022-12-12 21:43:30,362 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 21:43:30,362 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1334009676] [2022-12-12 21:43:30,362 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 21:43:30,363 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 21:43:30,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 21:43:31,121 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 21:43:31,121 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 21:43:31,121 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1334009676] [2022-12-12 21:43:31,122 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1334009676] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 21:43:31,122 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 21:43:31,122 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-12 21:43:31,122 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [69108865] [2022-12-12 21:43:31,122 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 21:43:31,123 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-12 21:43:31,123 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 21:43:31,123 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-12 21:43:31,123 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2022-12-12 21:43:31,124 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 73 [2022-12-12 21:43:31,124 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 68 places, 291 transitions, 4554 flow. Second operand has 7 states, 7 states have (on average 14.0) internal successors, (98), 7 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 21:43:31,124 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 21:43:31,124 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 73 [2022-12-12 21:43:31,124 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 21:43:34,528 INFO L130 PetriNetUnfolder]: 15546/22143 cut-off events. [2022-12-12 21:43:34,528 INFO L131 PetriNetUnfolder]: For 7070/7070 co-relation queries the response was YES. [2022-12-12 21:43:34,583 INFO L83 FinitePrefix]: Finished finitePrefix Result has 189638 conditions, 22143 events. 15546/22143 cut-off events. For 7070/7070 co-relation queries the response was YES. Maximal size of possible extension queue 1024. Compared 133986 event pairs, 1032 based on Foata normal form. 160/17986 useless extension candidates. Maximal degree in co-relation 189605. Up to 21045 conditions per place. [2022-12-12 21:43:34,731 INFO L137 encePairwiseOnDemand]: 63/73 looper letters, 266 selfloop transitions, 56 changer transitions 6/340 dead transitions. [2022-12-12 21:43:34,732 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 72 places, 340 transitions, 6003 flow [2022-12-12 21:43:34,732 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-12 21:43:34,732 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-12-12 21:43:34,733 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 136 transitions. [2022-12-12 21:43:34,733 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.3726027397260274 [2022-12-12 21:43:34,733 INFO L295 CegarLoopForPetriNet]: 86 programPoint places, -14 predicate places. [2022-12-12 21:43:34,733 INFO L82 GeneralOperation]: Start removeDead. Operand has 72 places, 340 transitions, 6003 flow [2022-12-12 21:43:34,834 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 72 places, 334 transitions, 5895 flow [2022-12-12 21:43:34,834 INFO L495 AbstractCegarLoop]: Abstraction has has 72 places, 334 transitions, 5895 flow [2022-12-12 21:43:34,835 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 14.0) internal successors, (98), 7 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 21:43:34,835 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 21:43:34,835 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-12 21:43:34,835 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-12-12 21:43:34,835 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-12-12 21:43:34,835 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 21:43:34,835 INFO L85 PathProgramCache]: Analyzing trace with hash -566458063, now seen corresponding path program 1 times [2022-12-12 21:43:34,835 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 21:43:34,836 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1808407398] [2022-12-12 21:43:34,836 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 21:43:34,836 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 21:43:34,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 21:43:34,949 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 21:43:34,949 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 21:43:34,949 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1808407398] [2022-12-12 21:43:34,950 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1808407398] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 21:43:34,950 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 21:43:34,950 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-12 21:43:34,950 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [57011884] [2022-12-12 21:43:34,950 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 21:43:34,950 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-12 21:43:34,950 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 21:43:34,950 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-12 21:43:34,951 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-12 21:43:34,951 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 73 [2022-12-12 21:43:34,951 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 72 places, 334 transitions, 5895 flow. Second operand has 3 states, 3 states have (on average 13.0) internal successors, (39), 3 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 21:43:34,951 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 21:43:34,951 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 73 [2022-12-12 21:43:34,951 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 21:43:39,979 INFO L130 PetriNetUnfolder]: 29839/40870 cut-off events. [2022-12-12 21:43:39,979 INFO L131 PetriNetUnfolder]: For 121762/121856 co-relation queries the response was YES. [2022-12-12 21:43:40,122 INFO L83 FinitePrefix]: Finished finitePrefix Result has 350582 conditions, 40870 events. 29839/40870 cut-off events. For 121762/121856 co-relation queries the response was YES. Maximal size of possible extension queue 1791. Compared 242747 event pairs, 6147 based on Foata normal form. 231/34512 useless extension candidates. Maximal degree in co-relation 350546. Up to 39412 conditions per place. [2022-12-12 21:43:40,339 INFO L137 encePairwiseOnDemand]: 59/73 looper letters, 418 selfloop transitions, 115 changer transitions 0/541 dead transitions. [2022-12-12 21:43:40,339 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 74 places, 541 transitions, 10662 flow [2022-12-12 21:43:40,340 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-12 21:43:40,340 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-12 21:43:40,340 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 80 transitions. [2022-12-12 21:43:40,340 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.365296803652968 [2022-12-12 21:43:40,341 INFO L295 CegarLoopForPetriNet]: 86 programPoint places, -12 predicate places. [2022-12-12 21:43:40,341 INFO L82 GeneralOperation]: Start removeDead. Operand has 74 places, 541 transitions, 10662 flow [2022-12-12 21:43:40,545 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 74 places, 541 transitions, 10662 flow [2022-12-12 21:43:40,545 INFO L495 AbstractCegarLoop]: Abstraction has has 74 places, 541 transitions, 10662 flow [2022-12-12 21:43:40,546 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.0) internal successors, (39), 3 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 21:43:40,546 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 21:43:40,546 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-12 21:43:40,546 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-12-12 21:43:40,546 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-12-12 21:43:40,546 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 21:43:40,546 INFO L85 PathProgramCache]: Analyzing trace with hash 1853186090, now seen corresponding path program 1 times [2022-12-12 21:43:40,547 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 21:43:40,547 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1558559328] [2022-12-12 21:43:40,547 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 21:43:40,547 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 21:43:40,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 21:43:40,694 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 21:43:40,695 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 21:43:40,695 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1558559328] [2022-12-12 21:43:40,695 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1558559328] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 21:43:40,695 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 21:43:40,695 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-12 21:43:40,695 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [125754126] [2022-12-12 21:43:40,695 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 21:43:40,695 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-12 21:43:40,696 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 21:43:40,696 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-12 21:43:40,696 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-12-12 21:43:40,696 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 73 [2022-12-12 21:43:40,696 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 74 places, 541 transitions, 10662 flow. Second operand has 4 states, 4 states have (on average 12.25) internal successors, (49), 4 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 21:43:40,696 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 21:43:40,696 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 73 [2022-12-12 21:43:40,697 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 21:43:45,602 INFO L130 PetriNetUnfolder]: 20397/29418 cut-off events. [2022-12-12 21:43:45,602 INFO L131 PetriNetUnfolder]: For 97830/97961 co-relation queries the response was YES. [2022-12-12 21:43:45,683 INFO L83 FinitePrefix]: Finished finitePrefix Result has 282323 conditions, 29418 events. 20397/29418 cut-off events. For 97830/97961 co-relation queries the response was YES. Maximal size of possible extension queue 1515. Compared 186923 event pairs, 2497 based on Foata normal form. 925/25687 useless extension candidates. Maximal degree in co-relation 282284. Up to 28147 conditions per place. [2022-12-12 21:43:45,807 INFO L137 encePairwiseOnDemand]: 59/73 looper letters, 424 selfloop transitions, 213 changer transitions 27/672 dead transitions. [2022-12-12 21:43:45,807 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 77 places, 672 transitions, 14564 flow [2022-12-12 21:43:45,807 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-12 21:43:45,807 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-12-12 21:43:45,808 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 110 transitions. [2022-12-12 21:43:45,808 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.3767123287671233 [2022-12-12 21:43:45,809 INFO L295 CegarLoopForPetriNet]: 86 programPoint places, -9 predicate places. [2022-12-12 21:43:45,809 INFO L82 GeneralOperation]: Start removeDead. Operand has 77 places, 672 transitions, 14564 flow [2022-12-12 21:43:45,938 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 77 places, 645 transitions, 13970 flow [2022-12-12 21:43:45,938 INFO L495 AbstractCegarLoop]: Abstraction has has 77 places, 645 transitions, 13970 flow [2022-12-12 21:43:45,938 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.25) internal successors, (49), 4 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 21:43:45,938 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 21:43:45,938 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-12 21:43:45,938 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-12-12 21:43:45,939 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-12-12 21:43:45,939 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 21:43:45,939 INFO L85 PathProgramCache]: Analyzing trace with hash -24322507, now seen corresponding path program 1 times [2022-12-12 21:43:45,939 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 21:43:45,939 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [124776225] [2022-12-12 21:43:45,939 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 21:43:45,939 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 21:43:45,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 21:43:46,096 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 21:43:46,096 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 21:43:46,097 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [124776225] [2022-12-12 21:43:46,097 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [124776225] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 21:43:46,097 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 21:43:46,097 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-12 21:43:46,097 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1263888136] [2022-12-12 21:43:46,097 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 21:43:46,097 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-12 21:43:46,097 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 21:43:46,098 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-12 21:43:46,098 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-12-12 21:43:46,098 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 73 [2022-12-12 21:43:46,098 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 77 places, 645 transitions, 13970 flow. Second operand has 5 states, 5 states have (on average 11.8) internal successors, (59), 5 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 21:43:46,098 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 21:43:46,098 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 73 [2022-12-12 21:43:46,098 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 21:43:49,214 INFO L130 PetriNetUnfolder]: 10828/16764 cut-off events. [2022-12-12 21:43:49,214 INFO L131 PetriNetUnfolder]: For 86058/86178 co-relation queries the response was YES. [2022-12-12 21:43:49,246 INFO L83 FinitePrefix]: Finished finitePrefix Result has 176614 conditions, 16764 events. 10828/16764 cut-off events. For 86058/86178 co-relation queries the response was YES. Maximal size of possible extension queue 805. Compared 110966 event pairs, 393 based on Foata normal form. 1291/15380 useless extension candidates. Maximal degree in co-relation 176572. Up to 15724 conditions per place. [2022-12-12 21:43:49,329 INFO L137 encePairwiseOnDemand]: 59/73 looper letters, 373 selfloop transitions, 267 changer transitions 24/672 dead transitions. [2022-12-12 21:43:49,329 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 81 places, 672 transitions, 15831 flow [2022-12-12 21:43:49,330 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-12 21:43:49,330 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-12-12 21:43:49,330 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 140 transitions. [2022-12-12 21:43:49,331 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.3835616438356164 [2022-12-12 21:43:49,331 INFO L295 CegarLoopForPetriNet]: 86 programPoint places, -5 predicate places. [2022-12-12 21:43:49,331 INFO L82 GeneralOperation]: Start removeDead. Operand has 81 places, 672 transitions, 15831 flow [2022-12-12 21:43:49,416 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 81 places, 648 transitions, 15255 flow [2022-12-12 21:43:49,416 INFO L495 AbstractCegarLoop]: Abstraction has has 81 places, 648 transitions, 15255 flow [2022-12-12 21:43:49,416 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.8) internal successors, (59), 5 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 21:43:49,416 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 21:43:49,417 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-12 21:43:49,417 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-12-12 21:43:49,417 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-12-12 21:43:49,417 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 21:43:49,417 INFO L85 PathProgramCache]: Analyzing trace with hash 1023310888, now seen corresponding path program 1 times [2022-12-12 21:43:49,417 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 21:43:49,417 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1409150120] [2022-12-12 21:43:49,417 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 21:43:49,418 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 21:43:49,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 21:43:51,490 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 21:43:51,490 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 21:43:51,490 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1409150120] [2022-12-12 21:43:51,490 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1409150120] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 21:43:51,491 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 21:43:51,491 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-12 21:43:51,491 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2098573686] [2022-12-12 21:43:51,491 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 21:43:51,491 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-12-12 21:43:51,491 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 21:43:51,491 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-12-12 21:43:51,492 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2022-12-12 21:43:51,492 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 73 [2022-12-12 21:43:51,492 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 81 places, 648 transitions, 15255 flow. Second operand has 9 states, 9 states have (on average 14.11111111111111) internal successors, (127), 9 states have internal predecessors, (127), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 21:43:51,492 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 21:43:51,492 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 73 [2022-12-12 21:43:51,492 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 21:43:56,328 INFO L130 PetriNetUnfolder]: 16854/26535 cut-off events. [2022-12-12 21:43:56,328 INFO L131 PetriNetUnfolder]: For 150755/151044 co-relation queries the response was YES. [2022-12-12 21:43:56,398 INFO L83 FinitePrefix]: Finished finitePrefix Result has 295872 conditions, 26535 events. 16854/26535 cut-off events. For 150755/151044 co-relation queries the response was YES. Maximal size of possible extension queue 1233. Compared 194861 event pairs, 569 based on Foata normal form. 88/22402 useless extension candidates. Maximal degree in co-relation 295827. Up to 24842 conditions per place. [2022-12-12 21:43:56,539 INFO L137 encePairwiseOnDemand]: 63/73 looper letters, 903 selfloop transitions, 177 changer transitions 35/1139 dead transitions. [2022-12-12 21:43:56,539 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 88 places, 1139 transitions, 29359 flow [2022-12-12 21:43:56,539 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-12-12 21:43:56,540 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2022-12-12 21:43:56,540 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 211 transitions. [2022-12-12 21:43:56,540 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.3613013698630137 [2022-12-12 21:43:56,541 INFO L295 CegarLoopForPetriNet]: 86 programPoint places, 2 predicate places. [2022-12-12 21:43:56,541 INFO L82 GeneralOperation]: Start removeDead. Operand has 88 places, 1139 transitions, 29359 flow [2022-12-12 21:43:56,688 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 88 places, 1104 transitions, 28449 flow [2022-12-12 21:43:56,688 INFO L495 AbstractCegarLoop]: Abstraction has has 88 places, 1104 transitions, 28449 flow [2022-12-12 21:43:56,688 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 14.11111111111111) internal successors, (127), 9 states have internal predecessors, (127), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 21:43:56,688 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 21:43:56,688 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-12 21:43:56,689 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-12-12 21:43:56,689 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-12-12 21:43:56,689 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 21:43:56,689 INFO L85 PathProgramCache]: Analyzing trace with hash 1070719010, now seen corresponding path program 1 times [2022-12-12 21:43:56,689 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 21:43:56,689 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [671097714] [2022-12-12 21:43:56,689 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 21:43:56,690 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 21:43:56,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 21:43:57,221 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 21:43:57,221 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 21:43:57,221 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [671097714] [2022-12-12 21:43:57,221 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [671097714] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 21:43:57,221 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 21:43:57,221 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-12 21:43:57,221 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [894512486] [2022-12-12 21:43:57,221 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 21:43:57,222 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-12 21:43:57,222 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 21:43:57,222 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-12 21:43:57,223 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-12-12 21:43:57,223 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 73 [2022-12-12 21:43:57,223 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 88 places, 1104 transitions, 28449 flow. Second operand has 7 states, 7 states have (on average 14.571428571428571) internal successors, (102), 7 states have internal predecessors, (102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 21:43:57,223 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 21:43:57,223 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 73 [2022-12-12 21:43:57,224 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 21:44:05,856 INFO L130 PetriNetUnfolder]: 22613/36346 cut-off events. [2022-12-12 21:44:05,856 INFO L131 PetriNetUnfolder]: For 236167/236466 co-relation queries the response was YES. [2022-12-12 21:44:05,974 INFO L83 FinitePrefix]: Finished finitePrefix Result has 426328 conditions, 36346 events. 22613/36346 cut-off events. For 236167/236466 co-relation queries the response was YES. Maximal size of possible extension queue 2041. Compared 290526 event pairs, 998 based on Foata normal form. 302/30483 useless extension candidates. Maximal degree in co-relation 426280. Up to 34388 conditions per place. [2022-12-12 21:44:06,134 INFO L137 encePairwiseOnDemand]: 63/73 looper letters, 911 selfloop transitions, 144 changer transitions 256/1335 dead transitions. [2022-12-12 21:44:06,134 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 94 places, 1335 transitions, 37101 flow [2022-12-12 21:44:06,135 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-12 21:44:06,135 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2022-12-12 21:44:06,135 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 184 transitions. [2022-12-12 21:44:06,135 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.36007827788649704 [2022-12-12 21:44:06,136 INFO L295 CegarLoopForPetriNet]: 86 programPoint places, 8 predicate places. [2022-12-12 21:44:06,136 INFO L82 GeneralOperation]: Start removeDead. Operand has 94 places, 1335 transitions, 37101 flow [2022-12-12 21:44:06,374 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 92 places, 1079 transitions, 29909 flow [2022-12-12 21:44:06,374 INFO L495 AbstractCegarLoop]: Abstraction has has 92 places, 1079 transitions, 29909 flow [2022-12-12 21:44:06,374 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 14.571428571428571) internal successors, (102), 7 states have internal predecessors, (102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 21:44:06,374 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 21:44:06,374 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-12 21:44:06,374 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-12-12 21:44:06,375 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-12-12 21:44:06,375 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 21:44:06,375 INFO L85 PathProgramCache]: Analyzing trace with hash -882700504, now seen corresponding path program 2 times [2022-12-12 21:44:06,375 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 21:44:06,375 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [800502018] [2022-12-12 21:44:06,375 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 21:44:06,375 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 21:44:06,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 21:44:07,917 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 21:44:07,918 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 21:44:07,918 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [800502018] [2022-12-12 21:44:07,918 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [800502018] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 21:44:07,918 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 21:44:07,918 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-12-12 21:44:07,918 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1767833498] [2022-12-12 21:44:07,918 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 21:44:07,919 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-12-12 21:44:07,919 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 21:44:07,919 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-12-12 21:44:07,919 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2022-12-12 21:44:07,919 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 73 [2022-12-12 21:44:07,919 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 92 places, 1079 transitions, 29909 flow. Second operand has 11 states, 11 states have (on average 13.727272727272727) internal successors, (151), 11 states have internal predecessors, (151), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 21:44:07,920 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 21:44:07,920 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 73 [2022-12-12 21:44:07,920 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 21:44:19,018 INFO L130 PetriNetUnfolder]: 29588/48548 cut-off events. [2022-12-12 21:44:19,019 INFO L131 PetriNetUnfolder]: For 341102/341594 co-relation queries the response was YES. [2022-12-12 21:44:19,199 INFO L83 FinitePrefix]: Finished finitePrefix Result has 604354 conditions, 48548 events. 29588/48548 cut-off events. For 341102/341594 co-relation queries the response was YES. Maximal size of possible extension queue 2807. Compared 417879 event pairs, 1269 based on Foata normal form. 588/40737 useless extension candidates. Maximal degree in co-relation 604303. Up to 45788 conditions per place. [2022-12-12 21:44:19,469 INFO L137 encePairwiseOnDemand]: 65/73 looper letters, 1357 selfloop transitions, 243 changer transitions 213/1837 dead transitions. [2022-12-12 21:44:19,469 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 101 places, 1837 transitions, 54837 flow [2022-12-12 21:44:19,470 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-12-12 21:44:19,470 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2022-12-12 21:44:19,471 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 265 transitions. [2022-12-12 21:44:19,471 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.363013698630137 [2022-12-12 21:44:19,472 INFO L295 CegarLoopForPetriNet]: 86 programPoint places, 15 predicate places. [2022-12-12 21:44:19,472 INFO L82 GeneralOperation]: Start removeDead. Operand has 101 places, 1837 transitions, 54837 flow [2022-12-12 21:44:20,020 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 101 places, 1624 transitions, 48444 flow [2022-12-12 21:44:20,021 INFO L495 AbstractCegarLoop]: Abstraction has has 101 places, 1624 transitions, 48444 flow [2022-12-12 21:44:20,021 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 13.727272727272727) internal successors, (151), 11 states have internal predecessors, (151), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 21:44:20,021 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 21:44:20,026 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-12 21:44:20,026 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-12-12 21:44:20,026 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-12-12 21:44:20,026 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 21:44:20,027 INFO L85 PathProgramCache]: Analyzing trace with hash -1956836886, now seen corresponding path program 3 times [2022-12-12 21:44:20,027 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 21:44:20,028 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [571707555] [2022-12-12 21:44:20,028 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 21:44:20,028 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 21:44:20,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 21:44:21,690 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 21:44:21,690 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 21:44:21,690 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [571707555] [2022-12-12 21:44:21,690 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [571707555] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 21:44:21,690 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 21:44:21,690 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-12-12 21:44:21,691 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1702041985] [2022-12-12 21:44:21,691 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 21:44:21,691 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-12-12 21:44:21,691 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 21:44:21,691 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-12-12 21:44:21,691 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2022-12-12 21:44:21,692 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 73 [2022-12-12 21:44:21,692 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 101 places, 1624 transitions, 48444 flow. Second operand has 11 states, 11 states have (on average 13.727272727272727) internal successors, (151), 11 states have internal predecessors, (151), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 21:44:21,692 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 21:44:21,692 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 73 [2022-12-12 21:44:21,692 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 21:44:43,598 INFO L130 PetriNetUnfolder]: 39701/67896 cut-off events. [2022-12-12 21:44:43,599 INFO L131 PetriNetUnfolder]: For 505204/505966 co-relation queries the response was YES. [2022-12-12 21:44:43,822 INFO L83 FinitePrefix]: Finished finitePrefix Result has 883006 conditions, 67896 events. 39701/67896 cut-off events. For 505204/505966 co-relation queries the response was YES. Maximal size of possible extension queue 4622. Compared 652328 event pairs, 2106 based on Foata normal form. 343/56258 useless extension candidates. Maximal degree in co-relation 882952. Up to 64310 conditions per place. [2022-12-12 21:44:44,240 INFO L137 encePairwiseOnDemand]: 65/73 looper letters, 1936 selfloop transitions, 198 changer transitions 320/2478 dead transitions. [2022-12-12 21:44:44,240 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 109 places, 2478 transitions, 79038 flow [2022-12-12 21:44:44,241 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-12-12 21:44:44,241 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2022-12-12 21:44:44,242 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 248 transitions. [2022-12-12 21:44:44,242 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.3774733637747336 [2022-12-12 21:44:44,243 INFO L295 CegarLoopForPetriNet]: 86 programPoint places, 23 predicate places. [2022-12-12 21:44:44,259 INFO L82 GeneralOperation]: Start removeDead. Operand has 109 places, 2478 transitions, 79038 flow [2022-12-12 21:44:44,723 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 106 places, 2158 transitions, 68768 flow [2022-12-12 21:44:44,723 INFO L495 AbstractCegarLoop]: Abstraction has has 106 places, 2158 transitions, 68768 flow [2022-12-12 21:44:44,724 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 13.727272727272727) internal successors, (151), 11 states have internal predecessors, (151), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 21:44:44,724 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 21:44:44,724 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-12 21:44:44,724 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-12-12 21:44:44,724 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-12-12 21:44:44,725 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 21:44:44,725 INFO L85 PathProgramCache]: Analyzing trace with hash 2012807042, now seen corresponding path program 2 times [2022-12-12 21:44:44,725 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 21:44:44,725 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [132396630] [2022-12-12 21:44:44,725 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 21:44:44,725 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 21:44:44,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 21:44:45,442 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 21:44:45,442 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 21:44:45,442 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [132396630] [2022-12-12 21:44:45,442 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [132396630] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 21:44:45,442 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 21:44:45,442 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-12-12 21:44:45,442 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [475106790] [2022-12-12 21:44:45,442 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 21:44:45,443 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-12-12 21:44:45,443 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 21:44:45,443 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-12-12 21:44:45,443 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-12-12 21:44:45,443 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 73 [2022-12-12 21:44:45,443 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 106 places, 2158 transitions, 68768 flow. Second operand has 8 states, 8 states have (on average 14.25) internal successors, (114), 8 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 21:44:45,444 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 21:44:45,444 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 73 [2022-12-12 21:44:45,444 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 21:45:12,996 INFO L130 PetriNetUnfolder]: 40998/68886 cut-off events. [2022-12-12 21:45:12,996 INFO L131 PetriNetUnfolder]: For 559366/559784 co-relation queries the response was YES. [2022-12-12 21:45:13,256 INFO L83 FinitePrefix]: Finished finitePrefix Result has 949251 conditions, 68886 events. 40998/68886 cut-off events. For 559366/559784 co-relation queries the response was YES. Maximal size of possible extension queue 4752. Compared 646609 event pairs, 2037 based on Foata normal form. 250/56802 useless extension candidates. Maximal degree in co-relation 949194. Up to 65611 conditions per place. [2022-12-12 21:45:13,652 INFO L137 encePairwiseOnDemand]: 64/73 looper letters, 1975 selfloop transitions, 236 changer transitions 262/2497 dead transitions. [2022-12-12 21:45:13,653 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 112 places, 2497 transitions, 84562 flow [2022-12-12 21:45:13,653 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-12 21:45:13,653 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2022-12-12 21:45:13,654 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 173 transitions. [2022-12-12 21:45:13,654 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.3385518590998043 [2022-12-12 21:45:13,654 INFO L295 CegarLoopForPetriNet]: 86 programPoint places, 26 predicate places. [2022-12-12 21:45:13,654 INFO L82 GeneralOperation]: Start removeDead. Operand has 112 places, 2497 transitions, 84562 flow [2022-12-12 21:45:14,063 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 109 places, 2235 transitions, 75633 flow [2022-12-12 21:45:14,064 INFO L495 AbstractCegarLoop]: Abstraction has has 109 places, 2235 transitions, 75633 flow [2022-12-12 21:45:14,064 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 14.25) internal successors, (114), 8 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 21:45:14,064 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 21:45:14,064 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-12 21:45:14,064 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-12-12 21:45:14,064 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-12-12 21:45:14,065 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 21:45:14,065 INFO L85 PathProgramCache]: Analyzing trace with hash 1737500522, now seen corresponding path program 3 times [2022-12-12 21:45:14,065 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 21:45:14,065 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [958434936] [2022-12-12 21:45:14,065 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 21:45:14,065 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 21:45:14,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 21:45:15,558 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 21:45:15,558 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 21:45:15,558 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [958434936] [2022-12-12 21:45:15,558 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [958434936] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 21:45:15,559 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 21:45:15,559 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-12 21:45:15,559 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [403717033] [2022-12-12 21:45:15,559 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 21:45:15,559 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-12-12 21:45:15,559 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 21:45:15,559 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-12-12 21:45:15,560 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2022-12-12 21:45:15,560 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 73 [2022-12-12 21:45:15,560 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 109 places, 2235 transitions, 75633 flow. Second operand has 9 states, 9 states have (on average 14.0) internal successors, (126), 9 states have internal predecessors, (126), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 21:45:15,560 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 21:45:15,560 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 73 [2022-12-12 21:45:15,560 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand