/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/mix027_power.oepc_pso.oepc_rmo.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.repeated-lipton-a802222-m [2022-12-12 21:35:19,800 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-12 21:35:19,802 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-12 21:35:19,861 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-12 21:35:19,861 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-12 21:35:19,864 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-12 21:35:19,867 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-12 21:35:19,871 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-12 21:35:19,875 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-12 21:35:19,880 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-12 21:35:19,881 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-12 21:35:19,883 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-12 21:35:19,883 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-12 21:35:19,886 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-12 21:35:19,887 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-12 21:35:19,889 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-12 21:35:19,890 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-12 21:35:19,891 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-12 21:35:19,894 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-12 21:35:19,898 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-12 21:35:19,900 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-12 21:35:19,901 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-12 21:35:19,902 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-12 21:35:19,903 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-12 21:35:19,909 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-12 21:35:19,910 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-12 21:35:19,910 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-12 21:35:19,912 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-12 21:35:19,912 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-12 21:35:19,913 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-12 21:35:19,913 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-12 21:35:19,915 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-12 21:35:19,916 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-12 21:35:19,917 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-12 21:35:19,917 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-12 21:35:19,918 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-12 21:35:19,918 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-12 21:35:19,918 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-12 21:35:19,918 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-12 21:35:19,919 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-12 21:35:19,920 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-12 21:35:19,921 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 21:35:19,954 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-12 21:35:19,955 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-12 21:35:19,956 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-12 21:35:19,956 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-12 21:35:19,957 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-12 21:35:19,958 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-12 21:35:19,958 INFO L138 SettingsManager]: * Use SBE=true [2022-12-12 21:35:19,958 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-12 21:35:19,959 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-12 21:35:19,959 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-12 21:35:19,959 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-12 21:35:19,960 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-12 21:35:19,960 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-12 21:35:19,960 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-12 21:35:19,960 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-12 21:35:19,960 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-12 21:35:19,960 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-12 21:35:19,960 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-12 21:35:19,961 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-12 21:35:19,961 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-12 21:35:19,961 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-12 21:35:19,961 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-12-12 21:35:19,961 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-12 21:35:19,961 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-12 21:35:19,962 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-12 21:35:19,962 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-12 21:35:19,962 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-12 21:35:19,962 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-12 21:35:19,962 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-12 21:35:19,962 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-12 21:35:19,962 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use on-demand Petri net difference -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Size reduction to apply after Petri net difference -> REMOVE_DEAD [2022-12-12 21:35:20,283 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-12 21:35:20,304 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-12 21:35:20,306 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-12 21:35:20,307 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-12 21:35:20,308 INFO L275 PluginConnector]: CDTParser initialized [2022-12-12 21:35:20,309 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/mix027_power.oepc_pso.oepc_rmo.oepc.i [2022-12-12 21:35:21,461 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-12 21:35:21,742 INFO L351 CDTParser]: Found 1 translation units. [2022-12-12 21:35:21,743 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/mix027_power.oepc_pso.oepc_rmo.oepc.i [2022-12-12 21:35:21,767 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ef4c2b1b6/6145fecde993408f904972661ed0e8d2/FLAGbba191129 [2022-12-12 21:35:21,778 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ef4c2b1b6/6145fecde993408f904972661ed0e8d2 [2022-12-12 21:35:21,780 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-12 21:35:21,781 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-12-12 21:35:21,782 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-12 21:35:21,782 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-12 21:35:21,784 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-12 21:35:21,785 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.12 09:35:21" (1/1) ... [2022-12-12 21:35:21,785 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@13807442 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 09:35:21, skipping insertion in model container [2022-12-12 21:35:21,786 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.12 09:35:21" (1/1) ... [2022-12-12 21:35:21,791 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-12 21:35:21,836 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-12 21:35:21,970 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/mix027_power.oepc_pso.oepc_rmo.oepc.i[969,982] [2022-12-12 21:35:22,135 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 21:35:22,139 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 21:35:22,139 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 21:35:22,140 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 21:35:22,140 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 21:35:22,146 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 21:35:22,147 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 21:35:22,149 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 21:35:22,151 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 21:35:22,151 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 21:35:22,151 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 21:35:22,151 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 21:35:22,151 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 21:35:22,159 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 21:35:22,160 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 21:35:22,160 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 21:35:22,161 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 21:35:22,161 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 21:35:22,161 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 21:35:22,161 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 21:35:22,162 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 21:35:22,164 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 21:35:22,164 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 21:35:22,164 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 21:35:22,165 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 21:35:22,165 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 21:35:22,166 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 21:35:22,166 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 21:35:22,171 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 21:35:22,178 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 21:35:22,179 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 21:35:22,181 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 21:35:22,181 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 21:35:22,181 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 21:35:22,200 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 21:35:22,201 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 21:35:22,201 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 21:35:22,203 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 21:35:22,204 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 21:35:22,204 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 21:35:22,206 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-12 21:35:22,216 INFO L203 MainTranslator]: Completed pre-run [2022-12-12 21:35:22,228 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/mix027_power.oepc_pso.oepc_rmo.oepc.i[969,982] [2022-12-12 21:35:22,258 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 21:35:22,259 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 21:35:22,259 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 21:35:22,259 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 21:35:22,259 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 21:35:22,261 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 21:35:22,261 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 21:35:22,262 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 21:35:22,262 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 21:35:22,262 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 21:35:22,263 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 21:35:22,263 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 21:35:22,263 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 21:35:22,265 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 21:35:22,265 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 21:35:22,265 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 21:35:22,266 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 21:35:22,266 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 21:35:22,266 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 21:35:22,266 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 21:35:22,267 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 21:35:22,268 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 21:35:22,269 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 21:35:22,269 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 21:35:22,269 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 21:35:22,270 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 21:35:22,270 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 21:35:22,270 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 21:35:22,270 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 21:35:22,276 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 21:35:22,276 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 21:35:22,278 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 21:35:22,278 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 21:35:22,278 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 21:35:22,281 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 21:35:22,281 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 21:35:22,282 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 21:35:22,284 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 21:35:22,285 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 21:35:22,285 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 21:35:22,286 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-12 21:35:22,320 INFO L208 MainTranslator]: Completed translation [2022-12-12 21:35:22,321 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 09:35:22 WrapperNode [2022-12-12 21:35:22,321 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-12 21:35:22,322 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-12 21:35:22,322 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-12 21:35:22,322 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-12 21:35:22,327 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 09:35:22" (1/1) ... [2022-12-12 21:35:22,341 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 09:35:22" (1/1) ... [2022-12-12 21:35:22,365 INFO L138 Inliner]: procedures = 177, calls = 69, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 144 [2022-12-12 21:35:22,369 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-12 21:35:22,369 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-12 21:35:22,369 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-12 21:35:22,370 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-12 21:35:22,376 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 09:35:22" (1/1) ... [2022-12-12 21:35:22,376 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 09:35:22" (1/1) ... [2022-12-12 21:35:22,380 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 09:35:22" (1/1) ... [2022-12-12 21:35:22,380 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 09:35:22" (1/1) ... [2022-12-12 21:35:22,391 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 09:35:22" (1/1) ... [2022-12-12 21:35:22,393 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 09:35:22" (1/1) ... [2022-12-12 21:35:22,395 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 09:35:22" (1/1) ... [2022-12-12 21:35:22,396 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 09:35:22" (1/1) ... [2022-12-12 21:35:22,400 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-12 21:35:22,419 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-12 21:35:22,419 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-12 21:35:22,419 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-12 21:35:22,420 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 09:35:22" (1/1) ... [2022-12-12 21:35:22,424 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-12 21:35:22,435 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-12 21:35:22,451 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 21:35:22,483 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 21:35:22,499 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-12 21:35:22,499 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-12-12 21:35:22,499 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-12 21:35:22,499 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-12 21:35:22,500 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-12 21:35:22,500 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2022-12-12 21:35:22,500 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2022-12-12 21:35:22,500 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2022-12-12 21:35:22,500 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2022-12-12 21:35:22,500 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2022-12-12 21:35:22,500 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2022-12-12 21:35:22,500 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2022-12-12 21:35:22,500 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2022-12-12 21:35:22,500 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-12 21:35:22,501 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-12-12 21:35:22,501 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-12 21:35:22,501 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-12 21:35:22,502 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 21:35:22,670 INFO L236 CfgBuilder]: Building ICFG [2022-12-12 21:35:22,672 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-12 21:35:23,058 INFO L277 CfgBuilder]: Performing block encoding [2022-12-12 21:35:23,213 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-12 21:35:23,213 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-12 21:35:23,216 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.12 09:35:23 BoogieIcfgContainer [2022-12-12 21:35:23,216 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-12 21:35:23,219 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-12 21:35:23,219 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-12 21:35:23,222 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-12 21:35:23,223 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.12 09:35:21" (1/3) ... [2022-12-12 21:35:23,223 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@58b9b95a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.12 09:35:23, skipping insertion in model container [2022-12-12 21:35:23,224 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 09:35:22" (2/3) ... [2022-12-12 21:35:23,224 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@58b9b95a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.12 09:35:23, skipping insertion in model container [2022-12-12 21:35:23,224 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.12 09:35:23" (3/3) ... [2022-12-12 21:35:23,225 INFO L112 eAbstractionObserver]: Analyzing ICFG mix027_power.oepc_pso.oepc_rmo.oepc.i [2022-12-12 21:35:23,243 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-12 21:35:23,244 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-12-12 21:35:23,244 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-12-12 21:35:23,364 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-12-12 21:35:23,406 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 141 places, 130 transitions, 280 flow [2022-12-12 21:35:23,483 INFO L130 PetriNetUnfolder]: 2/126 cut-off events. [2022-12-12 21:35:23,484 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-12 21:35:23,490 INFO L83 FinitePrefix]: Finished finitePrefix Result has 139 conditions, 126 events. 2/126 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 71 event pairs, 0 based on Foata normal form. 0/122 useless extension candidates. Maximal degree in co-relation 88. Up to 2 conditions per place. [2022-12-12 21:35:23,490 INFO L82 GeneralOperation]: Start removeDead. Operand has 141 places, 130 transitions, 280 flow [2022-12-12 21:35:23,497 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 137 places, 126 transitions, 264 flow [2022-12-12 21:35:23,499 INFO L203 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-12 21:35:23,529 INFO L174 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 137 places, 126 transitions, 264 flow [2022-12-12 21:35:23,535 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 137 places, 126 transitions, 264 flow [2022-12-12 21:35:23,574 INFO L130 PetriNetUnfolder]: 2/126 cut-off events. [2022-12-12 21:35:23,579 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-12 21:35:23,582 INFO L83 FinitePrefix]: Finished finitePrefix Result has 139 conditions, 126 events. 2/126 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 71 event pairs, 0 based on Foata normal form. 0/122 useless extension candidates. Maximal degree in co-relation 88. Up to 2 conditions per place. [2022-12-12 21:35:23,586 INFO L222 LiptonReduction]: Starting Lipton reduction on Petri net that has 137 places, 126 transitions, 264 flow [2022-12-12 21:35:23,586 INFO L226 LiptonReduction]: Number of co-enabled transitions 3164 [2022-12-12 21:35:29,122 INFO L241 LiptonReduction]: Total number of compositions: 99 [2022-12-12 21:35:29,140 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-12 21:35:29,145 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;@486ae190, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, Conditionality=CONDITIONAL_DISJUNCTIVE, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-12 21:35:29,145 INFO L358 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2022-12-12 21:35:29,148 INFO L130 PetriNetUnfolder]: 0/3 cut-off events. [2022-12-12 21:35:29,148 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-12 21:35:29,148 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 21:35:29,148 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2022-12-12 21:35:29,149 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting P0Err0ASSERT_VIOLATIONERROR_FUNCTION === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-12-12 21:35:29,152 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 21:35:29,153 INFO L85 PathProgramCache]: Analyzing trace with hash 568663, now seen corresponding path program 1 times [2022-12-12 21:35:29,158 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 21:35:29,159 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1116969959] [2022-12-12 21:35:29,159 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 21:35:29,159 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 21:35:29,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 21:35:29,507 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 21:35:29,507 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 21:35:29,508 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1116969959] [2022-12-12 21:35:29,508 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1116969959] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 21:35:29,508 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 21:35:29,508 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-12-12 21:35:29,509 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1845699440] [2022-12-12 21:35:29,510 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 21:35:29,517 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-12 21:35:29,517 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 21:35:29,540 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-12 21:35:29,541 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-12 21:35:29,542 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 17 out of 83 [2022-12-12 21:35:29,544 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 95 places, 83 transitions, 178 flow. Second operand has 3 states, 3 states have (on average 18.0) internal successors, (54), 3 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 21:35:29,544 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 21:35:29,544 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 17 of 83 [2022-12-12 21:35:29,545 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 21:35:37,962 INFO L130 PetriNetUnfolder]: 66790/97374 cut-off events. [2022-12-12 21:35:37,962 INFO L131 PetriNetUnfolder]: For 144/144 co-relation queries the response was YES. [2022-12-12 21:35:38,210 INFO L83 FinitePrefix]: Finished finitePrefix Result has 185663 conditions, 97374 events. 66790/97374 cut-off events. For 144/144 co-relation queries the response was YES. Maximal size of possible extension queue 4514. Compared 790516 event pairs, 9970 based on Foata normal form. 0/63342 useless extension candidates. Maximal degree in co-relation 185651. Up to 73765 conditions per place. [2022-12-12 21:35:38,363 INFO L137 encePairwiseOnDemand]: 78/83 looper letters, 48 selfloop transitions, 2 changer transitions 71/137 dead transitions. [2022-12-12 21:35:38,363 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 95 places, 137 transitions, 535 flow [2022-12-12 21:35:38,364 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-12 21:35:38,366 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-12 21:35:38,373 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 176 transitions. [2022-12-12 21:35:38,376 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.7068273092369478 [2022-12-12 21:35:38,380 INFO L295 CegarLoopForPetriNet]: 95 programPoint places, 0 predicate places. [2022-12-12 21:35:38,380 INFO L82 GeneralOperation]: Start removeDead. Operand has 95 places, 137 transitions, 535 flow [2022-12-12 21:35:38,509 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 59 places, 66 transitions, 253 flow [2022-12-12 21:35:38,510 INFO L495 AbstractCegarLoop]: Abstraction has has 59 places, 66 transitions, 253 flow [2022-12-12 21:35:38,511 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.0) internal successors, (54), 3 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 21:35:38,511 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 21:35:38,511 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-12 21:35:38,511 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-12 21:35:38,511 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-12-12 21:35:38,519 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 21:35:38,519 INFO L85 PathProgramCache]: Analyzing trace with hash 486257866, now seen corresponding path program 1 times [2022-12-12 21:35:38,519 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 21:35:38,520 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [270187322] [2022-12-12 21:35:38,520 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 21:35:38,520 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 21:35:38,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 21:35:38,871 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 21:35:38,872 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 21:35:38,873 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [270187322] [2022-12-12 21:35:38,873 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [270187322] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 21:35:38,873 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 21:35:38,873 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-12-12 21:35:38,874 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2131661029] [2022-12-12 21:35:38,874 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 21:35:38,875 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-12 21:35:38,875 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 21:35:38,875 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-12 21:35:38,876 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-12 21:35:38,876 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 83 [2022-12-12 21:35:38,876 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 59 places, 66 transitions, 253 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 21:35:38,877 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 21:35:38,877 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 83 [2022-12-12 21:35:38,877 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 21:35:43,433 INFO L130 PetriNetUnfolder]: 44861/62391 cut-off events. [2022-12-12 21:35:43,434 INFO L131 PetriNetUnfolder]: For 8763/8763 co-relation queries the response was YES. [2022-12-12 21:35:43,617 INFO L83 FinitePrefix]: Finished finitePrefix Result has 171134 conditions, 62391 events. 44861/62391 cut-off events. For 8763/8763 co-relation queries the response was YES. Maximal size of possible extension queue 2120. Compared 405051 event pairs, 5009 based on Foata normal form. 1348/53907 useless extension candidates. Maximal degree in co-relation 171119. Up to 42374 conditions per place. [2022-12-12 21:35:43,847 INFO L137 encePairwiseOnDemand]: 74/83 looper letters, 89 selfloop transitions, 11 changer transitions 2/113 dead transitions. [2022-12-12 21:35:43,848 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 61 places, 113 transitions, 647 flow [2022-12-12 21:35:43,848 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-12 21:35:43,849 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-12 21:35:43,852 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 98 transitions. [2022-12-12 21:35:43,853 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.39357429718875503 [2022-12-12 21:35:43,854 INFO L295 CegarLoopForPetriNet]: 95 programPoint places, -34 predicate places. [2022-12-12 21:35:43,854 INFO L82 GeneralOperation]: Start removeDead. Operand has 61 places, 113 transitions, 647 flow [2022-12-12 21:35:44,213 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 60 places, 111 transitions, 639 flow [2022-12-12 21:35:44,214 INFO L495 AbstractCegarLoop]: Abstraction has has 60 places, 111 transitions, 639 flow [2022-12-12 21:35:44,214 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 21:35:44,214 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 21:35:44,214 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-12 21:35:44,214 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-12 21:35:44,214 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-12-12 21:35:44,215 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 21:35:44,215 INFO L85 PathProgramCache]: Analyzing trace with hash -2105877137, now seen corresponding path program 1 times [2022-12-12 21:35:44,215 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 21:35:44,215 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [245261105] [2022-12-12 21:35:44,216 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 21:35:44,216 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 21:35:44,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 21:35:44,393 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 21:35:44,394 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 21:35:44,397 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [245261105] [2022-12-12 21:35:44,398 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [245261105] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 21:35:44,398 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 21:35:44,398 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-12 21:35:44,398 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1514915847] [2022-12-12 21:35:44,398 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 21:35:44,399 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-12 21:35:44,399 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 21:35:44,399 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-12 21:35:44,399 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-12-12 21:35:44,400 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 83 [2022-12-12 21:35:44,400 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 60 places, 111 transitions, 639 flow. Second operand has 4 states, 4 states have (on average 15.0) internal successors, (60), 4 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 21:35:44,400 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 21:35:44,401 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 83 [2022-12-12 21:35:44,401 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 21:35:48,137 INFO L130 PetriNetUnfolder]: 35023/49512 cut-off events. [2022-12-12 21:35:48,137 INFO L131 PetriNetUnfolder]: For 5545/5545 co-relation queries the response was YES. [2022-12-12 21:35:48,252 INFO L83 FinitePrefix]: Finished finitePrefix Result has 184320 conditions, 49512 events. 35023/49512 cut-off events. For 5545/5545 co-relation queries the response was YES. Maximal size of possible extension queue 1711. Compared 317624 event pairs, 1252 based on Foata normal form. 60/41678 useless extension candidates. Maximal degree in co-relation 184302. Up to 35161 conditions per place. [2022-12-12 21:35:48,416 INFO L137 encePairwiseOnDemand]: 74/83 looper letters, 131 selfloop transitions, 17 changer transitions 0/159 dead transitions. [2022-12-12 21:35:48,416 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 63 places, 159 transitions, 1223 flow [2022-12-12 21:35:48,417 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-12 21:35:48,417 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-12-12 21:35:48,418 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 123 transitions. [2022-12-12 21:35:48,418 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.3704819277108434 [2022-12-12 21:35:48,419 INFO L295 CegarLoopForPetriNet]: 95 programPoint places, -32 predicate places. [2022-12-12 21:35:48,419 INFO L82 GeneralOperation]: Start removeDead. Operand has 63 places, 159 transitions, 1223 flow [2022-12-12 21:35:48,596 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 63 places, 159 transitions, 1223 flow [2022-12-12 21:35:48,597 INFO L495 AbstractCegarLoop]: Abstraction has has 63 places, 159 transitions, 1223 flow [2022-12-12 21:35:48,597 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.0) internal successors, (60), 4 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 21:35:48,597 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 21:35:48,597 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-12 21:35:48,597 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-12 21:35:48,597 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-12-12 21:35:48,598 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 21:35:48,598 INFO L85 PathProgramCache]: Analyzing trace with hash -2105876858, now seen corresponding path program 1 times [2022-12-12 21:35:48,598 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 21:35:48,598 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [506981998] [2022-12-12 21:35:48,598 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 21:35:48,598 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 21:35:48,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 21:35:48,732 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 21:35:48,732 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 21:35:48,732 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [506981998] [2022-12-12 21:35:48,733 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [506981998] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 21:35:48,733 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 21:35:48,733 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-12 21:35:48,734 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [223458138] [2022-12-12 21:35:48,734 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 21:35:48,734 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-12 21:35:48,734 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 21:35:48,735 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-12 21:35:48,736 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-12-12 21:35:48,736 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 83 [2022-12-12 21:35:48,736 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 63 places, 159 transitions, 1223 flow. Second operand has 4 states, 4 states have (on average 15.0) internal successors, (60), 4 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 21:35:48,736 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 21:35:48,736 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 83 [2022-12-12 21:35:48,737 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 21:35:52,290 INFO L130 PetriNetUnfolder]: 33205/46801 cut-off events. [2022-12-12 21:35:52,290 INFO L131 PetriNetUnfolder]: For 5478/5478 co-relation queries the response was YES. [2022-12-12 21:35:52,429 INFO L83 FinitePrefix]: Finished finitePrefix Result has 219582 conditions, 46801 events. 33205/46801 cut-off events. For 5478/5478 co-relation queries the response was YES. Maximal size of possible extension queue 1571. Compared 293123 event pairs, 868 based on Foata normal form. 336/39585 useless extension candidates. Maximal degree in co-relation 219561. Up to 33576 conditions per place. [2022-12-12 21:35:52,723 INFO L137 encePairwiseOnDemand]: 75/83 looper letters, 191 selfloop transitions, 10 changer transitions 0/212 dead transitions. [2022-12-12 21:35:52,724 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 66 places, 212 transitions, 2037 flow [2022-12-12 21:35:52,727 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-12 21:35:52,727 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-12-12 21:35:52,728 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 119 transitions. [2022-12-12 21:35:52,728 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.35843373493975905 [2022-12-12 21:35:52,729 INFO L295 CegarLoopForPetriNet]: 95 programPoint places, -29 predicate places. [2022-12-12 21:35:52,729 INFO L82 GeneralOperation]: Start removeDead. Operand has 66 places, 212 transitions, 2037 flow [2022-12-12 21:35:52,902 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 66 places, 212 transitions, 2037 flow [2022-12-12 21:35:52,902 INFO L495 AbstractCegarLoop]: Abstraction has has 66 places, 212 transitions, 2037 flow [2022-12-12 21:35:52,902 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.0) internal successors, (60), 4 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 21:35:52,902 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 21:35:52,902 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-12 21:35:52,902 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-12-12 21:35:52,902 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-12-12 21:35:52,903 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 21:35:52,903 INFO L85 PathProgramCache]: Analyzing trace with hash -857676569, now seen corresponding path program 1 times [2022-12-12 21:35:52,903 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 21:35:52,903 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1896934634] [2022-12-12 21:35:52,903 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 21:35:52,903 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 21:35:52,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 21:35:53,031 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 21:35:53,031 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 21:35:53,031 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1896934634] [2022-12-12 21:35:53,032 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1896934634] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 21:35:53,032 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 21:35:53,032 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-12 21:35:53,032 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1590693149] [2022-12-12 21:35:53,032 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 21:35:53,032 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-12 21:35:53,032 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 21:35:53,033 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-12 21:35:53,034 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-12-12 21:35:53,035 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 83 [2022-12-12 21:35:53,036 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 66 places, 212 transitions, 2037 flow. Second operand has 4 states, 4 states have (on average 15.25) internal successors, (61), 4 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 21:35:53,036 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 21:35:53,036 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 83 [2022-12-12 21:35:53,036 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 21:35:57,018 INFO L130 PetriNetUnfolder]: 32783/46219 cut-off events. [2022-12-12 21:35:57,019 INFO L131 PetriNetUnfolder]: For 5411/5411 co-relation queries the response was YES. [2022-12-12 21:35:57,138 INFO L83 FinitePrefix]: Finished finitePrefix Result has 260865 conditions, 46219 events. 32783/46219 cut-off events. For 5411/5411 co-relation queries the response was YES. Maximal size of possible extension queue 1541. Compared 288933 event pairs, 820 based on Foata normal form. 60/38785 useless extension candidates. Maximal degree in co-relation 260841. Up to 33249 conditions per place. [2022-12-12 21:35:57,376 INFO L137 encePairwiseOnDemand]: 74/83 looper letters, 261 selfloop transitions, 34 changer transitions 0/306 dead transitions. [2022-12-12 21:35:57,376 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 69 places, 306 transitions, 3564 flow [2022-12-12 21:35:57,377 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-12 21:35:57,377 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-12-12 21:35:57,378 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 130 transitions. [2022-12-12 21:35:57,378 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.39156626506024095 [2022-12-12 21:35:57,379 INFO L295 CegarLoopForPetriNet]: 95 programPoint places, -26 predicate places. [2022-12-12 21:35:57,379 INFO L82 GeneralOperation]: Start removeDead. Operand has 69 places, 306 transitions, 3564 flow [2022-12-12 21:35:57,617 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 69 places, 306 transitions, 3564 flow [2022-12-12 21:35:57,617 INFO L495 AbstractCegarLoop]: Abstraction has has 69 places, 306 transitions, 3564 flow [2022-12-12 21:35:57,617 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.25) internal successors, (61), 4 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 21:35:57,617 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 21:35:57,618 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-12 21:35:57,618 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-12-12 21:35:57,618 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-12-12 21:35:57,618 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 21:35:57,618 INFO L85 PathProgramCache]: Analyzing trace with hash -818382772, now seen corresponding path program 1 times [2022-12-12 21:35:57,619 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 21:35:57,619 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [627448489] [2022-12-12 21:35:57,619 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 21:35:57,619 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 21:35:57,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 21:35:57,797 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 21:35:57,798 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 21:35:57,798 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [627448489] [2022-12-12 21:35:57,798 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [627448489] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 21:35:57,798 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 21:35:57,798 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-12 21:35:57,798 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1933350225] [2022-12-12 21:35:57,799 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 21:35:57,799 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-12 21:35:57,799 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 21:35:57,800 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-12 21:35:57,800 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-12 21:35:57,800 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 13 out of 83 [2022-12-12 21:35:57,801 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 69 places, 306 transitions, 3564 flow. Second operand has 4 states, 4 states have (on average 16.25) internal successors, (65), 4 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 21:35:57,801 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 21:35:57,801 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 13 of 83 [2022-12-12 21:35:57,801 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 21:36:06,034 INFO L130 PetriNetUnfolder]: 65778/90274 cut-off events. [2022-12-12 21:36:06,035 INFO L131 PetriNetUnfolder]: For 175955/179112 co-relation queries the response was YES. [2022-12-12 21:36:06,312 INFO L83 FinitePrefix]: Finished finitePrefix Result has 552853 conditions, 90274 events. 65778/90274 cut-off events. For 175955/179112 co-relation queries the response was YES. Maximal size of possible extension queue 3145. Compared 585456 event pairs, 6663 based on Foata normal form. 5797/82606 useless extension candidates. Maximal degree in co-relation 552826. Up to 62724 conditions per place. [2022-12-12 21:36:06,640 INFO L137 encePairwiseOnDemand]: 68/83 looper letters, 367 selfloop transitions, 87 changer transitions 369/859 dead transitions. [2022-12-12 21:36:06,640 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 73 places, 859 transitions, 11765 flow [2022-12-12 21:36:06,641 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-12 21:36:06,641 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-12-12 21:36:06,641 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 169 transitions. [2022-12-12 21:36:06,642 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.4072289156626506 [2022-12-12 21:36:06,642 INFO L295 CegarLoopForPetriNet]: 95 programPoint places, -22 predicate places. [2022-12-12 21:36:06,642 INFO L82 GeneralOperation]: Start removeDead. Operand has 73 places, 859 transitions, 11765 flow [2022-12-12 21:36:07,097 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 71 places, 490 transitions, 6679 flow [2022-12-12 21:36:07,097 INFO L495 AbstractCegarLoop]: Abstraction has has 71 places, 490 transitions, 6679 flow [2022-12-12 21:36:07,098 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.25) internal successors, (65), 4 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 21:36:07,098 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 21:36:07,098 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 21:36:07,098 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-12-12 21:36:07,098 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-12-12 21:36:07,099 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 21:36:07,099 INFO L85 PathProgramCache]: Analyzing trace with hash 2045666325, now seen corresponding path program 1 times [2022-12-12 21:36:07,099 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 21:36:07,099 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [174242759] [2022-12-12 21:36:07,099 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 21:36:07,099 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 21:36:07,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 21:36:07,279 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 21:36:07,280 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 21:36:07,280 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [174242759] [2022-12-12 21:36:07,280 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [174242759] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 21:36:07,280 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 21:36:07,280 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-12 21:36:07,280 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [929360174] [2022-12-12 21:36:07,281 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 21:36:07,281 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-12 21:36:07,281 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 21:36:07,281 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-12 21:36:07,281 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-12 21:36:07,282 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 83 [2022-12-12 21:36:07,282 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 71 places, 490 transitions, 6679 flow. Second operand has 3 states, 3 states have (on average 20.333333333333332) internal successors, (61), 3 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 21:36:07,282 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 21:36:07,282 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 83 [2022-12-12 21:36:07,282 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 21:36:18,286 INFO L130 PetriNetUnfolder]: 79714/109309 cut-off events. [2022-12-12 21:36:18,286 INFO L131 PetriNetUnfolder]: For 281864/283754 co-relation queries the response was YES. [2022-12-12 21:36:18,644 INFO L83 FinitePrefix]: Finished finitePrefix Result has 754641 conditions, 109309 events. 79714/109309 cut-off events. For 281864/283754 co-relation queries the response was YES. Maximal size of possible extension queue 3558. Compared 719788 event pairs, 9327 based on Foata normal form. 1903/94171 useless extension candidates. Maximal degree in co-relation 754611. Up to 96432 conditions per place. [2022-12-12 21:36:19,136 INFO L137 encePairwiseOnDemand]: 80/83 looper letters, 516 selfloop transitions, 19 changer transitions 60/628 dead transitions. [2022-12-12 21:36:19,137 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 73 places, 628 transitions, 9823 flow [2022-12-12 21:36:19,137 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-12 21:36:19,137 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-12 21:36:19,137 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 99 transitions. [2022-12-12 21:36:19,137 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.39759036144578314 [2022-12-12 21:36:19,138 INFO L295 CegarLoopForPetriNet]: 95 programPoint places, -22 predicate places. [2022-12-12 21:36:19,138 INFO L82 GeneralOperation]: Start removeDead. Operand has 73 places, 628 transitions, 9823 flow [2022-12-12 21:36:19,509 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 73 places, 568 transitions, 8855 flow [2022-12-12 21:36:19,509 INFO L495 AbstractCegarLoop]: Abstraction has has 73 places, 568 transitions, 8855 flow [2022-12-12 21:36:19,509 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.333333333333332) internal successors, (61), 3 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 21:36:19,509 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 21:36:19,510 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 21:36:19,510 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-12-12 21:36:19,510 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-12-12 21:36:19,510 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 21:36:19,510 INFO L85 PathProgramCache]: Analyzing trace with hash 17581022, now seen corresponding path program 1 times [2022-12-12 21:36:19,510 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 21:36:19,511 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [571684093] [2022-12-12 21:36:19,511 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 21:36:19,511 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 21:36:19,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 21:36:19,674 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 21:36:19,675 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 21:36:19,675 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [571684093] [2022-12-12 21:36:19,675 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [571684093] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 21:36:19,675 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 21:36:19,675 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-12 21:36:19,675 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [977121301] [2022-12-12 21:36:19,676 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 21:36:19,677 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-12 21:36:19,677 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 21:36:19,677 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-12 21:36:19,677 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-12-12 21:36:19,678 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 13 out of 83 [2022-12-12 21:36:19,678 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 73 places, 568 transitions, 8855 flow. Second operand has 5 states, 5 states have (on average 16.0) internal successors, (80), 5 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 21:36:19,678 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 21:36:19,678 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 13 of 83 [2022-12-12 21:36:19,678 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 21:36:30,409 INFO L130 PetriNetUnfolder]: 64818/93484 cut-off events. [2022-12-12 21:36:30,410 INFO L131 PetriNetUnfolder]: For 260043/264656 co-relation queries the response was YES. [2022-12-12 21:36:30,909 INFO L83 FinitePrefix]: Finished finitePrefix Result has 724780 conditions, 93484 events. 64818/93484 cut-off events. For 260043/264656 co-relation queries the response was YES. Maximal size of possible extension queue 3818. Compared 681951 event pairs, 4545 based on Foata normal form. 8881/87824 useless extension candidates. Maximal degree in co-relation 724747. Up to 82034 conditions per place. [2022-12-12 21:36:31,181 INFO L137 encePairwiseOnDemand]: 68/83 looper letters, 451 selfloop transitions, 197 changer transitions 374/1056 dead transitions. [2022-12-12 21:36:31,181 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 78 places, 1056 transitions, 18584 flow [2022-12-12 21:36:31,182 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-12 21:36:31,182 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-12-12 21:36:31,182 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 207 transitions. [2022-12-12 21:36:31,183 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.41566265060240964 [2022-12-12 21:36:31,183 INFO L295 CegarLoopForPetriNet]: 95 programPoint places, -17 predicate places. [2022-12-12 21:36:31,183 INFO L82 GeneralOperation]: Start removeDead. Operand has 78 places, 1056 transitions, 18584 flow [2022-12-12 21:36:31,460 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 76 places, 682 transitions, 11948 flow [2022-12-12 21:36:31,461 INFO L495 AbstractCegarLoop]: Abstraction has has 76 places, 682 transitions, 11948 flow [2022-12-12 21:36:31,461 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.0) internal successors, (80), 5 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 21:36:31,461 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 21:36:31,461 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-12 21:36:31,461 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-12-12 21:36:31,461 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-12-12 21:36:31,462 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 21:36:31,462 INFO L85 PathProgramCache]: Analyzing trace with hash 1930880796, now seen corresponding path program 1 times [2022-12-12 21:36:31,462 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 21:36:31,462 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2141252945] [2022-12-12 21:36:31,462 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 21:36:31,462 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 21:36:31,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 21:36:31,680 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 21:36:31,680 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 21:36:31,681 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2141252945] [2022-12-12 21:36:31,682 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2141252945] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 21:36:31,682 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 21:36:31,682 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-12 21:36:31,682 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1597807549] [2022-12-12 21:36:31,685 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 21:36:31,685 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-12 21:36:31,685 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 21:36:31,686 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-12 21:36:31,686 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2022-12-12 21:36:31,686 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 13 out of 83 [2022-12-12 21:36:31,686 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 76 places, 682 transitions, 11948 flow. Second operand has 6 states, 6 states have (on average 16.0) internal successors, (96), 6 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 21:36:31,686 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 21:36:31,686 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 13 of 83 [2022-12-12 21:36:31,687 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 21:36:39,153 INFO L130 PetriNetUnfolder]: 35216/53829 cut-off events. [2022-12-12 21:36:39,153 INFO L131 PetriNetUnfolder]: For 184982/188737 co-relation queries the response was YES. [2022-12-12 21:36:39,333 INFO L83 FinitePrefix]: Finished finitePrefix Result has 466040 conditions, 53829 events. 35216/53829 cut-off events. For 184982/188737 co-relation queries the response was YES. Maximal size of possible extension queue 2246. Compared 408034 event pairs, 765 based on Foata normal form. 6324/52027 useless extension candidates. Maximal degree in co-relation 466004. Up to 46493 conditions per place. [2022-12-12 21:36:39,627 INFO L137 encePairwiseOnDemand]: 68/83 looper letters, 408 selfloop transitions, 247 changer transitions 250/939 dead transitions. [2022-12-12 21:36:39,627 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 82 places, 939 transitions, 18249 flow [2022-12-12 21:36:39,628 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-12 21:36:39,628 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2022-12-12 21:36:39,629 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 243 transitions. [2022-12-12 21:36:39,629 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.41824440619621345 [2022-12-12 21:36:39,629 INFO L295 CegarLoopForPetriNet]: 95 programPoint places, -13 predicate places. [2022-12-12 21:36:39,630 INFO L82 GeneralOperation]: Start removeDead. Operand has 82 places, 939 transitions, 18249 flow [2022-12-12 21:36:39,784 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 80 places, 689 transitions, 13342 flow [2022-12-12 21:36:39,784 INFO L495 AbstractCegarLoop]: Abstraction has has 80 places, 689 transitions, 13342 flow [2022-12-12 21:36:39,785 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 16.0) internal successors, (96), 6 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 21:36:39,785 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 21:36:39,785 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-12 21:36:39,785 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-12-12 21:36:39,785 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-12-12 21:36:39,785 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 21:36:39,785 INFO L85 PathProgramCache]: Analyzing trace with hash 1812551933, now seen corresponding path program 1 times [2022-12-12 21:36:39,785 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 21:36:39,785 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [815486847] [2022-12-12 21:36:39,786 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 21:36:39,786 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 21:36:39,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 21:36:40,589 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 21:36:40,589 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 21:36:40,589 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [815486847] [2022-12-12 21:36:40,590 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [815486847] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 21:36:40,590 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 21:36:40,590 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-12 21:36:40,590 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1777144007] [2022-12-12 21:36:40,590 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 21:36:40,590 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-12 21:36:40,590 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 21:36:40,591 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-12 21:36:40,591 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-12-12 21:36:40,591 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 16 out of 83 [2022-12-12 21:36:40,591 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 80 places, 689 transitions, 13342 flow. Second operand has 7 states, 7 states have (on average 18.857142857142858) internal successors, (132), 7 states have internal predecessors, (132), 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 21:36:40,591 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 21:36:40,591 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 16 of 83 [2022-12-12 21:36:40,592 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 21:36:50,177 INFO L130 PetriNetUnfolder]: 42850/69341 cut-off events. [2022-12-12 21:36:50,178 INFO L131 PetriNetUnfolder]: For 286392/288859 co-relation queries the response was YES. [2022-12-12 21:36:50,443 INFO L83 FinitePrefix]: Finished finitePrefix Result has 634636 conditions, 69341 events. 42850/69341 cut-off events. For 286392/288859 co-relation queries the response was YES. Maximal size of possible extension queue 3375. Compared 601811 event pairs, 1669 based on Foata normal form. 897/59415 useless extension candidates. Maximal degree in co-relation 634597. Up to 60488 conditions per place. [2022-12-12 21:36:50,685 INFO L137 encePairwiseOnDemand]: 76/83 looper letters, 996 selfloop transitions, 103 changer transitions 337/1486 dead transitions. [2022-12-12 21:36:50,685 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 86 places, 1486 transitions, 32238 flow [2022-12-12 21:36:50,686 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-12 21:36:50,686 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2022-12-12 21:36:50,686 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 217 transitions. [2022-12-12 21:36:50,687 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.37349397590361444 [2022-12-12 21:36:50,687 INFO L295 CegarLoopForPetriNet]: 95 programPoint places, -9 predicate places. [2022-12-12 21:36:50,687 INFO L82 GeneralOperation]: Start removeDead. Operand has 86 places, 1486 transitions, 32238 flow [2022-12-12 21:36:51,040 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 84 places, 1149 transitions, 24821 flow [2022-12-12 21:36:51,040 INFO L495 AbstractCegarLoop]: Abstraction has has 84 places, 1149 transitions, 24821 flow [2022-12-12 21:36:51,040 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 18.857142857142858) internal successors, (132), 7 states have internal predecessors, (132), 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 21:36:51,040 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 21:36:51,041 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-12 21:36:51,041 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-12-12 21:36:51,041 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-12-12 21:36:51,041 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 21:36:51,041 INFO L85 PathProgramCache]: Analyzing trace with hash -1394939974, now seen corresponding path program 1 times [2022-12-12 21:36:51,041 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 21:36:51,041 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [482654233] [2022-12-12 21:36:51,041 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 21:36:51,042 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 21:36:51,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 21:36:51,251 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 21:36:51,252 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 21:36:51,252 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [482654233] [2022-12-12 21:36:51,252 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [482654233] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 21:36:51,252 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 21:36:51,252 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-12-12 21:36:51,252 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [563562934] [2022-12-12 21:36:51,252 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 21:36:51,253 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-12 21:36:51,253 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 21:36:51,253 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-12 21:36:51,253 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-12-12 21:36:51,253 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 13 out of 83 [2022-12-12 21:36:51,254 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 84 places, 1149 transitions, 24821 flow. Second operand has 7 states, 7 states have (on average 16.0) internal successors, (112), 7 states have internal predecessors, (112), 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 21:36:51,254 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 21:36:51,254 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 13 of 83 [2022-12-12 21:36:51,254 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand