/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-RepeatedSemanticLbeWithDisjunctivePredicates.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/weaver/array-eq-trans.wvr.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.repeated-lipton-a802222-m [2022-12-13 12:29:18,072 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-13 12:29:18,073 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-13 12:29:18,107 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-13 12:29:18,107 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-13 12:29:18,108 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-13 12:29:18,109 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-13 12:29:18,110 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-13 12:29:18,115 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-13 12:29:18,119 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-13 12:29:18,120 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-13 12:29:18,122 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-13 12:29:18,122 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-13 12:29:18,124 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-13 12:29:18,126 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-13 12:29:18,128 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-13 12:29:18,128 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-13 12:29:18,129 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-13 12:29:18,134 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-13 12:29:18,138 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-13 12:29:18,139 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-13 12:29:18,141 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-13 12:29:18,142 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-13 12:29:18,143 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-13 12:29:18,148 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-13 12:29:18,148 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-13 12:29:18,149 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-13 12:29:18,150 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-13 12:29:18,150 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-13 12:29:18,151 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-13 12:29:18,151 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-13 12:29:18,152 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-13 12:29:18,153 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-13 12:29:18,154 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-13 12:29:18,154 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-13 12:29:18,154 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-13 12:29:18,155 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-13 12:29:18,155 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-13 12:29:18,155 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-13 12:29:18,156 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-13 12:29:18,156 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-13 12:29:18,160 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-RepeatedSemanticLbeWithDisjunctivePredicates.epf [2022-12-13 12:29:18,186 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-13 12:29:18,186 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-13 12:29:18,188 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-13 12:29:18,188 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-13 12:29:18,188 INFO L138 SettingsManager]: * Use SBE=true [2022-12-13 12:29:18,189 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-13 12:29:18,189 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-13 12:29:18,189 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-13 12:29:18,189 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-13 12:29:18,189 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-13 12:29:18,190 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-13 12:29:18,190 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-13 12:29:18,190 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-13 12:29:18,190 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-13 12:29:18,190 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-13 12:29:18,190 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-13 12:29:18,190 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-13 12:29:18,190 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-13 12:29:18,191 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-13 12:29:18,191 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-12-13 12:29:18,191 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-13 12:29:18,191 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 12:29:18,191 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-13 12:29:18,191 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-13 12:29:18,191 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-13 12:29:18,191 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-13 12:29:18,191 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-13 12:29:18,191 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=REPEATED_LIPTON_PN [2022-12-13 12:29:18,192 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-12-13 12:29:18,544 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-13 12:29:18,559 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-13 12:29:18,560 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-13 12:29:18,561 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-13 12:29:18,562 INFO L275 PluginConnector]: CDTParser initialized [2022-12-13 12:29:18,563 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/array-eq-trans.wvr.c [2022-12-13 12:29:19,559 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-13 12:29:19,755 INFO L351 CDTParser]: Found 1 translation units. [2022-12-13 12:29:19,756 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/array-eq-trans.wvr.c [2022-12-13 12:29:19,760 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/84b24b523/d71bbeec86584b9091e915576a0fe94f/FLAGc919f814c [2022-12-13 12:29:19,774 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/84b24b523/d71bbeec86584b9091e915576a0fe94f [2022-12-13 12:29:19,776 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-13 12:29:19,777 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-12-13 12:29:19,778 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-13 12:29:19,778 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-13 12:29:19,780 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-13 12:29:19,780 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 12:29:19" (1/1) ... [2022-12-13 12:29:19,781 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@302f7a7a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:29:19, skipping insertion in model container [2022-12-13 12:29:19,781 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 12:29:19" (1/1) ... [2022-12-13 12:29:19,786 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-13 12:29:19,798 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-13 12:29:19,926 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/array-eq-trans.wvr.c[2737,2750] [2022-12-13 12:29:19,939 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 12:29:19,947 INFO L203 MainTranslator]: Completed pre-run [2022-12-13 12:29:19,966 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/array-eq-trans.wvr.c[2737,2750] [2022-12-13 12:29:19,971 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 12:29:19,981 INFO L208 MainTranslator]: Completed translation [2022-12-13 12:29:19,982 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:29:19 WrapperNode [2022-12-13 12:29:19,982 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-13 12:29:19,983 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-13 12:29:19,983 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-13 12:29:19,984 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-13 12:29:19,989 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:29:19" (1/1) ... [2022-12-13 12:29:20,005 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:29:19" (1/1) ... [2022-12-13 12:29:20,031 INFO L138 Inliner]: procedures = 24, calls = 46, calls flagged for inlining = 10, calls inlined = 14, statements flattened = 204 [2022-12-13 12:29:20,032 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-13 12:29:20,032 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-13 12:29:20,032 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-13 12:29:20,033 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-13 12:29:20,038 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:29:19" (1/1) ... [2022-12-13 12:29:20,039 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:29:19" (1/1) ... [2022-12-13 12:29:20,052 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:29:19" (1/1) ... [2022-12-13 12:29:20,052 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:29:19" (1/1) ... [2022-12-13 12:29:20,060 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:29:19" (1/1) ... [2022-12-13 12:29:20,063 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:29:19" (1/1) ... [2022-12-13 12:29:20,064 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:29:19" (1/1) ... [2022-12-13 12:29:20,065 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:29:19" (1/1) ... [2022-12-13 12:29:20,077 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-13 12:29:20,078 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-13 12:29:20,078 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-13 12:29:20,078 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-13 12:29:20,078 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:29:19" (1/1) ... [2022-12-13 12:29:20,082 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 12:29:20,090 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-13 12:29:20,100 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) [2022-12-13 12:29:20,130 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 [2022-12-13 12:29:20,143 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-13 12:29:20,144 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-12-13 12:29:20,145 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-12-13 12:29:20,145 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-12-13 12:29:20,145 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-12-13 12:29:20,145 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2022-12-13 12:29:20,145 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2022-12-13 12:29:20,145 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-13 12:29:20,145 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-13 12:29:20,145 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-13 12:29:20,145 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-12-13 12:29:20,145 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-13 12:29:20,145 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-13 12:29:20,146 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-13 12:29:20,146 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-13 12:29:20,147 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2022-12-13 12:29:20,243 INFO L236 CfgBuilder]: Building ICFG [2022-12-13 12:29:20,244 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-13 12:29:20,543 INFO L277 CfgBuilder]: Performing block encoding [2022-12-13 12:29:20,556 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-13 12:29:20,556 INFO L302 CfgBuilder]: Removed 6 assume(true) statements. [2022-12-13 12:29:20,558 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 12:29:20 BoogieIcfgContainer [2022-12-13 12:29:20,558 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-13 12:29:20,560 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-13 12:29:20,560 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-13 12:29:20,562 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-13 12:29:20,562 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.12 12:29:19" (1/3) ... [2022-12-13 12:29:20,563 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1b0fa9be and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 12:29:20, skipping insertion in model container [2022-12-13 12:29:20,563 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:29:19" (2/3) ... [2022-12-13 12:29:20,563 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1b0fa9be and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 12:29:20, skipping insertion in model container [2022-12-13 12:29:20,563 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 12:29:20" (3/3) ... [2022-12-13 12:29:20,564 INFO L112 eAbstractionObserver]: Analyzing ICFG array-eq-trans.wvr.c [2022-12-13 12:29:20,577 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-13 12:29:20,577 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-12-13 12:29:20,577 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-12-13 12:29:20,643 INFO L144 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2022-12-13 12:29:20,669 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 261 places, 281 transitions, 586 flow [2022-12-13 12:29:20,776 INFO L130 PetriNetUnfolder]: 30/278 cut-off events. [2022-12-13 12:29:20,776 INFO L131 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2022-12-13 12:29:20,782 INFO L83 FinitePrefix]: Finished finitePrefix Result has 291 conditions, 278 events. 30/278 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 238 event pairs, 0 based on Foata normal form. 0/247 useless extension candidates. Maximal degree in co-relation 183. Up to 3 conditions per place. [2022-12-13 12:29:20,782 INFO L82 GeneralOperation]: Start removeDead. Operand has 261 places, 281 transitions, 586 flow [2022-12-13 12:29:20,793 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 248 places, 268 transitions, 554 flow [2022-12-13 12:29:20,794 INFO L203 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-13 12:29:20,811 INFO L174 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 248 places, 268 transitions, 554 flow [2022-12-13 12:29:20,816 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 248 places, 268 transitions, 554 flow [2022-12-13 12:29:20,920 INFO L130 PetriNetUnfolder]: 30/268 cut-off events. [2022-12-13 12:29:20,921 INFO L131 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2022-12-13 12:29:20,921 INFO L83 FinitePrefix]: Finished finitePrefix Result has 281 conditions, 268 events. 30/268 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 235 event pairs, 0 based on Foata normal form. 0/238 useless extension candidates. Maximal degree in co-relation 183. Up to 3 conditions per place. [2022-12-13 12:29:20,935 INFO L222 LiptonReduction]: Starting Lipton reduction on Petri net that has 248 places, 268 transitions, 554 flow [2022-12-13 12:29:20,936 INFO L226 LiptonReduction]: Number of co-enabled transitions 2688 [2022-12-13 12:29:31,244 INFO L241 LiptonReduction]: Total number of compositions: 235 [2022-12-13 12:29:31,272 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-13 12:29:31,277 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, mAutomataTypeConcurrency=REPEATED_LIPTON_PN, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@2fb38801, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, Conditionality=CONDITIONAL_DISJUNCTIVE, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-13 12:29:31,277 INFO L358 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2022-12-13 12:29:31,281 INFO L130 PetriNetUnfolder]: 8/28 cut-off events. [2022-12-13 12:29:31,281 INFO L131 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2022-12-13 12:29:31,281 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-13 12:29:31,282 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 12:29:31,282 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-12-13 12:29:31,285 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 12:29:31,285 INFO L85 PathProgramCache]: Analyzing trace with hash 1493623861, now seen corresponding path program 1 times [2022-12-13 12:29:31,297 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 12:29:31,297 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1483420865] [2022-12-13 12:29:31,297 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 12:29:31,298 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 12:29:31,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 12:29:32,068 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 12:29:32,069 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 12:29:32,069 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1483420865] [2022-12-13 12:29:32,070 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1483420865] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 12:29:32,070 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 12:29:32,070 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-13 12:29:32,071 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [110609003] [2022-12-13 12:29:32,072 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 12:29:32,081 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-13 12:29:32,081 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 12:29:32,098 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-13 12:29:32,099 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2022-12-13 12:29:32,100 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 0 out of 29 [2022-12-13 12:29:32,101 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 31 places, 29 transitions, 76 flow. Second operand has 6 states, 5 states have (on average 3.8) internal successors, (19), 5 states have internal predecessors, (19), 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) [2022-12-13 12:29:32,101 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 12:29:32,101 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 0 of 29 [2022-12-13 12:29:32,101 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 12:29:32,364 INFO L130 PetriNetUnfolder]: 563/806 cut-off events. [2022-12-13 12:29:32,364 INFO L131 PetriNetUnfolder]: For 63/63 co-relation queries the response was YES. [2022-12-13 12:29:32,366 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1722 conditions, 806 events. 563/806 cut-off events. For 63/63 co-relation queries the response was YES. Maximal size of possible extension queue 43. Compared 2422 event pairs, 279 based on Foata normal form. 2/522 useless extension candidates. Maximal degree in co-relation 490. Up to 289 conditions per place. [2022-12-13 12:29:32,368 INFO L137 encePairwiseOnDemand]: 20/29 looper letters, 28 selfloop transitions, 2 changer transitions 49/79 dead transitions. [2022-12-13 12:29:32,368 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 37 places, 79 transitions, 370 flow [2022-12-13 12:29:32,369 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-13 12:29:32,371 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2022-12-13 12:29:32,375 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 83 transitions. [2022-12-13 12:29:32,377 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.4088669950738916 [2022-12-13 12:29:32,378 INFO L175 Difference]: Start difference. First operand has 31 places, 29 transitions, 76 flow. Second operand 7 states and 83 transitions. [2022-12-13 12:29:32,378 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 37 places, 79 transitions, 370 flow [2022-12-13 12:29:32,381 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 31 places, 79 transitions, 334 flow, removed 0 selfloop flow, removed 6 redundant places. [2022-12-13 12:29:32,383 INFO L231 Difference]: Finished difference. Result has 36 places, 30 transitions, 94 flow [2022-12-13 12:29:32,384 INFO L277 CegarLoopForPetriNet]: {PETRI_ALPHABET=29, PETRI_DIFFERENCE_MINUEND_FLOW=64, PETRI_DIFFERENCE_MINUEND_PLACES=25, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=29, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=27, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=94, PETRI_PLACES=36, PETRI_TRANSITIONS=30} [2022-12-13 12:29:32,386 INFO L295 CegarLoopForPetriNet]: 31 programPoint places, 5 predicate places. [2022-12-13 12:29:32,386 WARN L178 eatedLiptonReduction]: Counterexample is not a run of mAbstraction. Replaying acceptance of the word... [2022-12-13 12:29:32,387 INFO L89 Accepts]: Start accepts. Operand has 36 places, 30 transitions, 94 flow [2022-12-13 12:29:32,389 INFO L95 Accepts]: Finished accepts. [2022-12-13 12:29:32,389 INFO L203 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-13 12:29:32,389 INFO L174 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 36 places, 30 transitions, 94 flow [2022-12-13 12:29:32,390 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 32 places, 30 transitions, 94 flow [2022-12-13 12:29:32,393 INFO L130 PetriNetUnfolder]: 8/30 cut-off events. [2022-12-13 12:29:32,393 INFO L131 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2022-12-13 12:29:32,394 INFO L83 FinitePrefix]: Finished finitePrefix Result has 54 conditions, 30 events. 8/30 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 18 event pairs, 0 based on Foata normal form. 0/24 useless extension candidates. Maximal degree in co-relation 42. Up to 4 conditions per place. [2022-12-13 12:29:32,395 INFO L222 LiptonReduction]: Starting Lipton reduction on Petri net that has 32 places, 30 transitions, 94 flow [2022-12-13 12:29:32,395 INFO L226 LiptonReduction]: Number of co-enabled transitions 164 [2022-12-13 12:29:33,469 INFO L241 LiptonReduction]: Total number of compositions: 1 [2022-12-13 12:29:33,471 INFO L158 eatedLiptonReduction]: Time needed for LBE in milliseconds: 1085 [2022-12-13 12:29:33,471 INFO L495 AbstractCegarLoop]: Abstraction has has 31 places, 29 transitions, 90 flow [2022-12-13 12:29:33,471 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 3.8) internal successors, (19), 5 states have internal predecessors, (19), 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) [2022-12-13 12:29:33,471 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-13 12:29:33,471 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 12:29:33,471 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-13 12:29:33,471 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-12-13 12:29:33,472 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 12:29:33,472 INFO L85 PathProgramCache]: Analyzing trace with hash 145550818, now seen corresponding path program 1 times [2022-12-13 12:29:33,472 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 12:29:33,472 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [516134929] [2022-12-13 12:29:33,472 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 12:29:33,472 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 12:29:33,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 12:29:33,622 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 12:29:33,623 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 12:29:33,623 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [516134929] [2022-12-13 12:29:33,623 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [516134929] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 12:29:33,624 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 12:29:33,626 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-13 12:29:33,630 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [763592715] [2022-12-13 12:29:33,631 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 12:29:33,631 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-13 12:29:33,632 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 12:29:33,632 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-13 12:29:33,632 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-13 12:29:33,632 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 0 out of 29 [2022-12-13 12:29:33,632 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 31 places, 29 transitions, 90 flow. Second operand has 4 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 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) [2022-12-13 12:29:33,632 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 12:29:33,632 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 0 of 29 [2022-12-13 12:29:33,632 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 12:29:33,776 INFO L130 PetriNetUnfolder]: 470/667 cut-off events. [2022-12-13 12:29:33,776 INFO L131 PetriNetUnfolder]: For 187/187 co-relation queries the response was YES. [2022-12-13 12:29:33,777 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1516 conditions, 667 events. 470/667 cut-off events. For 187/187 co-relation queries the response was YES. Maximal size of possible extension queue 33. Compared 2089 event pairs, 93 based on Foata normal form. 1/478 useless extension candidates. Maximal degree in co-relation 1504. Up to 301 conditions per place. [2022-12-13 12:29:33,779 INFO L137 encePairwiseOnDemand]: 25/29 looper letters, 47 selfloop transitions, 2 changer transitions 17/66 dead transitions. [2022-12-13 12:29:33,779 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 34 places, 66 transitions, 318 flow [2022-12-13 12:29:33,779 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-13 12:29:33,779 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-12-13 12:29:33,779 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 67 transitions. [2022-12-13 12:29:33,780 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.5775862068965517 [2022-12-13 12:29:33,780 INFO L175 Difference]: Start difference. First operand has 31 places, 29 transitions, 90 flow. Second operand 4 states and 67 transitions. [2022-12-13 12:29:33,780 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 34 places, 66 transitions, 318 flow [2022-12-13 12:29:33,781 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 28 places, 66 transitions, 280 flow, removed 19 selfloop flow, removed 6 redundant places. [2022-12-13 12:29:33,781 INFO L231 Difference]: Finished difference. Result has 30 places, 30 transitions, 78 flow [2022-12-13 12:29:33,782 INFO L277 CegarLoopForPetriNet]: {PETRI_ALPHABET=29, PETRI_DIFFERENCE_MINUEND_FLOW=64, PETRI_DIFFERENCE_MINUEND_PLACES=25, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=29, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=27, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=78, PETRI_PLACES=30, PETRI_TRANSITIONS=30} [2022-12-13 12:29:33,782 INFO L295 CegarLoopForPetriNet]: 31 programPoint places, -1 predicate places. [2022-12-13 12:29:33,782 WARN L178 eatedLiptonReduction]: Counterexample is not a run of mAbstraction. Replaying acceptance of the word... [2022-12-13 12:29:33,782 INFO L89 Accepts]: Start accepts. Operand has 30 places, 30 transitions, 78 flow [2022-12-13 12:29:33,783 INFO L95 Accepts]: Finished accepts. [2022-12-13 12:29:33,783 INFO L203 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-13 12:29:33,783 INFO L174 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 30 places, 30 transitions, 78 flow [2022-12-13 12:29:33,783 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 29 places, 30 transitions, 78 flow [2022-12-13 12:29:33,787 INFO L130 PetriNetUnfolder]: 8/38 cut-off events. [2022-12-13 12:29:33,787 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 12:29:33,787 INFO L83 FinitePrefix]: Finished finitePrefix Result has 52 conditions, 38 events. 8/38 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 44 event pairs, 0 based on Foata normal form. 0/31 useless extension candidates. Maximal degree in co-relation 44. Up to 4 conditions per place. [2022-12-13 12:29:33,787 INFO L222 LiptonReduction]: Starting Lipton reduction on Petri net that has 29 places, 30 transitions, 78 flow [2022-12-13 12:29:33,787 INFO L226 LiptonReduction]: Number of co-enabled transitions 186 [2022-12-13 12:29:33,790 INFO L241 LiptonReduction]: Total number of compositions: 0 [2022-12-13 12:29:33,791 INFO L158 eatedLiptonReduction]: Time needed for LBE in milliseconds: 9 [2022-12-13 12:29:33,791 INFO L495 AbstractCegarLoop]: Abstraction has has 29 places, 30 transitions, 78 flow [2022-12-13 12:29:33,791 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 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) [2022-12-13 12:29:33,791 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-13 12:29:33,791 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] [2022-12-13 12:29:33,791 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-13 12:29:33,791 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-12-13 12:29:33,791 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 12:29:33,791 INFO L85 PathProgramCache]: Analyzing trace with hash 2031052794, now seen corresponding path program 1 times [2022-12-13 12:29:33,792 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 12:29:33,792 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [414138425] [2022-12-13 12:29:33,792 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 12:29:33,792 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 12:29:33,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 12:29:33,874 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 12:29:33,874 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 12:29:33,874 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [414138425] [2022-12-13 12:29:33,874 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [414138425] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 12:29:33,874 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 12:29:33,874 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-13 12:29:33,874 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [103106265] [2022-12-13 12:29:33,875 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 12:29:33,875 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-13 12:29:33,875 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 12:29:33,875 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-13 12:29:33,875 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-12-13 12:29:33,875 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 0 out of 29 [2022-12-13 12:29:33,876 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 29 places, 30 transitions, 78 flow. Second operand has 5 states, 5 states have (on average 4.0) internal successors, (20), 4 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:29:33,876 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 12:29:33,876 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 0 of 29 [2022-12-13 12:29:33,876 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 12:29:33,995 INFO L130 PetriNetUnfolder]: 451/656 cut-off events. [2022-12-13 12:29:33,996 INFO L131 PetriNetUnfolder]: For 22/22 co-relation queries the response was YES. [2022-12-13 12:29:33,996 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1435 conditions, 656 events. 451/656 cut-off events. For 22/22 co-relation queries the response was YES. Maximal size of possible extension queue 32. Compared 1982 event pairs, 119 based on Foata normal form. 40/514 useless extension candidates. Maximal degree in co-relation 1424. Up to 301 conditions per place. [2022-12-13 12:29:33,998 INFO L137 encePairwiseOnDemand]: 22/29 looper letters, 46 selfloop transitions, 4 changer transitions 29/79 dead transitions. [2022-12-13 12:29:33,998 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 34 places, 79 transitions, 347 flow [2022-12-13 12:29:33,998 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-13 12:29:33,998 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-12-13 12:29:33,999 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 81 transitions. [2022-12-13 12:29:33,999 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.46551724137931033 [2022-12-13 12:29:33,999 INFO L175 Difference]: Start difference. First operand has 29 places, 30 transitions, 78 flow. Second operand 6 states and 81 transitions. [2022-12-13 12:29:33,999 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 34 places, 79 transitions, 347 flow [2022-12-13 12:29:34,000 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 32 places, 79 transitions, 341 flow, removed 2 selfloop flow, removed 2 redundant places. [2022-12-13 12:29:34,001 INFO L231 Difference]: Finished difference. Result has 35 places, 31 transitions, 96 flow [2022-12-13 12:29:34,001 INFO L277 CegarLoopForPetriNet]: {PETRI_ALPHABET=29, PETRI_DIFFERENCE_MINUEND_FLOW=74, PETRI_DIFFERENCE_MINUEND_PLACES=27, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=30, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=26, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=96, PETRI_PLACES=35, PETRI_TRANSITIONS=31} [2022-12-13 12:29:34,001 INFO L295 CegarLoopForPetriNet]: 31 programPoint places, 4 predicate places. [2022-12-13 12:29:34,002 WARN L178 eatedLiptonReduction]: Counterexample is not a run of mAbstraction. Replaying acceptance of the word... [2022-12-13 12:29:34,002 INFO L89 Accepts]: Start accepts. Operand has 35 places, 31 transitions, 96 flow [2022-12-13 12:29:34,002 INFO L95 Accepts]: Finished accepts. [2022-12-13 12:29:34,002 INFO L203 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-13 12:29:34,002 INFO L174 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 35 places, 31 transitions, 96 flow [2022-12-13 12:29:34,003 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 33 places, 31 transitions, 96 flow [2022-12-13 12:29:34,006 INFO L130 PetriNetUnfolder]: 8/39 cut-off events. [2022-12-13 12:29:34,006 INFO L131 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2022-12-13 12:29:34,007 INFO L83 FinitePrefix]: Finished finitePrefix Result has 64 conditions, 39 events. 8/39 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 47 event pairs, 0 based on Foata normal form. 0/34 useless extension candidates. Maximal degree in co-relation 45. Up to 4 conditions per place. [2022-12-13 12:29:34,007 INFO L222 LiptonReduction]: Starting Lipton reduction on Petri net that has 33 places, 31 transitions, 96 flow [2022-12-13 12:29:34,007 INFO L226 LiptonReduction]: Number of co-enabled transitions 186 [2022-12-13 12:29:34,239 INFO L241 LiptonReduction]: Total number of compositions: 1 [2022-12-13 12:29:34,240 INFO L158 eatedLiptonReduction]: Time needed for LBE in milliseconds: 238 [2022-12-13 12:29:34,240 INFO L495 AbstractCegarLoop]: Abstraction has has 32 places, 30 transitions, 92 flow [2022-12-13 12:29:34,240 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 4.0) internal successors, (20), 4 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:29:34,240 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-13 12:29:34,240 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] [2022-12-13 12:29:34,240 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-13 12:29:34,240 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-12-13 12:29:34,241 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 12:29:34,241 INFO L85 PathProgramCache]: Analyzing trace with hash -1346834690, now seen corresponding path program 1 times [2022-12-13 12:29:34,241 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 12:29:34,241 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [126149017] [2022-12-13 12:29:34,241 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 12:29:34,241 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 12:29:34,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 12:29:34,354 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 12:29:34,354 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 12:29:34,354 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [126149017] [2022-12-13 12:29:34,355 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [126149017] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 12:29:34,355 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 12:29:34,355 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-13 12:29:34,355 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1922111267] [2022-12-13 12:29:34,355 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 12:29:34,355 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-13 12:29:34,355 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 12:29:34,356 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-13 12:29:34,356 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2022-12-13 12:29:34,356 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 0 out of 29 [2022-12-13 12:29:34,356 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 32 places, 30 transitions, 92 flow. Second operand has 6 states, 5 states have (on average 4.0) internal successors, (20), 5 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:29:34,356 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 12:29:34,356 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 0 of 29 [2022-12-13 12:29:34,356 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 12:29:34,538 INFO L130 PetriNetUnfolder]: 828/1186 cut-off events. [2022-12-13 12:29:34,538 INFO L131 PetriNetUnfolder]: For 494/494 co-relation queries the response was YES. [2022-12-13 12:29:34,539 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2787 conditions, 1186 events. 828/1186 cut-off events. For 494/494 co-relation queries the response was YES. Maximal size of possible extension queue 58. Compared 4110 event pairs, 205 based on Foata normal form. 2/887 useless extension candidates. Maximal degree in co-relation 2764. Up to 559 conditions per place. [2022-12-13 12:29:34,543 INFO L137 encePairwiseOnDemand]: 23/29 looper letters, 45 selfloop transitions, 4 changer transitions 16/65 dead transitions. [2022-12-13 12:29:34,543 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 37 places, 65 transitions, 324 flow [2022-12-13 12:29:34,543 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-13 12:29:34,543 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-12-13 12:29:34,544 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 63 transitions. [2022-12-13 12:29:34,544 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.3620689655172414 [2022-12-13 12:29:34,544 INFO L175 Difference]: Start difference. First operand has 32 places, 30 transitions, 92 flow. Second operand 6 states and 63 transitions. [2022-12-13 12:29:34,544 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 37 places, 65 transitions, 324 flow [2022-12-13 12:29:34,545 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 32 places, 65 transitions, 294 flow, removed 11 selfloop flow, removed 5 redundant places. [2022-12-13 12:29:34,545 INFO L231 Difference]: Finished difference. Result has 34 places, 31 transitions, 92 flow [2022-12-13 12:29:34,546 INFO L277 CegarLoopForPetriNet]: {PETRI_ALPHABET=29, PETRI_DIFFERENCE_MINUEND_FLOW=74, PETRI_DIFFERENCE_MINUEND_PLACES=27, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=30, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=26, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=92, PETRI_PLACES=34, PETRI_TRANSITIONS=31} [2022-12-13 12:29:34,546 INFO L295 CegarLoopForPetriNet]: 31 programPoint places, 3 predicate places. [2022-12-13 12:29:34,546 WARN L178 eatedLiptonReduction]: Counterexample is not a run of mAbstraction. Replaying acceptance of the word... [2022-12-13 12:29:34,546 INFO L89 Accepts]: Start accepts. Operand has 34 places, 31 transitions, 92 flow [2022-12-13 12:29:34,547 INFO L95 Accepts]: Finished accepts. [2022-12-13 12:29:34,547 INFO L203 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-13 12:29:34,547 INFO L174 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 34 places, 31 transitions, 92 flow [2022-12-13 12:29:34,547 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 33 places, 31 transitions, 92 flow [2022-12-13 12:29:34,553 INFO L130 PetriNetUnfolder]: 8/49 cut-off events. [2022-12-13 12:29:34,553 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 12:29:34,553 INFO L83 FinitePrefix]: Finished finitePrefix Result has 72 conditions, 49 events. 8/49 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 92 event pairs, 0 based on Foata normal form. 0/44 useless extension candidates. Maximal degree in co-relation 59. Up to 5 conditions per place. [2022-12-13 12:29:34,554 INFO L222 LiptonReduction]: Starting Lipton reduction on Petri net that has 33 places, 31 transitions, 92 flow [2022-12-13 12:29:34,554 INFO L226 LiptonReduction]: Number of co-enabled transitions 210 [2022-12-13 12:29:34,556 INFO L241 LiptonReduction]: Total number of compositions: 0 [2022-12-13 12:29:34,557 INFO L158 eatedLiptonReduction]: Time needed for LBE in milliseconds: 11 [2022-12-13 12:29:34,557 INFO L495 AbstractCegarLoop]: Abstraction has has 33 places, 31 transitions, 92 flow [2022-12-13 12:29:34,557 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 4.0) internal successors, (20), 5 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:29:34,557 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-13 12:29:34,557 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 12:29:34,557 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-12-13 12:29:34,558 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-12-13 12:29:34,558 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 12:29:34,558 INFO L85 PathProgramCache]: Analyzing trace with hash 841291468, now seen corresponding path program 1 times [2022-12-13 12:29:34,558 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 12:29:34,558 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [792046236] [2022-12-13 12:29:34,558 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 12:29:34,558 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 12:29:34,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 12:29:34,643 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 12:29:34,643 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 12:29:34,643 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [792046236] [2022-12-13 12:29:34,644 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [792046236] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 12:29:34,644 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 12:29:34,644 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-13 12:29:34,644 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1304432418] [2022-12-13 12:29:34,644 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 12:29:34,644 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-13 12:29:34,644 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 12:29:34,644 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-13 12:29:34,644 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-12-13 12:29:34,645 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 0 out of 29 [2022-12-13 12:29:34,645 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 33 places, 31 transitions, 92 flow. Second operand has 5 states, 5 states have (on average 4.2) internal successors, (21), 4 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:29:34,645 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 12:29:34,645 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 0 of 29 [2022-12-13 12:29:34,645 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 12:29:34,774 INFO L130 PetriNetUnfolder]: 791/1153 cut-off events. [2022-12-13 12:29:34,774 INFO L131 PetriNetUnfolder]: For 180/180 co-relation queries the response was YES. [2022-12-13 12:29:34,775 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2690 conditions, 1153 events. 791/1153 cut-off events. For 180/180 co-relation queries the response was YES. Maximal size of possible extension queue 54. Compared 3953 event pairs, 250 based on Foata normal form. 44/1075 useless extension candidates. Maximal degree in co-relation 2672. Up to 559 conditions per place. [2022-12-13 12:29:34,778 INFO L137 encePairwiseOnDemand]: 23/29 looper letters, 46 selfloop transitions, 4 changer transitions 16/66 dead transitions. [2022-12-13 12:29:34,778 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 37 places, 66 transitions, 316 flow [2022-12-13 12:29:34,779 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-13 12:29:34,779 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-12-13 12:29:34,779 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 64 transitions. [2022-12-13 12:29:34,779 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.4413793103448276 [2022-12-13 12:29:34,779 INFO L175 Difference]: Start difference. First operand has 33 places, 31 transitions, 92 flow. Second operand 5 states and 64 transitions. [2022-12-13 12:29:34,780 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 37 places, 66 transitions, 316 flow [2022-12-13 12:29:34,780 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 33 places, 66 transitions, 306 flow, removed 2 selfloop flow, removed 4 redundant places. [2022-12-13 12:29:34,781 INFO L231 Difference]: Finished difference. Result has 35 places, 32 transitions, 102 flow [2022-12-13 12:29:34,781 INFO L277 CegarLoopForPetriNet]: {PETRI_ALPHABET=29, PETRI_DIFFERENCE_MINUEND_FLOW=84, PETRI_DIFFERENCE_MINUEND_PLACES=29, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=31, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=27, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=102, PETRI_PLACES=35, PETRI_TRANSITIONS=32} [2022-12-13 12:29:34,781 INFO L295 CegarLoopForPetriNet]: 31 programPoint places, 4 predicate places. [2022-12-13 12:29:34,781 WARN L178 eatedLiptonReduction]: Counterexample is not a run of mAbstraction. Replaying acceptance of the word... [2022-12-13 12:29:34,781 INFO L89 Accepts]: Start accepts. Operand has 35 places, 32 transitions, 102 flow [2022-12-13 12:29:34,782 INFO L95 Accepts]: Finished accepts. [2022-12-13 12:29:34,782 INFO L203 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-13 12:29:34,782 INFO L174 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 35 places, 32 transitions, 102 flow [2022-12-13 12:29:34,782 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 34 places, 32 transitions, 102 flow [2022-12-13 12:29:34,787 INFO L130 PetriNetUnfolder]: 8/50 cut-off events. [2022-12-13 12:29:34,787 INFO L131 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2022-12-13 12:29:34,787 INFO L83 FinitePrefix]: Finished finitePrefix Result has 76 conditions, 50 events. 8/50 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 89 event pairs, 0 based on Foata normal form. 0/44 useless extension candidates. Maximal degree in co-relation 54. Up to 4 conditions per place. [2022-12-13 12:29:34,788 INFO L222 LiptonReduction]: Starting Lipton reduction on Petri net that has 34 places, 32 transitions, 102 flow [2022-12-13 12:29:34,788 INFO L226 LiptonReduction]: Number of co-enabled transitions 210 [2022-12-13 12:29:35,021 INFO L241 LiptonReduction]: Total number of compositions: 1 [2022-12-13 12:29:35,022 INFO L158 eatedLiptonReduction]: Time needed for LBE in milliseconds: 241 [2022-12-13 12:29:35,022 INFO L495 AbstractCegarLoop]: Abstraction has has 33 places, 31 transitions, 98 flow [2022-12-13 12:29:35,022 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 4.2) internal successors, (21), 4 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:29:35,022 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-13 12:29:35,022 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 12:29:35,022 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-12-13 12:29:35,023 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-12-13 12:29:35,023 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 12:29:35,023 INFO L85 PathProgramCache]: Analyzing trace with hash 69427538, now seen corresponding path program 1 times [2022-12-13 12:29:35,023 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 12:29:35,023 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [641116002] [2022-12-13 12:29:35,023 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 12:29:35,023 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 12:29:35,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 12:29:35,935 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 12:29:35,936 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 12:29:35,936 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [641116002] [2022-12-13 12:29:35,936 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [641116002] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 12:29:35,936 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 12:29:35,936 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-12-13 12:29:35,936 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [480146774] [2022-12-13 12:29:35,936 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 12:29:35,937 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-12-13 12:29:35,937 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 12:29:35,937 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-12-13 12:29:35,938 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2022-12-13 12:29:35,938 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 0 out of 29 [2022-12-13 12:29:35,938 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 33 places, 31 transitions, 98 flow. Second operand has 10 states, 9 states have (on average 2.3333333333333335) internal successors, (21), 9 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:29:35,938 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 12:29:35,938 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 0 of 29 [2022-12-13 12:29:35,938 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 12:29:36,249 INFO L130 PetriNetUnfolder]: 832/1189 cut-off events. [2022-12-13 12:29:36,249 INFO L131 PetriNetUnfolder]: For 336/336 co-relation queries the response was YES. [2022-12-13 12:29:36,251 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2873 conditions, 1189 events. 832/1189 cut-off events. For 336/336 co-relation queries the response was YES. Maximal size of possible extension queue 60. Compared 4304 event pairs, 61 based on Foata normal form. 1/1058 useless extension candidates. Maximal degree in co-relation 2845. Up to 1013 conditions per place. [2022-12-13 12:29:36,254 INFO L137 encePairwiseOnDemand]: 21/29 looper letters, 49 selfloop transitions, 9 changer transitions 1/59 dead transitions. [2022-12-13 12:29:36,254 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 38 places, 59 transitions, 293 flow [2022-12-13 12:29:36,255 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-13 12:29:36,255 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-12-13 12:29:36,257 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 58 transitions. [2022-12-13 12:29:36,257 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.3333333333333333 [2022-12-13 12:29:36,257 INFO L175 Difference]: Start difference. First operand has 33 places, 31 transitions, 98 flow. Second operand 6 states and 58 transitions. [2022-12-13 12:29:36,257 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 38 places, 59 transitions, 293 flow [2022-12-13 12:29:36,260 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 34 places, 59 transitions, 271 flow, removed 7 selfloop flow, removed 4 redundant places. [2022-12-13 12:29:36,261 INFO L231 Difference]: Finished difference. Result has 36 places, 37 transitions, 138 flow [2022-12-13 12:29:36,261 INFO L277 CegarLoopForPetriNet]: {PETRI_ALPHABET=29, PETRI_DIFFERENCE_MINUEND_FLOW=84, PETRI_DIFFERENCE_MINUEND_PLACES=29, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=31, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=24, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=138, PETRI_PLACES=36, PETRI_TRANSITIONS=37} [2022-12-13 12:29:36,263 INFO L295 CegarLoopForPetriNet]: 31 programPoint places, 5 predicate places. [2022-12-13 12:29:36,263 WARN L178 eatedLiptonReduction]: Counterexample is not a run of mAbstraction. Replaying acceptance of the word... [2022-12-13 12:29:36,263 INFO L89 Accepts]: Start accepts. Operand has 36 places, 37 transitions, 138 flow [2022-12-13 12:29:36,265 INFO L95 Accepts]: Finished accepts. [2022-12-13 12:29:36,265 INFO L203 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-13 12:29:36,265 INFO L174 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 36 places, 37 transitions, 138 flow [2022-12-13 12:29:36,265 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 36 places, 37 transitions, 138 flow [2022-12-13 12:29:36,272 INFO L130 PetriNetUnfolder]: 29/90 cut-off events. [2022-12-13 12:29:36,272 INFO L131 PetriNetUnfolder]: For 10/10 co-relation queries the response was YES. [2022-12-13 12:29:36,273 INFO L83 FinitePrefix]: Finished finitePrefix Result has 158 conditions, 90 events. 29/90 cut-off events. For 10/10 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 253 event pairs, 1 based on Foata normal form. 0/83 useless extension candidates. Maximal degree in co-relation 103. Up to 20 conditions per place. [2022-12-13 12:29:36,273 INFO L222 LiptonReduction]: Starting Lipton reduction on Petri net that has 36 places, 37 transitions, 138 flow [2022-12-13 12:29:36,273 INFO L226 LiptonReduction]: Number of co-enabled transitions 280 [2022-12-13 12:29:36,279 INFO L241 LiptonReduction]: Total number of compositions: 0 [2022-12-13 12:29:36,280 INFO L158 eatedLiptonReduction]: Time needed for LBE in milliseconds: 17 [2022-12-13 12:29:36,280 INFO L495 AbstractCegarLoop]: Abstraction has has 36 places, 37 transitions, 138 flow [2022-12-13 12:29:36,280 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.3333333333333335) internal successors, (21), 9 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:29:36,281 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-13 12:29:36,281 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] [2022-12-13 12:29:36,281 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-12-13 12:29:36,281 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-12-13 12:29:36,281 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 12:29:36,281 INFO L85 PathProgramCache]: Analyzing trace with hash 237856114, now seen corresponding path program 1 times [2022-12-13 12:29:36,281 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 12:29:36,281 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1155185746] [2022-12-13 12:29:36,282 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 12:29:36,282 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 12:29:36,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 12:29:36,512 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 12:29:36,512 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 12:29:36,512 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1155185746] [2022-12-13 12:29:36,512 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1155185746] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 12:29:36,512 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1605290829] [2022-12-13 12:29:36,512 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 12:29:36,513 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 12:29:36,513 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-13 12:29:36,515 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 12:29:36,518 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-12-13 12:29:36,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 12:29:36,660 INFO L263 TraceCheckSpWp]: Trace formula consists of 291 conjuncts, 12 conjunts are in the unsatisfiable core [2022-12-13 12:29:36,664 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 12:29:36,824 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 12:29:36,824 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 12:29:36,885 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 12:29:36,885 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1605290829] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-13 12:29:36,885 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-13 12:29:36,885 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 3, 3] total 12 [2022-12-13 12:29:36,885 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2102768586] [2022-12-13 12:29:36,885 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-13 12:29:36,886 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-12-13 12:29:36,886 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 12:29:36,886 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-12-13 12:29:36,887 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=144, Unknown=0, NotChecked=0, Total=182 [2022-12-13 12:29:36,887 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 0 out of 29 [2022-12-13 12:29:36,887 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 36 places, 37 transitions, 138 flow. Second operand has 14 states, 13 states have (on average 5.076923076923077) internal successors, (66), 13 states have internal predecessors, (66), 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) [2022-12-13 12:29:36,887 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 12:29:36,887 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 0 of 29 [2022-12-13 12:29:36,887 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 12:29:37,523 INFO L130 PetriNetUnfolder]: 2881/4161 cut-off events. [2022-12-13 12:29:37,523 INFO L131 PetriNetUnfolder]: For 2018/2018 co-relation queries the response was YES. [2022-12-13 12:29:37,527 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10769 conditions, 4161 events. 2881/4161 cut-off events. For 2018/2018 co-relation queries the response was YES. Maximal size of possible extension queue 191. Compared 19156 event pairs, 951 based on Foata normal form. 162/4321 useless extension candidates. Maximal degree in co-relation 5231. Up to 1190 conditions per place. [2022-12-13 12:29:37,537 INFO L137 encePairwiseOnDemand]: 19/29 looper letters, 125 selfloop transitions, 12 changer transitions 40/177 dead transitions. [2022-12-13 12:29:37,537 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 46 places, 177 transitions, 960 flow [2022-12-13 12:29:37,538 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-12-13 12:29:37,538 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2022-12-13 12:29:37,539 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 156 transitions. [2022-12-13 12:29:37,539 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.4890282131661442 [2022-12-13 12:29:37,539 INFO L175 Difference]: Start difference. First operand has 36 places, 37 transitions, 138 flow. Second operand 11 states and 156 transitions. [2022-12-13 12:29:37,539 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 46 places, 177 transitions, 960 flow [2022-12-13 12:29:37,541 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 44 places, 177 transitions, 950 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-12-13 12:29:37,543 INFO L231 Difference]: Finished difference. Result has 53 places, 48 transitions, 266 flow [2022-12-13 12:29:37,543 INFO L277 CegarLoopForPetriNet]: {PETRI_ALPHABET=29, PETRI_DIFFERENCE_MINUEND_FLOW=134, PETRI_DIFFERENCE_MINUEND_PLACES=34, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=37, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=28, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=266, PETRI_PLACES=53, PETRI_TRANSITIONS=48} [2022-12-13 12:29:37,544 INFO L295 CegarLoopForPetriNet]: 31 programPoint places, 22 predicate places. [2022-12-13 12:29:37,544 WARN L178 eatedLiptonReduction]: Counterexample is not a run of mAbstraction. Replaying acceptance of the word... [2022-12-13 12:29:37,544 INFO L89 Accepts]: Start accepts. Operand has 53 places, 48 transitions, 266 flow [2022-12-13 12:29:37,545 INFO L95 Accepts]: Finished accepts. [2022-12-13 12:29:37,546 INFO L203 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-13 12:29:37,546 INFO L174 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 53 places, 48 transitions, 266 flow [2022-12-13 12:29:37,546 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 51 places, 48 transitions, 266 flow [2022-12-13 12:29:37,568 INFO L130 PetriNetUnfolder]: 52/204 cut-off events. [2022-12-13 12:29:37,568 INFO L131 PetriNetUnfolder]: For 212/218 co-relation queries the response was YES. [2022-12-13 12:29:37,569 INFO L83 FinitePrefix]: Finished finitePrefix Result has 465 conditions, 204 events. 52/204 cut-off events. For 212/218 co-relation queries the response was YES. Maximal size of possible extension queue 24. Compared 951 event pairs, 1 based on Foata normal form. 6/197 useless extension candidates. Maximal degree in co-relation 314. Up to 33 conditions per place. [2022-12-13 12:29:37,570 INFO L222 LiptonReduction]: Starting Lipton reduction on Petri net that has 51 places, 48 transitions, 266 flow [2022-12-13 12:29:37,570 INFO L226 LiptonReduction]: Number of co-enabled transitions 344 [2022-12-13 12:29:44,846 INFO L241 LiptonReduction]: Total number of compositions: 2 [2022-12-13 12:29:44,847 INFO L158 eatedLiptonReduction]: Time needed for LBE in milliseconds: 7303 [2022-12-13 12:29:44,847 INFO L495 AbstractCegarLoop]: Abstraction has has 50 places, 47 transitions, 276 flow [2022-12-13 12:29:44,847 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 5.076923076923077) internal successors, (66), 13 states have internal predecessors, (66), 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) [2022-12-13 12:29:44,847 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-13 12:29:44,847 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] [2022-12-13 12:29:44,857 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2022-12-13 12:29:45,048 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 12:29:45,048 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-12-13 12:29:45,049 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 12:29:45,049 INFO L85 PathProgramCache]: Analyzing trace with hash 293586320, now seen corresponding path program 1 times [2022-12-13 12:29:45,049 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 12:29:45,049 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2063786152] [2022-12-13 12:29:45,049 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 12:29:45,049 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 12:29:45,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 12:29:46,240 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 12:29:46,241 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 12:29:46,241 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2063786152] [2022-12-13 12:29:46,241 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2063786152] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 12:29:46,241 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2013478532] [2022-12-13 12:29:46,241 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 12:29:46,241 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 12:29:46,241 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-13 12:29:46,257 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 12:29:46,258 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-12-13 12:29:46,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 12:29:46,358 INFO L263 TraceCheckSpWp]: Trace formula consists of 271 conjuncts, 29 conjunts are in the unsatisfiable core [2022-12-13 12:29:46,361 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 12:29:46,516 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 12:29:46,520 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 20 [2022-12-13 12:29:46,579 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 12:29:46,579 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 20 [2022-12-13 12:29:46,837 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 12:29:46,837 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 12:29:48,272 INFO L321 Elim1Store]: treesize reduction 45, result has 91.9 percent of original size [2022-12-13 12:29:48,273 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 9 select indices, 9 select index equivalence classes, 0 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 36 case distinctions, treesize of input 2210 treesize of output 2376 [2022-12-13 12:29:48,402 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-13 12:29:48,403 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 1861 treesize of output 1848 [2022-12-13 12:29:48,530 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-13 12:29:48,531 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 1711 treesize of output 1548 [2022-12-13 12:29:48,622 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-13 12:29:48,622 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 1411 treesize of output 1346 [2022-12-13 12:29:48,707 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-13 12:29:48,708 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 1309 treesize of output 1142 Received shutdown request... [2022-12-13 12:43:28,374 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2022-12-13 12:43:28,374 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2022-12-13 12:43:28,402 WARN L249 SmtUtils]: Removed 2 from assertion stack [2022-12-13 12:43:28,403 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (3 of 4 remaining) [2022-12-13 12:43:28,420 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2022-12-13 12:43:28,620 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7 [2022-12-13 12:43:28,620 WARN L619 AbstractCegarLoop]: Verification canceled: while CegarLoopForPetriNetWithRepeatedLiptonReduction was analyzing trace of length 21 with TraceHistMax 1,while TraceCheckSpWp was constructing backward predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 3 for 22ms.. [2022-12-13 12:43:28,621 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 4 remaining) [2022-12-13 12:43:28,621 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 4 remaining) [2022-12-13 12:43:28,621 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 4 remaining) [2022-12-13 12:43:28,622 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 12:43:28,624 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-12-13 12:43:28,624 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-13 12:43:28,628 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.12 12:43:28 BasicIcfg [2022-12-13 12:43:28,628 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-13 12:43:28,629 INFO L158 Benchmark]: Toolchain (without parser) took 848851.57ms. Allocated memory was 198.2MB in the beginning and 1.0GB in the end (delta: 821.0MB). Free memory was 174.5MB in the beginning and 866.3MB in the end (delta: -691.9MB). Peak memory consumption was 635.9MB. Max. memory is 8.0GB. [2022-12-13 12:43:28,629 INFO L158 Benchmark]: CDTParser took 0.09ms. Allocated memory is still 198.2MB. Free memory was 174.4MB in the beginning and 174.4MB in the end (delta: 86.0kB). There was no memory consumed. Max. memory is 8.0GB. [2022-12-13 12:43:28,629 INFO L158 Benchmark]: CACSL2BoogieTranslator took 204.10ms. Allocated memory is still 198.2MB. Free memory was 174.5MB in the beginning and 162.7MB in the end (delta: 11.8MB). Peak memory consumption was 11.5MB. Max. memory is 8.0GB. [2022-12-13 12:43:28,629 INFO L158 Benchmark]: Boogie Procedure Inliner took 48.55ms. Allocated memory is still 198.2MB. Free memory was 162.2MB in the beginning and 160.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-12-13 12:43:28,629 INFO L158 Benchmark]: Boogie Preprocessor took 44.79ms. Allocated memory is still 198.2MB. Free memory was 160.1MB in the beginning and 158.5MB in the end (delta: 1.6MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-12-13 12:43:28,630 INFO L158 Benchmark]: RCFGBuilder took 480.35ms. Allocated memory is still 198.2MB. Free memory was 158.0MB in the beginning and 135.4MB in the end (delta: 22.6MB). Peak memory consumption was 22.0MB. Max. memory is 8.0GB. [2022-12-13 12:43:28,630 INFO L158 Benchmark]: TraceAbstraction took 848068.64ms. Allocated memory was 198.2MB in the beginning and 1.0GB in the end (delta: 821.0MB). Free memory was 133.9MB in the beginning and 866.3MB in the end (delta: -732.5MB). Peak memory consumption was 595.0MB. Max. memory is 8.0GB. [2022-12-13 12:43:28,631 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.09ms. Allocated memory is still 198.2MB. Free memory was 174.4MB in the beginning and 174.4MB in the end (delta: 86.0kB). There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 204.10ms. Allocated memory is still 198.2MB. Free memory was 174.5MB in the beginning and 162.7MB in the end (delta: 11.8MB). Peak memory consumption was 11.5MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 48.55ms. Allocated memory is still 198.2MB. Free memory was 162.2MB in the beginning and 160.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 44.79ms. Allocated memory is still 198.2MB. Free memory was 160.1MB in the beginning and 158.5MB in the end (delta: 1.6MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 480.35ms. Allocated memory is still 198.2MB. Free memory was 158.0MB in the beginning and 135.4MB in the end (delta: 22.6MB). Peak memory consumption was 22.0MB. Max. memory is 8.0GB. * TraceAbstraction took 848068.64ms. Allocated memory was 198.2MB in the beginning and 1.0GB in the end (delta: 821.0MB). Free memory was 133.9MB in the beginning and 866.3MB in the end (delta: -732.5MB). Peak memory consumption was 595.0MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 10.3s, 248 PlacesBefore, 31 PlacesAfterwards, 268 TransitionsBefore, 29 TransitionsAfterwards, 2688 CoEnabledTransitionPairs, 3 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 171 TrivialYvCompositions, 46 ConcurrentYvCompositions, 18 ChoiceCompositions, 235 TotalNumberOfCompositions, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 1777, independent: 1742, independent conditional: 1742, independent unconditional: 0, dependent: 35, dependent conditional: 35, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 1777, independent: 1742, independent conditional: 0, independent unconditional: 1742, dependent: 35, dependent conditional: 0, dependent unconditional: 35, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 1777, independent: 1742, independent conditional: 0, independent unconditional: 1742, dependent: 35, dependent conditional: 0, dependent unconditional: 35, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 1777, independent: 1742, independent conditional: 0, independent unconditional: 1742, dependent: 35, dependent conditional: 0, dependent unconditional: 35, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 1583, independent: 1562, independent conditional: 0, independent unconditional: 1562, dependent: 21, dependent conditional: 0, dependent unconditional: 21, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 1583, independent: 1562, independent conditional: 0, independent unconditional: 1562, dependent: 21, dependent conditional: 0, dependent unconditional: 21, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 21, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 21, dependent conditional: 0, dependent unconditional: 21, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 37, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 37, dependent conditional: 0, dependent unconditional: 37, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 1777, independent: 180, independent conditional: 0, independent unconditional: 180, dependent: 14, dependent conditional: 0, dependent unconditional: 14, unknown: 1583, unknown conditional: 0, unknown unconditional: 1583] , Statistics on independence cache: Total cache size (in pairs): 2787, Positive cache size: 2766, Positive conditional cache size: 0, Positive unconditional cache size: 2766, Negative cache size: 21, Negative conditional cache size: 0, Negative unconditional cache size: 21, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 0, Maximal queried relation: -1 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 1.1s, 32 PlacesBefore, 31 PlacesAfterwards, 30 TransitionsBefore, 29 TransitionsAfterwards, 164 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 1 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 1 TotalNumberOfCompositions, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 160, independent: 144, independent conditional: 144, independent unconditional: 0, dependent: 16, dependent conditional: 16, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 160, independent: 144, independent conditional: 0, independent unconditional: 144, dependent: 16, dependent conditional: 0, dependent unconditional: 16, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 160, independent: 144, independent conditional: 0, independent unconditional: 144, dependent: 16, dependent conditional: 0, dependent unconditional: 16, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 160, independent: 144, independent conditional: 0, independent unconditional: 144, dependent: 16, dependent conditional: 0, dependent unconditional: 16, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 56, independent: 50, independent conditional: 0, independent unconditional: 50, dependent: 6, dependent conditional: 0, dependent unconditional: 6, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 56, independent: 50, independent conditional: 0, independent unconditional: 50, dependent: 6, dependent conditional: 0, dependent unconditional: 6, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 6, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 6, dependent conditional: 0, dependent unconditional: 6, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 7, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 7, dependent conditional: 0, dependent unconditional: 7, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 160, independent: 94, independent conditional: 0, independent unconditional: 94, dependent: 10, dependent conditional: 0, dependent unconditional: 10, unknown: 56, unknown conditional: 0, unknown unconditional: 56] , Statistics on independence cache: Total cache size (in pairs): 56, Positive cache size: 50, Positive conditional cache size: 0, Positive unconditional cache size: 50, Negative cache size: 6, Negative conditional cache size: 0, Negative unconditional cache size: 6, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 0, Maximal queried relation: -1 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 0.0s, 29 PlacesBefore, 29 PlacesAfterwards, 30 TransitionsBefore, 30 TransitionsAfterwards, 186 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 102, independent: 92, independent conditional: 92, independent unconditional: 0, dependent: 10, dependent conditional: 10, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 102, independent: 92, independent conditional: 12, independent unconditional: 80, dependent: 10, dependent conditional: 1, dependent unconditional: 9, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 102, independent: 92, independent conditional: 12, independent unconditional: 80, dependent: 10, dependent conditional: 1, dependent unconditional: 9, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 102, independent: 92, independent conditional: 12, independent unconditional: 80, dependent: 10, dependent conditional: 1, dependent unconditional: 9, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 1, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 1, dependent conditional: 1, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 1, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 1, dependent conditional: 0, dependent unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 1, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 1, dependent conditional: 1, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 1, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 1, dependent conditional: 1, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 102, independent: 92, independent conditional: 12, independent unconditional: 80, dependent: 9, dependent conditional: 0, dependent unconditional: 9, unknown: 1, unknown conditional: 1, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 57, Positive cache size: 50, Positive conditional cache size: 0, Positive unconditional cache size: 50, Negative cache size: 7, Negative conditional cache size: 1, Negative unconditional cache size: 6, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 0, Maximal queried relation: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 0.2s, 33 PlacesBefore, 32 PlacesAfterwards, 31 TransitionsBefore, 30 TransitionsAfterwards, 186 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 1 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 1 TotalNumberOfCompositions, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 192, independent: 172, independent conditional: 172, independent unconditional: 0, dependent: 20, dependent conditional: 20, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 192, independent: 172, independent conditional: 22, independent unconditional: 150, dependent: 20, dependent conditional: 2, dependent unconditional: 18, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 194, independent: 172, independent conditional: 22, independent unconditional: 150, dependent: 22, dependent conditional: 4, dependent unconditional: 18, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 194, independent: 172, independent conditional: 22, independent unconditional: 150, dependent: 22, dependent conditional: 4, dependent unconditional: 18, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 1, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 1, dependent conditional: 1, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 1, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 1, dependent conditional: 0, dependent unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 1, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 1, dependent conditional: 1, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 1, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 1, dependent conditional: 1, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 194, independent: 172, independent conditional: 22, independent unconditional: 150, dependent: 21, dependent conditional: 3, dependent unconditional: 18, unknown: 1, unknown conditional: 1, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 58, Positive cache size: 50, Positive conditional cache size: 0, Positive unconditional cache size: 50, Negative cache size: 8, Negative conditional cache size: 2, Negative unconditional cache size: 6, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 0, Maximal queried relation: 1 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 0.0s, 33 PlacesBefore, 33 PlacesAfterwards, 31 TransitionsBefore, 31 TransitionsAfterwards, 210 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 126, independent: 114, independent conditional: 114, independent unconditional: 0, dependent: 12, dependent conditional: 12, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 126, independent: 114, independent conditional: 29, independent unconditional: 85, dependent: 12, dependent conditional: 2, dependent unconditional: 10, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 126, independent: 114, independent conditional: 29, independent unconditional: 85, dependent: 12, dependent conditional: 2, dependent unconditional: 10, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 126, independent: 114, independent conditional: 29, independent unconditional: 85, dependent: 12, dependent conditional: 2, dependent unconditional: 10, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 1, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 1, dependent conditional: 1, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 1, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 1, dependent conditional: 0, dependent unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 1, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 1, dependent conditional: 1, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 2, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 2, dependent conditional: 2, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 126, independent: 114, independent conditional: 29, independent unconditional: 85, dependent: 11, dependent conditional: 1, dependent unconditional: 10, unknown: 1, unknown conditional: 1, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 59, Positive cache size: 50, Positive conditional cache size: 0, Positive unconditional cache size: 50, Negative cache size: 9, Negative conditional cache size: 3, Negative unconditional cache size: 6, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 0, Maximal queried relation: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 0.2s, 34 PlacesBefore, 33 PlacesAfterwards, 32 TransitionsBefore, 31 TransitionsAfterwards, 210 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 1 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 1 TotalNumberOfCompositions, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 264, independent: 240, independent conditional: 240, independent unconditional: 0, dependent: 24, dependent conditional: 24, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 264, independent: 240, independent conditional: 60, independent unconditional: 180, dependent: 24, dependent conditional: 4, dependent unconditional: 20, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 266, independent: 240, independent conditional: 60, independent unconditional: 180, dependent: 26, dependent conditional: 6, dependent unconditional: 20, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 266, independent: 240, independent conditional: 60, independent unconditional: 180, dependent: 26, dependent conditional: 6, dependent unconditional: 20, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 1, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 1, dependent conditional: 1, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 1, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 1, dependent conditional: 0, dependent unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 1, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 1, dependent conditional: 1, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 4, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 4, dependent conditional: 4, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 266, independent: 240, independent conditional: 60, independent unconditional: 180, dependent: 25, dependent conditional: 5, dependent unconditional: 20, unknown: 1, unknown conditional: 1, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 60, Positive cache size: 50, Positive conditional cache size: 0, Positive unconditional cache size: 50, Negative cache size: 10, Negative conditional cache size: 4, Negative unconditional cache size: 6, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 0, Maximal queried relation: 1 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 0.0s, 36 PlacesBefore, 36 PlacesAfterwards, 37 TransitionsBefore, 37 TransitionsAfterwards, 280 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 42, independent: 35, independent conditional: 35, independent unconditional: 0, dependent: 7, dependent conditional: 7, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 42, independent: 35, independent conditional: 15, independent unconditional: 20, dependent: 7, dependent conditional: 2, dependent unconditional: 5, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 43, independent: 35, independent conditional: 15, independent unconditional: 20, dependent: 8, dependent conditional: 3, dependent unconditional: 5, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 43, independent: 35, independent conditional: 15, independent unconditional: 20, dependent: 8, dependent conditional: 3, dependent unconditional: 5, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 3, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 3, dependent conditional: 3, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 3, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 3, dependent conditional: 0, dependent unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 3, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 3, dependent conditional: 3, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 5, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 5, dependent conditional: 5, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 43, independent: 35, independent conditional: 15, independent unconditional: 20, dependent: 5, dependent conditional: 0, dependent unconditional: 5, unknown: 3, unknown conditional: 3, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 63, Positive cache size: 50, Positive conditional cache size: 0, Positive unconditional cache size: 50, Negative cache size: 13, Negative conditional cache size: 7, Negative unconditional cache size: 6, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 0, Maximal queried relation: 1 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 7.3s, 51 PlacesBefore, 50 PlacesAfterwards, 48 TransitionsBefore, 47 TransitionsAfterwards, 344 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 2 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 2 TotalNumberOfCompositions, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 182, independent: 160, independent conditional: 160, independent unconditional: 0, dependent: 22, dependent conditional: 22, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 182, independent: 160, independent conditional: 90, independent unconditional: 70, dependent: 22, dependent conditional: 12, dependent unconditional: 10, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 192, independent: 160, independent conditional: 90, independent unconditional: 70, dependent: 32, dependent conditional: 22, dependent unconditional: 10, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 192, independent: 160, independent conditional: 90, independent unconditional: 70, dependent: 32, dependent conditional: 22, dependent unconditional: 10, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 4, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 4, dependent conditional: 4, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 4, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 4, dependent conditional: 0, dependent unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 4, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 4, dependent conditional: 4, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 7, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 7, dependent conditional: 7, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 192, independent: 160, independent conditional: 90, independent unconditional: 70, dependent: 28, dependent conditional: 18, dependent unconditional: 10, unknown: 4, unknown conditional: 4, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 67, Positive cache size: 50, Positive conditional cache size: 0, Positive unconditional cache size: 50, Negative cache size: 17, Negative conditional cache size: 11, Negative unconditional cache size: 6, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 0, Maximal queried relation: 2 - TimeoutResultAtElement [Line: 102]: Timeout (TraceAbstraction) Unable to prove that call to reach_error is unreachable Cancelled while CegarLoopForPetriNetWithRepeatedLiptonReduction was analyzing trace of length 21 with TraceHistMax 1,while TraceCheckSpWp was constructing backward predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 3 for 22ms.. - TimeoutResultAtElement [Line: 92]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while CegarLoopForPetriNetWithRepeatedLiptonReduction was analyzing trace of length 21 with TraceHistMax 1,while TraceCheckSpWp was constructing backward predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 3 for 22ms.. - TimeoutResultAtElement [Line: 93]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while CegarLoopForPetriNetWithRepeatedLiptonReduction was analyzing trace of length 21 with TraceHistMax 1,while TraceCheckSpWp was constructing backward predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 3 for 22ms.. - TimeoutResultAtElement [Line: 94]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while CegarLoopForPetriNetWithRepeatedLiptonReduction was analyzing trace of length 21 with TraceHistMax 1,while TraceCheckSpWp was constructing backward predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 3 for 22ms.. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 7 procedures, 297 locations, 4 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 848.0s, OverallIterations: 8, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 10.6s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 603 SdHoareTripleChecker+Valid, 0.8s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 603 mSDsluCounter, 0 SdHoareTripleChecker+Invalid, 0.7s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 22 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1352 IncrementalHoareTripleChecker+Invalid, 1374 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 22 mSolverCounterUnsat, 0 mSDtfsCounter, 1352 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 90 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 72 ImplicationChecksByTransitivity, 0.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=276occurred in iteration=7, InterpolantAutomatonStates: 45, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 2.2s InterpolantComputationTime, 164 NumberOfCodeBlocks, 164 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 177 ConstructedInterpolants, 0 QuantifiedInterpolants, 1955 SizeOfPredicates, 7 NumberOfNonLiveVariables, 291 ConjunctsInSsa, 12 ConjunctsInUnsatCore, 9 InterpolantComputations, 6 PerfectInterpolantSequences, 0/3 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown