/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-RepeatedSemanticLbeWithPredicates.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread-deagle/arithmetic_prog_ok.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.repeated-lipton-8d0d62b [2022-12-06 05:47:38,969 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-06 05:47:38,970 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-06 05:47:38,997 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-06 05:47:38,998 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-06 05:47:39,000 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-06 05:47:39,003 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-06 05:47:39,005 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-06 05:47:39,008 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-06 05:47:39,012 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-06 05:47:39,012 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-06 05:47:39,014 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-06 05:47:39,014 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-06 05:47:39,015 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-06 05:47:39,016 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-06 05:47:39,018 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-06 05:47:39,019 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-06 05:47:39,019 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-06 05:47:39,021 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-06 05:47:39,024 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-06 05:47:39,025 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-06 05:47:39,026 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-06 05:47:39,027 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-06 05:47:39,027 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-06 05:47:39,032 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-06 05:47:39,032 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-06 05:47:39,032 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-06 05:47:39,033 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-06 05:47:39,034 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-06 05:47:39,034 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-06 05:47:39,034 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-06 05:47:39,039 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-06 05:47:39,040 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-06 05:47:39,040 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-06 05:47:39,041 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-06 05:47:39,041 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-06 05:47:39,041 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-06 05:47:39,042 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-06 05:47:39,042 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-06 05:47:39,042 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-06 05:47:39,043 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-06 05:47:39,043 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-RepeatedSemanticLbeWithPredicates.epf [2022-12-06 05:47:39,066 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-06 05:47:39,066 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-06 05:47:39,067 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-06 05:47:39,068 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-06 05:47:39,068 INFO L138 SettingsManager]: * Use SBE=true [2022-12-06 05:47:39,068 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-06 05:47:39,068 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-06 05:47:39,069 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-06 05:47:39,069 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-06 05:47:39,069 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-06 05:47:39,069 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-06 05:47:39,069 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-06 05:47:39,069 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-06 05:47:39,070 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-06 05:47:39,070 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-06 05:47:39,070 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-06 05:47:39,070 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-06 05:47:39,070 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-06 05:47:39,070 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-06 05:47:39,070 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-12-06 05:47:39,070 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-06 05:47:39,070 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-06 05:47:39,070 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-06 05:47:39,071 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-06 05:47:39,071 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-06 05:47:39,071 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-06 05:47:39,071 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-06 05:47:39,071 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=REPEATED_LIPTON_PN [2022-12-06 05:47:39,071 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-12-06 05:47:39,321 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-06 05:47:39,334 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-06 05:47:39,336 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-06 05:47:39,336 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-06 05:47:39,337 INFO L275 PluginConnector]: CDTParser initialized [2022-12-06 05:47:39,337 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-deagle/arithmetic_prog_ok.i [2022-12-06 05:47:40,223 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-06 05:47:40,422 INFO L351 CDTParser]: Found 1 translation units. [2022-12-06 05:47:40,422 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-deagle/arithmetic_prog_ok.i [2022-12-06 05:47:40,444 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2c7f4e1e0/b398404f92d5431bac75a0cf800f88dd/FLAG100f06f0f [2022-12-06 05:47:40,459 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2c7f4e1e0/b398404f92d5431bac75a0cf800f88dd [2022-12-06 05:47:40,461 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-06 05:47:40,462 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-12-06 05:47:40,464 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-06 05:47:40,464 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-06 05:47:40,466 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-06 05:47:40,466 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 05:47:40" (1/1) ... [2022-12-06 05:47:40,467 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5725ff10 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:47:40, skipping insertion in model container [2022-12-06 05:47:40,467 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 05:47:40" (1/1) ... [2022-12-06 05:47:40,472 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-06 05:47:40,519 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-06 05:47:40,841 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-deagle/arithmetic_prog_ok.i[39757,39770] [2022-12-06 05:47:40,844 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-06 05:47:40,860 INFO L203 MainTranslator]: Completed pre-run [2022-12-06 05:47:40,902 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-deagle/arithmetic_prog_ok.i[39757,39770] [2022-12-06 05:47:40,903 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-06 05:47:40,943 INFO L208 MainTranslator]: Completed translation [2022-12-06 05:47:40,943 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:47:40 WrapperNode [2022-12-06 05:47:40,943 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-06 05:47:40,944 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-06 05:47:40,945 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-06 05:47:40,945 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-06 05:47:40,950 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:47:40" (1/1) ... [2022-12-06 05:47:40,978 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:47:40" (1/1) ... [2022-12-06 05:47:40,998 INFO L138 Inliner]: procedures = 243, calls = 50, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 81 [2022-12-06 05:47:40,998 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-06 05:47:40,999 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-06 05:47:40,999 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-06 05:47:40,999 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-06 05:47:41,005 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:47:40" (1/1) ... [2022-12-06 05:47:41,006 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:47:40" (1/1) ... [2022-12-06 05:47:41,017 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:47:40" (1/1) ... [2022-12-06 05:47:41,017 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:47:40" (1/1) ... [2022-12-06 05:47:41,022 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:47:40" (1/1) ... [2022-12-06 05:47:41,025 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:47:40" (1/1) ... [2022-12-06 05:47:41,026 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:47:40" (1/1) ... [2022-12-06 05:47:41,027 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:47:40" (1/1) ... [2022-12-06 05:47:41,028 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-06 05:47:41,029 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-06 05:47:41,029 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-06 05:47:41,029 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-06 05:47:41,030 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:47:40" (1/1) ... [2022-12-06 05:47:41,035 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-06 05:47:41,044 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-06 05:47:41,057 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) [2022-12-06 05:47:41,077 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 [2022-12-06 05:47:41,098 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-06 05:47:41,099 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-06 05:47:41,099 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-12-06 05:47:41,100 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-06 05:47:41,100 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-12-06 05:47:41,100 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-12-06 05:47:41,100 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-12-06 05:47:41,100 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-12-06 05:47:41,100 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-06 05:47:41,100 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-12-06 05:47:41,100 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-06 05:47:41,100 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-06 05:47:41,100 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-06 05:47:41,100 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-06 05:47:41,101 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2022-12-06 05:47:41,223 INFO L236 CfgBuilder]: Building ICFG [2022-12-06 05:47:41,225 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-06 05:47:41,414 INFO L277 CfgBuilder]: Performing block encoding [2022-12-06 05:47:41,421 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-06 05:47:41,421 INFO L302 CfgBuilder]: Removed 4 assume(true) statements. [2022-12-06 05:47:41,422 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 05:47:41 BoogieIcfgContainer [2022-12-06 05:47:41,422 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-06 05:47:41,424 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-06 05:47:41,424 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-06 05:47:41,439 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-06 05:47:41,439 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.12 05:47:40" (1/3) ... [2022-12-06 05:47:41,440 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7beb7f50 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.12 05:47:41, skipping insertion in model container [2022-12-06 05:47:41,440 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:47:40" (2/3) ... [2022-12-06 05:47:41,440 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7beb7f50 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.12 05:47:41, skipping insertion in model container [2022-12-06 05:47:41,440 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 05:47:41" (3/3) ... [2022-12-06 05:47:41,441 INFO L112 eAbstractionObserver]: Analyzing ICFG arithmetic_prog_ok.i [2022-12-06 05:47:41,453 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-06 05:47:41,453 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-12-06 05:47:41,453 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-12-06 05:47:41,500 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2022-12-06 05:47:41,530 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 128 places, 131 transitions, 278 flow [2022-12-06 05:47:41,603 INFO L130 PetriNetUnfolder]: 10/129 cut-off events. [2022-12-06 05:47:41,603 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-12-06 05:47:41,608 INFO L83 FinitePrefix]: Finished finitePrefix Result has 138 conditions, 129 events. 10/129 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 140 event pairs, 0 based on Foata normal form. 0/118 useless extension candidates. Maximal degree in co-relation 82. Up to 3 conditions per place. [2022-12-06 05:47:41,609 INFO L82 GeneralOperation]: Start removeDead. Operand has 128 places, 131 transitions, 278 flow [2022-12-06 05:47:41,613 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 117 places, 118 transitions, 248 flow [2022-12-06 05:47:41,614 INFO L195 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-06 05:47:41,637 INFO L167 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 117 places, 118 transitions, 248 flow [2022-12-06 05:47:41,645 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 117 places, 118 transitions, 248 flow [2022-12-06 05:47:41,683 INFO L130 PetriNetUnfolder]: 8/118 cut-off events. [2022-12-06 05:47:41,683 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-12-06 05:47:41,684 INFO L83 FinitePrefix]: Finished finitePrefix Result has 127 conditions, 118 events. 8/118 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 129 event pairs, 0 based on Foata normal form. 0/110 useless extension candidates. Maximal degree in co-relation 82. Up to 2 conditions per place. [2022-12-06 05:47:41,688 INFO L184 LiptonReduction]: Starting Lipton reduction on Petri net that has 117 places, 118 transitions, 248 flow [2022-12-06 05:47:41,688 INFO L188 LiptonReduction]: Number of co-enabled transitions 1922 [2022-12-06 05:47:41,849 INFO L167 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2022-12-06 05:47:41,851 INFO L172 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2022-12-06 05:47:41,853 INFO L167 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2022-12-06 05:47:41,854 INFO L172 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2022-12-06 05:47:44,086 INFO L167 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2022-12-06 05:47:44,086 INFO L172 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2022-12-06 05:47:44,089 INFO L167 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2022-12-06 05:47:44,089 INFO L172 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2022-12-06 05:47:44,280 INFO L167 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2022-12-06 05:47:44,282 INFO L172 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2022-12-06 05:47:44,283 INFO L167 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2022-12-06 05:47:44,286 INFO L172 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2022-12-06 05:47:44,722 INFO L167 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2022-12-06 05:47:44,722 INFO L172 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2022-12-06 05:47:44,730 INFO L167 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2022-12-06 05:47:44,731 INFO L172 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2022-12-06 05:47:45,012 INFO L167 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2022-12-06 05:47:45,013 INFO L172 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2022-12-06 05:47:45,017 INFO L167 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2022-12-06 05:47:45,018 INFO L172 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2022-12-06 05:47:45,414 INFO L167 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2022-12-06 05:47:45,415 INFO L172 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2022-12-06 05:47:45,419 INFO L167 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2022-12-06 05:47:45,419 INFO L172 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2022-12-06 05:47:47,319 INFO L167 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2022-12-06 05:47:47,320 INFO L172 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2022-12-06 05:47:47,323 INFO L167 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2022-12-06 05:47:47,324 INFO L172 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2022-12-06 05:47:48,329 INFO L203 LiptonReduction]: Total number of compositions: 93 [2022-12-06 05:47:48,339 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-06 05:47:48,343 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;@1f694b50, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, Conditionality=CONDITIONAL_DISJUNCTIVE, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-06 05:47:48,343 INFO L358 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2022-12-06 05:47:48,357 INFO L130 PetriNetUnfolder]: 6/30 cut-off events. [2022-12-06 05:47:48,357 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-12-06 05:47:48,358 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 05:47:48,358 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 05:47:48,358 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-06 05:47:48,362 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 05:47:48,362 INFO L85 PathProgramCache]: Analyzing trace with hash 228985984, now seen corresponding path program 1 times [2022-12-06 05:47:48,368 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 05:47:48,369 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1808306603] [2022-12-06 05:47:48,382 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 05:47:48,383 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 05:47:48,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 05:47:48,629 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 05:47:48,630 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 05:47:48,630 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1808306603] [2022-12-06 05:47:48,630 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1808306603] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 05:47:48,630 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 05:47:48,631 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-06 05:47:48,633 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [664103212] [2022-12-06 05:47:48,634 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 05:47:48,639 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-06 05:47:48,640 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 05:47:48,657 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-06 05:47:48,658 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-06 05:47:48,659 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 31 [2022-12-06 05:47:48,660 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 32 places, 31 transitions, 74 flow. Second operand has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 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) [2022-12-06 05:47:48,660 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 05:47:48,660 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 31 [2022-12-06 05:47:48,661 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 05:47:48,765 INFO L130 PetriNetUnfolder]: 189/410 cut-off events. [2022-12-06 05:47:48,765 INFO L131 PetriNetUnfolder]: For 13/13 co-relation queries the response was YES. [2022-12-06 05:47:48,768 INFO L83 FinitePrefix]: Finished finitePrefix Result has 736 conditions, 410 events. 189/410 cut-off events. For 13/13 co-relation queries the response was YES. Maximal size of possible extension queue 27. Compared 1851 event pairs, 72 based on Foata normal form. 24/368 useless extension candidates. Maximal degree in co-relation 672. Up to 194 conditions per place. [2022-12-06 05:47:48,772 INFO L137 encePairwiseOnDemand]: 26/31 looper letters, 32 selfloop transitions, 2 changer transitions 0/42 dead transitions. [2022-12-06 05:47:48,772 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 34 places, 42 transitions, 167 flow [2022-12-06 05:47:48,773 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-06 05:47:48,775 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-06 05:47:48,779 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 63 transitions. [2022-12-06 05:47:48,781 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.6774193548387096 [2022-12-06 05:47:48,782 INFO L175 Difference]: Start difference. First operand has 32 places, 31 transitions, 74 flow. Second operand 3 states and 63 transitions. [2022-12-06 05:47:48,783 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 34 places, 42 transitions, 167 flow [2022-12-06 05:47:48,786 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 30 places, 42 transitions, 157 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-12-06 05:47:48,787 INFO L231 Difference]: Finished difference. Result has 31 places, 30 transitions, 74 flow [2022-12-06 05:47:48,789 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=31, PETRI_DIFFERENCE_MINUEND_FLOW=62, PETRI_DIFFERENCE_MINUEND_PLACES=28, 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=3, PETRI_FLOW=74, PETRI_PLACES=31, PETRI_TRANSITIONS=30} [2022-12-06 05:47:48,792 INFO L294 CegarLoopForPetriNet]: 32 programPoint places, -1 predicate places. [2022-12-06 05:47:48,793 WARN L163 eatedLiptonReduction]: Counterexample is not a run of mAbstraction. Replaying acceptance of the word... [2022-12-06 05:47:48,793 INFO L89 Accepts]: Start accepts. Operand has 31 places, 30 transitions, 74 flow [2022-12-06 05:47:48,797 INFO L95 Accepts]: Finished accepts. [2022-12-06 05:47:48,798 INFO L195 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-06 05:47:48,800 INFO L167 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 31 places, 30 transitions, 74 flow [2022-12-06 05:47:48,810 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 31 places, 30 transitions, 74 flow [2022-12-06 05:47:48,815 INFO L130 PetriNetUnfolder]: 5/37 cut-off events. [2022-12-06 05:47:48,815 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-12-06 05:47:48,815 INFO L83 FinitePrefix]: Finished finitePrefix Result has 47 conditions, 37 events. 5/37 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 57 event pairs, 0 based on Foata normal form. 0/33 useless extension candidates. Maximal degree in co-relation 33. Up to 4 conditions per place. [2022-12-06 05:47:48,815 INFO L184 LiptonReduction]: Starting Lipton reduction on Petri net that has 31 places, 30 transitions, 74 flow [2022-12-06 05:47:48,816 INFO L188 LiptonReduction]: Number of co-enabled transitions 346 [2022-12-06 05:47:48,839 INFO L203 LiptonReduction]: Total number of compositions: 0 [2022-12-06 05:47:48,844 INFO L143 eatedLiptonReduction]: Time needed for LBE in milliseconds: 52 [2022-12-06 05:47:48,844 INFO L495 AbstractCegarLoop]: Abstraction has has 31 places, 30 transitions, 74 flow [2022-12-06 05:47:48,844 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 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) [2022-12-06 05:47:48,844 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 05:47:48,844 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 05:47:48,844 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-06 05:47:48,844 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-06 05:47:48,846 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 05:47:48,846 INFO L85 PathProgramCache]: Analyzing trace with hash 1986141756, now seen corresponding path program 1 times [2022-12-06 05:47:48,846 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 05:47:48,846 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [561316236] [2022-12-06 05:47:48,846 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 05:47:48,846 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 05:47:48,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 05:47:48,941 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 05:47:48,941 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 05:47:48,941 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [561316236] [2022-12-06 05:47:48,941 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [561316236] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 05:47:48,941 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 05:47:48,941 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-06 05:47:48,942 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1798850091] [2022-12-06 05:47:48,942 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 05:47:48,942 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-06 05:47:48,943 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 05:47:48,943 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-06 05:47:48,943 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-06 05:47:48,943 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 29 [2022-12-06 05:47:48,943 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 31 places, 30 transitions, 74 flow. Second operand has 3 states, 3 states have (on average 13.333333333333334) internal successors, (40), 3 states have internal predecessors, (40), 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) [2022-12-06 05:47:48,943 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 05:47:48,944 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 29 [2022-12-06 05:47:48,944 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 05:47:49,023 INFO L130 PetriNetUnfolder]: 297/632 cut-off events. [2022-12-06 05:47:49,023 INFO L131 PetriNetUnfolder]: For 97/97 co-relation queries the response was YES. [2022-12-06 05:47:49,024 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1195 conditions, 632 events. 297/632 cut-off events. For 97/97 co-relation queries the response was YES. Maximal size of possible extension queue 40. Compared 3028 event pairs, 117 based on Foata normal form. 0/585 useless extension candidates. Maximal degree in co-relation 384. Up to 299 conditions per place. [2022-12-06 05:47:49,028 INFO L137 encePairwiseOnDemand]: 26/29 looper letters, 34 selfloop transitions, 2 changer transitions 0/44 dead transitions. [2022-12-06 05:47:49,028 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 33 places, 44 transitions, 185 flow [2022-12-06 05:47:49,028 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-06 05:47:49,029 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-06 05:47:49,029 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 59 transitions. [2022-12-06 05:47:49,031 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.6781609195402298 [2022-12-06 05:47:49,031 INFO L175 Difference]: Start difference. First operand has 31 places, 30 transitions, 74 flow. Second operand 3 states and 59 transitions. [2022-12-06 05:47:49,031 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 33 places, 44 transitions, 185 flow [2022-12-06 05:47:49,031 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 32 places, 44 transitions, 181 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-12-06 05:47:49,033 INFO L231 Difference]: Finished difference. Result has 33 places, 31 transitions, 84 flow [2022-12-06 05:47:49,033 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=29, PETRI_DIFFERENCE_MINUEND_FLOW=72, PETRI_DIFFERENCE_MINUEND_PLACES=30, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=30, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=28, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=84, PETRI_PLACES=33, PETRI_TRANSITIONS=31} [2022-12-06 05:47:49,033 INFO L294 CegarLoopForPetriNet]: 32 programPoint places, 1 predicate places. [2022-12-06 05:47:49,033 WARN L163 eatedLiptonReduction]: Counterexample is not a run of mAbstraction. Replaying acceptance of the word... [2022-12-06 05:47:49,034 INFO L89 Accepts]: Start accepts. Operand has 33 places, 31 transitions, 84 flow [2022-12-06 05:47:49,035 INFO L95 Accepts]: Finished accepts. [2022-12-06 05:47:49,035 INFO L195 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-06 05:47:49,035 INFO L167 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 33 places, 31 transitions, 84 flow [2022-12-06 05:47:49,037 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 33 places, 31 transitions, 84 flow [2022-12-06 05:47:49,043 INFO L130 PetriNetUnfolder]: 6/45 cut-off events. [2022-12-06 05:47:49,044 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-12-06 05:47:49,044 INFO L83 FinitePrefix]: Finished finitePrefix Result has 60 conditions, 45 events. 6/45 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 90 event pairs, 0 based on Foata normal form. 0/41 useless extension candidates. Maximal degree in co-relation 45. Up to 4 conditions per place. [2022-12-06 05:47:49,044 INFO L184 LiptonReduction]: Starting Lipton reduction on Petri net that has 33 places, 31 transitions, 84 flow [2022-12-06 05:47:49,045 INFO L188 LiptonReduction]: Number of co-enabled transitions 374 [2022-12-06 05:47:49,048 INFO L203 LiptonReduction]: Total number of compositions: 0 [2022-12-06 05:47:49,052 INFO L143 eatedLiptonReduction]: Time needed for LBE in milliseconds: 19 [2022-12-06 05:47:49,052 INFO L495 AbstractCegarLoop]: Abstraction has has 33 places, 31 transitions, 84 flow [2022-12-06 05:47:49,053 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.333333333333334) internal successors, (40), 3 states have internal predecessors, (40), 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) [2022-12-06 05:47:49,053 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 05:47:49,053 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 05:47:49,053 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-06 05:47:49,053 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-06 05:47:49,054 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 05:47:49,054 INFO L85 PathProgramCache]: Analyzing trace with hash 311444521, now seen corresponding path program 1 times [2022-12-06 05:47:49,054 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 05:47:49,054 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1014034098] [2022-12-06 05:47:49,054 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 05:47:49,054 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 05:47:49,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 05:47:49,212 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 05:47:49,213 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 05:47:49,213 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1014034098] [2022-12-06 05:47:49,213 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1014034098] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 05:47:49,213 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 05:47:49,213 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-06 05:47:49,213 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [618070407] [2022-12-06 05:47:49,213 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 05:47:49,214 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-06 05:47:49,214 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 05:47:49,214 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-06 05:47:49,214 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-06 05:47:49,214 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 6 out of 29 [2022-12-06 05:47:49,214 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 33 places, 31 transitions, 84 flow. Second operand has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 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) [2022-12-06 05:47:49,215 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 05:47:49,215 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 6 of 29 [2022-12-06 05:47:49,215 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 05:47:49,288 INFO L130 PetriNetUnfolder]: 285/664 cut-off events. [2022-12-06 05:47:49,289 INFO L131 PetriNetUnfolder]: For 147/147 co-relation queries the response was YES. [2022-12-06 05:47:49,289 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1334 conditions, 664 events. 285/664 cut-off events. For 147/147 co-relation queries the response was YES. Maximal size of possible extension queue 35. Compared 3321 event pairs, 105 based on Foata normal form. 64/700 useless extension candidates. Maximal degree in co-relation 397. Up to 264 conditions per place. [2022-12-06 05:47:49,291 INFO L137 encePairwiseOnDemand]: 21/29 looper letters, 24 selfloop transitions, 10 changer transitions 0/40 dead transitions. [2022-12-06 05:47:49,292 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 35 places, 40 transitions, 181 flow [2022-12-06 05:47:49,292 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-06 05:47:49,292 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-06 05:47:49,293 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 54 transitions. [2022-12-06 05:47:49,293 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.6206896551724138 [2022-12-06 05:47:49,293 INFO L175 Difference]: Start difference. First operand has 33 places, 31 transitions, 84 flow. Second operand 3 states and 54 transitions. [2022-12-06 05:47:49,293 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 35 places, 40 transitions, 181 flow [2022-12-06 05:47:49,295 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 34 places, 40 transitions, 178 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-12-06 05:47:49,296 INFO L231 Difference]: Finished difference. Result has 34 places, 31 transitions, 102 flow [2022-12-06 05:47:49,296 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=29, PETRI_DIFFERENCE_MINUEND_FLOW=82, PETRI_DIFFERENCE_MINUEND_PLACES=32, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=31, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=21, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=102, PETRI_PLACES=34, PETRI_TRANSITIONS=31} [2022-12-06 05:47:49,297 INFO L294 CegarLoopForPetriNet]: 32 programPoint places, 2 predicate places. [2022-12-06 05:47:49,297 WARN L163 eatedLiptonReduction]: Counterexample is not a run of mAbstraction. Replaying acceptance of the word... [2022-12-06 05:47:49,297 INFO L89 Accepts]: Start accepts. Operand has 34 places, 31 transitions, 102 flow [2022-12-06 05:47:49,298 INFO L95 Accepts]: Finished accepts. [2022-12-06 05:47:49,299 INFO L195 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-06 05:47:49,299 INFO L167 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 34 places, 31 transitions, 102 flow [2022-12-06 05:47:49,300 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 34 places, 31 transitions, 102 flow [2022-12-06 05:47:49,308 INFO L130 PetriNetUnfolder]: 33/147 cut-off events. [2022-12-06 05:47:49,308 INFO L131 PetriNetUnfolder]: For 16/16 co-relation queries the response was YES. [2022-12-06 05:47:49,309 INFO L83 FinitePrefix]: Finished finitePrefix Result has 239 conditions, 147 events. 33/147 cut-off events. For 16/16 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 566 event pairs, 9 based on Foata normal form. 0/131 useless extension candidates. Maximal degree in co-relation 220. Up to 33 conditions per place. [2022-12-06 05:47:49,309 INFO L184 LiptonReduction]: Starting Lipton reduction on Petri net that has 34 places, 31 transitions, 102 flow [2022-12-06 05:47:49,309 INFO L188 LiptonReduction]: Number of co-enabled transitions 212 [2022-12-06 05:47:49,436 INFO L203 LiptonReduction]: Total number of compositions: 6 [2022-12-06 05:47:49,438 INFO L143 eatedLiptonReduction]: Time needed for LBE in milliseconds: 141 [2022-12-06 05:47:49,438 INFO L495 AbstractCegarLoop]: Abstraction has has 30 places, 27 transitions, 94 flow [2022-12-06 05:47:49,439 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 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) [2022-12-06 05:47:49,441 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 05:47:49,442 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 05:47:49,442 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-06 05:47:49,444 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-06 05:47:49,445 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 05:47:49,445 INFO L85 PathProgramCache]: Analyzing trace with hash 1243613186, now seen corresponding path program 1 times [2022-12-06 05:47:49,445 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 05:47:49,445 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [843370636] [2022-12-06 05:47:49,445 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 05:47:49,445 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 05:47:49,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 05:47:49,511 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 05:47:49,511 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 05:47:49,511 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [843370636] [2022-12-06 05:47:49,511 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [843370636] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-06 05:47:49,511 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [287770129] [2022-12-06 05:47:49,512 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 05:47:49,512 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-06 05:47:49,512 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-06 05:47:49,514 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) [2022-12-06 05:47:49,523 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-12-06 05:47:49,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 05:47:49,613 INFO L263 TraceCheckSpWp]: Trace formula consists of 255 conjuncts, 3 conjunts are in the unsatisfiable core [2022-12-06 05:47:49,616 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-06 05:47:49,660 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 05:47:49,660 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-06 05:47:49,677 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 05:47:49,677 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [287770129] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-06 05:47:49,677 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-06 05:47:49,678 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 7 [2022-12-06 05:47:49,678 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [700914000] [2022-12-06 05:47:49,678 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-06 05:47:49,678 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-06 05:47:49,678 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 05:47:49,679 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-06 05:47:49,679 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2022-12-06 05:47:49,679 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 27 [2022-12-06 05:47:49,679 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 30 places, 27 transitions, 94 flow. Second operand has 7 states, 7 states have (on average 8.285714285714286) internal successors, (58), 7 states have internal predecessors, (58), 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) [2022-12-06 05:47:49,679 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 05:47:49,679 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 27 [2022-12-06 05:47:49,679 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 05:47:49,870 INFO L130 PetriNetUnfolder]: 433/890 cut-off events. [2022-12-06 05:47:49,870 INFO L131 PetriNetUnfolder]: For 273/281 co-relation queries the response was YES. [2022-12-06 05:47:49,871 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2239 conditions, 890 events. 433/890 cut-off events. For 273/281 co-relation queries the response was YES. Maximal size of possible extension queue 42. Compared 4318 event pairs, 65 based on Foata normal form. 70/956 useless extension candidates. Maximal degree in co-relation 726. Up to 222 conditions per place. [2022-12-06 05:47:49,874 INFO L137 encePairwiseOnDemand]: 22/27 looper letters, 68 selfloop transitions, 6 changer transitions 1/79 dead transitions. [2022-12-06 05:47:49,874 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 35 places, 79 transitions, 438 flow [2022-12-06 05:47:49,874 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-06 05:47:49,874 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-12-06 05:47:49,876 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 102 transitions. [2022-12-06 05:47:49,877 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.6296296296296297 [2022-12-06 05:47:49,877 INFO L175 Difference]: Start difference. First operand has 30 places, 27 transitions, 94 flow. Second operand 6 states and 102 transitions. [2022-12-06 05:47:49,877 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 35 places, 79 transitions, 438 flow [2022-12-06 05:47:49,882 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 34 places, 79 transitions, 403 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-12-06 05:47:49,882 INFO L231 Difference]: Finished difference. Result has 38 places, 30 transitions, 127 flow [2022-12-06 05:47:49,883 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=27, PETRI_DIFFERENCE_MINUEND_FLOW=84, PETRI_DIFFERENCE_MINUEND_PLACES=29, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=27, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=23, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=127, PETRI_PLACES=38, PETRI_TRANSITIONS=30} [2022-12-06 05:47:49,884 INFO L294 CegarLoopForPetriNet]: 32 programPoint places, 6 predicate places. [2022-12-06 05:47:49,884 WARN L163 eatedLiptonReduction]: Counterexample is not a run of mAbstraction. Replaying acceptance of the word... [2022-12-06 05:47:49,884 INFO L89 Accepts]: Start accepts. Operand has 38 places, 30 transitions, 127 flow [2022-12-06 05:47:49,885 INFO L95 Accepts]: Finished accepts. [2022-12-06 05:47:49,885 INFO L195 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-06 05:47:49,885 INFO L167 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 38 places, 30 transitions, 127 flow [2022-12-06 05:47:49,886 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 38 places, 30 transitions, 127 flow [2022-12-06 05:47:49,898 INFO L130 PetriNetUnfolder]: 71/227 cut-off events. [2022-12-06 05:47:49,898 INFO L131 PetriNetUnfolder]: For 66/70 co-relation queries the response was YES. [2022-12-06 05:47:49,899 INFO L83 FinitePrefix]: Finished finitePrefix Result has 408 conditions, 227 events. 71/227 cut-off events. For 66/70 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 985 event pairs, 24 based on Foata normal form. 3/196 useless extension candidates. Maximal degree in co-relation 385. Up to 69 conditions per place. [2022-12-06 05:47:49,900 INFO L184 LiptonReduction]: Starting Lipton reduction on Petri net that has 38 places, 30 transitions, 127 flow [2022-12-06 05:47:49,900 INFO L188 LiptonReduction]: Number of co-enabled transitions 202 [2022-12-06 05:47:49,902 ERROR L112 fgCompositionFactory]: Composing non-subsequent actions: [439] L878-2-->L880-2: Formula: (let ((.cse0 (select |v_#pthreadsMutex_174| |v_~#m~0.base_103|))) (and (= (store |v_#pthreadsMutex_174| |v_~#m~0.base_103| (store .cse0 |v_~#m~0.offset_103| 1)) |v_#pthreadsMutex_173|) (= (select .cse0 |v_~#m~0.offset_103|) 0) (< v_thread1Thread1of1ForFork0_~i~0_63 4))) InVars {#pthreadsMutex=|v_#pthreadsMutex_174|, ~#m~0.base=|v_~#m~0.base_103|, ~#m~0.offset=|v_~#m~0.offset_103|, thread1Thread1of1ForFork0_~i~0=v_thread1Thread1of1ForFork0_~i~0_63} OutVars{thread1Thread1of1ForFork0_#t~nondet4=|v_thread1Thread1of1ForFork0_#t~nondet4_19|, #pthreadsMutex=|v_#pthreadsMutex_173|, ~#m~0.base=|v_~#m~0.base_103|, ~#m~0.offset=|v_~#m~0.offset_103|, thread1Thread1of1ForFork0_~i~0=v_thread1Thread1of1ForFork0_~i~0_63} AuxVars[] AssignedVars[thread1Thread1of1ForFork0_#t~nondet4, #pthreadsMutex] and [402] L883-->L878-2: Formula: (and (= (+ v_thread1Thread1of1ForFork0_~i~0_30 1) v_thread1Thread1of1ForFork0_~i~0_29) (= |v_#pthreadsMutex_83| (store |v_#pthreadsMutex_84| |v_~#m~0.base_55| (store (select |v_#pthreadsMutex_84| |v_~#m~0.base_55|) |v_~#m~0.offset_55| 0)))) InVars {#pthreadsMutex=|v_#pthreadsMutex_84|, ~#m~0.base=|v_~#m~0.base_55|, ~#m~0.offset=|v_~#m~0.offset_55|, thread1Thread1of1ForFork0_~i~0=v_thread1Thread1of1ForFork0_~i~0_30} OutVars{#pthreadsMutex=|v_#pthreadsMutex_83|, ~#m~0.base=|v_~#m~0.base_55|, ~#m~0.offset=|v_~#m~0.offset_55|, thread1Thread1of1ForFork0_~i~0=v_thread1Thread1of1ForFork0_~i~0_29, thread1Thread1of1ForFork0_#t~post7=|v_thread1Thread1of1ForFork0_#t~post7_17|} AuxVars[] AssignedVars[#pthreadsMutex, thread1Thread1of1ForFork0_~i~0, thread1Thread1of1ForFork0_#t~post7] [2022-12-06 05:47:50,010 INFO L203 LiptonReduction]: Total number of compositions: 5 [2022-12-06 05:47:50,010 INFO L143 eatedLiptonReduction]: Time needed for LBE in milliseconds: 126 [2022-12-06 05:47:50,010 INFO L495 AbstractCegarLoop]: Abstraction has has 35 places, 27 transitions, 126 flow [2022-12-06 05:47:50,011 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.285714285714286) internal successors, (58), 7 states have internal predecessors, (58), 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) [2022-12-06 05:47:50,011 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 05:47:50,011 INFO L213 CegarLoopForPetriNet]: trace histogram [4, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 05:47:50,033 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-12-06 05:47:50,211 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-06 05:47:50,212 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-06 05:47:50,212 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 05:47:50,212 INFO L85 PathProgramCache]: Analyzing trace with hash 1858401040, now seen corresponding path program 1 times [2022-12-06 05:47:50,212 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 05:47:50,212 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [874152062] [2022-12-06 05:47:50,213 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 05:47:50,213 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 05:47:50,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 05:47:50,266 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 10 proven. 2 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-12-06 05:47:50,266 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 05:47:50,266 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [874152062] [2022-12-06 05:47:50,266 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [874152062] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-06 05:47:50,266 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2063744478] [2022-12-06 05:47:50,267 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 05:47:50,267 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-06 05:47:50,267 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-06 05:47:50,268 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) [2022-12-06 05:47:50,270 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-12-06 05:47:50,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 05:47:50,359 INFO L263 TraceCheckSpWp]: Trace formula consists of 303 conjuncts, 3 conjunts are in the unsatisfiable core [2022-12-06 05:47:50,360 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-06 05:47:50,370 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-12-06 05:47:50,371 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-06 05:47:50,371 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2063744478] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 05:47:50,371 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-06 05:47:50,371 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 4 [2022-12-06 05:47:50,371 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1800451138] [2022-12-06 05:47:50,371 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 05:47:50,371 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-06 05:47:50,372 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 05:47:50,372 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-06 05:47:50,387 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-12-06 05:47:50,387 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 0 out of 26 [2022-12-06 05:47:50,387 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 35 places, 27 transitions, 126 flow. Second operand has 4 states, 4 states have (on average 5.5) internal successors, (22), 3 states have internal predecessors, (22), 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) [2022-12-06 05:47:50,387 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 05:47:50,387 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 0 of 26 [2022-12-06 05:47:50,388 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 05:47:50,474 INFO L130 PetriNetUnfolder]: 421/756 cut-off events. [2022-12-06 05:47:50,474 INFO L131 PetriNetUnfolder]: For 497/497 co-relation queries the response was YES. [2022-12-06 05:47:50,475 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2115 conditions, 756 events. 421/756 cut-off events. For 497/497 co-relation queries the response was YES. Maximal size of possible extension queue 37. Compared 2826 event pairs, 98 based on Foata normal form. 54/778 useless extension candidates. Maximal degree in co-relation 1440. Up to 413 conditions per place. [2022-12-06 05:47:50,477 INFO L137 encePairwiseOnDemand]: 18/26 looper letters, 36 selfloop transitions, 7 changer transitions 0/43 dead transitions. [2022-12-06 05:47:50,478 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 38 places, 43 transitions, 262 flow [2022-12-06 05:47:50,478 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-06 05:47:50,478 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-12-06 05:47:50,479 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 46 transitions. [2022-12-06 05:47:50,479 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.4423076923076923 [2022-12-06 05:47:50,479 INFO L175 Difference]: Start difference. First operand has 35 places, 27 transitions, 126 flow. Second operand 4 states and 46 transitions. [2022-12-06 05:47:50,479 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 38 places, 43 transitions, 262 flow [2022-12-06 05:47:50,481 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 36 places, 43 transitions, 252 flow, removed 3 selfloop flow, removed 2 redundant places. [2022-12-06 05:47:50,482 INFO L231 Difference]: Finished difference. Result has 38 places, 29 transitions, 152 flow [2022-12-06 05:47:50,484 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=26, PETRI_DIFFERENCE_MINUEND_FLOW=104, PETRI_DIFFERENCE_MINUEND_PLACES=33, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=26, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=19, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=152, PETRI_PLACES=38, PETRI_TRANSITIONS=29} [2022-12-06 05:47:50,486 INFO L294 CegarLoopForPetriNet]: 32 programPoint places, 6 predicate places. [2022-12-06 05:47:50,486 WARN L163 eatedLiptonReduction]: Counterexample is not a run of mAbstraction. Replaying acceptance of the word... [2022-12-06 05:47:50,486 INFO L89 Accepts]: Start accepts. Operand has 38 places, 29 transitions, 152 flow [2022-12-06 05:47:50,487 INFO L95 Accepts]: Finished accepts. [2022-12-06 05:47:50,488 INFO L195 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-06 05:47:50,488 INFO L167 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 38 places, 29 transitions, 152 flow [2022-12-06 05:47:50,489 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 38 places, 29 transitions, 152 flow [2022-12-06 05:47:50,499 INFO L130 PetriNetUnfolder]: 59/179 cut-off events. [2022-12-06 05:47:50,499 INFO L131 PetriNetUnfolder]: For 108/108 co-relation queries the response was YES. [2022-12-06 05:47:50,499 INFO L83 FinitePrefix]: Finished finitePrefix Result has 438 conditions, 179 events. 59/179 cut-off events. For 108/108 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 527 event pairs, 0 based on Foata normal form. 0/168 useless extension candidates. Maximal degree in co-relation 412. Up to 64 conditions per place. [2022-12-06 05:47:50,500 INFO L184 LiptonReduction]: Starting Lipton reduction on Petri net that has 38 places, 29 transitions, 152 flow [2022-12-06 05:47:50,500 INFO L188 LiptonReduction]: Number of co-enabled transitions 148 [2022-12-06 05:47:50,524 INFO L203 LiptonReduction]: Total number of compositions: 1 [2022-12-06 05:47:50,525 INFO L143 eatedLiptonReduction]: Time needed for LBE in milliseconds: 39 [2022-12-06 05:47:50,525 INFO L495 AbstractCegarLoop]: Abstraction has has 38 places, 29 transitions, 156 flow [2022-12-06 05:47:50,525 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.5) internal successors, (22), 3 states have internal predecessors, (22), 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) [2022-12-06 05:47:50,525 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 05:47:50,525 INFO L213 CegarLoopForPetriNet]: trace histogram [4, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 05:47:50,533 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-12-06 05:47:50,733 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-06 05:47:50,735 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-06 05:47:50,736 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 05:47:50,736 INFO L85 PathProgramCache]: Analyzing trace with hash 844345557, now seen corresponding path program 1 times [2022-12-06 05:47:50,736 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 05:47:50,736 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [923394478] [2022-12-06 05:47:50,736 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 05:47:50,736 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 05:47:50,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 05:47:50,855 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 10 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 05:47:50,856 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 05:47:50,856 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [923394478] [2022-12-06 05:47:50,856 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [923394478] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-06 05:47:50,856 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1057327074] [2022-12-06 05:47:50,856 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 05:47:50,856 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-06 05:47:50,856 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-06 05:47:50,872 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-06 05:47:50,887 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-12-06 05:47:50,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 05:47:50,992 INFO L263 TraceCheckSpWp]: Trace formula consists of 339 conjuncts, 5 conjunts are in the unsatisfiable core [2022-12-06 05:47:50,994 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-06 05:47:51,016 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 10 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 05:47:51,016 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-06 05:47:51,040 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 10 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 05:47:51,040 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1057327074] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-06 05:47:51,040 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-06 05:47:51,040 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 7 [2022-12-06 05:47:51,041 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1028062145] [2022-12-06 05:47:51,041 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-06 05:47:51,041 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-06 05:47:51,041 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 05:47:51,042 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-06 05:47:51,042 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2022-12-06 05:47:51,042 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 0 out of 26 [2022-12-06 05:47:51,042 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 38 places, 29 transitions, 156 flow. Second operand has 7 states, 7 states have (on average 4.571428571428571) internal successors, (32), 7 states have internal predecessors, (32), 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) [2022-12-06 05:47:51,042 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 05:47:51,042 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 0 of 26 [2022-12-06 05:47:51,042 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 05:47:51,250 INFO L130 PetriNetUnfolder]: 745/1354 cut-off events. [2022-12-06 05:47:51,250 INFO L131 PetriNetUnfolder]: For 1121/1121 co-relation queries the response was YES. [2022-12-06 05:47:51,253 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4252 conditions, 1354 events. 745/1354 cut-off events. For 1121/1121 co-relation queries the response was YES. Maximal size of possible extension queue 57. Compared 6205 event pairs, 148 based on Foata normal form. 144/1438 useless extension candidates. Maximal degree in co-relation 3261. Up to 410 conditions per place. [2022-12-06 05:47:51,258 INFO L137 encePairwiseOnDemand]: 21/26 looper letters, 71 selfloop transitions, 10 changer transitions 3/84 dead transitions. [2022-12-06 05:47:51,258 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 43 places, 84 transitions, 644 flow [2022-12-06 05:47:51,259 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-06 05:47:51,259 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-12-06 05:47:51,260 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 78 transitions. [2022-12-06 05:47:51,260 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.5 [2022-12-06 05:47:51,260 INFO L175 Difference]: Start difference. First operand has 38 places, 29 transitions, 156 flow. Second operand 6 states and 78 transitions. [2022-12-06 05:47:51,260 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 43 places, 84 transitions, 644 flow [2022-12-06 05:47:51,263 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 42 places, 84 transitions, 643 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-12-06 05:47:51,265 INFO L231 Difference]: Finished difference. Result has 46 places, 34 transitions, 235 flow [2022-12-06 05:47:51,265 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=26, PETRI_DIFFERENCE_MINUEND_FLOW=155, PETRI_DIFFERENCE_MINUEND_PLACES=37, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=29, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=23, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=235, PETRI_PLACES=46, PETRI_TRANSITIONS=34} [2022-12-06 05:47:51,267 INFO L294 CegarLoopForPetriNet]: 32 programPoint places, 14 predicate places. [2022-12-06 05:47:51,267 WARN L163 eatedLiptonReduction]: Counterexample is not a run of mAbstraction. Replaying acceptance of the word... [2022-12-06 05:47:51,267 INFO L89 Accepts]: Start accepts. Operand has 46 places, 34 transitions, 235 flow [2022-12-06 05:47:51,270 INFO L95 Accepts]: Finished accepts. [2022-12-06 05:47:51,270 INFO L195 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-06 05:47:51,270 INFO L167 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 46 places, 34 transitions, 235 flow [2022-12-06 05:47:51,271 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 46 places, 34 transitions, 235 flow [2022-12-06 05:47:51,301 INFO L130 PetriNetUnfolder]: 142/393 cut-off events. [2022-12-06 05:47:51,301 INFO L131 PetriNetUnfolder]: For 531/542 co-relation queries the response was YES. [2022-12-06 05:47:51,302 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1148 conditions, 393 events. 142/393 cut-off events. For 531/542 co-relation queries the response was YES. Maximal size of possible extension queue 25. Compared 1824 event pairs, 0 based on Foata normal form. 3/372 useless extension candidates. Maximal degree in co-relation 1117. Up to 142 conditions per place. [2022-12-06 05:47:51,304 INFO L184 LiptonReduction]: Starting Lipton reduction on Petri net that has 46 places, 34 transitions, 235 flow [2022-12-06 05:47:51,304 INFO L188 LiptonReduction]: Number of co-enabled transitions 170 [2022-12-06 05:47:51,331 INFO L203 LiptonReduction]: Total number of compositions: 1 [2022-12-06 05:47:51,332 INFO L143 eatedLiptonReduction]: Time needed for LBE in milliseconds: 65 [2022-12-06 05:47:51,332 INFO L495 AbstractCegarLoop]: Abstraction has has 45 places, 33 transitions, 233 flow [2022-12-06 05:47:51,332 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 4.571428571428571) internal successors, (32), 7 states have internal predecessors, (32), 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) [2022-12-06 05:47:51,332 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 05:47:51,332 INFO L213 CegarLoopForPetriNet]: trace histogram [4, 4, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 05:47:51,337 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-12-06 05:47:51,537 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-06 05:47:51,538 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-06 05:47:51,538 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 05:47:51,538 INFO L85 PathProgramCache]: Analyzing trace with hash -657721570, now seen corresponding path program 1 times [2022-12-06 05:47:51,538 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 05:47:51,538 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [483950253] [2022-12-06 05:47:51,538 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 05:47:51,538 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 05:47:51,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 05:47:51,691 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 17 proven. 10 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-12-06 05:47:51,691 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 05:47:51,691 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [483950253] [2022-12-06 05:47:51,691 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [483950253] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-06 05:47:51,692 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [4457253] [2022-12-06 05:47:51,692 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 05:47:51,692 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-06 05:47:51,692 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-06 05:47:51,693 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-06 05:47:51,695 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-12-06 05:47:51,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 05:47:51,795 INFO L263 TraceCheckSpWp]: Trace formula consists of 357 conjuncts, 15 conjunts are in the unsatisfiable core [2022-12-06 05:47:51,796 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-06 05:47:51,838 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 13 proven. 6 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2022-12-06 05:47:51,838 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-06 05:47:51,878 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 13 proven. 6 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2022-12-06 05:47:51,878 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [4457253] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-06 05:47:51,878 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-06 05:47:51,878 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 3, 3] total 5 [2022-12-06 05:47:51,879 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1619940676] [2022-12-06 05:47:51,879 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-06 05:47:51,880 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-06 05:47:51,881 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 05:47:51,881 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-06 05:47:51,881 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2022-12-06 05:47:51,881 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 0 out of 25 [2022-12-06 05:47:51,881 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 45 places, 33 transitions, 233 flow. Second operand has 6 states, 6 states have (on average 5.333333333333333) internal successors, (32), 5 states have internal predecessors, (32), 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) [2022-12-06 05:47:51,881 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 05:47:51,881 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 0 of 25 [2022-12-06 05:47:51,882 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 05:47:51,951 INFO L130 PetriNetUnfolder]: 187/368 cut-off events. [2022-12-06 05:47:51,951 INFO L131 PetriNetUnfolder]: For 647/647 co-relation queries the response was YES. [2022-12-06 05:47:51,952 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1252 conditions, 368 events. 187/368 cut-off events. For 647/647 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 1116 event pairs, 58 based on Foata normal form. 42/410 useless extension candidates. Maximal degree in co-relation 792. Up to 207 conditions per place. [2022-12-06 05:47:51,953 INFO L137 encePairwiseOnDemand]: 17/25 looper letters, 29 selfloop transitions, 9 changer transitions 1/39 dead transitions. [2022-12-06 05:47:51,953 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 48 places, 39 transitions, 306 flow [2022-12-06 05:47:51,954 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-06 05:47:51,954 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-12-06 05:47:51,954 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 39 transitions. [2022-12-06 05:47:51,954 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.39 [2022-12-06 05:47:51,954 INFO L175 Difference]: Start difference. First operand has 45 places, 33 transitions, 233 flow. Second operand 4 states and 39 transitions. [2022-12-06 05:47:51,954 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 48 places, 39 transitions, 306 flow [2022-12-06 05:47:51,956 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 47 places, 39 transitions, 297 flow, removed 3 selfloop flow, removed 1 redundant places. [2022-12-06 05:47:51,956 INFO L231 Difference]: Finished difference. Result has 47 places, 27 transitions, 186 flow [2022-12-06 05:47:51,956 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=25, PETRI_DIFFERENCE_MINUEND_FLOW=175, PETRI_DIFFERENCE_MINUEND_PLACES=44, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=28, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=19, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=186, PETRI_PLACES=47, PETRI_TRANSITIONS=27} [2022-12-06 05:47:51,957 INFO L294 CegarLoopForPetriNet]: 32 programPoint places, 15 predicate places. [2022-12-06 05:47:51,957 WARN L163 eatedLiptonReduction]: Counterexample is not a run of mAbstraction. Replaying acceptance of the word... [2022-12-06 05:47:51,957 INFO L89 Accepts]: Start accepts. Operand has 47 places, 27 transitions, 186 flow [2022-12-06 05:47:51,958 INFO L95 Accepts]: Finished accepts. [2022-12-06 05:47:51,958 INFO L195 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-06 05:47:51,958 INFO L167 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 47 places, 27 transitions, 186 flow [2022-12-06 05:47:51,958 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 47 places, 27 transitions, 186 flow [2022-12-06 05:47:51,965 INFO L130 PetriNetUnfolder]: 26/98 cut-off events. [2022-12-06 05:47:51,965 INFO L131 PetriNetUnfolder]: For 162/162 co-relation queries the response was YES. [2022-12-06 05:47:51,965 INFO L83 FinitePrefix]: Finished finitePrefix Result has 274 conditions, 98 events. 26/98 cut-off events. For 162/162 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 194 event pairs, 0 based on Foata normal form. 0/98 useless extension candidates. Maximal degree in co-relation 245. Up to 29 conditions per place. [2022-12-06 05:47:51,966 INFO L184 LiptonReduction]: Starting Lipton reduction on Petri net that has 47 places, 27 transitions, 186 flow [2022-12-06 05:47:51,966 INFO L188 LiptonReduction]: Number of co-enabled transitions 96 [2022-12-06 05:47:51,966 INFO L203 LiptonReduction]: Total number of compositions: 0 [2022-12-06 05:47:51,967 INFO L143 eatedLiptonReduction]: Time needed for LBE in milliseconds: 10 [2022-12-06 05:47:51,967 INFO L495 AbstractCegarLoop]: Abstraction has has 47 places, 27 transitions, 186 flow [2022-12-06 05:47:51,967 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 5.333333333333333) internal successors, (32), 5 states have internal predecessors, (32), 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) [2022-12-06 05:47:51,967 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 05:47:51,967 INFO L213 CegarLoopForPetriNet]: trace histogram [4, 4, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 05:47:51,972 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2022-12-06 05:47:52,172 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-06 05:47:52,172 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-06 05:47:52,173 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 05:47:52,173 INFO L85 PathProgramCache]: Analyzing trace with hash -218736578, now seen corresponding path program 2 times [2022-12-06 05:47:52,173 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 05:47:52,173 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [291272058] [2022-12-06 05:47:52,173 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 05:47:52,173 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 05:47:52,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 05:47:52,460 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 31 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-12-06 05:47:52,460 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 05:47:52,460 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [291272058] [2022-12-06 05:47:52,460 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [291272058] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-06 05:47:52,461 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1078650703] [2022-12-06 05:47:52,461 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-12-06 05:47:52,461 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-06 05:47:52,461 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-06 05:47:52,462 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-06 05:47:52,464 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-12-06 05:47:52,636 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-12-06 05:47:52,636 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-06 05:47:52,638 INFO L263 TraceCheckSpWp]: Trace formula consists of 357 conjuncts, 22 conjunts are in the unsatisfiable core [2022-12-06 05:47:52,640 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-06 05:47:52,757 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 2 proven. 30 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 05:47:52,758 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-06 05:47:53,772 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 32 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 05:47:53,773 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1078650703] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-06 05:47:53,773 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-06 05:47:53,773 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 8, 8] total 21 [2022-12-06 05:47:53,773 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1014073770] [2022-12-06 05:47:53,773 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-06 05:47:53,774 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2022-12-06 05:47:53,774 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 05:47:53,775 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2022-12-06 05:47:53,775 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=76, Invalid=430, Unknown=0, NotChecked=0, Total=506 [2022-12-06 05:47:53,776 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 0 out of 25 [2022-12-06 05:47:53,776 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 47 places, 27 transitions, 186 flow. Second operand has 23 states, 22 states have (on average 3.5) internal successors, (77), 22 states have internal predecessors, (77), 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) [2022-12-06 05:47:53,776 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 05:47:53,776 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 0 of 25 [2022-12-06 05:47:53,776 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 05:47:54,246 INFO L130 PetriNetUnfolder]: 169/337 cut-off events. [2022-12-06 05:47:54,247 INFO L131 PetriNetUnfolder]: For 586/586 co-relation queries the response was YES. [2022-12-06 05:47:54,248 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1164 conditions, 337 events. 169/337 cut-off events. For 586/586 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 958 event pairs, 19 based on Foata normal form. 1/338 useless extension candidates. Maximal degree in co-relation 801. Up to 74 conditions per place. [2022-12-06 05:47:54,248 INFO L137 encePairwiseOnDemand]: 19/25 looper letters, 0 selfloop transitions, 0 changer transitions 60/60 dead transitions. [2022-12-06 05:47:54,248 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 54 places, 60 transitions, 450 flow [2022-12-06 05:47:54,248 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-12-06 05:47:54,248 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2022-12-06 05:47:54,249 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 61 transitions. [2022-12-06 05:47:54,249 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.27111111111111114 [2022-12-06 05:47:54,249 INFO L175 Difference]: Start difference. First operand has 47 places, 27 transitions, 186 flow. Second operand 9 states and 61 transitions. [2022-12-06 05:47:54,249 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 54 places, 60 transitions, 450 flow [2022-12-06 05:47:54,250 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 50 places, 60 transitions, 428 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-12-06 05:47:54,251 INFO L231 Difference]: Finished difference. Result has 50 places, 0 transitions, 0 flow [2022-12-06 05:47:54,251 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=25, PETRI_DIFFERENCE_MINUEND_FLOW=164, PETRI_DIFFERENCE_MINUEND_PLACES=42, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=26, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=26, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=0, PETRI_PLACES=50, PETRI_TRANSITIONS=0} [2022-12-06 05:47:54,251 INFO L294 CegarLoopForPetriNet]: 32 programPoint places, 18 predicate places. [2022-12-06 05:47:54,251 INFO L195 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-06 05:47:54,251 INFO L167 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 50 places, 0 transitions, 0 flow [2022-12-06 05:47:54,252 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 0 places, 0 transitions, 0 flow [2022-12-06 05:47:54,252 INFO L130 PetriNetUnfolder]: 0/0 cut-off events. [2022-12-06 05:47:54,252 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-06 05:47:54,252 INFO L83 FinitePrefix]: Finished finitePrefix Result has 0 conditions, 0 events. 0/0 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 0. Compared 0 event pairs, 0 based on Foata normal form. 0/0 useless extension candidates. Maximal degree in co-relation 0. Up to 0 conditions per place. [2022-12-06 05:47:54,252 INFO L184 LiptonReduction]: Starting Lipton reduction on Petri net that has 0 places, 0 transitions, 0 flow [2022-12-06 05:47:54,252 INFO L188 LiptonReduction]: Number of co-enabled transitions 0 [2022-12-06 05:47:54,252 INFO L203 LiptonReduction]: Total number of compositions: 0 [2022-12-06 05:47:54,253 INFO L143 eatedLiptonReduction]: Time needed for LBE in milliseconds: 2 [2022-12-06 05:47:54,253 INFO L495 AbstractCegarLoop]: Abstraction has has 0 places, 0 transitions, 0 flow [2022-12-06 05:47:54,253 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 22 states have (on average 3.5) internal successors, (77), 22 states have internal predecessors, (77), 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) [2022-12-06 05:47:54,254 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 3 remaining) [2022-12-06 05:47:54,255 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 3 remaining) [2022-12-06 05:47:54,256 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 3 remaining) [2022-12-06 05:47:54,263 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2022-12-06 05:47:54,457 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-06 05:47:54,457 INFO L458 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1, 1, 1, 1] [2022-12-06 05:47:54,459 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-12-06 05:47:54,459 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-06 05:47:54,461 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.12 05:47:54 BasicIcfg [2022-12-06 05:47:54,461 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-06 05:47:54,462 INFO L158 Benchmark]: Toolchain (without parser) took 14000.07ms. Allocated memory was 225.4MB in the beginning and 348.1MB in the end (delta: 122.7MB). Free memory was 200.1MB in the beginning and 171.2MB in the end (delta: 28.9MB). Peak memory consumption was 153.1MB. Max. memory is 8.0GB. [2022-12-06 05:47:54,462 INFO L158 Benchmark]: CDTParser took 0.09ms. Allocated memory is still 225.4MB. Free memory is still 202.1MB. There was no memory consumed. Max. memory is 8.0GB. [2022-12-06 05:47:54,462 INFO L158 Benchmark]: CACSL2BoogieTranslator took 479.69ms. Allocated memory is still 225.4MB. Free memory was 199.5MB in the beginning and 173.3MB in the end (delta: 26.2MB). Peak memory consumption was 26.2MB. Max. memory is 8.0GB. [2022-12-06 05:47:54,462 INFO L158 Benchmark]: Boogie Procedure Inliner took 54.58ms. Allocated memory is still 225.4MB. Free memory was 173.3MB in the beginning and 171.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-12-06 05:47:54,462 INFO L158 Benchmark]: Boogie Preprocessor took 29.18ms. Allocated memory is still 225.4MB. Free memory was 171.2MB in the beginning and 169.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-12-06 05:47:54,462 INFO L158 Benchmark]: RCFGBuilder took 393.40ms. Allocated memory is still 225.4MB. Free memory was 169.1MB in the beginning and 152.3MB in the end (delta: 16.8MB). Peak memory consumption was 16.8MB. Max. memory is 8.0GB. [2022-12-06 05:47:54,463 INFO L158 Benchmark]: TraceAbstraction took 13037.29ms. Allocated memory was 225.4MB in the beginning and 348.1MB in the end (delta: 122.7MB). Free memory was 151.3MB in the beginning and 171.2MB in the end (delta: -19.9MB). Peak memory consumption was 103.8MB. Max. memory is 8.0GB. [2022-12-06 05:47:54,463 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 225.4MB. Free memory is still 202.1MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 479.69ms. Allocated memory is still 225.4MB. Free memory was 199.5MB in the beginning and 173.3MB in the end (delta: 26.2MB). Peak memory consumption was 26.2MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 54.58ms. Allocated memory is still 225.4MB. Free memory was 173.3MB in the beginning and 171.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 29.18ms. Allocated memory is still 225.4MB. Free memory was 171.2MB in the beginning and 169.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * RCFGBuilder took 393.40ms. Allocated memory is still 225.4MB. Free memory was 169.1MB in the beginning and 152.3MB in the end (delta: 16.8MB). Peak memory consumption was 16.8MB. Max. memory is 8.0GB. * TraceAbstraction took 13037.29ms. Allocated memory was 225.4MB in the beginning and 348.1MB in the end (delta: 122.7MB). Free memory was 151.3MB in the beginning and 171.2MB in the end (delta: -19.9MB). Peak memory consumption was 103.8MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 6.6s, 117 PlacesBefore, 32 PlacesAfterwards, 118 TransitionsBefore, 31 TransitionsAfterwards, 1922 CoEnabledTransitionPairs, 3 FixpointIterations, 0 TrivialSequentialCompositions, 6 ConcurrentSequentialCompositions, 53 TrivialYvCompositions, 32 ConcurrentYvCompositions, 2 ChoiceCompositions, 93 TotalNumberOfCompositions, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 1442, independent: 1373, independent conditional: 1373, independent unconditional: 0, dependent: 69, dependent conditional: 69, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 1442, independent: 1373, independent conditional: 0, independent unconditional: 1373, dependent: 69, dependent conditional: 0, dependent unconditional: 69, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 1442, independent: 1373, independent conditional: 0, independent unconditional: 1373, dependent: 69, dependent conditional: 0, dependent unconditional: 69, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 1442, independent: 1373, independent conditional: 0, independent unconditional: 1373, dependent: 69, dependent conditional: 0, dependent unconditional: 69, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 1167, independent: 1139, independent conditional: 0, independent unconditional: 1139, dependent: 28, dependent conditional: 0, dependent unconditional: 28, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 1167, independent: 1115, independent conditional: 0, independent unconditional: 1115, dependent: 52, dependent conditional: 0, dependent unconditional: 52, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 52, independent: 24, independent conditional: 0, independent unconditional: 24, dependent: 28, dependent conditional: 0, dependent unconditional: 28, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 80, independent: 32, independent conditional: 0, independent unconditional: 32, dependent: 49, dependent conditional: 0, dependent unconditional: 49, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 1442, independent: 234, independent conditional: 0, independent unconditional: 234, dependent: 41, dependent conditional: 0, dependent unconditional: 41, unknown: 1167, unknown conditional: 0, unknown unconditional: 1167] , Statistics on independence cache: Total cache size (in pairs): 1782, Positive cache size: 1754, Positive conditional cache size: 0, Positive unconditional cache size: 1754, Negative cache size: 28, Negative conditional cache size: 0, Negative unconditional cache size: 28, 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, 31 PlacesBefore, 31 PlacesAfterwards, 30 TransitionsBefore, 30 TransitionsAfterwards, 346 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 151, independent: 129, independent conditional: 129, 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: 151, independent: 129, independent conditional: 4, independent unconditional: 125, dependent: 22, dependent conditional: 1, dependent unconditional: 21, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 151, independent: 129, independent conditional: 4, independent unconditional: 125, dependent: 22, dependent conditional: 1, dependent unconditional: 21, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 151, independent: 129, independent conditional: 4, independent unconditional: 125, dependent: 22, dependent conditional: 1, dependent unconditional: 21, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 133, independent: 114, independent conditional: 4, independent unconditional: 110, dependent: 19, dependent conditional: 1, dependent unconditional: 18, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 133, independent: 112, independent conditional: 0, independent unconditional: 112, dependent: 21, dependent conditional: 0, dependent unconditional: 21, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 21, independent: 2, independent conditional: 0, independent unconditional: 2, dependent: 19, dependent conditional: 1, dependent unconditional: 18, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 19, independent: 1, independent conditional: 0, independent unconditional: 1, dependent: 18, dependent conditional: 1, dependent unconditional: 17, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 151, independent: 15, independent conditional: 0, independent unconditional: 15, dependent: 3, dependent conditional: 0, dependent unconditional: 3, unknown: 133, unknown conditional: 5, unknown unconditional: 128] , Statistics on independence cache: Total cache size (in pairs): 133, Positive cache size: 114, Positive conditional cache size: 4, Positive unconditional cache size: 110, Negative cache size: 19, Negative conditional cache size: 1, Negative unconditional cache size: 18, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 0, Maximal queried relation: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 0.0s, 33 PlacesBefore, 33 PlacesAfterwards, 31 TransitionsBefore, 31 TransitionsAfterwards, 374 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 149, independent: 125, independent conditional: 125, 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: 149, independent: 125, independent conditional: 5, independent unconditional: 120, dependent: 24, dependent conditional: 2, dependent unconditional: 22, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 149, independent: 125, independent conditional: 5, independent unconditional: 120, dependent: 24, dependent conditional: 2, dependent unconditional: 22, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 149, independent: 125, independent conditional: 5, independent unconditional: 120, dependent: 24, dependent conditional: 2, dependent unconditional: 22, 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: 149, independent: 125, independent conditional: 5, independent unconditional: 120, dependent: 23, dependent conditional: 1, dependent unconditional: 22, unknown: 1, unknown conditional: 1, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 134, Positive cache size: 114, Positive conditional cache size: 4, Positive unconditional cache size: 110, Negative cache size: 20, Negative conditional cache size: 2, Negative unconditional cache size: 18, 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: 0.1s, 34 PlacesBefore, 30 PlacesAfterwards, 31 TransitionsBefore, 27 TransitionsAfterwards, 212 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 2 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 4 ConcurrentYvCompositions, 0 ChoiceCompositions, 6 TotalNumberOfCompositions, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 35, independent: 35, independent conditional: 35, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 35, independent: 35, independent conditional: 0, independent unconditional: 35, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 35, independent: 35, independent conditional: 0, independent unconditional: 35, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 35, independent: 35, independent conditional: 0, independent unconditional: 35, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 9, independent: 9, independent conditional: 0, independent unconditional: 9, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 9, independent: 9, independent conditional: 0, independent unconditional: 9, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 35, independent: 26, independent conditional: 0, independent unconditional: 26, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 9, unknown conditional: 0, unknown unconditional: 9] , Statistics on independence cache: Total cache size (in pairs): 176, Positive cache size: 156, Positive conditional cache size: 4, Positive unconditional cache size: 152, Negative cache size: 20, Negative conditional cache size: 2, Negative unconditional cache size: 18, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 0, Maximal queried relation: -1 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 0.1s, 38 PlacesBefore, 35 PlacesAfterwards, 30 TransitionsBefore, 27 TransitionsAfterwards, 202 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 2 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 3 ConcurrentYvCompositions, 0 ChoiceCompositions, 5 TotalNumberOfCompositions, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 25, independent: 25, independent conditional: 25, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 25, independent: 25, independent conditional: 0, independent unconditional: 25, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 25, independent: 25, independent conditional: 0, independent unconditional: 25, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 25, independent: 25, independent conditional: 0, independent unconditional: 25, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 8, independent: 8, independent conditional: 0, independent unconditional: 8, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 8, independent: 8, independent conditional: 0, independent unconditional: 8, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 25, independent: 17, independent conditional: 0, independent unconditional: 17, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 8, unknown conditional: 0, unknown unconditional: 8] , Statistics on independence cache: Total cache size (in pairs): 198, Positive cache size: 178, Positive conditional cache size: 4, Positive unconditional cache size: 174, Negative cache size: 20, Negative conditional cache size: 2, Negative unconditional cache size: 18, 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, 38 PlacesBefore, 38 PlacesAfterwards, 29 TransitionsBefore, 29 TransitionsAfterwards, 148 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 1 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 1 TotalNumberOfCompositions, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 5, independent: 5, independent conditional: 5, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 5, independent: 5, independent conditional: 5, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 5, independent: 5, independent conditional: 5, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 5, independent: 5, independent conditional: 5, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 5, independent: 5, independent conditional: 5, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 198, Positive cache size: 178, Positive conditional cache size: 4, Positive unconditional cache size: 174, Negative cache size: 20, Negative conditional cache size: 2, Negative unconditional cache size: 18, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 0, Maximal queried relation: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 0.0s, 46 PlacesBefore, 45 PlacesAfterwards, 34 TransitionsBefore, 33 TransitionsAfterwards, 170 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 1 ConcurrentYvCompositions, 0 ChoiceCompositions, 1 TotalNumberOfCompositions, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 5, independent: 5, independent conditional: 5, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 5, independent: 5, independent conditional: 5, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 5, independent: 5, independent conditional: 5, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 5, independent: 5, independent conditional: 5, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 5, independent: 5, independent conditional: 5, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 198, Positive cache size: 178, Positive conditional cache size: 4, Positive unconditional cache size: 174, Negative cache size: 20, Negative conditional cache size: 2, Negative unconditional cache size: 18, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 0, Maximal queried relation: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 0.0s, 47 PlacesBefore, 47 PlacesAfterwards, 27 TransitionsBefore, 27 TransitionsAfterwards, 96 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 198, Positive cache size: 178, Positive conditional cache size: 4, Positive unconditional cache size: 174, Negative cache size: 20, Negative conditional cache size: 2, Negative unconditional cache size: 18, 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, 0 PlacesBefore, 0 PlacesAfterwards, 0 TransitionsBefore, 0 TransitionsAfterwards, 0 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 198, Positive cache size: 178, Positive conditional cache size: 4, Positive unconditional cache size: 174, Negative cache size: 20, Negative conditional cache size: 2, Negative unconditional cache size: 18, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 0, Maximal queried relation: -1 - PositiveResult [Line: 919]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 167 locations, 3 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: 12.9s, OverallIterations: 8, TraceHistogramMax: 4, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 1.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 6.8s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 350 SdHoareTripleChecker+Valid, 0.8s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 350 mSDsluCounter, 0 SdHoareTripleChecker+Invalid, 0.7s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 41 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1175 IncrementalHoareTripleChecker+Invalid, 1216 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 41 mSolverCounterUnsat, 0 mSDtfsCounter, 1175 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 261 GetRequests, 201 SyntacticMatches, 17 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 151 ImplicationChecksByTransitivity, 0.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=235occurred in iteration=6, InterpolantAutomatonStates: 38, 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: 0.1s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 2.2s InterpolantComputationTime, 310 NumberOfCodeBlocks, 310 NumberOfCodeBlocksAsserted, 14 NumberOfCheckSat, 396 ConstructedInterpolants, 21 QuantifiedInterpolants, 2636 SizeOfPredicates, 2 NumberOfNonLiveVariables, 1611 ConjunctsInSsa, 48 ConjunctsInUnsatCore, 17 InterpolantComputations, 4 PerfectInterpolantSequences, 147/312 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 - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-12-06 05:47:54,494 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...