/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/sync01.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.repeated-lipton-8d0d62b [2022-12-06 04:06:07,860 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-06 04:06:07,873 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-06 04:06:07,913 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-06 04:06:07,914 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-06 04:06:07,916 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-06 04:06:07,919 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-06 04:06:07,923 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-06 04:06:07,927 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-06 04:06:07,933 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-06 04:06:07,934 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-06 04:06:07,935 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-06 04:06:07,936 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-06 04:06:07,938 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-06 04:06:07,939 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-06 04:06:07,942 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-06 04:06:07,943 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-06 04:06:07,943 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-06 04:06:07,944 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-06 04:06:07,946 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-06 04:06:07,947 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-06 04:06:07,950 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-06 04:06:07,951 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-06 04:06:07,952 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-06 04:06:07,961 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-06 04:06:07,961 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-06 04:06:07,961 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-06 04:06:07,963 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-06 04:06:07,963 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-06 04:06:07,964 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-06 04:06:07,964 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-06 04:06:07,966 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-06 04:06:07,967 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-06 04:06:07,968 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-06 04:06:07,968 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-06 04:06:07,968 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-06 04:06:07,969 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-06 04:06:07,969 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-06 04:06:07,969 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-06 04:06:07,970 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-06 04:06:07,971 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-06 04:06:07,972 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 04:06:08,004 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-06 04:06:08,005 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-06 04:06:08,006 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-06 04:06:08,006 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-06 04:06:08,007 INFO L138 SettingsManager]: * Use SBE=true [2022-12-06 04:06:08,007 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-06 04:06:08,007 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-06 04:06:08,008 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-06 04:06:08,008 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-06 04:06:08,008 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-06 04:06:08,009 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-06 04:06:08,009 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-06 04:06:08,009 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-06 04:06:08,009 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-06 04:06:08,009 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-06 04:06:08,009 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-06 04:06:08,009 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-06 04:06:08,010 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-06 04:06:08,010 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-06 04:06:08,010 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-12-06 04:06:08,010 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-06 04:06:08,010 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-06 04:06:08,010 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-06 04:06:08,010 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-06 04:06:08,011 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-06 04:06:08,011 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-06 04:06:08,011 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-06 04:06:08,011 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=REPEATED_LIPTON_PN [2022-12-06 04:06:08,011 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-12-06 04:06:08,320 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-06 04:06:08,341 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-06 04:06:08,343 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-06 04:06:08,344 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-06 04:06:08,345 INFO L275 PluginConnector]: CDTParser initialized [2022-12-06 04:06:08,346 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread/sync01.i [2022-12-06 04:06:09,454 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-06 04:06:09,720 INFO L351 CDTParser]: Found 1 translation units. [2022-12-06 04:06:09,721 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread/sync01.i [2022-12-06 04:06:09,760 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ce940d447/83dfb6380659423c8f55298fd601da2f/FLAG86adeaac0 [2022-12-06 04:06:09,779 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ce940d447/83dfb6380659423c8f55298fd601da2f [2022-12-06 04:06:09,781 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-06 04:06:09,782 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-12-06 04:06:09,783 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-06 04:06:09,783 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-06 04:06:09,785 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-06 04:06:09,786 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 04:06:09" (1/1) ... [2022-12-06 04:06:09,787 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@50bef73 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:06:09, skipping insertion in model container [2022-12-06 04:06:09,787 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 04:06:09" (1/1) ... [2022-12-06 04:06:09,792 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-06 04:06:09,847 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-06 04:06:10,280 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/sync01.i[42004,42017] [2022-12-06 04:06:10,284 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-06 04:06:10,299 INFO L203 MainTranslator]: Completed pre-run [2022-12-06 04:06:10,349 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/sync01.i[42004,42017] [2022-12-06 04:06:10,350 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-06 04:06:10,402 INFO L208 MainTranslator]: Completed translation [2022-12-06 04:06:10,402 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:06:10 WrapperNode [2022-12-06 04:06:10,402 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-06 04:06:10,404 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-06 04:06:10,404 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-06 04:06:10,405 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-06 04:06:10,411 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:06:10" (1/1) ... [2022-12-06 04:06:10,426 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:06:10" (1/1) ... [2022-12-06 04:06:10,454 INFO L138 Inliner]: procedures = 268, calls = 46, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 73 [2022-12-06 04:06:10,454 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-06 04:06:10,455 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-06 04:06:10,455 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-06 04:06:10,455 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-06 04:06:10,461 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:06:10" (1/1) ... [2022-12-06 04:06:10,461 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:06:10" (1/1) ... [2022-12-06 04:06:10,465 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:06:10" (1/1) ... [2022-12-06 04:06:10,465 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:06:10" (1/1) ... [2022-12-06 04:06:10,470 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:06:10" (1/1) ... [2022-12-06 04:06:10,473 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:06:10" (1/1) ... [2022-12-06 04:06:10,474 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:06:10" (1/1) ... [2022-12-06 04:06:10,485 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:06:10" (1/1) ... [2022-12-06 04:06:10,491 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-06 04:06:10,491 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-06 04:06:10,492 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-06 04:06:10,492 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-06 04:06:10,494 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:06:10" (1/1) ... [2022-12-06 04:06:10,499 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-06 04:06:10,509 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-06 04:06:10,524 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 04:06:10,531 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 04:06:10,562 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-06 04:06:10,563 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-06 04:06:10,563 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-06 04:06:10,563 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-12-06 04:06:10,563 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-12-06 04:06:10,563 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-12-06 04:06:10,564 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-12-06 04:06:10,564 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-06 04:06:10,564 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-12-06 04:06:10,564 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-06 04:06:10,564 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-06 04:06:10,564 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-06 04:06:10,564 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-06 04:06:10,565 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 04:06:10,696 INFO L236 CfgBuilder]: Building ICFG [2022-12-06 04:06:10,697 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-06 04:06:10,987 INFO L277 CfgBuilder]: Performing block encoding [2022-12-06 04:06:10,993 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-06 04:06:10,993 INFO L302 CfgBuilder]: Removed 2 assume(true) statements. [2022-12-06 04:06:10,995 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 04:06:10 BoogieIcfgContainer [2022-12-06 04:06:10,995 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-06 04:06:10,997 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-06 04:06:10,997 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-06 04:06:11,000 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-06 04:06:11,000 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.12 04:06:09" (1/3) ... [2022-12-06 04:06:11,001 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@101355a9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.12 04:06:11, skipping insertion in model container [2022-12-06 04:06:11,001 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:06:10" (2/3) ... [2022-12-06 04:06:11,001 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@101355a9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.12 04:06:11, skipping insertion in model container [2022-12-06 04:06:11,001 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 04:06:10" (3/3) ... [2022-12-06 04:06:11,002 INFO L112 eAbstractionObserver]: Analyzing ICFG sync01.i [2022-12-06 04:06:11,023 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-06 04:06:11,023 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-12-06 04:06:11,023 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-12-06 04:06:11,105 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2022-12-06 04:06:11,143 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 105 places, 103 transitions, 222 flow [2022-12-06 04:06:11,210 INFO L130 PetriNetUnfolder]: 5/101 cut-off events. [2022-12-06 04:06:11,210 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-12-06 04:06:11,216 INFO L83 FinitePrefix]: Finished finitePrefix Result has 110 conditions, 101 events. 5/101 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 73 event pairs, 0 based on Foata normal form. 0/95 useless extension candidates. Maximal degree in co-relation 67. Up to 2 conditions per place. [2022-12-06 04:06:11,216 INFO L82 GeneralOperation]: Start removeDead. Operand has 105 places, 103 transitions, 222 flow [2022-12-06 04:06:11,221 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 94 places, 91 transitions, 194 flow [2022-12-06 04:06:11,222 INFO L195 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-06 04:06:11,242 INFO L167 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 94 places, 91 transitions, 194 flow [2022-12-06 04:06:11,249 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 94 places, 91 transitions, 194 flow [2022-12-06 04:06:11,287 INFO L130 PetriNetUnfolder]: 4/91 cut-off events. [2022-12-06 04:06:11,287 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-12-06 04:06:11,289 INFO L83 FinitePrefix]: Finished finitePrefix Result has 100 conditions, 91 events. 4/91 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 64 event pairs, 0 based on Foata normal form. 0/87 useless extension candidates. Maximal degree in co-relation 67. Up to 2 conditions per place. [2022-12-06 04:06:11,291 INFO L184 LiptonReduction]: Starting Lipton reduction on Petri net that has 94 places, 91 transitions, 194 flow [2022-12-06 04:06:11,291 INFO L188 LiptonReduction]: Number of co-enabled transitions 900 [2022-12-06 04:06:15,931 INFO L203 LiptonReduction]: Total number of compositions: 70 [2022-12-06 04:06:15,945 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-06 04:06:15,950 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;@5894df88, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, Conditionality=CONDITIONAL_DISJUNCTIVE, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-06 04:06:15,950 INFO L358 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2022-12-06 04:06:15,956 INFO L130 PetriNetUnfolder]: 4/26 cut-off events. [2022-12-06 04:06:15,956 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-12-06 04:06:15,956 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 04:06:15,957 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 04:06:15,957 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 04:06:15,961 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 04:06:15,961 INFO L85 PathProgramCache]: Analyzing trace with hash -1288908627, now seen corresponding path program 1 times [2022-12-06 04:06:15,969 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 04:06:15,969 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [783086613] [2022-12-06 04:06:15,969 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 04:06:15,970 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 04:06:16,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 04:06:16,144 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 04:06:16,144 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 04:06:16,145 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [783086613] [2022-12-06 04:06:16,145 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [783086613] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 04:06:16,145 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 04:06:16,145 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-06 04:06:16,147 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [283908136] [2022-12-06 04:06:16,147 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 04:06:16,154 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-12-06 04:06:16,155 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 04:06:16,170 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-12-06 04:06:16,171 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-12-06 04:06:16,172 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 27 [2022-12-06 04:06:16,173 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 30 places, 27 transitions, 66 flow. Second operand has 2 states, 2 states have (on average 14.5) internal successors, (29), 2 states have internal predecessors, (29), 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 04:06:16,173 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 04:06:16,173 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 27 [2022-12-06 04:06:16,174 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 04:06:16,225 INFO L130 PetriNetUnfolder]: 65/148 cut-off events. [2022-12-06 04:06:16,225 INFO L131 PetriNetUnfolder]: For 10/10 co-relation queries the response was YES. [2022-12-06 04:06:16,225 INFO L83 FinitePrefix]: Finished finitePrefix Result has 283 conditions, 148 events. 65/148 cut-off events. For 10/10 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 497 event pairs, 45 based on Foata normal form. 20/150 useless extension candidates. Maximal degree in co-relation 232. Up to 117 conditions per place. [2022-12-06 04:06:16,227 INFO L137 encePairwiseOnDemand]: 25/27 looper letters, 17 selfloop transitions, 0 changer transitions 0/25 dead transitions. [2022-12-06 04:06:16,227 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 31 places, 25 transitions, 96 flow [2022-12-06 04:06:16,228 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-06 04:06:16,230 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2022-12-06 04:06:16,236 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 35 transitions. [2022-12-06 04:06:16,237 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.6481481481481481 [2022-12-06 04:06:16,239 INFO L175 Difference]: Start difference. First operand has 30 places, 27 transitions, 66 flow. Second operand 2 states and 35 transitions. [2022-12-06 04:06:16,240 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 31 places, 25 transitions, 96 flow [2022-12-06 04:06:16,241 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 27 places, 25 transitions, 88 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-12-06 04:06:16,243 INFO L231 Difference]: Finished difference. Result has 27 places, 25 transitions, 54 flow [2022-12-06 04:06:16,244 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=27, PETRI_DIFFERENCE_MINUEND_FLOW=54, PETRI_DIFFERENCE_MINUEND_PLACES=26, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=25, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=25, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=54, PETRI_PLACES=27, PETRI_TRANSITIONS=25} [2022-12-06 04:06:16,247 INFO L294 CegarLoopForPetriNet]: 30 programPoint places, -3 predicate places. [2022-12-06 04:06:16,248 WARN L163 eatedLiptonReduction]: Counterexample is not a run of mAbstraction. Replaying acceptance of the word... [2022-12-06 04:06:16,248 INFO L89 Accepts]: Start accepts. Operand has 27 places, 25 transitions, 54 flow [2022-12-06 04:06:16,251 INFO L95 Accepts]: Finished accepts. [2022-12-06 04:06:16,251 INFO L195 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-06 04:06:16,251 INFO L167 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 27 places, 25 transitions, 54 flow [2022-12-06 04:06:16,253 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 26 places, 25 transitions, 54 flow [2022-12-06 04:06:16,257 INFO L130 PetriNetUnfolder]: 2/25 cut-off events. [2022-12-06 04:06:16,257 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-06 04:06:16,258 INFO L83 FinitePrefix]: Finished finitePrefix Result has 28 conditions, 25 events. 2/25 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 34 event pairs, 0 based on Foata normal form. 0/23 useless extension candidates. Maximal degree in co-relation 16. Up to 2 conditions per place. [2022-12-06 04:06:16,258 INFO L184 LiptonReduction]: Starting Lipton reduction on Petri net that has 26 places, 25 transitions, 54 flow [2022-12-06 04:06:16,258 INFO L188 LiptonReduction]: Number of co-enabled transitions 224 [2022-12-06 04:06:16,280 INFO L203 LiptonReduction]: Total number of compositions: 0 [2022-12-06 04:06:16,282 INFO L143 eatedLiptonReduction]: Time needed for LBE in milliseconds: 34 [2022-12-06 04:06:16,282 INFO L495 AbstractCegarLoop]: Abstraction has has 26 places, 25 transitions, 54 flow [2022-12-06 04:06:16,282 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 14.5) internal successors, (29), 2 states have internal predecessors, (29), 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 04:06:16,282 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 04:06:16,283 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 04:06:16,283 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-06 04:06:16,283 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 04:06:16,283 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 04:06:16,284 INFO L85 PathProgramCache]: Analyzing trace with hash -996490606, now seen corresponding path program 1 times [2022-12-06 04:06:16,284 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 04:06:16,284 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [838034105] [2022-12-06 04:06:16,284 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 04:06:16,284 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 04:06:16,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 04:06:16,407 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 04:06:16,408 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 04:06:16,408 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [838034105] [2022-12-06 04:06:16,408 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [838034105] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 04:06:16,408 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 04:06:16,408 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-06 04:06:16,408 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [942603160] [2022-12-06 04:06:16,409 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 04:06:16,409 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-06 04:06:16,410 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 04:06:16,410 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-06 04:06:16,410 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-06 04:06:16,410 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 2 out of 25 [2022-12-06 04:06:16,411 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 26 places, 25 transitions, 54 flow. Second operand has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 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 04:06:16,411 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 04:06:16,411 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 2 of 25 [2022-12-06 04:06:16,411 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 04:06:16,480 INFO L130 PetriNetUnfolder]: 73/141 cut-off events. [2022-12-06 04:06:16,481 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-06 04:06:16,484 INFO L83 FinitePrefix]: Finished finitePrefix Result has 285 conditions, 141 events. 73/141 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 310 event pairs, 37 based on Foata normal form. 0/135 useless extension candidates. Maximal degree in co-relation 69. Up to 71 conditions per place. [2022-12-06 04:06:16,487 INFO L137 encePairwiseOnDemand]: 21/25 looper letters, 23 selfloop transitions, 2 changer transitions 0/26 dead transitions. [2022-12-06 04:06:16,487 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 26 places, 26 transitions, 106 flow [2022-12-06 04:06:16,488 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-06 04:06:16,488 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-06 04:06:16,489 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 33 transitions. [2022-12-06 04:06:16,490 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.44 [2022-12-06 04:06:16,490 INFO L175 Difference]: Start difference. First operand has 26 places, 25 transitions, 54 flow. Second operand 3 states and 33 transitions. [2022-12-06 04:06:16,490 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 26 places, 26 transitions, 106 flow [2022-12-06 04:06:16,490 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 26 places, 26 transitions, 106 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-12-06 04:06:16,492 INFO L231 Difference]: Finished difference. Result has 27 places, 22 transitions, 56 flow [2022-12-06 04:06:16,492 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=25, PETRI_DIFFERENCE_MINUEND_FLOW=48, PETRI_DIFFERENCE_MINUEND_PLACES=24, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=22, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=20, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=56, PETRI_PLACES=27, PETRI_TRANSITIONS=22} [2022-12-06 04:06:16,493 INFO L294 CegarLoopForPetriNet]: 30 programPoint places, -3 predicate places. [2022-12-06 04:06:16,493 WARN L163 eatedLiptonReduction]: Counterexample is not a run of mAbstraction. Replaying acceptance of the word... [2022-12-06 04:06:16,493 INFO L89 Accepts]: Start accepts. Operand has 27 places, 22 transitions, 56 flow [2022-12-06 04:06:16,494 INFO L95 Accepts]: Finished accepts. [2022-12-06 04:06:16,495 INFO L195 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-06 04:06:16,495 INFO L167 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 27 places, 22 transitions, 56 flow [2022-12-06 04:06:16,496 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 27 places, 22 transitions, 56 flow [2022-12-06 04:06:16,500 INFO L130 PetriNetUnfolder]: 1/22 cut-off events. [2022-12-06 04:06:16,500 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-06 04:06:16,500 INFO L83 FinitePrefix]: Finished finitePrefix Result has 31 conditions, 22 events. 1/22 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 11 event pairs, 0 based on Foata normal form. 0/22 useless extension candidates. Maximal degree in co-relation 16. Up to 3 conditions per place. [2022-12-06 04:06:16,500 INFO L184 LiptonReduction]: Starting Lipton reduction on Petri net that has 27 places, 22 transitions, 56 flow [2022-12-06 04:06:16,500 INFO L188 LiptonReduction]: Number of co-enabled transitions 94 [2022-12-06 04:06:16,637 INFO L203 LiptonReduction]: Total number of compositions: 5 [2022-12-06 04:06:16,639 INFO L143 eatedLiptonReduction]: Time needed for LBE in milliseconds: 146 [2022-12-06 04:06:16,639 INFO L495 AbstractCegarLoop]: Abstraction has has 22 places, 17 transitions, 46 flow [2022-12-06 04:06:16,639 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 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 04:06:16,639 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 04:06:16,639 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 04:06:16,639 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-06 04:06:16,639 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 04:06:16,640 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 04:06:16,640 INFO L85 PathProgramCache]: Analyzing trace with hash -1036307305, now seen corresponding path program 1 times [2022-12-06 04:06:16,640 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 04:06:16,640 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [591469236] [2022-12-06 04:06:16,641 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 04:06:16,641 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 04:06:16,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 04:06:16,761 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 04:06:16,761 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 04:06:16,761 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [591469236] [2022-12-06 04:06:16,761 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [591469236] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 04:06:16,761 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 04:06:16,762 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-06 04:06:16,762 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [661246892] [2022-12-06 04:06:16,762 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 04:06:16,762 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-06 04:06:16,762 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 04:06:16,763 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-06 04:06:16,763 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-06 04:06:16,763 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 1 out of 17 [2022-12-06 04:06:16,763 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 22 places, 17 transitions, 46 flow. Second operand has 4 states, 4 states have (on average 4.5) internal successors, (18), 4 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 04:06:16,763 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 04:06:16,764 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1 of 17 [2022-12-06 04:06:16,764 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 04:06:16,805 INFO L130 PetriNetUnfolder]: 39/82 cut-off events. [2022-12-06 04:06:16,805 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-12-06 04:06:16,806 INFO L83 FinitePrefix]: Finished finitePrefix Result has 186 conditions, 82 events. 39/82 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 182 event pairs, 15 based on Foata normal form. 5/85 useless extension candidates. Maximal degree in co-relation 81. Up to 53 conditions per place. [2022-12-06 04:06:16,807 INFO L137 encePairwiseOnDemand]: 12/17 looper letters, 0 selfloop transitions, 0 changer transitions 20/20 dead transitions. [2022-12-06 04:06:16,807 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 24 places, 20 transitions, 90 flow [2022-12-06 04:06:16,807 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-06 04:06:16,808 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-12-06 04:06:16,808 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 25 transitions. [2022-12-06 04:06:16,809 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.36764705882352944 [2022-12-06 04:06:16,809 INFO L175 Difference]: Start difference. First operand has 22 places, 17 transitions, 46 flow. Second operand 4 states and 25 transitions. [2022-12-06 04:06:16,809 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 24 places, 20 transitions, 90 flow [2022-12-06 04:06:16,810 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 22 places, 20 transitions, 86 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-12-06 04:06:16,810 INFO L231 Difference]: Finished difference. Result has 22 places, 0 transitions, 0 flow [2022-12-06 04:06:16,810 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=17, PETRI_DIFFERENCE_MINUEND_FLOW=40, PETRI_DIFFERENCE_MINUEND_PLACES=19, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=16, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=16, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=0, PETRI_PLACES=22, PETRI_TRANSITIONS=0} [2022-12-06 04:06:16,811 INFO L294 CegarLoopForPetriNet]: 30 programPoint places, -8 predicate places. [2022-12-06 04:06:16,811 INFO L195 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-06 04:06:16,812 INFO L167 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 22 places, 0 transitions, 0 flow [2022-12-06 04:06:16,812 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 0 places, 0 transitions, 0 flow [2022-12-06 04:06:16,812 INFO L130 PetriNetUnfolder]: 0/0 cut-off events. [2022-12-06 04:06:16,812 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-06 04:06:16,813 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 04:06:16,813 INFO L184 LiptonReduction]: Starting Lipton reduction on Petri net that has 0 places, 0 transitions, 0 flow [2022-12-06 04:06:16,813 INFO L188 LiptonReduction]: Number of co-enabled transitions 0 [2022-12-06 04:06:16,813 INFO L203 LiptonReduction]: Total number of compositions: 0 [2022-12-06 04:06:16,814 INFO L143 eatedLiptonReduction]: Time needed for LBE in milliseconds: 3 [2022-12-06 04:06:16,814 INFO L495 AbstractCegarLoop]: Abstraction has has 0 places, 0 transitions, 0 flow [2022-12-06 04:06:16,814 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 4.5) internal successors, (18), 4 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 04:06:16,820 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 3 remaining) [2022-12-06 04:06:16,820 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 3 remaining) [2022-12-06 04:06:16,820 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 3 remaining) [2022-12-06 04:06:16,821 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-06 04:06:16,821 INFO L458 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2022-12-06 04:06:16,824 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-12-06 04:06:16,825 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-06 04:06:16,833 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.12 04:06:16 BasicIcfg [2022-12-06 04:06:16,833 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-06 04:06:16,834 INFO L158 Benchmark]: Toolchain (without parser) took 7052.08ms. Allocated memory was 205.5MB in the beginning and 247.5MB in the end (delta: 41.9MB). Free memory was 180.3MB in the beginning and 181.1MB in the end (delta: -891.5kB). Peak memory consumption was 42.6MB. Max. memory is 8.0GB. [2022-12-06 04:06:16,834 INFO L158 Benchmark]: CDTParser took 0.12ms. Allocated memory is still 205.5MB. Free memory was 182.0MB in the beginning and 181.9MB in the end (delta: 80.4kB). There was no memory consumed. Max. memory is 8.0GB. [2022-12-06 04:06:16,835 INFO L158 Benchmark]: CACSL2BoogieTranslator took 619.91ms. Allocated memory is still 205.5MB. Free memory was 180.3MB in the beginning and 151.9MB in the end (delta: 28.3MB). Peak memory consumption was 28.3MB. Max. memory is 8.0GB. [2022-12-06 04:06:16,835 INFO L158 Benchmark]: Boogie Procedure Inliner took 50.58ms. Allocated memory is still 205.5MB. Free memory was 151.9MB in the beginning and 149.3MB in the end (delta: 2.6MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. [2022-12-06 04:06:16,835 INFO L158 Benchmark]: Boogie Preprocessor took 36.04ms. Allocated memory is still 205.5MB. Free memory was 149.3MB in the beginning and 147.7MB in the end (delta: 1.6MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-12-06 04:06:16,836 INFO L158 Benchmark]: RCFGBuilder took 503.90ms. Allocated memory is still 205.5MB. Free memory was 147.7MB in the beginning and 131.5MB in the end (delta: 16.3MB). Peak memory consumption was 16.8MB. Max. memory is 8.0GB. [2022-12-06 04:06:16,836 INFO L158 Benchmark]: TraceAbstraction took 5836.40ms. Allocated memory was 205.5MB in the beginning and 247.5MB in the end (delta: 41.9MB). Free memory was 131.0MB in the beginning and 181.1MB in the end (delta: -50.2MB). There was no memory consumed. Max. memory is 8.0GB. [2022-12-06 04:06:16,837 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12ms. Allocated memory is still 205.5MB. Free memory was 182.0MB in the beginning and 181.9MB in the end (delta: 80.4kB). There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 619.91ms. Allocated memory is still 205.5MB. Free memory was 180.3MB in the beginning and 151.9MB in the end (delta: 28.3MB). Peak memory consumption was 28.3MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 50.58ms. Allocated memory is still 205.5MB. Free memory was 151.9MB in the beginning and 149.3MB in the end (delta: 2.6MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 36.04ms. Allocated memory is still 205.5MB. Free memory was 149.3MB in the beginning and 147.7MB in the end (delta: 1.6MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 503.90ms. Allocated memory is still 205.5MB. Free memory was 147.7MB in the beginning and 131.5MB in the end (delta: 16.3MB). Peak memory consumption was 16.8MB. Max. memory is 8.0GB. * TraceAbstraction took 5836.40ms. Allocated memory was 205.5MB in the beginning and 247.5MB in the end (delta: 41.9MB). Free memory was 131.0MB in the beginning and 181.1MB in the end (delta: -50.2MB). There was no memory consumed. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 4.6s, 94 PlacesBefore, 30 PlacesAfterwards, 91 TransitionsBefore, 27 TransitionsAfterwards, 900 CoEnabledTransitionPairs, 4 FixpointIterations, 0 TrivialSequentialCompositions, 6 ConcurrentSequentialCompositions, 45 TrivialYvCompositions, 19 ConcurrentYvCompositions, 0 ChoiceCompositions, 70 TotalNumberOfCompositions, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 932, independent: 842, independent conditional: 842, independent unconditional: 0, dependent: 90, dependent conditional: 90, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 932, independent: 842, independent conditional: 0, independent unconditional: 842, dependent: 90, dependent conditional: 0, dependent unconditional: 90, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 932, independent: 842, independent conditional: 0, independent unconditional: 842, dependent: 90, dependent conditional: 0, dependent unconditional: 90, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 932, independent: 842, independent conditional: 0, independent unconditional: 842, dependent: 90, dependent conditional: 0, dependent unconditional: 90, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 568, independent: 534, independent conditional: 0, independent unconditional: 534, dependent: 34, dependent conditional: 0, dependent unconditional: 34, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 568, independent: 506, independent conditional: 0, independent unconditional: 506, dependent: 62, dependent conditional: 0, dependent unconditional: 62, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 62, independent: 28, independent conditional: 0, independent unconditional: 28, dependent: 34, dependent conditional: 0, dependent unconditional: 34, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 109, independent: 42, independent conditional: 0, independent unconditional: 42, dependent: 67, dependent conditional: 0, dependent unconditional: 67, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 932, independent: 308, independent conditional: 0, independent unconditional: 308, dependent: 56, dependent conditional: 0, dependent unconditional: 56, unknown: 568, unknown conditional: 0, unknown unconditional: 568] , Statistics on independence cache: Total cache size (in pairs): 814, Positive cache size: 780, Positive conditional cache size: 0, Positive unconditional cache size: 780, Negative cache size: 34, Negative conditional cache size: 0, Negative unconditional cache size: 34, 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, 26 PlacesBefore, 26 PlacesAfterwards, 25 TransitionsBefore, 25 TransitionsAfterwards, 224 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 90, independent: 70, independent conditional: 70, independent unconditional: 0, dependent: 20, dependent conditional: 20, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 90, independent: 70, independent conditional: 0, independent unconditional: 70, dependent: 20, dependent conditional: 0, dependent unconditional: 20, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 90, independent: 70, independent conditional: 0, independent unconditional: 70, dependent: 20, dependent conditional: 0, dependent unconditional: 20, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 90, independent: 70, independent conditional: 0, independent unconditional: 70, dependent: 20, dependent conditional: 0, dependent unconditional: 20, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 79, independent: 62, independent conditional: 0, independent unconditional: 62, dependent: 17, dependent conditional: 0, dependent unconditional: 17, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 79, independent: 58, independent conditional: 0, independent unconditional: 58, dependent: 21, dependent conditional: 0, dependent unconditional: 21, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 21, independent: 4, independent conditional: 0, independent unconditional: 4, dependent: 17, dependent conditional: 0, dependent unconditional: 17, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 20, independent: 3, independent conditional: 0, independent unconditional: 3, dependent: 17, dependent conditional: 0, dependent unconditional: 17, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 90, independent: 8, independent conditional: 0, independent unconditional: 8, dependent: 3, dependent conditional: 0, dependent unconditional: 3, unknown: 79, unknown conditional: 0, unknown unconditional: 79] , Statistics on independence cache: Total cache size (in pairs): 79, Positive cache size: 62, Positive conditional cache size: 0, Positive unconditional cache size: 62, Negative cache size: 17, Negative conditional cache size: 0, Negative unconditional cache size: 17, 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, 27 PlacesBefore, 22 PlacesAfterwards, 22 TransitionsBefore, 17 TransitionsAfterwards, 94 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 5 ConcurrentYvCompositions, 0 ChoiceCompositions, 5 TotalNumberOfCompositions, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 76, independent: 61, independent conditional: 61, independent unconditional: 0, dependent: 15, dependent conditional: 15, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 76, independent: 61, independent conditional: 4, independent unconditional: 57, dependent: 15, dependent conditional: 4, dependent unconditional: 11, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 76, independent: 61, independent conditional: 4, independent unconditional: 57, dependent: 15, dependent conditional: 4, dependent unconditional: 11, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 76, independent: 61, independent conditional: 4, independent unconditional: 57, dependent: 15, dependent conditional: 4, dependent unconditional: 11, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 29, independent: 24, independent conditional: 0, independent unconditional: 24, dependent: 5, dependent conditional: 2, dependent unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 29, independent: 22, independent conditional: 0, independent unconditional: 22, dependent: 7, dependent conditional: 0, dependent unconditional: 7, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 7, independent: 2, independent conditional: 0, independent unconditional: 2, dependent: 5, dependent conditional: 2, dependent unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 8, independent: 1, independent conditional: 0, independent unconditional: 1, dependent: 6, dependent conditional: 2, dependent unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 76, independent: 37, independent conditional: 4, independent unconditional: 33, dependent: 10, dependent conditional: 2, dependent unconditional: 8, unknown: 29, unknown conditional: 2, unknown unconditional: 27] , Statistics on independence cache: Total cache size (in pairs): 120, Positive cache size: 98, Positive conditional cache size: 0, Positive unconditional cache size: 98, Negative cache size: 22, Negative conditional cache size: 2, Negative unconditional cache size: 20, 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, 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): 120, Positive cache size: 98, Positive conditional cache size: 0, Positive unconditional cache size: 98, Negative cache size: 22, Negative conditional cache size: 2, Negative unconditional cache size: 20, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 0, Maximal queried relation: -1 - PositiveResult [Line: 966]: 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, 129 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: 5.7s, OverallIterations: 3, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 4.8s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 13 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 13 mSDsluCounter, 2 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 2 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 88 IncrementalHoareTripleChecker+Invalid, 90 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 2 mSolverCounterUnsat, 2 mSDtfsCounter, 88 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 8 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=66occurred in iteration=0, InterpolantAutomatonStates: 9, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 46 NumberOfCodeBlocks, 46 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 43 ConstructedInterpolants, 0 QuantifiedInterpolants, 77 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-12-06 04:06:16,857 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...