/usr/bin/java -Xmx16000000000 -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-VariableLbe.epf --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations AFTER -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/weaver/chl-simpl-str-trans.wvr.c -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-b8dbc81 [2023-01-28 09:15:06,777 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-01-28 09:15:06,778 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-01-28 09:15:06,811 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-01-28 09:15:06,811 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-01-28 09:15:06,813 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-01-28 09:15:06,815 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-01-28 09:15:06,817 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-01-28 09:15:06,818 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-01-28 09:15:06,822 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-01-28 09:15:06,823 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-01-28 09:15:06,824 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-01-28 09:15:06,824 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-01-28 09:15:06,826 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-01-28 09:15:06,827 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-01-28 09:15:06,829 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-01-28 09:15:06,829 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-01-28 09:15:06,830 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-01-28 09:15:06,831 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-01-28 09:15:06,834 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-01-28 09:15:06,835 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-01-28 09:15:06,836 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-01-28 09:15:06,837 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-01-28 09:15:06,838 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-01-28 09:15:06,843 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-01-28 09:15:06,843 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-01-28 09:15:06,843 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-01-28 09:15:06,844 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-01-28 09:15:06,844 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-01-28 09:15:06,844 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-01-28 09:15:06,845 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-01-28 09:15:06,845 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-01-28 09:15:06,845 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-01-28 09:15:06,846 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-01-28 09:15:06,846 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-01-28 09:15:06,846 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-01-28 09:15:06,847 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-01-28 09:15:06,847 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-01-28 09:15:06,847 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-01-28 09:15:06,847 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-01-28 09:15:06,848 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-01-28 09:15:06,851 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-VariableLbe.epf [2023-01-28 09:15:06,872 INFO L113 SettingsManager]: Loading preferences was successful [2023-01-28 09:15:06,872 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-01-28 09:15:06,873 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-01-28 09:15:06,873 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-01-28 09:15:06,874 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-01-28 09:15:06,874 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-01-28 09:15:06,874 INFO L138 SettingsManager]: * Use SBE=true [2023-01-28 09:15:06,874 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-01-28 09:15:06,874 INFO L138 SettingsManager]: * sizeof long=4 [2023-01-28 09:15:06,874 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-01-28 09:15:06,875 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-01-28 09:15:06,875 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-01-28 09:15:06,875 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-01-28 09:15:06,875 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-01-28 09:15:06,875 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-01-28 09:15:06,875 INFO L138 SettingsManager]: * sizeof long double=12 [2023-01-28 09:15:06,875 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-01-28 09:15:06,875 INFO L138 SettingsManager]: * Use constant arrays=true [2023-01-28 09:15:06,876 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-01-28 09:15:06,876 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-01-28 09:15:06,876 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-01-28 09:15:06,876 INFO L138 SettingsManager]: * To the following directory=./dump/ [2023-01-28 09:15:06,876 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-01-28 09:15:06,876 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-01-28 09:15:06,876 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-01-28 09:15:06,877 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-01-28 09:15:06,877 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-01-28 09:15:06,877 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-01-28 09:15:06,877 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-01-28 09:15:06,877 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-01-28 09:15:06,878 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-01-28 09:15:06,878 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: When to check the insufficient erros location relative to the other error locations -> AFTER [2023-01-28 09:15:07,024 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-01-28 09:15:07,038 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-01-28 09:15:07,040 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-01-28 09:15:07,040 INFO L271 PluginConnector]: Initializing CDTParser... [2023-01-28 09:15:07,041 INFO L275 PluginConnector]: CDTParser initialized [2023-01-28 09:15:07,041 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/chl-simpl-str-trans.wvr.c [2023-01-28 09:15:08,151 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-01-28 09:15:08,300 INFO L351 CDTParser]: Found 1 translation units. [2023-01-28 09:15:08,300 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/chl-simpl-str-trans.wvr.c [2023-01-28 09:15:08,306 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5369e102e/2aae8293aef94b708caee80dd279ba94/FLAG751a676b4 [2023-01-28 09:15:08,318 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5369e102e/2aae8293aef94b708caee80dd279ba94 [2023-01-28 09:15:08,319 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-01-28 09:15:08,321 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2023-01-28 09:15:08,323 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-01-28 09:15:08,323 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-01-28 09:15:08,325 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-01-28 09:15:08,326 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.01 09:15:08" (1/1) ... [2023-01-28 09:15:08,326 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@24bfd27c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 09:15:08, skipping insertion in model container [2023-01-28 09:15:08,326 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.01 09:15:08" (1/1) ... [2023-01-28 09:15:08,331 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-01-28 09:15:08,347 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-01-28 09:15:08,492 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/chl-simpl-str-trans.wvr.c[2514,2527] [2023-01-28 09:15:08,502 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-01-28 09:15:08,510 INFO L203 MainTranslator]: Completed pre-run [2023-01-28 09:15:08,541 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/chl-simpl-str-trans.wvr.c[2514,2527] [2023-01-28 09:15:08,542 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-01-28 09:15:08,551 INFO L208 MainTranslator]: Completed translation [2023-01-28 09:15:08,552 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 09:15:08 WrapperNode [2023-01-28 09:15:08,552 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-01-28 09:15:08,553 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-01-28 09:15:08,553 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-01-28 09:15:08,553 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-01-28 09:15:08,558 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 09:15:08" (1/1) ... [2023-01-28 09:15:08,569 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 09:15:08" (1/1) ... [2023-01-28 09:15:08,592 INFO L138 Inliner]: procedures = 23, calls = 30, calls flagged for inlining = 8, calls inlined = 12, statements flattened = 169 [2023-01-28 09:15:08,593 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-01-28 09:15:08,593 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-01-28 09:15:08,593 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-01-28 09:15:08,593 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-01-28 09:15:08,599 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 09:15:08" (1/1) ... [2023-01-28 09:15:08,599 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 09:15:08" (1/1) ... [2023-01-28 09:15:08,610 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 09:15:08" (1/1) ... [2023-01-28 09:15:08,610 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 09:15:08" (1/1) ... [2023-01-28 09:15:08,616 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 09:15:08" (1/1) ... [2023-01-28 09:15:08,618 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 09:15:08" (1/1) ... [2023-01-28 09:15:08,619 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 09:15:08" (1/1) ... [2023-01-28 09:15:08,620 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 09:15:08" (1/1) ... [2023-01-28 09:15:08,621 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-01-28 09:15:08,622 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-01-28 09:15:08,622 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-01-28 09:15:08,622 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-01-28 09:15:08,622 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 09:15:08" (1/1) ... [2023-01-28 09:15:08,631 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-01-28 09:15:08,638 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-01-28 09:15:08,682 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) [2023-01-28 09:15:08,706 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 [2023-01-28 09:15:08,726 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-01-28 09:15:08,726 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2023-01-28 09:15:08,727 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2023-01-28 09:15:08,727 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2023-01-28 09:15:08,727 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2023-01-28 09:15:08,727 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2023-01-28 09:15:08,727 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2023-01-28 09:15:08,727 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-01-28 09:15:08,727 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-01-28 09:15:08,727 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-01-28 09:15:08,728 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-01-28 09:15:08,728 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-01-28 09:15:08,728 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-01-28 09:15:08,728 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-01-28 09:15:08,729 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-01-28 09:15:08,797 INFO L236 CfgBuilder]: Building ICFG [2023-01-28 09:15:08,799 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-01-28 09:15:09,115 INFO L277 CfgBuilder]: Performing block encoding [2023-01-28 09:15:09,122 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-01-28 09:15:09,122 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-01-28 09:15:09,123 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.01 09:15:09 BoogieIcfgContainer [2023-01-28 09:15:09,123 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-01-28 09:15:09,125 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-01-28 09:15:09,125 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-01-28 09:15:09,127 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-01-28 09:15:09,127 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.01 09:15:08" (1/3) ... [2023-01-28 09:15:09,127 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@d34148d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.01 09:15:09, skipping insertion in model container [2023-01-28 09:15:09,127 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 09:15:08" (2/3) ... [2023-01-28 09:15:09,127 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@d34148d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.01 09:15:09, skipping insertion in model container [2023-01-28 09:15:09,128 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.01 09:15:09" (3/3) ... [2023-01-28 09:15:09,128 INFO L112 eAbstractionObserver]: Analyzing ICFG chl-simpl-str-trans.wvr.c [2023-01-28 09:15:09,139 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-01-28 09:15:09,139 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-01-28 09:15:09,139 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-01-28 09:15:09,240 INFO L144 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2023-01-28 09:15:09,274 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 192 places, 195 transitions, 414 flow [2023-01-28 09:15:09,351 INFO L130 PetriNetUnfolder]: 13/192 cut-off events. [2023-01-28 09:15:09,352 INFO L131 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2023-01-28 09:15:09,357 INFO L83 FinitePrefix]: Finished finitePrefix Result has 205 conditions, 192 events. 13/192 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 367 event pairs, 0 based on Foata normal form. 0/178 useless extension candidates. Maximal degree in co-relation 132. Up to 2 conditions per place. [2023-01-28 09:15:09,358 INFO L82 GeneralOperation]: Start removeDead. Operand has 192 places, 195 transitions, 414 flow [2023-01-28 09:15:09,367 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 179 places, 182 transitions, 382 flow [2023-01-28 09:15:09,369 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-01-28 09:15:09,375 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 179 places, 182 transitions, 382 flow [2023-01-28 09:15:09,378 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 179 places, 182 transitions, 382 flow [2023-01-28 09:15:09,378 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 179 places, 182 transitions, 382 flow [2023-01-28 09:15:09,418 INFO L130 PetriNetUnfolder]: 13/182 cut-off events. [2023-01-28 09:15:09,418 INFO L131 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2023-01-28 09:15:09,422 INFO L83 FinitePrefix]: Finished finitePrefix Result has 195 conditions, 182 events. 13/182 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 366 event pairs, 0 based on Foata normal form. 0/169 useless extension candidates. Maximal degree in co-relation 132. Up to 2 conditions per place. [2023-01-28 09:15:09,426 INFO L119 LiptonReduction]: Number of co-enabled transitions 9384 [2023-01-28 09:15:13,982 INFO L134 LiptonReduction]: Checked pairs total: 8893 [2023-01-28 09:15:13,983 INFO L136 LiptonReduction]: Total number of compositions: 218 [2023-01-28 09:15:13,992 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-01-28 09:15:13,999 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@537b9f24, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-01-28 09:15:13,999 INFO L358 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2023-01-28 09:15:14,011 INFO L130 PetriNetUnfolder]: 0/15 cut-off events. [2023-01-28 09:15:14,011 INFO L131 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2023-01-28 09:15:14,011 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-28 09:15:14,012 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-01-28 09:15:14,013 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2023-01-28 09:15:14,016 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-28 09:15:14,016 INFO L85 PathProgramCache]: Analyzing trace with hash -1095596709, now seen corresponding path program 1 times [2023-01-28 09:15:14,025 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-28 09:15:14,025 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2095158730] [2023-01-28 09:15:14,026 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 09:15:14,026 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-28 09:15:14,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-28 09:15:14,797 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-01-28 09:15:14,798 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-28 09:15:14,798 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2095158730] [2023-01-28 09:15:14,798 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2095158730] provided 1 perfect and 0 imperfect interpolant sequences [2023-01-28 09:15:14,798 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-01-28 09:15:14,799 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-01-28 09:15:14,799 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [781045527] [2023-01-28 09:15:14,800 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-01-28 09:15:14,805 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-01-28 09:15:14,808 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-28 09:15:14,820 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-01-28 09:15:14,820 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-01-28 09:15:14,822 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 144 out of 413 [2023-01-28 09:15:14,824 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 26 places, 16 transitions, 50 flow. Second operand has 5 states, 5 states have (on average 147.2) internal successors, (736), 5 states have internal predecessors, (736), 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) [2023-01-28 09:15:14,824 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-01-28 09:15:14,824 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 144 of 413 [2023-01-28 09:15:14,825 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-01-28 09:15:14,957 INFO L130 PetriNetUnfolder]: 38/100 cut-off events. [2023-01-28 09:15:14,957 INFO L131 PetriNetUnfolder]: For 28/28 co-relation queries the response was YES. [2023-01-28 09:15:14,957 INFO L83 FinitePrefix]: Finished finitePrefix Result has 233 conditions, 100 events. 38/100 cut-off events. For 28/28 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 283 event pairs, 2 based on Foata normal form. 1/101 useless extension candidates. Maximal degree in co-relation 169. Up to 38 conditions per place. [2023-01-28 09:15:14,958 INFO L137 encePairwiseOnDemand]: 408/413 looper letters, 32 selfloop transitions, 6 changer transitions 7/45 dead transitions. [2023-01-28 09:15:14,958 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 31 places, 45 transitions, 228 flow [2023-01-28 09:15:14,959 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-01-28 09:15:14,961 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-01-28 09:15:14,968 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 910 transitions. [2023-01-28 09:15:14,971 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3672316384180791 [2023-01-28 09:15:14,971 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 910 transitions. [2023-01-28 09:15:14,971 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 910 transitions. [2023-01-28 09:15:14,973 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-01-28 09:15:14,974 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 910 transitions. [2023-01-28 09:15:14,978 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 151.66666666666666) internal successors, (910), 6 states have internal predecessors, (910), 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) [2023-01-28 09:15:14,983 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 413.0) internal successors, (2891), 7 states have internal predecessors, (2891), 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) [2023-01-28 09:15:14,984 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 413.0) internal successors, (2891), 7 states have internal predecessors, (2891), 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) [2023-01-28 09:15:14,986 INFO L175 Difference]: Start difference. First operand has 26 places, 16 transitions, 50 flow. Second operand 6 states and 910 transitions. [2023-01-28 09:15:14,986 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 31 places, 45 transitions, 228 flow [2023-01-28 09:15:14,988 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 25 places, 45 transitions, 196 flow, removed 0 selfloop flow, removed 6 redundant places. [2023-01-28 09:15:14,989 INFO L231 Difference]: Finished difference. Result has 28 places, 20 transitions, 71 flow [2023-01-28 09:15:14,990 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=413, PETRI_DIFFERENCE_MINUEND_FLOW=38, PETRI_DIFFERENCE_MINUEND_PLACES=20, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=16, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=12, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=71, PETRI_PLACES=28, PETRI_TRANSITIONS=20} [2023-01-28 09:15:14,992 INFO L281 CegarLoopForPetriNet]: 26 programPoint places, 2 predicate places. [2023-01-28 09:15:14,992 INFO L495 AbstractCegarLoop]: Abstraction has has 28 places, 20 transitions, 71 flow [2023-01-28 09:15:14,993 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 147.2) internal successors, (736), 5 states have internal predecessors, (736), 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) [2023-01-28 09:15:14,993 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-28 09:15:14,993 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-01-28 09:15:14,993 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-01-28 09:15:14,993 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2023-01-28 09:15:14,994 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-28 09:15:14,994 INFO L85 PathProgramCache]: Analyzing trace with hash -811696437, now seen corresponding path program 2 times [2023-01-28 09:15:14,994 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-28 09:15:14,994 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1450271106] [2023-01-28 09:15:14,994 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 09:15:14,994 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-28 09:15:15,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-28 09:15:15,341 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-01-28 09:15:15,342 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-28 09:15:15,343 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1450271106] [2023-01-28 09:15:15,343 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1450271106] provided 1 perfect and 0 imperfect interpolant sequences [2023-01-28 09:15:15,343 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-01-28 09:15:15,343 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-01-28 09:15:15,344 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2139093065] [2023-01-28 09:15:15,348 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-01-28 09:15:15,349 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-01-28 09:15:15,352 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-28 09:15:15,352 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-01-28 09:15:15,352 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-01-28 09:15:15,353 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 144 out of 413 [2023-01-28 09:15:15,354 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 28 places, 20 transitions, 71 flow. Second operand has 5 states, 5 states have (on average 147.2) internal successors, (736), 5 states have internal predecessors, (736), 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) [2023-01-28 09:15:15,354 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-01-28 09:15:15,354 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 144 of 413 [2023-01-28 09:15:15,354 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-01-28 09:15:15,508 INFO L130 PetriNetUnfolder]: 38/116 cut-off events. [2023-01-28 09:15:15,508 INFO L131 PetriNetUnfolder]: For 59/59 co-relation queries the response was YES. [2023-01-28 09:15:15,509 INFO L83 FinitePrefix]: Finished finitePrefix Result has 324 conditions, 116 events. 38/116 cut-off events. For 59/59 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 406 event pairs, 7 based on Foata normal form. 1/117 useless extension candidates. Maximal degree in co-relation 309. Up to 58 conditions per place. [2023-01-28 09:15:15,510 INFO L137 encePairwiseOnDemand]: 408/413 looper letters, 30 selfloop transitions, 7 changer transitions 10/47 dead transitions. [2023-01-28 09:15:15,510 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 32 places, 47 transitions, 242 flow [2023-01-28 09:15:15,510 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-01-28 09:15:15,510 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-01-28 09:15:15,512 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 909 transitions. [2023-01-28 09:15:15,513 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3668280871670702 [2023-01-28 09:15:15,513 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 909 transitions. [2023-01-28 09:15:15,513 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 909 transitions. [2023-01-28 09:15:15,513 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-01-28 09:15:15,513 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 909 transitions. [2023-01-28 09:15:15,515 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 151.5) internal successors, (909), 6 states have internal predecessors, (909), 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) [2023-01-28 09:15:15,518 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 413.0) internal successors, (2891), 7 states have internal predecessors, (2891), 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) [2023-01-28 09:15:15,519 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 413.0) internal successors, (2891), 7 states have internal predecessors, (2891), 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) [2023-01-28 09:15:15,519 INFO L175 Difference]: Start difference. First operand has 28 places, 20 transitions, 71 flow. Second operand 6 states and 909 transitions. [2023-01-28 09:15:15,519 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 32 places, 47 transitions, 242 flow [2023-01-28 09:15:15,520 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 31 places, 47 transitions, 238 flow, removed 2 selfloop flow, removed 1 redundant places. [2023-01-28 09:15:15,521 INFO L231 Difference]: Finished difference. Result has 33 places, 21 transitions, 94 flow [2023-01-28 09:15:15,521 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=413, PETRI_DIFFERENCE_MINUEND_FLOW=69, PETRI_DIFFERENCE_MINUEND_PLACES=26, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=20, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=14, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=94, PETRI_PLACES=33, PETRI_TRANSITIONS=21} [2023-01-28 09:15:15,521 INFO L281 CegarLoopForPetriNet]: 26 programPoint places, 7 predicate places. [2023-01-28 09:15:15,522 INFO L495 AbstractCegarLoop]: Abstraction has has 33 places, 21 transitions, 94 flow [2023-01-28 09:15:15,522 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 147.2) internal successors, (736), 5 states have internal predecessors, (736), 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) [2023-01-28 09:15:15,522 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-28 09:15:15,522 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-01-28 09:15:15,522 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-01-28 09:15:15,523 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2023-01-28 09:15:15,524 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-28 09:15:15,524 INFO L85 PathProgramCache]: Analyzing trace with hash 1130097597, now seen corresponding path program 3 times [2023-01-28 09:15:15,524 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-28 09:15:15,525 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1994037986] [2023-01-28 09:15:15,525 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 09:15:15,526 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-28 09:15:15,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-28 09:15:15,831 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-01-28 09:15:15,831 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-28 09:15:15,831 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1994037986] [2023-01-28 09:15:15,831 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1994037986] provided 1 perfect and 0 imperfect interpolant sequences [2023-01-28 09:15:15,831 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-01-28 09:15:15,832 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-01-28 09:15:15,832 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1031275981] [2023-01-28 09:15:15,832 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-01-28 09:15:15,832 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-01-28 09:15:15,832 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-28 09:15:15,833 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-01-28 09:15:15,833 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-01-28 09:15:15,833 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 144 out of 413 [2023-01-28 09:15:15,834 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 33 places, 21 transitions, 94 flow. Second operand has 5 states, 5 states have (on average 147.2) internal successors, (736), 5 states have internal predecessors, (736), 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) [2023-01-28 09:15:15,834 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-01-28 09:15:15,834 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 144 of 413 [2023-01-28 09:15:15,834 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-01-28 09:15:15,946 INFO L130 PetriNetUnfolder]: 32/98 cut-off events. [2023-01-28 09:15:15,946 INFO L131 PetriNetUnfolder]: For 124/124 co-relation queries the response was YES. [2023-01-28 09:15:15,946 INFO L83 FinitePrefix]: Finished finitePrefix Result has 322 conditions, 98 events. 32/98 cut-off events. For 124/124 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 305 event pairs, 2 based on Foata normal form. 1/99 useless extension candidates. Maximal degree in co-relation 308. Up to 46 conditions per place. [2023-01-28 09:15:15,946 INFO L137 encePairwiseOnDemand]: 408/413 looper letters, 27 selfloop transitions, 6 changer transitions 11/44 dead transitions. [2023-01-28 09:15:15,947 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 37 places, 44 transitions, 250 flow [2023-01-28 09:15:15,947 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-01-28 09:15:15,947 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-01-28 09:15:15,949 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 908 transitions. [2023-01-28 09:15:15,949 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.36642453591606133 [2023-01-28 09:15:15,949 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 908 transitions. [2023-01-28 09:15:15,949 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 908 transitions. [2023-01-28 09:15:15,950 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-01-28 09:15:15,950 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 908 transitions. [2023-01-28 09:15:15,951 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 151.33333333333334) internal successors, (908), 6 states have internal predecessors, (908), 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) [2023-01-28 09:15:15,954 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 413.0) internal successors, (2891), 7 states have internal predecessors, (2891), 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) [2023-01-28 09:15:15,955 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 413.0) internal successors, (2891), 7 states have internal predecessors, (2891), 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) [2023-01-28 09:15:15,955 INFO L175 Difference]: Start difference. First operand has 33 places, 21 transitions, 94 flow. Second operand 6 states and 908 transitions. [2023-01-28 09:15:15,955 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 37 places, 44 transitions, 250 flow [2023-01-28 09:15:15,956 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 35 places, 44 transitions, 235 flow, removed 7 selfloop flow, removed 2 redundant places. [2023-01-28 09:15:15,957 INFO L231 Difference]: Finished difference. Result has 37 places, 20 transitions, 98 flow [2023-01-28 09:15:15,957 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=413, PETRI_DIFFERENCE_MINUEND_FLOW=85, PETRI_DIFFERENCE_MINUEND_PLACES=30, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=21, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=15, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=98, PETRI_PLACES=37, PETRI_TRANSITIONS=20} [2023-01-28 09:15:15,958 INFO L281 CegarLoopForPetriNet]: 26 programPoint places, 11 predicate places. [2023-01-28 09:15:15,958 INFO L495 AbstractCegarLoop]: Abstraction has has 37 places, 20 transitions, 98 flow [2023-01-28 09:15:15,958 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 147.2) internal successors, (736), 5 states have internal predecessors, (736), 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) [2023-01-28 09:15:15,958 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-28 09:15:15,958 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-01-28 09:15:15,958 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-01-28 09:15:15,959 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2023-01-28 09:15:15,959 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-28 09:15:15,959 INFO L85 PathProgramCache]: Analyzing trace with hash -66993939, now seen corresponding path program 4 times [2023-01-28 09:15:15,959 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-28 09:15:15,959 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1206931638] [2023-01-28 09:15:15,959 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 09:15:15,959 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-28 09:15:15,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-28 09:15:16,253 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-01-28 09:15:16,254 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-28 09:15:16,254 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1206931638] [2023-01-28 09:15:16,254 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1206931638] provided 1 perfect and 0 imperfect interpolant sequences [2023-01-28 09:15:16,254 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-01-28 09:15:16,254 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-01-28 09:15:16,254 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1799576507] [2023-01-28 09:15:16,254 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-01-28 09:15:16,254 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-01-28 09:15:16,255 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-28 09:15:16,255 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-01-28 09:15:16,255 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-01-28 09:15:16,256 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 144 out of 413 [2023-01-28 09:15:16,256 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 37 places, 20 transitions, 98 flow. Second operand has 5 states, 5 states have (on average 147.2) internal successors, (736), 5 states have internal predecessors, (736), 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) [2023-01-28 09:15:16,256 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-01-28 09:15:16,256 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 144 of 413 [2023-01-28 09:15:16,256 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-01-28 09:15:16,364 INFO L130 PetriNetUnfolder]: 16/54 cut-off events. [2023-01-28 09:15:16,364 INFO L131 PetriNetUnfolder]: For 73/73 co-relation queries the response was YES. [2023-01-28 09:15:16,365 INFO L83 FinitePrefix]: Finished finitePrefix Result has 200 conditions, 54 events. 16/54 cut-off events. For 73/73 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 108 event pairs, 1 based on Foata normal form. 1/55 useless extension candidates. Maximal degree in co-relation 188. Up to 20 conditions per place. [2023-01-28 09:15:16,365 INFO L137 encePairwiseOnDemand]: 408/413 looper letters, 18 selfloop transitions, 4 changer transitions 10/32 dead transitions. [2023-01-28 09:15:16,365 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 40 places, 32 transitions, 191 flow [2023-01-28 09:15:16,365 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-01-28 09:15:16,365 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-01-28 09:15:16,367 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 895 transitions. [2023-01-28 09:15:16,367 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3611783696529459 [2023-01-28 09:15:16,367 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 895 transitions. [2023-01-28 09:15:16,367 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 895 transitions. [2023-01-28 09:15:16,368 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-01-28 09:15:16,368 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 895 transitions. [2023-01-28 09:15:16,369 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 149.16666666666666) internal successors, (895), 6 states have internal predecessors, (895), 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) [2023-01-28 09:15:16,372 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 413.0) internal successors, (2891), 7 states have internal predecessors, (2891), 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) [2023-01-28 09:15:16,372 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 413.0) internal successors, (2891), 7 states have internal predecessors, (2891), 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) [2023-01-28 09:15:16,372 INFO L175 Difference]: Start difference. First operand has 37 places, 20 transitions, 98 flow. Second operand 6 states and 895 transitions. [2023-01-28 09:15:16,372 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 40 places, 32 transitions, 191 flow [2023-01-28 09:15:16,373 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 34 places, 32 transitions, 170 flow, removed 3 selfloop flow, removed 6 redundant places. [2023-01-28 09:15:16,373 INFO L231 Difference]: Finished difference. Result has 35 places, 18 transitions, 73 flow [2023-01-28 09:15:16,374 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=413, PETRI_DIFFERENCE_MINUEND_FLOW=78, PETRI_DIFFERENCE_MINUEND_PLACES=29, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=20, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=16, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=73, PETRI_PLACES=35, PETRI_TRANSITIONS=18} [2023-01-28 09:15:16,374 INFO L281 CegarLoopForPetriNet]: 26 programPoint places, 9 predicate places. [2023-01-28 09:15:16,374 INFO L495 AbstractCegarLoop]: Abstraction has has 35 places, 18 transitions, 73 flow [2023-01-28 09:15:16,375 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 147.2) internal successors, (736), 5 states have internal predecessors, (736), 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) [2023-01-28 09:15:16,375 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-28 09:15:16,375 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-01-28 09:15:16,375 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-01-28 09:15:16,375 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2023-01-28 09:15:16,375 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-28 09:15:16,375 INFO L85 PathProgramCache]: Analyzing trace with hash 1595122479, now seen corresponding path program 5 times [2023-01-28 09:15:16,375 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-28 09:15:16,375 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [390299571] [2023-01-28 09:15:16,376 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 09:15:16,376 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-28 09:15:16,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-28 09:15:16,620 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-01-28 09:15:16,620 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-28 09:15:16,620 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [390299571] [2023-01-28 09:15:16,620 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [390299571] provided 1 perfect and 0 imperfect interpolant sequences [2023-01-28 09:15:16,620 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-01-28 09:15:16,621 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-01-28 09:15:16,621 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1513501994] [2023-01-28 09:15:16,621 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-01-28 09:15:16,621 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-01-28 09:15:16,621 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-28 09:15:16,621 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-01-28 09:15:16,621 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-01-28 09:15:16,622 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 144 out of 413 [2023-01-28 09:15:16,623 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 35 places, 18 transitions, 73 flow. Second operand has 5 states, 5 states have (on average 147.2) internal successors, (736), 5 states have internal predecessors, (736), 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) [2023-01-28 09:15:16,623 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-01-28 09:15:16,623 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 144 of 413 [2023-01-28 09:15:16,623 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-01-28 09:15:16,718 INFO L130 PetriNetUnfolder]: 8/40 cut-off events. [2023-01-28 09:15:16,718 INFO L131 PetriNetUnfolder]: For 27/27 co-relation queries the response was YES. [2023-01-28 09:15:16,719 INFO L83 FinitePrefix]: Finished finitePrefix Result has 135 conditions, 40 events. 8/40 cut-off events. For 27/27 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 60 event pairs, 0 based on Foata normal form. 1/41 useless extension candidates. Maximal degree in co-relation 124. Up to 19 conditions per place. [2023-01-28 09:15:16,719 INFO L137 encePairwiseOnDemand]: 408/413 looper letters, 15 selfloop transitions, 3 changer transitions 12/30 dead transitions. [2023-01-28 09:15:16,719 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 38 places, 30 transitions, 168 flow [2023-01-28 09:15:16,719 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-01-28 09:15:16,719 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-01-28 09:15:16,721 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 895 transitions. [2023-01-28 09:15:16,721 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3611783696529459 [2023-01-28 09:15:16,721 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 895 transitions. [2023-01-28 09:15:16,721 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 895 transitions. [2023-01-28 09:15:16,722 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-01-28 09:15:16,722 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 895 transitions. [2023-01-28 09:15:16,723 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 149.16666666666666) internal successors, (895), 6 states have internal predecessors, (895), 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) [2023-01-28 09:15:16,725 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 413.0) internal successors, (2891), 7 states have internal predecessors, (2891), 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) [2023-01-28 09:15:16,725 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 413.0) internal successors, (2891), 7 states have internal predecessors, (2891), 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) [2023-01-28 09:15:16,725 INFO L175 Difference]: Start difference. First operand has 35 places, 18 transitions, 73 flow. Second operand 6 states and 895 transitions. [2023-01-28 09:15:16,726 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 38 places, 30 transitions, 168 flow [2023-01-28 09:15:16,726 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 31 places, 30 transitions, 146 flow, removed 2 selfloop flow, removed 7 redundant places. [2023-01-28 09:15:16,726 INFO L231 Difference]: Finished difference. Result has 33 places, 16 transitions, 57 flow [2023-01-28 09:15:16,727 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=413, PETRI_DIFFERENCE_MINUEND_FLOW=55, PETRI_DIFFERENCE_MINUEND_PLACES=26, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=18, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=15, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=57, PETRI_PLACES=33, PETRI_TRANSITIONS=16} [2023-01-28 09:15:16,727 INFO L281 CegarLoopForPetriNet]: 26 programPoint places, 7 predicate places. [2023-01-28 09:15:16,727 INFO L495 AbstractCegarLoop]: Abstraction has has 33 places, 16 transitions, 57 flow [2023-01-28 09:15:16,727 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 147.2) internal successors, (736), 5 states have internal predecessors, (736), 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) [2023-01-28 09:15:16,728 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-28 09:15:16,728 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-01-28 09:15:16,728 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-01-28 09:15:16,728 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2023-01-28 09:15:16,728 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-28 09:15:16,728 INFO L85 PathProgramCache]: Analyzing trace with hash -1955142319, now seen corresponding path program 6 times [2023-01-28 09:15:16,728 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-28 09:15:16,728 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1278351968] [2023-01-28 09:15:16,728 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 09:15:16,728 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-28 09:15:16,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-28 09:15:17,032 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-01-28 09:15:17,033 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-28 09:15:17,033 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1278351968] [2023-01-28 09:15:17,033 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1278351968] provided 1 perfect and 0 imperfect interpolant sequences [2023-01-28 09:15:17,033 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-01-28 09:15:17,034 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-01-28 09:15:17,034 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [973271278] [2023-01-28 09:15:17,034 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-01-28 09:15:17,034 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-01-28 09:15:17,035 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-28 09:15:17,035 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-01-28 09:15:17,038 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-01-28 09:15:17,038 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 144 out of 413 [2023-01-28 09:15:17,039 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 33 places, 16 transitions, 57 flow. Second operand has 5 states, 5 states have (on average 147.2) internal successors, (736), 5 states have internal predecessors, (736), 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) [2023-01-28 09:15:17,039 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-01-28 09:15:17,039 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 144 of 413 [2023-01-28 09:15:17,039 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-01-28 09:15:17,127 INFO L130 PetriNetUnfolder]: 3/21 cut-off events. [2023-01-28 09:15:17,128 INFO L131 PetriNetUnfolder]: For 6/6 co-relation queries the response was YES. [2023-01-28 09:15:17,128 INFO L83 FinitePrefix]: Finished finitePrefix Result has 71 conditions, 21 events. 3/21 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 11 event pairs, 0 based on Foata normal form. 1/22 useless extension candidates. Maximal degree in co-relation 64. Up to 8 conditions per place. [2023-01-28 09:15:17,128 INFO L137 encePairwiseOnDemand]: 408/413 looper letters, 0 selfloop transitions, 0 changer transitions 18/18 dead transitions. [2023-01-28 09:15:17,128 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 35 places, 18 transitions, 95 flow [2023-01-28 09:15:17,128 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-01-28 09:15:17,128 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-01-28 09:15:17,130 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 883 transitions. [2023-01-28 09:15:17,130 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3563357546408394 [2023-01-28 09:15:17,130 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 883 transitions. [2023-01-28 09:15:17,130 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 883 transitions. [2023-01-28 09:15:17,131 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-01-28 09:15:17,131 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 883 transitions. [2023-01-28 09:15:17,132 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 147.16666666666666) internal successors, (883), 6 states have internal predecessors, (883), 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) [2023-01-28 09:15:17,134 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 413.0) internal successors, (2891), 7 states have internal predecessors, (2891), 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) [2023-01-28 09:15:17,135 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 413.0) internal successors, (2891), 7 states have internal predecessors, (2891), 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) [2023-01-28 09:15:17,135 INFO L175 Difference]: Start difference. First operand has 33 places, 16 transitions, 57 flow. Second operand 6 states and 883 transitions. [2023-01-28 09:15:17,135 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 35 places, 18 transitions, 95 flow [2023-01-28 09:15:17,136 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 29 places, 18 transitions, 82 flow, removed 2 selfloop flow, removed 6 redundant places. [2023-01-28 09:15:17,136 INFO L231 Difference]: Finished difference. Result has 29 places, 0 transitions, 0 flow [2023-01-28 09:15:17,136 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=413, PETRI_DIFFERENCE_MINUEND_FLOW=40, PETRI_DIFFERENCE_MINUEND_PLACES=24, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=15, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=15, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=0, PETRI_PLACES=29, PETRI_TRANSITIONS=0} [2023-01-28 09:15:17,138 INFO L281 CegarLoopForPetriNet]: 26 programPoint places, 3 predicate places. [2023-01-28 09:15:17,138 INFO L495 AbstractCegarLoop]: Abstraction has has 29 places, 0 transitions, 0 flow [2023-01-28 09:15:17,139 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 147.2) internal successors, (736), 5 states have internal predecessors, (736), 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) [2023-01-28 09:15:17,141 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (3 of 4 remaining) [2023-01-28 09:15:17,141 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 4 remaining) [2023-01-28 09:15:17,141 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 4 remaining) [2023-01-28 09:15:17,141 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 4 remaining) [2023-01-28 09:15:17,142 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-01-28 09:15:17,142 INFO L445 BasicCegarLoop]: Path program histogram: [6] [2023-01-28 09:15:17,143 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-01-28 09:15:17,143 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-01-28 09:15:17,146 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.01 09:15:17 BasicIcfg [2023-01-28 09:15:17,146 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-01-28 09:15:17,147 INFO L158 Benchmark]: Toolchain (without parser) took 8825.48ms. Allocated memory was 392.2MB in the beginning and 778.0MB in the end (delta: 385.9MB). Free memory was 329.9MB in the beginning and 630.2MB in the end (delta: -300.2MB). Peak memory consumption was 86.4MB. Max. memory is 16.0GB. [2023-01-28 09:15:17,148 INFO L158 Benchmark]: CDTParser took 0.08ms. Allocated memory is still 392.2MB. Free memory is still 340.8MB. There was no memory consumed. Max. memory is 16.0GB. [2023-01-28 09:15:17,151 INFO L158 Benchmark]: CACSL2BoogieTranslator took 229.02ms. Allocated memory is still 392.2MB. Free memory was 329.9MB in the beginning and 318.7MB in the end (delta: 11.2MB). Peak memory consumption was 10.5MB. Max. memory is 16.0GB. [2023-01-28 09:15:17,151 INFO L158 Benchmark]: Boogie Procedure Inliner took 39.64ms. Allocated memory is still 392.2MB. Free memory was 318.7MB in the beginning and 316.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-01-28 09:15:17,151 INFO L158 Benchmark]: Boogie Preprocessor took 27.98ms. Allocated memory is still 392.2MB. Free memory was 316.6MB in the beginning and 315.0MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-01-28 09:15:17,151 INFO L158 Benchmark]: RCFGBuilder took 501.54ms. Allocated memory was 392.2MB in the beginning and 633.3MB in the end (delta: 241.2MB). Free memory was 315.0MB in the beginning and 588.9MB in the end (delta: -273.8MB). Peak memory consumption was 15.1MB. Max. memory is 16.0GB. [2023-01-28 09:15:17,152 INFO L158 Benchmark]: TraceAbstraction took 8021.12ms. Allocated memory was 633.3MB in the beginning and 778.0MB in the end (delta: 144.7MB). Free memory was 587.2MB in the beginning and 630.2MB in the end (delta: -43.0MB). Peak memory consumption was 100.7MB. Max. memory is 16.0GB. [2023-01-28 09:15:17,153 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.08ms. Allocated memory is still 392.2MB. Free memory is still 340.8MB. There was no memory consumed. Max. memory is 16.0GB. * CACSL2BoogieTranslator took 229.02ms. Allocated memory is still 392.2MB. Free memory was 329.9MB in the beginning and 318.7MB in the end (delta: 11.2MB). Peak memory consumption was 10.5MB. Max. memory is 16.0GB. * Boogie Procedure Inliner took 39.64ms. Allocated memory is still 392.2MB. Free memory was 318.7MB in the beginning and 316.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * Boogie Preprocessor took 27.98ms. Allocated memory is still 392.2MB. Free memory was 316.6MB in the beginning and 315.0MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * RCFGBuilder took 501.54ms. Allocated memory was 392.2MB in the beginning and 633.3MB in the end (delta: 241.2MB). Free memory was 315.0MB in the beginning and 588.9MB in the end (delta: -273.8MB). Peak memory consumption was 15.1MB. Max. memory is 16.0GB. * TraceAbstraction took 8021.12ms. Allocated memory was 633.3MB in the beginning and 778.0MB in the end (delta: 144.7MB). Free memory was 587.2MB in the beginning and 630.2MB in the end (delta: -43.0MB). Peak memory consumption was 100.7MB. Max. memory is 16.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 4.6s, 179 PlacesBefore, 26 PlacesAfterwards, 182 TransitionsBefore, 16 TransitionsAfterwards, 9384 CoEnabledTransitionPairs, 7 FixpointIterations, 56 TrivialSequentialCompositions, 94 ConcurrentSequentialCompositions, 3 TrivialYvCompositions, 52 ConcurrentYvCompositions, 13 ChoiceCompositions, 218 TotalNumberOfCompositions, 8893 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 8893, independent: 8893, independent conditional: 0, independent unconditional: 8893, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 5948, independent: 5948, independent conditional: 0, independent unconditional: 5948, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 8893, independent: 2945, independent conditional: 0, independent unconditional: 2945, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 5948, unknown conditional: 0, unknown unconditional: 5948] , Statistics on independence cache: Total cache size (in pairs): 18, Positive cache size: 18, Positive conditional cache size: 0, Positive unconditional cache size: 18, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - PositiveResult [Line: 80]: 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 7 procedures, 279 locations, 4 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 7.9s, OverallIterations: 6, TraceHistogramMax: 1, PathProgramHistogramMax: 6, EmptinessCheckTime: 0.0s, AutomataDifference: 0.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 4.7s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 188 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 188 mSDsluCounter, 0 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 9 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 413 IncrementalHoareTripleChecker+Invalid, 422 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 9 mSolverCounterUnsat, 0 mSDtfsCounter, 413 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 51 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=98occurred in iteration=3, InterpolantAutomatonStates: 36, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 2.0s InterpolantComputationTime, 96 NumberOfCodeBlocks, 96 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 90 ConstructedInterpolants, 0 QuantifiedInterpolants, 972 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 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! [2023-01-28 09:15:17,171 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...