/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-subst.wvr.c -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-b8dbc81 [2023-01-28 09:14:47,873 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-01-28 09:14:47,875 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-01-28 09:14:47,904 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-01-28 09:14:47,904 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-01-28 09:14:47,906 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-01-28 09:14:47,909 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-01-28 09:14:47,911 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-01-28 09:14:47,912 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-01-28 09:14:47,916 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-01-28 09:14:47,917 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-01-28 09:14:47,918 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-01-28 09:14:47,918 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-01-28 09:14:47,920 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-01-28 09:14:47,921 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-01-28 09:14:47,921 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-01-28 09:14:47,922 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-01-28 09:14:47,922 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-01-28 09:14:47,923 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-01-28 09:14:47,927 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-01-28 09:14:47,927 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-01-28 09:14:47,928 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-01-28 09:14:47,929 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-01-28 09:14:47,930 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-01-28 09:14:47,935 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-01-28 09:14:47,935 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-01-28 09:14:47,935 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-01-28 09:14:47,936 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-01-28 09:14:47,937 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-01-28 09:14:47,937 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-01-28 09:14:47,937 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-01-28 09:14:47,938 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-01-28 09:14:47,938 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-01-28 09:14:47,939 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-01-28 09:14:47,939 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-01-28 09:14:47,939 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-01-28 09:14:47,940 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-01-28 09:14:47,940 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-01-28 09:14:47,940 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-01-28 09:14:47,940 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-01-28 09:14:47,941 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-01-28 09:14:47,942 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 09:14:47,961 INFO L113 SettingsManager]: Loading preferences was successful [2023-01-28 09:14:47,961 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-01-28 09:14:47,962 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-01-28 09:14:47,962 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-01-28 09:14:47,963 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-01-28 09:14:47,963 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-01-28 09:14:47,963 INFO L138 SettingsManager]: * Use SBE=true [2023-01-28 09:14:47,963 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-01-28 09:14:47,963 INFO L138 SettingsManager]: * sizeof long=4 [2023-01-28 09:14:47,963 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-01-28 09:14:47,964 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-01-28 09:14:47,964 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-01-28 09:14:47,964 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-01-28 09:14:47,964 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-01-28 09:14:47,964 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-01-28 09:14:47,964 INFO L138 SettingsManager]: * sizeof long double=12 [2023-01-28 09:14:47,964 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-01-28 09:14:47,964 INFO L138 SettingsManager]: * Use constant arrays=true [2023-01-28 09:14:47,964 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-01-28 09:14:47,965 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-01-28 09:14:47,965 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-01-28 09:14:47,965 INFO L138 SettingsManager]: * To the following directory=./dump/ [2023-01-28 09:14:47,965 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-01-28 09:14:47,965 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-01-28 09:14:47,965 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-01-28 09:14:47,965 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-01-28 09:14:47,965 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-01-28 09:14:47,965 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-01-28 09:14:47,965 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-01-28 09:14:47,965 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-01-28 09:14:47,965 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-01-28 09:14:47,966 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: When to check the insufficient erros location relative to the other error locations -> AFTER [2023-01-28 09:14:48,155 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-01-28 09:14:48,175 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-01-28 09:14:48,177 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-01-28 09:14:48,177 INFO L271 PluginConnector]: Initializing CDTParser... [2023-01-28 09:14:48,181 INFO L275 PluginConnector]: CDTParser initialized [2023-01-28 09:14:48,181 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/chl-simpl-str-subst.wvr.c [2023-01-28 09:14:49,241 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-01-28 09:14:49,345 INFO L351 CDTParser]: Found 1 translation units. [2023-01-28 09:14:49,346 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/chl-simpl-str-subst.wvr.c [2023-01-28 09:14:49,350 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dd470675f/75bdb8bf297f44db91302dcb2da7dc6c/FLAG5eda6aad4 [2023-01-28 09:14:49,365 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dd470675f/75bdb8bf297f44db91302dcb2da7dc6c [2023-01-28 09:14:49,367 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-01-28 09:14:49,368 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2023-01-28 09:14:49,368 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-01-28 09:14:49,368 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-01-28 09:14:49,373 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-01-28 09:14:49,373 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.01 09:14:49" (1/1) ... [2023-01-28 09:14:49,374 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2ba045f8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 09:14:49, skipping insertion in model container [2023-01-28 09:14:49,374 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.01 09:14:49" (1/1) ... [2023-01-28 09:14:49,378 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-01-28 09:14:49,392 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-01-28 09:14:49,526 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-subst.wvr.c[2575,2588] [2023-01-28 09:14:49,530 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-01-28 09:14:49,536 INFO L203 MainTranslator]: Completed pre-run [2023-01-28 09:14:49,549 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-subst.wvr.c[2575,2588] [2023-01-28 09:14:49,551 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-01-28 09:14:49,559 INFO L208 MainTranslator]: Completed translation [2023-01-28 09:14:49,560 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 09:14:49 WrapperNode [2023-01-28 09:14:49,560 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-01-28 09:14:49,561 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-01-28 09:14:49,561 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-01-28 09:14:49,561 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-01-28 09:14:49,565 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 09:14:49" (1/1) ... [2023-01-28 09:14:49,570 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 09:14:49" (1/1) ... [2023-01-28 09:14:49,590 INFO L138 Inliner]: procedures = 23, calls = 31, calls flagged for inlining = 9, calls inlined = 13, statements flattened = 173 [2023-01-28 09:14:49,590 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-01-28 09:14:49,591 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-01-28 09:14:49,591 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-01-28 09:14:49,591 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-01-28 09:14:49,597 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 09:14:49" (1/1) ... [2023-01-28 09:14:49,597 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 09:14:49" (1/1) ... [2023-01-28 09:14:49,600 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 09:14:49" (1/1) ... [2023-01-28 09:14:49,600 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 09:14:49" (1/1) ... [2023-01-28 09:14:49,604 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 09:14:49" (1/1) ... [2023-01-28 09:14:49,605 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 09:14:49" (1/1) ... [2023-01-28 09:14:49,606 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 09:14:49" (1/1) ... [2023-01-28 09:14:49,607 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 09:14:49" (1/1) ... [2023-01-28 09:14:49,611 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-01-28 09:14:49,612 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-01-28 09:14:49,617 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-01-28 09:14:49,617 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-01-28 09:14:49,618 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 09:14:49" (1/1) ... [2023-01-28 09:14:49,639 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-01-28 09:14:49,647 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-01-28 09:14:49,658 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 09:14:49,680 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 09:14:49,699 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-01-28 09:14:49,699 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2023-01-28 09:14:49,699 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2023-01-28 09:14:49,699 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2023-01-28 09:14:49,699 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2023-01-28 09:14:49,700 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2023-01-28 09:14:49,700 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2023-01-28 09:14:49,700 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-01-28 09:14:49,700 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-01-28 09:14:49,700 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-01-28 09:14:49,700 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-01-28 09:14:49,700 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-01-28 09:14:49,700 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-01-28 09:14:49,700 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-01-28 09:14:49,701 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 09:14:49,794 INFO L236 CfgBuilder]: Building ICFG [2023-01-28 09:14:49,795 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-01-28 09:14:50,015 INFO L277 CfgBuilder]: Performing block encoding [2023-01-28 09:14:50,022 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-01-28 09:14:50,022 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-01-28 09:14:50,023 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.01 09:14:50 BoogieIcfgContainer [2023-01-28 09:14:50,024 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-01-28 09:14:50,025 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-01-28 09:14:50,026 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-01-28 09:14:50,028 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-01-28 09:14:50,028 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.01 09:14:49" (1/3) ... [2023-01-28 09:14:50,029 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3d56e004 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.01 09:14:50, skipping insertion in model container [2023-01-28 09:14:50,029 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 09:14:49" (2/3) ... [2023-01-28 09:14:50,029 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3d56e004 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.01 09:14:50, skipping insertion in model container [2023-01-28 09:14:50,029 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.01 09:14:50" (3/3) ... [2023-01-28 09:14:50,030 INFO L112 eAbstractionObserver]: Analyzing ICFG chl-simpl-str-subst.wvr.c [2023-01-28 09:14:50,042 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-01-28 09:14:50,043 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-01-28 09:14:50,043 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-01-28 09:14:50,124 INFO L144 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2023-01-28 09:14:50,164 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 197 places, 201 transitions, 426 flow [2023-01-28 09:14:50,235 INFO L130 PetriNetUnfolder]: 14/198 cut-off events. [2023-01-28 09:14:50,236 INFO L131 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2023-01-28 09:14:50,241 INFO L83 FinitePrefix]: Finished finitePrefix Result has 211 conditions, 198 events. 14/198 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. 0/183 useless extension candidates. Maximal degree in co-relation 132. Up to 2 conditions per place. [2023-01-28 09:14:50,241 INFO L82 GeneralOperation]: Start removeDead. Operand has 197 places, 201 transitions, 426 flow [2023-01-28 09:14:50,253 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 184 places, 188 transitions, 394 flow [2023-01-28 09:14:50,255 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-01-28 09:14:50,264 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 184 places, 188 transitions, 394 flow [2023-01-28 09:14:50,268 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 184 places, 188 transitions, 394 flow [2023-01-28 09:14:50,268 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 184 places, 188 transitions, 394 flow [2023-01-28 09:14:50,302 INFO L130 PetriNetUnfolder]: 14/188 cut-off events. [2023-01-28 09:14:50,302 INFO L131 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2023-01-28 09:14:50,303 INFO L83 FinitePrefix]: Finished finitePrefix Result has 201 conditions, 188 events. 14/188 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. 0/174 useless extension candidates. Maximal degree in co-relation 132. Up to 2 conditions per place. [2023-01-28 09:14:50,307 INFO L119 LiptonReduction]: Number of co-enabled transitions 9384 [2023-01-28 09:14:54,895 INFO L134 LiptonReduction]: Checked pairs total: 8713 [2023-01-28 09:14:54,895 INFO L136 LiptonReduction]: Total number of compositions: 220 [2023-01-28 09:14:54,908 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-01-28 09:14:54,913 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;@2382e717, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-01-28 09:14:54,914 INFO L358 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2023-01-28 09:14:54,920 INFO L130 PetriNetUnfolder]: 0/15 cut-off events. [2023-01-28 09:14:54,920 INFO L131 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2023-01-28 09:14:54,920 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-28 09:14:54,921 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-01-28 09:14:54,921 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 09:14:54,925 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-28 09:14:54,925 INFO L85 PathProgramCache]: Analyzing trace with hash 1579697146, now seen corresponding path program 1 times [2023-01-28 09:14:54,931 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-28 09:14:54,932 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [774022533] [2023-01-28 09:14:54,932 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 09:14:54,932 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-28 09:14:55,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-28 09:14:56,208 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 09:14:56,209 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-28 09:14:56,209 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [774022533] [2023-01-28 09:14:56,209 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [774022533] provided 1 perfect and 0 imperfect interpolant sequences [2023-01-28 09:14:56,210 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-01-28 09:14:56,210 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-01-28 09:14:56,211 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1651866175] [2023-01-28 09:14:56,211 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-01-28 09:14:56,216 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-01-28 09:14:56,219 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-28 09:14:56,246 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-01-28 09:14:56,247 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-01-28 09:14:56,250 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 148 out of 421 [2023-01-28 09:14:56,253 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 26 places, 16 transitions, 50 flow. Second operand has 5 states, 5 states have (on average 151.2) internal successors, (756), 5 states have internal predecessors, (756), 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 09:14:56,254 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-01-28 09:14:56,254 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 148 of 421 [2023-01-28 09:14:56,254 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-01-28 09:14:56,643 INFO L130 PetriNetUnfolder]: 38/100 cut-off events. [2023-01-28 09:14:56,643 INFO L131 PetriNetUnfolder]: For 28/28 co-relation queries the response was YES. [2023-01-28 09:14:56,644 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 09:14:56,646 INFO L137 encePairwiseOnDemand]: 416/421 looper letters, 32 selfloop transitions, 6 changer transitions 7/45 dead transitions. [2023-01-28 09:14:56,646 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 31 places, 45 transitions, 228 flow [2023-01-28 09:14:56,647 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-01-28 09:14:56,648 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-01-28 09:14:56,658 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 934 transitions. [2023-01-28 09:14:56,661 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.36975455265241486 [2023-01-28 09:14:56,662 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 934 transitions. [2023-01-28 09:14:56,662 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 934 transitions. [2023-01-28 09:14:56,664 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-01-28 09:14:56,666 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 934 transitions. [2023-01-28 09:14:56,670 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 155.66666666666666) internal successors, (934), 6 states have internal predecessors, (934), 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 09:14:56,676 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 421.0) internal successors, (2947), 7 states have internal predecessors, (2947), 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 09:14:56,677 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 421.0) internal successors, (2947), 7 states have internal predecessors, (2947), 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 09:14:56,678 INFO L175 Difference]: Start difference. First operand has 26 places, 16 transitions, 50 flow. Second operand 6 states and 934 transitions. [2023-01-28 09:14:56,678 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 31 places, 45 transitions, 228 flow [2023-01-28 09:14:56,681 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 09:14:56,682 INFO L231 Difference]: Finished difference. Result has 28 places, 20 transitions, 71 flow [2023-01-28 09:14:56,683 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=421, 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 09:14:56,686 INFO L281 CegarLoopForPetriNet]: 26 programPoint places, 2 predicate places. [2023-01-28 09:14:56,686 INFO L495 AbstractCegarLoop]: Abstraction has has 28 places, 20 transitions, 71 flow [2023-01-28 09:14:56,687 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 151.2) internal successors, (756), 5 states have internal predecessors, (756), 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 09:14:56,687 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-28 09:14:56,687 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-01-28 09:14:56,688 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-01-28 09:14:56,690 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 09:14:56,690 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-28 09:14:56,690 INFO L85 PathProgramCache]: Analyzing trace with hash -65087284, now seen corresponding path program 2 times [2023-01-28 09:14:56,691 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-28 09:14:56,691 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1200952784] [2023-01-28 09:14:56,691 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 09:14:56,691 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-28 09:14:56,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-28 09:14:57,248 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 09:14:57,248 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-28 09:14:57,248 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1200952784] [2023-01-28 09:14:57,248 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1200952784] provided 1 perfect and 0 imperfect interpolant sequences [2023-01-28 09:14:57,248 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-01-28 09:14:57,248 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-01-28 09:14:57,249 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [18748910] [2023-01-28 09:14:57,249 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-01-28 09:14:57,249 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-01-28 09:14:57,250 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-28 09:14:57,250 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-01-28 09:14:57,250 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-01-28 09:14:57,251 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 148 out of 421 [2023-01-28 09:14:57,251 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 28 places, 20 transitions, 71 flow. Second operand has 5 states, 5 states have (on average 151.2) internal successors, (756), 5 states have internal predecessors, (756), 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 09:14:57,251 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-01-28 09:14:57,252 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 148 of 421 [2023-01-28 09:14:57,252 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-01-28 09:14:57,491 INFO L130 PetriNetUnfolder]: 38/116 cut-off events. [2023-01-28 09:14:57,491 INFO L131 PetriNetUnfolder]: For 55/55 co-relation queries the response was YES. [2023-01-28 09:14:57,491 INFO L83 FinitePrefix]: Finished finitePrefix Result has 324 conditions, 116 events. 38/116 cut-off events. For 55/55 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 413 event pairs, 6 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 09:14:57,492 INFO L137 encePairwiseOnDemand]: 416/421 looper letters, 30 selfloop transitions, 7 changer transitions 9/46 dead transitions. [2023-01-28 09:14:57,492 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 32 places, 46 transitions, 235 flow [2023-01-28 09:14:57,492 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-01-28 09:14:57,492 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-01-28 09:14:57,494 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 934 transitions. [2023-01-28 09:14:57,494 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.36975455265241486 [2023-01-28 09:14:57,494 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 934 transitions. [2023-01-28 09:14:57,494 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 934 transitions. [2023-01-28 09:14:57,494 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-01-28 09:14:57,495 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 934 transitions. [2023-01-28 09:14:57,496 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 155.66666666666666) internal successors, (934), 6 states have internal predecessors, (934), 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 09:14:57,499 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 421.0) internal successors, (2947), 7 states have internal predecessors, (2947), 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 09:14:57,500 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 421.0) internal successors, (2947), 7 states have internal predecessors, (2947), 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 09:14:57,500 INFO L175 Difference]: Start difference. First operand has 28 places, 20 transitions, 71 flow. Second operand 6 states and 934 transitions. [2023-01-28 09:14:57,500 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 32 places, 46 transitions, 235 flow [2023-01-28 09:14:57,500 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 31 places, 46 transitions, 231 flow, removed 2 selfloop flow, removed 1 redundant places. [2023-01-28 09:14:57,501 INFO L231 Difference]: Finished difference. Result has 34 places, 21 transitions, 100 flow [2023-01-28 09:14:57,501 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=421, 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=13, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=100, PETRI_PLACES=34, PETRI_TRANSITIONS=21} [2023-01-28 09:14:57,502 INFO L281 CegarLoopForPetriNet]: 26 programPoint places, 8 predicate places. [2023-01-28 09:14:57,502 INFO L495 AbstractCegarLoop]: Abstraction has has 34 places, 21 transitions, 100 flow [2023-01-28 09:14:57,502 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 151.2) internal successors, (756), 5 states have internal predecessors, (756), 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 09:14:57,502 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-28 09:14:57,502 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-01-28 09:14:57,502 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-01-28 09:14:57,503 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 09:14:57,503 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-28 09:14:57,503 INFO L85 PathProgramCache]: Analyzing trace with hash 255126654, now seen corresponding path program 3 times [2023-01-28 09:14:57,503 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-28 09:14:57,503 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1478592043] [2023-01-28 09:14:57,503 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 09:14:57,503 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-28 09:14:57,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-28 09:14:58,287 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 09:14:58,288 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-28 09:14:58,288 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1478592043] [2023-01-28 09:14:58,288 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1478592043] provided 1 perfect and 0 imperfect interpolant sequences [2023-01-28 09:14:58,288 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-01-28 09:14:58,288 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-01-28 09:14:58,288 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1421908320] [2023-01-28 09:14:58,288 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-01-28 09:14:58,289 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-01-28 09:14:58,289 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-28 09:14:58,289 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-01-28 09:14:58,289 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-01-28 09:14:58,290 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 148 out of 421 [2023-01-28 09:14:58,290 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 34 places, 21 transitions, 100 flow. Second operand has 5 states, 5 states have (on average 151.2) internal successors, (756), 5 states have internal predecessors, (756), 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 09:14:58,291 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-01-28 09:14:58,291 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 148 of 421 [2023-01-28 09:14:58,291 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-01-28 09:14:58,465 INFO L130 PetriNetUnfolder]: 33/103 cut-off events. [2023-01-28 09:14:58,465 INFO L131 PetriNetUnfolder]: For 160/160 co-relation queries the response was YES. [2023-01-28 09:14:58,466 INFO L83 FinitePrefix]: Finished finitePrefix Result has 349 conditions, 103 events. 33/103 cut-off events. For 160/160 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 337 event pairs, 2 based on Foata normal form. 1/104 useless extension candidates. Maximal degree in co-relation 334. Up to 51 conditions per place. [2023-01-28 09:14:58,466 INFO L137 encePairwiseOnDemand]: 416/421 looper letters, 27 selfloop transitions, 6 changer transitions 11/44 dead transitions. [2023-01-28 09:14:58,466 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 38 places, 44 transitions, 257 flow [2023-01-28 09:14:58,467 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-01-28 09:14:58,467 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-01-28 09:14:58,468 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 932 transitions. [2023-01-28 09:14:58,468 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.36896278701504354 [2023-01-28 09:14:58,469 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 932 transitions. [2023-01-28 09:14:58,469 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 932 transitions. [2023-01-28 09:14:58,469 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-01-28 09:14:58,469 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 932 transitions. [2023-01-28 09:14:58,470 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 155.33333333333334) internal successors, (932), 6 states have internal predecessors, (932), 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 09:14:58,473 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 421.0) internal successors, (2947), 7 states have internal predecessors, (2947), 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 09:14:58,474 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 421.0) internal successors, (2947), 7 states have internal predecessors, (2947), 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 09:14:58,474 INFO L175 Difference]: Start difference. First operand has 34 places, 21 transitions, 100 flow. Second operand 6 states and 932 transitions. [2023-01-28 09:14:58,474 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 38 places, 44 transitions, 257 flow [2023-01-28 09:14:58,475 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 36 places, 44 transitions, 243 flow, removed 5 selfloop flow, removed 2 redundant places. [2023-01-28 09:14:58,476 INFO L231 Difference]: Finished difference. Result has 38 places, 20 transitions, 100 flow [2023-01-28 09:14:58,476 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=421, PETRI_DIFFERENCE_MINUEND_FLOW=90, PETRI_DIFFERENCE_MINUEND_PLACES=31, 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=100, PETRI_PLACES=38, PETRI_TRANSITIONS=20} [2023-01-28 09:14:58,476 INFO L281 CegarLoopForPetriNet]: 26 programPoint places, 12 predicate places. [2023-01-28 09:14:58,477 INFO L495 AbstractCegarLoop]: Abstraction has has 38 places, 20 transitions, 100 flow [2023-01-28 09:14:58,477 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 151.2) internal successors, (756), 5 states have internal predecessors, (756), 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 09:14:58,477 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-28 09:14:58,477 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-01-28 09:14:58,477 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-01-28 09:14:58,477 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 09:14:58,478 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-28 09:14:58,478 INFO L85 PathProgramCache]: Analyzing trace with hash 1251070020, now seen corresponding path program 4 times [2023-01-28 09:14:58,478 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-28 09:14:58,478 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1497618582] [2023-01-28 09:14:58,478 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 09:14:58,478 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-28 09:14:58,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-28 09:14:59,095 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 09:14:59,095 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-28 09:14:59,095 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1497618582] [2023-01-28 09:14:59,095 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1497618582] provided 1 perfect and 0 imperfect interpolant sequences [2023-01-28 09:14:59,096 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-01-28 09:14:59,096 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-01-28 09:14:59,096 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [179083290] [2023-01-28 09:14:59,096 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-01-28 09:14:59,097 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-01-28 09:14:59,098 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-28 09:14:59,098 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-01-28 09:14:59,099 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-01-28 09:14:59,099 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 148 out of 421 [2023-01-28 09:14:59,100 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 38 places, 20 transitions, 100 flow. Second operand has 5 states, 5 states have (on average 151.2) internal successors, (756), 5 states have internal predecessors, (756), 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 09:14:59,100 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-01-28 09:14:59,100 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 148 of 421 [2023-01-28 09:14:59,100 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-01-28 09:14:59,357 INFO L130 PetriNetUnfolder]: 17/59 cut-off events. [2023-01-28 09:14:59,357 INFO L131 PetriNetUnfolder]: For 94/94 co-relation queries the response was YES. [2023-01-28 09:14:59,357 INFO L83 FinitePrefix]: Finished finitePrefix Result has 219 conditions, 59 events. 17/59 cut-off events. For 94/94 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 136 event pairs, 0 based on Foata normal form. 1/60 useless extension candidates. Maximal degree in co-relation 205. Up to 20 conditions per place. [2023-01-28 09:14:59,357 INFO L137 encePairwiseOnDemand]: 416/421 looper letters, 18 selfloop transitions, 5 changer transitions 13/36 dead transitions. [2023-01-28 09:14:59,357 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 41 places, 36 transitions, 219 flow [2023-01-28 09:14:59,358 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-01-28 09:14:59,358 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-01-28 09:14:59,359 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 924 transitions. [2023-01-28 09:14:59,360 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3657957244655582 [2023-01-28 09:14:59,360 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 924 transitions. [2023-01-28 09:14:59,360 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 924 transitions. [2023-01-28 09:14:59,360 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-01-28 09:14:59,360 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 924 transitions. [2023-01-28 09:14:59,362 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 154.0) internal successors, (924), 6 states have internal predecessors, (924), 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 09:14:59,364 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 421.0) internal successors, (2947), 7 states have internal predecessors, (2947), 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 09:14:59,364 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 421.0) internal successors, (2947), 7 states have internal predecessors, (2947), 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 09:14:59,364 INFO L175 Difference]: Start difference. First operand has 38 places, 20 transitions, 100 flow. Second operand 6 states and 924 transitions. [2023-01-28 09:14:59,364 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 41 places, 36 transitions, 219 flow [2023-01-28 09:14:59,365 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 36 places, 36 transitions, 202 flow, removed 3 selfloop flow, removed 5 redundant places. [2023-01-28 09:14:59,366 INFO L231 Difference]: Finished difference. Result has 37 places, 18 transitions, 81 flow [2023-01-28 09:14:59,366 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=421, PETRI_DIFFERENCE_MINUEND_FLOW=85, PETRI_DIFFERENCE_MINUEND_PLACES=31, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=20, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=15, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=81, PETRI_PLACES=37, PETRI_TRANSITIONS=18} [2023-01-28 09:14:59,366 INFO L281 CegarLoopForPetriNet]: 26 programPoint places, 11 predicate places. [2023-01-28 09:14:59,366 INFO L495 AbstractCegarLoop]: Abstraction has has 37 places, 18 transitions, 81 flow [2023-01-28 09:14:59,367 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 151.2) internal successors, (756), 5 states have internal predecessors, (756), 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 09:14:59,367 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-28 09:14:59,367 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-01-28 09:14:59,367 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-01-28 09:14:59,367 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 09:14:59,367 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-28 09:14:59,367 INFO L85 PathProgramCache]: Analyzing trace with hash -1460522632, now seen corresponding path program 5 times [2023-01-28 09:14:59,368 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-28 09:14:59,368 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1487641786] [2023-01-28 09:14:59,368 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 09:14:59,368 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-28 09:14:59,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-28 09:15:00,006 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 09:15:00,007 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-28 09:15:00,007 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1487641786] [2023-01-28 09:15:00,007 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1487641786] provided 1 perfect and 0 imperfect interpolant sequences [2023-01-28 09:15:00,007 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-01-28 09:15:00,007 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-01-28 09:15:00,007 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [42339740] [2023-01-28 09:15:00,007 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-01-28 09:15:00,007 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-01-28 09:15:00,008 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-28 09:15:00,008 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-01-28 09:15:00,008 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-01-28 09:15:00,008 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 143 out of 421 [2023-01-28 09:15:00,009 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 37 places, 18 transitions, 81 flow. Second operand has 6 states, 6 states have (on average 145.66666666666666) internal successors, (874), 6 states have internal predecessors, (874), 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 09:15:00,009 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-01-28 09:15:00,009 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 143 of 421 [2023-01-28 09:15:00,009 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-01-28 09:15:00,242 INFO L130 PetriNetUnfolder]: 8/40 cut-off events. [2023-01-28 09:15:00,243 INFO L131 PetriNetUnfolder]: For 42/42 co-relation queries the response was YES. [2023-01-28 09:15:00,243 INFO L83 FinitePrefix]: Finished finitePrefix Result has 146 conditions, 40 events. 8/40 cut-off events. For 42/42 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 58 event pairs, 0 based on Foata normal form. 1/41 useless extension candidates. Maximal degree in co-relation 134. Up to 19 conditions per place. [2023-01-28 09:15:00,243 INFO L137 encePairwiseOnDemand]: 416/421 looper letters, 15 selfloop transitions, 3 changer transitions 12/30 dead transitions. [2023-01-28 09:15:00,243 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 41 places, 30 transitions, 178 flow [2023-01-28 09:15:00,244 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-01-28 09:15:00,244 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2023-01-28 09:15:00,245 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 1032 transitions. [2023-01-28 09:15:00,245 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3501866304716661 [2023-01-28 09:15:00,246 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 1032 transitions. [2023-01-28 09:15:00,246 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 1032 transitions. [2023-01-28 09:15:00,246 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-01-28 09:15:00,246 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 1032 transitions. [2023-01-28 09:15:00,247 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 147.42857142857142) internal successors, (1032), 7 states have internal predecessors, (1032), 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 09:15:00,250 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 421.0) internal successors, (3368), 8 states have internal predecessors, (3368), 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 09:15:00,250 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 421.0) internal successors, (3368), 8 states have internal predecessors, (3368), 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 09:15:00,250 INFO L175 Difference]: Start difference. First operand has 37 places, 18 transitions, 81 flow. Second operand 7 states and 1032 transitions. [2023-01-28 09:15:00,250 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 41 places, 30 transitions, 178 flow [2023-01-28 09:15:00,251 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 32 places, 30 transitions, 144 flow, removed 4 selfloop flow, removed 9 redundant places. [2023-01-28 09:15:00,251 INFO L231 Difference]: Finished difference. Result has 34 places, 16 transitions, 56 flow [2023-01-28 09:15:00,252 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=421, PETRI_DIFFERENCE_MINUEND_FLOW=53, 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=7, PETRI_FLOW=56, PETRI_PLACES=34, PETRI_TRANSITIONS=16} [2023-01-28 09:15:00,252 INFO L281 CegarLoopForPetriNet]: 26 programPoint places, 8 predicate places. [2023-01-28 09:15:00,252 INFO L495 AbstractCegarLoop]: Abstraction has has 34 places, 16 transitions, 56 flow [2023-01-28 09:15:00,253 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 145.66666666666666) internal successors, (874), 6 states have internal predecessors, (874), 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 09:15:00,253 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-28 09:15:00,253 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-01-28 09:15:00,253 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-01-28 09:15:00,253 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 09:15:00,253 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-28 09:15:00,253 INFO L85 PathProgramCache]: Analyzing trace with hash -2031977438, now seen corresponding path program 6 times [2023-01-28 09:15:00,253 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-28 09:15:00,253 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1135041104] [2023-01-28 09:15:00,253 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 09:15:00,254 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-28 09:15:00,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-28 09:15:00,934 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 09:15:00,935 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-28 09:15:00,935 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1135041104] [2023-01-28 09:15:00,935 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1135041104] provided 1 perfect and 0 imperfect interpolant sequences [2023-01-28 09:15:00,935 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-01-28 09:15:00,935 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-01-28 09:15:00,935 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1047097630] [2023-01-28 09:15:00,935 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-01-28 09:15:00,936 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-01-28 09:15:00,936 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-28 09:15:00,937 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-01-28 09:15:00,939 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-01-28 09:15:00,940 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 143 out of 421 [2023-01-28 09:15:00,940 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 34 places, 16 transitions, 56 flow. Second operand has 6 states, 6 states have (on average 145.66666666666666) internal successors, (874), 6 states have internal predecessors, (874), 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 09:15:00,940 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-01-28 09:15:00,940 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 143 of 421 [2023-01-28 09:15:00,940 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-01-28 09:15:01,241 INFO L130 PetriNetUnfolder]: 3/21 cut-off events. [2023-01-28 09:15:01,241 INFO L131 PetriNetUnfolder]: For 6/6 co-relation queries the response was YES. [2023-01-28 09:15:01,241 INFO L83 FinitePrefix]: Finished finitePrefix Result has 69 conditions, 21 events. 3/21 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 9 event pairs, 0 based on Foata normal form. 1/22 useless extension candidates. Maximal degree in co-relation 62. Up to 8 conditions per place. [2023-01-28 09:15:01,241 INFO L137 encePairwiseOnDemand]: 416/421 looper letters, 0 selfloop transitions, 0 changer transitions 18/18 dead transitions. [2023-01-28 09:15:01,241 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 36 places, 18 transitions, 94 flow [2023-01-28 09:15:01,241 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-01-28 09:15:01,241 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-01-28 09:15:01,243 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 877 transitions. [2023-01-28 09:15:01,243 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.34718923198733176 [2023-01-28 09:15:01,243 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 877 transitions. [2023-01-28 09:15:01,243 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 877 transitions. [2023-01-28 09:15:01,243 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-01-28 09:15:01,244 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 877 transitions. [2023-01-28 09:15:01,245 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 146.16666666666666) internal successors, (877), 6 states have internal predecessors, (877), 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 09:15:01,247 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 421.0) internal successors, (2947), 7 states have internal predecessors, (2947), 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 09:15:01,247 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 421.0) internal successors, (2947), 7 states have internal predecessors, (2947), 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 09:15:01,247 INFO L175 Difference]: Start difference. First operand has 34 places, 16 transitions, 56 flow. Second operand 6 states and 877 transitions. [2023-01-28 09:15:01,247 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 36 places, 18 transitions, 94 flow [2023-01-28 09:15:01,248 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 28 places, 18 transitions, 79 flow, removed 1 selfloop flow, removed 8 redundant places. [2023-01-28 09:15:01,248 INFO L231 Difference]: Finished difference. Result has 28 places, 0 transitions, 0 flow [2023-01-28 09:15:01,248 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=421, PETRI_DIFFERENCE_MINUEND_FLOW=37, PETRI_DIFFERENCE_MINUEND_PLACES=23, 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=28, PETRI_TRANSITIONS=0} [2023-01-28 09:15:01,248 INFO L281 CegarLoopForPetriNet]: 26 programPoint places, 2 predicate places. [2023-01-28 09:15:01,249 INFO L495 AbstractCegarLoop]: Abstraction has has 28 places, 0 transitions, 0 flow [2023-01-28 09:15:01,249 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 145.66666666666666) internal successors, (874), 6 states have internal predecessors, (874), 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 09:15:01,251 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (3 of 4 remaining) [2023-01-28 09:15:01,251 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 4 remaining) [2023-01-28 09:15:01,251 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 4 remaining) [2023-01-28 09:15:01,251 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 4 remaining) [2023-01-28 09:15:01,251 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-01-28 09:15:01,251 INFO L445 BasicCegarLoop]: Path program histogram: [6] [2023-01-28 09:15:01,253 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-01-28 09:15:01,253 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-01-28 09:15:01,255 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.01 09:15:01 BasicIcfg [2023-01-28 09:15:01,255 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-01-28 09:15:01,255 INFO L158 Benchmark]: Toolchain (without parser) took 11887.73ms. Allocated memory was 346.0MB in the beginning and 599.8MB in the end (delta: 253.8MB). Free memory was 293.0MB in the beginning and 533.7MB in the end (delta: -240.7MB). Peak memory consumption was 16.1MB. Max. memory is 16.0GB. [2023-01-28 09:15:01,256 INFO L158 Benchmark]: CDTParser took 0.08ms. Allocated memory is still 255.9MB. Free memory is still 213.6MB. There was no memory consumed. Max. memory is 16.0GB. [2023-01-28 09:15:01,256 INFO L158 Benchmark]: CACSL2BoogieTranslator took 191.78ms. Allocated memory is still 346.0MB. Free memory was 292.7MB in the beginning and 281.4MB in the end (delta: 11.2MB). Peak memory consumption was 10.5MB. Max. memory is 16.0GB. [2023-01-28 09:15:01,256 INFO L158 Benchmark]: Boogie Procedure Inliner took 29.80ms. Allocated memory is still 346.0MB. Free memory was 281.2MB in the beginning and 279.2MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-01-28 09:15:01,256 INFO L158 Benchmark]: Boogie Preprocessor took 20.07ms. Allocated memory is still 346.0MB. Free memory was 279.2MB in the beginning and 277.8MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-01-28 09:15:01,256 INFO L158 Benchmark]: RCFGBuilder took 412.14ms. Allocated memory is still 346.0MB. Free memory was 277.8MB in the beginning and 306.9MB in the end (delta: -29.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.0GB. [2023-01-28 09:15:01,257 INFO L158 Benchmark]: TraceAbstraction took 11229.56ms. Allocated memory was 346.0MB in the beginning and 599.8MB in the end (delta: 253.8MB). Free memory was 306.3MB in the beginning and 533.7MB in the end (delta: -227.4MB). Peak memory consumption was 26.6MB. Max. memory is 16.0GB. [2023-01-28 09:15:01,258 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 255.9MB. Free memory is still 213.6MB. There was no memory consumed. Max. memory is 16.0GB. * CACSL2BoogieTranslator took 191.78ms. Allocated memory is still 346.0MB. Free memory was 292.7MB in the beginning and 281.4MB in the end (delta: 11.2MB). Peak memory consumption was 10.5MB. Max. memory is 16.0GB. * Boogie Procedure Inliner took 29.80ms. Allocated memory is still 346.0MB. Free memory was 281.2MB in the beginning and 279.2MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * Boogie Preprocessor took 20.07ms. Allocated memory is still 346.0MB. Free memory was 279.2MB in the beginning and 277.8MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * RCFGBuilder took 412.14ms. Allocated memory is still 346.0MB. Free memory was 277.8MB in the beginning and 306.9MB in the end (delta: -29.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.0GB. * TraceAbstraction took 11229.56ms. Allocated memory was 346.0MB in the beginning and 599.8MB in the end (delta: 253.8MB). Free memory was 306.3MB in the beginning and 533.7MB in the end (delta: -227.4MB). Peak memory consumption was 26.6MB. Max. memory is 16.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 4.6s, 184 PlacesBefore, 26 PlacesAfterwards, 188 TransitionsBefore, 16 TransitionsAfterwards, 9384 CoEnabledTransitionPairs, 8 FixpointIterations, 60 TrivialSequentialCompositions, 96 ConcurrentSequentialCompositions, 6 TrivialYvCompositions, 44 ConcurrentYvCompositions, 14 ChoiceCompositions, 220 TotalNumberOfCompositions, 8713 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 8713, independent: 8713, independent conditional: 0, independent unconditional: 8713, 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: 5808, independent: 5808, independent conditional: 0, independent unconditional: 5808, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 8713, independent: 2905, independent conditional: 0, independent unconditional: 2905, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 5808, unknown conditional: 0, unknown unconditional: 5808] , 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: 81]: 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, 284 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: 11.1s, OverallIterations: 6, TraceHistogramMax: 1, PathProgramHistogramMax: 6, EmptinessCheckTime: 0.0s, AutomataDifference: 1.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 4.7s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 210 SdHoareTripleChecker+Valid, 0.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 210 mSDsluCounter, 0 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 8 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 430 IncrementalHoareTripleChecker+Invalid, 438 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 8 mSolverCounterUnsat, 0 mSDtfsCounter, 430 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 56 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 1.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=100occurred in iteration=2, InterpolantAutomatonStates: 37, 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, 0.3s SatisfiabilityAnalysisTime, 4.2s InterpolantComputationTime, 96 NumberOfCodeBlocks, 96 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 90 ConstructedInterpolants, 0 QuantifiedInterpolants, 2702 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 09:15:01,277 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...