/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/pthread-atomic/lamport.i -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-b8dbc81 [2023-01-28 06:27:41,867 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-01-28 06:27:41,869 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-01-28 06:27:41,897 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-01-28 06:27:41,898 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-01-28 06:27:41,898 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-01-28 06:27:41,899 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-01-28 06:27:41,904 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-01-28 06:27:41,909 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-01-28 06:27:41,915 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-01-28 06:27:41,917 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-01-28 06:27:41,919 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-01-28 06:27:41,920 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-01-28 06:27:41,922 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-01-28 06:27:41,922 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-01-28 06:27:41,923 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-01-28 06:27:41,924 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-01-28 06:27:41,924 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-01-28 06:27:41,925 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-01-28 06:27:41,926 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-01-28 06:27:41,927 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-01-28 06:27:41,933 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-01-28 06:27:41,934 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-01-28 06:27:41,934 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-01-28 06:27:41,936 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2023-01-28 06:27:41,942 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-01-28 06:27:41,942 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-01-28 06:27:41,943 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-01-28 06:27:41,944 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 06:27:41,963 INFO L113 SettingsManager]: Loading preferences was successful [2023-01-28 06:27:41,963 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-01-28 06:27:41,964 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-01-28 06:27:41,964 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-01-28 06:27:41,965 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-01-28 06:27:41,965 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-01-28 06:27:41,965 INFO L138 SettingsManager]: * Use SBE=true [2023-01-28 06:27:41,965 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-01-28 06:27:41,965 INFO L138 SettingsManager]: * sizeof long=4 [2023-01-28 06:27:41,965 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-01-28 06:27:41,966 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-01-28 06:27:41,966 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-01-28 06:27:41,966 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-01-28 06:27:41,967 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-01-28 06:27:41,967 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-01-28 06:27:41,967 INFO L138 SettingsManager]: * sizeof long double=12 [2023-01-28 06:27:41,967 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-01-28 06:27:41,967 INFO L138 SettingsManager]: * Use constant arrays=true [2023-01-28 06:27:41,967 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-01-28 06:27:41,967 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-01-28 06:27:41,967 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-01-28 06:27:41,967 INFO L138 SettingsManager]: * To the following directory=./dump/ [2023-01-28 06:27:41,968 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-01-28 06:27:41,968 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-01-28 06:27:41,968 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-01-28 06:27:41,968 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-01-28 06:27:41,968 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-01-28 06:27:41,968 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-01-28 06:27:41,968 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-01-28 06:27:41,968 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-01-28 06:27:41,968 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-01-28 06:27:41,968 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: When to check the insufficient erros location relative to the other error locations -> AFTER [2023-01-28 06:27:42,186 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-01-28 06:27:42,213 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-01-28 06:27:42,214 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-01-28 06:27:42,215 INFO L271 PluginConnector]: Initializing CDTParser... [2023-01-28 06:27:42,215 INFO L275 PluginConnector]: CDTParser initialized [2023-01-28 06:27:42,216 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-atomic/lamport.i [2023-01-28 06:27:43,199 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-01-28 06:27:43,374 INFO L351 CDTParser]: Found 1 translation units. [2023-01-28 06:27:43,375 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-atomic/lamport.i [2023-01-28 06:27:43,382 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1f2b000d6/bd0435a902b74ef4b96d9e4b22679978/FLAG5c15853d1 [2023-01-28 06:27:43,392 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1f2b000d6/bd0435a902b74ef4b96d9e4b22679978 [2023-01-28 06:27:43,393 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-01-28 06:27:43,394 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2023-01-28 06:27:43,395 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-01-28 06:27:43,395 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-01-28 06:27:43,397 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-01-28 06:27:43,397 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.01 06:27:43" (1/1) ... [2023-01-28 06:27:43,398 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@678e9b57 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 06:27:43, skipping insertion in model container [2023-01-28 06:27:43,398 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.01 06:27:43" (1/1) ... [2023-01-28 06:27:43,402 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-01-28 06:27:43,443 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-01-28 06:27:43,539 WARN L633 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-01-28 06:27:43,646 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-atomic/lamport.i[32156,32169] [2023-01-28 06:27:43,654 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-atomic/lamport.i[34083,34096] [2023-01-28 06:27:43,663 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-01-28 06:27:43,672 INFO L203 MainTranslator]: Completed pre-run [2023-01-28 06:27:43,683 WARN L633 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-01-28 06:27:43,695 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-atomic/lamport.i[32156,32169] [2023-01-28 06:27:43,698 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-atomic/lamport.i[34083,34096] [2023-01-28 06:27:43,700 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-01-28 06:27:43,720 WARN L667 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-01-28 06:27:43,721 WARN L667 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-01-28 06:27:43,721 WARN L667 CHandler]: The function __builtin_bswap16 is called, but not defined or handled by StandardFunctionHandler. [2023-01-28 06:27:43,725 INFO L208 MainTranslator]: Completed translation [2023-01-28 06:27:43,726 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 06:27:43 WrapperNode [2023-01-28 06:27:43,726 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-01-28 06:27:43,727 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-01-28 06:27:43,727 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-01-28 06:27:43,727 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-01-28 06:27:43,731 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 06:27:43" (1/1) ... [2023-01-28 06:27:43,744 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 06:27:43" (1/1) ... [2023-01-28 06:27:43,757 INFO L138 Inliner]: procedures = 171, calls = 83, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 44 [2023-01-28 06:27:43,757 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-01-28 06:27:43,757 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-01-28 06:27:43,757 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-01-28 06:27:43,758 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-01-28 06:27:43,763 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 06:27:43" (1/1) ... [2023-01-28 06:27:43,763 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 06:27:43" (1/1) ... [2023-01-28 06:27:43,766 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 06:27:43" (1/1) ... [2023-01-28 06:27:43,766 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 06:27:43" (1/1) ... [2023-01-28 06:27:43,769 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 06:27:43" (1/1) ... [2023-01-28 06:27:43,773 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 06:27:43" (1/1) ... [2023-01-28 06:27:43,774 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 06:27:43" (1/1) ... [2023-01-28 06:27:43,774 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 06:27:43" (1/1) ... [2023-01-28 06:27:43,776 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-01-28 06:27:43,777 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-01-28 06:27:43,777 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-01-28 06:27:43,777 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-01-28 06:27:43,777 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 06:27:43" (1/1) ... [2023-01-28 06:27:43,781 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-01-28 06:27:43,789 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-01-28 06:27:43,799 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 06:27:43,814 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 06:27:43,824 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-01-28 06:27:43,824 INFO L130 BoogieDeclarations]: Found specification of procedure thr2 [2023-01-28 06:27:43,825 INFO L138 BoogieDeclarations]: Found implementation of procedure thr2 [2023-01-28 06:27:43,825 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2023-01-28 06:27:43,825 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2023-01-28 06:27:43,825 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-01-28 06:27:43,825 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-01-28 06:27:43,825 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-01-28 06:27:43,825 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-01-28 06:27:43,825 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-01-28 06:27:43,825 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-01-28 06:27:43,825 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-01-28 06:27:43,826 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-01-28 06:27:43,826 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-01-28 06:27:43,827 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 06:27:43,926 INFO L236 CfgBuilder]: Building ICFG [2023-01-28 06:27:43,942 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-01-28 06:27:44,084 INFO L277 CfgBuilder]: Performing block encoding [2023-01-28 06:27:44,094 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-01-28 06:27:44,095 INFO L302 CfgBuilder]: Removed 8 assume(true) statements. [2023-01-28 06:27:44,096 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.01 06:27:44 BoogieIcfgContainer [2023-01-28 06:27:44,096 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-01-28 06:27:44,098 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-01-28 06:27:44,098 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-01-28 06:27:44,100 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-01-28 06:27:44,100 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.01 06:27:43" (1/3) ... [2023-01-28 06:27:44,100 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@638c0c8f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.01 06:27:44, skipping insertion in model container [2023-01-28 06:27:44,101 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 06:27:43" (2/3) ... [2023-01-28 06:27:44,101 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@638c0c8f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.01 06:27:44, skipping insertion in model container [2023-01-28 06:27:44,101 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.01 06:27:44" (3/3) ... [2023-01-28 06:27:44,102 INFO L112 eAbstractionObserver]: Analyzing ICFG lamport.i [2023-01-28 06:27:44,113 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-01-28 06:27:44,113 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2023-01-28 06:27:44,113 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-01-28 06:27:44,168 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2023-01-28 06:27:44,192 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 112 places, 129 transitions, 274 flow [2023-01-28 06:27:44,226 INFO L130 PetriNetUnfolder]: 24/127 cut-off events. [2023-01-28 06:27:44,226 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2023-01-28 06:27:44,232 INFO L83 FinitePrefix]: Finished finitePrefix Result has 136 conditions, 127 events. 24/127 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 253 event pairs, 0 based on Foata normal form. 0/101 useless extension candidates. Maximal degree in co-relation 97. Up to 5 conditions per place. [2023-01-28 06:27:44,233 INFO L82 GeneralOperation]: Start removeDead. Operand has 112 places, 129 transitions, 274 flow [2023-01-28 06:27:44,236 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 101 places, 118 transitions, 245 flow [2023-01-28 06:27:44,238 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-01-28 06:27:44,251 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 101 places, 118 transitions, 245 flow [2023-01-28 06:27:44,253 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 101 places, 118 transitions, 245 flow [2023-01-28 06:27:44,253 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 101 places, 118 transitions, 245 flow [2023-01-28 06:27:44,270 INFO L130 PetriNetUnfolder]: 24/118 cut-off events. [2023-01-28 06:27:44,271 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2023-01-28 06:27:44,272 INFO L83 FinitePrefix]: Finished finitePrefix Result has 126 conditions, 118 events. 24/118 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 249 event pairs, 0 based on Foata normal form. 0/92 useless extension candidates. Maximal degree in co-relation 97. Up to 5 conditions per place. [2023-01-28 06:27:44,274 INFO L119 LiptonReduction]: Number of co-enabled transitions 4988 [2023-01-28 06:27:45,517 INFO L134 LiptonReduction]: Checked pairs total: 14233 [2023-01-28 06:27:45,517 INFO L136 LiptonReduction]: Total number of compositions: 69 [2023-01-28 06:27:45,529 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-01-28 06:27:45,533 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;@2e072e59, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-01-28 06:27:45,533 INFO L358 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2023-01-28 06:27:45,535 INFO L130 PetriNetUnfolder]: 2/10 cut-off events. [2023-01-28 06:27:45,536 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-01-28 06:27:45,536 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-28 06:27:45,536 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2023-01-28 06:27:45,536 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2023-01-28 06:27:45,539 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-28 06:27:45,540 INFO L85 PathProgramCache]: Analyzing trace with hash 16739404, now seen corresponding path program 1 times [2023-01-28 06:27:45,545 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-28 06:27:45,546 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2141353258] [2023-01-28 06:27:45,546 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 06:27:45,546 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-28 06:27:45,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-28 06:27:45,659 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 06:27:45,659 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-28 06:27:45,659 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2141353258] [2023-01-28 06:27:45,660 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2141353258] provided 1 perfect and 0 imperfect interpolant sequences [2023-01-28 06:27:45,660 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-01-28 06:27:45,660 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-01-28 06:27:45,661 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1598180618] [2023-01-28 06:27:45,661 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-01-28 06:27:45,667 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-01-28 06:27:45,670 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-28 06:27:45,683 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-01-28 06:27:45,683 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-01-28 06:27:45,684 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 113 out of 198 [2023-01-28 06:27:45,686 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 53 places, 64 transitions, 137 flow. Second operand has 2 states, 2 states have (on average 115.0) internal successors, (230), 2 states have internal predecessors, (230), 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 06:27:45,686 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-01-28 06:27:45,686 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 113 of 198 [2023-01-28 06:27:45,687 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-01-28 06:27:45,808 INFO L130 PetriNetUnfolder]: 832/1381 cut-off events. [2023-01-28 06:27:45,809 INFO L131 PetriNetUnfolder]: For 40/40 co-relation queries the response was YES. [2023-01-28 06:27:45,812 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2603 conditions, 1381 events. 832/1381 cut-off events. For 40/40 co-relation queries the response was YES. Maximal size of possible extension queue 71. Compared 6767 event pairs, 432 based on Foata normal form. 47/987 useless extension candidates. Maximal degree in co-relation 2454. Up to 1184 conditions per place. [2023-01-28 06:27:45,820 INFO L137 encePairwiseOnDemand]: 192/198 looper letters, 39 selfloop transitions, 0 changer transitions 0/58 dead transitions. [2023-01-28 06:27:45,820 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 54 places, 58 transitions, 203 flow [2023-01-28 06:27:45,821 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-01-28 06:27:45,823 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-01-28 06:27:45,830 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 271 transitions. [2023-01-28 06:27:45,832 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6843434343434344 [2023-01-28 06:27:45,832 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 271 transitions. [2023-01-28 06:27:45,832 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 271 transitions. [2023-01-28 06:27:45,833 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-01-28 06:27:45,835 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 271 transitions. [2023-01-28 06:27:45,837 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 135.5) internal successors, (271), 2 states have internal predecessors, (271), 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 06:27:45,839 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 198.0) internal successors, (594), 3 states have internal predecessors, (594), 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 06:27:45,840 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 198.0) internal successors, (594), 3 states have internal predecessors, (594), 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 06:27:45,841 INFO L175 Difference]: Start difference. First operand has 53 places, 64 transitions, 137 flow. Second operand 2 states and 271 transitions. [2023-01-28 06:27:45,841 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 54 places, 58 transitions, 203 flow [2023-01-28 06:27:45,843 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 51 places, 58 transitions, 198 flow, removed 0 selfloop flow, removed 3 redundant places. [2023-01-28 06:27:45,845 INFO L231 Difference]: Finished difference. Result has 51 places, 58 transitions, 120 flow [2023-01-28 06:27:45,846 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=198, PETRI_DIFFERENCE_MINUEND_FLOW=120, PETRI_DIFFERENCE_MINUEND_PLACES=50, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=58, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=58, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=120, PETRI_PLACES=51, PETRI_TRANSITIONS=58} [2023-01-28 06:27:45,848 INFO L281 CegarLoopForPetriNet]: 53 programPoint places, -2 predicate places. [2023-01-28 06:27:45,848 INFO L495 AbstractCegarLoop]: Abstraction has has 51 places, 58 transitions, 120 flow [2023-01-28 06:27:45,848 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 115.0) internal successors, (230), 2 states have internal predecessors, (230), 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 06:27:45,848 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-28 06:27:45,849 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-01-28 06:27:45,849 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-01-28 06:27:45,849 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2023-01-28 06:27:45,849 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-28 06:27:45,849 INFO L85 PathProgramCache]: Analyzing trace with hash -932705631, now seen corresponding path program 1 times [2023-01-28 06:27:45,849 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-28 06:27:45,850 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [449423681] [2023-01-28 06:27:45,850 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 06:27:45,850 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-28 06:27:45,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-28 06:27:45,909 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 06:27:45,909 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-28 06:27:45,909 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [449423681] [2023-01-28 06:27:45,909 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [449423681] provided 1 perfect and 0 imperfect interpolant sequences [2023-01-28 06:27:45,910 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-01-28 06:27:45,910 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-01-28 06:27:45,910 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [828446906] [2023-01-28 06:27:45,910 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-01-28 06:27:45,910 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-01-28 06:27:45,911 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-28 06:27:45,911 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-01-28 06:27:45,911 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-01-28 06:27:45,912 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 106 out of 198 [2023-01-28 06:27:45,912 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 51 places, 58 transitions, 120 flow. Second operand has 3 states, 3 states have (on average 108.33333333333333) internal successors, (325), 3 states have internal predecessors, (325), 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 06:27:45,912 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-01-28 06:27:45,912 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 106 of 198 [2023-01-28 06:27:45,912 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-01-28 06:27:46,046 INFO L130 PetriNetUnfolder]: 1009/1696 cut-off events. [2023-01-28 06:27:46,046 INFO L131 PetriNetUnfolder]: For 20/20 co-relation queries the response was YES. [2023-01-28 06:27:46,048 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3202 conditions, 1696 events. 1009/1696 cut-off events. For 20/20 co-relation queries the response was YES. Maximal size of possible extension queue 100. Compared 8721 event pairs, 354 based on Foata normal form. 0/1158 useless extension candidates. Maximal degree in co-relation 3199. Up to 1011 conditions per place. [2023-01-28 06:27:46,054 INFO L137 encePairwiseOnDemand]: 190/198 looper letters, 58 selfloop transitions, 5 changer transitions 2/80 dead transitions. [2023-01-28 06:27:46,054 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 53 places, 80 transitions, 295 flow [2023-01-28 06:27:46,055 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-01-28 06:27:46,055 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-01-28 06:27:46,056 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 386 transitions. [2023-01-28 06:27:46,057 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6498316498316499 [2023-01-28 06:27:46,057 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 386 transitions. [2023-01-28 06:27:46,057 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 386 transitions. [2023-01-28 06:27:46,057 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-01-28 06:27:46,057 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 386 transitions. [2023-01-28 06:27:46,058 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 128.66666666666666) internal successors, (386), 3 states have internal predecessors, (386), 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 06:27:46,059 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 198.0) internal successors, (792), 4 states have internal predecessors, (792), 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 06:27:46,060 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 198.0) internal successors, (792), 4 states have internal predecessors, (792), 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 06:27:46,060 INFO L175 Difference]: Start difference. First operand has 51 places, 58 transitions, 120 flow. Second operand 3 states and 386 transitions. [2023-01-28 06:27:46,060 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 53 places, 80 transitions, 295 flow [2023-01-28 06:27:46,060 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 53 places, 80 transitions, 295 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-01-28 06:27:46,061 INFO L231 Difference]: Finished difference. Result has 55 places, 60 transitions, 154 flow [2023-01-28 06:27:46,061 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=198, PETRI_DIFFERENCE_MINUEND_FLOW=120, PETRI_DIFFERENCE_MINUEND_PLACES=51, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=58, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=53, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=154, PETRI_PLACES=55, PETRI_TRANSITIONS=60} [2023-01-28 06:27:46,062 INFO L281 CegarLoopForPetriNet]: 53 programPoint places, 2 predicate places. [2023-01-28 06:27:46,062 INFO L495 AbstractCegarLoop]: Abstraction has has 55 places, 60 transitions, 154 flow [2023-01-28 06:27:46,062 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 108.33333333333333) internal successors, (325), 3 states have internal predecessors, (325), 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 06:27:46,062 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-28 06:27:46,062 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-01-28 06:27:46,062 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-01-28 06:27:46,063 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting thr2Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2023-01-28 06:27:46,063 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-28 06:27:46,063 INFO L85 PathProgramCache]: Analyzing trace with hash -1147973996, now seen corresponding path program 1 times [2023-01-28 06:27:46,063 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-28 06:27:46,063 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [268880627] [2023-01-28 06:27:46,063 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 06:27:46,063 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-28 06:27:46,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-28 06:27:46,103 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 06:27:46,103 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-28 06:27:46,103 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [268880627] [2023-01-28 06:27:46,104 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [268880627] provided 1 perfect and 0 imperfect interpolant sequences [2023-01-28 06:27:46,104 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-01-28 06:27:46,104 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-01-28 06:27:46,104 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [406202375] [2023-01-28 06:27:46,104 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-01-28 06:27:46,104 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-01-28 06:27:46,104 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-28 06:27:46,105 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-01-28 06:27:46,105 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-01-28 06:27:46,105 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 106 out of 198 [2023-01-28 06:27:46,106 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 55 places, 60 transitions, 154 flow. Second operand has 3 states, 3 states have (on average 109.0) internal successors, (327), 3 states have internal predecessors, (327), 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 06:27:46,106 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-01-28 06:27:46,106 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 106 of 198 [2023-01-28 06:27:46,106 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-01-28 06:27:46,235 INFO L130 PetriNetUnfolder]: 881/1496 cut-off events. [2023-01-28 06:27:46,236 INFO L131 PetriNetUnfolder]: For 206/206 co-relation queries the response was YES. [2023-01-28 06:27:46,238 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3030 conditions, 1496 events. 881/1496 cut-off events. For 206/206 co-relation queries the response was YES. Maximal size of possible extension queue 80. Compared 7487 event pairs, 358 based on Foata normal form. 38/1203 useless extension candidates. Maximal degree in co-relation 3025. Up to 1004 conditions per place. [2023-01-28 06:27:46,242 INFO L137 encePairwiseOnDemand]: 191/198 looper letters, 52 selfloop transitions, 4 changer transitions 6/77 dead transitions. [2023-01-28 06:27:46,242 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 57 places, 77 transitions, 313 flow [2023-01-28 06:27:46,242 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-01-28 06:27:46,242 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-01-28 06:27:46,243 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 383 transitions. [2023-01-28 06:27:46,243 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6447811447811448 [2023-01-28 06:27:46,243 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 383 transitions. [2023-01-28 06:27:46,243 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 383 transitions. [2023-01-28 06:27:46,243 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-01-28 06:27:46,243 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 383 transitions. [2023-01-28 06:27:46,244 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 127.66666666666667) internal successors, (383), 3 states have internal predecessors, (383), 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 06:27:46,246 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 198.0) internal successors, (792), 4 states have internal predecessors, (792), 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 06:27:46,246 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 198.0) internal successors, (792), 4 states have internal predecessors, (792), 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 06:27:46,246 INFO L175 Difference]: Start difference. First operand has 55 places, 60 transitions, 154 flow. Second operand 3 states and 383 transitions. [2023-01-28 06:27:46,246 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 57 places, 77 transitions, 313 flow [2023-01-28 06:27:46,248 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 55 places, 77 transitions, 303 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-01-28 06:27:46,249 INFO L231 Difference]: Finished difference. Result has 56 places, 58 transitions, 154 flow [2023-01-28 06:27:46,249 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=198, PETRI_DIFFERENCE_MINUEND_FLOW=144, PETRI_DIFFERENCE_MINUEND_PLACES=53, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=60, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=56, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=154, PETRI_PLACES=56, PETRI_TRANSITIONS=58} [2023-01-28 06:27:46,250 INFO L281 CegarLoopForPetriNet]: 53 programPoint places, 3 predicate places. [2023-01-28 06:27:46,250 INFO L495 AbstractCegarLoop]: Abstraction has has 56 places, 58 transitions, 154 flow [2023-01-28 06:27:46,250 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 109.0) internal successors, (327), 3 states have internal predecessors, (327), 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 06:27:46,250 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-28 06:27:46,250 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-01-28 06:27:46,250 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-01-28 06:27:46,251 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2023-01-28 06:27:46,251 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-28 06:27:46,251 INFO L85 PathProgramCache]: Analyzing trace with hash -451012777, now seen corresponding path program 1 times [2023-01-28 06:27:46,251 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-28 06:27:46,251 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1460204710] [2023-01-28 06:27:46,251 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 06:27:46,252 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-28 06:27:46,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-28 06:27:46,323 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 06:27:46,323 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-28 06:27:46,323 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1460204710] [2023-01-28 06:27:46,323 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1460204710] provided 1 perfect and 0 imperfect interpolant sequences [2023-01-28 06:27:46,324 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-01-28 06:27:46,324 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-01-28 06:27:46,324 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1550152596] [2023-01-28 06:27:46,324 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-01-28 06:27:46,324 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-01-28 06:27:46,324 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-28 06:27:46,325 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-01-28 06:27:46,325 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-01-28 06:27:46,334 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 96 out of 198 [2023-01-28 06:27:46,335 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 56 places, 58 transitions, 154 flow. Second operand has 3 states, 3 states have (on average 101.0) internal successors, (303), 3 states have internal predecessors, (303), 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 06:27:46,335 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-01-28 06:27:46,335 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 96 of 198 [2023-01-28 06:27:46,335 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-01-28 06:27:46,496 INFO L130 PetriNetUnfolder]: 1686/2765 cut-off events. [2023-01-28 06:27:46,497 INFO L131 PetriNetUnfolder]: For 715/715 co-relation queries the response was YES. [2023-01-28 06:27:46,499 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5758 conditions, 2765 events. 1686/2765 cut-off events. For 715/715 co-relation queries the response was YES. Maximal size of possible extension queue 128. Compared 14372 event pairs, 462 based on Foata normal form. 0/2288 useless extension candidates. Maximal degree in co-relation 5752. Up to 1442 conditions per place. [2023-01-28 06:27:46,504 INFO L137 encePairwiseOnDemand]: 193/198 looper letters, 71 selfloop transitions, 4 changer transitions 12/98 dead transitions. [2023-01-28 06:27:46,504 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 56 places, 98 transitions, 438 flow [2023-01-28 06:27:46,504 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-01-28 06:27:46,505 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-01-28 06:27:46,505 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 372 transitions. [2023-01-28 06:27:46,505 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6262626262626263 [2023-01-28 06:27:46,505 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 372 transitions. [2023-01-28 06:27:46,506 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 372 transitions. [2023-01-28 06:27:46,506 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-01-28 06:27:46,506 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 372 transitions. [2023-01-28 06:27:46,506 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 124.0) internal successors, (372), 3 states have internal predecessors, (372), 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 06:27:46,507 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 198.0) internal successors, (792), 4 states have internal predecessors, (792), 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 06:27:46,508 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 198.0) internal successors, (792), 4 states have internal predecessors, (792), 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 06:27:46,508 INFO L175 Difference]: Start difference. First operand has 56 places, 58 transitions, 154 flow. Second operand 3 states and 372 transitions. [2023-01-28 06:27:46,508 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 56 places, 98 transitions, 438 flow [2023-01-28 06:27:46,510 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 55 places, 98 transitions, 430 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-01-28 06:27:46,511 INFO L231 Difference]: Finished difference. Result has 57 places, 62 transitions, 184 flow [2023-01-28 06:27:46,511 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=198, PETRI_DIFFERENCE_MINUEND_FLOW=150, PETRI_DIFFERENCE_MINUEND_PLACES=53, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=58, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=54, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=184, PETRI_PLACES=57, PETRI_TRANSITIONS=62} [2023-01-28 06:27:46,511 INFO L281 CegarLoopForPetriNet]: 53 programPoint places, 4 predicate places. [2023-01-28 06:27:46,511 INFO L495 AbstractCegarLoop]: Abstraction has has 57 places, 62 transitions, 184 flow [2023-01-28 06:27:46,512 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 101.0) internal successors, (303), 3 states have internal predecessors, (303), 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 06:27:46,512 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-28 06:27:46,512 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-01-28 06:27:46,512 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-01-28 06:27:46,512 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2023-01-28 06:27:46,512 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-28 06:27:46,512 INFO L85 PathProgramCache]: Analyzing trace with hash 871684335, now seen corresponding path program 2 times [2023-01-28 06:27:46,512 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-28 06:27:46,513 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [627682123] [2023-01-28 06:27:46,513 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 06:27:46,513 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-28 06:27:46,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-28 06:27:46,545 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 06:27:46,545 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-28 06:27:46,546 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [627682123] [2023-01-28 06:27:46,546 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [627682123] provided 1 perfect and 0 imperfect interpolant sequences [2023-01-28 06:27:46,546 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-01-28 06:27:46,546 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-01-28 06:27:46,546 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [103787720] [2023-01-28 06:27:46,546 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-01-28 06:27:46,546 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-01-28 06:27:46,546 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-28 06:27:46,547 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-01-28 06:27:46,547 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-01-28 06:27:46,547 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 106 out of 198 [2023-01-28 06:27:46,547 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 57 places, 62 transitions, 184 flow. Second operand has 4 states, 4 states have (on average 110.25) internal successors, (441), 4 states have internal predecessors, (441), 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 06:27:46,548 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-01-28 06:27:46,548 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 106 of 198 [2023-01-28 06:27:46,548 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-01-28 06:27:47,035 INFO L130 PetriNetUnfolder]: 4808/7901 cut-off events. [2023-01-28 06:27:47,035 INFO L131 PetriNetUnfolder]: For 1496/1502 co-relation queries the response was YES. [2023-01-28 06:27:47,042 INFO L83 FinitePrefix]: Finished finitePrefix Result has 16682 conditions, 7901 events. 4808/7901 cut-off events. For 1496/1502 co-relation queries the response was YES. Maximal size of possible extension queue 275. Compared 48565 event pairs, 770 based on Foata normal form. 60/6689 useless extension candidates. Maximal degree in co-relation 16675. Up to 2300 conditions per place. [2023-01-28 06:27:47,062 INFO L137 encePairwiseOnDemand]: 194/198 looper letters, 143 selfloop transitions, 6 changer transitions 1/166 dead transitions. [2023-01-28 06:27:47,062 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 61 places, 166 transitions, 768 flow [2023-01-28 06:27:47,062 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-01-28 06:27:47,062 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-01-28 06:27:47,063 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 672 transitions. [2023-01-28 06:27:47,063 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6787878787878788 [2023-01-28 06:27:47,063 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 672 transitions. [2023-01-28 06:27:47,064 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 672 transitions. [2023-01-28 06:27:47,064 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-01-28 06:27:47,064 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 672 transitions. [2023-01-28 06:27:47,065 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 134.4) internal successors, (672), 5 states have internal predecessors, (672), 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 06:27:47,066 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 198.0) internal successors, (1188), 6 states have internal predecessors, (1188), 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 06:27:47,067 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 198.0) internal successors, (1188), 6 states have internal predecessors, (1188), 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 06:27:47,067 INFO L175 Difference]: Start difference. First operand has 57 places, 62 transitions, 184 flow. Second operand 5 states and 672 transitions. [2023-01-28 06:27:47,067 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 61 places, 166 transitions, 768 flow [2023-01-28 06:27:47,071 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 59 places, 166 transitions, 754 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-01-28 06:27:47,074 INFO L231 Difference]: Finished difference. Result has 63 places, 68 transitions, 228 flow [2023-01-28 06:27:47,074 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=198, PETRI_DIFFERENCE_MINUEND_FLOW=176, PETRI_DIFFERENCE_MINUEND_PLACES=55, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=62, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=59, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=228, PETRI_PLACES=63, PETRI_TRANSITIONS=68} [2023-01-28 06:27:47,075 INFO L281 CegarLoopForPetriNet]: 53 programPoint places, 10 predicate places. [2023-01-28 06:27:47,076 INFO L495 AbstractCegarLoop]: Abstraction has has 63 places, 68 transitions, 228 flow [2023-01-28 06:27:47,076 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 110.25) internal successors, (441), 4 states have internal predecessors, (441), 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 06:27:47,077 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-28 06:27:47,077 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-01-28 06:27:47,077 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-01-28 06:27:47,077 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2023-01-28 06:27:47,077 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-28 06:27:47,077 INFO L85 PathProgramCache]: Analyzing trace with hash 617069377, now seen corresponding path program 3 times [2023-01-28 06:27:47,077 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-28 06:27:47,077 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1038832598] [2023-01-28 06:27:47,077 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 06:27:47,078 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-28 06:27:47,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-28 06:27:47,127 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 06:27:47,127 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-28 06:27:47,127 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1038832598] [2023-01-28 06:27:47,127 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1038832598] provided 1 perfect and 0 imperfect interpolant sequences [2023-01-28 06:27:47,127 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-01-28 06:27:47,127 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-01-28 06:27:47,127 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1119714541] [2023-01-28 06:27:47,128 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-01-28 06:27:47,130 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-01-28 06:27:47,131 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-28 06:27:47,131 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-01-28 06:27:47,131 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-01-28 06:27:47,132 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 88 out of 198 [2023-01-28 06:27:47,132 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 63 places, 68 transitions, 228 flow. Second operand has 4 states, 4 states have (on average 91.75) internal successors, (367), 4 states have internal predecessors, (367), 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 06:27:47,132 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-01-28 06:27:47,132 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 88 of 198 [2023-01-28 06:27:47,132 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-01-28 06:27:47,635 INFO L130 PetriNetUnfolder]: 5269/8776 cut-off events. [2023-01-28 06:27:47,635 INFO L131 PetriNetUnfolder]: For 2391/2427 co-relation queries the response was YES. [2023-01-28 06:27:47,646 INFO L83 FinitePrefix]: Finished finitePrefix Result has 19146 conditions, 8776 events. 5269/8776 cut-off events. For 2391/2427 co-relation queries the response was YES. Maximal size of possible extension queue 362. Compared 57280 event pairs, 1465 based on Foata normal form. 268/7859 useless extension candidates. Maximal degree in co-relation 19136. Up to 4341 conditions per place. [2023-01-28 06:27:47,661 INFO L137 encePairwiseOnDemand]: 184/198 looper letters, 85 selfloop transitions, 16 changer transitions 16/134 dead transitions. [2023-01-28 06:27:47,661 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 67 places, 134 transitions, 639 flow [2023-01-28 06:27:47,661 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-01-28 06:27:47,661 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-01-28 06:27:47,662 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 559 transitions. [2023-01-28 06:27:47,662 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5646464646464646 [2023-01-28 06:27:47,662 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 559 transitions. [2023-01-28 06:27:47,662 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 559 transitions. [2023-01-28 06:27:47,663 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-01-28 06:27:47,663 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 559 transitions. [2023-01-28 06:27:47,664 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 111.8) internal successors, (559), 5 states have internal predecessors, (559), 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 06:27:47,665 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 198.0) internal successors, (1188), 6 states have internal predecessors, (1188), 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 06:27:47,665 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 198.0) internal successors, (1188), 6 states have internal predecessors, (1188), 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 06:27:47,666 INFO L175 Difference]: Start difference. First operand has 63 places, 68 transitions, 228 flow. Second operand 5 states and 559 transitions. [2023-01-28 06:27:47,666 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 67 places, 134 transitions, 639 flow [2023-01-28 06:27:47,671 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 67 places, 134 transitions, 639 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-01-28 06:27:47,672 INFO L231 Difference]: Finished difference. Result has 70 places, 80 transitions, 355 flow [2023-01-28 06:27:47,673 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=198, PETRI_DIFFERENCE_MINUEND_FLOW=228, PETRI_DIFFERENCE_MINUEND_PLACES=63, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=68, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=57, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=355, PETRI_PLACES=70, PETRI_TRANSITIONS=80} [2023-01-28 06:27:47,673 INFO L281 CegarLoopForPetriNet]: 53 programPoint places, 17 predicate places. [2023-01-28 06:27:47,673 INFO L495 AbstractCegarLoop]: Abstraction has has 70 places, 80 transitions, 355 flow [2023-01-28 06:27:47,673 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 91.75) internal successors, (367), 4 states have internal predecessors, (367), 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 06:27:47,674 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-28 06:27:47,674 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-01-28 06:27:47,674 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-01-28 06:27:47,674 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2023-01-28 06:27:47,674 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-28 06:27:47,674 INFO L85 PathProgramCache]: Analyzing trace with hash 767352201, now seen corresponding path program 4 times [2023-01-28 06:27:47,674 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-28 06:27:47,674 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1995758637] [2023-01-28 06:27:47,675 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 06:27:47,675 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-28 06:27:47,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-28 06:27:47,706 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 06:27:47,707 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-28 06:27:47,707 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1995758637] [2023-01-28 06:27:47,707 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1995758637] provided 1 perfect and 0 imperfect interpolant sequences [2023-01-28 06:27:47,707 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-01-28 06:27:47,707 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-01-28 06:27:47,707 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1749186954] [2023-01-28 06:27:47,707 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-01-28 06:27:47,707 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-01-28 06:27:47,708 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-28 06:27:47,708 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-01-28 06:27:47,708 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-01-28 06:27:47,708 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 106 out of 198 [2023-01-28 06:27:47,709 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 70 places, 80 transitions, 355 flow. Second operand has 4 states, 4 states have (on average 110.25) internal successors, (441), 4 states have internal predecessors, (441), 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 06:27:47,709 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-01-28 06:27:47,709 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 106 of 198 [2023-01-28 06:27:47,709 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-01-28 06:27:48,383 INFO L130 PetriNetUnfolder]: 7311/12449 cut-off events. [2023-01-28 06:27:48,383 INFO L131 PetriNetUnfolder]: For 8453/9135 co-relation queries the response was YES. [2023-01-28 06:27:48,402 INFO L83 FinitePrefix]: Finished finitePrefix Result has 32187 conditions, 12449 events. 7311/12449 cut-off events. For 8453/9135 co-relation queries the response was YES. Maximal size of possible extension queue 396. Compared 86410 event pairs, 1424 based on Foata normal form. 378/11718 useless extension candidates. Maximal degree in co-relation 32173. Up to 3446 conditions per place. [2023-01-28 06:27:48,424 INFO L137 encePairwiseOnDemand]: 194/198 looper letters, 160 selfloop transitions, 10 changer transitions 20/210 dead transitions. [2023-01-28 06:27:48,424 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 74 places, 210 transitions, 1299 flow [2023-01-28 06:27:48,424 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-01-28 06:27:48,425 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-01-28 06:27:48,425 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 676 transitions. [2023-01-28 06:27:48,426 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6828282828282828 [2023-01-28 06:27:48,426 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 676 transitions. [2023-01-28 06:27:48,426 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 676 transitions. [2023-01-28 06:27:48,426 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-01-28 06:27:48,426 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 676 transitions. [2023-01-28 06:27:48,427 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 135.2) internal successors, (676), 5 states have internal predecessors, (676), 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 06:27:48,428 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 198.0) internal successors, (1188), 6 states have internal predecessors, (1188), 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 06:27:48,428 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 198.0) internal successors, (1188), 6 states have internal predecessors, (1188), 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 06:27:48,428 INFO L175 Difference]: Start difference. First operand has 70 places, 80 transitions, 355 flow. Second operand 5 states and 676 transitions. [2023-01-28 06:27:48,428 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 74 places, 210 transitions, 1299 flow [2023-01-28 06:27:48,443 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 73 places, 210 transitions, 1277 flow, removed 3 selfloop flow, removed 1 redundant places. [2023-01-28 06:27:48,444 INFO L231 Difference]: Finished difference. Result has 77 places, 87 transitions, 428 flow [2023-01-28 06:27:48,444 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=198, PETRI_DIFFERENCE_MINUEND_FLOW=340, PETRI_DIFFERENCE_MINUEND_PLACES=69, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=80, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=74, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=428, PETRI_PLACES=77, PETRI_TRANSITIONS=87} [2023-01-28 06:27:48,445 INFO L281 CegarLoopForPetriNet]: 53 programPoint places, 24 predicate places. [2023-01-28 06:27:48,445 INFO L495 AbstractCegarLoop]: Abstraction has has 77 places, 87 transitions, 428 flow [2023-01-28 06:27:48,445 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 110.25) internal successors, (441), 4 states have internal predecessors, (441), 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 06:27:48,445 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-28 06:27:48,445 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-01-28 06:27:48,445 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-01-28 06:27:48,446 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2023-01-28 06:27:48,446 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-28 06:27:48,446 INFO L85 PathProgramCache]: Analyzing trace with hash -436816581, now seen corresponding path program 1 times [2023-01-28 06:27:48,446 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-28 06:27:48,446 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [13095269] [2023-01-28 06:27:48,446 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 06:27:48,446 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-28 06:27:48,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-28 06:27:48,474 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 06:27:48,475 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-28 06:27:48,475 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [13095269] [2023-01-28 06:27:48,475 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [13095269] provided 1 perfect and 0 imperfect interpolant sequences [2023-01-28 06:27:48,475 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-01-28 06:27:48,475 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-01-28 06:27:48,475 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [145365204] [2023-01-28 06:27:48,475 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-01-28 06:27:48,475 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-01-28 06:27:48,476 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-28 06:27:48,476 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-01-28 06:27:48,476 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-01-28 06:27:48,476 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 104 out of 198 [2023-01-28 06:27:48,477 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 77 places, 87 transitions, 428 flow. Second operand has 4 states, 4 states have (on average 108.0) internal successors, (432), 4 states have internal predecessors, (432), 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 06:27:48,477 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-01-28 06:27:48,477 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 104 of 198 [2023-01-28 06:27:48,477 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-01-28 06:27:48,991 INFO L130 PetriNetUnfolder]: 5926/10293 cut-off events. [2023-01-28 06:27:48,991 INFO L131 PetriNetUnfolder]: For 7317/8062 co-relation queries the response was YES. [2023-01-28 06:27:49,013 INFO L83 FinitePrefix]: Finished finitePrefix Result has 25908 conditions, 10293 events. 5926/10293 cut-off events. For 7317/8062 co-relation queries the response was YES. Maximal size of possible extension queue 331. Compared 70943 event pairs, 2070 based on Foata normal form. 418/9678 useless extension candidates. Maximal degree in co-relation 25891. Up to 6104 conditions per place. [2023-01-28 06:27:49,031 INFO L137 encePairwiseOnDemand]: 191/198 looper letters, 78 selfloop transitions, 9 changer transitions 8/130 dead transitions. [2023-01-28 06:27:49,031 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 81 places, 130 transitions, 767 flow [2023-01-28 06:27:49,031 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-01-28 06:27:49,031 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-01-28 06:27:49,032 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 602 transitions. [2023-01-28 06:27:49,032 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6080808080808081 [2023-01-28 06:27:49,032 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 602 transitions. [2023-01-28 06:27:49,032 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 602 transitions. [2023-01-28 06:27:49,033 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-01-28 06:27:49,033 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 602 transitions. [2023-01-28 06:27:49,033 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 120.4) internal successors, (602), 5 states have internal predecessors, (602), 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 06:27:49,035 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 198.0) internal successors, (1188), 6 states have internal predecessors, (1188), 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 06:27:49,035 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 198.0) internal successors, (1188), 6 states have internal predecessors, (1188), 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 06:27:49,035 INFO L175 Difference]: Start difference. First operand has 77 places, 87 transitions, 428 flow. Second operand 5 states and 602 transitions. [2023-01-28 06:27:49,035 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 81 places, 130 transitions, 767 flow [2023-01-28 06:27:49,045 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 81 places, 130 transitions, 759 flow, removed 4 selfloop flow, removed 0 redundant places. [2023-01-28 06:27:49,047 INFO L231 Difference]: Finished difference. Result has 84 places, 91 transitions, 474 flow [2023-01-28 06:27:49,047 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=198, PETRI_DIFFERENCE_MINUEND_FLOW=412, PETRI_DIFFERENCE_MINUEND_PLACES=77, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=85, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=80, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=474, PETRI_PLACES=84, PETRI_TRANSITIONS=91} [2023-01-28 06:27:49,047 INFO L281 CegarLoopForPetriNet]: 53 programPoint places, 31 predicate places. [2023-01-28 06:27:49,047 INFO L495 AbstractCegarLoop]: Abstraction has has 84 places, 91 transitions, 474 flow [2023-01-28 06:27:49,047 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 108.0) internal successors, (432), 4 states have internal predecessors, (432), 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 06:27:49,048 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-28 06:27:49,048 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-01-28 06:27:49,048 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-01-28 06:27:49,048 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2023-01-28 06:27:49,048 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-28 06:27:49,048 INFO L85 PathProgramCache]: Analyzing trace with hash 2145215388, now seen corresponding path program 1 times [2023-01-28 06:27:49,048 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-28 06:27:49,048 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1612660607] [2023-01-28 06:27:49,048 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 06:27:49,048 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-28 06:27:49,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-28 06:27:49,077 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 06:27:49,078 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-28 06:27:49,078 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1612660607] [2023-01-28 06:27:49,078 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1612660607] provided 1 perfect and 0 imperfect interpolant sequences [2023-01-28 06:27:49,078 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-01-28 06:27:49,078 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-01-28 06:27:49,078 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1660829365] [2023-01-28 06:27:49,078 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-01-28 06:27:49,078 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-01-28 06:27:49,078 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-28 06:27:49,079 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-01-28 06:27:49,079 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-01-28 06:27:49,079 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 104 out of 198 [2023-01-28 06:27:49,079 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 84 places, 91 transitions, 474 flow. Second operand has 4 states, 4 states have (on average 108.0) internal successors, (432), 4 states have internal predecessors, (432), 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 06:27:49,079 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-01-28 06:27:49,079 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 104 of 198 [2023-01-28 06:27:49,079 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-01-28 06:27:49,607 INFO L130 PetriNetUnfolder]: 5307/9768 cut-off events. [2023-01-28 06:27:49,607 INFO L131 PetriNetUnfolder]: For 9352/9941 co-relation queries the response was YES. [2023-01-28 06:27:49,630 INFO L83 FinitePrefix]: Finished finitePrefix Result has 26643 conditions, 9768 events. 5307/9768 cut-off events. For 9352/9941 co-relation queries the response was YES. Maximal size of possible extension queue 281. Compared 68526 event pairs, 1905 based on Foata normal form. 206/9125 useless extension candidates. Maximal degree in co-relation 26622. Up to 5865 conditions per place. [2023-01-28 06:27:49,643 INFO L137 encePairwiseOnDemand]: 191/198 looper letters, 81 selfloop transitions, 10 changer transitions 12/136 dead transitions. [2023-01-28 06:27:49,643 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 88 places, 136 transitions, 841 flow [2023-01-28 06:27:49,648 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-01-28 06:27:49,648 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-01-28 06:27:49,649 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 605 transitions. [2023-01-28 06:27:49,649 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6111111111111112 [2023-01-28 06:27:49,649 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 605 transitions. [2023-01-28 06:27:49,649 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 605 transitions. [2023-01-28 06:27:49,649 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-01-28 06:27:49,649 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 605 transitions. [2023-01-28 06:27:49,650 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 121.0) internal successors, (605), 5 states have internal predecessors, (605), 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 06:27:49,651 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 198.0) internal successors, (1188), 6 states have internal predecessors, (1188), 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 06:27:49,652 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 198.0) internal successors, (1188), 6 states have internal predecessors, (1188), 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 06:27:49,652 INFO L175 Difference]: Start difference. First operand has 84 places, 91 transitions, 474 flow. Second operand 5 states and 605 transitions. [2023-01-28 06:27:49,652 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 88 places, 136 transitions, 841 flow [2023-01-28 06:27:49,667 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 88 places, 136 transitions, 839 flow, removed 1 selfloop flow, removed 0 redundant places. [2023-01-28 06:27:49,668 INFO L231 Difference]: Finished difference. Result has 91 places, 91 transitions, 483 flow [2023-01-28 06:27:49,668 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=198, PETRI_DIFFERENCE_MINUEND_FLOW=472, PETRI_DIFFERENCE_MINUEND_PLACES=84, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=91, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=85, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=483, PETRI_PLACES=91, PETRI_TRANSITIONS=91} [2023-01-28 06:27:49,668 INFO L281 CegarLoopForPetriNet]: 53 programPoint places, 38 predicate places. [2023-01-28 06:27:49,669 INFO L495 AbstractCegarLoop]: Abstraction has has 91 places, 91 transitions, 483 flow [2023-01-28 06:27:49,669 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 108.0) internal successors, (432), 4 states have internal predecessors, (432), 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 06:27:49,669 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-28 06:27:49,669 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-01-28 06:27:49,669 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-01-28 06:27:49,669 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2023-01-28 06:27:49,669 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-28 06:27:49,669 INFO L85 PathProgramCache]: Analyzing trace with hash -1581251780, now seen corresponding path program 1 times [2023-01-28 06:27:49,669 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-28 06:27:49,669 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1392031413] [2023-01-28 06:27:49,670 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 06:27:49,670 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-28 06:27:49,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-28 06:27:49,695 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 06:27:49,695 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-28 06:27:49,695 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1392031413] [2023-01-28 06:27:49,695 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1392031413] provided 1 perfect and 0 imperfect interpolant sequences [2023-01-28 06:27:49,695 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-01-28 06:27:49,695 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-01-28 06:27:49,695 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1004334143] [2023-01-28 06:27:49,695 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-01-28 06:27:49,696 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-01-28 06:27:49,696 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-28 06:27:49,696 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-01-28 06:27:49,696 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-01-28 06:27:49,696 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 106 out of 198 [2023-01-28 06:27:49,697 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 91 places, 91 transitions, 483 flow. Second operand has 4 states, 4 states have (on average 111.25) internal successors, (445), 4 states have internal predecessors, (445), 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 06:27:49,697 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-01-28 06:27:49,697 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 106 of 198 [2023-01-28 06:27:49,697 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-01-28 06:27:50,171 INFO L130 PetriNetUnfolder]: 3708/6624 cut-off events. [2023-01-28 06:27:50,171 INFO L131 PetriNetUnfolder]: For 8247/8622 co-relation queries the response was YES. [2023-01-28 06:27:50,186 INFO L83 FinitePrefix]: Finished finitePrefix Result has 20100 conditions, 6624 events. 3708/6624 cut-off events. For 8247/8622 co-relation queries the response was YES. Maximal size of possible extension queue 181. Compared 41361 event pairs, 1227 based on Foata normal form. 180/6312 useless extension candidates. Maximal degree in co-relation 20075. Up to 3259 conditions per place. [2023-01-28 06:27:50,195 INFO L137 encePairwiseOnDemand]: 194/198 looper letters, 75 selfloop transitions, 6 changer transitions 52/154 dead transitions. [2023-01-28 06:27:50,195 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 95 places, 154 transitions, 1081 flow [2023-01-28 06:27:50,195 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-01-28 06:27:50,195 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-01-28 06:27:50,196 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 631 transitions. [2023-01-28 06:27:50,197 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6373737373737374 [2023-01-28 06:27:50,197 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 631 transitions. [2023-01-28 06:27:50,197 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 631 transitions. [2023-01-28 06:27:50,197 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-01-28 06:27:50,197 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 631 transitions. [2023-01-28 06:27:50,198 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 126.2) internal successors, (631), 5 states have internal predecessors, (631), 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 06:27:50,200 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 198.0) internal successors, (1188), 6 states have internal predecessors, (1188), 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 06:27:50,200 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 198.0) internal successors, (1188), 6 states have internal predecessors, (1188), 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 06:27:50,200 INFO L175 Difference]: Start difference. First operand has 91 places, 91 transitions, 483 flow. Second operand 5 states and 631 transitions. [2023-01-28 06:27:50,200 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 95 places, 154 transitions, 1081 flow [2023-01-28 06:27:50,216 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 95 places, 154 transitions, 1079 flow, removed 1 selfloop flow, removed 0 redundant places. [2023-01-28 06:27:50,217 INFO L231 Difference]: Finished difference. Result has 97 places, 88 transitions, 478 flow [2023-01-28 06:27:50,218 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=198, PETRI_DIFFERENCE_MINUEND_FLOW=481, PETRI_DIFFERENCE_MINUEND_PLACES=91, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=91, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=85, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=478, PETRI_PLACES=97, PETRI_TRANSITIONS=88} [2023-01-28 06:27:50,218 INFO L281 CegarLoopForPetriNet]: 53 programPoint places, 44 predicate places. [2023-01-28 06:27:50,218 INFO L495 AbstractCegarLoop]: Abstraction has has 97 places, 88 transitions, 478 flow [2023-01-28 06:27:50,218 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 111.25) internal successors, (445), 4 states have internal predecessors, (445), 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 06:27:50,218 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-28 06:27:50,218 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-01-28 06:27:50,219 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-01-28 06:27:50,219 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2023-01-28 06:27:50,219 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-28 06:27:50,219 INFO L85 PathProgramCache]: Analyzing trace with hash -1123222480, now seen corresponding path program 2 times [2023-01-28 06:27:50,219 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-28 06:27:50,219 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1515880879] [2023-01-28 06:27:50,219 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 06:27:50,219 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-28 06:27:50,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-28 06:27:50,244 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 06:27:50,245 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-28 06:27:50,245 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1515880879] [2023-01-28 06:27:50,245 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1515880879] provided 1 perfect and 0 imperfect interpolant sequences [2023-01-28 06:27:50,245 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-01-28 06:27:50,245 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-01-28 06:27:50,245 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [93870002] [2023-01-28 06:27:50,245 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-01-28 06:27:50,245 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-01-28 06:27:50,246 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-28 06:27:50,246 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-01-28 06:27:50,246 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-01-28 06:27:50,246 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 106 out of 198 [2023-01-28 06:27:50,247 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 97 places, 88 transitions, 478 flow. Second operand has 4 states, 4 states have (on average 111.25) internal successors, (445), 4 states have internal predecessors, (445), 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 06:27:50,247 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-01-28 06:27:50,247 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 106 of 198 [2023-01-28 06:27:50,247 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-01-28 06:27:50,450 INFO L130 PetriNetUnfolder]: 1161/2260 cut-off events. [2023-01-28 06:27:50,451 INFO L131 PetriNetUnfolder]: For 3653/3838 co-relation queries the response was YES. [2023-01-28 06:27:50,457 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7078 conditions, 2260 events. 1161/2260 cut-off events. For 3653/3838 co-relation queries the response was YES. Maximal size of possible extension queue 90. Compared 12822 event pairs, 288 based on Foata normal form. 162/2284 useless extension candidates. Maximal degree in co-relation 7050. Up to 694 conditions per place. [2023-01-28 06:27:50,459 INFO L137 encePairwiseOnDemand]: 194/198 looper letters, 0 selfloop transitions, 0 changer transitions 117/117 dead transitions. [2023-01-28 06:27:50,460 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 90 places, 117 transitions, 791 flow [2023-01-28 06:27:50,460 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-01-28 06:27:50,460 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-01-28 06:27:50,461 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 615 transitions. [2023-01-28 06:27:50,462 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6212121212121212 [2023-01-28 06:27:50,462 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 615 transitions. [2023-01-28 06:27:50,462 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 615 transitions. [2023-01-28 06:27:50,462 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-01-28 06:27:50,462 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 615 transitions. [2023-01-28 06:27:50,463 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 123.0) internal successors, (615), 5 states have internal predecessors, (615), 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 06:27:50,465 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 198.0) internal successors, (1188), 6 states have internal predecessors, (1188), 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 06:27:50,466 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 198.0) internal successors, (1188), 6 states have internal predecessors, (1188), 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 06:27:50,466 INFO L175 Difference]: Start difference. First operand has 97 places, 88 transitions, 478 flow. Second operand 5 states and 615 transitions. [2023-01-28 06:27:50,466 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 90 places, 117 transitions, 791 flow [2023-01-28 06:27:50,478 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 80 places, 117 transitions, 717 flow, removed 16 selfloop flow, removed 10 redundant places. [2023-01-28 06:27:50,479 INFO L231 Difference]: Finished difference. Result has 80 places, 0 transitions, 0 flow [2023-01-28 06:27:50,479 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=198, PETRI_DIFFERENCE_MINUEND_FLOW=313, PETRI_DIFFERENCE_MINUEND_PLACES=76, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=67, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=67, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=0, PETRI_PLACES=80, PETRI_TRANSITIONS=0} [2023-01-28 06:27:50,479 INFO L281 CegarLoopForPetriNet]: 53 programPoint places, 27 predicate places. [2023-01-28 06:27:50,479 INFO L495 AbstractCegarLoop]: Abstraction has has 80 places, 0 transitions, 0 flow [2023-01-28 06:27:50,480 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 111.25) internal successors, (445), 4 states have internal predecessors, (445), 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 06:27:50,482 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr2Err0ASSERT_VIOLATIONERROR_FUNCTION (5 of 6 remaining) [2023-01-28 06:27:50,482 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr1Err0ASSERT_VIOLATIONERROR_FUNCTION (4 of 6 remaining) [2023-01-28 06:27:50,482 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (3 of 6 remaining) [2023-01-28 06:27:50,482 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 6 remaining) [2023-01-28 06:27:50,483 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr2Err0ASSERT_VIOLATIONERROR_FUNCTION (1 of 6 remaining) [2023-01-28 06:27:50,483 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr1Err0ASSERT_VIOLATIONERROR_FUNCTION (0 of 6 remaining) [2023-01-28 06:27:50,483 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-01-28 06:27:50,483 INFO L445 BasicCegarLoop]: Path program histogram: [4, 2, 1, 1, 1, 1, 1] [2023-01-28 06:27:50,487 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-01-28 06:27:50,487 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-01-28 06:27:50,490 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.01 06:27:50 BasicIcfg [2023-01-28 06:27:50,490 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-01-28 06:27:50,491 INFO L158 Benchmark]: Toolchain (without parser) took 7096.26ms. Allocated memory was 331.4MB in the beginning and 847.2MB in the end (delta: 515.9MB). Free memory was 274.9MB in the beginning and 473.9MB in the end (delta: -199.0MB). Peak memory consumption was 319.7MB. Max. memory is 16.0GB. [2023-01-28 06:27:50,491 INFO L158 Benchmark]: CDTParser took 0.09ms. Allocated memory is still 331.4MB. Free memory is still 279.7MB. There was no memory consumed. Max. memory is 16.0GB. [2023-01-28 06:27:50,491 INFO L158 Benchmark]: CACSL2BoogieTranslator took 330.88ms. Allocated memory is still 331.4MB. Free memory was 274.6MB in the beginning and 253.9MB in the end (delta: 20.6MB). Peak memory consumption was 21.0MB. Max. memory is 16.0GB. [2023-01-28 06:27:50,491 INFO L158 Benchmark]: Boogie Procedure Inliner took 30.44ms. Allocated memory is still 331.4MB. Free memory was 253.9MB in the beginning and 252.2MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-01-28 06:27:50,491 INFO L158 Benchmark]: Boogie Preprocessor took 18.93ms. Allocated memory is still 331.4MB. Free memory was 252.2MB in the beginning and 250.4MB in the end (delta: 1.8MB). There was no memory consumed. Max. memory is 16.0GB. [2023-01-28 06:27:50,492 INFO L158 Benchmark]: RCFGBuilder took 319.75ms. Allocated memory was 331.4MB in the beginning and 423.6MB in the end (delta: 92.3MB). Free memory was 250.4MB in the beginning and 384.6MB in the end (delta: -134.2MB). Peak memory consumption was 19.4MB. Max. memory is 16.0GB. [2023-01-28 06:27:50,492 INFO L158 Benchmark]: TraceAbstraction took 6392.32ms. Allocated memory was 423.6MB in the beginning and 847.2MB in the end (delta: 423.6MB). Free memory was 384.6MB in the beginning and 473.9MB in the end (delta: -89.3MB). Peak memory consumption was 335.9MB. Max. memory is 16.0GB. [2023-01-28 06:27:50,493 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.09ms. Allocated memory is still 331.4MB. Free memory is still 279.7MB. There was no memory consumed. Max. memory is 16.0GB. * CACSL2BoogieTranslator took 330.88ms. Allocated memory is still 331.4MB. Free memory was 274.6MB in the beginning and 253.9MB in the end (delta: 20.6MB). Peak memory consumption was 21.0MB. Max. memory is 16.0GB. * Boogie Procedure Inliner took 30.44ms. Allocated memory is still 331.4MB. Free memory was 253.9MB in the beginning and 252.2MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * Boogie Preprocessor took 18.93ms. Allocated memory is still 331.4MB. Free memory was 252.2MB in the beginning and 250.4MB in the end (delta: 1.8MB). There was no memory consumed. Max. memory is 16.0GB. * RCFGBuilder took 319.75ms. Allocated memory was 331.4MB in the beginning and 423.6MB in the end (delta: 92.3MB). Free memory was 250.4MB in the beginning and 384.6MB in the end (delta: -134.2MB). Peak memory consumption was 19.4MB. Max. memory is 16.0GB. * TraceAbstraction took 6392.32ms. Allocated memory was 423.6MB in the beginning and 847.2MB in the end (delta: 423.6MB). Free memory was 384.6MB in the beginning and 473.9MB in the end (delta: -89.3MB). Peak memory consumption was 335.9MB. Max. memory is 16.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 1.3s, 101 PlacesBefore, 53 PlacesAfterwards, 118 TransitionsBefore, 64 TransitionsAfterwards, 4988 CoEnabledTransitionPairs, 5 FixpointIterations, 18 TrivialSequentialCompositions, 32 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 13 ConcurrentYvCompositions, 6 ChoiceCompositions, 69 TotalNumberOfCompositions, 14233 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 5643, independent: 5307, independent conditional: 0, independent unconditional: 5307, dependent: 336, dependent conditional: 0, dependent unconditional: 336, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 2194, independent: 2148, independent conditional: 0, independent unconditional: 2148, dependent: 46, dependent conditional: 0, dependent unconditional: 46, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 5643, independent: 3159, independent conditional: 0, independent unconditional: 3159, dependent: 290, dependent conditional: 0, dependent unconditional: 290, unknown: 2194, unknown conditional: 0, unknown unconditional: 2194] , Statistics on independence cache: Total cache size (in pairs): 397, Positive cache size: 364, Positive conditional cache size: 0, Positive unconditional cache size: 364, Negative cache size: 33, Negative conditional cache size: 0, Negative unconditional cache size: 33, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - PositiveResult [Line: 834]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 764]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 172 locations, 6 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: 6.3s, OverallIterations: 11, TraceHistogramMax: 1, PathProgramHistogramMax: 4, EmptinessCheckTime: 0.0s, AutomataDifference: 4.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 1.3s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 504 SdHoareTripleChecker+Valid, 0.8s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 504 mSDsluCounter, 77 SdHoareTripleChecker+Invalid, 0.6s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 24 mSDsCounter, 22 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1669 IncrementalHoareTripleChecker+Invalid, 1691 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 22 mSolverCounterUnsat, 53 mSDtfsCounter, 1669 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 49 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=483occurred in iteration=9, InterpolantAutomatonStates: 46, 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, 0.1s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 196 NumberOfCodeBlocks, 196 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 185 ConstructedInterpolants, 0 QuantifiedInterpolants, 313 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 11 InterpolantComputations, 11 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 2 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2023-01-28 06:27:50,510 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...