/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-C-DAC/pthread-demo-datarace-1.i -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-b8dbc81 [2023-01-28 07:40:22,932 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-01-28 07:40:22,934 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-01-28 07:40:22,959 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-01-28 07:40:22,960 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-01-28 07:40:22,962 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-01-28 07:40:22,967 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-01-28 07:40:22,969 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-01-28 07:40:22,970 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-01-28 07:40:22,975 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-01-28 07:40:22,976 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-01-28 07:40:22,976 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-01-28 07:40:22,976 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-01-28 07:40:22,977 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-01-28 07:40:22,977 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-01-28 07:40:22,978 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-01-28 07:40:22,978 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-01-28 07:40:22,979 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-01-28 07:40:22,980 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-01-28 07:40:22,981 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-01-28 07:40:22,981 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-01-28 07:40:22,985 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-01-28 07:40:22,986 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-01-28 07:40:22,987 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-01-28 07:40:22,994 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-01-28 07:40:22,994 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-01-28 07:40:22,994 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-01-28 07:40:22,995 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-01-28 07:40:22,996 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-01-28 07:40:22,996 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-01-28 07:40:22,996 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-01-28 07:40:22,997 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-01-28 07:40:22,998 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-01-28 07:40:22,999 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-01-28 07:40:23,000 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-01-28 07:40:23,000 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-01-28 07:40:23,001 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-01-28 07:40:23,001 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-01-28 07:40:23,001 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-01-28 07:40:23,001 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-01-28 07:40:23,002 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-01-28 07:40:23,002 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 07:40:23,022 INFO L113 SettingsManager]: Loading preferences was successful [2023-01-28 07:40:23,022 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-01-28 07:40:23,023 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-01-28 07:40:23,023 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-01-28 07:40:23,023 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-01-28 07:40:23,023 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-01-28 07:40:23,023 INFO L138 SettingsManager]: * Use SBE=true [2023-01-28 07:40:23,023 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-01-28 07:40:23,023 INFO L138 SettingsManager]: * sizeof long=4 [2023-01-28 07:40:23,023 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-01-28 07:40:23,024 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-01-28 07:40:23,024 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-01-28 07:40:23,024 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-01-28 07:40:23,024 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-01-28 07:40:23,024 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-01-28 07:40:23,024 INFO L138 SettingsManager]: * sizeof long double=12 [2023-01-28 07:40:23,024 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-01-28 07:40:23,024 INFO L138 SettingsManager]: * Use constant arrays=true [2023-01-28 07:40:23,024 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-01-28 07:40:23,024 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-01-28 07:40:23,027 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-01-28 07:40:23,027 INFO L138 SettingsManager]: * To the following directory=./dump/ [2023-01-28 07:40:23,027 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-01-28 07:40:23,027 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-01-28 07:40:23,027 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-01-28 07:40:23,027 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-01-28 07:40:23,027 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-01-28 07:40:23,027 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-01-28 07:40:23,028 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-01-28 07:40:23,028 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-01-28 07:40:23,028 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-01-28 07:40:23,028 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: When to check the insufficient erros location relative to the other error locations -> AFTER [2023-01-28 07:40:23,175 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-01-28 07:40:23,191 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-01-28 07:40:23,192 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-01-28 07:40:23,194 INFO L271 PluginConnector]: Initializing CDTParser... [2023-01-28 07:40:23,195 INFO L275 PluginConnector]: CDTParser initialized [2023-01-28 07:40:23,195 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-C-DAC/pthread-demo-datarace-1.i [2023-01-28 07:40:24,126 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-01-28 07:40:24,372 INFO L351 CDTParser]: Found 1 translation units. [2023-01-28 07:40:24,372 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-C-DAC/pthread-demo-datarace-1.i [2023-01-28 07:40:24,388 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f65f96430/25ab8c27705a40aa8cfa49829b70a2f3/FLAG0f255553e [2023-01-28 07:40:24,397 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f65f96430/25ab8c27705a40aa8cfa49829b70a2f3 [2023-01-28 07:40:24,399 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-01-28 07:40:24,400 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2023-01-28 07:40:24,400 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-01-28 07:40:24,400 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-01-28 07:40:24,402 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-01-28 07:40:24,403 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.01 07:40:24" (1/1) ... [2023-01-28 07:40:24,403 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@31b77d9d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 07:40:24, skipping insertion in model container [2023-01-28 07:40:24,403 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.01 07:40:24" (1/1) ... [2023-01-28 07:40:24,415 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-01-28 07:40:24,454 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-01-28 07:40:24,595 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-C-DAC/pthread-demo-datarace-1.i[820,833] [2023-01-28 07:40:24,836 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-01-28 07:40:24,843 INFO L203 MainTranslator]: Completed pre-run [2023-01-28 07:40:24,850 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-C-DAC/pthread-demo-datarace-1.i[820,833] [2023-01-28 07:40:24,870 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-01-28 07:40:24,917 INFO L208 MainTranslator]: Completed translation [2023-01-28 07:40:24,917 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 07:40:24 WrapperNode [2023-01-28 07:40:24,917 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-01-28 07:40:24,918 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-01-28 07:40:24,918 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-01-28 07:40:24,918 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-01-28 07:40:24,922 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 07:40:24" (1/1) ... [2023-01-28 07:40:24,951 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 07:40:24" (1/1) ... [2023-01-28 07:40:24,967 INFO L138 Inliner]: procedures = 364, calls = 20, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 62 [2023-01-28 07:40:24,967 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-01-28 07:40:24,968 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-01-28 07:40:24,968 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-01-28 07:40:24,968 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-01-28 07:40:24,973 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 07:40:24" (1/1) ... [2023-01-28 07:40:24,973 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 07:40:24" (1/1) ... [2023-01-28 07:40:24,975 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 07:40:24" (1/1) ... [2023-01-28 07:40:24,975 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 07:40:24" (1/1) ... [2023-01-28 07:40:24,978 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 07:40:24" (1/1) ... [2023-01-28 07:40:24,980 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 07:40:24" (1/1) ... [2023-01-28 07:40:24,981 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 07:40:24" (1/1) ... [2023-01-28 07:40:24,982 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 07:40:24" (1/1) ... [2023-01-28 07:40:24,983 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-01-28 07:40:24,984 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-01-28 07:40:24,984 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-01-28 07:40:24,984 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-01-28 07:40:24,984 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 07:40:24" (1/1) ... [2023-01-28 07:40:24,988 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-01-28 07:40:25,002 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-01-28 07:40:25,025 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 07:40:25,029 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 07:40:25,066 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-01-28 07:40:25,066 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-01-28 07:40:25,066 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-01-28 07:40:25,066 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-01-28 07:40:25,066 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-01-28 07:40:25,066 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-01-28 07:40:25,066 INFO L130 BoogieDeclarations]: Found specification of procedure thread_function_mutex [2023-01-28 07:40:25,067 INFO L138 BoogieDeclarations]: Found implementation of procedure thread_function_mutex [2023-01-28 07:40:25,067 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-01-28 07:40:25,067 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-01-28 07:40:25,067 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-01-28 07:40:25,068 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 07:40:25,222 INFO L236 CfgBuilder]: Building ICFG [2023-01-28 07:40:25,224 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-01-28 07:40:25,342 INFO L277 CfgBuilder]: Performing block encoding [2023-01-28 07:40:25,347 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-01-28 07:40:25,347 INFO L302 CfgBuilder]: Removed 2 assume(true) statements. [2023-01-28 07:40:25,348 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.01 07:40:25 BoogieIcfgContainer [2023-01-28 07:40:25,348 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-01-28 07:40:25,350 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-01-28 07:40:25,350 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-01-28 07:40:25,352 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-01-28 07:40:25,352 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.01 07:40:24" (1/3) ... [2023-01-28 07:40:25,352 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@346d3743 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.01 07:40:25, skipping insertion in model container [2023-01-28 07:40:25,352 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 07:40:24" (2/3) ... [2023-01-28 07:40:25,353 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@346d3743 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.01 07:40:25, skipping insertion in model container [2023-01-28 07:40:25,353 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.01 07:40:25" (3/3) ... [2023-01-28 07:40:25,353 INFO L112 eAbstractionObserver]: Analyzing ICFG pthread-demo-datarace-1.i [2023-01-28 07:40:25,364 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-01-28 07:40:25,365 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-01-28 07:40:25,365 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-01-28 07:40:25,401 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2023-01-28 07:40:25,427 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 83 places, 86 transitions, 180 flow [2023-01-28 07:40:25,455 INFO L130 PetriNetUnfolder]: 7/85 cut-off events. [2023-01-28 07:40:25,455 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2023-01-28 07:40:25,460 INFO L83 FinitePrefix]: Finished finitePrefix Result has 90 conditions, 85 events. 7/85 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 82 event pairs, 0 based on Foata normal form. 0/77 useless extension candidates. Maximal degree in co-relation 38. Up to 2 conditions per place. [2023-01-28 07:40:25,460 INFO L82 GeneralOperation]: Start removeDead. Operand has 83 places, 86 transitions, 180 flow [2023-01-28 07:40:25,463 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 75 places, 77 transitions, 160 flow [2023-01-28 07:40:25,465 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-01-28 07:40:25,470 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 75 places, 77 transitions, 160 flow [2023-01-28 07:40:25,472 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 75 places, 77 transitions, 160 flow [2023-01-28 07:40:25,472 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 75 places, 77 transitions, 160 flow [2023-01-28 07:40:25,514 INFO L130 PetriNetUnfolder]: 6/77 cut-off events. [2023-01-28 07:40:25,514 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2023-01-28 07:40:25,515 INFO L83 FinitePrefix]: Finished finitePrefix Result has 82 conditions, 77 events. 6/77 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 77 event pairs, 0 based on Foata normal form. 0/71 useless extension candidates. Maximal degree in co-relation 38. Up to 2 conditions per place. [2023-01-28 07:40:25,516 INFO L119 LiptonReduction]: Number of co-enabled transitions 722 [2023-01-28 07:40:26,884 INFO L134 LiptonReduction]: Checked pairs total: 866 [2023-01-28 07:40:26,884 INFO L136 LiptonReduction]: Total number of compositions: 68 [2023-01-28 07:40:26,894 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-01-28 07:40:26,898 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;@1b294ccf, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-01-28 07:40:26,898 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2023-01-28 07:40:26,901 INFO L130 PetriNetUnfolder]: 2/14 cut-off events. [2023-01-28 07:40:26,901 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2023-01-28 07:40:26,901 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-28 07:40:26,901 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-01-28 07:40:26,902 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-01-28 07:40:26,905 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-28 07:40:26,905 INFO L85 PathProgramCache]: Analyzing trace with hash -1683658225, now seen corresponding path program 1 times [2023-01-28 07:40:26,914 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-28 07:40:26,914 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1300944878] [2023-01-28 07:40:26,914 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 07:40:26,915 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-28 07:40:26,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-28 07:40:27,059 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 07:40:27,060 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-28 07:40:27,060 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1300944878] [2023-01-28 07:40:27,060 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1300944878] provided 1 perfect and 0 imperfect interpolant sequences [2023-01-28 07:40:27,061 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-01-28 07:40:27,061 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-01-28 07:40:27,062 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [595846076] [2023-01-28 07:40:27,062 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-01-28 07:40:27,067 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-01-28 07:40:27,070 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-28 07:40:27,083 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-01-28 07:40:27,083 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-01-28 07:40:27,084 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 70 out of 154 [2023-01-28 07:40:27,085 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 17 places, 15 transitions, 36 flow. Second operand has 3 states, 3 states have (on average 72.66666666666667) internal successors, (218), 3 states have internal predecessors, (218), 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 07:40:27,085 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-01-28 07:40:27,085 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 70 of 154 [2023-01-28 07:40:27,086 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-01-28 07:40:27,128 INFO L130 PetriNetUnfolder]: 41/86 cut-off events. [2023-01-28 07:40:27,128 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2023-01-28 07:40:27,128 INFO L83 FinitePrefix]: Finished finitePrefix Result has 176 conditions, 86 events. 41/86 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 205 event pairs, 15 based on Foata normal form. 0/72 useless extension candidates. Maximal degree in co-relation 162. Up to 53 conditions per place. [2023-01-28 07:40:27,129 INFO L137 encePairwiseOnDemand]: 151/154 looper letters, 20 selfloop transitions, 2 changer transitions 0/23 dead transitions. [2023-01-28 07:40:27,129 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 19 places, 23 transitions, 96 flow [2023-01-28 07:40:27,130 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-01-28 07:40:27,132 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-01-28 07:40:27,137 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 233 transitions. [2023-01-28 07:40:27,138 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5043290043290043 [2023-01-28 07:40:27,138 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 233 transitions. [2023-01-28 07:40:27,139 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 233 transitions. [2023-01-28 07:40:27,139 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-01-28 07:40:27,141 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 233 transitions. [2023-01-28 07:40:27,142 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 77.66666666666667) internal successors, (233), 3 states have internal predecessors, (233), 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 07:40:27,145 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 154.0) internal successors, (616), 4 states have internal predecessors, (616), 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 07:40:27,145 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 154.0) internal successors, (616), 4 states have internal predecessors, (616), 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 07:40:27,146 INFO L175 Difference]: Start difference. First operand has 17 places, 15 transitions, 36 flow. Second operand 3 states and 233 transitions. [2023-01-28 07:40:27,147 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 19 places, 23 transitions, 96 flow [2023-01-28 07:40:27,148 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 17 places, 23 transitions, 92 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-01-28 07:40:27,149 INFO L231 Difference]: Finished difference. Result has 18 places, 16 transitions, 44 flow [2023-01-28 07:40:27,150 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=154, PETRI_DIFFERENCE_MINUEND_FLOW=32, PETRI_DIFFERENCE_MINUEND_PLACES=15, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=15, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=13, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=44, PETRI_PLACES=18, PETRI_TRANSITIONS=16} [2023-01-28 07:40:27,152 INFO L281 CegarLoopForPetriNet]: 17 programPoint places, 1 predicate places. [2023-01-28 07:40:27,152 INFO L495 AbstractCegarLoop]: Abstraction has has 18 places, 16 transitions, 44 flow [2023-01-28 07:40:27,153 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 72.66666666666667) internal successors, (218), 3 states have internal predecessors, (218), 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 07:40:27,153 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-28 07:40:27,153 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-01-28 07:40:27,153 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-01-28 07:40:27,153 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-01-28 07:40:27,154 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-28 07:40:27,154 INFO L85 PathProgramCache]: Analyzing trace with hash -1559967075, now seen corresponding path program 1 times [2023-01-28 07:40:27,154 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-28 07:40:27,154 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1750336684] [2023-01-28 07:40:27,154 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 07:40:27,154 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-28 07:40:27,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-28 07:40:27,235 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-01-28 07:40:27,235 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-28 07:40:27,235 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1750336684] [2023-01-28 07:40:27,235 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1750336684] provided 1 perfect and 0 imperfect interpolant sequences [2023-01-28 07:40:27,236 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-01-28 07:40:27,236 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-01-28 07:40:27,236 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2000493197] [2023-01-28 07:40:27,236 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-01-28 07:40:27,237 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-01-28 07:40:27,237 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-28 07:40:27,237 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-01-28 07:40:27,237 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-01-28 07:40:27,238 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 69 out of 154 [2023-01-28 07:40:27,238 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 18 places, 16 transitions, 44 flow. Second operand has 3 states, 3 states have (on average 73.0) internal successors, (219), 3 states have internal predecessors, (219), 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 07:40:27,238 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-01-28 07:40:27,238 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 69 of 154 [2023-01-28 07:40:27,238 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-01-28 07:40:27,276 INFO L130 PetriNetUnfolder]: 61/143 cut-off events. [2023-01-28 07:40:27,276 INFO L131 PetriNetUnfolder]: For 28/28 co-relation queries the response was YES. [2023-01-28 07:40:27,277 INFO L83 FinitePrefix]: Finished finitePrefix Result has 302 conditions, 143 events. 61/143 cut-off events. For 28/28 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 486 event pairs, 27 based on Foata normal form. 0/133 useless extension candidates. Maximal degree in co-relation 92. Up to 85 conditions per place. [2023-01-28 07:40:27,279 INFO L137 encePairwiseOnDemand]: 151/154 looper letters, 22 selfloop transitions, 2 changer transitions 0/25 dead transitions. [2023-01-28 07:40:27,279 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 20 places, 25 transitions, 120 flow [2023-01-28 07:40:27,279 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-01-28 07:40:27,279 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-01-28 07:40:27,282 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 230 transitions. [2023-01-28 07:40:27,282 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.49783549783549785 [2023-01-28 07:40:27,282 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 230 transitions. [2023-01-28 07:40:27,282 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 230 transitions. [2023-01-28 07:40:27,283 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-01-28 07:40:27,283 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 230 transitions. [2023-01-28 07:40:27,284 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 76.66666666666667) internal successors, (230), 3 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 07:40:27,284 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 154.0) internal successors, (616), 4 states have internal predecessors, (616), 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 07:40:27,285 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 154.0) internal successors, (616), 4 states have internal predecessors, (616), 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 07:40:27,285 INFO L175 Difference]: Start difference. First operand has 18 places, 16 transitions, 44 flow. Second operand 3 states and 230 transitions. [2023-01-28 07:40:27,285 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 20 places, 25 transitions, 120 flow [2023-01-28 07:40:27,285 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 19 places, 25 transitions, 116 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-01-28 07:40:27,286 INFO L231 Difference]: Finished difference. Result has 20 places, 17 transitions, 54 flow [2023-01-28 07:40:27,286 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=154, PETRI_DIFFERENCE_MINUEND_FLOW=42, PETRI_DIFFERENCE_MINUEND_PLACES=17, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=16, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=14, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=54, PETRI_PLACES=20, PETRI_TRANSITIONS=17} [2023-01-28 07:40:27,286 INFO L281 CegarLoopForPetriNet]: 17 programPoint places, 3 predicate places. [2023-01-28 07:40:27,286 INFO L495 AbstractCegarLoop]: Abstraction has has 20 places, 17 transitions, 54 flow [2023-01-28 07:40:27,286 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 73.0) internal successors, (219), 3 states have internal predecessors, (219), 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 07:40:27,286 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-28 07:40:27,287 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-01-28 07:40:27,287 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-01-28 07:40:27,287 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-01-28 07:40:27,287 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-28 07:40:27,287 INFO L85 PathProgramCache]: Analyzing trace with hash 517091689, now seen corresponding path program 1 times [2023-01-28 07:40:27,287 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-28 07:40:27,287 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [757668250] [2023-01-28 07:40:27,287 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 07:40:27,288 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-28 07:40:27,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-28 07:40:27,379 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-01-28 07:40:27,379 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-28 07:40:27,379 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [757668250] [2023-01-28 07:40:27,379 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [757668250] provided 0 perfect and 1 imperfect interpolant sequences [2023-01-28 07:40:27,379 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1635711690] [2023-01-28 07:40:27,380 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 07:40:27,380 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-01-28 07:40:27,380 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-01-28 07:40:27,382 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-01-28 07:40:27,393 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-01-28 07:40:27,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-28 07:40:27,457 INFO L263 TraceCheckSpWp]: Trace formula consists of 132 conjuncts, 3 conjunts are in the unsatisfiable core [2023-01-28 07:40:27,459 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-01-28 07:40:27,507 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-01-28 07:40:27,507 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-01-28 07:40:27,539 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-01-28 07:40:27,540 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1635711690] provided 0 perfect and 2 imperfect interpolant sequences [2023-01-28 07:40:27,540 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-01-28 07:40:27,540 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 7 [2023-01-28 07:40:27,540 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [348040932] [2023-01-28 07:40:27,540 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-01-28 07:40:27,540 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-01-28 07:40:27,541 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-28 07:40:27,541 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-01-28 07:40:27,541 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2023-01-28 07:40:27,542 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 69 out of 154 [2023-01-28 07:40:27,543 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 20 places, 17 transitions, 54 flow. Second operand has 7 states, 7 states have (on average 72.57142857142857) internal successors, (508), 7 states have internal predecessors, (508), 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 07:40:27,543 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-01-28 07:40:27,543 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 69 of 154 [2023-01-28 07:40:27,543 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-01-28 07:40:27,620 INFO L130 PetriNetUnfolder]: 111/264 cut-off events. [2023-01-28 07:40:27,621 INFO L131 PetriNetUnfolder]: For 113/113 co-relation queries the response was YES. [2023-01-28 07:40:27,623 INFO L83 FinitePrefix]: Finished finitePrefix Result has 608 conditions, 264 events. 111/264 cut-off events. For 113/113 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 930 event pairs, 18 based on Foata normal form. 30/294 useless extension candidates. Maximal degree in co-relation 198. Up to 55 conditions per place. [2023-01-28 07:40:27,624 INFO L137 encePairwiseOnDemand]: 150/154 looper letters, 44 selfloop transitions, 6 changer transitions 0/51 dead transitions. [2023-01-28 07:40:27,625 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 25 places, 51 transitions, 258 flow [2023-01-28 07:40:27,625 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-01-28 07:40:27,625 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-01-28 07:40:27,626 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 462 transitions. [2023-01-28 07:40:27,626 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5 [2023-01-28 07:40:27,626 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 462 transitions. [2023-01-28 07:40:27,626 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 462 transitions. [2023-01-28 07:40:27,626 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-01-28 07:40:27,627 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 462 transitions. [2023-01-28 07:40:27,628 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 77.0) internal successors, (462), 6 states have internal predecessors, (462), 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 07:40:27,631 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 154.0) internal successors, (1078), 7 states have internal predecessors, (1078), 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 07:40:27,631 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 154.0) internal successors, (1078), 7 states have internal predecessors, (1078), 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 07:40:27,631 INFO L175 Difference]: Start difference. First operand has 20 places, 17 transitions, 54 flow. Second operand 6 states and 462 transitions. [2023-01-28 07:40:27,631 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 25 places, 51 transitions, 258 flow [2023-01-28 07:40:27,633 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 24 places, 51 transitions, 256 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-01-28 07:40:27,633 INFO L231 Difference]: Finished difference. Result has 28 places, 20 transitions, 92 flow [2023-01-28 07:40:27,633 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=154, PETRI_DIFFERENCE_MINUEND_FLOW=52, PETRI_DIFFERENCE_MINUEND_PLACES=19, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=17, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=13, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=92, PETRI_PLACES=28, PETRI_TRANSITIONS=20} [2023-01-28 07:40:27,635 INFO L281 CegarLoopForPetriNet]: 17 programPoint places, 11 predicate places. [2023-01-28 07:40:27,635 INFO L495 AbstractCegarLoop]: Abstraction has has 28 places, 20 transitions, 92 flow [2023-01-28 07:40:27,636 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 72.57142857142857) internal successors, (508), 7 states have internal predecessors, (508), 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 07:40:27,636 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-28 07:40:27,636 INFO L208 CegarLoopForPetriNet]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-01-28 07:40:27,653 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2023-01-28 07:40:27,840 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-01-28 07:40:27,840 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-01-28 07:40:27,841 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-28 07:40:27,841 INFO L85 PathProgramCache]: Analyzing trace with hash 359100007, now seen corresponding path program 2 times [2023-01-28 07:40:27,841 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-28 07:40:27,841 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [268185328] [2023-01-28 07:40:27,841 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 07:40:27,841 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-28 07:40:27,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-28 07:40:27,944 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 4 proven. 1 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2023-01-28 07:40:27,945 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-28 07:40:27,945 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [268185328] [2023-01-28 07:40:27,945 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [268185328] provided 0 perfect and 1 imperfect interpolant sequences [2023-01-28 07:40:27,945 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [287625292] [2023-01-28 07:40:27,945 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-01-28 07:40:27,945 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-01-28 07:40:27,946 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-01-28 07:40:27,947 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-01-28 07:40:27,949 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-01-28 07:40:28,012 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-01-28 07:40:28,012 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-01-28 07:40:28,030 INFO L263 TraceCheckSpWp]: Trace formula consists of 177 conjuncts, 6 conjunts are in the unsatisfiable core [2023-01-28 07:40:28,031 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-01-28 07:40:28,069 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-01-28 07:40:28,069 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-01-28 07:40:28,139 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-01-28 07:40:28,140 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [287625292] provided 0 perfect and 2 imperfect interpolant sequences [2023-01-28 07:40:28,140 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-01-28 07:40:28,140 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 7, 7] total 14 [2023-01-28 07:40:28,140 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1240456714] [2023-01-28 07:40:28,140 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-01-28 07:40:28,140 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-01-28 07:40:28,141 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-28 07:40:28,141 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-01-28 07:40:28,141 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=111, Unknown=0, NotChecked=0, Total=182 [2023-01-28 07:40:28,142 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 63 out of 154 [2023-01-28 07:40:28,143 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 28 places, 20 transitions, 92 flow. Second operand has 14 states, 14 states have (on average 66.21428571428571) internal successors, (927), 14 states have internal predecessors, (927), 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 07:40:28,143 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-01-28 07:40:28,143 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 63 of 154 [2023-01-28 07:40:28,143 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-01-28 07:40:28,573 INFO L130 PetriNetUnfolder]: 323/748 cut-off events. [2023-01-28 07:40:28,573 INFO L131 PetriNetUnfolder]: For 1511/1511 co-relation queries the response was YES. [2023-01-28 07:40:28,575 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2276 conditions, 748 events. 323/748 cut-off events. For 1511/1511 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 3110 event pairs, 10 based on Foata normal form. 107/855 useless extension candidates. Maximal degree in co-relation 588. Up to 168 conditions per place. [2023-01-28 07:40:28,578 INFO L137 encePairwiseOnDemand]: 147/154 looper letters, 158 selfloop transitions, 69 changer transitions 0/228 dead transitions. [2023-01-28 07:40:28,578 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 61 places, 228 transitions, 1346 flow [2023-01-28 07:40:28,579 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2023-01-28 07:40:28,579 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2023-01-28 07:40:28,583 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 2398 transitions. [2023-01-28 07:40:28,584 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4579831932773109 [2023-01-28 07:40:28,584 INFO L72 ComplementDD]: Start complementDD. Operand 34 states and 2398 transitions. [2023-01-28 07:40:28,584 INFO L73 IsDeterministic]: Start isDeterministic. Operand 34 states and 2398 transitions. [2023-01-28 07:40:28,585 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-01-28 07:40:28,586 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 34 states and 2398 transitions. [2023-01-28 07:40:28,591 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 35 states, 34 states have (on average 70.52941176470588) internal successors, (2398), 34 states have internal predecessors, (2398), 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 07:40:28,597 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 35 states, 35 states have (on average 154.0) internal successors, (5390), 35 states have internal predecessors, (5390), 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 07:40:28,599 INFO L81 ComplementDD]: Finished complementDD. Result has 35 states, 35 states have (on average 154.0) internal successors, (5390), 35 states have internal predecessors, (5390), 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 07:40:28,599 INFO L175 Difference]: Start difference. First operand has 28 places, 20 transitions, 92 flow. Second operand 34 states and 2398 transitions. [2023-01-28 07:40:28,599 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 61 places, 228 transitions, 1346 flow [2023-01-28 07:40:28,606 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 60 places, 228 transitions, 1286 flow, removed 27 selfloop flow, removed 1 redundant places. [2023-01-28 07:40:28,609 INFO L231 Difference]: Finished difference. Result has 85 places, 82 transitions, 724 flow [2023-01-28 07:40:28,609 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=154, PETRI_DIFFERENCE_MINUEND_FLOW=84, PETRI_DIFFERENCE_MINUEND_PLACES=27, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=20, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=11, PETRI_DIFFERENCE_SUBTRAHEND_STATES=34, PETRI_FLOW=724, PETRI_PLACES=85, PETRI_TRANSITIONS=82} [2023-01-28 07:40:28,610 INFO L281 CegarLoopForPetriNet]: 17 programPoint places, 68 predicate places. [2023-01-28 07:40:28,610 INFO L495 AbstractCegarLoop]: Abstraction has has 85 places, 82 transitions, 724 flow [2023-01-28 07:40:28,610 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 66.21428571428571) internal successors, (927), 14 states have internal predecessors, (927), 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 07:40:28,610 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-28 07:40:28,611 INFO L208 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2023-01-28 07:40:28,619 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-01-28 07:40:28,819 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable3 [2023-01-28 07:40:28,819 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-01-28 07:40:28,820 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-28 07:40:28,820 INFO L85 PathProgramCache]: Analyzing trace with hash -519767537, now seen corresponding path program 3 times [2023-01-28 07:40:28,820 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-28 07:40:28,820 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1487609384] [2023-01-28 07:40:28,820 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 07:40:28,820 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-28 07:40:28,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-28 07:40:28,943 INFO L134 CoverageAnalysis]: Checked inductivity of 151 backedges. 10 proven. 6 refuted. 0 times theorem prover too weak. 135 trivial. 0 not checked. [2023-01-28 07:40:28,943 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-28 07:40:28,943 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1487609384] [2023-01-28 07:40:28,943 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1487609384] provided 0 perfect and 1 imperfect interpolant sequences [2023-01-28 07:40:28,944 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [763266147] [2023-01-28 07:40:28,944 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-01-28 07:40:28,944 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-01-28 07:40:28,944 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-01-28 07:40:28,945 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-01-28 07:40:28,947 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-01-28 07:40:29,017 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2023-01-28 07:40:29,017 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-01-28 07:40:29,018 INFO L263 TraceCheckSpWp]: Trace formula consists of 168 conjuncts, 4 conjunts are in the unsatisfiable core [2023-01-28 07:40:29,019 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-01-28 07:40:29,058 INFO L134 CoverageAnalysis]: Checked inductivity of 151 backedges. 10 proven. 6 refuted. 0 times theorem prover too weak. 135 trivial. 0 not checked. [2023-01-28 07:40:29,058 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-01-28 07:40:29,102 INFO L134 CoverageAnalysis]: Checked inductivity of 151 backedges. 10 proven. 6 refuted. 0 times theorem prover too weak. 135 trivial. 0 not checked. [2023-01-28 07:40:29,102 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [763266147] provided 0 perfect and 2 imperfect interpolant sequences [2023-01-28 07:40:29,102 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-01-28 07:40:29,103 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 9 [2023-01-28 07:40:29,103 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1131068857] [2023-01-28 07:40:29,103 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-01-28 07:40:29,103 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-01-28 07:40:29,103 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-28 07:40:29,104 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-01-28 07:40:29,104 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=36, Unknown=0, NotChecked=0, Total=72 [2023-01-28 07:40:29,104 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 70 out of 154 [2023-01-28 07:40:29,105 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 85 places, 82 transitions, 724 flow. Second operand has 9 states, 9 states have (on average 74.0) internal successors, (666), 9 states have internal predecessors, (666), 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 07:40:29,105 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-01-28 07:40:29,105 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 70 of 154 [2023-01-28 07:40:29,105 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-01-28 07:40:29,262 INFO L130 PetriNetUnfolder]: 622/1299 cut-off events. [2023-01-28 07:40:29,262 INFO L131 PetriNetUnfolder]: For 19768/19770 co-relation queries the response was YES. [2023-01-28 07:40:29,266 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6866 conditions, 1299 events. 622/1299 cut-off events. For 19768/19770 co-relation queries the response was YES. Maximal size of possible extension queue 29. Compared 6285 event pairs, 78 based on Foata normal form. 94/1393 useless extension candidates. Maximal degree in co-relation 5480. Up to 324 conditions per place. [2023-01-28 07:40:29,271 INFO L137 encePairwiseOnDemand]: 150/154 looper letters, 128 selfloop transitions, 38 changer transitions 0/167 dead transitions. [2023-01-28 07:40:29,271 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 92 places, 167 transitions, 1986 flow [2023-01-28 07:40:29,271 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-01-28 07:40:29,271 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2023-01-28 07:40:29,272 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 623 transitions. [2023-01-28 07:40:29,273 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5056818181818182 [2023-01-28 07:40:29,273 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 623 transitions. [2023-01-28 07:40:29,273 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 623 transitions. [2023-01-28 07:40:29,273 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-01-28 07:40:29,273 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 623 transitions. [2023-01-28 07:40:29,274 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 77.875) internal successors, (623), 8 states have internal predecessors, (623), 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 07:40:29,275 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 154.0) internal successors, (1386), 9 states have internal predecessors, (1386), 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 07:40:29,275 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 154.0) internal successors, (1386), 9 states have internal predecessors, (1386), 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 07:40:29,275 INFO L175 Difference]: Start difference. First operand has 85 places, 82 transitions, 724 flow. Second operand 8 states and 623 transitions. [2023-01-28 07:40:29,276 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 92 places, 167 transitions, 1986 flow [2023-01-28 07:40:29,292 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 88 places, 167 transitions, 1900 flow, removed 11 selfloop flow, removed 4 redundant places. [2023-01-28 07:40:29,294 INFO L231 Difference]: Finished difference. Result has 93 places, 86 transitions, 860 flow [2023-01-28 07:40:29,294 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=154, PETRI_DIFFERENCE_MINUEND_FLOW=662, PETRI_DIFFERENCE_MINUEND_PLACES=81, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=82, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=34, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=47, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=860, PETRI_PLACES=93, PETRI_TRANSITIONS=86} [2023-01-28 07:40:29,294 INFO L281 CegarLoopForPetriNet]: 17 programPoint places, 76 predicate places. [2023-01-28 07:40:29,294 INFO L495 AbstractCegarLoop]: Abstraction has has 93 places, 86 transitions, 860 flow [2023-01-28 07:40:29,295 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 74.0) internal successors, (666), 9 states have internal predecessors, (666), 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 07:40:29,295 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-28 07:40:29,295 INFO L208 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1] [2023-01-28 07:40:29,299 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2023-01-28 07:40:29,499 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-01-28 07:40:29,500 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-01-28 07:40:29,500 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-28 07:40:29,500 INFO L85 PathProgramCache]: Analyzing trace with hash -1170256247, now seen corresponding path program 4 times [2023-01-28 07:40:29,500 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-28 07:40:29,500 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1773456606] [2023-01-28 07:40:29,501 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 07:40:29,501 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-28 07:40:29,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-28 07:40:29,747 INFO L134 CoverageAnalysis]: Checked inductivity of 211 backedges. 0 proven. 145 refuted. 0 times theorem prover too weak. 66 trivial. 0 not checked. [2023-01-28 07:40:29,747 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-28 07:40:29,747 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1773456606] [2023-01-28 07:40:29,747 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1773456606] provided 0 perfect and 1 imperfect interpolant sequences [2023-01-28 07:40:29,747 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1690500831] [2023-01-28 07:40:29,747 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2023-01-28 07:40:29,748 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-01-28 07:40:29,748 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-01-28 07:40:29,749 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-01-28 07:40:29,759 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-01-28 07:40:29,911 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2023-01-28 07:40:29,912 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-01-28 07:40:29,913 INFO L263 TraceCheckSpWp]: Trace formula consists of 372 conjuncts, 12 conjunts are in the unsatisfiable core [2023-01-28 07:40:29,915 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-01-28 07:40:29,975 INFO L134 CoverageAnalysis]: Checked inductivity of 211 backedges. 0 proven. 145 refuted. 0 times theorem prover too weak. 66 trivial. 0 not checked. [2023-01-28 07:40:29,975 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-01-28 07:40:30,201 INFO L134 CoverageAnalysis]: Checked inductivity of 211 backedges. 0 proven. 145 refuted. 0 times theorem prover too weak. 66 trivial. 0 not checked. [2023-01-28 07:40:30,201 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1690500831] provided 0 perfect and 2 imperfect interpolant sequences [2023-01-28 07:40:30,201 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-01-28 07:40:30,201 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13, 13] total 23 [2023-01-28 07:40:30,202 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1816964563] [2023-01-28 07:40:30,202 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-01-28 07:40:30,202 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2023-01-28 07:40:30,202 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-28 07:40:30,203 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2023-01-28 07:40:30,203 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=253, Invalid=253, Unknown=0, NotChecked=0, Total=506 [2023-01-28 07:40:30,205 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 69 out of 154 [2023-01-28 07:40:30,206 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 93 places, 86 transitions, 860 flow. Second operand has 23 states, 23 states have (on average 71.65217391304348) internal successors, (1648), 23 states have internal predecessors, (1648), 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 07:40:30,206 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-01-28 07:40:30,206 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 69 of 154 [2023-01-28 07:40:30,206 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-01-28 07:40:30,639 INFO L130 PetriNetUnfolder]: 1162/2840 cut-off events. [2023-01-28 07:40:30,639 INFO L131 PetriNetUnfolder]: For 87720/87720 co-relation queries the response was YES. [2023-01-28 07:40:30,648 INFO L83 FinitePrefix]: Finished finitePrefix Result has 13897 conditions, 2840 events. 1162/2840 cut-off events. For 87720/87720 co-relation queries the response was YES. Maximal size of possible extension queue 29. Compared 14961 event pairs, 61 based on Foata normal form. 270/3109 useless extension candidates. Maximal degree in co-relation 11881. Up to 594 conditions per place. [2023-01-28 07:40:30,659 INFO L137 encePairwiseOnDemand]: 150/154 looper letters, 327 selfloop transitions, 66 changer transitions 0/394 dead transitions. [2023-01-28 07:40:30,659 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 114 places, 394 transitions, 6238 flow [2023-01-28 07:40:30,659 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2023-01-28 07:40:30,659 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2023-01-28 07:40:30,662 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 1701 transitions. [2023-01-28 07:40:30,662 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5020661157024794 [2023-01-28 07:40:30,662 INFO L72 ComplementDD]: Start complementDD. Operand 22 states and 1701 transitions. [2023-01-28 07:40:30,663 INFO L73 IsDeterministic]: Start isDeterministic. Operand 22 states and 1701 transitions. [2023-01-28 07:40:30,663 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-01-28 07:40:30,663 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 22 states and 1701 transitions. [2023-01-28 07:40:30,666 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 23 states, 22 states have (on average 77.31818181818181) internal successors, (1701), 22 states have internal predecessors, (1701), 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 07:40:30,668 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 23 states, 23 states have (on average 154.0) internal successors, (3542), 23 states have internal predecessors, (3542), 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 07:40:30,669 INFO L81 ComplementDD]: Finished complementDD. Result has 23 states, 23 states have (on average 154.0) internal successors, (3542), 23 states have internal predecessors, (3542), 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 07:40:30,669 INFO L175 Difference]: Start difference. First operand has 93 places, 86 transitions, 860 flow. Second operand 22 states and 1701 transitions. [2023-01-28 07:40:30,669 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 114 places, 394 transitions, 6238 flow [2023-01-28 07:40:30,754 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 112 places, 394 transitions, 5274 flow, removed 420 selfloop flow, removed 2 redundant places. [2023-01-28 07:40:30,757 INFO L231 Difference]: Finished difference. Result has 123 places, 119 transitions, 1336 flow [2023-01-28 07:40:30,757 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=154, PETRI_DIFFERENCE_MINUEND_FLOW=776, PETRI_DIFFERENCE_MINUEND_PLACES=91, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=86, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=33, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=50, PETRI_DIFFERENCE_SUBTRAHEND_STATES=22, PETRI_FLOW=1336, PETRI_PLACES=123, PETRI_TRANSITIONS=119} [2023-01-28 07:40:30,758 INFO L281 CegarLoopForPetriNet]: 17 programPoint places, 106 predicate places. [2023-01-28 07:40:30,758 INFO L495 AbstractCegarLoop]: Abstraction has has 123 places, 119 transitions, 1336 flow [2023-01-28 07:40:30,759 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 71.65217391304348) internal successors, (1648), 23 states have internal predecessors, (1648), 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 07:40:30,759 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-28 07:40:30,759 INFO L208 CegarLoopForPetriNet]: trace histogram [20, 20, 20, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1] [2023-01-28 07:40:30,764 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2023-01-28 07:40:30,963 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-01-28 07:40:30,964 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-01-28 07:40:30,964 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-28 07:40:30,964 INFO L85 PathProgramCache]: Analyzing trace with hash -837674743, now seen corresponding path program 5 times [2023-01-28 07:40:30,964 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-28 07:40:30,964 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [205634035] [2023-01-28 07:40:30,964 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 07:40:30,964 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-28 07:40:31,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-28 07:40:31,129 INFO L134 CoverageAnalysis]: Checked inductivity of 656 backedges. 20 proven. 66 refuted. 0 times theorem prover too weak. 570 trivial. 0 not checked. [2023-01-28 07:40:31,129 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-28 07:40:31,129 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [205634035] [2023-01-28 07:40:31,129 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [205634035] provided 0 perfect and 1 imperfect interpolant sequences [2023-01-28 07:40:31,129 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1385764515] [2023-01-28 07:40:31,129 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2023-01-28 07:40:31,129 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-01-28 07:40:31,129 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-01-28 07:40:31,130 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-01-28 07:40:31,132 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-01-28 07:40:31,298 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 20 check-sat command(s) [2023-01-28 07:40:31,298 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-01-28 07:40:31,300 INFO L263 TraceCheckSpWp]: Trace formula consists of 439 conjuncts, 8 conjunts are in the unsatisfiable core [2023-01-28 07:40:31,302 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-01-28 07:40:31,331 INFO L134 CoverageAnalysis]: Checked inductivity of 656 backedges. 20 proven. 66 refuted. 0 times theorem prover too weak. 570 trivial. 0 not checked. [2023-01-28 07:40:31,331 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-01-28 07:40:31,402 INFO L134 CoverageAnalysis]: Checked inductivity of 656 backedges. 20 proven. 66 refuted. 0 times theorem prover too weak. 570 trivial. 0 not checked. [2023-01-28 07:40:31,402 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1385764515] provided 0 perfect and 2 imperfect interpolant sequences [2023-01-28 07:40:31,402 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-01-28 07:40:31,402 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 17 [2023-01-28 07:40:31,402 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1814983645] [2023-01-28 07:40:31,402 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-01-28 07:40:31,403 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2023-01-28 07:40:31,403 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-28 07:40:31,403 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2023-01-28 07:40:31,403 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=136, Invalid=136, Unknown=0, NotChecked=0, Total=272 [2023-01-28 07:40:31,404 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 70 out of 154 [2023-01-28 07:40:31,405 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 123 places, 119 transitions, 1336 flow. Second operand has 17 states, 17 states have (on average 73.82352941176471) internal successors, (1255), 17 states have internal predecessors, (1255), 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 07:40:31,405 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-01-28 07:40:31,405 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 70 of 154 [2023-01-28 07:40:31,405 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-01-28 07:40:32,211 INFO L130 PetriNetUnfolder]: 2538/5271 cut-off events. [2023-01-28 07:40:32,211 INFO L131 PetriNetUnfolder]: For 98046/98048 co-relation queries the response was YES. [2023-01-28 07:40:32,226 INFO L83 FinitePrefix]: Finished finitePrefix Result has 30779 conditions, 5271 events. 2538/5271 cut-off events. For 98046/98048 co-relation queries the response was YES. Maximal size of possible extension queue 61. Compared 31846 event pairs, 198 based on Foata normal form. 346/5617 useless extension candidates. Maximal degree in co-relation 28711. Up to 1298 conditions per place. [2023-01-28 07:40:32,257 INFO L137 encePairwiseOnDemand]: 150/154 looper letters, 437 selfloop transitions, 46 changer transitions 0/484 dead transitions. [2023-01-28 07:40:32,257 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 138 places, 484 transitions, 7162 flow [2023-01-28 07:40:32,257 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-01-28 07:40:32,257 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2023-01-28 07:40:32,259 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 1251 transitions. [2023-01-28 07:40:32,259 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.507711038961039 [2023-01-28 07:40:32,259 INFO L72 ComplementDD]: Start complementDD. Operand 16 states and 1251 transitions. [2023-01-28 07:40:32,260 INFO L73 IsDeterministic]: Start isDeterministic. Operand 16 states and 1251 transitions. [2023-01-28 07:40:32,260 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-01-28 07:40:32,260 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 16 states and 1251 transitions. [2023-01-28 07:40:32,262 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 17 states, 16 states have (on average 78.1875) internal successors, (1251), 16 states have internal predecessors, (1251), 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 07:40:32,264 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 17 states, 17 states have (on average 154.0) internal successors, (2618), 17 states have internal predecessors, (2618), 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 07:40:32,264 INFO L81 ComplementDD]: Finished complementDD. Result has 17 states, 17 states have (on average 154.0) internal successors, (2618), 17 states have internal predecessors, (2618), 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 07:40:32,264 INFO L175 Difference]: Start difference. First operand has 123 places, 119 transitions, 1336 flow. Second operand 16 states and 1251 transitions. [2023-01-28 07:40:32,265 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 138 places, 484 transitions, 7162 flow [2023-01-28 07:40:32,338 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 129 places, 484 transitions, 6892 flow, removed 0 selfloop flow, removed 9 redundant places. [2023-01-28 07:40:32,342 INFO L231 Difference]: Finished difference. Result has 138 places, 128 transitions, 1588 flow [2023-01-28 07:40:32,342 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=154, PETRI_DIFFERENCE_MINUEND_FLOW=1282, PETRI_DIFFERENCE_MINUEND_PLACES=114, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=119, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=37, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=81, PETRI_DIFFERENCE_SUBTRAHEND_STATES=16, PETRI_FLOW=1588, PETRI_PLACES=138, PETRI_TRANSITIONS=128} [2023-01-28 07:40:32,343 INFO L281 CegarLoopForPetriNet]: 17 programPoint places, 121 predicate places. [2023-01-28 07:40:32,343 INFO L495 AbstractCegarLoop]: Abstraction has has 138 places, 128 transitions, 1588 flow [2023-01-28 07:40:32,343 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 73.82352941176471) internal successors, (1255), 17 states have internal predecessors, (1255), 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 07:40:32,343 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-28 07:40:32,344 INFO L208 CegarLoopForPetriNet]: trace histogram [20, 20, 20, 14, 14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1] [2023-01-28 07:40:32,376 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2023-01-28 07:40:32,549 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-01-28 07:40:32,549 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-01-28 07:40:32,549 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-28 07:40:32,549 INFO L85 PathProgramCache]: Analyzing trace with hash 1128715209, now seen corresponding path program 6 times [2023-01-28 07:40:32,550 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-28 07:40:32,550 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2121791705] [2023-01-28 07:40:32,550 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 07:40:32,550 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-28 07:40:32,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-28 07:40:33,011 INFO L134 CoverageAnalysis]: Checked inductivity of 968 backedges. 320 proven. 378 refuted. 0 times theorem prover too weak. 270 trivial. 0 not checked. [2023-01-28 07:40:33,011 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-28 07:40:33,011 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2121791705] [2023-01-28 07:40:33,011 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2121791705] provided 0 perfect and 1 imperfect interpolant sequences [2023-01-28 07:40:33,011 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1701029027] [2023-01-28 07:40:33,012 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2023-01-28 07:40:33,012 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-01-28 07:40:33,012 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-01-28 07:40:33,022 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-01-28 07:40:33,047 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-01-28 07:40:33,338 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 28 check-sat command(s) [2023-01-28 07:40:33,338 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-01-28 07:40:33,340 INFO L263 TraceCheckSpWp]: Trace formula consists of 660 conjuncts, 16 conjunts are in the unsatisfiable core [2023-01-28 07:40:33,343 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-01-28 07:40:33,457 INFO L134 CoverageAnalysis]: Checked inductivity of 968 backedges. 320 proven. 378 refuted. 0 times theorem prover too weak. 270 trivial. 0 not checked. [2023-01-28 07:40:33,457 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-01-28 07:40:33,666 INFO L134 CoverageAnalysis]: Checked inductivity of 968 backedges. 320 proven. 378 refuted. 0 times theorem prover too weak. 270 trivial. 0 not checked. [2023-01-28 07:40:33,666 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1701029027] provided 0 perfect and 2 imperfect interpolant sequences [2023-01-28 07:40:33,666 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-01-28 07:40:33,667 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17, 17] total 23 [2023-01-28 07:40:33,667 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1502933242] [2023-01-28 07:40:33,667 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-01-28 07:40:33,667 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2023-01-28 07:40:33,667 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-28 07:40:33,668 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2023-01-28 07:40:33,668 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=253, Invalid=253, Unknown=0, NotChecked=0, Total=506 [2023-01-28 07:40:33,669 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 70 out of 154 [2023-01-28 07:40:33,670 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 138 places, 128 transitions, 1588 flow. Second operand has 23 states, 23 states have (on average 74.21739130434783) internal successors, (1707), 23 states have internal predecessors, (1707), 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 07:40:33,670 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-01-28 07:40:33,670 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 70 of 154 [2023-01-28 07:40:33,670 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-01-28 07:40:35,003 INFO L130 PetriNetUnfolder]: 3570/7335 cut-off events. [2023-01-28 07:40:35,003 INFO L131 PetriNetUnfolder]: For 168608/168610 co-relation queries the response was YES. [2023-01-28 07:40:35,033 INFO L83 FinitePrefix]: Finished finitePrefix Result has 45389 conditions, 7335 events. 3570/7335 cut-off events. For 168608/168610 co-relation queries the response was YES. Maximal size of possible extension queue 64. Compared 45296 event pairs, 198 based on Foata normal form. 260/7595 useless extension candidates. Maximal degree in co-relation 42529. Up to 1826 conditions per place. [2023-01-28 07:40:35,068 INFO L137 encePairwiseOnDemand]: 150/154 looper letters, 611 selfloop transitions, 52 changer transitions 0/664 dead transitions. [2023-01-28 07:40:35,068 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 159 places, 664 transitions, 9734 flow [2023-01-28 07:40:35,069 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2023-01-28 07:40:35,069 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2023-01-28 07:40:35,071 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 1717 transitions. [2023-01-28 07:40:35,072 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5067886658795749 [2023-01-28 07:40:35,072 INFO L72 ComplementDD]: Start complementDD. Operand 22 states and 1717 transitions. [2023-01-28 07:40:35,072 INFO L73 IsDeterministic]: Start isDeterministic. Operand 22 states and 1717 transitions. [2023-01-28 07:40:35,073 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-01-28 07:40:35,073 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 22 states and 1717 transitions. [2023-01-28 07:40:35,075 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 23 states, 22 states have (on average 78.04545454545455) internal successors, (1717), 22 states have internal predecessors, (1717), 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 07:40:35,078 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 23 states, 23 states have (on average 154.0) internal successors, (3542), 23 states have internal predecessors, (3542), 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 07:40:35,079 INFO L81 ComplementDD]: Finished complementDD. Result has 23 states, 23 states have (on average 154.0) internal successors, (3542), 23 states have internal predecessors, (3542), 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 07:40:35,079 INFO L175 Difference]: Start difference. First operand has 138 places, 128 transitions, 1588 flow. Second operand 22 states and 1717 transitions. [2023-01-28 07:40:35,079 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 159 places, 664 transitions, 9734 flow [2023-01-28 07:40:35,186 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 154 places, 664 transitions, 9674 flow, removed 0 selfloop flow, removed 5 redundant places. [2023-01-28 07:40:35,191 INFO L231 Difference]: Finished difference. Result has 161 places, 135 transitions, 1826 flow [2023-01-28 07:40:35,191 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=154, PETRI_DIFFERENCE_MINUEND_FLOW=1528, PETRI_DIFFERENCE_MINUEND_PLACES=133, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=128, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=45, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=82, PETRI_DIFFERENCE_SUBTRAHEND_STATES=22, PETRI_FLOW=1826, PETRI_PLACES=161, PETRI_TRANSITIONS=135} [2023-01-28 07:40:35,192 INFO L281 CegarLoopForPetriNet]: 17 programPoint places, 144 predicate places. [2023-01-28 07:40:35,192 INFO L495 AbstractCegarLoop]: Abstraction has has 161 places, 135 transitions, 1826 flow [2023-01-28 07:40:35,192 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 74.21739130434783) internal successors, (1707), 23 states have internal predecessors, (1707), 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 07:40:35,192 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-28 07:40:35,193 INFO L208 CegarLoopForPetriNet]: trace histogram [20, 20, 20, 20, 20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1] [2023-01-28 07:40:35,199 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2023-01-28 07:40:35,398 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-01-28 07:40:35,399 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-01-28 07:40:35,399 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-28 07:40:35,399 INFO L85 PathProgramCache]: Analyzing trace with hash 172548031, now seen corresponding path program 7 times [2023-01-28 07:40:35,399 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-28 07:40:35,399 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [645886720] [2023-01-28 07:40:35,399 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 07:40:35,400 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-28 07:40:35,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-28 07:40:38,505 INFO L134 CoverageAnalysis]: Checked inductivity of 1370 backedges. 0 proven. 1370 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-01-28 07:40:38,505 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-28 07:40:38,505 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [645886720] [2023-01-28 07:40:38,505 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [645886720] provided 0 perfect and 1 imperfect interpolant sequences [2023-01-28 07:40:38,505 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1315526664] [2023-01-28 07:40:38,505 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2023-01-28 07:40:38,505 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-01-28 07:40:38,505 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-01-28 07:40:38,507 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-01-28 07:40:38,510 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2023-01-28 07:40:38,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-28 07:40:38,685 INFO L263 TraceCheckSpWp]: Trace formula consists of 816 conjuncts, 168 conjunts are in the unsatisfiable core [2023-01-28 07:40:38,689 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-01-28 07:40:39,033 INFO L134 CoverageAnalysis]: Checked inductivity of 1370 backedges. 0 proven. 1370 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-01-28 07:40:39,034 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-01-28 07:40:39,432 INFO L134 CoverageAnalysis]: Checked inductivity of 1370 backedges. 0 proven. 1370 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-01-28 07:40:39,433 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1315526664] provided 0 perfect and 2 imperfect interpolant sequences [2023-01-28 07:40:39,433 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-01-28 07:40:39,433 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [61, 61, 61] total 61 [2023-01-28 07:40:39,434 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [255489924] [2023-01-28 07:40:39,434 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-01-28 07:40:39,435 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 63 states [2023-01-28 07:40:39,436 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-28 07:40:39,437 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 63 interpolants. [2023-01-28 07:40:39,438 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=123, Invalid=3783, Unknown=0, NotChecked=0, Total=3906 [2023-01-28 07:40:39,439 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 68 out of 154 [2023-01-28 07:40:39,442 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 161 places, 135 transitions, 1826 flow. Second operand has 63 states, 63 states have (on average 70.34920634920636) internal successors, (4432), 63 states have internal predecessors, (4432), 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 07:40:39,442 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-01-28 07:40:39,442 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 68 of 154 [2023-01-28 07:40:39,442 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-01-28 07:42:23,435 INFO L130 PetriNetUnfolder]: 111574/223171 cut-off events. [2023-01-28 07:42:23,435 INFO L131 PetriNetUnfolder]: For 8867754/8867754 co-relation queries the response was YES. [2023-01-28 07:42:26,053 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1694039 conditions, 223171 events. 111574/223171 cut-off events. For 8867754/8867754 co-relation queries the response was YES. Maximal size of possible extension queue 1804. Compared 2322248 event pairs, 3065 based on Foata normal form. 1/223172 useless extension candidates. Maximal degree in co-relation 1681661. Up to 48711 conditions per place. [2023-01-28 07:42:26,998 INFO L137 encePairwiseOnDemand]: 149/154 looper letters, 10810 selfloop transitions, 1382 changer transitions 1/12193 dead transitions. [2023-01-28 07:42:26,998 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 653 places, 12193 transitions, 219805 flow [2023-01-28 07:42:26,999 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 493 states. [2023-01-28 07:42:26,999 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 493 states. [2023-01-28 07:42:27,026 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 493 states to 493 states and 37385 transitions. [2023-01-28 07:42:27,040 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.49241326624693765 [2023-01-28 07:42:27,040 INFO L72 ComplementDD]: Start complementDD. Operand 493 states and 37385 transitions. [2023-01-28 07:42:27,040 INFO L73 IsDeterministic]: Start isDeterministic. Operand 493 states and 37385 transitions. [2023-01-28 07:42:27,051 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-01-28 07:42:27,051 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 493 states and 37385 transitions. [2023-01-28 07:42:27,104 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 494 states, 493 states have (on average 75.8316430020284) internal successors, (37385), 493 states have internal predecessors, (37385), 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 07:42:27,179 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 494 states, 494 states have (on average 154.0) internal successors, (76076), 494 states have internal predecessors, (76076), 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 07:42:27,202 INFO L81 ComplementDD]: Finished complementDD. Result has 494 states, 494 states have (on average 154.0) internal successors, (76076), 494 states have internal predecessors, (76076), 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 07:42:27,202 INFO L175 Difference]: Start difference. First operand has 161 places, 135 transitions, 1826 flow. Second operand 493 states and 37385 transitions. [2023-01-28 07:42:27,202 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 653 places, 12193 transitions, 219805 flow [2023-01-28 07:49:56,368 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 640 places, 12193 transitions, 211235 flow, removed 0 selfloop flow, removed 13 redundant places. [2023-01-28 07:49:56,465 INFO L231 Difference]: Finished difference. Result has 641 places, 1576 transitions, 7546 flow [2023-01-28 07:49:56,466 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=154, PETRI_DIFFERENCE_MINUEND_FLOW=1750, PETRI_DIFFERENCE_MINUEND_PLACES=148, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=135, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=131, PETRI_DIFFERENCE_SUBTRAHEND_STATES=493, PETRI_FLOW=7546, PETRI_PLACES=641, PETRI_TRANSITIONS=1576} [2023-01-28 07:49:56,467 INFO L281 CegarLoopForPetriNet]: 17 programPoint places, 624 predicate places. [2023-01-28 07:49:56,467 INFO L495 AbstractCegarLoop]: Abstraction has has 641 places, 1576 transitions, 7546 flow [2023-01-28 07:49:56,472 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 63 states, 63 states have (on average 70.34920634920636) internal successors, (4432), 63 states have internal predecessors, (4432), 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 07:49:56,473 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-28 07:49:56,473 INFO L208 CegarLoopForPetriNet]: trace histogram [20, 20, 20, 20, 20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1] [2023-01-28 07:49:56,496 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2023-01-28 07:49:56,696 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-01-28 07:49:56,696 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-01-28 07:49:56,697 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-28 07:49:56,697 INFO L85 PathProgramCache]: Analyzing trace with hash 1148916451, now seen corresponding path program 8 times [2023-01-28 07:49:56,697 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-28 07:49:56,697 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [227302790] [2023-01-28 07:49:56,697 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 07:49:56,697 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-28 07:49:56,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-28 07:49:56,854 INFO L134 CoverageAnalysis]: Checked inductivity of 1370 backedges. 40 proven. 0 refuted. 0 times theorem prover too weak. 1330 trivial. 0 not checked. [2023-01-28 07:49:56,854 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-28 07:49:56,854 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [227302790] [2023-01-28 07:49:56,854 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [227302790] provided 1 perfect and 0 imperfect interpolant sequences [2023-01-28 07:49:56,854 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-01-28 07:49:56,854 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-01-28 07:49:56,854 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [425050343] [2023-01-28 07:49:56,854 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-01-28 07:49:56,854 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-01-28 07:49:56,855 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-28 07:49:56,855 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-01-28 07:49:56,855 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-01-28 07:49:56,856 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 66 out of 154 [2023-01-28 07:49:56,856 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 641 places, 1576 transitions, 7546 flow. Second operand has 3 states, 3 states have (on average 71.33333333333333) internal successors, (214), 3 states have internal predecessors, (214), 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 07:49:56,856 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-01-28 07:49:56,856 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 66 of 154 [2023-01-28 07:49:56,856 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-01-28 07:50:04,919 INFO L130 PetriNetUnfolder]: 10744/35635 cut-off events. [2023-01-28 07:50:04,920 INFO L131 PetriNetUnfolder]: For 3230285/3230285 co-relation queries the response was YES. [2023-01-28 07:50:05,330 INFO L83 FinitePrefix]: Finished finitePrefix Result has 353543 conditions, 35635 events. 10744/35635 cut-off events. For 3230285/3230285 co-relation queries the response was YES. Maximal size of possible extension queue 466. Compared 399269 event pairs, 506 based on Foata normal form. 10012/45647 useless extension candidates. Maximal degree in co-relation 350101. Up to 23354 conditions per place. [2023-01-28 07:50:05,477 INFO L137 encePairwiseOnDemand]: 150/154 looper letters, 537 selfloop transitions, 112 changer transitions 0/1109 dead transitions. [2023-01-28 07:50:05,478 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 612 places, 1109 transitions, 7197 flow [2023-01-28 07:50:05,493 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-01-28 07:50:05,494 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-01-28 07:50:05,494 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 218 transitions. [2023-01-28 07:50:05,494 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.47186147186147187 [2023-01-28 07:50:05,494 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 218 transitions. [2023-01-28 07:50:05,494 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 218 transitions. [2023-01-28 07:50:05,494 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-01-28 07:50:05,494 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 218 transitions. [2023-01-28 07:50:05,495 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 72.66666666666667) internal successors, (218), 3 states have internal predecessors, (218), 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 07:50:05,495 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 154.0) internal successors, (616), 4 states have internal predecessors, (616), 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 07:50:05,495 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 154.0) internal successors, (616), 4 states have internal predecessors, (616), 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 07:50:05,495 INFO L175 Difference]: Start difference. First operand has 641 places, 1576 transitions, 7546 flow. Second operand 3 states and 218 transitions. [2023-01-28 07:50:05,495 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 612 places, 1109 transitions, 7197 flow [2023-01-28 07:50:36,499 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 612 places, 1109 transitions, 7197 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-01-28 07:50:36,509 INFO L231 Difference]: Finished difference. Result has 612 places, 1094 transitions, 5842 flow [2023-01-28 07:50:36,510 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=154, PETRI_DIFFERENCE_MINUEND_FLOW=5618, PETRI_DIFFERENCE_MINUEND_PLACES=610, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1094, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=112, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=982, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=5842, PETRI_PLACES=612, PETRI_TRANSITIONS=1094} [2023-01-28 07:50:36,510 INFO L281 CegarLoopForPetriNet]: 17 programPoint places, 595 predicate places. [2023-01-28 07:50:36,510 INFO L495 AbstractCegarLoop]: Abstraction has has 612 places, 1094 transitions, 5842 flow [2023-01-28 07:50:36,510 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 71.33333333333333) internal successors, (214), 3 states have internal predecessors, (214), 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 07:50:36,511 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-28 07:50:36,511 INFO L208 CegarLoopForPetriNet]: trace histogram [20, 20, 20, 20, 20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1] [2023-01-28 07:50:36,511 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-01-28 07:50:36,511 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-01-28 07:50:36,511 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-28 07:50:36,511 INFO L85 PathProgramCache]: Analyzing trace with hash 1655298021, now seen corresponding path program 9 times [2023-01-28 07:50:36,511 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-28 07:50:36,511 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [232483878] [2023-01-28 07:50:36,511 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 07:50:36,511 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-28 07:50:36,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-28 07:50:39,771 INFO L134 CoverageAnalysis]: Checked inductivity of 1370 backedges. 0 proven. 1370 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-01-28 07:50:39,772 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-28 07:50:39,772 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [232483878] [2023-01-28 07:50:39,772 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [232483878] provided 0 perfect and 1 imperfect interpolant sequences [2023-01-28 07:50:39,772 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [402826977] [2023-01-28 07:50:39,772 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-01-28 07:50:39,772 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-01-28 07:50:39,772 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-01-28 07:50:39,785 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-01-28 07:50:39,786 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2023-01-28 07:50:40,347 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 29 check-sat command(s) [2023-01-28 07:50:40,347 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-01-28 07:50:40,352 INFO L263 TraceCheckSpWp]: Trace formula consists of 816 conjuncts, 168 conjunts are in the unsatisfiable core [2023-01-28 07:50:40,355 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-01-28 07:50:40,692 INFO L134 CoverageAnalysis]: Checked inductivity of 1370 backedges. 0 proven. 1370 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-01-28 07:50:40,692 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-01-28 07:50:41,023 INFO L134 CoverageAnalysis]: Checked inductivity of 1370 backedges. 0 proven. 1370 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-01-28 07:50:41,024 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [402826977] provided 0 perfect and 2 imperfect interpolant sequences [2023-01-28 07:50:41,024 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-01-28 07:50:41,024 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [61, 61, 61] total 61 [2023-01-28 07:50:41,024 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [161582988] [2023-01-28 07:50:41,024 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-01-28 07:50:41,024 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 63 states [2023-01-28 07:50:41,025 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-28 07:50:41,025 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 63 interpolants. [2023-01-28 07:50:41,026 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=123, Invalid=3783, Unknown=0, NotChecked=0, Total=3906 [2023-01-28 07:50:41,028 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 68 out of 154 [2023-01-28 07:50:41,029 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 612 places, 1094 transitions, 5842 flow. Second operand has 63 states, 63 states have (on average 70.34920634920636) internal successors, (4432), 63 states have internal predecessors, (4432), 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 07:50:41,029 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-01-28 07:50:41,029 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 68 of 154 [2023-01-28 07:50:41,030 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-01-28 07:51:36,563 INFO L130 PetriNetUnfolder]: 19289/62900 cut-off events. [2023-01-28 07:51:36,563 INFO L131 PetriNetUnfolder]: For 5719220/5719220 co-relation queries the response was YES. [2023-01-28 07:51:37,205 INFO L83 FinitePrefix]: Finished finitePrefix Result has 669763 conditions, 62900 events. 19289/62900 cut-off events. For 5719220/5719220 co-relation queries the response was YES. Maximal size of possible extension queue 854. Compared 757935 event pairs, 6016 based on Foata normal form. 1/62901 useless extension candidates. Maximal degree in co-relation 664409. Up to 34273 conditions per place. [2023-01-28 07:51:37,417 INFO L137 encePairwiseOnDemand]: 149/154 looper letters, 4552 selfloop transitions, 1223 changer transitions 1/5776 dead transitions. [2023-01-28 07:51:37,417 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1031 places, 5776 transitions, 86231 flow [2023-01-28 07:51:37,417 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 420 states. [2023-01-28 07:51:37,417 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 420 states. [2023-01-28 07:51:37,430 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 420 states to 420 states and 31042 transitions. [2023-01-28 07:51:37,438 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.47993197278911565 [2023-01-28 07:51:37,438 INFO L72 ComplementDD]: Start complementDD. Operand 420 states and 31042 transitions. [2023-01-28 07:51:37,438 INFO L73 IsDeterministic]: Start isDeterministic. Operand 420 states and 31042 transitions. [2023-01-28 07:51:37,444 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-01-28 07:51:37,444 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 420 states and 31042 transitions. [2023-01-28 07:51:37,479 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 421 states, 420 states have (on average 73.9095238095238) internal successors, (31042), 420 states have internal predecessors, (31042), 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 07:51:37,523 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 421 states, 421 states have (on average 154.0) internal successors, (64834), 421 states have internal predecessors, (64834), 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 07:51:37,534 INFO L81 ComplementDD]: Finished complementDD. Result has 421 states, 421 states have (on average 154.0) internal successors, (64834), 421 states have internal predecessors, (64834), 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 07:51:37,534 INFO L175 Difference]: Start difference. First operand has 612 places, 1094 transitions, 5842 flow. Second operand 420 states and 31042 transitions. [2023-01-28 07:51:37,534 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 1031 places, 5776 transitions, 86231 flow [2023-01-28 07:52:18,666 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 1030 places, 5776 transitions, 83070 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-01-28 07:52:18,711 INFO L231 Difference]: Finished difference. Result has 1213 places, 2316 transitions, 15513 flow [2023-01-28 07:52:18,713 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=154, PETRI_DIFFERENCE_MINUEND_FLOW=5730, PETRI_DIFFERENCE_MINUEND_PLACES=611, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1094, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=59, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=671, PETRI_DIFFERENCE_SUBTRAHEND_STATES=420, PETRI_FLOW=15513, PETRI_PLACES=1213, PETRI_TRANSITIONS=2316} [2023-01-28 07:52:18,713 INFO L281 CegarLoopForPetriNet]: 17 programPoint places, 1196 predicate places. [2023-01-28 07:52:18,713 INFO L495 AbstractCegarLoop]: Abstraction has has 1213 places, 2316 transitions, 15513 flow [2023-01-28 07:52:18,714 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 63 states, 63 states have (on average 70.34920634920636) internal successors, (4432), 63 states have internal predecessors, (4432), 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 07:52:18,714 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-28 07:52:18,714 INFO L208 CegarLoopForPetriNet]: trace histogram [20, 20, 20, 20, 20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1] [2023-01-28 07:52:18,721 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2023-01-28 07:52:18,921 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2023-01-28 07:52:18,921 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-01-28 07:52:18,921 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-28 07:52:18,921 INFO L85 PathProgramCache]: Analyzing trace with hash -428446317, now seen corresponding path program 10 times [2023-01-28 07:52:18,922 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-28 07:52:18,922 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1993921508] [2023-01-28 07:52:18,922 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 07:52:18,922 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-28 07:52:18,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-28 07:52:21,545 INFO L134 CoverageAnalysis]: Checked inductivity of 1370 backedges. 0 proven. 1370 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-01-28 07:52:21,545 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-28 07:52:21,547 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1993921508] [2023-01-28 07:52:21,548 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1993921508] provided 0 perfect and 1 imperfect interpolant sequences [2023-01-28 07:52:21,548 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1286044626] [2023-01-28 07:52:21,548 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2023-01-28 07:52:21,548 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-01-28 07:52:21,548 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-01-28 07:52:21,549 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-01-28 07:52:21,551 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2023-01-28 07:52:23,163 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2023-01-28 07:52:23,163 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-01-28 07:52:23,169 INFO L263 TraceCheckSpWp]: Trace formula consists of 816 conjuncts, 168 conjunts are in the unsatisfiable core [2023-01-28 07:52:23,172 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-01-28 07:52:23,445 INFO L134 CoverageAnalysis]: Checked inductivity of 1370 backedges. 0 proven. 1370 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-01-28 07:52:23,445 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-01-28 07:52:23,775 INFO L134 CoverageAnalysis]: Checked inductivity of 1370 backedges. 0 proven. 1370 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-01-28 07:52:23,775 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1286044626] provided 0 perfect and 2 imperfect interpolant sequences [2023-01-28 07:52:23,775 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-01-28 07:52:23,775 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [61, 61, 61] total 61 [2023-01-28 07:52:23,776 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1490719787] [2023-01-28 07:52:23,776 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-01-28 07:52:23,778 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 63 states [2023-01-28 07:52:23,781 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-28 07:52:23,781 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 63 interpolants. [2023-01-28 07:52:23,782 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=123, Invalid=3783, Unknown=0, NotChecked=0, Total=3906 [2023-01-28 07:52:23,786 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 68 out of 154 [2023-01-28 07:52:23,787 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1213 places, 2316 transitions, 15513 flow. Second operand has 63 states, 63 states have (on average 70.34920634920636) internal successors, (4432), 63 states have internal predecessors, (4432), 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 07:52:23,787 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-01-28 07:52:23,787 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 68 of 154 [2023-01-28 07:52:23,787 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-01-28 07:54:12,262 INFO L130 PetriNetUnfolder]: 30003/96779 cut-off events. [2023-01-28 07:54:12,262 INFO L131 PetriNetUnfolder]: For 9078908/9078908 co-relation queries the response was YES. Received shutdown request... [2023-01-28 07:54:12,747 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-01-28 07:54:12,747 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-01-28 07:54:13,761 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 [2023-01-28 07:54:13,761 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2023-01-28 07:54:17,225 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1057194 conditions, 96779 events. 30003/96779 cut-off events. For 9078908/9078908 co-relation queries the response was YES. Maximal size of possible extension queue 1443. Compared 1250507 event pairs, 9582 based on Foata normal form. 1/96780 useless extension candidates. Maximal degree in co-relation 1056117. Up to 55932 conditions per place. [2023-01-28 07:54:17,574 INFO L137 encePairwiseOnDemand]: 149/154 looper letters, 5155 selfloop transitions, 1492 changer transitions 1/6648 dead transitions. [2023-01-28 07:54:17,574 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1608 places, 6648 transitions, 93682 flow [2023-01-28 07:54:17,577 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 2 remaining) [2023-01-28 07:54:17,578 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-01-28 07:54:17,578 WARN L619 AbstractCegarLoop]: Verification canceled: while executing Executor. [2023-01-28 07:54:17,585 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 2 remaining) [2023-01-28 07:54:17,585 INFO L445 BasicCegarLoop]: Path program histogram: [10, 1, 1] [2023-01-28 07:54:17,592 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-01-28 07:54:17,593 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-01-28 07:54:17,595 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.01 07:54:17 BasicIcfg [2023-01-28 07:54:17,595 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-01-28 07:54:17,600 INFO L158 Benchmark]: Toolchain (without parser) took 833196.11ms. Allocated memory was 455.1MB in the beginning and 11.9GB in the end (delta: 11.5GB). Free memory was 422.6MB in the beginning and 6.9GB in the end (delta: -6.5GB). Peak memory consumption was 6.1GB. Max. memory is 16.0GB. [2023-01-28 07:54:17,600 INFO L158 Benchmark]: CDTParser took 0.09ms. Allocated memory is still 255.9MB. Free memory is still 213.4MB. There was no memory consumed. Max. memory is 16.0GB. [2023-01-28 07:54:17,601 INFO L158 Benchmark]: CACSL2BoogieTranslator took 517.18ms. Allocated memory is still 455.1MB. Free memory was 422.6MB in the beginning and 384.8MB in the end (delta: 37.9MB). Peak memory consumption was 37.7MB. Max. memory is 16.0GB. [2023-01-28 07:54:17,601 INFO L158 Benchmark]: Boogie Procedure Inliner took 49.59ms. Allocated memory is still 455.1MB. Free memory was 384.8MB in the beginning and 382.4MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-01-28 07:54:17,603 INFO L158 Benchmark]: Boogie Preprocessor took 15.43ms. Allocated memory is still 455.1MB. Free memory was 382.4MB in the beginning and 380.7MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-01-28 07:54:17,603 INFO L158 Benchmark]: RCFGBuilder took 364.68ms. Allocated memory is still 455.1MB. Free memory was 380.7MB in the beginning and 367.1MB in the end (delta: 13.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.0GB. [2023-01-28 07:54:17,603 INFO L158 Benchmark]: TraceAbstraction took 832245.59ms. Allocated memory was 455.1MB in the beginning and 11.9GB in the end (delta: 11.5GB). Free memory was 366.7MB in the beginning and 6.9GB in the end (delta: -6.6GB). Peak memory consumption was 6.1GB. Max. memory is 16.0GB. [2023-01-28 07:54:17,605 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 255.9MB. Free memory is still 213.4MB. There was no memory consumed. Max. memory is 16.0GB. * CACSL2BoogieTranslator took 517.18ms. Allocated memory is still 455.1MB. Free memory was 422.6MB in the beginning and 384.8MB in the end (delta: 37.9MB). Peak memory consumption was 37.7MB. Max. memory is 16.0GB. * Boogie Procedure Inliner took 49.59ms. Allocated memory is still 455.1MB. Free memory was 384.8MB in the beginning and 382.4MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * Boogie Preprocessor took 15.43ms. Allocated memory is still 455.1MB. Free memory was 382.4MB in the beginning and 380.7MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * RCFGBuilder took 364.68ms. Allocated memory is still 455.1MB. Free memory was 380.7MB in the beginning and 367.1MB in the end (delta: 13.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.0GB. * TraceAbstraction took 832245.59ms. Allocated memory was 455.1MB in the beginning and 11.9GB in the end (delta: 11.5GB). Free memory was 366.7MB in the beginning and 6.9GB in the end (delta: -6.6GB). Peak memory consumption was 6.1GB. Max. memory is 16.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 1.4s, 75 PlacesBefore, 17 PlacesAfterwards, 77 TransitionsBefore, 15 TransitionsAfterwards, 722 CoEnabledTransitionPairs, 5 FixpointIterations, 33 TrivialSequentialCompositions, 22 ConcurrentSequentialCompositions, 4 TrivialYvCompositions, 5 ConcurrentYvCompositions, 4 ChoiceCompositions, 68 TotalNumberOfCompositions, 866 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 675, independent: 626, independent conditional: 0, independent unconditional: 626, dependent: 49, dependent conditional: 0, dependent unconditional: 49, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 388, independent: 377, independent conditional: 0, independent unconditional: 377, dependent: 11, dependent conditional: 0, dependent unconditional: 11, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 675, independent: 249, independent conditional: 0, independent unconditional: 249, dependent: 38, dependent conditional: 0, dependent unconditional: 38, unknown: 388, unknown conditional: 0, unknown unconditional: 388] , Statistics on independence cache: Total cache size (in pairs): 22, Positive cache size: 17, Positive conditional cache size: 0, Positive unconditional cache size: 17, Negative cache size: 5, Negative conditional cache size: 0, Negative unconditional cache size: 5, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - TimeoutResultAtElement [Line: 13]: Timeout (TraceAbstraction) Unable to prove that call to reach_error is unreachable Cancelled while executing Executor. - TimeoutResultAtElement [Line: 1343]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while executing Executor. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 99 locations, 2 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: 832.2s, OverallIterations: 12, TraceHistogramMax: 20, PathProgramHistogramMax: 10, EmptinessCheckTime: 0.0s, AutomataDifference: 812.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 1.5s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 7633 SdHoareTripleChecker+Valid, 114.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 7633 mSDsluCounter, 0 SdHoareTripleChecker+Invalid, 96.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 542 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 499595 IncrementalHoareTripleChecker+Invalid, 500137 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 542 mSolverCounterUnsat, 0 mSDtfsCounter, 499595 mSolverCounterSat, 1.3s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 2997 GetRequests, 1558 SyntacticMatches, 25 SemanticMatches, 1414 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 213929 ImplicationChecksByTransitivity, 28.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=15513occurred in iteration=11, InterpolantAutomatonStates: 1030, 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: 0.2s SsaConstructionTime, 2.7s SatisfiabilityAnalysisTime, 13.0s InterpolantComputationTime, 1782 NumberOfCodeBlocks, 1746 NumberOfCodeBlocksAsserted, 100 NumberOfCheckSat, 2559 ConstructedInterpolants, 0 QuantifiedInterpolants, 11605 SizeOfPredicates, 120 NumberOfNonLiveVariables, 4396 ConjunctsInSsa, 553 ConjunctsInUnsatCore, 30 InterpolantComputations, 3 PerfectInterpolantSequences, 5571/19734 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 RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown