/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/lazy01.i -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-b8dbc81 [2023-01-28 06:12:39,961 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-01-28 06:12:39,963 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-01-28 06:12:40,004 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-01-28 06:12:40,005 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-01-28 06:12:40,007 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-01-28 06:12:40,010 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-01-28 06:12:40,012 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-01-28 06:12:40,014 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-01-28 06:12:40,019 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-01-28 06:12:40,020 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-01-28 06:12:40,021 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-01-28 06:12:40,022 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-01-28 06:12:40,024 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-01-28 06:12:40,025 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-01-28 06:12:40,026 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-01-28 06:12:40,026 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-01-28 06:12:40,027 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-01-28 06:12:40,030 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-01-28 06:12:40,036 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-01-28 06:12:40,037 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-01-28 06:12:40,037 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-01-28 06:12:40,038 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-01-28 06:12:40,039 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-01-28 06:12:40,046 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-01-28 06:12:40,047 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-01-28 06:12:40,047 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-01-28 06:12:40,049 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-01-28 06:12:40,049 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-01-28 06:12:40,049 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-01-28 06:12:40,050 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-01-28 06:12:40,050 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-01-28 06:12:40,051 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-01-28 06:12:40,052 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-01-28 06:12:40,053 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-01-28 06:12:40,053 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-01-28 06:12:40,053 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-01-28 06:12:40,053 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-01-28 06:12:40,053 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-01-28 06:12:40,054 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-01-28 06:12:40,055 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-01-28 06:12:40,056 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-VariableLbe.epf [2023-01-28 06:12:40,083 INFO L113 SettingsManager]: Loading preferences was successful [2023-01-28 06:12:40,083 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-01-28 06:12:40,084 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-01-28 06:12:40,084 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-01-28 06:12:40,085 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-01-28 06:12:40,085 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-01-28 06:12:40,085 INFO L138 SettingsManager]: * Use SBE=true [2023-01-28 06:12:40,085 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-01-28 06:12:40,085 INFO L138 SettingsManager]: * sizeof long=4 [2023-01-28 06:12:40,085 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-01-28 06:12:40,086 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-01-28 06:12:40,086 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-01-28 06:12:40,086 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-01-28 06:12:40,086 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-01-28 06:12:40,086 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-01-28 06:12:40,086 INFO L138 SettingsManager]: * sizeof long double=12 [2023-01-28 06:12:40,086 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-01-28 06:12:40,086 INFO L138 SettingsManager]: * Use constant arrays=true [2023-01-28 06:12:40,087 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-01-28 06:12:40,087 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-01-28 06:12:40,087 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-01-28 06:12:40,087 INFO L138 SettingsManager]: * To the following directory=./dump/ [2023-01-28 06:12:40,087 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-01-28 06:12:40,087 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-01-28 06:12:40,087 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-01-28 06:12:40,087 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-01-28 06:12:40,087 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-01-28 06:12:40,087 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-01-28 06:12:40,087 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-01-28 06:12:40,087 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-01-28 06:12:40,088 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-01-28 06:12:40,088 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: When to check the insufficient erros location relative to the other error locations -> AFTER [2023-01-28 06:12:40,287 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-01-28 06:12:40,311 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-01-28 06:12:40,313 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-01-28 06:12:40,314 INFO L271 PluginConnector]: Initializing CDTParser... [2023-01-28 06:12:40,316 INFO L275 PluginConnector]: CDTParser initialized [2023-01-28 06:12:40,317 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread/lazy01.i [2023-01-28 06:12:41,351 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-01-28 06:12:41,546 INFO L351 CDTParser]: Found 1 translation units. [2023-01-28 06:12:41,546 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread/lazy01.i [2023-01-28 06:12:41,553 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/781e6f859/6b3ba12365134aad81563591f39fa8f4/FLAG37c7c33ab [2023-01-28 06:12:41,948 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/781e6f859/6b3ba12365134aad81563591f39fa8f4 [2023-01-28 06:12:41,950 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-01-28 06:12:41,951 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2023-01-28 06:12:41,953 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-01-28 06:12:41,953 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-01-28 06:12:41,955 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-01-28 06:12:41,955 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.01 06:12:41" (1/1) ... [2023-01-28 06:12:41,956 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@340ee235 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 06:12:41, skipping insertion in model container [2023-01-28 06:12:41,956 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.01 06:12:41" (1/1) ... [2023-01-28 06:12:41,960 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-01-28 06:12:41,992 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-01-28 06:12:42,157 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/lazy01.i[31042,31055] [2023-01-28 06:12:42,164 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-01-28 06:12:42,172 INFO L203 MainTranslator]: Completed pre-run [2023-01-28 06:12:42,207 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/lazy01.i[31042,31055] [2023-01-28 06:12:42,210 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-01-28 06:12:42,231 INFO L208 MainTranslator]: Completed translation [2023-01-28 06:12:42,232 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 06:12:42 WrapperNode [2023-01-28 06:12:42,232 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-01-28 06:12:42,232 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-01-28 06:12:42,233 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-01-28 06:12:42,233 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-01-28 06:12:42,237 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 06:12:42" (1/1) ... [2023-01-28 06:12:42,245 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 06:12:42" (1/1) ... [2023-01-28 06:12:42,258 INFO L138 Inliner]: procedures = 169, calls = 33, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 62 [2023-01-28 06:12:42,258 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-01-28 06:12:42,259 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-01-28 06:12:42,259 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-01-28 06:12:42,259 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-01-28 06:12:42,264 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 06:12:42" (1/1) ... [2023-01-28 06:12:42,264 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 06:12:42" (1/1) ... [2023-01-28 06:12:42,266 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 06:12:42" (1/1) ... [2023-01-28 06:12:42,266 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 06:12:42" (1/1) ... [2023-01-28 06:12:42,270 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 06:12:42" (1/1) ... [2023-01-28 06:12:42,271 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 06:12:42" (1/1) ... [2023-01-28 06:12:42,279 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 06:12:42" (1/1) ... [2023-01-28 06:12:42,280 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 06:12:42" (1/1) ... [2023-01-28 06:12:42,282 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-01-28 06:12:42,282 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-01-28 06:12:42,283 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-01-28 06:12:42,283 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-01-28 06:12:42,283 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 06:12:42" (1/1) ... [2023-01-28 06:12:42,287 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-01-28 06:12:42,295 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-01-28 06:12:42,305 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-01-28 06:12:42,308 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-01-28 06:12:42,340 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-01-28 06:12:42,340 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2023-01-28 06:12:42,340 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2023-01-28 06:12:42,340 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2023-01-28 06:12:42,341 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2023-01-28 06:12:42,341 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2023-01-28 06:12:42,342 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2023-01-28 06:12:42,342 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-01-28 06:12:42,342 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-01-28 06:12:42,342 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-01-28 06:12:42,342 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-01-28 06:12:42,342 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-01-28 06:12:42,342 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-01-28 06:12:42,342 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-01-28 06:12:42,342 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-01-28 06:12:42,343 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-01-28 06:12:42,492 INFO L236 CfgBuilder]: Building ICFG [2023-01-28 06:12:42,493 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-01-28 06:12:42,662 INFO L277 CfgBuilder]: Performing block encoding [2023-01-28 06:12:42,667 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-01-28 06:12:42,667 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-01-28 06:12:42,668 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.01 06:12:42 BoogieIcfgContainer [2023-01-28 06:12:42,668 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-01-28 06:12:42,670 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-01-28 06:12:42,670 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-01-28 06:12:42,672 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-01-28 06:12:42,672 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.01 06:12:41" (1/3) ... [2023-01-28 06:12:42,672 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@150cf6ef and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.01 06:12:42, skipping insertion in model container [2023-01-28 06:12:42,672 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 06:12:42" (2/3) ... [2023-01-28 06:12:42,673 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@150cf6ef and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.01 06:12:42, skipping insertion in model container [2023-01-28 06:12:42,673 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.01 06:12:42" (3/3) ... [2023-01-28 06:12:42,673 INFO L112 eAbstractionObserver]: Analyzing ICFG lazy01.i [2023-01-28 06:12:42,685 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-01-28 06:12:42,685 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-01-28 06:12:42,685 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-01-28 06:12:42,728 INFO L144 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2023-01-28 06:12:42,751 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 96 places, 87 transitions, 198 flow [2023-01-28 06:12:42,780 INFO L130 PetriNetUnfolder]: 1/84 cut-off events. [2023-01-28 06:12:42,781 INFO L131 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2023-01-28 06:12:42,784 INFO L83 FinitePrefix]: Finished finitePrefix Result has 97 conditions, 84 events. 1/84 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 64 event pairs, 0 based on Foata normal form. 0/82 useless extension candidates. Maximal degree in co-relation 46. Up to 2 conditions per place. [2023-01-28 06:12:42,784 INFO L82 GeneralOperation]: Start removeDead. Operand has 96 places, 87 transitions, 198 flow [2023-01-28 06:12:42,787 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 77 places, 67 transitions, 149 flow [2023-01-28 06:12:42,789 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-01-28 06:12:42,795 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 77 places, 67 transitions, 149 flow [2023-01-28 06:12:42,797 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 77 places, 67 transitions, 149 flow [2023-01-28 06:12:42,798 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 77 places, 67 transitions, 149 flow [2023-01-28 06:12:42,813 INFO L130 PetriNetUnfolder]: 0/67 cut-off events. [2023-01-28 06:12:42,813 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2023-01-28 06:12:42,813 INFO L83 FinitePrefix]: Finished finitePrefix Result has 79 conditions, 67 events. 0/67 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 50 event pairs, 0 based on Foata normal form. 0/67 useless extension candidates. Maximal degree in co-relation 0. Up to 2 conditions per place. [2023-01-28 06:12:42,814 INFO L119 LiptonReduction]: Number of co-enabled transitions 814 [2023-01-28 06:12:44,613 INFO L134 LiptonReduction]: Checked pairs total: 1727 [2023-01-28 06:12:44,613 INFO L136 LiptonReduction]: Total number of compositions: 47 [2023-01-28 06:12:44,644 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-01-28 06:12:44,648 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;@aa3af72, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-01-28 06:12:44,649 INFO L358 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2023-01-28 06:12:44,653 INFO L130 PetriNetUnfolder]: 0/15 cut-off events. [2023-01-28 06:12:44,653 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2023-01-28 06:12:44,653 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-28 06:12:44,654 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-01-28 06:12:44,654 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting thread3Err0ASSERT_VIOLATIONERROR_FUNCTION === [thread3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2023-01-28 06:12:44,687 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-28 06:12:44,688 INFO L85 PathProgramCache]: Analyzing trace with hash -265877263, now seen corresponding path program 1 times [2023-01-28 06:12:44,694 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-28 06:12:44,694 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [689549164] [2023-01-28 06:12:44,694 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 06:12:44,695 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-28 06:12:44,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-28 06:12:44,948 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-01-28 06:12:44,948 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-28 06:12:44,948 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [689549164] [2023-01-28 06:12:44,949 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [689549164] provided 1 perfect and 0 imperfect interpolant sequences [2023-01-28 06:12:44,949 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-01-28 06:12:44,949 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-01-28 06:12:44,950 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [815174890] [2023-01-28 06:12:44,951 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-01-28 06:12:44,956 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-01-28 06:12:44,961 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-28 06:12:44,981 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-01-28 06:12:44,981 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-01-28 06:12:44,984 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 73 out of 134 [2023-01-28 06:12:44,986 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 30 places, 20 transitions, 55 flow. Second operand has 3 states, 3 states have (on average 75.66666666666667) internal successors, (227), 3 states have internal predecessors, (227), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-28 06:12:44,986 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-01-28 06:12:44,986 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 73 of 134 [2023-01-28 06:12:44,987 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-01-28 06:12:45,126 INFO L130 PetriNetUnfolder]: 285/474 cut-off events. [2023-01-28 06:12:45,126 INFO L131 PetriNetUnfolder]: For 49/49 co-relation queries the response was YES. [2023-01-28 06:12:45,129 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1020 conditions, 474 events. 285/474 cut-off events. For 49/49 co-relation queries the response was YES. Maximal size of possible extension queue 27. Compared 1667 event pairs, 103 based on Foata normal form. 12/486 useless extension candidates. Maximal degree in co-relation 858. Up to 385 conditions per place. [2023-01-28 06:12:45,133 INFO L137 encePairwiseOnDemand]: 130/134 looper letters, 28 selfloop transitions, 3 changer transitions 0/31 dead transitions. [2023-01-28 06:12:45,133 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 32 places, 31 transitions, 145 flow [2023-01-28 06:12:45,134 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-01-28 06:12:45,135 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-01-28 06:12:45,142 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 251 transitions. [2023-01-28 06:12:45,146 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6243781094527363 [2023-01-28 06:12:45,146 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 251 transitions. [2023-01-28 06:12:45,147 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 251 transitions. [2023-01-28 06:12:45,148 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-01-28 06:12:45,149 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 251 transitions. [2023-01-28 06:12:45,153 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 83.66666666666667) internal successors, (251), 3 states have internal predecessors, (251), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-28 06:12:45,156 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 134.0) internal successors, (536), 4 states have internal predecessors, (536), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-28 06:12:45,156 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 134.0) internal successors, (536), 4 states have internal predecessors, (536), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-28 06:12:45,157 INFO L175 Difference]: Start difference. First operand has 30 places, 20 transitions, 55 flow. Second operand 3 states and 251 transitions. [2023-01-28 06:12:45,158 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 32 places, 31 transitions, 145 flow [2023-01-28 06:12:45,161 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 27 places, 31 transitions, 133 flow, removed 0 selfloop flow, removed 5 redundant places. [2023-01-28 06:12:45,162 INFO L231 Difference]: Finished difference. Result has 28 places, 22 transitions, 65 flow [2023-01-28 06:12:45,163 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=134, PETRI_DIFFERENCE_MINUEND_FLOW=46, PETRI_DIFFERENCE_MINUEND_PLACES=25, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=20, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=17, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=65, PETRI_PLACES=28, PETRI_TRANSITIONS=22} [2023-01-28 06:12:45,166 INFO L281 CegarLoopForPetriNet]: 30 programPoint places, -2 predicate places. [2023-01-28 06:12:45,166 INFO L495 AbstractCegarLoop]: Abstraction has has 28 places, 22 transitions, 65 flow [2023-01-28 06:12:45,166 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 75.66666666666667) internal successors, (227), 3 states have internal predecessors, (227), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-28 06:12:45,166 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-28 06:12:45,166 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-01-28 06:12:45,167 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-01-28 06:12:45,167 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting thread3Err0ASSERT_VIOLATIONERROR_FUNCTION === [thread3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2023-01-28 06:12:45,169 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-28 06:12:45,169 INFO L85 PathProgramCache]: Analyzing trace with hash 2006927370, now seen corresponding path program 1 times [2023-01-28 06:12:45,169 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-28 06:12:45,169 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1885909162] [2023-01-28 06:12:45,169 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 06:12:45,169 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-28 06:12:45,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-28 06:12:45,257 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-01-28 06:12:45,257 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-28 06:12:45,258 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1885909162] [2023-01-28 06:12:45,258 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1885909162] provided 1 perfect and 0 imperfect interpolant sequences [2023-01-28 06:12:45,258 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-01-28 06:12:45,258 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-01-28 06:12:45,258 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [802834313] [2023-01-28 06:12:45,258 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-01-28 06:12:45,259 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-01-28 06:12:45,259 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-28 06:12:45,259 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-01-28 06:12:45,259 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-01-28 06:12:45,260 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 66 out of 134 [2023-01-28 06:12:45,260 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 28 places, 22 transitions, 65 flow. Second operand has 3 states, 3 states have (on average 69.0) internal successors, (207), 3 states have internal predecessors, (207), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-28 06:12:45,260 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-01-28 06:12:45,260 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 66 of 134 [2023-01-28 06:12:45,260 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-01-28 06:12:45,298 INFO L130 PetriNetUnfolder]: 68/171 cut-off events. [2023-01-28 06:12:45,298 INFO L131 PetriNetUnfolder]: For 7/7 co-relation queries the response was YES. [2023-01-28 06:12:45,299 INFO L83 FinitePrefix]: Finished finitePrefix Result has 409 conditions, 171 events. 68/171 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 634 event pairs, 13 based on Foata normal form. 50/221 useless extension candidates. Maximal degree in co-relation 166. Up to 117 conditions per place. [2023-01-28 06:12:45,300 INFO L137 encePairwiseOnDemand]: 129/134 looper letters, 24 selfloop transitions, 5 changer transitions 0/31 dead transitions. [2023-01-28 06:12:45,300 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 30 places, 31 transitions, 146 flow [2023-01-28 06:12:45,300 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-01-28 06:12:45,300 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-01-28 06:12:45,301 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 229 transitions. [2023-01-28 06:12:45,301 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5696517412935324 [2023-01-28 06:12:45,301 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 229 transitions. [2023-01-28 06:12:45,301 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 229 transitions. [2023-01-28 06:12:45,301 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-01-28 06:12:45,301 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 229 transitions. [2023-01-28 06:12:45,302 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 76.33333333333333) internal successors, (229), 3 states have internal predecessors, (229), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-28 06:12:45,303 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 134.0) internal successors, (536), 4 states have internal predecessors, (536), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-28 06:12:45,303 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 134.0) internal successors, (536), 4 states have internal predecessors, (536), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-28 06:12:45,303 INFO L175 Difference]: Start difference. First operand has 28 places, 22 transitions, 65 flow. Second operand 3 states and 229 transitions. [2023-01-28 06:12:45,303 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 30 places, 31 transitions, 146 flow [2023-01-28 06:12:45,304 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 29 places, 31 transitions, 143 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-01-28 06:12:45,304 INFO L231 Difference]: Finished difference. Result has 29 places, 22 transitions, 72 flow [2023-01-28 06:12:45,305 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=134, PETRI_DIFFERENCE_MINUEND_FLOW=62, PETRI_DIFFERENCE_MINUEND_PLACES=27, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=22, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=17, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=72, PETRI_PLACES=29, PETRI_TRANSITIONS=22} [2023-01-28 06:12:45,305 INFO L281 CegarLoopForPetriNet]: 30 programPoint places, -1 predicate places. [2023-01-28 06:12:45,305 INFO L495 AbstractCegarLoop]: Abstraction has has 29 places, 22 transitions, 72 flow [2023-01-28 06:12:45,305 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 69.0) internal successors, (207), 3 states have internal predecessors, (207), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-28 06:12:45,306 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-28 06:12:45,306 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-01-28 06:12:45,306 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-01-28 06:12:45,306 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting thread3Err0ASSERT_VIOLATIONERROR_FUNCTION === [thread3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2023-01-28 06:12:45,306 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-28 06:12:45,306 INFO L85 PathProgramCache]: Analyzing trace with hash 202521017, now seen corresponding path program 1 times [2023-01-28 06:12:45,306 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-28 06:12:45,306 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1495706095] [2023-01-28 06:12:45,307 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 06:12:45,307 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-28 06:12:45,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-28 06:12:45,342 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-01-28 06:12:45,342 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-28 06:12:45,342 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1495706095] [2023-01-28 06:12:45,343 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1495706095] provided 1 perfect and 0 imperfect interpolant sequences [2023-01-28 06:12:45,343 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-01-28 06:12:45,343 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-01-28 06:12:45,343 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1610203442] [2023-01-28 06:12:45,343 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-01-28 06:12:45,343 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-01-28 06:12:45,343 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-28 06:12:45,344 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-01-28 06:12:45,344 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-01-28 06:12:45,344 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 73 out of 134 [2023-01-28 06:12:45,345 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 29 places, 22 transitions, 72 flow. Second operand has 4 states, 4 states have (on average 75.75) internal successors, (303), 4 states have internal predecessors, (303), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-28 06:12:45,345 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-01-28 06:12:45,345 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 73 of 134 [2023-01-28 06:12:45,345 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-01-28 06:12:45,381 INFO L130 PetriNetUnfolder]: 75/176 cut-off events. [2023-01-28 06:12:45,381 INFO L131 PetriNetUnfolder]: For 39/39 co-relation queries the response was YES. [2023-01-28 06:12:45,381 INFO L83 FinitePrefix]: Finished finitePrefix Result has 475 conditions, 176 events. 75/176 cut-off events. For 39/39 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 545 event pairs, 32 based on Foata normal form. 2/178 useless extension candidates. Maximal degree in co-relation 172. Up to 107 conditions per place. [2023-01-28 06:12:45,382 INFO L137 encePairwiseOnDemand]: 130/134 looper letters, 30 selfloop transitions, 4 changer transitions 2/36 dead transitions. [2023-01-28 06:12:45,382 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 32 places, 36 transitions, 187 flow [2023-01-28 06:12:45,382 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-01-28 06:12:45,382 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-01-28 06:12:45,383 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 329 transitions. [2023-01-28 06:12:45,383 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6138059701492538 [2023-01-28 06:12:45,384 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 329 transitions. [2023-01-28 06:12:45,384 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 329 transitions. [2023-01-28 06:12:45,384 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-01-28 06:12:45,384 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 329 transitions. [2023-01-28 06:12:45,385 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 82.25) internal successors, (329), 4 states have internal predecessors, (329), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-28 06:12:45,386 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 134.0) internal successors, (670), 5 states have internal predecessors, (670), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-28 06:12:45,386 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 134.0) internal successors, (670), 5 states have internal predecessors, (670), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-28 06:12:45,386 INFO L175 Difference]: Start difference. First operand has 29 places, 22 transitions, 72 flow. Second operand 4 states and 329 transitions. [2023-01-28 06:12:45,386 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 32 places, 36 transitions, 187 flow [2023-01-28 06:12:45,387 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 31 places, 36 transitions, 177 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-01-28 06:12:45,387 INFO L231 Difference]: Finished difference. Result has 32 places, 22 transitions, 79 flow [2023-01-28 06:12:45,387 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=134, PETRI_DIFFERENCE_MINUEND_FLOW=67, PETRI_DIFFERENCE_MINUEND_PLACES=28, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=22, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=18, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=79, PETRI_PLACES=32, PETRI_TRANSITIONS=22} [2023-01-28 06:12:45,388 INFO L281 CegarLoopForPetriNet]: 30 programPoint places, 2 predicate places. [2023-01-28 06:12:45,388 INFO L495 AbstractCegarLoop]: Abstraction has has 32 places, 22 transitions, 79 flow [2023-01-28 06:12:45,388 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 75.75) internal successors, (303), 4 states have internal predecessors, (303), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-28 06:12:45,388 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-28 06:12:45,389 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-01-28 06:12:45,389 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-01-28 06:12:45,389 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting thread3Err0ASSERT_VIOLATIONERROR_FUNCTION === [thread3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2023-01-28 06:12:45,389 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-28 06:12:45,389 INFO L85 PathProgramCache]: Analyzing trace with hash -797098962, now seen corresponding path program 1 times [2023-01-28 06:12:45,389 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-28 06:12:45,389 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1985496772] [2023-01-28 06:12:45,390 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 06:12:45,390 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-28 06:12:45,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-28 06:12:45,431 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-01-28 06:12:45,432 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-28 06:12:45,432 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1985496772] [2023-01-28 06:12:45,432 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1985496772] provided 1 perfect and 0 imperfect interpolant sequences [2023-01-28 06:12:45,432 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-01-28 06:12:45,432 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-01-28 06:12:45,432 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1317467037] [2023-01-28 06:12:45,432 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-01-28 06:12:45,433 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-01-28 06:12:45,433 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-28 06:12:45,433 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-01-28 06:12:45,433 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-01-28 06:12:45,434 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 72 out of 134 [2023-01-28 06:12:45,434 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 32 places, 22 transitions, 79 flow. Second operand has 5 states, 5 states have (on average 74.4) internal successors, (372), 5 states have internal predecessors, (372), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-28 06:12:45,434 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-01-28 06:12:45,434 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 72 of 134 [2023-01-28 06:12:45,434 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-01-28 06:12:45,493 INFO L130 PetriNetUnfolder]: 72/169 cut-off events. [2023-01-28 06:12:45,494 INFO L131 PetriNetUnfolder]: For 71/71 co-relation queries the response was YES. [2023-01-28 06:12:45,494 INFO L83 FinitePrefix]: Finished finitePrefix Result has 450 conditions, 169 events. 72/169 cut-off events. For 71/71 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 526 event pairs, 17 based on Foata normal form. 4/173 useless extension candidates. Maximal degree in co-relation 288. Up to 89 conditions per place. [2023-01-28 06:12:45,495 INFO L137 encePairwiseOnDemand]: 129/134 looper letters, 36 selfloop transitions, 5 changer transitions 2/43 dead transitions. [2023-01-28 06:12:45,495 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 36 places, 43 transitions, 221 flow [2023-01-28 06:12:45,495 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-01-28 06:12:45,495 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-01-28 06:12:45,496 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 404 transitions. [2023-01-28 06:12:45,496 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6029850746268657 [2023-01-28 06:12:45,496 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 404 transitions. [2023-01-28 06:12:45,496 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 404 transitions. [2023-01-28 06:12:45,497 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-01-28 06:12:45,497 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 404 transitions. [2023-01-28 06:12:45,497 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 80.8) internal successors, (404), 5 states have internal predecessors, (404), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-28 06:12:45,499 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 134.0) internal successors, (804), 6 states have internal predecessors, (804), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-28 06:12:45,499 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 134.0) internal successors, (804), 6 states have internal predecessors, (804), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-28 06:12:45,499 INFO L175 Difference]: Start difference. First operand has 32 places, 22 transitions, 79 flow. Second operand 5 states and 404 transitions. [2023-01-28 06:12:45,499 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 36 places, 43 transitions, 221 flow [2023-01-28 06:12:45,500 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 34 places, 43 transitions, 213 flow, removed 1 selfloop flow, removed 2 redundant places. [2023-01-28 06:12:45,501 INFO L231 Difference]: Finished difference. Result has 36 places, 23 transitions, 92 flow [2023-01-28 06:12:45,501 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=134, PETRI_DIFFERENCE_MINUEND_FLOW=71, PETRI_DIFFERENCE_MINUEND_PLACES=30, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=22, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=17, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=92, PETRI_PLACES=36, PETRI_TRANSITIONS=23} [2023-01-28 06:12:45,502 INFO L281 CegarLoopForPetriNet]: 30 programPoint places, 6 predicate places. [2023-01-28 06:12:45,502 INFO L495 AbstractCegarLoop]: Abstraction has has 36 places, 23 transitions, 92 flow [2023-01-28 06:12:45,502 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 74.4) internal successors, (372), 5 states have internal predecessors, (372), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-28 06:12:45,502 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-28 06:12:45,502 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-01-28 06:12:45,502 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-01-28 06:12:45,502 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting thread3Err0ASSERT_VIOLATIONERROR_FUNCTION === [thread3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2023-01-28 06:12:45,503 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-28 06:12:45,503 INFO L85 PathProgramCache]: Analyzing trace with hash 1877937628, now seen corresponding path program 1 times [2023-01-28 06:12:45,503 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-28 06:12:45,503 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1663421296] [2023-01-28 06:12:45,503 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 06:12:45,503 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-28 06:12:45,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-01-28 06:12:45,521 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-01-28 06:12:45,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-01-28 06:12:45,544 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-01-28 06:12:45,544 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-01-28 06:12:45,545 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location thread3Err0ASSERT_VIOLATIONERROR_FUNCTION (4 of 5 remaining) [2023-01-28 06:12:45,546 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread3Err0ASSERT_VIOLATIONERROR_FUNCTION (3 of 5 remaining) [2023-01-28 06:12:45,546 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 5 remaining) [2023-01-28 06:12:45,546 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 5 remaining) [2023-01-28 06:12:45,546 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 5 remaining) [2023-01-28 06:12:45,546 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-01-28 06:12:45,546 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2023-01-28 06:12:45,550 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-01-28 06:12:45,550 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-01-28 06:12:45,568 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.01 06:12:45 BasicIcfg [2023-01-28 06:12:45,568 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-01-28 06:12:45,569 INFO L158 Benchmark]: Toolchain (without parser) took 3618.27ms. Allocated memory is still 788.5MB. Free memory was 751.5MB in the beginning and 656.7MB in the end (delta: 94.8MB). Peak memory consumption was 96.9MB. Max. memory is 16.0GB. [2023-01-28 06:12:45,569 INFO L158 Benchmark]: CDTParser took 0.09ms. Allocated memory is still 406.8MB. Free memory is still 358.9MB. There was no memory consumed. Max. memory is 16.0GB. [2023-01-28 06:12:45,569 INFO L158 Benchmark]: CACSL2BoogieTranslator took 279.22ms. Allocated memory is still 788.5MB. Free memory was 751.5MB in the beginning and 732.2MB in the end (delta: 19.3MB). Peak memory consumption was 21.0MB. Max. memory is 16.0GB. [2023-01-28 06:12:45,570 INFO L158 Benchmark]: Boogie Procedure Inliner took 25.77ms. Allocated memory is still 788.5MB. Free memory was 732.2MB in the beginning and 730.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-01-28 06:12:45,570 INFO L158 Benchmark]: Boogie Preprocessor took 23.35ms. Allocated memory is still 788.5MB. Free memory was 730.1MB in the beginning and 728.7MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.0GB. [2023-01-28 06:12:45,570 INFO L158 Benchmark]: RCFGBuilder took 385.89ms. Allocated memory is still 788.5MB. Free memory was 728.7MB in the beginning and 714.3MB in the end (delta: 14.4MB). Peak memory consumption was 14.7MB. Max. memory is 16.0GB. [2023-01-28 06:12:45,570 INFO L158 Benchmark]: TraceAbstraction took 2898.76ms. Allocated memory is still 788.5MB. Free memory was 713.9MB in the beginning and 656.7MB in the end (delta: 57.2MB). Peak memory consumption was 59.2MB. Max. memory is 16.0GB. [2023-01-28 06:12:45,572 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 406.8MB. Free memory is still 358.9MB. There was no memory consumed. Max. memory is 16.0GB. * CACSL2BoogieTranslator took 279.22ms. Allocated memory is still 788.5MB. Free memory was 751.5MB in the beginning and 732.2MB in the end (delta: 19.3MB). Peak memory consumption was 21.0MB. Max. memory is 16.0GB. * Boogie Procedure Inliner took 25.77ms. Allocated memory is still 788.5MB. Free memory was 732.2MB in the beginning and 730.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * Boogie Preprocessor took 23.35ms. Allocated memory is still 788.5MB. Free memory was 730.1MB in the beginning and 728.7MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.0GB. * RCFGBuilder took 385.89ms. Allocated memory is still 788.5MB. Free memory was 728.7MB in the beginning and 714.3MB in the end (delta: 14.4MB). Peak memory consumption was 14.7MB. Max. memory is 16.0GB. * TraceAbstraction took 2898.76ms. Allocated memory is still 788.5MB. Free memory was 713.9MB in the beginning and 656.7MB in the end (delta: 57.2MB). Peak memory consumption was 59.2MB. Max. memory is 16.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 1.8s, 77 PlacesBefore, 30 PlacesAfterwards, 67 TransitionsBefore, 20 TransitionsAfterwards, 814 CoEnabledTransitionPairs, 6 FixpointIterations, 23 TrivialSequentialCompositions, 24 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 47 TotalNumberOfCompositions, 1727 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 1106, independent: 1020, independent conditional: 0, independent unconditional: 1020, dependent: 86, dependent conditional: 0, dependent unconditional: 86, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 443, independent: 427, independent conditional: 0, independent unconditional: 427, dependent: 16, dependent conditional: 0, dependent unconditional: 16, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 1106, independent: 593, independent conditional: 0, independent unconditional: 593, dependent: 70, dependent conditional: 0, dependent unconditional: 70, unknown: 443, unknown conditional: 0, unknown unconditional: 443] , Statistics on independence cache: Total cache size (in pairs): 62, Positive cache size: 55, Positive conditional cache size: 0, Positive unconditional cache size: 55, Negative cache size: 7, Negative conditional cache size: 0, Negative unconditional cache size: 7, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - CounterExampleResult [Line: 722]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L702] 0 pthread_mutex_t mutex; [L703] 0 int data = 0; [L731] 0 pthread_t t1, t2, t3; [L732] FCALL, FORK 0 pthread_create(&t1, 0, thread1, 0) VAL [arg={0:0}, data=0, mutex={3:0}, pthread_create(&t1, 0, thread1, 0)=-2, t1={7:0}, t2={5:0}, t3={6:0}] [L733] FCALL, FORK 0 pthread_create(&t2, 0, thread2, 0) VAL [arg={0:0}, arg={0:0}, arg={0:0}, data=0, mutex={3:0}, pthread_create(&t2, 0, thread2, 0)=-1, pthread_mutex_lock(&mutex)=0, t1={7:0}, t2={5:0}, t3={6:0}] [L734] FCALL, FORK 0 pthread_create(&t3, 0, thread3, 0) VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, data=0, mutex={3:0}, pthread_create(&t3, 0, thread3, 0)=0, pthread_mutex_lock(&mutex)=0, t1={7:0}, t2={5:0}, t3={6:0}] [L707] 1 data++ VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, data=1, mutex={3:0}] [L709] 1 return 0; [L714] 2 data+=2 VAL [\result={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, data=3, mutex={3:0}] [L716] 2 return 0; [L721] COND TRUE 3 data >= 3 [L722] 3 reach_error() VAL [\result={0:0}, \result={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, data=3, mutex={3:0}] - UnprovableResult [Line: 734]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - UnprovableResult [Line: 733]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - UnprovableResult [Line: 732]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 7 procedures, 119 locations, 5 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: 2.8s, OverallIterations: 5, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 1.9s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 43 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 43 mSDsluCounter, 0 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 4 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 205 IncrementalHoareTripleChecker+Invalid, 209 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 4 mSolverCounterUnsat, 0 mSDtfsCounter, 205 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=92occurred in iteration=4, InterpolantAutomatonStates: 15, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 56 NumberOfCodeBlocks, 56 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 37 ConstructedInterpolants, 0 QuantifiedInterpolants, 111 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2023-01-28 06:12:45,588 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...