/usr/bin/java -Xmx8000000000 -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-SemanticLbe.epf --traceabstraction.use.on-demand.petri.net.difference true --traceabstraction.size.reduction.to.apply.after.petri.net.difference REMOVE_DEAD -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread/stateful01-1.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.repeated-lipton-a802222-m [2022-12-12 21:28:55,280 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-12 21:28:55,281 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-12 21:28:55,325 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-12 21:28:55,326 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-12 21:28:55,327 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-12 21:28:55,328 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-12 21:28:55,329 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-12 21:28:55,330 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-12 21:28:55,331 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-12 21:28:55,335 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-12 21:28:55,337 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-12 21:28:55,340 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-12 21:28:55,345 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-12 21:28:55,346 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-12 21:28:55,348 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-12 21:28:55,349 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-12 21:28:55,350 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-12 21:28:55,355 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-12 21:28:55,357 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-12 21:28:55,357 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-12 21:28:55,361 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-12 21:28:55,362 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-12 21:28:55,362 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-12 21:28:55,365 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-12 21:28:55,365 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-12 21:28:55,365 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-12 21:28:55,365 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-12 21:28:55,366 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-12 21:28:55,366 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-12 21:28:55,366 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-12 21:28:55,367 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-12 21:28:55,367 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-12 21:28:55,368 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-12 21:28:55,368 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-12 21:28:55,369 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-12 21:28:55,369 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-12 21:28:55,369 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-12 21:28:55,369 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-12 21:28:55,370 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-12 21:28:55,370 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-12 21:28:55,379 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-SemanticLbe.epf [2022-12-12 21:28:55,402 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-12 21:28:55,402 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-12 21:28:55,403 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-12 21:28:55,403 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-12 21:28:55,404 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-12 21:28:55,404 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-12 21:28:55,405 INFO L138 SettingsManager]: * Use SBE=true [2022-12-12 21:28:55,405 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-12 21:28:55,405 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-12 21:28:55,405 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-12 21:28:55,405 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-12 21:28:55,406 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-12 21:28:55,406 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-12 21:28:55,406 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-12 21:28:55,406 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-12 21:28:55,406 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-12 21:28:55,406 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-12 21:28:55,406 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-12 21:28:55,406 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-12 21:28:55,406 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-12 21:28:55,407 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-12 21:28:55,407 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-12-12 21:28:55,407 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-12 21:28:55,407 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-12 21:28:55,407 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-12 21:28:55,407 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-12 21:28:55,407 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-12 21:28:55,407 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-12 21:28:55,408 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-12 21:28:55,408 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-12 21:28:55,408 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use on-demand Petri net difference -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Size reduction to apply after Petri net difference -> REMOVE_DEAD [2022-12-12 21:28:55,654 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-12 21:28:55,683 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-12 21:28:55,685 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-12 21:28:55,685 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-12 21:28:55,686 INFO L275 PluginConnector]: CDTParser initialized [2022-12-12 21:28:55,687 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread/stateful01-1.i [2022-12-12 21:28:56,705 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-12 21:28:56,917 INFO L351 CDTParser]: Found 1 translation units. [2022-12-12 21:28:56,918 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread/stateful01-1.i [2022-12-12 21:28:56,925 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/45de65bb3/7cad2ce10a8c4b9f802dabed060633d2/FLAG76a099a80 [2022-12-12 21:28:56,936 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/45de65bb3/7cad2ce10a8c4b9f802dabed060633d2 [2022-12-12 21:28:56,938 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-12 21:28:56,938 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-12-12 21:28:56,939 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-12 21:28:56,939 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-12 21:28:56,941 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-12 21:28:56,941 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.12 09:28:56" (1/1) ... [2022-12-12 21:28:56,942 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1a8d78a2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 09:28:56, skipping insertion in model container [2022-12-12 21:28:56,942 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.12 09:28:56" (1/1) ... [2022-12-12 21:28:56,946 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-12 21:28:56,982 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-12 21:28:57,202 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread/stateful01-1.i[30826,30839] [2022-12-12 21:28:57,205 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-12 21:28:57,214 INFO L203 MainTranslator]: Completed pre-run [2022-12-12 21:28:57,248 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread/stateful01-1.i[30826,30839] [2022-12-12 21:28:57,248 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-12 21:28:57,275 INFO L208 MainTranslator]: Completed translation [2022-12-12 21:28:57,276 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 09:28:57 WrapperNode [2022-12-12 21:28:57,276 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-12 21:28:57,277 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-12 21:28:57,277 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-12 21:28:57,277 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-12 21:28:57,281 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 09:28:57" (1/1) ... [2022-12-12 21:28:57,291 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 09:28:57" (1/1) ... [2022-12-12 21:28:57,304 INFO L138 Inliner]: procedures = 168, calls = 34, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 63 [2022-12-12 21:28:57,304 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-12 21:28:57,305 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-12 21:28:57,305 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-12 21:28:57,305 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-12 21:28:57,310 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 09:28:57" (1/1) ... [2022-12-12 21:28:57,310 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 09:28:57" (1/1) ... [2022-12-12 21:28:57,313 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 09:28:57" (1/1) ... [2022-12-12 21:28:57,313 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 09:28:57" (1/1) ... [2022-12-12 21:28:57,316 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 09:28:57" (1/1) ... [2022-12-12 21:28:57,317 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 09:28:57" (1/1) ... [2022-12-12 21:28:57,318 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 09:28:57" (1/1) ... [2022-12-12 21:28:57,318 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 09:28:57" (1/1) ... [2022-12-12 21:28:57,320 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-12 21:28:57,321 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-12 21:28:57,321 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-12 21:28:57,321 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-12 21:28:57,321 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 09:28:57" (1/1) ... [2022-12-12 21:28:57,325 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-12 21:28:57,336 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-12 21:28:57,365 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) [2022-12-12 21:28:57,384 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 [2022-12-12 21:28:57,396 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-12 21:28:57,397 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-12-12 21:28:57,397 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-12-12 21:28:57,397 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-12-12 21:28:57,397 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-12-12 21:28:57,397 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-12 21:28:57,397 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-12-12 21:28:57,398 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-12 21:28:57,398 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-12 21:28:57,398 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-12 21:28:57,398 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-12 21:28:57,398 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-12 21:28:57,398 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-12 21:28:57,399 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2022-12-12 21:28:57,485 INFO L236 CfgBuilder]: Building ICFG [2022-12-12 21:28:57,487 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-12 21:28:57,651 INFO L277 CfgBuilder]: Performing block encoding [2022-12-12 21:28:57,656 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-12 21:28:57,656 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-12 21:28:57,657 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.12 09:28:57 BoogieIcfgContainer [2022-12-12 21:28:57,657 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-12 21:28:57,659 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-12 21:28:57,659 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-12 21:28:57,661 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-12 21:28:57,661 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.12 09:28:56" (1/3) ... [2022-12-12 21:28:57,662 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@48d137d7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.12 09:28:57, skipping insertion in model container [2022-12-12 21:28:57,662 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 09:28:57" (2/3) ... [2022-12-12 21:28:57,662 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@48d137d7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.12 09:28:57, skipping insertion in model container [2022-12-12 21:28:57,662 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.12 09:28:57" (3/3) ... [2022-12-12 21:28:57,669 INFO L112 eAbstractionObserver]: Analyzing ICFG stateful01-1.i [2022-12-12 21:28:57,683 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-12 21:28:57,683 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-12-12 21:28:57,683 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-12-12 21:28:57,736 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2022-12-12 21:28:57,761 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 95 places, 89 transitions, 194 flow [2022-12-12 21:28:57,798 INFO L130 PetriNetUnfolder]: 1/87 cut-off events. [2022-12-12 21:28:57,799 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-12-12 21:28:57,801 INFO L83 FinitePrefix]: Finished finitePrefix Result has 96 conditions, 87 events. 1/87 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 51 event pairs, 0 based on Foata normal form. 0/85 useless extension candidates. Maximal degree in co-relation 28. Up to 2 conditions per place. [2022-12-12 21:28:57,802 INFO L82 GeneralOperation]: Start removeDead. Operand has 95 places, 89 transitions, 194 flow [2022-12-12 21:28:57,804 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 84 places, 77 transitions, 166 flow [2022-12-12 21:28:57,805 INFO L203 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-12 21:28:57,817 INFO L174 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 84 places, 77 transitions, 166 flow [2022-12-12 21:28:57,824 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 84 places, 77 transitions, 166 flow [2022-12-12 21:28:57,845 INFO L130 PetriNetUnfolder]: 0/77 cut-off events. [2022-12-12 21:28:57,845 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-12-12 21:28:57,845 INFO L83 FinitePrefix]: Finished finitePrefix Result has 86 conditions, 77 events. 0/77 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 44 event pairs, 0 based on Foata normal form. 0/77 useless extension candidates. Maximal degree in co-relation 0. Up to 2 conditions per place. [2022-12-12 21:28:57,847 INFO L222 LiptonReduction]: Starting Lipton reduction on Petri net that has 84 places, 77 transitions, 166 flow [2022-12-12 21:28:57,847 INFO L226 LiptonReduction]: Number of co-enabled transitions 732 [2022-12-12 21:29:00,786 INFO L241 LiptonReduction]: Total number of compositions: 54 [2022-12-12 21:29:00,817 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-12 21:29:00,833 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;@6d04377c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, Conditionality=CONDITIONAL_DISJUNCTIVE, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-12 21:29:00,834 INFO L358 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2022-12-12 21:29:00,844 INFO L130 PetriNetUnfolder]: 0/22 cut-off events. [2022-12-12 21:29:00,845 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-12-12 21:29:00,845 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 21:29:00,845 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-12 21:29:00,846 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-12 21:29:00,849 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 21:29:00,856 INFO L85 PathProgramCache]: Analyzing trace with hash -1235596550, now seen corresponding path program 1 times [2022-12-12 21:29:00,863 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 21:29:00,863 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [613432365] [2022-12-12 21:29:00,864 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 21:29:00,864 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 21:29:01,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-12 21:29:01,034 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-12 21:29:01,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-12 21:29:01,108 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-12-12 21:29:01,109 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-12-12 21:29:01,110 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 3 remaining) [2022-12-12 21:29:01,111 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 3 remaining) [2022-12-12 21:29:01,112 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 3 remaining) [2022-12-12 21:29:01,112 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-12 21:29:01,112 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2022-12-12 21:29:01,116 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-12-12 21:29:01,117 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-12 21:29:01,146 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.12 09:29:01 BasicIcfg [2022-12-12 21:29:01,146 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-12 21:29:01,152 INFO L158 Benchmark]: Toolchain (without parser) took 4208.49ms. Allocated memory was 189.8MB in the beginning and 228.6MB in the end (delta: 38.8MB). Free memory was 164.7MB in the beginning and 193.6MB in the end (delta: -29.0MB). Peak memory consumption was 10.3MB. Max. memory is 8.0GB. [2022-12-12 21:29:01,153 INFO L158 Benchmark]: CDTParser took 0.09ms. Allocated memory is still 189.8MB. Free memory was 165.8MB in the beginning and 165.7MB in the end (delta: 83.8kB). There was no memory consumed. Max. memory is 8.0GB. [2022-12-12 21:29:01,153 INFO L158 Benchmark]: CACSL2BoogieTranslator took 337.18ms. Allocated memory is still 189.8MB. Free memory was 164.1MB in the beginning and 144.6MB in the end (delta: 19.5MB). Peak memory consumption was 19.9MB. Max. memory is 8.0GB. [2022-12-12 21:29:01,153 INFO L158 Benchmark]: Boogie Procedure Inliner took 27.26ms. Allocated memory is still 189.8MB. Free memory was 144.6MB in the beginning and 142.6MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-12-12 21:29:01,154 INFO L158 Benchmark]: Boogie Preprocessor took 15.50ms. Allocated memory is still 189.8MB. Free memory was 142.6MB in the beginning and 141.1MB in the end (delta: 1.6MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-12-12 21:29:01,154 INFO L158 Benchmark]: RCFGBuilder took 336.86ms. Allocated memory is still 189.8MB. Free memory was 141.1MB in the beginning and 126.9MB in the end (delta: 14.2MB). Peak memory consumption was 14.7MB. Max. memory is 8.0GB. [2022-12-12 21:29:01,154 INFO L158 Benchmark]: TraceAbstraction took 3487.38ms. Allocated memory was 189.8MB in the beginning and 228.6MB in the end (delta: 38.8MB). Free memory was 125.9MB in the beginning and 193.6MB in the end (delta: -67.8MB). There was no memory consumed. Max. memory is 8.0GB. [2022-12-12 21:29:01,156 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 189.8MB. Free memory was 165.8MB in the beginning and 165.7MB in the end (delta: 83.8kB). There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 337.18ms. Allocated memory is still 189.8MB. Free memory was 164.1MB in the beginning and 144.6MB in the end (delta: 19.5MB). Peak memory consumption was 19.9MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 27.26ms. Allocated memory is still 189.8MB. Free memory was 144.6MB in the beginning and 142.6MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 15.50ms. Allocated memory is still 189.8MB. Free memory was 142.6MB in the beginning and 141.1MB in the end (delta: 1.6MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 336.86ms. Allocated memory is still 189.8MB. Free memory was 141.1MB in the beginning and 126.9MB in the end (delta: 14.2MB). Peak memory consumption was 14.7MB. Max. memory is 8.0GB. * TraceAbstraction took 3487.38ms. Allocated memory was 189.8MB in the beginning and 228.6MB in the end (delta: 38.8MB). Free memory was 125.9MB in the beginning and 193.6MB in the end (delta: -67.8MB). There was no memory consumed. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 2.9s, 84 PlacesBefore, 30 PlacesAfterwards, 77 TransitionsBefore, 23 TransitionsAfterwards, 732 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 35 TrivialYvCompositions, 19 ConcurrentYvCompositions, 0 ChoiceCompositions, 54 TotalNumberOfCompositions, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 603, independent: 546, independent conditional: 546, independent unconditional: 0, dependent: 57, dependent conditional: 57, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 603, independent: 546, independent conditional: 0, independent unconditional: 546, dependent: 57, dependent conditional: 0, dependent unconditional: 57, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 603, independent: 546, independent conditional: 0, independent unconditional: 546, dependent: 57, dependent conditional: 0, dependent unconditional: 57, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 603, independent: 546, independent conditional: 0, independent unconditional: 546, dependent: 57, dependent conditional: 0, dependent unconditional: 57, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 464, independent: 435, independent conditional: 0, independent unconditional: 435, dependent: 29, dependent conditional: 0, dependent unconditional: 29, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 464, independent: 415, independent conditional: 0, independent unconditional: 415, dependent: 49, dependent conditional: 0, dependent unconditional: 49, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 49, independent: 20, independent conditional: 0, independent unconditional: 20, dependent: 29, dependent conditional: 0, dependent unconditional: 29, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 77, independent: 36, independent conditional: 0, independent unconditional: 36, dependent: 41, dependent conditional: 0, dependent unconditional: 41, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 603, independent: 111, independent conditional: 0, independent unconditional: 111, dependent: 28, dependent conditional: 0, dependent unconditional: 28, unknown: 464, unknown conditional: 0, unknown unconditional: 464] , Statistics on independence cache: Total cache size (in pairs): 595, Positive cache size: 566, Positive conditional cache size: 0, Positive unconditional cache size: 566, Negative cache size: 29, Negative conditional cache size: 0, Negative unconditional cache size: 29, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 0, Maximal queried relation: -1 - CounterExampleResult [Line: 727]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L692] 0 pthread_mutex_t ma, mb; [L693] 0 int data1, data2; [L716] 0 pthread_t t1, t2; [L719] 0 data1 = 10 [L720] 0 data2 = 10 [L721] FCALL, FORK 0 pthread_create(&t1, 0, thread1, 0) VAL [arg={0:0}, data1=10, data2=10, ma={3:0}, mb={4:0}, pthread_create(&t1, 0, thread1, 0)=-2, t1={6:0}, t2={5:0}] [L722] FCALL, FORK 0 pthread_create(&t2, 0, thread2, 0) VAL [arg={0:0}, arg={0:0}, data1=10, data2=10, ma={3:0}, mb={4:0}, pthread_create(&t2, 0, thread2, 0)=-1, t1={6:0}, t2={5:0}] [L707] 2 data1+=5 VAL [arg={0:0}, arg={0:0}, arg={0:0}, data1=15, data2=10, ma={3:0}, mb={4:0}] [L710] 2 data2-=6 VAL [arg={0:0}, arg={0:0}, arg={0:0}, data1=15, data2=4, ma={3:0}, mb={4:0}] [L712] 2 return 0; [L697] 1 data1++ VAL [\result={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, data1=16, data2=4, ma={3:0}, mb={4:0}] [L700] 1 data2++ [L702] 1 return 0; [L723] 0 \read(t1) VAL [\read(t1)=-2, \result={0:0}, \result={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, data1=16, data2=5, ma={3:0}, mb={4:0}, t1={6:0}, t2={5:0}] [L723] FCALL, JOIN 1 pthread_join(t1, 0) VAL [\read(t1)=-2, \result={0:0}, \result={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, data1=16, data2=5, ma={3:0}, mb={4:0}, t1={6:0}, t2={5:0}] [L724] 0 \read(t2) VAL [\read(t2)=-1, \result={0:0}, \result={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, data1=16, data2=5, ma={3:0}, mb={4:0}, t1={6:0}, t2={5:0}] [L724] FCALL, JOIN 2 pthread_join(t2, 0) VAL [\read(t2)=-1, \result={0:0}, \result={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, data1=16, data2=5, ma={3:0}, mb={4:0}, t1={6:0}, t2={5:0}] [L725] COND TRUE 0 data1==16 && data2==5 [L727] 0 reach_error() VAL [\result={0:0}, \result={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, data1=16, data2=5, ma={3:0}, mb={4:0}, t1={6:0}, t2={5:0}] - UnprovableResult [Line: 722]: 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: 721]: 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 5 procedures, 119 locations, 3 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: 3.3s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 3.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=58occurred in iteration=0, InterpolantAutomatonStates: 0, 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, 0.0s InterpolantComputationTime, 23 NumberOfCodeBlocks, 23 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 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! [2022-12-12 21:29:01,176 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 Received shutdown request...