/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-NoLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread/stateful01-1.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-?-0612a5f-m [2022-09-20 20:27:27,342 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-09-20 20:27:27,344 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-09-20 20:27:27,382 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-09-20 20:27:27,382 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-09-20 20:27:27,385 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-09-20 20:27:27,389 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-09-20 20:27:27,394 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-09-20 20:27:27,396 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-09-20 20:27:27,400 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-09-20 20:27:27,401 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-09-20 20:27:27,402 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-09-20 20:27:27,403 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-09-20 20:27:27,404 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-09-20 20:27:27,406 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-09-20 20:27:27,407 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-09-20 20:27:27,408 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-09-20 20:27:27,408 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-09-20 20:27:27,413 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-09-20 20:27:27,420 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-09-20 20:27:27,421 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-09-20 20:27:27,423 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-09-20 20:27:27,424 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-09-20 20:27:27,425 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-09-20 20:27:27,431 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-09-20 20:27:27,432 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-09-20 20:27:27,432 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-09-20 20:27:27,433 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-09-20 20:27:27,434 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-09-20 20:27:27,435 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-09-20 20:27:27,435 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-09-20 20:27:27,436 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-09-20 20:27:27,437 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-09-20 20:27:27,438 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-09-20 20:27:27,439 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-09-20 20:27:27,439 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-09-20 20:27:27,439 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-09-20 20:27:27,439 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-09-20 20:27:27,440 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-09-20 20:27:27,440 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-09-20 20:27:27,441 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-09-20 20:27:27,442 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-NoLbe.epf [2022-09-20 20:27:27,470 INFO L113 SettingsManager]: Loading preferences was successful [2022-09-20 20:27:27,470 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-09-20 20:27:27,471 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-09-20 20:27:27,471 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-09-20 20:27:27,472 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-09-20 20:27:27,472 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-09-20 20:27:27,472 INFO L138 SettingsManager]: * Use SBE=true [2022-09-20 20:27:27,472 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-09-20 20:27:27,472 INFO L138 SettingsManager]: * sizeof long=4 [2022-09-20 20:27:27,473 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-09-20 20:27:27,473 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-09-20 20:27:27,473 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-09-20 20:27:27,473 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-09-20 20:27:27,474 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-09-20 20:27:27,474 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-09-20 20:27:27,474 INFO L138 SettingsManager]: * sizeof long double=12 [2022-09-20 20:27:27,474 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-09-20 20:27:27,474 INFO L138 SettingsManager]: * Use constant arrays=true [2022-09-20 20:27:27,474 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-09-20 20:27:27,474 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-09-20 20:27:27,474 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-09-20 20:27:27,475 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-09-20 20:27:27,475 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-09-20 20:27:27,475 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-09-20 20:27:27,475 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-09-20 20:27:27,475 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-09-20 20:27:27,475 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-09-20 20:27:27,475 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-09-20 20:27:27,475 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-09-20 20:27:27,476 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-09-20 20:27:27,476 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-09-20 20:27:27,476 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-09-20 20:27:27,733 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-09-20 20:27:27,756 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-09-20 20:27:27,758 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-09-20 20:27:27,758 INFO L271 PluginConnector]: Initializing CDTParser... [2022-09-20 20:27:27,759 INFO L275 PluginConnector]: CDTParser initialized [2022-09-20 20:27:27,760 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread/stateful01-1.i [2022-09-20 20:27:27,812 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e1f2becee/ff740ab8def64d7f8f7b57eefb73a6a2/FLAG8644b298b [2022-09-20 20:27:28,307 INFO L306 CDTParser]: Found 1 translation units. [2022-09-20 20:27:28,308 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread/stateful01-1.i [2022-09-20 20:27:28,328 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e1f2becee/ff740ab8def64d7f8f7b57eefb73a6a2/FLAG8644b298b [2022-09-20 20:27:28,624 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e1f2becee/ff740ab8def64d7f8f7b57eefb73a6a2 [2022-09-20 20:27:28,626 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-09-20 20:27:28,627 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-09-20 20:27:28,628 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-09-20 20:27:28,628 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-09-20 20:27:28,633 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-09-20 20:27:28,634 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 08:27:28" (1/1) ... [2022-09-20 20:27:28,636 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@243c38fe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 08:27:28, skipping insertion in model container [2022-09-20 20:27:28,636 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 08:27:28" (1/1) ... [2022-09-20 20:27:28,642 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-09-20 20:27:28,674 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-09-20 20:27:28,930 WARN L230 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] [2022-09-20 20:27:28,933 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-09-20 20:27:28,945 INFO L203 MainTranslator]: Completed pre-run [2022-09-20 20:27:28,978 WARN L230 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] [2022-09-20 20:27:28,979 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-09-20 20:27:29,008 INFO L208 MainTranslator]: Completed translation [2022-09-20 20:27:29,008 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 08:27:29 WrapperNode [2022-09-20 20:27:29,008 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-09-20 20:27:29,009 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-09-20 20:27:29,009 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-09-20 20:27:29,009 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-09-20 20:27:29,016 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 08:27:29" (1/1) ... [2022-09-20 20:27:29,048 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 08:27:29" (1/1) ... [2022-09-20 20:27:29,066 INFO L138 Inliner]: procedures = 168, calls = 34, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 63 [2022-09-20 20:27:29,067 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-09-20 20:27:29,067 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-09-20 20:27:29,067 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-09-20 20:27:29,068 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-09-20 20:27:29,074 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 08:27:29" (1/1) ... [2022-09-20 20:27:29,074 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 08:27:29" (1/1) ... [2022-09-20 20:27:29,077 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 08:27:29" (1/1) ... [2022-09-20 20:27:29,077 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 08:27:29" (1/1) ... [2022-09-20 20:27:29,083 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 08:27:29" (1/1) ... [2022-09-20 20:27:29,085 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 08:27:29" (1/1) ... [2022-09-20 20:27:29,086 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 08:27:29" (1/1) ... [2022-09-20 20:27:29,089 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-09-20 20:27:29,089 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-09-20 20:27:29,089 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-09-20 20:27:29,090 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-09-20 20:27:29,090 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 08:27:29" (1/1) ... [2022-09-20 20:27:29,103 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-09-20 20:27:29,114 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-20 20:27:29,133 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) [2022-09-20 20:27:29,159 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 [2022-09-20 20:27:29,182 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-09-20 20:27:29,183 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-09-20 20:27:29,183 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-09-20 20:27:29,183 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-09-20 20:27:29,183 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-09-20 20:27:29,183 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-09-20 20:27:29,183 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-09-20 20:27:29,183 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-09-20 20:27:29,184 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-09-20 20:27:29,184 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-09-20 20:27:29,184 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-09-20 20:27:29,184 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-09-20 20:27:29,184 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-09-20 20:27:29,186 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-09-20 20:27:29,290 INFO L234 CfgBuilder]: Building ICFG [2022-09-20 20:27:29,291 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-09-20 20:27:29,513 INFO L275 CfgBuilder]: Performing block encoding [2022-09-20 20:27:29,520 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-09-20 20:27:29,520 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-09-20 20:27:29,522 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 08:27:29 BoogieIcfgContainer [2022-09-20 20:27:29,522 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-09-20 20:27:29,524 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-09-20 20:27:29,524 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-09-20 20:27:29,527 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-09-20 20:27:29,527 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.09 08:27:28" (1/3) ... [2022-09-20 20:27:29,528 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@184e77b8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.09 08:27:29, skipping insertion in model container [2022-09-20 20:27:29,528 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 08:27:29" (2/3) ... [2022-09-20 20:27:29,528 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@184e77b8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.09 08:27:29, skipping insertion in model container [2022-09-20 20:27:29,528 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 08:27:29" (3/3) ... [2022-09-20 20:27:29,529 INFO L112 eAbstractionObserver]: Analyzing ICFG stateful01-1.i [2022-09-20 20:27:29,546 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-09-20 20:27:29,546 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-09-20 20:27:29,546 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-09-20 20:27:29,633 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2022-09-20 20:27:29,683 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 99 places, 93 transitions, 202 flow [2022-09-20 20:27:29,748 INFO L130 PetriNetUnfolder]: 1/91 cut-off events. [2022-09-20 20:27:29,748 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-09-20 20:27:29,750 INFO L83 FinitePrefix]: Finished finitePrefix Result has 100 conditions, 91 events. 1/91 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. 0/89 useless extension candidates. Maximal degree in co-relation 29. Up to 2 conditions per place. [2022-09-20 20:27:29,751 INFO L82 GeneralOperation]: Start removeDead. Operand has 99 places, 93 transitions, 202 flow [2022-09-20 20:27:29,758 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 87 places, 80 transitions, 172 flow [2022-09-20 20:27:29,772 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-09-20 20:27:29,780 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;@3dc14411, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-09-20 20:27:29,780 INFO L358 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2022-09-20 20:27:29,811 INFO L130 PetriNetUnfolder]: 0/79 cut-off events. [2022-09-20 20:27:29,811 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-09-20 20:27:29,811 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-09-20 20:27:29,812 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-20 20:27:29,812 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-09-20 20:27:29,817 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-20 20:27:29,817 INFO L85 PathProgramCache]: Analyzing trace with hash -1748961797, now seen corresponding path program 1 times [2022-09-20 20:27:29,827 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-20 20:27:29,827 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1507894142] [2022-09-20 20:27:29,828 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-20 20:27:29,828 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-20 20:27:30,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-09-20 20:27:30,065 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-09-20 20:27:30,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-09-20 20:27:30,213 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-09-20 20:27:30,214 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-09-20 20:27:30,217 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 3 remaining) [2022-09-20 20:27:30,219 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 3 remaining) [2022-09-20 20:27:30,220 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 3 remaining) [2022-09-20 20:27:30,220 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-09-20 20:27:30,220 INFO L444 BasicCegarLoop]: Path program histogram: [1] [2022-09-20 20:27:30,226 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-09-20 20:27:30,227 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-09-20 20:27:30,304 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.09 08:27:30 BasicIcfg [2022-09-20 20:27:30,305 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-09-20 20:27:30,306 INFO L158 Benchmark]: Toolchain (without parser) took 1678.43ms. Allocated memory was 205.5MB in the beginning and 321.9MB in the end (delta: 116.4MB). Free memory was 174.4MB in the beginning and 222.5MB in the end (delta: -48.1MB). Peak memory consumption was 67.7MB. Max. memory is 8.0GB. [2022-09-20 20:27:30,306 INFO L158 Benchmark]: CDTParser took 0.15ms. Allocated memory is still 205.5MB. Free memory is still 161.1MB. There was no memory consumed. Max. memory is 8.0GB. [2022-09-20 20:27:30,307 INFO L158 Benchmark]: CACSL2BoogieTranslator took 380.58ms. Allocated memory was 205.5MB in the beginning and 321.9MB in the end (delta: 116.4MB). Free memory was 174.0MB in the beginning and 282.2MB in the end (delta: -108.2MB). Peak memory consumption was 9.4MB. Max. memory is 8.0GB. [2022-09-20 20:27:30,309 INFO L158 Benchmark]: Boogie Procedure Inliner took 57.54ms. Allocated memory is still 321.9MB. Free memory was 282.2MB in the beginning and 280.2MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-09-20 20:27:30,313 INFO L158 Benchmark]: Boogie Preprocessor took 21.36ms. Allocated memory is still 321.9MB. Free memory was 280.2MB in the beginning and 279.2MB in the end (delta: 1.0MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-09-20 20:27:30,315 INFO L158 Benchmark]: RCFGBuilder took 432.44ms. Allocated memory is still 321.9MB. Free memory was 278.6MB in the beginning and 265.5MB in the end (delta: 13.1MB). Peak memory consumption was 13.6MB. Max. memory is 8.0GB. [2022-09-20 20:27:30,316 INFO L158 Benchmark]: TraceAbstraction took 781.17ms. Allocated memory is still 321.9MB. Free memory was 265.0MB in the beginning and 222.5MB in the end (delta: 42.5MB). Peak memory consumption was 43.0MB. Max. memory is 8.0GB. [2022-09-20 20:27:30,321 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15ms. Allocated memory is still 205.5MB. Free memory is still 161.1MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 380.58ms. Allocated memory was 205.5MB in the beginning and 321.9MB in the end (delta: 116.4MB). Free memory was 174.0MB in the beginning and 282.2MB in the end (delta: -108.2MB). Peak memory consumption was 9.4MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 57.54ms. Allocated memory is still 321.9MB. Free memory was 282.2MB in the beginning and 280.2MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 21.36ms. Allocated memory is still 321.9MB. Free memory was 280.2MB in the beginning and 279.2MB in the end (delta: 1.0MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 432.44ms. Allocated memory is still 321.9MB. Free memory was 278.6MB in the beginning and 265.5MB in the end (delta: 13.1MB). Peak memory consumption was 13.6MB. Max. memory is 8.0GB. * TraceAbstraction took 781.17ms. Allocated memory is still 321.9MB. Free memory was 265.0MB in the beginning and 222.5MB in the end (delta: 42.5MB). Peak memory consumption was 43.0MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - 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; VAL [ma={3:0}, mb={4:0}] [L693] 0 int data1, data2; VAL [data1=0, data2=0, ma={3:0}, mb={4:0}] [L716] 0 pthread_t t1, t2; VAL [data1=0, data2=0, ma={3:0}, mb={4:0}, t1={6:0}, t2={5:0}] [L719] 0 data1 = 10 VAL [data1=10, data2=0, ma={3:0}, mb={4:0}, t1={6:0}, t2={5:0}] [L720] 0 data2 = 10 VAL [data1=10, data2=10, ma={3:0}, mb={4:0}, t1={6:0}, t2={5:0}] [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)=-1, 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)=0, 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; VAL [\result={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, data1=15, data2=4, ma={3:0}, mb={4:0}] [L723] 0 \read(t1) VAL [\read(t1)=-1, \result={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, data1=15, data2=4, ma={3:0}, mb={4:0}, t1={6:0}, t2={5:0}] [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++ VAL [\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}] [L702] 1 return 0; 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}] [L723] FCALL, JOIN 1 pthread_join(t1, 0) VAL [\read(t1)=-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] 0 \read(t2) VAL [\read(t2)=0, \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)=0, \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 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}] [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: 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. - 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. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 123 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: 0.5s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=172occurred 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, 80 NumberOfCodeBlocks, 80 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! [2022-09-20 20:27:30,364 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...