/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 BEFORE -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread/singleton.i -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-b8dbc81 [2023-01-27 23:41:16,751 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-01-27 23:41:16,753 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-01-27 23:41:16,782 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-01-27 23:41:16,782 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-01-27 23:41:16,784 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-01-27 23:41:16,786 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-01-27 23:41:16,788 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-01-27 23:41:16,789 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-01-27 23:41:16,792 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-01-27 23:41:16,793 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-01-27 23:41:16,795 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-01-27 23:41:16,795 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-01-27 23:41:16,797 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-01-27 23:41:16,797 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-01-27 23:41:16,798 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-01-27 23:41:16,799 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-01-27 23:41:16,799 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-01-27 23:41:16,801 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-01-27 23:41:16,805 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-01-27 23:41:16,805 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-01-27 23:41:16,806 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-01-27 23:41:16,807 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-01-27 23:41:16,807 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-01-27 23:41:16,813 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2023-01-27 23:41:16,818 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-01-27 23:41:16,819 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-01-27 23:41:16,819 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-01-27 23:41:16,820 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 [2023-01-27 23:41:16,842 INFO L113 SettingsManager]: Loading preferences was successful [2023-01-27 23:41:16,842 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-01-27 23:41:16,843 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-01-27 23:41:16,843 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-01-27 23:41:16,843 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-01-27 23:41:16,844 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-01-27 23:41:16,844 INFO L138 SettingsManager]: * Use SBE=true [2023-01-27 23:41:16,844 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-01-27 23:41:16,844 INFO L138 SettingsManager]: * sizeof long=4 [2023-01-27 23:41:16,844 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-01-27 23:41:16,844 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-01-27 23:41:16,845 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-01-27 23:41:16,845 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-01-27 23:41:16,845 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-01-27 23:41:16,845 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-01-27 23:41:16,845 INFO L138 SettingsManager]: * sizeof long double=12 [2023-01-27 23:41:16,845 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-01-27 23:41:16,845 INFO L138 SettingsManager]: * Use constant arrays=true [2023-01-27 23:41:16,845 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-01-27 23:41:16,845 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-01-27 23:41:16,845 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-01-27 23:41:16,845 INFO L138 SettingsManager]: * To the following directory=./dump/ [2023-01-27 23:41:16,845 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-01-27 23:41:16,845 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-01-27 23:41:16,846 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-01-27 23:41:16,846 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-01-27 23:41:16,846 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-01-27 23:41:16,846 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-01-27 23:41:16,846 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-01-27 23:41:16,846 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-01-27 23:41:16,846 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-01-27 23:41:16,846 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: When to check the insufficient erros location relative to the other error locations -> BEFORE [2023-01-27 23:41:17,003 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-01-27 23:41:17,015 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-01-27 23:41:17,016 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-01-27 23:41:17,017 INFO L271 PluginConnector]: Initializing CDTParser... [2023-01-27 23:41:17,017 INFO L275 PluginConnector]: CDTParser initialized [2023-01-27 23:41:17,018 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread/singleton.i [2023-01-27 23:41:17,904 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-01-27 23:41:18,093 INFO L351 CDTParser]: Found 1 translation units. [2023-01-27 23:41:18,093 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread/singleton.i [2023-01-27 23:41:18,105 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/49c78c5f0/84c6cb0bb4394725b78d00cb71f8102e/FLAGbe712a0f9 [2023-01-27 23:41:18,116 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/49c78c5f0/84c6cb0bb4394725b78d00cb71f8102e [2023-01-27 23:41:18,117 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-01-27 23:41:18,119 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2023-01-27 23:41:18,120 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-01-27 23:41:18,121 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-01-27 23:41:18,122 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-01-27 23:41:18,123 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.01 11:41:18" (1/1) ... [2023-01-27 23:41:18,123 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5c604ebc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 11:41:18, skipping insertion in model container [2023-01-27 23:41:18,123 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.01 11:41:18" (1/1) ... [2023-01-27 23:41:18,128 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-01-27 23:41:18,178 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-01-27 23:41:18,324 WARN L633 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-01-27 23:41:18,445 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/singleton.i[55547,55560] [2023-01-27 23:41:18,460 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-01-27 23:41:18,466 INFO L203 MainTranslator]: Completed pre-run [2023-01-27 23:41:18,477 WARN L633 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-01-27 23:41:18,510 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/singleton.i[55547,55560] [2023-01-27 23:41:18,516 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-01-27 23:41:18,594 WARN L667 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-01-27 23:41:18,594 WARN L667 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-01-27 23:41:18,594 WARN L667 CHandler]: The function __builtin_bswap16 is called, but not defined or handled by StandardFunctionHandler. [2023-01-27 23:41:18,599 INFO L208 MainTranslator]: Completed translation [2023-01-27 23:41:18,599 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 11:41:18 WrapperNode [2023-01-27 23:41:18,599 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-01-27 23:41:18,600 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-01-27 23:41:18,600 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-01-27 23:41:18,600 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-01-27 23:41:18,605 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 11:41:18" (1/1) ... [2023-01-27 23:41:18,615 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 11:41:18" (1/1) ... [2023-01-27 23:41:18,628 INFO L138 Inliner]: procedures = 325, calls = 52, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 35 [2023-01-27 23:41:18,628 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-01-27 23:41:18,628 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-01-27 23:41:18,628 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-01-27 23:41:18,628 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-01-27 23:41:18,633 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 11:41:18" (1/1) ... [2023-01-27 23:41:18,634 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 11:41:18" (1/1) ... [2023-01-27 23:41:18,636 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 11:41:18" (1/1) ... [2023-01-27 23:41:18,636 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 11:41:18" (1/1) ... [2023-01-27 23:41:18,640 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 11:41:18" (1/1) ... [2023-01-27 23:41:18,641 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 11:41:18" (1/1) ... [2023-01-27 23:41:18,642 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 11:41:18" (1/1) ... [2023-01-27 23:41:18,643 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 11:41:18" (1/1) ... [2023-01-27 23:41:18,645 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-01-27 23:41:18,645 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-01-27 23:41:18,645 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-01-27 23:41:18,646 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-01-27 23:41:18,646 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 11:41:18" (1/1) ... [2023-01-27 23:41:18,649 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-01-27 23:41:18,658 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-01-27 23:41:18,667 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) [2023-01-27 23:41:18,669 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 [2023-01-27 23:41:18,703 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-01-27 23:41:18,703 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-01-27 23:41:18,703 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-01-27 23:41:18,703 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-01-27 23:41:18,703 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-01-27 23:41:18,703 INFO L130 BoogieDeclarations]: Found specification of procedure thread0 [2023-01-27 23:41:18,703 INFO L138 BoogieDeclarations]: Found implementation of procedure thread0 [2023-01-27 23:41:18,703 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2023-01-27 23:41:18,703 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2023-01-27 23:41:18,703 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2023-01-27 23:41:18,704 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2023-01-27 23:41:18,704 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2023-01-27 23:41:18,704 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2023-01-27 23:41:18,704 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-01-27 23:41:18,704 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-01-27 23:41:18,704 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-01-27 23:41:18,704 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-01-27 23:41:18,704 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-01-27 23:41:18,704 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-01-27 23:41:18,705 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-01-27 23:41:18,805 INFO L236 CfgBuilder]: Building ICFG [2023-01-27 23:41:18,807 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-01-27 23:41:18,958 INFO L277 CfgBuilder]: Performing block encoding [2023-01-27 23:41:18,964 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-01-27 23:41:18,964 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-01-27 23:41:18,966 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.01 11:41:18 BoogieIcfgContainer [2023-01-27 23:41:18,966 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-01-27 23:41:18,967 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-01-27 23:41:18,967 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-01-27 23:41:18,969 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-01-27 23:41:18,969 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.01 11:41:18" (1/3) ... [2023-01-27 23:41:18,970 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@985faf6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.01 11:41:18, skipping insertion in model container [2023-01-27 23:41:18,970 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 11:41:18" (2/3) ... [2023-01-27 23:41:18,970 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@985faf6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.01 11:41:18, skipping insertion in model container [2023-01-27 23:41:18,970 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.01 11:41:18" (3/3) ... [2023-01-27 23:41:18,971 INFO L112 eAbstractionObserver]: Analyzing ICFG singleton.i [2023-01-27 23:41:18,982 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-01-27 23:41:18,982 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-01-27 23:41:18,982 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-01-27 23:41:19,147 INFO L144 ThreadInstanceAdder]: Constructed 21 joinOtherThreadTransitions. [2023-01-27 23:41:19,172 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 198 places, 188 transitions, 483 flow [2023-01-27 23:41:19,216 INFO L130 PetriNetUnfolder]: 6/125 cut-off events. [2023-01-27 23:41:19,216 INFO L131 PetriNetUnfolder]: For 6/6 co-relation queries the response was YES. [2023-01-27 23:41:19,219 INFO L83 FinitePrefix]: Finished finitePrefix Result has 155 conditions, 125 events. 6/125 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 51 event pairs, 0 based on Foata normal form. 0/118 useless extension candidates. Maximal degree in co-relation 113. Up to 3 conditions per place. [2023-01-27 23:41:19,219 INFO L82 GeneralOperation]: Start removeDead. Operand has 198 places, 188 transitions, 483 flow [2023-01-27 23:41:19,222 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 130 places, 116 transitions, 283 flow [2023-01-27 23:41:19,225 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-01-27 23:41:19,231 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 130 places, 116 transitions, 283 flow [2023-01-27 23:41:19,232 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 130 places, 116 transitions, 283 flow [2023-01-27 23:41:19,233 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 130 places, 116 transitions, 283 flow [2023-01-27 23:41:19,257 INFO L130 PetriNetUnfolder]: 5/116 cut-off events. [2023-01-27 23:41:19,258 INFO L131 PetriNetUnfolder]: For 6/6 co-relation queries the response was YES. [2023-01-27 23:41:19,258 INFO L83 FinitePrefix]: Finished finitePrefix Result has 146 conditions, 116 events. 5/116 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 44 event pairs, 0 based on Foata normal form. 0/111 useless extension candidates. Maximal degree in co-relation 113. Up to 3 conditions per place. [2023-01-27 23:41:19,259 INFO L119 LiptonReduction]: Number of co-enabled transitions 1344 [2023-01-27 23:41:21,348 INFO L134 LiptonReduction]: Checked pairs total: 2911 [2023-01-27 23:41:21,348 INFO L136 LiptonReduction]: Total number of compositions: 75 [2023-01-27 23:41:21,365 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-01-27 23:41:21,371 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;@1ab15a5, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-01-27 23:41:21,371 INFO L358 AbstractCegarLoop]: Starting to check reachability of 12 error locations. [2023-01-27 23:41:21,392 INFO L130 PetriNetUnfolder]: 5/40 cut-off events. [2023-01-27 23:41:21,392 INFO L131 PetriNetUnfolder]: For 6/6 co-relation queries the response was YES. [2023-01-27 23:41:21,393 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-27 23:41:21,393 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] [2023-01-27 23:41:21,393 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [thread0Err3INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread0Err4INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread0Err5INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 9 more)] === [2023-01-27 23:41:21,396 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-27 23:41:21,396 INFO L85 PathProgramCache]: Analyzing trace with hash -1028847263, now seen corresponding path program 1 times [2023-01-27 23:41:21,405 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-27 23:41:21,405 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1576261411] [2023-01-27 23:41:21,405 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-27 23:41:21,406 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-27 23:41:21,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-01-27 23:41:21,622 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-01-27 23:41:21,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-01-27 23:41:21,692 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-01-27 23:41:21,693 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-01-27 23:41:21,694 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (11 of 12 remaining) [2023-01-27 23:41:21,695 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread0Err3INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (10 of 12 remaining) [2023-01-27 23:41:21,696 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread0Err4INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (9 of 12 remaining) [2023-01-27 23:41:21,696 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread0Err5INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (8 of 12 remaining) [2023-01-27 23:41:21,696 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread0Err6INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (7 of 12 remaining) [2023-01-27 23:41:21,696 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread0Err9INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (6 of 12 remaining) [2023-01-27 23:41:21,696 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (5 of 12 remaining) [2023-01-27 23:41:21,696 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread0Thread1of1ForFork4Err1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (4 of 12 remaining) [2023-01-27 23:41:21,696 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread0Thread1of1ForFork4Err2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (3 of 12 remaining) [2023-01-27 23:41:21,697 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread0Thread1of1ForFork4Err7INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 12 remaining) [2023-01-27 23:41:21,697 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread0Thread1of1ForFork4Err8INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 12 remaining) [2023-01-27 23:41:21,697 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread0Thread1of1ForFork4Err10INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 12 remaining) [2023-01-27 23:41:21,697 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-01-27 23:41:21,697 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-01-27 23:41:21,701 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-01-27 23:41:21,701 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-01-27 23:41:21,757 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.01 11:41:21 BasicIcfg [2023-01-27 23:41:21,757 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-01-27 23:41:21,758 INFO L158 Benchmark]: Toolchain (without parser) took 3639.14ms. Allocated memory was 356.5MB in the beginning and 559.9MB in the end (delta: 203.4MB). Free memory was 292.3MB in the beginning and 227.1MB in the end (delta: 65.2MB). Peak memory consumption was 271.1MB. Max. memory is 16.0GB. [2023-01-27 23:41:21,758 INFO L158 Benchmark]: CDTParser took 0.09ms. Allocated memory is still 356.5MB. Free memory is still 304.9MB. There was no memory consumed. Max. memory is 16.0GB. [2023-01-27 23:41:21,758 INFO L158 Benchmark]: CACSL2BoogieTranslator took 479.08ms. Allocated memory was 356.5MB in the beginning and 559.9MB in the end (delta: 203.4MB). Free memory was 292.0MB in the beginning and 512.3MB in the end (delta: -220.3MB). Peak memory consumption was 29.9MB. Max. memory is 16.0GB. [2023-01-27 23:41:21,759 INFO L158 Benchmark]: Boogie Procedure Inliner took 27.88ms. Allocated memory is still 559.9MB. Free memory was 512.3MB in the beginning and 510.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-01-27 23:41:21,759 INFO L158 Benchmark]: Boogie Preprocessor took 16.61ms. Allocated memory is still 559.9MB. Free memory was 510.2MB in the beginning and 509.2MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.0GB. [2023-01-27 23:41:21,759 INFO L158 Benchmark]: RCFGBuilder took 320.59ms. Allocated memory is still 559.9MB. Free memory was 509.2MB in the beginning and 490.3MB in the end (delta: 18.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.0GB. [2023-01-27 23:41:21,760 INFO L158 Benchmark]: TraceAbstraction took 2789.88ms. Allocated memory is still 559.9MB. Free memory was 490.3MB in the beginning and 227.1MB in the end (delta: 263.2MB). Peak memory consumption was 264.2MB. Max. memory is 16.0GB. [2023-01-27 23:41:21,770 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 356.5MB. Free memory is still 304.9MB. There was no memory consumed. Max. memory is 16.0GB. * CACSL2BoogieTranslator took 479.08ms. Allocated memory was 356.5MB in the beginning and 559.9MB in the end (delta: 203.4MB). Free memory was 292.0MB in the beginning and 512.3MB in the end (delta: -220.3MB). Peak memory consumption was 29.9MB. Max. memory is 16.0GB. * Boogie Procedure Inliner took 27.88ms. Allocated memory is still 559.9MB. Free memory was 512.3MB in the beginning and 510.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * Boogie Preprocessor took 16.61ms. Allocated memory is still 559.9MB. Free memory was 510.2MB in the beginning and 509.2MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.0GB. * RCFGBuilder took 320.59ms. Allocated memory is still 559.9MB. Free memory was 509.2MB in the beginning and 490.3MB in the end (delta: 18.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.0GB. * TraceAbstraction took 2789.88ms. Allocated memory is still 559.9MB. Free memory was 490.3MB in the beginning and 227.1MB in the end (delta: 263.2MB). Peak memory consumption was 264.2MB. Max. memory is 16.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 2.1s, 130 PlacesBefore, 55 PlacesAfterwards, 116 TransitionsBefore, 41 TransitionsAfterwards, 1344 CoEnabledTransitionPairs, 5 FixpointIterations, 19 TrivialSequentialCompositions, 56 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 75 TotalNumberOfCompositions, 2911 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 2101, independent: 1992, independent conditional: 0, independent unconditional: 1992, dependent: 109, dependent conditional: 0, dependent unconditional: 109, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 711, independent: 674, independent conditional: 0, independent unconditional: 674, dependent: 37, dependent conditional: 0, dependent unconditional: 37, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 2101, independent: 1318, independent conditional: 0, independent unconditional: 1318, dependent: 72, dependent conditional: 0, dependent unconditional: 72, unknown: 711, unknown conditional: 0, unknown unconditional: 711] , Statistics on independence cache: Total cache size (in pairs): 58, Positive cache size: 46, Positive conditional cache size: 0, Positive unconditional cache size: 46, Negative cache size: 12, Negative conditional cache size: 0, Negative unconditional cache size: 12, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - CounterExampleResult [Line: 1123]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L1124] 0 char *v; [L1161] 0 pthread_t t; [L1162] FCALL, FORK 0 pthread_create(&t, 0, thread0, 0) VAL [arg={0:0}, pthread_create(&t, 0, thread0, 0)=-6, t={6:0}, v={0:0}] [L1146] 1 pthread_t t1, t2, t3, t4, t5; [L1147] FCALL, FORK 1 pthread_create(&t1, 0, thread1, 0) VAL [arg={0:0}, arg={0:0}, arg={0:0}, pthread_create(&t1, 0, thread1, 0)=-5, t1={5:0}, t2={8:0}, t3={7:0}, t4={10:0}, t5={9:0}, v={0:0}] [L1148] 1 \read(t1) VAL [\read(t1)=-5, arg={0:0}, arg={0:0}, arg={0:0}, t1={5:0}, t2={8:0}, t3={7:0}, t4={10:0}, t5={9:0}, v={0:0}] [L1127] 2 v = malloc(sizeof(char)) [L1128] 2 return 0; [L1148] FCALL, JOIN 2 pthread_join(t1, 0) VAL [\read(t1)=-5, \result={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, t1={5:0}, t2={8:0}, t3={7:0}, t4={10:0}, t5={9:0}, v={3:0}] [L1149] FCALL, FORK 1 pthread_create(&t2, 0, thread2, 0) VAL [\result={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, pthread_create(&t2, 0, thread2, 0)=-4, t1={5:0}, t2={8:0}, t3={7:0}, t4={10:0}, t5={9:0}, v={3:0}] [L1150] FCALL, FORK 1 pthread_create(&t3, 0, thread3, 0) VAL [\result={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, pthread_create(&t3, 0, thread3, 0)=-3, t1={5:0}, t2={8:0}, t3={7:0}, t4={10:0}, t5={9:0}, v={3:0}] [L1151] FCALL, FORK 1 pthread_create(&t4, 0, thread2, 0) VAL [\result={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, pthread_create(&t4, 0, thread2, 0)=-2, t1={5:0}, t2={8:0}, t3={7:0}, t4={10:0}, t5={9:0}, v={3:0}] [L1152] FCALL, FORK 1 pthread_create(&t5, 0, thread2, 0) VAL [\result={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, pthread_create(&t5, 0, thread2, 0)=-1, t1={5:0}, t2={8:0}, t3={7:0}, t4={10:0}, t5={9:0}, v={3:0}] [L1133] 6 v[0] = 'X' [L1135] 6 return 0; [L1133] 5 v[0] = 'X' [L1135] 5 return 0; [L1153] 1 \read(t2) VAL [\read(t2)=-4, \result={0:0}, \result={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, t1={5:0}, t2={8:0}, t3={7:0}, t4={10:0}, t5={9:0}, v={3:0}] [L1133] 3 v[0] = 'X' [L1135] 3 return 0; [L1153] FCALL, JOIN 3 pthread_join(t2, 0) VAL [\read(t2)=-4, \result={0:0}, \result={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, t1={5:0}, t2={8:0}, t3={7:0}, t4={10:0}, t5={9:0}, v={3:0}] [L1154] 1 \read(t3) VAL [\read(t3)=-3, \result={0:0}, \result={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, t1={5:0}, t2={8:0}, t3={7:0}, t4={10:0}, t5={9:0}, v={3:0}] [L1140] 4 v[0] = 'Y' [L1142] 4 return 0; [L1154] FCALL, JOIN 4 pthread_join(t3, 0) VAL [\read(t3)=-3, \result={0:0}, \result={0:0}, \result={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, t1={5:0}, t2={8:0}, t3={7:0}, t4={10:0}, t5={9:0}, v={3:0}] [L1155] 1 \read(t4) VAL [\read(t4)=-2, \result={0:0}, \result={0:0}, \result={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, t1={5:0}, t2={8:0}, t3={7:0}, t4={10:0}, t5={9:0}, v={3:0}] [L1155] FCALL, JOIN 5 pthread_join(t4, 0) VAL [\read(t4)=-2, \result={0:0}, \result={0:0}, \result={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, t1={5:0}, t2={8:0}, t3={7:0}, t4={10:0}, t5={9:0}, v={3:0}] [L1156] 1 \read(t5) VAL [\read(t5)=-1, \result={0:0}, \result={0:0}, \result={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, t1={5:0}, t2={8:0}, t3={7:0}, t4={10:0}, t5={9:0}, v={3:0}] [L1156] FCALL, JOIN 6 pthread_join(t5, 0) VAL [\read(t5)=-1, \result={0:0}, \result={0:0}, \result={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, t1={5:0}, t2={8:0}, t3={7:0}, t4={10:0}, t5={9:0}, v={3:0}] [L1157] 1 return 0; [L1157] 1 return 0; [L1157] 1 return 0; [L1157] 1 return 0; [L1157] 1 return 0; [L1157] 1 return 0; [L1163] 0 \read(t) VAL [\read(t)=-6, \result={0:0}, \result={0:0}, \result={0:0}, \result={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, t={6:0}, v={3:0}] [L1163] FCALL, JOIN 1 pthread_join(t, 0) VAL [\read(t)=-6, \result={0:0}, \result={0:0}, \result={0:0}, \result={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, t={6:0}, v={3:0}] [L1164] EXPR 0 v[0] [L1164] CALL 0 __VERIFIER_assert(v[0] == 'X') [L1123] COND TRUE 0 !expression [L1123] 0 reach_error() VAL [\old(expression)=0, \result={0:0}, \result={0:0}, \result={0:0}, \result={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, expression=0, v={3:0}] - UnprovableResult [Line: 1149]: 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: 1147]: 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: 1151]: 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: 1150]: 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: 1152]: 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: 1162]: 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: 1150]: 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: 1147]: 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: 1151]: 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: 1149]: 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: 1152]: 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 11 procedures, 218 locations, 12 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: 2.5s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 2.2s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=133occurred 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, 36 NumberOfCodeBlocks, 36 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! [2023-01-27 23:41:21,789 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...