/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-MCRwithDepranks-Lazy.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/concurrent/pthreads/regression/atomic/05-end-no-begin.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.mcr-reduction-820ea7a [2022-02-20 03:05:18,657 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-02-20 03:05:18,658 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-02-20 03:05:18,701 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-02-20 03:05:18,701 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-02-20 03:05:18,702 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-02-20 03:05:18,715 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-02-20 03:05:18,716 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-02-20 03:05:18,719 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-02-20 03:05:18,721 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-02-20 03:05:18,721 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-02-20 03:05:18,722 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-02-20 03:05:18,722 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-02-20 03:05:18,723 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-02-20 03:05:18,723 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-02-20 03:05:18,724 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-02-20 03:05:18,724 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-02-20 03:05:18,725 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-02-20 03:05:18,726 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-02-20 03:05:18,727 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-02-20 03:05:18,728 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-02-20 03:05:18,736 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-02-20 03:05:18,736 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-02-20 03:05:18,737 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-02-20 03:05:18,738 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-02-20 03:05:18,740 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-02-20 03:05:18,741 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-02-20 03:05:18,741 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-02-20 03:05:18,741 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-02-20 03:05:18,742 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-02-20 03:05:18,742 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-02-20 03:05:18,743 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-02-20 03:05:18,743 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-02-20 03:05:18,743 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-02-20 03:05:18,743 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-02-20 03:05:18,744 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-02-20 03:05:18,749 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-MCRwithDepranks-Lazy.epf [2022-02-20 03:05:18,777 INFO L113 SettingsManager]: Loading preferences was successful [2022-02-20 03:05:18,777 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-02-20 03:05:18,777 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-02-20 03:05:18,777 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-02-20 03:05:18,778 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-02-20 03:05:18,778 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-02-20 03:05:18,778 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-02-20 03:05:18,778 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-02-20 03:05:18,778 INFO L138 SettingsManager]: * Use SBE=true [2022-02-20 03:05:18,779 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-02-20 03:05:18,779 INFO L138 SettingsManager]: * sizeof long=4 [2022-02-20 03:05:18,779 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-02-20 03:05:18,779 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-02-20 03:05:18,779 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-02-20 03:05:18,780 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-02-20 03:05:18,780 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-02-20 03:05:18,780 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-02-20 03:05:18,780 INFO L138 SettingsManager]: * sizeof long double=12 [2022-02-20 03:05:18,780 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-02-20 03:05:18,780 INFO L138 SettingsManager]: * Use constant arrays=true [2022-02-20 03:05:18,780 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-02-20 03:05:18,780 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-02-20 03:05:18,780 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-02-20 03:05:18,780 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-02-20 03:05:18,780 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-02-20 03:05:18,780 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-20 03:05:18,781 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-02-20 03:05:18,781 INFO L138 SettingsManager]: * Construct finite automaton lazily=true [2022-02-20 03:05:18,781 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-02-20 03:05:18,781 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-02-20 03:05:18,781 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-02-20 03:05:18,781 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-02-20 03:05:18,781 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-02-20 03:05:18,781 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2022-02-20 03:05:18,781 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-02-20 03:05:18,782 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=MCR_WITH_DEPRANKS [2022-02-20 03:05:18,782 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-02-20 03:05:18,958 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-02-20 03:05:18,985 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-02-20 03:05:18,987 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-02-20 03:05:18,987 INFO L271 PluginConnector]: Initializing CDTParser... [2022-02-20 03:05:18,988 INFO L275 PluginConnector]: CDTParser initialized [2022-02-20 03:05:18,989 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/pthreads/regression/atomic/05-end-no-begin.c [2022-02-20 03:05:19,032 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/916af066e/a86d8e06a3c44fc1a8153628ce010976/FLAG08d1f12bd [2022-02-20 03:05:19,342 INFO L306 CDTParser]: Found 1 translation units. [2022-02-20 03:05:19,343 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/concurrent/pthreads/regression/atomic/05-end-no-begin.c [2022-02-20 03:05:19,343 WARN L117 ultiparseSymbolTable]: System include pthread.h could not be resolved by CDT -- only built-in system includes are available. [2022-02-20 03:05:19,362 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/916af066e/a86d8e06a3c44fc1a8153628ce010976/FLAG08d1f12bd [2022-02-20 03:05:19,776 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/916af066e/a86d8e06a3c44fc1a8153628ce010976 [2022-02-20 03:05:19,778 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-02-20 03:05:19,779 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-02-20 03:05:19,779 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-02-20 03:05:19,780 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-02-20 03:05:19,781 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-02-20 03:05:19,782 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.02 03:05:19" (1/1) ... [2022-02-20 03:05:19,783 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4fc7234d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 03:05:19, skipping insertion in model container [2022-02-20 03:05:19,783 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.02 03:05:19" (1/1) ... [2022-02-20 03:05:19,787 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-02-20 03:05:19,795 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-02-20 03:05:19,919 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-20 03:05:19,924 INFO L203 MainTranslator]: Completed pre-run [2022-02-20 03:05:19,931 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-20 03:05:19,939 INFO L208 MainTranslator]: Completed translation [2022-02-20 03:05:19,939 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 03:05:19 WrapperNode [2022-02-20 03:05:19,939 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-02-20 03:05:19,940 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-02-20 03:05:19,940 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-02-20 03:05:19,940 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-02-20 03:05:19,945 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 03:05:19" (1/1) ... [2022-02-20 03:05:19,949 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 03:05:19" (1/1) ... [2022-02-20 03:05:19,960 INFO L137 Inliner]: procedures = 10, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 19 [2022-02-20 03:05:19,960 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-02-20 03:05:19,962 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-02-20 03:05:19,962 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-02-20 03:05:19,962 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-02-20 03:05:19,967 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 03:05:19" (1/1) ... [2022-02-20 03:05:19,967 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 03:05:19" (1/1) ... [2022-02-20 03:05:19,968 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 03:05:19" (1/1) ... [2022-02-20 03:05:19,969 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 03:05:19" (1/1) ... [2022-02-20 03:05:19,973 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 03:05:19" (1/1) ... [2022-02-20 03:05:19,973 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 03:05:19" (1/1) ... [2022-02-20 03:05:19,974 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 03:05:19" (1/1) ... [2022-02-20 03:05:19,978 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-02-20 03:05:19,979 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-02-20 03:05:19,979 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-02-20 03:05:19,980 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-02-20 03:05:19,980 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 03:05:19" (1/1) ... [2022-02-20 03:05:19,987 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-20 03:05:19,994 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-20 03:05:20,008 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) [2022-02-20 03:05:20,027 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 [2022-02-20 03:05:20,038 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-02-20 03:05:20,038 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-02-20 03:05:20,038 INFO L130 BoogieDeclarations]: Found specification of procedure foo [2022-02-20 03:05:20,039 INFO L138 BoogieDeclarations]: Found implementation of procedure foo [2022-02-20 03:05:20,039 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-02-20 03:05:20,039 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-02-20 03:05:20,039 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-02-20 03:05:20,039 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-02-20 03:05:20,040 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-02-20 03:05:20,092 INFO L234 CfgBuilder]: Building ICFG [2022-02-20 03:05:20,093 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-02-20 03:05:20,157 INFO L275 CfgBuilder]: Performing block encoding [2022-02-20 03:05:20,160 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-02-20 03:05:20,161 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-02-20 03:05:20,162 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.02 03:05:20 BoogieIcfgContainer [2022-02-20 03:05:20,162 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-02-20 03:05:20,163 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-02-20 03:05:20,163 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-02-20 03:05:20,166 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-02-20 03:05:20,166 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.02 03:05:19" (1/3) ... [2022-02-20 03:05:20,167 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@648ef0b0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.02 03:05:20, skipping insertion in model container [2022-02-20 03:05:20,167 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 03:05:19" (2/3) ... [2022-02-20 03:05:20,168 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@648ef0b0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.02 03:05:20, skipping insertion in model container [2022-02-20 03:05:20,179 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.02 03:05:20" (3/3) ... [2022-02-20 03:05:20,180 INFO L111 eAbstractionObserver]: Analyzing ICFG 05-end-no-begin.c [2022-02-20 03:05:20,184 WARN L150 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-02-20 03:05:20,184 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-02-20 03:05:20,184 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-02-20 03:05:20,184 INFO L534 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-02-20 03:05:20,205 WARN L322 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-20 03:05:20,206 WARN L322 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-20 03:05:20,206 WARN L322 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-20 03:05:20,210 WARN L322 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-20 03:05:20,211 WARN L322 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-20 03:05:20,211 WARN L322 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-20 03:05:20,211 WARN L322 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-20 03:05:20,216 WARN L322 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-20 03:05:20,217 WARN L322 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-20 03:05:20,217 WARN L322 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-20 03:05:20,218 WARN L322 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-20 03:05:20,218 WARN L322 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-20 03:05:20,221 WARN L322 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-20 03:05:20,221 WARN L322 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-20 03:05:20,222 WARN L322 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-20 03:05:20,222 WARN L322 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-20 03:05:20,224 INFO L148 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-02-20 03:05:20,279 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2022-02-20 03:05:20,279 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-20 03:05:20,281 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2022-02-20 03:05:20,284 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Waiting until timeout for monitored process [2022-02-20 03:05:20,319 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-02-20 03:05:20,333 INFO L339 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=true, mAutomataTypeConcurrency=PARTIAL_ORDER_FA, mLazyFiniteAutomaton=true, 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, mLoopAccelerationTechnique=FAST_UPR, mMcrOptimizeForkJoin=true, mMcrOverapproximateWrwc=true [2022-02-20 03:05:20,333 INFO L340 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-02-20 03:05:20,393 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 24 transitions and produced 25 states. [2022-02-20 03:05:20,396 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION] === [2022-02-20 03:05:20,404 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-20 03:05:20,404 INFO L85 PathProgramCache]: Analyzing trace with hash -2094865671, now seen corresponding path program 1 times [2022-02-20 03:05:20,413 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-20 03:05:20,413 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1227488933] [2022-02-20 03:05:20,413 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-20 03:05:20,414 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-20 03:05:20,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-20 03:05:20,608 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-20 03:05:20,609 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-20 03:05:20,609 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1227488933] [2022-02-20 03:05:20,610 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1227488933] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-20 03:05:20,610 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-20 03:05:20,610 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-02-20 03:05:20,611 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1224416488] [2022-02-20 03:05:20,612 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-20 03:05:20,616 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-02-20 03:05:20,616 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-20 03:05:20,642 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-02-20 03:05:20,644 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-02-20 03:05:20,645 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-20 03:05:20,646 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-20 03:05:20,647 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 6.333333333333333) internal successors, (19), 4 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-20 03:05:20,648 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-20 03:05:20,691 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 37 transitions and produced 34 states. [2022-02-20 03:05:20,691 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-02-20 03:05:20,691 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-02-20 03:05:20,692 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION] === [2022-02-20 03:05:20,694 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-20 03:05:20,694 INFO L85 PathProgramCache]: Analyzing trace with hash 1174145594, now seen corresponding path program 1 times [2022-02-20 03:05:20,694 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-20 03:05:20,695 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1566597009] [2022-02-20 03:05:20,695 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-20 03:05:20,695 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-20 03:05:20,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-20 03:05:20,719 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-20 03:05:20,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-20 03:05:20,756 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-20 03:05:20,757 INFO L628 BasicCegarLoop]: Counterexample is feasible [2022-02-20 03:05:20,759 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONASSERT (1 of 2 remaining) [2022-02-20 03:05:20,761 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATION (0 of 2 remaining) [2022-02-20 03:05:20,761 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-02-20 03:05:20,767 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1] [2022-02-20 03:05:20,771 INFO L230 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-02-20 03:05:20,771 INFO L180 ceAbstractionStarter]: Computing trace abstraction results [2022-02-20 03:05:20,793 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.02 03:05:20 BasicIcfg [2022-02-20 03:05:20,793 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-02-20 03:05:20,794 INFO L158 Benchmark]: Toolchain (without parser) took 1015.23ms. Allocated memory was 185.6MB in the beginning and 226.5MB in the end (delta: 40.9MB). Free memory was 128.2MB in the beginning and 157.2MB in the end (delta: -29.0MB). Peak memory consumption was 11.6MB. Max. memory is 8.0GB. [2022-02-20 03:05:20,795 INFO L158 Benchmark]: CDTParser took 0.09ms. Allocated memory is still 185.6MB. Free memory is still 145.9MB. There was no memory consumed. Max. memory is 8.0GB. [2022-02-20 03:05:20,795 INFO L158 Benchmark]: CACSL2BoogieTranslator took 159.90ms. Allocated memory was 185.6MB in the beginning and 226.5MB in the end (delta: 40.9MB). Free memory was 128.0MB in the beginning and 198.1MB in the end (delta: -70.1MB). Peak memory consumption was 7.4MB. Max. memory is 8.0GB. [2022-02-20 03:05:20,796 INFO L158 Benchmark]: Boogie Procedure Inliner took 20.29ms. Allocated memory is still 226.5MB. Free memory was 198.1MB in the beginning and 196.5MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-02-20 03:05:20,797 INFO L158 Benchmark]: Boogie Preprocessor took 16.62ms. Allocated memory is still 226.5MB. Free memory was 196.5MB in the beginning and 196.0MB in the end (delta: 524.3kB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-02-20 03:05:20,798 INFO L158 Benchmark]: RCFGBuilder took 182.70ms. Allocated memory is still 226.5MB. Free memory was 196.0MB in the beginning and 186.0MB in the end (delta: 10.0MB). Peak memory consumption was 9.4MB. Max. memory is 8.0GB. [2022-02-20 03:05:20,799 INFO L158 Benchmark]: TraceAbstraction took 630.43ms. Allocated memory is still 226.5MB. Free memory was 185.5MB in the beginning and 157.2MB in the end (delta: 28.3MB). Peak memory consumption was 28.3MB. Max. memory is 8.0GB. [2022-02-20 03:05:20,804 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 185.6MB. Free memory is still 145.9MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 159.90ms. Allocated memory was 185.6MB in the beginning and 226.5MB in the end (delta: 40.9MB). Free memory was 128.0MB in the beginning and 198.1MB in the end (delta: -70.1MB). Peak memory consumption was 7.4MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 20.29ms. Allocated memory is still 226.5MB. Free memory was 198.1MB in the beginning and 196.5MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 16.62ms. Allocated memory is still 226.5MB. Free memory was 196.5MB in the beginning and 196.0MB in the end (delta: 524.3kB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 182.70ms. Allocated memory is still 226.5MB. Free memory was 196.0MB in the beginning and 186.0MB in the end (delta: 10.0MB). Peak memory consumption was 9.4MB. Max. memory is 8.0GB. * TraceAbstraction took 630.43ms. Allocated memory is still 226.5MB. Free memory was 185.5MB in the beginning and 157.2MB in the end (delta: 28.3MB). Peak memory consumption was 28.3MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Independence relation benchmarks ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 0, Positive cache size: 0, Positive conditional cache size: 0, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Eliminated conditions: 0, Maximal queried relation: -1, Independence queries for same thread: 0 - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - CounterExampleResult [Line: 30]: assertion can be violated assertion can be violated We found a FailurePath: [L15] 0 int x = 0; VAL [x=0] [L23] 0 pthread_t threadId; VAL [threadId={2:0}, x=0] [L24] FCALL, FORK 0 pthread_create(&threadId, NULL, &foo, NULL) VAL [arg={0:0}, pthread_create(&threadId, NULL, &foo, NULL)=-1, threadId={2:0}, x=0] [L26] 0 x = 1 VAL [arg={0:0}, threadId={2:0}, x=1] [L18] 1 x = 2 VAL [arg={0:0}, arg={0:0}, x=2] [L27] 0 x = x + 1 VAL [arg={0:0}, arg={0:0}, threadId={2:0}, x=3] [L30] 0 CodeAnnotStmt[Assertion] VAL [arg={0:0}, arg={0:0}, threadId={2:0}, x=3] - UnprovableResult [Line: 24]: 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 3 procedures, 37 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.5s, OverallIterations: 2, TraceHistogramMax: 0, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.1s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=0occurred in iteration=0, InterpolantAutomatonStates: 4, 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, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 40 NumberOfCodeBlocks, 40 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 18 ConstructedInterpolants, 0 QuantifiedInterpolants, 22 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 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! [2022-02-20 03:05:20,831 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Forceful destruction successful, exit code 0 [2022-02-20 03:05:21,035 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...