/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-MCRwithoutDepranks-Lazy.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/concurrent/pthreads/predecessorInAtomicBlockBug.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.mcr-reduction-820ea7a [2022-02-20 10:46:20,620 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-02-20 10:46:20,622 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-02-20 10:46:20,663 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-02-20 10:46:20,664 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-02-20 10:46:20,665 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-02-20 10:46:20,666 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-02-20 10:46:20,687 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-02-20 10:46:20,689 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-02-20 10:46:20,690 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-02-20 10:46:20,691 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-02-20 10:46:20,692 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-02-20 10:46:20,693 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-02-20 10:46:20,694 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-02-20 10:46:20,695 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-02-20 10:46:20,696 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-02-20 10:46:20,696 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-02-20 10:46:20,697 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-02-20 10:46:20,700 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-02-20 10:46:20,702 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-02-20 10:46:20,704 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-02-20 10:46:20,705 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-02-20 10:46:20,706 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-02-20 10:46:20,707 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-02-20 10:46:20,710 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-02-20 10:46:20,712 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-02-20 10:46:20,713 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-02-20 10:46:20,714 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-02-20 10:46:20,714 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-02-20 10:46:20,715 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-02-20 10:46:20,715 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-02-20 10:46:20,716 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-02-20 10:46:20,716 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-02-20 10:46:20,716 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-02-20 10:46:20,717 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-02-20 10:46:20,717 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-02-20 10:46:20,732 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-MCRwithoutDepranks-Lazy.epf [2022-02-20 10:46:20,757 INFO L113 SettingsManager]: Loading preferences was successful [2022-02-20 10:46:20,758 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-02-20 10:46:20,758 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-02-20 10:46:20,758 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-02-20 10:46:20,759 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-02-20 10:46:20,759 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-02-20 10:46:20,759 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-02-20 10:46:20,759 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-02-20 10:46:20,759 INFO L138 SettingsManager]: * Use SBE=true [2022-02-20 10:46:20,760 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-02-20 10:46:20,760 INFO L138 SettingsManager]: * sizeof long=4 [2022-02-20 10:46:20,760 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-02-20 10:46:20,760 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-02-20 10:46:20,760 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-02-20 10:46:20,760 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-02-20 10:46:20,760 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-02-20 10:46:20,760 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-02-20 10:46:20,760 INFO L138 SettingsManager]: * sizeof long double=12 [2022-02-20 10:46:20,760 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-02-20 10:46:20,761 INFO L138 SettingsManager]: * Use constant arrays=true [2022-02-20 10:46:20,761 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-02-20 10:46:20,761 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-02-20 10:46:20,761 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-02-20 10:46:20,761 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-02-20 10:46:20,761 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-02-20 10:46:20,761 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-20 10:46:20,761 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-02-20 10:46:20,761 INFO L138 SettingsManager]: * Construct finite automaton lazily=true [2022-02-20 10:46:20,762 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-02-20 10:46:20,762 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-02-20 10:46:20,762 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-02-20 10:46:20,762 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-02-20 10:46:20,762 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-02-20 10:46:20,762 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2022-02-20 10:46:20,762 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-02-20 10:46:20,762 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=MCR_WITHOUT_DEPRANKS [2022-02-20 10:46:20,762 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-02-20 10:46:20,962 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-02-20 10:46:20,981 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-02-20 10:46:20,983 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-02-20 10:46:20,983 INFO L271 PluginConnector]: Initializing CDTParser... [2022-02-20 10:46:20,985 INFO L275 PluginConnector]: CDTParser initialized [2022-02-20 10:46:20,985 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/pthreads/predecessorInAtomicBlockBug.c [2022-02-20 10:46:21,038 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0c1b954e1/74858394cb7e47248abe1ad8f1a6678a/FLAG8cfa8658a [2022-02-20 10:46:21,405 INFO L306 CDTParser]: Found 1 translation units. [2022-02-20 10:46:21,406 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/concurrent/pthreads/predecessorInAtomicBlockBug.c [2022-02-20 10:46:21,406 WARN L117 ultiparseSymbolTable]: System include pthread.h could not be resolved by CDT -- only built-in system includes are available. [2022-02-20 10:46:21,429 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0c1b954e1/74858394cb7e47248abe1ad8f1a6678a/FLAG8cfa8658a [2022-02-20 10:46:21,440 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0c1b954e1/74858394cb7e47248abe1ad8f1a6678a [2022-02-20 10:46:21,449 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-02-20 10:46:21,452 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-02-20 10:46:21,454 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-02-20 10:46:21,454 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-02-20 10:46:21,456 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-02-20 10:46:21,457 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.02 10:46:21" (1/1) ... [2022-02-20 10:46:21,457 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2624ad9d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 10:46:21, skipping insertion in model container [2022-02-20 10:46:21,457 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.02 10:46:21" (1/1) ... [2022-02-20 10:46:21,462 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-02-20 10:46:21,474 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-02-20 10:46:21,660 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-20 10:46:21,668 INFO L203 MainTranslator]: Completed pre-run [2022-02-20 10:46:21,678 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-20 10:46:21,688 INFO L208 MainTranslator]: Completed translation [2022-02-20 10:46:21,688 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 10:46:21 WrapperNode [2022-02-20 10:46:21,688 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-02-20 10:46:21,689 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-02-20 10:46:21,689 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-02-20 10:46:21,689 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-02-20 10:46:21,695 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 10:46:21" (1/1) ... [2022-02-20 10:46:21,700 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 10:46:21" (1/1) ... [2022-02-20 10:46:21,712 INFO L137 Inliner]: procedures = 10, calls = 8, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 19 [2022-02-20 10:46:21,712 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-02-20 10:46:21,714 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-02-20 10:46:21,714 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-02-20 10:46:21,714 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-02-20 10:46:21,719 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 10:46:21" (1/1) ... [2022-02-20 10:46:21,720 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 10:46:21" (1/1) ... [2022-02-20 10:46:21,721 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 10:46:21" (1/1) ... [2022-02-20 10:46:21,722 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 10:46:21" (1/1) ... [2022-02-20 10:46:21,726 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 10:46:21" (1/1) ... [2022-02-20 10:46:21,727 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 10:46:21" (1/1) ... [2022-02-20 10:46:21,727 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 10:46:21" (1/1) ... [2022-02-20 10:46:21,731 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-02-20 10:46:21,732 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-02-20 10:46:21,732 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-02-20 10:46:21,732 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-02-20 10:46:21,733 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 10:46:21" (1/1) ... [2022-02-20 10:46:21,739 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-20 10:46:21,748 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-20 10:46:21,765 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 10:46:21,772 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 10:46:21,803 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-02-20 10:46:21,803 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-02-20 10:46:21,803 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-02-20 10:46:21,803 INFO L130 BoogieDeclarations]: Found specification of procedure foo [2022-02-20 10:46:21,804 INFO L138 BoogieDeclarations]: Found implementation of procedure foo [2022-02-20 10:46:21,804 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-02-20 10:46:21,804 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-02-20 10:46:21,804 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-02-20 10:46:21,804 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-02-20 10:46:21,805 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 10:46:21,851 INFO L234 CfgBuilder]: Building ICFG [2022-02-20 10:46:21,852 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-02-20 10:46:21,908 INFO L275 CfgBuilder]: Performing block encoding [2022-02-20 10:46:21,919 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-02-20 10:46:21,919 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-02-20 10:46:21,921 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.02 10:46:21 BoogieIcfgContainer [2022-02-20 10:46:21,921 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-02-20 10:46:21,923 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-02-20 10:46:21,923 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-02-20 10:46:21,927 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-02-20 10:46:21,927 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.02 10:46:21" (1/3) ... [2022-02-20 10:46:21,928 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5c3be44d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.02 10:46:21, skipping insertion in model container [2022-02-20 10:46:21,928 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 10:46:21" (2/3) ... [2022-02-20 10:46:21,928 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5c3be44d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.02 10:46:21, skipping insertion in model container [2022-02-20 10:46:21,928 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.02 10:46:21" (3/3) ... [2022-02-20 10:46:21,929 INFO L111 eAbstractionObserver]: Analyzing ICFG predecessorInAtomicBlockBug.c [2022-02-20 10:46:21,938 WARN L150 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-02-20 10:46:21,938 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-02-20 10:46:21,938 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-02-20 10:46:21,938 INFO L534 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-02-20 10:46:21,962 WARN L322 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-20 10:46:21,962 WARN L322 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-20 10:46:21,962 WARN L322 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-20 10:46:21,962 WARN L322 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-20 10:46:21,962 WARN L322 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-20 10:46:21,963 WARN L322 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-20 10:46:21,963 WARN L322 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-20 10:46:21,963 WARN L322 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-20 10:46:21,963 WARN L322 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-20 10:46:21,963 WARN L322 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-20 10:46:21,963 WARN L322 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-20 10:46:21,964 WARN L322 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-20 10:46:21,966 WARN L322 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-20 10:46:21,966 WARN L322 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-20 10:46:21,966 WARN L322 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-20 10:46:21,966 WARN L322 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-20 10:46:21,967 INFO L148 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-02-20 10:46:21,998 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2022-02-20 10:46:21,999 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-20 10:46:22,000 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 10:46:22,002 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 10:46:22,025 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-02-20 10:46:22,031 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 10:46:22,031 INFO L340 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2022-02-20 10:46:22,097 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 34 transitions and produced 35 states. [2022-02-20 10:46:22,099 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting fooErr0ASSERT_VIOLATIONASSERT === [fooErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, fooErr0ASSERT_VIOLATIONASSERT] === [2022-02-20 10:46:22,105 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-20 10:46:22,106 INFO L85 PathProgramCache]: Analyzing trace with hash 1224766481, now seen corresponding path program 1 times [2022-02-20 10:46:22,120 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-20 10:46:22,121 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [87689029] [2022-02-20 10:46:22,121 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-20 10:46:22,122 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-20 10:46:22,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-20 10:46:22,349 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 10:46:22,350 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-20 10:46:22,350 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [87689029] [2022-02-20 10:46:22,350 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [87689029] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-20 10:46:22,351 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-20 10:46:22,351 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-02-20 10:46:22,352 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1224720487] [2022-02-20 10:46:22,352 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-20 10:46:22,355 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-02-20 10:46:22,355 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-20 10:46:22,369 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-02-20 10:46:22,370 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-02-20 10:46:22,371 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-20 10:46:22,372 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-20 10:46:22,373 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 8.333333333333334) internal successors, (25), 4 states have internal predecessors, (25), 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 10:46:22,373 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-20 10:46:22,465 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 82 transitions and produced 83 states. [2022-02-20 10:46:22,466 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-02-20 10:46:22,466 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-02-20 10:46:22,467 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting fooErr0ASSERT_VIOLATIONASSERT === [fooErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, fooErr0ASSERT_VIOLATIONASSERT] === [2022-02-20 10:46:22,467 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-20 10:46:22,467 INFO L85 PathProgramCache]: Analyzing trace with hash -1933211376, now seen corresponding path program 1 times [2022-02-20 10:46:22,467 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-20 10:46:22,468 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [103942390] [2022-02-20 10:46:22,468 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-20 10:46:22,468 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-20 10:46:22,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-20 10:46:22,489 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-20 10:46:22,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-20 10:46:22,514 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-20 10:46:22,514 INFO L628 BasicCegarLoop]: Counterexample is feasible [2022-02-20 10:46:22,516 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location fooErr0ASSERT_VIOLATIONASSERT (2 of 3 remaining) [2022-02-20 10:46:22,517 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location fooErr0ASSERT_VIOLATIONASSERT (1 of 3 remaining) [2022-02-20 10:46:22,518 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATION (0 of 3 remaining) [2022-02-20 10:46:22,518 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-02-20 10:46:22,524 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1] [2022-02-20 10:46:22,528 INFO L230 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-02-20 10:46:22,528 INFO L180 ceAbstractionStarter]: Computing trace abstraction results [2022-02-20 10:46:22,550 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.02 10:46:22 BasicIcfg [2022-02-20 10:46:22,550 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-02-20 10:46:22,551 INFO L158 Benchmark]: Toolchain (without parser) took 1099.48ms. Allocated memory was 188.7MB in the beginning and 320.9MB in the end (delta: 132.1MB). Free memory was 129.8MB in the beginning and 276.4MB in the end (delta: -146.7MB). There was no memory consumed. Max. memory is 8.0GB. [2022-02-20 10:46:22,552 INFO L158 Benchmark]: CDTParser took 0.11ms. Allocated memory is still 188.7MB. Free memory is still 147.5MB. There was no memory consumed. Max. memory is 8.0GB. [2022-02-20 10:46:22,553 INFO L158 Benchmark]: CACSL2BoogieTranslator took 234.91ms. Allocated memory is still 188.7MB. Free memory was 129.6MB in the beginning and 155.9MB in the end (delta: -26.3MB). Peak memory consumption was 15.4MB. Max. memory is 8.0GB. [2022-02-20 10:46:22,553 INFO L158 Benchmark]: Boogie Procedure Inliner took 23.08ms. Allocated memory is still 188.7MB. Free memory was 155.9MB in the beginning and 154.3MB in the end (delta: 1.6MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-02-20 10:46:22,554 INFO L158 Benchmark]: Boogie Preprocessor took 16.73ms. Allocated memory is still 188.7MB. Free memory was 154.3MB in the beginning and 153.5MB in the end (delta: 803.5kB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-02-20 10:46:22,556 INFO L158 Benchmark]: RCFGBuilder took 189.29ms. Allocated memory is still 188.7MB. Free memory was 153.3MB in the beginning and 144.6MB in the end (delta: 8.7MB). Peak memory consumption was 8.4MB. Max. memory is 8.0GB. [2022-02-20 10:46:22,557 INFO L158 Benchmark]: TraceAbstraction took 628.00ms. Allocated memory was 188.7MB in the beginning and 320.9MB in the end (delta: 132.1MB). Free memory was 144.1MB in the beginning and 276.4MB in the end (delta: -132.3MB). Peak memory consumption was 254.4kB. Max. memory is 8.0GB. [2022-02-20 10:46:22,563 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11ms. Allocated memory is still 188.7MB. Free memory is still 147.5MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 234.91ms. Allocated memory is still 188.7MB. Free memory was 129.6MB in the beginning and 155.9MB in the end (delta: -26.3MB). Peak memory consumption was 15.4MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 23.08ms. Allocated memory is still 188.7MB. Free memory was 155.9MB in the beginning and 154.3MB in the end (delta: 1.6MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * Boogie Preprocessor took 16.73ms. Allocated memory is still 188.7MB. Free memory was 154.3MB in the beginning and 153.5MB in the end (delta: 803.5kB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 189.29ms. Allocated memory is still 188.7MB. Free memory was 153.3MB in the beginning and 144.6MB in the end (delta: 8.7MB). Peak memory consumption was 8.4MB. Max. memory is 8.0GB. * TraceAbstraction took 628.00ms. Allocated memory was 188.7MB in the beginning and 320.9MB in the end (delta: 132.1MB). Free memory was 144.1MB in the beginning and 276.4MB in the end (delta: -132.3MB). Peak memory consumption was 254.4kB. 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: 19]: assertion can be violated assertion can be violated We found a FailurePath: [L16] 0 int x = 0; VAL [x=0] [L24] 0 pthread_t threadId; VAL [threadId={2:0}, x=0] [L25] 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] [L27] 0 x = x - 1 VAL [arg={0:0}, threadId={2:0}, x=-1] [L19] 1 CodeAnnotStmt[Assertion] VAL [arg={0:0}, arg={0:0}, x=-1] - UnprovableResult [Line: 25]: 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, 3 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, 44 NumberOfCodeBlocks, 44 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 24 ConstructedInterpolants, 0 QuantifiedInterpolants, 72 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 10:46:22,588 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Ended with exit code 0 [2022-02-20 10:46:22,805 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...