/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-4b0ab11 [2022-03-04 10:27:15,762 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-03-04 10:27:15,763 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-03-04 10:27:15,801 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-03-04 10:27:15,801 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-03-04 10:27:15,802 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-03-04 10:27:15,803 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-03-04 10:27:15,804 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-03-04 10:27:15,817 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-03-04 10:27:15,821 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-03-04 10:27:15,822 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-03-04 10:27:15,824 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-03-04 10:27:15,824 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-03-04 10:27:15,826 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-03-04 10:27:15,827 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-03-04 10:27:15,829 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-03-04 10:27:15,830 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-03-04 10:27:15,830 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-03-04 10:27:15,834 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-03-04 10:27:15,835 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-03-04 10:27:15,836 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-03-04 10:27:15,840 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-03-04 10:27:15,841 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-03-04 10:27:15,841 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-03-04 10:27:15,843 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-03-04 10:27:15,845 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-03-04 10:27:15,845 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-03-04 10:27:15,846 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-03-04 10:27:15,846 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-03-04 10:27:15,847 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-03-04 10:27:15,847 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-03-04 10:27:15,847 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-03-04 10:27:15,847 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-03-04 10:27:15,848 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-03-04 10:27:15,848 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-03-04 10:27:15,848 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-03-04 10:27:15,856 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 [2022-03-04 10:27:15,877 INFO L113 SettingsManager]: Loading preferences was successful [2022-03-04 10:27:15,877 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-03-04 10:27:15,878 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-03-04 10:27:15,878 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-03-04 10:27:15,878 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-03-04 10:27:15,878 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-03-04 10:27:15,879 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-03-04 10:27:15,883 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-03-04 10:27:15,883 INFO L138 SettingsManager]: * Use SBE=true [2022-03-04 10:27:15,883 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-03-04 10:27:15,884 INFO L138 SettingsManager]: * sizeof long=4 [2022-03-04 10:27:15,884 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-03-04 10:27:15,884 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-03-04 10:27:15,884 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-03-04 10:27:15,884 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-03-04 10:27:15,884 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-03-04 10:27:15,884 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-03-04 10:27:15,884 INFO L138 SettingsManager]: * sizeof long double=12 [2022-03-04 10:27:15,884 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-03-04 10:27:15,885 INFO L138 SettingsManager]: * Use constant arrays=true [2022-03-04 10:27:15,885 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-03-04 10:27:15,885 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-03-04 10:27:15,885 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-03-04 10:27:15,885 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-03-04 10:27:15,885 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-03-04 10:27:15,885 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-04 10:27:15,885 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-03-04 10:27:15,886 INFO L138 SettingsManager]: * Construct finite automaton lazily=true [2022-03-04 10:27:15,886 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-03-04 10:27:15,886 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-03-04 10:27:15,886 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-03-04 10:27:15,886 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-03-04 10:27:15,886 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-03-04 10:27:15,886 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2022-03-04 10:27:15,886 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-03-04 10:27:15,886 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=MCR_WITHOUT_DEPRANKS [2022-03-04 10:27:15,886 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-03-04 10:27:16,098 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-03-04 10:27:16,115 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-03-04 10:27:16,117 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-03-04 10:27:16,118 INFO L271 PluginConnector]: Initializing CDTParser... [2022-03-04 10:27:16,119 INFO L275 PluginConnector]: CDTParser initialized [2022-03-04 10:27:16,120 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/pthreads/predecessorInAtomicBlockBug.c [2022-03-04 10:27:16,179 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/792bcd92f/43a926becc2c403a85ac4dd2333ebec8/FLAG0809dbb16 [2022-03-04 10:27:16,551 INFO L306 CDTParser]: Found 1 translation units. [2022-03-04 10:27:16,551 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/concurrent/pthreads/predecessorInAtomicBlockBug.c [2022-03-04 10:27:16,552 WARN L117 ultiparseSymbolTable]: System include pthread.h could not be resolved by CDT -- only built-in system includes are available. [2022-03-04 10:27:16,579 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/792bcd92f/43a926becc2c403a85ac4dd2333ebec8/FLAG0809dbb16 [2022-03-04 10:27:16,591 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/792bcd92f/43a926becc2c403a85ac4dd2333ebec8 [2022-03-04 10:27:16,594 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-03-04 10:27:16,597 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-03-04 10:27:16,598 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-03-04 10:27:16,598 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-03-04 10:27:16,600 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-03-04 10:27:16,601 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.03 10:27:16" (1/1) ... [2022-03-04 10:27:16,602 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2986a897 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 10:27:16, skipping insertion in model container [2022-03-04 10:27:16,602 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.03 10:27:16" (1/1) ... [2022-03-04 10:27:16,607 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-03-04 10:27:16,619 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-03-04 10:27:16,774 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-03-04 10:27:16,780 INFO L203 MainTranslator]: Completed pre-run [2022-03-04 10:27:16,788 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-03-04 10:27:16,798 INFO L208 MainTranslator]: Completed translation [2022-03-04 10:27:16,799 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 10:27:16 WrapperNode [2022-03-04 10:27:16,799 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-03-04 10:27:16,800 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-03-04 10:27:16,800 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-03-04 10:27:16,800 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-03-04 10:27:16,806 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 10:27:16" (1/1) ... [2022-03-04 10:27:16,811 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 10:27:16" (1/1) ... [2022-03-04 10:27:16,824 INFO L137 Inliner]: procedures = 10, calls = 8, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 19 [2022-03-04 10:27:16,824 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-03-04 10:27:16,826 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-03-04 10:27:16,826 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-03-04 10:27:16,826 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-03-04 10:27:16,832 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 10:27:16" (1/1) ... [2022-03-04 10:27:16,833 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 10:27:16" (1/1) ... [2022-03-04 10:27:16,834 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 10:27:16" (1/1) ... [2022-03-04 10:27:16,834 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 10:27:16" (1/1) ... [2022-03-04 10:27:16,836 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 10:27:16" (1/1) ... [2022-03-04 10:27:16,837 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 10:27:16" (1/1) ... [2022-03-04 10:27:16,837 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 10:27:16" (1/1) ... [2022-03-04 10:27:16,839 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-03-04 10:27:16,839 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-03-04 10:27:16,839 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-03-04 10:27:16,839 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-03-04 10:27:16,840 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 10:27:16" (1/1) ... [2022-03-04 10:27:16,845 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-04 10:27:16,850 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-04 10:27:16,860 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) [2022-03-04 10:27:16,862 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 [2022-03-04 10:27:16,894 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-03-04 10:27:16,895 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-03-04 10:27:16,895 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-03-04 10:27:16,895 INFO L130 BoogieDeclarations]: Found specification of procedure foo [2022-03-04 10:27:16,895 INFO L138 BoogieDeclarations]: Found implementation of procedure foo [2022-03-04 10:27:16,896 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-03-04 10:27:16,896 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-03-04 10:27:16,899 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-03-04 10:27:16,899 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-03-04 10:27:16,900 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-03-04 10:27:16,950 INFO L234 CfgBuilder]: Building ICFG [2022-03-04 10:27:16,952 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-03-04 10:27:17,059 INFO L275 CfgBuilder]: Performing block encoding [2022-03-04 10:27:17,063 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-03-04 10:27:17,064 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-03-04 10:27:17,065 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.03 10:27:17 BoogieIcfgContainer [2022-03-04 10:27:17,065 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-03-04 10:27:17,068 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-03-04 10:27:17,068 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-03-04 10:27:17,071 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-03-04 10:27:17,071 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 04.03 10:27:16" (1/3) ... [2022-03-04 10:27:17,071 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@111fa84e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.03 10:27:17, skipping insertion in model container [2022-03-04 10:27:17,071 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 10:27:16" (2/3) ... [2022-03-04 10:27:17,072 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@111fa84e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.03 10:27:17, skipping insertion in model container [2022-03-04 10:27:17,072 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.03 10:27:17" (3/3) ... [2022-03-04 10:27:17,073 INFO L111 eAbstractionObserver]: Analyzing ICFG predecessorInAtomicBlockBug.c [2022-03-04 10:27:17,076 WARN L150 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-03-04 10:27:17,076 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-03-04 10:27:17,076 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-03-04 10:27:17,076 INFO L534 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-03-04 10:27:17,119 WARN L322 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-04 10:27:17,120 WARN L322 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-04 10:27:17,120 WARN L322 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-04 10:27:17,120 WARN L322 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-04 10:27:17,120 WARN L322 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-04 10:27:17,120 WARN L322 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-04 10:27:17,121 WARN L322 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-04 10:27:17,121 WARN L322 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-04 10:27:17,121 WARN L322 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-04 10:27:17,121 WARN L322 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-04 10:27:17,135 WARN L322 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-04 10:27:17,135 WARN L322 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-04 10:27:17,138 WARN L322 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-04 10:27:17,138 WARN L322 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-04 10:27:17,139 WARN L322 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-04 10:27:17,139 WARN L322 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-04 10:27:17,140 INFO L148 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-03-04 10:27:17,201 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2022-03-04 10:27:17,202 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-04 10:27:17,222 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) [2022-03-04 10:27:17,252 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 [2022-03-04 10:27:17,279 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-03-04 10:27:17,284 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 [2022-03-04 10:27:17,284 INFO L340 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2022-03-04 10:27:17,342 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 34 transitions and produced 35 states. [2022-03-04 10:27:17,343 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting fooErr0ASSERT_VIOLATIONASSERT === [fooErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, fooErr0ASSERT_VIOLATIONASSERT] === [2022-03-04 10:27:17,349 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-04 10:27:17,350 INFO L85 PathProgramCache]: Analyzing trace with hash 1224766481, now seen corresponding path program 1 times [2022-03-04 10:27:17,357 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-04 10:27:17,358 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1891825894] [2022-03-04 10:27:17,358 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-04 10:27:17,359 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-04 10:27:17,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-04 10:27:17,531 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-04 10:27:17,531 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-04 10:27:17,532 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1891825894] [2022-03-04 10:27:17,532 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1891825894] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-04 10:27:17,532 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-04 10:27:17,533 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-03-04 10:27:17,534 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1428277102] [2022-03-04 10:27:17,534 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-04 10:27:17,537 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-04 10:27:17,537 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-04 10:27:17,554 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-04 10:27:17,555 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-04 10:27:17,555 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-04 10:27:17,557 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-04 10:27:17,557 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) [2022-03-04 10:27:17,558 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-04 10:27:17,586 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 82 transitions and produced 83 states. [2022-03-04 10:27:17,587 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-04 10:27:17,587 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-03-04 10:27:17,587 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting fooErr0ASSERT_VIOLATIONASSERT === [fooErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, fooErr0ASSERT_VIOLATIONASSERT] === [2022-03-04 10:27:17,588 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-04 10:27:17,588 INFO L85 PathProgramCache]: Analyzing trace with hash -1933211376, now seen corresponding path program 1 times [2022-03-04 10:27:17,588 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-04 10:27:17,588 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [599343063] [2022-03-04 10:27:17,588 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-04 10:27:17,589 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-04 10:27:17,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-03-04 10:27:17,608 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-03-04 10:27:17,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-03-04 10:27:17,637 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-03-04 10:27:17,637 INFO L628 BasicCegarLoop]: Counterexample is feasible [2022-03-04 10:27:17,639 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location fooErr0ASSERT_VIOLATIONASSERT (2 of 3 remaining) [2022-03-04 10:27:17,640 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location fooErr0ASSERT_VIOLATIONASSERT (1 of 3 remaining) [2022-03-04 10:27:17,640 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATION (0 of 3 remaining) [2022-03-04 10:27:17,640 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-03-04 10:27:17,645 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1] [2022-03-04 10:27:17,652 INFO L230 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-03-04 10:27:17,653 INFO L180 ceAbstractionStarter]: Computing trace abstraction results [2022-03-04 10:27:17,673 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 04.03 10:27:17 BasicIcfg [2022-03-04 10:27:17,673 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-03-04 10:27:17,673 INFO L158 Benchmark]: Toolchain (without parser) took 1076.57ms. Allocated memory was 183.5MB in the beginning and 260.0MB in the end (delta: 76.5MB). Free memory was 125.4MB in the beginning and 182.2MB in the end (delta: -56.8MB). Peak memory consumption was 19.6MB. Max. memory is 8.0GB. [2022-03-04 10:27:17,674 INFO L158 Benchmark]: CDTParser took 0.10ms. Allocated memory is still 183.5MB. Free memory is still 143.2MB. There was no memory consumed. Max. memory is 8.0GB. [2022-03-04 10:27:17,674 INFO L158 Benchmark]: CACSL2BoogieTranslator took 201.10ms. Allocated memory was 183.5MB in the beginning and 260.0MB in the end (delta: 76.5MB). Free memory was 125.3MB in the beginning and 231.0MB in the end (delta: -105.6MB). Peak memory consumption was 5.8MB. Max. memory is 8.0GB. [2022-03-04 10:27:17,675 INFO L158 Benchmark]: Boogie Procedure Inliner took 24.62ms. Allocated memory is still 260.0MB. Free memory was 231.0MB in the beginning and 229.4MB in the end (delta: 1.6MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-03-04 10:27:17,675 INFO L158 Benchmark]: Boogie Preprocessor took 12.68ms. Allocated memory is still 260.0MB. Free memory was 229.4MB in the beginning and 228.3MB in the end (delta: 1.0MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-03-04 10:27:17,675 INFO L158 Benchmark]: RCFGBuilder took 226.00ms. Allocated memory is still 260.0MB. Free memory was 228.3MB in the beginning and 218.4MB in the end (delta: 10.0MB). Peak memory consumption was 10.5MB. Max. memory is 8.0GB. [2022-03-04 10:27:17,676 INFO L158 Benchmark]: TraceAbstraction took 604.89ms. Allocated memory is still 260.0MB. Free memory was 217.9MB in the beginning and 182.2MB in the end (delta: 35.7MB). Peak memory consumption was 35.7MB. Max. memory is 8.0GB. [2022-03-04 10:27:17,678 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.10ms. Allocated memory is still 183.5MB. Free memory is still 143.2MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 201.10ms. Allocated memory was 183.5MB in the beginning and 260.0MB in the end (delta: 76.5MB). Free memory was 125.3MB in the beginning and 231.0MB in the end (delta: -105.6MB). Peak memory consumption was 5.8MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 24.62ms. Allocated memory is still 260.0MB. Free memory was 231.0MB in the beginning and 229.4MB in the end (delta: 1.6MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * Boogie Preprocessor took 12.68ms. Allocated memory is still 260.0MB. Free memory was 229.4MB in the beginning and 228.3MB in the end (delta: 1.0MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 226.00ms. Allocated memory is still 260.0MB. Free memory was 228.3MB in the beginning and 218.4MB in the end (delta: 10.0MB). Peak memory consumption was 10.5MB. Max. memory is 8.0GB. * TraceAbstraction took 604.89ms. Allocated memory is still 260.0MB. Free memory was 217.9MB in the beginning and 182.2MB in the end (delta: 35.7MB). Peak memory consumption was 35.7MB. 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! [2022-03-04 10:27:17,708 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 [2022-03-04 10:27:17,931 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...