/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/regression/pthreadExitUnsafe.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.mcr-reduction-c7b2d19 [2022-03-16 21:24:18,561 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-03-16 21:24:18,562 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-03-16 21:24:18,612 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-03-16 21:24:18,613 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-03-16 21:24:18,615 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-03-16 21:24:18,621 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-03-16 21:24:18,623 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-03-16 21:24:18,624 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-03-16 21:24:18,624 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-03-16 21:24:18,625 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-03-16 21:24:18,625 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-03-16 21:24:18,626 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-03-16 21:24:18,626 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-03-16 21:24:18,627 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-03-16 21:24:18,628 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-03-16 21:24:18,628 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-03-16 21:24:18,629 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-03-16 21:24:18,630 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-03-16 21:24:18,631 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-03-16 21:24:18,632 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-03-16 21:24:18,637 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-03-16 21:24:18,640 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-03-16 21:24:18,641 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-03-16 21:24:18,645 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-03-16 21:24:18,645 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-03-16 21:24:18,645 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-03-16 21:24:18,646 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-03-16 21:24:18,646 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-03-16 21:24:18,647 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-03-16 21:24:18,647 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-03-16 21:24:18,647 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-03-16 21:24:18,648 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-03-16 21:24:18,648 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-03-16 21:24:18,649 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-03-16 21:24:18,649 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-03-16 21:24:18,649 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-03-16 21:24:18,650 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-03-16 21:24:18,650 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-03-16 21:24:18,650 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-03-16 21:24:18,651 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-03-16 21:24:18,655 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 [2022-03-16 21:24:18,678 INFO L113 SettingsManager]: Loading preferences was successful [2022-03-16 21:24:18,678 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-03-16 21:24:18,678 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-03-16 21:24:18,678 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-03-16 21:24:18,682 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-03-16 21:24:18,682 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-03-16 21:24:18,682 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-03-16 21:24:18,683 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-03-16 21:24:18,683 INFO L138 SettingsManager]: * Use SBE=true [2022-03-16 21:24:18,683 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-03-16 21:24:18,683 INFO L138 SettingsManager]: * sizeof long=4 [2022-03-16 21:24:18,684 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-03-16 21:24:18,684 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-03-16 21:24:18,684 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-03-16 21:24:18,684 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-03-16 21:24:18,684 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-03-16 21:24:18,684 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-03-16 21:24:18,684 INFO L138 SettingsManager]: * sizeof long double=12 [2022-03-16 21:24:18,684 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-03-16 21:24:18,684 INFO L138 SettingsManager]: * Use constant arrays=true [2022-03-16 21:24:18,684 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-03-16 21:24:18,684 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-03-16 21:24:18,685 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-03-16 21:24:18,685 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-03-16 21:24:18,686 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-03-16 21:24:18,686 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-16 21:24:18,686 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-03-16 21:24:18,686 INFO L138 SettingsManager]: * Construct finite automaton lazily=true [2022-03-16 21:24:18,686 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-03-16 21:24:18,686 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-03-16 21:24:18,686 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-03-16 21:24:18,686 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-03-16 21:24:18,687 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-03-16 21:24:18,687 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2022-03-16 21:24:18,687 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-03-16 21:24:18,687 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=MCR_WITHOUT_DEPRANKS [2022-03-16 21:24:18,687 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-03-16 21:24:18,905 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-03-16 21:24:18,935 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-03-16 21:24:18,937 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-03-16 21:24:18,937 INFO L271 PluginConnector]: Initializing CDTParser... [2022-03-16 21:24:18,939 INFO L275 PluginConnector]: CDTParser initialized [2022-03-16 21:24:18,940 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/pthreads/regression/pthreadExitUnsafe.c [2022-03-16 21:24:18,984 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/98eeba528/bca8b5dceffc4292bbc3d919bef4af7c/FLAG29c3da189 [2022-03-16 21:24:19,359 INFO L306 CDTParser]: Found 1 translation units. [2022-03-16 21:24:19,360 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/concurrent/pthreads/regression/pthreadExitUnsafe.c [2022-03-16 21:24:19,360 WARN L117 ultiparseSymbolTable]: System include pthread.h could not be resolved by CDT -- only built-in system includes are available. [2022-03-16 21:24:19,361 WARN L117 ultiparseSymbolTable]: System include stdio.h could not be resolved by CDT -- only built-in system includes are available. [2022-03-16 21:24:19,361 WARN L117 ultiparseSymbolTable]: System include stdbool.h could not be resolved by CDT -- only built-in system includes are available. [2022-03-16 21:24:19,399 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/98eeba528/bca8b5dceffc4292bbc3d919bef4af7c/FLAG29c3da189 [2022-03-16 21:24:19,429 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/98eeba528/bca8b5dceffc4292bbc3d919bef4af7c [2022-03-16 21:24:19,432 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-03-16 21:24:19,434 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-03-16 21:24:19,435 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-03-16 21:24:19,435 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-03-16 21:24:19,437 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-03-16 21:24:19,438 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.03 09:24:19" (1/1) ... [2022-03-16 21:24:19,439 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@55bb71d0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 09:24:19, skipping insertion in model container [2022-03-16 21:24:19,439 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.03 09:24:19" (1/1) ... [2022-03-16 21:24:19,444 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-03-16 21:24:19,455 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-03-16 21:24:19,594 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-03-16 21:24:19,599 INFO L203 MainTranslator]: Completed pre-run [2022-03-16 21:24:19,605 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-03-16 21:24:19,613 INFO L208 MainTranslator]: Completed translation [2022-03-16 21:24:19,614 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 09:24:19 WrapperNode [2022-03-16 21:24:19,614 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-03-16 21:24:19,615 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-03-16 21:24:19,615 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-03-16 21:24:19,615 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-03-16 21:24:19,619 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 09:24:19" (1/1) ... [2022-03-16 21:24:19,623 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 09:24:19" (1/1) ... [2022-03-16 21:24:19,634 INFO L137 Inliner]: procedures = 9, calls = 9, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 24 [2022-03-16 21:24:19,634 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-03-16 21:24:19,636 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-03-16 21:24:19,636 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-03-16 21:24:19,636 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-03-16 21:24:19,641 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 09:24:19" (1/1) ... [2022-03-16 21:24:19,641 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 09:24:19" (1/1) ... [2022-03-16 21:24:19,643 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 09:24:19" (1/1) ... [2022-03-16 21:24:19,643 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 09:24:19" (1/1) ... [2022-03-16 21:24:19,650 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 09:24:19" (1/1) ... [2022-03-16 21:24:19,652 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 09:24:19" (1/1) ... [2022-03-16 21:24:19,655 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 09:24:19" (1/1) ... [2022-03-16 21:24:19,657 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-03-16 21:24:19,658 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-03-16 21:24:19,658 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-03-16 21:24:19,659 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-03-16 21:24:19,660 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 09:24:19" (1/1) ... [2022-03-16 21:24:19,665 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-16 21:24:19,670 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-16 21:24:19,680 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) [2022-03-16 21:24:19,698 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 [2022-03-16 21:24:19,709 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-03-16 21:24:19,709 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-03-16 21:24:19,710 INFO L130 BoogieDeclarations]: Found specification of procedure foo [2022-03-16 21:24:19,710 INFO L138 BoogieDeclarations]: Found implementation of procedure foo [2022-03-16 21:24:19,710 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-03-16 21:24:19,710 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-03-16 21:24:19,710 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-03-16 21:24:19,710 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-03-16 21:24:19,710 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-03-16 21:24:19,711 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-03-16 21:24:19,766 INFO L234 CfgBuilder]: Building ICFG [2022-03-16 21:24:19,767 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-03-16 21:24:19,858 INFO L275 CfgBuilder]: Performing block encoding [2022-03-16 21:24:19,870 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-03-16 21:24:19,870 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-03-16 21:24:19,872 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.03 09:24:19 BoogieIcfgContainer [2022-03-16 21:24:19,872 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-03-16 21:24:19,873 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-03-16 21:24:19,873 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-03-16 21:24:19,885 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-03-16 21:24:19,885 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.03 09:24:19" (1/3) ... [2022-03-16 21:24:19,886 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@60caaa8d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.03 09:24:19, skipping insertion in model container [2022-03-16 21:24:19,886 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 09:24:19" (2/3) ... [2022-03-16 21:24:19,886 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@60caaa8d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.03 09:24:19, skipping insertion in model container [2022-03-16 21:24:19,886 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.03 09:24:19" (3/3) ... [2022-03-16 21:24:19,887 INFO L111 eAbstractionObserver]: Analyzing ICFG pthreadExitUnsafe.c [2022-03-16 21:24:19,891 WARN L150 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-03-16 21:24:19,891 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-03-16 21:24:19,891 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-03-16 21:24:19,891 INFO L534 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-03-16 21:24:19,906 WARN L322 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#in~n.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-16 21:24:19,907 WARN L322 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#in~n.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-16 21:24:19,907 WARN L322 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~n.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-16 21:24:19,907 WARN L322 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~n.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-16 21:24:19,907 WARN L322 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#in~n.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-16 21:24:19,907 WARN L322 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#in~n.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-16 21:24:19,907 WARN L322 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~n.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-16 21:24:19,907 WARN L322 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~n.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-16 21:24:19,908 WARN L322 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-16 21:24:19,908 WARN L322 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-16 21:24:19,908 WARN L322 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-16 21:24:19,908 WARN L322 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-16 21:24:19,911 WARN L322 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~n.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-16 21:24:19,911 WARN L322 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~n.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-16 21:24:19,911 WARN L322 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-16 21:24:19,911 WARN L322 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-16 21:24:19,915 INFO L148 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2022-03-16 21:24:19,959 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2022-03-16 21:24:19,959 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-16 21:24:19,973 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) [2022-03-16 21:24:19,974 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 [2022-03-16 21:24:20,015 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-03-16 21:24:20,024 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 [2022-03-16 21:24:20,025 INFO L340 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-03-16 21:24:20,156 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 29 transitions and produced 30 states. [2022-03-16 21:24:20,158 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION] === [2022-03-16 21:24:20,166 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-16 21:24:20,166 INFO L85 PathProgramCache]: Analyzing trace with hash 742844193, now seen corresponding path program 1 times [2022-03-16 21:24:20,180 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-16 21:24:20,181 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [608520531] [2022-03-16 21:24:20,182 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-16 21:24:20,182 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-16 21:24:20,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-16 21:24:20,424 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-16 21:24:20,424 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-16 21:24:20,424 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [608520531] [2022-03-16 21:24:20,425 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [608520531] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-16 21:24:20,425 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-16 21:24:20,425 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-03-16 21:24:20,441 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2033728324] [2022-03-16 21:24:20,441 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-16 21:24:20,445 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-03-16 21:24:20,445 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-16 21:24:20,475 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-03-16 21:24:20,476 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-03-16 21:24:20,476 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-16 21:24:20,477 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-16 21:24:20,478 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 12.0) internal successors, (24), 2 states have internal predecessors, (24), 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) [2022-03-16 21:24:20,478 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-16 21:24:20,536 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 30 transitions and produced 31 states. [2022-03-16 21:24:20,538 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-16 21:24:20,538 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-03-16 21:24:20,538 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION] === [2022-03-16 21:24:20,539 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-16 21:24:20,552 INFO L85 PathProgramCache]: Analyzing trace with hash -941166398, now seen corresponding path program 1 times [2022-03-16 21:24:20,553 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-16 21:24:20,553 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [431597924] [2022-03-16 21:24:20,553 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-16 21:24:20,553 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-16 21:24:20,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-03-16 21:24:20,612 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-03-16 21:24:20,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-03-16 21:24:20,691 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-03-16 21:24:20,691 INFO L628 BasicCegarLoop]: Counterexample is feasible [2022-03-16 21:24:20,703 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONASSERT (1 of 2 remaining) [2022-03-16 21:24:20,707 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATION (0 of 2 remaining) [2022-03-16 21:24:20,707 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-03-16 21:24:20,714 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1] [2022-03-16 21:24:20,728 INFO L230 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-03-16 21:24:20,728 INFO L180 ceAbstractionStarter]: Computing trace abstraction results [2022-03-16 21:24:20,783 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.03 09:24:20 BasicIcfg [2022-03-16 21:24:20,784 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-03-16 21:24:20,785 INFO L158 Benchmark]: Toolchain (without parser) took 1350.84ms. Allocated memory is still 226.5MB. Free memory was 201.3MB in the beginning and 141.6MB in the end (delta: 59.8MB). Peak memory consumption was 59.3MB. Max. memory is 8.0GB. [2022-03-16 21:24:20,785 INFO L158 Benchmark]: CDTParser took 0.09ms. Allocated memory is still 226.5MB. Free memory is still 188.1MB. There was no memory consumed. Max. memory is 8.0GB. [2022-03-16 21:24:20,786 INFO L158 Benchmark]: CACSL2BoogieTranslator took 179.37ms. Allocated memory is still 226.5MB. Free memory was 201.0MB in the beginning and 198.7MB in the end (delta: 2.3MB). Peak memory consumption was 7.9MB. Max. memory is 8.0GB. [2022-03-16 21:24:20,787 INFO L158 Benchmark]: Boogie Procedure Inliner took 19.59ms. Allocated memory is still 226.5MB. Free memory was 198.7MB in the beginning and 197.2MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-03-16 21:24:20,787 INFO L158 Benchmark]: Boogie Preprocessor took 20.99ms. Allocated memory is still 226.5MB. Free memory was 197.2MB in the beginning and 196.1MB in the end (delta: 1.0MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-03-16 21:24:20,789 INFO L158 Benchmark]: RCFGBuilder took 214.11ms. Allocated memory is still 226.5MB. Free memory was 196.1MB in the beginning and 186.6MB in the end (delta: 9.5MB). Peak memory consumption was 9.4MB. Max. memory is 8.0GB. [2022-03-16 21:24:20,789 INFO L158 Benchmark]: TraceAbstraction took 910.72ms. Allocated memory is still 226.5MB. Free memory was 186.2MB in the beginning and 141.6MB in the end (delta: 44.6MB). Peak memory consumption was 45.1MB. Max. memory is 8.0GB. [2022-03-16 21:24:20,806 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 226.5MB. Free memory is still 188.1MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 179.37ms. Allocated memory is still 226.5MB. Free memory was 201.0MB in the beginning and 198.7MB in the end (delta: 2.3MB). Peak memory consumption was 7.9MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 19.59ms. Allocated memory is still 226.5MB. Free memory was 198.7MB in the beginning and 197.2MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 20.99ms. Allocated memory is still 226.5MB. Free memory was 197.2MB in the beginning and 196.1MB in the end (delta: 1.0MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 214.11ms. Allocated memory is still 226.5MB. Free memory was 196.1MB in the beginning and 186.6MB in the end (delta: 9.5MB). Peak memory consumption was 9.4MB. Max. memory is 8.0GB. * TraceAbstraction took 910.72ms. Allocated memory is still 226.5MB. Free memory was 186.2MB in the beginning and 141.6MB in the end (delta: 44.6MB). Peak memory consumption was 45.1MB. 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: 28]: assertion can be violated assertion can be violated We found a FailurePath: [L24] 0 pthread_t th_id; VAL [th_id={2:0}] [L25] FCALL, FORK 0 pthread_create(&th_id, NULL, foo, NULL) VAL [n={0:0}, pthread_create(&th_id, NULL, foo, NULL)=-1, th_id={2:0}] [L26] 0 \read(th_id) VAL [\read(th_id)=-1, n={0:0}, th_id={2:0}] [L17] COND TRUE 1 1 VAL [n={0:0}, n={0:0}] [L26] FCALL, JOIN 1 pthread_join(th_id, NULL) VAL [\read(th_id)=-1, \result={0:0}, n={0:0}, n={0:0}, th_id={2:0}] [L28] 0 CodeAnnotStmt[Assertion] VAL [\result={0:0}, n={0:0}, n={0:0}, th_id={2:0}] - 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, 40 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.8s, OverallIterations: 2, TraceHistogramMax: 0, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.2s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=0occurred in iteration=0, InterpolantAutomatonStates: 2, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 49 NumberOfCodeBlocks, 49 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 23 ConstructedInterpolants, 0 QuantifiedInterpolants, 23 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! [2022-03-16 21:24:20,843 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 [2022-03-16 21:24:21,052 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...