/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/gemcutter/NewStatesSleepPersistentFixedOrder.epf --traceabstraction.cegar.restart.behaviour ONE_CEGAR_PER_THREAD_INSTANCE -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml --cacsl2boogietranslator.check.absence.of.data.races.in.concurrent.programs true --cacsl2boogietranslator.check.unreachability.of.error.function.in.sv-comp.mode false -i ../../../trunk/examples/svcomp/pthread-divine/condvar_spurious_wakeup.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-44940e9-m [2022-11-09 16:42:24,305 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-09 16:42:24,307 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-09 16:42:24,335 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2022-11-09 16:42:24,343 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-09 16:42:24,344 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-09 16:42:24,345 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-09 16:42:24,346 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-09 16:42:24,347 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-09 16:42:24,347 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-09 16:42:24,349 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-09 16:42:24,350 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-09 16:42:24,351 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-09 16:42:24,352 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-09 16:42:24,353 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-09 16:42:24,354 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-09 16:42:24,357 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-09 16:42:24,357 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-09 16:42:24,358 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-09 16:42:24,358 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-09 16:42:24,359 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-09 16:42:24,360 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... 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[2022-11-09 16:42:24,364 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-09 16:42:24,365 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-09 16:42:24,366 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-09 16:42:24,367 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/gemcutter/NewStatesSleepPersistentFixedOrder.epf [2022-11-09 16:42:24,386 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-09 16:42:24,386 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-09 16:42:24,387 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-09 16:42:24,387 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-09 16:42:24,387 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-09 16:42:24,388 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-09 16:42:24,388 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-09 16:42:24,388 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-09 16:42:24,389 INFO L138 SettingsManager]: * Use SBE=true [2022-11-09 16:42:24,389 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-09 16:42:24,389 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-09 16:42:24,389 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-09 16:42:24,389 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-09 16:42:24,390 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-09 16:42:24,390 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-09 16:42:24,390 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-09 16:42:24,390 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-09 16:42:24,390 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-09 16:42:24,390 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-09 16:42:24,390 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-09 16:42:24,391 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-09 16:42:24,391 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-09 16:42:24,391 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-09 16:42:24,391 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-11-09 16:42:24,391 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-09 16:42:24,391 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-09 16:42:24,391 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-09 16:42:24,392 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-09 16:42:24,392 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-09 16:42:24,392 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-09 16:42:24,392 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-09 16:42:24,392 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-09 16:42:24,392 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2022-11-09 16:42:24,392 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-09 16:42:24,393 INFO L138 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE [2022-11-09 16:42:24,393 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2022-11-09 16:42:24,393 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: CEGAR restart behaviour -> ONE_CEGAR_PER_THREAD_INSTANCE Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check absence of data races in concurrent programs -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check unreachability of error function in SV-COMP mode -> false [2022-11-09 16:42:24,593 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-09 16:42:24,620 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-09 16:42:24,623 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-09 16:42:24,623 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-09 16:42:24,624 INFO L275 PluginConnector]: CDTParser initialized [2022-11-09 16:42:24,625 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-divine/condvar_spurious_wakeup.i [2022-11-09 16:42:24,673 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c55dc8762/49c6b3e02b2b4c52b33f097c389ea0e6/FLAGdbf9b5013 [2022-11-09 16:42:25,107 INFO L306 CDTParser]: Found 1 translation units. [2022-11-09 16:42:25,108 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-divine/condvar_spurious_wakeup.i [2022-11-09 16:42:25,122 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c55dc8762/49c6b3e02b2b4c52b33f097c389ea0e6/FLAGdbf9b5013 [2022-11-09 16:42:25,481 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c55dc8762/49c6b3e02b2b4c52b33f097c389ea0e6 [2022-11-09 16:42:25,482 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-09 16:42:25,483 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-11-09 16:42:25,485 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-09 16:42:25,485 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-09 16:42:25,493 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-09 16:42:25,493 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 04:42:25" (1/1) ... [2022-11-09 16:42:25,494 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@ac4ddc3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:42:25, skipping insertion in model container [2022-11-09 16:42:25,494 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 04:42:25" (1/1) ... [2022-11-09 16:42:25,500 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-09 16:42:25,530 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-09 16:42:25,648 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-11-09 16:42:25,766 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-divine/condvar_spurious_wakeup.i[30416,30429] [2022-11-09 16:42:25,775 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-09 16:42:25,789 INFO L203 MainTranslator]: Completed pre-run [2022-11-09 16:42:25,810 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-11-09 16:42:25,847 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-divine/condvar_spurious_wakeup.i[30416,30429] [2022-11-09 16:42:25,858 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-09 16:42:25,896 INFO L208 MainTranslator]: Completed translation [2022-11-09 16:42:25,896 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:42:25 WrapperNode [2022-11-09 16:42:25,896 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-09 16:42:25,898 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-09 16:42:25,898 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-09 16:42:25,898 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-09 16:42:25,905 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:42:25" (1/1) ... [2022-11-09 16:42:25,916 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:42:25" (1/1) ... [2022-11-09 16:42:25,943 INFO L138 Inliner]: procedures = 169, calls = 35, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 64 [2022-11-09 16:42:25,944 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-09 16:42:25,944 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-09 16:42:25,944 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-09 16:42:25,945 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-09 16:42:25,950 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:42:25" (1/1) ... [2022-11-09 16:42:25,950 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:42:25" (1/1) ... [2022-11-09 16:42:25,955 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:42:25" (1/1) ... [2022-11-09 16:42:25,955 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:42:25" (1/1) ... [2022-11-09 16:42:25,960 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:42:25" (1/1) ... [2022-11-09 16:42:25,971 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:42:25" (1/1) ... [2022-11-09 16:42:25,977 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:42:25" (1/1) ... [2022-11-09 16:42:25,978 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:42:25" (1/1) ... [2022-11-09 16:42:25,980 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-09 16:42:25,981 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-09 16:42:25,981 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-09 16:42:25,981 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-09 16:42:25,983 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:42:25" (1/1) ... [2022-11-09 16:42:25,987 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-09 16:42:25,994 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-11-09 16:42:26,005 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) [2022-11-09 16:42:26,011 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 [2022-11-09 16:42:26,033 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-09 16:42:26,034 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-09 16:42:26,034 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-11-09 16:42:26,034 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-09 16:42:26,034 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-09 16:42:26,034 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-09 16:42:26,034 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-09 16:42:26,034 INFO L130 BoogieDeclarations]: Found specification of procedure thread [2022-11-09 16:42:26,034 INFO L138 BoogieDeclarations]: Found implementation of procedure thread [2022-11-09 16:42:26,035 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-09 16:42:26,035 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-09 16:42:26,036 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-09 16:42:26,146 INFO L235 CfgBuilder]: Building ICFG [2022-11-09 16:42:26,148 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-09 16:42:26,347 INFO L276 CfgBuilder]: Performing block encoding [2022-11-09 16:42:26,353 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-09 16:42:26,353 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-09 16:42:26,355 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 04:42:26 BoogieIcfgContainer [2022-11-09 16:42:26,355 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-09 16:42:26,357 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-09 16:42:26,357 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-09 16:42:26,360 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-09 16:42:26,360 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.11 04:42:25" (1/3) ... [2022-11-09 16:42:26,360 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7a0444b2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 04:42:26, skipping insertion in model container [2022-11-09 16:42:26,360 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:42:25" (2/3) ... [2022-11-09 16:42:26,361 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7a0444b2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 04:42:26, skipping insertion in model container [2022-11-09 16:42:26,361 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 04:42:26" (3/3) ... [2022-11-09 16:42:26,362 INFO L112 eAbstractionObserver]: Analyzing ICFG condvar_spurious_wakeup.i [2022-11-09 16:42:26,369 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-09 16:42:26,382 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-09 16:42:26,383 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2022-11-09 16:42:26,383 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-09 16:42:26,438 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2022-11-09 16:42:26,485 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-09 16:42:26,486 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2022-11-09 16:42:26,486 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-11-09 16:42:26,488 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) [2022-11-09 16:42:26,505 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 [2022-11-09 16:42:26,525 INFO L159 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2022-11-09 16:42:26,537 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == threadThread1of1ForFork0 ======== [2022-11-09 16:42:26,542 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PARTIAL_ORDER_FA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@71e171e2, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-09 16:42:26,543 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-09 16:42:26,626 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting threadErr0ASSERT_VIOLATIONDATA_RACE === [threadErr0ASSERT_VIOLATIONDATA_RACE] === [2022-11-09 16:42:26,630 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-09 16:42:26,630 INFO L85 PathProgramCache]: Analyzing trace with hash -171528791, now seen corresponding path program 1 times [2022-11-09 16:42:26,638 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-09 16:42:26,639 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1439319589] [2022-11-09 16:42:26,639 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-09 16:42:26,640 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-09 16:42:26,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-09 16:42:26,877 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-09 16:42:26,878 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-09 16:42:26,878 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1439319589] [2022-11-09 16:42:26,879 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1439319589] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-09 16:42:26,879 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-09 16:42:26,879 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-09 16:42:26,880 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1331814455] [2022-11-09 16:42:26,881 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-09 16:42:26,885 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-09 16:42:26,885 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-09 16:42:26,902 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-09 16:42:26,903 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-09 16:42:26,909 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-09 16:42:26,911 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-09 16:42:26,912 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 25.0) internal successors, (50), 3 states have internal predecessors, (50), 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) [2022-11-09 16:42:26,912 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-09 16:42:27,020 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-09 16:42:27,021 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-09 16:42:27,021 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting threadErr0ASSERT_VIOLATIONDATA_RACE === [threadErr0ASSERT_VIOLATIONDATA_RACE] === [2022-11-09 16:42:27,022 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-09 16:42:27,022 INFO L85 PathProgramCache]: Analyzing trace with hash 731119388, now seen corresponding path program 1 times [2022-11-09 16:42:27,022 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-09 16:42:27,022 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [701474050] [2022-11-09 16:42:27,022 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-09 16:42:27,023 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-09 16:42:27,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-09 16:42:27,056 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-09 16:42:27,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-09 16:42:27,108 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-09 16:42:27,108 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-09 16:42:27,110 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location threadErr0ASSERT_VIOLATIONDATA_RACE (0 of 1 remaining) [2022-11-09 16:42:27,112 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-09 16:42:27,122 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1] [2022-11-09 16:42:27,124 INFO L307 ceAbstractionStarter]: Result for error location threadThread1of1ForFork0 was UNSAFE (1/2) [2022-11-09 16:42:27,128 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-11-09 16:42:27,128 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-09 16:42:27,168 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.11 04:42:27 BasicIcfg [2022-11-09 16:42:27,168 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-09 16:42:27,169 INFO L158 Benchmark]: Toolchain (without parser) took 1685.12ms. Allocated memory was 227.5MB in the beginning and 352.3MB in the end (delta: 124.8MB). Free memory was 192.5MB in the beginning and 307.4MB in the end (delta: -114.9MB). Peak memory consumption was 9.4MB. Max. memory is 8.0GB. [2022-11-09 16:42:27,169 INFO L158 Benchmark]: CDTParser took 0.44ms. Allocated memory is still 227.5MB. Free memory is still 179.9MB. There was no memory consumed. Max. memory is 8.0GB. [2022-11-09 16:42:27,169 INFO L158 Benchmark]: CACSL2BoogieTranslator took 411.97ms. Allocated memory was 227.5MB in the beginning and 352.3MB in the end (delta: 124.8MB). Free memory was 192.3MB in the beginning and 310.4MB in the end (delta: -118.1MB). Peak memory consumption was 8.7MB. Max. memory is 8.0GB. [2022-11-09 16:42:27,170 INFO L158 Benchmark]: Boogie Procedure Inliner took 46.02ms. Allocated memory is still 352.3MB. Free memory was 310.4MB in the beginning and 308.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-11-09 16:42:27,170 INFO L158 Benchmark]: Boogie Preprocessor took 35.90ms. Allocated memory is still 352.3MB. Free memory was 308.4MB in the beginning and 306.7MB in the end (delta: 1.6MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-11-09 16:42:27,170 INFO L158 Benchmark]: RCFGBuilder took 373.93ms. Allocated memory is still 352.3MB. Free memory was 306.7MB in the beginning and 293.1MB in the end (delta: 13.6MB). Peak memory consumption was 13.6MB. Max. memory is 8.0GB. [2022-11-09 16:42:27,171 INFO L158 Benchmark]: TraceAbstraction took 811.28ms. Allocated memory is still 352.3MB. Free memory was 292.3MB in the beginning and 307.4MB in the end (delta: -15.1MB). There was no memory consumed. Max. memory is 8.0GB. [2022-11-09 16:42:27,173 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.44ms. Allocated memory is still 227.5MB. Free memory is still 179.9MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 411.97ms. Allocated memory was 227.5MB in the beginning and 352.3MB in the end (delta: 124.8MB). Free memory was 192.3MB in the beginning and 310.4MB in the end (delta: -118.1MB). Peak memory consumption was 8.7MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 46.02ms. Allocated memory is still 352.3MB. Free memory was 310.4MB in the beginning and 308.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 35.90ms. Allocated memory is still 352.3MB. Free memory was 308.4MB in the beginning and 306.7MB in the end (delta: 1.6MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 373.93ms. Allocated memory is still 352.3MB. Free memory was 306.7MB in the beginning and 293.1MB in the end (delta: 13.6MB). Peak memory consumption was 13.6MB. Max. memory is 8.0GB. * TraceAbstraction took 811.28ms. Allocated memory is still 352.3MB. Free memory was 292.3MB in the beginning and 307.4MB in the end (delta: -15.1MB). There was no memory consumed. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Independence relation #1 benchmarks ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 320, positive: 310, positive conditional: 37, positive unconditional: 273, negative: 10, negative conditional: 6, negative unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 315, positive: 310, positive conditional: 37, positive unconditional: 273, negative: 5, negative conditional: 1, negative unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 315, positive: 310, positive conditional: 37, positive unconditional: 273, negative: 5, negative conditional: 1, negative unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 317, positive: 310, positive conditional: 1, positive unconditional: 309, negative: 7, negative conditional: 1, negative unconditional: 6, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 317, positive: 310, positive conditional: 1, positive unconditional: 309, negative: 7, negative conditional: 1, negative unconditional: 6, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 317, positive: 310, positive conditional: 1, positive unconditional: 309, negative: 7, negative conditional: 1, negative unconditional: 6, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 280, positive: 274, positive conditional: 1, positive unconditional: 273, negative: 6, negative conditional: 1, negative unconditional: 5, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 280, positive: 273, positive conditional: 0, positive unconditional: 273, negative: 7, negative conditional: 0, negative unconditional: 7, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 7, positive: 1, positive conditional: 1, positive unconditional: 0, negative: 6, negative conditional: 1, negative unconditional: 5, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 108, positive: 23, positive conditional: 23, positive unconditional: 0, negative: 85, negative conditional: 26, negative unconditional: 59, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 317, positive: 36, positive conditional: 0, positive unconditional: 36, negative: 1, negative conditional: 0, negative unconditional: 1, unknown: 280, unknown conditional: 2, unknown unconditional: 278] , Statistics on independence cache: Total cache size (in pairs): 280, Positive cache size: 274, Positive conditional cache size: 1, Positive unconditional cache size: 273, Negative cache size: 6, Negative conditional cache size: 1, Negative unconditional cache size: 5, Eliminated conditions: 0, Maximal queried relation: 1, Independence queries for same thread: 5 - StatisticsResult: Persistent set benchmarks Persistent set computation time: 0.1s, Number of persistent set computation: 58, Number of trivial persistent sets: 51, Underlying independence relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 277, positive: 273, positive conditional: 0, positive unconditional: 273, negative: 4, negative conditional: 0, negative unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 320, positive: 310, positive conditional: 37, positive unconditional: 273, negative: 10, negative conditional: 6, negative unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 315, positive: 310, positive conditional: 37, positive unconditional: 273, negative: 5, negative conditional: 1, negative unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 315, positive: 310, positive conditional: 37, positive unconditional: 273, negative: 5, negative conditional: 1, negative unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 317, positive: 310, positive conditional: 1, positive unconditional: 309, negative: 7, negative conditional: 1, negative unconditional: 6, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 317, positive: 310, positive conditional: 1, positive unconditional: 309, negative: 7, negative conditional: 1, negative unconditional: 6, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 317, positive: 310, positive conditional: 1, positive unconditional: 309, negative: 7, negative conditional: 1, negative unconditional: 6, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 280, positive: 274, positive conditional: 1, positive unconditional: 273, negative: 6, negative conditional: 1, negative unconditional: 5, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 280, positive: 273, positive conditional: 0, positive unconditional: 273, negative: 7, negative conditional: 0, negative unconditional: 7, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 7, positive: 1, positive conditional: 1, positive unconditional: 0, negative: 6, negative conditional: 1, negative unconditional: 5, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 108, positive: 23, positive conditional: 23, positive unconditional: 0, negative: 85, negative conditional: 26, negative unconditional: 59, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 317, positive: 36, positive conditional: 0, positive unconditional: 36, negative: 1, negative conditional: 0, negative unconditional: 1, unknown: 280, unknown conditional: 2, unknown unconditional: 278] , Statistics on independence cache: Total cache size (in pairs): 280, Positive cache size: 274, Positive conditional cache size: 1, Positive unconditional cache size: 273, Negative cache size: 6, Negative conditional cache size: 1, Negative unconditional cache size: 5, Eliminated conditions: 0, Maximal queried relation: 1, Independence queries for same thread: 5 - DataRaceFoundResult [Line: 704]: Data race detected Data race detected The following path leads to a data race: [L697] 0 pthread_mutex_t lock; VAL [lock={3:0}] [L698] 0 pthread_cond_t cond; VAL [cond={4:0}, lock={3:0}] [L699] 0 int x; VAL [cond={4:0}, lock={3:0}, x=0] [L709] 0 pthread_t t; VAL [cond={4:0}, lock={3:0}, t={7:0}, x=0] [L712] FCALL, FORK 0 pthread_create( &t, ((void *)0), thread, ((void *)0) ) VAL [arg={0:0}, cond={4:0}, lock={3:0}, pthread_create( &t, ((void *)0), thread, ((void *)0) )=-1, t={7:0}, x=0] [L704] 1 x == 42 VAL [arg={0:0}, arg={0:0}, cond={4:0}, lock={3:0}, x=0] [L713] 0 int i = 0; VAL [arg={0:0}, arg={0:0}, cond={4:0}, i=0, lock={3:0}, t={7:0}, x=0] [L713] COND TRUE 0 i <= 42 VAL [arg={0:0}, arg={0:0}, cond={4:0}, i=0, lock={3:0}, t={7:0}, x=0] [L714] 0 x = i VAL [arg={0:0}, arg={0:0}, cond={4:0}, i=0, lock={3:0}, t={7:0}, x=0, x = i=119] [L704] 1 x == 42 VAL [arg={0:0}, arg={0:0}, cond={4:0}, lock={3:0}, x=0] Now there is a data race on ~x~0 between C: x = i [714] and C: x == 42 [704] - StatisticsResult: Ultimate Automizer benchmark data for errors in thread instance: threadThread1of1ForFork0 with 1 thread instances CFG has 3 procedures, 99 locations, 5 error locations. Started 1 CEGAR loops. OverallTime: 0.6s, OverallIterations: 2, TraceHistogramMax: 0, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.2s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=0occurred in iteration=0, InterpolantAutomatonStates: 3, 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, 107 NumberOfCodeBlocks, 107 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 49 ConstructedInterpolants, 0 QuantifiedInterpolants, 51 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! [2022-11-09 16:42:27,229 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 [2022-11-09 16:42:27,439 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...