/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 -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread-deagle/circular_buffer_bad.i -------------------------------------------------------------------------------- This is Ultimate 0.2.3-wip.dk.dpor-99e0210 [2023-03-23 20:41:21,799 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-03-23 20:41:21,801 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-03-23 20:41:21,833 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2023-03-23 20:41:21,876 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-03-23 20:41:21,878 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-03-23 20:41:21,878 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-03-23 20:41:21,879 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/gemcutter/NewStatesSleepPersistentFixedOrder.epf [2023-03-23 20:41:21,909 INFO L113 SettingsManager]: Loading preferences was successful [2023-03-23 20:41:21,909 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-03-23 20:41:21,909 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-03-23 20:41:21,910 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-03-23 20:41:21,910 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-03-23 20:41:21,910 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-03-23 20:41:21,911 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-03-23 20:41:21,911 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-03-23 20:41:21,911 INFO L138 SettingsManager]: * Use SBE=true [2023-03-23 20:41:21,911 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-03-23 20:41:21,911 INFO L138 SettingsManager]: * sizeof long=4 [2023-03-23 20:41:21,911 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-03-23 20:41:21,911 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-03-23 20:41:21,912 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-03-23 20:41:21,912 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-03-23 20:41:21,912 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-03-23 20:41:21,912 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-03-23 20:41:21,912 INFO L138 SettingsManager]: * sizeof long double=12 [2023-03-23 20:41:21,912 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-03-23 20:41:21,912 INFO L138 SettingsManager]: * Use constant arrays=true [2023-03-23 20:41:21,912 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-03-23 20:41:21,915 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-03-23 20:41:21,915 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-03-23 20:41:21,915 INFO L138 SettingsManager]: * To the following directory=./dump/ [2023-03-23 20:41:21,915 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-03-23 20:41:21,916 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-03-23 20:41:21,916 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-03-23 20:41:21,916 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-03-23 20:41:21,917 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-03-23 20:41:21,917 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-03-23 20:41:21,917 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-03-23 20:41:21,917 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-03-23 20:41:21,917 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2023-03-23 20:41:21,917 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-03-23 20:41:21,917 INFO L138 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE [2023-03-23 20:41:21,917 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2023-03-23 20:41:21,918 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-03-23 20:41:22,167 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-03-23 20:41:22,196 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-03-23 20:41:22,199 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-03-23 20:41:22,200 INFO L271 PluginConnector]: Initializing CDTParser... [2023-03-23 20:41:22,200 INFO L275 PluginConnector]: CDTParser initialized [2023-03-23 20:41:22,201 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-deagle/circular_buffer_bad.i [2023-03-23 20:41:23,392 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-03-23 20:41:23,689 INFO L351 CDTParser]: Found 1 translation units. [2023-03-23 20:41:23,689 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-deagle/circular_buffer_bad.i [2023-03-23 20:41:23,701 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/565a535f9/9998a1581a8942a29ec1abe37254d3a3/FLAG0e6f4092e [2023-03-23 20:41:23,716 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/565a535f9/9998a1581a8942a29ec1abe37254d3a3 [2023-03-23 20:41:23,719 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-03-23 20:41:23,720 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2023-03-23 20:41:23,721 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-03-23 20:41:23,721 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-03-23 20:41:23,725 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-03-23 20:41:23,726 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.03 08:41:23" (1/1) ... [2023-03-23 20:41:23,727 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1eac263d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.03 08:41:23, skipping insertion in model container [2023-03-23 20:41:23,727 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.03 08:41:23" (1/1) ... [2023-03-23 20:41:23,734 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-03-23 20:41:23,783 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-03-23 20:41:24,032 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-deagle/circular_buffer_bad.i[30440,30453] [2023-03-23 20:41:24,049 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-deagle/circular_buffer_bad.i[30895,30908] [2023-03-23 20:41:24,061 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-03-23 20:41:24,076 INFO L203 MainTranslator]: Completed pre-run [2023-03-23 20:41:24,135 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-deagle/circular_buffer_bad.i[30440,30453] [2023-03-23 20:41:24,138 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-deagle/circular_buffer_bad.i[30895,30908] [2023-03-23 20:41:24,145 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-03-23 20:41:24,187 INFO L208 MainTranslator]: Completed translation [2023-03-23 20:41:24,188 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.03 08:41:24 WrapperNode [2023-03-23 20:41:24,188 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-03-23 20:41:24,189 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-03-23 20:41:24,189 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-03-23 20:41:24,189 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-03-23 20:41:24,195 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.03 08:41:24" (1/1) ... [2023-03-23 20:41:24,213 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.03 08:41:24" (1/1) ... [2023-03-23 20:41:24,237 INFO L138 Inliner]: procedures = 168, calls = 36, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 135 [2023-03-23 20:41:24,238 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-03-23 20:41:24,239 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-03-23 20:41:24,239 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-03-23 20:41:24,239 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-03-23 20:41:24,247 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.03 08:41:24" (1/1) ... [2023-03-23 20:41:24,248 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.03 08:41:24" (1/1) ... [2023-03-23 20:41:24,251 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.03 08:41:24" (1/1) ... [2023-03-23 20:41:24,251 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.03 08:41:24" (1/1) ... [2023-03-23 20:41:24,269 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.03 08:41:24" (1/1) ... [2023-03-23 20:41:24,273 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.03 08:41:24" (1/1) ... [2023-03-23 20:41:24,275 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.03 08:41:24" (1/1) ... [2023-03-23 20:41:24,276 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.03 08:41:24" (1/1) ... [2023-03-23 20:41:24,279 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-03-23 20:41:24,280 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-03-23 20:41:24,280 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-03-23 20:41:24,280 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-03-23 20:41:24,281 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.03 08:41:24" (1/1) ... [2023-03-23 20:41:24,300 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-03-23 20:41:24,309 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-03-23 20:41:24,323 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) [2023-03-23 20:41:24,326 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 [2023-03-23 20:41:24,356 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-03-23 20:41:24,356 INFO L130 BoogieDeclarations]: Found specification of procedure t1 [2023-03-23 20:41:24,356 INFO L138 BoogieDeclarations]: Found implementation of procedure t1 [2023-03-23 20:41:24,356 INFO L130 BoogieDeclarations]: Found specification of procedure t2 [2023-03-23 20:41:24,356 INFO L138 BoogieDeclarations]: Found implementation of procedure t2 [2023-03-23 20:41:24,356 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-03-23 20:41:24,356 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-03-23 20:41:24,356 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-03-23 20:41:24,357 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-03-23 20:41:24,357 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-03-23 20:41:24,357 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-03-23 20:41:24,357 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-03-23 20:41:24,358 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-03-23 20:41:24,358 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-03-23 20:41:24,359 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-03-23 20:41:24,478 INFO L236 CfgBuilder]: Building ICFG [2023-03-23 20:41:24,480 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-03-23 20:41:24,878 INFO L277 CfgBuilder]: Performing block encoding [2023-03-23 20:41:24,885 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-03-23 20:41:24,885 INFO L302 CfgBuilder]: Removed 2 assume(true) statements. [2023-03-23 20:41:24,887 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.03 08:41:24 BoogieIcfgContainer [2023-03-23 20:41:24,887 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-03-23 20:41:24,888 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-03-23 20:41:24,888 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-03-23 20:41:24,891 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-03-23 20:41:24,891 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.03 08:41:23" (1/3) ... [2023-03-23 20:41:24,891 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7590cf72 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.03 08:41:24, skipping insertion in model container [2023-03-23 20:41:24,892 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.03 08:41:24" (2/3) ... [2023-03-23 20:41:24,892 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7590cf72 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.03 08:41:24, skipping insertion in model container [2023-03-23 20:41:24,892 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.03 08:41:24" (3/3) ... [2023-03-23 20:41:24,893 INFO L112 eAbstractionObserver]: Analyzing ICFG circular_buffer_bad.i [2023-03-23 20:41:24,900 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-03-23 20:41:24,908 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-03-23 20:41:24,909 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2023-03-23 20:41:24,909 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-03-23 20:41:25,010 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2023-03-23 20:41:25,052 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-03-23 20:41:25,052 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2023-03-23 20:41:25,053 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-03-23 20:41:25,061 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) [2023-03-23 20:41:25,066 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 [2023-03-23 20:41:25,093 INFO L159 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2023-03-23 20:41:25,102 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == t1Thread1of1ForFork1 ======== [2023-03-23 20:41:25,106 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;@5d7c196f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-03-23 20:41:25,106 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-03-23 20:41:27,678 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting t1Err0ASSERT_VIOLATIONERROR_FUNCTION === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-03-23 20:41:27,686 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-03-23 20:41:27,686 INFO L85 PathProgramCache]: Analyzing trace with hash 1608603305, now seen corresponding path program 1 times [2023-03-23 20:41:27,696 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-03-23 20:41:27,697 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1041861188] [2023-03-23 20:41:27,698 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-23 20:41:27,698 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-03-23 20:41:27,882 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-03-23 20:41:27,883 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1498432158] [2023-03-23 20:41:27,883 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-23 20:41:27,883 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-03-23 20:41:27,884 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-03-23 20:41:27,886 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-03-23 20:41:27,887 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-03-23 20:41:28,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-23 20:41:28,044 INFO L262 TraceCheckSpWp]: Trace formula consists of 417 conjuncts, 6 conjunts are in the unsatisfiable core [2023-03-23 20:41:28,052 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-03-23 20:41:28,114 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2023-03-23 20:41:28,183 INFO L134 CoverageAnalysis]: Checked inductivity of 102 backedges. 48 proven. 0 refuted. 0 times theorem prover too weak. 54 trivial. 0 not checked. [2023-03-23 20:41:28,183 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-03-23 20:41:28,184 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-03-23 20:41:28,184 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1041861188] [2023-03-23 20:41:28,184 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-03-23 20:41:28,184 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1498432158] [2023-03-23 20:41:28,185 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1498432158] provided 1 perfect and 0 imperfect interpolant sequences [2023-03-23 20:41:28,185 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-03-23 20:41:28,185 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-03-23 20:41:28,187 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [827308026] [2023-03-23 20:41:28,188 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-03-23 20:41:28,195 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-03-23 20:41:28,196 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-03-23 20:41:28,220 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-03-23 20:41:28,221 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-03-23 20:41:28,221 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-03-23 20:41:28,222 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-03-23 20:41:28,223 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 39.666666666666664) internal successors, (119), 3 states have internal predecessors, (119), 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) [2023-03-23 20:41:28,223 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-03-23 20:41:28,318 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-03-23 20:41:28,331 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-03-23 20:41:28,527 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2023-03-23 20:41:28,528 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting t1Err0ASSERT_VIOLATIONERROR_FUNCTION === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-03-23 20:41:28,528 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-03-23 20:41:28,528 INFO L85 PathProgramCache]: Analyzing trace with hash -1502090148, now seen corresponding path program 1 times [2023-03-23 20:41:28,528 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-03-23 20:41:28,529 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1241050357] [2023-03-23 20:41:28,529 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-23 20:41:28,529 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-03-23 20:41:28,595 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-03-23 20:41:28,596 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2022335729] [2023-03-23 20:41:28,596 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-23 20:41:28,596 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-03-23 20:41:28,596 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-03-23 20:41:28,597 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-03-23 20:41:28,623 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-03-23 20:41:28,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-23 20:41:28,708 INFO L262 TraceCheckSpWp]: Trace formula consists of 180 conjuncts, 4 conjunts are in the unsatisfiable core [2023-03-23 20:41:28,710 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-03-23 20:41:28,836 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-03-23 20:41:28,837 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-03-23 20:41:28,837 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-03-23 20:41:28,837 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1241050357] [2023-03-23 20:41:28,837 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-03-23 20:41:28,837 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2022335729] [2023-03-23 20:41:28,838 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2022335729] provided 1 perfect and 0 imperfect interpolant sequences [2023-03-23 20:41:28,838 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-03-23 20:41:28,838 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-03-23 20:41:28,838 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [254652600] [2023-03-23 20:41:28,838 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-03-23 20:41:28,839 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-03-23 20:41:28,839 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-03-23 20:41:28,840 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-03-23 20:41:28,840 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-03-23 20:41:28,840 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-03-23 20:41:28,841 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-03-23 20:41:28,841 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.75) internal successors, (59), 4 states have internal predecessors, (59), 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) [2023-03-23 20:41:28,841 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-03-23 20:41:28,841 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-03-23 20:41:31,278 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-03-23 20:41:31,279 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-03-23 20:41:31,283 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t1Err0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-03-23 20:41:31,293 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-03-23 20:41:31,490 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-03-23 20:41:31,496 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1] [2023-03-23 20:41:31,498 INFO L307 ceAbstractionStarter]: Result for error location t1Thread1of1ForFork1 was SAFE (1/3) [2023-03-23 20:41:31,503 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-03-23 20:41:31,503 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2023-03-23 20:41:31,503 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-03-23 20:41:31,504 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2023-03-23 20:41:31,512 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (5)] Waiting until timeout for monitored process [2023-03-23 20:41:31,512 INFO L159 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2023-03-23 20:41:31,513 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2023-03-23 20:41:31,513 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;@5d7c196f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-03-23 20:41:31,514 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2023-03-23 20:41:33,754 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 2 remaining) [2023-03-23 20:41:33,754 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 2 remaining) [2023-03-23 20:41:33,756 INFO L445 BasicCegarLoop]: Path program histogram: [] [2023-03-23 20:41:33,757 INFO L307 ceAbstractionStarter]: Result for error location ULTIMATE.start was SAFE,SAFE (2/3) [2023-03-23 20:41:33,763 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-03-23 20:41:33,763 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2023-03-23 20:41:33,764 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-03-23 20:41:33,766 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2023-03-23 20:41:33,773 INFO L159 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2023-03-23 20:41:33,774 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == t2Thread1of1ForFork0 ======== [2023-03-23 20:41:33,774 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;@5d7c196f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-03-23 20:41:33,774 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-03-23 20:41:33,791 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (6)] Waiting until timeout for monitored process [2023-03-23 20:41:34,990 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting t2Err0ASSERT_VIOLATIONERROR_FUNCTION === [t2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-03-23 20:41:34,990 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-03-23 20:41:34,991 INFO L85 PathProgramCache]: Analyzing trace with hash 1436461960, now seen corresponding path program 1 times [2023-03-23 20:41:34,991 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-03-23 20:41:34,991 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2078242226] [2023-03-23 20:41:34,991 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-23 20:41:34,991 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-03-23 20:41:35,039 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-03-23 20:41:35,039 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1033977120] [2023-03-23 20:41:35,039 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-23 20:41:35,040 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-03-23 20:41:35,040 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-03-23 20:41:35,043 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-03-23 20:41:35,068 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-03-23 20:41:35,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-23 20:41:35,204 INFO L262 TraceCheckSpWp]: Trace formula consists of 396 conjuncts, 6 conjunts are in the unsatisfiable core [2023-03-23 20:41:35,216 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-03-23 20:41:35,232 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2023-03-23 20:41:35,281 INFO L134 CoverageAnalysis]: Checked inductivity of 117 backedges. 54 proven. 0 refuted. 0 times theorem prover too weak. 63 trivial. 0 not checked. [2023-03-23 20:41:35,281 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-03-23 20:41:35,281 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-03-23 20:41:35,281 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2078242226] [2023-03-23 20:41:35,281 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-03-23 20:41:35,282 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1033977120] [2023-03-23 20:41:35,282 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1033977120] provided 1 perfect and 0 imperfect interpolant sequences [2023-03-23 20:41:35,282 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-03-23 20:41:35,282 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-03-23 20:41:35,282 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [283861891] [2023-03-23 20:41:35,282 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-03-23 20:41:35,284 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-03-23 20:41:35,284 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-03-23 20:41:35,286 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-03-23 20:41:35,286 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-03-23 20:41:35,286 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-03-23 20:41:35,286 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-03-23 20:41:35,287 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 3 states have internal predecessors, (121), 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) [2023-03-23 20:41:35,287 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-03-23 20:41:35,321 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-03-23 20:41:35,327 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2023-03-23 20:41:35,527 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-03-23 20:41:35,527 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting t2Err0ASSERT_VIOLATIONERROR_FUNCTION === [t2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-03-23 20:41:35,528 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-03-23 20:41:35,528 INFO L85 PathProgramCache]: Analyzing trace with hash -788949371, now seen corresponding path program 1 times [2023-03-23 20:41:35,528 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-03-23 20:41:35,528 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [244109918] [2023-03-23 20:41:35,528 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-23 20:41:35,529 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-03-23 20:41:35,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-23 20:41:35,749 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-03-23 20:41:35,750 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-03-23 20:41:35,750 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [244109918] [2023-03-23 20:41:35,750 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [244109918] provided 1 perfect and 0 imperfect interpolant sequences [2023-03-23 20:41:35,750 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-03-23 20:41:35,750 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-03-23 20:41:35,750 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [588705708] [2023-03-23 20:41:35,750 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-03-23 20:41:35,751 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-03-23 20:41:35,751 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-03-23 20:41:35,751 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-03-23 20:41:35,752 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-03-23 20:41:35,752 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-03-23 20:41:35,752 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-03-23 20:41:35,752 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 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) [2023-03-23 20:41:35,752 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-03-23 20:41:35,752 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-03-23 20:41:35,792 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-03-23 20:41:35,792 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-03-23 20:41:35,793 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-03-23 20:41:35,793 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting t2Err0ASSERT_VIOLATIONERROR_FUNCTION === [t2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-03-23 20:41:35,793 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-03-23 20:41:35,793 INFO L85 PathProgramCache]: Analyzing trace with hash -1156773055, now seen corresponding path program 1 times [2023-03-23 20:41:35,794 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-03-23 20:41:35,794 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [318583698] [2023-03-23 20:41:35,794 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-23 20:41:35,794 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-03-23 20:41:35,823 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-03-23 20:41:35,824 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [635290293] [2023-03-23 20:41:35,824 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-23 20:41:35,824 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-03-23 20:41:35,824 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-03-23 20:41:35,825 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-03-23 20:41:35,828 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2023-03-23 20:41:36,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-23 20:41:36,126 INFO L262 TraceCheckSpWp]: Trace formula consists of 265 conjuncts, 32 conjunts are in the unsatisfiable core [2023-03-23 20:41:36,130 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-03-23 20:41:36,151 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 6 [2023-03-23 20:41:36,268 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2023-03-23 20:41:36,269 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2023-03-23 20:41:36,296 INFO L321 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2023-03-23 20:41:36,297 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2023-03-23 20:41:36,392 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 15 [2023-03-23 20:41:36,437 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 15 [2023-03-23 20:41:36,621 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 51 treesize of output 44 [2023-03-23 20:41:36,763 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 51 treesize of output 45 [2023-03-23 20:41:36,923 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-03-23 20:41:36,923 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-03-23 20:41:36,923 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-03-23 20:41:36,923 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [318583698] [2023-03-23 20:41:36,924 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-03-23 20:41:36,924 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [635290293] [2023-03-23 20:41:36,924 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [635290293] provided 1 perfect and 0 imperfect interpolant sequences [2023-03-23 20:41:36,924 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-03-23 20:41:36,924 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2023-03-23 20:41:36,924 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1988611527] [2023-03-23 20:41:36,924 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-03-23 20:41:36,925 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2023-03-23 20:41:36,925 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-03-23 20:41:36,926 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2023-03-23 20:41:36,926 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=186, Unknown=0, NotChecked=0, Total=240 [2023-03-23 20:41:36,926 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-03-23 20:41:36,926 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-03-23 20:41:36,926 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 5.9375) internal successors, (95), 16 states have internal predecessors, (95), 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) [2023-03-23 20:41:36,926 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-03-23 20:41:36,926 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-03-23 20:41:36,927 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-03-23 20:41:37,179 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-03-23 20:41:37,180 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-03-23 20:41:37,180 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-03-23 20:41:37,187 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2023-03-23 20:41:37,381 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-03-23 20:41:37,381 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting t2Err0ASSERT_VIOLATIONERROR_FUNCTION === [t2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-03-23 20:41:37,382 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-03-23 20:41:37,382 INFO L85 PathProgramCache]: Analyzing trace with hash 1189687894, now seen corresponding path program 1 times [2023-03-23 20:41:37,382 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-03-23 20:41:37,382 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [790148270] [2023-03-23 20:41:37,382 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-23 20:41:37,382 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-03-23 20:41:37,411 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-03-23 20:41:37,412 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [373051188] [2023-03-23 20:41:37,412 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-23 20:41:37,412 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-03-23 20:41:37,412 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-03-23 20:41:37,413 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-03-23 20:41:37,416 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2023-03-23 20:41:37,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-03-23 20:41:37,716 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-03-23 20:41:37,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-03-23 20:41:37,853 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-03-23 20:41:37,853 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-03-23 20:41:37,853 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location t2Err0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-03-23 20:41:37,863 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2023-03-23 20:41:38,060 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2023-03-23 20:41:38,062 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2023-03-23 20:41:38,062 INFO L307 ceAbstractionStarter]: Result for error location t2Thread1of1ForFork0 was UNSAFE (3/3) [2023-03-23 20:41:38,065 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-03-23 20:41:38,065 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-03-23 20:41:38,157 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.03 08:41:38 BasicIcfg [2023-03-23 20:41:38,157 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-03-23 20:41:38,157 INFO L158 Benchmark]: Toolchain (without parser) took 14437.66ms. Allocated memory was 275.8MB in the beginning and 331.4MB in the end (delta: 55.6MB). Free memory was 226.4MB in the beginning and 179.6MB in the end (delta: 46.8MB). Peak memory consumption was 103.1MB. Max. memory is 8.0GB. [2023-03-23 20:41:38,158 INFO L158 Benchmark]: CDTParser took 0.19ms. Allocated memory is still 177.2MB. Free memory was 127.1MB in the beginning and 126.9MB in the end (delta: 176.2kB). There was no memory consumed. Max. memory is 8.0GB. [2023-03-23 20:41:38,158 INFO L158 Benchmark]: CACSL2BoogieTranslator took 467.08ms. Allocated memory is still 275.8MB. Free memory was 226.1MB in the beginning and 206.2MB in the end (delta: 19.9MB). Peak memory consumption was 19.9MB. Max. memory is 8.0GB. [2023-03-23 20:41:38,158 INFO L158 Benchmark]: Boogie Procedure Inliner took 48.97ms. Allocated memory is still 275.8MB. Free memory was 206.2MB in the beginning and 203.7MB in the end (delta: 2.4MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. [2023-03-23 20:41:38,158 INFO L158 Benchmark]: Boogie Preprocessor took 40.89ms. Allocated memory is still 275.8MB. Free memory was 203.7MB in the beginning and 202.0MB in the end (delta: 1.7MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2023-03-23 20:41:38,158 INFO L158 Benchmark]: RCFGBuilder took 606.61ms. Allocated memory is still 275.8MB. Free memory was 202.0MB in the beginning and 240.6MB in the end (delta: -38.7MB). Peak memory consumption was 22.1MB. Max. memory is 8.0GB. [2023-03-23 20:41:38,159 INFO L158 Benchmark]: TraceAbstraction took 13268.58ms. Allocated memory was 275.8MB in the beginning and 331.4MB in the end (delta: 55.6MB). Free memory was 239.6MB in the beginning and 179.6MB in the end (delta: 60.0MB). Peak memory consumption was 115.6MB. Max. memory is 8.0GB. [2023-03-23 20:41:38,160 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19ms. Allocated memory is still 177.2MB. Free memory was 127.1MB in the beginning and 126.9MB in the end (delta: 176.2kB). There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 467.08ms. Allocated memory is still 275.8MB. Free memory was 226.1MB in the beginning and 206.2MB in the end (delta: 19.9MB). Peak memory consumption was 19.9MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 48.97ms. Allocated memory is still 275.8MB. Free memory was 206.2MB in the beginning and 203.7MB in the end (delta: 2.4MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 40.89ms. Allocated memory is still 275.8MB. Free memory was 203.7MB in the beginning and 202.0MB in the end (delta: 1.7MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 606.61ms. Allocated memory is still 275.8MB. Free memory was 202.0MB in the beginning and 240.6MB in the end (delta: -38.7MB). Peak memory consumption was 22.1MB. Max. memory is 8.0GB. * TraceAbstraction took 13268.58ms. Allocated memory was 275.8MB in the beginning and 331.4MB in the end (delta: 55.6MB). Free memory was 239.6MB in the beginning and 179.6MB in the end (delta: 60.0MB). Peak memory consumption was 115.6MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Independence relation #1 benchmarks ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 8354, independent: 8018, independent conditional: 2554, independent unconditional: 5464, dependent: 332, dependent conditional: 311, dependent unconditional: 21, unknown: 4, unknown conditional: 2, unknown unconditional: 2] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 8062, independent: 8018, independent conditional: 2554, independent unconditional: 5464, dependent: 40, dependent conditional: 19, dependent unconditional: 21, unknown: 4, unknown conditional: 2, unknown unconditional: 2] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 8062, independent: 8018, independent conditional: 2554, independent unconditional: 5464, dependent: 40, dependent conditional: 19, dependent unconditional: 21, unknown: 4, unknown conditional: 2, unknown unconditional: 2] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 8104, independent: 8018, independent conditional: 12, independent unconditional: 8006, dependent: 78, dependent conditional: 26, dependent unconditional: 52, unknown: 8, unknown conditional: 4, unknown unconditional: 4] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 8104, independent: 8018, independent conditional: 12, independent unconditional: 8006, dependent: 78, dependent conditional: 13, dependent unconditional: 65, unknown: 8, unknown conditional: 2, unknown unconditional: 6] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 8104, independent: 8018, independent conditional: 12, independent unconditional: 8006, dependent: 78, dependent conditional: 13, dependent unconditional: 65, unknown: 8, unknown conditional: 2, unknown unconditional: 6] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 3818, independent: 3788, independent conditional: 1, independent unconditional: 3787, dependent: 26, dependent conditional: 5, dependent unconditional: 21, unknown: 4, unknown conditional: 2, unknown unconditional: 2] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 3818, independent: 3779, independent conditional: 0, independent unconditional: 3779, dependent: 39, dependent conditional: 0, dependent unconditional: 39, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Independence Queries: [ total: 39, independent: 9, independent conditional: 1, independent unconditional: 8, dependent: 26, dependent conditional: 5, dependent unconditional: 21, unknown: 4, unknown conditional: 2, unknown unconditional: 2] , ProtectedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 39, independent: 9, independent conditional: 1, independent unconditional: 8, dependent: 26, dependent conditional: 5, dependent unconditional: 21, unknown: 4, unknown conditional: 2, unknown unconditional: 2] , SemanticIndependenceRelation.Query Time [ms]: [ total: 4610, independent: 69, independent conditional: 5, independent unconditional: 64, dependent: 230, dependent conditional: 58, dependent unconditional: 172, unknown: 4311, unknown conditional: 2154, unknown unconditional: 2157] , Protected Queries: 0 ], Cache Queries: [ total: 8104, independent: 4230, independent conditional: 11, independent unconditional: 4219, dependent: 52, dependent conditional: 8, dependent unconditional: 44, unknown: 3822, unknown conditional: 8, unknown unconditional: 3814] , Statistics on independence cache: Total cache size (in pairs): 3814, Positive cache size: 3788, Positive conditional cache size: 1, Positive unconditional cache size: 3787, Negative cache size: 26, Negative conditional cache size: 5, Negative unconditional cache size: 21, Unknown cache size: 4, Unknown conditional cache size: 2, Unknown unconditional cache size: 2, Eliminated conditions: 15, Maximal queried relation: 2, Independence queries for same thread: 292 - StatisticsResult: Persistent set benchmarks Persistent set computation time: 2.5s, Number of persistent set computation: 620, Number of trivial persistent sets: 427, Underlying independence relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 5487, independent: 5464, independent conditional: 0, independent unconditional: 5464, dependent: 21, dependent conditional: 0, dependent unconditional: 21, unknown: 2, unknown conditional: 0, unknown unconditional: 2] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 8354, independent: 8018, independent conditional: 2554, independent unconditional: 5464, dependent: 332, dependent conditional: 311, dependent unconditional: 21, unknown: 4, unknown conditional: 2, unknown unconditional: 2] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 8062, independent: 8018, independent conditional: 2554, independent unconditional: 5464, dependent: 40, dependent conditional: 19, dependent unconditional: 21, unknown: 4, unknown conditional: 2, unknown unconditional: 2] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 8062, independent: 8018, independent conditional: 2554, independent unconditional: 5464, dependent: 40, dependent conditional: 19, dependent unconditional: 21, unknown: 4, unknown conditional: 2, unknown unconditional: 2] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 8104, independent: 8018, independent conditional: 12, independent unconditional: 8006, dependent: 78, dependent conditional: 26, dependent unconditional: 52, unknown: 8, unknown conditional: 4, unknown unconditional: 4] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 8104, independent: 8018, independent conditional: 12, independent unconditional: 8006, dependent: 78, dependent conditional: 13, dependent unconditional: 65, unknown: 8, unknown conditional: 2, unknown unconditional: 6] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 8104, independent: 8018, independent conditional: 12, independent unconditional: 8006, dependent: 78, dependent conditional: 13, dependent unconditional: 65, unknown: 8, unknown conditional: 2, unknown unconditional: 6] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 3818, independent: 3788, independent conditional: 1, independent unconditional: 3787, dependent: 26, dependent conditional: 5, dependent unconditional: 21, unknown: 4, unknown conditional: 2, unknown unconditional: 2] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 3818, independent: 3779, independent conditional: 0, independent unconditional: 3779, dependent: 39, dependent conditional: 0, dependent unconditional: 39, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Independence Queries: [ total: 39, independent: 9, independent conditional: 1, independent unconditional: 8, dependent: 26, dependent conditional: 5, dependent unconditional: 21, unknown: 4, unknown conditional: 2, unknown unconditional: 2] , ProtectedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 39, independent: 9, independent conditional: 1, independent unconditional: 8, dependent: 26, dependent conditional: 5, dependent unconditional: 21, unknown: 4, unknown conditional: 2, unknown unconditional: 2] , SemanticIndependenceRelation.Query Time [ms]: [ total: 4610, independent: 69, independent conditional: 5, independent unconditional: 64, dependent: 230, dependent conditional: 58, dependent unconditional: 172, unknown: 4311, unknown conditional: 2154, unknown unconditional: 2157] , Protected Queries: 0 ], Cache Queries: [ total: 8104, independent: 4230, independent conditional: 11, independent unconditional: 4219, dependent: 52, dependent conditional: 8, dependent unconditional: 44, unknown: 3822, unknown conditional: 8, unknown unconditional: 3814] , Statistics on independence cache: Total cache size (in pairs): 3814, Positive cache size: 3788, Positive conditional cache size: 1, Positive unconditional cache size: 3787, Negative cache size: 26, Negative conditional cache size: 5, Negative unconditional cache size: 21, Unknown cache size: 4, Unknown conditional cache size: 2, Unknown unconditional cache size: 2, Eliminated conditions: 15, Maximal queried relation: 2, Independence queries for same thread: 292 - StatisticsResult: Independence relation #1 benchmarks ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 2197, independent: 2178, independent conditional: 40, independent unconditional: 2138, dependent: 16, dependent conditional: 7, dependent unconditional: 9, unknown: 3, unknown conditional: 1, unknown unconditional: 2] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 2190, independent: 2178, independent conditional: 40, independent unconditional: 2138, dependent: 9, dependent conditional: 0, dependent unconditional: 9, unknown: 3, unknown conditional: 1, unknown unconditional: 2] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 2190, independent: 2178, independent conditional: 40, independent unconditional: 2138, dependent: 9, dependent conditional: 0, dependent unconditional: 9, unknown: 3, unknown conditional: 1, unknown unconditional: 2] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 2190, independent: 2178, independent conditional: 0, independent unconditional: 2178, dependent: 9, dependent conditional: 0, dependent unconditional: 9, unknown: 3, unknown conditional: 0, unknown unconditional: 3] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 2190, independent: 2178, independent conditional: 0, independent unconditional: 2178, dependent: 9, dependent conditional: 0, dependent unconditional: 9, unknown: 3, unknown conditional: 0, unknown unconditional: 3] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 2190, independent: 2178, independent conditional: 0, independent unconditional: 2178, dependent: 9, dependent conditional: 0, dependent unconditional: 9, unknown: 3, unknown conditional: 0, unknown unconditional: 3] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 2063, independent: 2052, independent conditional: 0, independent unconditional: 2052, dependent: 9, dependent conditional: 0, dependent unconditional: 9, unknown: 2, unknown conditional: 0, unknown unconditional: 2] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 2063, independent: 2049, independent conditional: 0, independent unconditional: 2049, dependent: 14, dependent conditional: 0, dependent unconditional: 14, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Independence Queries: [ total: 14, independent: 3, independent conditional: 0, independent unconditional: 3, dependent: 9, dependent conditional: 0, dependent unconditional: 9, unknown: 2, unknown conditional: 0, unknown unconditional: 2] , ProtectedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 14, independent: 3, independent conditional: 0, independent unconditional: 3, dependent: 9, dependent conditional: 0, dependent unconditional: 9, unknown: 2, unknown conditional: 0, unknown unconditional: 2] , SemanticIndependenceRelation.Query Time [ms]: [ total: 2220, independent: 28, independent conditional: 0, independent unconditional: 28, dependent: 78, dependent conditional: 0, dependent unconditional: 78, unknown: 2114, unknown conditional: 0, unknown unconditional: 2114] , Protected Queries: 0 ], Cache Queries: [ total: 2190, independent: 126, independent conditional: 0, independent unconditional: 126, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 2064, unknown conditional: 0, unknown unconditional: 2064] , Statistics on independence cache: Total cache size (in pairs): 2061, Positive cache size: 2052, Positive conditional cache size: 0, Positive unconditional cache size: 2052, Negative cache size: 9, Negative conditional cache size: 0, Negative unconditional cache size: 9, Unknown cache size: 2, Unknown conditional cache size: 0, Unknown unconditional cache size: 2, Eliminated conditions: 0, Maximal queried relation: 0, Independence queries for same thread: 7 - StatisticsResult: Persistent set benchmarks Persistent set computation time: 2.2s, Number of persistent set computation: 79, Number of trivial persistent sets: 72, Underlying independence relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 2149, independent: 2138, independent conditional: 0, independent unconditional: 2138, dependent: 9, dependent conditional: 0, dependent unconditional: 9, unknown: 2, unknown conditional: 0, unknown unconditional: 2] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 2197, independent: 2178, independent conditional: 40, independent unconditional: 2138, dependent: 16, dependent conditional: 7, dependent unconditional: 9, unknown: 3, unknown conditional: 1, unknown unconditional: 2] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 2190, independent: 2178, independent conditional: 40, independent unconditional: 2138, dependent: 9, dependent conditional: 0, dependent unconditional: 9, unknown: 3, unknown conditional: 1, unknown unconditional: 2] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 2190, independent: 2178, independent conditional: 40, independent unconditional: 2138, dependent: 9, dependent conditional: 0, dependent unconditional: 9, unknown: 3, unknown conditional: 1, unknown unconditional: 2] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 2190, independent: 2178, independent conditional: 0, independent unconditional: 2178, dependent: 9, dependent conditional: 0, dependent unconditional: 9, unknown: 3, unknown conditional: 0, unknown unconditional: 3] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 2190, independent: 2178, independent conditional: 0, independent unconditional: 2178, dependent: 9, dependent conditional: 0, dependent unconditional: 9, unknown: 3, unknown conditional: 0, unknown unconditional: 3] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 2190, independent: 2178, independent conditional: 0, independent unconditional: 2178, dependent: 9, dependent conditional: 0, dependent unconditional: 9, unknown: 3, unknown conditional: 0, unknown unconditional: 3] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 2063, independent: 2052, independent conditional: 0, independent unconditional: 2052, dependent: 9, dependent conditional: 0, dependent unconditional: 9, unknown: 2, unknown conditional: 0, unknown unconditional: 2] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 2063, independent: 2049, independent conditional: 0, independent unconditional: 2049, dependent: 14, dependent conditional: 0, dependent unconditional: 14, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Independence Queries: [ total: 14, independent: 3, independent conditional: 0, independent unconditional: 3, dependent: 9, dependent conditional: 0, dependent unconditional: 9, unknown: 2, unknown conditional: 0, unknown unconditional: 2] , ProtectedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 14, independent: 3, independent conditional: 0, independent unconditional: 3, dependent: 9, dependent conditional: 0, dependent unconditional: 9, unknown: 2, unknown conditional: 0, unknown unconditional: 2] , SemanticIndependenceRelation.Query Time [ms]: [ total: 2220, independent: 28, independent conditional: 0, independent unconditional: 28, dependent: 78, dependent conditional: 0, dependent unconditional: 78, unknown: 2114, unknown conditional: 0, unknown unconditional: 2114] , Protected Queries: 0 ], Cache Queries: [ total: 2190, independent: 126, independent conditional: 0, independent unconditional: 126, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 2064, unknown conditional: 0, unknown unconditional: 2064] , Statistics on independence cache: Total cache size (in pairs): 2061, Positive cache size: 2052, Positive conditional cache size: 0, Positive unconditional cache size: 2052, Negative cache size: 9, Negative conditional cache size: 0, Negative unconditional cache size: 9, Unknown cache size: 2, Unknown conditional cache size: 0, Unknown unconditional cache size: 2, Eliminated conditions: 0, Maximal queried relation: 0, Independence queries for same thread: 7 - StatisticsResult: Independence relation #1 benchmarks ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 6069, independent: 5885, independent conditional: 1073, independent unconditional: 4812, dependent: 183, dependent conditional: 164, dependent unconditional: 19, unknown: 1, unknown conditional: 0, unknown unconditional: 1] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 5914, independent: 5885, independent conditional: 1073, independent unconditional: 4812, dependent: 28, dependent conditional: 9, dependent unconditional: 19, unknown: 1, unknown conditional: 0, unknown unconditional: 1] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 5914, independent: 5885, independent conditional: 1073, independent unconditional: 4812, dependent: 28, dependent conditional: 9, dependent unconditional: 19, unknown: 1, unknown conditional: 0, unknown unconditional: 1] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 5947, independent: 5885, independent conditional: 13, independent unconditional: 5872, dependent: 61, dependent conditional: 20, dependent unconditional: 41, unknown: 1, unknown conditional: 0, unknown unconditional: 1] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 5947, independent: 5885, independent conditional: 13, independent unconditional: 5872, dependent: 61, dependent conditional: 3, dependent unconditional: 58, unknown: 1, unknown conditional: 0, unknown unconditional: 1] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 5947, independent: 5885, independent conditional: 13, independent unconditional: 5872, dependent: 61, dependent conditional: 3, dependent unconditional: 58, unknown: 1, unknown conditional: 0, unknown unconditional: 1] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 3351, independent: 3330, independent conditional: 1, independent unconditional: 3329, dependent: 20, dependent conditional: 1, dependent unconditional: 19, unknown: 1, unknown conditional: 0, unknown unconditional: 1] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 3351, independent: 3321, independent conditional: 0, independent unconditional: 3321, dependent: 30, dependent conditional: 0, dependent unconditional: 30, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Independence Queries: [ total: 30, independent: 9, independent conditional: 1, independent unconditional: 8, dependent: 20, dependent conditional: 1, dependent unconditional: 19, unknown: 1, unknown conditional: 0, unknown unconditional: 1] , ProtectedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 30, independent: 9, independent conditional: 1, independent unconditional: 8, dependent: 20, dependent conditional: 1, dependent unconditional: 19, unknown: 1, unknown conditional: 0, unknown unconditional: 1] , SemanticIndependenceRelation.Query Time [ms]: [ total: 1184, independent: 54, independent conditional: 2, independent unconditional: 52, dependent: 70, dependent conditional: 2, dependent unconditional: 68, unknown: 1061, unknown conditional: 0, unknown unconditional: 1061] , Protected Queries: 0 ], Cache Queries: [ total: 5947, independent: 2555, independent conditional: 12, independent unconditional: 2543, dependent: 41, dependent conditional: 2, dependent unconditional: 39, unknown: 3351, unknown conditional: 2, unknown unconditional: 3349] , Statistics on independence cache: Total cache size (in pairs): 3350, Positive cache size: 3330, Positive conditional cache size: 1, Positive unconditional cache size: 3329, Negative cache size: 20, Negative conditional cache size: 1, Negative unconditional cache size: 19, Unknown cache size: 1, Unknown conditional cache size: 0, Unknown unconditional cache size: 1, Eliminated conditions: 17, Maximal queried relation: 3, Independence queries for same thread: 155 - StatisticsResult: Persistent set benchmarks Persistent set computation time: 1.2s, Number of persistent set computation: 312, Number of trivial persistent sets: 201, Underlying independence relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 4832, independent: 4812, independent conditional: 0, independent unconditional: 4812, dependent: 19, dependent conditional: 0, dependent unconditional: 19, unknown: 1, unknown conditional: 0, unknown unconditional: 1] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 6069, independent: 5885, independent conditional: 1073, independent unconditional: 4812, dependent: 183, dependent conditional: 164, dependent unconditional: 19, unknown: 1, unknown conditional: 0, unknown unconditional: 1] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 5914, independent: 5885, independent conditional: 1073, independent unconditional: 4812, dependent: 28, dependent conditional: 9, dependent unconditional: 19, unknown: 1, unknown conditional: 0, unknown unconditional: 1] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 5914, independent: 5885, independent conditional: 1073, independent unconditional: 4812, dependent: 28, dependent conditional: 9, dependent unconditional: 19, unknown: 1, unknown conditional: 0, unknown unconditional: 1] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 5947, independent: 5885, independent conditional: 13, independent unconditional: 5872, dependent: 61, dependent conditional: 20, dependent unconditional: 41, unknown: 1, unknown conditional: 0, unknown unconditional: 1] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 5947, independent: 5885, independent conditional: 13, independent unconditional: 5872, dependent: 61, dependent conditional: 3, dependent unconditional: 58, unknown: 1, unknown conditional: 0, unknown unconditional: 1] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 5947, independent: 5885, independent conditional: 13, independent unconditional: 5872, dependent: 61, dependent conditional: 3, dependent unconditional: 58, unknown: 1, unknown conditional: 0, unknown unconditional: 1] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 3351, independent: 3330, independent conditional: 1, independent unconditional: 3329, dependent: 20, dependent conditional: 1, dependent unconditional: 19, unknown: 1, unknown conditional: 0, unknown unconditional: 1] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 3351, independent: 3321, independent conditional: 0, independent unconditional: 3321, dependent: 30, dependent conditional: 0, dependent unconditional: 30, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Independence Queries: [ total: 30, independent: 9, independent conditional: 1, independent unconditional: 8, dependent: 20, dependent conditional: 1, dependent unconditional: 19, unknown: 1, unknown conditional: 0, unknown unconditional: 1] , ProtectedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 30, independent: 9, independent conditional: 1, independent unconditional: 8, dependent: 20, dependent conditional: 1, dependent unconditional: 19, unknown: 1, unknown conditional: 0, unknown unconditional: 1] , SemanticIndependenceRelation.Query Time [ms]: [ total: 1184, independent: 54, independent conditional: 2, independent unconditional: 52, dependent: 70, dependent conditional: 2, dependent unconditional: 68, unknown: 1061, unknown conditional: 0, unknown unconditional: 1061] , Protected Queries: 0 ], Cache Queries: [ total: 5947, independent: 2555, independent conditional: 12, independent unconditional: 2543, dependent: 41, dependent conditional: 2, dependent unconditional: 39, unknown: 3351, unknown conditional: 2, unknown unconditional: 3349] , Statistics on independence cache: Total cache size (in pairs): 3350, Positive cache size: 3330, Positive conditional cache size: 1, Positive unconditional cache size: 3329, Negative cache size: 20, Negative conditional cache size: 1, Negative unconditional cache size: 19, Unknown cache size: 1, Unknown conditional cache size: 0, Unknown unconditional cache size: 1, Eliminated conditions: 17, Maximal queried relation: 3, Independence queries for same thread: 155 - PositiveResult [Line: 713]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - CounterExampleResult [Line: 746]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L682] 0 static char buffer[10]; VAL [buffer={3:0}] [L683] 0 static unsigned int first; VAL [buffer={3:0}, first=0] [L684] 0 static unsigned int next; VAL [buffer={3:0}, first=0, next=0] [L685] 0 static int buffer_size; VAL [buffer={3:0}, buffer_size=0, first=0, next=0] [L686] 0 _Bool send, receive; VAL [buffer={3:0}, buffer_size=0, first=0, next=0, receive=0, send=0] [L687] 0 pthread_mutex_t m; VAL [buffer={3:0}, buffer_size=0, first=0, m={4:0}, next=0, receive=0, send=0] [L756] 0 pthread_t id1, id2; VAL [buffer={3:0}, buffer_size=0, first=0, id1={6:0}, id2={5:0}, m={4:0}, next=0, receive=0, send=0] [L758] CALL 0 initLog(10) [L690] 0 buffer_size = max VAL [\old(max)=10, buffer={3:0}, buffer_size=10, first=0, m={4:0}, max=10, next=0, receive=0, send=0] [L691] EXPR 0 next = 0 VAL [\old(max)=10, buffer={3:0}, buffer_size=10, first=0, m={4:0}, max=10, next=0, receive=0, send=0] [L691] 0 first = next = 0 VAL [\old(max)=10, buffer={3:0}, buffer_size=10, first=0, m={4:0}, max=10, next=0, receive=0, send=0] [L758] RET 0 initLog(10) [L759] 0 send=1 VAL [buffer={3:0}, buffer_size=10, first=0, id1={6:0}, id2={5:0}, m={4:0}, next=0, receive=0, send=1] [L760] 0 receive=0 VAL [buffer={3:0}, buffer_size=10, first=0, id1={6:0}, id2={5:0}, m={4:0}, next=0, receive=0, send=1] [L761] FCALL, FORK 0 pthread_create(&id1, ((void *)0), t1, ((void *)0)) VAL [buffer={3:0}, buffer_size=10, first=0, id1={6:0}, id2={5:0}, m={4:0}, next=0, pthread_create(&id1, ((void *)0), t1, ((void *)0))=2, receive=0, send=1] [L762] FCALL, FORK 0 pthread_create(&id2, ((void *)0), t2, ((void *)0)) VAL [buffer={3:0}, buffer_size=10, first=0, id1={6:0}, id2={5:0}, m={4:0}, next=0, pthread_create(&id2, ((void *)0), t2, ((void *)0))=3, receive=0, send=1] [L739] 2 int i; VAL [arg={0:0}, arg={0:0}, buffer={3:0}, buffer_size=10, first=0, m={4:0}, next=0, receive=0, send=1] [L740] 2 i=0 VAL [arg={0:0}, arg={0:0}, buffer={3:0}, buffer_size=10, first=0, i=0, m={4:0}, next=0, receive=0, send=1] [L740] COND TRUE 2 i<7 VAL [arg={0:0}, arg={0:0}, buffer={3:0}, buffer_size=10, first=0, i=0, m={4:0}, next=0, receive=0, send=1] [L743] COND FALSE 2 !(\read(receive)) VAL [arg={0:0}, arg={0:0}, buffer={3:0}, buffer_size=10, first=0, i=0, m={4:0}, next=0, receive=0, send=1] [L740] 2 i++ VAL [arg={0:0}, arg={0:0}, buffer={3:0}, buffer_size=10, first=0, i=1, m={4:0}, next=0, receive=0, send=1] [L740] COND TRUE 2 i<7 VAL [arg={0:0}, arg={0:0}, buffer={3:0}, buffer_size=10, first=0, i=1, m={4:0}, next=0, receive=0, send=1] [L763] 0 \read(id1) VAL [\read(id1)=2, buffer={3:0}, buffer_size=10, first=0, id1={6:0}, id2={5:0}, m={4:0}, next=0, receive=0, send=1] [L723] 1 int i; VAL [arg={0:0}, arg={0:0}, buffer={3:0}, buffer_size=10, first=0, m={4:0}, next=0, receive=0, send=1] [L724] 1 i=0 VAL [arg={0:0}, arg={0:0}, buffer={3:0}, buffer_size=10, first=0, i=0, m={4:0}, next=0, receive=0, send=1] [L724] COND TRUE 1 i<7 VAL [arg={0:0}, arg={0:0}, buffer={3:0}, buffer_size=10, first=0, i=0, m={4:0}, next=0, receive=0, send=1] [L727] COND TRUE 1 \read(send) [L729] CALL 1 insertLogElement(i) [L707] COND TRUE 1 next < buffer_size && buffer_size > 0 VAL [\old(b)=0, b=0, buffer={3:0}, buffer_size=10, first=0, m={4:0}, next=0, receive=0, send=1] [L709] 1 buffer[next] = b VAL [\old(b)=0, b=0, buffer={3:0}, buffer_size=10, first=0, m={4:0}, next=0, receive=0, send=1] [L710] 1 next = (next+1)%buffer_size VAL [\old(b)=0, b=0, buffer={3:0}, buffer_size=10, first=0, m={4:0}, next=1, receive=0, send=1] [L712] COND TRUE 1 next 0 && first < buffer_size VAL [buffer={3:0}, buffer_size=10, first=0, m={4:0}, next=1, receive=1, send=0] [L697] 2 first++ VAL [buffer={3:0}, buffer_size=10, first=1, m={4:0}, next=1, receive=1, send=0] [L698] EXPR 2 buffer[first-1] VAL [buffer={3:0}, buffer[first-1]=0, buffer_size=10, first=1, m={4:0}, next=1, receive=1, send=0] [L698] 2 return buffer[first-1]; VAL [\result=0, buffer={3:0}, buffer[first-1]=0, buffer_size=10, first=1, m={4:0}, next=1, receive=1, send=0] [L745] RET, EXPR 2 removeLogElement() [L745] COND FALSE 2 !(removeLogElement()==i) VAL [arg={0:0}, arg={0:0}, buffer={3:0}, buffer_size=10, first=1, i=1, m={4:0}, next=1, receive=1, removeLogElement()=0, send=0] [L746] 2 reach_error() VAL [arg={0:0}, arg={0:0}, buffer={3:0}, buffer_size=10, first=1, i=1, m={4:0}, next=1, receive=1, send=0] - StatisticsResult: Ultimate Automizer benchmark data for errors in thread instance: t1Thread1of1ForFork1 with 1 thread instances CFG has 5 procedures, 199 locations, 6 error locations. Started 1 CEGAR loops. OverallTime: 6.4s, OverallIterations: 2, TraceHistogramMax: 0, PathProgramHistogramMax: 1, EmptinessCheckTime: 5.1s, 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: 7, 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: 0.1s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 215 NumberOfCodeBlocks, 215 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 213 ConstructedInterpolants, 1 QuantifiedInterpolants, 437 SizeOfPredicates, 2 NumberOfNonLiveVariables, 597 ConjunctsInSsa, 10 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 102/102 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 - StatisticsResult: Ultimate Automizer benchmark data for errors in thread instance: ULTIMATE.start with 1 thread instances CFG has 5 procedures, 199 locations, 6 error locations. Started 1 CEGAR loops. OverallTime: 2.2s, OverallIterations: 0, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 2.2s, 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: 0, 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: No data available, ReuseStatistics: No data available - StatisticsResult: Ultimate Automizer benchmark data for errors in thread instance: t2Thread1of1ForFork0 with 1 thread instances CFG has 5 procedures, 199 locations, 6 error locations. Started 1 CEGAR loops. OverallTime: 4.3s, OverallIterations: 4, TraceHistogramMax: 0, PathProgramHistogramMax: 1, EmptinessCheckTime: 1.5s, 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: 14, 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: 0.1s SsaConstructionTime, 0.6s SatisfiabilityAnalysisTime, 1.0s InterpolantComputationTime, 431 NumberOfCodeBlocks, 431 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 325 ConstructedInterpolants, 5 QuantifiedInterpolants, 1670 SizeOfPredicates, 14 NumberOfNonLiveVariables, 661 ConjunctsInSsa, 38 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 PerfectInterpolantSequences, 117/117 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! [2023-03-23 20:41:38,193 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (6)] Forceful destruction successful, exit code 0 [2023-03-23 20:41:38,404 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (5)] Ended with exit code 0 [2023-03-23 20:41:38,611 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 [2023-03-23 20:41:38,792 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...