/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf -i ../sv-benchmarks/c/recursive/Addition02WithOverflowBug.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-05d3305-m [2022-10-16 02:04:56,734 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-16 02:04:56,738 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-16 02:04:56,781 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-10-16 02:04:56,782 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-10-16 02:04:56,783 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-10-16 02:04:56,785 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-10-16 02:04:56,801 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-10-16 02:04:56,806 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-10-16 02:04:56,807 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-10-16 02:04:56,809 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-10-16 02:04:56,814 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-10-16 02:04:56,815 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-10-16 02:04:56,821 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-10-16 02:04:56,823 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-10-16 02:04:56,828 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-10-16 02:04:56,829 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-10-16 02:04:56,835 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-10-16 02:04:56,837 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-10-16 02:04:56,840 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-10-16 02:04:56,846 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-10-16 02:04:56,848 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-10-16 02:04:56,850 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-10-16 02:04:56,853 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-10-16 02:04:56,865 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-10-16 02:04:56,866 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-10-16 02:04:56,866 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-10-16 02:04:56,870 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-10-16 02:04:56,871 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-10-16 02:04:56,873 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-10-16 02:04:56,873 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-10-16 02:04:56,874 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-10-16 02:04:56,876 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-10-16 02:04:56,877 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-10-16 02:04:56,879 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-10-16 02:04:56,879 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-10-16 02:04:56,880 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-10-16 02:04:56,880 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-10-16 02:04:56,881 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-10-16 02:04:56,882 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-10-16 02:04:56,883 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-10-16 02:04:56,884 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2022-10-16 02:04:56,946 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-16 02:04:56,946 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-16 02:04:56,947 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-10-16 02:04:56,947 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-10-16 02:04:56,949 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-10-16 02:04:56,950 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-10-16 02:04:56,953 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-10-16 02:04:56,953 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-10-16 02:04:56,953 INFO L138 SettingsManager]: * Use SBE=true [2022-10-16 02:04:56,953 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-16 02:04:56,955 INFO L138 SettingsManager]: * sizeof long=4 [2022-10-16 02:04:56,955 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-10-16 02:04:56,955 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-16 02:04:56,955 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-10-16 02:04:56,956 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-16 02:04:56,956 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2022-10-16 02:04:56,956 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2022-10-16 02:04:56,956 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2022-10-16 02:04:56,957 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-10-16 02:04:56,957 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-10-16 02:04:56,957 INFO L138 SettingsManager]: * sizeof long double=12 [2022-10-16 02:04:56,958 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-16 02:04:56,958 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-16 02:04:56,958 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-10-16 02:04:56,958 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-10-16 02:04:56,959 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-16 02:04:56,959 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-16 02:04:56,959 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-10-16 02:04:56,959 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-10-16 02:04:56,960 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-10-16 02:04:56,960 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-10-16 02:04:57,385 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-16 02:04:57,415 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-16 02:04:57,418 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-16 02:04:57,420 INFO L271 PluginConnector]: Initializing CDTParser... [2022-10-16 02:04:57,421 INFO L275 PluginConnector]: CDTParser initialized [2022-10-16 02:04:57,422 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/recursive/Addition02WithOverflowBug.c [2022-10-16 02:04:57,503 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a3de2b988/0ece24016390481785889ae24e798b00/FLAG5984d8d07 [2022-10-16 02:04:58,194 INFO L306 CDTParser]: Found 1 translation units. [2022-10-16 02:04:58,194 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/recursive/Addition02WithOverflowBug.c [2022-10-16 02:04:58,202 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a3de2b988/0ece24016390481785889ae24e798b00/FLAG5984d8d07 [2022-10-16 02:04:58,578 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a3de2b988/0ece24016390481785889ae24e798b00 [2022-10-16 02:04:58,583 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-16 02:04:58,589 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-10-16 02:04:58,592 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-10-16 02:04:58,592 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-10-16 02:04:58,597 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-10-16 02:04:58,598 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 02:04:58" (1/1) ... [2022-10-16 02:04:58,602 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6704814e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:04:58, skipping insertion in model container [2022-10-16 02:04:58,602 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 02:04:58" (1/1) ... [2022-10-16 02:04:58,611 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-10-16 02:04:58,628 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-10-16 02:04:58,791 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/recursive/Addition02WithOverflowBug.c[809,822] [2022-10-16 02:04:58,795 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-16 02:04:58,807 INFO L203 MainTranslator]: Completed pre-run [2022-10-16 02:04:58,824 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/recursive/Addition02WithOverflowBug.c[809,822] [2022-10-16 02:04:58,825 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-16 02:04:58,842 INFO L208 MainTranslator]: Completed translation [2022-10-16 02:04:58,842 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:04:58 WrapperNode [2022-10-16 02:04:58,842 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-10-16 02:04:58,844 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-10-16 02:04:58,844 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-10-16 02:04:58,844 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-10-16 02:04:58,853 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:04:58" (1/1) ... [2022-10-16 02:04:58,862 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:04:58" (1/1) ... [2022-10-16 02:04:58,882 INFO L138 Inliner]: procedures = 13, calls = 10, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 26 [2022-10-16 02:04:58,883 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-10-16 02:04:58,884 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-16 02:04:58,884 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-16 02:04:58,884 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-16 02:04:58,895 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:04:58" (1/1) ... [2022-10-16 02:04:58,895 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:04:58" (1/1) ... [2022-10-16 02:04:58,896 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:04:58" (1/1) ... [2022-10-16 02:04:58,897 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:04:58" (1/1) ... [2022-10-16 02:04:58,900 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:04:58" (1/1) ... [2022-10-16 02:04:58,903 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:04:58" (1/1) ... [2022-10-16 02:04:58,904 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:04:58" (1/1) ... [2022-10-16 02:04:58,905 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:04:58" (1/1) ... [2022-10-16 02:04:58,907 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-16 02:04:58,908 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-16 02:04:58,909 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-16 02:04:58,909 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-16 02:04:58,910 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:04:58" (1/1) ... [2022-10-16 02:04:58,918 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-16 02:04:58,932 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 02:04:58,952 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-10-16 02:04:58,975 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-10-16 02:04:59,022 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-10-16 02:04:59,022 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-16 02:04:59,022 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-16 02:04:59,022 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-10-16 02:04:59,023 INFO L130 BoogieDeclarations]: Found specification of procedure addition [2022-10-16 02:04:59,023 INFO L138 BoogieDeclarations]: Found implementation of procedure addition [2022-10-16 02:04:59,120 INFO L235 CfgBuilder]: Building ICFG [2022-10-16 02:04:59,123 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-16 02:04:59,331 INFO L276 CfgBuilder]: Performing block encoding [2022-10-16 02:04:59,340 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-16 02:04:59,340 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-10-16 02:04:59,343 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 02:04:59 BoogieIcfgContainer [2022-10-16 02:04:59,343 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-16 02:04:59,347 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-10-16 02:04:59,347 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-10-16 02:04:59,351 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-10-16 02:04:59,351 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.10 02:04:58" (1/3) ... [2022-10-16 02:04:59,352 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@299a9624 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 02:04:59, skipping insertion in model container [2022-10-16 02:04:59,353 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:04:58" (2/3) ... [2022-10-16 02:04:59,353 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@299a9624 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 02:04:59, skipping insertion in model container [2022-10-16 02:04:59,353 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 02:04:59" (3/3) ... [2022-10-16 02:04:59,355 INFO L112 eAbstractionObserver]: Analyzing ICFG Addition02WithOverflowBug.c [2022-10-16 02:04:59,382 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-10-16 02:04:59,382 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-10-16 02:04:59,456 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-10-16 02:04:59,466 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=false, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=All, 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;@1512abff, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-16 02:04:59,466 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-10-16 02:04:59,472 INFO L276 IsEmpty]: Start isEmpty. Operand has 21 states, 14 states have (on average 1.4285714285714286) internal successors, (20), 16 states have internal predecessors, (20), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-10-16 02:04:59,482 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-10-16 02:04:59,483 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 02:04:59,484 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 02:04:59,485 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 02:04:59,492 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 02:04:59,492 INFO L85 PathProgramCache]: Analyzing trace with hash -1735320730, now seen corresponding path program 1 times [2022-10-16 02:04:59,504 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 02:04:59,505 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [69713984] [2022-10-16 02:04:59,505 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 02:04:59,506 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 02:04:59,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:04:59,812 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-16 02:04:59,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:04:59,863 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 02:04:59,864 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 02:04:59,864 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [69713984] [2022-10-16 02:04:59,865 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [69713984] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 02:04:59,866 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 02:04:59,867 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-10-16 02:04:59,869 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2072873676] [2022-10-16 02:04:59,870 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 02:04:59,876 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-16 02:04:59,877 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 02:04:59,919 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-16 02:04:59,921 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 02:04:59,924 INFO L87 Difference]: Start difference. First operand has 21 states, 14 states have (on average 1.4285714285714286) internal successors, (20), 16 states have internal predecessors, (20), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Second operand has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-10-16 02:04:59,988 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 02:04:59,989 INFO L93 Difference]: Finished difference Result 20 states and 24 transitions. [2022-10-16 02:04:59,994 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-16 02:04:59,997 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 10 [2022-10-16 02:04:59,998 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 02:05:00,013 INFO L225 Difference]: With dead ends: 20 [2022-10-16 02:05:00,014 INFO L226 Difference]: Without dead ends: 17 [2022-10-16 02:05:00,016 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 02:05:00,022 INFO L413 NwaCegarLoop]: 23 mSDtfsCounter, 4 mSDsluCounter, 14 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 37 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 02:05:00,024 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 37 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 02:05:00,048 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2022-10-16 02:05:00,069 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 17. [2022-10-16 02:05:00,072 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17 states, 12 states have (on average 1.25) internal successors, (15), 12 states have internal predecessors, (15), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-10-16 02:05:00,073 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 21 transitions. [2022-10-16 02:05:00,074 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 21 transitions. Word has length 10 [2022-10-16 02:05:00,076 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 02:05:00,077 INFO L495 AbstractCegarLoop]: Abstraction has 17 states and 21 transitions. [2022-10-16 02:05:00,077 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-10-16 02:05:00,078 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 21 transitions. [2022-10-16 02:05:00,079 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-10-16 02:05:00,079 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 02:05:00,080 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 02:05:00,080 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-10-16 02:05:00,080 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 02:05:00,082 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 02:05:00,082 INFO L85 PathProgramCache]: Analyzing trace with hash -1735320671, now seen corresponding path program 1 times [2022-10-16 02:05:00,082 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 02:05:00,083 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2113358318] [2022-10-16 02:05:00,083 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 02:05:00,083 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 02:05:00,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:05:00,344 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-16 02:05:00,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:05:00,428 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 02:05:00,428 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 02:05:00,429 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2113358318] [2022-10-16 02:05:00,429 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2113358318] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 02:05:00,429 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 02:05:00,430 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-10-16 02:05:00,430 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1319115693] [2022-10-16 02:05:00,430 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 02:05:00,432 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-16 02:05:00,432 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 02:05:00,433 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-16 02:05:00,433 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-10-16 02:05:00,434 INFO L87 Difference]: Start difference. First operand 17 states and 21 transitions. Second operand has 6 states, 6 states have (on average 1.3333333333333333) internal successors, (8), 5 states have internal predecessors, (8), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-10-16 02:05:00,528 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 02:05:00,528 INFO L93 Difference]: Finished difference Result 21 states and 26 transitions. [2022-10-16 02:05:00,529 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-10-16 02:05:00,529 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 1.3333333333333333) internal successors, (8), 5 states have internal predecessors, (8), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 10 [2022-10-16 02:05:00,529 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 02:05:00,532 INFO L225 Difference]: With dead ends: 21 [2022-10-16 02:05:00,532 INFO L226 Difference]: Without dead ends: 19 [2022-10-16 02:05:00,533 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-10-16 02:05:00,535 INFO L413 NwaCegarLoop]: 11 mSDtfsCounter, 10 mSDsluCounter, 21 mSDsCounter, 0 mSdLazyCounter, 60 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 32 SdHoareTripleChecker+Invalid, 60 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 60 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 02:05:00,536 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 32 Invalid, 60 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 60 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 02:05:00,537 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2022-10-16 02:05:00,542 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 19. [2022-10-16 02:05:00,543 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19 states, 13 states have (on average 1.2307692307692308) internal successors, (16), 14 states have internal predecessors, (16), 3 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) [2022-10-16 02:05:00,544 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 24 transitions. [2022-10-16 02:05:00,544 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 24 transitions. Word has length 10 [2022-10-16 02:05:00,545 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 02:05:00,545 INFO L495 AbstractCegarLoop]: Abstraction has 19 states and 24 transitions. [2022-10-16 02:05:00,545 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 1.3333333333333333) internal successors, (8), 5 states have internal predecessors, (8), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-10-16 02:05:00,546 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 24 transitions. [2022-10-16 02:05:00,547 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-10-16 02:05:00,547 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 02:05:00,547 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 02:05:00,547 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-10-16 02:05:00,548 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 02:05:00,548 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 02:05:00,549 INFO L85 PathProgramCache]: Analyzing trace with hash -1427986022, now seen corresponding path program 1 times [2022-10-16 02:05:00,549 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 02:05:00,549 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1674691128] [2022-10-16 02:05:00,550 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 02:05:00,550 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 02:05:00,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:05:00,583 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-16 02:05:00,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:05:00,618 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 02:05:00,619 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 02:05:00,619 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1674691128] [2022-10-16 02:05:00,619 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1674691128] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 02:05:00,620 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 02:05:00,620 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-16 02:05:00,620 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1308765217] [2022-10-16 02:05:00,620 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 02:05:00,621 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 02:05:00,621 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 02:05:00,622 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 02:05:00,622 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-10-16 02:05:00,623 INFO L87 Difference]: Start difference. First operand 19 states and 24 transitions. Second operand has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-10-16 02:05:00,655 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 02:05:00,656 INFO L93 Difference]: Finished difference Result 21 states and 27 transitions. [2022-10-16 02:05:00,656 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-16 02:05:00,656 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 12 [2022-10-16 02:05:00,657 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 02:05:00,658 INFO L225 Difference]: With dead ends: 21 [2022-10-16 02:05:00,658 INFO L226 Difference]: Without dead ends: 21 [2022-10-16 02:05:00,658 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-10-16 02:05:00,661 INFO L413 NwaCegarLoop]: 20 mSDtfsCounter, 9 mSDsluCounter, 11 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 31 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 02:05:00,662 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 31 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 02:05:00,663 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2022-10-16 02:05:00,668 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 19. [2022-10-16 02:05:00,668 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19 states, 13 states have (on average 1.1538461538461537) internal successors, (15), 14 states have internal predecessors, (15), 3 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) [2022-10-16 02:05:00,669 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 23 transitions. [2022-10-16 02:05:00,670 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 23 transitions. Word has length 12 [2022-10-16 02:05:00,670 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 02:05:00,670 INFO L495 AbstractCegarLoop]: Abstraction has 19 states and 23 transitions. [2022-10-16 02:05:00,670 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-10-16 02:05:00,671 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 23 transitions. [2022-10-16 02:05:00,672 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-10-16 02:05:00,672 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 02:05:00,672 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 02:05:00,672 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-10-16 02:05:00,673 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 02:05:00,673 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 02:05:00,674 INFO L85 PathProgramCache]: Analyzing trace with hash 1098900706, now seen corresponding path program 1 times [2022-10-16 02:05:00,674 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 02:05:00,674 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1568629620] [2022-10-16 02:05:00,674 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 02:05:00,675 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 02:05:00,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-16 02:05:00,702 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-10-16 02:05:00,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-16 02:05:00,777 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-10-16 02:05:00,778 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-10-16 02:05:00,781 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (1 of 2 remaining) [2022-10-16 02:05:00,786 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK (0 of 2 remaining) [2022-10-16 02:05:00,786 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-10-16 02:05:00,793 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2022-10-16 02:05:00,802 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-10-16 02:05:00,855 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.10 02:05:00 BoogieIcfgContainer [2022-10-16 02:05:00,857 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-10-16 02:05:00,858 INFO L158 Benchmark]: Toolchain (without parser) took 2273.01ms. Allocated memory is still 151.0MB. Free memory was 125.3MB in the beginning and 82.9MB in the end (delta: 42.4MB). Peak memory consumption was 43.0MB. Max. memory is 8.0GB. [2022-10-16 02:05:00,859 INFO L158 Benchmark]: CDTParser took 0.34ms. Allocated memory is still 151.0MB. Free memory is still 121.9MB. There was no memory consumed. Max. memory is 8.0GB. [2022-10-16 02:05:00,862 INFO L158 Benchmark]: CACSL2BoogieTranslator took 251.34ms. Allocated memory is still 151.0MB. Free memory was 125.1MB in the beginning and 115.6MB in the end (delta: 9.4MB). Peak memory consumption was 9.4MB. Max. memory is 8.0GB. [2022-10-16 02:05:00,866 INFO L158 Benchmark]: Boogie Procedure Inliner took 39.26ms. Allocated memory is still 151.0MB. Free memory was 115.6MB in the beginning and 114.1MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-10-16 02:05:00,867 INFO L158 Benchmark]: Boogie Preprocessor took 23.68ms. Allocated memory is still 151.0MB. Free memory was 114.1MB in the beginning and 113.1MB in the end (delta: 1.0MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-10-16 02:05:00,873 INFO L158 Benchmark]: RCFGBuilder took 434.91ms. Allocated memory is still 151.0MB. Free memory was 113.1MB in the beginning and 103.0MB in the end (delta: 10.1MB). Peak memory consumption was 9.4MB. Max. memory is 8.0GB. [2022-10-16 02:05:00,873 INFO L158 Benchmark]: TraceAbstraction took 1510.85ms. Allocated memory is still 151.0MB. Free memory was 102.3MB in the beginning and 82.9MB in the end (delta: 19.4MB). Peak memory consumption was 19.9MB. Max. memory is 8.0GB. [2022-10-16 02:05:00,879 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.34ms. Allocated memory is still 151.0MB. Free memory is still 121.9MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 251.34ms. Allocated memory is still 151.0MB. Free memory was 125.1MB in the beginning and 115.6MB in the end (delta: 9.4MB). Peak memory consumption was 9.4MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 39.26ms. Allocated memory is still 151.0MB. Free memory was 115.6MB in the beginning and 114.1MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 23.68ms. Allocated memory is still 151.0MB. Free memory was 114.1MB in the beginning and 113.1MB in the end (delta: 1.0MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 434.91ms. Allocated memory is still 151.0MB. Free memory was 113.1MB in the beginning and 103.0MB in the end (delta: 10.1MB). Peak memory consumption was 9.4MB. Max. memory is 8.0GB. * TraceAbstraction took 1510.85ms. Allocated memory is still 151.0MB. Free memory was 102.3MB in the beginning and 82.9MB in the end (delta: 19.4MB). Peak memory consumption was 19.9MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 35]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: overapproximation of memtrack at line 35. Possible FailurePath: [L29] int m = __VERIFIER_nondet_int(); [L30] int n = __VERIFIER_nondet_int(); [L31] CALL, EXPR addition(m,n) VAL [\old(m)=-1, \old(n)=1] [L16] COND FALSE !(n == 0) VAL [\old(m)=-1, \old(n)=1, m=-1, n=1] [L19] COND TRUE n > 0 VAL [\old(m)=-1, \old(n)=1, m=-1, n=1] [L20] CALL, EXPR addition(m+1, n-1) VAL [\old(m)=0, \old(n)=0] [L16] COND TRUE n == 0 [L17] return m; VAL [\old(m)=0, \old(n)=0, \result=0, m=0, n=0] [L20] RET, EXPR addition(m+1, n-1) VAL [\old(m)=-1, \old(n)=1, addition(m+1, n-1)=0, m=-1, n=1] [L20] return addition(m+1, n-1); [L31] RET, EXPR addition(m,n) VAL [addition(m,n)=0, m=-1, n=1] [L31] int result = addition(m,n); [L32] COND FALSE !(result == m - n) VAL [m=-1, n=1, result=0] [L35] reach_error() VAL [m=-1, n=1, result=0] - UnprovableResult [Line: 28]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 21 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 1.4s, OverallIterations: 4, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 29 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 23 mSDsluCounter, 100 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 46 mSDsCounter, 1 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 79 IncrementalHoareTripleChecker+Invalid, 80 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1 mSolverCounterUnsat, 54 mSDtfsCounter, 79 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 19 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=21occurred in iteration=0, InterpolantAutomatonStates: 13, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 2 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 49 NumberOfCodeBlocks, 49 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 29 ConstructedInterpolants, 0 QuantifiedInterpolants, 86 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2022-10-16 02:05:00,935 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...