/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/EvenOdd03WithOverflowBug.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-05d3305-m [2022-10-15 17:10:07,691 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-15 17:10:07,695 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-15 17:10:07,761 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-10-15 17:10:07,762 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-10-15 17:10:07,766 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-10-15 17:10:07,770 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-10-15 17:10:07,780 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-10-15 17:10:07,783 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-10-15 17:10:07,791 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-10-15 17:10:07,792 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-10-15 17:10:07,796 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-10-15 17:10:07,797 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-10-15 17:10:07,801 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-10-15 17:10:07,803 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-10-15 17:10:07,810 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-10-15 17:10:07,825 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-10-15 17:10:07,827 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-10-15 17:10:07,831 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-10-15 17:10:07,841 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-10-15 17:10:07,844 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-10-15 17:10:07,846 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-10-15 17:10:07,848 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-10-15 17:10:07,851 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-10-15 17:10:07,861 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-10-15 17:10:07,862 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-10-15 17:10:07,862 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-10-15 17:10:07,865 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-10-15 17:10:07,866 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-10-15 17:10:07,867 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-10-15 17:10:07,867 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-10-15 17:10:07,869 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-10-15 17:10:07,871 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-10-15 17:10:07,872 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-10-15 17:10:07,874 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-10-15 17:10:07,874 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-10-15 17:10:07,875 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-10-15 17:10:07,875 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-10-15 17:10:07,875 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-10-15 17:10:07,877 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-10-15 17:10:07,878 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-10-15 17:10:07,884 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 [2022-10-15 17:10:07,939 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-15 17:10:07,940 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-15 17:10:07,941 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-10-15 17:10:07,941 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-10-15 17:10:07,943 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-10-15 17:10:07,944 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-10-15 17:10:07,946 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-10-15 17:10:07,947 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-10-15 17:10:07,947 INFO L138 SettingsManager]: * Use SBE=true [2022-10-15 17:10:07,947 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-15 17:10:07,949 INFO L138 SettingsManager]: * sizeof long=4 [2022-10-15 17:10:07,949 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-10-15 17:10:07,949 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-15 17:10:07,950 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-10-15 17:10:07,950 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-15 17:10:07,950 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2022-10-15 17:10:07,950 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2022-10-15 17:10:07,951 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2022-10-15 17:10:07,951 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-10-15 17:10:07,951 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-10-15 17:10:07,951 INFO L138 SettingsManager]: * sizeof long double=12 [2022-10-15 17:10:07,952 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-15 17:10:07,952 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-15 17:10:07,952 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-10-15 17:10:07,952 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-10-15 17:10:07,953 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-15 17:10:07,953 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-15 17:10:07,953 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-10-15 17:10:07,953 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-10-15 17:10:07,953 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-10-15 17:10:07,954 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-10-15 17:10:08,403 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-15 17:10:08,434 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-15 17:10:08,437 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-15 17:10:08,440 INFO L271 PluginConnector]: Initializing CDTParser... [2022-10-15 17:10:08,440 INFO L275 PluginConnector]: CDTParser initialized [2022-10-15 17:10:08,442 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/recursive/EvenOdd03WithOverflowBug.c [2022-10-15 17:10:08,519 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/26e40fb78/0610e81f3cb34070aebc6bbec382381f/FLAGe2b8b6150 [2022-10-15 17:10:09,113 INFO L306 CDTParser]: Found 1 translation units. [2022-10-15 17:10:09,113 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/recursive/EvenOdd03WithOverflowBug.c [2022-10-15 17:10:09,121 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/26e40fb78/0610e81f3cb34070aebc6bbec382381f/FLAGe2b8b6150 [2022-10-15 17:10:09,500 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/26e40fb78/0610e81f3cb34070aebc6bbec382381f [2022-10-15 17:10:09,504 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-15 17:10:09,511 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-10-15 17:10:09,515 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-10-15 17:10:09,515 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-10-15 17:10:09,520 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-10-15 17:10:09,521 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 05:10:09" (1/1) ... [2022-10-15 17:10:09,523 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@29d2ee2b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 05:10:09, skipping insertion in model container [2022-10-15 17:10:09,523 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 05:10:09" (1/1) ... [2022-10-15 17:10:09,536 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-10-15 17:10:09,557 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-10-15 17:10:09,809 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/EvenOdd03WithOverflowBug.c[948,961] [2022-10-15 17:10:09,814 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-15 17:10:09,828 INFO L203 MainTranslator]: Completed pre-run [2022-10-15 17:10:09,852 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/EvenOdd03WithOverflowBug.c[948,961] [2022-10-15 17:10:09,853 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-15 17:10:09,871 INFO L208 MainTranslator]: Completed translation [2022-10-15 17:10:09,872 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 05:10:09 WrapperNode [2022-10-15 17:10:09,874 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-10-15 17:10:09,875 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-10-15 17:10:09,876 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-10-15 17:10:09,876 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-10-15 17:10:09,886 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 05:10:09" (1/1) ... [2022-10-15 17:10:09,895 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 05:10:09" (1/1) ... [2022-10-15 17:10:09,915 INFO L138 Inliner]: procedures = 14, calls = 10, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 24 [2022-10-15 17:10:09,916 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-10-15 17:10:09,917 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-15 17:10:09,917 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-15 17:10:09,917 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-15 17:10:09,927 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 05:10:09" (1/1) ... [2022-10-15 17:10:09,928 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 05:10:09" (1/1) ... [2022-10-15 17:10:09,929 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 05:10:09" (1/1) ... [2022-10-15 17:10:09,929 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 05:10:09" (1/1) ... [2022-10-15 17:10:09,933 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 05:10:09" (1/1) ... [2022-10-15 17:10:09,936 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 05:10:09" (1/1) ... [2022-10-15 17:10:09,937 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 05:10:09" (1/1) ... [2022-10-15 17:10:09,938 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 05:10:09" (1/1) ... [2022-10-15 17:10:09,940 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-15 17:10:09,942 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-15 17:10:09,942 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-15 17:10:09,942 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-15 17:10:09,943 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 05:10:09" (1/1) ... [2022-10-15 17:10:09,952 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-15 17:10:09,965 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-15 17:10:09,982 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) [2022-10-15 17:10:10,007 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 [2022-10-15 17:10:10,052 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-10-15 17:10:10,052 INFO L130 BoogieDeclarations]: Found specification of procedure isEven [2022-10-15 17:10:10,052 INFO L138 BoogieDeclarations]: Found implementation of procedure isEven [2022-10-15 17:10:10,052 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-10-15 17:10:10,052 INFO L130 BoogieDeclarations]: Found specification of procedure isOdd [2022-10-15 17:10:10,052 INFO L138 BoogieDeclarations]: Found implementation of procedure isOdd [2022-10-15 17:10:10,053 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-15 17:10:10,053 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-15 17:10:10,131 INFO L235 CfgBuilder]: Building ICFG [2022-10-15 17:10:10,133 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-15 17:10:10,280 INFO L276 CfgBuilder]: Performing block encoding [2022-10-15 17:10:10,292 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-15 17:10:10,292 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-10-15 17:10:10,295 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 05:10:10 BoogieIcfgContainer [2022-10-15 17:10:10,295 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-15 17:10:10,298 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-10-15 17:10:10,298 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-10-15 17:10:10,302 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-10-15 17:10:10,303 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.10 05:10:09" (1/3) ... [2022-10-15 17:10:10,304 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@26e975a7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 05:10:10, skipping insertion in model container [2022-10-15 17:10:10,304 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 05:10:09" (2/3) ... [2022-10-15 17:10:10,305 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@26e975a7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 05:10:10, skipping insertion in model container [2022-10-15 17:10:10,305 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 05:10:10" (3/3) ... [2022-10-15 17:10:10,307 INFO L112 eAbstractionObserver]: Analyzing ICFG EvenOdd03WithOverflowBug.c [2022-10-15 17:10:10,350 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-10-15 17:10:10,351 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-10-15 17:10:10,410 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-10-15 17:10:10,420 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;@d4f6d1d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-15 17:10:10,421 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-10-15 17:10:10,426 INFO L276 IsEmpty]: Start isEmpty. Operand has 25 states, 17 states have (on average 1.411764705882353) internal successors, (24), 19 states have internal predecessors, (24), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-10-15 17:10:10,436 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-10-15 17:10:10,437 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:10:10,438 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 17:10:10,438 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:10:10,445 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:10:10,445 INFO L85 PathProgramCache]: Analyzing trace with hash -752985682, now seen corresponding path program 1 times [2022-10-15 17:10:10,457 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:10:10,457 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [937800333] [2022-10-15 17:10:10,457 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:10:10,458 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:10:10,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-15 17:10:10,601 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-10-15 17:10:10,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-15 17:10:10,647 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-10-15 17:10:10,650 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-10-15 17:10:10,652 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (1 of 2 remaining) [2022-10-15 17:10:10,654 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK (0 of 2 remaining) [2022-10-15 17:10:10,656 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-10-15 17:10:10,662 INFO L444 BasicCegarLoop]: Path program histogram: [1] [2022-10-15 17:10:10,667 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-10-15 17:10:10,693 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.10 05:10:10 BoogieIcfgContainer [2022-10-15 17:10:10,693 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-10-15 17:10:10,695 INFO L158 Benchmark]: Toolchain (without parser) took 1188.18ms. Allocated memory is still 164.6MB. Free memory was 138.2MB in the beginning and 134.2MB in the end (delta: 3.9MB). Peak memory consumption was 5.0MB. Max. memory is 8.0GB. [2022-10-15 17:10:10,696 INFO L158 Benchmark]: CDTParser took 0.24ms. Allocated memory is still 164.6MB. Free memory was 136.0MB in the beginning and 135.9MB in the end (delta: 82.4kB). There was no memory consumed. Max. memory is 8.0GB. [2022-10-15 17:10:10,697 INFO L158 Benchmark]: CACSL2BoogieTranslator took 359.91ms. Allocated memory is still 164.6MB. Free memory was 137.9MB in the beginning and 128.3MB in the end (delta: 9.6MB). Peak memory consumption was 9.4MB. Max. memory is 8.0GB. [2022-10-15 17:10:10,698 INFO L158 Benchmark]: Boogie Procedure Inliner took 40.28ms. Allocated memory is still 164.6MB. Free memory was 128.3MB in the beginning and 126.9MB in the end (delta: 1.4MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-10-15 17:10:10,698 INFO L158 Benchmark]: Boogie Preprocessor took 24.12ms. Allocated memory is still 164.6MB. Free memory was 126.8MB in the beginning and 125.9MB in the end (delta: 910.9kB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-10-15 17:10:10,699 INFO L158 Benchmark]: RCFGBuilder took 353.53ms. Allocated memory is still 164.6MB. Free memory was 125.8MB in the beginning and 115.8MB in the end (delta: 10.0MB). Peak memory consumption was 10.5MB. Max. memory is 8.0GB. [2022-10-15 17:10:10,700 INFO L158 Benchmark]: TraceAbstraction took 395.32ms. Allocated memory is still 164.6MB. Free memory was 115.1MB in the beginning and 134.2MB in the end (delta: -19.1MB). There was no memory consumed. Max. memory is 8.0GB. [2022-10-15 17:10:10,705 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24ms. Allocated memory is still 164.6MB. Free memory was 136.0MB in the beginning and 135.9MB in the end (delta: 82.4kB). There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 359.91ms. Allocated memory is still 164.6MB. Free memory was 137.9MB in the beginning and 128.3MB in the end (delta: 9.6MB). Peak memory consumption was 9.4MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 40.28ms. Allocated memory is still 164.6MB. Free memory was 128.3MB in the beginning and 126.9MB in the end (delta: 1.4MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * Boogie Preprocessor took 24.12ms. Allocated memory is still 164.6MB. Free memory was 126.8MB in the beginning and 125.9MB in the end (delta: 910.9kB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 353.53ms. Allocated memory is still 164.6MB. Free memory was 125.8MB in the beginning and 115.8MB in the end (delta: 10.0MB). Peak memory consumption was 10.5MB. Max. memory is 8.0GB. * TraceAbstraction took 395.32ms. Allocated memory is still 164.6MB. Free memory was 115.1MB in the beginning and 134.2MB in the end (delta: -19.1MB). There was no memory consumed. 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: 46]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: overapproximation of memtrack at line 46. Possible FailurePath: [L40] int n = __VERIFIER_nondet_int(); [L41] CALL, EXPR isEven(n) VAL [\old(n)=0] [L29] COND TRUE n == 0 [L30] return 1; VAL [\old(n)=0, \result=1, n=0] [L41] RET, EXPR isEven(n) VAL [isEven(n)=1, n=0] [L41] int result = isEven(n); [L42] int mod = n % 2; VAL [mod=0, n=0, result=1] [L43] COND FALSE !(result < 0 || result == mod) VAL [mod=0, n=0, result=1] [L46] reach_error() VAL [mod=0, n=0, result=1] - UnprovableResult [Line: 39]: 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 3 procedures, 25 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.3s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=25occurred 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: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 10 NumberOfCodeBlocks, 10 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 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 [2022-10-15 17:10:10,766 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...