java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/SifaC.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/ldv-regression/alias_of_return_2.i -------------------------------------------------------------------------------- This is Ultimate 0.1.24-2989841 [2019-08-10 01:58:03,879 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-08-10 01:58:03,881 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-08-10 01:58:03,892 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-08-10 01:58:03,893 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-08-10 01:58:03,894 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-08-10 01:58:03,895 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-08-10 01:58:03,897 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-08-10 01:58:03,898 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-08-10 01:58:03,899 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-08-10 01:58:03,900 INFO L181 SettingsManager]: Resetting Symbolic Interpretation preferences to default values [2019-08-10 01:58:03,901 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-08-10 01:58:03,901 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-08-10 01:58:03,902 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-08-10 01:58:03,903 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-08-10 01:58:03,904 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-08-10 01:58:03,905 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-08-10 01:58:03,906 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-08-10 01:58:03,908 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-08-10 01:58:03,910 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-08-10 01:58:03,911 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-08-10 01:58:03,913 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-08-10 01:58:03,914 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-08-10 01:58:03,915 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-08-10 01:58:03,917 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-08-10 01:58:03,921 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-08-10 01:58:03,922 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-08-10 01:58:03,922 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-08-10 01:58:03,923 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-08-10 01:58:03,924 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-08-10 01:58:03,925 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-08-10 01:58:03,925 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-08-10 01:58:03,926 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-08-10 01:58:03,926 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-08-10 01:58:03,928 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-08-10 01:58:03,929 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-08-10 01:58:03,930 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2019-08-10 01:58:03,944 INFO L113 SettingsManager]: Loading preferences was successful [2019-08-10 01:58:03,945 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-08-10 01:58:03,946 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-08-10 01:58:03,946 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-08-10 01:58:03,946 INFO L138 SettingsManager]: * Use SBE=true [2019-08-10 01:58:03,946 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-08-10 01:58:03,947 INFO L138 SettingsManager]: * sizeof long=4 [2019-08-10 01:58:03,947 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-08-10 01:58:03,947 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-08-10 01:58:03,947 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-08-10 01:58:03,947 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-08-10 01:58:03,948 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-08-10 01:58:03,948 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-08-10 01:58:03,948 INFO L138 SettingsManager]: * sizeof long double=12 [2019-08-10 01:58:03,948 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-08-10 01:58:03,948 INFO L138 SettingsManager]: * Use constant arrays=true [2019-08-10 01:58:03,949 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-08-10 01:58:03,949 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-08-10 01:58:03,949 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-08-10 01:58:03,949 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-08-10 01:58:03,949 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-08-10 01:58:03,950 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-08-10 01:58:03,950 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-08-10 01:58:03,950 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-08-10 01:58:03,950 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-08-10 01:58:03,950 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-08-10 01:58:03,951 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-08-10 01:58:03,951 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-08-10 01:58:03,951 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-08-10 01:58:03,980 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-08-10 01:58:03,992 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-08-10 01:58:03,996 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-08-10 01:58:03,997 INFO L271 PluginConnector]: Initializing CDTParser... [2019-08-10 01:58:03,997 INFO L275 PluginConnector]: CDTParser initialized [2019-08-10 01:58:03,998 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-regression/alias_of_return_2.i [2019-08-10 01:58:04,057 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/23cc917b7/2a61adb209a94f2ba2048cc745bfd836/FLAG66fd8c715 [2019-08-10 01:58:04,475 INFO L306 CDTParser]: Found 1 translation units. [2019-08-10 01:58:04,476 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-regression/alias_of_return_2.i [2019-08-10 01:58:04,482 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/23cc917b7/2a61adb209a94f2ba2048cc745bfd836/FLAG66fd8c715 [2019-08-10 01:58:04,900 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/23cc917b7/2a61adb209a94f2ba2048cc745bfd836 [2019-08-10 01:58:04,910 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-08-10 01:58:04,912 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-08-10 01:58:04,913 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-08-10 01:58:04,913 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-08-10 01:58:04,917 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-08-10 01:58:04,917 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.08 01:58:04" (1/1) ... [2019-08-10 01:58:04,920 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5be15776 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.08 01:58:04, skipping insertion in model container [2019-08-10 01:58:04,920 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.08 01:58:04" (1/1) ... [2019-08-10 01:58:04,927 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-08-10 01:58:04,940 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-08-10 01:58:05,108 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-08-10 01:58:05,120 INFO L188 MainTranslator]: Completed pre-run [2019-08-10 01:58:05,133 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-08-10 01:58:05,146 INFO L192 MainTranslator]: Completed translation [2019-08-10 01:58:05,146 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.08 01:58:05 WrapperNode [2019-08-10 01:58:05,147 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-08-10 01:58:05,147 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-08-10 01:58:05,147 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-08-10 01:58:05,147 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-08-10 01:58:05,157 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.08 01:58:05" (1/1) ... [2019-08-10 01:58:05,157 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.08 01:58:05" (1/1) ... [2019-08-10 01:58:05,249 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.08 01:58:05" (1/1) ... [2019-08-10 01:58:05,250 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.08 01:58:05" (1/1) ... [2019-08-10 01:58:05,255 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.08 01:58:05" (1/1) ... [2019-08-10 01:58:05,256 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.08 01:58:05" (1/1) ... [2019-08-10 01:58:05,257 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.08 01:58:05" (1/1) ... [2019-08-10 01:58:05,259 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-08-10 01:58:05,262 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-08-10 01:58:05,263 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-08-10 01:58:05,263 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-08-10 01:58:05,264 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.08 01:58:05" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-08-10 01:58:05,316 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-08-10 01:58:05,316 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-08-10 01:58:05,316 INFO L138 BoogieDeclarations]: Found implementation of procedure err [2019-08-10 01:58:05,317 INFO L138 BoogieDeclarations]: Found implementation of procedure return_self [2019-08-10 01:58:05,317 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-08-10 01:58:05,317 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-08-10 01:58:05,317 INFO L130 BoogieDeclarations]: Found specification of procedure err [2019-08-10 01:58:05,317 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-08-10 01:58:05,317 INFO L130 BoogieDeclarations]: Found specification of procedure return_self [2019-08-10 01:58:05,318 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-08-10 01:58:05,318 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-08-10 01:58:05,318 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-08-10 01:58:05,318 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-08-10 01:58:05,318 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-08-10 01:58:05,318 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-08-10 01:58:05,319 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-08-10 01:58:05,519 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-08-10 01:58:05,520 INFO L283 CfgBuilder]: Removed 0 assume(true) statements. [2019-08-10 01:58:05,525 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.08 01:58:05 BoogieIcfgContainer [2019-08-10 01:58:05,525 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-08-10 01:58:05,526 INFO L113 PluginConnector]: ------------------------Symbolic Interpretation---------------------------- [2019-08-10 01:58:05,526 INFO L271 PluginConnector]: Initializing Symbolic Interpretation... [2019-08-10 01:58:05,526 INFO L275 PluginConnector]: Symbolic Interpretation initialized [2019-08-10 01:58:05,528 INFO L185 PluginConnector]: Executing the observer SymbolicInterpretationObserver from plugin Symbolic Interpretation for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.08 01:58:05" (1/1) ... [2019-08-10 01:58:05,774 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-08-10 01:58:05,783 INFO L132 PluginConnector]: ------------------------ END Symbolic Interpretation---------------------------- [2019-08-10 01:58:05,785 INFO L168 Benchmark]: Toolchain (without parser) took 872.63 ms. Allocated memory was 130.5 MB in the beginning and 198.2 MB in the end (delta: 67.6 MB). Free memory was 86.0 MB in the beginning and 151.8 MB in the end (delta: -65.8 MB). Peak memory consumption was 1.8 MB. Max. memory is 7.1 GB. [2019-08-10 01:58:05,786 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 130.5 MB. Free memory is still 104.3 MB. There was no memory consumed. Max. memory is 7.1 GB. [2019-08-10 01:58:05,787 INFO L168 Benchmark]: CACSL2BoogieTranslator took 233.85 ms. Allocated memory is still 130.5 MB. Free memory was 86.0 MB in the beginning and 76.3 MB in the end (delta: 9.7 MB). Peak memory consumption was 9.7 MB. Max. memory is 7.1 GB. [2019-08-10 01:58:05,788 INFO L168 Benchmark]: Boogie Preprocessor took 114.79 ms. Allocated memory was 130.5 MB in the beginning and 198.2 MB in the end (delta: 67.6 MB). Free memory was 76.3 MB in the beginning and 174.8 MB in the end (delta: -98.4 MB). Peak memory consumption was 16.3 MB. Max. memory is 7.1 GB. [2019-08-10 01:58:05,789 INFO L168 Benchmark]: RCFGBuilder took 262.65 ms. Allocated memory is still 198.2 MB. Free memory was 174.8 MB in the beginning and 161.2 MB in the end (delta: 13.6 MB). Peak memory consumption was 13.6 MB. Max. memory is 7.1 GB. [2019-08-10 01:58:05,790 INFO L168 Benchmark]: Symbolic Interpretation took 257.39 ms. Allocated memory is still 198.2 MB. Free memory was 161.2 MB in the beginning and 151.8 MB in the end (delta: 9.4 MB). Peak memory consumption was 9.4 MB. Max. memory is 7.1 GB. [2019-08-10 01:58:05,794 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.symbolicinterpretation: - AllSpecificationsHoldResult: All specifications hold All locations of interest are guaranteed to be unreachable. * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 130.5 MB. Free memory is still 104.3 MB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 233.85 ms. Allocated memory is still 130.5 MB. Free memory was 86.0 MB in the beginning and 76.3 MB in the end (delta: 9.7 MB). Peak memory consumption was 9.7 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 114.79 ms. Allocated memory was 130.5 MB in the beginning and 198.2 MB in the end (delta: 67.6 MB). Free memory was 76.3 MB in the beginning and 174.8 MB in the end (delta: -98.4 MB). Peak memory consumption was 16.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 262.65 ms. Allocated memory is still 198.2 MB. Free memory was 174.8 MB in the beginning and 161.2 MB in the end (delta: 13.6 MB). Peak memory consumption was 13.6 MB. Max. memory is 7.1 GB. * Symbolic Interpretation took 257.39 ms. Allocated memory is still 198.2 MB. Free memory was 161.2 MB in the beginning and 151.8 MB in the end (delta: 9.4 MB). Peak memory consumption was 9.4 MB. Max. memory is 7.1 GB. RESULT: Ultimate proved your program to be correct! Received shutdown request...