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.i -------------------------------------------------------------------------------- This is Ultimate 0.1.24-55cd5f5 [2019-08-14 20:13:34,210 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-08-14 20:13:34,212 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-08-14 20:13:34,224 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-08-14 20:13:34,225 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-08-14 20:13:34,226 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-08-14 20:13:34,227 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-08-14 20:13:34,229 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-08-14 20:13:34,230 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-08-14 20:13:34,231 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-08-14 20:13:34,232 INFO L181 SettingsManager]: Resetting Symbolic Interpretation preferences to default values [2019-08-14 20:13:34,233 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-08-14 20:13:34,234 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-08-14 20:13:34,235 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-08-14 20:13:34,236 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-08-14 20:13:34,237 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-08-14 20:13:34,238 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-08-14 20:13:34,239 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-08-14 20:13:34,241 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-08-14 20:13:34,243 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-08-14 20:13:34,245 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-08-14 20:13:34,246 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-08-14 20:13:34,247 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-08-14 20:13:34,248 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-08-14 20:13:34,251 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-08-14 20:13:34,254 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-08-14 20:13:34,255 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-08-14 20:13:34,256 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-08-14 20:13:34,257 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-08-14 20:13:34,258 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-08-14 20:13:34,258 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-08-14 20:13:34,259 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-08-14 20:13:34,259 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-08-14 20:13:34,260 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-08-14 20:13:34,261 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-08-14 20:13:34,261 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-08-14 20:13:34,262 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 [2019-08-14 20:13:34,278 INFO L113 SettingsManager]: Loading preferences was successful [2019-08-14 20:13:34,278 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-08-14 20:13:34,280 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-08-14 20:13:34,280 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-08-14 20:13:34,280 INFO L138 SettingsManager]: * Use SBE=true [2019-08-14 20:13:34,280 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-08-14 20:13:34,280 INFO L138 SettingsManager]: * sizeof long=4 [2019-08-14 20:13:34,281 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-08-14 20:13:34,281 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-08-14 20:13:34,281 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-08-14 20:13:34,281 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-08-14 20:13:34,281 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-08-14 20:13:34,282 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-08-14 20:13:34,282 INFO L138 SettingsManager]: * sizeof long double=12 [2019-08-14 20:13:34,282 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-08-14 20:13:34,282 INFO L138 SettingsManager]: * Use constant arrays=true [2019-08-14 20:13:34,282 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-08-14 20:13:34,283 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-08-14 20:13:34,283 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-08-14 20:13:34,283 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-08-14 20:13:34,283 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-08-14 20:13:34,283 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-08-14 20:13:34,284 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-08-14 20:13:34,284 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-08-14 20:13:34,284 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-08-14 20:13:34,284 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-08-14 20:13:34,284 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-08-14 20:13:34,285 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-08-14 20:13:34,285 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-08-14 20:13:34,317 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-08-14 20:13:34,330 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-08-14 20:13:34,333 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-08-14 20:13:34,335 INFO L271 PluginConnector]: Initializing CDTParser... [2019-08-14 20:13:34,335 INFO L275 PluginConnector]: CDTParser initialized [2019-08-14 20:13:34,336 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-regression/alias_of_return.i [2019-08-14 20:13:34,397 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/78a23ec73/1cd8838246c44d92a8649eae234e216c/FLAGd0098c853 [2019-08-14 20:13:34,837 INFO L306 CDTParser]: Found 1 translation units. [2019-08-14 20:13:34,840 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-regression/alias_of_return.i [2019-08-14 20:13:34,847 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/78a23ec73/1cd8838246c44d92a8649eae234e216c/FLAGd0098c853 [2019-08-14 20:13:35,235 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/78a23ec73/1cd8838246c44d92a8649eae234e216c [2019-08-14 20:13:35,252 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-08-14 20:13:35,254 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-08-14 20:13:35,255 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-08-14 20:13:35,255 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-08-14 20:13:35,259 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-08-14 20:13:35,260 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.08 08:13:35" (1/1) ... [2019-08-14 20:13:35,264 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@c14ca86 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.08 08:13:35, skipping insertion in model container [2019-08-14 20:13:35,264 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.08 08:13:35" (1/1) ... [2019-08-14 20:13:35,272 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-08-14 20:13:35,290 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-08-14 20:13:35,504 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-08-14 20:13:35,516 INFO L188 MainTranslator]: Completed pre-run [2019-08-14 20:13:35,532 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-08-14 20:13:35,551 INFO L192 MainTranslator]: Completed translation [2019-08-14 20:13:35,551 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.08 08:13:35 WrapperNode [2019-08-14 20:13:35,552 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-08-14 20:13:35,553 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-08-14 20:13:35,553 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-08-14 20:13:35,553 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-08-14 20:13:35,569 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.08 08:13:35" (1/1) ... [2019-08-14 20:13:35,569 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.08 08:13:35" (1/1) ... [2019-08-14 20:13:35,696 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.08 08:13:35" (1/1) ... [2019-08-14 20:13:35,698 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.08 08:13:35" (1/1) ... [2019-08-14 20:13:35,705 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.08 08:13:35" (1/1) ... [2019-08-14 20:13:35,707 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.08 08:13:35" (1/1) ... [2019-08-14 20:13:35,709 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.08 08:13:35" (1/1) ... [2019-08-14 20:13:35,711 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-08-14 20:13:35,712 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-08-14 20:13:35,712 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-08-14 20:13:35,712 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-08-14 20:13:35,713 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.08 08:13:35" (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 [2019-08-14 20:13:35,784 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-08-14 20:13:35,784 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-08-14 20:13:35,784 INFO L138 BoogieDeclarations]: Found implementation of procedure err [2019-08-14 20:13:35,785 INFO L138 BoogieDeclarations]: Found implementation of procedure return_self [2019-08-14 20:13:35,785 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-08-14 20:13:35,785 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-08-14 20:13:35,785 INFO L130 BoogieDeclarations]: Found specification of procedure err [2019-08-14 20:13:35,786 INFO L130 BoogieDeclarations]: Found specification of procedure return_self [2019-08-14 20:13:35,786 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-08-14 20:13:35,786 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-08-14 20:13:35,786 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-08-14 20:13:35,786 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-08-14 20:13:35,787 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-08-14 20:13:35,787 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-08-14 20:13:35,788 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-08-14 20:13:36,038 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-08-14 20:13:36,038 INFO L283 CfgBuilder]: Removed 0 assume(true) statements. [2019-08-14 20:13:36,040 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.08 08:13:36 BoogieIcfgContainer [2019-08-14 20:13:36,040 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-08-14 20:13:36,041 INFO L113 PluginConnector]: ------------------------Symbolic Interpretation---------------------------- [2019-08-14 20:13:36,041 INFO L271 PluginConnector]: Initializing Symbolic Interpretation... [2019-08-14 20:13:36,041 INFO L275 PluginConnector]: Symbolic Interpretation initialized [2019-08-14 20:13:36,044 INFO L185 PluginConnector]: Executing the observer SymbolicInterpretationObserver from plugin Symbolic Interpretation for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.08 08:13:36" (1/1) ... [2019-08-14 20:13:36,287 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-08-14 20:13:36,301 INFO L132 PluginConnector]: ------------------------ END Symbolic Interpretation---------------------------- [2019-08-14 20:13:36,303 INFO L168 Benchmark]: Toolchain (without parser) took 1048.78 ms. Allocated memory was 133.7 MB in the beginning and 200.3 MB in the end (delta: 66.6 MB). Free memory was 85.3 MB in the beginning and 155.3 MB in the end (delta: -70.0 MB). There was no memory consumed. Max. memory is 7.1 GB. [2019-08-14 20:13:36,304 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 133.7 MB. Free memory is still 103.6 MB. There was no memory consumed. Max. memory is 7.1 GB. [2019-08-14 20:13:36,305 INFO L168 Benchmark]: CACSL2BoogieTranslator took 296.83 ms. Allocated memory is still 133.7 MB. Free memory was 85.3 MB in the beginning and 76.2 MB in the end (delta: 9.1 MB). Peak memory consumption was 9.1 MB. Max. memory is 7.1 GB. [2019-08-14 20:13:36,306 INFO L168 Benchmark]: Boogie Preprocessor took 158.98 ms. Allocated memory was 133.7 MB in the beginning and 200.3 MB in the end (delta: 66.6 MB). Free memory was 76.2 MB in the beginning and 178.4 MB in the end (delta: -102.3 MB). Peak memory consumption was 13.9 MB. Max. memory is 7.1 GB. [2019-08-14 20:13:36,307 INFO L168 Benchmark]: RCFGBuilder took 328.18 ms. Allocated memory is still 200.3 MB. Free memory was 178.4 MB in the beginning and 165.5 MB in the end (delta: 12.9 MB). Peak memory consumption was 12.9 MB. Max. memory is 7.1 GB. [2019-08-14 20:13:36,307 INFO L168 Benchmark]: Symbolic Interpretation took 260.44 ms. Allocated memory is still 200.3 MB. Free memory was 165.5 MB in the beginning and 155.3 MB in the end (delta: 10.2 MB). Peak memory consumption was 10.2 MB. Max. memory is 7.1 GB. [2019-08-14 20:13:36,311 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.symbolicinterpretation: - PositiveResult [Line: 8]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 133.7 MB. Free memory is still 103.6 MB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 296.83 ms. Allocated memory is still 133.7 MB. Free memory was 85.3 MB in the beginning and 76.2 MB in the end (delta: 9.1 MB). Peak memory consumption was 9.1 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 158.98 ms. Allocated memory was 133.7 MB in the beginning and 200.3 MB in the end (delta: 66.6 MB). Free memory was 76.2 MB in the beginning and 178.4 MB in the end (delta: -102.3 MB). Peak memory consumption was 13.9 MB. Max. memory is 7.1 GB. * RCFGBuilder took 328.18 ms. Allocated memory is still 200.3 MB. Free memory was 178.4 MB in the beginning and 165.5 MB in the end (delta: 12.9 MB). Peak memory consumption was 12.9 MB. Max. memory is 7.1 GB. * Symbolic Interpretation took 260.44 ms. Allocated memory is still 200.3 MB. Free memory was 165.5 MB in the beginning and 155.3 MB in the end (delta: 10.2 MB). Peak memory consumption was 10.2 MB. Max. memory is 7.1 GB. RESULT: Ultimate proved your program to be correct! Received shutdown request...