java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AbstractInterpretationC.xml -s ../../../trunk/examples/settings/ai/svcomp-Reach-32bit-Automizer_Default+AIv2_INT.epf -i ../../../trunk/examples/svcomp/ldv-regression/alias_of_return_2.i -------------------------------------------------------------------------------- This is Ultimate 0.1.24-fea9116 [2019-09-20 13:48:41,765 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-09-20 13:48:41,766 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-09-20 13:48:41,778 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-09-20 13:48:41,778 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-09-20 13:48:41,779 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-09-20 13:48:41,780 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-09-20 13:48:41,782 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-09-20 13:48:41,784 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-09-20 13:48:41,785 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-09-20 13:48:41,786 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-09-20 13:48:41,787 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-09-20 13:48:41,787 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-09-20 13:48:41,788 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-09-20 13:48:41,789 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-09-20 13:48:41,790 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-09-20 13:48:41,791 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-09-20 13:48:41,791 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-09-20 13:48:41,793 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-09-20 13:48:41,796 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-09-20 13:48:41,799 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-09-20 13:48:41,801 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-09-20 13:48:41,802 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-09-20 13:48:41,803 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-09-20 13:48:41,806 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-09-20 13:48:41,806 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-09-20 13:48:41,806 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-09-20 13:48:41,807 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-09-20 13:48:41,807 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-09-20 13:48:41,808 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-09-20 13:48:41,808 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-09-20 13:48:41,809 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-09-20 13:48:41,809 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-09-20 13:48:41,810 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-09-20 13:48:41,811 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-09-20 13:48:41,811 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-09-20 13:48:41,812 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-09-20 13:48:41,812 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-09-20 13:48:41,812 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-09-20 13:48:41,813 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-09-20 13:48:41,814 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-09-20 13:48:41,815 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/ai/svcomp-Reach-32bit-Automizer_Default+AIv2_INT.epf [2019-09-20 13:48:41,829 INFO L113 SettingsManager]: Loading preferences was successful [2019-09-20 13:48:41,829 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-09-20 13:48:41,829 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2019-09-20 13:48:41,829 INFO L138 SettingsManager]: * Log level for plugins=info [2019-09-20 13:48:41,830 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-09-20 13:48:41,830 INFO L138 SettingsManager]: * User list type=DISABLED [2019-09-20 13:48:41,830 INFO L138 SettingsManager]: * Ignore calls to and inside polymorphic procedures=false [2019-09-20 13:48:41,831 INFO L138 SettingsManager]: * Ignore calls to recursive procedures=false [2019-09-20 13:48:41,831 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-09-20 13:48:41,831 INFO L138 SettingsManager]: * Abstract domain=IntervalDomain [2019-09-20 13:48:41,832 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-09-20 13:48:41,832 INFO L138 SettingsManager]: * sizeof long=4 [2019-09-20 13:48:41,832 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-09-20 13:48:41,832 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-09-20 13:48:41,832 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-09-20 13:48:41,833 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-09-20 13:48:41,833 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-09-20 13:48:41,833 INFO L138 SettingsManager]: * sizeof long double=12 [2019-09-20 13:48:41,833 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-09-20 13:48:41,833 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-09-20 13:48:41,834 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-09-20 13:48:41,834 INFO L138 SettingsManager]: * Remove goto edges from RCFG=true [2019-09-20 13:48:41,834 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-09-20 13:48:41,834 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-20 13:48:41,834 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-09-20 13:48:41,835 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-09-20 13:48:41,835 INFO L138 SettingsManager]: * Trace refinement strategy=TAIPAN [2019-09-20 13:48:41,835 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-09-20 13:48:41,835 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-09-20 13:48:41,835 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2019-09-20 13:48:41,866 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-09-20 13:48:41,885 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-09-20 13:48:41,889 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-09-20 13:48:41,890 INFO L271 PluginConnector]: Initializing CDTParser... [2019-09-20 13:48:41,891 INFO L275 PluginConnector]: CDTParser initialized [2019-09-20 13:48:41,892 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-regression/alias_of_return_2.i [2019-09-20 13:48:41,963 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fb903ebab/157b3f8df45a4a2da84def00ba76f9c0/FLAGc23f78e97 [2019-09-20 13:48:42,383 INFO L306 CDTParser]: Found 1 translation units. [2019-09-20 13:48:42,383 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-regression/alias_of_return_2.i [2019-09-20 13:48:42,390 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fb903ebab/157b3f8df45a4a2da84def00ba76f9c0/FLAGc23f78e97 [2019-09-20 13:48:42,780 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fb903ebab/157b3f8df45a4a2da84def00ba76f9c0 [2019-09-20 13:48:42,789 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-09-20 13:48:42,790 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-09-20 13:48:42,791 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-09-20 13:48:42,792 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-09-20 13:48:42,795 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-09-20 13:48:42,796 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 01:48:42" (1/1) ... [2019-09-20 13:48:42,799 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@75b5ab66 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:48:42, skipping insertion in model container [2019-09-20 13:48:42,799 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 01:48:42" (1/1) ... [2019-09-20 13:48:42,806 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-09-20 13:48:42,822 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-09-20 13:48:42,989 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-20 13:48:43,001 INFO L188 MainTranslator]: Completed pre-run [2019-09-20 13:48:43,017 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-20 13:48:43,034 INFO L192 MainTranslator]: Completed translation [2019-09-20 13:48:43,034 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:48:43 WrapperNode [2019-09-20 13:48:43,034 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-09-20 13:48:43,035 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-09-20 13:48:43,035 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-09-20 13:48:43,035 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-09-20 13:48:43,049 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:48:43" (1/1) ... [2019-09-20 13:48:43,049 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:48:43" (1/1) ... [2019-09-20 13:48:43,056 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:48:43" (1/1) ... [2019-09-20 13:48:43,057 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:48:43" (1/1) ... [2019-09-20 13:48:43,061 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:48:43" (1/1) ... [2019-09-20 13:48:43,062 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:48:43" (1/1) ... [2019-09-20 13:48:43,063 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:48:43" (1/1) ... [2019-09-20 13:48:43,064 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-09-20 13:48:43,065 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-09-20 13:48:43,065 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-09-20 13:48:43,065 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-09-20 13:48:43,066 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:48:43" (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 [2019-09-20 13:48:43,205 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-09-20 13:48:43,205 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-09-20 13:48:43,205 INFO L138 BoogieDeclarations]: Found implementation of procedure err [2019-09-20 13:48:43,205 INFO L138 BoogieDeclarations]: Found implementation of procedure return_self [2019-09-20 13:48:43,205 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-09-20 13:48:43,205 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-09-20 13:48:43,206 INFO L130 BoogieDeclarations]: Found specification of procedure err [2019-09-20 13:48:43,206 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-09-20 13:48:43,206 INFO L130 BoogieDeclarations]: Found specification of procedure return_self [2019-09-20 13:48:43,206 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-09-20 13:48:43,206 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-09-20 13:48:43,207 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-09-20 13:48:43,207 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-09-20 13:48:43,208 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-09-20 13:48:43,208 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-09-20 13:48:43,208 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-09-20 13:48:43,405 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-09-20 13:48:43,405 INFO L283 CfgBuilder]: Removed 0 assume(true) statements. [2019-09-20 13:48:43,407 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 01:48:43 BoogieIcfgContainer [2019-09-20 13:48:43,408 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-09-20 13:48:43,409 INFO L113 PluginConnector]: ------------------------Abstract Interpretation---------------------------- [2019-09-20 13:48:43,410 INFO L271 PluginConnector]: Initializing Abstract Interpretation... [2019-09-20 13:48:43,410 INFO L275 PluginConnector]: Abstract Interpretation initialized [2019-09-20 13:48:43,413 INFO L185 PluginConnector]: Executing the observer AbstractInterpretationRcfgObserver from plugin Abstract Interpretation for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 01:48:43" (1/1) ... [2019-09-20 13:48:43,462 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=2) [2019-09-20 13:48:43,524 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2019-09-20 13:48:43,529 INFO L272 AbstractInterpreter]: Visited 6 different actions 6 times. Never merged. Never widened. Performed 15 root evaluator evaluations with a maximum evaluation depth of 0. Performed 15 inverse root evaluator evaluations with a maximum inverse evaluation depth of 0. Never found a fixpoint. Largest state had 20 variables. [2019-09-20 13:48:43,529 INFO L132 PluginConnector]: ------------------------ END Abstract Interpretation---------------------------- [2019-09-20 13:48:43,532 INFO L168 Benchmark]: Toolchain (without parser) took 740.24 ms. Allocated memory was 138.9 MB in the beginning and 199.2 MB in the end (delta: 60.3 MB). Free memory was 87.1 MB in the beginning and 159.2 MB in the end (delta: -72.1 MB). There was no memory consumed. Max. memory is 7.1 GB. [2019-09-20 13:48:43,533 INFO L168 Benchmark]: CDTParser took 1.09 ms. Allocated memory is still 138.9 MB. Free memory was 104.8 MB in the beginning and 104.6 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. [2019-09-20 13:48:43,534 INFO L168 Benchmark]: CACSL2BoogieTranslator took 243.35 ms. Allocated memory is still 138.9 MB. Free memory was 86.7 MB in the beginning and 77.2 MB in the end (delta: 9.4 MB). Peak memory consumption was 9.4 MB. Max. memory is 7.1 GB. [2019-09-20 13:48:43,535 INFO L168 Benchmark]: Boogie Preprocessor took 29.40 ms. Allocated memory is still 138.9 MB. Free memory was 77.2 MB in the beginning and 75.6 MB in the end (delta: 1.6 MB). Peak memory consumption was 1.6 MB. Max. memory is 7.1 GB. [2019-09-20 13:48:43,537 INFO L168 Benchmark]: RCFGBuilder took 343.71 ms. Allocated memory was 138.9 MB in the beginning and 199.2 MB in the end (delta: 60.3 MB). Free memory was 75.6 MB in the beginning and 164.3 MB in the end (delta: -88.6 MB). Peak memory consumption was 11.3 MB. Max. memory is 7.1 GB. [2019-09-20 13:48:43,538 INFO L168 Benchmark]: Abstract Interpretation took 119.79 ms. Allocated memory is still 199.2 MB. Free memory was 164.3 MB in the beginning and 159.2 MB in the end (delta: 5.1 MB). Peak memory consumption was 5.1 MB. Max. memory is 7.1 GB. [2019-09-20 13:48:43,542 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.09 ms. Allocated memory is still 138.9 MB. Free memory was 104.8 MB in the beginning and 104.6 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 243.35 ms. Allocated memory is still 138.9 MB. Free memory was 86.7 MB in the beginning and 77.2 MB in the end (delta: 9.4 MB). Peak memory consumption was 9.4 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 29.40 ms. Allocated memory is still 138.9 MB. Free memory was 77.2 MB in the beginning and 75.6 MB in the end (delta: 1.6 MB). Peak memory consumption was 1.6 MB. Max. memory is 7.1 GB. * RCFGBuilder took 343.71 ms. Allocated memory was 138.9 MB in the beginning and 199.2 MB in the end (delta: 60.3 MB). Free memory was 75.6 MB in the beginning and 164.3 MB in the end (delta: -88.6 MB). Peak memory consumption was 11.3 MB. Max. memory is 7.1 GB. * Abstract Interpretation took 119.79 ms. Allocated memory is still 199.2 MB. Free memory was 164.3 MB in the beginning and 159.2 MB in the end (delta: 5.1 MB). Peak memory consumption was 5.1 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2: - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - PositiveResult [Line: 8]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location RESULT: Ultimate proved your program to be correct! Received shutdown request...