java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/Sifa.xml -i ../../../trunk/examples/BoogiePL/schaetzc/backtranslation/DirectReturn.bpl -------------------------------------------------------------------------------- This is Ultimate 0.1.24-b03553c [2019-08-05 18:06:06,358 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-08-05 18:06:06,360 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-08-05 18:06:06,378 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-08-05 18:06:06,379 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-08-05 18:06:06,380 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-08-05 18:06:06,382 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-08-05 18:06:06,384 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-08-05 18:06:06,386 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-08-05 18:06:06,389 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-08-05 18:06:06,390 INFO L181 SettingsManager]: Resetting Symbolic Interpretation preferences to default values [2019-08-05 18:06:06,391 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-08-05 18:06:06,392 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-08-05 18:06:06,393 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-08-05 18:06:06,401 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-08-05 18:06:06,404 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-08-05 18:06:06,406 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-08-05 18:06:06,408 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-08-05 18:06:06,410 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-08-05 18:06:06,412 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-08-05 18:06:06,413 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-08-05 18:06:06,415 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-08-05 18:06:06,416 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-08-05 18:06:06,417 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-08-05 18:06:06,419 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-08-05 18:06:06,419 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-08-05 18:06:06,419 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-08-05 18:06:06,420 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-08-05 18:06:06,421 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-08-05 18:06:06,424 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-08-05 18:06:06,424 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-08-05 18:06:06,425 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-08-05 18:06:06,426 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-08-05 18:06:06,427 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-08-05 18:06:06,428 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-08-05 18:06:06,429 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-08-05 18:06:06,430 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-08-05 18:06:06,431 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-08-05 18:06:06,431 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-08-05 18:06:06,432 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-08-05 18:06:06,434 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-08-05 18:06:06,471 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-08-05 18:06:06,483 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-08-05 18:06:06,486 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-08-05 18:06:06,488 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2019-08-05 18:06:06,488 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2019-08-05 18:06:06,489 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/BoogiePL/schaetzc/backtranslation/DirectReturn.bpl [2019-08-05 18:06:06,490 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/BoogiePL/schaetzc/backtranslation/DirectReturn.bpl' [2019-08-05 18:06:06,519 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-08-05 18:06:06,520 INFO L131 ToolchainWalker]: Walking toolchain with 3 elements. [2019-08-05 18:06:06,521 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-08-05 18:06:06,521 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-08-05 18:06:06,521 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-08-05 18:06:06,543 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "DirectReturn.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 06:06:06" (1/1) ... [2019-08-05 18:06:06,545 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "DirectReturn.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 06:06:06" (1/1) ... [2019-08-05 18:06:06,549 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "DirectReturn.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 06:06:06" (1/1) ... [2019-08-05 18:06:06,549 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "DirectReturn.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 06:06:06" (1/1) ... [2019-08-05 18:06:06,551 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "DirectReturn.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 06:06:06" (1/1) ... [2019-08-05 18:06:06,552 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "DirectReturn.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 06:06:06" (1/1) ... [2019-08-05 18:06:06,553 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "DirectReturn.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 06:06:06" (1/1) ... [2019-08-05 18:06:06,554 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-08-05 18:06:06,555 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-08-05 18:06:06,555 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-08-05 18:06:06,555 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-08-05 18:06:06,556 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "DirectReturn.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 06:06:06" (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:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-08-05 18:06:06,620 INFO L124 BoogieDeclarations]: Specification and implementation of procedure a given in one single declaration [2019-08-05 18:06:06,620 INFO L130 BoogieDeclarations]: Found specification of procedure a [2019-08-05 18:06:06,621 INFO L138 BoogieDeclarations]: Found implementation of procedure a [2019-08-05 18:06:06,621 INFO L124 BoogieDeclarations]: Specification and implementation of procedure bb given in one single declaration [2019-08-05 18:06:06,621 INFO L130 BoogieDeclarations]: Found specification of procedure bb [2019-08-05 18:06:06,621 INFO L138 BoogieDeclarations]: Found implementation of procedure bb [2019-08-05 18:06:06,622 INFO L124 BoogieDeclarations]: Specification and implementation of procedure b given in one single declaration [2019-08-05 18:06:06,622 INFO L130 BoogieDeclarations]: Found specification of procedure b [2019-08-05 18:06:06,622 INFO L138 BoogieDeclarations]: Found implementation of procedure b [2019-08-05 18:06:06,773 INFO L275 CfgBuilder]: Using library mode [2019-08-05 18:06:06,774 INFO L283 CfgBuilder]: Removed 0 assume(true) statements. [2019-08-05 18:06:06,775 INFO L202 PluginConnector]: Adding new model DirectReturn.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.08 06:06:06 BoogieIcfgContainer [2019-08-05 18:06:06,776 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-08-05 18:06:06,776 INFO L113 PluginConnector]: ------------------------Symbolic Interpretation---------------------------- [2019-08-05 18:06:06,776 INFO L271 PluginConnector]: Initializing Symbolic Interpretation... [2019-08-05 18:06:06,777 INFO L275 PluginConnector]: Symbolic Interpretation initialized [2019-08-05 18:06:06,778 INFO L185 PluginConnector]: Executing the observer SymbolicInterpretationObserver from plugin Symbolic Interpretation for "DirectReturn.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.08 06:06:06" (1/1) ... [2019-08-05 18:06:06,790 INFO L148 IcfgInterpreter]: Started Sifa with 2 locations of interest [2019-08-05 18:06:06,793 INFO L155 IcfgInterpreter]: Building call graph [2019-08-05 18:06:06,802 INFO L160 IcfgInterpreter]: Initial procedures are [a, bb, b] [2019-08-05 18:06:06,814 INFO L165 IcfgInterpreter]: Starting interpretation [2019-08-05 18:06:06,816 INFO L185 IcfgInterpreter]: Interpreting procedure a with input of size 1 [2019-08-05 18:06:06,889 INFO L185 IcfgInterpreter]: Interpreting procedure bb with input of size 1 [2019-08-05 18:06:06,890 INFO L185 IcfgInterpreter]: Interpreting procedure b with input of size 1 [2019-08-05 18:06:06,891 INFO L169 IcfgInterpreter]: Interpretation finished [2019-08-05 18:06:06,891 INFO L177 IcfgInterpreter]: Final predicates for locations of interest are: [2019-08-05 18:06:06,894 INFO L179 IcfgInterpreter]: Location bErr0ASSERT_VIOLATIONASSERT has predicate 26#false [2019-08-05 18:06:06,895 INFO L179 IcfgInterpreter]: Location aErr0ASSERT_VIOLATIONASSERT has predicate 14#true [2019-08-05 18:06:06,896 WARN L88 terpretationObserver]: Some locations of interest might be reachable, see reported results. [2019-08-05 18:06:06,906 INFO L132 PluginConnector]: ------------------------ END Symbolic Interpretation---------------------------- [2019-08-05 18:06:06,909 INFO L168 Benchmark]: Toolchain (without parser) took 387.77 ms. Allocated memory is still 138.9 MB. Free memory was 107.3 MB in the beginning and 92.2 MB in the end (delta: 15.2 MB). Peak memory consumption was 15.2 MB. Max. memory is 7.1 GB. [2019-08-05 18:06:06,910 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.21 ms. Allocated memory is still 138.9 MB. Free memory is still 108.2 MB. There was no memory consumed. Max. memory is 7.1 GB. [2019-08-05 18:06:06,913 INFO L168 Benchmark]: Boogie Preprocessor took 33.54 ms. Allocated memory is still 138.9 MB. Free memory was 107.3 MB in the beginning and 105.2 MB in the end (delta: 2.2 MB). Peak memory consumption was 2.2 MB. Max. memory is 7.1 GB. [2019-08-05 18:06:06,914 INFO L168 Benchmark]: RCFGBuilder took 220.73 ms. Allocated memory is still 138.9 MB. Free memory was 105.2 MB in the beginning and 96.4 MB in the end (delta: 8.8 MB). Peak memory consumption was 8.8 MB. Max. memory is 7.1 GB. [2019-08-05 18:06:06,917 INFO L168 Benchmark]: Symbolic Interpretation took 130.41 ms. Allocated memory is still 138.9 MB. Free memory was 96.4 MB in the beginning and 92.2 MB in the end (delta: 4.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 7.1 GB. [2019-08-05 18:06:06,924 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.symbolicinterpretation: - PositiveResult [Line: 19]: assertion always holds For all program executions holds that assertion always holds at this location - UnprovableResult [Line: 7]: Unable to prove that assertion always holds Unable to prove that assertion always holds Reason: Interpreter reached this location of interest. Location might be reachable.. Possible FailurePath: * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * Boogie PL CUP Parser took 0.21 ms. Allocated memory is still 138.9 MB. Free memory is still 108.2 MB. There was no memory consumed. Max. memory is 7.1 GB. * Boogie Preprocessor took 33.54 ms. Allocated memory is still 138.9 MB. Free memory was 107.3 MB in the beginning and 105.2 MB in the end (delta: 2.2 MB). Peak memory consumption was 2.2 MB. Max. memory is 7.1 GB. * RCFGBuilder took 220.73 ms. Allocated memory is still 138.9 MB. Free memory was 105.2 MB in the beginning and 96.4 MB in the end (delta: 8.8 MB). Peak memory consumption was 8.8 MB. Max. memory is 7.1 GB. * Symbolic Interpretation took 130.41 ms. Allocated memory is still 138.9 MB. Free memory was 96.4 MB in the beginning and 92.2 MB in the end (delta: 4.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 7.1 GB. RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request...