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/programs/toy/tooDifficultLoopInvariant/HiddenEquality-Safe.bpl -------------------------------------------------------------------------------- This is Ultimate 0.1.24-b03553c [2019-08-05 18:12:18,733 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-08-05 18:12:18,735 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-08-05 18:12:18,748 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-08-05 18:12:18,748 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-08-05 18:12:18,750 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-08-05 18:12:18,751 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-08-05 18:12:18,753 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-08-05 18:12:18,754 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-08-05 18:12:18,755 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-08-05 18:12:18,756 INFO L181 SettingsManager]: Resetting Symbolic Interpretation preferences to default values [2019-08-05 18:12:18,757 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-08-05 18:12:18,757 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-08-05 18:12:18,758 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-08-05 18:12:18,759 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-08-05 18:12:18,760 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-08-05 18:12:18,761 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-08-05 18:12:18,762 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-08-05 18:12:18,764 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-08-05 18:12:18,765 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-08-05 18:12:18,767 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-08-05 18:12:18,768 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-08-05 18:12:18,769 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-08-05 18:12:18,770 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-08-05 18:12:18,772 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-08-05 18:12:18,773 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-08-05 18:12:18,773 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-08-05 18:12:18,774 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-08-05 18:12:18,774 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-08-05 18:12:18,775 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-08-05 18:12:18,775 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-08-05 18:12:18,776 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-08-05 18:12:18,777 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-08-05 18:12:18,778 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-08-05 18:12:18,779 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-08-05 18:12:18,779 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-08-05 18:12:18,780 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-08-05 18:12:18,780 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-08-05 18:12:18,780 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-08-05 18:12:18,781 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-08-05 18:12:18,781 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-08-05 18:12:18,808 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-08-05 18:12:18,820 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-08-05 18:12:18,823 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-08-05 18:12:18,825 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2019-08-05 18:12:18,825 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2019-08-05 18:12:18,826 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/toy/tooDifficultLoopInvariant/HiddenEquality-Safe.bpl [2019-08-05 18:12:18,826 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/toy/tooDifficultLoopInvariant/HiddenEquality-Safe.bpl' [2019-08-05 18:12:18,857 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-08-05 18:12:18,859 INFO L131 ToolchainWalker]: Walking toolchain with 3 elements. [2019-08-05 18:12:18,859 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-08-05 18:12:18,859 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-08-05 18:12:18,860 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-08-05 18:12:18,882 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "HiddenEquality-Safe.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 06:12:18" (1/1) ... [2019-08-05 18:12:18,884 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "HiddenEquality-Safe.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 06:12:18" (1/1) ... [2019-08-05 18:12:18,891 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "HiddenEquality-Safe.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 06:12:18" (1/1) ... [2019-08-05 18:12:18,891 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "HiddenEquality-Safe.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 06:12:18" (1/1) ... [2019-08-05 18:12:18,893 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "HiddenEquality-Safe.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 06:12:18" (1/1) ... [2019-08-05 18:12:18,897 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "HiddenEquality-Safe.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 06:12:18" (1/1) ... [2019-08-05 18:12:18,897 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "HiddenEquality-Safe.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 06:12:18" (1/1) ... [2019-08-05 18:12:18,899 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-08-05 18:12:18,900 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-08-05 18:12:18,900 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-08-05 18:12:18,900 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-08-05 18:12:18,901 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "HiddenEquality-Safe.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 06:12:18" (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 18:12:18,967 INFO L124 BoogieDeclarations]: Specification and implementation of procedure main given in one single declaration [2019-08-05 18:12:18,967 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-08-05 18:12:18,967 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-08-05 18:12:19,204 INFO L275 CfgBuilder]: Using library mode [2019-08-05 18:12:19,205 INFO L283 CfgBuilder]: Removed 1 assume(true) statements. [2019-08-05 18:12:19,206 INFO L202 PluginConnector]: Adding new model HiddenEquality-Safe.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.08 06:12:19 BoogieIcfgContainer [2019-08-05 18:12:19,206 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-08-05 18:12:19,207 INFO L113 PluginConnector]: ------------------------Symbolic Interpretation---------------------------- [2019-08-05 18:12:19,207 INFO L271 PluginConnector]: Initializing Symbolic Interpretation... [2019-08-05 18:12:19,207 INFO L275 PluginConnector]: Symbolic Interpretation initialized [2019-08-05 18:12:19,208 INFO L185 PluginConnector]: Executing the observer SymbolicInterpretationObserver from plugin Symbolic Interpretation for "HiddenEquality-Safe.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.08 06:12:19" (1/1) ... [2019-08-05 18:12:19,221 INFO L148 IcfgInterpreter]: Started Sifa with 1 locations of interest [2019-08-05 18:12:19,226 INFO L155 IcfgInterpreter]: Building call graph [2019-08-05 18:12:19,238 INFO L160 IcfgInterpreter]: Initial procedures are [main] [2019-08-05 18:12:19,247 INFO L165 IcfgInterpreter]: Starting interpretation [2019-08-05 18:12:19,249 INFO L185 IcfgInterpreter]: Interpreting procedure main with input of size 1 [2019-08-05 18:12:19,361 INFO L169 IcfgInterpreter]: Interpretation finished [2019-08-05 18:12:19,361 INFO L177 IcfgInterpreter]: Final predicates for locations of interest are: [2019-08-05 18:12:19,364 INFO L179 IcfgInterpreter]: Location mainErr0ASSERT_VIOLATIONASSERT has predicate 23#(and (not (= main_y 100)) (= main_x 100)) [2019-08-05 18:12:19,365 WARN L88 terpretationObserver]: Some locations of interest might be reachable, see reported results. [2019-08-05 18:12:19,372 INFO L132 PluginConnector]: ------------------------ END Symbolic Interpretation---------------------------- [2019-08-05 18:12:19,375 INFO L168 Benchmark]: Toolchain (without parser) took 515.22 ms. Allocated memory is still 131.6 MB. Free memory was 108.0 MB in the beginning and 91.8 MB in the end (delta: 16.2 MB). Peak memory consumption was 16.2 MB. Max. memory is 7.1 GB. [2019-08-05 18:12:19,376 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.22 ms. Allocated memory is still 131.6 MB. Free memory was 109.3 MB in the beginning and 109.0 MB in the end (delta: 209.9 kB). Peak memory consumption was 209.9 kB. Max. memory is 7.1 GB. [2019-08-05 18:12:19,378 INFO L168 Benchmark]: Boogie Preprocessor took 39.68 ms. Allocated memory is still 131.6 MB. Free memory was 108.0 MB in the beginning and 105.8 MB in the end (delta: 2.2 MB). Peak memory consumption was 2.2 MB. Max. memory is 7.1 GB. [2019-08-05 18:12:19,379 INFO L168 Benchmark]: RCFGBuilder took 306.85 ms. Allocated memory is still 131.6 MB. Free memory was 105.8 MB in the beginning and 96.9 MB in the end (delta: 8.9 MB). Peak memory consumption was 8.9 MB. Max. memory is 7.1 GB. [2019-08-05 18:12:19,380 INFO L168 Benchmark]: Symbolic Interpretation took 165.42 ms. Allocated memory is still 131.6 MB. Free memory was 96.9 MB in the beginning and 91.8 MB in the end (delta: 5.1 MB). Peak memory consumption was 5.1 MB. Max. memory is 7.1 GB. [2019-08-05 18:12:19,386 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.symbolicinterpretation: - UnprovableResult [Line: 29]: 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 0.22 ms. Allocated memory is still 131.6 MB. Free memory was 109.3 MB in the beginning and 109.0 MB in the end (delta: 209.9 kB). Peak memory consumption was 209.9 kB. Max. memory is 7.1 GB. * Boogie Preprocessor took 39.68 ms. Allocated memory is still 131.6 MB. Free memory was 108.0 MB in the beginning and 105.8 MB in the end (delta: 2.2 MB). Peak memory consumption was 2.2 MB. Max. memory is 7.1 GB. * RCFGBuilder took 306.85 ms. Allocated memory is still 131.6 MB. Free memory was 105.8 MB in the beginning and 96.9 MB in the end (delta: 8.9 MB). Peak memory consumption was 8.9 MB. Max. memory is 7.1 GB. * Symbolic Interpretation took 165.42 ms. Allocated memory is still 131.6 MB. Free memory was 96.9 MB in the beginning and 91.8 MB in the end (delta: 5.1 MB). Peak memory consumption was 5.1 MB. Max. memory is 7.1 GB. RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request...