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/regression/bpl/interprocedural/BugNestedSsaWithPendingContexts.bpl -------------------------------------------------------------------------------- This is Ultimate 0.1.24-4ddfff8 [2019-08-09 14:19:16,713 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-08-09 14:19:16,715 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-08-09 14:19:16,727 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-08-09 14:19:16,728 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-08-09 14:19:16,729 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-08-09 14:19:16,730 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-08-09 14:19:16,732 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-08-09 14:19:16,734 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-08-09 14:19:16,735 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-08-09 14:19:16,736 INFO L181 SettingsManager]: Resetting Symbolic Interpretation preferences to default values [2019-08-09 14:19:16,737 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-08-09 14:19:16,737 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-08-09 14:19:16,738 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-08-09 14:19:16,739 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-08-09 14:19:16,740 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-08-09 14:19:16,741 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-08-09 14:19:16,742 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-08-09 14:19:16,744 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-08-09 14:19:16,746 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-08-09 14:19:16,748 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-08-09 14:19:16,749 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-08-09 14:19:16,750 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-08-09 14:19:16,751 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-08-09 14:19:16,753 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-08-09 14:19:16,753 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-08-09 14:19:16,754 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-08-09 14:19:16,755 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-08-09 14:19:16,756 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-08-09 14:19:16,758 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-08-09 14:19:16,758 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-08-09 14:19:16,759 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-08-09 14:19:16,761 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-08-09 14:19:16,762 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-08-09 14:19:16,763 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-08-09 14:19:16,763 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-08-09 14:19:16,765 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-08-09 14:19:16,766 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-08-09 14:19:16,766 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-08-09 14:19:16,768 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-08-09 14:19:16,769 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-08-09 14:19:16,816 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-08-09 14:19:16,829 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-08-09 14:19:16,833 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-08-09 14:19:16,834 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2019-08-09 14:19:16,835 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2019-08-09 14:19:16,836 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/regression/bpl/interprocedural/BugNestedSsaWithPendingContexts.bpl [2019-08-09 14:19:16,836 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/regression/bpl/interprocedural/BugNestedSsaWithPendingContexts.bpl' [2019-08-09 14:19:16,873 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-08-09 14:19:16,875 INFO L131 ToolchainWalker]: Walking toolchain with 3 elements. [2019-08-09 14:19:16,876 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-08-09 14:19:16,876 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-08-09 14:19:16,877 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-08-09 14:19:16,902 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "BugNestedSsaWithPendingContexts.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 09.08 02:19:16" (1/1) ... [2019-08-09 14:19:16,905 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "BugNestedSsaWithPendingContexts.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 09.08 02:19:16" (1/1) ... [2019-08-09 14:19:16,912 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "BugNestedSsaWithPendingContexts.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 09.08 02:19:16" (1/1) ... [2019-08-09 14:19:16,912 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "BugNestedSsaWithPendingContexts.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 09.08 02:19:16" (1/1) ... [2019-08-09 14:19:16,917 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "BugNestedSsaWithPendingContexts.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 09.08 02:19:16" (1/1) ... [2019-08-09 14:19:16,923 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "BugNestedSsaWithPendingContexts.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 09.08 02:19:16" (1/1) ... [2019-08-09 14:19:16,924 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "BugNestedSsaWithPendingContexts.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 09.08 02:19:16" (1/1) ... [2019-08-09 14:19:16,925 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-08-09 14:19:16,927 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-08-09 14:19:16,927 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-08-09 14:19:16,927 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-08-09 14:19:16,928 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "BugNestedSsaWithPendingContexts.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 09.08 02:19:16" (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 [2019-08-09 14:19:17,011 INFO L130 BoogieDeclarations]: Found specification of procedure Main [2019-08-09 14:19:17,012 INFO L138 BoogieDeclarations]: Found implementation of procedure Main [2019-08-09 14:19:17,012 INFO L130 BoogieDeclarations]: Found specification of procedure decreaseByOne [2019-08-09 14:19:17,012 INFO L138 BoogieDeclarations]: Found implementation of procedure decreaseByOne [2019-08-09 14:19:17,013 INFO L130 BoogieDeclarations]: Found specification of procedure increaseByTwo [2019-08-09 14:19:17,013 INFO L138 BoogieDeclarations]: Found implementation of procedure increaseByTwo [2019-08-09 14:19:17,172 INFO L275 CfgBuilder]: Using library mode [2019-08-09 14:19:17,172 INFO L283 CfgBuilder]: Removed 1 assume(true) statements. [2019-08-09 14:19:17,173 INFO L202 PluginConnector]: Adding new model BugNestedSsaWithPendingContexts.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.08 02:19:17 BoogieIcfgContainer [2019-08-09 14:19:17,173 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-08-09 14:19:17,174 INFO L113 PluginConnector]: ------------------------Symbolic Interpretation---------------------------- [2019-08-09 14:19:17,174 INFO L271 PluginConnector]: Initializing Symbolic Interpretation... [2019-08-09 14:19:17,174 INFO L275 PluginConnector]: Symbolic Interpretation initialized [2019-08-09 14:19:17,175 INFO L185 PluginConnector]: Executing the observer SymbolicInterpretationObserver from plugin Symbolic Interpretation for "BugNestedSsaWithPendingContexts.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.08 02:19:17" (1/1) ... [2019-08-09 14:19:17,280 WARN L88 terpretationObserver]: Some locations of interest might be reachable, see reported results. [2019-08-09 14:19:17,288 INFO L132 PluginConnector]: ------------------------ END Symbolic Interpretation---------------------------- [2019-08-09 14:19:17,291 INFO L168 Benchmark]: Toolchain (without parser) took 415.27 ms. Allocated memory is still 138.4 MB. Free memory was 106.8 MB in the beginning and 89.9 MB in the end (delta: 16.9 MB). Peak memory consumption was 16.9 MB. Max. memory is 7.1 GB. [2019-08-09 14:19:17,292 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.22 ms. Allocated memory is still 138.4 MB. Free memory was 108.0 MB in the beginning and 107.8 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. [2019-08-09 14:19:17,294 INFO L168 Benchmark]: Boogie Preprocessor took 49.97 ms. Allocated memory is still 138.4 MB. Free memory was 106.8 MB in the beginning and 104.5 MB in the end (delta: 2.2 MB). Peak memory consumption was 2.2 MB. Max. memory is 7.1 GB. [2019-08-09 14:19:17,295 INFO L168 Benchmark]: RCFGBuilder took 246.88 ms. Allocated memory is still 138.4 MB. Free memory was 104.5 MB in the beginning and 94.8 MB in the end (delta: 9.7 MB). Peak memory consumption was 9.7 MB. Max. memory is 7.1 GB. [2019-08-09 14:19:17,296 INFO L168 Benchmark]: Symbolic Interpretation took 113.97 ms. Allocated memory is still 138.4 MB. Free memory was 94.8 MB in the beginning and 89.9 MB in the end (delta: 4.9 MB). Peak memory consumption was 4.9 MB. Max. memory is 7.1 GB. [2019-08-09 14:19:17,300 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.symbolicinterpretation: - UnprovableResult [Line: 23]: 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. Predicate is 22#(not (= increases decreases)). 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 138.4 MB. Free memory was 108.0 MB in the beginning and 107.8 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. * Boogie Preprocessor took 49.97 ms. Allocated memory is still 138.4 MB. Free memory was 106.8 MB in the beginning and 104.5 MB in the end (delta: 2.2 MB). Peak memory consumption was 2.2 MB. Max. memory is 7.1 GB. * RCFGBuilder took 246.88 ms. Allocated memory is still 138.4 MB. Free memory was 104.5 MB in the beginning and 94.8 MB in the end (delta: 9.7 MB). Peak memory consumption was 9.7 MB. Max. memory is 7.1 GB. * Symbolic Interpretation took 113.97 ms. Allocated memory is still 138.4 MB. Free memory was 94.8 MB in the beginning and 89.9 MB in the end (delta: 4.9 MB). Peak memory consumption was 4.9 MB. Max. memory is 7.1 GB. RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request...