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-b03553c [2019-08-05 18:15:32,785 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-08-05 18:15:32,787 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-08-05 18:15:32,798 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-08-05 18:15:32,799 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-08-05 18:15:32,800 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-08-05 18:15:32,801 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-08-05 18:15:32,803 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-08-05 18:15:32,805 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-08-05 18:15:32,805 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-08-05 18:15:32,806 INFO L181 SettingsManager]: Resetting Symbolic Interpretation preferences to default values [2019-08-05 18:15:32,807 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-08-05 18:15:32,808 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-08-05 18:15:32,809 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-08-05 18:15:32,810 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-08-05 18:15:32,811 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-08-05 18:15:32,812 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-08-05 18:15:32,813 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-08-05 18:15:32,815 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-08-05 18:15:32,817 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-08-05 18:15:32,818 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-08-05 18:15:32,820 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-08-05 18:15:32,821 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-08-05 18:15:32,822 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-08-05 18:15:32,824 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-08-05 18:15:32,824 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-08-05 18:15:32,825 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-08-05 18:15:32,826 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-08-05 18:15:32,826 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-08-05 18:15:32,827 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-08-05 18:15:32,827 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-08-05 18:15:32,828 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-08-05 18:15:32,829 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-08-05 18:15:32,830 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-08-05 18:15:32,831 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-08-05 18:15:32,831 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-08-05 18:15:32,832 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-08-05 18:15:32,832 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-08-05 18:15:32,832 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-08-05 18:15:32,833 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-08-05 18:15:32,834 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-08-05 18:15:32,861 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-08-05 18:15:32,873 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-08-05 18:15:32,877 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-08-05 18:15:32,878 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2019-08-05 18:15:32,879 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2019-08-05 18:15:32,879 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/regression/bpl/interprocedural/BugNestedSsaWithPendingContexts.bpl [2019-08-05 18:15:32,880 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/regression/bpl/interprocedural/BugNestedSsaWithPendingContexts.bpl' [2019-08-05 18:15:32,908 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-08-05 18:15:32,910 INFO L131 ToolchainWalker]: Walking toolchain with 3 elements. [2019-08-05 18:15:32,910 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-08-05 18:15:32,910 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-08-05 18:15:32,911 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-08-05 18:15:32,929 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "BugNestedSsaWithPendingContexts.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 06:15:32" (1/1) ... [2019-08-05 18:15:32,931 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "BugNestedSsaWithPendingContexts.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 06:15:32" (1/1) ... [2019-08-05 18:15:32,936 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "BugNestedSsaWithPendingContexts.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 06:15:32" (1/1) ... [2019-08-05 18:15:32,936 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "BugNestedSsaWithPendingContexts.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 06:15:32" (1/1) ... [2019-08-05 18:15:32,939 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "BugNestedSsaWithPendingContexts.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 06:15:32" (1/1) ... [2019-08-05 18:15:32,942 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "BugNestedSsaWithPendingContexts.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 06:15:32" (1/1) ... [2019-08-05 18:15:32,943 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "BugNestedSsaWithPendingContexts.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 06:15:32" (1/1) ... [2019-08-05 18:15:32,944 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-08-05 18:15:32,945 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-08-05 18:15:32,946 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-08-05 18:15:32,946 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-08-05 18:15:32,947 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "BugNestedSsaWithPendingContexts.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 06:15:32" (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 18:15:33,006 INFO L130 BoogieDeclarations]: Found specification of procedure Main [2019-08-05 18:15:33,006 INFO L138 BoogieDeclarations]: Found implementation of procedure Main [2019-08-05 18:15:33,007 INFO L130 BoogieDeclarations]: Found specification of procedure decreaseByOne [2019-08-05 18:15:33,007 INFO L138 BoogieDeclarations]: Found implementation of procedure decreaseByOne [2019-08-05 18:15:33,007 INFO L130 BoogieDeclarations]: Found specification of procedure increaseByTwo [2019-08-05 18:15:33,007 INFO L138 BoogieDeclarations]: Found implementation of procedure increaseByTwo [2019-08-05 18:15:33,188 INFO L275 CfgBuilder]: Using library mode [2019-08-05 18:15:33,189 INFO L283 CfgBuilder]: Removed 1 assume(true) statements. [2019-08-05 18:15:33,190 INFO L202 PluginConnector]: Adding new model BugNestedSsaWithPendingContexts.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.08 06:15:33 BoogieIcfgContainer [2019-08-05 18:15:33,190 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-08-05 18:15:33,191 INFO L113 PluginConnector]: ------------------------Symbolic Interpretation---------------------------- [2019-08-05 18:15:33,191 INFO L271 PluginConnector]: Initializing Symbolic Interpretation... [2019-08-05 18:15:33,191 INFO L275 PluginConnector]: Symbolic Interpretation initialized [2019-08-05 18:15:33,192 INFO L185 PluginConnector]: Executing the observer SymbolicInterpretationObserver from plugin Symbolic Interpretation for "BugNestedSsaWithPendingContexts.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.08 06:15:33" (1/1) ... [2019-08-05 18:15:33,203 INFO L148 IcfgInterpreter]: Started Sifa with 1 locations of interest [2019-08-05 18:15:33,206 INFO L155 IcfgInterpreter]: Building call graph [2019-08-05 18:15:33,213 INFO L160 IcfgInterpreter]: Initial procedures are [Main] [2019-08-05 18:15:33,223 INFO L165 IcfgInterpreter]: Starting interpretation [2019-08-05 18:15:33,224 INFO L185 IcfgInterpreter]: Interpreting procedure Main with input of size 1 [2019-08-05 18:15:33,290 INFO L169 IcfgInterpreter]: Interpretation finished [2019-08-05 18:15:33,291 INFO L177 IcfgInterpreter]: Final predicates for locations of interest are: [2019-08-05 18:15:33,294 INFO L179 IcfgInterpreter]: Location MainErr0ASSERT_VIOLATIONASSERT has predicate 22#(not (= increases decreases)) [2019-08-05 18:15:33,296 WARN L88 terpretationObserver]: Some locations of interest might be reachable, see reported results. [2019-08-05 18:15:33,304 INFO L132 PluginConnector]: ------------------------ END Symbolic Interpretation---------------------------- [2019-08-05 18:15:33,307 INFO L168 Benchmark]: Toolchain (without parser) took 395.72 ms. Allocated memory is still 140.5 MB. Free memory was 108.9 MB in the beginning and 91.9 MB in the end (delta: 17.0 MB). Peak memory consumption was 17.0 MB. Max. memory is 7.1 GB. [2019-08-05 18:15:33,308 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.21 ms. Allocated memory is still 140.5 MB. Free memory was 110.1 MB in the beginning and 109.9 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2019-08-05 18:15:33,310 INFO L168 Benchmark]: Boogie Preprocessor took 34.68 ms. Allocated memory is still 140.5 MB. Free memory was 108.9 MB in the beginning and 106.8 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 7.1 GB. [2019-08-05 18:15:33,311 INFO L168 Benchmark]: RCFGBuilder took 244.82 ms. Allocated memory is still 140.5 MB. Free memory was 106.6 MB in the beginning and 97.0 MB in the end (delta: 9.5 MB). Peak memory consumption was 9.5 MB. Max. memory is 7.1 GB. [2019-08-05 18:15:33,312 INFO L168 Benchmark]: Symbolic Interpretation took 113.34 ms. Allocated memory is still 140.5 MB. Free memory was 96.8 MB in the beginning and 91.9 MB in the end (delta: 5.0 MB). Peak memory consumption was 5.0 MB. Max. memory is 7.1 GB. [2019-08-05 18:15:33,316 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.. 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 140.5 MB. Free memory was 110.1 MB in the beginning and 109.9 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * Boogie Preprocessor took 34.68 ms. Allocated memory is still 140.5 MB. Free memory was 108.9 MB in the beginning and 106.8 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 7.1 GB. * RCFGBuilder took 244.82 ms. Allocated memory is still 140.5 MB. Free memory was 106.6 MB in the beginning and 97.0 MB in the end (delta: 9.5 MB). Peak memory consumption was 9.5 MB. Max. memory is 7.1 GB. * Symbolic Interpretation took 113.34 ms. Allocated memory is still 140.5 MB. Free memory was 96.8 MB in the beginning and 91.9 MB in the end (delta: 5.0 MB). Peak memory consumption was 5.0 MB. Max. memory is 7.1 GB. RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request...