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/BugNoPredecessorOfReturnTransition.bpl -------------------------------------------------------------------------------- This is Ultimate 0.1.24-4ddfff8 [2019-08-09 14:19:12,830 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-08-09 14:19:12,832 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-08-09 14:19:12,843 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-08-09 14:19:12,844 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-08-09 14:19:12,845 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-08-09 14:19:12,846 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-08-09 14:19:12,848 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-08-09 14:19:12,849 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-08-09 14:19:12,850 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-08-09 14:19:12,851 INFO L181 SettingsManager]: Resetting Symbolic Interpretation preferences to default values [2019-08-09 14:19:12,852 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-08-09 14:19:12,853 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-08-09 14:19:12,854 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-08-09 14:19:12,855 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-08-09 14:19:12,856 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-08-09 14:19:12,857 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-08-09 14:19:12,858 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-08-09 14:19:12,860 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-08-09 14:19:12,862 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-08-09 14:19:12,864 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-08-09 14:19:12,865 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-08-09 14:19:12,866 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-08-09 14:19:12,867 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-08-09 14:19:12,872 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-08-09 14:19:12,872 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-08-09 14:19:12,873 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-08-09 14:19:12,874 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-08-09 14:19:12,874 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-08-09 14:19:12,875 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-08-09 14:19:12,875 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-08-09 14:19:12,876 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-08-09 14:19:12,877 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-08-09 14:19:12,878 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-08-09 14:19:12,879 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-08-09 14:19:12,879 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-08-09 14:19:12,880 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-08-09 14:19:12,880 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-08-09 14:19:12,880 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-08-09 14:19:12,881 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-08-09 14:19:12,882 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-08-09 14:19:12,908 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-08-09 14:19:12,924 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-08-09 14:19:12,928 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-08-09 14:19:12,930 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2019-08-09 14:19:12,930 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2019-08-09 14:19:12,931 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/regression/bpl/interprocedural/BugNoPredecessorOfReturnTransition.bpl [2019-08-09 14:19:12,932 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/regression/bpl/interprocedural/BugNoPredecessorOfReturnTransition.bpl' [2019-08-09 14:19:12,956 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-08-09 14:19:12,958 INFO L131 ToolchainWalker]: Walking toolchain with 3 elements. [2019-08-09 14:19:12,958 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-08-09 14:19:12,959 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-08-09 14:19:12,959 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-08-09 14:19:12,983 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "BugNoPredecessorOfReturnTransition.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 09.08 02:19:12" (1/1) ... [2019-08-09 14:19:12,985 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "BugNoPredecessorOfReturnTransition.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 09.08 02:19:12" (1/1) ... [2019-08-09 14:19:12,992 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "BugNoPredecessorOfReturnTransition.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 09.08 02:19:12" (1/1) ... [2019-08-09 14:19:12,992 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "BugNoPredecessorOfReturnTransition.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 09.08 02:19:12" (1/1) ... [2019-08-09 14:19:12,995 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "BugNoPredecessorOfReturnTransition.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 09.08 02:19:12" (1/1) ... [2019-08-09 14:19:12,996 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "BugNoPredecessorOfReturnTransition.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 09.08 02:19:12" (1/1) ... [2019-08-09 14:19:12,997 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "BugNoPredecessorOfReturnTransition.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 09.08 02:19:12" (1/1) ... [2019-08-09 14:19:12,998 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-08-09 14:19:12,999 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-08-09 14:19:13,000 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-08-09 14:19:13,000 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-08-09 14:19:13,001 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "BugNoPredecessorOfReturnTransition.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 09.08 02:19:12" (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 14:19:13,066 INFO L124 BoogieDeclarations]: Specification and implementation of procedure loop given in one single declaration [2019-08-09 14:19:13,067 INFO L130 BoogieDeclarations]: Found specification of procedure loop [2019-08-09 14:19:13,067 INFO L138 BoogieDeclarations]: Found implementation of procedure loop [2019-08-09 14:19:13,196 INFO L684 $ProcedureCfgBuilder]: dead code at ProgramPoint loopFINAL: assume true; [2019-08-09 14:19:13,199 INFO L275 CfgBuilder]: Using library mode [2019-08-09 14:19:13,199 INFO L283 CfgBuilder]: Removed 0 assume(true) statements. [2019-08-09 14:19:13,201 INFO L202 PluginConnector]: Adding new model BugNoPredecessorOfReturnTransition.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.08 02:19:13 BoogieIcfgContainer [2019-08-09 14:19:13,201 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-08-09 14:19:13,203 INFO L113 PluginConnector]: ------------------------Symbolic Interpretation---------------------------- [2019-08-09 14:19:13,206 INFO L271 PluginConnector]: Initializing Symbolic Interpretation... [2019-08-09 14:19:13,206 INFO L275 PluginConnector]: Symbolic Interpretation initialized [2019-08-09 14:19:13,208 INFO L185 PluginConnector]: Executing the observer SymbolicInterpretationObserver from plugin Symbolic Interpretation for "BugNoPredecessorOfReturnTransition.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.08 02:19:13" (1/1) ... [2019-08-09 14:19:13,385 WARN L88 terpretationObserver]: Some locations of interest might be reachable, see reported results. [2019-08-09 14:19:13,395 INFO L132 PluginConnector]: ------------------------ END Symbolic Interpretation---------------------------- [2019-08-09 14:19:13,400 INFO L168 Benchmark]: Toolchain (without parser) took 439.23 ms. Allocated memory is still 136.8 MB. Free memory was 109.0 MB in the beginning and 93.5 MB in the end (delta: 15.5 MB). Peak memory consumption was 15.5 MB. Max. memory is 7.1 GB. [2019-08-09 14:19:13,403 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.22 ms. Allocated memory is still 136.8 MB. Free memory was 110.2 MB in the beginning and 110.0 MB in the end (delta: 209.8 kB). Peak memory consumption was 209.8 kB. Max. memory is 7.1 GB. [2019-08-09 14:19:13,404 INFO L168 Benchmark]: Boogie Preprocessor took 40.32 ms. Allocated memory is still 136.8 MB. Free memory was 109.0 MB in the beginning and 107.0 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. [2019-08-09 14:19:13,405 INFO L168 Benchmark]: RCFGBuilder took 202.10 ms. Allocated memory is still 136.8 MB. Free memory was 106.8 MB in the beginning and 98.6 MB in the end (delta: 8.2 MB). Peak memory consumption was 8.2 MB. Max. memory is 7.1 GB. [2019-08-09 14:19:13,408 INFO L168 Benchmark]: Symbolic Interpretation took 192.96 ms. Allocated memory is still 136.8 MB. Free memory was 98.6 MB in the beginning and 93.5 MB in the end (delta: 5.1 MB). Peak memory consumption was 5.1 MB. Max. memory is 7.1 GB. [2019-08-09 14:19:13,414 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.symbolicinterpretation: - UnprovableResult [Line: 21]: 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 26#(= loop_x (- 1)). 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 136.8 MB. Free memory was 110.2 MB in the beginning and 110.0 MB in the end (delta: 209.8 kB). Peak memory consumption was 209.8 kB. Max. memory is 7.1 GB. * Boogie Preprocessor took 40.32 ms. Allocated memory is still 136.8 MB. Free memory was 109.0 MB in the beginning and 107.0 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. * RCFGBuilder took 202.10 ms. Allocated memory is still 136.8 MB. Free memory was 106.8 MB in the beginning and 98.6 MB in the end (delta: 8.2 MB). Peak memory consumption was 8.2 MB. Max. memory is 7.1 GB. * Symbolic Interpretation took 192.96 ms. Allocated memory is still 136.8 MB. Free memory was 98.6 MB in the beginning and 93.5 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...