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/nestedWhileSimple-Safe.bpl -------------------------------------------------------------------------------- This is Ultimate 0.1.24-4ddfff8 [2019-08-09 14:19:05,062 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-08-09 14:19:05,064 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-08-09 14:19:05,078 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-08-09 14:19:05,078 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-08-09 14:19:05,079 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-08-09 14:19:05,081 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-08-09 14:19:05,083 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-08-09 14:19:05,084 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-08-09 14:19:05,085 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-08-09 14:19:05,086 INFO L181 SettingsManager]: Resetting Symbolic Interpretation preferences to default values [2019-08-09 14:19:05,087 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-08-09 14:19:05,088 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-08-09 14:19:05,088 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-08-09 14:19:05,089 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-08-09 14:19:05,091 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-08-09 14:19:05,092 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-08-09 14:19:05,093 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-08-09 14:19:05,095 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-08-09 14:19:05,097 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-08-09 14:19:05,099 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-08-09 14:19:05,100 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-08-09 14:19:05,101 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-08-09 14:19:05,102 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-08-09 14:19:05,105 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-08-09 14:19:05,105 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-08-09 14:19:05,106 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-08-09 14:19:05,107 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-08-09 14:19:05,107 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-08-09 14:19:05,109 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-08-09 14:19:05,109 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-08-09 14:19:05,110 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-08-09 14:19:05,111 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-08-09 14:19:05,112 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-08-09 14:19:05,113 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-08-09 14:19:05,113 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-08-09 14:19:05,114 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-08-09 14:19:05,114 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-08-09 14:19:05,114 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-08-09 14:19:05,115 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-08-09 14:19:05,116 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-08-09 14:19:05,143 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-08-09 14:19:05,156 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-08-09 14:19:05,159 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-08-09 14:19:05,161 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2019-08-09 14:19:05,162 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2019-08-09 14:19:05,163 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/regression/bpl/nestedWhileSimple-Safe.bpl [2019-08-09 14:19:05,163 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/regression/bpl/nestedWhileSimple-Safe.bpl' [2019-08-09 14:19:05,199 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-08-09 14:19:05,201 INFO L131 ToolchainWalker]: Walking toolchain with 3 elements. [2019-08-09 14:19:05,202 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-08-09 14:19:05,202 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-08-09 14:19:05,202 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-08-09 14:19:05,232 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "nestedWhileSimple-Safe.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 09.08 02:19:05" (1/1) ... [2019-08-09 14:19:05,234 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "nestedWhileSimple-Safe.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 09.08 02:19:05" (1/1) ... [2019-08-09 14:19:05,243 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "nestedWhileSimple-Safe.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 09.08 02:19:05" (1/1) ... [2019-08-09 14:19:05,243 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "nestedWhileSimple-Safe.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 09.08 02:19:05" (1/1) ... [2019-08-09 14:19:05,246 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "nestedWhileSimple-Safe.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 09.08 02:19:05" (1/1) ... [2019-08-09 14:19:05,252 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "nestedWhileSimple-Safe.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 09.08 02:19:05" (1/1) ... [2019-08-09 14:19:05,253 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "nestedWhileSimple-Safe.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 09.08 02:19:05" (1/1) ... [2019-08-09 14:19:05,255 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-08-09 14:19:05,256 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-08-09 14:19:05,257 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-08-09 14:19:05,257 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-08-09 14:19:05,258 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "nestedWhileSimple-Safe.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 09.08 02:19:05" (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 14:19:05,331 INFO L124 BoogieDeclarations]: Specification and implementation of procedure main given in one single declaration [2019-08-09 14:19:05,331 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-08-09 14:19:05,331 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-08-09 14:19:05,484 INFO L275 CfgBuilder]: Using library mode [2019-08-09 14:19:05,484 INFO L283 CfgBuilder]: Removed 5 assume(true) statements. [2019-08-09 14:19:05,486 INFO L202 PluginConnector]: Adding new model nestedWhileSimple-Safe.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.08 02:19:05 BoogieIcfgContainer [2019-08-09 14:19:05,486 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-08-09 14:19:05,487 INFO L113 PluginConnector]: ------------------------Symbolic Interpretation---------------------------- [2019-08-09 14:19:05,487 INFO L271 PluginConnector]: Initializing Symbolic Interpretation... [2019-08-09 14:19:05,487 INFO L275 PluginConnector]: Symbolic Interpretation initialized [2019-08-09 14:19:05,488 INFO L185 PluginConnector]: Executing the observer SymbolicInterpretationObserver from plugin Symbolic Interpretation for "nestedWhileSimple-Safe.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.08 02:19:05" (1/1) ... [2019-08-09 14:19:05,736 WARN L88 terpretationObserver]: Some locations of interest might be reachable, see reported results. [2019-08-09 14:19:05,744 INFO L132 PluginConnector]: ------------------------ END Symbolic Interpretation---------------------------- [2019-08-09 14:19:05,747 INFO L168 Benchmark]: Toolchain (without parser) took 544.56 ms. Allocated memory is still 131.1 MB. Free memory was 107.5 MB in the beginning and 87.7 MB in the end (delta: 19.7 MB). Peak memory consumption was 19.7 MB. Max. memory is 7.1 GB. [2019-08-09 14:19:05,749 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.23 ms. Allocated memory is still 131.1 MB. Free memory was 108.7 MB in the beginning and 108.5 MB in the end (delta: 209.9 kB). Peak memory consumption was 209.9 kB. Max. memory is 7.1 GB. [2019-08-09 14:19:05,750 INFO L168 Benchmark]: Boogie Preprocessor took 53.64 ms. Allocated memory is still 131.1 MB. Free memory was 107.5 MB in the beginning and 105.3 MB in the end (delta: 2.2 MB). Peak memory consumption was 2.2 MB. Max. memory is 7.1 GB. [2019-08-09 14:19:05,752 INFO L168 Benchmark]: RCFGBuilder took 229.85 ms. Allocated memory is still 131.1 MB. Free memory was 105.3 MB in the beginning and 96.0 MB in the end (delta: 9.3 MB). Peak memory consumption was 9.3 MB. Max. memory is 7.1 GB. [2019-08-09 14:19:05,753 INFO L168 Benchmark]: Symbolic Interpretation took 257.34 ms. Allocated memory is still 131.1 MB. Free memory was 96.0 MB in the beginning and 87.7 MB in the end (delta: 8.3 MB). Peak memory consumption was 8.3 MB. Max. memory is 7.1 GB. [2019-08-09 14:19:05,759 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.symbolicinterpretation: - UnprovableResult [Line: 25]: 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 179#(= main_x (- 1)). Possible FailurePath: * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * Boogie PL CUP Parser took 0.23 ms. Allocated memory is still 131.1 MB. Free memory was 108.7 MB in the beginning and 108.5 MB in the end (delta: 209.9 kB). Peak memory consumption was 209.9 kB. Max. memory is 7.1 GB. * Boogie Preprocessor took 53.64 ms. Allocated memory is still 131.1 MB. Free memory was 107.5 MB in the beginning and 105.3 MB in the end (delta: 2.2 MB). Peak memory consumption was 2.2 MB. Max. memory is 7.1 GB. * RCFGBuilder took 229.85 ms. Allocated memory is still 131.1 MB. Free memory was 105.3 MB in the beginning and 96.0 MB in the end (delta: 9.3 MB). Peak memory consumption was 9.3 MB. Max. memory is 7.1 GB. * Symbolic Interpretation took 257.34 ms. Allocated memory is still 131.1 MB. Free memory was 96.0 MB in the beginning and 87.7 MB in the end (delta: 8.3 MB). Peak memory consumption was 8.3 MB. Max. memory is 7.1 GB. RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request...