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 0.1.24-3b9210c [2019-08-06 16:58:12,204 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-08-06 16:58:12,206 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-08-06 16:58:12,218 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-08-06 16:58:12,219 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-08-06 16:58:12,220 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-08-06 16:58:12,222 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-08-06 16:58:12,224 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-08-06 16:58:12,226 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-08-06 16:58:12,226 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-08-06 16:58:12,227 INFO L181 SettingsManager]: Resetting Symbolic Interpretation preferences to default values [2019-08-06 16:58:12,229 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-08-06 16:58:12,229 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-08-06 16:58:12,230 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-08-06 16:58:12,231 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-08-06 16:58:12,233 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-08-06 16:58:12,233 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-08-06 16:58:12,235 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-08-06 16:58:12,237 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-08-06 16:58:12,239 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-08-06 16:58:12,241 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-08-06 16:58:12,242 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-08-06 16:58:12,243 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-08-06 16:58:12,244 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-08-06 16:58:12,247 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-08-06 16:58:12,247 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-08-06 16:58:12,248 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-08-06 16:58:12,250 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-08-06 16:58:12,251 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-08-06 16:58:12,253 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-08-06 16:58:12,253 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-08-06 16:58:12,254 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-08-06 16:58:12,256 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-08-06 16:58:12,257 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-08-06 16:58:12,258 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-08-06 16:58:12,259 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-08-06 16:58:12,260 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-08-06 16:58:12,260 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-08-06 16:58:12,261 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-08-06 16:58:12,262 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-08-06 16:58:12,264 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-08-06 16:58:12,309 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-08-06 16:58:12,327 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-08-06 16:58:12,331 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-08-06 16:58:12,333 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2019-08-06 16:58:12,334 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2019-08-06 16:58:12,335 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/regression/bpl/nestedWhileSimple-Safe.bpl [2019-08-06 16:58:12,336 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/regression/bpl/nestedWhileSimple-Safe.bpl' [2019-08-06 16:58:12,373 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-08-06 16:58:12,374 INFO L131 ToolchainWalker]: Walking toolchain with 3 elements. [2019-08-06 16:58:12,375 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-08-06 16:58:12,375 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-08-06 16:58:12,375 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-08-06 16:58:12,402 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "nestedWhileSimple-Safe.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 06.08 04:58:12" (1/1) ... [2019-08-06 16:58:12,404 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "nestedWhileSimple-Safe.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 06.08 04:58:12" (1/1) ... [2019-08-06 16:58:12,412 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "nestedWhileSimple-Safe.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 06.08 04:58:12" (1/1) ... [2019-08-06 16:58:12,412 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "nestedWhileSimple-Safe.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 06.08 04:58:12" (1/1) ... [2019-08-06 16:58:12,416 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "nestedWhileSimple-Safe.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 06.08 04:58:12" (1/1) ... [2019-08-06 16:58:12,423 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "nestedWhileSimple-Safe.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 06.08 04:58:12" (1/1) ... [2019-08-06 16:58:12,424 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "nestedWhileSimple-Safe.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 06.08 04:58:12" (1/1) ... [2019-08-06 16:58:12,426 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-08-06 16:58:12,427 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-08-06 16:58:12,427 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-08-06 16:58:12,427 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-08-06 16:58:12,428 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "nestedWhileSimple-Safe.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 06.08 04:58:12" (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 [2019-08-06 16:58:12,505 INFO L124 BoogieDeclarations]: Specification and implementation of procedure main given in one single declaration [2019-08-06 16:58:12,505 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-08-06 16:58:12,505 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-08-06 16:58:12,721 INFO L275 CfgBuilder]: Using library mode [2019-08-06 16:58:12,721 INFO L283 CfgBuilder]: Removed 5 assume(true) statements. [2019-08-06 16:58:12,722 INFO L202 PluginConnector]: Adding new model nestedWhileSimple-Safe.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.08 04:58:12 BoogieIcfgContainer [2019-08-06 16:58:12,723 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-08-06 16:58:12,723 INFO L113 PluginConnector]: ------------------------Symbolic Interpretation---------------------------- [2019-08-06 16:58:12,723 INFO L271 PluginConnector]: Initializing Symbolic Interpretation... [2019-08-06 16:58:12,724 INFO L275 PluginConnector]: Symbolic Interpretation initialized [2019-08-06 16:58:12,725 INFO L185 PluginConnector]: Executing the observer SymbolicInterpretationObserver from plugin Symbolic Interpretation for "nestedWhileSimple-Safe.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.08 04:58:12" (1/1) ... [2019-08-06 16:58:12,735 INFO L148 IcfgInterpreter]: Started Sifa with 1 locations of interest [2019-08-06 16:58:12,738 INFO L155 IcfgInterpreter]: Building call graph [2019-08-06 16:58:12,744 INFO L160 IcfgInterpreter]: Initial procedures are [main] [2019-08-06 16:58:12,752 INFO L165 IcfgInterpreter]: Starting interpretation [2019-08-06 16:58:12,754 INFO L185 IcfgInterpreter]: Interpreting procedure main with input of size 1 [2019-08-06 16:58:13,039 INFO L169 IcfgInterpreter]: Interpretation finished [2019-08-06 16:58:13,039 INFO L177 IcfgInterpreter]: Final predicates for locations of interest are: [2019-08-06 16:58:13,041 INFO L179 IcfgInterpreter]: Location mainErr0ASSERT_VIOLATIONASSERT has predicate 179#(= main_x (- 1)) [2019-08-06 16:58:13,042 WARN L88 terpretationObserver]: Some locations of interest might be reachable, see reported results. [2019-08-06 16:58:13,052 INFO L132 PluginConnector]: ------------------------ END Symbolic Interpretation---------------------------- [2019-08-06 16:58:13,055 INFO L168 Benchmark]: Toolchain (without parser) took 679.90 ms. Allocated memory is still 137.9 MB. Free memory was 106.3 MB in the beginning and 86.1 MB in the end (delta: 20.1 MB). Peak memory consumption was 20.1 MB. Max. memory is 7.1 GB. [2019-08-06 16:58:13,056 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.23 ms. Allocated memory is still 137.9 MB. Free memory was 107.5 MB in the beginning and 107.3 MB in the end (delta: 209.9 kB). Peak memory consumption was 209.9 kB. Max. memory is 7.1 GB. [2019-08-06 16:58:13,058 INFO L168 Benchmark]: Boogie Preprocessor took 51.11 ms. Allocated memory is still 137.9 MB. Free memory was 106.3 MB in the beginning and 104.1 MB in the end (delta: 2.2 MB). Peak memory consumption was 2.2 MB. Max. memory is 7.1 GB. [2019-08-06 16:58:13,059 INFO L168 Benchmark]: RCFGBuilder took 295.98 ms. Allocated memory is still 137.9 MB. Free memory was 104.1 MB in the beginning and 94.8 MB in the end (delta: 9.3 MB). Peak memory consumption was 9.3 MB. Max. memory is 7.1 GB. [2019-08-06 16:58:13,060 INFO L168 Benchmark]: Symbolic Interpretation took 329.32 ms. Allocated memory is still 137.9 MB. Free memory was 94.8 MB in the beginning and 86.1 MB in the end (delta: 8.7 MB). Peak memory consumption was 8.7 MB. Max. memory is 7.1 GB. [2019-08-06 16:58:13,064 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.. 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 137.9 MB. Free memory was 107.5 MB in the beginning and 107.3 MB in the end (delta: 209.9 kB). Peak memory consumption was 209.9 kB. Max. memory is 7.1 GB. * Boogie Preprocessor took 51.11 ms. Allocated memory is still 137.9 MB. Free memory was 106.3 MB in the beginning and 104.1 MB in the end (delta: 2.2 MB). Peak memory consumption was 2.2 MB. Max. memory is 7.1 GB. * RCFGBuilder took 295.98 ms. Allocated memory is still 137.9 MB. Free memory was 104.1 MB in the beginning and 94.8 MB in the end (delta: 9.3 MB). Peak memory consumption was 9.3 MB. Max. memory is 7.1 GB. * Symbolic Interpretation took 329.32 ms. Allocated memory is still 137.9 MB. Free memory was 94.8 MB in the beginning and 86.1 MB in the end (delta: 8.7 MB). Peak memory consumption was 8.7 MB. Max. memory is 7.1 GB. RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request...