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 0.1.24-3b9210c [2019-08-06 16:58:19,350 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-08-06 16:58:19,352 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-08-06 16:58:19,364 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-08-06 16:58:19,364 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-08-06 16:58:19,366 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-08-06 16:58:19,367 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-08-06 16:58:19,369 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-08-06 16:58:19,371 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-08-06 16:58:19,372 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-08-06 16:58:19,373 INFO L181 SettingsManager]: Resetting Symbolic Interpretation preferences to default values [2019-08-06 16:58:19,374 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-08-06 16:58:19,374 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-08-06 16:58:19,376 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-08-06 16:58:19,377 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-08-06 16:58:19,378 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-08-06 16:58:19,379 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-08-06 16:58:19,380 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-08-06 16:58:19,382 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-08-06 16:58:19,384 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-08-06 16:58:19,386 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-08-06 16:58:19,388 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-08-06 16:58:19,389 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-08-06 16:58:19,390 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-08-06 16:58:19,393 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-08-06 16:58:19,393 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-08-06 16:58:19,393 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-08-06 16:58:19,394 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-08-06 16:58:19,395 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-08-06 16:58:19,396 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-08-06 16:58:19,396 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-08-06 16:58:19,397 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-08-06 16:58:19,398 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-08-06 16:58:19,399 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-08-06 16:58:19,400 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-08-06 16:58:19,401 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-08-06 16:58:19,402 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-08-06 16:58:19,402 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-08-06 16:58:19,402 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-08-06 16:58:19,403 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-08-06 16:58:19,404 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-08-06 16:58:19,462 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-08-06 16:58:19,477 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-08-06 16:58:19,480 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-08-06 16:58:19,483 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2019-08-06 16:58:19,484 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2019-08-06 16:58:19,485 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/regression/bpl/interprocedural/BugNoPredecessorOfReturnTransition.bpl [2019-08-06 16:58:19,486 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/regression/bpl/interprocedural/BugNoPredecessorOfReturnTransition.bpl' [2019-08-06 16:58:19,520 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-08-06 16:58:19,523 INFO L131 ToolchainWalker]: Walking toolchain with 3 elements. [2019-08-06 16:58:19,523 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-08-06 16:58:19,524 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-08-06 16:58:19,524 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-08-06 16:58:19,552 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "BugNoPredecessorOfReturnTransition.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 06.08 04:58:19" (1/1) ... [2019-08-06 16:58:19,555 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "BugNoPredecessorOfReturnTransition.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 06.08 04:58:19" (1/1) ... [2019-08-06 16:58:19,562 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "BugNoPredecessorOfReturnTransition.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 06.08 04:58:19" (1/1) ... [2019-08-06 16:58:19,563 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "BugNoPredecessorOfReturnTransition.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 06.08 04:58:19" (1/1) ... [2019-08-06 16:58:19,566 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "BugNoPredecessorOfReturnTransition.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 06.08 04:58:19" (1/1) ... [2019-08-06 16:58:19,568 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "BugNoPredecessorOfReturnTransition.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 06.08 04:58:19" (1/1) ... [2019-08-06 16:58:19,569 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "BugNoPredecessorOfReturnTransition.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 06.08 04:58:19" (1/1) ... [2019-08-06 16:58:19,570 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-08-06 16:58:19,571 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-08-06 16:58:19,572 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-08-06 16:58:19,572 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-08-06 16:58:19,576 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "BugNoPredecessorOfReturnTransition.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 06.08 04:58:19" (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 16:58:19,647 INFO L124 BoogieDeclarations]: Specification and implementation of procedure loop given in one single declaration [2019-08-06 16:58:19,648 INFO L130 BoogieDeclarations]: Found specification of procedure loop [2019-08-06 16:58:19,648 INFO L138 BoogieDeclarations]: Found implementation of procedure loop [2019-08-06 16:58:19,800 INFO L684 $ProcedureCfgBuilder]: dead code at ProgramPoint loopFINAL: assume true; [2019-08-06 16:58:19,803 INFO L275 CfgBuilder]: Using library mode [2019-08-06 16:58:19,803 INFO L283 CfgBuilder]: Removed 0 assume(true) statements. [2019-08-06 16:58:19,805 INFO L202 PluginConnector]: Adding new model BugNoPredecessorOfReturnTransition.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.08 04:58:19 BoogieIcfgContainer [2019-08-06 16:58:19,806 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-08-06 16:58:19,806 INFO L113 PluginConnector]: ------------------------Symbolic Interpretation---------------------------- [2019-08-06 16:58:19,807 INFO L271 PluginConnector]: Initializing Symbolic Interpretation... [2019-08-06 16:58:19,807 INFO L275 PluginConnector]: Symbolic Interpretation initialized [2019-08-06 16:58:19,810 INFO L185 PluginConnector]: Executing the observer SymbolicInterpretationObserver from plugin Symbolic Interpretation for "BugNoPredecessorOfReturnTransition.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.08 04:58:19" (1/1) ... [2019-08-06 16:58:19,822 INFO L148 IcfgInterpreter]: Started Sifa with 1 locations of interest [2019-08-06 16:58:19,826 INFO L155 IcfgInterpreter]: Building call graph [2019-08-06 16:58:19,834 INFO L160 IcfgInterpreter]: Initial procedures are [loop] [2019-08-06 16:58:19,843 INFO L165 IcfgInterpreter]: Starting interpretation [2019-08-06 16:58:19,845 INFO L185 IcfgInterpreter]: Interpreting procedure loop with input of size 1 [2019-08-06 16:58:19,937 INFO L169 IcfgInterpreter]: Interpretation finished [2019-08-06 16:58:19,937 INFO L177 IcfgInterpreter]: Final predicates for locations of interest are: [2019-08-06 16:58:19,940 INFO L179 IcfgInterpreter]: Location loopErr0ASSERT_VIOLATIONASSERT has predicate 26#(and (not (= loop_x 0)) (= loop_x (- 1))) [2019-08-06 16:58:19,941 WARN L88 terpretationObserver]: Some locations of interest might be reachable, see reported results. [2019-08-06 16:58:19,948 INFO L132 PluginConnector]: ------------------------ END Symbolic Interpretation---------------------------- [2019-08-06 16:58:19,951 INFO L168 Benchmark]: Toolchain (without parser) took 427.81 ms. Allocated memory is still 130.5 MB. Free memory was 104.3 MB in the beginning and 88.6 MB in the end (delta: 15.7 MB). Peak memory consumption was 15.7 MB. Max. memory is 7.1 GB. [2019-08-06 16:58:19,952 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.23 ms. Allocated memory is still 130.5 MB. Free memory was 105.3 MB in the beginning and 105.1 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. [2019-08-06 16:58:19,954 INFO L168 Benchmark]: Boogie Preprocessor took 47.32 ms. Allocated memory is still 130.5 MB. Free memory was 104.1 MB in the beginning and 102.1 MB in the end (delta: 1.9 MB). Peak memory consumption was 1.9 MB. Max. memory is 7.1 GB. [2019-08-06 16:58:19,955 INFO L168 Benchmark]: RCFGBuilder took 234.61 ms. Allocated memory is still 130.5 MB. Free memory was 101.9 MB in the beginning and 93.7 MB in the end (delta: 8.2 MB). Peak memory consumption was 8.2 MB. Max. memory is 7.1 GB. [2019-08-06 16:58:19,956 INFO L168 Benchmark]: Symbolic Interpretation took 141.63 ms. Allocated memory is still 130.5 MB. Free memory was 93.7 MB in the beginning and 88.6 MB in the end (delta: 5.1 MB). Peak memory consumption was 5.1 MB. Max. memory is 7.1 GB. [2019-08-06 16:58:19,962 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.. 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 130.5 MB. Free memory was 105.3 MB in the beginning and 105.1 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. * Boogie Preprocessor took 47.32 ms. Allocated memory is still 130.5 MB. Free memory was 104.1 MB in the beginning and 102.1 MB in the end (delta: 1.9 MB). Peak memory consumption was 1.9 MB. Max. memory is 7.1 GB. * RCFGBuilder took 234.61 ms. Allocated memory is still 130.5 MB. Free memory was 101.9 MB in the beginning and 93.7 MB in the end (delta: 8.2 MB). Peak memory consumption was 8.2 MB. Max. memory is 7.1 GB. * Symbolic Interpretation took 141.63 ms. Allocated memory is still 130.5 MB. Free memory was 93.7 MB in the beginning and 88.6 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...