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/BugBackwardPredicates06.bpl -------------------------------------------------------------------------------- This is Ultimate 0.1.24-4ddfff8 [2019-08-09 14:19:18,727 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-08-09 14:19:18,729 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-08-09 14:19:18,740 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-08-09 14:19:18,741 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-08-09 14:19:18,742 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-08-09 14:19:18,743 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-08-09 14:19:18,745 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-08-09 14:19:18,747 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-08-09 14:19:18,748 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-08-09 14:19:18,749 INFO L181 SettingsManager]: Resetting Symbolic Interpretation preferences to default values [2019-08-09 14:19:18,750 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-08-09 14:19:18,750 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-08-09 14:19:18,751 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-08-09 14:19:18,752 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-08-09 14:19:18,753 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-08-09 14:19:18,754 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-08-09 14:19:18,755 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-08-09 14:19:18,757 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-08-09 14:19:18,759 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-08-09 14:19:18,761 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-08-09 14:19:18,762 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-08-09 14:19:18,763 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-08-09 14:19:18,764 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-08-09 14:19:18,766 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-08-09 14:19:18,766 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-08-09 14:19:18,767 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-08-09 14:19:18,768 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-08-09 14:19:18,768 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-08-09 14:19:18,769 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-08-09 14:19:18,770 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-08-09 14:19:18,770 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-08-09 14:19:18,771 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-08-09 14:19:18,772 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-08-09 14:19:18,773 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-08-09 14:19:18,773 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-08-09 14:19:18,774 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-08-09 14:19:18,774 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-08-09 14:19:18,774 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-08-09 14:19:18,775 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-08-09 14:19:18,776 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-08-09 14:19:18,809 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-08-09 14:19:18,824 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-08-09 14:19:18,830 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-08-09 14:19:18,835 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2019-08-09 14:19:18,838 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2019-08-09 14:19:18,839 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/regression/bpl/interprocedural/BugBackwardPredicates06.bpl [2019-08-09 14:19:18,840 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/regression/bpl/interprocedural/BugBackwardPredicates06.bpl' [2019-08-09 14:19:18,872 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-08-09 14:19:18,873 INFO L131 ToolchainWalker]: Walking toolchain with 3 elements. [2019-08-09 14:19:18,874 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-08-09 14:19:18,874 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-08-09 14:19:18,874 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-08-09 14:19:18,901 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "BugBackwardPredicates06.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 09.08 02:19:18" (1/1) ... [2019-08-09 14:19:18,903 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "BugBackwardPredicates06.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 09.08 02:19:18" (1/1) ... [2019-08-09 14:19:18,910 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "BugBackwardPredicates06.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 09.08 02:19:18" (1/1) ... [2019-08-09 14:19:18,911 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "BugBackwardPredicates06.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 09.08 02:19:18" (1/1) ... [2019-08-09 14:19:18,914 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "BugBackwardPredicates06.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 09.08 02:19:18" (1/1) ... [2019-08-09 14:19:18,916 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "BugBackwardPredicates06.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 09.08 02:19:18" (1/1) ... [2019-08-09 14:19:18,917 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "BugBackwardPredicates06.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 09.08 02:19:18" (1/1) ... [2019-08-09 14:19:18,918 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-08-09 14:19:18,919 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-08-09 14:19:18,920 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-08-09 14:19:18,920 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-08-09 14:19:18,921 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "BugBackwardPredicates06.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 09.08 02:19:18" (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 14:19:18,986 INFO L124 BoogieDeclarations]: Specification and implementation of procedure main given in one single declaration [2019-08-09 14:19:18,986 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-08-09 14:19:18,986 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-08-09 14:19:18,987 INFO L124 BoogieDeclarations]: Specification and implementation of procedure alwaysTrue given in one single declaration [2019-08-09 14:19:18,987 INFO L130 BoogieDeclarations]: Found specification of procedure alwaysTrue [2019-08-09 14:19:18,987 INFO L138 BoogieDeclarations]: Found implementation of procedure alwaysTrue [2019-08-09 14:19:18,987 INFO L124 BoogieDeclarations]: Specification and implementation of procedure isZero given in one single declaration [2019-08-09 14:19:18,988 INFO L130 BoogieDeclarations]: Found specification of procedure isZero [2019-08-09 14:19:18,988 INFO L138 BoogieDeclarations]: Found implementation of procedure isZero [2019-08-09 14:19:18,988 INFO L124 BoogieDeclarations]: Specification and implementation of procedure notZero given in one single declaration [2019-08-09 14:19:18,988 INFO L130 BoogieDeclarations]: Found specification of procedure notZero [2019-08-09 14:19:18,989 INFO L138 BoogieDeclarations]: Found implementation of procedure notZero [2019-08-09 14:19:19,212 INFO L275 CfgBuilder]: Using library mode [2019-08-09 14:19:19,212 INFO L283 CfgBuilder]: Removed 0 assume(true) statements. [2019-08-09 14:19:19,214 INFO L202 PluginConnector]: Adding new model BugBackwardPredicates06.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.08 02:19:19 BoogieIcfgContainer [2019-08-09 14:19:19,214 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-08-09 14:19:19,215 INFO L113 PluginConnector]: ------------------------Symbolic Interpretation---------------------------- [2019-08-09 14:19:19,215 INFO L271 PluginConnector]: Initializing Symbolic Interpretation... [2019-08-09 14:19:19,215 INFO L275 PluginConnector]: Symbolic Interpretation initialized [2019-08-09 14:19:19,216 INFO L185 PluginConnector]: Executing the observer SymbolicInterpretationObserver from plugin Symbolic Interpretation for "BugBackwardPredicates06.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.08 02:19:19" (1/1) ... [2019-08-09 14:19:19,358 WARN L88 terpretationObserver]: Some locations of interest might be reachable, see reported results. [2019-08-09 14:19:19,366 INFO L132 PluginConnector]: ------------------------ END Symbolic Interpretation---------------------------- [2019-08-09 14:19:19,375 INFO L168 Benchmark]: Toolchain (without parser) took 496.07 ms. Allocated memory is still 139.5 MB. Free memory was 107.8 MB in the beginning and 89.1 MB in the end (delta: 18.7 MB). Peak memory consumption was 18.7 MB. Max. memory is 7.1 GB. [2019-08-09 14:19:19,376 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.22 ms. Allocated memory is still 139.5 MB. Free memory was 109.1 MB in the beginning and 108.8 MB in the end (delta: 209.9 kB). Peak memory consumption was 209.9 kB. Max. memory is 7.1 GB. [2019-08-09 14:19:19,378 INFO L168 Benchmark]: Boogie Preprocessor took 44.86 ms. Allocated memory is still 139.5 MB. Free memory was 107.8 MB in the beginning and 105.6 MB in the end (delta: 2.2 MB). Peak memory consumption was 2.2 MB. Max. memory is 7.1 GB. [2019-08-09 14:19:19,380 INFO L168 Benchmark]: RCFGBuilder took 294.74 ms. Allocated memory is still 139.5 MB. Free memory was 105.6 MB in the beginning and 94.1 MB in the end (delta: 11.6 MB). Peak memory consumption was 11.6 MB. Max. memory is 7.1 GB. [2019-08-09 14:19:19,383 INFO L168 Benchmark]: Symbolic Interpretation took 151.39 ms. Allocated memory is still 139.5 MB. Free memory was 94.1 MB in the beginning and 89.1 MB in the end (delta: 4.9 MB). Peak memory consumption was 4.9 MB. Max. memory is 7.1 GB. [2019-08-09 14:19:19,389 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 18#(and (or (and (not (= main_y 0)) main_verum) (= main_y 0)) (not main_verum) (not (= main_y 0)) (or (<= 1 main_y) (= main_y 0))). 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 139.5 MB. Free memory was 109.1 MB in the beginning and 108.8 MB in the end (delta: 209.9 kB). Peak memory consumption was 209.9 kB. Max. memory is 7.1 GB. * Boogie Preprocessor took 44.86 ms. Allocated memory is still 139.5 MB. Free memory was 107.8 MB in the beginning and 105.6 MB in the end (delta: 2.2 MB). Peak memory consumption was 2.2 MB. Max. memory is 7.1 GB. * RCFGBuilder took 294.74 ms. Allocated memory is still 139.5 MB. Free memory was 105.6 MB in the beginning and 94.1 MB in the end (delta: 11.6 MB). Peak memory consumption was 11.6 MB. Max. memory is 7.1 GB. * Symbolic Interpretation took 151.39 ms. Allocated memory is still 139.5 MB. Free memory was 94.1 MB in the beginning and 89.1 MB in the end (delta: 4.9 MB). Peak memory consumption was 4.9 MB. Max. memory is 7.1 GB. RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request...