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-b03553c [2019-08-05 18:15:35,707 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-08-05 18:15:35,709 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-08-05 18:15:35,721 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-08-05 18:15:35,722 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-08-05 18:15:35,723 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-08-05 18:15:35,725 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-08-05 18:15:35,727 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-08-05 18:15:35,729 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-08-05 18:15:35,731 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-08-05 18:15:35,732 INFO L181 SettingsManager]: Resetting Symbolic Interpretation preferences to default values [2019-08-05 18:15:35,733 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-08-05 18:15:35,733 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-08-05 18:15:35,735 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-08-05 18:15:35,736 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-08-05 18:15:35,738 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-08-05 18:15:35,739 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-08-05 18:15:35,740 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-08-05 18:15:35,742 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-08-05 18:15:35,746 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-08-05 18:15:35,749 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-08-05 18:15:35,750 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-08-05 18:15:35,752 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-08-05 18:15:35,753 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-08-05 18:15:35,756 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-08-05 18:15:35,760 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-08-05 18:15:35,761 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-08-05 18:15:35,762 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-08-05 18:15:35,763 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-08-05 18:15:35,765 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-08-05 18:15:35,765 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-08-05 18:15:35,766 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-08-05 18:15:35,766 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-08-05 18:15:35,767 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-08-05 18:15:35,768 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-08-05 18:15:35,769 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-08-05 18:15:35,828 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-08-05 18:15:35,847 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-08-05 18:15:35,853 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-08-05 18:15:35,855 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2019-08-05 18:15:35,857 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2019-08-05 18:15:35,857 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/regression/bpl/interprocedural/BugBackwardPredicates06.bpl [2019-08-05 18:15:35,858 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/regression/bpl/interprocedural/BugBackwardPredicates06.bpl' [2019-08-05 18:15:35,896 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-08-05 18:15:35,898 INFO L131 ToolchainWalker]: Walking toolchain with 3 elements. [2019-08-05 18:15:35,899 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-08-05 18:15:35,900 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-08-05 18:15:35,900 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-08-05 18:15:35,927 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "BugBackwardPredicates06.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 06:15:35" (1/1) ... [2019-08-05 18:15:35,930 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "BugBackwardPredicates06.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 06:15:35" (1/1) ... [2019-08-05 18:15:35,938 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "BugBackwardPredicates06.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 06:15:35" (1/1) ... [2019-08-05 18:15:35,938 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "BugBackwardPredicates06.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 06:15:35" (1/1) ... [2019-08-05 18:15:35,943 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "BugBackwardPredicates06.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 06:15:35" (1/1) ... [2019-08-05 18:15:35,946 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "BugBackwardPredicates06.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 06:15:35" (1/1) ... [2019-08-05 18:15:35,947 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "BugBackwardPredicates06.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 06:15:35" (1/1) ... [2019-08-05 18:15:35,949 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-08-05 18:15:35,950 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-08-05 18:15:35,950 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-08-05 18:15:35,951 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-08-05 18:15:35,952 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "BugBackwardPredicates06.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 06:15:35" (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 [2019-08-05 18:15:36,031 INFO L124 BoogieDeclarations]: Specification and implementation of procedure main given in one single declaration [2019-08-05 18:15:36,032 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-08-05 18:15:36,032 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-08-05 18:15:36,033 INFO L124 BoogieDeclarations]: Specification and implementation of procedure alwaysTrue given in one single declaration [2019-08-05 18:15:36,033 INFO L130 BoogieDeclarations]: Found specification of procedure alwaysTrue [2019-08-05 18:15:36,034 INFO L138 BoogieDeclarations]: Found implementation of procedure alwaysTrue [2019-08-05 18:15:36,034 INFO L124 BoogieDeclarations]: Specification and implementation of procedure isZero given in one single declaration [2019-08-05 18:15:36,034 INFO L130 BoogieDeclarations]: Found specification of procedure isZero [2019-08-05 18:15:36,034 INFO L138 BoogieDeclarations]: Found implementation of procedure isZero [2019-08-05 18:15:36,035 INFO L124 BoogieDeclarations]: Specification and implementation of procedure notZero given in one single declaration [2019-08-05 18:15:36,035 INFO L130 BoogieDeclarations]: Found specification of procedure notZero [2019-08-05 18:15:36,035 INFO L138 BoogieDeclarations]: Found implementation of procedure notZero [2019-08-05 18:15:36,361 INFO L275 CfgBuilder]: Using library mode [2019-08-05 18:15:36,362 INFO L283 CfgBuilder]: Removed 0 assume(true) statements. [2019-08-05 18:15:36,364 INFO L202 PluginConnector]: Adding new model BugBackwardPredicates06.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.08 06:15:36 BoogieIcfgContainer [2019-08-05 18:15:36,364 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-08-05 18:15:36,365 INFO L113 PluginConnector]: ------------------------Symbolic Interpretation---------------------------- [2019-08-05 18:15:36,365 INFO L271 PluginConnector]: Initializing Symbolic Interpretation... [2019-08-05 18:15:36,365 INFO L275 PluginConnector]: Symbolic Interpretation initialized [2019-08-05 18:15:36,366 INFO L185 PluginConnector]: Executing the observer SymbolicInterpretationObserver from plugin Symbolic Interpretation for "BugBackwardPredicates06.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.08 06:15:36" (1/1) ... [2019-08-05 18:15:36,381 INFO L148 IcfgInterpreter]: Started Sifa with 1 locations of interest [2019-08-05 18:15:36,387 INFO L155 IcfgInterpreter]: Building call graph [2019-08-05 18:15:36,400 INFO L160 IcfgInterpreter]: Initial procedures are [main] [2019-08-05 18:15:36,424 INFO L165 IcfgInterpreter]: Starting interpretation [2019-08-05 18:15:36,425 INFO L185 IcfgInterpreter]: Interpreting procedure main with input of size 1 [2019-08-05 18:15:36,495 INFO L169 IcfgInterpreter]: Interpretation finished [2019-08-05 18:15:36,495 INFO L177 IcfgInterpreter]: Final predicates for locations of interest are: [2019-08-05 18:15:36,498 INFO L179 IcfgInterpreter]: Location mainErr0ASSERT_VIOLATIONASSERT has predicate 18#(and (not main_verum) (not (= main_y 0)) (or (<= 1 main_y) (= main_y 0)) (exists ((v_alwaysTrue_ret_BEFORE_RETURN_1 Bool)) (and (exists ((v_notZero_ret_BEFORE_RETURN_1 Bool)) (and (or (and (not v_alwaysTrue_ret_BEFORE_RETURN_1) (not v_notZero_ret_BEFORE_RETURN_1)) (and v_alwaysTrue_ret_BEFORE_RETURN_1 v_notZero_ret_BEFORE_RETURN_1)) (or (and (not (= main_y 0)) v_notZero_ret_BEFORE_RETURN_1) (= main_y 0)))) (or (and (not main_verum) (not v_alwaysTrue_ret_BEFORE_RETURN_1)) (and v_alwaysTrue_ret_BEFORE_RETURN_1 main_verum))))) [2019-08-05 18:15:36,499 WARN L88 terpretationObserver]: Some locations of interest might be reachable, see reported results. [2019-08-05 18:15:36,507 INFO L132 PluginConnector]: ------------------------ END Symbolic Interpretation---------------------------- [2019-08-05 18:15:36,510 INFO L168 Benchmark]: Toolchain (without parser) took 611.19 ms. Allocated memory is still 138.9 MB. Free memory was 107.4 MB in the beginning and 88.7 MB in the end (delta: 18.7 MB). Peak memory consumption was 18.7 MB. Max. memory is 7.1 GB. [2019-08-05 18:15:36,511 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.26 ms. Allocated memory is still 138.9 MB. Free memory was 108.6 MB in the beginning and 108.4 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. [2019-08-05 18:15:36,512 INFO L168 Benchmark]: Boogie Preprocessor took 50.65 ms. Allocated memory is still 138.9 MB. Free memory was 107.4 MB in the beginning and 105.3 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 7.1 GB. [2019-08-05 18:15:36,514 INFO L168 Benchmark]: RCFGBuilder took 414.10 ms. Allocated memory is still 138.9 MB. Free memory was 105.3 MB in the beginning and 93.6 MB in the end (delta: 11.7 MB). Peak memory consumption was 11.7 MB. Max. memory is 7.1 GB. [2019-08-05 18:15:36,515 INFO L168 Benchmark]: Symbolic Interpretation took 142.33 ms. Allocated memory is still 138.9 MB. Free memory was 93.6 MB in the beginning and 88.7 MB in the end (delta: 4.9 MB). Peak memory consumption was 4.9 MB. Max. memory is 7.1 GB. [2019-08-05 18:15:36,520 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 0.26 ms. Allocated memory is still 138.9 MB. Free memory was 108.6 MB in the beginning and 108.4 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. * Boogie Preprocessor took 50.65 ms. Allocated memory is still 138.9 MB. Free memory was 107.4 MB in the beginning and 105.3 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 7.1 GB. * RCFGBuilder took 414.10 ms. Allocated memory is still 138.9 MB. Free memory was 105.3 MB in the beginning and 93.6 MB in the end (delta: 11.7 MB). Peak memory consumption was 11.7 MB. Max. memory is 7.1 GB. * Symbolic Interpretation took 142.33 ms. Allocated memory is still 138.9 MB. Free memory was 93.6 MB in the beginning and 88.7 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...