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/BugBackwardPredicates02.bpl -------------------------------------------------------------------------------- This is Ultimate 0.1.24-3b9210c [2019-08-06 16:58:15,914 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-08-06 16:58:15,916 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-08-06 16:58:15,928 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-08-06 16:58:15,929 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-08-06 16:58:15,930 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-08-06 16:58:15,931 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-08-06 16:58:15,933 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-08-06 16:58:15,935 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-08-06 16:58:15,936 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-08-06 16:58:15,937 INFO L181 SettingsManager]: Resetting Symbolic Interpretation preferences to default values [2019-08-06 16:58:15,938 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-08-06 16:58:15,938 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-08-06 16:58:15,939 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-08-06 16:58:15,940 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-08-06 16:58:15,941 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-08-06 16:58:15,942 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-08-06 16:58:15,943 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-08-06 16:58:15,945 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-08-06 16:58:15,947 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-08-06 16:58:15,948 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-08-06 16:58:15,949 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-08-06 16:58:15,950 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-08-06 16:58:15,951 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-08-06 16:58:15,953 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-08-06 16:58:15,954 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-08-06 16:58:15,954 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-08-06 16:58:15,955 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-08-06 16:58:15,955 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-08-06 16:58:15,956 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-08-06 16:58:15,957 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-08-06 16:58:15,958 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-08-06 16:58:15,959 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-08-06 16:58:15,959 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-08-06 16:58:15,960 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-08-06 16:58:15,961 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-08-06 16:58:15,961 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-08-06 16:58:15,962 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-08-06 16:58:15,962 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-08-06 16:58:15,963 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-08-06 16:58:15,964 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-08-06 16:58:16,008 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-08-06 16:58:16,026 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-08-06 16:58:16,029 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-08-06 16:58:16,031 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2019-08-06 16:58:16,031 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2019-08-06 16:58:16,032 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/regression/bpl/interprocedural/BugBackwardPredicates02.bpl [2019-08-06 16:58:16,032 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/regression/bpl/interprocedural/BugBackwardPredicates02.bpl' [2019-08-06 16:58:16,066 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-08-06 16:58:16,067 INFO L131 ToolchainWalker]: Walking toolchain with 3 elements. [2019-08-06 16:58:16,068 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-08-06 16:58:16,068 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-08-06 16:58:16,068 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-08-06 16:58:16,092 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "BugBackwardPredicates02.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 06.08 04:58:16" (1/1) ... [2019-08-06 16:58:16,094 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "BugBackwardPredicates02.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 06.08 04:58:16" (1/1) ... [2019-08-06 16:58:16,101 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "BugBackwardPredicates02.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 06.08 04:58:16" (1/1) ... [2019-08-06 16:58:16,101 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "BugBackwardPredicates02.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 06.08 04:58:16" (1/1) ... [2019-08-06 16:58:16,103 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "BugBackwardPredicates02.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 06.08 04:58:16" (1/1) ... [2019-08-06 16:58:16,106 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "BugBackwardPredicates02.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 06.08 04:58:16" (1/1) ... [2019-08-06 16:58:16,107 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "BugBackwardPredicates02.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 06.08 04:58:16" (1/1) ... [2019-08-06 16:58:16,108 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-08-06 16:58:16,109 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-08-06 16:58:16,109 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-08-06 16:58:16,110 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-08-06 16:58:16,111 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "BugBackwardPredicates02.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 06.08 04:58:16" (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 16:58:16,181 INFO L138 BoogieDeclarations]: Found implementation of procedure doNothing [2019-08-06 16:58:16,181 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-08-06 16:58:16,181 INFO L130 BoogieDeclarations]: Found specification of procedure doNothing [2019-08-06 16:58:16,182 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-08-06 16:58:16,459 INFO L275 CfgBuilder]: Using library mode [2019-08-06 16:58:16,460 INFO L283 CfgBuilder]: Removed 0 assume(true) statements. [2019-08-06 16:58:16,461 INFO L202 PluginConnector]: Adding new model BugBackwardPredicates02.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.08 04:58:16 BoogieIcfgContainer [2019-08-06 16:58:16,461 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-08-06 16:58:16,462 INFO L113 PluginConnector]: ------------------------Symbolic Interpretation---------------------------- [2019-08-06 16:58:16,462 INFO L271 PluginConnector]: Initializing Symbolic Interpretation... [2019-08-06 16:58:16,462 INFO L275 PluginConnector]: Symbolic Interpretation initialized [2019-08-06 16:58:16,463 INFO L185 PluginConnector]: Executing the observer SymbolicInterpretationObserver from plugin Symbolic Interpretation for "BugBackwardPredicates02.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.08 04:58:16" (1/1) ... [2019-08-06 16:58:16,481 INFO L148 IcfgInterpreter]: Started Sifa with 1 locations of interest [2019-08-06 16:58:16,484 INFO L155 IcfgInterpreter]: Building call graph [2019-08-06 16:58:16,498 INFO L160 IcfgInterpreter]: Initial procedures are [main] [2019-08-06 16:58:16,513 INFO L165 IcfgInterpreter]: Starting interpretation [2019-08-06 16:58:16,516 INFO L185 IcfgInterpreter]: Interpreting procedure main with input of size 1 [2019-08-06 16:58:16,589 INFO L169 IcfgInterpreter]: Interpretation finished [2019-08-06 16:58:16,590 INFO L177 IcfgInterpreter]: Final predicates for locations of interest are: [2019-08-06 16:58:16,593 INFO L179 IcfgInterpreter]: Location mainErr0ASSERT_VIOLATIONASSERT has predicate 14#(and (not main_a) (exists ((v_main_b_8 Bool) (v_main_a_8 Bool)) (and (or (and main_c (not main_a) (= v_main_b_8 main_b)) (and (= v_main_a_8 main_a) (not main_c) (not main_b))) v_main_b_8 v_main_a_8)) (not main_b)) [2019-08-06 16:58:16,596 WARN L88 terpretationObserver]: Some locations of interest might be reachable, see reported results. [2019-08-06 16:58:16,615 INFO L132 PluginConnector]: ------------------------ END Symbolic Interpretation---------------------------- [2019-08-06 16:58:16,621 INFO L168 Benchmark]: Toolchain (without parser) took 550.26 ms. Allocated memory is still 136.3 MB. Free memory was 104.6 MB in the beginning and 87.8 MB in the end (delta: 16.8 MB). Peak memory consumption was 16.8 MB. Max. memory is 7.1 GB. [2019-08-06 16:58:16,625 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.22 ms. Allocated memory is still 136.3 MB. Free memory was 105.9 MB in the beginning and 105.6 MB in the end (delta: 209.8 kB). Peak memory consumption was 209.8 kB. Max. memory is 7.1 GB. [2019-08-06 16:58:16,627 INFO L168 Benchmark]: Boogie Preprocessor took 40.73 ms. Allocated memory is still 136.3 MB. Free memory was 104.6 MB in the beginning and 102.6 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. [2019-08-06 16:58:16,631 INFO L168 Benchmark]: RCFGBuilder took 352.20 ms. Allocated memory is still 136.3 MB. Free memory was 102.4 MB in the beginning and 92.3 MB in the end (delta: 10.1 MB). Peak memory consumption was 10.1 MB. Max. memory is 7.1 GB. [2019-08-06 16:58:16,634 INFO L168 Benchmark]: Symbolic Interpretation took 153.77 ms. Allocated memory is still 136.3 MB. Free memory was 92.3 MB in the beginning and 87.8 MB in the end (delta: 4.5 MB). Peak memory consumption was 4.5 MB. Max. memory is 7.1 GB. [2019-08-06 16:58:16,646 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.symbolicinterpretation: - UnprovableResult [Line: 30]: 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 0.22 ms. Allocated memory is still 136.3 MB. Free memory was 105.9 MB in the beginning and 105.6 MB in the end (delta: 209.8 kB). Peak memory consumption was 209.8 kB. Max. memory is 7.1 GB. * Boogie Preprocessor took 40.73 ms. Allocated memory is still 136.3 MB. Free memory was 104.6 MB in the beginning and 102.6 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. * RCFGBuilder took 352.20 ms. Allocated memory is still 136.3 MB. Free memory was 102.4 MB in the beginning and 92.3 MB in the end (delta: 10.1 MB). Peak memory consumption was 10.1 MB. Max. memory is 7.1 GB. * Symbolic Interpretation took 153.77 ms. Allocated memory is still 136.3 MB. Free memory was 92.3 MB in the beginning and 87.8 MB in the end (delta: 4.5 MB). Peak memory consumption was 4.5 MB. Max. memory is 7.1 GB. RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request...