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-b03553c [2019-08-05 18:15:25,891 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-08-05 18:15:25,893 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-08-05 18:15:25,905 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-08-05 18:15:25,905 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-08-05 18:15:25,906 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-08-05 18:15:25,908 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-08-05 18:15:25,910 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-08-05 18:15:25,911 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-08-05 18:15:25,912 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-08-05 18:15:25,914 INFO L181 SettingsManager]: Resetting Symbolic Interpretation preferences to default values [2019-08-05 18:15:25,915 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-08-05 18:15:25,915 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-08-05 18:15:25,916 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-08-05 18:15:25,917 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-08-05 18:15:25,918 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-08-05 18:15:25,919 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-08-05 18:15:25,920 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-08-05 18:15:25,922 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-08-05 18:15:25,924 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-08-05 18:15:25,926 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-08-05 18:15:25,928 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-08-05 18:15:25,929 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-08-05 18:15:25,930 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-08-05 18:15:25,933 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-08-05 18:15:25,936 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-08-05 18:15:25,939 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-08-05 18:15:25,940 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-08-05 18:15:25,941 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-08-05 18:15:25,942 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-08-05 18:15:25,943 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-08-05 18:15:25,943 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-08-05 18:15:25,944 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-08-05 18:15:25,944 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-08-05 18:15:25,946 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-08-05 18:15:25,949 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-08-05 18:15:25,992 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-08-05 18:15:26,009 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-08-05 18:15:26,013 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-08-05 18:15:26,015 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2019-08-05 18:15:26,016 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2019-08-05 18:15:26,017 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/regression/bpl/interprocedural/BugBackwardPredicates02.bpl [2019-08-05 18:15:26,017 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/regression/bpl/interprocedural/BugBackwardPredicates02.bpl' [2019-08-05 18:15:26,053 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-08-05 18:15:26,055 INFO L131 ToolchainWalker]: Walking toolchain with 3 elements. [2019-08-05 18:15:26,055 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-08-05 18:15:26,056 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-08-05 18:15:26,056 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-08-05 18:15:26,082 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "BugBackwardPredicates02.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 06:15:26" (1/1) ... [2019-08-05 18:15:26,084 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "BugBackwardPredicates02.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 06:15:26" (1/1) ... [2019-08-05 18:15:26,091 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "BugBackwardPredicates02.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 06:15:26" (1/1) ... [2019-08-05 18:15:26,092 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "BugBackwardPredicates02.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 06:15:26" (1/1) ... [2019-08-05 18:15:26,095 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "BugBackwardPredicates02.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 06:15:26" (1/1) ... [2019-08-05 18:15:26,099 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "BugBackwardPredicates02.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 06:15:26" (1/1) ... [2019-08-05 18:15:26,100 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "BugBackwardPredicates02.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 06:15:26" (1/1) ... [2019-08-05 18:15:26,101 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-08-05 18:15:26,102 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-08-05 18:15:26,102 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-08-05 18:15:26,103 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-08-05 18:15:26,103 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "BugBackwardPredicates02.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 06:15:26" (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 18:15:26,183 INFO L138 BoogieDeclarations]: Found implementation of procedure doNothing [2019-08-05 18:15:26,184 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-08-05 18:15:26,184 INFO L130 BoogieDeclarations]: Found specification of procedure doNothing [2019-08-05 18:15:26,184 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-08-05 18:15:26,459 INFO L275 CfgBuilder]: Using library mode [2019-08-05 18:15:26,459 INFO L283 CfgBuilder]: Removed 0 assume(true) statements. [2019-08-05 18:15:26,461 INFO L202 PluginConnector]: Adding new model BugBackwardPredicates02.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.08 06:15:26 BoogieIcfgContainer [2019-08-05 18:15:26,461 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-08-05 18:15:26,461 INFO L113 PluginConnector]: ------------------------Symbolic Interpretation---------------------------- [2019-08-05 18:15:26,462 INFO L271 PluginConnector]: Initializing Symbolic Interpretation... [2019-08-05 18:15:26,462 INFO L275 PluginConnector]: Symbolic Interpretation initialized [2019-08-05 18:15:26,463 INFO L185 PluginConnector]: Executing the observer SymbolicInterpretationObserver from plugin Symbolic Interpretation for "BugBackwardPredicates02.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.08 06:15:26" (1/1) ... [2019-08-05 18:15:26,474 INFO L148 IcfgInterpreter]: Started Sifa with 1 locations of interest [2019-08-05 18:15:26,476 INFO L155 IcfgInterpreter]: Building call graph [2019-08-05 18:15:26,483 INFO L160 IcfgInterpreter]: Initial procedures are [main] [2019-08-05 18:15:26,491 INFO L165 IcfgInterpreter]: Starting interpretation [2019-08-05 18:15:26,492 INFO L185 IcfgInterpreter]: Interpreting procedure main with input of size 1 [2019-08-05 18:15:26,603 INFO L169 IcfgInterpreter]: Interpretation finished [2019-08-05 18:15:26,603 INFO L177 IcfgInterpreter]: Final predicates for locations of interest are: [2019-08-05 18:15:26,610 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)) [2019-08-05 18:15:26,611 WARN L88 terpretationObserver]: Some locations of interest might be reachable, see reported results. [2019-08-05 18:15:26,628 INFO L132 PluginConnector]: ------------------------ END Symbolic Interpretation---------------------------- [2019-08-05 18:15:26,631 INFO L168 Benchmark]: Toolchain (without parser) took 575.38 ms. Allocated memory is still 132.6 MB. Free memory was 107.7 MB in the beginning and 90.9 MB in the end (delta: 16.8 MB). Peak memory consumption was 16.8 MB. Max. memory is 7.1 GB. [2019-08-05 18:15:26,632 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.23 ms. Allocated memory is still 132.6 MB. Free memory was 108.9 MB in the beginning and 108.7 MB in the end (delta: 209.8 kB). Peak memory consumption was 209.8 kB. Max. memory is 7.1 GB. [2019-08-05 18:15:26,634 INFO L168 Benchmark]: Boogie Preprocessor took 46.33 ms. Allocated memory is still 132.6 MB. Free memory was 107.7 MB in the beginning and 105.7 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. [2019-08-05 18:15:26,635 INFO L168 Benchmark]: RCFGBuilder took 358.92 ms. Allocated memory is still 132.6 MB. Free memory was 105.5 MB in the beginning and 95.4 MB in the end (delta: 10.1 MB). Peak memory consumption was 10.1 MB. Max. memory is 7.1 GB. [2019-08-05 18:15:26,641 INFO L168 Benchmark]: Symbolic Interpretation took 166.61 ms. Allocated memory is still 132.6 MB. Free memory was 95.4 MB in the beginning and 90.9 MB in the end (delta: 4.5 MB). Peak memory consumption was 4.5 MB. Max. memory is 7.1 GB. [2019-08-05 18:15:26,650 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 0.23 ms. Allocated memory is still 132.6 MB. Free memory was 108.9 MB in the beginning and 108.7 MB in the end (delta: 209.8 kB). Peak memory consumption was 209.8 kB. Max. memory is 7.1 GB. * Boogie Preprocessor took 46.33 ms. Allocated memory is still 132.6 MB. Free memory was 107.7 MB in the beginning and 105.7 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. * RCFGBuilder took 358.92 ms. Allocated memory is still 132.6 MB. Free memory was 105.5 MB in the beginning and 95.4 MB in the end (delta: 10.1 MB). Peak memory consumption was 10.1 MB. Max. memory is 7.1 GB. * Symbolic Interpretation took 166.61 ms. Allocated memory is still 132.6 MB. Free memory was 95.4 MB in the beginning and 90.9 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...