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/recursive/regression/bpl/TwoContracts.bpl -------------------------------------------------------------------------------- This is Ultimate 0.1.24-3b9210c [2019-08-06 16:57:56,857 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-08-06 16:57:56,859 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-08-06 16:57:56,870 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-08-06 16:57:56,871 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-08-06 16:57:56,872 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-08-06 16:57:56,873 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-08-06 16:57:56,875 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-08-06 16:57:56,877 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-08-06 16:57:56,877 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-08-06 16:57:56,878 INFO L181 SettingsManager]: Resetting Symbolic Interpretation preferences to default values [2019-08-06 16:57:56,880 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-08-06 16:57:56,880 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-08-06 16:57:56,881 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-08-06 16:57:56,882 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-08-06 16:57:56,883 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-08-06 16:57:56,884 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-08-06 16:57:56,885 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-08-06 16:57:56,887 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-08-06 16:57:56,889 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-08-06 16:57:56,891 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-08-06 16:57:56,892 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-08-06 16:57:56,893 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-08-06 16:57:56,894 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-08-06 16:57:56,896 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-08-06 16:57:56,897 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-08-06 16:57:56,897 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-08-06 16:57:56,898 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-08-06 16:57:56,899 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-08-06 16:57:56,900 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-08-06 16:57:56,900 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-08-06 16:57:56,901 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-08-06 16:57:56,902 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-08-06 16:57:56,902 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-08-06 16:57:56,903 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-08-06 16:57:56,904 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-08-06 16:57:56,904 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-08-06 16:57:56,905 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-08-06 16:57:56,905 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-08-06 16:57:56,906 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-08-06 16:57:56,907 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-08-06 16:57:56,938 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-08-06 16:57:56,951 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-08-06 16:57:56,956 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-08-06 16:57:56,957 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2019-08-06 16:57:56,958 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2019-08-06 16:57:56,958 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/recursive/regression/bpl/TwoContracts.bpl [2019-08-06 16:57:56,959 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/recursive/regression/bpl/TwoContracts.bpl' [2019-08-06 16:57:56,984 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-08-06 16:57:56,986 INFO L131 ToolchainWalker]: Walking toolchain with 3 elements. [2019-08-06 16:57:56,986 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-08-06 16:57:56,987 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-08-06 16:57:56,987 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-08-06 16:57:57,005 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "TwoContracts.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 06.08 04:57:56" (1/1) ... [2019-08-06 16:57:57,007 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "TwoContracts.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 06.08 04:57:56" (1/1) ... [2019-08-06 16:57:57,014 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "TwoContracts.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 06.08 04:57:56" (1/1) ... [2019-08-06 16:57:57,015 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "TwoContracts.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 06.08 04:57:56" (1/1) ... [2019-08-06 16:57:57,019 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "TwoContracts.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 06.08 04:57:56" (1/1) ... [2019-08-06 16:57:57,020 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "TwoContracts.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 06.08 04:57:56" (1/1) ... [2019-08-06 16:57:57,021 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "TwoContracts.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 06.08 04:57:56" (1/1) ... [2019-08-06 16:57:57,023 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-08-06 16:57:57,024 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-08-06 16:57:57,024 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-08-06 16:57:57,024 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-08-06 16:57:57,028 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "TwoContracts.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 06.08 04:57:56" (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 16:57:57,098 INFO L130 BoogieDeclarations]: Found specification of procedure caller [2019-08-06 16:57:57,099 INFO L138 BoogieDeclarations]: Found implementation of procedure caller [2019-08-06 16:57:57,099 INFO L130 BoogieDeclarations]: Found specification of procedure callee [2019-08-06 16:57:57,099 INFO L138 BoogieDeclarations]: Found implementation of procedure callee [2019-08-06 16:57:57,278 INFO L275 CfgBuilder]: Using library mode [2019-08-06 16:57:57,278 INFO L283 CfgBuilder]: Removed 0 assume(true) statements. [2019-08-06 16:57:57,279 INFO L202 PluginConnector]: Adding new model TwoContracts.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.08 04:57:57 BoogieIcfgContainer [2019-08-06 16:57:57,279 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-08-06 16:57:57,280 INFO L113 PluginConnector]: ------------------------Symbolic Interpretation---------------------------- [2019-08-06 16:57:57,280 INFO L271 PluginConnector]: Initializing Symbolic Interpretation... [2019-08-06 16:57:57,280 INFO L275 PluginConnector]: Symbolic Interpretation initialized [2019-08-06 16:57:57,281 INFO L185 PluginConnector]: Executing the observer SymbolicInterpretationObserver from plugin Symbolic Interpretation for "TwoContracts.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.08 04:57:57" (1/1) ... [2019-08-06 16:57:57,290 INFO L148 IcfgInterpreter]: Started Sifa with 2 locations of interest [2019-08-06 16:57:57,292 INFO L155 IcfgInterpreter]: Building call graph [2019-08-06 16:57:57,300 INFO L160 IcfgInterpreter]: Initial procedures are [caller] [2019-08-06 16:57:57,308 INFO L165 IcfgInterpreter]: Starting interpretation [2019-08-06 16:57:57,310 INFO L185 IcfgInterpreter]: Interpreting procedure caller with input of size 1 [2019-08-06 16:57:57,365 INFO L169 IcfgInterpreter]: Interpretation finished [2019-08-06 16:57:57,366 INFO L177 IcfgInterpreter]: Final predicates for locations of interest are: [2019-08-06 16:57:57,368 INFO L179 IcfgInterpreter]: Location callerErr1ASSERT_VIOLATIONASSERT has predicate 11#false [2019-08-06 16:57:57,369 INFO L179 IcfgInterpreter]: Location callerErr0ASSERT_VIOLATIONASSERT has predicate 14#(and (= caller_x 2) (not (= 1 g))) [2019-08-06 16:57:57,370 WARN L88 terpretationObserver]: Some locations of interest might be reachable, see reported results. [2019-08-06 16:57:57,377 INFO L132 PluginConnector]: ------------------------ END Symbolic Interpretation---------------------------- [2019-08-06 16:57:57,380 INFO L168 Benchmark]: Toolchain (without parser) took 393.50 ms. Allocated memory is still 138.9 MB. Free memory was 107.5 MB in the beginning and 90.8 MB in the end (delta: 16.8 MB). Peak memory consumption was 16.8 MB. Max. memory is 7.1 GB. [2019-08-06 16:57:57,382 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.22 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: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2019-08-06 16:57:57,383 INFO L168 Benchmark]: Boogie Preprocessor took 36.75 ms. Allocated memory is still 138.9 MB. Free memory was 107.3 MB in the beginning and 105.3 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. [2019-08-06 16:57:57,385 INFO L168 Benchmark]: RCFGBuilder took 255.45 ms. Allocated memory is still 138.9 MB. Free memory was 105.3 MB in the beginning and 95.7 MB in the end (delta: 9.7 MB). Peak memory consumption was 9.7 MB. Max. memory is 7.1 GB. [2019-08-06 16:57:57,386 INFO L168 Benchmark]: Symbolic Interpretation took 98.02 ms. Allocated memory is still 138.9 MB. Free memory was 95.7 MB in the beginning and 90.8 MB in the end (delta: 4.9 MB). Peak memory consumption was 4.9 MB. Max. memory is 7.1 GB. [2019-08-06 16:57:57,390 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.symbolicinterpretation: - PositiveResult [Line: 19]: assertion always holds For all program executions holds that assertion always holds at this location - UnprovableResult [Line: 18]: 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 138.9 MB. Free memory was 108.6 MB in the beginning and 108.4 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * Boogie Preprocessor took 36.75 ms. Allocated memory is still 138.9 MB. Free memory was 107.3 MB in the beginning and 105.3 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. * RCFGBuilder took 255.45 ms. Allocated memory is still 138.9 MB. Free memory was 105.3 MB in the beginning and 95.7 MB in the end (delta: 9.7 MB). Peak memory consumption was 9.7 MB. Max. memory is 7.1 GB. * Symbolic Interpretation took 98.02 ms. Allocated memory is still 138.9 MB. Free memory was 95.7 MB in the beginning and 90.8 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...