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/openBugs/bug-unreachable-return.bpl -------------------------------------------------------------------------------- This is Ultimate 0.1.24-4ddfff8 [2019-08-09 14:20:46,239 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-08-09 14:20:46,241 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-08-09 14:20:46,259 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-08-09 14:20:46,259 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-08-09 14:20:46,261 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-08-09 14:20:46,263 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-08-09 14:20:46,273 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-08-09 14:20:46,277 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-08-09 14:20:46,281 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-08-09 14:20:46,282 INFO L181 SettingsManager]: Resetting Symbolic Interpretation preferences to default values [2019-08-09 14:20:46,284 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-08-09 14:20:46,285 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-08-09 14:20:46,288 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-08-09 14:20:46,290 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-08-09 14:20:46,292 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-08-09 14:20:46,294 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-08-09 14:20:46,296 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-08-09 14:20:46,298 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-08-09 14:20:46,303 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-08-09 14:20:46,307 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-08-09 14:20:46,309 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-08-09 14:20:46,312 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-08-09 14:20:46,313 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-08-09 14:20:46,315 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-08-09 14:20:46,315 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-08-09 14:20:46,315 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-08-09 14:20:46,318 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-08-09 14:20:46,319 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-08-09 14:20:46,321 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-08-09 14:20:46,321 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-08-09 14:20:46,323 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-08-09 14:20:46,324 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-08-09 14:20:46,324 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-08-09 14:20:46,327 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-08-09 14:20:46,327 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-08-09 14:20:46,328 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-08-09 14:20:46,328 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-08-09 14:20:46,328 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-08-09 14:20:46,329 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-08-09 14:20:46,329 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-08-09 14:20:46,383 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-08-09 14:20:46,403 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-08-09 14:20:46,407 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-08-09 14:20:46,410 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2019-08-09 14:20:46,411 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2019-08-09 14:20:46,412 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/openBugs/bug-unreachable-return.bpl [2019-08-09 14:20:46,412 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/openBugs/bug-unreachable-return.bpl' [2019-08-09 14:20:46,481 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-08-09 14:20:46,483 INFO L131 ToolchainWalker]: Walking toolchain with 3 elements. [2019-08-09 14:20:46,483 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-08-09 14:20:46,484 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-08-09 14:20:46,484 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-08-09 14:20:46,506 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "bug-unreachable-return.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 09.08 02:20:46" (1/1) ... [2019-08-09 14:20:46,508 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "bug-unreachable-return.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 09.08 02:20:46" (1/1) ... [2019-08-09 14:20:46,517 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "bug-unreachable-return.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 09.08 02:20:46" (1/1) ... [2019-08-09 14:20:46,517 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "bug-unreachable-return.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 09.08 02:20:46" (1/1) ... [2019-08-09 14:20:46,522 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "bug-unreachable-return.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 09.08 02:20:46" (1/1) ... [2019-08-09 14:20:46,524 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "bug-unreachable-return.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 09.08 02:20:46" (1/1) ... [2019-08-09 14:20:46,525 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "bug-unreachable-return.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 09.08 02:20:46" (1/1) ... [2019-08-09 14:20:46,528 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-08-09 14:20:46,529 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-08-09 14:20:46,529 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-08-09 14:20:46,529 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-08-09 14:20:46,530 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "bug-unreachable-return.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 09.08 02:20:46" (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 14:20:46,590 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2019-08-09 14:20:46,591 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-08-09 14:20:46,591 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-08-09 14:20:46,591 INFO L124 BoogieDeclarations]: Specification and implementation of procedure findPublicKey given in one single declaration [2019-08-09 14:20:46,592 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2019-08-09 14:20:46,592 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2019-08-09 14:20:46,592 INFO L124 BoogieDeclarations]: Specification and implementation of procedure bobToRjh given in one single declaration [2019-08-09 14:20:46,592 INFO L130 BoogieDeclarations]: Found specification of procedure bobToRjh [2019-08-09 14:20:46,592 INFO L138 BoogieDeclarations]: Found implementation of procedure bobToRjh [2019-08-09 14:20:46,593 INFO L124 BoogieDeclarations]: Specification and implementation of procedure main given in one single declaration [2019-08-09 14:20:46,593 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-08-09 14:20:46,593 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-08-09 14:20:46,594 INFO L124 BoogieDeclarations]: Specification and implementation of procedure mail given in one single declaration [2019-08-09 14:20:46,594 INFO L130 BoogieDeclarations]: Found specification of procedure mail [2019-08-09 14:20:46,594 INFO L138 BoogieDeclarations]: Found implementation of procedure mail [2019-08-09 14:20:46,594 INFO L124 BoogieDeclarations]: Specification and implementation of procedure outgoing__wrappee__AutoResponder given in one single declaration [2019-08-09 14:20:46,594 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__AutoResponder [2019-08-09 14:20:46,594 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__AutoResponder [2019-08-09 14:20:46,595 INFO L124 BoogieDeclarations]: Specification and implementation of procedure outgoing given in one single declaration [2019-08-09 14:20:46,595 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2019-08-09 14:20:46,595 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2019-08-09 14:20:46,596 INFO L124 BoogieDeclarations]: Specification and implementation of procedure incoming__wrappee__Sign given in one single declaration [2019-08-09 14:20:46,596 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Sign [2019-08-09 14:20:46,596 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Sign [2019-08-09 14:20:46,597 INFO L124 BoogieDeclarations]: Specification and implementation of procedure incoming given in one single declaration [2019-08-09 14:20:46,600 INFO L130 BoogieDeclarations]: Found specification of procedure incoming [2019-08-09 14:20:46,600 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming [2019-08-09 14:20:46,601 INFO L124 BoogieDeclarations]: Specification and implementation of procedure sendEmail given in one single declaration [2019-08-09 14:20:46,601 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2019-08-09 14:20:46,601 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2019-08-09 14:20:46,602 INFO L124 BoogieDeclarations]: Specification and implementation of procedure autoRespond given in one single declaration [2019-08-09 14:20:46,602 INFO L130 BoogieDeclarations]: Found specification of procedure autoRespond [2019-08-09 14:20:46,603 INFO L138 BoogieDeclarations]: Found implementation of procedure autoRespond [2019-08-09 14:20:46,603 INFO L124 BoogieDeclarations]: Specification and implementation of procedure verify given in one single declaration [2019-08-09 14:20:46,603 INFO L130 BoogieDeclarations]: Found specification of procedure verify [2019-08-09 14:20:46,603 INFO L138 BoogieDeclarations]: Found implementation of procedure verify [2019-08-09 14:20:46,603 INFO L124 BoogieDeclarations]: Specification and implementation of procedure getEmailTo given in one single declaration [2019-08-09 14:20:46,604 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2019-08-09 14:20:46,604 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2019-08-09 14:20:46,606 INFO L124 BoogieDeclarations]: Specification and implementation of procedure setEmailTo given in one single declaration [2019-08-09 14:20:46,606 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2019-08-09 14:20:46,606 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2019-08-09 14:20:46,606 INFO L124 BoogieDeclarations]: Specification and implementation of procedure __utac_acc__SignVerify_spec__2 given in one single declaration [2019-08-09 14:20:46,606 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__SignVerify_spec__2 [2019-08-09 14:20:46,607 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__SignVerify_spec__2 [2019-08-09 14:20:46,607 INFO L124 BoogieDeclarations]: Specification and implementation of procedure test given in one single declaration [2019-08-09 14:20:46,607 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-08-09 14:20:46,608 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-08-09 14:20:46,904 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-08-09 14:20:46,904 INFO L283 CfgBuilder]: Removed 0 assume(true) statements. [2019-08-09 14:20:46,905 INFO L202 PluginConnector]: Adding new model bug-unreachable-return.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.08 02:20:46 BoogieIcfgContainer [2019-08-09 14:20:46,906 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-08-09 14:20:46,906 INFO L113 PluginConnector]: ------------------------Symbolic Interpretation---------------------------- [2019-08-09 14:20:46,906 INFO L271 PluginConnector]: Initializing Symbolic Interpretation... [2019-08-09 14:20:46,907 INFO L275 PluginConnector]: Symbolic Interpretation initialized [2019-08-09 14:20:46,908 INFO L185 PluginConnector]: Executing the observer SymbolicInterpretationObserver from plugin Symbolic Interpretation for "bug-unreachable-return.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.08 02:20:46" (1/1) ... [2019-08-09 14:20:47,150 WARN L88 terpretationObserver]: Some locations of interest might be reachable, see reported results. [2019-08-09 14:20:47,161 INFO L132 PluginConnector]: ------------------------ END Symbolic Interpretation---------------------------- [2019-08-09 14:20:47,165 INFO L168 Benchmark]: Toolchain (without parser) took 680.59 ms. Allocated memory is still 141.6 MB. Free memory was 109.8 MB in the beginning and 77.8 MB in the end (delta: 32.0 MB). Peak memory consumption was 32.0 MB. Max. memory is 7.1 GB. [2019-08-09 14:20:47,166 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.23 ms. Allocated memory is still 141.6 MB. Free memory was 111.3 MB in the beginning and 111.1 MB in the end (delta: 209.9 kB). Peak memory consumption was 209.9 kB. Max. memory is 7.1 GB. [2019-08-09 14:20:47,167 INFO L168 Benchmark]: Boogie Preprocessor took 44.68 ms. Allocated memory is still 141.6 MB. Free memory was 109.8 MB in the beginning and 107.5 MB in the end (delta: 2.3 MB). Peak memory consumption was 2.3 MB. Max. memory is 7.1 GB. [2019-08-09 14:20:47,169 INFO L168 Benchmark]: RCFGBuilder took 377.25 ms. Allocated memory is still 141.6 MB. Free memory was 107.5 MB in the beginning and 87.5 MB in the end (delta: 20.0 MB). Peak memory consumption was 20.0 MB. Max. memory is 7.1 GB. [2019-08-09 14:20:47,170 INFO L168 Benchmark]: Symbolic Interpretation took 255.38 ms. Allocated memory is still 141.6 MB. Free memory was 87.5 MB in the beginning and 77.8 MB in the end (delta: 9.7 MB). Peak memory consumption was 9.7 MB. Max. memory is 7.1 GB. [2019-08-09 14:20:47,174 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.symbolicinterpretation: - UnprovableResult [Line: 196]: 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 112#(or (and (= __utac_acc__SignVerify_spec__2_~client |__utac_acc__SignVerify_spec__2_#in~client|) (= ~__ste_email_to0 0) (not (= 0 __utac_acc__SignVerify_spec__2_~pubkey~22)) (= 0 |__utac_acc__SignVerify_spec__2_#in~client|) (= |__utac_acc__SignVerify_spec__2_#in~msg| 0) (= |__utac_acc__SignVerify_spec__2_#in~msg| __utac_acc__SignVerify_spec__2_~msg)) (and (= 1 |__utac_acc__SignVerify_spec__2_#in~client|) (= __utac_acc__SignVerify_spec__2_~client |__utac_acc__SignVerify_spec__2_#in~client|) (not (= 0 __utac_acc__SignVerify_spec__2_~pubkey~22)) (= |__utac_acc__SignVerify_spec__2_#in~msg| 0) (= ~__ste_email_to0 1) (= |__utac_acc__SignVerify_spec__2_#in~msg| __utac_acc__SignVerify_spec__2_~msg))). 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 141.6 MB. Free memory was 111.3 MB in the beginning and 111.1 MB in the end (delta: 209.9 kB). Peak memory consumption was 209.9 kB. Max. memory is 7.1 GB. * Boogie Preprocessor took 44.68 ms. Allocated memory is still 141.6 MB. Free memory was 109.8 MB in the beginning and 107.5 MB in the end (delta: 2.3 MB). Peak memory consumption was 2.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 377.25 ms. Allocated memory is still 141.6 MB. Free memory was 107.5 MB in the beginning and 87.5 MB in the end (delta: 20.0 MB). Peak memory consumption was 20.0 MB. Max. memory is 7.1 GB. * Symbolic Interpretation took 255.38 ms. Allocated memory is still 141.6 MB. Free memory was 87.5 MB in the beginning and 77.8 MB in the end (delta: 9.7 MB). Peak memory consumption was 9.7 MB. Max. memory is 7.1 GB. RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request...