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/toy/tooDifficultLoopInvariant/HiddenEquality-Safe.bpl -------------------------------------------------------------------------------- This is Ultimate 0.1.24-b8c145f [2019-08-05 11:48:43,283 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-08-05 11:48:43,285 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-08-05 11:48:43,296 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-08-05 11:48:43,297 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-08-05 11:48:43,298 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-08-05 11:48:43,299 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-08-05 11:48:43,301 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-08-05 11:48:43,303 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-08-05 11:48:43,304 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-08-05 11:48:43,305 INFO L181 SettingsManager]: Resetting Symbolic Interpretation preferences to default values [2019-08-05 11:48:43,305 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-08-05 11:48:43,305 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-08-05 11:48:43,306 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-08-05 11:48:43,307 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-08-05 11:48:43,308 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-08-05 11:48:43,309 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-08-05 11:48:43,310 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-08-05 11:48:43,312 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-08-05 11:48:43,314 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-08-05 11:48:43,315 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-08-05 11:48:43,316 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-08-05 11:48:43,317 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-08-05 11:48:43,318 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-08-05 11:48:43,321 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-08-05 11:48:43,321 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-08-05 11:48:43,321 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-08-05 11:48:43,322 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-08-05 11:48:43,322 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-08-05 11:48:43,326 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-08-05 11:48:43,327 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-08-05 11:48:43,328 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-08-05 11:48:43,330 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-08-05 11:48:43,331 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-08-05 11:48:43,332 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-08-05 11:48:43,332 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-08-05 11:48:43,333 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-08-05 11:48:43,333 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-08-05 11:48:43,333 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-08-05 11:48:43,336 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-08-05 11:48:43,337 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-08-05 11:48:43,385 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-08-05 11:48:43,397 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-08-05 11:48:43,399 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-08-05 11:48:43,401 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2019-08-05 11:48:43,401 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2019-08-05 11:48:43,401 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/toy/tooDifficultLoopInvariant/HiddenEquality-Safe.bpl [2019-08-05 11:48:43,402 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/toy/tooDifficultLoopInvariant/HiddenEquality-Safe.bpl' [2019-08-05 11:48:43,428 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-08-05 11:48:43,430 INFO L131 ToolchainWalker]: Walking toolchain with 3 elements. [2019-08-05 11:48:43,430 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-08-05 11:48:43,431 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-08-05 11:48:43,431 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-08-05 11:48:43,456 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "HiddenEquality-Safe.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 11:48:43" (1/1) ... [2019-08-05 11:48:43,457 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "HiddenEquality-Safe.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 11:48:43" (1/1) ... [2019-08-05 11:48:43,464 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "HiddenEquality-Safe.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 11:48:43" (1/1) ... [2019-08-05 11:48:43,465 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "HiddenEquality-Safe.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 11:48:43" (1/1) ... [2019-08-05 11:48:43,467 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "HiddenEquality-Safe.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 11:48:43" (1/1) ... [2019-08-05 11:48:43,470 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "HiddenEquality-Safe.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 11:48:43" (1/1) ... [2019-08-05 11:48:43,471 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "HiddenEquality-Safe.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 11:48:43" (1/1) ... [2019-08-05 11:48:43,472 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-08-05 11:48:43,473 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-08-05 11:48:43,474 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-08-05 11:48:43,474 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-08-05 11:48:43,475 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "HiddenEquality-Safe.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 11:48:43" (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 11:48:43,546 INFO L124 BoogieDeclarations]: Specification and implementation of procedure main given in one single declaration [2019-08-05 11:48:43,546 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-08-05 11:48:43,546 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-08-05 11:48:43,758 INFO L275 CfgBuilder]: Using library mode [2019-08-05 11:48:43,759 INFO L283 CfgBuilder]: Removed 1 assume(true) statements. [2019-08-05 11:48:43,760 INFO L202 PluginConnector]: Adding new model HiddenEquality-Safe.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.08 11:48:43 BoogieIcfgContainer [2019-08-05 11:48:43,760 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-08-05 11:48:43,761 INFO L113 PluginConnector]: ------------------------Symbolic Interpretation---------------------------- [2019-08-05 11:48:43,761 INFO L271 PluginConnector]: Initializing Symbolic Interpretation... [2019-08-05 11:48:43,761 INFO L275 PluginConnector]: Symbolic Interpretation initialized [2019-08-05 11:48:43,763 INFO L185 PluginConnector]: Executing the observer SymbolicInterpretationObserver from plugin Symbolic Interpretation for "HiddenEquality-Safe.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.08 11:48:43" (1/1) ... [2019-08-05 11:48:43,775 INFO L148 IcfgInterpreter]: Started Sifa with 1 locations of interest [2019-08-05 11:48:43,778 INFO L155 IcfgInterpreter]: Building call graph [2019-08-05 11:48:43,793 INFO L160 IcfgInterpreter]: Initial procedures are [main] [2019-08-05 11:48:43,803 INFO L165 IcfgInterpreter]: Starting interpretation [2019-08-05 11:48:43,804 INFO L184 IcfgInterpreter]: Interpreting procedure main with input of size 1 [2019-08-05 11:48:44,044 WARN L188 SmtUtils]: Spent 154.00 ms on a formula simplification that was a NOOP. DAG size: 11 [2019-08-05 11:48:44,237 INFO L169 IcfgInterpreter]: Interpretation finished [2019-08-05 11:48:44,237 INFO L176 IcfgInterpreter]: Final predicates for locations of interest are: [2019-08-05 11:48:44,240 INFO L178 IcfgInterpreter]: Location mainErr0ASSERT_VIOLATIONASSERT has predicate 22#(and (not (= main_y 100)) (= main_x 100)) [2019-08-05 11:48:44,247 INFO L132 PluginConnector]: ------------------------ END Symbolic Interpretation---------------------------- [2019-08-05 11:48:44,249 INFO L168 Benchmark]: Toolchain (without parser) took 819.04 ms. Allocated memory is still 140.5 MB. Free memory was 108.7 MB in the beginning and 84.1 MB in the end (delta: 24.6 MB). Peak memory consumption was 24.6 MB. Max. memory is 7.1 GB. [2019-08-05 11:48:44,250 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.15 ms. Allocated memory is still 140.5 MB. Free memory is still 109.6 MB. There was no memory consumed. Max. memory is 7.1 GB. [2019-08-05 11:48:44,251 INFO L168 Benchmark]: Boogie Preprocessor took 42.52 ms. Allocated memory is still 140.5 MB. Free memory was 108.7 MB in the beginning and 106.6 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 7.1 GB. [2019-08-05 11:48:44,253 INFO L168 Benchmark]: RCFGBuilder took 286.92 ms. Allocated memory is still 140.5 MB. Free memory was 106.6 MB in the beginning and 97.7 MB in the end (delta: 8.9 MB). Peak memory consumption was 8.9 MB. Max. memory is 7.1 GB. [2019-08-05 11:48:44,254 INFO L168 Benchmark]: Symbolic Interpretation took 486.76 ms. Allocated memory is still 140.5 MB. Free memory was 97.7 MB in the beginning and 84.1 MB in the end (delta: 13.5 MB). Peak memory consumption was 13.5 MB. Max. memory is 7.1 GB. [2019-08-05 11:48:44,257 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.symbolicinterpretation: - UnprovableResult [Line: 29]: 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 0.15 ms. Allocated memory is still 140.5 MB. Free memory is still 109.6 MB. There was no memory consumed. Max. memory is 7.1 GB. * Boogie Preprocessor took 42.52 ms. Allocated memory is still 140.5 MB. Free memory was 108.7 MB in the beginning and 106.6 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 7.1 GB. * RCFGBuilder took 286.92 ms. Allocated memory is still 140.5 MB. Free memory was 106.6 MB in the beginning and 97.7 MB in the end (delta: 8.9 MB). Peak memory consumption was 8.9 MB. Max. memory is 7.1 GB. * Symbolic Interpretation took 486.76 ms. Allocated memory is still 140.5 MB. Free memory was 97.7 MB in the beginning and 84.1 MB in the end (delta: 13.5 MB). Peak memory consumption was 13.5 MB. Max. memory is 7.1 GB. RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request...