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 0.1.24-3b9210c [2019-08-06 16:54:32,494 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-08-06 16:54:32,496 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-08-06 16:54:32,508 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-08-06 16:54:32,508 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-08-06 16:54:32,509 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-08-06 16:54:32,511 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-08-06 16:54:32,513 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-08-06 16:54:32,514 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-08-06 16:54:32,517 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-08-06 16:54:32,518 INFO L181 SettingsManager]: Resetting Symbolic Interpretation preferences to default values [2019-08-06 16:54:32,519 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-08-06 16:54:32,523 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-08-06 16:54:32,525 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-08-06 16:54:32,529 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-08-06 16:54:32,530 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-08-06 16:54:32,533 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-08-06 16:54:32,535 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-08-06 16:54:32,539 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-08-06 16:54:32,545 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-08-06 16:54:32,546 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-08-06 16:54:32,551 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-08-06 16:54:32,554 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-08-06 16:54:32,554 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-08-06 16:54:32,556 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-08-06 16:54:32,557 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-08-06 16:54:32,557 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-08-06 16:54:32,559 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-08-06 16:54:32,560 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-08-06 16:54:32,561 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-08-06 16:54:32,561 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-08-06 16:54:32,564 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-08-06 16:54:32,565 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-08-06 16:54:32,566 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-08-06 16:54:32,567 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-08-06 16:54:32,567 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-08-06 16:54:32,570 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-08-06 16:54:32,571 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-08-06 16:54:32,571 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-08-06 16:54:32,572 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-08-06 16:54:32,572 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-08-06 16:54:32,615 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-08-06 16:54:32,630 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-08-06 16:54:32,633 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-08-06 16:54:32,635 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2019-08-06 16:54:32,636 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2019-08-06 16:54:32,638 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/toy/tooDifficultLoopInvariant/HiddenEquality-Safe.bpl [2019-08-06 16:54:32,639 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/toy/tooDifficultLoopInvariant/HiddenEquality-Safe.bpl' [2019-08-06 16:54:32,669 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-08-06 16:54:32,670 INFO L131 ToolchainWalker]: Walking toolchain with 3 elements. [2019-08-06 16:54:32,671 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-08-06 16:54:32,671 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-08-06 16:54:32,671 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-08-06 16:54:32,700 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "HiddenEquality-Safe.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 06.08 04:54:32" (1/1) ... [2019-08-06 16:54:32,702 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "HiddenEquality-Safe.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 06.08 04:54:32" (1/1) ... [2019-08-06 16:54:32,710 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "HiddenEquality-Safe.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 06.08 04:54:32" (1/1) ... [2019-08-06 16:54:32,711 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "HiddenEquality-Safe.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 06.08 04:54:32" (1/1) ... [2019-08-06 16:54:32,713 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "HiddenEquality-Safe.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 06.08 04:54:32" (1/1) ... [2019-08-06 16:54:32,718 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "HiddenEquality-Safe.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 06.08 04:54:32" (1/1) ... [2019-08-06 16:54:32,719 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "HiddenEquality-Safe.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 06.08 04:54:32" (1/1) ... [2019-08-06 16:54:32,720 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-08-06 16:54:32,721 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-08-06 16:54:32,721 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-08-06 16:54:32,721 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-08-06 16:54:32,722 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "HiddenEquality-Safe.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 06.08 04:54:32" (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 16:54:32,786 INFO L124 BoogieDeclarations]: Specification and implementation of procedure main given in one single declaration [2019-08-06 16:54:32,786 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-08-06 16:54:32,786 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-08-06 16:54:33,010 INFO L275 CfgBuilder]: Using library mode [2019-08-06 16:54:33,010 INFO L283 CfgBuilder]: Removed 1 assume(true) statements. [2019-08-06 16:54:33,011 INFO L202 PluginConnector]: Adding new model HiddenEquality-Safe.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.08 04:54:33 BoogieIcfgContainer [2019-08-06 16:54:33,011 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-08-06 16:54:33,012 INFO L113 PluginConnector]: ------------------------Symbolic Interpretation---------------------------- [2019-08-06 16:54:33,012 INFO L271 PluginConnector]: Initializing Symbolic Interpretation... [2019-08-06 16:54:33,012 INFO L275 PluginConnector]: Symbolic Interpretation initialized [2019-08-06 16:54:33,013 INFO L185 PluginConnector]: Executing the observer SymbolicInterpretationObserver from plugin Symbolic Interpretation for "HiddenEquality-Safe.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.08 04:54:33" (1/1) ... [2019-08-06 16:54:33,022 INFO L148 IcfgInterpreter]: Started Sifa with 1 locations of interest [2019-08-06 16:54:33,025 INFO L155 IcfgInterpreter]: Building call graph [2019-08-06 16:54:33,031 INFO L160 IcfgInterpreter]: Initial procedures are [main] [2019-08-06 16:54:33,039 INFO L165 IcfgInterpreter]: Starting interpretation [2019-08-06 16:54:33,040 INFO L185 IcfgInterpreter]: Interpreting procedure main with input of size 1 [2019-08-06 16:54:33,131 INFO L169 IcfgInterpreter]: Interpretation finished [2019-08-06 16:54:33,131 INFO L177 IcfgInterpreter]: Final predicates for locations of interest are: [2019-08-06 16:54:33,134 INFO L179 IcfgInterpreter]: Location mainErr0ASSERT_VIOLATIONASSERT has predicate 23#(and (not (= main_y 100)) (= main_x 100)) [2019-08-06 16:54:33,135 WARN L88 terpretationObserver]: Some locations of interest might be reachable, see reported results. [2019-08-06 16:54:33,142 INFO L132 PluginConnector]: ------------------------ END Symbolic Interpretation---------------------------- [2019-08-06 16:54:33,146 INFO L168 Benchmark]: Toolchain (without parser) took 473.72 ms. Allocated memory is still 140.0 MB. Free memory was 108.6 MB in the beginning and 92.1 MB in the end (delta: 16.4 MB). Peak memory consumption was 16.4 MB. Max. memory is 7.1 GB. [2019-08-06 16:54:33,148 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.32 ms. Allocated memory is still 140.0 MB. Free memory was 109.6 MB in the beginning and 109.4 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. [2019-08-06 16:54:33,149 INFO L168 Benchmark]: Boogie Preprocessor took 49.26 ms. Allocated memory is still 140.0 MB. Free memory was 108.3 MB in the beginning and 106.2 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 7.1 GB. [2019-08-06 16:54:33,150 INFO L168 Benchmark]: RCFGBuilder took 290.74 ms. Allocated memory is still 140.0 MB. Free memory was 106.2 MB in the beginning and 97.3 MB in the end (delta: 9.0 MB). Peak memory consumption was 9.0 MB. Max. memory is 7.1 GB. [2019-08-06 16:54:33,153 INFO L168 Benchmark]: Symbolic Interpretation took 131.15 ms. Allocated memory is still 140.0 MB. Free memory was 97.3 MB in the beginning and 92.1 MB in the end (delta: 5.1 MB). Peak memory consumption was 5.1 MB. Max. memory is 7.1 GB. [2019-08-06 16:54:33,159 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 0.32 ms. Allocated memory is still 140.0 MB. Free memory was 109.6 MB in the beginning and 109.4 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. * Boogie Preprocessor took 49.26 ms. Allocated memory is still 140.0 MB. Free memory was 108.3 MB in the beginning and 106.2 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 7.1 GB. * RCFGBuilder took 290.74 ms. Allocated memory is still 140.0 MB. Free memory was 106.2 MB in the beginning and 97.3 MB in the end (delta: 9.0 MB). Peak memory consumption was 9.0 MB. Max. memory is 7.1 GB. * Symbolic Interpretation took 131.15 ms. Allocated memory is still 140.0 MB. Free memory was 97.3 MB in the beginning and 92.1 MB in the end (delta: 5.1 MB). Peak memory consumption was 5.1 MB. Max. memory is 7.1 GB. RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request...