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/doubleLoopUniformIterations.bpl -------------------------------------------------------------------------------- This is Ultimate 0.1.24-3b9210c [2019-08-06 16:54:33,595 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-08-06 16:54:33,598 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-08-06 16:54:33,609 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-08-06 16:54:33,609 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-08-06 16:54:33,610 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-08-06 16:54:33,611 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-08-06 16:54:33,613 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-08-06 16:54:33,615 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-08-06 16:54:33,616 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-08-06 16:54:33,616 INFO L181 SettingsManager]: Resetting Symbolic Interpretation preferences to default values [2019-08-06 16:54:33,618 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-08-06 16:54:33,618 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-08-06 16:54:33,619 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-08-06 16:54:33,620 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-08-06 16:54:33,621 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-08-06 16:54:33,622 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-08-06 16:54:33,623 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-08-06 16:54:33,625 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-08-06 16:54:33,627 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-08-06 16:54:33,628 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-08-06 16:54:33,629 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-08-06 16:54:33,631 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-08-06 16:54:33,631 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-08-06 16:54:33,634 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-08-06 16:54:33,634 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-08-06 16:54:33,634 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-08-06 16:54:33,635 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-08-06 16:54:33,635 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-08-06 16:54:33,636 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-08-06 16:54:33,637 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-08-06 16:54:33,637 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-08-06 16:54:33,638 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-08-06 16:54:33,639 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-08-06 16:54:33,640 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-08-06 16:54:33,640 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-08-06 16:54:33,641 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-08-06 16:54:33,641 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-08-06 16:54:33,641 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-08-06 16:54:33,642 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-08-06 16:54:33,643 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-08-06 16:54:33,670 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-08-06 16:54:33,681 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-08-06 16:54:33,685 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-08-06 16:54:33,686 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2019-08-06 16:54:33,687 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2019-08-06 16:54:33,687 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/toy/tooDifficultLoopInvariant/doubleLoopUniformIterations.bpl [2019-08-06 16:54:33,688 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/toy/tooDifficultLoopInvariant/doubleLoopUniformIterations.bpl' [2019-08-06 16:54:33,717 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-08-06 16:54:33,719 INFO L131 ToolchainWalker]: Walking toolchain with 3 elements. [2019-08-06 16:54:33,719 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-08-06 16:54:33,720 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-08-06 16:54:33,720 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-08-06 16:54:33,742 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "doubleLoopUniformIterations.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 06.08 04:54:33" (1/1) ... [2019-08-06 16:54:33,743 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "doubleLoopUniformIterations.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 06.08 04:54:33" (1/1) ... [2019-08-06 16:54:33,750 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "doubleLoopUniformIterations.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 06.08 04:54:33" (1/1) ... [2019-08-06 16:54:33,751 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "doubleLoopUniformIterations.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 06.08 04:54:33" (1/1) ... [2019-08-06 16:54:33,753 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "doubleLoopUniformIterations.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 06.08 04:54:33" (1/1) ... [2019-08-06 16:54:33,757 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "doubleLoopUniformIterations.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 06.08 04:54:33" (1/1) ... [2019-08-06 16:54:33,758 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "doubleLoopUniformIterations.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 06.08 04:54:33" (1/1) ... [2019-08-06 16:54:33,759 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-08-06 16:54:33,760 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-08-06 16:54:33,760 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-08-06 16:54:33,760 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-08-06 16:54:33,761 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "doubleLoopUniformIterations.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 06.08 04:54:33" (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 16:54:33,835 INFO L130 BoogieDeclarations]: Found specification of procedure Main [2019-08-06 16:54:33,836 INFO L138 BoogieDeclarations]: Found implementation of procedure Main [2019-08-06 16:54:34,161 INFO L275 CfgBuilder]: Using library mode [2019-08-06 16:54:34,161 INFO L283 CfgBuilder]: Removed 1 assume(true) statements. [2019-08-06 16:54:34,164 INFO L202 PluginConnector]: Adding new model doubleLoopUniformIterations.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.08 04:54:34 BoogieIcfgContainer [2019-08-06 16:54:34,164 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-08-06 16:54:34,165 INFO L113 PluginConnector]: ------------------------Symbolic Interpretation---------------------------- [2019-08-06 16:54:34,165 INFO L271 PluginConnector]: Initializing Symbolic Interpretation... [2019-08-06 16:54:34,165 INFO L275 PluginConnector]: Symbolic Interpretation initialized [2019-08-06 16:54:34,166 INFO L185 PluginConnector]: Executing the observer SymbolicInterpretationObserver from plugin Symbolic Interpretation for "doubleLoopUniformIterations.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.08 04:54:34" (1/1) ... [2019-08-06 16:54:34,179 INFO L148 IcfgInterpreter]: Started Sifa with 2 locations of interest [2019-08-06 16:54:34,184 INFO L155 IcfgInterpreter]: Building call graph [2019-08-06 16:54:34,196 INFO L160 IcfgInterpreter]: Initial procedures are [Main] [2019-08-06 16:54:34,206 INFO L165 IcfgInterpreter]: Starting interpretation [2019-08-06 16:54:34,207 INFO L185 IcfgInterpreter]: Interpreting procedure Main with input of size 1 [2019-08-06 16:54:34,321 INFO L169 IcfgInterpreter]: Interpretation finished [2019-08-06 16:54:34,321 INFO L177 IcfgInterpreter]: Final predicates for locations of interest are: [2019-08-06 16:54:34,324 INFO L179 IcfgInterpreter]: Location MainErr0ASSERT_VIOLATIONASSERT has predicate 32#false [2019-08-06 16:54:34,325 INFO L179 IcfgInterpreter]: Location MainErr1ASSERT_VIOLATIONASSERT has predicate 29#(and (= Main_x 0) (not (= 0 (+ Main_x 1))) (not (= Main_y 0))) [2019-08-06 16:54:34,326 WARN L88 terpretationObserver]: Some locations of interest might be reachable, see reported results. [2019-08-06 16:54:34,333 INFO L132 PluginConnector]: ------------------------ END Symbolic Interpretation---------------------------- [2019-08-06 16:54:34,336 INFO L168 Benchmark]: Toolchain (without parser) took 615.76 ms. Allocated memory is still 139.5 MB. Free memory was 107.8 MB in the beginning and 90.9 MB in the end (delta: 16.9 MB). Peak memory consumption was 16.9 MB. Max. memory is 7.1 GB. [2019-08-06 16:54:34,337 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.20 ms. Allocated memory is still 139.5 MB. Free memory was 109.0 MB in the beginning and 108.8 MB in the end (delta: 209.9 kB). Peak memory consumption was 209.9 kB. Max. memory is 7.1 GB. [2019-08-06 16:54:34,339 INFO L168 Benchmark]: Boogie Preprocessor took 39.81 ms. Allocated memory is still 139.5 MB. Free memory was 107.8 MB in the beginning and 105.6 MB in the end (delta: 2.2 MB). Peak memory consumption was 2.2 MB. Max. memory is 7.1 GB. [2019-08-06 16:54:34,340 INFO L168 Benchmark]: RCFGBuilder took 404.28 ms. Allocated memory is still 139.5 MB. Free memory was 105.6 MB in the beginning and 96.4 MB in the end (delta: 9.2 MB). Peak memory consumption was 9.2 MB. Max. memory is 7.1 GB. [2019-08-06 16:54:34,341 INFO L168 Benchmark]: Symbolic Interpretation took 168.43 ms. Allocated memory is still 139.5 MB. Free memory was 96.4 MB in the beginning and 90.9 MB in the end (delta: 5.5 MB). Peak memory consumption was 5.5 MB. Max. memory is 7.1 GB. [2019-08-06 16:54:34,345 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.symbolicinterpretation: - PositiveResult [Line: 23]: assertion always holds For all program executions holds that assertion always holds at this location - UnprovableResult [Line: 24]: 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 0.20 ms. Allocated memory is still 139.5 MB. Free memory was 109.0 MB in the beginning and 108.8 MB in the end (delta: 209.9 kB). Peak memory consumption was 209.9 kB. Max. memory is 7.1 GB. * Boogie Preprocessor took 39.81 ms. Allocated memory is still 139.5 MB. Free memory was 107.8 MB in the beginning and 105.6 MB in the end (delta: 2.2 MB). Peak memory consumption was 2.2 MB. Max. memory is 7.1 GB. * RCFGBuilder took 404.28 ms. Allocated memory is still 139.5 MB. Free memory was 105.6 MB in the beginning and 96.4 MB in the end (delta: 9.2 MB). Peak memory consumption was 9.2 MB. Max. memory is 7.1 GB. * Symbolic Interpretation took 168.43 ms. Allocated memory is still 139.5 MB. Free memory was 96.4 MB in the beginning and 90.9 MB in the end (delta: 5.5 MB). Peak memory consumption was 5.5 MB. Max. memory is 7.1 GB. RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request...