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-b03553c [2019-08-05 18:12:19,065 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-08-05 18:12:19,067 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-08-05 18:12:19,083 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-08-05 18:12:19,083 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-08-05 18:12:19,085 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-08-05 18:12:19,087 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-08-05 18:12:19,090 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-08-05 18:12:19,093 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-08-05 18:12:19,094 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-08-05 18:12:19,095 INFO L181 SettingsManager]: Resetting Symbolic Interpretation preferences to default values [2019-08-05 18:12:19,096 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-08-05 18:12:19,097 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-08-05 18:12:19,100 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-08-05 18:12:19,102 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-08-05 18:12:19,110 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-08-05 18:12:19,111 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-08-05 18:12:19,111 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-08-05 18:12:19,113 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-08-05 18:12:19,117 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-08-05 18:12:19,119 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-08-05 18:12:19,120 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-08-05 18:12:19,121 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-08-05 18:12:19,124 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-08-05 18:12:19,126 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-08-05 18:12:19,126 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-08-05 18:12:19,126 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-08-05 18:12:19,127 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-08-05 18:12:19,127 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-08-05 18:12:19,128 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-08-05 18:12:19,130 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-08-05 18:12:19,131 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-08-05 18:12:19,132 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-08-05 18:12:19,133 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-08-05 18:12:19,135 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-08-05 18:12:19,135 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-08-05 18:12:19,136 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-08-05 18:12:19,136 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-08-05 18:12:19,136 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-08-05 18:12:19,137 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-08-05 18:12:19,138 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-08-05 18:12:19,189 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-08-05 18:12:19,208 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-08-05 18:12:19,211 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-08-05 18:12:19,213 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2019-08-05 18:12:19,214 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2019-08-05 18:12:19,215 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/toy/tooDifficultLoopInvariant/doubleLoopUniformIterations.bpl [2019-08-05 18:12:19,215 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/toy/tooDifficultLoopInvariant/doubleLoopUniformIterations.bpl' [2019-08-05 18:12:19,246 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-08-05 18:12:19,247 INFO L131 ToolchainWalker]: Walking toolchain with 3 elements. [2019-08-05 18:12:19,248 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-08-05 18:12:19,248 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-08-05 18:12:19,248 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-08-05 18:12:19,271 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "doubleLoopUniformIterations.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 06:12:19" (1/1) ... [2019-08-05 18:12:19,273 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "doubleLoopUniformIterations.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 06:12:19" (1/1) ... [2019-08-05 18:12:19,280 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "doubleLoopUniformIterations.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 06:12:19" (1/1) ... [2019-08-05 18:12:19,281 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "doubleLoopUniformIterations.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 06:12:19" (1/1) ... [2019-08-05 18:12:19,283 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "doubleLoopUniformIterations.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 06:12:19" (1/1) ... [2019-08-05 18:12:19,288 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "doubleLoopUniformIterations.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 06:12:19" (1/1) ... [2019-08-05 18:12:19,288 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "doubleLoopUniformIterations.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 06:12:19" (1/1) ... [2019-08-05 18:12:19,289 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-08-05 18:12:19,290 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-08-05 18:12:19,290 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-08-05 18:12:19,291 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-08-05 18:12:19,292 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "doubleLoopUniformIterations.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 06:12:19" (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 18:12:19,359 INFO L130 BoogieDeclarations]: Found specification of procedure Main [2019-08-05 18:12:19,359 INFO L138 BoogieDeclarations]: Found implementation of procedure Main [2019-08-05 18:12:19,549 INFO L275 CfgBuilder]: Using library mode [2019-08-05 18:12:19,549 INFO L283 CfgBuilder]: Removed 1 assume(true) statements. [2019-08-05 18:12:19,550 INFO L202 PluginConnector]: Adding new model doubleLoopUniformIterations.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.08 06:12:19 BoogieIcfgContainer [2019-08-05 18:12:19,551 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-08-05 18:12:19,551 INFO L113 PluginConnector]: ------------------------Symbolic Interpretation---------------------------- [2019-08-05 18:12:19,551 INFO L271 PluginConnector]: Initializing Symbolic Interpretation... [2019-08-05 18:12:19,551 INFO L275 PluginConnector]: Symbolic Interpretation initialized [2019-08-05 18:12:19,553 INFO L185 PluginConnector]: Executing the observer SymbolicInterpretationObserver from plugin Symbolic Interpretation for "doubleLoopUniformIterations.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.08 06:12:19" (1/1) ... [2019-08-05 18:12:19,565 INFO L148 IcfgInterpreter]: Started Sifa with 2 locations of interest [2019-08-05 18:12:19,569 INFO L155 IcfgInterpreter]: Building call graph [2019-08-05 18:12:19,581 INFO L160 IcfgInterpreter]: Initial procedures are [Main] [2019-08-05 18:12:19,592 INFO L165 IcfgInterpreter]: Starting interpretation [2019-08-05 18:12:19,594 INFO L185 IcfgInterpreter]: Interpreting procedure Main with input of size 1 [2019-08-05 18:12:19,702 INFO L169 IcfgInterpreter]: Interpretation finished [2019-08-05 18:12:19,703 INFO L177 IcfgInterpreter]: Final predicates for locations of interest are: [2019-08-05 18:12:19,708 INFO L179 IcfgInterpreter]: Location MainErr1ASSERT_VIOLATIONASSERT has predicate 29#(and (= Main_x 0) (not (= 0 (+ Main_x 1))) (not (= Main_y 0))) [2019-08-05 18:12:19,709 INFO L179 IcfgInterpreter]: Location MainErr0ASSERT_VIOLATIONASSERT has predicate 32#false [2019-08-05 18:12:19,710 WARN L88 terpretationObserver]: Some locations of interest might be reachable, see reported results. [2019-08-05 18:12:19,719 INFO L132 PluginConnector]: ------------------------ END Symbolic Interpretation---------------------------- [2019-08-05 18:12:19,722 INFO L168 Benchmark]: Toolchain (without parser) took 473.52 ms. Allocated memory is still 138.9 MB. Free memory was 106.1 MB in the beginning and 88.9 MB in the end (delta: 17.2 MB). Peak memory consumption was 17.2 MB. Max. memory is 7.1 GB. [2019-08-05 18:12:19,723 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.22 ms. Allocated memory is still 138.9 MB. Free memory is still 107.0 MB. There was no memory consumed. Max. memory is 7.1 GB. [2019-08-05 18:12:19,724 INFO L168 Benchmark]: Boogie Preprocessor took 42.27 ms. Allocated memory is still 138.9 MB. Free memory was 106.1 MB in the beginning and 103.9 MB in the end (delta: 2.2 MB). Peak memory consumption was 2.2 MB. Max. memory is 7.1 GB. [2019-08-05 18:12:19,726 INFO L168 Benchmark]: RCFGBuilder took 260.43 ms. Allocated memory is still 138.9 MB. Free memory was 103.9 MB in the beginning and 94.4 MB in the end (delta: 9.5 MB). Peak memory consumption was 9.5 MB. Max. memory is 7.1 GB. [2019-08-05 18:12:19,727 INFO L168 Benchmark]: Symbolic Interpretation took 167.98 ms. Allocated memory is still 138.9 MB. Free memory was 94.4 MB in the beginning and 89.3 MB in the end (delta: 5.1 MB). Peak memory consumption was 5.1 MB. Max. memory is 7.1 GB. [2019-08-05 18:12:19,731 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.symbolicinterpretation: - 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: - PositiveResult [Line: 23]: assertion always holds For all program executions holds that assertion always holds at this location * 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 is still 107.0 MB. There was no memory consumed. Max. memory is 7.1 GB. * Boogie Preprocessor took 42.27 ms. Allocated memory is still 138.9 MB. Free memory was 106.1 MB in the beginning and 103.9 MB in the end (delta: 2.2 MB). Peak memory consumption was 2.2 MB. Max. memory is 7.1 GB. * RCFGBuilder took 260.43 ms. Allocated memory is still 138.9 MB. Free memory was 103.9 MB in the beginning and 94.4 MB in the end (delta: 9.5 MB). Peak memory consumption was 9.5 MB. Max. memory is 7.1 GB. * Symbolic Interpretation took 167.98 ms. Allocated memory is still 138.9 MB. Free memory was 94.4 MB in the beginning and 89.3 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...