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/unrolling-tests/ReachDef-NestedLoop.bpl -------------------------------------------------------------------------------- This is Ultimate 0.1.24-3b9210c [2019-08-06 16:46:52,576 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-08-06 16:46:52,579 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-08-06 16:46:52,590 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-08-06 16:46:52,591 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-08-06 16:46:52,592 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-08-06 16:46:52,593 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-08-06 16:46:52,601 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-08-06 16:46:52,607 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-08-06 16:46:52,608 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-08-06 16:46:52,609 INFO L181 SettingsManager]: Resetting Symbolic Interpretation preferences to default values [2019-08-06 16:46:52,610 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-08-06 16:46:52,610 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-08-06 16:46:52,611 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-08-06 16:46:52,612 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-08-06 16:46:52,613 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-08-06 16:46:52,615 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-08-06 16:46:52,616 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-08-06 16:46:52,620 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-08-06 16:46:52,625 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-08-06 16:46:52,626 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-08-06 16:46:52,627 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-08-06 16:46:52,629 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-08-06 16:46:52,629 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-08-06 16:46:52,631 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-08-06 16:46:52,632 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-08-06 16:46:52,632 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-08-06 16:46:52,633 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-08-06 16:46:52,633 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-08-06 16:46:52,634 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-08-06 16:46:52,635 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-08-06 16:46:52,635 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-08-06 16:46:52,636 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-08-06 16:46:52,637 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-08-06 16:46:52,638 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-08-06 16:46:52,638 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-08-06 16:46:52,639 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-08-06 16:46:52,639 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-08-06 16:46:52,639 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-08-06 16:46:52,640 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-08-06 16:46:52,641 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-08-06 16:46:52,669 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-08-06 16:46:52,684 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-08-06 16:46:52,689 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-08-06 16:46:52,691 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2019-08-06 16:46:52,691 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2019-08-06 16:46:52,693 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/unrolling-tests/ReachDef-NestedLoop.bpl [2019-08-06 16:46:52,693 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/unrolling-tests/ReachDef-NestedLoop.bpl' [2019-08-06 16:46:52,731 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-08-06 16:46:52,733 INFO L131 ToolchainWalker]: Walking toolchain with 3 elements. [2019-08-06 16:46:52,734 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-08-06 16:46:52,734 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-08-06 16:46:52,734 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-08-06 16:46:52,756 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "ReachDef-NestedLoop.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 06.08 04:46:52" (1/1) ... [2019-08-06 16:46:52,757 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "ReachDef-NestedLoop.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 06.08 04:46:52" (1/1) ... [2019-08-06 16:46:52,763 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "ReachDef-NestedLoop.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 06.08 04:46:52" (1/1) ... [2019-08-06 16:46:52,764 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "ReachDef-NestedLoop.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 06.08 04:46:52" (1/1) ... [2019-08-06 16:46:52,766 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "ReachDef-NestedLoop.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 06.08 04:46:52" (1/1) ... [2019-08-06 16:46:52,770 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "ReachDef-NestedLoop.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 06.08 04:46:52" (1/1) ... [2019-08-06 16:46:52,771 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "ReachDef-NestedLoop.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 06.08 04:46:52" (1/1) ... [2019-08-06 16:46:52,772 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-08-06 16:46:52,773 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-08-06 16:46:52,773 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-08-06 16:46:52,773 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-08-06 16:46:52,774 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "ReachDef-NestedLoop.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 06.08 04:46:52" (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 16:46:52,851 INFO L130 BoogieDeclarations]: Found specification of procedure Main [2019-08-06 16:46:52,851 INFO L138 BoogieDeclarations]: Found implementation of procedure Main [2019-08-06 16:46:52,851 INFO L130 BoogieDeclarations]: Found specification of procedure ~init [2019-08-06 16:46:52,852 INFO L138 BoogieDeclarations]: Found implementation of procedure ~init [2019-08-06 16:46:53,134 INFO L275 CfgBuilder]: Using library mode [2019-08-06 16:46:53,134 INFO L283 CfgBuilder]: Removed 2 assume(true) statements. [2019-08-06 16:46:53,136 INFO L202 PluginConnector]: Adding new model ReachDef-NestedLoop.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.08 04:46:53 BoogieIcfgContainer [2019-08-06 16:46:53,136 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-08-06 16:46:53,136 INFO L113 PluginConnector]: ------------------------Symbolic Interpretation---------------------------- [2019-08-06 16:46:53,136 INFO L271 PluginConnector]: Initializing Symbolic Interpretation... [2019-08-06 16:46:53,137 INFO L275 PluginConnector]: Symbolic Interpretation initialized [2019-08-06 16:46:53,138 INFO L185 PluginConnector]: Executing the observer SymbolicInterpretationObserver from plugin Symbolic Interpretation for "ReachDef-NestedLoop.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.08 04:46:53" (1/1) ... [2019-08-06 16:46:53,148 INFO L148 IcfgInterpreter]: Started Sifa with 1 locations of interest [2019-08-06 16:46:53,151 INFO L155 IcfgInterpreter]: Building call graph [2019-08-06 16:46:53,162 INFO L160 IcfgInterpreter]: Initial procedures are [Main] [2019-08-06 16:46:53,170 INFO L165 IcfgInterpreter]: Starting interpretation [2019-08-06 16:46:53,171 INFO L185 IcfgInterpreter]: Interpreting procedure Main with input of size 1 [2019-08-06 16:46:53,287 INFO L169 IcfgInterpreter]: Interpretation finished [2019-08-06 16:46:53,287 INFO L177 IcfgInterpreter]: Final predicates for locations of interest are: [2019-08-06 16:46:53,290 INFO L179 IcfgInterpreter]: Location MainErr0ASSERT_VIOLATIONASSERT has predicate 44#(and (= Main_z 2) (not (= Main_z (+ (* (- 1) Main_y) Main_x)))) [2019-08-06 16:46:53,291 WARN L88 terpretationObserver]: Some locations of interest might be reachable, see reported results. [2019-08-06 16:46:53,299 INFO L132 PluginConnector]: ------------------------ END Symbolic Interpretation---------------------------- [2019-08-06 16:46:53,302 INFO L168 Benchmark]: Toolchain (without parser) took 567.64 ms. Allocated memory is still 132.6 MB. Free memory was 107.9 MB in the beginning and 90.1 MB in the end (delta: 17.8 MB). Peak memory consumption was 17.8 MB. Max. memory is 7.1 GB. [2019-08-06 16:46:53,304 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.30 ms. Allocated memory is still 132.6 MB. Free memory was 109.0 MB in the beginning and 108.8 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. [2019-08-06 16:46:53,305 INFO L168 Benchmark]: Boogie Preprocessor took 38.92 ms. Allocated memory is still 132.6 MB. Free memory was 107.7 MB in the beginning and 105.7 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. [2019-08-06 16:46:53,306 INFO L168 Benchmark]: RCFGBuilder took 362.81 ms. Allocated memory is still 132.6 MB. Free memory was 105.5 MB in the beginning and 96.2 MB in the end (delta: 9.3 MB). Peak memory consumption was 9.3 MB. Max. memory is 7.1 GB. [2019-08-06 16:46:53,308 INFO L168 Benchmark]: Symbolic Interpretation took 162.63 ms. Allocated memory is still 132.6 MB. Free memory was 96.2 MB in the beginning and 90.3 MB in the end (delta: 5.9 MB). Peak memory consumption was 5.9 MB. Max. memory is 7.1 GB. [2019-08-06 16:46:53,314 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.symbolicinterpretation: - UnprovableResult [Line: 23]: 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 0.30 ms. Allocated memory is still 132.6 MB. Free memory was 109.0 MB in the beginning and 108.8 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. * Boogie Preprocessor took 38.92 ms. Allocated memory is still 132.6 MB. Free memory was 107.7 MB in the beginning and 105.7 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. * RCFGBuilder took 362.81 ms. Allocated memory is still 132.6 MB. Free memory was 105.5 MB in the beginning and 96.2 MB in the end (delta: 9.3 MB). Peak memory consumption was 9.3 MB. Max. memory is 7.1 GB. * Symbolic Interpretation took 162.63 ms. Allocated memory is still 132.6 MB. Free memory was 96.2 MB in the beginning and 90.3 MB in the end (delta: 5.9 MB). Peak memory consumption was 5.9 MB. Max. memory is 7.1 GB. RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request...