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/regression/bpl/interprocedural/BugBackwardPredicates06.bpl -------------------------------------------------------------------------------- This is Ultimate 0.1.24-3b9210c [2019-08-06 16:58:25,183 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-08-06 16:58:25,185 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-08-06 16:58:25,198 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-08-06 16:58:25,198 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-08-06 16:58:25,204 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-08-06 16:58:25,206 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-08-06 16:58:25,208 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-08-06 16:58:25,210 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-08-06 16:58:25,211 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-08-06 16:58:25,212 INFO L181 SettingsManager]: Resetting Symbolic Interpretation preferences to default values [2019-08-06 16:58:25,213 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-08-06 16:58:25,214 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-08-06 16:58:25,215 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-08-06 16:58:25,216 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-08-06 16:58:25,217 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-08-06 16:58:25,218 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-08-06 16:58:25,219 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-08-06 16:58:25,221 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-08-06 16:58:25,223 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-08-06 16:58:25,225 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-08-06 16:58:25,226 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-08-06 16:58:25,227 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-08-06 16:58:25,228 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-08-06 16:58:25,231 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-08-06 16:58:25,232 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-08-06 16:58:25,232 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-08-06 16:58:25,233 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-08-06 16:58:25,234 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-08-06 16:58:25,235 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-08-06 16:58:25,235 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-08-06 16:58:25,236 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-08-06 16:58:25,237 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-08-06 16:58:25,238 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-08-06 16:58:25,239 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-08-06 16:58:25,239 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-08-06 16:58:25,240 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-08-06 16:58:25,240 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-08-06 16:58:25,241 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-08-06 16:58:25,242 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-08-06 16:58:25,242 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-08-06 16:58:25,274 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-08-06 16:58:25,287 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-08-06 16:58:25,290 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-08-06 16:58:25,292 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2019-08-06 16:58:25,293 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2019-08-06 16:58:25,293 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/regression/bpl/interprocedural/BugBackwardPredicates06.bpl [2019-08-06 16:58:25,294 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/regression/bpl/interprocedural/BugBackwardPredicates06.bpl' [2019-08-06 16:58:25,328 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-08-06 16:58:25,330 INFO L131 ToolchainWalker]: Walking toolchain with 3 elements. [2019-08-06 16:58:25,331 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-08-06 16:58:25,331 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-08-06 16:58:25,331 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-08-06 16:58:25,357 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "BugBackwardPredicates06.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 06.08 04:58:25" (1/1) ... [2019-08-06 16:58:25,359 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "BugBackwardPredicates06.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 06.08 04:58:25" (1/1) ... [2019-08-06 16:58:25,367 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "BugBackwardPredicates06.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 06.08 04:58:25" (1/1) ... [2019-08-06 16:58:25,367 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "BugBackwardPredicates06.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 06.08 04:58:25" (1/1) ... [2019-08-06 16:58:25,370 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "BugBackwardPredicates06.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 06.08 04:58:25" (1/1) ... [2019-08-06 16:58:25,373 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "BugBackwardPredicates06.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 06.08 04:58:25" (1/1) ... [2019-08-06 16:58:25,373 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "BugBackwardPredicates06.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 06.08 04:58:25" (1/1) ... [2019-08-06 16:58:25,375 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-08-06 16:58:25,376 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-08-06 16:58:25,376 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-08-06 16:58:25,376 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-08-06 16:58:25,377 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "BugBackwardPredicates06.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 06.08 04:58:25" (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 16:58:25,452 INFO L124 BoogieDeclarations]: Specification and implementation of procedure main given in one single declaration [2019-08-06 16:58:25,452 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-08-06 16:58:25,453 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-08-06 16:58:25,453 INFO L124 BoogieDeclarations]: Specification and implementation of procedure alwaysTrue given in one single declaration [2019-08-06 16:58:25,453 INFO L130 BoogieDeclarations]: Found specification of procedure alwaysTrue [2019-08-06 16:58:25,453 INFO L138 BoogieDeclarations]: Found implementation of procedure alwaysTrue [2019-08-06 16:58:25,454 INFO L124 BoogieDeclarations]: Specification and implementation of procedure isZero given in one single declaration [2019-08-06 16:58:25,454 INFO L130 BoogieDeclarations]: Found specification of procedure isZero [2019-08-06 16:58:25,454 INFO L138 BoogieDeclarations]: Found implementation of procedure isZero [2019-08-06 16:58:25,455 INFO L124 BoogieDeclarations]: Specification and implementation of procedure notZero given in one single declaration [2019-08-06 16:58:25,455 INFO L130 BoogieDeclarations]: Found specification of procedure notZero [2019-08-06 16:58:25,455 INFO L138 BoogieDeclarations]: Found implementation of procedure notZero [2019-08-06 16:58:25,755 INFO L275 CfgBuilder]: Using library mode [2019-08-06 16:58:25,756 INFO L283 CfgBuilder]: Removed 0 assume(true) statements. [2019-08-06 16:58:25,757 INFO L202 PluginConnector]: Adding new model BugBackwardPredicates06.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.08 04:58:25 BoogieIcfgContainer [2019-08-06 16:58:25,757 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-08-06 16:58:25,757 INFO L113 PluginConnector]: ------------------------Symbolic Interpretation---------------------------- [2019-08-06 16:58:25,757 INFO L271 PluginConnector]: Initializing Symbolic Interpretation... [2019-08-06 16:58:25,758 INFO L275 PluginConnector]: Symbolic Interpretation initialized [2019-08-06 16:58:25,759 INFO L185 PluginConnector]: Executing the observer SymbolicInterpretationObserver from plugin Symbolic Interpretation for "BugBackwardPredicates06.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.08 04:58:25" (1/1) ... [2019-08-06 16:58:25,770 INFO L148 IcfgInterpreter]: Started Sifa with 1 locations of interest [2019-08-06 16:58:25,772 INFO L155 IcfgInterpreter]: Building call graph [2019-08-06 16:58:25,779 INFO L160 IcfgInterpreter]: Initial procedures are [main] [2019-08-06 16:58:25,786 INFO L165 IcfgInterpreter]: Starting interpretation [2019-08-06 16:58:25,788 INFO L185 IcfgInterpreter]: Interpreting procedure main with input of size 1 [2019-08-06 16:58:25,854 INFO L169 IcfgInterpreter]: Interpretation finished [2019-08-06 16:58:25,854 INFO L177 IcfgInterpreter]: Final predicates for locations of interest are: [2019-08-06 16:58:25,857 INFO L179 IcfgInterpreter]: Location mainErr0ASSERT_VIOLATIONASSERT has predicate 18#(and (not main_verum) (not (= main_y 0)) (or (<= 1 main_y) (= main_y 0)) (exists ((v_alwaysTrue_ret_BEFORE_RETURN_1 Bool)) (and (exists ((v_notZero_ret_BEFORE_RETURN_1 Bool)) (and (or (and (not v_alwaysTrue_ret_BEFORE_RETURN_1) (not v_notZero_ret_BEFORE_RETURN_1)) (and v_alwaysTrue_ret_BEFORE_RETURN_1 v_notZero_ret_BEFORE_RETURN_1)) (or (and (not (= main_y 0)) v_notZero_ret_BEFORE_RETURN_1) (= main_y 0)))) (or (and (not main_verum) (not v_alwaysTrue_ret_BEFORE_RETURN_1)) (and v_alwaysTrue_ret_BEFORE_RETURN_1 main_verum))))) [2019-08-06 16:58:25,858 WARN L88 terpretationObserver]: Some locations of interest might be reachable, see reported results. [2019-08-06 16:58:25,866 INFO L132 PluginConnector]: ------------------------ END Symbolic Interpretation---------------------------- [2019-08-06 16:58:25,869 INFO L168 Benchmark]: Toolchain (without parser) took 537.94 ms. Allocated memory is still 135.3 MB. Free memory was 106.0 MB in the beginning and 87.2 MB in the end (delta: 18.8 MB). Peak memory consumption was 18.8 MB. Max. memory is 7.1 GB. [2019-08-06 16:58:25,870 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.22 ms. Allocated memory is still 135.3 MB. Free memory is still 106.8 MB. There was no memory consumed. Max. memory is 7.1 GB. [2019-08-06 16:58:25,871 INFO L168 Benchmark]: Boogie Preprocessor took 44.40 ms. Allocated memory is still 135.3 MB. Free memory was 106.0 MB in the beginning and 103.8 MB in the end (delta: 2.2 MB). Peak memory consumption was 2.2 MB. Max. memory is 7.1 GB. [2019-08-06 16:58:25,872 INFO L168 Benchmark]: RCFGBuilder took 380.97 ms. Allocated memory is still 135.3 MB. Free memory was 103.8 MB in the beginning and 92.2 MB in the end (delta: 11.6 MB). Peak memory consumption was 11.6 MB. Max. memory is 7.1 GB. [2019-08-06 16:58:25,873 INFO L168 Benchmark]: Symbolic Interpretation took 109.18 ms. Allocated memory is still 135.3 MB. Free memory was 92.2 MB in the beginning and 87.2 MB in the end (delta: 5.0 MB). Peak memory consumption was 5.0 MB. Max. memory is 7.1 GB. [2019-08-06 16:58:25,877 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.symbolicinterpretation: - UnprovableResult [Line: 25]: 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 0.22 ms. Allocated memory is still 135.3 MB. Free memory is still 106.8 MB. There was no memory consumed. Max. memory is 7.1 GB. * Boogie Preprocessor took 44.40 ms. Allocated memory is still 135.3 MB. Free memory was 106.0 MB in the beginning and 103.8 MB in the end (delta: 2.2 MB). Peak memory consumption was 2.2 MB. Max. memory is 7.1 GB. * RCFGBuilder took 380.97 ms. Allocated memory is still 135.3 MB. Free memory was 103.8 MB in the beginning and 92.2 MB in the end (delta: 11.6 MB). Peak memory consumption was 11.6 MB. Max. memory is 7.1 GB. * Symbolic Interpretation took 109.18 ms. Allocated memory is still 135.3 MB. Free memory was 92.2 MB in the beginning and 87.2 MB in the end (delta: 5.0 MB). Peak memory consumption was 5.0 MB. Max. memory is 7.1 GB. RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request...