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/DivisibilityInterpolantRequired01-BackwardSuccess.bpl -------------------------------------------------------------------------------- This is Ultimate 0.1.24-b03553c [2019-08-05 18:12:18,033 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-08-05 18:12:18,035 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-08-05 18:12:18,047 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-08-05 18:12:18,047 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-08-05 18:12:18,048 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-08-05 18:12:18,049 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-08-05 18:12:18,051 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-08-05 18:12:18,053 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-08-05 18:12:18,054 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-08-05 18:12:18,055 INFO L181 SettingsManager]: Resetting Symbolic Interpretation preferences to default values [2019-08-05 18:12:18,056 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-08-05 18:12:18,056 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-08-05 18:12:18,057 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-08-05 18:12:18,058 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-08-05 18:12:18,059 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-08-05 18:12:18,060 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-08-05 18:12:18,061 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-08-05 18:12:18,063 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-08-05 18:12:18,065 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-08-05 18:12:18,067 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-08-05 18:12:18,069 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-08-05 18:12:18,070 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-08-05 18:12:18,071 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-08-05 18:12:18,073 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-08-05 18:12:18,073 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-08-05 18:12:18,074 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-08-05 18:12:18,075 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-08-05 18:12:18,075 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-08-05 18:12:18,076 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-08-05 18:12:18,077 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-08-05 18:12:18,077 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-08-05 18:12:18,078 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-08-05 18:12:18,079 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-08-05 18:12:18,080 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-08-05 18:12:18,080 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-08-05 18:12:18,081 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-08-05 18:12:18,081 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-08-05 18:12:18,081 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-08-05 18:12:18,082 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-08-05 18:12:18,083 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-08-05 18:12:18,129 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-08-05 18:12:18,148 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-08-05 18:12:18,151 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-08-05 18:12:18,153 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2019-08-05 18:12:18,154 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2019-08-05 18:12:18,154 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/toy/tooDifficultLoopInvariant/DivisibilityInterpolantRequired01-BackwardSuccess.bpl [2019-08-05 18:12:18,155 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/toy/tooDifficultLoopInvariant/DivisibilityInterpolantRequired01-BackwardSuccess.bpl' [2019-08-05 18:12:18,187 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-08-05 18:12:18,189 INFO L131 ToolchainWalker]: Walking toolchain with 3 elements. [2019-08-05 18:12:18,190 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-08-05 18:12:18,190 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-08-05 18:12:18,191 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-08-05 18:12:18,217 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "DivisibilityInterpolantRequired01-BackwardSuccess.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 06:12:18" (1/1) ... [2019-08-05 18:12:18,218 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "DivisibilityInterpolantRequired01-BackwardSuccess.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 06:12:18" (1/1) ... [2019-08-05 18:12:18,227 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "DivisibilityInterpolantRequired01-BackwardSuccess.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 06:12:18" (1/1) ... [2019-08-05 18:12:18,227 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "DivisibilityInterpolantRequired01-BackwardSuccess.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 06:12:18" (1/1) ... [2019-08-05 18:12:18,230 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "DivisibilityInterpolantRequired01-BackwardSuccess.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 06:12:18" (1/1) ... [2019-08-05 18:12:18,235 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "DivisibilityInterpolantRequired01-BackwardSuccess.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 06:12:18" (1/1) ... [2019-08-05 18:12:18,237 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "DivisibilityInterpolantRequired01-BackwardSuccess.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 06:12:18" (1/1) ... [2019-08-05 18:12:18,238 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-08-05 18:12:18,239 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-08-05 18:12:18,240 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-08-05 18:12:18,240 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-08-05 18:12:18,242 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "DivisibilityInterpolantRequired01-BackwardSuccess.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 06:12:18" (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 18:12:18,315 INFO L130 BoogieDeclarations]: Found specification of procedure proc [2019-08-05 18:12:18,316 INFO L138 BoogieDeclarations]: Found implementation of procedure proc [2019-08-05 18:12:18,544 INFO L275 CfgBuilder]: Using library mode [2019-08-05 18:12:18,545 INFO L283 CfgBuilder]: Removed 1 assume(true) statements. [2019-08-05 18:12:18,546 INFO L202 PluginConnector]: Adding new model DivisibilityInterpolantRequired01-BackwardSuccess.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.08 06:12:18 BoogieIcfgContainer [2019-08-05 18:12:18,547 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-08-05 18:12:18,548 INFO L113 PluginConnector]: ------------------------Symbolic Interpretation---------------------------- [2019-08-05 18:12:18,548 INFO L271 PluginConnector]: Initializing Symbolic Interpretation... [2019-08-05 18:12:18,548 INFO L275 PluginConnector]: Symbolic Interpretation initialized [2019-08-05 18:12:18,549 INFO L185 PluginConnector]: Executing the observer SymbolicInterpretationObserver from plugin Symbolic Interpretation for "DivisibilityInterpolantRequired01-BackwardSuccess.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.08 06:12:18" (1/1) ... [2019-08-05 18:12:18,562 INFO L148 IcfgInterpreter]: Started Sifa with 1 locations of interest [2019-08-05 18:12:18,565 INFO L155 IcfgInterpreter]: Building call graph [2019-08-05 18:12:18,574 INFO L160 IcfgInterpreter]: Initial procedures are [proc] [2019-08-05 18:12:18,584 INFO L165 IcfgInterpreter]: Starting interpretation [2019-08-05 18:12:18,588 INFO L185 IcfgInterpreter]: Interpreting procedure proc with input of size 1 [2019-08-05 18:12:18,705 INFO L169 IcfgInterpreter]: Interpretation finished [2019-08-05 18:12:18,705 INFO L177 IcfgInterpreter]: Final predicates for locations of interest are: [2019-08-05 18:12:18,708 INFO L179 IcfgInterpreter]: Location procErr0ASSERT_VIOLATIONASSERT has predicate 23#(not (= 0 (mod proc_a 2))) [2019-08-05 18:12:18,709 WARN L88 terpretationObserver]: Some locations of interest might be reachable, see reported results. [2019-08-05 18:12:18,716 INFO L132 PluginConnector]: ------------------------ END Symbolic Interpretation---------------------------- [2019-08-05 18:12:18,719 INFO L168 Benchmark]: Toolchain (without parser) took 529.12 ms. Allocated memory is still 132.6 MB. Free memory was 109.0 MB in the beginning and 93.3 MB in the end (delta: 15.7 MB). Peak memory consumption was 15.7 MB. Max. memory is 7.1 GB. [2019-08-05 18:12:18,721 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.22 ms. Allocated memory is still 132.6 MB. Free memory was 110.3 MB in the beginning and 110.0 MB in the end (delta: 209.9 kB). Peak memory consumption was 209.9 kB. Max. memory is 7.1 GB. [2019-08-05 18:12:18,722 INFO L168 Benchmark]: Boogie Preprocessor took 48.62 ms. Allocated memory is still 132.6 MB. Free memory was 109.0 MB in the beginning and 106.8 MB in the end (delta: 2.2 MB). Peak memory consumption was 2.2 MB. Max. memory is 7.1 GB. [2019-08-05 18:12:18,723 INFO L168 Benchmark]: RCFGBuilder took 307.29 ms. Allocated memory is still 132.6 MB. Free memory was 106.8 MB in the beginning and 98.3 MB in the end (delta: 8.5 MB). Peak memory consumption was 8.5 MB. Max. memory is 7.1 GB. [2019-08-05 18:12:18,724 INFO L168 Benchmark]: Symbolic Interpretation took 169.49 ms. Allocated memory is still 132.6 MB. Free memory was 98.3 MB in the beginning and 93.3 MB in the end (delta: 5.0 MB). Peak memory consumption was 5.0 MB. Max. memory is 7.1 GB. [2019-08-05 18:12:18,728 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.symbolicinterpretation: - UnprovableResult [Line: 21]: 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 132.6 MB. Free memory was 110.3 MB in the beginning and 110.0 MB in the end (delta: 209.9 kB). Peak memory consumption was 209.9 kB. Max. memory is 7.1 GB. * Boogie Preprocessor took 48.62 ms. Allocated memory is still 132.6 MB. Free memory was 109.0 MB in the beginning and 106.8 MB in the end (delta: 2.2 MB). Peak memory consumption was 2.2 MB. Max. memory is 7.1 GB. * RCFGBuilder took 307.29 ms. Allocated memory is still 132.6 MB. Free memory was 106.8 MB in the beginning and 98.3 MB in the end (delta: 8.5 MB). Peak memory consumption was 8.5 MB. Max. memory is 7.1 GB. * Symbolic Interpretation took 169.49 ms. Allocated memory is still 132.6 MB. Free memory was 98.3 MB in the beginning and 93.3 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...