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-b8c145f [2019-08-05 11:48:46,153 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-08-05 11:48:46,156 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-08-05 11:48:46,171 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-08-05 11:48:46,171 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-08-05 11:48:46,172 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-08-05 11:48:46,174 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-08-05 11:48:46,177 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-08-05 11:48:46,179 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-08-05 11:48:46,180 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-08-05 11:48:46,183 INFO L181 SettingsManager]: Resetting Symbolic Interpretation preferences to default values [2019-08-05 11:48:46,184 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-08-05 11:48:46,184 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-08-05 11:48:46,185 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-08-05 11:48:46,186 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-08-05 11:48:46,189 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-08-05 11:48:46,190 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-08-05 11:48:46,194 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-08-05 11:48:46,195 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-08-05 11:48:46,197 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-08-05 11:48:46,199 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-08-05 11:48:46,200 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-08-05 11:48:46,201 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-08-05 11:48:46,202 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-08-05 11:48:46,204 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-08-05 11:48:46,204 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-08-05 11:48:46,204 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-08-05 11:48:46,205 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-08-05 11:48:46,206 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-08-05 11:48:46,207 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-08-05 11:48:46,207 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-08-05 11:48:46,208 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-08-05 11:48:46,208 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-08-05 11:48:46,209 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-08-05 11:48:46,210 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-08-05 11:48:46,210 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-08-05 11:48:46,211 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-08-05 11:48:46,211 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-08-05 11:48:46,212 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-08-05 11:48:46,212 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-08-05 11:48:46,213 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-08-05 11:48:46,240 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-08-05 11:48:46,251 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-08-05 11:48:46,255 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-08-05 11:48:46,256 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2019-08-05 11:48:46,257 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2019-08-05 11:48:46,257 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/toy/tooDifficultLoopInvariant/doubleLoopUniformIterations.bpl [2019-08-05 11:48:46,258 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/toy/tooDifficultLoopInvariant/doubleLoopUniformIterations.bpl' [2019-08-05 11:48:46,288 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-08-05 11:48:46,290 INFO L131 ToolchainWalker]: Walking toolchain with 3 elements. [2019-08-05 11:48:46,291 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-08-05 11:48:46,291 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-08-05 11:48:46,291 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-08-05 11:48:46,315 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "doubleLoopUniformIterations.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 11:48:46" (1/1) ... [2019-08-05 11:48:46,316 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "doubleLoopUniformIterations.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 11:48:46" (1/1) ... [2019-08-05 11:48:46,323 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "doubleLoopUniformIterations.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 11:48:46" (1/1) ... [2019-08-05 11:48:46,324 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "doubleLoopUniformIterations.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 11:48:46" (1/1) ... [2019-08-05 11:48:46,326 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "doubleLoopUniformIterations.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 11:48:46" (1/1) ... [2019-08-05 11:48:46,331 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "doubleLoopUniformIterations.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 11:48:46" (1/1) ... [2019-08-05 11:48:46,332 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "doubleLoopUniformIterations.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 11:48:46" (1/1) ... [2019-08-05 11:48:46,333 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-08-05 11:48:46,334 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-08-05 11:48:46,334 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-08-05 11:48:46,334 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-08-05 11:48:46,335 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "doubleLoopUniformIterations.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 11:48:46" (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 11:48:46,398 INFO L130 BoogieDeclarations]: Found specification of procedure Main [2019-08-05 11:48:46,399 INFO L138 BoogieDeclarations]: Found implementation of procedure Main [2019-08-05 11:48:46,624 INFO L275 CfgBuilder]: Using library mode [2019-08-05 11:48:46,624 INFO L283 CfgBuilder]: Removed 1 assume(true) statements. [2019-08-05 11:48:46,626 INFO L202 PluginConnector]: Adding new model doubleLoopUniformIterations.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.08 11:48:46 BoogieIcfgContainer [2019-08-05 11:48:46,626 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-08-05 11:48:46,626 INFO L113 PluginConnector]: ------------------------Symbolic Interpretation---------------------------- [2019-08-05 11:48:46,626 INFO L271 PluginConnector]: Initializing Symbolic Interpretation... [2019-08-05 11:48:46,627 INFO L275 PluginConnector]: Symbolic Interpretation initialized [2019-08-05 11:48:46,628 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 11:48:46" (1/1) ... [2019-08-05 11:48:46,639 INFO L148 IcfgInterpreter]: Started Sifa with 2 locations of interest [2019-08-05 11:48:46,642 INFO L155 IcfgInterpreter]: Building call graph [2019-08-05 11:48:46,648 INFO L160 IcfgInterpreter]: Initial procedures are [Main] [2019-08-05 11:48:46,657 INFO L165 IcfgInterpreter]: Starting interpretation [2019-08-05 11:48:46,658 INFO L184 IcfgInterpreter]: Interpreting procedure Main with input of size 1 [2019-08-05 11:48:46,918 WARN L188 SmtUtils]: Spent 135.00 ms on a formula simplification that was a NOOP. DAG size: 11 [2019-08-05 11:48:47,144 INFO L169 IcfgInterpreter]: Interpretation finished [2019-08-05 11:48:47,144 INFO L176 IcfgInterpreter]: Final predicates for locations of interest are: [2019-08-05 11:48:47,147 INFO L178 IcfgInterpreter]: Location MainErr0ASSERT_VIOLATIONASSERT has predicate 31#false [2019-08-05 11:48:47,147 INFO L178 IcfgInterpreter]: Location MainErr1ASSERT_VIOLATIONASSERT has predicate 28#(and (= Main_x 0) (not (= Main_y 0))) [2019-08-05 11:48:47,156 INFO L132 PluginConnector]: ------------------------ END Symbolic Interpretation---------------------------- [2019-08-05 11:48:47,159 INFO L168 Benchmark]: Toolchain (without parser) took 868.03 ms. Allocated memory is still 139.5 MB. Free memory was 109.0 MB in the beginning and 82.8 MB in the end (delta: 26.2 MB). Peak memory consumption was 26.2 MB. Max. memory is 7.1 GB. [2019-08-05 11:48:47,160 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.20 ms. Allocated memory is still 139.5 MB. Free memory was 110.2 MB in the beginning and 110.0 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. [2019-08-05 11:48:47,162 INFO L168 Benchmark]: Boogie Preprocessor took 42.67 ms. Allocated memory is still 139.5 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 11:48:47,163 INFO L168 Benchmark]: RCFGBuilder took 292.34 ms. Allocated memory is still 139.5 MB. Free memory was 106.8 MB in the beginning and 97.6 MB in the end (delta: 9.2 MB). Peak memory consumption was 9.2 MB. Max. memory is 7.1 GB. [2019-08-05 11:48:47,164 INFO L168 Benchmark]: Symbolic Interpretation took 530.08 ms. Allocated memory is still 139.5 MB. Free memory was 97.6 MB in the beginning and 82.8 MB in the end (delta: 14.8 MB). Peak memory consumption was 14.8 MB. Max. memory is 7.1 GB. [2019-08-05 11:48:47,168 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 110.2 MB in the beginning and 110.0 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. * Boogie Preprocessor took 42.67 ms. Allocated memory is still 139.5 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 292.34 ms. Allocated memory is still 139.5 MB. Free memory was 106.8 MB in the beginning and 97.6 MB in the end (delta: 9.2 MB). Peak memory consumption was 9.2 MB. Max. memory is 7.1 GB. * Symbolic Interpretation took 530.08 ms. Allocated memory is still 139.5 MB. Free memory was 97.6 MB in the beginning and 82.8 MB in the end (delta: 14.8 MB). Peak memory consumption was 14.8 MB. Max. memory is 7.1 GB. RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request...