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/abstractInterpretation/regression/oct/loop-nested.bpl -------------------------------------------------------------------------------- This is Ultimate 0.1.24-b8c145f [2019-08-05 12:06:03,133 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-08-05 12:06:03,135 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-08-05 12:06:03,146 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-08-05 12:06:03,146 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-08-05 12:06:03,147 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-08-05 12:06:03,149 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-08-05 12:06:03,150 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-08-05 12:06:03,152 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-08-05 12:06:03,153 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-08-05 12:06:03,154 INFO L181 SettingsManager]: Resetting Symbolic Interpretation preferences to default values [2019-08-05 12:06:03,154 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-08-05 12:06:03,154 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-08-05 12:06:03,155 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-08-05 12:06:03,156 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-08-05 12:06:03,158 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-08-05 12:06:03,159 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-08-05 12:06:03,160 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-08-05 12:06:03,162 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-08-05 12:06:03,164 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-08-05 12:06:03,166 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-08-05 12:06:03,167 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-08-05 12:06:03,168 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-08-05 12:06:03,169 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-08-05 12:06:03,172 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-08-05 12:06:03,172 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-08-05 12:06:03,172 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-08-05 12:06:03,173 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-08-05 12:06:03,174 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-08-05 12:06:03,175 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-08-05 12:06:03,175 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-08-05 12:06:03,176 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-08-05 12:06:03,177 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-08-05 12:06:03,178 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-08-05 12:06:03,179 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-08-05 12:06:03,179 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-08-05 12:06:03,180 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-08-05 12:06:03,180 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-08-05 12:06:03,180 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-08-05 12:06:03,181 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-08-05 12:06:03,182 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-08-05 12:06:03,227 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-08-05 12:06:03,248 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-08-05 12:06:03,253 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-08-05 12:06:03,255 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2019-08-05 12:06:03,255 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2019-08-05 12:06:03,257 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/abstractInterpretation/regression/oct/loop-nested.bpl [2019-08-05 12:06:03,257 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/abstractInterpretation/regression/oct/loop-nested.bpl' [2019-08-05 12:06:03,292 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-08-05 12:06:03,294 INFO L131 ToolchainWalker]: Walking toolchain with 3 elements. [2019-08-05 12:06:03,294 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-08-05 12:06:03,294 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-08-05 12:06:03,294 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-08-05 12:06:03,319 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "loop-nested.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 12:06:03" (1/1) ... [2019-08-05 12:06:03,321 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "loop-nested.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 12:06:03" (1/1) ... [2019-08-05 12:06:03,328 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "loop-nested.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 12:06:03" (1/1) ... [2019-08-05 12:06:03,329 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "loop-nested.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 12:06:03" (1/1) ... [2019-08-05 12:06:03,332 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "loop-nested.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 12:06:03" (1/1) ... [2019-08-05 12:06:03,336 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "loop-nested.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 12:06:03" (1/1) ... [2019-08-05 12:06:03,337 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "loop-nested.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 12:06:03" (1/1) ... [2019-08-05 12:06:03,338 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-08-05 12:06:03,340 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-08-05 12:06:03,340 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-08-05 12:06:03,340 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-08-05 12:06:03,341 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "loop-nested.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 12:06:03" (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 12:06:03,408 INFO L124 BoogieDeclarations]: Specification and implementation of procedure EasyLoop given in one single declaration [2019-08-05 12:06:03,408 INFO L130 BoogieDeclarations]: Found specification of procedure EasyLoop [2019-08-05 12:06:03,409 INFO L138 BoogieDeclarations]: Found implementation of procedure EasyLoop [2019-08-05 12:06:03,663 INFO L275 CfgBuilder]: Using library mode [2019-08-05 12:06:03,663 INFO L283 CfgBuilder]: Removed 0 assume(true) statements. [2019-08-05 12:06:03,664 INFO L202 PluginConnector]: Adding new model loop-nested.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.08 12:06:03 BoogieIcfgContainer [2019-08-05 12:06:03,665 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-08-05 12:06:03,665 INFO L113 PluginConnector]: ------------------------Symbolic Interpretation---------------------------- [2019-08-05 12:06:03,665 INFO L271 PluginConnector]: Initializing Symbolic Interpretation... [2019-08-05 12:06:03,665 INFO L275 PluginConnector]: Symbolic Interpretation initialized [2019-08-05 12:06:03,667 INFO L185 PluginConnector]: Executing the observer SymbolicInterpretationObserver from plugin Symbolic Interpretation for "loop-nested.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.08 12:06:03" (1/1) ... [2019-08-05 12:06:03,678 INFO L148 IcfgInterpreter]: Started Sifa with 1 locations of interest [2019-08-05 12:06:03,681 INFO L155 IcfgInterpreter]: Building call graph [2019-08-05 12:06:03,689 INFO L160 IcfgInterpreter]: Initial procedures are [EasyLoop] [2019-08-05 12:06:03,697 INFO L165 IcfgInterpreter]: Starting interpretation [2019-08-05 12:06:03,699 INFO L184 IcfgInterpreter]: Interpreting procedure EasyLoop with input of size 1 [2019-08-05 12:06:03,888 WARN L188 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 8 DAG size of output: 6 [2019-08-05 12:06:04,017 WARN L188 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 8 DAG size of output: 6 [2019-08-05 12:06:04,591 WARN L188 SmtUtils]: Spent 328.00 ms on a formula simplification. DAG size of input: 27 DAG size of output: 15 [2019-08-05 12:06:04,889 WARN L188 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 19 DAG size of output: 14 [2019-08-05 12:06:04,938 INFO L169 IcfgInterpreter]: Interpretation finished [2019-08-05 12:06:04,938 INFO L176 IcfgInterpreter]: Final predicates for locations of interest are: [2019-08-05 12:06:04,941 INFO L178 IcfgInterpreter]: Location EasyLoopErr0ASSERT_VIOLATIONASSERT has predicate 46#(and (not (< EasyLoop_x 5)) (not (= EasyLoop_x EasyLoop_y)) (not (< EasyLoop_x EasyLoop_y)) (< EasyLoop_x 6)) [2019-08-05 12:06:04,949 INFO L132 PluginConnector]: ------------------------ END Symbolic Interpretation---------------------------- [2019-08-05 12:06:04,952 INFO L168 Benchmark]: Toolchain (without parser) took 1657.80 ms. Allocated memory was 143.1 MB in the beginning and 175.1 MB in the end (delta: 32.0 MB). Free memory was 111.6 MB in the beginning and 148.9 MB in the end (delta: -37.3 MB). Peak memory consumption was 53.8 MB. Max. memory is 7.1 GB. [2019-08-05 12:06:04,953 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.28 ms. Allocated memory is still 143.1 MB. Free memory was 112.7 MB in the beginning and 112.5 MB in the end (delta: 209.9 kB). Peak memory consumption was 209.9 kB. Max. memory is 7.1 GB. [2019-08-05 12:06:04,954 INFO L168 Benchmark]: Boogie Preprocessor took 44.83 ms. Allocated memory is still 143.1 MB. Free memory was 111.4 MB in the beginning and 109.2 MB in the end (delta: 2.2 MB). Peak memory consumption was 2.2 MB. Max. memory is 7.1 GB. [2019-08-05 12:06:04,955 INFO L168 Benchmark]: RCFGBuilder took 325.06 ms. Allocated memory is still 143.1 MB. Free memory was 109.2 MB in the beginning and 99.9 MB in the end (delta: 9.4 MB). Peak memory consumption was 9.4 MB. Max. memory is 7.1 GB. [2019-08-05 12:06:04,957 INFO L168 Benchmark]: Symbolic Interpretation took 1284.77 ms. Allocated memory was 143.1 MB in the beginning and 175.1 MB in the end (delta: 32.0 MB). Free memory was 99.9 MB in the beginning and 148.9 MB in the end (delta: -49.0 MB). Peak memory consumption was 42.0 MB. Max. memory is 7.1 GB. [2019-08-05 12:06:04,961 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.symbolicinterpretation: - UnprovableResult [Line: 20]: 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 0.28 ms. Allocated memory is still 143.1 MB. Free memory was 112.7 MB in the beginning and 112.5 MB in the end (delta: 209.9 kB). Peak memory consumption was 209.9 kB. Max. memory is 7.1 GB. * Boogie Preprocessor took 44.83 ms. Allocated memory is still 143.1 MB. Free memory was 111.4 MB in the beginning and 109.2 MB in the end (delta: 2.2 MB). Peak memory consumption was 2.2 MB. Max. memory is 7.1 GB. * RCFGBuilder took 325.06 ms. Allocated memory is still 143.1 MB. Free memory was 109.2 MB in the beginning and 99.9 MB in the end (delta: 9.4 MB). Peak memory consumption was 9.4 MB. Max. memory is 7.1 GB. * Symbolic Interpretation took 1284.77 ms. Allocated memory was 143.1 MB in the beginning and 175.1 MB in the end (delta: 32.0 MB). Free memory was 99.9 MB in the beginning and 148.9 MB in the end (delta: -49.0 MB). Peak memory consumption was 42.0 MB. Max. memory is 7.1 GB. RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request...