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/20170304-DifficultPathPrograms/nested.i_4.bpl -------------------------------------------------------------------------------- This is Ultimate 0.1.24-3b9210c [2019-08-06 16:52:37,342 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-08-06 16:52:37,344 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-08-06 16:52:37,356 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-08-06 16:52:37,357 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-08-06 16:52:37,358 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-08-06 16:52:37,359 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-08-06 16:52:37,361 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-08-06 16:52:37,363 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-08-06 16:52:37,364 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-08-06 16:52:37,365 INFO L181 SettingsManager]: Resetting Symbolic Interpretation preferences to default values [2019-08-06 16:52:37,366 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-08-06 16:52:37,367 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-08-06 16:52:37,368 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-08-06 16:52:37,369 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-08-06 16:52:37,370 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-08-06 16:52:37,371 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-08-06 16:52:37,372 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-08-06 16:52:37,374 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-08-06 16:52:37,376 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-08-06 16:52:37,378 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-08-06 16:52:37,379 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-08-06 16:52:37,380 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-08-06 16:52:37,381 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-08-06 16:52:37,383 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-08-06 16:52:37,384 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-08-06 16:52:37,384 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-08-06 16:52:37,385 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-08-06 16:52:37,385 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-08-06 16:52:37,386 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-08-06 16:52:37,387 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-08-06 16:52:37,387 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-08-06 16:52:37,388 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-08-06 16:52:37,389 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-08-06 16:52:37,390 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-08-06 16:52:37,390 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-08-06 16:52:37,391 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-08-06 16:52:37,391 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-08-06 16:52:37,392 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-08-06 16:52:37,393 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-08-06 16:52:37,393 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-08-06 16:52:37,421 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-08-06 16:52:37,436 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-08-06 16:52:37,440 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-08-06 16:52:37,444 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2019-08-06 16:52:37,446 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2019-08-06 16:52:37,446 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20170304-DifficultPathPrograms/nested.i_4.bpl [2019-08-06 16:52:37,447 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20170304-DifficultPathPrograms/nested.i_4.bpl' [2019-08-06 16:52:37,491 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-08-06 16:52:37,493 INFO L131 ToolchainWalker]: Walking toolchain with 3 elements. [2019-08-06 16:52:37,494 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-08-06 16:52:37,494 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-08-06 16:52:37,494 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-08-06 16:52:37,523 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "nested.i_4.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 06.08 04:52:37" (1/1) ... [2019-08-06 16:52:37,526 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "nested.i_4.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 06.08 04:52:37" (1/1) ... [2019-08-06 16:52:37,533 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "nested.i_4.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 06.08 04:52:37" (1/1) ... [2019-08-06 16:52:37,534 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "nested.i_4.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 06.08 04:52:37" (1/1) ... [2019-08-06 16:52:37,538 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "nested.i_4.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 06.08 04:52:37" (1/1) ... [2019-08-06 16:52:37,540 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "nested.i_4.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 06.08 04:52:37" (1/1) ... [2019-08-06 16:52:37,542 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "nested.i_4.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 06.08 04:52:37" (1/1) ... [2019-08-06 16:52:37,543 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-08-06 16:52:37,544 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-08-06 16:52:37,545 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-08-06 16:52:37,545 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-08-06 16:52:37,547 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "nested.i_4.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 06.08 04:52:37" (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 16:52:37,618 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-08-06 16:52:37,618 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-08-06 16:52:37,851 INFO L684 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2019-08-06 16:52:37,853 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-08-06 16:52:37,853 INFO L283 CfgBuilder]: Removed 2 assume(true) statements. [2019-08-06 16:52:37,855 INFO L202 PluginConnector]: Adding new model nested.i_4.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.08 04:52:37 BoogieIcfgContainer [2019-08-06 16:52:37,855 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-08-06 16:52:37,856 INFO L113 PluginConnector]: ------------------------Symbolic Interpretation---------------------------- [2019-08-06 16:52:37,856 INFO L271 PluginConnector]: Initializing Symbolic Interpretation... [2019-08-06 16:52:37,856 INFO L275 PluginConnector]: Symbolic Interpretation initialized [2019-08-06 16:52:37,857 INFO L185 PluginConnector]: Executing the observer SymbolicInterpretationObserver from plugin Symbolic Interpretation for "nested.i_4.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.08 04:52:37" (1/1) ... [2019-08-06 16:52:37,869 INFO L148 IcfgInterpreter]: Started Sifa with 1 locations of interest [2019-08-06 16:52:37,872 INFO L155 IcfgInterpreter]: Building call graph [2019-08-06 16:52:37,879 INFO L160 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-08-06 16:52:37,887 INFO L165 IcfgInterpreter]: Starting interpretation [2019-08-06 16:52:37,889 INFO L185 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 [2019-08-06 16:52:38,061 INFO L169 IcfgInterpreter]: Interpretation finished [2019-08-06 16:52:38,061 INFO L177 IcfgInterpreter]: Final predicates for locations of interest are: [2019-08-06 16:52:38,065 INFO L179 IcfgInterpreter]: Location ULTIMATE.startErr0ASSERT_VIOLATIONASSERT has predicate 57#(and (not (< ULTIMATE.start_main_~i~5 ULTIMATE.start_main_~n~5)) (= |ULTIMATE.start___VERIFIER_assert_#in~cond| ULTIMATE.start___VERIFIER_assert_~cond) (= 0 ULTIMATE.start___VERIFIER_assert_~cond) (not (< ULTIMATE.start_main_~j~5 ULTIMATE.start_main_~m~5)) (= (ite (<= 100 ULTIMATE.start_main_~k~5) 1 0) |ULTIMATE.start___VERIFIER_assert_#in~cond|) (< ULTIMATE.start_main_~j~5 (+ ULTIMATE.start_main_~m~5 1))) [2019-08-06 16:52:38,069 WARN L88 terpretationObserver]: Some locations of interest might be reachable, see reported results. [2019-08-06 16:52:38,096 INFO L132 PluginConnector]: ------------------------ END Symbolic Interpretation---------------------------- [2019-08-06 16:52:38,102 INFO L168 Benchmark]: Toolchain (without parser) took 605.23 ms. Allocated memory is still 139.5 MB. Free memory was 107.8 MB in the beginning and 88.5 MB in the end (delta: 19.3 MB). Peak memory consumption was 19.3 MB. Max. memory is 7.1 GB. [2019-08-06 16:52:38,107 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.23 ms. Allocated memory is still 139.5 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 16:52:38,111 INFO L168 Benchmark]: Boogie Preprocessor took 50.27 ms. Allocated memory is still 139.5 MB. Free memory was 107.6 MB in the beginning and 105.7 MB in the end (delta: 1.9 MB). Peak memory consumption was 1.9 MB. Max. memory is 7.1 GB. [2019-08-06 16:52:38,113 INFO L168 Benchmark]: RCFGBuilder took 310.83 ms. Allocated memory is still 139.5 MB. Free memory was 105.4 MB in the beginning and 95.3 MB in the end (delta: 10.1 MB). Peak memory consumption was 10.1 MB. Max. memory is 7.1 GB. [2019-08-06 16:52:38,114 INFO L168 Benchmark]: Symbolic Interpretation took 240.64 ms. Allocated memory is still 139.5 MB. Free memory was 95.3 MB in the beginning and 88.7 MB in the end (delta: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 7.1 GB. [2019-08-06 16:52:38,125 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.symbolicinterpretation: - UnprovableResult [Line: 50]: 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 0.23 ms. Allocated memory is still 139.5 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 50.27 ms. Allocated memory is still 139.5 MB. Free memory was 107.6 MB in the beginning and 105.7 MB in the end (delta: 1.9 MB). Peak memory consumption was 1.9 MB. Max. memory is 7.1 GB. * RCFGBuilder took 310.83 ms. Allocated memory is still 139.5 MB. Free memory was 105.4 MB in the beginning and 95.3 MB in the end (delta: 10.1 MB). Peak memory consumption was 10.1 MB. Max. memory is 7.1 GB. * Symbolic Interpretation took 240.64 ms. Allocated memory is still 139.5 MB. Free memory was 95.3 MB in the beginning and 88.7 MB in the end (delta: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 7.1 GB. RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request...