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/BugNoPredecessorOfReturnTransition.bpl -------------------------------------------------------------------------------- This is Ultimate 0.1.24-b8c145f [2019-08-05 12:05:36,569 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-08-05 12:05:36,571 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-08-05 12:05:36,583 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-08-05 12:05:36,584 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-08-05 12:05:36,585 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-08-05 12:05:36,587 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-08-05 12:05:36,589 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-08-05 12:05:36,590 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-08-05 12:05:36,591 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-08-05 12:05:36,592 INFO L181 SettingsManager]: Resetting Symbolic Interpretation preferences to default values [2019-08-05 12:05:36,593 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-08-05 12:05:36,593 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-08-05 12:05:36,594 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-08-05 12:05:36,595 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-08-05 12:05:36,597 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-08-05 12:05:36,598 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-08-05 12:05:36,599 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-08-05 12:05:36,601 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-08-05 12:05:36,603 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-08-05 12:05:36,605 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-08-05 12:05:36,606 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-08-05 12:05:36,607 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-08-05 12:05:36,608 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-08-05 12:05:36,611 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-08-05 12:05:36,611 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-08-05 12:05:36,612 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-08-05 12:05:36,613 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-08-05 12:05:36,613 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-08-05 12:05:36,614 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-08-05 12:05:36,614 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-08-05 12:05:36,615 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-08-05 12:05:36,616 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-08-05 12:05:36,617 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-08-05 12:05:36,618 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-08-05 12:05:36,618 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-08-05 12:05:36,619 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-08-05 12:05:36,619 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-08-05 12:05:36,620 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-08-05 12:05:36,621 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-08-05 12:05:36,622 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-08-05 12:05:36,649 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-08-05 12:05:36,671 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-08-05 12:05:36,675 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-08-05 12:05:36,677 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2019-08-05 12:05:36,677 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2019-08-05 12:05:36,678 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/regression/bpl/interprocedural/BugNoPredecessorOfReturnTransition.bpl [2019-08-05 12:05:36,679 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/regression/bpl/interprocedural/BugNoPredecessorOfReturnTransition.bpl' [2019-08-05 12:05:36,714 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-08-05 12:05:36,715 INFO L131 ToolchainWalker]: Walking toolchain with 3 elements. [2019-08-05 12:05:36,716 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-08-05 12:05:36,716 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-08-05 12:05:36,717 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-08-05 12:05:36,744 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "BugNoPredecessorOfReturnTransition.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 12:05:36" (1/1) ... [2019-08-05 12:05:36,746 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "BugNoPredecessorOfReturnTransition.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 12:05:36" (1/1) ... [2019-08-05 12:05:36,754 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "BugNoPredecessorOfReturnTransition.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 12:05:36" (1/1) ... [2019-08-05 12:05:36,754 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "BugNoPredecessorOfReturnTransition.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 12:05:36" (1/1) ... [2019-08-05 12:05:36,758 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "BugNoPredecessorOfReturnTransition.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 12:05:36" (1/1) ... [2019-08-05 12:05:36,760 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "BugNoPredecessorOfReturnTransition.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 12:05:36" (1/1) ... [2019-08-05 12:05:36,761 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "BugNoPredecessorOfReturnTransition.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 12:05:36" (1/1) ... [2019-08-05 12:05:36,763 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-08-05 12:05:36,765 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-08-05 12:05:36,765 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-08-05 12:05:36,765 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-08-05 12:05:36,768 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "BugNoPredecessorOfReturnTransition.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 12:05:36" (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 12:05:36,838 INFO L124 BoogieDeclarations]: Specification and implementation of procedure loop given in one single declaration [2019-08-05 12:05:36,839 INFO L130 BoogieDeclarations]: Found specification of procedure loop [2019-08-05 12:05:36,839 INFO L138 BoogieDeclarations]: Found implementation of procedure loop [2019-08-05 12:05:37,036 INFO L684 $ProcedureCfgBuilder]: dead code at ProgramPoint loopFINAL: assume true; [2019-08-05 12:05:37,039 INFO L275 CfgBuilder]: Using library mode [2019-08-05 12:05:37,039 INFO L283 CfgBuilder]: Removed 0 assume(true) statements. [2019-08-05 12:05:37,040 INFO L202 PluginConnector]: Adding new model BugNoPredecessorOfReturnTransition.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.08 12:05:37 BoogieIcfgContainer [2019-08-05 12:05:37,041 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-08-05 12:05:37,041 INFO L113 PluginConnector]: ------------------------Symbolic Interpretation---------------------------- [2019-08-05 12:05:37,041 INFO L271 PluginConnector]: Initializing Symbolic Interpretation... [2019-08-05 12:05:37,041 INFO L275 PluginConnector]: Symbolic Interpretation initialized [2019-08-05 12:05:37,046 INFO L185 PluginConnector]: Executing the observer SymbolicInterpretationObserver from plugin Symbolic Interpretation for "BugNoPredecessorOfReturnTransition.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.08 12:05:37" (1/1) ... [2019-08-05 12:05:37,058 INFO L148 IcfgInterpreter]: Started Sifa with 1 locations of interest [2019-08-05 12:05:37,061 INFO L155 IcfgInterpreter]: Building call graph [2019-08-05 12:05:37,070 INFO L160 IcfgInterpreter]: Initial procedures are [loop] [2019-08-05 12:05:37,079 INFO L165 IcfgInterpreter]: Starting interpretation [2019-08-05 12:05:37,081 INFO L184 IcfgInterpreter]: Interpreting procedure loop with input of size 1 [2019-08-05 12:05:37,342 WARN L188 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 8 [2019-08-05 12:05:37,469 INFO L169 IcfgInterpreter]: Interpretation finished [2019-08-05 12:05:37,470 INFO L176 IcfgInterpreter]: Final predicates for locations of interest are: [2019-08-05 12:05:37,473 INFO L178 IcfgInterpreter]: Location loopErr0ASSERT_VIOLATIONASSERT has predicate 26#(= loop_x (- 1)) [2019-08-05 12:05:37,480 INFO L132 PluginConnector]: ------------------------ END Symbolic Interpretation---------------------------- [2019-08-05 12:05:37,483 INFO L168 Benchmark]: Toolchain (without parser) took 766.89 ms. Allocated memory is still 134.2 MB. Free memory was 111.9 MB in the beginning and 90.6 MB in the end (delta: 21.3 MB). Peak memory consumption was 21.3 MB. Max. memory is 7.1 GB. [2019-08-05 12:05:37,484 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.25 ms. Allocated memory is still 134.2 MB. Free memory was 113.0 MB in the beginning and 112.8 MB in the end (delta: 209.8 kB). Peak memory consumption was 209.8 kB. Max. memory is 7.1 GB. [2019-08-05 12:05:37,485 INFO L168 Benchmark]: Boogie Preprocessor took 47.85 ms. Allocated memory is still 134.2 MB. Free memory was 111.7 MB in the beginning and 109.7 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. [2019-08-05 12:05:37,487 INFO L168 Benchmark]: RCFGBuilder took 276.21 ms. Allocated memory is still 134.2 MB. Free memory was 109.5 MB in the beginning and 101.4 MB in the end (delta: 8.2 MB). Peak memory consumption was 8.2 MB. Max. memory is 7.1 GB. [2019-08-05 12:05:37,488 INFO L168 Benchmark]: Symbolic Interpretation took 439.44 ms. Allocated memory is still 134.2 MB. Free memory was 101.4 MB in the beginning and 90.6 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 7.1 GB. [2019-08-05 12:05:37,493 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 0.25 ms. Allocated memory is still 134.2 MB. Free memory was 113.0 MB in the beginning and 112.8 MB in the end (delta: 209.8 kB). Peak memory consumption was 209.8 kB. Max. memory is 7.1 GB. * Boogie Preprocessor took 47.85 ms. Allocated memory is still 134.2 MB. Free memory was 111.7 MB in the beginning and 109.7 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. * RCFGBuilder took 276.21 ms. Allocated memory is still 134.2 MB. Free memory was 109.5 MB in the beginning and 101.4 MB in the end (delta: 8.2 MB). Peak memory consumption was 8.2 MB. Max. memory is 7.1 GB. * Symbolic Interpretation took 439.44 ms. Allocated memory is still 134.2 MB. Free memory was 101.4 MB in the beginning and 90.6 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 7.1 GB. RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request...